add first release of viz

viz/css/normalize.css

@@ -0,0 +1,427 @@
+/*! normalize.css v3.0.2 | MIT License | git.io/normalize */
+
+/**
+ * 1. Set default font family to sans-serif.
+ * 2. Prevent iOS text size adjust after orientation change, without disabling
+ *    user zoom.
+ */
+
+html {
+  font-family: sans-serif; /* 1 */
+  -ms-text-size-adjust: 100%; /* 2 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/**
+ * Remove default margin.
+ */
+
+body {
+  margin: 0;
+}
+
+/* HTML5 display definitions
+   ========================================================================== */
+
+/**
+ * Correct `block` display not defined for any HTML5 element in IE 8/9.
+ * Correct `block` display not defined for `details` or `summary` in IE 10/11
+ * and Firefox.
+ * Correct `block` display not defined for `main` in IE 11.
+ */
+
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+main,
+menu,
+nav,
+section,
+summary {
+  display: block;
+}
+
+/**
+ * 1. Correct `inline-block` display not defined in IE 8/9.
+ * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
+ */
+
+audio,
+canvas,
+progress,
+video {
+  display: inline-block; /* 1 */
+  vertical-align: baseline; /* 2 */
+}
+
+/**
+ * Prevent modern browsers from displaying `audio` without controls.
+ * Remove excess height in iOS 5 devices.
+ */
+
+audio:not([controls]) {
+  display: none;
+  height: 0;
+}
+
+/**
+ * Address `[hidden]` styling not present in IE 8/9/10.
+ * Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22.
+ */
+
+[hidden],
+template {
+  display: none;
+}
+
+/* Links
+   ========================================================================== */
+
+/**
+ * Remove the gray background color from active links in IE 10.
+ */
+
+a {
+  background-color: transparent;
+}
+
+/**
+ * Improve readability when focused and also mouse hovered in all browsers.
+ */
+
+a:active,
+a:hover {
+  outline: 0;
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
+ */
+
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+
+/**
+ * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
+ */
+
+b,
+strong {
+  font-weight: bold;
+}
+
+/**
+ * Address styling not present in Safari and Chrome.
+ */
+
+dfn {
+  font-style: italic;
+}
+
+/**
+ * Address variable `h1` font-size and margin within `section` and `article`
+ * contexts in Firefox 4+, Safari, and Chrome.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/**
+ * Address styling not present in IE 8/9.
+ */
+
+mark {
+  background: #ff0;
+  color: #000;
+}
+
+/**
+ * Address inconsistent and variable font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` affecting `line-height` in all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sup {
+  top: -0.5em;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove border when inside `a` element in IE 8/9/10.
+ */
+
+img {
+  border: 0;
+}
+
+/**
+ * Correct overflow not hidden in IE 9/10/11.
+ */
+
+svg:not(:root) {
+  overflow: hidden;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * Address margin not present in IE 8/9 and Safari.
+ */
+
+figure {
+  margin: 1em 40px;
+}
+
+/**
+ * Address differences between Firefox and other browsers.
+ */
+
+hr {
+  -moz-box-sizing: content-box;
+  box-sizing: content-box;
+  height: 0;
+}
+
+/**
+ * Contain overflow in all browsers.
+ */
+
+pre {
+  overflow: auto;
+}
+
+/**
+ * Address odd `em`-unit font size rendering in all browsers.
+ */
+
+code,
+kbd,
+pre,
+samp {
+  font-family: monospace, monospace;
+  font-size: 1em;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * Known limitation: by default, Chrome and Safari on OS X allow very limited
+ * styling of `select`, unless a `border` property is set.
+ */
+
+/**
+ * 1. Correct color not being inherited.
+ *    Known issue: affects color of disabled elements.
+ * 2. Correct font properties not being inherited.
+ * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  color: inherit; /* 1 */
+  font: inherit; /* 2 */
+  margin: 0; /* 3 */
+}
+
+/**
+ * Address `overflow` set to `hidden` in IE 8/9/10/11.
+ */
+
+button {
+  overflow: visible;
+}
+
+/**
+ * Address inconsistent `text-transform` inheritance for `button` and `select`.
+ * All other form control elements do not inherit `text-transform` values.
+ * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
+ * Correct `select` style inheritance in Firefox.
+ */
+
+button,
+select {
+  text-transform: none;
+}
+
+/**
+ * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
+ *    and `video` controls.
+ * 2. Correct inability to style clickable `input` types in iOS.
+ * 3. Improve usability and consistency of cursor style between image-type
+ *    `input` and others.
+ */
+
+button,
+html input[type="button"], /* 1 */
+input[type="reset"],
+input[type="submit"] {
+  -webkit-appearance: button; /* 2 */
+  cursor: pointer; /* 3 */
+}
+
+/**
+ * Re-set default cursor for disabled elements.
+ */
+
+button[disabled],
+html input[disabled] {
+  cursor: default;
+}
+
+/**
+ * Remove inner padding and border in Firefox 4+.
+ */
+
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+  border: 0;
+  padding: 0;
+}
+
+/**
+ * Address Firefox 4+ setting `line-height` on `input` using `!important` in
+ * the UA stylesheet.
+ */
+
+input {
+  line-height: normal;
+}
+
+/**
+ * It's recommended that you don't attempt to style these elements.
+ * Firefox's implementation doesn't respect box-sizing, padding, or width.
+ *
+ * 1. Address box sizing set to `content-box` in IE 8/9/10.
+ * 2. Remove excess padding in IE 8/9/10.
+ */
+
+input[type="checkbox"],
+input[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Fix the cursor style for Chrome's increment/decrement buttons. For certain
+ * `font-size` values of the `input`, it causes the cursor style of the
+ * decrement button to change from `default` to `text`.
+ */
+
+input[type="number"]::-webkit-inner-spin-button,
+input[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+/**
+ * 1. Address `appearance` set to `searchfield` in Safari and Chrome.
+ * 2. Address `box-sizing` set to `border-box` in Safari and Chrome
+ *    (include `-moz` to future-proof).
+ */
+
+input[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  -moz-box-sizing: content-box;
+  -webkit-box-sizing: content-box; /* 2 */
+  box-sizing: content-box;
+}
+
+/**
+ * Remove inner padding and search cancel button in Safari and Chrome on OS X.
+ * Safari (but not Chrome) clips the cancel button when the search input has
+ * padding (and `textfield` appearance).
+ */
+
+input[type="search"]::-webkit-search-cancel-button,
+input[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+/**
+ * Define consistent border, margin, and padding.
+ */
+
+fieldset {
+  border: 1px solid #c0c0c0;
+  margin: 0 2px;
+  padding: 0.35em 0.625em 0.75em;
+}
+
+/**
+ * 1. Correct `color` not being inherited in IE 8/9/10/11.
+ * 2. Remove padding so people aren't caught out if they zero out fieldsets.
+ */
+
+legend {
+  border: 0; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Remove default vertical scrollbar in IE 8/9/10/11.
+ */
+
+textarea {
+  overflow: auto;
+}
+
+/**
+ * Don't inherit the `font-weight` (applied by a rule above).
+ * NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
+ */
+
+optgroup {
+  font-weight: bold;
+}
+
+/* Tables
+   ========================================================================== */
+
+/**
+ * Remove most spacing between table cells.
+ */
+
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+
+td,
+th {
+  padding: 0;
+}

viz/css/skeleton.css

@@ -0,0 +1,418 @@
+/*
+* Skeleton V2.0.4
+* Copyright 2014, Dave Gamache
+* www.getskeleton.com
+* Free to use under the MIT license.
+* http://www.opensource.org/licenses/mit-license.php
+* 12/29/2014
+*/
+
+
+/* Table of contents
+––––––––––––––––––––––––––––––––––––––––––––––––––
+- Grid
+- Base Styles
+- Typography
+- Links
+- Buttons
+- Forms
+- Lists
+- Code
+- Tables
+- Spacing
+- Utilities
+- Clearing
+- Media Queries
+*/
+
+
+/* Grid
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+.container {
+  position: relative;
+  width: 100%;
+  max-width: 960px;
+  margin: 0 auto;
+  padding: 0 20px;
+  box-sizing: border-box; }
+.column,
+.columns {
+  width: 100%;
+  float: left;
+  box-sizing: border-box; }
+
+/* For devices larger than 400px */
+@media (min-width: 400px) {
+  .container {
+    width: 85%;
+    padding: 0; }
+}
+
+/* For devices larger than 550px */
+@media (min-width: 550px) {
+  .container {
+    width: 80%; }
+  .column,
+  .columns {
+    margin-left: 4%; }
+  .column:first-child,
+  .columns:first-child {
+    margin-left: 0; }
+
+  .one.column,
+  .one.columns                    { width: 4.66666666667%; }
+  .two.columns                    { width: 13.3333333333%; }
+  .three.columns                  { width: 22%;            }
+  .four.columns                   { width: 30.6666666667%; }
+  .five.columns                   { width: 39.3333333333%; }
+  .six.columns                    { width: 48%;            }
+  .seven.columns                  { width: 56.6666666667%; }
+  .eight.columns                  { width: 65.3333333333%; }
+  .nine.columns                   { width: 74.0%;          }
+  .ten.columns                    { width: 82.6666666667%; }
+  .eleven.columns                 { width: 91.3333333333%; }
+  .twelve.columns                 { width: 100%; margin-left: 0; }
+
+  .one-third.column               { width: 30.6666666667%; }
+  .two-thirds.column              { width: 65.3333333333%; }
+
+  .one-half.column                { width: 48%; }
+
+  /* Offsets */
+  .offset-by-one.column,
+  .offset-by-one.columns          { margin-left: 8.66666666667%; }
+  .offset-by-two.column,
+  .offset-by-two.columns          { margin-left: 17.3333333333%; }
+  .offset-by-three.column,
+  .offset-by-three.columns        { margin-left: 26%;            }
+  .offset-by-four.column,
+  .offset-by-four.columns         { margin-left: 34.6666666667%; }
+  .offset-by-five.column,
+  .offset-by-five.columns         { margin-left: 43.3333333333%; }
+  .offset-by-six.column,
+  .offset-by-six.columns          { margin-left: 52%;            }
+  .offset-by-seven.column,
+  .offset-by-seven.columns        { margin-left: 60.6666666667%; }
+  .offset-by-eight.column,
+  .offset-by-eight.columns        { margin-left: 69.3333333333%; }
+  .offset-by-nine.column,
+  .offset-by-nine.columns         { margin-left: 78.0%;          }
+  .offset-by-ten.column,
+  .offset-by-ten.columns          { margin-left: 86.6666666667%; }
+  .offset-by-eleven.column,
+  .offset-by-eleven.columns       { margin-left: 95.3333333333%; }
+
+  .offset-by-one-third.column,
+  .offset-by-one-third.columns    { margin-left: 34.6666666667%; }
+  .offset-by-two-thirds.column,
+  .offset-by-two-thirds.columns   { margin-left: 69.3333333333%; }
+
+  .offset-by-one-half.column,
+  .offset-by-one-half.columns     { margin-left: 52%; }
+
+}
+
+
+/* Base Styles
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+/* NOTE
+html is set to 62.5% so that all the REM measurements throughout Skeleton
+are based on 10px sizing. So basically 1.5rem = 15px :) */
+html {
+  font-size: 62.5%; }
+body {
+  font-size: 1.5em; /* currently ems cause chrome bug misinterpreting rems on body element */
+  line-height: 1.6;
+  font-weight: 400;
+  font-family: "Raleway", "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif;
+  color: #222; }
+
+
+/* Typography
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+h1, h2, h3, h4, h5, h6 {
+  margin-top: 0;
+  margin-bottom: 2rem;
+  font-weight: 300; }
+h1 { font-size: 4.0rem; line-height: 1.2;  letter-spacing: -.1rem;}
+h2 { font-size: 3.6rem; line-height: 1.25; letter-spacing: -.1rem; }
+h3 { font-size: 3.0rem; line-height: 1.3;  letter-spacing: -.1rem; }
+h4 { font-size: 2.4rem; line-height: 1.35; letter-spacing: -.08rem; }
+h5 { font-size: 1.8rem; line-height: 1.5;  letter-spacing: -.05rem; }
+h6 { font-size: 1.5rem; line-height: 1.6;  letter-spacing: 0; }
+
+/* Larger than phablet */
+@media (min-width: 550px) {
+  h1 { font-size: 5.0rem; }
+  h2 { font-size: 4.2rem; }
+  h3 { font-size: 3.6rem; }
+  h4 { font-size: 3.0rem; }
+  h5 { font-size: 2.4rem; }
+  h6 { font-size: 1.5rem; }
+}
+
+p {
+  margin-top: 0; }
+
+
+/* Links
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+a {
+  color: #1EAEDB; }
+a:hover {
+  color: #0FA0CE; }
+
+
+/* Buttons
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+.button,
+button,
+input[type="submit"],
+input[type="reset"],
+input[type="button"] {
+  display: inline-block;
+  height: 38px;
+  padding: 0 30px;
+  color: #555;
+  text-align: center;
+  font-size: 11px;
+  font-weight: 600;
+  line-height: 38px;
+  letter-spacing: .1rem;
+  text-transform: uppercase;
+  text-decoration: none;
+  white-space: nowrap;
+  background-color: transparent;
+  border-radius: 4px;
+  border: 1px solid #bbb;
+  cursor: pointer;
+  box-sizing: border-box; }
+.button:hover,
+button:hover,
+input[type="submit"]:hover,
+input[type="reset"]:hover,
+input[type="button"]:hover,
+.button:focus,
+button:focus,
+input[type="submit"]:focus,
+input[type="reset"]:focus,
+input[type="button"]:focus {
+  color: #333;
+  border-color: #888;
+  outline: 0; }
+.button.button-primary,
+button.button-primary,
+input[type="submit"].button-primary,
+input[type="reset"].button-primary,
+input[type="button"].button-primary {
+  color: #FFF;
+  background-color: #33C3F0;
+  border-color: #33C3F0; }
+.button.button-primary:hover,
+button.button-primary:hover,
+input[type="submit"].button-primary:hover,
+input[type="reset"].button-primary:hover,
+input[type="button"].button-primary:hover,
+.button.button-primary:focus,
+button.button-primary:focus,
+input[type="submit"].button-primary:focus,
+input[type="reset"].button-primary:focus,
+input[type="button"].button-primary:focus {
+  color: #FFF;
+  background-color: #1EAEDB;
+  border-color: #1EAEDB; }
+
+
+/* Forms
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+input[type="email"],
+input[type="number"],
+input[type="search"],
+input[type="text"],
+input[type="tel"],
+input[type="url"],
+input[type="password"],
+textarea,
+select {
+  height: 38px;
+  padding: 6px 10px; /* The 6px vertically centers text on FF, ignored by Webkit */
+  background-color: #fff;
+  border: 1px solid #D1D1D1;
+  border-radius: 4px;
+  box-shadow: none;
+  box-sizing: border-box; }
+/* Removes awkward default styles on some inputs for iOS */
+input[type="email"],
+input[type="number"],
+input[type="search"],
+input[type="text"],
+input[type="tel"],
+input[type="url"],
+input[type="password"],
+textarea {
+  -webkit-appearance: none;
+     -moz-appearance: none;
+          appearance: none; }
+textarea {
+  min-height: 65px;
+  padding-top: 6px;
+  padding-bottom: 6px; }
+input[type="email"]:focus,
+input[type="number"]:focus,
+input[type="search"]:focus,
+input[type="text"]:focus,
+input[type="tel"]:focus,
+input[type="url"]:focus,
+input[type="password"]:focus,
+textarea:focus,
+select:focus {
+  border: 1px solid #33C3F0;
+  outline: 0; }
+label,
+legend {
+  display: block;
+  margin-bottom: .5rem;
+  font-weight: 600; }
+fieldset {
+  padding: 0;
+  border-width: 0; }
+input[type="checkbox"],
+input[type="radio"] {
+  display: inline; }
+label > .label-body {
+  display: inline-block;
+  margin-left: .5rem;
+  font-weight: normal; }
+
+
+/* Lists
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+ul {
+  list-style: circle inside; }
+ol {
+  list-style: decimal inside; }
+ol, ul {
+  padding-left: 0;
+  margin-top: 0; }
+ul ul,
+ul ol,
+ol ol,
+ol ul {
+  margin: 1.5rem 0 1.5rem 3rem;
+  font-size: 90%; }
+li {
+  margin-bottom: 1rem; }
+
+
+/* Code
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+code {
+  padding: .2rem .5rem;
+  margin: 0 .2rem;
+  font-size: 90%;
+  white-space: nowrap;
+  background: #F1F1F1;
+  border: 1px solid #E1E1E1;
+  border-radius: 4px; }
+pre > code {
+  display: block;
+  padding: 1rem 1.5rem;
+  white-space: pre; }
+
+
+/* Tables
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+th,
+td {
+  padding: 12px 15px;
+  text-align: left;
+  border-bottom: 1px solid #E1E1E1; }
+th:first-child,
+td:first-child {
+  padding-left: 0; }
+th:last-child,
+td:last-child {
+  padding-right: 0; }
+
+
+/* Spacing
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+button,
+.button {
+  margin-bottom: 1rem; }
+input,
+textarea,
+select,
+fieldset {
+  margin-bottom: 1.5rem; }
+pre,
+blockquote,
+dl,
+figure,
+table,
+p,
+ul,
+ol,
+form {
+  margin-bottom: 2.5rem; }
+
+
+/* Utilities
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+.u-full-width {
+  width: 100%;
+  box-sizing: border-box; }
+.u-max-full-width {
+  max-width: 100%;
+  box-sizing: border-box; }
+.u-pull-right {
+  float: right; }
+.u-pull-left {
+  float: left; }
+
+
+/* Misc
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+hr {
+  margin-top: 3rem;
+  margin-bottom: 3.5rem;
+  border-width: 0;
+  border-top: 1px solid #E1E1E1; }
+
+
+/* Clearing
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+
+/* Self Clearing Goodness */
+.container:after,
+.row:after,
+.u-cf {
+  content: "";
+  display: table;
+  clear: both; }
+
+
+/* Media Queries
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+/*
+Note: The best way to structure the use of media queries is to create the queries
+near the relevant code. For example, if you wanted to change the styles for buttons
+on small devices, paste the mobile query code up in the buttons section and style it
+there.
+*/
+
+
+/* Larger than mobile */
+@media (min-width: 400px) {}
+
+/* Larger than phablet (also point when grid becomes active) */
+@media (min-width: 550px) {}
+
+/* Larger than tablet */
+@media (min-width: 750px) {}
+
+/* Larger than desktop */
+@media (min-width: 1000px) {}
+
+/* Larger than Desktop HD */
+@media (min-width: 1200px) {}

viz/index.html

@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>viz</title>
+
+        <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet">
+        <link rel="stylesheet" href="css/normalize.css">
+        <link rel="stylesheet" href="css/skeleton.css">
+
+        <style type="text/css">
+            * {
+                font-family: 'Source Code Pro', monospace;
+            }
+            #viz {
+                //border: 1px solid grey;
+            }
+        </style>
+
+        <script src="js/main.js"></script>
+    </head>
+    <body>
+        <p align="center" style="margin-top:1%;"> <canvas id="viz"></canvas> </p>
+        <div class="container">
+            <div class="row" style="margin-top: 10%; margin-bottom:1%;">
+                <div class="twelve column">
+                    <h1>1</h1>
+                    <p>
+                    Using clojurescript and
+                    <a href="https://quil.info">quil</a>.
+                    </p>
+                    <p>
+                    Any point can only be occupied by a single dot.</br>
+                    A line cannot intersect another line.</br>
+                    Every tick a point may spawn 0 or more adjacent points.
+                    </p>
+                    <p>
+                    In this implementation adjacent points are chosen randomly,
+                    both in number and direction. The result is somewhere between
+                    Conway's Game of Life and white noise.
+                    </p>
+                    <p>
+                    This implementation is hella slow, most time is spent drawing
+                    the lines. This was optimized so that adjacent parallel lines
+                    are drawn in a single operation, but that produced negligible
+                    benefit.
+                    </p>
+
+                    <!-- (#_#) -->
+
+                    <pre>
+                    git clone https://github.com/mediocregopher/viz.git
+                    git checkout 7e9e898466ce1663ef295deef0e3d0ac86a36de0
+                    </pre>
+                </div>
+            </div>
+    </body>
+</html>

viz/js/main.js

@@ -0,0 +1,5 @@
+var CLOSURE_UNCOMPILED_DEFINES = null;
+if(typeof goog == "undefined") document.write('<script src="out/goog/base.js"></script>');
+document.write('<script src="out/cljs_deps.js"></script>');
+document.write('<script>if (typeof goog == "undefined") console.warn("ClojureScript could not load :main, did you forget to specify :asset-path?");</script>');
+document.write('<script>goog.require("viz.core");</script>');

viz/out/cljs_deps.js

@@ -0,0 +1,17 @@
+goog.addDependency("base.js", ['goog'], []);
+goog.addDependency("../cljs/core.js", ['cljs.core'], ['goog.string', 'goog.object', 'goog.math.Integer', 'goog.string.StringBuffer', 'goog.array', 'goog.math.Long']);
+goog.addDependency("../viz/forest.js", ['viz.forest'], ['cljs.core']);
+goog.addDependency("../processing.js", ['org.processingjs.Processing'], []);
+goog.addDependency("../quil/middlewares/deprecated_options.js", ['quil.middlewares.deprecated_options'], ['cljs.core']);
+goog.addDependency("../clojure/string.js", ['clojure.string'], ['goog.string', 'cljs.core', 'goog.string.StringBuffer']);
+goog.addDependency("../quil/util.js", ['quil.util'], ['cljs.core', 'clojure.string']);
+goog.addDependency("../quil/sketch.js", ['quil.sketch'], ['goog.dom', 'cljs.core', 'quil.middlewares.deprecated_options', 'goog.events.EventType', 'goog.events', 'quil.util']);
+goog.addDependency("../quil/core.js", ['quil.core'], ['org.processingjs.Processing', 'quil.sketch', 'cljs.core', 'clojure.string', 'quil.util']);
+goog.addDependency("../quil/middlewares/navigation_3d.js", ['quil.middlewares.navigation_3d'], ['cljs.core', 'quil.core']);
+goog.addDependency("../quil/middlewares/navigation_2d.js", ['quil.middlewares.navigation_2d'], ['cljs.core', 'quil.core']);
+goog.addDependency("../quil/middlewares/fun_mode.js", ['quil.middlewares.fun_mode'], ['cljs.core', 'quil.core']);
+goog.addDependency("../quil/middleware.js", ['quil.middleware'], ['cljs.core', 'quil.middlewares.navigation_3d', 'quil.middlewares.navigation_2d', 'quil.middlewares.fun_mode']);
+goog.addDependency("../clojure/set.js", ['clojure.set'], ['cljs.core']);
+goog.addDependency("../viz/grid.js", ['viz.grid'], ['cljs.core']);
+goog.addDependency("../viz/ghost.js", ['viz.ghost'], ['cljs.core', 'viz.forest', 'clojure.set', 'viz.grid']);
+goog.addDependency("../viz/core.js", ['viz.core'], ['goog.string', 'cljs.core', 'viz.forest', 'quil.core', 'quil.middleware', 'goog.string.format', 'viz.ghost', 'viz.grid']);

viz/out/clojure/set.cljs

@@ -0,0 +1,161 @@
+;   Copyright (c) Rich Hickey. All rights reserved.
+;   The use and distribution terms for this software are covered by the
+;   Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
+;   which can be found in the file epl-v10.html at the root of this distribution.
+;   By using this software in any fashion, you are agreeing to be bound by
+;   the terms of this license.
+;   You must not remove this notice, or any other, from this software.
+
+(ns ^{:doc "Set operations such as union/intersection."
+       :author "Rich Hickey"}
+       clojure.set)
+
+(defn- bubble-max-key [k coll]
+  "Move a maximal element of coll according to fn k (which returns a number) 
+   to the front of coll."
+  (let [max (apply max-key k coll)]
+    (cons max (remove #(identical? max %) coll))))
+
+(defn union
+  "Return a set that is the union of the input sets"
+  ([] #{})
+  ([s1] s1)
+  ([s1 s2]
+     (if (< (count s1) (count s2))
+       (reduce conj s2 s1)
+       (reduce conj s1 s2)))
+  ([s1 s2 & sets]
+     (let [bubbled-sets (bubble-max-key count (conj sets s2 s1))]
+       (reduce into (first bubbled-sets) (rest bubbled-sets)))))
+
+(defn intersection
+  "Return a set that is the intersection of the input sets"
+  ([s1] s1)
+  ([s1 s2]
+     (if (< (count s2) (count s1))
+       (recur s2 s1)
+       (reduce (fn [result item]
+                   (if (contains? s2 item)
+		     result
+                     (disj result item)))
+	       s1 s1)))
+  ([s1 s2 & sets] 
+     (let [bubbled-sets (bubble-max-key #(- (count %)) (conj sets s2 s1))]
+       (reduce intersection (first bubbled-sets) (rest bubbled-sets)))))
+
+(defn difference
+  "Return a set that is the first set without elements of the remaining sets"
+  ([s1] s1)
+  ([s1 s2] 
+     (if (< (count s1) (count s2))
+       (reduce (fn [result item] 
+                   (if (contains? s2 item) 
+                     (disj result item) 
+                     result))
+               s1 s1)
+       (reduce disj s1 s2)))
+  ([s1 s2 & sets] 
+     (reduce difference s1 (conj sets s2))))
+
+
+(defn select
+  "Returns a set of the elements for which pred is true"
+  [pred xset]
+    (reduce (fn [s k] (if (pred k) s (disj s k)))
+            xset xset))
+
+(defn project
+  "Returns a rel of the elements of xrel with only the keys in ks"
+  [xrel ks]
+    (set (map #(select-keys % ks) xrel)))
+
+(defn rename-keys
+  "Returns the map with the keys in kmap renamed to the vals in kmap"
+  [map kmap]
+    (reduce
+     (fn [m [old new]]
+       (if (contains? map old)
+         (assoc m new (get map old))
+         m))
+     (apply dissoc map (keys kmap)) kmap))
+
+(defn rename
+  "Returns a rel of the maps in xrel with the keys in kmap renamed to the vals in kmap"
+  [xrel kmap]
+    (set (map #(rename-keys % kmap) xrel)))
+
+(defn index
+  "Returns a map of the distinct values of ks in the xrel mapped to a
+  set of the maps in xrel with the corresponding values of ks."
+  [xrel ks]
+    (reduce
+     (fn [m x]
+       (let [ik (select-keys x ks)]
+         (assoc m ik (conj (get m ik #{}) x))))
+     {} xrel))
+   
+(defn map-invert
+  "Returns the map with the vals mapped to the keys."
+  [m] (reduce (fn [m [k v]] (assoc m v k)) {} m))
+
+(defn join
+  "When passed 2 rels, returns the rel corresponding to the natural
+  join. When passed an additional keymap, joins on the corresponding
+  keys."
+  ([xrel yrel] ;natural join
+   (if (and (seq xrel) (seq yrel))
+     (let [ks (intersection (set (keys (first xrel))) (set (keys (first yrel))))
+           [r s] (if (<= (count xrel) (count yrel))
+                   [xrel yrel]
+                   [yrel xrel])
+           idx (index r ks)]
+       (reduce (fn [ret x]
+                 (let [found (idx (select-keys x ks))]
+                   (if found
+                     (reduce #(conj %1 (merge %2 x)) ret found)
+                     ret)))
+               #{} s))
+     #{}))
+  ([xrel yrel km] ;arbitrary key mapping
+   (let [[r s k] (if (<= (count xrel) (count yrel))
+                   [xrel yrel (map-invert km)]
+                   [yrel xrel km])
+         idx (index r (vals k))]
+     (reduce (fn [ret x]
+               (let [found (idx (rename-keys (select-keys x (keys k)) k))]
+                 (if found
+                   (reduce #(conj %1 (merge %2 x)) ret found)
+                   ret)))
+             #{} s))))
+
+(defn subset? 
+  "Is set1 a subset of set2?"
+  [set1 set2]
+  (and (<= (count set1) (count set2))
+       (every? #(contains? set2 %) set1)))
+
+(defn superset? 
+  "Is set1 a superset of set2?"
+  [set1 set2]
+  (and (>= (count set1) (count set2))
+       (every? #(contains? set1 %) set2)))
+
+(comment
+(refer 'set)
+(def xs #{{:a 11 :b 1 :c 1 :d 4}
+         {:a 2 :b 12 :c 2 :d 6}
+         {:a 3 :b 3 :c 3 :d 8 :f 42}})
+
+(def ys #{{:a 11 :b 11 :c 11 :e 5}
+         {:a 12 :b 11 :c 12 :e 3}
+         {:a 3 :b 3 :c 3 :e 7 }})
+
+(join xs ys)
+(join xs (rename ys {:b :yb :c :yc}) {:a :a})
+
+(union #{:a :b :c} #{:c :d :e })
+(difference #{:a :b :c} #{:c :d :e})
+(intersection #{:a :b :c} #{:c :d :e})
+
+(index ys [:b]))
+

viz/out/clojure/set.js

@@ -0,0 +1,400 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('clojure.set');
+goog.require('cljs.core');
+clojure.set.bubble_max_key = (function clojure$set$bubble_max_key(k,coll){
+
+var max = cljs.core.apply.call(null,cljs.core.max_key,k,coll);
+return cljs.core.cons.call(null,max,cljs.core.remove.call(null,((function (max){
+return (function (p1__7981_SHARP_){
+return (max === p1__7981_SHARP_);
+});})(max))
+,coll));
+});
+/**
+ * Return a set that is the union of the input sets
+ */
+clojure.set.union = (function clojure$set$union(var_args){
+var args7982 = [];
+var len__7927__auto___7988 = arguments.length;
+var i__7928__auto___7989 = (0);
+while(true){
+if((i__7928__auto___7989 < len__7927__auto___7988)){
+args7982.push((arguments[i__7928__auto___7989]));
+
+var G__7990 = (i__7928__auto___7989 + (1));
+i__7928__auto___7989 = G__7990;
+continue;
+} else {
+}
+break;
+}
+
+var G__7987 = args7982.length;
+switch (G__7987) {
+case 0:
+return clojure.set.union.cljs$core$IFn$_invoke$arity$0();
+
+break;
+case 1:
+return clojure.set.union.cljs$core$IFn$_invoke$arity$1((arguments[(0)]));
+
+break;
+case 2:
+return clojure.set.union.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+default:
+var argseq__7946__auto__ = (new cljs.core.IndexedSeq(args7982.slice((2)),(0),null));
+return clojure.set.union.cljs$core$IFn$_invoke$arity$variadic((arguments[(0)]),(arguments[(1)]),argseq__7946__auto__);
+
+}
+});
+
+clojure.set.union.cljs$core$IFn$_invoke$arity$0 = (function (){
+return cljs.core.PersistentHashSet.EMPTY;
+});
+
+clojure.set.union.cljs$core$IFn$_invoke$arity$1 = (function (s1){
+return s1;
+});
+
+clojure.set.union.cljs$core$IFn$_invoke$arity$2 = (function (s1,s2){
+if((cljs.core.count.call(null,s1) < cljs.core.count.call(null,s2))){
+return cljs.core.reduce.call(null,cljs.core.conj,s2,s1);
+} else {
+return cljs.core.reduce.call(null,cljs.core.conj,s1,s2);
+}
+});
+
+clojure.set.union.cljs$core$IFn$_invoke$arity$variadic = (function (s1,s2,sets){
+var bubbled_sets = clojure.set.bubble_max_key.call(null,cljs.core.count,cljs.core.conj.call(null,sets,s2,s1));
+return cljs.core.reduce.call(null,cljs.core.into,cljs.core.first.call(null,bubbled_sets),cljs.core.rest.call(null,bubbled_sets));
+});
+
+clojure.set.union.cljs$lang$applyTo = (function (seq7983){
+var G__7984 = cljs.core.first.call(null,seq7983);
+var seq7983__$1 = cljs.core.next.call(null,seq7983);
+var G__7985 = cljs.core.first.call(null,seq7983__$1);
+var seq7983__$2 = cljs.core.next.call(null,seq7983__$1);
+return clojure.set.union.cljs$core$IFn$_invoke$arity$variadic(G__7984,G__7985,seq7983__$2);
+});
+
+clojure.set.union.cljs$lang$maxFixedArity = (2);
+
+/**
+ * Return a set that is the intersection of the input sets
+ */
+clojure.set.intersection = (function clojure$set$intersection(var_args){
+var args7993 = [];
+var len__7927__auto___7999 = arguments.length;
+var i__7928__auto___8000 = (0);
+while(true){
+if((i__7928__auto___8000 < len__7927__auto___7999)){
+args7993.push((arguments[i__7928__auto___8000]));
+
+var G__8001 = (i__7928__auto___8000 + (1));
+i__7928__auto___8000 = G__8001;
+continue;
+} else {
+}
+break;
+}
+
+var G__7998 = args7993.length;
+switch (G__7998) {
+case 1:
+return clojure.set.intersection.cljs$core$IFn$_invoke$arity$1((arguments[(0)]));
+
+break;
+case 2:
+return clojure.set.intersection.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+default:
+var argseq__7946__auto__ = (new cljs.core.IndexedSeq(args7993.slice((2)),(0),null));
+return clojure.set.intersection.cljs$core$IFn$_invoke$arity$variadic((arguments[(0)]),(arguments[(1)]),argseq__7946__auto__);
+
+}
+});
+
+clojure.set.intersection.cljs$core$IFn$_invoke$arity$1 = (function (s1){
+return s1;
+});
+
+clojure.set.intersection.cljs$core$IFn$_invoke$arity$2 = (function (s1,s2){
+while(true){
+if((cljs.core.count.call(null,s2) < cljs.core.count.call(null,s1))){
+var G__8003 = s2;
+var G__8004 = s1;
+s1 = G__8003;
+s2 = G__8004;
+continue;
+} else {
+return cljs.core.reduce.call(null,((function (s1,s2){
+return (function (result,item){
+if(cljs.core.contains_QMARK_.call(null,s2,item)){
+return result;
+} else {
+return cljs.core.disj.call(null,result,item);
+}
+});})(s1,s2))
+,s1,s1);
+}
+break;
+}
+});
+
+clojure.set.intersection.cljs$core$IFn$_invoke$arity$variadic = (function (s1,s2,sets){
+var bubbled_sets = clojure.set.bubble_max_key.call(null,(function (p1__7992_SHARP_){
+return (- cljs.core.count.call(null,p1__7992_SHARP_));
+}),cljs.core.conj.call(null,sets,s2,s1));
+return cljs.core.reduce.call(null,clojure.set.intersection,cljs.core.first.call(null,bubbled_sets),cljs.core.rest.call(null,bubbled_sets));
+});
+
+clojure.set.intersection.cljs$lang$applyTo = (function (seq7994){
+var G__7995 = cljs.core.first.call(null,seq7994);
+var seq7994__$1 = cljs.core.next.call(null,seq7994);
+var G__7996 = cljs.core.first.call(null,seq7994__$1);
+var seq7994__$2 = cljs.core.next.call(null,seq7994__$1);
+return clojure.set.intersection.cljs$core$IFn$_invoke$arity$variadic(G__7995,G__7996,seq7994__$2);
+});
+
+clojure.set.intersection.cljs$lang$maxFixedArity = (2);
+
+/**
+ * Return a set that is the first set without elements of the remaining sets
+ */
+clojure.set.difference = (function clojure$set$difference(var_args){
+var args8005 = [];
+var len__7927__auto___8011 = arguments.length;
+var i__7928__auto___8012 = (0);
+while(true){
+if((i__7928__auto___8012 < len__7927__auto___8011)){
+args8005.push((arguments[i__7928__auto___8012]));
+
+var G__8013 = (i__7928__auto___8012 + (1));
+i__7928__auto___8012 = G__8013;
+continue;
+} else {
+}
+break;
+}
+
+var G__8010 = args8005.length;
+switch (G__8010) {
+case 1:
+return clojure.set.difference.cljs$core$IFn$_invoke$arity$1((arguments[(0)]));
+
+break;
+case 2:
+return clojure.set.difference.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+default:
+var argseq__7946__auto__ = (new cljs.core.IndexedSeq(args8005.slice((2)),(0),null));
+return clojure.set.difference.cljs$core$IFn$_invoke$arity$variadic((arguments[(0)]),(arguments[(1)]),argseq__7946__auto__);
+
+}
+});
+
+clojure.set.difference.cljs$core$IFn$_invoke$arity$1 = (function (s1){
+return s1;
+});
+
+clojure.set.difference.cljs$core$IFn$_invoke$arity$2 = (function (s1,s2){
+if((cljs.core.count.call(null,s1) < cljs.core.count.call(null,s2))){
+return cljs.core.reduce.call(null,(function (result,item){
+if(cljs.core.contains_QMARK_.call(null,s2,item)){
+return cljs.core.disj.call(null,result,item);
+} else {
+return result;
+}
+}),s1,s1);
+} else {
+return cljs.core.reduce.call(null,cljs.core.disj,s1,s2);
+}
+});
+
+clojure.set.difference.cljs$core$IFn$_invoke$arity$variadic = (function (s1,s2,sets){
+return cljs.core.reduce.call(null,clojure.set.difference,s1,cljs.core.conj.call(null,sets,s2));
+});
+
+clojure.set.difference.cljs$lang$applyTo = (function (seq8006){
+var G__8007 = cljs.core.first.call(null,seq8006);
+var seq8006__$1 = cljs.core.next.call(null,seq8006);
+var G__8008 = cljs.core.first.call(null,seq8006__$1);
+var seq8006__$2 = cljs.core.next.call(null,seq8006__$1);
+return clojure.set.difference.cljs$core$IFn$_invoke$arity$variadic(G__8007,G__8008,seq8006__$2);
+});
+
+clojure.set.difference.cljs$lang$maxFixedArity = (2);
+
+/**
+ * Returns a set of the elements for which pred is true
+ */
+clojure.set.select = (function clojure$set$select(pred,xset){
+return cljs.core.reduce.call(null,(function (s,k){
+if(cljs.core.truth_(pred.call(null,k))){
+return s;
+} else {
+return cljs.core.disj.call(null,s,k);
+}
+}),xset,xset);
+});
+/**
+ * Returns a rel of the elements of xrel with only the keys in ks
+ */
+clojure.set.project = (function clojure$set$project(xrel,ks){
+return cljs.core.set.call(null,cljs.core.map.call(null,(function (p1__8015_SHARP_){
+return cljs.core.select_keys.call(null,p1__8015_SHARP_,ks);
+}),xrel));
+});
+/**
+ * Returns the map with the keys in kmap renamed to the vals in kmap
+ */
+clojure.set.rename_keys = (function clojure$set$rename_keys(map,kmap){
+return cljs.core.reduce.call(null,(function (m,p__8020){
+var vec__8021 = p__8020;
+var old = cljs.core.nth.call(null,vec__8021,(0),null);
+var new$ = cljs.core.nth.call(null,vec__8021,(1),null);
+if(cljs.core.contains_QMARK_.call(null,map,old)){
+return cljs.core.assoc.call(null,m,new$,cljs.core.get.call(null,map,old));
+} else {
+return m;
+}
+}),cljs.core.apply.call(null,cljs.core.dissoc,map,cljs.core.keys.call(null,kmap)),kmap);
+});
+/**
+ * Returns a rel of the maps in xrel with the keys in kmap renamed to the vals in kmap
+ */
+clojure.set.rename = (function clojure$set$rename(xrel,kmap){
+return cljs.core.set.call(null,cljs.core.map.call(null,(function (p1__8024_SHARP_){
+return clojure.set.rename_keys.call(null,p1__8024_SHARP_,kmap);
+}),xrel));
+});
+/**
+ * Returns a map of the distinct values of ks in the xrel mapped to a
+ *   set of the maps in xrel with the corresponding values of ks.
+ */
+clojure.set.index = (function clojure$set$index(xrel,ks){
+return cljs.core.reduce.call(null,(function (m,x){
+var ik = cljs.core.select_keys.call(null,x,ks);
+return cljs.core.assoc.call(null,m,ik,cljs.core.conj.call(null,cljs.core.get.call(null,m,ik,cljs.core.PersistentHashSet.EMPTY),x));
+}),cljs.core.PersistentArrayMap.EMPTY,xrel);
+});
+/**
+ * Returns the map with the vals mapped to the keys.
+ */
+clojure.set.map_invert = (function clojure$set$map_invert(m){
+return cljs.core.reduce.call(null,(function (m__$1,p__8029){
+var vec__8030 = p__8029;
+var k = cljs.core.nth.call(null,vec__8030,(0),null);
+var v = cljs.core.nth.call(null,vec__8030,(1),null);
+return cljs.core.assoc.call(null,m__$1,v,k);
+}),cljs.core.PersistentArrayMap.EMPTY,m);
+});
+/**
+ * When passed 2 rels, returns the rel corresponding to the natural
+ *   join. When passed an additional keymap, joins on the corresponding
+ *   keys.
+ */
+clojure.set.join = (function clojure$set$join(var_args){
+var args8037 = [];
+var len__7927__auto___8046 = arguments.length;
+var i__7928__auto___8047 = (0);
+while(true){
+if((i__7928__auto___8047 < len__7927__auto___8046)){
+args8037.push((arguments[i__7928__auto___8047]));
+
+var G__8048 = (i__7928__auto___8047 + (1));
+i__7928__auto___8047 = G__8048;
+continue;
+} else {
+}
+break;
+}
+
+var G__8039 = args8037.length;
+switch (G__8039) {
+case 2:
+return clojure.set.join.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+case 3:
+return clojure.set.join.cljs$core$IFn$_invoke$arity$3((arguments[(0)]),(arguments[(1)]),(arguments[(2)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args8037.length)].join('')));
+
+}
+});
+
+clojure.set.join.cljs$core$IFn$_invoke$arity$2 = (function (xrel,yrel){
+if((cljs.core.seq.call(null,xrel)) && (cljs.core.seq.call(null,yrel))){
+var ks = clojure.set.intersection.call(null,cljs.core.set.call(null,cljs.core.keys.call(null,cljs.core.first.call(null,xrel))),cljs.core.set.call(null,cljs.core.keys.call(null,cljs.core.first.call(null,yrel))));
+var vec__8040 = (((cljs.core.count.call(null,xrel) <= cljs.core.count.call(null,yrel)))?new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [xrel,yrel], null):new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [yrel,xrel], null));
+var r = cljs.core.nth.call(null,vec__8040,(0),null);
+var s = cljs.core.nth.call(null,vec__8040,(1),null);
+var idx = clojure.set.index.call(null,r,ks);
+return cljs.core.reduce.call(null,((function (ks,vec__8040,r,s,idx){
+return (function (ret,x){
+var found = idx.call(null,cljs.core.select_keys.call(null,x,ks));
+if(cljs.core.truth_(found)){
+return cljs.core.reduce.call(null,((function (found,ks,vec__8040,r,s,idx){
+return (function (p1__8033_SHARP_,p2__8034_SHARP_){
+return cljs.core.conj.call(null,p1__8033_SHARP_,cljs.core.merge.call(null,p2__8034_SHARP_,x));
+});})(found,ks,vec__8040,r,s,idx))
+,ret,found);
+} else {
+return ret;
+}
+});})(ks,vec__8040,r,s,idx))
+,cljs.core.PersistentHashSet.EMPTY,s);
+} else {
+return cljs.core.PersistentHashSet.EMPTY;
+}
+});
+
+clojure.set.join.cljs$core$IFn$_invoke$arity$3 = (function (xrel,yrel,km){
+var vec__8043 = (((cljs.core.count.call(null,xrel) <= cljs.core.count.call(null,yrel)))?new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [xrel,yrel,clojure.set.map_invert.call(null,km)], null):new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [yrel,xrel,km], null));
+var r = cljs.core.nth.call(null,vec__8043,(0),null);
+var s = cljs.core.nth.call(null,vec__8043,(1),null);
+var k = cljs.core.nth.call(null,vec__8043,(2),null);
+var idx = clojure.set.index.call(null,r,cljs.core.vals.call(null,k));
+return cljs.core.reduce.call(null,((function (vec__8043,r,s,k,idx){
+return (function (ret,x){
+var found = idx.call(null,clojure.set.rename_keys.call(null,cljs.core.select_keys.call(null,x,cljs.core.keys.call(null,k)),k));
+if(cljs.core.truth_(found)){
+return cljs.core.reduce.call(null,((function (found,vec__8043,r,s,k,idx){
+return (function (p1__8035_SHARP_,p2__8036_SHARP_){
+return cljs.core.conj.call(null,p1__8035_SHARP_,cljs.core.merge.call(null,p2__8036_SHARP_,x));
+});})(found,vec__8043,r,s,k,idx))
+,ret,found);
+} else {
+return ret;
+}
+});})(vec__8043,r,s,k,idx))
+,cljs.core.PersistentHashSet.EMPTY,s);
+});
+
+clojure.set.join.cljs$lang$maxFixedArity = 3;
+
+/**
+ * Is set1 a subset of set2?
+ */
+clojure.set.subset_QMARK_ = (function clojure$set$subset_QMARK_(set1,set2){
+return ((cljs.core.count.call(null,set1) <= cljs.core.count.call(null,set2))) && (cljs.core.every_QMARK_.call(null,(function (p1__8050_SHARP_){
+return cljs.core.contains_QMARK_.call(null,set2,p1__8050_SHARP_);
+}),set1));
+});
+/**
+ * Is set1 a superset of set2?
+ */
+clojure.set.superset_QMARK_ = (function clojure$set$superset_QMARK_(set1,set2){
+return ((cljs.core.count.call(null,set1) >= cljs.core.count.call(null,set2))) && (cljs.core.every_QMARK_.call(null,(function (p1__8051_SHARP_){
+return cljs.core.contains_QMARK_.call(null,set1,p1__8051_SHARP_);
+}),set2));
+});
+
+//# sourceMappingURL=set.js.map

viz/out/clojure/string.cljs

@@ -0,0 +1,258 @@
+;   Copyright (c) Rich Hickey. All rights reserved.
+;   The use and distribution terms for this software are covered by the
+;   Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
+;   which can be found in the file epl-v10.html at the root of this distribution.
+;   By using this software in any fashion, you are agreeing to be bound by
+;   the terms of this license.
+;   You must not remove this notice, or any other, from this software.
+
+(ns clojure.string
+  (:refer-clojure :exclude [replace reverse])
+  (:require [goog.string :as gstring])
+  (:import [goog.string StringBuffer]))
+
+(defn- seq-reverse
+  [coll]
+  (reduce conj () coll))
+
+(def ^:private re-surrogate-pair
+  (js/RegExp. "([\\uD800-\\uDBFF])([\\uDC00-\\uDFFF])" "g"))
+
+(defn reverse
+  "Returns s with its characters reversed."
+  [s]
+  (-> (.replace s re-surrogate-pair "$2$1")
+      (.. (split "") (reverse) (join ""))))
+
+(defn- replace-all
+  [s re replacement]
+  (.replace s (js/RegExp. (.-source re) "g") replacement))
+
+(defn- replace-with
+  [f]
+  (fn [& args]
+    (let [matches (drop-last 2 args)]
+      (if (= (count matches) 1)
+        (f (first matches))
+        (f (vec matches))))))
+
+(defn replace
+  "Replaces all instance of match with replacement in s.
+   match/replacement can be:
+
+   string / string
+   pattern / (string or function of match)."
+  [s match replacement]
+  (cond
+    (string? match)
+    (.replace s (js/RegExp. (gstring/regExpEscape match) "g") replacement)
+
+    (instance? js/RegExp match)
+    (if (string? replacement)
+      (replace-all s match replacement)
+      (replace-all s match (replace-with replacement)))
+
+    :else (throw (str "Invalid match arg: " match))))
+
+(defn replace-first
+  "Replaces the first instance of match with replacement in s.
+   match/replacement can be:
+
+   string / string
+   pattern / (string or function of match)."
+  [s match replacement]
+  (.replace s match replacement))
+
+(defn join
+  "Returns a string of all elements in coll, as returned by (seq coll),
+  separated by an optional separator."
+  ([coll]
+   (loop [sb (StringBuffer.) coll (seq coll)]
+     (if-not (nil? coll)
+       (recur (. sb (append (str (first coll)))) (next coll))
+       (.toString sb))))
+  ([separator coll]
+   (loop [sb (StringBuffer.) coll (seq coll)]
+     (if-not (nil? coll)
+       (do
+         (. sb (append (str (first coll))))
+         (let [coll (next coll)]
+           (when-not (nil? coll)
+             (. sb (append separator)))
+           (recur sb coll)))
+       (.toString sb)))))
+
+(defn upper-case
+  "Converts string to all upper-case."
+  [s]
+  (.toUpperCase s))
+
+(defn lower-case
+  "Converts string to all lower-case."
+  [s]
+  (.toLowerCase s))
+
+(defn capitalize
+  "Converts first character of the string to upper-case, all other
+  characters to lower-case."
+  [s]
+  (if (< (count s) 2)
+    (upper-case s)
+    (str (upper-case (subs s 0 1))
+         (lower-case (subs s 1)))))
+
+;; The JavaScript split function takes a limit argument but the return
+;; value is not the same as the Java split function.
+;;
+;; Java: (.split "a-b-c" #"-" 2) => ["a" "b-c"]
+;; JavaScript: (.split "a-b-c" #"-" 2) => ["a" "b"]
+;;
+;; For consistency, the three arg version has been implemented to
+;; mimic Java's behavior.
+
+(defn- pop-last-while-empty
+  [v]
+  (loop [v v]
+    (if (identical? "" (peek v))
+      (recur (pop v))
+      v)))
+
+(defn- discard-trailing-if-needed
+  [limit v]
+  (if (and (== 0 limit) (< 1 (count v)))
+    (pop-last-while-empty v)
+    v))
+
+(defn- split-with-empty-regex
+  [s limit]
+  (if (or (<= limit 0) (>= limit (+ 2 (count s))))
+    (conj (vec (cons "" (map str (seq s)))) "")
+    (condp == limit
+      1 (vector s)
+      2 (vector "" s)
+      (let [c (- limit 2)]
+        (conj (vec (cons "" (subvec (vec (map str (seq s))) 0 c))) (subs s c))))))
+
+(defn split
+  "Splits string on a regular expression. Optional argument limit is
+  the maximum number of splits. Not lazy. Returns vector of the splits."
+  ([s re]
+     (split s re 0))
+    ([s re limit]
+     (discard-trailing-if-needed limit
+       (if (identical? "/(?:)/" (str re))
+         (split-with-empty-regex s limit)
+         (if (< limit 1)
+           (vec (.split (str s) re))
+           (loop [s s
+                  limit limit
+                  parts []]
+             (if (== 1 limit)
+               (conj parts s)
+               (let [m (re-find re s)]
+                 (if-not (nil? m)
+                   (let [index (.indexOf s m)]
+                     (recur (.substring s (+ index (count m)))
+                       (dec limit)
+                       (conj parts (.substring s 0 index))))
+                   (conj parts s))))))))))
+
+(defn split-lines
+  "Splits s on \n or \r\n."
+  [s]
+  (split s #"\n|\r\n"))
+
+(defn trim
+  "Removes whitespace from both ends of string."
+  [s]
+  (gstring/trim s))
+
+(defn triml
+  "Removes whitespace from the left side of string."
+  [s]
+  (gstring/trimLeft s))
+
+(defn trimr
+  "Removes whitespace from the right side of string."
+  [s]
+  (gstring/trimRight s))
+
+(defn trim-newline
+  "Removes all trailing newline \\n or return \\r characters from
+  string.  Similar to Perl's chomp."
+  [s]
+  (loop [index (.-length s)]
+    (if (zero? index)
+      ""
+      (let [ch (get s (dec index))]
+        (if (or (identical? \newline ch)
+                (identical? \return ch))
+          (recur (dec index))
+          (.substring s 0 index))))))
+
+(defn ^boolean blank?
+  "True is s is nil, empty, or contains only whitespace."
+  [s]
+  (gstring/isEmptySafe s))
+
+(defn escape
+  "Return a new string, using cmap to escape each character ch
+   from s as follows:
+
+   If (cmap ch) is nil, append ch to the new string.
+   If (cmap ch) is non-nil, append (str (cmap ch)) instead."
+  [s cmap]
+  (let [buffer (StringBuffer.)
+        length (.-length s)]
+    (loop [index 0]
+      (if (== length index)
+        (. buffer (toString))
+        (let [ch (.charAt s index)
+              replacement (get cmap ch)]
+          (if-not (nil? replacement)
+            (.append buffer (str replacement))
+            (.append buffer ch))
+          (recur (inc index)))))))
+
+(defn index-of
+  "Return index of value (string or char) in s, optionally searching
+  forward from from-index or nil if not found."
+  ([s value]
+   (let [result (.indexOf s value)]
+     (if (neg? result)
+       nil
+       result)))
+  ([s value from-index]
+   (let [result (.indexOf s value from-index)]
+     (if (neg? result)
+       nil
+       result))))
+
+(defn last-index-of
+  "Return last index of value (string or char) in s, optionally
+  searching backward from from-index or nil if not found."
+  ([s value]
+   (let [result (.lastIndexOf s value)]
+     (if (neg? result)
+       nil
+       result)))
+  ([s value from-index]
+   (let [result (.lastIndexOf s value from-index)]
+     (if (neg? result)
+       nil
+       result))))
+
+(defn ^boolean starts-with?
+  "True if s starts with substr."
+  [s substr]
+  (gstring/startsWith s substr))
+
+(defn ^boolean ends-with?
+  "True if s ends with substr."
+  [s substr]
+  (gstring/endsWith s substr))
+
+(defn ^boolean includes?
+  "True if s includes substr."
+  [s substr]
+  (gstring/contains s substr))

viz/out/clojure/string.js

@@ -0,0 +1,505 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('clojure.string');
+goog.require('cljs.core');
+goog.require('goog.string');
+goog.require('goog.string.StringBuffer');
+clojure.string.seq_reverse = (function clojure$string$seq_reverse(coll){
+return cljs.core.reduce.call(null,cljs.core.conj,cljs.core.List.EMPTY,coll);
+});
+clojure.string.re_surrogate_pair = (new RegExp("([\\uD800-\\uDBFF])([\\uDC00-\\uDFFF])","g"));
+/**
+ * Returns s with its characters reversed.
+ */
+clojure.string.reverse = (function clojure$string$reverse(s){
+return s.replace(clojure.string.re_surrogate_pair,"$2$1").split("").reverse().join("");
+});
+clojure.string.replace_all = (function clojure$string$replace_all(s,re,replacement){
+return s.replace((new RegExp(re.source,"g")),replacement);
+});
+clojure.string.replace_with = (function clojure$string$replace_with(f){
+return (function() { 
+var G__8073__delegate = function (args){
+var matches = cljs.core.drop_last.call(null,(2),args);
+if(cljs.core._EQ_.call(null,cljs.core.count.call(null,matches),(1))){
+return f.call(null,cljs.core.first.call(null,matches));
+} else {
+return f.call(null,cljs.core.vec.call(null,matches));
+}
+};
+var G__8073 = function (var_args){
+var args = null;
+if (arguments.length > 0) {
+var G__8074__i = 0, G__8074__a = new Array(arguments.length -  0);
+while (G__8074__i < G__8074__a.length) {G__8074__a[G__8074__i] = arguments[G__8074__i + 0]; ++G__8074__i;}
+  args = new cljs.core.IndexedSeq(G__8074__a,0);
+} 
+return G__8073__delegate.call(this,args);};
+G__8073.cljs$lang$maxFixedArity = 0;
+G__8073.cljs$lang$applyTo = (function (arglist__8075){
+var args = cljs.core.seq(arglist__8075);
+return G__8073__delegate(args);
+});
+G__8073.cljs$core$IFn$_invoke$arity$variadic = G__8073__delegate;
+return G__8073;
+})()
+;
+});
+/**
+ * Replaces all instance of match with replacement in s.
+ * match/replacement can be:
+ * 
+ * string / string
+ * pattern / (string or function of match).
+ */
+clojure.string.replace = (function clojure$string$replace(s,match,replacement){
+if(typeof match === 'string'){
+return s.replace((new RegExp(goog.string.regExpEscape(match),"g")),replacement);
+} else {
+if((match instanceof RegExp)){
+if(typeof replacement === 'string'){
+return clojure.string.replace_all.call(null,s,match,replacement);
+} else {
+return clojure.string.replace_all.call(null,s,match,clojure.string.replace_with.call(null,replacement));
+}
+} else {
+throw [cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid match arg: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(match)].join('');
+
+}
+}
+});
+/**
+ * Replaces the first instance of match with replacement in s.
+ * match/replacement can be:
+ * 
+ * string / string
+ * pattern / (string or function of match).
+ */
+clojure.string.replace_first = (function clojure$string$replace_first(s,match,replacement){
+return s.replace(match,replacement);
+});
+/**
+ * Returns a string of all elements in coll, as returned by (seq coll),
+ *   separated by an optional separator.
+ */
+clojure.string.join = (function clojure$string$join(var_args){
+var args8076 = [];
+var len__7927__auto___8079 = arguments.length;
+var i__7928__auto___8080 = (0);
+while(true){
+if((i__7928__auto___8080 < len__7927__auto___8079)){
+args8076.push((arguments[i__7928__auto___8080]));
+
+var G__8081 = (i__7928__auto___8080 + (1));
+i__7928__auto___8080 = G__8081;
+continue;
+} else {
+}
+break;
+}
+
+var G__8078 = args8076.length;
+switch (G__8078) {
+case 1:
+return clojure.string.join.cljs$core$IFn$_invoke$arity$1((arguments[(0)]));
+
+break;
+case 2:
+return clojure.string.join.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args8076.length)].join('')));
+
+}
+});
+
+clojure.string.join.cljs$core$IFn$_invoke$arity$1 = (function (coll){
+var sb = (new goog.string.StringBuffer());
+var coll__$1 = cljs.core.seq.call(null,coll);
+while(true){
+if(!((coll__$1 == null))){
+var G__8083 = sb.append([cljs.core.str.cljs$core$IFn$_invoke$arity$1(cljs.core.first.call(null,coll__$1))].join(''));
+var G__8084 = cljs.core.next.call(null,coll__$1);
+sb = G__8083;
+coll__$1 = G__8084;
+continue;
+} else {
+return sb.toString();
+}
+break;
+}
+});
+
+clojure.string.join.cljs$core$IFn$_invoke$arity$2 = (function (separator,coll){
+var sb = (new goog.string.StringBuffer());
+var coll__$1 = cljs.core.seq.call(null,coll);
+while(true){
+if(!((coll__$1 == null))){
+sb.append([cljs.core.str.cljs$core$IFn$_invoke$arity$1(cljs.core.first.call(null,coll__$1))].join(''));
+
+var coll__$2 = cljs.core.next.call(null,coll__$1);
+if((coll__$2 == null)){
+} else {
+sb.append(separator);
+}
+
+var G__8085 = sb;
+var G__8086 = coll__$2;
+sb = G__8085;
+coll__$1 = G__8086;
+continue;
+} else {
+return sb.toString();
+}
+break;
+}
+});
+
+clojure.string.join.cljs$lang$maxFixedArity = 2;
+
+/**
+ * Converts string to all upper-case.
+ */
+clojure.string.upper_case = (function clojure$string$upper_case(s){
+return s.toUpperCase();
+});
+/**
+ * Converts string to all lower-case.
+ */
+clojure.string.lower_case = (function clojure$string$lower_case(s){
+return s.toLowerCase();
+});
+/**
+ * Converts first character of the string to upper-case, all other
+ *   characters to lower-case.
+ */
+clojure.string.capitalize = (function clojure$string$capitalize(s){
+if((cljs.core.count.call(null,s) < (2))){
+return clojure.string.upper_case.call(null,s);
+} else {
+return [cljs.core.str.cljs$core$IFn$_invoke$arity$1(clojure.string.upper_case.call(null,cljs.core.subs.call(null,s,(0),(1)))),cljs.core.str.cljs$core$IFn$_invoke$arity$1(clojure.string.lower_case.call(null,cljs.core.subs.call(null,s,(1))))].join('');
+}
+});
+clojure.string.pop_last_while_empty = (function clojure$string$pop_last_while_empty(v){
+var v__$1 = v;
+while(true){
+if(("" === cljs.core.peek.call(null,v__$1))){
+var G__8087 = cljs.core.pop.call(null,v__$1);
+v__$1 = G__8087;
+continue;
+} else {
+return v__$1;
+}
+break;
+}
+});
+clojure.string.discard_trailing_if_needed = (function clojure$string$discard_trailing_if_needed(limit,v){
+if((((0) === limit)) && (((1) < cljs.core.count.call(null,v)))){
+return clojure.string.pop_last_while_empty.call(null,v);
+} else {
+return v;
+}
+});
+clojure.string.split_with_empty_regex = (function clojure$string$split_with_empty_regex(s,limit){
+if(((limit <= (0))) || ((limit >= ((2) + cljs.core.count.call(null,s))))){
+return cljs.core.conj.call(null,cljs.core.vec.call(null,cljs.core.cons.call(null,"",cljs.core.map.call(null,cljs.core.str,cljs.core.seq.call(null,s)))),"");
+} else {
+var pred__8091 = cljs.core._EQ__EQ_;
+var expr__8092 = limit;
+if(cljs.core.truth_(pred__8091.call(null,(1),expr__8092))){
+return (new cljs.core.PersistentVector(null,1,(5),cljs.core.PersistentVector.EMPTY_NODE,[s],null));
+} else {
+if(cljs.core.truth_(pred__8091.call(null,(2),expr__8092))){
+return (new cljs.core.PersistentVector(null,2,(5),cljs.core.PersistentVector.EMPTY_NODE,["",s],null));
+} else {
+var c = (limit - (2));
+return cljs.core.conj.call(null,cljs.core.vec.call(null,cljs.core.cons.call(null,"",cljs.core.subvec.call(null,cljs.core.vec.call(null,cljs.core.map.call(null,cljs.core.str,cljs.core.seq.call(null,s))),(0),c))),cljs.core.subs.call(null,s,c));
+}
+}
+}
+});
+/**
+ * Splits string on a regular expression. Optional argument limit is
+ *   the maximum number of splits. Not lazy. Returns vector of the splits.
+ */
+clojure.string.split = (function clojure$string$split(var_args){
+var args8094 = [];
+var len__7927__auto___8097 = arguments.length;
+var i__7928__auto___8098 = (0);
+while(true){
+if((i__7928__auto___8098 < len__7927__auto___8097)){
+args8094.push((arguments[i__7928__auto___8098]));
+
+var G__8099 = (i__7928__auto___8098 + (1));
+i__7928__auto___8098 = G__8099;
+continue;
+} else {
+}
+break;
+}
+
+var G__8096 = args8094.length;
+switch (G__8096) {
+case 2:
+return clojure.string.split.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+case 3:
+return clojure.string.split.cljs$core$IFn$_invoke$arity$3((arguments[(0)]),(arguments[(1)]),(arguments[(2)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args8094.length)].join('')));
+
+}
+});
+
+clojure.string.split.cljs$core$IFn$_invoke$arity$2 = (function (s,re){
+return clojure.string.split.call(null,s,re,(0));
+});
+
+clojure.string.split.cljs$core$IFn$_invoke$arity$3 = (function (s,re,limit){
+return clojure.string.discard_trailing_if_needed.call(null,limit,((("/(?:)/" === [cljs.core.str.cljs$core$IFn$_invoke$arity$1(re)].join('')))?clojure.string.split_with_empty_regex.call(null,s,limit):(((limit < (1)))?cljs.core.vec.call(null,[cljs.core.str.cljs$core$IFn$_invoke$arity$1(s)].join('').split(re)):(function (){var s__$1 = s;
+var limit__$1 = limit;
+var parts = cljs.core.PersistentVector.EMPTY;
+while(true){
+if(((1) === limit__$1)){
+return cljs.core.conj.call(null,parts,s__$1);
+} else {
+var m = cljs.core.re_find.call(null,re,s__$1);
+if(!((m == null))){
+var index = s__$1.indexOf(m);
+var G__8101 = s__$1.substring((index + cljs.core.count.call(null,m)));
+var G__8102 = (limit__$1 - (1));
+var G__8103 = cljs.core.conj.call(null,parts,s__$1.substring((0),index));
+s__$1 = G__8101;
+limit__$1 = G__8102;
+parts = G__8103;
+continue;
+} else {
+return cljs.core.conj.call(null,parts,s__$1);
+}
+}
+break;
+}
+})())));
+});
+
+clojure.string.split.cljs$lang$maxFixedArity = 3;
+
+/**
+ * Splits s on 
+ *  or 
+ * .
+ */
+clojure.string.split_lines = (function clojure$string$split_lines(s){
+return clojure.string.split.call(null,s,/\n|\r\n/);
+});
+/**
+ * Removes whitespace from both ends of string.
+ */
+clojure.string.trim = (function clojure$string$trim(s){
+return goog.string.trim(s);
+});
+/**
+ * Removes whitespace from the left side of string.
+ */
+clojure.string.triml = (function clojure$string$triml(s){
+return goog.string.trimLeft(s);
+});
+/**
+ * Removes whitespace from the right side of string.
+ */
+clojure.string.trimr = (function clojure$string$trimr(s){
+return goog.string.trimRight(s);
+});
+/**
+ * Removes all trailing newline \n or return \r characters from
+ *   string.  Similar to Perl's chomp.
+ */
+clojure.string.trim_newline = (function clojure$string$trim_newline(s){
+var index = s.length;
+while(true){
+if((index === (0))){
+return "";
+} else {
+var ch = cljs.core.get.call(null,s,(index - (1)));
+if((("\n" === ch)) || (("\r" === ch))){
+var G__8104 = (index - (1));
+index = G__8104;
+continue;
+} else {
+return s.substring((0),index);
+}
+}
+break;
+}
+});
+/**
+ * True is s is nil, empty, or contains only whitespace.
+ */
+clojure.string.blank_QMARK_ = (function clojure$string$blank_QMARK_(s){
+return goog.string.isEmptySafe(s);
+});
+/**
+ * Return a new string, using cmap to escape each character ch
+ * from s as follows:
+ * 
+ * If (cmap ch) is nil, append ch to the new string.
+ * If (cmap ch) is non-nil, append (str (cmap ch)) instead.
+ */
+clojure.string.escape = (function clojure$string$escape(s,cmap){
+var buffer = (new goog.string.StringBuffer());
+var length = s.length;
+var index = (0);
+while(true){
+if((length === index)){
+return buffer.toString();
+} else {
+var ch = s.charAt(index);
+var replacement = cljs.core.get.call(null,cmap,ch);
+if(!((replacement == null))){
+buffer.append([cljs.core.str.cljs$core$IFn$_invoke$arity$1(replacement)].join(''));
+} else {
+buffer.append(ch);
+}
+
+var G__8105 = (index + (1));
+index = G__8105;
+continue;
+}
+break;
+}
+});
+/**
+ * Return index of value (string or char) in s, optionally searching
+ *   forward from from-index or nil if not found.
+ */
+clojure.string.index_of = (function clojure$string$index_of(var_args){
+var args8106 = [];
+var len__7927__auto___8109 = arguments.length;
+var i__7928__auto___8110 = (0);
+while(true){
+if((i__7928__auto___8110 < len__7927__auto___8109)){
+args8106.push((arguments[i__7928__auto___8110]));
+
+var G__8111 = (i__7928__auto___8110 + (1));
+i__7928__auto___8110 = G__8111;
+continue;
+} else {
+}
+break;
+}
+
+var G__8108 = args8106.length;
+switch (G__8108) {
+case 2:
+return clojure.string.index_of.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+case 3:
+return clojure.string.index_of.cljs$core$IFn$_invoke$arity$3((arguments[(0)]),(arguments[(1)]),(arguments[(2)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args8106.length)].join('')));
+
+}
+});
+
+clojure.string.index_of.cljs$core$IFn$_invoke$arity$2 = (function (s,value){
+var result = s.indexOf(value);
+if((result < (0))){
+return null;
+} else {
+return result;
+}
+});
+
+clojure.string.index_of.cljs$core$IFn$_invoke$arity$3 = (function (s,value,from_index){
+var result = s.indexOf(value,from_index);
+if((result < (0))){
+return null;
+} else {
+return result;
+}
+});
+
+clojure.string.index_of.cljs$lang$maxFixedArity = 3;
+
+/**
+ * Return last index of value (string or char) in s, optionally
+ *   searching backward from from-index or nil if not found.
+ */
+clojure.string.last_index_of = (function clojure$string$last_index_of(var_args){
+var args8113 = [];
+var len__7927__auto___8116 = arguments.length;
+var i__7928__auto___8117 = (0);
+while(true){
+if((i__7928__auto___8117 < len__7927__auto___8116)){
+args8113.push((arguments[i__7928__auto___8117]));
+
+var G__8118 = (i__7928__auto___8117 + (1));
+i__7928__auto___8117 = G__8118;
+continue;
+} else {
+}
+break;
+}
+
+var G__8115 = args8113.length;
+switch (G__8115) {
+case 2:
+return clojure.string.last_index_of.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+case 3:
+return clojure.string.last_index_of.cljs$core$IFn$_invoke$arity$3((arguments[(0)]),(arguments[(1)]),(arguments[(2)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args8113.length)].join('')));
+
+}
+});
+
+clojure.string.last_index_of.cljs$core$IFn$_invoke$arity$2 = (function (s,value){
+var result = s.lastIndexOf(value);
+if((result < (0))){
+return null;
+} else {
+return result;
+}
+});
+
+clojure.string.last_index_of.cljs$core$IFn$_invoke$arity$3 = (function (s,value,from_index){
+var result = s.lastIndexOf(value,from_index);
+if((result < (0))){
+return null;
+} else {
+return result;
+}
+});
+
+clojure.string.last_index_of.cljs$lang$maxFixedArity = 3;
+
+/**
+ * True if s starts with substr.
+ */
+clojure.string.starts_with_QMARK_ = (function clojure$string$starts_with_QMARK_(s,substr){
+return goog.string.startsWith(s,substr);
+});
+/**
+ * True if s ends with substr.
+ */
+clojure.string.ends_with_QMARK_ = (function clojure$string$ends_with_QMARK_(s,substr){
+return goog.string.endsWith(s,substr);
+});
+/**
+ * True if s includes substr.
+ */
+clojure.string.includes_QMARK_ = (function clojure$string$includes_QMARK_(s,substr){
+return goog.string.contains(s,substr);
+});
+
+//# sourceMappingURL=string.js.map

viz/out/goog/asserts/asserts.js

@@ -0,0 +1,369 @@
+// Copyright 2008 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Utilities to check the preconditions, postconditions and
+ * invariants runtime.
+ *
+ * Methods in this package should be given special treatment by the compiler
+ * for type-inference. For example, <code>goog.asserts.assert(foo)</code>
+ * will restrict <code>foo</code> to a truthy value.
+ *
+ * The compiler has an option to disable asserts. So code like:
+ * <code>
+ * var x = goog.asserts.assert(foo()); goog.asserts.assert(bar());
+ * </code>
+ * will be transformed into:
+ * <code>
+ * var x = foo();
+ * </code>
+ * The compiler will leave in foo() (because its return value is used),
+ * but it will remove bar() because it assumes it does not have side-effects.
+ *
+ * @author agrieve@google.com (Andrew Grieve)
+ */
+
+goog.provide('goog.asserts');
+goog.provide('goog.asserts.AssertionError');
+
+goog.require('goog.debug.Error');
+goog.require('goog.dom.NodeType');
+goog.require('goog.string');
+
+
+/**
+ * @define {boolean} Whether to strip out asserts or to leave them in.
+ */
+goog.define('goog.asserts.ENABLE_ASSERTS', goog.DEBUG);
+
+
+
+/**
+ * Error object for failed assertions.
+ * @param {string} messagePattern The pattern that was used to form message.
+ * @param {!Array<*>} messageArgs The items to substitute into the pattern.
+ * @constructor
+ * @extends {goog.debug.Error}
+ * @final
+ */
+goog.asserts.AssertionError = function(messagePattern, messageArgs) {
+  messageArgs.unshift(messagePattern);
+  goog.debug.Error.call(this, goog.string.subs.apply(null, messageArgs));
+  // Remove the messagePattern afterwards to avoid permanently modifying the
+  // passed in array.
+  messageArgs.shift();
+
+  /**
+   * The message pattern used to format the error message. Error handlers can
+   * use this to uniquely identify the assertion.
+   * @type {string}
+   */
+  this.messagePattern = messagePattern;
+};
+goog.inherits(goog.asserts.AssertionError, goog.debug.Error);
+
+
+/** @override */
+goog.asserts.AssertionError.prototype.name = 'AssertionError';
+
+
+/**
+ * The default error handler.
+ * @param {!goog.asserts.AssertionError} e The exception to be handled.
+ */
+goog.asserts.DEFAULT_ERROR_HANDLER = function(e) {
+  throw e;
+};
+
+
+/**
+ * The handler responsible for throwing or logging assertion errors.
+ * @private {function(!goog.asserts.AssertionError)}
+ */
+goog.asserts.errorHandler_ = goog.asserts.DEFAULT_ERROR_HANDLER;
+
+
+/**
+ * Throws an exception with the given message and "Assertion failed" prefixed
+ * onto it.
+ * @param {string} defaultMessage The message to use if givenMessage is empty.
+ * @param {Array<*>} defaultArgs The substitution arguments for defaultMessage.
+ * @param {string|undefined} givenMessage Message supplied by the caller.
+ * @param {Array<*>} givenArgs The substitution arguments for givenMessage.
+ * @throws {goog.asserts.AssertionError} When the value is not a number.
+ * @private
+ */
+goog.asserts.doAssertFailure_ = function(
+    defaultMessage, defaultArgs, givenMessage, givenArgs) {
+  var message = 'Assertion failed';
+  if (givenMessage) {
+    message += ': ' + givenMessage;
+    var args = givenArgs;
+  } else if (defaultMessage) {
+    message += ': ' + defaultMessage;
+    args = defaultArgs;
+  }
+  // The '' + works around an Opera 10 bug in the unit tests. Without it,
+  // a stack trace is added to var message above. With this, a stack trace is
+  // not added until this line (it causes the extra garbage to be added after
+  // the assertion message instead of in the middle of it).
+  var e = new goog.asserts.AssertionError('' + message, args || []);
+  goog.asserts.errorHandler_(e);
+};
+
+
+/**
+ * Sets a custom error handler that can be used to customize the behavior of
+ * assertion failures, for example by turning all assertion failures into log
+ * messages.
+ * @param {function(!goog.asserts.AssertionError)} errorHandler
+ */
+goog.asserts.setErrorHandler = function(errorHandler) {
+  if (goog.asserts.ENABLE_ASSERTS) {
+    goog.asserts.errorHandler_ = errorHandler;
+  }
+};
+
+
+/**
+ * Checks if the condition evaluates to true if goog.asserts.ENABLE_ASSERTS is
+ * true.
+ * @template T
+ * @param {T} condition The condition to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {T} The value of the condition.
+ * @throws {goog.asserts.AssertionError} When the condition evaluates to false.
+ */
+goog.asserts.assert = function(condition, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !condition) {
+    goog.asserts.doAssertFailure_(
+        '', null, opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return condition;
+};
+
+
+/**
+ * Fails if goog.asserts.ENABLE_ASSERTS is true. This function is useful in case
+ * when we want to add a check in the unreachable area like switch-case
+ * statement:
+ *
+ * <pre>
+ *  switch(type) {
+ *    case FOO: doSomething(); break;
+ *    case BAR: doSomethingElse(); break;
+ *    default: goog.asserts.fail('Unrecognized type: ' + type);
+ *      // We have only 2 types - "default:" section is unreachable code.
+ *  }
+ * </pre>
+ *
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @throws {goog.asserts.AssertionError} Failure.
+ */
+goog.asserts.fail = function(opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS) {
+    goog.asserts.errorHandler_(
+        new goog.asserts.AssertionError(
+            'Failure' + (opt_message ? ': ' + opt_message : ''),
+            Array.prototype.slice.call(arguments, 1)));
+  }
+};
+
+
+/**
+ * Checks if the value is a number if goog.asserts.ENABLE_ASSERTS is true.
+ * @param {*} value The value to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {number} The value, guaranteed to be a number when asserts enabled.
+ * @throws {goog.asserts.AssertionError} When the value is not a number.
+ */
+goog.asserts.assertNumber = function(value, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !goog.isNumber(value)) {
+    goog.asserts.doAssertFailure_(
+        'Expected number but got %s: %s.', [goog.typeOf(value), value],
+        opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return /** @type {number} */ (value);
+};
+
+
+/**
+ * Checks if the value is a string if goog.asserts.ENABLE_ASSERTS is true.
+ * @param {*} value The value to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {string} The value, guaranteed to be a string when asserts enabled.
+ * @throws {goog.asserts.AssertionError} When the value is not a string.
+ */
+goog.asserts.assertString = function(value, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !goog.isString(value)) {
+    goog.asserts.doAssertFailure_(
+        'Expected string but got %s: %s.', [goog.typeOf(value), value],
+        opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return /** @type {string} */ (value);
+};
+
+
+/**
+ * Checks if the value is a function if goog.asserts.ENABLE_ASSERTS is true.
+ * @param {*} value The value to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {!Function} The value, guaranteed to be a function when asserts
+ *     enabled.
+ * @throws {goog.asserts.AssertionError} When the value is not a function.
+ */
+goog.asserts.assertFunction = function(value, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !goog.isFunction(value)) {
+    goog.asserts.doAssertFailure_(
+        'Expected function but got %s: %s.', [goog.typeOf(value), value],
+        opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return /** @type {!Function} */ (value);
+};
+
+
+/**
+ * Checks if the value is an Object if goog.asserts.ENABLE_ASSERTS is true.
+ * @param {*} value The value to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {!Object} The value, guaranteed to be a non-null object.
+ * @throws {goog.asserts.AssertionError} When the value is not an object.
+ */
+goog.asserts.assertObject = function(value, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !goog.isObject(value)) {
+    goog.asserts.doAssertFailure_(
+        'Expected object but got %s: %s.', [goog.typeOf(value), value],
+        opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return /** @type {!Object} */ (value);
+};
+
+
+/**
+ * Checks if the value is an Array if goog.asserts.ENABLE_ASSERTS is true.
+ * @param {*} value The value to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {!Array<?>} The value, guaranteed to be a non-null array.
+ * @throws {goog.asserts.AssertionError} When the value is not an array.
+ */
+goog.asserts.assertArray = function(value, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !goog.isArray(value)) {
+    goog.asserts.doAssertFailure_(
+        'Expected array but got %s: %s.', [goog.typeOf(value), value],
+        opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return /** @type {!Array<?>} */ (value);
+};
+
+
+/**
+ * Checks if the value is a boolean if goog.asserts.ENABLE_ASSERTS is true.
+ * @param {*} value The value to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {boolean} The value, guaranteed to be a boolean when asserts are
+ *     enabled.
+ * @throws {goog.asserts.AssertionError} When the value is not a boolean.
+ */
+goog.asserts.assertBoolean = function(value, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !goog.isBoolean(value)) {
+    goog.asserts.doAssertFailure_(
+        'Expected boolean but got %s: %s.', [goog.typeOf(value), value],
+        opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return /** @type {boolean} */ (value);
+};
+
+
+/**
+ * Checks if the value is a DOM Element if goog.asserts.ENABLE_ASSERTS is true.
+ * @param {*} value The value to check.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @return {!Element} The value, likely to be a DOM Element when asserts are
+ *     enabled.
+ * @throws {goog.asserts.AssertionError} When the value is not an Element.
+ */
+goog.asserts.assertElement = function(value, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS &&
+      (!goog.isObject(value) || value.nodeType != goog.dom.NodeType.ELEMENT)) {
+    goog.asserts.doAssertFailure_(
+        'Expected Element but got %s: %s.', [goog.typeOf(value), value],
+        opt_message, Array.prototype.slice.call(arguments, 2));
+  }
+  return /** @type {!Element} */ (value);
+};
+
+
+/**
+ * Checks if the value is an instance of the user-defined type if
+ * goog.asserts.ENABLE_ASSERTS is true.
+ *
+ * The compiler may tighten the type returned by this function.
+ *
+ * @param {?} value The value to check.
+ * @param {function(new: T, ...)} type A user-defined constructor.
+ * @param {string=} opt_message Error message in case of failure.
+ * @param {...*} var_args The items to substitute into the failure message.
+ * @throws {goog.asserts.AssertionError} When the value is not an instance of
+ *     type.
+ * @return {T}
+ * @template T
+ */
+goog.asserts.assertInstanceof = function(value, type, opt_message, var_args) {
+  if (goog.asserts.ENABLE_ASSERTS && !(value instanceof type)) {
+    goog.asserts.doAssertFailure_(
+        'Expected instanceof %s but got %s.',
+        [goog.asserts.getType_(type), goog.asserts.getType_(value)],
+        opt_message, Array.prototype.slice.call(arguments, 3));
+  }
+  return value;
+};
+
+
+/**
+ * Checks that no enumerable keys are present in Object.prototype. Such keys
+ * would break most code that use {@code for (var ... in ...)} loops.
+ */
+goog.asserts.assertObjectPrototypeIsIntact = function() {
+  for (var key in Object.prototype) {
+    goog.asserts.fail(key + ' should not be enumerable in Object.prototype.');
+  }
+};
+
+
+/**
+ * Returns the type of a value. If a constructor is passed, and a suitable
+ * string cannot be found, 'unknown type name' will be returned.
+ * @param {*} value A constructor, object, or primitive.
+ * @return {string} The best display name for the value, or 'unknown type name'.
+ * @private
+ */
+goog.asserts.getType_ = function(value) {
+  if (value instanceof Function) {
+    return value.displayName || value.name || 'unknown type name';
+  } else if (value instanceof Object) {
+    return value.constructor.displayName || value.constructor.name ||
+        Object.prototype.toString.call(value);
+  } else {
+    return value === null ? 'null' : typeof value;
+  }
+};

viz/out/goog/debug/entrypointregistry.js

@@ -0,0 +1,159 @@
+// Copyright 2010 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview A global registry for entry points into a program,
+ * so that they can be instrumented. Each module should register their
+ * entry points with this registry. Designed to be compiled out
+ * if no instrumentation is requested.
+ *
+ * Entry points may be registered before or after a call to
+ * goog.debug.entryPointRegistry.monitorAll. If an entry point is registered
+ * later, the existing monitor will instrument the new entry point.
+ *
+ * @author nicksantos@google.com (Nick Santos)
+ */
+
+goog.provide('goog.debug.EntryPointMonitor');
+goog.provide('goog.debug.entryPointRegistry');
+
+goog.require('goog.asserts');
+
+
+
+/**
+ * @interface
+ */
+goog.debug.EntryPointMonitor = function() {};
+
+
+/**
+ * Instruments a function.
+ *
+ * @param {!Function} fn A function to instrument.
+ * @return {!Function} The instrumented function.
+ */
+goog.debug.EntryPointMonitor.prototype.wrap;
+
+
+/**
+ * Try to remove an instrumentation wrapper created by this monitor.
+ * If the function passed to unwrap is not a wrapper created by this
+ * monitor, then we will do nothing.
+ *
+ * Notice that some wrappers may not be unwrappable. For example, if other
+ * monitors have applied their own wrappers, then it will be impossible to
+ * unwrap them because their wrappers will have captured our wrapper.
+ *
+ * So it is important that entry points are unwrapped in the reverse
+ * order that they were wrapped.
+ *
+ * @param {!Function} fn A function to unwrap.
+ * @return {!Function} The unwrapped function, or {@code fn} if it was not
+ *     a wrapped function created by this monitor.
+ */
+goog.debug.EntryPointMonitor.prototype.unwrap;
+
+
+/**
+ * An array of entry point callbacks.
+ * @type {!Array<function(!Function)>}
+ * @private
+ */
+goog.debug.entryPointRegistry.refList_ = [];
+
+
+/**
+ * Monitors that should wrap all the entry points.
+ * @type {!Array<!goog.debug.EntryPointMonitor>}
+ * @private
+ */
+goog.debug.entryPointRegistry.monitors_ = [];
+
+
+/**
+ * Whether goog.debug.entryPointRegistry.monitorAll has ever been called.
+ * Checking this allows the compiler to optimize out the registrations.
+ * @type {boolean}
+ * @private
+ */
+goog.debug.entryPointRegistry.monitorsMayExist_ = false;
+
+
+/**
+ * Register an entry point with this module.
+ *
+ * The entry point will be instrumented when a monitor is passed to
+ * goog.debug.entryPointRegistry.monitorAll. If this has already occurred, the
+ * entry point is instrumented immediately.
+ *
+ * @param {function(!Function)} callback A callback function which is called
+ *     with a transforming function to instrument the entry point. The callback
+ *     is responsible for wrapping the relevant entry point with the
+ *     transforming function.
+ */
+goog.debug.entryPointRegistry.register = function(callback) {
+  // Don't use push(), so that this can be compiled out.
+  goog.debug.entryPointRegistry
+      .refList_[goog.debug.entryPointRegistry.refList_.length] = callback;
+  // If no one calls monitorAll, this can be compiled out.
+  if (goog.debug.entryPointRegistry.monitorsMayExist_) {
+    var monitors = goog.debug.entryPointRegistry.monitors_;
+    for (var i = 0; i < monitors.length; i++) {
+      callback(goog.bind(monitors[i].wrap, monitors[i]));
+    }
+  }
+};
+
+
+/**
+ * Configures a monitor to wrap all entry points.
+ *
+ * Entry points that have already been registered are immediately wrapped by
+ * the monitor. When an entry point is registered in the future, it will also
+ * be wrapped by the monitor when it is registered.
+ *
+ * @param {!goog.debug.EntryPointMonitor} monitor An entry point monitor.
+ */
+goog.debug.entryPointRegistry.monitorAll = function(monitor) {
+  goog.debug.entryPointRegistry.monitorsMayExist_ = true;
+  var transformer = goog.bind(monitor.wrap, monitor);
+  for (var i = 0; i < goog.debug.entryPointRegistry.refList_.length; i++) {
+    goog.debug.entryPointRegistry.refList_[i](transformer);
+  }
+  goog.debug.entryPointRegistry.monitors_.push(monitor);
+};
+
+
+/**
+ * Try to unmonitor all the entry points that have already been registered. If
+ * an entry point is registered in the future, it will not be wrapped by the
+ * monitor when it is registered. Note that this may fail if the entry points
+ * have additional wrapping.
+ *
+ * @param {!goog.debug.EntryPointMonitor} monitor The last monitor to wrap
+ *     the entry points.
+ * @throws {Error} If the monitor is not the most recently configured monitor.
+ */
+goog.debug.entryPointRegistry.unmonitorAllIfPossible = function(monitor) {
+  var monitors = goog.debug.entryPointRegistry.monitors_;
+  goog.asserts.assert(
+      monitor == monitors[monitors.length - 1],
+      'Only the most recent monitor can be unwrapped.');
+  var transformer = goog.bind(monitor.unwrap, monitor);
+  for (var i = 0; i < goog.debug.entryPointRegistry.refList_.length; i++) {
+    goog.debug.entryPointRegistry.refList_[i](transformer);
+  }
+  monitors.length--;
+};

viz/out/goog/debug/error.js

@@ -0,0 +1,63 @@
+// Copyright 2009 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Provides a base class for custom Error objects such that the
+ * stack is correctly maintained.
+ *
+ * You should never need to throw goog.debug.Error(msg) directly, Error(msg) is
+ * sufficient.
+ *
+ */
+
+goog.provide('goog.debug.Error');
+
+
+
+/**
+ * Base class for custom error objects.
+ * @param {*=} opt_msg The message associated with the error.
+ * @constructor
+ * @extends {Error}
+ */
+goog.debug.Error = function(opt_msg) {
+
+  // Attempt to ensure there is a stack trace.
+  if (Error.captureStackTrace) {
+    Error.captureStackTrace(this, goog.debug.Error);
+  } else {
+    var stack = new Error().stack;
+    if (stack) {
+      this.stack = stack;
+    }
+  }
+
+  if (opt_msg) {
+    this.message = String(opt_msg);
+  }
+
+  /**
+   * Whether to report this error to the server. Setting this to false will
+   * cause the error reporter to not report the error back to the server,
+   * which can be useful if the client knows that the error has already been
+   * logged on the server.
+   * @type {boolean}
+   */
+  this.reportErrorToServer = true;
+};
+goog.inherits(goog.debug.Error, Error);
+
+
+/** @override */
+goog.debug.Error.prototype.name = 'CustomError';

viz/out/goog/disposable/disposable.js

@@ -0,0 +1,308 @@
+// Copyright 2005 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Implements the disposable interface. The dispose method is used
+ * to clean up references and resources.
+ * @author arv@google.com (Erik Arvidsson)
+ */
+
+
+goog.provide('goog.Disposable');
+/** @suppress {extraProvide} */
+goog.provide('goog.dispose');
+/** @suppress {extraProvide} */
+goog.provide('goog.disposeAll');
+
+goog.require('goog.disposable.IDisposable');
+
+
+
+/**
+ * Class that provides the basic implementation for disposable objects. If your
+ * class holds one or more references to COM objects, DOM nodes, or other
+ * disposable objects, it should extend this class or implement the disposable
+ * interface (defined in goog.disposable.IDisposable).
+ * @constructor
+ * @implements {goog.disposable.IDisposable}
+ */
+goog.Disposable = function() {
+  if (goog.Disposable.MONITORING_MODE != goog.Disposable.MonitoringMode.OFF) {
+    if (goog.Disposable.INCLUDE_STACK_ON_CREATION) {
+      this.creationStack = new Error().stack;
+    }
+    goog.Disposable.instances_[goog.getUid(this)] = this;
+  }
+  // Support sealing
+  this.disposed_ = this.disposed_;
+  this.onDisposeCallbacks_ = this.onDisposeCallbacks_;
+};
+
+
+/**
+ * @enum {number} Different monitoring modes for Disposable.
+ */
+goog.Disposable.MonitoringMode = {
+  /**
+   * No monitoring.
+   */
+  OFF: 0,
+  /**
+   * Creating and disposing the goog.Disposable instances is monitored. All
+   * disposable objects need to call the {@code goog.Disposable} base
+   * constructor. The PERMANENT mode must be switched on before creating any
+   * goog.Disposable instances.
+   */
+  PERMANENT: 1,
+  /**
+   * INTERACTIVE mode can be switched on and off on the fly without producing
+   * errors. It also doesn't warn if the disposable objects don't call the
+   * {@code goog.Disposable} base constructor.
+   */
+  INTERACTIVE: 2
+};
+
+
+/**
+ * @define {number} The monitoring mode of the goog.Disposable
+ *     instances. Default is OFF. Switching on the monitoring is only
+ *     recommended for debugging because it has a significant impact on
+ *     performance and memory usage. If switched off, the monitoring code
+ *     compiles down to 0 bytes.
+ */
+goog.define('goog.Disposable.MONITORING_MODE', 0);
+
+
+/**
+ * @define {boolean} Whether to attach creation stack to each created disposable
+ *     instance; This is only relevant for when MonitoringMode != OFF.
+ */
+goog.define('goog.Disposable.INCLUDE_STACK_ON_CREATION', true);
+
+
+/**
+ * Maps the unique ID of every undisposed {@code goog.Disposable} object to
+ * the object itself.
+ * @type {!Object<number, !goog.Disposable>}
+ * @private
+ */
+goog.Disposable.instances_ = {};
+
+
+/**
+ * @return {!Array<!goog.Disposable>} All {@code goog.Disposable} objects that
+ *     haven't been disposed of.
+ */
+goog.Disposable.getUndisposedObjects = function() {
+  var ret = [];
+  for (var id in goog.Disposable.instances_) {
+    if (goog.Disposable.instances_.hasOwnProperty(id)) {
+      ret.push(goog.Disposable.instances_[Number(id)]);
+    }
+  }
+  return ret;
+};
+
+
+/**
+ * Clears the registry of undisposed objects but doesn't dispose of them.
+ */
+goog.Disposable.clearUndisposedObjects = function() {
+  goog.Disposable.instances_ = {};
+};
+
+
+/**
+ * Whether the object has been disposed of.
+ * @type {boolean}
+ * @private
+ */
+goog.Disposable.prototype.disposed_ = false;
+
+
+/**
+ * Callbacks to invoke when this object is disposed.
+ * @type {Array<!Function>}
+ * @private
+ */
+goog.Disposable.prototype.onDisposeCallbacks_;
+
+
+/**
+ * If monitoring the goog.Disposable instances is enabled, stores the creation
+ * stack trace of the Disposable instance.
+ * @const {string}
+ */
+goog.Disposable.prototype.creationStack;
+
+
+/**
+ * @return {boolean} Whether the object has been disposed of.
+ * @override
+ */
+goog.Disposable.prototype.isDisposed = function() {
+  return this.disposed_;
+};
+
+
+/**
+ * @return {boolean} Whether the object has been disposed of.
+ * @deprecated Use {@link #isDisposed} instead.
+ */
+goog.Disposable.prototype.getDisposed = goog.Disposable.prototype.isDisposed;
+
+
+/**
+ * Disposes of the object. If the object hasn't already been disposed of, calls
+ * {@link #disposeInternal}. Classes that extend {@code goog.Disposable} should
+ * override {@link #disposeInternal} in order to delete references to COM
+ * objects, DOM nodes, and other disposable objects. Reentrant.
+ *
+ * @return {void} Nothing.
+ * @override
+ */
+goog.Disposable.prototype.dispose = function() {
+  if (!this.disposed_) {
+    // Set disposed_ to true first, in case during the chain of disposal this
+    // gets disposed recursively.
+    this.disposed_ = true;
+    this.disposeInternal();
+    if (goog.Disposable.MONITORING_MODE != goog.Disposable.MonitoringMode.OFF) {
+      var uid = goog.getUid(this);
+      if (goog.Disposable.MONITORING_MODE ==
+              goog.Disposable.MonitoringMode.PERMANENT &&
+          !goog.Disposable.instances_.hasOwnProperty(uid)) {
+        throw Error(
+            this + ' did not call the goog.Disposable base ' +
+            'constructor or was disposed of after a clearUndisposedObjects ' +
+            'call');
+      }
+      delete goog.Disposable.instances_[uid];
+    }
+  }
+};
+
+
+/**
+ * Associates a disposable object with this object so that they will be disposed
+ * together.
+ * @param {goog.disposable.IDisposable} disposable that will be disposed when
+ *     this object is disposed.
+ */
+goog.Disposable.prototype.registerDisposable = function(disposable) {
+  this.addOnDisposeCallback(goog.partial(goog.dispose, disposable));
+};
+
+
+/**
+ * Invokes a callback function when this object is disposed. Callbacks are
+ * invoked in the order in which they were added. If a callback is added to
+ * an already disposed Disposable, it will be called immediately.
+ * @param {function(this:T):?} callback The callback function.
+ * @param {T=} opt_scope An optional scope to call the callback in.
+ * @template T
+ */
+goog.Disposable.prototype.addOnDisposeCallback = function(callback, opt_scope) {
+  if (this.disposed_) {
+    callback.call(opt_scope);
+    return;
+  }
+  if (!this.onDisposeCallbacks_) {
+    this.onDisposeCallbacks_ = [];
+  }
+
+  this.onDisposeCallbacks_.push(
+      goog.isDef(opt_scope) ? goog.bind(callback, opt_scope) : callback);
+};
+
+
+/**
+ * Deletes or nulls out any references to COM objects, DOM nodes, or other
+ * disposable objects. Classes that extend {@code goog.Disposable} should
+ * override this method.
+ * Not reentrant. To avoid calling it twice, it must only be called from the
+ * subclass' {@code disposeInternal} method. Everywhere else the public
+ * {@code dispose} method must be used.
+ * For example:
+ * <pre>
+ *   mypackage.MyClass = function() {
+ *     mypackage.MyClass.base(this, 'constructor');
+ *     // Constructor logic specific to MyClass.
+ *     ...
+ *   };
+ *   goog.inherits(mypackage.MyClass, goog.Disposable);
+ *
+ *   mypackage.MyClass.prototype.disposeInternal = function() {
+ *     // Dispose logic specific to MyClass.
+ *     ...
+ *     // Call superclass's disposeInternal at the end of the subclass's, like
+ *     // in C++, to avoid hard-to-catch issues.
+ *     mypackage.MyClass.base(this, 'disposeInternal');
+ *   };
+ * </pre>
+ * @protected
+ */
+goog.Disposable.prototype.disposeInternal = function() {
+  if (this.onDisposeCallbacks_) {
+    while (this.onDisposeCallbacks_.length) {
+      this.onDisposeCallbacks_.shift()();
+    }
+  }
+};
+
+
+/**
+ * Returns True if we can verify the object is disposed.
+ * Calls {@code isDisposed} on the argument if it supports it.  If obj
+ * is not an object with an isDisposed() method, return false.
+ * @param {*} obj The object to investigate.
+ * @return {boolean} True if we can verify the object is disposed.
+ */
+goog.Disposable.isDisposed = function(obj) {
+  if (obj && typeof obj.isDisposed == 'function') {
+    return obj.isDisposed();
+  }
+  return false;
+};
+
+
+/**
+ * Calls {@code dispose} on the argument if it supports it. If obj is not an
+ *     object with a dispose() method, this is a no-op.
+ * @param {*} obj The object to dispose of.
+ */
+goog.dispose = function(obj) {
+  if (obj && typeof obj.dispose == 'function') {
+    obj.dispose();
+  }
+};
+
+
+/**
+ * Calls {@code dispose} on each member of the list that supports it. (If the
+ * member is an ArrayLike, then {@code goog.disposeAll()} will be called
+ * recursively on each of its members.) If the member is not an object with a
+ * {@code dispose()} method, then it is ignored.
+ * @param {...*} var_args The list.
+ */
+goog.disposeAll = function(var_args) {
+  for (var i = 0, len = arguments.length; i < len; ++i) {
+    var disposable = arguments[i];
+    if (goog.isArrayLike(disposable)) {
+      goog.disposeAll.apply(null, disposable);
+    } else {
+      goog.dispose(disposable);
+    }
+  }
+};

viz/out/goog/disposable/idisposable.js

@@ -0,0 +1,45 @@
+// Copyright 2011 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Definition of the disposable interface.  A disposable object
+ * has a dispose method to to clean up references and resources.
+ * @author nnaze@google.com (Nathan Naze)
+ */
+
+
+goog.provide('goog.disposable.IDisposable');
+
+
+
+/**
+ * Interface for a disposable object.  If a instance requires cleanup
+ * (references COM objects, DOM notes, or other disposable objects), it should
+ * implement this interface (it may subclass goog.Disposable).
+ * @interface
+ */
+goog.disposable.IDisposable = function() {};
+
+
+/**
+ * Disposes of the object and its resources.
+ * @return {void} Nothing.
+ */
+goog.disposable.IDisposable.prototype.dispose = goog.abstractMethod;
+
+
+/**
+ * @return {boolean} Whether the object has been disposed of.
+ */
+goog.disposable.IDisposable.prototype.isDisposed = goog.abstractMethod;

viz/out/goog/dom/browserfeature.js

@@ -0,0 +1,73 @@
+// Copyright 2010 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Browser capability checks for the dom package.
+ *
+ */
+
+
+goog.provide('goog.dom.BrowserFeature');
+
+goog.require('goog.userAgent');
+
+
+/**
+ * Enum of browser capabilities.
+ * @enum {boolean}
+ */
+goog.dom.BrowserFeature = {
+  /**
+   * Whether attributes 'name' and 'type' can be added to an element after it's
+   * created. False in Internet Explorer prior to version 9.
+   */
+  CAN_ADD_NAME_OR_TYPE_ATTRIBUTES:
+      !goog.userAgent.IE || goog.userAgent.isDocumentModeOrHigher(9),
+
+  /**
+   * Whether we can use element.children to access an element's Element
+   * children. Available since Gecko 1.9.1, IE 9. (IE<9 also includes comment
+   * nodes in the collection.)
+   */
+  CAN_USE_CHILDREN_ATTRIBUTE: !goog.userAgent.GECKO && !goog.userAgent.IE ||
+      goog.userAgent.IE && goog.userAgent.isDocumentModeOrHigher(9) ||
+      goog.userAgent.GECKO && goog.userAgent.isVersionOrHigher('1.9.1'),
+
+  /**
+   * Opera, Safari 3, and Internet Explorer 9 all support innerText but they
+   * include text nodes in script and style tags. Not document-mode-dependent.
+   */
+  CAN_USE_INNER_TEXT:
+      (goog.userAgent.IE && !goog.userAgent.isVersionOrHigher('9')),
+
+  /**
+   * MSIE, Opera, and Safari>=4 support element.parentElement to access an
+   * element's parent if it is an Element.
+   */
+  CAN_USE_PARENT_ELEMENT_PROPERTY:
+      goog.userAgent.IE || goog.userAgent.OPERA || goog.userAgent.WEBKIT,
+
+  /**
+   * Whether NoScope elements need a scoped element written before them in
+   * innerHTML.
+   * MSDN: http://msdn.microsoft.com/en-us/library/ms533897(VS.85).aspx#1
+   */
+  INNER_HTML_NEEDS_SCOPED_ELEMENT: goog.userAgent.IE,
+
+  /**
+   * Whether we use legacy IE range API.
+   */
+  LEGACY_IE_RANGES:
+      goog.userAgent.IE && !goog.userAgent.isDocumentModeOrHigher(9)
+};

viz/out/goog/dom/nodetype.js

@@ -0,0 +1,48 @@
+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Definition of goog.dom.NodeType.
+ */
+
+goog.provide('goog.dom.NodeType');
+
+
+/**
+ * Constants for the nodeType attribute in the Node interface.
+ *
+ * These constants match those specified in the Node interface. These are
+ * usually present on the Node object in recent browsers, but not in older
+ * browsers (specifically, early IEs) and thus are given here.
+ *
+ * In some browsers (early IEs), these are not defined on the Node object,
+ * so they are provided here.
+ *
+ * See http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-1950641247
+ * @enum {number}
+ */
+goog.dom.NodeType = {
+  ELEMENT: 1,
+  ATTRIBUTE: 2,
+  TEXT: 3,
+  CDATA_SECTION: 4,
+  ENTITY_REFERENCE: 5,
+  ENTITY: 6,
+  PROCESSING_INSTRUCTION: 7,
+  COMMENT: 8,
+  DOCUMENT: 9,
+  DOCUMENT_TYPE: 10,
+  DOCUMENT_FRAGMENT: 11,
+  NOTATION: 12
+};

viz/out/goog/dom/safe.js

@@ -0,0 +1,372 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Type-safe wrappers for unsafe DOM APIs.
+ *
+ * This file provides type-safe wrappers for DOM APIs that can result in
+ * cross-site scripting (XSS) vulnerabilities, if the API is supplied with
+ * untrusted (attacker-controlled) input.  Instead of plain strings, the type
+ * safe wrappers consume values of types from the goog.html package whose
+ * contract promises that values are safe to use in the corresponding context.
+ *
+ * Hence, a program that exclusively uses the wrappers in this file (i.e., whose
+ * only reference to security-sensitive raw DOM APIs are in this file) is
+ * guaranteed to be free of XSS due to incorrect use of such DOM APIs (modulo
+ * correctness of code that produces values of the respective goog.html types,
+ * and absent code that violates type safety).
+ *
+ * For example, assigning to an element's .innerHTML property a string that is
+ * derived (even partially) from untrusted input typically results in an XSS
+ * vulnerability. The type-safe wrapper goog.html.setInnerHtml consumes a value
+ * of type goog.html.SafeHtml, whose contract states that using its values in a
+ * HTML context will not result in XSS. Hence a program that is free of direct
+ * assignments to any element's innerHTML property (with the exception of the
+ * assignment to .innerHTML in this file) is guaranteed to be free of XSS due to
+ * assignment of untrusted strings to the innerHTML property.
+ */
+
+goog.provide('goog.dom.safe');
+goog.provide('goog.dom.safe.InsertAdjacentHtmlPosition');
+
+goog.require('goog.asserts');
+goog.require('goog.html.SafeHtml');
+goog.require('goog.html.SafeUrl');
+goog.require('goog.html.TrustedResourceUrl');
+goog.require('goog.string');
+goog.require('goog.string.Const');
+
+
+/** @enum {string} */
+goog.dom.safe.InsertAdjacentHtmlPosition = {
+  AFTERBEGIN: 'afterbegin',
+  AFTEREND: 'afterend',
+  BEFOREBEGIN: 'beforebegin',
+  BEFOREEND: 'beforeend'
+};
+
+
+/**
+ * Inserts known-safe HTML into a Node, at the specified position.
+ * @param {!Node} node The node on which to call insertAdjacentHTML.
+ * @param {!goog.dom.safe.InsertAdjacentHtmlPosition} position Position where
+ *     to insert the HTML.
+ * @param {!goog.html.SafeHtml} html The known-safe HTML to insert.
+ */
+goog.dom.safe.insertAdjacentHtml = function(node, position, html) {
+  node.insertAdjacentHTML(position, goog.html.SafeHtml.unwrap(html));
+};
+
+
+/**
+ * Assigns known-safe HTML to an element's innerHTML property.
+ * @param {!Element} elem The element whose innerHTML is to be assigned to.
+ * @param {!goog.html.SafeHtml} html The known-safe HTML to assign.
+ */
+goog.dom.safe.setInnerHtml = function(elem, html) {
+  elem.innerHTML = goog.html.SafeHtml.unwrap(html);
+};
+
+
+/**
+ * Assigns known-safe HTML to an element's outerHTML property.
+ * @param {!Element} elem The element whose outerHTML is to be assigned to.
+ * @param {!goog.html.SafeHtml} html The known-safe HTML to assign.
+ */
+goog.dom.safe.setOuterHtml = function(elem, html) {
+  elem.outerHTML = goog.html.SafeHtml.unwrap(html);
+};
+
+
+/**
+ * Writes known-safe HTML to a document.
+ * @param {!Document} doc The document to be written to.
+ * @param {!goog.html.SafeHtml} html The known-safe HTML to assign.
+ */
+goog.dom.safe.documentWrite = function(doc, html) {
+  doc.write(goog.html.SafeHtml.unwrap(html));
+};
+
+
+/**
+ * Safely assigns a URL to an anchor element's href property.
+ *
+ * If url is of type goog.html.SafeUrl, its value is unwrapped and assigned to
+ * anchor's href property.  If url is of type string however, it is first
+ * sanitized using goog.html.SafeUrl.sanitize.
+ *
+ * Example usage:
+ *   goog.dom.safe.setAnchorHref(anchorEl, url);
+ * which is a safe alternative to
+ *   anchorEl.href = url;
+ * The latter can result in XSS vulnerabilities if url is a
+ * user-/attacker-controlled value.
+ *
+ * @param {!HTMLAnchorElement} anchor The anchor element whose href property
+ *     is to be assigned to.
+ * @param {string|!goog.html.SafeUrl} url The URL to assign.
+ * @see goog.html.SafeUrl#sanitize
+ */
+goog.dom.safe.setAnchorHref = function(anchor, url) {
+  /** @type {!goog.html.SafeUrl} */
+  var safeUrl;
+  if (url instanceof goog.html.SafeUrl) {
+    safeUrl = url;
+  } else {
+    safeUrl = goog.html.SafeUrl.sanitize(url);
+  }
+  anchor.href = goog.html.SafeUrl.unwrap(safeUrl);
+};
+
+
+/**
+ * Safely assigns a URL to an image element's src property.
+ *
+ * If url is of type goog.html.SafeUrl, its value is unwrapped and assigned to
+ * image's src property.  If url is of type string however, it is first
+ * sanitized using goog.html.SafeUrl.sanitize.
+ *
+ * @param {!HTMLImageElement} imageElement The image element whose src property
+ *     is to be assigned to.
+ * @param {string|!goog.html.SafeUrl} url The URL to assign.
+ * @see goog.html.SafeUrl#sanitize
+ */
+goog.dom.safe.setImageSrc = function(imageElement, url) {
+  /** @type {!goog.html.SafeUrl} */
+  var safeUrl;
+  if (url instanceof goog.html.SafeUrl) {
+    safeUrl = url;
+  } else {
+    safeUrl = goog.html.SafeUrl.sanitize(url);
+  }
+  imageElement.src = goog.html.SafeUrl.unwrap(safeUrl);
+};
+
+
+/**
+ * Safely assigns a URL to an embed element's src property.
+ *
+ * Example usage:
+ *   goog.dom.safe.setEmbedSrc(embedEl, url);
+ * which is a safe alternative to
+ *   embedEl.src = url;
+ * The latter can result in loading untrusted code unless it is ensured that
+ * the URL refers to a trustworthy resource.
+ *
+ * @param {!HTMLEmbedElement} embed The embed element whose src property
+ *     is to be assigned to.
+ * @param {!goog.html.TrustedResourceUrl} url The URL to assign.
+ */
+goog.dom.safe.setEmbedSrc = function(embed, url) {
+  embed.src = goog.html.TrustedResourceUrl.unwrap(url);
+};
+
+
+/**
+ * Safely assigns a URL to a frame element's src property.
+ *
+ * Example usage:
+ *   goog.dom.safe.setFrameSrc(frameEl, url);
+ * which is a safe alternative to
+ *   frameEl.src = url;
+ * The latter can result in loading untrusted code unless it is ensured that
+ * the URL refers to a trustworthy resource.
+ *
+ * @param {!HTMLFrameElement} frame The frame element whose src property
+ *     is to be assigned to.
+ * @param {!goog.html.TrustedResourceUrl} url The URL to assign.
+ */
+goog.dom.safe.setFrameSrc = function(frame, url) {
+  frame.src = goog.html.TrustedResourceUrl.unwrap(url);
+};
+
+
+/**
+ * Safely assigns a URL to an iframe element's src property.
+ *
+ * Example usage:
+ *   goog.dom.safe.setIframeSrc(iframeEl, url);
+ * which is a safe alternative to
+ *   iframeEl.src = url;
+ * The latter can result in loading untrusted code unless it is ensured that
+ * the URL refers to a trustworthy resource.
+ *
+ * @param {!HTMLIFrameElement} iframe The iframe element whose src property
+ *     is to be assigned to.
+ * @param {!goog.html.TrustedResourceUrl} url The URL to assign.
+ */
+goog.dom.safe.setIframeSrc = function(iframe, url) {
+  iframe.src = goog.html.TrustedResourceUrl.unwrap(url);
+};
+
+
+/**
+ * Safely sets a link element's href and rel properties. Whether or not
+ * the URL assigned to href has to be a goog.html.TrustedResourceUrl
+ * depends on the value of the rel property. If rel contains "stylesheet"
+ * then a TrustedResourceUrl is required.
+ *
+ * Example usage:
+ *   goog.dom.safe.setLinkHrefAndRel(linkEl, url, 'stylesheet');
+ * which is a safe alternative to
+ *   linkEl.rel = 'stylesheet';
+ *   linkEl.href = url;
+ * The latter can result in loading untrusted code unless it is ensured that
+ * the URL refers to a trustworthy resource.
+ *
+ * @param {!HTMLLinkElement} link The link element whose href property
+ *     is to be assigned to.
+ * @param {string|!goog.html.SafeUrl|!goog.html.TrustedResourceUrl} url The URL
+ *     to assign to the href property. Must be a TrustedResourceUrl if the
+ *     value assigned to rel contains "stylesheet". A string value is
+ *     sanitized with goog.html.SafeUrl.sanitize.
+ * @param {string} rel The value to assign to the rel property.
+ * @throws {Error} if rel contains "stylesheet" and url is not a
+ *     TrustedResourceUrl
+ * @see goog.html.SafeUrl#sanitize
+ */
+goog.dom.safe.setLinkHrefAndRel = function(link, url, rel) {
+  link.rel = rel;
+  if (goog.string.caseInsensitiveContains(rel, 'stylesheet')) {
+    goog.asserts.assert(
+        url instanceof goog.html.TrustedResourceUrl,
+        'URL must be TrustedResourceUrl because "rel" contains "stylesheet"');
+    link.href = goog.html.TrustedResourceUrl.unwrap(url);
+  } else if (url instanceof goog.html.TrustedResourceUrl) {
+    link.href = goog.html.TrustedResourceUrl.unwrap(url);
+  } else if (url instanceof goog.html.SafeUrl) {
+    link.href = goog.html.SafeUrl.unwrap(url);
+  } else {  // string
+    // SafeUrl.sanitize must return legitimate SafeUrl when passed a string.
+    link.href = goog.html.SafeUrl.sanitize(url).getTypedStringValue();
+  }
+};
+
+
+/**
+ * Safely assigns a URL to an object element's data property.
+ *
+ * Example usage:
+ *   goog.dom.safe.setObjectData(objectEl, url);
+ * which is a safe alternative to
+ *   objectEl.data = url;
+ * The latter can result in loading untrusted code unless setit is ensured that
+ * the URL refers to a trustworthy resource.
+ *
+ * @param {!HTMLObjectElement} object The object element whose data property
+ *     is to be assigned to.
+ * @param {!goog.html.TrustedResourceUrl} url The URL to assign.
+ */
+goog.dom.safe.setObjectData = function(object, url) {
+  object.data = goog.html.TrustedResourceUrl.unwrap(url);
+};
+
+
+/**
+ * Safely assigns a URL to an iframe element's src property.
+ *
+ * Example usage:
+ *   goog.dom.safe.setScriptSrc(scriptEl, url);
+ * which is a safe alternative to
+ *   scriptEl.src = url;
+ * The latter can result in loading untrusted code unless it is ensured that
+ * the URL refers to a trustworthy resource.
+ *
+ * @param {!HTMLScriptElement} script The script element whose src property
+ *     is to be assigned to.
+ * @param {!goog.html.TrustedResourceUrl} url The URL to assign.
+ */
+goog.dom.safe.setScriptSrc = function(script, url) {
+  script.src = goog.html.TrustedResourceUrl.unwrap(url);
+};
+
+
+/**
+ * Safely assigns a URL to a Location object's href property.
+ *
+ * If url is of type goog.html.SafeUrl, its value is unwrapped and assigned to
+ * loc's href property.  If url is of type string however, it is first sanitized
+ * using goog.html.SafeUrl.sanitize.
+ *
+ * Example usage:
+ *   goog.dom.safe.setLocationHref(document.location, redirectUrl);
+ * which is a safe alternative to
+ *   document.location.href = redirectUrl;
+ * The latter can result in XSS vulnerabilities if redirectUrl is a
+ * user-/attacker-controlled value.
+ *
+ * @param {!Location} loc The Location object whose href property is to be
+ *     assigned to.
+ * @param {string|!goog.html.SafeUrl} url The URL to assign.
+ * @see goog.html.SafeUrl#sanitize
+ */
+goog.dom.safe.setLocationHref = function(loc, url) {
+  /** @type {!goog.html.SafeUrl} */
+  var safeUrl;
+  if (url instanceof goog.html.SafeUrl) {
+    safeUrl = url;
+  } else {
+    safeUrl = goog.html.SafeUrl.sanitize(url);
+  }
+  loc.href = goog.html.SafeUrl.unwrap(safeUrl);
+};
+
+
+/**
+ * Safely opens a URL in a new window (via window.open).
+ *
+ * If url is of type goog.html.SafeUrl, its value is unwrapped and passed in to
+ * window.open.  If url is of type string however, it is first sanitized
+ * using goog.html.SafeUrl.sanitize.
+ *
+ * Note that this function does not prevent leakages via the referer that is
+ * sent by window.open. It is advised to only use this to open 1st party URLs.
+ *
+ * Example usage:
+ *   goog.dom.safe.openInWindow(url);
+ * which is a safe alternative to
+ *   window.open(url);
+ * The latter can result in XSS vulnerabilities if redirectUrl is a
+ * user-/attacker-controlled value.
+ *
+ * @param {string|!goog.html.SafeUrl} url The URL to open.
+ * @param {Window=} opt_openerWin Window of which to call the .open() method.
+ *     Defaults to the global window.
+ * @param {!goog.string.Const=} opt_name Name of the window to open in. Can be
+ *     _top, etc as allowed by window.open().
+ * @param {string=} opt_specs Comma-separated list of specifications, same as
+ *     in window.open().
+ * @param {boolean=} opt_replace Whether to replace the current entry in browser
+ *     history, same as in window.open().
+ * @return {Window} Window the url was opened in.
+ */
+goog.dom.safe.openInWindow = function(
+    url, opt_openerWin, opt_name, opt_specs, opt_replace) {
+  /** @type {!goog.html.SafeUrl} */
+  var safeUrl;
+  if (url instanceof goog.html.SafeUrl) {
+    safeUrl = url;
+  } else {
+    safeUrl = goog.html.SafeUrl.sanitize(url);
+  }
+  var win = opt_openerWin || window;
+  return win.open(
+      goog.html.SafeUrl.unwrap(safeUrl),
+      // If opt_name is undefined, simply passing that in to open() causes IE to
+      // reuse the current window instead of opening a new one. Thus we pass ''
+      // in instead, which according to spec opens a new window. See
+      // https://html.spec.whatwg.org/multipage/browsers.html#dom-open .
+      opt_name ? goog.string.Const.unwrap(opt_name) : '', opt_specs,
+      opt_replace);
+};

viz/out/goog/dom/tagname.js

@@ -0,0 +1,160 @@
+// Copyright 2007 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Defines the goog.dom.TagName enum.  This enumerates
+ * all HTML tag names specified in either the the W3C HTML 4.01 index of
+ * elements or the HTML5 draft specification.
+ *
+ * References:
+ * http://www.w3.org/TR/html401/index/elements.html
+ * http://dev.w3.org/html5/spec/section-index.html
+ *
+ */
+goog.provide('goog.dom.TagName');
+
+
+/**
+ * Enum of all html tag names specified by the W3C HTML4.01 and HTML5
+ * specifications.
+ * @enum {string}
+ */
+goog.dom.TagName = {
+  A: 'A',
+  ABBR: 'ABBR',
+  ACRONYM: 'ACRONYM',
+  ADDRESS: 'ADDRESS',
+  APPLET: 'APPLET',
+  AREA: 'AREA',
+  ARTICLE: 'ARTICLE',
+  ASIDE: 'ASIDE',
+  AUDIO: 'AUDIO',
+  B: 'B',
+  BASE: 'BASE',
+  BASEFONT: 'BASEFONT',
+  BDI: 'BDI',
+  BDO: 'BDO',
+  BIG: 'BIG',
+  BLOCKQUOTE: 'BLOCKQUOTE',
+  BODY: 'BODY',
+  BR: 'BR',
+  BUTTON: 'BUTTON',
+  CANVAS: 'CANVAS',
+  CAPTION: 'CAPTION',
+  CENTER: 'CENTER',
+  CITE: 'CITE',
+  CODE: 'CODE',
+  COL: 'COL',
+  COLGROUP: 'COLGROUP',
+  COMMAND: 'COMMAND',
+  DATA: 'DATA',
+  DATALIST: 'DATALIST',
+  DD: 'DD',
+  DEL: 'DEL',
+  DETAILS: 'DETAILS',
+  DFN: 'DFN',
+  DIALOG: 'DIALOG',
+  DIR: 'DIR',
+  DIV: 'DIV',
+  DL: 'DL',
+  DT: 'DT',
+  EM: 'EM',
+  EMBED: 'EMBED',
+  FIELDSET: 'FIELDSET',
+  FIGCAPTION: 'FIGCAPTION',
+  FIGURE: 'FIGURE',
+  FONT: 'FONT',
+  FOOTER: 'FOOTER',
+  FORM: 'FORM',
+  FRAME: 'FRAME',
+  FRAMESET: 'FRAMESET',
+  H1: 'H1',
+  H2: 'H2',
+  H3: 'H3',
+  H4: 'H4',
+  H5: 'H5',
+  H6: 'H6',
+  HEAD: 'HEAD',
+  HEADER: 'HEADER',
+  HGROUP: 'HGROUP',
+  HR: 'HR',
+  HTML: 'HTML',
+  I: 'I',
+  IFRAME: 'IFRAME',
+  IMG: 'IMG',
+  INPUT: 'INPUT',
+  INS: 'INS',
+  ISINDEX: 'ISINDEX',
+  KBD: 'KBD',
+  KEYGEN: 'KEYGEN',
+  LABEL: 'LABEL',
+  LEGEND: 'LEGEND',
+  LI: 'LI',
+  LINK: 'LINK',
+  MAP: 'MAP',
+  MARK: 'MARK',
+  MATH: 'MATH',
+  MENU: 'MENU',
+  META: 'META',
+  METER: 'METER',
+  NAV: 'NAV',
+  NOFRAMES: 'NOFRAMES',
+  NOSCRIPT: 'NOSCRIPT',
+  OBJECT: 'OBJECT',
+  OL: 'OL',
+  OPTGROUP: 'OPTGROUP',
+  OPTION: 'OPTION',
+  OUTPUT: 'OUTPUT',
+  P: 'P',
+  PARAM: 'PARAM',
+  PRE: 'PRE',
+  PROGRESS: 'PROGRESS',
+  Q: 'Q',
+  RP: 'RP',
+  RT: 'RT',
+  RUBY: 'RUBY',
+  S: 'S',
+  SAMP: 'SAMP',
+  SCRIPT: 'SCRIPT',
+  SECTION: 'SECTION',
+  SELECT: 'SELECT',
+  SMALL: 'SMALL',
+  SOURCE: 'SOURCE',
+  SPAN: 'SPAN',
+  STRIKE: 'STRIKE',
+  STRONG: 'STRONG',
+  STYLE: 'STYLE',
+  SUB: 'SUB',
+  SUMMARY: 'SUMMARY',
+  SUP: 'SUP',
+  SVG: 'SVG',
+  TABLE: 'TABLE',
+  TBODY: 'TBODY',
+  TD: 'TD',
+  TEMPLATE: 'TEMPLATE',
+  TEXTAREA: 'TEXTAREA',
+  TFOOT: 'TFOOT',
+  TH: 'TH',
+  THEAD: 'THEAD',
+  TIME: 'TIME',
+  TITLE: 'TITLE',
+  TR: 'TR',
+  TRACK: 'TRACK',
+  TT: 'TT',
+  U: 'U',
+  UL: 'UL',
+  VAR: 'VAR',
+  VIDEO: 'VIDEO',
+  WBR: 'WBR'
+};

viz/out/goog/dom/tags.js

@@ -0,0 +1,41 @@
+// Copyright 2014 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Utilities for HTML element tag names.
+ */
+goog.provide('goog.dom.tags');
+
+goog.require('goog.object');
+
+
+/**
+ * The void elements specified by
+ * http://www.w3.org/TR/html-markup/syntax.html#void-elements.
+ * @const @private {!Object<string, boolean>}
+ */
+goog.dom.tags.VOID_TAGS_ = goog.object.createSet(
+    'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input',
+    'keygen', 'link', 'meta', 'param', 'source', 'track', 'wbr');
+
+
+/**
+ * Checks whether the tag is void (with no contents allowed and no legal end
+ * tag), for example 'br'.
+ * @param {string} tagName The tag name in lower case.
+ * @return {boolean}
+ */
+goog.dom.tags.isVoidTag = function(tagName) {
+  return goog.dom.tags.VOID_TAGS_[tagName] === true;
+};

viz/out/goog/events/browserevent.js

@@ -0,0 +1,402 @@
+// Copyright 2005 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview A patched, standardized event object for browser events.
+ *
+ * <pre>
+ * The patched event object contains the following members:
+ * - type           {string}    Event type, e.g. 'click'
+ * - target         {Object}    The element that actually triggered the event
+ * - currentTarget  {Object}    The element the listener is attached to
+ * - relatedTarget  {Object}    For mouseover and mouseout, the previous object
+ * - offsetX        {number}    X-coordinate relative to target
+ * - offsetY        {number}    Y-coordinate relative to target
+ * - clientX        {number}    X-coordinate relative to viewport
+ * - clientY        {number}    Y-coordinate relative to viewport
+ * - screenX        {number}    X-coordinate relative to the edge of the screen
+ * - screenY        {number}    Y-coordinate relative to the edge of the screen
+ * - button         {number}    Mouse button. Use isButton() to test.
+ * - keyCode        {number}    Key-code
+ * - ctrlKey        {boolean}   Was ctrl key depressed
+ * - altKey         {boolean}   Was alt key depressed
+ * - shiftKey       {boolean}   Was shift key depressed
+ * - metaKey        {boolean}   Was meta key depressed
+ * - defaultPrevented {boolean} Whether the default action has been prevented
+ * - state          {Object}    History state object
+ *
+ * NOTE: The keyCode member contains the raw browser keyCode. For normalized
+ * key and character code use {@link goog.events.KeyHandler}.
+ * </pre>
+ *
+ * @author arv@google.com (Erik Arvidsson)
+ */
+
+goog.provide('goog.events.BrowserEvent');
+goog.provide('goog.events.BrowserEvent.MouseButton');
+
+goog.require('goog.events.BrowserFeature');
+goog.require('goog.events.Event');
+goog.require('goog.events.EventType');
+goog.require('goog.reflect');
+goog.require('goog.userAgent');
+
+
+
+/**
+ * Accepts a browser event object and creates a patched, cross browser event
+ * object.
+ * The content of this object will not be initialized if no event object is
+ * provided. If this is the case, init() needs to be invoked separately.
+ * @param {Event=} opt_e Browser event object.
+ * @param {EventTarget=} opt_currentTarget Current target for event.
+ * @constructor
+ * @extends {goog.events.Event}
+ */
+goog.events.BrowserEvent = function(opt_e, opt_currentTarget) {
+  goog.events.BrowserEvent.base(this, 'constructor', opt_e ? opt_e.type : '');
+
+  /**
+   * Target that fired the event.
+   * @override
+   * @type {Node}
+   */
+  this.target = null;
+
+  /**
+   * Node that had the listener attached.
+   * @override
+   * @type {Node|undefined}
+   */
+  this.currentTarget = null;
+
+  /**
+   * For mouseover and mouseout events, the related object for the event.
+   * @type {Node}
+   */
+  this.relatedTarget = null;
+
+  /**
+   * X-coordinate relative to target.
+   * @type {number}
+   */
+  this.offsetX = 0;
+
+  /**
+   * Y-coordinate relative to target.
+   * @type {number}
+   */
+  this.offsetY = 0;
+
+  /**
+   * X-coordinate relative to the window.
+   * @type {number}
+   */
+  this.clientX = 0;
+
+  /**
+   * Y-coordinate relative to the window.
+   * @type {number}
+   */
+  this.clientY = 0;
+
+  /**
+   * X-coordinate relative to the monitor.
+   * @type {number}
+   */
+  this.screenX = 0;
+
+  /**
+   * Y-coordinate relative to the monitor.
+   * @type {number}
+   */
+  this.screenY = 0;
+
+  /**
+   * Which mouse button was pressed.
+   * @type {number}
+   */
+  this.button = 0;
+
+  /**
+   * Keycode of key press.
+   * @type {number}
+   */
+  this.keyCode = 0;
+
+  /**
+   * Keycode of key press.
+   * @type {number}
+   */
+  this.charCode = 0;
+
+  /**
+   * Whether control was pressed at time of event.
+   * @type {boolean}
+   */
+  this.ctrlKey = false;
+
+  /**
+   * Whether alt was pressed at time of event.
+   * @type {boolean}
+   */
+  this.altKey = false;
+
+  /**
+   * Whether shift was pressed at time of event.
+   * @type {boolean}
+   */
+  this.shiftKey = false;
+
+  /**
+   * Whether the meta key was pressed at time of event.
+   * @type {boolean}
+   */
+  this.metaKey = false;
+
+  /**
+   * History state object, only set for PopState events where it's a copy of the
+   * state object provided to pushState or replaceState.
+   * @type {Object}
+   */
+  this.state = null;
+
+  /**
+   * Whether the default platform modifier key was pressed at time of event.
+   * (This is control for all platforms except Mac, where it's Meta.)
+   * @type {boolean}
+   */
+  this.platformModifierKey = false;
+
+  /**
+   * The browser event object.
+   * @private {Event}
+   */
+  this.event_ = null;
+
+  if (opt_e) {
+    this.init(opt_e, opt_currentTarget);
+  }
+};
+goog.inherits(goog.events.BrowserEvent, goog.events.Event);
+
+
+/**
+ * Normalized button constants for the mouse.
+ * @enum {number}
+ */
+goog.events.BrowserEvent.MouseButton = {
+  LEFT: 0,
+  MIDDLE: 1,
+  RIGHT: 2
+};
+
+
+/**
+ * Static data for mapping mouse buttons.
+ * @type {!Array<number>}
+ */
+goog.events.BrowserEvent.IEButtonMap = [
+  1,  // LEFT
+  4,  // MIDDLE
+  2   // RIGHT
+];
+
+
+/**
+ * Accepts a browser event object and creates a patched, cross browser event
+ * object.
+ * @param {Event} e Browser event object.
+ * @param {EventTarget=} opt_currentTarget Current target for event.
+ */
+goog.events.BrowserEvent.prototype.init = function(e, opt_currentTarget) {
+  var type = this.type = e.type;
+
+  /**
+   * On touch devices use the first "changed touch" as the relevant touch.
+   * @type {Touch}
+   */
+  var relevantTouch = e.changedTouches ? e.changedTouches[0] : null;
+
+  // TODO(nicksantos): Change this.target to type EventTarget.
+  this.target = /** @type {Node} */ (e.target) || e.srcElement;
+
+  // TODO(nicksantos): Change this.currentTarget to type EventTarget.
+  this.currentTarget = /** @type {Node} */ (opt_currentTarget);
+
+  var relatedTarget = /** @type {Node} */ (e.relatedTarget);
+  if (relatedTarget) {
+    // There's a bug in FireFox where sometimes, relatedTarget will be a
+    // chrome element, and accessing any property of it will get a permission
+    // denied exception. See:
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=497780
+    if (goog.userAgent.GECKO) {
+      if (!goog.reflect.canAccessProperty(relatedTarget, 'nodeName')) {
+        relatedTarget = null;
+      }
+    }
+    // TODO(arv): Use goog.events.EventType when it has been refactored into its
+    // own file.
+  } else if (type == goog.events.EventType.MOUSEOVER) {
+    relatedTarget = e.fromElement;
+  } else if (type == goog.events.EventType.MOUSEOUT) {
+    relatedTarget = e.toElement;
+  }
+
+  this.relatedTarget = relatedTarget;
+
+  if (!goog.isNull(relevantTouch)) {
+    this.clientX = relevantTouch.clientX !== undefined ? relevantTouch.clientX :
+                                                         relevantTouch.pageX;
+    this.clientY = relevantTouch.clientY !== undefined ? relevantTouch.clientY :
+                                                         relevantTouch.pageY;
+    this.screenX = relevantTouch.screenX || 0;
+    this.screenY = relevantTouch.screenY || 0;
+  } else {
+    // Webkit emits a lame warning whenever layerX/layerY is accessed.
+    // http://code.google.com/p/chromium/issues/detail?id=101733
+    this.offsetX = (goog.userAgent.WEBKIT || e.offsetX !== undefined) ?
+        e.offsetX :
+        e.layerX;
+    this.offsetY = (goog.userAgent.WEBKIT || e.offsetY !== undefined) ?
+        e.offsetY :
+        e.layerY;
+    this.clientX = e.clientX !== undefined ? e.clientX : e.pageX;
+    this.clientY = e.clientY !== undefined ? e.clientY : e.pageY;
+    this.screenX = e.screenX || 0;
+    this.screenY = e.screenY || 0;
+  }
+
+  this.button = e.button;
+
+  this.keyCode = e.keyCode || 0;
+  this.charCode = e.charCode || (type == 'keypress' ? e.keyCode : 0);
+  this.ctrlKey = e.ctrlKey;
+  this.altKey = e.altKey;
+  this.shiftKey = e.shiftKey;
+  this.metaKey = e.metaKey;
+  this.platformModifierKey = goog.userAgent.MAC ? e.metaKey : e.ctrlKey;
+  this.state = e.state;
+  this.event_ = e;
+  if (e.defaultPrevented) {
+    this.preventDefault();
+  }
+};
+
+
+/**
+ * Tests to see which button was pressed during the event. This is really only
+ * useful in IE and Gecko browsers. And in IE, it's only useful for
+ * mousedown/mouseup events, because click only fires for the left mouse button.
+ *
+ * Safari 2 only reports the left button being clicked, and uses the value '1'
+ * instead of 0. Opera only reports a mousedown event for the middle button, and
+ * no mouse events for the right button. Opera has default behavior for left and
+ * middle click that can only be overridden via a configuration setting.
+ *
+ * There's a nice table of this mess at http://www.unixpapa.com/js/mouse.html.
+ *
+ * @param {goog.events.BrowserEvent.MouseButton} button The button
+ *     to test for.
+ * @return {boolean} True if button was pressed.
+ */
+goog.events.BrowserEvent.prototype.isButton = function(button) {
+  if (!goog.events.BrowserFeature.HAS_W3C_BUTTON) {
+    if (this.type == 'click') {
+      return button == goog.events.BrowserEvent.MouseButton.LEFT;
+    } else {
+      return !!(
+          this.event_.button & goog.events.BrowserEvent.IEButtonMap[button]);
+    }
+  } else {
+    return this.event_.button == button;
+  }
+};
+
+
+/**
+ * Whether this has an "action"-producing mouse button.
+ *
+ * By definition, this includes left-click on windows/linux, and left-click
+ * without the ctrl key on Macs.
+ *
+ * @return {boolean} The result.
+ */
+goog.events.BrowserEvent.prototype.isMouseActionButton = function() {
+  // Webkit does not ctrl+click to be a right-click, so we
+  // normalize it to behave like Gecko and Opera.
+  return this.isButton(goog.events.BrowserEvent.MouseButton.LEFT) &&
+      !(goog.userAgent.WEBKIT && goog.userAgent.MAC && this.ctrlKey);
+};
+
+
+/**
+ * @override
+ */
+goog.events.BrowserEvent.prototype.stopPropagation = function() {
+  goog.events.BrowserEvent.superClass_.stopPropagation.call(this);
+  if (this.event_.stopPropagation) {
+    this.event_.stopPropagation();
+  } else {
+    this.event_.cancelBubble = true;
+  }
+};
+
+
+/**
+ * @override
+ */
+goog.events.BrowserEvent.prototype.preventDefault = function() {
+  goog.events.BrowserEvent.superClass_.preventDefault.call(this);
+  var be = this.event_;
+  if (!be.preventDefault) {
+    be.returnValue = false;
+    if (goog.events.BrowserFeature.SET_KEY_CODE_TO_PREVENT_DEFAULT) {
+      /** @preserveTry */
+      try {
+        // Most keys can be prevented using returnValue. Some special keys
+        // require setting the keyCode to -1 as well:
+        //
+        // In IE7:
+        // F3, F5, F10, F11, Ctrl+P, Crtl+O, Ctrl+F (these are taken from IE6)
+        //
+        // In IE8:
+        // Ctrl+P, Crtl+O, Ctrl+F (F1-F12 cannot be stopped through the event)
+        //
+        // We therefore do this for all function keys as well as when Ctrl key
+        // is pressed.
+        var VK_F1 = 112;
+        var VK_F12 = 123;
+        if (be.ctrlKey || be.keyCode >= VK_F1 && be.keyCode <= VK_F12) {
+          be.keyCode = -1;
+        }
+      } catch (ex) {
+        // IE throws an 'access denied' exception when trying to change
+        // keyCode in some situations (e.g. srcElement is input[type=file],
+        // or srcElement is an anchor tag rewritten by parent's innerHTML).
+        // Do nothing in this case.
+      }
+    }
+  } else {
+    be.preventDefault();
+  }
+};
+
+
+/**
+ * @return {Event} The underlying browser event object.
+ */
+goog.events.BrowserEvent.prototype.getBrowserEvent = function() {
+  return this.event_;
+};

viz/out/goog/events/browserfeature.js

@@ -0,0 +1,84 @@
+// Copyright 2010 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Browser capability checks for the events package.
+ *
+ */
+
+
+goog.provide('goog.events.BrowserFeature');
+
+goog.require('goog.userAgent');
+
+
+/**
+ * Enum of browser capabilities.
+ * @enum {boolean}
+ */
+goog.events.BrowserFeature = {
+  /**
+   * Whether the button attribute of the event is W3C compliant.  False in
+   * Internet Explorer prior to version 9; document-version dependent.
+   */
+  HAS_W3C_BUTTON:
+      !goog.userAgent.IE || goog.userAgent.isDocumentModeOrHigher(9),
+
+  /**
+   * Whether the browser supports full W3C event model.
+   */
+  HAS_W3C_EVENT_SUPPORT:
+      !goog.userAgent.IE || goog.userAgent.isDocumentModeOrHigher(9),
+
+  /**
+   * To prevent default in IE7-8 for certain keydown events we need set the
+   * keyCode to -1.
+   */
+  SET_KEY_CODE_TO_PREVENT_DEFAULT:
+      goog.userAgent.IE && !goog.userAgent.isVersionOrHigher('9'),
+
+  /**
+   * Whether the {@code navigator.onLine} property is supported.
+   */
+  HAS_NAVIGATOR_ONLINE_PROPERTY:
+      !goog.userAgent.WEBKIT || goog.userAgent.isVersionOrHigher('528'),
+
+  /**
+   * Whether HTML5 network online/offline events are supported.
+   */
+  HAS_HTML5_NETWORK_EVENT_SUPPORT:
+      goog.userAgent.GECKO && goog.userAgent.isVersionOrHigher('1.9b') ||
+      goog.userAgent.IE && goog.userAgent.isVersionOrHigher('8') ||
+      goog.userAgent.OPERA && goog.userAgent.isVersionOrHigher('9.5') ||
+      goog.userAgent.WEBKIT && goog.userAgent.isVersionOrHigher('528'),
+
+  /**
+   * Whether HTML5 network events fire on document.body, or otherwise the
+   * window.
+   */
+  HTML5_NETWORK_EVENTS_FIRE_ON_BODY:
+      goog.userAgent.GECKO && !goog.userAgent.isVersionOrHigher('8') ||
+      goog.userAgent.IE && !goog.userAgent.isVersionOrHigher('9'),
+
+  /**
+   * Whether touch is enabled in the browser.
+   */
+  TOUCH_ENABLED:
+      ('ontouchstart' in goog.global ||
+       !!(goog.global['document'] && document.documentElement &&
+          'ontouchstart' in document.documentElement) ||
+       // IE10 uses non-standard touch events, so it has a different check.
+       !!(goog.global['navigator'] &&
+          goog.global['navigator']['msMaxTouchPoints']))
+};

viz/out/goog/events/event.js

@@ -0,0 +1,145 @@
+// Copyright 2005 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview A base class for event objects.
+ *
+ */
+
+
+goog.provide('goog.events.Event');
+goog.provide('goog.events.EventLike');
+
+/**
+ * goog.events.Event no longer depends on goog.Disposable. Keep requiring
+ * goog.Disposable here to not break projects which assume this dependency.
+ * @suppress {extraRequire}
+ */
+goog.require('goog.Disposable');
+goog.require('goog.events.EventId');
+
+
+/**
+ * A typedef for event like objects that are dispatchable via the
+ * goog.events.dispatchEvent function. strings are treated as the type for a
+ * goog.events.Event. Objects are treated as an extension of a new
+ * goog.events.Event with the type property of the object being used as the type
+ * of the Event.
+ * @typedef {string|Object|goog.events.Event|goog.events.EventId}
+ */
+goog.events.EventLike;
+
+
+
+/**
+ * A base class for event objects, so that they can support preventDefault and
+ * stopPropagation.
+ *
+ * @suppress {underscore} Several properties on this class are technically
+ *     public, but referencing these properties outside this package is strongly
+ *     discouraged.
+ *
+ * @param {string|!goog.events.EventId} type Event Type.
+ * @param {Object=} opt_target Reference to the object that is the target of
+ *     this event. It has to implement the {@code EventTarget} interface
+ *     declared at {@link http://developer.mozilla.org/en/DOM/EventTarget}.
+ * @constructor
+ */
+goog.events.Event = function(type, opt_target) {
+  /**
+   * Event type.
+   * @type {string}
+   */
+  this.type = type instanceof goog.events.EventId ? String(type) : type;
+
+  /**
+   * TODO(tbreisacher): The type should probably be
+   * EventTarget|goog.events.EventTarget.
+   *
+   * Target of the event.
+   * @type {Object|undefined}
+   */
+  this.target = opt_target;
+
+  /**
+   * Object that had the listener attached.
+   * @type {Object|undefined}
+   */
+  this.currentTarget = this.target;
+
+  /**
+   * Whether to cancel the event in internal capture/bubble processing for IE.
+   * @type {boolean}
+   * @public
+   */
+  this.propagationStopped_ = false;
+
+  /**
+   * Whether the default action has been prevented.
+   * This is a property to match the W3C specification at
+   * {@link http://www.w3.org/TR/DOM-Level-3-Events/
+   * #events-event-type-defaultPrevented}.
+   * Must be treated as read-only outside the class.
+   * @type {boolean}
+   */
+  this.defaultPrevented = false;
+
+  /**
+   * Return value for in internal capture/bubble processing for IE.
+   * @type {boolean}
+   * @public
+   * @suppress {underscore|visibility} Technically public, but referencing this
+   *     outside this package is strongly discouraged.
+   */
+  this.returnValue_ = true;
+};
+
+
+/**
+ * Stops event propagation.
+ */
+goog.events.Event.prototype.stopPropagation = function() {
+  this.propagationStopped_ = true;
+};
+
+
+/**
+ * Prevents the default action, for example a link redirecting to a url.
+ */
+goog.events.Event.prototype.preventDefault = function() {
+  this.defaultPrevented = true;
+  this.returnValue_ = false;
+};
+
+
+/**
+ * Stops the propagation of the event. It is equivalent to
+ * {@code e.stopPropagation()}, but can be used as the callback argument of
+ * {@link goog.events.listen} without declaring another function.
+ * @param {!goog.events.Event} e An event.
+ */
+goog.events.Event.stopPropagation = function(e) {
+  e.stopPropagation();
+};
+
+
+/**
+ * Prevents the default action. It is equivalent to
+ * {@code e.preventDefault()}, but can be used as the callback argument of
+ * {@link goog.events.listen} without declaring another function.
+ * @param {!goog.events.Event} e An event.
+ */
+goog.events.Event.preventDefault = function(e) {
+  e.preventDefault();
+};

viz/out/goog/events/eventid.js

@@ -0,0 +1,46 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+goog.provide('goog.events.EventId');
+
+
+
+/**
+ * A templated class that is used when registering for events. Typical usage:
+ *
+ *    /** @type {goog.events.EventId<MyEventObj>} *\
+ *    var myEventId = new goog.events.EventId(
+ *        goog.events.getUniqueId(('someEvent'));
+ *
+ *    // No need to cast or declare here since the compiler knows the
+ *    // correct type of 'evt' (MyEventObj).
+ *    something.listen(myEventId, function(evt) {});
+ *
+ * @param {string} eventId
+ * @template T
+ * @constructor
+ * @struct
+ * @final
+ */
+goog.events.EventId = function(eventId) {
+  /** @const */ this.id = eventId;
+};
+
+
+/**
+ * @override
+ */
+goog.events.EventId.prototype.toString = function() {
+  return this.id;
+};

viz/out/goog/events/events.js

@@ -0,0 +1,989 @@
+// Copyright 2005 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview An event manager for both native browser event
+ * targets and custom JavaScript event targets
+ * ({@code goog.events.Listenable}). This provides an abstraction
+ * over browsers' event systems.
+ *
+ * It also provides a simulation of W3C event model's capture phase in
+ * Internet Explorer (IE 8 and below). Caveat: the simulation does not
+ * interact well with listeners registered directly on the elements
+ * (bypassing goog.events) or even with listeners registered via
+ * goog.events in a separate JS binary. In these cases, we provide
+ * no ordering guarantees.
+ *
+ * The listeners will receive a "patched" event object. Such event object
+ * contains normalized values for certain event properties that differs in
+ * different browsers.
+ *
+ * Example usage:
+ * <pre>
+ * goog.events.listen(myNode, 'click', function(e) { alert('woo') });
+ * goog.events.listen(myNode, 'mouseover', mouseHandler, true);
+ * goog.events.unlisten(myNode, 'mouseover', mouseHandler, true);
+ * goog.events.removeAll(myNode);
+ * </pre>
+ *
+ *                                            in IE and event object patching]
+ * @author arv@google.com (Erik Arvidsson)
+ *
+ * @see ../demos/events.html
+ * @see ../demos/event-propagation.html
+ * @see ../demos/stopevent.html
+ */
+
+// IMPLEMENTATION NOTES:
+// goog.events stores an auxiliary data structure on each EventTarget
+// source being listened on. This allows us to take advantage of GC,
+// having the data structure GC'd when the EventTarget is GC'd. This
+// GC behavior is equivalent to using W3C DOM Events directly.
+
+goog.provide('goog.events');
+goog.provide('goog.events.CaptureSimulationMode');
+goog.provide('goog.events.Key');
+goog.provide('goog.events.ListenableType');
+
+goog.require('goog.asserts');
+goog.require('goog.debug.entryPointRegistry');
+goog.require('goog.events.BrowserEvent');
+goog.require('goog.events.BrowserFeature');
+goog.require('goog.events.Listenable');
+goog.require('goog.events.ListenerMap');
+
+goog.forwardDeclare('goog.debug.ErrorHandler');
+goog.forwardDeclare('goog.events.EventWrapper');
+
+
+/**
+ * @typedef {number|goog.events.ListenableKey}
+ */
+goog.events.Key;
+
+
+/**
+ * @typedef {EventTarget|goog.events.Listenable}
+ */
+goog.events.ListenableType;
+
+
+/**
+ * Property name on a native event target for the listener map
+ * associated with the event target.
+ * @private @const {string}
+ */
+goog.events.LISTENER_MAP_PROP_ = 'closure_lm_' + ((Math.random() * 1e6) | 0);
+
+
+/**
+ * String used to prepend to IE event types.
+ * @const
+ * @private
+ */
+goog.events.onString_ = 'on';
+
+
+/**
+ * Map of computed "on<eventname>" strings for IE event types. Caching
+ * this removes an extra object allocation in goog.events.listen which
+ * improves IE6 performance.
+ * @const
+ * @dict
+ * @private
+ */
+goog.events.onStringMap_ = {};
+
+
+/**
+ * @enum {number} Different capture simulation mode for IE8-.
+ */
+goog.events.CaptureSimulationMode = {
+  /**
+   * Does not perform capture simulation. Will asserts in IE8- when you
+   * add capture listeners.
+   */
+  OFF_AND_FAIL: 0,
+
+  /**
+   * Does not perform capture simulation, silently ignore capture
+   * listeners.
+   */
+  OFF_AND_SILENT: 1,
+
+  /**
+   * Performs capture simulation.
+   */
+  ON: 2
+};
+
+
+/**
+ * @define {number} The capture simulation mode for IE8-. By default,
+ *     this is ON.
+ */
+goog.define('goog.events.CAPTURE_SIMULATION_MODE', 2);
+
+
+/**
+ * Estimated count of total native listeners.
+ * @private {number}
+ */
+goog.events.listenerCountEstimate_ = 0;
+
+
+/**
+ * Adds an event listener for a specific event on a native event
+ * target (such as a DOM element) or an object that has implemented
+ * {@link goog.events.Listenable}. A listener can only be added once
+ * to an object and if it is added again the key for the listener is
+ * returned. Note that if the existing listener is a one-off listener
+ * (registered via listenOnce), it will no longer be a one-off
+ * listener after a call to listen().
+ *
+ * @param {EventTarget|goog.events.Listenable} src The node to listen
+ *     to events on.
+ * @param {string|Array<string>|
+ *     !goog.events.EventId<EVENTOBJ>|!Array<!goog.events.EventId<EVENTOBJ>>}
+ *     type Event type or array of event types.
+ * @param {function(this:T, EVENTOBJ):?|{handleEvent:function(?):?}|null}
+ *     listener Callback method, or an object with a handleEvent function.
+ *     WARNING: passing an Object is now softly deprecated.
+ * @param {boolean=} opt_capt Whether to fire in capture phase (defaults to
+ *     false).
+ * @param {T=} opt_handler Element in whose scope to call the listener.
+ * @return {goog.events.Key} Unique key for the listener.
+ * @template T,EVENTOBJ
+ */
+goog.events.listen = function(src, type, listener, opt_capt, opt_handler) {
+  if (goog.isArray(type)) {
+    for (var i = 0; i < type.length; i++) {
+      goog.events.listen(src, type[i], listener, opt_capt, opt_handler);
+    }
+    return null;
+  }
+
+  listener = goog.events.wrapListener(listener);
+  if (goog.events.Listenable.isImplementedBy(src)) {
+    return src.listen(
+        /** @type {string|!goog.events.EventId} */ (type), listener, opt_capt,
+        opt_handler);
+  } else {
+    return goog.events.listen_(
+        /** @type {!EventTarget} */ (src),
+        /** @type {string|!goog.events.EventId} */ (type), listener,
+        /* callOnce */ false, opt_capt, opt_handler);
+  }
+};
+
+
+/**
+ * Adds an event listener for a specific event on a native event
+ * target. A listener can only be added once to an object and if it
+ * is added again the key for the listener is returned.
+ *
+ * Note that a one-off listener will not change an existing listener,
+ * if any. On the other hand a normal listener will change existing
+ * one-off listener to become a normal listener.
+ *
+ * @param {EventTarget} src The node to listen to events on.
+ * @param {string|!goog.events.EventId} type Event type.
+ * @param {!Function} listener Callback function.
+ * @param {boolean} callOnce Whether the listener is a one-off
+ *     listener or otherwise.
+ * @param {boolean=} opt_capt Whether to fire in capture phase (defaults to
+ *     false).
+ * @param {Object=} opt_handler Element in whose scope to call the listener.
+ * @return {goog.events.ListenableKey} Unique key for the listener.
+ * @private
+ */
+goog.events.listen_ = function(
+    src, type, listener, callOnce, opt_capt, opt_handler) {
+  if (!type) {
+    throw Error('Invalid event type');
+  }
+
+  var capture = !!opt_capt;
+  if (capture && !goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT) {
+    if (goog.events.CAPTURE_SIMULATION_MODE ==
+        goog.events.CaptureSimulationMode.OFF_AND_FAIL) {
+      goog.asserts.fail('Can not register capture listener in IE8-.');
+      return null;
+    } else if (
+        goog.events.CAPTURE_SIMULATION_MODE ==
+        goog.events.CaptureSimulationMode.OFF_AND_SILENT) {
+      return null;
+    }
+  }
+
+  var listenerMap = goog.events.getListenerMap_(src);
+  if (!listenerMap) {
+    src[goog.events.LISTENER_MAP_PROP_] = listenerMap =
+        new goog.events.ListenerMap(src);
+  }
+
+  var listenerObj =
+      listenerMap.add(type, listener, callOnce, opt_capt, opt_handler);
+
+  // If the listenerObj already has a proxy, it has been set up
+  // previously. We simply return.
+  if (listenerObj.proxy) {
+    return listenerObj;
+  }
+
+  var proxy = goog.events.getProxy();
+  listenerObj.proxy = proxy;
+
+  proxy.src = src;
+  proxy.listener = listenerObj;
+
+  // Attach the proxy through the browser's API
+  if (src.addEventListener) {
+    src.addEventListener(type.toString(), proxy, capture);
+  } else if (src.attachEvent) {
+    // The else if above used to be an unconditional else. It would call
+    // exception on IE11, spoiling the day of some callers. The previous
+    // incarnation of this code, from 2007, indicates that it replaced an
+    // earlier still version that caused excess allocations on IE6.
+    src.attachEvent(goog.events.getOnString_(type.toString()), proxy);
+  } else {
+    throw Error('addEventListener and attachEvent are unavailable.');
+  }
+
+  goog.events.listenerCountEstimate_++;
+  return listenerObj;
+};
+
+
+/**
+ * Helper function for returning a proxy function.
+ * @return {!Function} A new or reused function object.
+ */
+goog.events.getProxy = function() {
+  var proxyCallbackFunction = goog.events.handleBrowserEvent_;
+  // Use a local var f to prevent one allocation.
+  var f =
+      goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT ? function(eventObject) {
+        return proxyCallbackFunction.call(f.src, f.listener, eventObject);
+      } : function(eventObject) {
+        var v = proxyCallbackFunction.call(f.src, f.listener, eventObject);
+        // NOTE(chrishenry): In IE, we hack in a capture phase. However, if
+        // there is inline event handler which tries to prevent default (for
+        // example <a href="..." onclick="return false">...</a>) in a
+        // descendant element, the prevent default will be overridden
+        // by this listener if this listener were to return true. Hence, we
+        // return undefined.
+        if (!v) return v;
+      };
+  return f;
+};
+
+
+/**
+ * Adds an event listener for a specific event on a native event
+ * target (such as a DOM element) or an object that has implemented
+ * {@link goog.events.Listenable}. After the event has fired the event
+ * listener is removed from the target.
+ *
+ * If an existing listener already exists, listenOnce will do
+ * nothing. In particular, if the listener was previously registered
+ * via listen(), listenOnce() will not turn the listener into a
+ * one-off listener. Similarly, if there is already an existing
+ * one-off listener, listenOnce does not modify the listeners (it is
+ * still a once listener).
+ *
+ * @param {EventTarget|goog.events.Listenable} src The node to listen
+ *     to events on.
+ * @param {string|Array<string>|
+ *     !goog.events.EventId<EVENTOBJ>|!Array<!goog.events.EventId<EVENTOBJ>>}
+ *     type Event type or array of event types.
+ * @param {function(this:T, EVENTOBJ):?|{handleEvent:function(?):?}|null}
+ *     listener Callback method.
+ * @param {boolean=} opt_capt Fire in capture phase?.
+ * @param {T=} opt_handler Element in whose scope to call the listener.
+ * @return {goog.events.Key} Unique key for the listener.
+ * @template T,EVENTOBJ
+ */
+goog.events.listenOnce = function(src, type, listener, opt_capt, opt_handler) {
+  if (goog.isArray(type)) {
+    for (var i = 0; i < type.length; i++) {
+      goog.events.listenOnce(src, type[i], listener, opt_capt, opt_handler);
+    }
+    return null;
+  }
+
+  listener = goog.events.wrapListener(listener);
+  if (goog.events.Listenable.isImplementedBy(src)) {
+    return src.listenOnce(
+        /** @type {string|!goog.events.EventId} */ (type), listener, opt_capt,
+        opt_handler);
+  } else {
+    return goog.events.listen_(
+        /** @type {!EventTarget} */ (src),
+        /** @type {string|!goog.events.EventId} */ (type), listener,
+        /* callOnce */ true, opt_capt, opt_handler);
+  }
+};
+
+
+/**
+ * Adds an event listener with a specific event wrapper on a DOM Node or an
+ * object that has implemented {@link goog.events.Listenable}. A listener can
+ * only be added once to an object.
+ *
+ * @param {EventTarget|goog.events.Listenable} src The target to
+ *     listen to events on.
+ * @param {goog.events.EventWrapper} wrapper Event wrapper to use.
+ * @param {function(this:T, ?):?|{handleEvent:function(?):?}|null} listener
+ *     Callback method, or an object with a handleEvent function.
+ * @param {boolean=} opt_capt Whether to fire in capture phase (defaults to
+ *     false).
+ * @param {T=} opt_handler Element in whose scope to call the listener.
+ * @template T
+ */
+goog.events.listenWithWrapper = function(
+    src, wrapper, listener, opt_capt, opt_handler) {
+  wrapper.listen(src, listener, opt_capt, opt_handler);
+};
+
+
+/**
+ * Removes an event listener which was added with listen().
+ *
+ * @param {EventTarget|goog.events.Listenable} src The target to stop
+ *     listening to events on.
+ * @param {string|Array<string>|
+ *     !goog.events.EventId<EVENTOBJ>|!Array<!goog.events.EventId<EVENTOBJ>>}
+ *     type Event type or array of event types to unlisten to.
+ * @param {function(?):?|{handleEvent:function(?):?}|null} listener The
+ *     listener function to remove.
+ * @param {boolean=} opt_capt In DOM-compliant browsers, this determines
+ *     whether the listener is fired during the capture or bubble phase of the
+ *     event.
+ * @param {Object=} opt_handler Element in whose scope to call the listener.
+ * @return {?boolean} indicating whether the listener was there to remove.
+ * @template EVENTOBJ
+ */
+goog.events.unlisten = function(src, type, listener, opt_capt, opt_handler) {
+  if (goog.isArray(type)) {
+    for (var i = 0; i < type.length; i++) {
+      goog.events.unlisten(src, type[i], listener, opt_capt, opt_handler);
+    }
+    return null;
+  }
+
+  listener = goog.events.wrapListener(listener);
+  if (goog.events.Listenable.isImplementedBy(src)) {
+    return src.unlisten(
+        /** @type {string|!goog.events.EventId} */ (type), listener, opt_capt,
+        opt_handler);
+  }
+
+  if (!src) {
+    // TODO(chrishenry): We should tighten the API to only accept
+    // non-null objects, or add an assertion here.
+    return false;
+  }
+
+  var capture = !!opt_capt;
+  var listenerMap = goog.events.getListenerMap_(
+      /** @type {!EventTarget} */ (src));
+  if (listenerMap) {
+    var listenerObj = listenerMap.getListener(
+        /** @type {string|!goog.events.EventId} */ (type), listener, capture,
+        opt_handler);
+    if (listenerObj) {
+      return goog.events.unlistenByKey(listenerObj);
+    }
+  }
+
+  return false;
+};
+
+
+/**
+ * Removes an event listener which was added with listen() by the key
+ * returned by listen().
+ *
+ * @param {goog.events.Key} key The key returned by listen() for this
+ *     event listener.
+ * @return {boolean} indicating whether the listener was there to remove.
+ */
+goog.events.unlistenByKey = function(key) {
+  // TODO(chrishenry): Remove this check when tests that rely on this
+  // are fixed.
+  if (goog.isNumber(key)) {
+    return false;
+  }
+
+  var listener = key;
+  if (!listener || listener.removed) {
+    return false;
+  }
+
+  var src = listener.src;
+  if (goog.events.Listenable.isImplementedBy(src)) {
+    return /** @type {!goog.events.Listenable} */ (src).unlistenByKey(listener);
+  }
+
+  var type = listener.type;
+  var proxy = listener.proxy;
+  if (src.removeEventListener) {
+    src.removeEventListener(type, proxy, listener.capture);
+  } else if (src.detachEvent) {
+    src.detachEvent(goog.events.getOnString_(type), proxy);
+  }
+  goog.events.listenerCountEstimate_--;
+
+  var listenerMap = goog.events.getListenerMap_(
+      /** @type {!EventTarget} */ (src));
+  // TODO(chrishenry): Try to remove this conditional and execute the
+  // first branch always. This should be safe.
+  if (listenerMap) {
+    listenerMap.removeByKey(listener);
+    if (listenerMap.getTypeCount() == 0) {
+      // Null the src, just because this is simple to do (and useful
+      // for IE <= 7).
+      listenerMap.src = null;
+      // We don't use delete here because IE does not allow delete
+      // on a window object.
+      src[goog.events.LISTENER_MAP_PROP_] = null;
+    }
+  } else {
+    listener.markAsRemoved();
+  }
+
+  return true;
+};
+
+
+/**
+ * Removes an event listener which was added with listenWithWrapper().
+ *
+ * @param {EventTarget|goog.events.Listenable} src The target to stop
+ *     listening to events on.
+ * @param {goog.events.EventWrapper} wrapper Event wrapper to use.
+ * @param {function(?):?|{handleEvent:function(?):?}|null} listener The
+ *     listener function to remove.
+ * @param {boolean=} opt_capt In DOM-compliant browsers, this determines
+ *     whether the listener is fired during the capture or bubble phase of the
+ *     event.
+ * @param {Object=} opt_handler Element in whose scope to call the listener.
+ */
+goog.events.unlistenWithWrapper = function(
+    src, wrapper, listener, opt_capt, opt_handler) {
+  wrapper.unlisten(src, listener, opt_capt, opt_handler);
+};
+
+
+/**
+ * Removes all listeners from an object. You can also optionally
+ * remove listeners of a particular type.
+ *
+ * @param {Object|undefined} obj Object to remove listeners from. Must be an
+ *     EventTarget or a goog.events.Listenable.
+ * @param {string|!goog.events.EventId=} opt_type Type of event to remove.
+ *     Default is all types.
+ * @return {number} Number of listeners removed.
+ */
+goog.events.removeAll = function(obj, opt_type) {
+  // TODO(chrishenry): Change the type of obj to
+  // (!EventTarget|!goog.events.Listenable).
+
+  if (!obj) {
+    return 0;
+  }
+
+  if (goog.events.Listenable.isImplementedBy(obj)) {
+    return /** @type {?} */ (obj).removeAllListeners(opt_type);
+  }
+
+  var listenerMap = goog.events.getListenerMap_(
+      /** @type {!EventTarget} */ (obj));
+  if (!listenerMap) {
+    return 0;
+  }
+
+  var count = 0;
+  var typeStr = opt_type && opt_type.toString();
+  for (var type in listenerMap.listeners) {
+    if (!typeStr || type == typeStr) {
+      // Clone so that we don't need to worry about unlistenByKey
+      // changing the content of the ListenerMap.
+      var listeners = listenerMap.listeners[type].concat();
+      for (var i = 0; i < listeners.length; ++i) {
+        if (goog.events.unlistenByKey(listeners[i])) {
+          ++count;
+        }
+      }
+    }
+  }
+  return count;
+};
+
+
+/**
+ * Gets the listeners for a given object, type and capture phase.
+ *
+ * @param {Object} obj Object to get listeners for.
+ * @param {string|!goog.events.EventId} type Event type.
+ * @param {boolean} capture Capture phase?.
+ * @return {Array<!goog.events.Listener>} Array of listener objects.
+ */
+goog.events.getListeners = function(obj, type, capture) {
+  if (goog.events.Listenable.isImplementedBy(obj)) {
+    return /** @type {!goog.events.Listenable} */ (obj).getListeners(
+        type, capture);
+  } else {
+    if (!obj) {
+      // TODO(chrishenry): We should tighten the API to accept
+      // !EventTarget|goog.events.Listenable, and add an assertion here.
+      return [];
+    }
+
+    var listenerMap = goog.events.getListenerMap_(
+        /** @type {!EventTarget} */ (obj));
+    return listenerMap ? listenerMap.getListeners(type, capture) : [];
+  }
+};
+
+
+/**
+ * Gets the goog.events.Listener for the event or null if no such listener is
+ * in use.
+ *
+ * @param {EventTarget|goog.events.Listenable} src The target from
+ *     which to get listeners.
+ * @param {?string|!goog.events.EventId<EVENTOBJ>} type The type of the event.
+ * @param {function(EVENTOBJ):?|{handleEvent:function(?):?}|null} listener The
+ *     listener function to get.
+ * @param {boolean=} opt_capt In DOM-compliant browsers, this determines
+ *                            whether the listener is fired during the
+ *                            capture or bubble phase of the event.
+ * @param {Object=} opt_handler Element in whose scope to call the listener.
+ * @return {goog.events.ListenableKey} the found listener or null if not found.
+ * @template EVENTOBJ
+ */
+goog.events.getListener = function(src, type, listener, opt_capt, opt_handler) {
+  // TODO(chrishenry): Change type from ?string to string, or add assertion.
+  type = /** @type {string} */ (type);
+  listener = goog.events.wrapListener(listener);
+  var capture = !!opt_capt;
+  if (goog.events.Listenable.isImplementedBy(src)) {
+    return src.getListener(type, listener, capture, opt_handler);
+  }
+
+  if (!src) {
+    // TODO(chrishenry): We should tighten the API to only accept
+    // non-null objects, or add an assertion here.
+    return null;
+  }
+
+  var listenerMap = goog.events.getListenerMap_(
+      /** @type {!EventTarget} */ (src));
+  if (listenerMap) {
+    return listenerMap.getListener(type, listener, capture, opt_handler);
+  }
+  return null;
+};
+
+
+/**
+ * Returns whether an event target has any active listeners matching the
+ * specified signature. If either the type or capture parameters are
+ * unspecified, the function will match on the remaining criteria.
+ *
+ * @param {EventTarget|goog.events.Listenable} obj Target to get
+ *     listeners for.
+ * @param {string|!goog.events.EventId=} opt_type Event type.
+ * @param {boolean=} opt_capture Whether to check for capture or bubble-phase
+ *     listeners.
+ * @return {boolean} Whether an event target has one or more listeners matching
+ *     the requested type and/or capture phase.
+ */
+goog.events.hasListener = function(obj, opt_type, opt_capture) {
+  if (goog.events.Listenable.isImplementedBy(obj)) {
+    return obj.hasListener(opt_type, opt_capture);
+  }
+
+  var listenerMap = goog.events.getListenerMap_(
+      /** @type {!EventTarget} */ (obj));
+  return !!listenerMap && listenerMap.hasListener(opt_type, opt_capture);
+};
+
+
+/**
+ * Provides a nice string showing the normalized event objects public members
+ * @param {Object} e Event Object.
+ * @return {string} String of the public members of the normalized event object.
+ */
+goog.events.expose = function(e) {
+  var str = [];
+  for (var key in e) {
+    if (e[key] && e[key].id) {
+      str.push(key + ' = ' + e[key] + ' (' + e[key].id + ')');
+    } else {
+      str.push(key + ' = ' + e[key]);
+    }
+  }
+  return str.join('\n');
+};
+
+
+/**
+ * Returns a string with on prepended to the specified type. This is used for IE
+ * which expects "on" to be prepended. This function caches the string in order
+ * to avoid extra allocations in steady state.
+ * @param {string} type Event type.
+ * @return {string} The type string with 'on' prepended.
+ * @private
+ */
+goog.events.getOnString_ = function(type) {
+  if (type in goog.events.onStringMap_) {
+    return goog.events.onStringMap_[type];
+  }
+  return goog.events.onStringMap_[type] = goog.events.onString_ + type;
+};
+
+
+/**
+ * Fires an object's listeners of a particular type and phase
+ *
+ * @param {Object} obj Object whose listeners to call.
+ * @param {string|!goog.events.EventId} type Event type.
+ * @param {boolean} capture Which event phase.
+ * @param {Object} eventObject Event object to be passed to listener.
+ * @return {boolean} True if all listeners returned true else false.
+ */
+goog.events.fireListeners = function(obj, type, capture, eventObject) {
+  if (goog.events.Listenable.isImplementedBy(obj)) {
+    return /** @type {!goog.events.Listenable} */ (obj).fireListeners(
+        type, capture, eventObject);
+  }
+
+  return goog.events.fireListeners_(obj, type, capture, eventObject);
+};
+
+
+/**
+ * Fires an object's listeners of a particular type and phase.
+ * @param {Object} obj Object whose listeners to call.
+ * @param {string|!goog.events.EventId} type Event type.
+ * @param {boolean} capture Which event phase.
+ * @param {Object} eventObject Event object to be passed to listener.
+ * @return {boolean} True if all listeners returned true else false.
+ * @private
+ */
+goog.events.fireListeners_ = function(obj, type, capture, eventObject) {
+  /** @type {boolean} */
+  var retval = true;
+
+  var listenerMap = goog.events.getListenerMap_(
+      /** @type {EventTarget} */ (obj));
+  if (listenerMap) {
+    // TODO(chrishenry): Original code avoids array creation when there
+    // is no listener, so we do the same. If this optimization turns
+    // out to be not required, we can replace this with
+    // listenerMap.getListeners(type, capture) instead, which is simpler.
+    var listenerArray = listenerMap.listeners[type.toString()];
+    if (listenerArray) {
+      listenerArray = listenerArray.concat();
+      for (var i = 0; i < listenerArray.length; i++) {
+        var listener = listenerArray[i];
+        // We might not have a listener if the listener was removed.
+        if (listener && listener.capture == capture && !listener.removed) {
+          var result = goog.events.fireListener(listener, eventObject);
+          retval = retval && (result !== false);
+        }
+      }
+    }
+  }
+  return retval;
+};
+
+
+/**
+ * Fires a listener with a set of arguments
+ *
+ * @param {goog.events.Listener} listener The listener object to call.
+ * @param {Object} eventObject The event object to pass to the listener.
+ * @return {boolean} Result of listener.
+ */
+goog.events.fireListener = function(listener, eventObject) {
+  var listenerFn = listener.listener;
+  var listenerHandler = listener.handler || listener.src;
+
+  if (listener.callOnce) {
+    goog.events.unlistenByKey(listener);
+  }
+  return listenerFn.call(listenerHandler, eventObject);
+};
+
+
+/**
+ * Gets the total number of listeners currently in the system.
+ * @return {number} Number of listeners.
+ * @deprecated This returns estimated count, now that Closure no longer
+ * stores a central listener registry. We still return an estimation
+ * to keep existing listener-related tests passing. In the near future,
+ * this function will be removed.
+ */
+goog.events.getTotalListenerCount = function() {
+  return goog.events.listenerCountEstimate_;
+};
+
+
+/**
+ * Dispatches an event (or event like object) and calls all listeners
+ * listening for events of this type. The type of the event is decided by the
+ * type property on the event object.
+ *
+ * If any of the listeners returns false OR calls preventDefault then this
+ * function will return false.  If one of the capture listeners calls
+ * stopPropagation, then the bubble listeners won't fire.
+ *
+ * @param {goog.events.Listenable} src The event target.
+ * @param {goog.events.EventLike} e Event object.
+ * @return {boolean} If anyone called preventDefault on the event object (or
+ *     if any of the handlers returns false) this will also return false.
+ *     If there are no handlers, or if all handlers return true, this returns
+ *     true.
+ */
+goog.events.dispatchEvent = function(src, e) {
+  goog.asserts.assert(
+      goog.events.Listenable.isImplementedBy(src),
+      'Can not use goog.events.dispatchEvent with ' +
+          'non-goog.events.Listenable instance.');
+  return src.dispatchEvent(e);
+};
+
+
+/**
+ * Installs exception protection for the browser event entry point using the
+ * given error handler.
+ *
+ * @param {goog.debug.ErrorHandler} errorHandler Error handler with which to
+ *     protect the entry point.
+ */
+goog.events.protectBrowserEventEntryPoint = function(errorHandler) {
+  goog.events.handleBrowserEvent_ =
+      errorHandler.protectEntryPoint(goog.events.handleBrowserEvent_);
+};
+
+
+/**
+ * Handles an event and dispatches it to the correct listeners. This
+ * function is a proxy for the real listener the user specified.
+ *
+ * @param {goog.events.Listener} listener The listener object.
+ * @param {Event=} opt_evt Optional event object that gets passed in via the
+ *     native event handlers.
+ * @return {boolean} Result of the event handler.
+ * @this {EventTarget} The object or Element that fired the event.
+ * @private
+ */
+goog.events.handleBrowserEvent_ = function(listener, opt_evt) {
+  if (listener.removed) {
+    return true;
+  }
+
+  // Synthesize event propagation if the browser does not support W3C
+  // event model.
+  if (!goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT) {
+    var ieEvent = opt_evt ||
+        /** @type {Event} */ (goog.getObjectByName('window.event'));
+    var evt = new goog.events.BrowserEvent(ieEvent, this);
+    /** @type {boolean} */
+    var retval = true;
+
+    if (goog.events.CAPTURE_SIMULATION_MODE ==
+        goog.events.CaptureSimulationMode.ON) {
+      // If we have not marked this event yet, we should perform capture
+      // simulation.
+      if (!goog.events.isMarkedIeEvent_(ieEvent)) {
+        goog.events.markIeEvent_(ieEvent);
+
+        var ancestors = [];
+        for (var parent = evt.currentTarget; parent;
+             parent = parent.parentNode) {
+          ancestors.push(parent);
+        }
+
+        // Fire capture listeners.
+        var type = listener.type;
+        for (var i = ancestors.length - 1; !evt.propagationStopped_ && i >= 0;
+             i--) {
+          evt.currentTarget = ancestors[i];
+          var result =
+              goog.events.fireListeners_(ancestors[i], type, true, evt);
+          retval = retval && result;
+        }
+
+        // Fire bubble listeners.
+        //
+        // We can technically rely on IE to perform bubble event
+        // propagation. However, it turns out that IE fires events in
+        // opposite order of attachEvent registration, which broke
+        // some code and tests that rely on the order. (While W3C DOM
+        // Level 2 Events TR leaves the event ordering unspecified,
+        // modern browsers and W3C DOM Level 3 Events Working Draft
+        // actually specify the order as the registration order.)
+        for (var i = 0; !evt.propagationStopped_ && i < ancestors.length; i++) {
+          evt.currentTarget = ancestors[i];
+          var result =
+              goog.events.fireListeners_(ancestors[i], type, false, evt);
+          retval = retval && result;
+        }
+      }
+    } else {
+      retval = goog.events.fireListener(listener, evt);
+    }
+    return retval;
+  }
+
+  // Otherwise, simply fire the listener.
+  return goog.events.fireListener(
+      listener, new goog.events.BrowserEvent(opt_evt, this));
+};
+
+
+/**
+ * This is used to mark the IE event object so we do not do the Closure pass
+ * twice for a bubbling event.
+ * @param {Event} e The IE browser event.
+ * @private
+ */
+goog.events.markIeEvent_ = function(e) {
+  // Only the keyCode and the returnValue can be changed. We use keyCode for
+  // non keyboard events.
+  // event.returnValue is a bit more tricky. It is undefined by default. A
+  // boolean false prevents the default action. In a window.onbeforeunload and
+  // the returnValue is non undefined it will be alerted. However, we will only
+  // modify the returnValue for keyboard events. We can get a problem if non
+  // closure events sets the keyCode or the returnValue
+
+  var useReturnValue = false;
+
+  if (e.keyCode == 0) {
+    // We cannot change the keyCode in case that srcElement is input[type=file].
+    // We could test that that is the case but that would allocate 3 objects.
+    // If we use try/catch we will only allocate extra objects in the case of a
+    // failure.
+    /** @preserveTry */
+    try {
+      e.keyCode = -1;
+      return;
+    } catch (ex) {
+      useReturnValue = true;
+    }
+  }
+
+  if (useReturnValue ||
+      /** @type {boolean|undefined} */ (e.returnValue) == undefined) {
+    e.returnValue = true;
+  }
+};
+
+
+/**
+ * This is used to check if an IE event has already been handled by the Closure
+ * system so we do not do the Closure pass twice for a bubbling event.
+ * @param {Event} e  The IE browser event.
+ * @return {boolean} True if the event object has been marked.
+ * @private
+ */
+goog.events.isMarkedIeEvent_ = function(e) {
+  return e.keyCode < 0 || e.returnValue != undefined;
+};
+
+
+/**
+ * Counter to create unique event ids.
+ * @private {number}
+ */
+goog.events.uniqueIdCounter_ = 0;
+
+
+/**
+ * Creates a unique event id.
+ *
+ * @param {string} identifier The identifier.
+ * @return {string} A unique identifier.
+ * @idGenerator {unique}
+ */
+goog.events.getUniqueId = function(identifier) {
+  return identifier + '_' + goog.events.uniqueIdCounter_++;
+};
+
+
+/**
+ * @param {EventTarget} src The source object.
+ * @return {goog.events.ListenerMap} A listener map for the given
+ *     source object, or null if none exists.
+ * @private
+ */
+goog.events.getListenerMap_ = function(src) {
+  var listenerMap = src[goog.events.LISTENER_MAP_PROP_];
+  // IE serializes the property as well (e.g. when serializing outer
+  // HTML). So we must check that the value is of the correct type.
+  return listenerMap instanceof goog.events.ListenerMap ? listenerMap : null;
+};
+
+
+/**
+ * Expando property for listener function wrapper for Object with
+ * handleEvent.
+ * @private @const {string}
+ */
+goog.events.LISTENER_WRAPPER_PROP_ =
+    '__closure_events_fn_' + ((Math.random() * 1e9) >>> 0);
+
+
+/**
+ * @param {Object|Function} listener The listener function or an
+ *     object that contains handleEvent method.
+ * @return {!Function} Either the original function or a function that
+ *     calls obj.handleEvent. If the same listener is passed to this
+ *     function more than once, the same function is guaranteed to be
+ *     returned.
+ */
+goog.events.wrapListener = function(listener) {
+  goog.asserts.assert(listener, 'Listener can not be null.');
+
+  if (goog.isFunction(listener)) {
+    return listener;
+  }
+
+  goog.asserts.assert(
+      listener.handleEvent, 'An object listener must have handleEvent method.');
+  if (!listener[goog.events.LISTENER_WRAPPER_PROP_]) {
+    listener[goog.events.LISTENER_WRAPPER_PROP_] = function(e) {
+      return /** @type {?} */ (listener).handleEvent(e);
+    };
+  }
+  return listener[goog.events.LISTENER_WRAPPER_PROP_];
+};
+
+
+// Register the browser event handler as an entry point, so that
+// it can be monitored for exception handling, etc.
+goog.debug.entryPointRegistry.register(
+    /**
+     * @param {function(!Function): !Function} transformer The transforming
+     *     function.
+     */
+    function(transformer) {
+      goog.events.handleBrowserEvent_ =
+          transformer(goog.events.handleBrowserEvent_);
+    });

viz/out/goog/events/eventtype.js

@@ -0,0 +1,239 @@
+// Copyright 2010 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Event Types.
+ *
+ * @author arv@google.com (Erik Arvidsson)
+ */
+
+
+goog.provide('goog.events.EventType');
+
+goog.require('goog.userAgent');
+
+
+/**
+ * Returns a prefixed event name for the current browser.
+ * @param {string} eventName The name of the event.
+ * @return {string} The prefixed event name.
+ * @suppress {missingRequire|missingProvide}
+ * @private
+ */
+goog.events.getVendorPrefixedName_ = function(eventName) {
+  return goog.userAgent.WEBKIT ?
+      'webkit' + eventName :
+      (goog.userAgent.OPERA ? 'o' + eventName.toLowerCase() :
+                              eventName.toLowerCase());
+};
+
+
+/**
+ * Constants for event names.
+ * @enum {string}
+ */
+goog.events.EventType = {
+  // Mouse events
+  CLICK: 'click',
+  RIGHTCLICK: 'rightclick',
+  DBLCLICK: 'dblclick',
+  MOUSEDOWN: 'mousedown',
+  MOUSEUP: 'mouseup',
+  MOUSEOVER: 'mouseover',
+  MOUSEOUT: 'mouseout',
+  MOUSEMOVE: 'mousemove',
+  MOUSEENTER: 'mouseenter',
+  MOUSELEAVE: 'mouseleave',
+  // Select start is non-standard.
+  // See http://msdn.microsoft.com/en-us/library/ie/ms536969(v=vs.85).aspx.
+  SELECTSTART: 'selectstart',  // IE, Safari, Chrome
+
+  // Wheel events
+  // http://www.w3.org/TR/DOM-Level-3-Events/#events-wheelevents
+  WHEEL: 'wheel',
+
+  // Key events
+  KEYPRESS: 'keypress',
+  KEYDOWN: 'keydown',
+  KEYUP: 'keyup',
+
+  // Focus
+  BLUR: 'blur',
+  FOCUS: 'focus',
+  DEACTIVATE: 'deactivate',  // IE only
+  // NOTE: The following two events are not stable in cross-browser usage.
+  //     WebKit and Opera implement DOMFocusIn/Out.
+  //     IE implements focusin/out.
+  //     Gecko implements neither see bug at
+  //     https://bugzilla.mozilla.org/show_bug.cgi?id=396927.
+  // The DOM Events Level 3 Draft deprecates DOMFocusIn in favor of focusin:
+  //     http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html
+  // You can use FOCUS in Capture phase until implementations converge.
+  FOCUSIN: goog.userAgent.IE ? 'focusin' : 'DOMFocusIn',
+  FOCUSOUT: goog.userAgent.IE ? 'focusout' : 'DOMFocusOut',
+
+  // Forms
+  CHANGE: 'change',
+  RESET: 'reset',
+  SELECT: 'select',
+  SUBMIT: 'submit',
+  INPUT: 'input',
+  PROPERTYCHANGE: 'propertychange',  // IE only
+
+  // Drag and drop
+  DRAGSTART: 'dragstart',
+  DRAG: 'drag',
+  DRAGENTER: 'dragenter',
+  DRAGOVER: 'dragover',
+  DRAGLEAVE: 'dragleave',
+  DROP: 'drop',
+  DRAGEND: 'dragend',
+
+  // Touch events
+  // Note that other touch events exist, but we should follow the W3C list here.
+  // http://www.w3.org/TR/touch-events/#list-of-touchevent-types
+  TOUCHSTART: 'touchstart',
+  TOUCHMOVE: 'touchmove',
+  TOUCHEND: 'touchend',
+  TOUCHCANCEL: 'touchcancel',
+
+  // Misc
+  BEFOREUNLOAD: 'beforeunload',
+  CONSOLEMESSAGE: 'consolemessage',
+  CONTEXTMENU: 'contextmenu',
+  DOMCONTENTLOADED: 'DOMContentLoaded',
+  ERROR: 'error',
+  HELP: 'help',
+  LOAD: 'load',
+  LOSECAPTURE: 'losecapture',
+  ORIENTATIONCHANGE: 'orientationchange',
+  READYSTATECHANGE: 'readystatechange',
+  RESIZE: 'resize',
+  SCROLL: 'scroll',
+  TIMEUPDATE: 'timeupdate',
+  UNLOAD: 'unload',
+
+  // HTML 5 History events
+  // See http://www.w3.org/TR/html5/browsers.html#event-definitions-0
+  HASHCHANGE: 'hashchange',
+  PAGEHIDE: 'pagehide',
+  PAGESHOW: 'pageshow',
+  POPSTATE: 'popstate',
+
+  // Copy and Paste
+  // Support is limited. Make sure it works on your favorite browser
+  // before using.
+  // http://www.quirksmode.org/dom/events/cutcopypaste.html
+  COPY: 'copy',
+  PASTE: 'paste',
+  CUT: 'cut',
+  BEFORECOPY: 'beforecopy',
+  BEFORECUT: 'beforecut',
+  BEFOREPASTE: 'beforepaste',
+
+  // HTML5 online/offline events.
+  // http://www.w3.org/TR/offline-webapps/#related
+  ONLINE: 'online',
+  OFFLINE: 'offline',
+
+  // HTML 5 worker events
+  MESSAGE: 'message',
+  CONNECT: 'connect',
+
+  // CSS animation events.
+  /** @suppress {missingRequire} */
+  ANIMATIONSTART: goog.events.getVendorPrefixedName_('AnimationStart'),
+  /** @suppress {missingRequire} */
+  ANIMATIONEND: goog.events.getVendorPrefixedName_('AnimationEnd'),
+  /** @suppress {missingRequire} */
+  ANIMATIONITERATION: goog.events.getVendorPrefixedName_('AnimationIteration'),
+
+  // CSS transition events. Based on the browser support described at:
+  // https://developer.mozilla.org/en/css/css_transitions#Browser_compatibility
+  /** @suppress {missingRequire} */
+  TRANSITIONEND: goog.events.getVendorPrefixedName_('TransitionEnd'),
+
+  // W3C Pointer Events
+  // http://www.w3.org/TR/pointerevents/
+  POINTERDOWN: 'pointerdown',
+  POINTERUP: 'pointerup',
+  POINTERCANCEL: 'pointercancel',
+  POINTERMOVE: 'pointermove',
+  POINTEROVER: 'pointerover',
+  POINTEROUT: 'pointerout',
+  POINTERENTER: 'pointerenter',
+  POINTERLEAVE: 'pointerleave',
+  GOTPOINTERCAPTURE: 'gotpointercapture',
+  LOSTPOINTERCAPTURE: 'lostpointercapture',
+
+  // IE specific events.
+  // See http://msdn.microsoft.com/en-us/library/ie/hh772103(v=vs.85).aspx
+  // Note: these events will be supplanted in IE11.
+  MSGESTURECHANGE: 'MSGestureChange',
+  MSGESTUREEND: 'MSGestureEnd',
+  MSGESTUREHOLD: 'MSGestureHold',
+  MSGESTURESTART: 'MSGestureStart',
+  MSGESTURETAP: 'MSGestureTap',
+  MSGOTPOINTERCAPTURE: 'MSGotPointerCapture',
+  MSINERTIASTART: 'MSInertiaStart',
+  MSLOSTPOINTERCAPTURE: 'MSLostPointerCapture',
+  MSPOINTERCANCEL: 'MSPointerCancel',
+  MSPOINTERDOWN: 'MSPointerDown',
+  MSPOINTERENTER: 'MSPointerEnter',
+  MSPOINTERHOVER: 'MSPointerHover',
+  MSPOINTERLEAVE: 'MSPointerLeave',
+  MSPOINTERMOVE: 'MSPointerMove',
+  MSPOINTEROUT: 'MSPointerOut',
+  MSPOINTEROVER: 'MSPointerOver',
+  MSPOINTERUP: 'MSPointerUp',
+
+  // Native IMEs/input tools events.
+  TEXT: 'text',
+  TEXTINPUT: 'textInput',
+  COMPOSITIONSTART: 'compositionstart',
+  COMPOSITIONUPDATE: 'compositionupdate',
+  COMPOSITIONEND: 'compositionend',
+
+  // Webview tag events
+  // See http://developer.chrome.com/dev/apps/webview_tag.html
+  EXIT: 'exit',
+  LOADABORT: 'loadabort',
+  LOADCOMMIT: 'loadcommit',
+  LOADREDIRECT: 'loadredirect',
+  LOADSTART: 'loadstart',
+  LOADSTOP: 'loadstop',
+  RESPONSIVE: 'responsive',
+  SIZECHANGED: 'sizechanged',
+  UNRESPONSIVE: 'unresponsive',
+
+  // HTML5 Page Visibility API.  See details at
+  // {@code goog.labs.dom.PageVisibilityMonitor}.
+  VISIBILITYCHANGE: 'visibilitychange',
+
+  // LocalStorage event.
+  STORAGE: 'storage',
+
+  // DOM Level 2 mutation events (deprecated).
+  DOMSUBTREEMODIFIED: 'DOMSubtreeModified',
+  DOMNODEINSERTED: 'DOMNodeInserted',
+  DOMNODEREMOVED: 'DOMNodeRemoved',
+  DOMNODEREMOVEDFROMDOCUMENT: 'DOMNodeRemovedFromDocument',
+  DOMNODEINSERTEDINTODOCUMENT: 'DOMNodeInsertedIntoDocument',
+  DOMATTRMODIFIED: 'DOMAttrModified',
+  DOMCHARACTERDATAMODIFIED: 'DOMCharacterDataModified',
+
+  // Print events.
+  BEFOREPRINT: 'beforeprint',
+  AFTERPRINT: 'afterprint'
+};

viz/out/goog/events/listenable.js

@@ -0,0 +1,338 @@
+// Copyright 2012 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview An interface for a listenable JavaScript object.
+ * @author chrishenry@google.com (Chris Henry)
+ */
+
+goog.provide('goog.events.Listenable');
+goog.provide('goog.events.ListenableKey');
+
+/** @suppress {extraRequire} */
+goog.require('goog.events.EventId');
+
+goog.forwardDeclare('goog.events.EventLike');
+goog.forwardDeclare('goog.events.EventTarget');
+
+
+
+/**
+ * A listenable interface. A listenable is an object with the ability
+ * to dispatch/broadcast events to "event listeners" registered via
+ * listen/listenOnce.
+ *
+ * The interface allows for an event propagation mechanism similar
+ * to one offered by native browser event targets, such as
+ * capture/bubble mechanism, stopping propagation, and preventing
+ * default actions. Capture/bubble mechanism depends on the ancestor
+ * tree constructed via {@code #getParentEventTarget}; this tree
+ * must be directed acyclic graph. The meaning of default action(s)
+ * in preventDefault is specific to a particular use case.
+ *
+ * Implementations that do not support capture/bubble or can not have
+ * a parent listenable can simply not implement any ability to set the
+ * parent listenable (and have {@code #getParentEventTarget} return
+ * null).
+ *
+ * Implementation of this class can be used with or independently from
+ * goog.events.
+ *
+ * Implementation must call {@code #addImplementation(implClass)}.
+ *
+ * @interface
+ * @see goog.events
+ * @see http://www.w3.org/TR/DOM-Level-2-Events/events.html
+ */
+goog.events.Listenable = function() {};
+
+
+/**
+ * An expando property to indicate that an object implements
+ * goog.events.Listenable.
+ *
+ * See addImplementation/isImplementedBy.
+ *
+ * @type {string}
+ * @const
+ */
+goog.events.Listenable.IMPLEMENTED_BY_PROP =
+    'closure_listenable_' + ((Math.random() * 1e6) | 0);
+
+
+/**
+ * Marks a given class (constructor) as an implementation of
+ * Listenable, do that we can query that fact at runtime. The class
+ * must have already implemented the interface.
+ * @param {!Function} cls The class constructor. The corresponding
+ *     class must have already implemented the interface.
+ */
+goog.events.Listenable.addImplementation = function(cls) {
+  cls.prototype[goog.events.Listenable.IMPLEMENTED_BY_PROP] = true;
+};
+
+
+/**
+ * @param {Object} obj The object to check.
+ * @return {boolean} Whether a given instance implements Listenable. The
+ *     class/superclass of the instance must call addImplementation.
+ */
+goog.events.Listenable.isImplementedBy = function(obj) {
+  return !!(obj && obj[goog.events.Listenable.IMPLEMENTED_BY_PROP]);
+};
+
+
+/**
+ * Adds an event listener. A listener can only be added once to an
+ * object and if it is added again the key for the listener is
+ * returned. Note that if the existing listener is a one-off listener
+ * (registered via listenOnce), it will no longer be a one-off
+ * listener after a call to listen().
+ *
+ * @param {string|!goog.events.EventId<EVENTOBJ>} type The event type id.
+ * @param {function(this:SCOPE, EVENTOBJ):(boolean|undefined)} listener Callback
+ *     method.
+ * @param {boolean=} opt_useCapture Whether to fire in capture phase
+ *     (defaults to false).
+ * @param {SCOPE=} opt_listenerScope Object in whose scope to call the
+ *     listener.
+ * @return {!goog.events.ListenableKey} Unique key for the listener.
+ * @template SCOPE,EVENTOBJ
+ */
+goog.events.Listenable.prototype.listen;
+
+
+/**
+ * Adds an event listener that is removed automatically after the
+ * listener fired once.
+ *
+ * If an existing listener already exists, listenOnce will do
+ * nothing. In particular, if the listener was previously registered
+ * via listen(), listenOnce() will not turn the listener into a
+ * one-off listener. Similarly, if there is already an existing
+ * one-off listener, listenOnce does not modify the listeners (it is
+ * still a once listener).
+ *
+ * @param {string|!goog.events.EventId<EVENTOBJ>} type The event type id.
+ * @param {function(this:SCOPE, EVENTOBJ):(boolean|undefined)} listener Callback
+ *     method.
+ * @param {boolean=} opt_useCapture Whether to fire in capture phase
+ *     (defaults to false).
+ * @param {SCOPE=} opt_listenerScope Object in whose scope to call the
+ *     listener.
+ * @return {!goog.events.ListenableKey} Unique key for the listener.
+ * @template SCOPE,EVENTOBJ
+ */
+goog.events.Listenable.prototype.listenOnce;
+
+
+/**
+ * Removes an event listener which was added with listen() or listenOnce().
+ *
+ * @param {string|!goog.events.EventId<EVENTOBJ>} type The event type id.
+ * @param {function(this:SCOPE, EVENTOBJ):(boolean|undefined)} listener Callback
+ *     method.
+ * @param {boolean=} opt_useCapture Whether to fire in capture phase
+ *     (defaults to false).
+ * @param {SCOPE=} opt_listenerScope Object in whose scope to call
+ *     the listener.
+ * @return {boolean} Whether any listener was removed.
+ * @template SCOPE,EVENTOBJ
+ */
+goog.events.Listenable.prototype.unlisten;
+
+
+/**
+ * Removes an event listener which was added with listen() by the key
+ * returned by listen().
+ *
+ * @param {!goog.events.ListenableKey} key The key returned by
+ *     listen() or listenOnce().
+ * @return {boolean} Whether any listener was removed.
+ */
+goog.events.Listenable.prototype.unlistenByKey;
+
+
+/**
+ * Dispatches an event (or event like object) and calls all listeners
+ * listening for events of this type. The type of the event is decided by the
+ * type property on the event object.
+ *
+ * If any of the listeners returns false OR calls preventDefault then this
+ * function will return false.  If one of the capture listeners calls
+ * stopPropagation, then the bubble listeners won't fire.
+ *
+ * @param {goog.events.EventLike} e Event object.
+ * @return {boolean} If anyone called preventDefault on the event object (or
+ *     if any of the listeners returns false) this will also return false.
+ */
+goog.events.Listenable.prototype.dispatchEvent;
+
+
+/**
+ * Removes all listeners from this listenable. If type is specified,
+ * it will only remove listeners of the particular type. otherwise all
+ * registered listeners will be removed.
+ *
+ * @param {string=} opt_type Type of event to remove, default is to
+ *     remove all types.
+ * @return {number} Number of listeners removed.
+ */
+goog.events.Listenable.prototype.removeAllListeners;
+
+
+/**
+ * Returns the parent of this event target to use for capture/bubble
+ * mechanism.
+ *
+ * NOTE(chrishenry): The name reflects the original implementation of
+ * custom event target ({@code goog.events.EventTarget}). We decided
+ * that changing the name is not worth it.
+ *
+ * @return {goog.events.Listenable} The parent EventTarget or null if
+ *     there is no parent.
+ */
+goog.events.Listenable.prototype.getParentEventTarget;
+
+
+/**
+ * Fires all registered listeners in this listenable for the given
+ * type and capture mode, passing them the given eventObject. This
+ * does not perform actual capture/bubble. Only implementors of the
+ * interface should be using this.
+ *
+ * @param {string|!goog.events.EventId<EVENTOBJ>} type The type of the
+ *     listeners to fire.
+ * @param {boolean} capture The capture mode of the listeners to fire.
+ * @param {EVENTOBJ} eventObject The event object to fire.
+ * @return {boolean} Whether all listeners succeeded without
+ *     attempting to prevent default behavior. If any listener returns
+ *     false or called goog.events.Event#preventDefault, this returns
+ *     false.
+ * @template EVENTOBJ
+ */
+goog.events.Listenable.prototype.fireListeners;
+
+
+/**
+ * Gets all listeners in this listenable for the given type and
+ * capture mode.
+ *
+ * @param {string|!goog.events.EventId} type The type of the listeners to fire.
+ * @param {boolean} capture The capture mode of the listeners to fire.
+ * @return {!Array<!goog.events.ListenableKey>} An array of registered
+ *     listeners.
+ * @template EVENTOBJ
+ */
+goog.events.Listenable.prototype.getListeners;
+
+
+/**
+ * Gets the goog.events.ListenableKey for the event or null if no such
+ * listener is in use.
+ *
+ * @param {string|!goog.events.EventId<EVENTOBJ>} type The name of the event
+ *     without the 'on' prefix.
+ * @param {function(this:SCOPE, EVENTOBJ):(boolean|undefined)} listener The
+ *     listener function to get.
+ * @param {boolean} capture Whether the listener is a capturing listener.
+ * @param {SCOPE=} opt_listenerScope Object in whose scope to call the
+ *     listener.
+ * @return {goog.events.ListenableKey} the found listener or null if not found.
+ * @template SCOPE,EVENTOBJ
+ */
+goog.events.Listenable.prototype.getListener;
+
+
+/**
+ * Whether there is any active listeners matching the specified
+ * signature. If either the type or capture parameters are
+ * unspecified, the function will match on the remaining criteria.
+ *
+ * @param {string|!goog.events.EventId<EVENTOBJ>=} opt_type Event type.
+ * @param {boolean=} opt_capture Whether to check for capture or bubble
+ *     listeners.
+ * @return {boolean} Whether there is any active listeners matching
+ *     the requested type and/or capture phase.
+ * @template EVENTOBJ
+ */
+goog.events.Listenable.prototype.hasListener;
+
+
+
+/**
+ * An interface that describes a single registered listener.
+ * @interface
+ */
+goog.events.ListenableKey = function() {};
+
+
+/**
+ * Counter used to create a unique key
+ * @type {number}
+ * @private
+ */
+goog.events.ListenableKey.counter_ = 0;
+
+
+/**
+ * Reserves a key to be used for ListenableKey#key field.
+ * @return {number} A number to be used to fill ListenableKey#key
+ *     field.
+ */
+goog.events.ListenableKey.reserveKey = function() {
+  return ++goog.events.ListenableKey.counter_;
+};
+
+
+/**
+ * The source event target.
+ * @type {Object|goog.events.Listenable|goog.events.EventTarget}
+ */
+goog.events.ListenableKey.prototype.src;
+
+
+/**
+ * The event type the listener is listening to.
+ * @type {string}
+ */
+goog.events.ListenableKey.prototype.type;
+
+
+/**
+ * The listener function.
+ * @type {function(?):?|{handleEvent:function(?):?}|null}
+ */
+goog.events.ListenableKey.prototype.listener;
+
+
+/**
+ * Whether the listener works on capture phase.
+ * @type {boolean}
+ */
+goog.events.ListenableKey.prototype.capture;
+
+
+/**
+ * The 'this' object for the listener function's scope.
+ * @type {Object|undefined}
+ */
+goog.events.ListenableKey.prototype.handler;
+
+
+/**
+ * A globally unique number to identify the key.
+ * @type {number}
+ */
+goog.events.ListenableKey.prototype.key;

viz/out/goog/events/listener.js

@@ -0,0 +1,131 @@
+// Copyright 2005 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Listener object.
+ * @see ../demos/events.html
+ */
+
+goog.provide('goog.events.Listener');
+
+goog.require('goog.events.ListenableKey');
+
+
+
+/**
+ * Simple class that stores information about a listener
+ * @param {!Function} listener Callback function.
+ * @param {Function} proxy Wrapper for the listener that patches the event.
+ * @param {EventTarget|goog.events.Listenable} src Source object for
+ *     the event.
+ * @param {string} type Event type.
+ * @param {boolean} capture Whether in capture or bubble phase.
+ * @param {Object=} opt_handler Object in whose context to execute the callback.
+ * @implements {goog.events.ListenableKey}
+ * @constructor
+ */
+goog.events.Listener = function(
+    listener, proxy, src, type, capture, opt_handler) {
+  if (goog.events.Listener.ENABLE_MONITORING) {
+    this.creationStack = new Error().stack;
+  }
+
+  /**
+   * Callback function.
+   * @type {Function}
+   */
+  this.listener = listener;
+
+  /**
+   * A wrapper over the original listener. This is used solely to
+   * handle native browser events (it is used to simulate the capture
+   * phase and to patch the event object).
+   * @type {Function}
+   */
+  this.proxy = proxy;
+
+  /**
+   * Object or node that callback is listening to
+   * @type {EventTarget|goog.events.Listenable}
+   */
+  this.src = src;
+
+  /**
+   * The event type.
+   * @const {string}
+   */
+  this.type = type;
+
+  /**
+   * Whether the listener is being called in the capture or bubble phase
+   * @const {boolean}
+   */
+  this.capture = !!capture;
+
+  /**
+   * Optional object whose context to execute the listener in
+   * @type {Object|undefined}
+   */
+  this.handler = opt_handler;
+
+  /**
+   * The key of the listener.
+   * @const {number}
+   * @override
+   */
+  this.key = goog.events.ListenableKey.reserveKey();
+
+  /**
+   * Whether to remove the listener after it has been called.
+   * @type {boolean}
+   */
+  this.callOnce = false;
+
+  /**
+   * Whether the listener has been removed.
+   * @type {boolean}
+   */
+  this.removed = false;
+};
+
+
+/**
+ * @define {boolean} Whether to enable the monitoring of the
+ *     goog.events.Listener instances. Switching on the monitoring is only
+ *     recommended for debugging because it has a significant impact on
+ *     performance and memory usage. If switched off, the monitoring code
+ *     compiles down to 0 bytes.
+ */
+goog.define('goog.events.Listener.ENABLE_MONITORING', false);
+
+
+/**
+ * If monitoring the goog.events.Listener instances is enabled, stores the
+ * creation stack trace of the Disposable instance.
+ * @type {string}
+ */
+goog.events.Listener.prototype.creationStack;
+
+
+/**
+ * Marks this listener as removed. This also remove references held by
+ * this listener object (such as listener and event source).
+ */
+goog.events.Listener.prototype.markAsRemoved = function() {
+  this.removed = true;
+  this.listener = null;
+  this.proxy = null;
+  this.src = null;
+  this.handler = null;
+};

viz/out/goog/events/listenermap.js

@@ -0,0 +1,306 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview A map of listeners that provides utility functions to
+ * deal with listeners on an event target. Used by
+ * {@code goog.events.EventTarget}.
+ *
+ * WARNING: Do not use this class from outside goog.events package.
+ *
+ * @visibility {//closure/goog/bin/sizetests:__pkg__}
+ * @visibility {//closure/goog/events:__pkg__}
+ * @visibility {//closure/goog/labs/events:__pkg__}
+ */
+
+goog.provide('goog.events.ListenerMap');
+
+goog.require('goog.array');
+goog.require('goog.events.Listener');
+goog.require('goog.object');
+
+
+
+/**
+ * Creates a new listener map.
+ * @param {EventTarget|goog.events.Listenable} src The src object.
+ * @constructor
+ * @final
+ */
+goog.events.ListenerMap = function(src) {
+  /** @type {EventTarget|goog.events.Listenable} */
+  this.src = src;
+
+  /**
+   * Maps of event type to an array of listeners.
+   * @type {!Object<string, !Array<!goog.events.Listener>>}
+   */
+  this.listeners = {};
+
+  /**
+   * The count of types in this map that have registered listeners.
+   * @private {number}
+   */
+  this.typeCount_ = 0;
+};
+
+
+/**
+ * @return {number} The count of event types in this map that actually
+ *     have registered listeners.
+ */
+goog.events.ListenerMap.prototype.getTypeCount = function() {
+  return this.typeCount_;
+};
+
+
+/**
+ * @return {number} Total number of registered listeners.
+ */
+goog.events.ListenerMap.prototype.getListenerCount = function() {
+  var count = 0;
+  for (var type in this.listeners) {
+    count += this.listeners[type].length;
+  }
+  return count;
+};
+
+
+/**
+ * Adds an event listener. A listener can only be added once to an
+ * object and if it is added again the key for the listener is
+ * returned.
+ *
+ * Note that a one-off listener will not change an existing listener,
+ * if any. On the other hand a normal listener will change existing
+ * one-off listener to become a normal listener.
+ *
+ * @param {string|!goog.events.EventId} type The listener event type.
+ * @param {!Function} listener This listener callback method.
+ * @param {boolean} callOnce Whether the listener is a one-off
+ *     listener.
+ * @param {boolean=} opt_useCapture The capture mode of the listener.
+ * @param {Object=} opt_listenerScope Object in whose scope to call the
+ *     listener.
+ * @return {!goog.events.ListenableKey} Unique key for the listener.
+ */
+goog.events.ListenerMap.prototype.add = function(
+    type, listener, callOnce, opt_useCapture, opt_listenerScope) {
+  var typeStr = type.toString();
+  var listenerArray = this.listeners[typeStr];
+  if (!listenerArray) {
+    listenerArray = this.listeners[typeStr] = [];
+    this.typeCount_++;
+  }
+
+  var listenerObj;
+  var index = goog.events.ListenerMap.findListenerIndex_(
+      listenerArray, listener, opt_useCapture, opt_listenerScope);
+  if (index > -1) {
+    listenerObj = listenerArray[index];
+    if (!callOnce) {
+      // Ensure that, if there is an existing callOnce listener, it is no
+      // longer a callOnce listener.
+      listenerObj.callOnce = false;
+    }
+  } else {
+    listenerObj = new goog.events.Listener(
+        listener, null, this.src, typeStr, !!opt_useCapture, opt_listenerScope);
+    listenerObj.callOnce = callOnce;
+    listenerArray.push(listenerObj);
+  }
+  return listenerObj;
+};
+
+
+/**
+ * Removes a matching listener.
+ * @param {string|!goog.events.EventId} type The listener event type.
+ * @param {!Function} listener This listener callback method.
+ * @param {boolean=} opt_useCapture The capture mode of the listener.
+ * @param {Object=} opt_listenerScope Object in whose scope to call the
+ *     listener.
+ * @return {boolean} Whether any listener was removed.
+ */
+goog.events.ListenerMap.prototype.remove = function(
+    type, listener, opt_useCapture, opt_listenerScope) {
+  var typeStr = type.toString();
+  if (!(typeStr in this.listeners)) {
+    return false;
+  }
+
+  var listenerArray = this.listeners[typeStr];
+  var index = goog.events.ListenerMap.findListenerIndex_(
+      listenerArray, listener, opt_useCapture, opt_listenerScope);
+  if (index > -1) {
+    var listenerObj = listenerArray[index];
+    listenerObj.markAsRemoved();
+    goog.array.removeAt(listenerArray, index);
+    if (listenerArray.length == 0) {
+      delete this.listeners[typeStr];
+      this.typeCount_--;
+    }
+    return true;
+  }
+  return false;
+};
+
+
+/**
+ * Removes the given listener object.
+ * @param {!goog.events.ListenableKey} listener The listener to remove.
+ * @return {boolean} Whether the listener is removed.
+ */
+goog.events.ListenerMap.prototype.removeByKey = function(listener) {
+  var type = listener.type;
+  if (!(type in this.listeners)) {
+    return false;
+  }
+
+  var removed = goog.array.remove(this.listeners[type], listener);
+  if (removed) {
+    listener.markAsRemoved();
+    if (this.listeners[type].length == 0) {
+      delete this.listeners[type];
+      this.typeCount_--;
+    }
+  }
+  return removed;
+};
+
+
+/**
+ * Removes all listeners from this map. If opt_type is provided, only
+ * listeners that match the given type are removed.
+ * @param {string|!goog.events.EventId=} opt_type Type of event to remove.
+ * @return {number} Number of listeners removed.
+ */
+goog.events.ListenerMap.prototype.removeAll = function(opt_type) {
+  var typeStr = opt_type && opt_type.toString();
+  var count = 0;
+  for (var type in this.listeners) {
+    if (!typeStr || type == typeStr) {
+      var listenerArray = this.listeners[type];
+      for (var i = 0; i < listenerArray.length; i++) {
+        ++count;
+        listenerArray[i].markAsRemoved();
+      }
+      delete this.listeners[type];
+      this.typeCount_--;
+    }
+  }
+  return count;
+};
+
+
+/**
+ * Gets all listeners that match the given type and capture mode. The
+ * returned array is a copy (but the listener objects are not).
+ * @param {string|!goog.events.EventId} type The type of the listeners
+ *     to retrieve.
+ * @param {boolean} capture The capture mode of the listeners to retrieve.
+ * @return {!Array<!goog.events.ListenableKey>} An array of matching
+ *     listeners.
+ */
+goog.events.ListenerMap.prototype.getListeners = function(type, capture) {
+  var listenerArray = this.listeners[type.toString()];
+  var rv = [];
+  if (listenerArray) {
+    for (var i = 0; i < listenerArray.length; ++i) {
+      var listenerObj = listenerArray[i];
+      if (listenerObj.capture == capture) {
+        rv.push(listenerObj);
+      }
+    }
+  }
+  return rv;
+};
+
+
+/**
+ * Gets the goog.events.ListenableKey for the event or null if no such
+ * listener is in use.
+ *
+ * @param {string|!goog.events.EventId} type The type of the listener
+ *     to retrieve.
+ * @param {!Function} listener The listener function to get.
+ * @param {boolean} capture Whether the listener is a capturing listener.
+ * @param {Object=} opt_listenerScope Object in whose scope to call the
+ *     listener.
+ * @return {goog.events.ListenableKey} the found listener or null if not found.
+ */
+goog.events.ListenerMap.prototype.getListener = function(
+    type, listener, capture, opt_listenerScope) {
+  var listenerArray = this.listeners[type.toString()];
+  var i = -1;
+  if (listenerArray) {
+    i = goog.events.ListenerMap.findListenerIndex_(
+        listenerArray, listener, capture, opt_listenerScope);
+  }
+  return i > -1 ? listenerArray[i] : null;
+};
+
+
+/**
+ * Whether there is a matching listener. If either the type or capture
+ * parameters are unspecified, the function will match on the
+ * remaining criteria.
+ *
+ * @param {string|!goog.events.EventId=} opt_type The type of the listener.
+ * @param {boolean=} opt_capture The capture mode of the listener.
+ * @return {boolean} Whether there is an active listener matching
+ *     the requested type and/or capture phase.
+ */
+goog.events.ListenerMap.prototype.hasListener = function(
+    opt_type, opt_capture) {
+  var hasType = goog.isDef(opt_type);
+  var typeStr = hasType ? opt_type.toString() : '';
+  var hasCapture = goog.isDef(opt_capture);
+
+  return goog.object.some(this.listeners, function(listenerArray, type) {
+    for (var i = 0; i < listenerArray.length; ++i) {
+      if ((!hasType || listenerArray[i].type == typeStr) &&
+          (!hasCapture || listenerArray[i].capture == opt_capture)) {
+        return true;
+      }
+    }
+
+    return false;
+  });
+};
+
+
+/**
+ * Finds the index of a matching goog.events.Listener in the given
+ * listenerArray.
+ * @param {!Array<!goog.events.Listener>} listenerArray Array of listener.
+ * @param {!Function} listener The listener function.
+ * @param {boolean=} opt_useCapture The capture flag for the listener.
+ * @param {Object=} opt_listenerScope The listener scope.
+ * @return {number} The index of the matching listener within the
+ *     listenerArray.
+ * @private
+ */
+goog.events.ListenerMap.findListenerIndex_ = function(
+    listenerArray, listener, opt_useCapture, opt_listenerScope) {
+  for (var i = 0; i < listenerArray.length; ++i) {
+    var listenerObj = listenerArray[i];
+    if (!listenerObj.removed && listenerObj.listener == listener &&
+        listenerObj.capture == !!opt_useCapture &&
+        listenerObj.handler == opt_listenerScope) {
+      return i;
+    }
+  }
+  return -1;
+};

viz/out/goog/fs/url.js

@@ -0,0 +1,110 @@
+// Copyright 2015 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Wrapper for URL and its createObjectUrl and revokeObjectUrl
+ * methods that are part of the HTML5 File API.
+ */
+
+goog.provide('goog.fs.url');
+
+
+/**
+ * Creates a blob URL for a blob object.
+ * Throws an error if the browser does not support Object Urls.
+ *
+ * @param {!Blob} blob The object for which to create the URL.
+ * @return {string} The URL for the object.
+ */
+goog.fs.url.createObjectUrl = function(blob) {
+  return goog.fs.url.getUrlObject_().createObjectURL(blob);
+};
+
+
+/**
+ * Revokes a URL created by {@link goog.fs.url.createObjectUrl}.
+ * Throws an error if the browser does not support Object Urls.
+ *
+ * @param {string} url The URL to revoke.
+ */
+goog.fs.url.revokeObjectUrl = function(url) {
+  goog.fs.url.getUrlObject_().revokeObjectURL(url);
+};
+
+
+/**
+ * @typedef {{createObjectURL: (function(!Blob): string),
+ *            revokeObjectURL: function(string): void}}
+ */
+goog.fs.url.UrlObject_;
+
+
+/**
+ * Get the object that has the createObjectURL and revokeObjectURL functions for
+ * this browser.
+ *
+ * @return {goog.fs.url.UrlObject_} The object for this browser.
+ * @private
+ */
+goog.fs.url.getUrlObject_ = function() {
+  var urlObject = goog.fs.url.findUrlObject_();
+  if (urlObject != null) {
+    return urlObject;
+  } else {
+    throw Error('This browser doesn\'t seem to support blob URLs');
+  }
+};
+
+
+/**
+ * Finds the object that has the createObjectURL and revokeObjectURL functions
+ * for this browser.
+ *
+ * @return {?goog.fs.url.UrlObject_} The object for this browser or null if the
+ *     browser does not support Object Urls.
+ * @suppress {unnecessaryCasts} Depending on how the code is compiled, casting
+ *     goog.global to UrlObject_ may result in unnecessary cast warning.
+ *     However, the cast cannot be removed because with different set of
+ *     compiler flags, the cast is indeed necessary.  As such, silencing it.
+ * @private
+ */
+goog.fs.url.findUrlObject_ = function() {
+  // This is what the spec says to do
+  // http://dev.w3.org/2006/webapi/FileAPI/#dfn-createObjectURL
+  if (goog.isDef(goog.global.URL) &&
+      goog.isDef(goog.global.URL.createObjectURL)) {
+    return /** @type {goog.fs.url.UrlObject_} */ (goog.global.URL);
+    // This is what Chrome does (as of 10.0.648.6 dev)
+  } else if (
+      goog.isDef(goog.global.webkitURL) &&
+      goog.isDef(goog.global.webkitURL.createObjectURL)) {
+    return /** @type {goog.fs.url.UrlObject_} */ (goog.global.webkitURL);
+    // This is what the spec used to say to do
+  } else if (goog.isDef(goog.global.createObjectURL)) {
+    return /** @type {goog.fs.url.UrlObject_} */ (goog.global);
+  } else {
+    return null;
+  }
+};
+
+
+/**
+ * Checks whether this browser supports Object Urls. If not, calls to
+ * createObjectUrl and revokeObjectUrl will result in an error.
+ *
+ * @return {boolean} True if this browser supports Object Urls.
+ */
+goog.fs.url.browserSupportsObjectUrls = function() {
+  return goog.fs.url.findUrlObject_() != null;
+};

viz/out/goog/html/safehtml.js

@@ -0,0 +1,948 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+/**
+ * @fileoverview The SafeHtml type and its builders.
+ *
+ * TODO(xtof): Link to document stating type contract.
+ */
+
+goog.provide('goog.html.SafeHtml');
+
+goog.require('goog.array');
+goog.require('goog.asserts');
+goog.require('goog.dom.TagName');
+goog.require('goog.dom.tags');
+goog.require('goog.html.SafeStyle');
+goog.require('goog.html.SafeStyleSheet');
+goog.require('goog.html.SafeUrl');
+goog.require('goog.html.TrustedResourceUrl');
+goog.require('goog.i18n.bidi.Dir');
+goog.require('goog.i18n.bidi.DirectionalString');
+goog.require('goog.labs.userAgent.browser');
+goog.require('goog.object');
+goog.require('goog.string');
+goog.require('goog.string.Const');
+goog.require('goog.string.TypedString');
+
+
+
+/**
+ * A string that is safe to use in HTML context in DOM APIs and HTML documents.
+ *
+ * A SafeHtml is a string-like object that carries the security type contract
+ * that its value as a string will not cause untrusted script execution when
+ * evaluated as HTML in a browser.
+ *
+ * Values of this type are guaranteed to be safe to use in HTML contexts,
+ * such as, assignment to the innerHTML DOM property, or interpolation into
+ * a HTML template in HTML PC_DATA context, in the sense that the use will not
+ * result in a Cross-Site-Scripting vulnerability.
+ *
+ * Instances of this type must be created via the factory methods
+ * ({@code goog.html.SafeHtml.create}, {@code goog.html.SafeHtml.htmlEscape}),
+ * etc and not by invoking its constructor.  The constructor intentionally
+ * takes no parameters and the type is immutable; hence only a default instance
+ * corresponding to the empty string can be obtained via constructor invocation.
+ *
+ * @see goog.html.SafeHtml#create
+ * @see goog.html.SafeHtml#htmlEscape
+ * @constructor
+ * @final
+ * @struct
+ * @implements {goog.i18n.bidi.DirectionalString}
+ * @implements {goog.string.TypedString}
+ */
+goog.html.SafeHtml = function() {
+  /**
+   * The contained value of this SafeHtml.  The field has a purposely ugly
+   * name to make (non-compiled) code that attempts to directly access this
+   * field stand out.
+   * @private {string}
+   */
+  this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = '';
+
+  /**
+   * A type marker used to implement additional run-time type checking.
+   * @see goog.html.SafeHtml#unwrap
+   * @const
+   * @private
+   */
+  this.SAFE_HTML_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
+      goog.html.SafeHtml.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
+
+  /**
+   * This SafeHtml's directionality, or null if unknown.
+   * @private {?goog.i18n.bidi.Dir}
+   */
+  this.dir_ = null;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.SafeHtml.prototype.implementsGoogI18nBidiDirectionalString = true;
+
+
+/** @override */
+goog.html.SafeHtml.prototype.getDirection = function() {
+  return this.dir_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.SafeHtml.prototype.implementsGoogStringTypedString = true;
+
+
+/**
+ * Returns this SafeHtml's value as string.
+ *
+ * IMPORTANT: In code where it is security relevant that an object's type is
+ * indeed {@code SafeHtml}, use {@code goog.html.SafeHtml.unwrap} instead of
+ * this method. If in doubt, assume that it's security relevant. In particular,
+ * note that goog.html functions which return a goog.html type do not guarantee
+ * that the returned instance is of the right type. For example:
+ *
+ * <pre>
+ * var fakeSafeHtml = new String('fake');
+ * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
+ * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
+ * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
+ * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
+ * // instanceof goog.html.SafeHtml.
+ * </pre>
+ *
+ * @see goog.html.SafeHtml#unwrap
+ * @override
+ */
+goog.html.SafeHtml.prototype.getTypedStringValue = function() {
+  return this.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a debug string-representation of this value.
+   *
+   * To obtain the actual string value wrapped in a SafeHtml, use
+   * {@code goog.html.SafeHtml.unwrap}.
+   *
+   * @see goog.html.SafeHtml#unwrap
+   * @override
+   */
+  goog.html.SafeHtml.prototype.toString = function() {
+    return 'SafeHtml{' + this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ +
+        '}';
+  };
+}
+
+
+/**
+ * Performs a runtime check that the provided object is indeed a SafeHtml
+ * object, and returns its value.
+ * @param {!goog.html.SafeHtml} safeHtml The object to extract from.
+ * @return {string} The SafeHtml object's contained string, unless the run-time
+ *     type check fails. In that case, {@code unwrap} returns an innocuous
+ *     string, or, if assertions are enabled, throws
+ *     {@code goog.asserts.AssertionError}.
+ */
+goog.html.SafeHtml.unwrap = function(safeHtml) {
+  // Perform additional run-time type-checking to ensure that safeHtml is indeed
+  // an instance of the expected type.  This provides some additional protection
+  // against security bugs due to application code that disables type checks.
+  // Specifically, the following checks are performed:
+  // 1. The object is an instance of the expected type.
+  // 2. The object is not an instance of a subclass.
+  // 3. The object carries a type marker for the expected type. "Faking" an
+  // object requires a reference to the type marker, which has names intended
+  // to stand out in code reviews.
+  if (safeHtml instanceof goog.html.SafeHtml &&
+      safeHtml.constructor === goog.html.SafeHtml &&
+      safeHtml.SAFE_HTML_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
+          goog.html.SafeHtml.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
+    return safeHtml.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
+  } else {
+    goog.asserts.fail('expected object of type SafeHtml, got \'' +
+        safeHtml + '\' of type ' + goog.typeOf(safeHtml));
+    return 'type_error:SafeHtml';
+  }
+};
+
+
+/**
+ * Shorthand for union of types that can sensibly be converted to strings
+ * or might already be SafeHtml (as SafeHtml is a goog.string.TypedString).
+ * @private
+ * @typedef {string|number|boolean|!goog.string.TypedString|
+ *           !goog.i18n.bidi.DirectionalString}
+ */
+goog.html.SafeHtml.TextOrHtml_;
+
+
+/**
+ * Returns HTML-escaped text as a SafeHtml object.
+ *
+ * If text is of a type that implements
+ * {@code goog.i18n.bidi.DirectionalString}, the directionality of the new
+ * {@code SafeHtml} object is set to {@code text}'s directionality, if known.
+ * Otherwise, the directionality of the resulting SafeHtml is unknown (i.e.,
+ * {@code null}).
+ *
+ * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text to escape. If
+ *     the parameter is of type SafeHtml it is returned directly (no escaping
+ *     is done).
+ * @return {!goog.html.SafeHtml} The escaped text, wrapped as a SafeHtml.
+ */
+goog.html.SafeHtml.htmlEscape = function(textOrHtml) {
+  if (textOrHtml instanceof goog.html.SafeHtml) {
+    return textOrHtml;
+  }
+  var dir = null;
+  if (textOrHtml.implementsGoogI18nBidiDirectionalString) {
+    dir = textOrHtml.getDirection();
+  }
+  var textAsString;
+  if (textOrHtml.implementsGoogStringTypedString) {
+    textAsString = textOrHtml.getTypedStringValue();
+  } else {
+    textAsString = String(textOrHtml);
+  }
+  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+      goog.string.htmlEscape(textAsString), dir);
+};
+
+
+/**
+ * Returns HTML-escaped text as a SafeHtml object, with newlines changed to
+ * &lt;br&gt;.
+ * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text to escape. If
+ *     the parameter is of type SafeHtml it is returned directly (no escaping
+ *     is done).
+ * @return {!goog.html.SafeHtml} The escaped text, wrapped as a SafeHtml.
+ */
+goog.html.SafeHtml.htmlEscapePreservingNewlines = function(textOrHtml) {
+  if (textOrHtml instanceof goog.html.SafeHtml) {
+    return textOrHtml;
+  }
+  var html = goog.html.SafeHtml.htmlEscape(textOrHtml);
+  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+      goog.string.newLineToBr(goog.html.SafeHtml.unwrap(html)),
+      html.getDirection());
+};
+
+
+/**
+ * Returns HTML-escaped text as a SafeHtml object, with newlines changed to
+ * &lt;br&gt; and escaping whitespace to preserve spatial formatting. Character
+ * entity #160 is used to make it safer for XML.
+ * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text to escape. If
+ *     the parameter is of type SafeHtml it is returned directly (no escaping
+ *     is done).
+ * @return {!goog.html.SafeHtml} The escaped text, wrapped as a SafeHtml.
+ */
+goog.html.SafeHtml.htmlEscapePreservingNewlinesAndSpaces = function(
+    textOrHtml) {
+  if (textOrHtml instanceof goog.html.SafeHtml) {
+    return textOrHtml;
+  }
+  var html = goog.html.SafeHtml.htmlEscape(textOrHtml);
+  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+      goog.string.whitespaceEscape(goog.html.SafeHtml.unwrap(html)),
+      html.getDirection());
+};
+
+
+/**
+ * Coerces an arbitrary object into a SafeHtml object.
+ *
+ * If {@code textOrHtml} is already of type {@code goog.html.SafeHtml}, the same
+ * object is returned. Otherwise, {@code textOrHtml} is coerced to string, and
+ * HTML-escaped. If {@code textOrHtml} is of a type that implements
+ * {@code goog.i18n.bidi.DirectionalString}, its directionality, if known, is
+ * preserved.
+ *
+ * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text or SafeHtml to
+ *     coerce.
+ * @return {!goog.html.SafeHtml} The resulting SafeHtml object.
+ * @deprecated Use goog.html.SafeHtml.htmlEscape.
+ */
+goog.html.SafeHtml.from = goog.html.SafeHtml.htmlEscape;
+
+
+/**
+ * @const
+ * @private
+ */
+goog.html.SafeHtml.VALID_NAMES_IN_TAG_ = /^[a-zA-Z0-9-]+$/;
+
+
+/**
+ * Set of attributes containing URL as defined at
+ * http://www.w3.org/TR/html5/index.html#attributes-1.
+ * @private @const {!Object<string,boolean>}
+ */
+goog.html.SafeHtml.URL_ATTRIBUTES_ = goog.object.createSet(
+    'action', 'cite', 'data', 'formaction', 'href', 'manifest', 'poster',
+    'src');
+
+
+/**
+ * Tags which are unsupported via create(). They might be supported via a
+ * tag-specific create method. These are tags which might require a
+ * TrustedResourceUrl in one of their attributes or a restricted type for
+ * their content.
+ * @private @const {!Object<string,boolean>}
+ */
+goog.html.SafeHtml.NOT_ALLOWED_TAG_NAMES_ = goog.object.createSet(
+    goog.dom.TagName.APPLET, goog.dom.TagName.BASE, goog.dom.TagName.EMBED,
+    goog.dom.TagName.IFRAME, goog.dom.TagName.LINK, goog.dom.TagName.MATH,
+    goog.dom.TagName.META, goog.dom.TagName.OBJECT, goog.dom.TagName.SCRIPT,
+    goog.dom.TagName.STYLE, goog.dom.TagName.SVG, goog.dom.TagName.TEMPLATE);
+
+
+/**
+ * @typedef {string|number|goog.string.TypedString|
+ *     goog.html.SafeStyle.PropertyMap}
+ */
+goog.html.SafeHtml.AttributeValue;
+
+
+/**
+ * Creates a SafeHtml content consisting of a tag with optional attributes and
+ * optional content.
+ *
+ * For convenience tag names and attribute names are accepted as regular
+ * strings, instead of goog.string.Const. Nevertheless, you should not pass
+ * user-controlled values to these parameters. Note that these parameters are
+ * syntactically validated at runtime, and invalid values will result in
+ * an exception.
+ *
+ * Example usage:
+ *
+ * goog.html.SafeHtml.create('br');
+ * goog.html.SafeHtml.create('div', {'class': 'a'});
+ * goog.html.SafeHtml.create('p', {}, 'a');
+ * goog.html.SafeHtml.create('p', {}, goog.html.SafeHtml.create('br'));
+ *
+ * goog.html.SafeHtml.create('span', {
+ *   'style': {'margin': '0'}
+ * });
+ *
+ * To guarantee SafeHtml's type contract is upheld there are restrictions on
+ * attribute values and tag names.
+ *
+ * - For attributes which contain script code (on*), a goog.string.Const is
+ *   required.
+ * - For attributes which contain style (style), a goog.html.SafeStyle or a
+ *   goog.html.SafeStyle.PropertyMap is required.
+ * - For attributes which are interpreted as URLs (e.g. src, href) a
+ *   goog.html.SafeUrl, goog.string.Const or string is required. If a string
+ *   is passed, it will be sanitized with SafeUrl.sanitize().
+ * - For tags which can load code or set security relevant page metadata,
+ *   more specific goog.html.SafeHtml.create*() functions must be used. Tags
+ *   which are not supported by this function are applet, base, embed, iframe,
+ *   link, math, object, script, style, svg, and template.
+ *
+ * @param {string} tagName The name of the tag. Only tag names consisting of
+ *     [a-zA-Z0-9-] are allowed. Tag names documented above are disallowed.
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ *     Mapping from attribute names to their values. Only attribute names
+ *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
+ *     the attribute to be omitted.
+ * @param {!goog.html.SafeHtml.TextOrHtml_|
+ *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content Content to
+ *     HTML-escape and put inside the tag. This must be empty for void tags
+ *     like <br>. Array elements are concatenated.
+ * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
+ * @throws {Error} If invalid tag name, attribute name, or attribute value is
+ *     provided.
+ * @throws {goog.asserts.AssertionError} If content for void tag is provided.
+ */
+goog.html.SafeHtml.create = function(tagName, opt_attributes, opt_content) {
+  goog.html.SafeHtml.verifyTagName(tagName);
+  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
+      tagName, opt_attributes, opt_content);
+};
+
+
+/**
+ * Verifies if the tag name is valid and if it doesn't change the context.
+ * E.g. STRONG is fine but SCRIPT throws because it changes context. See
+ * goog.html.SafeHtml.create for an explanation of allowed tags.
+ * @param {string} tagName
+ * @throws {Error} If invalid tag name is provided.
+ * @package
+ */
+goog.html.SafeHtml.verifyTagName = function(tagName) {
+  if (!goog.html.SafeHtml.VALID_NAMES_IN_TAG_.test(tagName)) {
+    throw Error('Invalid tag name <' + tagName + '>.');
+  }
+  if (tagName.toUpperCase() in goog.html.SafeHtml.NOT_ALLOWED_TAG_NAMES_) {
+    throw Error('Tag name <' + tagName + '> is not allowed for SafeHtml.');
+  }
+};
+
+
+/**
+ * Creates a SafeHtml representing an iframe tag.
+ *
+ * This by default restricts the iframe as much as possible by setting the
+ * sandbox attribute to the empty string. If the iframe requires less
+ * restrictions, set the sandbox attribute as tight as possible, but do not rely
+ * on the sandbox as a security feature because it is not supported by older
+ * browsers. If a sandbox is essential to security (e.g. for third-party
+ * frames), use createSandboxIframe which checks for browser support.
+ *
+ * @see https://developer.mozilla.org/en/docs/Web/HTML/Element/iframe#attr-sandbox
+ *
+ * @param {?goog.html.TrustedResourceUrl=} opt_src The value of the src
+ *     attribute. If null or undefined src will not be set.
+ * @param {?goog.html.SafeHtml=} opt_srcdoc The value of the srcdoc attribute.
+ *     If null or undefined srcdoc will not be set.
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ *     Mapping from attribute names to their values. Only attribute names
+ *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
+ *     the attribute to be omitted.
+ * @param {!goog.html.SafeHtml.TextOrHtml_|
+ *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content Content to
+ *     HTML-escape and put inside the tag. Array elements are concatenated.
+ * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
+ * @throws {Error} If invalid tag name, attribute name, or attribute value is
+ *     provided. If opt_attributes contains the src or srcdoc attributes.
+ */
+goog.html.SafeHtml.createIframe = function(
+    opt_src, opt_srcdoc, opt_attributes, opt_content) {
+  if (opt_src) {
+    // Check whether this is really TrustedResourceUrl.
+    goog.html.TrustedResourceUrl.unwrap(opt_src);
+  }
+
+  var fixedAttributes = {};
+  fixedAttributes['src'] = opt_src || null;
+  fixedAttributes['srcdoc'] =
+      opt_srcdoc && goog.html.SafeHtml.unwrap(opt_srcdoc);
+  var defaultAttributes = {'sandbox': ''};
+  var attributes = goog.html.SafeHtml.combineAttributes(
+      fixedAttributes, defaultAttributes, opt_attributes);
+  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
+      'iframe', attributes, opt_content);
+};
+
+
+/**
+ * Creates a SafeHtml representing a sandboxed iframe tag.
+ *
+ * The sandbox attribute is enforced in its most restrictive mode, an empty
+ * string. Consequently, the security requirements for the src and srcdoc
+ * attributes are relaxed compared to SafeHtml.createIframe. This function
+ * will throw on browsers that do not support the sandbox attribute, as
+ * determined by SafeHtml.canUseSandboxIframe.
+ *
+ * The SafeHtml returned by this function can trigger downloads with no
+ * user interaction on Chrome (though only a few, further attempts are blocked).
+ * Firefox and IE will block all downloads from the sandbox.
+ *
+ * @see https://developer.mozilla.org/en/docs/Web/HTML/Element/iframe#attr-sandbox
+ * @see https://lists.w3.org/Archives/Public/public-whatwg-archive/2013Feb/0112.html
+ *
+ * @param {string|!goog.html.SafeUrl=} opt_src The value of the src
+ *     attribute. If null or undefined src will not be set.
+ * @param {string=} opt_srcdoc The value of the srcdoc attribute.
+ *     If null or undefined srcdoc will not be set. Will not be sanitized.
+ * @param {!Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ *     Mapping from attribute names to their values. Only attribute names
+ *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
+ *     the attribute to be omitted.
+ * @param {!goog.html.SafeHtml.TextOrHtml_|
+ *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content Content to
+ *     HTML-escape and put inside the tag. Array elements are concatenated.
+ * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
+ * @throws {Error} If invalid tag name, attribute name, or attribute value is
+ *     provided. If opt_attributes contains the src, srcdoc or sandbox
+ *     attributes. If browser does not support the sandbox attribute on iframe.
+ */
+goog.html.SafeHtml.createSandboxIframe = function(
+    opt_src, opt_srcdoc, opt_attributes, opt_content) {
+  if (!goog.html.SafeHtml.canUseSandboxIframe()) {
+    throw new Error('The browser does not support sandboxed iframes.');
+  }
+
+  var fixedAttributes = {};
+  if (opt_src) {
+    // Note that sanitize is a no-op on SafeUrl.
+    fixedAttributes['src'] =
+        goog.html.SafeUrl.unwrap(goog.html.SafeUrl.sanitize(opt_src));
+  } else {
+    fixedAttributes['src'] = null;
+  }
+  fixedAttributes['srcdoc'] = opt_srcdoc || null;
+  fixedAttributes['sandbox'] = '';
+  var attributes =
+      goog.html.SafeHtml.combineAttributes(fixedAttributes, {}, opt_attributes);
+  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
+      'iframe', attributes, opt_content);
+};
+
+
+/**
+ * Checks if the user agent supports sandboxed iframes.
+ * @return {boolean}
+ */
+goog.html.SafeHtml.canUseSandboxIframe = function() {
+  return goog.global['HTMLIFrameElement'] &&
+      ('sandbox' in goog.global['HTMLIFrameElement'].prototype);
+};
+
+
+/**
+ * Creates a SafeHtml representing a script tag with the src attribute.
+ * @param {!goog.html.TrustedResourceUrl} src The value of the src
+ * attribute.
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=}
+ * opt_attributes
+ *     Mapping from attribute names to their values. Only attribute names
+ *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined
+ *     causes the attribute to be omitted.
+ * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
+ * @throws {Error} If invalid attribute name or value is provided. If
+ *     opt_attributes contains the src attribute.
+ */
+goog.html.SafeHtml.createScriptSrc = function(src, opt_attributes) {
+  // Check whether this is really TrustedResourceUrl.
+  goog.html.TrustedResourceUrl.unwrap(src);
+
+  var fixedAttributes = {'src': src};
+  var defaultAttributes = {};
+  var attributes = goog.html.SafeHtml.combineAttributes(
+      fixedAttributes, defaultAttributes, opt_attributes);
+  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
+      'script', attributes);
+};
+
+
+/**
+ * Creates a SafeHtml representing a style tag. The type attribute is set
+ * to "text/css".
+ * @param {!goog.html.SafeStyleSheet|!Array<!goog.html.SafeStyleSheet>}
+ *     styleSheet Content to put inside the tag. Array elements are
+ *     concatenated.
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ *     Mapping from attribute names to their values. Only attribute names
+ *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
+ *     the attribute to be omitted.
+ * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
+ * @throws {Error} If invalid attribute name or attribute value is provided. If
+ *     opt_attributes contains the type attribute.
+ */
+goog.html.SafeHtml.createStyle = function(styleSheet, opt_attributes) {
+  var fixedAttributes = {'type': 'text/css'};
+  var defaultAttributes = {};
+  var attributes = goog.html.SafeHtml.combineAttributes(
+      fixedAttributes, defaultAttributes, opt_attributes);
+
+  var content = '';
+  styleSheet = goog.array.concat(styleSheet);
+  for (var i = 0; i < styleSheet.length; i++) {
+    content += goog.html.SafeStyleSheet.unwrap(styleSheet[i]);
+  }
+  // Convert to SafeHtml so that it's not HTML-escaped. This is safe because
+  // as part of its contract, SafeStyleSheet should have no dangerous '<'.
+  var htmlContent =
+      goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+          content, goog.i18n.bidi.Dir.NEUTRAL);
+  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
+      'style', attributes, htmlContent);
+};
+
+
+/**
+ * Creates a SafeHtml representing a meta refresh tag.
+ * @param {!goog.html.SafeUrl|string} url Where to redirect. If a string is
+ *     passed, it will be sanitized with SafeUrl.sanitize().
+ * @param {number=} opt_secs Number of seconds until the page should be
+ *     reloaded. Will be set to 0 if unspecified.
+ * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
+ */
+goog.html.SafeHtml.createMetaRefresh = function(url, opt_secs) {
+
+  // Note that sanitize is a no-op on SafeUrl.
+  var unwrappedUrl = goog.html.SafeUrl.unwrap(goog.html.SafeUrl.sanitize(url));
+
+  if (goog.labs.userAgent.browser.isIE() ||
+      goog.labs.userAgent.browser.isEdge()) {
+    // IE/EDGE can't parse the content attribute if the url contains a
+    // semicolon. We can fix this by adding quotes around the url, but then we
+    // can't parse quotes in the URL correctly. Also, it seems that IE/EDGE
+    // did not unescape semicolons in these URLs at some point in the past. We
+    // take a best-effort approach.
+    //
+    // If the URL has semicolons (which may happen in some cases, see
+    // http://www.w3.org/TR/1999/REC-html401-19991224/appendix/notes.html#h-B.2
+    // for instance), wrap it in single quotes to protect the semicolons.
+    // If the URL has semicolons and single quotes, url-encode the single quotes
+    // as well.
+    //
+    // This is imperfect. Notice that both ' and ; are reserved characters in
+    // URIs, so this could do the wrong thing, but at least it will do the wrong
+    // thing in only rare cases.
+    if (goog.string.contains(unwrappedUrl, ';')) {
+      unwrappedUrl = "'" + unwrappedUrl.replace(/'/g, '%27') + "'";
+    }
+  }
+  var attributes = {
+    'http-equiv': 'refresh',
+    'content': (opt_secs || 0) + '; url=' + unwrappedUrl
+  };
+
+  // This function will handle the HTML escaping for attributes.
+  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
+      'meta', attributes);
+};
+
+
+/**
+ * @param {string} tagName The tag name.
+ * @param {string} name The attribute name.
+ * @param {!goog.html.SafeHtml.AttributeValue} value The attribute value.
+ * @return {string} A "name=value" string.
+ * @throws {Error} If attribute value is unsafe for the given tag and attribute.
+ * @private
+ */
+goog.html.SafeHtml.getAttrNameAndValue_ = function(tagName, name, value) {
+  // If it's goog.string.Const, allow any valid attribute name.
+  if (value instanceof goog.string.Const) {
+    value = goog.string.Const.unwrap(value);
+  } else if (name.toLowerCase() == 'style') {
+    value = goog.html.SafeHtml.getStyleValue_(value);
+  } else if (/^on/i.test(name)) {
+    // TODO(jakubvrana): Disallow more attributes with a special meaning.
+    throw Error(
+        'Attribute "' + name + '" requires goog.string.Const value, "' + value +
+        '" given.');
+    // URL attributes handled differently accroding to tag.
+  } else if (name.toLowerCase() in goog.html.SafeHtml.URL_ATTRIBUTES_) {
+    if (value instanceof goog.html.TrustedResourceUrl) {
+      value = goog.html.TrustedResourceUrl.unwrap(value);
+    } else if (value instanceof goog.html.SafeUrl) {
+      value = goog.html.SafeUrl.unwrap(value);
+    } else if (goog.isString(value)) {
+      value = goog.html.SafeUrl.sanitize(value).getTypedStringValue();
+    } else {
+      throw Error(
+          'Attribute "' + name + '" on tag "' + tagName +
+          '" requires goog.html.SafeUrl, goog.string.Const, or string,' +
+          ' value "' + value + '" given.');
+    }
+  }
+
+  // Accept SafeUrl, TrustedResourceUrl, etc. for attributes which only require
+  // HTML-escaping.
+  if (value.implementsGoogStringTypedString) {
+    // Ok to call getTypedStringValue() since there's no reliance on the type
+    // contract for security here.
+    value = value.getTypedStringValue();
+  }
+
+  goog.asserts.assert(
+      goog.isString(value) || goog.isNumber(value),
+      'String or number value expected, got ' + (typeof value) +
+          ' with value: ' + value);
+  return name + '="' + goog.string.htmlEscape(String(value)) + '"';
+};
+
+
+/**
+ * Gets value allowed in "style" attribute.
+ * @param {!goog.html.SafeHtml.AttributeValue} value It could be SafeStyle or a
+ *     map which will be passed to goog.html.SafeStyle.create.
+ * @return {string} Unwrapped value.
+ * @throws {Error} If string value is given.
+ * @private
+ */
+goog.html.SafeHtml.getStyleValue_ = function(value) {
+  if (!goog.isObject(value)) {
+    throw Error(
+        'The "style" attribute requires goog.html.SafeStyle or map ' +
+        'of style properties, ' + (typeof value) + ' given: ' + value);
+  }
+  if (!(value instanceof goog.html.SafeStyle)) {
+    // Process the property bag into a style object.
+    value = goog.html.SafeStyle.create(value);
+  }
+  return goog.html.SafeStyle.unwrap(value);
+};
+
+
+/**
+ * Creates a SafeHtml content with known directionality consisting of a tag with
+ * optional attributes and optional content.
+ * @param {!goog.i18n.bidi.Dir} dir Directionality.
+ * @param {string} tagName
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ * @param {!goog.html.SafeHtml.TextOrHtml_|
+ *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content
+ * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
+ */
+goog.html.SafeHtml.createWithDir = function(
+    dir, tagName, opt_attributes, opt_content) {
+  var html = goog.html.SafeHtml.create(tagName, opt_attributes, opt_content);
+  html.dir_ = dir;
+  return html;
+};
+
+
+/**
+ * Creates a new SafeHtml object by concatenating values.
+ * @param {...(!goog.html.SafeHtml.TextOrHtml_|
+ *     !Array<!goog.html.SafeHtml.TextOrHtml_>)} var_args Values to concatenate.
+ * @return {!goog.html.SafeHtml}
+ */
+goog.html.SafeHtml.concat = function(var_args) {
+  var dir = goog.i18n.bidi.Dir.NEUTRAL;
+  var content = '';
+
+  /**
+   * @param {!goog.html.SafeHtml.TextOrHtml_|
+   *     !Array<!goog.html.SafeHtml.TextOrHtml_>} argument
+   */
+  var addArgument = function(argument) {
+    if (goog.isArray(argument)) {
+      goog.array.forEach(argument, addArgument);
+    } else {
+      var html = goog.html.SafeHtml.htmlEscape(argument);
+      content += goog.html.SafeHtml.unwrap(html);
+      var htmlDir = html.getDirection();
+      if (dir == goog.i18n.bidi.Dir.NEUTRAL) {
+        dir = htmlDir;
+      } else if (htmlDir != goog.i18n.bidi.Dir.NEUTRAL && dir != htmlDir) {
+        dir = null;
+      }
+    }
+  };
+
+  goog.array.forEach(arguments, addArgument);
+  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+      content, dir);
+};
+
+
+/**
+ * Creates a new SafeHtml object with known directionality by concatenating the
+ * values.
+ * @param {!goog.i18n.bidi.Dir} dir Directionality.
+ * @param {...(!goog.html.SafeHtml.TextOrHtml_|
+ *     !Array<!goog.html.SafeHtml.TextOrHtml_>)} var_args Elements of array
+ *     arguments would be processed recursively.
+ * @return {!goog.html.SafeHtml}
+ */
+goog.html.SafeHtml.concatWithDir = function(dir, var_args) {
+  var html = goog.html.SafeHtml.concat(goog.array.slice(arguments, 1));
+  html.dir_ = dir;
+  return html;
+};
+
+
+/**
+ * Type marker for the SafeHtml type, used to implement additional run-time
+ * type checking.
+ * @const {!Object}
+ * @private
+ */
+goog.html.SafeHtml.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
+
+
+/**
+ * Package-internal utility method to create SafeHtml instances.
+ *
+ * @param {string} html The string to initialize the SafeHtml object with.
+ * @param {?goog.i18n.bidi.Dir} dir The directionality of the SafeHtml to be
+ *     constructed, or null if unknown.
+ * @return {!goog.html.SafeHtml} The initialized SafeHtml object.
+ * @package
+ */
+goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse = function(
+    html, dir) {
+  return new goog.html.SafeHtml().initSecurityPrivateDoNotAccessOrElse_(
+      html, dir);
+};
+
+
+/**
+ * Called from createSafeHtmlSecurityPrivateDoNotAccessOrElse(). This
+ * method exists only so that the compiler can dead code eliminate static
+ * fields (like EMPTY) when they're not accessed.
+ * @param {string} html
+ * @param {?goog.i18n.bidi.Dir} dir
+ * @return {!goog.html.SafeHtml}
+ * @private
+ */
+goog.html.SafeHtml.prototype.initSecurityPrivateDoNotAccessOrElse_ = function(
+    html, dir) {
+  this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = html;
+  this.dir_ = dir;
+  return this;
+};
+
+
+/**
+ * Like create() but does not restrict which tags can be constructed.
+ *
+ * @param {string} tagName Tag name. Set or validated by caller.
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ * @param {(!goog.html.SafeHtml.TextOrHtml_|
+ *     !Array<!goog.html.SafeHtml.TextOrHtml_>)=} opt_content
+ * @return {!goog.html.SafeHtml}
+ * @throws {Error} If invalid or unsafe attribute name or value is provided.
+ * @throws {goog.asserts.AssertionError} If content for void tag is provided.
+ * @package
+ */
+goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse = function(
+    tagName, opt_attributes, opt_content) {
+  var dir = null;
+  var result = '<' + tagName;
+  result += goog.html.SafeHtml.stringifyAttributes(tagName, opt_attributes);
+
+  var content = opt_content;
+  if (!goog.isDefAndNotNull(content)) {
+    content = [];
+  } else if (!goog.isArray(content)) {
+    content = [content];
+  }
+
+  if (goog.dom.tags.isVoidTag(tagName.toLowerCase())) {
+    goog.asserts.assert(
+        !content.length, 'Void tag <' + tagName + '> does not allow content.');
+    result += '>';
+  } else {
+    var html = goog.html.SafeHtml.concat(content);
+    result += '>' + goog.html.SafeHtml.unwrap(html) + '</' + tagName + '>';
+    dir = html.getDirection();
+  }
+
+  var dirAttribute = opt_attributes && opt_attributes['dir'];
+  if (dirAttribute) {
+    if (/^(ltr|rtl|auto)$/i.test(dirAttribute)) {
+      // If the tag has the "dir" attribute specified then its direction is
+      // neutral because it can be safely used in any context.
+      dir = goog.i18n.bidi.Dir.NEUTRAL;
+    } else {
+      dir = null;
+    }
+  }
+
+  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+      result, dir);
+};
+
+
+/**
+ * Creates a string with attributes to insert after tagName.
+ * @param {string} tagName
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ * @return {string} Returns an empty string if there are no attributes, returns
+ *     a string starting with a space otherwise.
+ * @throws {Error} If attribute value is unsafe for the given tag and attribute.
+ * @package
+ */
+goog.html.SafeHtml.stringifyAttributes = function(tagName, opt_attributes) {
+  var result = '';
+  if (opt_attributes) {
+    for (var name in opt_attributes) {
+      if (!goog.html.SafeHtml.VALID_NAMES_IN_TAG_.test(name)) {
+        throw Error('Invalid attribute name "' + name + '".');
+      }
+      var value = opt_attributes[name];
+      if (!goog.isDefAndNotNull(value)) {
+        continue;
+      }
+      result +=
+          ' ' + goog.html.SafeHtml.getAttrNameAndValue_(tagName, name, value);
+    }
+  }
+  return result;
+};
+
+
+/**
+ * @param {!Object<string, string>} fixedAttributes
+ * @param {!Object<string, string>} defaultAttributes
+ * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
+ *     Optional attributes passed to create*().
+ * @return {!Object<string, ?goog.html.SafeHtml.AttributeValue>}
+ * @throws {Error} If opt_attributes contains an attribute with the same name
+ *     as an attribute in fixedAttributes.
+ * @package
+ */
+goog.html.SafeHtml.combineAttributes = function(
+    fixedAttributes, defaultAttributes, opt_attributes) {
+  var combinedAttributes = {};
+  var name;
+
+  for (name in fixedAttributes) {
+    goog.asserts.assert(name.toLowerCase() == name, 'Must be lower case');
+    combinedAttributes[name] = fixedAttributes[name];
+  }
+  for (name in defaultAttributes) {
+    goog.asserts.assert(name.toLowerCase() == name, 'Must be lower case');
+    combinedAttributes[name] = defaultAttributes[name];
+  }
+
+  for (name in opt_attributes) {
+    var nameLower = name.toLowerCase();
+    if (nameLower in fixedAttributes) {
+      throw Error(
+          'Cannot override "' + nameLower + '" attribute, got "' + name +
+          '" with value "' + opt_attributes[name] + '"');
+    }
+    if (nameLower in defaultAttributes) {
+      delete combinedAttributes[nameLower];
+    }
+    combinedAttributes[name] = opt_attributes[name];
+  }
+
+  return combinedAttributes;
+};
+
+
+/**
+ * A SafeHtml instance corresponding to the HTML doctype: "<!DOCTYPE html>".
+ * @const {!goog.html.SafeHtml}
+ */
+goog.html.SafeHtml.DOCTYPE_HTML =
+    goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+        '<!DOCTYPE html>', goog.i18n.bidi.Dir.NEUTRAL);
+
+
+/**
+ * A SafeHtml instance corresponding to the empty string.
+ * @const {!goog.html.SafeHtml}
+ */
+goog.html.SafeHtml.EMPTY =
+    goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+        '', goog.i18n.bidi.Dir.NEUTRAL);
+
+
+/**
+ * A SafeHtml instance corresponding to the <br> tag.
+ * @const {!goog.html.SafeHtml}
+ */
+goog.html.SafeHtml.BR =
+    goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+        '<br>', goog.i18n.bidi.Dir.NEUTRAL);

viz/out/goog/html/safescript.js

@@ -0,0 +1,234 @@
+// Copyright 2014 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview The SafeScript type and its builders.
+ *
+ * TODO(xtof): Link to document stating type contract.
+ */
+
+goog.provide('goog.html.SafeScript');
+
+goog.require('goog.asserts');
+goog.require('goog.string.Const');
+goog.require('goog.string.TypedString');
+
+
+
+/**
+ * A string-like object which represents JavaScript code and that carries the
+ * security type contract that its value, as a string, will not cause execution
+ * of unconstrained attacker controlled code (XSS) when evaluated as JavaScript
+ * in a browser.
+ *
+ * Instances of this type must be created via the factory method
+ * {@code goog.html.SafeScript.fromConstant} and not by invoking its
+ * constructor. The constructor intentionally takes no parameters and the type
+ * is immutable; hence only a default instance corresponding to the empty string
+ * can be obtained via constructor invocation.
+ *
+ * A SafeScript's string representation can safely be interpolated as the
+ * content of a script element within HTML. The SafeScript string should not be
+ * escaped before interpolation.
+ *
+ * Note that the SafeScript might contain text that is attacker-controlled but
+ * that text should have been interpolated with appropriate escaping,
+ * sanitization and/or validation into the right location in the script, such
+ * that it is highly constrained in its effect (for example, it had to match a
+ * set of whitelisted words).
+ *
+ * A SafeScript can be constructed via security-reviewed unchecked
+ * conversions. In this case producers of SafeScript must ensure themselves that
+ * the SafeScript does not contain unsafe script. Note in particular that
+ * {@code <} is dangerous, even when inside JavaScript strings, and so should
+ * always be forbidden or JavaScript escaped in user controlled input. For
+ * example, if {@code </script><script>evil</script>"} were
+ * interpolated inside a JavaScript string, it would break out of the context
+ * of the original script element and {@code evil} would execute. Also note
+ * that within an HTML script (raw text) element, HTML character references,
+ * such as "<" are not allowed. See
+ * http://www.w3.org/TR/html5/scripting-1.html#restrictions-for-contents-of-script-elements.
+ *
+ * @see goog.html.SafeScript#fromConstant
+ * @constructor
+ * @final
+ * @struct
+ * @implements {goog.string.TypedString}
+ */
+goog.html.SafeScript = function() {
+  /**
+   * The contained value of this SafeScript.  The field has a purposely
+   * ugly name to make (non-compiled) code that attempts to directly access this
+   * field stand out.
+   * @private {string}
+   */
+  this.privateDoNotAccessOrElseSafeScriptWrappedValue_ = '';
+
+  /**
+   * A type marker used to implement additional run-time type checking.
+   * @see goog.html.SafeScript#unwrap
+   * @const
+   * @private
+   */
+  this.SAFE_SCRIPT_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
+      goog.html.SafeScript.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.SafeScript.prototype.implementsGoogStringTypedString = true;
+
+
+/**
+ * Type marker for the SafeScript type, used to implement additional
+ * run-time type checking.
+ * @const {!Object}
+ * @private
+ */
+goog.html.SafeScript.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
+
+
+/**
+ * Creates a SafeScript object from a compile-time constant string.
+ *
+ * @param {!goog.string.Const} script A compile-time-constant string from which
+ *     to create a SafeScript.
+ * @return {!goog.html.SafeScript} A SafeScript object initialized to
+ *     {@code script}.
+ */
+goog.html.SafeScript.fromConstant = function(script) {
+  var scriptString = goog.string.Const.unwrap(script);
+  if (scriptString.length === 0) {
+    return goog.html.SafeScript.EMPTY;
+  }
+  return goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse(
+      scriptString);
+};
+
+
+/**
+ * Returns this SafeScript's value as a string.
+ *
+ * IMPORTANT: In code where it is security relevant that an object's type is
+ * indeed {@code SafeScript}, use {@code goog.html.SafeScript.unwrap} instead of
+ * this method. If in doubt, assume that it's security relevant. In particular,
+ * note that goog.html functions which return a goog.html type do not guarantee
+ * the returned instance is of the right type. For example:
+ *
+ * <pre>
+ * var fakeSafeHtml = new String('fake');
+ * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
+ * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
+ * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
+ * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
+ * // instanceof goog.html.SafeHtml.
+ * </pre>
+ *
+ * @see goog.html.SafeScript#unwrap
+ * @override
+ */
+goog.html.SafeScript.prototype.getTypedStringValue = function() {
+  return this.privateDoNotAccessOrElseSafeScriptWrappedValue_;
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a debug string-representation of this value.
+   *
+   * To obtain the actual string value wrapped in a SafeScript, use
+   * {@code goog.html.SafeScript.unwrap}.
+   *
+   * @see goog.html.SafeScript#unwrap
+   * @override
+   */
+  goog.html.SafeScript.prototype.toString = function() {
+    return 'SafeScript{' +
+        this.privateDoNotAccessOrElseSafeScriptWrappedValue_ + '}';
+  };
+}
+
+
+/**
+ * Performs a runtime check that the provided object is indeed a
+ * SafeScript object, and returns its value.
+ *
+ * @param {!goog.html.SafeScript} safeScript The object to extract from.
+ * @return {string} The safeScript object's contained string, unless
+ *     the run-time type check fails. In that case, {@code unwrap} returns an
+ *     innocuous string, or, if assertions are enabled, throws
+ *     {@code goog.asserts.AssertionError}.
+ */
+goog.html.SafeScript.unwrap = function(safeScript) {
+  // Perform additional Run-time type-checking to ensure that
+  // safeScript is indeed an instance of the expected type.  This
+  // provides some additional protection against security bugs due to
+  // application code that disables type checks.
+  // Specifically, the following checks are performed:
+  // 1. The object is an instance of the expected type.
+  // 2. The object is not an instance of a subclass.
+  // 3. The object carries a type marker for the expected type. "Faking" an
+  // object requires a reference to the type marker, which has names intended
+  // to stand out in code reviews.
+  if (safeScript instanceof goog.html.SafeScript &&
+      safeScript.constructor === goog.html.SafeScript &&
+      safeScript.SAFE_SCRIPT_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
+          goog.html.SafeScript.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
+    return safeScript.privateDoNotAccessOrElseSafeScriptWrappedValue_;
+  } else {
+    goog.asserts.fail('expected object of type SafeScript, got \'' +
+        safeScript + '\' of type ' + goog.typeOf(safeScript));
+    return 'type_error:SafeScript';
+  }
+};
+
+
+/**
+ * Package-internal utility method to create SafeScript instances.
+ *
+ * @param {string} script The string to initialize the SafeScript object with.
+ * @return {!goog.html.SafeScript} The initialized SafeScript object.
+ * @package
+ */
+goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse =
+    function(script) {
+  return new goog.html.SafeScript().initSecurityPrivateDoNotAccessOrElse_(
+      script);
+};
+
+
+/**
+ * Called from createSafeScriptSecurityPrivateDoNotAccessOrElse(). This
+ * method exists only so that the compiler can dead code eliminate static
+ * fields (like EMPTY) when they're not accessed.
+ * @param {string} script
+ * @return {!goog.html.SafeScript}
+ * @private
+ */
+goog.html.SafeScript.prototype.initSecurityPrivateDoNotAccessOrElse_ = function(
+    script) {
+  this.privateDoNotAccessOrElseSafeScriptWrappedValue_ = script;
+  return this;
+};
+
+
+/**
+ * A SafeScript instance corresponding to the empty string.
+ * @const {!goog.html.SafeScript}
+ */
+goog.html.SafeScript.EMPTY =
+    goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse('');

viz/out/goog/html/safestyle.js

@@ -0,0 +1,449 @@
+// Copyright 2014 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview The SafeStyle type and its builders.
+ *
+ * TODO(xtof): Link to document stating type contract.
+ */
+
+goog.provide('goog.html.SafeStyle');
+
+goog.require('goog.array');
+goog.require('goog.asserts');
+goog.require('goog.string');
+goog.require('goog.string.Const');
+goog.require('goog.string.TypedString');
+
+
+
+/**
+ * A string-like object which represents a sequence of CSS declarations
+ * ({@code propertyName1: propertyvalue1; propertyName2: propertyValue2; ...})
+ * and that carries the security type contract that its value, as a string,
+ * will not cause untrusted script execution (XSS) when evaluated as CSS in a
+ * browser.
+ *
+ * Instances of this type must be created via the factory methods
+ * ({@code goog.html.SafeStyle.create} or
+ * {@code goog.html.SafeStyle.fromConstant}) and not by invoking its
+ * constructor. The constructor intentionally takes no parameters and the type
+ * is immutable; hence only a default instance corresponding to the empty string
+ * can be obtained via constructor invocation.
+ *
+ * A SafeStyle's string representation ({@link #getTypedStringValue()}) can
+ * safely:
+ * <ul>
+ *   <li>Be interpolated as the entire content of a *quoted* HTML style
+ *       attribute, or before already existing properties. The SafeStyle string
+ *       *must be HTML-attribute-escaped* (where " and ' are escaped) before
+ *       interpolation.
+ *   <li>Be interpolated as the entire content of a {}-wrapped block within a
+ *       stylesheet, or before already existing properties. The SafeStyle string
+ *       should not be escaped before interpolation. SafeStyle's contract also
+ *       guarantees that the string will not be able to introduce new properties
+ *       or elide existing ones.
+ *   <li>Be assigned to the style property of a DOM node. The SafeStyle string
+ *       should not be escaped before being assigned to the property.
+ * </ul>
+ *
+ * A SafeStyle may never contain literal angle brackets. Otherwise, it could
+ * be unsafe to place a SafeStyle into a &lt;style&gt; tag (where it can't
+ * be HTML escaped). For example, if the SafeStyle containing
+ * "{@code font: 'foo &lt;style/&gt;&lt;script&gt;evil&lt;/script&gt;'}" were
+ * interpolated within a &lt;style&gt; tag, this would then break out of the
+ * style context into HTML.
+ *
+ * A SafeStyle may contain literal single or double quotes, and as such the
+ * entire style string must be escaped when used in a style attribute (if
+ * this were not the case, the string could contain a matching quote that
+ * would escape from the style attribute).
+ *
+ * Values of this type must be composable, i.e. for any two values
+ * {@code style1} and {@code style2} of this type,
+ * {@code goog.html.SafeStyle.unwrap(style1) +
+ * goog.html.SafeStyle.unwrap(style2)} must itself be a value that satisfies
+ * the SafeStyle type constraint. This requirement implies that for any value
+ * {@code style} of this type, {@code goog.html.SafeStyle.unwrap(style)} must
+ * not end in a "property value" or "property name" context. For example,
+ * a value of {@code background:url("} or {@code font-} would not satisfy the
+ * SafeStyle contract. This is because concatenating such strings with a
+ * second value that itself does not contain unsafe CSS can result in an
+ * overall string that does. For example, if {@code javascript:evil())"} is
+ * appended to {@code background:url("}, the resulting string may result in
+ * the execution of a malicious script.
+ *
+ * TODO(user): Consider whether we should implement UTF-8 interchange
+ * validity checks and blacklisting of newlines (including Unicode ones) and
+ * other whitespace characters (\t, \f). Document here if so and also update
+ * SafeStyle.fromConstant().
+ *
+ * The following example values comply with this type's contract:
+ * <ul>
+ *   <li><pre>width: 1em;</pre>
+ *   <li><pre>height:1em;</pre>
+ *   <li><pre>width: 1em;height: 1em;</pre>
+ *   <li><pre>background:url('http://url');</pre>
+ * </ul>
+ * In addition, the empty string is safe for use in a CSS attribute.
+ *
+ * The following example values do NOT comply with this type's contract:
+ * <ul>
+ *   <li><pre>background: red</pre> (missing a trailing semi-colon)
+ *   <li><pre>background:</pre> (missing a value and a trailing semi-colon)
+ *   <li><pre>1em</pre> (missing an attribute name, which provides context for
+ *       the value)
+ * </ul>
+ *
+ * @see goog.html.SafeStyle#create
+ * @see goog.html.SafeStyle#fromConstant
+ * @see http://www.w3.org/TR/css3-syntax/
+ * @constructor
+ * @final
+ * @struct
+ * @implements {goog.string.TypedString}
+ */
+goog.html.SafeStyle = function() {
+  /**
+   * The contained value of this SafeStyle.  The field has a purposely
+   * ugly name to make (non-compiled) code that attempts to directly access this
+   * field stand out.
+   * @private {string}
+   */
+  this.privateDoNotAccessOrElseSafeStyleWrappedValue_ = '';
+
+  /**
+   * A type marker used to implement additional run-time type checking.
+   * @see goog.html.SafeStyle#unwrap
+   * @const
+   * @private
+   */
+  this.SAFE_STYLE_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
+      goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.SafeStyle.prototype.implementsGoogStringTypedString = true;
+
+
+/**
+ * Type marker for the SafeStyle type, used to implement additional
+ * run-time type checking.
+ * @const {!Object}
+ * @private
+ */
+goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
+
+
+/**
+ * Creates a SafeStyle object from a compile-time constant string.
+ *
+ * {@code style} should be in the format
+ * {@code name: value; [name: value; ...]} and must not have any < or >
+ * characters in it. This is so that SafeStyle's contract is preserved,
+ * allowing the SafeStyle to correctly be interpreted as a sequence of CSS
+ * declarations and without affecting the syntactic structure of any
+ * surrounding CSS and HTML.
+ *
+ * This method performs basic sanity checks on the format of {@code style}
+ * but does not constrain the format of {@code name} and {@code value}, except
+ * for disallowing tag characters.
+ *
+ * @param {!goog.string.Const} style A compile-time-constant string from which
+ *     to create a SafeStyle.
+ * @return {!goog.html.SafeStyle} A SafeStyle object initialized to
+ *     {@code style}.
+ */
+goog.html.SafeStyle.fromConstant = function(style) {
+  var styleString = goog.string.Const.unwrap(style);
+  if (styleString.length === 0) {
+    return goog.html.SafeStyle.EMPTY;
+  }
+  goog.html.SafeStyle.checkStyle_(styleString);
+  goog.asserts.assert(
+      goog.string.endsWith(styleString, ';'),
+      'Last character of style string is not \';\': ' + styleString);
+  goog.asserts.assert(
+      goog.string.contains(styleString, ':'),
+      'Style string must contain at least one \':\', to ' +
+          'specify a "name: value" pair: ' + styleString);
+  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
+      styleString);
+};
+
+
+/**
+ * Checks if the style definition is valid.
+ * @param {string} style
+ * @private
+ */
+goog.html.SafeStyle.checkStyle_ = function(style) {
+  goog.asserts.assert(
+      !/[<>]/.test(style), 'Forbidden characters in style string: ' + style);
+};
+
+
+/**
+ * Returns this SafeStyle's value as a string.
+ *
+ * IMPORTANT: In code where it is security relevant that an object's type is
+ * indeed {@code SafeStyle}, use {@code goog.html.SafeStyle.unwrap} instead of
+ * this method. If in doubt, assume that it's security relevant. In particular,
+ * note that goog.html functions which return a goog.html type do not guarantee
+ * the returned instance is of the right type. For example:
+ *
+ * <pre>
+ * var fakeSafeHtml = new String('fake');
+ * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
+ * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
+ * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
+ * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
+ * // instanceof goog.html.SafeHtml.
+ * </pre>
+ *
+ * @see goog.html.SafeStyle#unwrap
+ * @override
+ */
+goog.html.SafeStyle.prototype.getTypedStringValue = function() {
+  return this.privateDoNotAccessOrElseSafeStyleWrappedValue_;
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a debug string-representation of this value.
+   *
+   * To obtain the actual string value wrapped in a SafeStyle, use
+   * {@code goog.html.SafeStyle.unwrap}.
+   *
+   * @see goog.html.SafeStyle#unwrap
+   * @override
+   */
+  goog.html.SafeStyle.prototype.toString = function() {
+    return 'SafeStyle{' + this.privateDoNotAccessOrElseSafeStyleWrappedValue_ +
+        '}';
+  };
+}
+
+
+/**
+ * Performs a runtime check that the provided object is indeed a
+ * SafeStyle object, and returns its value.
+ *
+ * @param {!goog.html.SafeStyle} safeStyle The object to extract from.
+ * @return {string} The safeStyle object's contained string, unless
+ *     the run-time type check fails. In that case, {@code unwrap} returns an
+ *     innocuous string, or, if assertions are enabled, throws
+ *     {@code goog.asserts.AssertionError}.
+ */
+goog.html.SafeStyle.unwrap = function(safeStyle) {
+  // Perform additional Run-time type-checking to ensure that
+  // safeStyle is indeed an instance of the expected type.  This
+  // provides some additional protection against security bugs due to
+  // application code that disables type checks.
+  // Specifically, the following checks are performed:
+  // 1. The object is an instance of the expected type.
+  // 2. The object is not an instance of a subclass.
+  // 3. The object carries a type marker for the expected type. "Faking" an
+  // object requires a reference to the type marker, which has names intended
+  // to stand out in code reviews.
+  if (safeStyle instanceof goog.html.SafeStyle &&
+      safeStyle.constructor === goog.html.SafeStyle &&
+      safeStyle.SAFE_STYLE_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
+          goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
+    return safeStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
+  } else {
+    goog.asserts.fail('expected object of type SafeStyle, got \'' +
+        safeStyle + '\' of type ' + goog.typeOf(safeStyle));
+    return 'type_error:SafeStyle';
+  }
+};
+
+
+/**
+ * Package-internal utility method to create SafeStyle instances.
+ *
+ * @param {string} style The string to initialize the SafeStyle object with.
+ * @return {!goog.html.SafeStyle} The initialized SafeStyle object.
+ * @package
+ */
+goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse = function(
+    style) {
+  return new goog.html.SafeStyle().initSecurityPrivateDoNotAccessOrElse_(style);
+};
+
+
+/**
+ * Called from createSafeStyleSecurityPrivateDoNotAccessOrElse(). This
+ * method exists only so that the compiler can dead code eliminate static
+ * fields (like EMPTY) when they're not accessed.
+ * @param {string} style
+ * @return {!goog.html.SafeStyle}
+ * @private
+ */
+goog.html.SafeStyle.prototype.initSecurityPrivateDoNotAccessOrElse_ = function(
+    style) {
+  this.privateDoNotAccessOrElseSafeStyleWrappedValue_ = style;
+  return this;
+};
+
+
+/**
+ * A SafeStyle instance corresponding to the empty string.
+ * @const {!goog.html.SafeStyle}
+ */
+goog.html.SafeStyle.EMPTY =
+    goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse('');
+
+
+/**
+ * The innocuous string generated by goog.html.SafeUrl.create when passed
+ * an unsafe value.
+ * @const {string}
+ */
+goog.html.SafeStyle.INNOCUOUS_STRING = 'zClosurez';
+
+
+/**
+ * Mapping of property names to their values.
+ * @typedef {!Object<string, goog.string.Const|string>}
+ */
+goog.html.SafeStyle.PropertyMap;
+
+
+/**
+ * Creates a new SafeStyle object from the properties specified in the map.
+ * @param {goog.html.SafeStyle.PropertyMap} map Mapping of property names to
+ *     their values, for example {'margin': '1px'}. Names must consist of
+ *     [-_a-zA-Z0-9]. Values might be strings consisting of
+ *     [-,.'"%_!# a-zA-Z0-9], where " and ' must be properly balanced.
+ *     Other values must be wrapped in goog.string.Const. Null value causes
+ *     skipping the property.
+ * @return {!goog.html.SafeStyle}
+ * @throws {Error} If invalid name is provided.
+ * @throws {goog.asserts.AssertionError} If invalid value is provided. With
+ *     disabled assertions, invalid value is replaced by
+ *     goog.html.SafeStyle.INNOCUOUS_STRING.
+ */
+goog.html.SafeStyle.create = function(map) {
+  var style = '';
+  for (var name in map) {
+    if (!/^[-_a-zA-Z0-9]+$/.test(name)) {
+      throw Error('Name allows only [-_a-zA-Z0-9], got: ' + name);
+    }
+    var value = map[name];
+    if (value == null) {
+      continue;
+    }
+    if (value instanceof goog.string.Const) {
+      value = goog.string.Const.unwrap(value);
+      // These characters can be used to change context and we don't want that
+      // even with const values.
+      goog.asserts.assert(!/[{;}]/.test(value), 'Value does not allow [{;}].');
+    } else if (!goog.html.SafeStyle.VALUE_RE_.test(value)) {
+      goog.asserts.fail(
+          'String value allows only [-,."\'%_!# a-zA-Z0-9], rgb() and ' +
+          'rgba(), got: ' + value);
+      value = goog.html.SafeStyle.INNOCUOUS_STRING;
+    } else if (!goog.html.SafeStyle.hasBalancedQuotes_(value)) {
+      goog.asserts.fail('String value requires balanced quotes, got: ' + value);
+      value = goog.html.SafeStyle.INNOCUOUS_STRING;
+    }
+    style += name + ':' + value + ';';
+  }
+  if (!style) {
+    return goog.html.SafeStyle.EMPTY;
+  }
+  goog.html.SafeStyle.checkStyle_(style);
+  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
+      style);
+};
+
+
+/**
+ * Checks that quotes (" and ') are properly balanced inside a string. Assumes
+ * that neither escape (\) nor any other character that could result in
+ * breaking out of a string parsing context are allowed;
+ * see http://www.w3.org/TR/css3-syntax/#string-token-diagram.
+ * @param {string} value Untrusted CSS property value.
+ * @return {boolean} True if property value is safe with respect to quote
+ *     balancedness.
+ * @private
+ */
+goog.html.SafeStyle.hasBalancedQuotes_ = function(value) {
+  var outsideSingle = true;
+  var outsideDouble = true;
+  for (var i = 0; i < value.length; i++) {
+    var c = value.charAt(i);
+    if (c == "'" && outsideDouble) {
+      outsideSingle = !outsideSingle;
+    } else if (c == '"' && outsideSingle) {
+      outsideDouble = !outsideDouble;
+    }
+  }
+  return outsideSingle && outsideDouble;
+};
+
+
+// Keep in sync with the error string in create().
+/**
+ * Regular expression for safe values.
+ *
+ * Quotes (" and ') are allowed, but a check must be done elsewhere to ensure
+ * they're balanced.
+ *
+ * ',' allows multiple values to be assigned to the same property
+ * (e.g. background-attachment or font-family) and hence could allow
+ * multiple values to get injected, but that should pose no risk of XSS.
+ *
+ * The rgb() and rgba() expression checks only for XSS safety, not for CSS
+ * validity.
+ * @const {!RegExp}
+ * @private
+ */
+goog.html.SafeStyle.VALUE_RE_ =
+    /^([-,."'%_!# a-zA-Z0-9]+|(?:rgb|hsl)a?\([0-9.%, ]+\))$/;
+
+
+/**
+ * Creates a new SafeStyle object by concatenating the values.
+ * @param {...(!goog.html.SafeStyle|!Array<!goog.html.SafeStyle>)} var_args
+ *     SafeStyles to concatenate.
+ * @return {!goog.html.SafeStyle}
+ */
+goog.html.SafeStyle.concat = function(var_args) {
+  var style = '';
+
+  /**
+   * @param {!goog.html.SafeStyle|!Array<!goog.html.SafeStyle>} argument
+   */
+  var addArgument = function(argument) {
+    if (goog.isArray(argument)) {
+      goog.array.forEach(argument, addArgument);
+    } else {
+      style += goog.html.SafeStyle.unwrap(argument);
+    }
+  };
+
+  goog.array.forEach(arguments, addArgument);
+  if (!style) {
+    return goog.html.SafeStyle.EMPTY;
+  }
+  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
+      style);
+};

viz/out/goog/html/safestylesheet.js

@@ -0,0 +1,278 @@
+// Copyright 2014 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview The SafeStyleSheet type and its builders.
+ *
+ * TODO(xtof): Link to document stating type contract.
+ */
+
+goog.provide('goog.html.SafeStyleSheet');
+
+goog.require('goog.array');
+goog.require('goog.asserts');
+goog.require('goog.string');
+goog.require('goog.string.Const');
+goog.require('goog.string.TypedString');
+
+
+
+/**
+ * A string-like object which represents a CSS style sheet and that carries the
+ * security type contract that its value, as a string, will not cause untrusted
+ * script execution (XSS) when evaluated as CSS in a browser.
+ *
+ * Instances of this type must be created via the factory method
+ * {@code goog.html.SafeStyleSheet.fromConstant} and not by invoking its
+ * constructor. The constructor intentionally takes no parameters and the type
+ * is immutable; hence only a default instance corresponding to the empty string
+ * can be obtained via constructor invocation.
+ *
+ * A SafeStyleSheet's string representation can safely be interpolated as the
+ * content of a style element within HTML. The SafeStyleSheet string should
+ * not be escaped before interpolation.
+ *
+ * Values of this type must be composable, i.e. for any two values
+ * {@code styleSheet1} and {@code styleSheet2} of this type,
+ * {@code goog.html.SafeStyleSheet.unwrap(styleSheet1) +
+ * goog.html.SafeStyleSheet.unwrap(styleSheet2)} must itself be a value that
+ * satisfies the SafeStyleSheet type constraint. This requirement implies that
+ * for any value {@code styleSheet} of this type,
+ * {@code goog.html.SafeStyleSheet.unwrap(styleSheet1)} must end in
+ * "beginning of rule" context.
+
+ * A SafeStyleSheet can be constructed via security-reviewed unchecked
+ * conversions. In this case producers of SafeStyleSheet must ensure themselves
+ * that the SafeStyleSheet does not contain unsafe script. Note in particular
+ * that {@code <} is dangerous, even when inside CSS strings, and so should
+ * always be forbidden or CSS-escaped in user controlled input. For example, if
+ * {@code </style><script>evil</script>"} were interpolated
+ * inside a CSS string, it would break out of the context of the original
+ * style element and {@code evil} would execute. Also note that within an HTML
+ * style (raw text) element, HTML character references, such as
+ * {@code <}, are not allowed. See
+ *
+ http://www.w3.org/TR/html5/scripting-1.html#restrictions-for-contents-of-script-elements
+ * (similar considerations apply to the style element).
+ *
+ * @see goog.html.SafeStyleSheet#fromConstant
+ * @constructor
+ * @final
+ * @struct
+ * @implements {goog.string.TypedString}
+ */
+goog.html.SafeStyleSheet = function() {
+  /**
+   * The contained value of this SafeStyleSheet.  The field has a purposely
+   * ugly name to make (non-compiled) code that attempts to directly access this
+   * field stand out.
+   * @private {string}
+   */
+  this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_ = '';
+
+  /**
+   * A type marker used to implement additional run-time type checking.
+   * @see goog.html.SafeStyleSheet#unwrap
+   * @const
+   * @private
+   */
+  this.SAFE_STYLE_SHEET_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
+      goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.SafeStyleSheet.prototype.implementsGoogStringTypedString = true;
+
+
+/**
+ * Type marker for the SafeStyleSheet type, used to implement additional
+ * run-time type checking.
+ * @const {!Object}
+ * @private
+ */
+goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
+
+
+/**
+ * Creates a new SafeStyleSheet object by concatenating values.
+ * @param {...(!goog.html.SafeStyleSheet|!Array<!goog.html.SafeStyleSheet>)}
+ *     var_args Values to concatenate.
+ * @return {!goog.html.SafeStyleSheet}
+ */
+goog.html.SafeStyleSheet.concat = function(var_args) {
+  var result = '';
+
+  /**
+   * @param {!goog.html.SafeStyleSheet|!Array<!goog.html.SafeStyleSheet>}
+   *     argument
+   */
+  var addArgument = function(argument) {
+    if (goog.isArray(argument)) {
+      goog.array.forEach(argument, addArgument);
+    } else {
+      result += goog.html.SafeStyleSheet.unwrap(argument);
+    }
+  };
+
+  goog.array.forEach(arguments, addArgument);
+  return goog.html.SafeStyleSheet
+      .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(result);
+};
+
+
+/**
+ * Creates a SafeStyleSheet object from a compile-time constant string.
+ *
+ * {@code styleSheet} must not have any &lt; characters in it, so that
+ * the syntactic structure of the surrounding HTML is not affected.
+ *
+ * @param {!goog.string.Const} styleSheet A compile-time-constant string from
+ *     which to create a SafeStyleSheet.
+ * @return {!goog.html.SafeStyleSheet} A SafeStyleSheet object initialized to
+ *     {@code styleSheet}.
+ */
+goog.html.SafeStyleSheet.fromConstant = function(styleSheet) {
+  var styleSheetString = goog.string.Const.unwrap(styleSheet);
+  if (styleSheetString.length === 0) {
+    return goog.html.SafeStyleSheet.EMPTY;
+  }
+  // > is a valid character in CSS selectors and there's no strict need to
+  // block it if we already block <.
+  goog.asserts.assert(
+      !goog.string.contains(styleSheetString, '<'),
+      "Forbidden '<' character in style sheet string: " + styleSheetString);
+  return goog.html.SafeStyleSheet
+      .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(styleSheetString);
+};
+
+
+/**
+ * Returns this SafeStyleSheet's value as a string.
+ *
+ * IMPORTANT: In code where it is security relevant that an object's type is
+ * indeed {@code SafeStyleSheet}, use {@code goog.html.SafeStyleSheet.unwrap}
+ * instead of this method. If in doubt, assume that it's security relevant. In
+ * particular, note that goog.html functions which return a goog.html type do
+ * not guarantee the returned instance is of the right type. For example:
+ *
+ * <pre>
+ * var fakeSafeHtml = new String('fake');
+ * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
+ * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
+ * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
+ * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
+ * // instanceof goog.html.SafeHtml.
+ * </pre>
+ *
+ * @see goog.html.SafeStyleSheet#unwrap
+ * @override
+ */
+goog.html.SafeStyleSheet.prototype.getTypedStringValue = function() {
+  return this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_;
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a debug string-representation of this value.
+   *
+   * To obtain the actual string value wrapped in a SafeStyleSheet, use
+   * {@code goog.html.SafeStyleSheet.unwrap}.
+   *
+   * @see goog.html.SafeStyleSheet#unwrap
+   * @override
+   */
+  goog.html.SafeStyleSheet.prototype.toString = function() {
+    return 'SafeStyleSheet{' +
+        this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_ + '}';
+  };
+}
+
+
+/**
+ * Performs a runtime check that the provided object is indeed a
+ * SafeStyleSheet object, and returns its value.
+ *
+ * @param {!goog.html.SafeStyleSheet} safeStyleSheet The object to extract from.
+ * @return {string} The safeStyleSheet object's contained string, unless
+ *     the run-time type check fails. In that case, {@code unwrap} returns an
+ *     innocuous string, or, if assertions are enabled, throws
+ *     {@code goog.asserts.AssertionError}.
+ */
+goog.html.SafeStyleSheet.unwrap = function(safeStyleSheet) {
+  // Perform additional Run-time type-checking to ensure that
+  // safeStyleSheet is indeed an instance of the expected type.  This
+  // provides some additional protection against security bugs due to
+  // application code that disables type checks.
+  // Specifically, the following checks are performed:
+  // 1. The object is an instance of the expected type.
+  // 2. The object is not an instance of a subclass.
+  // 3. The object carries a type marker for the expected type. "Faking" an
+  // object requires a reference to the type marker, which has names intended
+  // to stand out in code reviews.
+  if (safeStyleSheet instanceof goog.html.SafeStyleSheet &&
+      safeStyleSheet.constructor === goog.html.SafeStyleSheet &&
+      safeStyleSheet
+              .SAFE_STYLE_SHEET_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
+          goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
+    return safeStyleSheet.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_;
+  } else {
+    goog.asserts.fail('expected object of type SafeStyleSheet, got \'' +
+        safeStyleSheet + '\' of type ' + goog.typeOf(safeStyleSheet));
+    return 'type_error:SafeStyleSheet';
+  }
+};
+
+
+/**
+ * Package-internal utility method to create SafeStyleSheet instances.
+ *
+ * @param {string} styleSheet The string to initialize the SafeStyleSheet
+ *     object with.
+ * @return {!goog.html.SafeStyleSheet} The initialized SafeStyleSheet object.
+ * @package
+ */
+goog.html.SafeStyleSheet.createSafeStyleSheetSecurityPrivateDoNotAccessOrElse =
+    function(styleSheet) {
+  return new goog.html.SafeStyleSheet().initSecurityPrivateDoNotAccessOrElse_(
+      styleSheet);
+};
+
+
+/**
+ * Called from createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(). This
+ * method exists only so that the compiler can dead code eliminate static
+ * fields (like EMPTY) when they're not accessed.
+ * @param {string} styleSheet
+ * @return {!goog.html.SafeStyleSheet}
+ * @private
+ */
+goog.html.SafeStyleSheet.prototype.initSecurityPrivateDoNotAccessOrElse_ =
+    function(styleSheet) {
+  this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_ = styleSheet;
+  return this;
+};
+
+
+/**
+ * A SafeStyleSheet instance corresponding to the empty string.
+ * @const {!goog.html.SafeStyleSheet}
+ */
+goog.html.SafeStyleSheet.EMPTY =
+    goog.html.SafeStyleSheet
+        .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse('');

viz/out/goog/html/safeurl.js

@@ -0,0 +1,412 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview The SafeUrl type and its builders.
+ *
+ * TODO(xtof): Link to document stating type contract.
+ */
+
+goog.provide('goog.html.SafeUrl');
+
+goog.require('goog.asserts');
+goog.require('goog.fs.url');
+goog.require('goog.i18n.bidi.Dir');
+goog.require('goog.i18n.bidi.DirectionalString');
+goog.require('goog.string');
+goog.require('goog.string.Const');
+goog.require('goog.string.TypedString');
+
+
+
+/**
+ * A string that is safe to use in URL context in DOM APIs and HTML documents.
+ *
+ * A SafeUrl is a string-like object that carries the security type contract
+ * that its value as a string will not cause untrusted script execution
+ * when evaluated as a hyperlink URL in a browser.
+ *
+ * Values of this type are guaranteed to be safe to use in URL/hyperlink
+ * contexts, such as, assignment to URL-valued DOM properties, or
+ * interpolation into a HTML template in URL context (e.g., inside a href
+ * attribute), in the sense that the use will not result in a
+ * Cross-Site-Scripting vulnerability.
+ *
+ * Note that, as documented in {@code goog.html.SafeUrl.unwrap}, this type's
+ * contract does not guarantee that instances are safe to interpolate into HTML
+ * without appropriate escaping.
+ *
+ * Note also that this type's contract does not imply any guarantees regarding
+ * the resource the URL refers to.  In particular, SafeUrls are <b>not</b>
+ * safe to use in a context where the referred-to resource is interpreted as
+ * trusted code, e.g., as the src of a script tag.
+ *
+ * Instances of this type must be created via the factory methods
+ * ({@code goog.html.SafeUrl.fromConstant}, {@code goog.html.SafeUrl.sanitize}),
+ * etc and not by invoking its constructor.  The constructor intentionally
+ * takes no parameters and the type is immutable; hence only a default instance
+ * corresponding to the empty string can be obtained via constructor invocation.
+ *
+ * @see goog.html.SafeUrl#fromConstant
+ * @see goog.html.SafeUrl#from
+ * @see goog.html.SafeUrl#sanitize
+ * @constructor
+ * @final
+ * @struct
+ * @implements {goog.i18n.bidi.DirectionalString}
+ * @implements {goog.string.TypedString}
+ */
+goog.html.SafeUrl = function() {
+  /**
+   * The contained value of this SafeUrl.  The field has a purposely ugly
+   * name to make (non-compiled) code that attempts to directly access this
+   * field stand out.
+   * @private {string}
+   */
+  this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = '';
+
+  /**
+   * A type marker used to implement additional run-time type checking.
+   * @see goog.html.SafeUrl#unwrap
+   * @const
+   * @private
+   */
+  this.SAFE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
+      goog.html.SafeUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
+};
+
+
+/**
+ * The innocuous string generated by goog.html.SafeUrl.sanitize when passed
+ * an unsafe URL.
+ *
+ * about:invalid is registered in
+ * http://www.w3.org/TR/css3-values/#about-invalid.
+ * http://tools.ietf.org/html/rfc6694#section-2.2.1 permits about URLs to
+ * contain a fragment, which is not to be considered when determining if an
+ * about URL is well-known.
+ *
+ * Using about:invalid seems preferable to using a fixed data URL, since
+ * browsers might choose to not report CSP violations on it, as legitimate
+ * CSS function calls to attr() can result in this URL being produced. It is
+ * also a standard URL which matches exactly the semantics we need:
+ * "The about:invalid URI references a non-existent document with a generic
+ * error condition. It can be used when a URI is necessary, but the default
+ * value shouldn't be resolveable as any type of document".
+ *
+ * @const {string}
+ */
+goog.html.SafeUrl.INNOCUOUS_STRING = 'about:invalid#zClosurez';
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.SafeUrl.prototype.implementsGoogStringTypedString = true;
+
+
+/**
+ * Returns this SafeUrl's value a string.
+ *
+ * IMPORTANT: In code where it is security relevant that an object's type is
+ * indeed {@code SafeUrl}, use {@code goog.html.SafeUrl.unwrap} instead of this
+ * method. If in doubt, assume that it's security relevant. In particular, note
+ * that goog.html functions which return a goog.html type do not guarantee that
+ * the returned instance is of the right type. For example:
+ *
+ * <pre>
+ * var fakeSafeHtml = new String('fake');
+ * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
+ * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
+ * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
+ * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml instanceof
+ * // goog.html.SafeHtml.
+ * </pre>
+ *
+ * IMPORTANT: The guarantees of the SafeUrl type contract only extend to the
+ * behavior of browsers when interpreting URLs. Values of SafeUrl objects MUST
+ * be appropriately escaped before embedding in a HTML document. Note that the
+ * required escaping is context-sensitive (e.g. a different escaping is
+ * required for embedding a URL in a style property within a style
+ * attribute, as opposed to embedding in a href attribute).
+ *
+ * @see goog.html.SafeUrl#unwrap
+ * @override
+ */
+goog.html.SafeUrl.prototype.getTypedStringValue = function() {
+  return this.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.SafeUrl.prototype.implementsGoogI18nBidiDirectionalString = true;
+
+
+/**
+ * Returns this URLs directionality, which is always {@code LTR}.
+ * @override
+ */
+goog.html.SafeUrl.prototype.getDirection = function() {
+  return goog.i18n.bidi.Dir.LTR;
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a debug string-representation of this value.
+   *
+   * To obtain the actual string value wrapped in a SafeUrl, use
+   * {@code goog.html.SafeUrl.unwrap}.
+   *
+   * @see goog.html.SafeUrl#unwrap
+   * @override
+   */
+  goog.html.SafeUrl.prototype.toString = function() {
+    return 'SafeUrl{' + this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ +
+        '}';
+  };
+}
+
+
+/**
+ * Performs a runtime check that the provided object is indeed a SafeUrl
+ * object, and returns its value.
+ *
+ * IMPORTANT: The guarantees of the SafeUrl type contract only extend to the
+ * behavior of  browsers when interpreting URLs. Values of SafeUrl objects MUST
+ * be appropriately escaped before embedding in a HTML document. Note that the
+ * required escaping is context-sensitive (e.g. a different escaping is
+ * required for embedding a URL in a style property within a style
+ * attribute, as opposed to embedding in a href attribute).
+ *
+ * @param {!goog.html.SafeUrl} safeUrl The object to extract from.
+ * @return {string} The SafeUrl object's contained string, unless the run-time
+ *     type check fails. In that case, {@code unwrap} returns an innocuous
+ *     string, or, if assertions are enabled, throws
+ *     {@code goog.asserts.AssertionError}.
+ */
+goog.html.SafeUrl.unwrap = function(safeUrl) {
+  // Perform additional Run-time type-checking to ensure that safeUrl is indeed
+  // an instance of the expected type.  This provides some additional protection
+  // against security bugs due to application code that disables type checks.
+  // Specifically, the following checks are performed:
+  // 1. The object is an instance of the expected type.
+  // 2. The object is not an instance of a subclass.
+  // 3. The object carries a type marker for the expected type. "Faking" an
+  // object requires a reference to the type marker, which has names intended
+  // to stand out in code reviews.
+  if (safeUrl instanceof goog.html.SafeUrl &&
+      safeUrl.constructor === goog.html.SafeUrl &&
+      safeUrl.SAFE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
+          goog.html.SafeUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
+    return safeUrl.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
+  } else {
+    goog.asserts.fail('expected object of type SafeUrl, got \'' +
+        safeUrl + '\' of type ' + goog.typeOf(safeUrl));
+    return 'type_error:SafeUrl';
+  }
+};
+
+
+/**
+ * Creates a SafeUrl object from a compile-time constant string.
+ *
+ * Compile-time constant strings are inherently program-controlled and hence
+ * trusted.
+ *
+ * @param {!goog.string.Const} url A compile-time-constant string from which to
+ *         create a SafeUrl.
+ * @return {!goog.html.SafeUrl} A SafeUrl object initialized to {@code url}.
+ */
+goog.html.SafeUrl.fromConstant = function(url) {
+  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
+      goog.string.Const.unwrap(url));
+};
+
+
+/**
+ * A pattern that matches Blob or data types that can have SafeUrls created
+ * from URL.createObjectURL(blob) or via a data: URI.  Only matches image and
+ * video types, currently.
+ * @const
+ * @private
+ */
+goog.html.SAFE_MIME_TYPE_PATTERN_ =
+    /^(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm))$/i;
+
+
+/**
+ * Creates a SafeUrl wrapping a blob URL for the given {@code blob}.
+ *
+ * The blob URL is created with {@code URL.createObjectURL}. If the MIME type
+ * for {@code blob} is not of a known safe image or video MIME type, then the
+ * SafeUrl will wrap {@link #INNOCUOUS_STRING}.
+ *
+ * @see http://www.w3.org/TR/FileAPI/#url
+ * @param {!Blob} blob
+ * @return {!goog.html.SafeUrl} The blob URL, or an innocuous string wrapped
+ *   as a SafeUrl.
+ */
+goog.html.SafeUrl.fromBlob = function(blob) {
+  var url = goog.html.SAFE_MIME_TYPE_PATTERN_.test(blob.type) ?
+      goog.fs.url.createObjectUrl(blob) :
+      goog.html.SafeUrl.INNOCUOUS_STRING;
+  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(url);
+};
+
+
+/**
+ * Matches a base-64 data URL, with the first match group being the MIME type.
+ * @const
+ * @private
+ */
+goog.html.DATA_URL_PATTERN_ = /^data:([^;,]*);base64,[a-z0-9+\/]+=*$/i;
+
+
+/**
+ * Creates a SafeUrl wrapping a data: URL, after validating it matches a
+ * known-safe image or video MIME type.
+ *
+ * @param {string} dataUrl A valid base64 data URL with one of the whitelisted
+ *     image or video MIME types.
+ * @return {!goog.html.SafeUrl} A matching safe URL, or {@link INNOCUOUS_STRING}
+ *     wrapped as a SafeUrl if it does not pass.
+ */
+goog.html.SafeUrl.fromDataUrl = function(dataUrl) {
+  // There's a slight risk here that a browser sniffs the content type if it
+  // doesn't know the MIME type and executes HTML within the data: URL. For this
+  // to cause XSS it would also have to execute the HTML in the same origin
+  // of the page with the link. It seems unlikely that both of these will
+  // happen, particularly in not really old IEs.
+  var match = dataUrl.match(goog.html.DATA_URL_PATTERN_);
+  var valid = match && goog.html.SAFE_MIME_TYPE_PATTERN_.test(match[1]);
+  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
+      valid ? dataUrl : goog.html.SafeUrl.INNOCUOUS_STRING);
+};
+
+
+/**
+ * Creates a SafeUrl wrapping a tel: URL.
+ *
+ * @param {string} telUrl A tel URL.
+ * @return {!goog.html.SafeUrl} A matching safe URL, or {@link INNOCUOUS_STRING}
+ *     wrapped as a SafeUrl if it does not pass.
+ */
+goog.html.SafeUrl.fromTelUrl = function(telUrl) {
+  // There's a risk that a tel: URL could immediately place a call once
+  // clicked, without requiring user confirmation. For that reason it is
+  // handled in this separate function.
+  if (!goog.string.caseInsensitiveStartsWith(telUrl, 'tel:')) {
+    telUrl = goog.html.SafeUrl.INNOCUOUS_STRING;
+  }
+  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
+      telUrl);
+};
+
+
+/**
+ * A pattern that recognizes a commonly useful subset of URLs that satisfy
+ * the SafeUrl contract.
+ *
+ * This regular expression matches a subset of URLs that will not cause script
+ * execution if used in URL context within a HTML document. Specifically, this
+ * regular expression matches if (comment from here on and regex copied from
+ * Soy's EscapingConventions):
+ * (1) Either a protocol in a whitelist (http, https, mailto or ftp).
+ * (2) or no protocol.  A protocol must be followed by a colon. The below
+ *     allows that by allowing colons only after one of the characters [/?#].
+ *     A colon after a hash (#) must be in the fragment.
+ *     Otherwise, a colon after a (?) must be in a query.
+ *     Otherwise, a colon after a single solidus (/) must be in a path.
+ *     Otherwise, a colon after a double solidus (//) must be in the authority
+ *     (before port).
+ *
+ * The pattern disallows &, used in HTML entity declarations before
+ * one of the characters in [/?#]. This disallows HTML entities used in the
+ * protocol name, which should never happen, e.g. "h&#116;tp" for "http".
+ * It also disallows HTML entities in the first path part of a relative path,
+ * e.g. "foo&lt;bar/baz".  Our existing escaping functions should not produce
+ * that. More importantly, it disallows masking of a colon,
+ * e.g. "javascript&#58;...".
+ *
+ * @private
+ * @const {!RegExp}
+ */
+goog.html.SAFE_URL_PATTERN_ =
+    /^(?:(?:https?|mailto|ftp):|[^&:/?#]*(?:[/?#]|$))/i;
+
+
+/**
+ * Creates a SafeUrl object from {@code url}. If {@code url} is a
+ * goog.html.SafeUrl then it is simply returned. Otherwise the input string is
+ * validated to match a pattern of commonly used safe URLs.
+ *
+ * {@code url} may be a URL with the http, https, mailto or ftp scheme,
+ * or a relative URL (i.e., a URL without a scheme; specifically, a
+ * scheme-relative, absolute-path-relative, or path-relative URL).
+ *
+ * @see http://url.spec.whatwg.org/#concept-relative-url
+ * @param {string|!goog.string.TypedString} url The URL to validate.
+ * @return {!goog.html.SafeUrl} The validated URL, wrapped as a SafeUrl.
+ */
+goog.html.SafeUrl.sanitize = function(url) {
+  if (url instanceof goog.html.SafeUrl) {
+    return url;
+  } else if (url.implementsGoogStringTypedString) {
+    url = url.getTypedStringValue();
+  } else {
+    url = String(url);
+  }
+  if (!goog.html.SAFE_URL_PATTERN_.test(url)) {
+    url = goog.html.SafeUrl.INNOCUOUS_STRING;
+  }
+  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(url);
+};
+
+
+/**
+ * Type marker for the SafeUrl type, used to implement additional run-time
+ * type checking.
+ * @const {!Object}
+ * @private
+ */
+goog.html.SafeUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
+
+
+/**
+ * Package-internal utility method to create SafeUrl instances.
+ *
+ * @param {string} url The string to initialize the SafeUrl object with.
+ * @return {!goog.html.SafeUrl} The initialized SafeUrl object.
+ * @package
+ */
+goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse = function(
+    url) {
+  var safeUrl = new goog.html.SafeUrl();
+  safeUrl.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = url;
+  return safeUrl;
+};
+
+
+/**
+ * A SafeUrl corresponding to the special about:blank url.
+ * @const {!goog.html.SafeUrl}
+ */
+goog.html.SafeUrl.ABOUT_BLANK =
+    goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
+        'about:blank');

viz/out/goog/html/trustedresourceurl.js

@@ -0,0 +1,244 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview The TrustedResourceUrl type and its builders.
+ *
+ * TODO(xtof): Link to document stating type contract.
+ */
+
+goog.provide('goog.html.TrustedResourceUrl');
+
+goog.require('goog.asserts');
+goog.require('goog.i18n.bidi.Dir');
+goog.require('goog.i18n.bidi.DirectionalString');
+goog.require('goog.string.Const');
+goog.require('goog.string.TypedString');
+
+
+
+/**
+ * A URL which is under application control and from which script, CSS, and
+ * other resources that represent executable code, can be fetched.
+ *
+ * Given that the URL can only be constructed from strings under application
+ * control and is used to load resources, bugs resulting in a malformed URL
+ * should not have a security impact and are likely to be easily detectable
+ * during testing. Given the wide number of non-RFC compliant URLs in use,
+ * stricter validation could prevent some applications from being able to use
+ * this type.
+ *
+ * Instances of this type must be created via the factory method,
+ * ({@code goog.html.TrustedResourceUrl.fromConstant}), and not by invoking its
+ * constructor. The constructor intentionally takes no parameters and the type
+ * is immutable; hence only a default instance corresponding to the empty
+ * string can be obtained via constructor invocation.
+ *
+ * @see goog.html.TrustedResourceUrl#fromConstant
+ * @constructor
+ * @final
+ * @struct
+ * @implements {goog.i18n.bidi.DirectionalString}
+ * @implements {goog.string.TypedString}
+ */
+goog.html.TrustedResourceUrl = function() {
+  /**
+   * The contained value of this TrustedResourceUrl.  The field has a purposely
+   * ugly name to make (non-compiled) code that attempts to directly access this
+   * field stand out.
+   * @private {string}
+   */
+  this.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_ = '';
+
+  /**
+   * A type marker used to implement additional run-time type checking.
+   * @see goog.html.TrustedResourceUrl#unwrap
+   * @const
+   * @private
+   */
+  this.TRUSTED_RESOURCE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
+      goog.html.TrustedResourceUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.TrustedResourceUrl.prototype.implementsGoogStringTypedString = true;
+
+
+/**
+ * Returns this TrustedResourceUrl's value as a string.
+ *
+ * IMPORTANT: In code where it is security relevant that an object's type is
+ * indeed {@code TrustedResourceUrl}, use
+ * {@code goog.html.TrustedResourceUrl.unwrap} instead of this method. If in
+ * doubt, assume that it's security relevant. In particular, note that
+ * goog.html functions which return a goog.html type do not guarantee that
+ * the returned instance is of the right type. For example:
+ *
+ * <pre>
+ * var fakeSafeHtml = new String('fake');
+ * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
+ * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
+ * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
+ * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml instanceof
+ * // goog.html.SafeHtml.
+ * </pre>
+ *
+ * @see goog.html.TrustedResourceUrl#unwrap
+ * @override
+ */
+goog.html.TrustedResourceUrl.prototype.getTypedStringValue = function() {
+  return this.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.html.TrustedResourceUrl.prototype.implementsGoogI18nBidiDirectionalString =
+    true;
+
+
+/**
+ * Returns this URLs directionality, which is always {@code LTR}.
+ * @override
+ */
+goog.html.TrustedResourceUrl.prototype.getDirection = function() {
+  return goog.i18n.bidi.Dir.LTR;
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a debug string-representation of this value.
+   *
+   * To obtain the actual string value wrapped in a TrustedResourceUrl, use
+   * {@code goog.html.TrustedResourceUrl.unwrap}.
+   *
+   * @see goog.html.TrustedResourceUrl#unwrap
+   * @override
+   */
+  goog.html.TrustedResourceUrl.prototype.toString = function() {
+    return 'TrustedResourceUrl{' +
+        this.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_ + '}';
+  };
+}
+
+
+/**
+ * Performs a runtime check that the provided object is indeed a
+ * TrustedResourceUrl object, and returns its value.
+ *
+ * @param {!goog.html.TrustedResourceUrl} trustedResourceUrl The object to
+ *     extract from.
+ * @return {string} The trustedResourceUrl object's contained string, unless
+ *     the run-time type check fails. In that case, {@code unwrap} returns an
+ *     innocuous string, or, if assertions are enabled, throws
+ *     {@code goog.asserts.AssertionError}.
+ */
+goog.html.TrustedResourceUrl.unwrap = function(trustedResourceUrl) {
+  // Perform additional Run-time type-checking to ensure that
+  // trustedResourceUrl is indeed an instance of the expected type.  This
+  // provides some additional protection against security bugs due to
+  // application code that disables type checks.
+  // Specifically, the following checks are performed:
+  // 1. The object is an instance of the expected type.
+  // 2. The object is not an instance of a subclass.
+  // 3. The object carries a type marker for the expected type. "Faking" an
+  // object requires a reference to the type marker, which has names intended
+  // to stand out in code reviews.
+  if (trustedResourceUrl instanceof goog.html.TrustedResourceUrl &&
+      trustedResourceUrl.constructor === goog.html.TrustedResourceUrl &&
+      trustedResourceUrl
+              .TRUSTED_RESOURCE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
+          goog.html.TrustedResourceUrl
+              .TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
+    return trustedResourceUrl
+        .privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_;
+  } else {
+    goog.asserts.fail('expected object of type TrustedResourceUrl, got \'' +
+        trustedResourceUrl + '\' of type ' + goog.typeOf(trustedResourceUrl));
+    return 'type_error:TrustedResourceUrl';
+  }
+};
+
+
+/**
+ * Creates a TrustedResourceUrl object from a compile-time constant string.
+ *
+ * Compile-time constant strings are inherently program-controlled and hence
+ * trusted.
+ *
+ * @param {!goog.string.Const} url A compile-time-constant string from which to
+ *     create a TrustedResourceUrl.
+ * @return {!goog.html.TrustedResourceUrl} A TrustedResourceUrl object
+ *     initialized to {@code url}.
+ */
+goog.html.TrustedResourceUrl.fromConstant = function(url) {
+  return goog.html.TrustedResourceUrl
+      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(
+          goog.string.Const.unwrap(url));
+};
+
+
+/**
+ * Creates a TrustedResourceUrl object from a compile-time constant strings.
+ *
+ * Compile-time constant strings are inherently program-controlled and hence
+ * trusted.
+ *
+ * @param {!Array<!goog.string.Const>} parts Compile-time-constant strings from
+ *     which to create a TrustedResourceUrl.
+ * @return {!goog.html.TrustedResourceUrl} A TrustedResourceUrl object
+ *     initialized to concatenation of {@code parts}.
+ */
+goog.html.TrustedResourceUrl.fromConstants = function(parts) {
+  var unwrapped = '';
+  for (var i = 0; i < parts.length; i++) {
+    unwrapped += goog.string.Const.unwrap(parts[i]);
+  }
+  return goog.html.TrustedResourceUrl
+      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(unwrapped);
+};
+
+
+/**
+ * Type marker for the TrustedResourceUrl type, used to implement additional
+ * run-time type checking.
+ * @const {!Object}
+ * @private
+ */
+goog.html.TrustedResourceUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
+
+
+/**
+ * Package-internal utility method to create TrustedResourceUrl instances.
+ *
+ * @param {string} url The string to initialize the TrustedResourceUrl object
+ *     with.
+ * @return {!goog.html.TrustedResourceUrl} The initialized TrustedResourceUrl
+ *     object.
+ * @package
+ */
+goog.html.TrustedResourceUrl
+    .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse = function(url) {
+  var trustedResourceUrl = new goog.html.TrustedResourceUrl();
+  trustedResourceUrl.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_ =
+      url;
+  return trustedResourceUrl;
+};

viz/out/goog/html/uncheckedconversions.js

@@ -0,0 +1,232 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Unchecked conversions to create values of goog.html types from
+ * plain strings.  Use of these functions could potentially result in instances
+ * of goog.html types that violate their type contracts, and hence result in
+ * security vulnerabilties.
+ *
+ * Therefore, all uses of the methods herein must be carefully security
+ * reviewed.  Avoid use of the methods in this file whenever possible; instead
+ * prefer to create instances of goog.html types using inherently safe builders
+ * or template systems.
+ *
+ *
+ *
+ * @visibility {//closure/goog/html:approved_for_unchecked_conversion}
+ * @visibility {//closure/goog/bin/sizetests:__pkg__}
+ */
+
+
+goog.provide('goog.html.uncheckedconversions');
+
+goog.require('goog.asserts');
+goog.require('goog.html.SafeHtml');
+goog.require('goog.html.SafeScript');
+goog.require('goog.html.SafeStyle');
+goog.require('goog.html.SafeStyleSheet');
+goog.require('goog.html.SafeUrl');
+goog.require('goog.html.TrustedResourceUrl');
+goog.require('goog.string');
+goog.require('goog.string.Const');
+
+
+/**
+ * Performs an "unchecked conversion" to SafeHtml from a plain string that is
+ * known to satisfy the SafeHtml type contract.
+ *
+ * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
+ * that the value of {@code html} satisfies the SafeHtml type contract in all
+ * possible program states.
+ *
+ *
+ * @param {!goog.string.Const} justification A constant string explaining why
+ *     this use of this method is safe. May include a security review ticket
+ *     number.
+ * @param {string} html A string that is claimed to adhere to the SafeHtml
+ *     contract.
+ * @param {?goog.i18n.bidi.Dir=} opt_dir The optional directionality of the
+ *     SafeHtml to be constructed. A null or undefined value signifies an
+ *     unknown directionality.
+ * @return {!goog.html.SafeHtml} The value of html, wrapped in a SafeHtml
+ *     object.
+ * @suppress {visibility} For access to SafeHtml.create...  Note that this
+ *     use is appropriate since this method is intended to be "package private"
+ *     within goog.html.  DO NOT call SafeHtml.create... from outside this
+ *     package; use appropriate wrappers instead.
+ */
+goog.html.uncheckedconversions.safeHtmlFromStringKnownToSatisfyTypeContract =
+    function(justification, html, opt_dir) {
+  // unwrap() called inside an assert so that justification can be optimized
+  // away in production code.
+  goog.asserts.assertString(
+      goog.string.Const.unwrap(justification), 'must provide justification');
+  goog.asserts.assert(
+      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
+      'must provide non-empty justification');
+  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
+      html, opt_dir || null);
+};
+
+
+/**
+ * Performs an "unchecked conversion" to SafeScript from a plain string that is
+ * known to satisfy the SafeScript type contract.
+ *
+ * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
+ * that the value of {@code script} satisfies the SafeScript type contract in
+ * all possible program states.
+ *
+ *
+ * @param {!goog.string.Const} justification A constant string explaining why
+ *     this use of this method is safe. May include a security review ticket
+ *     number.
+ * @param {string} script The string to wrap as a SafeScript.
+ * @return {!goog.html.SafeScript} The value of {@code script}, wrapped in a
+ *     SafeScript object.
+ */
+goog.html.uncheckedconversions.safeScriptFromStringKnownToSatisfyTypeContract =
+    function(justification, script) {
+  // unwrap() called inside an assert so that justification can be optimized
+  // away in production code.
+  goog.asserts.assertString(
+      goog.string.Const.unwrap(justification), 'must provide justification');
+  goog.asserts.assert(
+      !goog.string.isEmpty(goog.string.Const.unwrap(justification)),
+      'must provide non-empty justification');
+  return goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse(
+      script);
+};
+
+
+/**
+ * Performs an "unchecked conversion" to SafeStyle from a plain string that is
+ * known to satisfy the SafeStyle type contract.
+ *
+ * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
+ * that the value of {@code style} satisfies the SafeUrl type contract in all
+ * possible program states.
+ *
+ *
+ * @param {!goog.string.Const} justification A constant string explaining why
+ *     this use of this method is safe. May include a security review ticket
+ *     number.
+ * @param {string} style The string to wrap as a SafeStyle.
+ * @return {!goog.html.SafeStyle} The value of {@code style}, wrapped in a
+ *     SafeStyle object.
+ */
+goog.html.uncheckedconversions.safeStyleFromStringKnownToSatisfyTypeContract =
+    function(justification, style) {
+  // unwrap() called inside an assert so that justification can be optimized
+  // away in production code.
+  goog.asserts.assertString(
+      goog.string.Const.unwrap(justification), 'must provide justification');
+  goog.asserts.assert(
+      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
+      'must provide non-empty justification');
+  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
+      style);
+};
+
+
+/**
+ * Performs an "unchecked conversion" to SafeStyleSheet from a plain string
+ * that is known to satisfy the SafeStyleSheet type contract.
+ *
+ * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
+ * that the value of {@code styleSheet} satisfies the SafeUrl type contract in
+ * all possible program states.
+ *
+ *
+ * @param {!goog.string.Const} justification A constant string explaining why
+ *     this use of this method is safe. May include a security review ticket
+ *     number.
+ * @param {string} styleSheet The string to wrap as a SafeStyleSheet.
+ * @return {!goog.html.SafeStyleSheet} The value of {@code styleSheet}, wrapped
+ *     in a SafeStyleSheet object.
+ */
+goog.html.uncheckedconversions
+    .safeStyleSheetFromStringKnownToSatisfyTypeContract = function(
+    justification, styleSheet) {
+  // unwrap() called inside an assert so that justification can be optimized
+  // away in production code.
+  goog.asserts.assertString(
+      goog.string.Const.unwrap(justification), 'must provide justification');
+  goog.asserts.assert(
+      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
+      'must provide non-empty justification');
+  return goog.html.SafeStyleSheet
+      .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(styleSheet);
+};
+
+
+/**
+ * Performs an "unchecked conversion" to SafeUrl from a plain string that is
+ * known to satisfy the SafeUrl type contract.
+ *
+ * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
+ * that the value of {@code url} satisfies the SafeUrl type contract in all
+ * possible program states.
+ *
+ *
+ * @param {!goog.string.Const} justification A constant string explaining why
+ *     this use of this method is safe. May include a security review ticket
+ *     number.
+ * @param {string} url The string to wrap as a SafeUrl.
+ * @return {!goog.html.SafeUrl} The value of {@code url}, wrapped in a SafeUrl
+ *     object.
+ */
+goog.html.uncheckedconversions.safeUrlFromStringKnownToSatisfyTypeContract =
+    function(justification, url) {
+  // unwrap() called inside an assert so that justification can be optimized
+  // away in production code.
+  goog.asserts.assertString(
+      goog.string.Const.unwrap(justification), 'must provide justification');
+  goog.asserts.assert(
+      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
+      'must provide non-empty justification');
+  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(url);
+};
+
+
+/**
+ * Performs an "unchecked conversion" to TrustedResourceUrl from a plain string
+ * that is known to satisfy the TrustedResourceUrl type contract.
+ *
+ * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
+ * that the value of {@code url} satisfies the TrustedResourceUrl type contract
+ * in all possible program states.
+ *
+ *
+ * @param {!goog.string.Const} justification A constant string explaining why
+ *     this use of this method is safe. May include a security review ticket
+ *     number.
+ * @param {string} url The string to wrap as a TrustedResourceUrl.
+ * @return {!goog.html.TrustedResourceUrl} The value of {@code url}, wrapped in
+ *     a TrustedResourceUrl object.
+ */
+goog.html.uncheckedconversions
+    .trustedResourceUrlFromStringKnownToSatisfyTypeContract = function(
+    justification, url) {
+  // unwrap() called inside an assert so that justification can be optimized
+  // away in production code.
+  goog.asserts.assertString(
+      goog.string.Const.unwrap(justification), 'must provide justification');
+  goog.asserts.assert(
+      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
+      'must provide non-empty justification');
+  return goog.html.TrustedResourceUrl
+      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(url);
+};

viz/out/goog/i18n/bidi.js

@@ -0,0 +1,876 @@
+// Copyright 2007 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Utility functions for supporting Bidi issues.
+ */
+
+
+/**
+ * Namespace for bidi supporting functions.
+ */
+goog.provide('goog.i18n.bidi');
+goog.provide('goog.i18n.bidi.Dir');
+goog.provide('goog.i18n.bidi.DirectionalString');
+goog.provide('goog.i18n.bidi.Format');
+
+
+/**
+ * @define {boolean} FORCE_RTL forces the {@link goog.i18n.bidi.IS_RTL} constant
+ * to say that the current locale is a RTL locale.  This should only be used
+ * if you want to override the default behavior for deciding whether the
+ * current locale is RTL or not.
+ *
+ * {@see goog.i18n.bidi.IS_RTL}
+ */
+goog.define('goog.i18n.bidi.FORCE_RTL', false);
+
+
+/**
+ * Constant that defines whether or not the current locale is a RTL locale.
+ * If {@link goog.i18n.bidi.FORCE_RTL} is not true, this constant will default
+ * to check that {@link goog.LOCALE} is one of a few major RTL locales.
+ *
+ * <p>This is designed to be a maximally efficient compile-time constant. For
+ * example, for the default goog.LOCALE, compiling
+ * "if (goog.i18n.bidi.IS_RTL) alert('rtl') else {}" should produce no code. It
+ * is this design consideration that limits the implementation to only
+ * supporting a few major RTL locales, as opposed to the broader repertoire of
+ * something like goog.i18n.bidi.isRtlLanguage.
+ *
+ * <p>Since this constant refers to the directionality of the locale, it is up
+ * to the caller to determine if this constant should also be used for the
+ * direction of the UI.
+ *
+ * {@see goog.LOCALE}
+ *
+ * @type {boolean}
+ *
+ * TODO(user): write a test that checks that this is a compile-time constant.
+ */
+goog.i18n.bidi.IS_RTL = goog.i18n.bidi.FORCE_RTL ||
+    ((goog.LOCALE.substring(0, 2).toLowerCase() == 'ar' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'fa' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'he' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'iw' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'ps' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'sd' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'ug' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'ur' ||
+      goog.LOCALE.substring(0, 2).toLowerCase() == 'yi') &&
+     (goog.LOCALE.length == 2 || goog.LOCALE.substring(2, 3) == '-' ||
+      goog.LOCALE.substring(2, 3) == '_')) ||
+    (goog.LOCALE.length >= 3 &&
+     goog.LOCALE.substring(0, 3).toLowerCase() == 'ckb' &&
+     (goog.LOCALE.length == 3 || goog.LOCALE.substring(3, 4) == '-' ||
+      goog.LOCALE.substring(3, 4) == '_'));
+
+
+/**
+ * Unicode formatting characters and directionality string constants.
+ * @enum {string}
+ */
+goog.i18n.bidi.Format = {
+  /** Unicode "Left-To-Right Embedding" (LRE) character. */
+  LRE: '\u202A',
+  /** Unicode "Right-To-Left Embedding" (RLE) character. */
+  RLE: '\u202B',
+  /** Unicode "Pop Directional Formatting" (PDF) character. */
+  PDF: '\u202C',
+  /** Unicode "Left-To-Right Mark" (LRM) character. */
+  LRM: '\u200E',
+  /** Unicode "Right-To-Left Mark" (RLM) character. */
+  RLM: '\u200F'
+};
+
+
+/**
+ * Directionality enum.
+ * @enum {number}
+ */
+goog.i18n.bidi.Dir = {
+  /**
+   * Left-to-right.
+   */
+  LTR: 1,
+
+  /**
+   * Right-to-left.
+   */
+  RTL: -1,
+
+  /**
+   * Neither left-to-right nor right-to-left.
+   */
+  NEUTRAL: 0
+};
+
+
+/**
+ * 'right' string constant.
+ * @type {string}
+ */
+goog.i18n.bidi.RIGHT = 'right';
+
+
+/**
+ * 'left' string constant.
+ * @type {string}
+ */
+goog.i18n.bidi.LEFT = 'left';
+
+
+/**
+ * 'left' if locale is RTL, 'right' if not.
+ * @type {string}
+ */
+goog.i18n.bidi.I18N_RIGHT =
+    goog.i18n.bidi.IS_RTL ? goog.i18n.bidi.LEFT : goog.i18n.bidi.RIGHT;
+
+
+/**
+ * 'right' if locale is RTL, 'left' if not.
+ * @type {string}
+ */
+goog.i18n.bidi.I18N_LEFT =
+    goog.i18n.bidi.IS_RTL ? goog.i18n.bidi.RIGHT : goog.i18n.bidi.LEFT;
+
+
+/**
+ * Convert a directionality given in various formats to a goog.i18n.bidi.Dir
+ * constant. Useful for interaction with different standards of directionality
+ * representation.
+ *
+ * @param {goog.i18n.bidi.Dir|number|boolean|null} givenDir Directionality given
+ *     in one of the following formats:
+ *     1. A goog.i18n.bidi.Dir constant.
+ *     2. A number (positive = LTR, negative = RTL, 0 = neutral).
+ *     3. A boolean (true = RTL, false = LTR).
+ *     4. A null for unknown directionality.
+ * @param {boolean=} opt_noNeutral Whether a givenDir of zero or
+ *     goog.i18n.bidi.Dir.NEUTRAL should be treated as null, i.e. unknown, in
+ *     order to preserve legacy behavior.
+ * @return {?goog.i18n.bidi.Dir} A goog.i18n.bidi.Dir constant matching the
+ *     given directionality. If given null, returns null (i.e. unknown).
+ */
+goog.i18n.bidi.toDir = function(givenDir, opt_noNeutral) {
+  if (typeof givenDir == 'number') {
+    // This includes the non-null goog.i18n.bidi.Dir case.
+    return givenDir > 0 ? goog.i18n.bidi.Dir.LTR : givenDir < 0 ?
+                          goog.i18n.bidi.Dir.RTL :
+                          opt_noNeutral ? null : goog.i18n.bidi.Dir.NEUTRAL;
+  } else if (givenDir == null) {
+    return null;
+  } else {
+    // Must be typeof givenDir == 'boolean'.
+    return givenDir ? goog.i18n.bidi.Dir.RTL : goog.i18n.bidi.Dir.LTR;
+  }
+};
+
+
+/**
+ * A practical pattern to identify strong LTR characters. This pattern is not
+ * theoretically correct according to the Unicode standard. It is simplified for
+ * performance and small code size.
+ * @type {string}
+ * @private
+ */
+goog.i18n.bidi.ltrChars_ =
+    'A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF' +
+    '\u200E\u2C00-\uFB1C\uFE00-\uFE6F\uFEFD-\uFFFF';
+
+
+/**
+ * A practical pattern to identify strong RTL character. This pattern is not
+ * theoretically correct according to the Unicode standard. It is simplified
+ * for performance and small code size.
+ * @type {string}
+ * @private
+ */
+goog.i18n.bidi.rtlChars_ =
+    '\u0591-\u06EF\u06FA-\u07FF\u200F\uFB1D-\uFDFF\uFE70-\uFEFC';
+
+
+/**
+ * Simplified regular expression for an HTML tag (opening or closing) or an HTML
+ * escape. We might want to skip over such expressions when estimating the text
+ * directionality.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.htmlSkipReg_ = /<[^>]*>|&[^;]+;/g;
+
+
+/**
+ * Returns the input text with spaces instead of HTML tags or HTML escapes, if
+ * opt_isStripNeeded is true. Else returns the input as is.
+ * Useful for text directionality estimation.
+ * Note: the function should not be used in other contexts; it is not 100%
+ * correct, but rather a good-enough implementation for directionality
+ * estimation purposes.
+ * @param {string} str The given string.
+ * @param {boolean=} opt_isStripNeeded Whether to perform the stripping.
+ *     Default: false (to retain consistency with calling functions).
+ * @return {string} The given string cleaned of HTML tags / escapes.
+ * @private
+ */
+goog.i18n.bidi.stripHtmlIfNeeded_ = function(str, opt_isStripNeeded) {
+  return opt_isStripNeeded ? str.replace(goog.i18n.bidi.htmlSkipReg_, '') : str;
+};
+
+
+/**
+ * Regular expression to check for RTL characters.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.rtlCharReg_ = new RegExp('[' + goog.i18n.bidi.rtlChars_ + ']');
+
+
+/**
+ * Regular expression to check for LTR characters.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.ltrCharReg_ = new RegExp('[' + goog.i18n.bidi.ltrChars_ + ']');
+
+
+/**
+ * Test whether the given string has any RTL characters in it.
+ * @param {string} str The given string that need to be tested.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether the string contains RTL characters.
+ */
+goog.i18n.bidi.hasAnyRtl = function(str, opt_isHtml) {
+  return goog.i18n.bidi.rtlCharReg_.test(
+      goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml));
+};
+
+
+/**
+ * Test whether the given string has any RTL characters in it.
+ * @param {string} str The given string that need to be tested.
+ * @return {boolean} Whether the string contains RTL characters.
+ * @deprecated Use hasAnyRtl.
+ */
+goog.i18n.bidi.hasRtlChar = goog.i18n.bidi.hasAnyRtl;
+
+
+/**
+ * Test whether the given string has any LTR characters in it.
+ * @param {string} str The given string that need to be tested.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether the string contains LTR characters.
+ */
+goog.i18n.bidi.hasAnyLtr = function(str, opt_isHtml) {
+  return goog.i18n.bidi.ltrCharReg_.test(
+      goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml));
+};
+
+
+/**
+ * Regular expression pattern to check if the first character in the string
+ * is LTR.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.ltrRe_ = new RegExp('^[' + goog.i18n.bidi.ltrChars_ + ']');
+
+
+/**
+ * Regular expression pattern to check if the first character in the string
+ * is RTL.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.rtlRe_ = new RegExp('^[' + goog.i18n.bidi.rtlChars_ + ']');
+
+
+/**
+ * Check if the first character in the string is RTL or not.
+ * @param {string} str The given string that need to be tested.
+ * @return {boolean} Whether the first character in str is an RTL char.
+ */
+goog.i18n.bidi.isRtlChar = function(str) {
+  return goog.i18n.bidi.rtlRe_.test(str);
+};
+
+
+/**
+ * Check if the first character in the string is LTR or not.
+ * @param {string} str The given string that need to be tested.
+ * @return {boolean} Whether the first character in str is an LTR char.
+ */
+goog.i18n.bidi.isLtrChar = function(str) {
+  return goog.i18n.bidi.ltrRe_.test(str);
+};
+
+
+/**
+ * Check if the first character in the string is neutral or not.
+ * @param {string} str The given string that need to be tested.
+ * @return {boolean} Whether the first character in str is a neutral char.
+ */
+goog.i18n.bidi.isNeutralChar = function(str) {
+  return !goog.i18n.bidi.isLtrChar(str) && !goog.i18n.bidi.isRtlChar(str);
+};
+
+
+/**
+ * Regular expressions to check if a piece of text is of LTR directionality
+ * on first character with strong directionality.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.ltrDirCheckRe_ = new RegExp(
+    '^[^' + goog.i18n.bidi.rtlChars_ + ']*[' + goog.i18n.bidi.ltrChars_ + ']');
+
+
+/**
+ * Regular expressions to check if a piece of text is of RTL directionality
+ * on first character with strong directionality.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.rtlDirCheckRe_ = new RegExp(
+    '^[^' + goog.i18n.bidi.ltrChars_ + ']*[' + goog.i18n.bidi.rtlChars_ + ']');
+
+
+/**
+ * Check whether the first strongly directional character (if any) is RTL.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether RTL directionality is detected using the first
+ *     strongly-directional character method.
+ */
+goog.i18n.bidi.startsWithRtl = function(str, opt_isHtml) {
+  return goog.i18n.bidi.rtlDirCheckRe_.test(
+      goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml));
+};
+
+
+/**
+ * Check whether the first strongly directional character (if any) is RTL.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether RTL directionality is detected using the first
+ *     strongly-directional character method.
+ * @deprecated Use startsWithRtl.
+ */
+goog.i18n.bidi.isRtlText = goog.i18n.bidi.startsWithRtl;
+
+
+/**
+ * Check whether the first strongly directional character (if any) is LTR.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether LTR directionality is detected using the first
+ *     strongly-directional character method.
+ */
+goog.i18n.bidi.startsWithLtr = function(str, opt_isHtml) {
+  return goog.i18n.bidi.ltrDirCheckRe_.test(
+      goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml));
+};
+
+
+/**
+ * Check whether the first strongly directional character (if any) is LTR.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether LTR directionality is detected using the first
+ *     strongly-directional character method.
+ * @deprecated Use startsWithLtr.
+ */
+goog.i18n.bidi.isLtrText = goog.i18n.bidi.startsWithLtr;
+
+
+/**
+ * Regular expression to check if a string looks like something that must
+ * always be LTR even in RTL text, e.g. a URL. When estimating the
+ * directionality of text containing these, we treat these as weakly LTR,
+ * like numbers.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.isRequiredLtrRe_ = /^http:\/\/.*/;
+
+
+/**
+ * Check whether the input string either contains no strongly directional
+ * characters or looks like a url.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether neutral directionality is detected.
+ */
+goog.i18n.bidi.isNeutralText = function(str, opt_isHtml) {
+  str = goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml);
+  return goog.i18n.bidi.isRequiredLtrRe_.test(str) ||
+      !goog.i18n.bidi.hasAnyLtr(str) && !goog.i18n.bidi.hasAnyRtl(str);
+};
+
+
+/**
+ * Regular expressions to check if the last strongly-directional character in a
+ * piece of text is LTR.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.ltrExitDirCheckRe_ = new RegExp(
+    '[' + goog.i18n.bidi.ltrChars_ + '][^' + goog.i18n.bidi.rtlChars_ + ']*$');
+
+
+/**
+ * Regular expressions to check if the last strongly-directional character in a
+ * piece of text is RTL.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.rtlExitDirCheckRe_ = new RegExp(
+    '[' + goog.i18n.bidi.rtlChars_ + '][^' + goog.i18n.bidi.ltrChars_ + ']*$');
+
+
+/**
+ * Check if the exit directionality a piece of text is LTR, i.e. if the last
+ * strongly-directional character in the string is LTR.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether LTR exit directionality was detected.
+ */
+goog.i18n.bidi.endsWithLtr = function(str, opt_isHtml) {
+  return goog.i18n.bidi.ltrExitDirCheckRe_.test(
+      goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml));
+};
+
+
+/**
+ * Check if the exit directionality a piece of text is LTR, i.e. if the last
+ * strongly-directional character in the string is LTR.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether LTR exit directionality was detected.
+ * @deprecated Use endsWithLtr.
+ */
+goog.i18n.bidi.isLtrExitText = goog.i18n.bidi.endsWithLtr;
+
+
+/**
+ * Check if the exit directionality a piece of text is RTL, i.e. if the last
+ * strongly-directional character in the string is RTL.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether RTL exit directionality was detected.
+ */
+goog.i18n.bidi.endsWithRtl = function(str, opt_isHtml) {
+  return goog.i18n.bidi.rtlExitDirCheckRe_.test(
+      goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml));
+};
+
+
+/**
+ * Check if the exit directionality a piece of text is RTL, i.e. if the last
+ * strongly-directional character in the string is RTL.
+ * @param {string} str String being checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether RTL exit directionality was detected.
+ * @deprecated Use endsWithRtl.
+ */
+goog.i18n.bidi.isRtlExitText = goog.i18n.bidi.endsWithRtl;
+
+
+/**
+ * A regular expression for matching right-to-left language codes.
+ * See {@link #isRtlLanguage} for the design.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.rtlLocalesRe_ = new RegExp(
+    '^(ar|ckb|dv|he|iw|fa|nqo|ps|sd|ug|ur|yi|' +
+        '.*[-_](Arab|Hebr|Thaa|Nkoo|Tfng))' +
+        '(?!.*[-_](Latn|Cyrl)($|-|_))($|-|_)',
+    'i');
+
+
+/**
+ * Check if a BCP 47 / III language code indicates an RTL language, i.e. either:
+ * - a language code explicitly specifying one of the right-to-left scripts,
+ *   e.g. "az-Arab", or<p>
+ * - a language code specifying one of the languages normally written in a
+ *   right-to-left script, e.g. "fa" (Farsi), except ones explicitly specifying
+ *   Latin or Cyrillic script (which are the usual LTR alternatives).<p>
+ * The list of right-to-left scripts appears in the 100-199 range in
+ * http://www.unicode.org/iso15924/iso15924-num.html, of which Arabic and
+ * Hebrew are by far the most widely used. We also recognize Thaana, N'Ko, and
+ * Tifinagh, which also have significant modern usage. The rest (Syriac,
+ * Samaritan, Mandaic, etc.) seem to have extremely limited or no modern usage
+ * and are not recognized to save on code size.
+ * The languages usually written in a right-to-left script are taken as those
+ * with Suppress-Script: Hebr|Arab|Thaa|Nkoo|Tfng  in
+ * http://www.iana.org/assignments/language-subtag-registry,
+ * as well as Central (or Sorani) Kurdish (ckb), Sindhi (sd) and Uyghur (ug).
+ * Other subtags of the language code, e.g. regions like EG (Egypt), are
+ * ignored.
+ * @param {string} lang BCP 47 (a.k.a III) language code.
+ * @return {boolean} Whether the language code is an RTL language.
+ */
+goog.i18n.bidi.isRtlLanguage = function(lang) {
+  return goog.i18n.bidi.rtlLocalesRe_.test(lang);
+};
+
+
+/**
+ * Regular expression for bracket guard replacement in text.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.bracketGuardTextRe_ =
+    /(\(.*?\)+)|(\[.*?\]+)|(\{.*?\}+)|(<.*?>+)/g;
+
+
+/**
+ * Apply bracket guard using LRM and RLM. This is to address the problem of
+ * messy bracket display frequently happens in RTL layout.
+ * This function works for plain text, not for HTML. In HTML, the opening
+ * bracket might be in a different context than the closing bracket (such as
+ * an attribute value).
+ * @param {string} s The string that need to be processed.
+ * @param {boolean=} opt_isRtlContext specifies default direction (usually
+ *     direction of the UI).
+ * @return {string} The processed string, with all bracket guarded.
+ */
+goog.i18n.bidi.guardBracketInText = function(s, opt_isRtlContext) {
+  var useRtl = opt_isRtlContext === undefined ? goog.i18n.bidi.hasAnyRtl(s) :
+                                                opt_isRtlContext;
+  var mark = useRtl ? goog.i18n.bidi.Format.RLM : goog.i18n.bidi.Format.LRM;
+  return s.replace(goog.i18n.bidi.bracketGuardTextRe_, mark + '$&' + mark);
+};
+
+
+/**
+ * Enforce the html snippet in RTL directionality regardless overall context.
+ * If the html piece was enclosed by tag, dir will be applied to existing
+ * tag, otherwise a span tag will be added as wrapper. For this reason, if
+ * html snippet start with with tag, this tag must enclose the whole piece. If
+ * the tag already has a dir specified, this new one will override existing
+ * one in behavior (tested on FF and IE).
+ * @param {string} html The string that need to be processed.
+ * @return {string} The processed string, with directionality enforced to RTL.
+ */
+goog.i18n.bidi.enforceRtlInHtml = function(html) {
+  if (html.charAt(0) == '<') {
+    return html.replace(/<\w+/, '$& dir=rtl');
+  }
+  // '\n' is important for FF so that it won't incorrectly merge span groups
+  return '\n<span dir=rtl>' + html + '</span>';
+};
+
+
+/**
+ * Enforce RTL on both end of the given text piece using unicode BiDi formatting
+ * characters RLE and PDF.
+ * @param {string} text The piece of text that need to be wrapped.
+ * @return {string} The wrapped string after process.
+ */
+goog.i18n.bidi.enforceRtlInText = function(text) {
+  return goog.i18n.bidi.Format.RLE + text + goog.i18n.bidi.Format.PDF;
+};
+
+
+/**
+ * Enforce the html snippet in RTL directionality regardless overall context.
+ * If the html piece was enclosed by tag, dir will be applied to existing
+ * tag, otherwise a span tag will be added as wrapper. For this reason, if
+ * html snippet start with with tag, this tag must enclose the whole piece. If
+ * the tag already has a dir specified, this new one will override existing
+ * one in behavior (tested on FF and IE).
+ * @param {string} html The string that need to be processed.
+ * @return {string} The processed string, with directionality enforced to RTL.
+ */
+goog.i18n.bidi.enforceLtrInHtml = function(html) {
+  if (html.charAt(0) == '<') {
+    return html.replace(/<\w+/, '$& dir=ltr');
+  }
+  // '\n' is important for FF so that it won't incorrectly merge span groups
+  return '\n<span dir=ltr>' + html + '</span>';
+};
+
+
+/**
+ * Enforce LTR on both end of the given text piece using unicode BiDi formatting
+ * characters LRE and PDF.
+ * @param {string} text The piece of text that need to be wrapped.
+ * @return {string} The wrapped string after process.
+ */
+goog.i18n.bidi.enforceLtrInText = function(text) {
+  return goog.i18n.bidi.Format.LRE + text + goog.i18n.bidi.Format.PDF;
+};
+
+
+/**
+ * Regular expression to find dimensions such as "padding: .3 0.4ex 5px 6;"
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.dimensionsRe_ =
+    /:\s*([.\d][.\w]*)\s+([.\d][.\w]*)\s+([.\d][.\w]*)\s+([.\d][.\w]*)/g;
+
+
+/**
+ * Regular expression for left.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.leftRe_ = /left/gi;
+
+
+/**
+ * Regular expression for right.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.rightRe_ = /right/gi;
+
+
+/**
+ * Placeholder regular expression for swapping.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.tempRe_ = /%%%%/g;
+
+
+/**
+ * Swap location parameters and 'left'/'right' in CSS specification. The
+ * processed string will be suited for RTL layout. Though this function can
+ * cover most cases, there are always exceptions. It is suggested to put
+ * those exceptions in separate group of CSS string.
+ * @param {string} cssStr CSS spefication string.
+ * @return {string} Processed CSS specification string.
+ */
+goog.i18n.bidi.mirrorCSS = function(cssStr) {
+  return cssStr
+      .
+      // reverse dimensions
+      replace(goog.i18n.bidi.dimensionsRe_, ':$1 $4 $3 $2')
+      .replace(goog.i18n.bidi.leftRe_, '%%%%')
+      .  // swap left and right
+      replace(goog.i18n.bidi.rightRe_, goog.i18n.bidi.LEFT)
+      .replace(goog.i18n.bidi.tempRe_, goog.i18n.bidi.RIGHT);
+};
+
+
+/**
+ * Regular expression for hebrew double quote substitution, finding quote
+ * directly after hebrew characters.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.doubleQuoteSubstituteRe_ = /([\u0591-\u05f2])"/g;
+
+
+/**
+ * Regular expression for hebrew single quote substitution, finding quote
+ * directly after hebrew characters.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.singleQuoteSubstituteRe_ = /([\u0591-\u05f2])'/g;
+
+
+/**
+ * Replace the double and single quote directly after a Hebrew character with
+ * GERESH and GERSHAYIM. In such case, most likely that's user intention.
+ * @param {string} str String that need to be processed.
+ * @return {string} Processed string with double/single quote replaced.
+ */
+goog.i18n.bidi.normalizeHebrewQuote = function(str) {
+  return str.replace(goog.i18n.bidi.doubleQuoteSubstituteRe_, '$1\u05f4')
+      .replace(goog.i18n.bidi.singleQuoteSubstituteRe_, '$1\u05f3');
+};
+
+
+/**
+ * Regular expression to split a string into "words" for directionality
+ * estimation based on relative word counts.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.wordSeparatorRe_ = /\s+/;
+
+
+/**
+ * Regular expression to check if a string contains any numerals. Used to
+ * differentiate between completely neutral strings and those containing
+ * numbers, which are weakly LTR.
+ *
+ * Native Arabic digits (\u0660 - \u0669) are not included because although they
+ * do flow left-to-right inside a number, this is the case even if the  overall
+ * directionality is RTL, and a mathematical expression using these digits is
+ * supposed to flow right-to-left overall, including unary plus and minus
+ * appearing to the right of a number, and this does depend on the overall
+ * directionality being RTL. The digits used in Farsi (\u06F0 - \u06F9), on the
+ * other hand, are included, since Farsi math (including unary plus and minus)
+ * does flow left-to-right.
+ *
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.bidi.hasNumeralsRe_ = /[\d\u06f0-\u06f9]/;
+
+
+/**
+ * This constant controls threshold of RTL directionality.
+ * @type {number}
+ * @private
+ */
+goog.i18n.bidi.rtlDetectionThreshold_ = 0.40;
+
+
+/**
+ * Estimates the directionality of a string based on relative word counts.
+ * If the number of RTL words is above a certain percentage of the total number
+ * of strongly directional words, returns RTL.
+ * Otherwise, if any words are strongly or weakly LTR, returns LTR.
+ * Otherwise, returns UNKNOWN, which is used to mean "neutral".
+ * Numbers are counted as weakly LTR.
+ * @param {string} str The string to be checked.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {goog.i18n.bidi.Dir} Estimated overall directionality of {@code str}.
+ */
+goog.i18n.bidi.estimateDirection = function(str, opt_isHtml) {
+  var rtlCount = 0;
+  var totalCount = 0;
+  var hasWeaklyLtr = false;
+  var tokens = goog.i18n.bidi.stripHtmlIfNeeded_(str, opt_isHtml)
+                   .split(goog.i18n.bidi.wordSeparatorRe_);
+  for (var i = 0; i < tokens.length; i++) {
+    var token = tokens[i];
+    if (goog.i18n.bidi.startsWithRtl(token)) {
+      rtlCount++;
+      totalCount++;
+    } else if (goog.i18n.bidi.isRequiredLtrRe_.test(token)) {
+      hasWeaklyLtr = true;
+    } else if (goog.i18n.bidi.hasAnyLtr(token)) {
+      totalCount++;
+    } else if (goog.i18n.bidi.hasNumeralsRe_.test(token)) {
+      hasWeaklyLtr = true;
+    }
+  }
+
+  return totalCount == 0 ?
+      (hasWeaklyLtr ? goog.i18n.bidi.Dir.LTR : goog.i18n.bidi.Dir.NEUTRAL) :
+      (rtlCount / totalCount > goog.i18n.bidi.rtlDetectionThreshold_ ?
+           goog.i18n.bidi.Dir.RTL :
+           goog.i18n.bidi.Dir.LTR);
+};
+
+
+/**
+ * Check the directionality of a piece of text, return true if the piece of
+ * text should be laid out in RTL direction.
+ * @param {string} str The piece of text that need to be detected.
+ * @param {boolean=} opt_isHtml Whether str is HTML / HTML-escaped.
+ *     Default: false.
+ * @return {boolean} Whether this piece of text should be laid out in RTL.
+ */
+goog.i18n.bidi.detectRtlDirectionality = function(str, opt_isHtml) {
+  return goog.i18n.bidi.estimateDirection(str, opt_isHtml) ==
+      goog.i18n.bidi.Dir.RTL;
+};
+
+
+/**
+ * Sets text input element's directionality and text alignment based on a
+ * given directionality. Does nothing if the given directionality is unknown or
+ * neutral.
+ * @param {Element} element Input field element to set directionality to.
+ * @param {goog.i18n.bidi.Dir|number|boolean|null} dir Desired directionality,
+ *     given in one of the following formats:
+ *     1. A goog.i18n.bidi.Dir constant.
+ *     2. A number (positive = LRT, negative = RTL, 0 = neutral).
+ *     3. A boolean (true = RTL, false = LTR).
+ *     4. A null for unknown directionality.
+ */
+goog.i18n.bidi.setElementDirAndAlign = function(element, dir) {
+  if (element) {
+    dir = goog.i18n.bidi.toDir(dir);
+    if (dir) {
+      element.style.textAlign = dir == goog.i18n.bidi.Dir.RTL ?
+          goog.i18n.bidi.RIGHT :
+          goog.i18n.bidi.LEFT;
+      element.dir = dir == goog.i18n.bidi.Dir.RTL ? 'rtl' : 'ltr';
+    }
+  }
+};
+
+
+/**
+ * Sets element dir based on estimated directionality of the given text.
+ * @param {!Element} element
+ * @param {string} text
+ */
+goog.i18n.bidi.setElementDirByTextDirectionality = function(element, text) {
+  switch (goog.i18n.bidi.estimateDirection(text)) {
+    case (goog.i18n.bidi.Dir.LTR):
+      element.dir = 'ltr';
+      break;
+    case (goog.i18n.bidi.Dir.RTL):
+      element.dir = 'rtl';
+      break;
+    default:
+      // Default for no direction, inherit from document.
+      element.removeAttribute('dir');
+  }
+};
+
+
+
+/**
+ * Strings that have an (optional) known direction.
+ *
+ * Implementations of this interface are string-like objects that carry an
+ * attached direction, if known.
+ * @interface
+ */
+goog.i18n.bidi.DirectionalString = function() {};
+
+
+/**
+ * Interface marker of the DirectionalString interface.
+ *
+ * This property can be used to determine at runtime whether or not an object
+ * implements this interface.  All implementations of this interface set this
+ * property to {@code true}.
+ * @type {boolean}
+ */
+goog.i18n.bidi.DirectionalString.prototype
+    .implementsGoogI18nBidiDirectionalString;
+
+
+/**
+ * Retrieves this object's known direction (if any).
+ * @return {?goog.i18n.bidi.Dir} The known direction. Null if unknown.
+ */
+goog.i18n.bidi.DirectionalString.prototype.getDirection;

viz/out/goog/labs/useragent/browser.js

@@ -0,0 +1,338 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Closure user agent detection (Browser).
+ * @see <a href="http://www.useragentstring.com/">User agent strings</a>
+ * For more information on rendering engine, platform, or device see the other
+ * sub-namespaces in goog.labs.userAgent, goog.labs.userAgent.platform,
+ * goog.labs.userAgent.device respectively.)
+ *
+ * @author martone@google.com (Andy Martone)
+ */
+
+goog.provide('goog.labs.userAgent.browser');
+
+goog.require('goog.array');
+goog.require('goog.labs.userAgent.util');
+goog.require('goog.object');
+goog.require('goog.string');
+
+
+// TODO(nnaze): Refactor to remove excessive exclusion logic in matching
+// functions.
+
+
+/**
+ * @return {boolean} Whether the user's browser is Opera.  Note: Chromium
+ *     based Opera (Opera 15+) is detected as Chrome to avoid unnecessary
+ *     special casing.
+ * @private
+ */
+goog.labs.userAgent.browser.matchOpera_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Opera');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is IE.
+ * @private
+ */
+goog.labs.userAgent.browser.matchIE_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Trident') ||
+      goog.labs.userAgent.util.matchUserAgent('MSIE');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Edge.
+ * @private
+ */
+goog.labs.userAgent.browser.matchEdge_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Edge');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Firefox.
+ * @private
+ */
+goog.labs.userAgent.browser.matchFirefox_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Firefox');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Safari.
+ * @private
+ */
+goog.labs.userAgent.browser.matchSafari_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Safari') &&
+      !(goog.labs.userAgent.browser.matchChrome_() ||
+        goog.labs.userAgent.browser.matchCoast_() ||
+        goog.labs.userAgent.browser.matchOpera_() ||
+        goog.labs.userAgent.browser.matchEdge_() ||
+        goog.labs.userAgent.browser.isSilk() ||
+        goog.labs.userAgent.util.matchUserAgent('Android'));
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Coast (Opera's Webkit-based
+ *     iOS browser).
+ * @private
+ */
+goog.labs.userAgent.browser.matchCoast_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Coast');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is iOS Webview.
+ * @private
+ */
+goog.labs.userAgent.browser.matchIosWebview_ = function() {
+  // iOS Webview does not show up as Chrome or Safari. Also check for Opera's
+  // WebKit-based iOS browser, Coast.
+  return (goog.labs.userAgent.util.matchUserAgent('iPad') ||
+          goog.labs.userAgent.util.matchUserAgent('iPhone')) &&
+      !goog.labs.userAgent.browser.matchSafari_() &&
+      !goog.labs.userAgent.browser.matchChrome_() &&
+      !goog.labs.userAgent.browser.matchCoast_() &&
+      goog.labs.userAgent.util.matchUserAgent('AppleWebKit');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Chrome.
+ * @private
+ */
+goog.labs.userAgent.browser.matchChrome_ = function() {
+  return (goog.labs.userAgent.util.matchUserAgent('Chrome') ||
+          goog.labs.userAgent.util.matchUserAgent('CriOS')) &&
+      !goog.labs.userAgent.browser.matchEdge_();
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is the Android browser.
+ * @private
+ */
+goog.labs.userAgent.browser.matchAndroidBrowser_ = function() {
+  // Android can appear in the user agent string for Chrome on Android.
+  // This is not the Android standalone browser if it does.
+  return goog.labs.userAgent.util.matchUserAgent('Android') &&
+      !(goog.labs.userAgent.browser.isChrome() ||
+        goog.labs.userAgent.browser.isFirefox() ||
+        goog.labs.userAgent.browser.isOpera() ||
+        goog.labs.userAgent.browser.isSilk());
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Opera.
+ */
+goog.labs.userAgent.browser.isOpera = goog.labs.userAgent.browser.matchOpera_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is IE.
+ */
+goog.labs.userAgent.browser.isIE = goog.labs.userAgent.browser.matchIE_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Edge.
+ */
+goog.labs.userAgent.browser.isEdge = goog.labs.userAgent.browser.matchEdge_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Firefox.
+ */
+goog.labs.userAgent.browser.isFirefox =
+    goog.labs.userAgent.browser.matchFirefox_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Safari.
+ */
+goog.labs.userAgent.browser.isSafari = goog.labs.userAgent.browser.matchSafari_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Coast (Opera's Webkit-based
+ *     iOS browser).
+ */
+goog.labs.userAgent.browser.isCoast = goog.labs.userAgent.browser.matchCoast_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is iOS Webview.
+ */
+goog.labs.userAgent.browser.isIosWebview =
+    goog.labs.userAgent.browser.matchIosWebview_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Chrome.
+ */
+goog.labs.userAgent.browser.isChrome = goog.labs.userAgent.browser.matchChrome_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is the Android browser.
+ */
+goog.labs.userAgent.browser.isAndroidBrowser =
+    goog.labs.userAgent.browser.matchAndroidBrowser_;
+
+
+/**
+ * For more information, see:
+ * http://docs.aws.amazon.com/silk/latest/developerguide/user-agent.html
+ * @return {boolean} Whether the user's browser is Silk.
+ */
+goog.labs.userAgent.browser.isSilk = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Silk');
+};
+
+
+/**
+ * @return {string} The browser version or empty string if version cannot be
+ *     determined. Note that for Internet Explorer, this returns the version of
+ *     the browser, not the version of the rendering engine. (IE 8 in
+ *     compatibility mode will return 8.0 rather than 7.0. To determine the
+ *     rendering engine version, look at document.documentMode instead. See
+ *     http://msdn.microsoft.com/en-us/library/cc196988(v=vs.85).aspx for more
+ *     details.)
+ */
+goog.labs.userAgent.browser.getVersion = function() {
+  var userAgentString = goog.labs.userAgent.util.getUserAgent();
+  // Special case IE since IE's version is inside the parenthesis and
+  // without the '/'.
+  if (goog.labs.userAgent.browser.isIE()) {
+    return goog.labs.userAgent.browser.getIEVersion_(userAgentString);
+  }
+
+  var versionTuples =
+      goog.labs.userAgent.util.extractVersionTuples(userAgentString);
+
+  // Construct a map for easy lookup.
+  var versionMap = {};
+  goog.array.forEach(versionTuples, function(tuple) {
+    // Note that the tuple is of length three, but we only care about the
+    // first two.
+    var key = tuple[0];
+    var value = tuple[1];
+    versionMap[key] = value;
+  });
+
+  var versionMapHasKey = goog.partial(goog.object.containsKey, versionMap);
+
+  // Gives the value with the first key it finds, otherwise empty string.
+  function lookUpValueWithKeys(keys) {
+    var key = goog.array.find(keys, versionMapHasKey);
+    return versionMap[key] || '';
+  }
+
+  // Check Opera before Chrome since Opera 15+ has "Chrome" in the string.
+  // See
+  // http://my.opera.com/ODIN/blog/2013/07/15/opera-user-agent-strings-opera-15-and-beyond
+  if (goog.labs.userAgent.browser.isOpera()) {
+    // Opera 10 has Version/10.0 but Opera/9.8, so look for "Version" first.
+    // Opera uses 'OPR' for more recent UAs.
+    return lookUpValueWithKeys(['Version', 'Opera']);
+  }
+
+  // Check Edge before Chrome since it has Chrome in the string.
+  if (goog.labs.userAgent.browser.isEdge()) {
+    return lookUpValueWithKeys(['Edge']);
+  }
+
+  if (goog.labs.userAgent.browser.isChrome()) {
+    return lookUpValueWithKeys(['Chrome', 'CriOS']);
+  }
+
+  // Usually products browser versions are in the third tuple after "Mozilla"
+  // and the engine.
+  var tuple = versionTuples[2];
+  return tuple && tuple[1] || '';
+};
+
+
+/**
+ * @param {string|number} version The version to check.
+ * @return {boolean} Whether the browser version is higher or the same as the
+ *     given version.
+ */
+goog.labs.userAgent.browser.isVersionOrHigher = function(version) {
+  return goog.string.compareVersions(
+             goog.labs.userAgent.browser.getVersion(), version) >= 0;
+};
+
+
+/**
+ * Determines IE version. More information:
+ * http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.85).aspx#uaString
+ * http://msdn.microsoft.com/en-us/library/hh869301(v=vs.85).aspx
+ * http://blogs.msdn.com/b/ie/archive/2010/03/23/introducing-ie9-s-user-agent-string.aspx
+ * http://blogs.msdn.com/b/ie/archive/2009/01/09/the-internet-explorer-8-user-agent-string-updated-edition.aspx
+ *
+ * @param {string} userAgent the User-Agent.
+ * @return {string}
+ * @private
+ */
+goog.labs.userAgent.browser.getIEVersion_ = function(userAgent) {
+  // IE11 may identify itself as MSIE 9.0 or MSIE 10.0 due to an IE 11 upgrade
+  // bug. Example UA:
+  // Mozilla/5.0 (MSIE 9.0; Windows NT 6.1; WOW64; Trident/7.0; rv:11.0)
+  // like Gecko.
+  // See http://www.whatismybrowser.com/developers/unknown-user-agent-fragments.
+  var rv = /rv: *([\d\.]*)/.exec(userAgent);
+  if (rv && rv[1]) {
+    return rv[1];
+  }
+
+  var version = '';
+  var msie = /MSIE +([\d\.]+)/.exec(userAgent);
+  if (msie && msie[1]) {
+    // IE in compatibility mode usually identifies itself as MSIE 7.0; in this
+    // case, use the Trident version to determine the version of IE. For more
+    // details, see the links above.
+    var tridentVersion = /Trident\/(\d.\d)/.exec(userAgent);
+    if (msie[1] == '7.0') {
+      if (tridentVersion && tridentVersion[1]) {
+        switch (tridentVersion[1]) {
+          case '4.0':
+            version = '8.0';
+            break;
+          case '5.0':
+            version = '9.0';
+            break;
+          case '6.0':
+            version = '10.0';
+            break;
+          case '7.0':
+            version = '11.0';
+            break;
+        }
+      } else {
+        version = '7.0';
+      }
+    } else {
+      version = msie[1];
+    }
+  }
+  return version;
+};

viz/out/goog/labs/useragent/engine.js

@@ -0,0 +1,156 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Closure user agent detection.
+ * @see http://en.wikipedia.org/wiki/User_agent
+ * For more information on browser brand, platform, or device see the other
+ * sub-namespaces in goog.labs.userAgent (browser, platform, and device).
+ *
+ */
+
+goog.provide('goog.labs.userAgent.engine');
+
+goog.require('goog.array');
+goog.require('goog.labs.userAgent.util');
+goog.require('goog.string');
+
+
+/**
+ * @return {boolean} Whether the rendering engine is Presto.
+ */
+goog.labs.userAgent.engine.isPresto = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Presto');
+};
+
+
+/**
+ * @return {boolean} Whether the rendering engine is Trident.
+ */
+goog.labs.userAgent.engine.isTrident = function() {
+  // IE only started including the Trident token in IE8.
+  return goog.labs.userAgent.util.matchUserAgent('Trident') ||
+      goog.labs.userAgent.util.matchUserAgent('MSIE');
+};
+
+
+/**
+ * @return {boolean} Whether the rendering engine is Edge.
+ */
+goog.labs.userAgent.engine.isEdge = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Edge');
+};
+
+
+/**
+ * @return {boolean} Whether the rendering engine is WebKit.
+ */
+goog.labs.userAgent.engine.isWebKit = function() {
+  return goog.labs.userAgent.util.matchUserAgentIgnoreCase('WebKit') &&
+      !goog.labs.userAgent.engine.isEdge();
+};
+
+
+/**
+ * @return {boolean} Whether the rendering engine is Gecko.
+ */
+goog.labs.userAgent.engine.isGecko = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Gecko') &&
+      !goog.labs.userAgent.engine.isWebKit() &&
+      !goog.labs.userAgent.engine.isTrident() &&
+      !goog.labs.userAgent.engine.isEdge();
+};
+
+
+/**
+ * @return {string} The rendering engine's version or empty string if version
+ *     can't be determined.
+ */
+goog.labs.userAgent.engine.getVersion = function() {
+  var userAgentString = goog.labs.userAgent.util.getUserAgent();
+  if (userAgentString) {
+    var tuples = goog.labs.userAgent.util.extractVersionTuples(userAgentString);
+
+    var engineTuple = goog.labs.userAgent.engine.getEngineTuple_(tuples);
+    if (engineTuple) {
+      // In Gecko, the version string is either in the browser info or the
+      // Firefox version.  See Gecko user agent string reference:
+      // http://goo.gl/mULqa
+      if (engineTuple[0] == 'Gecko') {
+        return goog.labs.userAgent.engine.getVersionForKey_(tuples, 'Firefox');
+      }
+
+      return engineTuple[1];
+    }
+
+    // MSIE has only one version identifier, and the Trident version is
+    // specified in the parenthetical. IE Edge is covered in the engine tuple
+    // detection.
+    var browserTuple = tuples[0];
+    var info;
+    if (browserTuple && (info = browserTuple[2])) {
+      var match = /Trident\/([^\s;]+)/.exec(info);
+      if (match) {
+        return match[1];
+      }
+    }
+  }
+  return '';
+};
+
+
+/**
+ * @param {!Array<!Array<string>>} tuples Extracted version tuples.
+ * @return {!Array<string>|undefined} The engine tuple or undefined if not
+ *     found.
+ * @private
+ */
+goog.labs.userAgent.engine.getEngineTuple_ = function(tuples) {
+  if (!goog.labs.userAgent.engine.isEdge()) {
+    return tuples[1];
+  }
+  for (var i = 0; i < tuples.length; i++) {
+    var tuple = tuples[i];
+    if (tuple[0] == 'Edge') {
+      return tuple;
+    }
+  }
+};
+
+
+/**
+ * @param {string|number} version The version to check.
+ * @return {boolean} Whether the rendering engine version is higher or the same
+ *     as the given version.
+ */
+goog.labs.userAgent.engine.isVersionOrHigher = function(version) {
+  return goog.string.compareVersions(
+             goog.labs.userAgent.engine.getVersion(), version) >= 0;
+};
+
+
+/**
+ * @param {!Array<!Array<string>>} tuples Version tuples.
+ * @param {string} key The key to look for.
+ * @return {string} The version string of the given key, if present.
+ *     Otherwise, the empty string.
+ * @private
+ */
+goog.labs.userAgent.engine.getVersionForKey_ = function(tuples, key) {
+  // TODO(nnaze): Move to util if useful elsewhere.
+
+  var pair = goog.array.find(tuples, function(pair) { return key == pair[0]; });
+
+  return pair && pair[1] || '';
+};

viz/out/goog/labs/useragent/platform.js

@@ -0,0 +1,160 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Closure user agent platform detection.
+ * @see <a href="http://www.useragentstring.com/">User agent strings</a>
+ * For more information on browser brand, rendering engine, or device see the
+ * other sub-namespaces in goog.labs.userAgent (browser, engine, and device
+ * respectively).
+ *
+ */
+
+goog.provide('goog.labs.userAgent.platform');
+
+goog.require('goog.labs.userAgent.util');
+goog.require('goog.string');
+
+
+/**
+ * @return {boolean} Whether the platform is Android.
+ */
+goog.labs.userAgent.platform.isAndroid = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Android');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iPod.
+ */
+goog.labs.userAgent.platform.isIpod = function() {
+  return goog.labs.userAgent.util.matchUserAgent('iPod');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iPhone.
+ */
+goog.labs.userAgent.platform.isIphone = function() {
+  return goog.labs.userAgent.util.matchUserAgent('iPhone') &&
+      !goog.labs.userAgent.util.matchUserAgent('iPod') &&
+      !goog.labs.userAgent.util.matchUserAgent('iPad');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iPad.
+ */
+goog.labs.userAgent.platform.isIpad = function() {
+  return goog.labs.userAgent.util.matchUserAgent('iPad');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iOS.
+ */
+goog.labs.userAgent.platform.isIos = function() {
+  return goog.labs.userAgent.platform.isIphone() ||
+      goog.labs.userAgent.platform.isIpad() ||
+      goog.labs.userAgent.platform.isIpod();
+};
+
+
+/**
+ * @return {boolean} Whether the platform is Mac.
+ */
+goog.labs.userAgent.platform.isMacintosh = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Macintosh');
+};
+
+
+/**
+ * Note: ChromeOS is not considered to be Linux as it does not report itself
+ * as Linux in the user agent string.
+ * @return {boolean} Whether the platform is Linux.
+ */
+goog.labs.userAgent.platform.isLinux = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Linux');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is Windows.
+ */
+goog.labs.userAgent.platform.isWindows = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Windows');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is ChromeOS.
+ */
+goog.labs.userAgent.platform.isChromeOS = function() {
+  return goog.labs.userAgent.util.matchUserAgent('CrOS');
+};
+
+
+/**
+ * The version of the platform. We only determine the version for Windows,
+ * Mac, and Chrome OS. It doesn't make much sense on Linux. For Windows, we only
+ * look at the NT version. Non-NT-based versions (e.g. 95, 98, etc.) are given
+ * version 0.0.
+ *
+ * @return {string} The platform version or empty string if version cannot be
+ *     determined.
+ */
+goog.labs.userAgent.platform.getVersion = function() {
+  var userAgentString = goog.labs.userAgent.util.getUserAgent();
+  var version = '', re;
+  if (goog.labs.userAgent.platform.isWindows()) {
+    re = /Windows (?:NT|Phone) ([0-9.]+)/;
+    var match = re.exec(userAgentString);
+    if (match) {
+      version = match[1];
+    } else {
+      version = '0.0';
+    }
+  } else if (goog.labs.userAgent.platform.isIos()) {
+    re = /(?:iPhone|iPod|iPad|CPU)\s+OS\s+(\S+)/;
+    var match = re.exec(userAgentString);
+    // Report the version as x.y.z and not x_y_z
+    version = match && match[1].replace(/_/g, '.');
+  } else if (goog.labs.userAgent.platform.isMacintosh()) {
+    re = /Mac OS X ([0-9_.]+)/;
+    var match = re.exec(userAgentString);
+    // Note: some old versions of Camino do not report an OSX version.
+    // Default to 10.
+    version = match ? match[1].replace(/_/g, '.') : '10';
+  } else if (goog.labs.userAgent.platform.isAndroid()) {
+    re = /Android\s+([^\);]+)(\)|;)/;
+    var match = re.exec(userAgentString);
+    version = match && match[1];
+  } else if (goog.labs.userAgent.platform.isChromeOS()) {
+    re = /(?:CrOS\s+(?:i686|x86_64)\s+([0-9.]+))/;
+    var match = re.exec(userAgentString);
+    version = match && match[1];
+  }
+  return version || '';
+};
+
+
+/**
+ * @param {string|number} version The version to check.
+ * @return {boolean} Whether the browser version is higher or the same as the
+ *     given version.
+ */
+goog.labs.userAgent.platform.isVersionOrHigher = function(version) {
+  return goog.string.compareVersions(
+             goog.labs.userAgent.platform.getVersion(), version) >= 0;
+};

viz/out/goog/labs/useragent/util.js

@@ -0,0 +1,147 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Utilities used by goog.labs.userAgent tools. These functions
+ * should not be used outside of goog.labs.userAgent.*.
+ *
+ *
+ * @author nnaze@google.com (Nathan Naze)
+ */
+
+goog.provide('goog.labs.userAgent.util');
+
+goog.require('goog.string');
+
+
+/**
+ * Gets the native userAgent string from navigator if it exists.
+ * If navigator or navigator.userAgent string is missing, returns an empty
+ * string.
+ * @return {string}
+ * @private
+ */
+goog.labs.userAgent.util.getNativeUserAgentString_ = function() {
+  var navigator = goog.labs.userAgent.util.getNavigator_();
+  if (navigator) {
+    var userAgent = navigator.userAgent;
+    if (userAgent) {
+      return userAgent;
+    }
+  }
+  return '';
+};
+
+
+/**
+ * Getter for the native navigator.
+ * This is a separate function so it can be stubbed out in testing.
+ * @return {Navigator}
+ * @private
+ */
+goog.labs.userAgent.util.getNavigator_ = function() {
+  return goog.global.navigator;
+};
+
+
+/**
+ * A possible override for applications which wish to not check
+ * navigator.userAgent but use a specified value for detection instead.
+ * @private {string}
+ */
+goog.labs.userAgent.util.userAgent_ =
+    goog.labs.userAgent.util.getNativeUserAgentString_();
+
+
+/**
+ * Applications may override browser detection on the built in
+ * navigator.userAgent object by setting this string. Set to null to use the
+ * browser object instead.
+ * @param {?string=} opt_userAgent The User-Agent override.
+ */
+goog.labs.userAgent.util.setUserAgent = function(opt_userAgent) {
+  goog.labs.userAgent.util.userAgent_ =
+      opt_userAgent || goog.labs.userAgent.util.getNativeUserAgentString_();
+};
+
+
+/**
+ * @return {string} The user agent string.
+ */
+goog.labs.userAgent.util.getUserAgent = function() {
+  return goog.labs.userAgent.util.userAgent_;
+};
+
+
+/**
+ * @param {string} str
+ * @return {boolean} Whether the user agent contains the given string, ignoring
+ *     case.
+ */
+goog.labs.userAgent.util.matchUserAgent = function(str) {
+  var userAgent = goog.labs.userAgent.util.getUserAgent();
+  return goog.string.contains(userAgent, str);
+};
+
+
+/**
+ * @param {string} str
+ * @return {boolean} Whether the user agent contains the given string.
+ */
+goog.labs.userAgent.util.matchUserAgentIgnoreCase = function(str) {
+  var userAgent = goog.labs.userAgent.util.getUserAgent();
+  return goog.string.caseInsensitiveContains(userAgent, str);
+};
+
+
+/**
+ * Parses the user agent into tuples for each section.
+ * @param {string} userAgent
+ * @return {!Array<!Array<string>>} Tuples of key, version, and the contents
+ *     of the parenthetical.
+ */
+goog.labs.userAgent.util.extractVersionTuples = function(userAgent) {
+  // Matches each section of a user agent string.
+  // Example UA:
+  // Mozilla/5.0 (iPad; U; CPU OS 3_2_1 like Mac OS X; en-us)
+  // AppleWebKit/531.21.10 (KHTML, like Gecko) Mobile/7B405
+  // This has three version tuples: Mozilla, AppleWebKit, and Mobile.
+
+  var versionRegExp = new RegExp(
+      // Key. Note that a key may have a space.
+      // (i.e. 'Mobile Safari' in 'Mobile Safari/5.0')
+      '(\\w[\\w ]+)' +
+
+          '/' +                // slash
+          '([^\\s]+)' +        // version (i.e. '5.0b')
+          '\\s*' +             // whitespace
+          '(?:\\((.*?)\\))?',  // parenthetical info. parentheses not matched.
+      'g');
+
+  var data = [];
+  var match;
+
+  // Iterate and collect the version tuples.  Each iteration will be the
+  // next regex match.
+  while (match = versionRegExp.exec(userAgent)) {
+    data.push([
+      match[1],  // key
+      match[2],  // value
+      // || undefined as this is not undefined in IE7 and IE8
+      match[3] || undefined  // info
+    ]);
+  }
+
+  return data;
+};

viz/out/goog/math/coordinate.js

@@ -0,0 +1,268 @@
+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview A utility class for representing two-dimensional positions.
+ */
+
+
+goog.provide('goog.math.Coordinate');
+
+goog.require('goog.math');
+
+
+
+/**
+ * Class for representing coordinates and positions.
+ * @param {number=} opt_x Left, defaults to 0.
+ * @param {number=} opt_y Top, defaults to 0.
+ * @struct
+ * @constructor
+ */
+goog.math.Coordinate = function(opt_x, opt_y) {
+  /**
+   * X-value
+   * @type {number}
+   */
+  this.x = goog.isDef(opt_x) ? opt_x : 0;
+
+  /**
+   * Y-value
+   * @type {number}
+   */
+  this.y = goog.isDef(opt_y) ? opt_y : 0;
+};
+
+
+/**
+ * Returns a new copy of the coordinate.
+ * @return {!goog.math.Coordinate} A clone of this coordinate.
+ */
+goog.math.Coordinate.prototype.clone = function() {
+  return new goog.math.Coordinate(this.x, this.y);
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a nice string representing the coordinate.
+   * @return {string} In the form (50, 73).
+   * @override
+   */
+  goog.math.Coordinate.prototype.toString = function() {
+    return '(' + this.x + ', ' + this.y + ')';
+  };
+}
+
+
+/**
+ * Compares coordinates for equality.
+ * @param {goog.math.Coordinate} a A Coordinate.
+ * @param {goog.math.Coordinate} b A Coordinate.
+ * @return {boolean} True iff the coordinates are equal, or if both are null.
+ */
+goog.math.Coordinate.equals = function(a, b) {
+  if (a == b) {
+    return true;
+  }
+  if (!a || !b) {
+    return false;
+  }
+  return a.x == b.x && a.y == b.y;
+};
+
+
+/**
+ * Returns the distance between two coordinates.
+ * @param {!goog.math.Coordinate} a A Coordinate.
+ * @param {!goog.math.Coordinate} b A Coordinate.
+ * @return {number} The distance between {@code a} and {@code b}.
+ */
+goog.math.Coordinate.distance = function(a, b) {
+  var dx = a.x - b.x;
+  var dy = a.y - b.y;
+  return Math.sqrt(dx * dx + dy * dy);
+};
+
+
+/**
+ * Returns the magnitude of a coordinate.
+ * @param {!goog.math.Coordinate} a A Coordinate.
+ * @return {number} The distance between the origin and {@code a}.
+ */
+goog.math.Coordinate.magnitude = function(a) {
+  return Math.sqrt(a.x * a.x + a.y * a.y);
+};
+
+
+/**
+ * Returns the angle from the origin to a coordinate.
+ * @param {!goog.math.Coordinate} a A Coordinate.
+ * @return {number} The angle, in degrees, clockwise from the positive X
+ *     axis to {@code a}.
+ */
+goog.math.Coordinate.azimuth = function(a) {
+  return goog.math.angle(0, 0, a.x, a.y);
+};
+
+
+/**
+ * Returns the squared distance between two coordinates. Squared distances can
+ * be used for comparisons when the actual value is not required.
+ *
+ * Performance note: eliminating the square root is an optimization often used
+ * in lower-level languages, but the speed difference is not nearly as
+ * pronounced in JavaScript (only a few percent.)
+ *
+ * @param {!goog.math.Coordinate} a A Coordinate.
+ * @param {!goog.math.Coordinate} b A Coordinate.
+ * @return {number} The squared distance between {@code a} and {@code b}.
+ */
+goog.math.Coordinate.squaredDistance = function(a, b) {
+  var dx = a.x - b.x;
+  var dy = a.y - b.y;
+  return dx * dx + dy * dy;
+};
+
+
+/**
+ * Returns the difference between two coordinates as a new
+ * goog.math.Coordinate.
+ * @param {!goog.math.Coordinate} a A Coordinate.
+ * @param {!goog.math.Coordinate} b A Coordinate.
+ * @return {!goog.math.Coordinate} A Coordinate representing the difference
+ *     between {@code a} and {@code b}.
+ */
+goog.math.Coordinate.difference = function(a, b) {
+  return new goog.math.Coordinate(a.x - b.x, a.y - b.y);
+};
+
+
+/**
+ * Returns the sum of two coordinates as a new goog.math.Coordinate.
+ * @param {!goog.math.Coordinate} a A Coordinate.
+ * @param {!goog.math.Coordinate} b A Coordinate.
+ * @return {!goog.math.Coordinate} A Coordinate representing the sum of the two
+ *     coordinates.
+ */
+goog.math.Coordinate.sum = function(a, b) {
+  return new goog.math.Coordinate(a.x + b.x, a.y + b.y);
+};
+
+
+/**
+ * Rounds the x and y fields to the next larger integer values.
+ * @return {!goog.math.Coordinate} This coordinate with ceil'd fields.
+ */
+goog.math.Coordinate.prototype.ceil = function() {
+  this.x = Math.ceil(this.x);
+  this.y = Math.ceil(this.y);
+  return this;
+};
+
+
+/**
+ * Rounds the x and y fields to the next smaller integer values.
+ * @return {!goog.math.Coordinate} This coordinate with floored fields.
+ */
+goog.math.Coordinate.prototype.floor = function() {
+  this.x = Math.floor(this.x);
+  this.y = Math.floor(this.y);
+  return this;
+};
+
+
+/**
+ * Rounds the x and y fields to the nearest integer values.
+ * @return {!goog.math.Coordinate} This coordinate with rounded fields.
+ */
+goog.math.Coordinate.prototype.round = function() {
+  this.x = Math.round(this.x);
+  this.y = Math.round(this.y);
+  return this;
+};
+
+
+/**
+ * Translates this box by the given offsets. If a {@code goog.math.Coordinate}
+ * is given, then the x and y values are translated by the coordinate's x and y.
+ * Otherwise, x and y are translated by {@code tx} and {@code opt_ty}
+ * respectively.
+ * @param {number|goog.math.Coordinate} tx The value to translate x by or the
+ *     the coordinate to translate this coordinate by.
+ * @param {number=} opt_ty The value to translate y by.
+ * @return {!goog.math.Coordinate} This coordinate after translating.
+ */
+goog.math.Coordinate.prototype.translate = function(tx, opt_ty) {
+  if (tx instanceof goog.math.Coordinate) {
+    this.x += tx.x;
+    this.y += tx.y;
+  } else {
+    this.x += Number(tx);
+    if (goog.isNumber(opt_ty)) {
+      this.y += opt_ty;
+    }
+  }
+  return this;
+};
+
+
+/**
+ * Scales this coordinate by the given scale factors. The x and y values are
+ * scaled by {@code sx} and {@code opt_sy} respectively.  If {@code opt_sy}
+ * is not given, then {@code sx} is used for both x and y.
+ * @param {number} sx The scale factor to use for the x dimension.
+ * @param {number=} opt_sy The scale factor to use for the y dimension.
+ * @return {!goog.math.Coordinate} This coordinate after scaling.
+ */
+goog.math.Coordinate.prototype.scale = function(sx, opt_sy) {
+  var sy = goog.isNumber(opt_sy) ? opt_sy : sx;
+  this.x *= sx;
+  this.y *= sy;
+  return this;
+};
+
+
+/**
+ * Rotates this coordinate clockwise about the origin (or, optionally, the given
+ * center) by the given angle, in radians.
+ * @param {number} radians The angle by which to rotate this coordinate
+ *     clockwise about the given center, in radians.
+ * @param {!goog.math.Coordinate=} opt_center The center of rotation. Defaults
+ *     to (0, 0) if not given.
+ */
+goog.math.Coordinate.prototype.rotateRadians = function(radians, opt_center) {
+  var center = opt_center || new goog.math.Coordinate(0, 0);
+
+  var x = this.x;
+  var y = this.y;
+  var cos = Math.cos(radians);
+  var sin = Math.sin(radians);
+
+  this.x = (x - center.x) * cos - (y - center.y) * sin + center.x;
+  this.y = (x - center.x) * sin + (y - center.y) * cos + center.y;
+};
+
+
+/**
+ * Rotates this coordinate clockwise about the origin (or, optionally, the given
+ * center) by the given angle, in degrees.
+ * @param {number} degrees The angle by which to rotate this coordinate
+ *     clockwise about the given center, in degrees.
+ * @param {!goog.math.Coordinate=} opt_center The center of rotation. Defaults
+ *     to (0, 0) if not given.
+ */
+goog.math.Coordinate.prototype.rotateDegrees = function(degrees, opt_center) {
+  this.rotateRadians(goog.math.toRadians(degrees), opt_center);
+};

viz/out/goog/math/integer.js

@@ -0,0 +1,807 @@
+// Copyright 2009 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Defines an Integer class for representing (potentially)
+ * infinite length two's-complement integer values.
+ *
+ * For the specific case of 64-bit integers, use goog.math.Long, which is more
+ * efficient.
+ *
+ */
+
+goog.provide('goog.math.Integer');
+
+
+
+/**
+ * Constructs a two's-complement integer an array containing bits of the
+ * integer in 32-bit (signed) pieces, given in little-endian order (i.e.,
+ * lowest-order bits in the first piece), and the sign of -1 or 0.
+ *
+ * See the from* functions below for other convenient ways of constructing
+ * Integers.
+ *
+ * The internal representation of an integer is an array of 32-bit signed
+ * pieces, along with a sign (0 or -1) that indicates the contents of all the
+ * other 32-bit pieces out to infinity.  We use 32-bit pieces because these are
+ * the size of integers on which Javascript performs bit-operations.  For
+ * operations like addition and multiplication, we split each number into 16-bit
+ * pieces, which can easily be multiplied within Javascript's floating-point
+ * representation without overflow or change in sign.
+ *
+ * @struct
+ * @constructor
+ * @param {Array<number>} bits Array containing the bits of the number.
+ * @param {number} sign The sign of the number: -1 for negative and 0 positive.
+ * @final
+ */
+goog.math.Integer = function(bits, sign) {
+  /**
+   * @type {!Array<number>}
+   * @private
+   */
+  this.bits_ = [];
+
+  /**
+   * @type {number}
+   * @private
+   */
+  this.sign_ = sign;
+
+  // Copy the 32-bit signed integer values passed in.  We prune out those at the
+  // top that equal the sign since they are redundant.
+  var top = true;
+  for (var i = bits.length - 1; i >= 0; i--) {
+    var val = bits[i] | 0;
+    if (!top || val != sign) {
+      this.bits_[i] = val;
+      top = false;
+    }
+  }
+};
+
+
+// NOTE: Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the
+// from* methods on which they depend.
+
+
+/**
+ * A cache of the Integer representations of small integer values.
+ * @type {!Object}
+ * @private
+ */
+goog.math.Integer.IntCache_ = {};
+
+
+/**
+ * Returns an Integer representing the given (32-bit) integer value.
+ * @param {number} value A 32-bit integer value.
+ * @return {!goog.math.Integer} The corresponding Integer value.
+ */
+goog.math.Integer.fromInt = function(value) {
+  if (-128 <= value && value < 128) {
+    var cachedObj = goog.math.Integer.IntCache_[value];
+    if (cachedObj) {
+      return cachedObj;
+    }
+  }
+
+  var obj = new goog.math.Integer([value | 0], value < 0 ? -1 : 0);
+  if (-128 <= value && value < 128) {
+    goog.math.Integer.IntCache_[value] = obj;
+  }
+  return obj;
+};
+
+
+/**
+ * Returns an Integer representing the given value, provided that it is a finite
+ * number.  Otherwise, zero is returned.
+ * @param {number} value The value in question.
+ * @return {!goog.math.Integer} The corresponding Integer value.
+ */
+goog.math.Integer.fromNumber = function(value) {
+  if (isNaN(value) || !isFinite(value)) {
+    return goog.math.Integer.ZERO;
+  } else if (value < 0) {
+    return goog.math.Integer.fromNumber(-value).negate();
+  } else {
+    var bits = [];
+    var pow = 1;
+    for (var i = 0; value >= pow; i++) {
+      bits[i] = (value / pow) | 0;
+      pow *= goog.math.Integer.TWO_PWR_32_DBL_;
+    }
+    return new goog.math.Integer(bits, 0);
+  }
+};
+
+
+/**
+ * Returns a Integer representing the value that comes by concatenating the
+ * given entries, each is assumed to be 32 signed bits, given in little-endian
+ * order (lowest order bits in the lowest index), and sign-extending the highest
+ * order 32-bit value.
+ * @param {Array<number>} bits The bits of the number, in 32-bit signed pieces,
+ *     in little-endian order.
+ * @return {!goog.math.Integer} The corresponding Integer value.
+ */
+goog.math.Integer.fromBits = function(bits) {
+  var high = bits[bits.length - 1];
+  return new goog.math.Integer(bits, high & (1 << 31) ? -1 : 0);
+};
+
+
+/**
+ * Returns an Integer representation of the given string, written using the
+ * given radix.
+ * @param {string} str The textual representation of the Integer.
+ * @param {number=} opt_radix The radix in which the text is written.
+ * @return {!goog.math.Integer} The corresponding Integer value.
+ */
+goog.math.Integer.fromString = function(str, opt_radix) {
+  if (str.length == 0) {
+    throw Error('number format error: empty string');
+  }
+
+  var radix = opt_radix || 10;
+  if (radix < 2 || 36 < radix) {
+    throw Error('radix out of range: ' + radix);
+  }
+
+  if (str.charAt(0) == '-') {
+    return goog.math.Integer.fromString(str.substring(1), radix).negate();
+  } else if (str.indexOf('-') >= 0) {
+    throw Error('number format error: interior "-" character');
+  }
+
+  // Do several (8) digits each time through the loop, so as to
+  // minimize the calls to the very expensive emulated div.
+  var radixToPower = goog.math.Integer.fromNumber(Math.pow(radix, 8));
+
+  var result = goog.math.Integer.ZERO;
+  for (var i = 0; i < str.length; i += 8) {
+    var size = Math.min(8, str.length - i);
+    var value = parseInt(str.substring(i, i + size), radix);
+    if (size < 8) {
+      var power = goog.math.Integer.fromNumber(Math.pow(radix, size));
+      result = result.multiply(power).add(goog.math.Integer.fromNumber(value));
+    } else {
+      result = result.multiply(radixToPower);
+      result = result.add(goog.math.Integer.fromNumber(value));
+    }
+  }
+  return result;
+};
+
+
+/**
+ * A number used repeatedly in calculations.  This must appear before the first
+ * call to the from* functions below.
+ * @type {number}
+ * @private
+ */
+goog.math.Integer.TWO_PWR_32_DBL_ = (1 << 16) * (1 << 16);
+
+
+/** @type {!goog.math.Integer} */
+goog.math.Integer.ZERO = goog.math.Integer.fromInt(0);
+
+
+/** @type {!goog.math.Integer} */
+goog.math.Integer.ONE = goog.math.Integer.fromInt(1);
+
+
+/**
+ * @type {!goog.math.Integer}
+ * @private
+ */
+goog.math.Integer.TWO_PWR_24_ = goog.math.Integer.fromInt(1 << 24);
+
+
+/**
+ * Returns the value, assuming it is a 32-bit integer.
+ * @return {number} The corresponding int value.
+ */
+goog.math.Integer.prototype.toInt = function() {
+  return this.bits_.length > 0 ? this.bits_[0] : this.sign_;
+};
+
+
+/** @return {number} The closest floating-point representation to this value. */
+goog.math.Integer.prototype.toNumber = function() {
+  if (this.isNegative()) {
+    return -this.negate().toNumber();
+  } else {
+    var val = 0;
+    var pow = 1;
+    for (var i = 0; i < this.bits_.length; i++) {
+      val += this.getBitsUnsigned(i) * pow;
+      pow *= goog.math.Integer.TWO_PWR_32_DBL_;
+    }
+    return val;
+  }
+};
+
+
+/**
+ * @param {number=} opt_radix The radix in which the text should be written.
+ * @return {string} The textual representation of this value.
+ * @override
+ */
+goog.math.Integer.prototype.toString = function(opt_radix) {
+  var radix = opt_radix || 10;
+  if (radix < 2 || 36 < radix) {
+    throw Error('radix out of range: ' + radix);
+  }
+
+  if (this.isZero()) {
+    return '0';
+  } else if (this.isNegative()) {
+    return '-' + this.negate().toString(radix);
+  }
+
+  // Do several (6) digits each time through the loop, so as to
+  // minimize the calls to the very expensive emulated div.
+  var radixToPower = goog.math.Integer.fromNumber(Math.pow(radix, 6));
+
+  var rem = this;
+  var result = '';
+  while (true) {
+    var remDiv = rem.divide(radixToPower);
+    // The right shifting fixes negative values in the case when
+    // intval >= 2^31; for more details see
+    // https://github.com/google/closure-library/pull/498
+    var intval = rem.subtract(remDiv.multiply(radixToPower)).toInt() >>> 0;
+    var digits = intval.toString(radix);
+
+    rem = remDiv;
+    if (rem.isZero()) {
+      return digits + result;
+    } else {
+      while (digits.length < 6) {
+        digits = '0' + digits;
+      }
+      result = '' + digits + result;
+    }
+  }
+};
+
+
+/**
+ * Returns the index-th 32-bit (signed) piece of the Integer according to
+ * little-endian order (i.e., index 0 contains the smallest bits).
+ * @param {number} index The index in question.
+ * @return {number} The requested 32-bits as a signed number.
+ */
+goog.math.Integer.prototype.getBits = function(index) {
+  if (index < 0) {
+    return 0;  // Allowing this simplifies bit shifting operations below...
+  } else if (index < this.bits_.length) {
+    return this.bits_[index];
+  } else {
+    return this.sign_;
+  }
+};
+
+
+/**
+ * Returns the index-th 32-bit piece as an unsigned number.
+ * @param {number} index The index in question.
+ * @return {number} The requested 32-bits as an unsigned number.
+ */
+goog.math.Integer.prototype.getBitsUnsigned = function(index) {
+  var val = this.getBits(index);
+  return val >= 0 ? val : goog.math.Integer.TWO_PWR_32_DBL_ + val;
+};
+
+
+/** @return {number} The sign bit of this number, -1 or 0. */
+goog.math.Integer.prototype.getSign = function() {
+  return this.sign_;
+};
+
+
+/** @return {boolean} Whether this value is zero. */
+goog.math.Integer.prototype.isZero = function() {
+  if (this.sign_ != 0) {
+    return false;
+  }
+  for (var i = 0; i < this.bits_.length; i++) {
+    if (this.bits_[i] != 0) {
+      return false;
+    }
+  }
+  return true;
+};
+
+
+/** @return {boolean} Whether this value is negative. */
+goog.math.Integer.prototype.isNegative = function() {
+  return this.sign_ == -1;
+};
+
+
+/** @return {boolean} Whether this value is odd. */
+goog.math.Integer.prototype.isOdd = function() {
+  return (this.bits_.length == 0) && (this.sign_ == -1) ||
+      (this.bits_.length > 0) && ((this.bits_[0] & 1) != 0);
+};
+
+
+/**
+ * @param {goog.math.Integer} other Integer to compare against.
+ * @return {boolean} Whether this Integer equals the other.
+ */
+goog.math.Integer.prototype.equals = function(other) {
+  if (this.sign_ != other.sign_) {
+    return false;
+  }
+  var len = Math.max(this.bits_.length, other.bits_.length);
+  for (var i = 0; i < len; i++) {
+    if (this.getBits(i) != other.getBits(i)) {
+      return false;
+    }
+  }
+  return true;
+};
+
+
+/**
+ * @param {goog.math.Integer} other Integer to compare against.
+ * @return {boolean} Whether this Integer does not equal the other.
+ */
+goog.math.Integer.prototype.notEquals = function(other) {
+  return !this.equals(other);
+};
+
+
+/**
+ * @param {goog.math.Integer} other Integer to compare against.
+ * @return {boolean} Whether this Integer is greater than the other.
+ */
+goog.math.Integer.prototype.greaterThan = function(other) {
+  return this.compare(other) > 0;
+};
+
+
+/**
+ * @param {goog.math.Integer} other Integer to compare against.
+ * @return {boolean} Whether this Integer is greater than or equal to the other.
+ */
+goog.math.Integer.prototype.greaterThanOrEqual = function(other) {
+  return this.compare(other) >= 0;
+};
+
+
+/**
+ * @param {goog.math.Integer} other Integer to compare against.
+ * @return {boolean} Whether this Integer is less than the other.
+ */
+goog.math.Integer.prototype.lessThan = function(other) {
+  return this.compare(other) < 0;
+};
+
+
+/**
+ * @param {goog.math.Integer} other Integer to compare against.
+ * @return {boolean} Whether this Integer is less than or equal to the other.
+ */
+goog.math.Integer.prototype.lessThanOrEqual = function(other) {
+  return this.compare(other) <= 0;
+};
+
+
+/**
+ * Compares this Integer with the given one.
+ * @param {goog.math.Integer} other Integer to compare against.
+ * @return {number} 0 if they are the same, 1 if the this is greater, and -1
+ *     if the given one is greater.
+ */
+goog.math.Integer.prototype.compare = function(other) {
+  var diff = this.subtract(other);
+  if (diff.isNegative()) {
+    return -1;
+  } else if (diff.isZero()) {
+    return 0;
+  } else {
+    return +1;
+  }
+};
+
+
+/**
+ * Returns an integer with only the first numBits bits of this value, sign
+ * extended from the final bit.
+ * @param {number} numBits The number of bits by which to shift.
+ * @return {!goog.math.Integer} The shorted integer value.
+ */
+goog.math.Integer.prototype.shorten = function(numBits) {
+  var arr_index = (numBits - 1) >> 5;
+  var bit_index = (numBits - 1) % 32;
+  var bits = [];
+  for (var i = 0; i < arr_index; i++) {
+    bits[i] = this.getBits(i);
+  }
+  var sigBits = bit_index == 31 ? 0xFFFFFFFF : (1 << (bit_index + 1)) - 1;
+  var val = this.getBits(arr_index) & sigBits;
+  if (val & (1 << bit_index)) {
+    val |= 0xFFFFFFFF - sigBits;
+    bits[arr_index] = val;
+    return new goog.math.Integer(bits, -1);
+  } else {
+    bits[arr_index] = val;
+    return new goog.math.Integer(bits, 0);
+  }
+};
+
+
+/** @return {!goog.math.Integer} The negation of this value. */
+goog.math.Integer.prototype.negate = function() {
+  return this.not().add(goog.math.Integer.ONE);
+};
+
+
+/**
+ * Returns the sum of this and the given Integer.
+ * @param {goog.math.Integer} other The Integer to add to this.
+ * @return {!goog.math.Integer} The Integer result.
+ */
+goog.math.Integer.prototype.add = function(other) {
+  var len = Math.max(this.bits_.length, other.bits_.length);
+  var arr = [];
+  var carry = 0;
+
+  for (var i = 0; i <= len; i++) {
+    var a1 = this.getBits(i) >>> 16;
+    var a0 = this.getBits(i) & 0xFFFF;
+
+    var b1 = other.getBits(i) >>> 16;
+    var b0 = other.getBits(i) & 0xFFFF;
+
+    var c0 = carry + a0 + b0;
+    var c1 = (c0 >>> 16) + a1 + b1;
+    carry = c1 >>> 16;
+    c0 &= 0xFFFF;
+    c1 &= 0xFFFF;
+    arr[i] = (c1 << 16) | c0;
+  }
+  return goog.math.Integer.fromBits(arr);
+};
+
+
+/**
+ * Returns the difference of this and the given Integer.
+ * @param {goog.math.Integer} other The Integer to subtract from this.
+ * @return {!goog.math.Integer} The Integer result.
+ */
+goog.math.Integer.prototype.subtract = function(other) {
+  return this.add(other.negate());
+};
+
+
+/**
+ * Returns the product of this and the given Integer.
+ * @param {goog.math.Integer} other The Integer to multiply against this.
+ * @return {!goog.math.Integer} The product of this and the other.
+ */
+goog.math.Integer.prototype.multiply = function(other) {
+  if (this.isZero()) {
+    return goog.math.Integer.ZERO;
+  } else if (other.isZero()) {
+    return goog.math.Integer.ZERO;
+  }
+
+  if (this.isNegative()) {
+    if (other.isNegative()) {
+      return this.negate().multiply(other.negate());
+    } else {
+      return this.negate().multiply(other).negate();
+    }
+  } else if (other.isNegative()) {
+    return this.multiply(other.negate()).negate();
+  }
+
+  // If both numbers are small, use float multiplication
+  if (this.lessThan(goog.math.Integer.TWO_PWR_24_) &&
+      other.lessThan(goog.math.Integer.TWO_PWR_24_)) {
+    return goog.math.Integer.fromNumber(this.toNumber() * other.toNumber());
+  }
+
+  // Fill in an array of 16-bit products.
+  var len = this.bits_.length + other.bits_.length;
+  var arr = [];
+  for (var i = 0; i < 2 * len; i++) {
+    arr[i] = 0;
+  }
+  for (var i = 0; i < this.bits_.length; i++) {
+    for (var j = 0; j < other.bits_.length; j++) {
+      var a1 = this.getBits(i) >>> 16;
+      var a0 = this.getBits(i) & 0xFFFF;
+
+      var b1 = other.getBits(j) >>> 16;
+      var b0 = other.getBits(j) & 0xFFFF;
+
+      arr[2 * i + 2 * j] += a0 * b0;
+      goog.math.Integer.carry16_(arr, 2 * i + 2 * j);
+      arr[2 * i + 2 * j + 1] += a1 * b0;
+      goog.math.Integer.carry16_(arr, 2 * i + 2 * j + 1);
+      arr[2 * i + 2 * j + 1] += a0 * b1;
+      goog.math.Integer.carry16_(arr, 2 * i + 2 * j + 1);
+      arr[2 * i + 2 * j + 2] += a1 * b1;
+      goog.math.Integer.carry16_(arr, 2 * i + 2 * j + 2);
+    }
+  }
+
+  // Combine the 16-bit values into 32-bit values.
+  for (var i = 0; i < len; i++) {
+    arr[i] = (arr[2 * i + 1] << 16) | arr[2 * i];
+  }
+  for (var i = len; i < 2 * len; i++) {
+    arr[i] = 0;
+  }
+  return new goog.math.Integer(arr, 0);
+};
+
+
+/**
+ * Carries any overflow from the given index into later entries.
+ * @param {Array<number>} bits Array of 16-bit values in little-endian order.
+ * @param {number} index The index in question.
+ * @private
+ */
+goog.math.Integer.carry16_ = function(bits, index) {
+  while ((bits[index] & 0xFFFF) != bits[index]) {
+    bits[index + 1] += bits[index] >>> 16;
+    bits[index] &= 0xFFFF;
+  }
+};
+
+
+/**
+ * Returns "this" Integer divided by the given one. Both "this" and the given
+ * Integer MUST be positive.
+ *
+ * This method is only needed for very large numbers (>10^308),
+ * for which the original division algorithm gets into an infinite
+ * loop (see https://github.com/google/closure-library/issues/500).
+ *
+ * The algorithm has some possible performance enhancements (or
+ * could be rewritten entirely), it's just an initial solution for
+ * the issue linked above.
+ *
+ * @param {!goog.math.Integer} other The Integer to divide "this" by.
+ * @return {!goog.math.Integer} "this" value divided by the given one.
+ * @private
+ */
+goog.math.Integer.prototype.slowDivide_ = function(other) {
+  if (this.isNegative() || other.isNegative()) {
+    throw Error('slowDivide_ only works with positive integers.');
+  }
+
+  var twoPower = goog.math.Integer.ONE;
+  var multiple = other;
+
+  // First we have to figure out what the highest bit of the result
+  // is, so we increase "twoPower" and "multiple" until "multiple"
+  // exceeds "this".
+  while (multiple.lessThanOrEqual(this)) {
+    twoPower = twoPower.shiftLeft(1);
+    multiple = multiple.shiftLeft(1);
+  }
+
+  // Rewind by one power of two, giving us the highest bit of the
+  // result.
+  var res = twoPower.shiftRight(1);
+  var total = multiple.shiftRight(1);
+
+  // Now we starting decreasing "multiple" and "twoPower" to find the
+  // rest of the bits of the result.
+  var total2;
+  multiple = multiple.shiftRight(2);
+  twoPower = twoPower.shiftRight(2);
+  while (!multiple.isZero()) {
+    // whenever we can add "multiple" to the total and not exceed
+    // "this", that means we've found a 1 bit. Else we've found a 0
+    // and don't need to add to the result.
+    total2 = total.add(multiple);
+    if (total2.lessThanOrEqual(this)) {
+      res = res.add(twoPower);
+      total = total2;
+    }
+    multiple = multiple.shiftRight(1);
+    twoPower = twoPower.shiftRight(1);
+  }
+  return res;
+};
+
+
+/**
+ * Returns this Integer divided by the given one.
+ * @param {!goog.math.Integer} other The Integer to divide this by.
+ * @return {!goog.math.Integer} This value divided by the given one.
+ */
+goog.math.Integer.prototype.divide = function(other) {
+  if (other.isZero()) {
+    throw Error('division by zero');
+  } else if (this.isZero()) {
+    return goog.math.Integer.ZERO;
+  }
+
+  if (this.isNegative()) {
+    if (other.isNegative()) {
+      return this.negate().divide(other.negate());
+    } else {
+      return this.negate().divide(other).negate();
+    }
+  } else if (other.isNegative()) {
+    return this.divide(other.negate()).negate();
+  }
+
+  // Have to degrade to slowDivide for Very Large Numbers, because
+  // they're out of range for the floating-point approximation
+  // technique used below.
+  if (this.bits_.length > 30) {
+    return this.slowDivide_(other);
+  }
+
+  // Repeat the following until the remainder is less than other:  find a
+  // floating-point that approximates remainder / other *from below*, add this
+  // into the result, and subtract it from the remainder.  It is critical that
+  // the approximate value is less than or equal to the real value so that the
+  // remainder never becomes negative.
+  var res = goog.math.Integer.ZERO;
+  var rem = this;
+  while (rem.greaterThanOrEqual(other)) {
+    // Approximate the result of division. This may be a little greater or
+    // smaller than the actual value.
+    var approx = Math.max(1, Math.floor(rem.toNumber() / other.toNumber()));
+
+    // We will tweak the approximate result by changing it in the 48-th digit or
+    // the smallest non-fractional digit, whichever is larger.
+    var log2 = Math.ceil(Math.log(approx) / Math.LN2);
+    var delta = (log2 <= 48) ? 1 : Math.pow(2, log2 - 48);
+
+    // Decrease the approximation until it is smaller than the remainder.  Note
+    // that if it is too large, the product overflows and is negative.
+    var approxRes = goog.math.Integer.fromNumber(approx);
+    var approxRem = approxRes.multiply(other);
+    while (approxRem.isNegative() || approxRem.greaterThan(rem)) {
+      approx -= delta;
+      approxRes = goog.math.Integer.fromNumber(approx);
+      approxRem = approxRes.multiply(other);
+    }
+
+    // We know the answer can't be zero... and actually, zero would cause
+    // infinite recursion since we would make no progress.
+    if (approxRes.isZero()) {
+      approxRes = goog.math.Integer.ONE;
+    }
+
+    res = res.add(approxRes);
+    rem = rem.subtract(approxRem);
+  }
+  return res;
+};
+
+
+/**
+ * Returns this Integer modulo the given one.
+ * @param {!goog.math.Integer} other The Integer by which to mod.
+ * @return {!goog.math.Integer} This value modulo the given one.
+ */
+goog.math.Integer.prototype.modulo = function(other) {
+  return this.subtract(this.divide(other).multiply(other));
+};
+
+
+/** @return {!goog.math.Integer} The bitwise-NOT of this value. */
+goog.math.Integer.prototype.not = function() {
+  var len = this.bits_.length;
+  var arr = [];
+  for (var i = 0; i < len; i++) {
+    arr[i] = ~this.bits_[i];
+  }
+  return new goog.math.Integer(arr, ~this.sign_);
+};
+
+
+/**
+ * Returns the bitwise-AND of this Integer and the given one.
+ * @param {goog.math.Integer} other The Integer to AND with this.
+ * @return {!goog.math.Integer} The bitwise-AND of this and the other.
+ */
+goog.math.Integer.prototype.and = function(other) {
+  var len = Math.max(this.bits_.length, other.bits_.length);
+  var arr = [];
+  for (var i = 0; i < len; i++) {
+    arr[i] = this.getBits(i) & other.getBits(i);
+  }
+  return new goog.math.Integer(arr, this.sign_ & other.sign_);
+};
+
+
+/**
+ * Returns the bitwise-OR of this Integer and the given one.
+ * @param {goog.math.Integer} other The Integer to OR with this.
+ * @return {!goog.math.Integer} The bitwise-OR of this and the other.
+ */
+goog.math.Integer.prototype.or = function(other) {
+  var len = Math.max(this.bits_.length, other.bits_.length);
+  var arr = [];
+  for (var i = 0; i < len; i++) {
+    arr[i] = this.getBits(i) | other.getBits(i);
+  }
+  return new goog.math.Integer(arr, this.sign_ | other.sign_);
+};
+
+
+/**
+ * Returns the bitwise-XOR of this Integer and the given one.
+ * @param {goog.math.Integer} other The Integer to XOR with this.
+ * @return {!goog.math.Integer} The bitwise-XOR of this and the other.
+ */
+goog.math.Integer.prototype.xor = function(other) {
+  var len = Math.max(this.bits_.length, other.bits_.length);
+  var arr = [];
+  for (var i = 0; i < len; i++) {
+    arr[i] = this.getBits(i) ^ other.getBits(i);
+  }
+  return new goog.math.Integer(arr, this.sign_ ^ other.sign_);
+};
+
+
+/**
+ * Returns this value with bits shifted to the left by the given amount.
+ * @param {number} numBits The number of bits by which to shift.
+ * @return {!goog.math.Integer} This shifted to the left by the given amount.
+ */
+goog.math.Integer.prototype.shiftLeft = function(numBits) {
+  var arr_delta = numBits >> 5;
+  var bit_delta = numBits % 32;
+  var len = this.bits_.length + arr_delta + (bit_delta > 0 ? 1 : 0);
+  var arr = [];
+  for (var i = 0; i < len; i++) {
+    if (bit_delta > 0) {
+      arr[i] = (this.getBits(i - arr_delta) << bit_delta) |
+          (this.getBits(i - arr_delta - 1) >>> (32 - bit_delta));
+    } else {
+      arr[i] = this.getBits(i - arr_delta);
+    }
+  }
+  return new goog.math.Integer(arr, this.sign_);
+};
+
+
+/**
+ * Returns this value with bits shifted to the right by the given amount.
+ * @param {number} numBits The number of bits by which to shift.
+ * @return {!goog.math.Integer} This shifted to the right by the given amount.
+ */
+goog.math.Integer.prototype.shiftRight = function(numBits) {
+  var arr_delta = numBits >> 5;
+  var bit_delta = numBits % 32;
+  var len = this.bits_.length - arr_delta;
+  var arr = [];
+  for (var i = 0; i < len; i++) {
+    if (bit_delta > 0) {
+      arr[i] = (this.getBits(i + arr_delta) >>> bit_delta) |
+          (this.getBits(i + arr_delta + 1) << (32 - bit_delta));
+    } else {
+      arr[i] = this.getBits(i + arr_delta);
+    }
+  }
+  return new goog.math.Integer(arr, this.sign_);
+};

viz/out/goog/math/long.js

@@ -0,0 +1,843 @@
+// Copyright 2009 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Defines a Long class for representing a 64-bit two's-complement
+ * integer value, which faithfully simulates the behavior of a Java "long". This
+ * implementation is derived from LongLib in GWT.
+ *
+ */
+
+goog.provide('goog.math.Long');
+
+goog.require('goog.reflect');
+
+
+
+/**
+ * Constructs a 64-bit two's-complement integer, given its low and high 32-bit
+ * values as *signed* integers.  See the from* functions below for more
+ * convenient ways of constructing Longs.
+ *
+ * The internal representation of a long is the two given signed, 32-bit values.
+ * We use 32-bit pieces because these are the size of integers on which
+ * Javascript performs bit-operations.  For operations like addition and
+ * multiplication, we split each number into 16-bit pieces, which can easily be
+ * multiplied within Javascript's floating-point representation without overflow
+ * or change in sign.
+ *
+ * In the algorithms below, we frequently reduce the negative case to the
+ * positive case by negating the input(s) and then post-processing the result.
+ * Note that we must ALWAYS check specially whether those values are MIN_VALUE
+ * (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
+ * a positive number, it overflows back into a negative).  Not handling this
+ * case would often result in infinite recursion.
+ *
+ * @param {number} low  The low (signed) 32 bits of the long.
+ * @param {number} high  The high (signed) 32 bits of the long.
+ * @struct
+ * @constructor
+ * @final
+ */
+goog.math.Long = function(low, high) {
+  /**
+   * @type {number}
+   * @private
+   */
+  this.low_ = low | 0;  // force into 32 signed bits.
+
+  /**
+   * @type {number}
+   * @private
+   */
+  this.high_ = high | 0;  // force into 32 signed bits.
+};
+
+
+// NOTE: Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the
+// from* methods on which they depend.
+
+
+/**
+ * A cache of the Long representations of small integer values.
+ * @type {!Object<number, !goog.math.Long>}
+ * @private
+ */
+goog.math.Long.IntCache_ = {};
+
+
+/**
+ * A cache of the Long representations of common values.
+ * @type {!Object<goog.math.Long.ValueCacheId_, !goog.math.Long>}
+ * @private
+ */
+goog.math.Long.valueCache_ = {};
+
+
+/**
+ * Returns a Long representing the given (32-bit) integer value.
+ * @param {number} value The 32-bit integer in question.
+ * @return {!goog.math.Long} The corresponding Long value.
+ */
+goog.math.Long.fromInt = function(value) {
+  if (-128 <= value && value < 128) {
+    return goog.reflect.cache(goog.math.Long.IntCache_, value, function(val) {
+      return new goog.math.Long(val | 0, val < 0 ? -1 : 0);
+    });
+  } else {
+    return new goog.math.Long(value | 0, value < 0 ? -1 : 0);
+  }
+};
+
+
+/**
+ * Returns a Long representing the given value.
+ * NaN will be returned as zero. Infinity is converted to max value and
+ * -Infinity to min value.
+ * @param {number} value The number in question.
+ * @return {!goog.math.Long} The corresponding Long value.
+ */
+goog.math.Long.fromNumber = function(value) {
+  if (isNaN(value)) {
+    return goog.math.Long.getZero();
+  } else if (value <= -goog.math.Long.TWO_PWR_63_DBL_) {
+    return goog.math.Long.getMinValue();
+  } else if (value + 1 >= goog.math.Long.TWO_PWR_63_DBL_) {
+    return goog.math.Long.getMaxValue();
+  } else if (value < 0) {
+    return goog.math.Long.fromNumber(-value).negate();
+  } else {
+    return new goog.math.Long(
+        (value % goog.math.Long.TWO_PWR_32_DBL_) | 0,
+        (value / goog.math.Long.TWO_PWR_32_DBL_) | 0);
+  }
+};
+
+
+/**
+ * Returns a Long representing the 64-bit integer that comes by concatenating
+ * the given high and low bits.  Each is assumed to use 32 bits.
+ * @param {number} lowBits The low 32-bits.
+ * @param {number} highBits The high 32-bits.
+ * @return {!goog.math.Long} The corresponding Long value.
+ */
+goog.math.Long.fromBits = function(lowBits, highBits) {
+  return new goog.math.Long(lowBits, highBits);
+};
+
+
+/**
+ * Returns a Long representation of the given string, written using the given
+ * radix.
+ * @param {string} str The textual representation of the Long.
+ * @param {number=} opt_radix The radix in which the text is written.
+ * @return {!goog.math.Long} The corresponding Long value.
+ */
+goog.math.Long.fromString = function(str, opt_radix) {
+  if (str.length == 0) {
+    throw Error('number format error: empty string');
+  }
+
+  var radix = opt_radix || 10;
+  if (radix < 2 || 36 < radix) {
+    throw Error('radix out of range: ' + radix);
+  }
+
+  if (str.charAt(0) == '-') {
+    return goog.math.Long.fromString(str.substring(1), radix).negate();
+  } else if (str.indexOf('-') >= 0) {
+    throw Error('number format error: interior "-" character: ' + str);
+  }
+
+  // Do several (8) digits each time through the loop, so as to
+  // minimize the calls to the very expensive emulated div.
+  var radixToPower = goog.math.Long.fromNumber(Math.pow(radix, 8));
+
+  var result = goog.math.Long.getZero();
+  for (var i = 0; i < str.length; i += 8) {
+    var size = Math.min(8, str.length - i);
+    var value = parseInt(str.substring(i, i + size), radix);
+    if (size < 8) {
+      var power = goog.math.Long.fromNumber(Math.pow(radix, size));
+      result = result.multiply(power).add(goog.math.Long.fromNumber(value));
+    } else {
+      result = result.multiply(radixToPower);
+      result = result.add(goog.math.Long.fromNumber(value));
+    }
+  }
+  return result;
+};
+
+
+// NOTE: the compiler should inline these constant values below and then remove
+// these variables, so there should be no runtime penalty for these.
+
+
+/**
+ * Number used repeated below in calculations.  This must appear before the
+ * first call to any from* function below.
+ * @type {number}
+ * @private
+ */
+goog.math.Long.TWO_PWR_16_DBL_ = 1 << 16;
+
+
+/**
+ * @type {number}
+ * @private
+ */
+goog.math.Long.TWO_PWR_32_DBL_ =
+    goog.math.Long.TWO_PWR_16_DBL_ * goog.math.Long.TWO_PWR_16_DBL_;
+
+
+/**
+ * @type {number}
+ * @private
+ */
+goog.math.Long.TWO_PWR_64_DBL_ =
+    goog.math.Long.TWO_PWR_32_DBL_ * goog.math.Long.TWO_PWR_32_DBL_;
+
+
+/**
+ * @type {number}
+ * @private
+ */
+goog.math.Long.TWO_PWR_63_DBL_ = goog.math.Long.TWO_PWR_64_DBL_ / 2;
+
+
+/**
+ * @return {!goog.math.Long}
+ * @public
+ */
+goog.math.Long.getZero = function() {
+  return goog.reflect.cache(
+      goog.math.Long.valueCache_, goog.math.Long.ValueCacheId_.ZERO,
+      function() { return goog.math.Long.fromInt(0); });
+};
+
+
+/**
+ * @return {!goog.math.Long}
+ * @public
+ */
+goog.math.Long.getOne = function() {
+  return goog.reflect.cache(
+      goog.math.Long.valueCache_, goog.math.Long.ValueCacheId_.ONE,
+      function() { return goog.math.Long.fromInt(1); });
+};
+
+
+/**
+ * @return {!goog.math.Long}
+ * @public
+ */
+goog.math.Long.getNegOne = function() {
+  return goog.reflect.cache(
+      goog.math.Long.valueCache_, goog.math.Long.ValueCacheId_.NEG_ONE,
+      function() { return goog.math.Long.fromInt(-1); });
+};
+
+
+/**
+ * @return {!goog.math.Long}
+ * @public
+ */
+goog.math.Long.getMaxValue = function() {
+  return goog.reflect.cache(
+      goog.math.Long.valueCache_, goog.math.Long.ValueCacheId_.MAX_VALUE,
+      function() {
+        return goog.math.Long.fromBits(0xFFFFFFFF | 0, 0x7FFFFFFF | 0);
+      });
+};
+
+
+/**
+ * @return {!goog.math.Long}
+ * @public
+ */
+goog.math.Long.getMinValue = function() {
+  return goog.reflect.cache(
+      goog.math.Long.valueCache_, goog.math.Long.ValueCacheId_.MIN_VALUE,
+      function() { return goog.math.Long.fromBits(0, 0x80000000 | 0); });
+};
+
+
+/**
+ * @return {!goog.math.Long}
+ * @public
+ */
+goog.math.Long.getTwoPwr24 = function() {
+  return goog.reflect.cache(
+      goog.math.Long.valueCache_, goog.math.Long.ValueCacheId_.TWO_PWR_24,
+      function() { return goog.math.Long.fromInt(1 << 24); });
+};
+
+
+/** @return {number} The value, assuming it is a 32-bit integer. */
+goog.math.Long.prototype.toInt = function() {
+  return this.low_;
+};
+
+
+/** @return {number} The closest floating-point representation to this value. */
+goog.math.Long.prototype.toNumber = function() {
+  return this.high_ * goog.math.Long.TWO_PWR_32_DBL_ +
+      this.getLowBitsUnsigned();
+};
+
+
+/**
+ * @param {number=} opt_radix The radix in which the text should be written.
+ * @return {string} The textual representation of this value.
+ * @override
+ */
+goog.math.Long.prototype.toString = function(opt_radix) {
+  var radix = opt_radix || 10;
+  if (radix < 2 || 36 < radix) {
+    throw Error('radix out of range: ' + radix);
+  }
+
+  if (this.isZero()) {
+    return '0';
+  }
+
+  if (this.isNegative()) {
+    if (this.equals(goog.math.Long.getMinValue())) {
+      // We need to change the Long value before it can be negated, so we remove
+      // the bottom-most digit in this base and then recurse to do the rest.
+      var radixLong = goog.math.Long.fromNumber(radix);
+      var div = this.div(radixLong);
+      var rem = div.multiply(radixLong).subtract(this);
+      return div.toString(radix) + rem.toInt().toString(radix);
+    } else {
+      return '-' + this.negate().toString(radix);
+    }
+  }
+
+  // Do several (6) digits each time through the loop, so as to
+  // minimize the calls to the very expensive emulated div.
+  var radixToPower = goog.math.Long.fromNumber(Math.pow(radix, 6));
+
+  var rem = this;
+  var result = '';
+  while (true) {
+    var remDiv = rem.div(radixToPower);
+    // The right shifting fixes negative values in the case when
+    // intval >= 2^31; for more details see
+    // https://github.com/google/closure-library/pull/498
+    var intval = rem.subtract(remDiv.multiply(radixToPower)).toInt() >>> 0;
+    var digits = intval.toString(radix);
+
+    rem = remDiv;
+    if (rem.isZero()) {
+      return digits + result;
+    } else {
+      while (digits.length < 6) {
+        digits = '0' + digits;
+      }
+      result = '' + digits + result;
+    }
+  }
+};
+
+
+/** @return {number} The high 32-bits as a signed value. */
+goog.math.Long.prototype.getHighBits = function() {
+  return this.high_;
+};
+
+
+/** @return {number} The low 32-bits as a signed value. */
+goog.math.Long.prototype.getLowBits = function() {
+  return this.low_;
+};
+
+
+/** @return {number} The low 32-bits as an unsigned value. */
+goog.math.Long.prototype.getLowBitsUnsigned = function() {
+  return (this.low_ >= 0) ? this.low_ :
+                            goog.math.Long.TWO_PWR_32_DBL_ + this.low_;
+};
+
+
+/**
+ * @return {number} Returns the number of bits needed to represent the absolute
+ *     value of this Long.
+ */
+goog.math.Long.prototype.getNumBitsAbs = function() {
+  if (this.isNegative()) {
+    if (this.equals(goog.math.Long.getMinValue())) {
+      return 64;
+    } else {
+      return this.negate().getNumBitsAbs();
+    }
+  } else {
+    var val = this.high_ != 0 ? this.high_ : this.low_;
+    for (var bit = 31; bit > 0; bit--) {
+      if ((val & (1 << bit)) != 0) {
+        break;
+      }
+    }
+    return this.high_ != 0 ? bit + 33 : bit + 1;
+  }
+};
+
+
+/** @return {boolean} Whether this value is zero. */
+goog.math.Long.prototype.isZero = function() {
+  return this.high_ == 0 && this.low_ == 0;
+};
+
+
+/** @return {boolean} Whether this value is negative. */
+goog.math.Long.prototype.isNegative = function() {
+  return this.high_ < 0;
+};
+
+
+/** @return {boolean} Whether this value is odd. */
+goog.math.Long.prototype.isOdd = function() {
+  return (this.low_ & 1) == 1;
+};
+
+
+/**
+ * @param {goog.math.Long} other Long to compare against.
+ * @return {boolean} Whether this Long equals the other.
+ */
+goog.math.Long.prototype.equals = function(other) {
+  return (this.high_ == other.high_) && (this.low_ == other.low_);
+};
+
+
+/**
+ * @param {goog.math.Long} other Long to compare against.
+ * @return {boolean} Whether this Long does not equal the other.
+ */
+goog.math.Long.prototype.notEquals = function(other) {
+  return (this.high_ != other.high_) || (this.low_ != other.low_);
+};
+
+
+/**
+ * @param {goog.math.Long} other Long to compare against.
+ * @return {boolean} Whether this Long is less than the other.
+ */
+goog.math.Long.prototype.lessThan = function(other) {
+  return this.compare(other) < 0;
+};
+
+
+/**
+ * @param {goog.math.Long} other Long to compare against.
+ * @return {boolean} Whether this Long is less than or equal to the other.
+ */
+goog.math.Long.prototype.lessThanOrEqual = function(other) {
+  return this.compare(other) <= 0;
+};
+
+
+/**
+ * @param {goog.math.Long} other Long to compare against.
+ * @return {boolean} Whether this Long is greater than the other.
+ */
+goog.math.Long.prototype.greaterThan = function(other) {
+  return this.compare(other) > 0;
+};
+
+
+/**
+ * @param {goog.math.Long} other Long to compare against.
+ * @return {boolean} Whether this Long is greater than or equal to the other.
+ */
+goog.math.Long.prototype.greaterThanOrEqual = function(other) {
+  return this.compare(other) >= 0;
+};
+
+
+/**
+ * Compares this Long with the given one.
+ * @param {goog.math.Long} other Long to compare against.
+ * @return {number} 0 if they are the same, 1 if the this is greater, and -1
+ *     if the given one is greater.
+ */
+goog.math.Long.prototype.compare = function(other) {
+  if (this.equals(other)) {
+    return 0;
+  }
+
+  var thisNeg = this.isNegative();
+  var otherNeg = other.isNegative();
+  if (thisNeg && !otherNeg) {
+    return -1;
+  }
+  if (!thisNeg && otherNeg) {
+    return 1;
+  }
+
+  // at this point, the signs are the same, so subtraction will not overflow
+  if (this.subtract(other).isNegative()) {
+    return -1;
+  } else {
+    return 1;
+  }
+};
+
+
+/** @return {!goog.math.Long} The negation of this value. */
+goog.math.Long.prototype.negate = function() {
+  if (this.equals(goog.math.Long.getMinValue())) {
+    return goog.math.Long.getMinValue();
+  } else {
+    return this.not().add(goog.math.Long.getOne());
+  }
+};
+
+
+/**
+ * Returns the sum of this and the given Long.
+ * @param {goog.math.Long} other Long to add to this one.
+ * @return {!goog.math.Long} The sum of this and the given Long.
+ */
+goog.math.Long.prototype.add = function(other) {
+  // Divide each number into 4 chunks of 16 bits, and then sum the chunks.
+
+  var a48 = this.high_ >>> 16;
+  var a32 = this.high_ & 0xFFFF;
+  var a16 = this.low_ >>> 16;
+  var a00 = this.low_ & 0xFFFF;
+
+  var b48 = other.high_ >>> 16;
+  var b32 = other.high_ & 0xFFFF;
+  var b16 = other.low_ >>> 16;
+  var b00 = other.low_ & 0xFFFF;
+
+  var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+  c00 += a00 + b00;
+  c16 += c00 >>> 16;
+  c00 &= 0xFFFF;
+  c16 += a16 + b16;
+  c32 += c16 >>> 16;
+  c16 &= 0xFFFF;
+  c32 += a32 + b32;
+  c48 += c32 >>> 16;
+  c32 &= 0xFFFF;
+  c48 += a48 + b48;
+  c48 &= 0xFFFF;
+  return goog.math.Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32);
+};
+
+
+/**
+ * Returns the difference of this and the given Long.
+ * @param {goog.math.Long} other Long to subtract from this.
+ * @return {!goog.math.Long} The difference of this and the given Long.
+ */
+goog.math.Long.prototype.subtract = function(other) {
+  return this.add(other.negate());
+};
+
+
+/**
+ * Returns the product of this and the given long.
+ * @param {goog.math.Long} other Long to multiply with this.
+ * @return {!goog.math.Long} The product of this and the other.
+ */
+goog.math.Long.prototype.multiply = function(other) {
+  if (this.isZero()) {
+    return goog.math.Long.getZero();
+  } else if (other.isZero()) {
+    return goog.math.Long.getZero();
+  }
+
+  if (this.equals(goog.math.Long.getMinValue())) {
+    return other.isOdd() ? goog.math.Long.getMinValue() :
+                           goog.math.Long.getZero();
+  } else if (other.equals(goog.math.Long.getMinValue())) {
+    return this.isOdd() ? goog.math.Long.getMinValue() :
+                          goog.math.Long.getZero();
+  }
+
+  if (this.isNegative()) {
+    if (other.isNegative()) {
+      return this.negate().multiply(other.negate());
+    } else {
+      return this.negate().multiply(other).negate();
+    }
+  } else if (other.isNegative()) {
+    return this.multiply(other.negate()).negate();
+  }
+
+  // If both longs are small, use float multiplication
+  if (this.lessThan(goog.math.Long.getTwoPwr24()) &&
+      other.lessThan(goog.math.Long.getTwoPwr24())) {
+    return goog.math.Long.fromNumber(this.toNumber() * other.toNumber());
+  }
+
+  // Divide each long into 4 chunks of 16 bits, and then add up 4x4 products.
+  // We can skip products that would overflow.
+
+  var a48 = this.high_ >>> 16;
+  var a32 = this.high_ & 0xFFFF;
+  var a16 = this.low_ >>> 16;
+  var a00 = this.low_ & 0xFFFF;
+
+  var b48 = other.high_ >>> 16;
+  var b32 = other.high_ & 0xFFFF;
+  var b16 = other.low_ >>> 16;
+  var b00 = other.low_ & 0xFFFF;
+
+  var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+  c00 += a00 * b00;
+  c16 += c00 >>> 16;
+  c00 &= 0xFFFF;
+  c16 += a16 * b00;
+  c32 += c16 >>> 16;
+  c16 &= 0xFFFF;
+  c16 += a00 * b16;
+  c32 += c16 >>> 16;
+  c16 &= 0xFFFF;
+  c32 += a32 * b00;
+  c48 += c32 >>> 16;
+  c32 &= 0xFFFF;
+  c32 += a16 * b16;
+  c48 += c32 >>> 16;
+  c32 &= 0xFFFF;
+  c32 += a00 * b32;
+  c48 += c32 >>> 16;
+  c32 &= 0xFFFF;
+  c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
+  c48 &= 0xFFFF;
+  return goog.math.Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32);
+};
+
+
+/**
+ * Returns this Long divided by the given one.
+ * @param {goog.math.Long} other Long by which to divide.
+ * @return {!goog.math.Long} This Long divided by the given one.
+ */
+goog.math.Long.prototype.div = function(other) {
+  if (other.isZero()) {
+    throw Error('division by zero');
+  } else if (this.isZero()) {
+    return goog.math.Long.getZero();
+  }
+
+  if (this.equals(goog.math.Long.getMinValue())) {
+    if (other.equals(goog.math.Long.getOne()) ||
+        other.equals(goog.math.Long.getNegOne())) {
+      return goog.math.Long.getMinValue();  // recall -MIN_VALUE == MIN_VALUE
+    } else if (other.equals(goog.math.Long.getMinValue())) {
+      return goog.math.Long.getOne();
+    } else {
+      // At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
+      var halfThis = this.shiftRight(1);
+      var approx = halfThis.div(other).shiftLeft(1);
+      if (approx.equals(goog.math.Long.getZero())) {
+        return other.isNegative() ? goog.math.Long.getOne() :
+                                    goog.math.Long.getNegOne();
+      } else {
+        var rem = this.subtract(other.multiply(approx));
+        var result = approx.add(rem.div(other));
+        return result;
+      }
+    }
+  } else if (other.equals(goog.math.Long.getMinValue())) {
+    return goog.math.Long.getZero();
+  }
+
+  if (this.isNegative()) {
+    if (other.isNegative()) {
+      return this.negate().div(other.negate());
+    } else {
+      return this.negate().div(other).negate();
+    }
+  } else if (other.isNegative()) {
+    return this.div(other.negate()).negate();
+  }
+
+  // Repeat the following until the remainder is less than other:  find a
+  // floating-point that approximates remainder / other *from below*, add this
+  // into the result, and subtract it from the remainder.  It is critical that
+  // the approximate value is less than or equal to the real value so that the
+  // remainder never becomes negative.
+  var res = goog.math.Long.getZero();
+  var rem = this;
+  while (rem.greaterThanOrEqual(other)) {
+    // Approximate the result of division. This may be a little greater or
+    // smaller than the actual value.
+    var approx = Math.max(1, Math.floor(rem.toNumber() / other.toNumber()));
+
+    // We will tweak the approximate result by changing it in the 48-th digit or
+    // the smallest non-fractional digit, whichever is larger.
+    var log2 = Math.ceil(Math.log(approx) / Math.LN2);
+    var delta = (log2 <= 48) ? 1 : Math.pow(2, log2 - 48);
+
+    // Decrease the approximation until it is smaller than the remainder.  Note
+    // that if it is too large, the product overflows and is negative.
+    var approxRes = goog.math.Long.fromNumber(approx);
+    var approxRem = approxRes.multiply(other);
+    while (approxRem.isNegative() || approxRem.greaterThan(rem)) {
+      approx -= delta;
+      approxRes = goog.math.Long.fromNumber(approx);
+      approxRem = approxRes.multiply(other);
+    }
+
+    // We know the answer can't be zero... and actually, zero would cause
+    // infinite recursion since we would make no progress.
+    if (approxRes.isZero()) {
+      approxRes = goog.math.Long.getOne();
+    }
+
+    res = res.add(approxRes);
+    rem = rem.subtract(approxRem);
+  }
+  return res;
+};
+
+
+/**
+ * Returns this Long modulo the given one.
+ * @param {goog.math.Long} other Long by which to mod.
+ * @return {!goog.math.Long} This Long modulo the given one.
+ */
+goog.math.Long.prototype.modulo = function(other) {
+  return this.subtract(this.div(other).multiply(other));
+};
+
+
+/** @return {!goog.math.Long} The bitwise-NOT of this value. */
+goog.math.Long.prototype.not = function() {
+  return goog.math.Long.fromBits(~this.low_, ~this.high_);
+};
+
+
+/**
+ * Returns the bitwise-AND of this Long and the given one.
+ * @param {goog.math.Long} other The Long with which to AND.
+ * @return {!goog.math.Long} The bitwise-AND of this and the other.
+ */
+goog.math.Long.prototype.and = function(other) {
+  return goog.math.Long.fromBits(
+      this.low_ & other.low_, this.high_ & other.high_);
+};
+
+
+/**
+ * Returns the bitwise-OR of this Long and the given one.
+ * @param {goog.math.Long} other The Long with which to OR.
+ * @return {!goog.math.Long} The bitwise-OR of this and the other.
+ */
+goog.math.Long.prototype.or = function(other) {
+  return goog.math.Long.fromBits(
+      this.low_ | other.low_, this.high_ | other.high_);
+};
+
+
+/**
+ * Returns the bitwise-XOR of this Long and the given one.
+ * @param {goog.math.Long} other The Long with which to XOR.
+ * @return {!goog.math.Long} The bitwise-XOR of this and the other.
+ */
+goog.math.Long.prototype.xor = function(other) {
+  return goog.math.Long.fromBits(
+      this.low_ ^ other.low_, this.high_ ^ other.high_);
+};
+
+
+/**
+ * Returns this Long with bits shifted to the left by the given amount.
+ * @param {number} numBits The number of bits by which to shift.
+ * @return {!goog.math.Long} This shifted to the left by the given amount.
+ */
+goog.math.Long.prototype.shiftLeft = function(numBits) {
+  numBits &= 63;
+  if (numBits == 0) {
+    return this;
+  } else {
+    var low = this.low_;
+    if (numBits < 32) {
+      var high = this.high_;
+      return goog.math.Long.fromBits(
+          low << numBits, (high << numBits) | (low >>> (32 - numBits)));
+    } else {
+      return goog.math.Long.fromBits(0, low << (numBits - 32));
+    }
+  }
+};
+
+
+/**
+ * Returns this Long with bits shifted to the right by the given amount.
+ * The new leading bits match the current sign bit.
+ * @param {number} numBits The number of bits by which to shift.
+ * @return {!goog.math.Long} This shifted to the right by the given amount.
+ */
+goog.math.Long.prototype.shiftRight = function(numBits) {
+  numBits &= 63;
+  if (numBits == 0) {
+    return this;
+  } else {
+    var high = this.high_;
+    if (numBits < 32) {
+      var low = this.low_;
+      return goog.math.Long.fromBits(
+          (low >>> numBits) | (high << (32 - numBits)), high >> numBits);
+    } else {
+      return goog.math.Long.fromBits(
+          high >> (numBits - 32), high >= 0 ? 0 : -1);
+    }
+  }
+};
+
+
+/**
+ * Returns this Long with bits shifted to the right by the given amount, with
+ * zeros placed into the new leading bits.
+ * @param {number} numBits The number of bits by which to shift.
+ * @return {!goog.math.Long} This shifted to the right by the given amount, with
+ *     zeros placed into the new leading bits.
+ */
+goog.math.Long.prototype.shiftRightUnsigned = function(numBits) {
+  numBits &= 63;
+  if (numBits == 0) {
+    return this;
+  } else {
+    var high = this.high_;
+    if (numBits < 32) {
+      var low = this.low_;
+      return goog.math.Long.fromBits(
+          (low >>> numBits) | (high << (32 - numBits)), high >>> numBits);
+    } else if (numBits == 32) {
+      return goog.math.Long.fromBits(high, 0);
+    } else {
+      return goog.math.Long.fromBits(high >>> (numBits - 32), 0);
+    }
+  }
+};
+
+
+/**
+ * @enum {number} Ids of commonly requested Long instances.
+ * @private
+ */
+goog.math.Long.ValueCacheId_ = {
+  MAX_VALUE: 1,
+  MIN_VALUE: 2,
+  ZERO: 3,
+  ONE: 4,
+  NEG_ONE: 5,
+  TWO_PWR_24: 6
+};

viz/out/goog/math/math.js

@@ -0,0 +1,447 @@
+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Additional mathematical functions.
+ */
+
+goog.provide('goog.math');
+
+goog.require('goog.array');
+goog.require('goog.asserts');
+
+
+/**
+ * Returns a random integer greater than or equal to 0 and less than {@code a}.
+ * @param {number} a  The upper bound for the random integer (exclusive).
+ * @return {number} A random integer N such that 0 <= N < a.
+ */
+goog.math.randomInt = function(a) {
+  return Math.floor(Math.random() * a);
+};
+
+
+/**
+ * Returns a random number greater than or equal to {@code a} and less than
+ * {@code b}.
+ * @param {number} a  The lower bound for the random number (inclusive).
+ * @param {number} b  The upper bound for the random number (exclusive).
+ * @return {number} A random number N such that a <= N < b.
+ */
+goog.math.uniformRandom = function(a, b) {
+  return a + Math.random() * (b - a);
+};
+
+
+/**
+ * Takes a number and clamps it to within the provided bounds.
+ * @param {number} value The input number.
+ * @param {number} min The minimum value to return.
+ * @param {number} max The maximum value to return.
+ * @return {number} The input number if it is within bounds, or the nearest
+ *     number within the bounds.
+ */
+goog.math.clamp = function(value, min, max) {
+  return Math.min(Math.max(value, min), max);
+};
+
+
+/**
+ * The % operator in JavaScript returns the remainder of a / b, but differs from
+ * some other languages in that the result will have the same sign as the
+ * dividend. For example, -1 % 8 == -1, whereas in some other languages
+ * (such as Python) the result would be 7. This function emulates the more
+ * correct modulo behavior, which is useful for certain applications such as
+ * calculating an offset index in a circular list.
+ *
+ * @param {number} a The dividend.
+ * @param {number} b The divisor.
+ * @return {number} a % b where the result is between 0 and b (either 0 <= x < b
+ *     or b < x <= 0, depending on the sign of b).
+ */
+goog.math.modulo = function(a, b) {
+  var r = a % b;
+  // If r and b differ in sign, add b to wrap the result to the correct sign.
+  return (r * b < 0) ? r + b : r;
+};
+
+
+/**
+ * Performs linear interpolation between values a and b. Returns the value
+ * between a and b proportional to x (when x is between 0 and 1. When x is
+ * outside this range, the return value is a linear extrapolation).
+ * @param {number} a A number.
+ * @param {number} b A number.
+ * @param {number} x The proportion between a and b.
+ * @return {number} The interpolated value between a and b.
+ */
+goog.math.lerp = function(a, b, x) {
+  return a + x * (b - a);
+};
+
+
+/**
+ * Tests whether the two values are equal to each other, within a certain
+ * tolerance to adjust for floating point errors.
+ * @param {number} a A number.
+ * @param {number} b A number.
+ * @param {number=} opt_tolerance Optional tolerance range. Defaults
+ *     to 0.000001. If specified, should be greater than 0.
+ * @return {boolean} Whether {@code a} and {@code b} are nearly equal.
+ */
+goog.math.nearlyEquals = function(a, b, opt_tolerance) {
+  return Math.abs(a - b) <= (opt_tolerance || 0.000001);
+};
+
+
+// TODO(user): Rename to normalizeAngle, retaining old name as deprecated
+// alias.
+/**
+ * Normalizes an angle to be in range [0-360). Angles outside this range will
+ * be normalized to be the equivalent angle with that range.
+ * @param {number} angle Angle in degrees.
+ * @return {number} Standardized angle.
+ */
+goog.math.standardAngle = function(angle) {
+  return goog.math.modulo(angle, 360);
+};
+
+
+/**
+ * Normalizes an angle to be in range [0-2*PI). Angles outside this range will
+ * be normalized to be the equivalent angle with that range.
+ * @param {number} angle Angle in radians.
+ * @return {number} Standardized angle.
+ */
+goog.math.standardAngleInRadians = function(angle) {
+  return goog.math.modulo(angle, 2 * Math.PI);
+};
+
+
+/**
+ * Converts degrees to radians.
+ * @param {number} angleDegrees Angle in degrees.
+ * @return {number} Angle in radians.
+ */
+goog.math.toRadians = function(angleDegrees) {
+  return angleDegrees * Math.PI / 180;
+};
+
+
+/**
+ * Converts radians to degrees.
+ * @param {number} angleRadians Angle in radians.
+ * @return {number} Angle in degrees.
+ */
+goog.math.toDegrees = function(angleRadians) {
+  return angleRadians * 180 / Math.PI;
+};
+
+
+/**
+ * For a given angle and radius, finds the X portion of the offset.
+ * @param {number} degrees Angle in degrees (zero points in +X direction).
+ * @param {number} radius Radius.
+ * @return {number} The x-distance for the angle and radius.
+ */
+goog.math.angleDx = function(degrees, radius) {
+  return radius * Math.cos(goog.math.toRadians(degrees));
+};
+
+
+/**
+ * For a given angle and radius, finds the Y portion of the offset.
+ * @param {number} degrees Angle in degrees (zero points in +X direction).
+ * @param {number} radius Radius.
+ * @return {number} The y-distance for the angle and radius.
+ */
+goog.math.angleDy = function(degrees, radius) {
+  return radius * Math.sin(goog.math.toRadians(degrees));
+};
+
+
+/**
+ * Computes the angle between two points (x1,y1) and (x2,y2).
+ * Angle zero points in the +X direction, 90 degrees points in the +Y
+ * direction (down) and from there we grow clockwise towards 360 degrees.
+ * @param {number} x1 x of first point.
+ * @param {number} y1 y of first point.
+ * @param {number} x2 x of second point.
+ * @param {number} y2 y of second point.
+ * @return {number} Standardized angle in degrees of the vector from
+ *     x1,y1 to x2,y2.
+ */
+goog.math.angle = function(x1, y1, x2, y2) {
+  return goog.math.standardAngle(
+      goog.math.toDegrees(Math.atan2(y2 - y1, x2 - x1)));
+};
+
+
+/**
+ * Computes the difference between startAngle and endAngle (angles in degrees).
+ * @param {number} startAngle  Start angle in degrees.
+ * @param {number} endAngle  End angle in degrees.
+ * @return {number} The number of degrees that when added to
+ *     startAngle will result in endAngle. Positive numbers mean that the
+ *     direction is clockwise. Negative numbers indicate a counter-clockwise
+ *     direction.
+ *     The shortest route (clockwise vs counter-clockwise) between the angles
+ *     is used.
+ *     When the difference is 180 degrees, the function returns 180 (not -180)
+ *     angleDifference(30, 40) is 10, and angleDifference(40, 30) is -10.
+ *     angleDifference(350, 10) is 20, and angleDifference(10, 350) is -20.
+ */
+goog.math.angleDifference = function(startAngle, endAngle) {
+  var d =
+      goog.math.standardAngle(endAngle) - goog.math.standardAngle(startAngle);
+  if (d > 180) {
+    d = d - 360;
+  } else if (d <= -180) {
+    d = 360 + d;
+  }
+  return d;
+};
+
+
+/**
+ * Returns the sign of a number as per the "sign" or "signum" function.
+ * @param {number} x The number to take the sign of.
+ * @return {number} -1 when negative, 1 when positive, 0 when 0. Preserves
+ *     signed zeros and NaN.
+ */
+goog.math.sign = Math.sign || function(x) {
+  if (x > 0) {
+    return 1;
+  }
+  if (x < 0) {
+    return -1;
+  }
+  return x;  // Preserves signed zeros and NaN.
+};
+
+
+/**
+ * JavaScript implementation of Longest Common Subsequence problem.
+ * http://en.wikipedia.org/wiki/Longest_common_subsequence
+ *
+ * Returns the longest possible array that is subarray of both of given arrays.
+ *
+ * @param {IArrayLike<S>} array1 First array of objects.
+ * @param {IArrayLike<T>} array2 Second array of objects.
+ * @param {Function=} opt_compareFn Function that acts as a custom comparator
+ *     for the array ojects. Function should return true if objects are equal,
+ *     otherwise false.
+ * @param {Function=} opt_collectorFn Function used to decide what to return
+ *     as a result subsequence. It accepts 2 arguments: index of common element
+ *     in the first array and index in the second. The default function returns
+ *     element from the first array.
+ * @return {!Array<S|T>} A list of objects that are common to both arrays
+ *     such that there is no common subsequence with size greater than the
+ *     length of the list.
+ * @template S,T
+ */
+goog.math.longestCommonSubsequence = function(
+    array1, array2, opt_compareFn, opt_collectorFn) {
+
+  var compare = opt_compareFn || function(a, b) { return a == b; };
+
+  var collect = opt_collectorFn || function(i1, i2) { return array1[i1]; };
+
+  var length1 = array1.length;
+  var length2 = array2.length;
+
+  var arr = [];
+  for (var i = 0; i < length1 + 1; i++) {
+    arr[i] = [];
+    arr[i][0] = 0;
+  }
+
+  for (var j = 0; j < length2 + 1; j++) {
+    arr[0][j] = 0;
+  }
+
+  for (i = 1; i <= length1; i++) {
+    for (j = 1; j <= length2; j++) {
+      if (compare(array1[i - 1], array2[j - 1])) {
+        arr[i][j] = arr[i - 1][j - 1] + 1;
+      } else {
+        arr[i][j] = Math.max(arr[i - 1][j], arr[i][j - 1]);
+      }
+    }
+  }
+
+  // Backtracking
+  var result = [];
+  var i = length1, j = length2;
+  while (i > 0 && j > 0) {
+    if (compare(array1[i - 1], array2[j - 1])) {
+      result.unshift(collect(i - 1, j - 1));
+      i--;
+      j--;
+    } else {
+      if (arr[i - 1][j] > arr[i][j - 1]) {
+        i--;
+      } else {
+        j--;
+      }
+    }
+  }
+
+  return result;
+};
+
+
+/**
+ * Returns the sum of the arguments.
+ * @param {...number} var_args Numbers to add.
+ * @return {number} The sum of the arguments (0 if no arguments were provided,
+ *     {@code NaN} if any of the arguments is not a valid number).
+ */
+goog.math.sum = function(var_args) {
+  return /** @type {number} */ (
+      goog.array.reduce(
+          arguments, function(sum, value) { return sum + value; }, 0));
+};
+
+
+/**
+ * Returns the arithmetic mean of the arguments.
+ * @param {...number} var_args Numbers to average.
+ * @return {number} The average of the arguments ({@code NaN} if no arguments
+ *     were provided or any of the arguments is not a valid number).
+ */
+goog.math.average = function(var_args) {
+  return goog.math.sum.apply(null, arguments) / arguments.length;
+};
+
+
+/**
+ * Returns the unbiased sample variance of the arguments. For a definition,
+ * see e.g. http://en.wikipedia.org/wiki/Variance
+ * @param {...number} var_args Number samples to analyze.
+ * @return {number} The unbiased sample variance of the arguments (0 if fewer
+ *     than two samples were provided, or {@code NaN} if any of the samples is
+ *     not a valid number).
+ */
+goog.math.sampleVariance = function(var_args) {
+  var sampleSize = arguments.length;
+  if (sampleSize < 2) {
+    return 0;
+  }
+
+  var mean = goog.math.average.apply(null, arguments);
+  var variance =
+      goog.math.sum.apply(null, goog.array.map(arguments, function(val) {
+        return Math.pow(val - mean, 2);
+      })) / (sampleSize - 1);
+
+  return variance;
+};
+
+
+/**
+ * Returns the sample standard deviation of the arguments.  For a definition of
+ * sample standard deviation, see e.g.
+ * http://en.wikipedia.org/wiki/Standard_deviation
+ * @param {...number} var_args Number samples to analyze.
+ * @return {number} The sample standard deviation of the arguments (0 if fewer
+ *     than two samples were provided, or {@code NaN} if any of the samples is
+ *     not a valid number).
+ */
+goog.math.standardDeviation = function(var_args) {
+  return Math.sqrt(goog.math.sampleVariance.apply(null, arguments));
+};
+
+
+/**
+ * Returns whether the supplied number represents an integer, i.e. that is has
+ * no fractional component.  No range-checking is performed on the number.
+ * @param {number} num The number to test.
+ * @return {boolean} Whether {@code num} is an integer.
+ */
+goog.math.isInt = function(num) {
+  return isFinite(num) && num % 1 == 0;
+};
+
+
+/**
+ * Returns whether the supplied number is finite and not NaN.
+ * @param {number} num The number to test.
+ * @return {boolean} Whether {@code num} is a finite number.
+ */
+goog.math.isFiniteNumber = function(num) {
+  return isFinite(num) && !isNaN(num);
+};
+
+
+/**
+ * @param {number} num The number to test.
+ * @return {boolean} Whether it is negative zero.
+ */
+goog.math.isNegativeZero = function(num) {
+  return num == 0 && 1 / num < 0;
+};
+
+
+/**
+ * Returns the precise value of floor(log10(num)).
+ * Simpler implementations didn't work because of floating point rounding
+ * errors. For example
+ * <ul>
+ * <li>Math.floor(Math.log(num) / Math.LN10) is off by one for num == 1e+3.
+ * <li>Math.floor(Math.log(num) * Math.LOG10E) is off by one for num == 1e+15.
+ * <li>Math.floor(Math.log10(num)) is off by one for num == 1e+15 - 1.
+ * </ul>
+ * @param {number} num A floating point number.
+ * @return {number} Its logarithm to base 10 rounded down to the nearest
+ *     integer if num > 0. -Infinity if num == 0. NaN if num < 0.
+ */
+goog.math.log10Floor = function(num) {
+  if (num > 0) {
+    var x = Math.round(Math.log(num) * Math.LOG10E);
+    return x - (parseFloat('1e' + x) > num ? 1 : 0);
+  }
+  return num == 0 ? -Infinity : NaN;
+};
+
+
+/**
+ * A tweaked variant of {@code Math.floor} which tolerates if the passed number
+ * is infinitesimally smaller than the closest integer. It often happens with
+ * the results of floating point calculations because of the finite precision
+ * of the intermediate results. For example {@code Math.floor(Math.log(1000) /
+ * Math.LN10) == 2}, not 3 as one would expect.
+ * @param {number} num A number.
+ * @param {number=} opt_epsilon An infinitesimally small positive number, the
+ *     rounding error to tolerate.
+ * @return {number} The largest integer less than or equal to {@code num}.
+ */
+goog.math.safeFloor = function(num, opt_epsilon) {
+  goog.asserts.assert(!goog.isDef(opt_epsilon) || opt_epsilon > 0);
+  return Math.floor(num + (opt_epsilon || 2e-15));
+};
+
+
+/**
+ * A tweaked variant of {@code Math.ceil}. See {@code goog.math.safeFloor} for
+ * details.
+ * @param {number} num A number.
+ * @param {number=} opt_epsilon An infinitesimally small positive number, the
+ *     rounding error to tolerate.
+ * @return {number} The smallest integer greater than or equal to {@code num}.
+ */
+goog.math.safeCeil = function(num, opt_epsilon) {
+  goog.asserts.assert(!goog.isDef(opt_epsilon) || opt_epsilon > 0);
+  return Math.ceil(num - (opt_epsilon || 2e-15));
+};

viz/out/goog/math/size.js

@@ -0,0 +1,227 @@
+// Copyright 2007 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview A utility class for representing two-dimensional sizes.
+ * @author brenneman@google.com (Shawn Brenneman)
+ */
+
+
+goog.provide('goog.math.Size');
+
+
+
+/**
+ * Class for representing sizes consisting of a width and height. Undefined
+ * width and height support is deprecated and results in compiler warning.
+ * @param {number} width Width.
+ * @param {number} height Height.
+ * @struct
+ * @constructor
+ */
+goog.math.Size = function(width, height) {
+  /**
+   * Width
+   * @type {number}
+   */
+  this.width = width;
+
+  /**
+   * Height
+   * @type {number}
+   */
+  this.height = height;
+};
+
+
+/**
+ * Compares sizes for equality.
+ * @param {goog.math.Size} a A Size.
+ * @param {goog.math.Size} b A Size.
+ * @return {boolean} True iff the sizes have equal widths and equal
+ *     heights, or if both are null.
+ */
+goog.math.Size.equals = function(a, b) {
+  if (a == b) {
+    return true;
+  }
+  if (!a || !b) {
+    return false;
+  }
+  return a.width == b.width && a.height == b.height;
+};
+
+
+/**
+ * @return {!goog.math.Size} A new copy of the Size.
+ */
+goog.math.Size.prototype.clone = function() {
+  return new goog.math.Size(this.width, this.height);
+};
+
+
+if (goog.DEBUG) {
+  /**
+   * Returns a nice string representing size.
+   * @return {string} In the form (50 x 73).
+   * @override
+   */
+  goog.math.Size.prototype.toString = function() {
+    return '(' + this.width + ' x ' + this.height + ')';
+  };
+}
+
+
+/**
+ * @return {number} The longer of the two dimensions in the size.
+ */
+goog.math.Size.prototype.getLongest = function() {
+  return Math.max(this.width, this.height);
+};
+
+
+/**
+ * @return {number} The shorter of the two dimensions in the size.
+ */
+goog.math.Size.prototype.getShortest = function() {
+  return Math.min(this.width, this.height);
+};
+
+
+/**
+ * @return {number} The area of the size (width * height).
+ */
+goog.math.Size.prototype.area = function() {
+  return this.width * this.height;
+};
+
+
+/**
+ * @return {number} The perimeter of the size (width + height) * 2.
+ */
+goog.math.Size.prototype.perimeter = function() {
+  return (this.width + this.height) * 2;
+};
+
+
+/**
+ * @return {number} The ratio of the size's width to its height.
+ */
+goog.math.Size.prototype.aspectRatio = function() {
+  return this.width / this.height;
+};
+
+
+/**
+ * @return {boolean} True if the size has zero area, false if both dimensions
+ *     are non-zero numbers.
+ */
+goog.math.Size.prototype.isEmpty = function() {
+  return !this.area();
+};
+
+
+/**
+ * Clamps the width and height parameters upward to integer values.
+ * @return {!goog.math.Size} This size with ceil'd components.
+ */
+goog.math.Size.prototype.ceil = function() {
+  this.width = Math.ceil(this.width);
+  this.height = Math.ceil(this.height);
+  return this;
+};
+
+
+/**
+ * @param {!goog.math.Size} target The target size.
+ * @return {boolean} True if this Size is the same size or smaller than the
+ *     target size in both dimensions.
+ */
+goog.math.Size.prototype.fitsInside = function(target) {
+  return this.width <= target.width && this.height <= target.height;
+};
+
+
+/**
+ * Clamps the width and height parameters downward to integer values.
+ * @return {!goog.math.Size} This size with floored components.
+ */
+goog.math.Size.prototype.floor = function() {
+  this.width = Math.floor(this.width);
+  this.height = Math.floor(this.height);
+  return this;
+};
+
+
+/**
+ * Rounds the width and height parameters to integer values.
+ * @return {!goog.math.Size} This size with rounded components.
+ */
+goog.math.Size.prototype.round = function() {
+  this.width = Math.round(this.width);
+  this.height = Math.round(this.height);
+  return this;
+};
+
+
+/**
+ * Scales this size by the given scale factors. The width and height are scaled
+ * by {@code sx} and {@code opt_sy} respectively.  If {@code opt_sy} is not
+ * given, then {@code sx} is used for both the width and height.
+ * @param {number} sx The scale factor to use for the width.
+ * @param {number=} opt_sy The scale factor to use for the height.
+ * @return {!goog.math.Size} This Size object after scaling.
+ */
+goog.math.Size.prototype.scale = function(sx, opt_sy) {
+  var sy = goog.isNumber(opt_sy) ? opt_sy : sx;
+  this.width *= sx;
+  this.height *= sy;
+  return this;
+};
+
+
+/**
+ * Uniformly scales the size to perfectly cover the dimensions of a given size.
+ * If the size is already larger than the target, it will be scaled down to the
+ * minimum size at which it still covers the entire target. The original aspect
+ * ratio will be preserved.
+ *
+ * This function assumes that both Sizes contain strictly positive dimensions.
+ * @param {!goog.math.Size} target The target size.
+ * @return {!goog.math.Size} This Size object, after optional scaling.
+ */
+goog.math.Size.prototype.scaleToCover = function(target) {
+  var s = this.aspectRatio() <= target.aspectRatio() ?
+      target.width / this.width :
+      target.height / this.height;
+
+  return this.scale(s);
+};
+
+
+/**
+ * Uniformly scales the size to fit inside the dimensions of a given size. The
+ * original aspect ratio will be preserved.
+ *
+ * This function assumes that both Sizes contain strictly positive dimensions.
+ * @param {!goog.math.Size} target The target size.
+ * @return {!goog.math.Size} This Size object, after optional scaling.
+ */
+goog.math.Size.prototype.scaleToFit = function(target) {
+  var s = this.aspectRatio() > target.aspectRatio() ?
+      target.width / this.width :
+      target.height / this.height;
+
+  return this.scale(s);
+};

viz/out/goog/object/object.js

@@ -0,0 +1,705 @@
+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Utilities for manipulating objects/maps/hashes.
+ * @author arv@google.com (Erik Arvidsson)
+ */
+
+goog.provide('goog.object');
+
+
+/**
+ * Whether two values are not observably distinguishable. This
+ * correctly detects that 0 is not the same as -0 and two NaNs are
+ * practically equivalent.
+ *
+ * The implementation is as suggested by harmony:egal proposal.
+ *
+ * @param {*} v The first value to compare.
+ * @param {*} v2 The second value to compare.
+ * @return {boolean} Whether two values are not observably distinguishable.
+ * @see http://wiki.ecmascript.org/doku.php?id=harmony:egal
+ */
+goog.object.is = function(v, v2) {
+  if (v === v2) {
+    // 0 === -0, but they are not identical.
+    // We need the cast because the compiler requires that v2 is a
+    // number (although 1/v2 works with non-number). We cast to ? to
+    // stop the compiler from type-checking this statement.
+    return v !== 0 || 1 / v === 1 / /** @type {?} */ (v2);
+  }
+
+  // NaN is non-reflexive: NaN !== NaN, although they are identical.
+  return v !== v && v2 !== v2;
+};
+
+
+/**
+ * Calls a function for each element in an object/map/hash.
+ *
+ * @param {Object<K,V>} obj The object over which to iterate.
+ * @param {function(this:T,V,?,Object<K,V>):?} f The function to call
+ *     for every element. This function takes 3 arguments (the value, the
+ *     key and the object) and the return value is ignored.
+ * @param {T=} opt_obj This is used as the 'this' object within f.
+ * @template T,K,V
+ */
+goog.object.forEach = function(obj, f, opt_obj) {
+  for (var key in obj) {
+    f.call(/** @type {?} */ (opt_obj), obj[key], key, obj);
+  }
+};
+
+
+/**
+ * Calls a function for each element in an object/map/hash. If that call returns
+ * true, adds the element to a new object.
+ *
+ * @param {Object<K,V>} obj The object over which to iterate.
+ * @param {function(this:T,V,?,Object<K,V>):boolean} f The function to call
+ *     for every element. This
+ *     function takes 3 arguments (the value, the key and the object)
+ *     and should return a boolean. If the return value is true the
+ *     element is added to the result object. If it is false the
+ *     element is not included.
+ * @param {T=} opt_obj This is used as the 'this' object within f.
+ * @return {!Object<K,V>} a new object in which only elements that passed the
+ *     test are present.
+ * @template T,K,V
+ */
+goog.object.filter = function(obj, f, opt_obj) {
+  var res = {};
+  for (var key in obj) {
+    if (f.call(/** @type {?} */ (opt_obj), obj[key], key, obj)) {
+      res[key] = obj[key];
+    }
+  }
+  return res;
+};
+
+
+/**
+ * For every element in an object/map/hash calls a function and inserts the
+ * result into a new object.
+ *
+ * @param {Object<K,V>} obj The object over which to iterate.
+ * @param {function(this:T,V,?,Object<K,V>):R} f The function to call
+ *     for every element. This function
+ *     takes 3 arguments (the value, the key and the object)
+ *     and should return something. The result will be inserted
+ *     into a new object.
+ * @param {T=} opt_obj This is used as the 'this' object within f.
+ * @return {!Object<K,R>} a new object with the results from f.
+ * @template T,K,V,R
+ */
+goog.object.map = function(obj, f, opt_obj) {
+  var res = {};
+  for (var key in obj) {
+    res[key] = f.call(/** @type {?} */ (opt_obj), obj[key], key, obj);
+  }
+  return res;
+};
+
+
+/**
+ * Calls a function for each element in an object/map/hash. If any
+ * call returns true, returns true (without checking the rest). If
+ * all calls return false, returns false.
+ *
+ * @param {Object<K,V>} obj The object to check.
+ * @param {function(this:T,V,?,Object<K,V>):boolean} f The function to
+ *     call for every element. This function
+ *     takes 3 arguments (the value, the key and the object) and should
+ *     return a boolean.
+ * @param {T=} opt_obj This is used as the 'this' object within f.
+ * @return {boolean} true if any element passes the test.
+ * @template T,K,V
+ */
+goog.object.some = function(obj, f, opt_obj) {
+  for (var key in obj) {
+    if (f.call(/** @type {?} */ (opt_obj), obj[key], key, obj)) {
+      return true;
+    }
+  }
+  return false;
+};
+
+
+/**
+ * Calls a function for each element in an object/map/hash. If
+ * all calls return true, returns true. If any call returns false, returns
+ * false at this point and does not continue to check the remaining elements.
+ *
+ * @param {Object<K,V>} obj The object to check.
+ * @param {?function(this:T,V,?,Object<K,V>):boolean} f The function to
+ *     call for every element. This function
+ *     takes 3 arguments (the value, the key and the object) and should
+ *     return a boolean.
+ * @param {T=} opt_obj This is used as the 'this' object within f.
+ * @return {boolean} false if any element fails the test.
+ * @template T,K,V
+ */
+goog.object.every = function(obj, f, opt_obj) {
+  for (var key in obj) {
+    if (!f.call(/** @type {?} */ (opt_obj), obj[key], key, obj)) {
+      return false;
+    }
+  }
+  return true;
+};
+
+
+/**
+ * Returns the number of key-value pairs in the object map.
+ *
+ * @param {Object} obj The object for which to get the number of key-value
+ *     pairs.
+ * @return {number} The number of key-value pairs in the object map.
+ */
+goog.object.getCount = function(obj) {
+  var rv = 0;
+  for (var key in obj) {
+    rv++;
+  }
+  return rv;
+};
+
+
+/**
+ * Returns one key from the object map, if any exists.
+ * For map literals the returned key will be the first one in most of the
+ * browsers (a know exception is Konqueror).
+ *
+ * @param {Object} obj The object to pick a key from.
+ * @return {string|undefined} The key or undefined if the object is empty.
+ */
+goog.object.getAnyKey = function(obj) {
+  for (var key in obj) {
+    return key;
+  }
+};
+
+
+/**
+ * Returns one value from the object map, if any exists.
+ * For map literals the returned value will be the first one in most of the
+ * browsers (a know exception is Konqueror).
+ *
+ * @param {Object<K,V>} obj The object to pick a value from.
+ * @return {V|undefined} The value or undefined if the object is empty.
+ * @template K,V
+ */
+goog.object.getAnyValue = function(obj) {
+  for (var key in obj) {
+    return obj[key];
+  }
+};
+
+
+/**
+ * Whether the object/hash/map contains the given object as a value.
+ * An alias for goog.object.containsValue(obj, val).
+ *
+ * @param {Object<K,V>} obj The object in which to look for val.
+ * @param {V} val The object for which to check.
+ * @return {boolean} true if val is present.
+ * @template K,V
+ */
+goog.object.contains = function(obj, val) {
+  return goog.object.containsValue(obj, val);
+};
+
+
+/**
+ * Returns the values of the object/map/hash.
+ *
+ * @param {Object<K,V>} obj The object from which to get the values.
+ * @return {!Array<V>} The values in the object/map/hash.
+ * @template K,V
+ */
+goog.object.getValues = function(obj) {
+  var res = [];
+  var i = 0;
+  for (var key in obj) {
+    res[i++] = obj[key];
+  }
+  return res;
+};
+
+
+/**
+ * Returns the keys of the object/map/hash.
+ *
+ * @param {Object} obj The object from which to get the keys.
+ * @return {!Array<string>} Array of property keys.
+ */
+goog.object.getKeys = function(obj) {
+  var res = [];
+  var i = 0;
+  for (var key in obj) {
+    res[i++] = key;
+  }
+  return res;
+};
+
+
+/**
+ * Get a value from an object multiple levels deep.  This is useful for
+ * pulling values from deeply nested objects, such as JSON responses.
+ * Example usage: getValueByKeys(jsonObj, 'foo', 'entries', 3)
+ *
+ * @param {!Object} obj An object to get the value from.  Can be array-like.
+ * @param {...(string|number|!IArrayLike<number|string>)}
+ *     var_args A number of keys
+ *     (as strings, or numbers, for array-like objects).  Can also be
+ *     specified as a single array of keys.
+ * @return {*} The resulting value.  If, at any point, the value for a key
+ *     is undefined, returns undefined.
+ */
+goog.object.getValueByKeys = function(obj, var_args) {
+  var isArrayLike = goog.isArrayLike(var_args);
+  var keys = isArrayLike ? var_args : arguments;
+
+  // Start with the 2nd parameter for the variable parameters syntax.
+  for (var i = isArrayLike ? 0 : 1; i < keys.length; i++) {
+    obj = obj[keys[i]];
+    if (!goog.isDef(obj)) {
+      break;
+    }
+  }
+
+  return obj;
+};
+
+
+/**
+ * Whether the object/map/hash contains the given key.
+ *
+ * @param {Object} obj The object in which to look for key.
+ * @param {?} key The key for which to check.
+ * @return {boolean} true If the map contains the key.
+ */
+goog.object.containsKey = function(obj, key) {
+  return obj !== null && key in obj;
+};
+
+
+/**
+ * Whether the object/map/hash contains the given value. This is O(n).
+ *
+ * @param {Object<K,V>} obj The object in which to look for val.
+ * @param {V} val The value for which to check.
+ * @return {boolean} true If the map contains the value.
+ * @template K,V
+ */
+goog.object.containsValue = function(obj, val) {
+  for (var key in obj) {
+    if (obj[key] == val) {
+      return true;
+    }
+  }
+  return false;
+};
+
+
+/**
+ * Searches an object for an element that satisfies the given condition and
+ * returns its key.
+ * @param {Object<K,V>} obj The object to search in.
+ * @param {function(this:T,V,string,Object<K,V>):boolean} f The
+ *      function to call for every element. Takes 3 arguments (the value,
+ *     the key and the object) and should return a boolean.
+ * @param {T=} opt_this An optional "this" context for the function.
+ * @return {string|undefined} The key of an element for which the function
+ *     returns true or undefined if no such element is found.
+ * @template T,K,V
+ */
+goog.object.findKey = function(obj, f, opt_this) {
+  for (var key in obj) {
+    if (f.call(/** @type {?} */ (opt_this), obj[key], key, obj)) {
+      return key;
+    }
+  }
+  return undefined;
+};
+
+
+/**
+ * Searches an object for an element that satisfies the given condition and
+ * returns its value.
+ * @param {Object<K,V>} obj The object to search in.
+ * @param {function(this:T,V,string,Object<K,V>):boolean} f The function
+ *     to call for every element. Takes 3 arguments (the value, the key
+ *     and the object) and should return a boolean.
+ * @param {T=} opt_this An optional "this" context for the function.
+ * @return {V} The value of an element for which the function returns true or
+ *     undefined if no such element is found.
+ * @template T,K,V
+ */
+goog.object.findValue = function(obj, f, opt_this) {
+  var key = goog.object.findKey(obj, f, opt_this);
+  return key && obj[key];
+};
+
+
+/**
+ * Whether the object/map/hash is empty.
+ *
+ * @param {Object} obj The object to test.
+ * @return {boolean} true if obj is empty.
+ */
+goog.object.isEmpty = function(obj) {
+  for (var key in obj) {
+    return false;
+  }
+  return true;
+};
+
+
+/**
+ * Removes all key value pairs from the object/map/hash.
+ *
+ * @param {Object} obj The object to clear.
+ */
+goog.object.clear = function(obj) {
+  for (var i in obj) {
+    delete obj[i];
+  }
+};
+
+
+/**
+ * Removes a key-value pair based on the key.
+ *
+ * @param {Object} obj The object from which to remove the key.
+ * @param {?} key The key to remove.
+ * @return {boolean} Whether an element was removed.
+ */
+goog.object.remove = function(obj, key) {
+  var rv;
+  if (rv = key in /** @type {!Object} */ (obj)) {
+    delete obj[key];
+  }
+  return rv;
+};
+
+
+/**
+ * Adds a key-value pair to the object. Throws an exception if the key is
+ * already in use. Use set if you want to change an existing pair.
+ *
+ * @param {Object<K,V>} obj The object to which to add the key-value pair.
+ * @param {string} key The key to add.
+ * @param {V} val The value to add.
+ * @template K,V
+ */
+goog.object.add = function(obj, key, val) {
+  if (obj !== null && key in obj) {
+    throw Error('The object already contains the key "' + key + '"');
+  }
+  goog.object.set(obj, key, val);
+};
+
+
+/**
+ * Returns the value for the given key.
+ *
+ * @param {Object<K,V>} obj The object from which to get the value.
+ * @param {string} key The key for which to get the value.
+ * @param {R=} opt_val The value to return if no item is found for the given
+ *     key (default is undefined).
+ * @return {V|R|undefined} The value for the given key.
+ * @template K,V,R
+ */
+goog.object.get = function(obj, key, opt_val) {
+  if (obj !== null && key in obj) {
+    return obj[key];
+  }
+  return opt_val;
+};
+
+
+/**
+ * Adds a key-value pair to the object/map/hash.
+ *
+ * @param {Object<K,V>} obj The object to which to add the key-value pair.
+ * @param {string} key The key to add.
+ * @param {V} value The value to add.
+ * @template K,V
+ */
+goog.object.set = function(obj, key, value) {
+  obj[key] = value;
+};
+
+
+/**
+ * Adds a key-value pair to the object/map/hash if it doesn't exist yet.
+ *
+ * @param {Object<K,V>} obj The object to which to add the key-value pair.
+ * @param {string} key The key to add.
+ * @param {V} value The value to add if the key wasn't present.
+ * @return {V} The value of the entry at the end of the function.
+ * @template K,V
+ */
+goog.object.setIfUndefined = function(obj, key, value) {
+  return key in /** @type {!Object} */ (obj) ? obj[key] : (obj[key] = value);
+};
+
+
+/**
+ * Sets a key and value to an object if the key is not set. The value will be
+ * the return value of the given function. If the key already exists, the
+ * object will not be changed and the function will not be called (the function
+ * will be lazily evaluated -- only called if necessary).
+ *
+ * This function is particularly useful for use with a map used a as a cache.
+ *
+ * @param {!Object<K,V>} obj The object to which to add the key-value pair.
+ * @param {string} key The key to add.
+ * @param {function():V} f The value to add if the key wasn't present.
+ * @return {V} The value of the entry at the end of the function.
+ * @template K,V
+ */
+goog.object.setWithReturnValueIfNotSet = function(obj, key, f) {
+  if (key in obj) {
+    return obj[key];
+  }
+
+  var val = f();
+  obj[key] = val;
+  return val;
+};
+
+
+/**
+ * Compares two objects for equality using === on the values.
+ *
+ * @param {!Object<K,V>} a
+ * @param {!Object<K,V>} b
+ * @return {boolean}
+ * @template K,V
+ */
+goog.object.equals = function(a, b) {
+  for (var k in a) {
+    if (!(k in b) || a[k] !== b[k]) {
+      return false;
+    }
+  }
+  for (var k in b) {
+    if (!(k in a)) {
+      return false;
+    }
+  }
+  return true;
+};
+
+
+/**
+ * Returns a shallow clone of the object.
+ *
+ * @param {Object<K,V>} obj Object to clone.
+ * @return {!Object<K,V>} Clone of the input object.
+ * @template K,V
+ */
+goog.object.clone = function(obj) {
+  // We cannot use the prototype trick because a lot of methods depend on where
+  // the actual key is set.
+
+  var res = {};
+  for (var key in obj) {
+    res[key] = obj[key];
+  }
+  return res;
+  // We could also use goog.mixin but I wanted this to be independent from that.
+};
+
+
+/**
+ * Clones a value. The input may be an Object, Array, or basic type. Objects and
+ * arrays will be cloned recursively.
+ *
+ * WARNINGS:
+ * <code>goog.object.unsafeClone</code> does not detect reference loops. Objects
+ * that refer to themselves will cause infinite recursion.
+ *
+ * <code>goog.object.unsafeClone</code> is unaware of unique identifiers, and
+ * copies UIDs created by <code>getUid</code> into cloned results.
+ *
+ * @param {*} obj The value to clone.
+ * @return {*} A clone of the input value.
+ */
+goog.object.unsafeClone = function(obj) {
+  var type = goog.typeOf(obj);
+  if (type == 'object' || type == 'array') {
+    if (goog.isFunction(obj.clone)) {
+      return obj.clone();
+    }
+    var clone = type == 'array' ? [] : {};
+    for (var key in obj) {
+      clone[key] = goog.object.unsafeClone(obj[key]);
+    }
+    return clone;
+  }
+
+  return obj;
+};
+
+
+/**
+ * Returns a new object in which all the keys and values are interchanged
+ * (keys become values and values become keys). If multiple keys map to the
+ * same value, the chosen transposed value is implementation-dependent.
+ *
+ * @param {Object} obj The object to transpose.
+ * @return {!Object} The transposed object.
+ */
+goog.object.transpose = function(obj) {
+  var transposed = {};
+  for (var key in obj) {
+    transposed[obj[key]] = key;
+  }
+  return transposed;
+};
+
+
+/**
+ * The names of the fields that are defined on Object.prototype.
+ * @type {Array<string>}
+ * @private
+ */
+goog.object.PROTOTYPE_FIELDS_ = [
+  'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable',
+  'toLocaleString', 'toString', 'valueOf'
+];
+
+
+/**
+ * Extends an object with another object.
+ * This operates 'in-place'; it does not create a new Object.
+ *
+ * Example:
+ * var o = {};
+ * goog.object.extend(o, {a: 0, b: 1});
+ * o; // {a: 0, b: 1}
+ * goog.object.extend(o, {b: 2, c: 3});
+ * o; // {a: 0, b: 2, c: 3}
+ *
+ * @param {Object} target The object to modify. Existing properties will be
+ *     overwritten if they are also present in one of the objects in
+ *     {@code var_args}.
+ * @param {...Object} var_args The objects from which values will be copied.
+ */
+goog.object.extend = function(target, var_args) {
+  var key, source;
+  for (var i = 1; i < arguments.length; i++) {
+    source = arguments[i];
+    for (key in source) {
+      target[key] = source[key];
+    }
+
+    // For IE the for-in-loop does not contain any properties that are not
+    // enumerable on the prototype object (for example isPrototypeOf from
+    // Object.prototype) and it will also not include 'replace' on objects that
+    // extend String and change 'replace' (not that it is common for anyone to
+    // extend anything except Object).
+
+    for (var j = 0; j < goog.object.PROTOTYPE_FIELDS_.length; j++) {
+      key = goog.object.PROTOTYPE_FIELDS_[j];
+      if (Object.prototype.hasOwnProperty.call(source, key)) {
+        target[key] = source[key];
+      }
+    }
+  }
+};
+
+
+/**
+ * Creates a new object built from the key-value pairs provided as arguments.
+ * @param {...*} var_args If only one argument is provided and it is an array
+ *     then this is used as the arguments,  otherwise even arguments are used as
+ *     the property names and odd arguments are used as the property values.
+ * @return {!Object} The new object.
+ * @throws {Error} If there are uneven number of arguments or there is only one
+ *     non array argument.
+ */
+goog.object.create = function(var_args) {
+  var argLength = arguments.length;
+  if (argLength == 1 && goog.isArray(arguments[0])) {
+    return goog.object.create.apply(null, arguments[0]);
+  }
+
+  if (argLength % 2) {
+    throw Error('Uneven number of arguments');
+  }
+
+  var rv = {};
+  for (var i = 0; i < argLength; i += 2) {
+    rv[arguments[i]] = arguments[i + 1];
+  }
+  return rv;
+};
+
+
+/**
+ * Creates a new object where the property names come from the arguments but
+ * the value is always set to true
+ * @param {...*} var_args If only one argument is provided and it is an array
+ *     then this is used as the arguments,  otherwise the arguments are used
+ *     as the property names.
+ * @return {!Object} The new object.
+ */
+goog.object.createSet = function(var_args) {
+  var argLength = arguments.length;
+  if (argLength == 1 && goog.isArray(arguments[0])) {
+    return goog.object.createSet.apply(null, arguments[0]);
+  }
+
+  var rv = {};
+  for (var i = 0; i < argLength; i++) {
+    rv[arguments[i]] = true;
+  }
+  return rv;
+};
+
+
+/**
+ * Creates an immutable view of the underlying object, if the browser
+ * supports immutable objects.
+ *
+ * In default mode, writes to this view will fail silently. In strict mode,
+ * they will throw an error.
+ *
+ * @param {!Object<K,V>} obj An object.
+ * @return {!Object<K,V>} An immutable view of that object, or the
+ *     original object if this browser does not support immutables.
+ * @template K,V
+ */
+goog.object.createImmutableView = function(obj) {
+  var result = obj;
+  if (Object.isFrozen && !Object.isFrozen(obj)) {
+    result = Object.create(obj);
+    Object.freeze(result);
+  }
+  return result;
+};
+
+
+/**
+ * @param {!Object} obj An object.
+ * @return {boolean} Whether this is an immutable view of the object.
+ */
+goog.object.isImmutableView = function(obj) {
+  return !!Object.isFrozen && Object.isFrozen(obj);
+};

viz/out/goog/reflect/reflect.js

@@ -0,0 +1,138 @@
+// Copyright 2009 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Useful compiler idioms.
+ *
+ * @author johnlenz@google.com (John Lenz)
+ */
+
+goog.provide('goog.reflect');
+
+
+/**
+ * Syntax for object literal casts.
+ * @see http://go/jscompiler-renaming
+ * @see https://goo.gl/CRs09P
+ *
+ * Use this if you have an object literal whose keys need to have the same names
+ * as the properties of some class even after they are renamed by the compiler.
+ *
+ * @param {!Function} type Type to cast to.
+ * @param {Object} object Object literal to cast.
+ * @return {Object} The object literal.
+ */
+goog.reflect.object = function(type, object) {
+  return object;
+};
+
+/**
+ * Syntax for renaming property strings.
+ * @see http://go/jscompiler-renaming
+ * @see https://goo.gl/CRs09P
+ *
+ * Use this if you have an need to access a property as a string, but want
+ * to also have the property renamed by the compiler. In contrast to
+ * goog.reflect.object, this method takes an instance of an object.
+ *
+ * Properties must be simple names (not qualified names).
+ *
+ * @param {string} prop Name of the property
+ * @param {!Object} object Instance of the object whose type will be used
+ *     for renaming
+ * @return {string} The renamed property.
+ */
+goog.reflect.objectProperty = function(prop, object) {
+  return prop;
+};
+
+/**
+ * To assert to the compiler that an operation is needed when it would
+ * otherwise be stripped. For example:
+ * <code>
+ *     // Force a layout
+ *     goog.reflect.sinkValue(dialog.offsetHeight);
+ * </code>
+ * @param {T} x
+ * @return {T}
+ * @template T
+ */
+goog.reflect.sinkValue = function(x) {
+  goog.reflect.sinkValue[' '](x);
+  return x;
+};
+
+
+/**
+ * The compiler should optimize this function away iff no one ever uses
+ * goog.reflect.sinkValue.
+ */
+goog.reflect.sinkValue[' '] = goog.nullFunction;
+
+
+/**
+ * Check if a property can be accessed without throwing an exception.
+ * @param {Object} obj The owner of the property.
+ * @param {string} prop The property name.
+ * @return {boolean} Whether the property is accessible. Will also return true
+ *     if obj is null.
+ */
+goog.reflect.canAccessProperty = function(obj, prop) {
+  /** @preserveTry */
+  try {
+    goog.reflect.sinkValue(obj[prop]);
+    return true;
+  } catch (e) {
+  }
+  return false;
+};
+
+
+/**
+ * Retrieves a value from a cache given a key. The compiler provides special
+ * consideration for this call such that it is generally considered side-effect
+ * free. However, if the {@code opt_keyFn} or {@code valueFn} have side-effects
+ * then the entire call is considered to have side-effects.
+ *
+ * Conventionally storing the value on the cache would be considered a
+ * side-effect and preclude unused calls from being pruned, ie. even if
+ * the value was never used, it would still always be stored in the cache.
+ *
+ * Providing a side-effect free {@code valueFn} and {@code opt_keyFn}
+ * allows unused calls to {@code goog.cache} to be pruned.
+ *
+ * @param {!Object<K, V>} cacheObj The object that contains the cached values.
+ * @param {?} key The key to lookup in the cache. If it is not string or number
+ *     then a {@code opt_keyFn} should be provided. The key is also used as the
+ *     parameter to the {@code valueFn}.
+ * @param {!function(?):V} valueFn The value provider to use to calculate the
+ *     value to store in the cache. This function should be side-effect free
+ *     to take advantage of the optimization.
+ * @param {function(?):K=} opt_keyFn The key provider to determine the cache
+ *     map key. This should be used if the given key is not a string or number.
+ *     If not provided then the given key is used. This function should be
+ *     side-effect free to take advantage of the optimization.
+ * @return {V} The cached or calculated value.
+ * @template K
+ * @template V
+ */
+goog.reflect.cache = function(cacheObj, key, valueFn, opt_keyFn) {
+  var storedKey = opt_keyFn ? opt_keyFn(key) : key;
+
+  if (Object.prototype.hasOwnProperty.call(cacheObj, storedKey)) {
+    return cacheObj[storedKey];
+  }
+
+  return (cacheObj[storedKey] = valueFn(key));
+};

viz/out/goog/string/const.js

@@ -0,0 +1,182 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+goog.provide('goog.string.Const');
+
+goog.require('goog.asserts');
+goog.require('goog.string.TypedString');
+
+
+
+/**
+ * Wrapper for compile-time-constant strings.
+ *
+ * Const is a wrapper for strings that can only be created from program
+ * constants (i.e., string literals).  This property relies on a custom Closure
+ * compiler check that {@code goog.string.Const.from} is only invoked on
+ * compile-time-constant expressions.
+ *
+ * Const is useful in APIs whose correct and secure use requires that certain
+ * arguments are not attacker controlled: Compile-time constants are inherently
+ * under the control of the application and not under control of external
+ * attackers, and hence are safe to use in such contexts.
+ *
+ * Instances of this type must be created via its factory method
+ * {@code goog.string.Const.from} and not by invoking its constructor.  The
+ * constructor intentionally takes no parameters and the type is immutable;
+ * hence only a default instance corresponding to the empty string can be
+ * obtained via constructor invocation.
+ *
+ * @see goog.string.Const#from
+ * @constructor
+ * @final
+ * @struct
+ * @implements {goog.string.TypedString}
+ */
+goog.string.Const = function() {
+  /**
+   * The wrapped value of this Const object.  The field has a purposely ugly
+   * name to make (non-compiled) code that attempts to directly access this
+   * field stand out.
+   * @private {string}
+   */
+  this.stringConstValueWithSecurityContract__googStringSecurityPrivate_ = '';
+
+  /**
+   * A type marker used to implement additional run-time type checking.
+   * @see goog.string.Const#unwrap
+   * @const
+   * @private
+   */
+  this.STRING_CONST_TYPE_MARKER__GOOG_STRING_SECURITY_PRIVATE_ =
+      goog.string.Const.TYPE_MARKER_;
+};
+
+
+/**
+ * @override
+ * @const
+ */
+goog.string.Const.prototype.implementsGoogStringTypedString = true;
+
+
+/**
+ * Returns this Const's value a string.
+ *
+ * IMPORTANT: In code where it is security-relevant that an object's type is
+ * indeed {@code goog.string.Const}, use {@code goog.string.Const.unwrap}
+ * instead of this method.
+ *
+ * @see goog.string.Const#unwrap
+ * @override
+ */
+goog.string.Const.prototype.getTypedStringValue = function() {
+  return this.stringConstValueWithSecurityContract__googStringSecurityPrivate_;
+};
+
+
+/**
+ * Returns a debug-string representation of this value.
+ *
+ * To obtain the actual string value wrapped inside an object of this type,
+ * use {@code goog.string.Const.unwrap}.
+ *
+ * @see goog.string.Const#unwrap
+ * @override
+ */
+goog.string.Const.prototype.toString = function() {
+  return 'Const{' +
+      this.stringConstValueWithSecurityContract__googStringSecurityPrivate_ +
+      '}';
+};
+
+
+/**
+ * Performs a runtime check that the provided object is indeed an instance
+ * of {@code goog.string.Const}, and returns its value.
+ * @param {!goog.string.Const} stringConst The object to extract from.
+ * @return {string} The Const object's contained string, unless the run-time
+ *     type check fails. In that case, {@code unwrap} returns an innocuous
+ *     string, or, if assertions are enabled, throws
+ *     {@code goog.asserts.AssertionError}.
+ */
+goog.string.Const.unwrap = function(stringConst) {
+  // Perform additional run-time type-checking to ensure that stringConst is
+  // indeed an instance of the expected type.  This provides some additional
+  // protection against security bugs due to application code that disables type
+  // checks.
+  if (stringConst instanceof goog.string.Const &&
+      stringConst.constructor === goog.string.Const &&
+      stringConst.STRING_CONST_TYPE_MARKER__GOOG_STRING_SECURITY_PRIVATE_ ===
+          goog.string.Const.TYPE_MARKER_) {
+    return stringConst
+        .stringConstValueWithSecurityContract__googStringSecurityPrivate_;
+  } else {
+    goog.asserts.fail(
+        'expected object of type Const, got \'' + stringConst + '\'');
+    return 'type_error:Const';
+  }
+};
+
+
+/**
+ * Creates a Const object from a compile-time constant string.
+ *
+ * It is illegal to invoke this function on an expression whose
+ * compile-time-contant value cannot be determined by the Closure compiler.
+ *
+ * Correct invocations include,
+ * <pre>
+ *   var s = goog.string.Const.from('hello');
+ *   var t = goog.string.Const.from('hello' + 'world');
+ * </pre>
+ *
+ * In contrast, the following are illegal:
+ * <pre>
+ *   var s = goog.string.Const.from(getHello());
+ *   var t = goog.string.Const.from('hello' + world);
+ * </pre>
+ *
+ * TODO(xtof): Compile-time checks that this function is only called
+ * with compile-time constant expressions.
+ *
+ * @param {string} s A constant string from which to create a Const.
+ * @return {!goog.string.Const} A Const object initialized to stringConst.
+ */
+goog.string.Const.from = function(s) {
+  return goog.string.Const.create__googStringSecurityPrivate_(s);
+};
+
+
+/**
+ * Type marker for the Const type, used to implement additional run-time
+ * type checking.
+ * @const {!Object}
+ * @private
+ */
+goog.string.Const.TYPE_MARKER_ = {};
+
+
+/**
+ * Utility method to create Const instances.
+ * @param {string} s The string to initialize the Const object with.
+ * @return {!goog.string.Const} The initialized Const object.
+ * @private
+ */
+goog.string.Const.create__googStringSecurityPrivate_ = function(s) {
+  var stringConst = new goog.string.Const();
+  stringConst.stringConstValueWithSecurityContract__googStringSecurityPrivate_ =
+      s;
+  return stringConst;
+};

viz/out/goog/string/stringbuffer.js

@@ -0,0 +1,103 @@
+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Utility for fast string concatenation.
+ */
+
+goog.provide('goog.string.StringBuffer');
+
+
+
+/**
+ * Utility class to facilitate string concatenation.
+ *
+ * @param {*=} opt_a1 Optional first initial item to append.
+ * @param {...*} var_args Other initial items to
+ *     append, e.g., new goog.string.StringBuffer('foo', 'bar').
+ * @constructor
+ */
+goog.string.StringBuffer = function(opt_a1, var_args) {
+  if (opt_a1 != null) {
+    this.append.apply(this, arguments);
+  }
+};
+
+
+/**
+ * Internal buffer for the string to be concatenated.
+ * @type {string}
+ * @private
+ */
+goog.string.StringBuffer.prototype.buffer_ = '';
+
+
+/**
+ * Sets the contents of the string buffer object, replacing what's currently
+ * there.
+ *
+ * @param {*} s String to set.
+ */
+goog.string.StringBuffer.prototype.set = function(s) {
+  this.buffer_ = '' + s;
+};
+
+
+/**
+ * Appends one or more items to the buffer.
+ *
+ * Calling this with null, undefined, or empty arguments is an error.
+ *
+ * @param {*} a1 Required first string.
+ * @param {*=} opt_a2 Optional second string.
+ * @param {...?} var_args Other items to append,
+ *     e.g., sb.append('foo', 'bar', 'baz').
+ * @return {!goog.string.StringBuffer} This same StringBuffer object.
+ * @suppress {duplicate}
+ */
+goog.string.StringBuffer.prototype.append = function(a1, opt_a2, var_args) {
+  // Use a1 directly to avoid arguments instantiation for single-arg case.
+  this.buffer_ += String(a1);
+  if (opt_a2 != null) {  // second argument is undefined (null == undefined)
+    for (var i = 1; i < arguments.length; i++) {
+      this.buffer_ += arguments[i];
+    }
+  }
+  return this;
+};
+
+
+/**
+ * Clears the internal buffer.
+ */
+goog.string.StringBuffer.prototype.clear = function() {
+  this.buffer_ = '';
+};
+
+
+/**
+ * @return {number} the length of the current contents of the buffer.
+ */
+goog.string.StringBuffer.prototype.getLength = function() {
+  return this.buffer_.length;
+};
+
+
+/**
+ * @return {string} The concatenated string.
+ * @override
+ */
+goog.string.StringBuffer.prototype.toString = function() {
+  return this.buffer_;
+};

viz/out/goog/string/stringformat.js

@@ -0,0 +1,221 @@
+// Copyright 2008 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Implementation of sprintf-like, python-%-operator-like,
+ * .NET-String.Format-like functionality. Uses JS string's replace method to
+ * extract format specifiers and sends those specifiers to a handler function,
+ * which then, based on conversion type part of the specifier, calls the
+ * appropriate function to handle the specific conversion.
+ * For specific functionality implemented, look at formatRe below, or look
+ * at the tests.
+ */
+
+goog.provide('goog.string.format');
+
+goog.require('goog.string');
+
+
+/**
+ * Performs sprintf-like conversion, i.e. puts the values in a template.
+ * DO NOT use it instead of built-in conversions in simple cases such as
+ * 'Cost: %.2f' as it would introduce unnecessary latency opposed to
+ * 'Cost: ' + cost.toFixed(2).
+ * @param {string} formatString Template string containing % specifiers.
+ * @param {...string|number} var_args Values formatString is to be filled with.
+ * @return {string} Formatted string.
+ */
+goog.string.format = function(formatString, var_args) {
+
+  // Convert the arguments to an array (MDC recommended way).
+  var args = Array.prototype.slice.call(arguments);
+
+  // Try to get the template.
+  var template = args.shift();
+  if (typeof template == 'undefined') {
+    throw Error('[goog.string.format] Template required');
+  }
+
+  // This re is used for matching, it also defines what is supported.
+  var formatRe = /%([0\-\ \+]*)(\d+)?(\.(\d+))?([%sfdiu])/g;
+
+  /**
+   * Chooses which conversion function to call based on type conversion
+   * specifier.
+   * @param {string} match Contains the re matched string.
+   * @param {string} flags Formatting flags.
+   * @param {string} width Replacement string minimum width.
+   * @param {string} dotp Matched precision including a dot.
+   * @param {string} precision Specifies floating point precision.
+   * @param {string} type Type conversion specifier.
+   * @param {string} offset Matching location in the original string.
+   * @param {string} wholeString Has the actualString being searched.
+   * @return {string} Formatted parameter.
+   */
+  function replacerDemuxer(
+      match, flags, width, dotp, precision, type, offset, wholeString) {
+    // The % is too simple and doesn't take an argument.
+    if (type == '%') {
+      return '%';
+    }
+
+    // Try to get the actual value from parent function.
+    var value = args.shift();
+
+    // If we didn't get any arguments, fail.
+    if (typeof value == 'undefined') {
+      throw Error('[goog.string.format] Not enough arguments');
+    }
+
+    // Patch the value argument to the beginning of our type specific call.
+    arguments[0] = value;
+
+    return goog.string.format.demuxes_[type].apply(null, arguments);
+  }
+
+  return template.replace(formatRe, replacerDemuxer);
+};
+
+
+/**
+ * Contains various conversion functions (to be filled in later on).
+ * @private {!Object}
+ */
+goog.string.format.demuxes_ = {};
+
+
+/**
+ * Processes %s conversion specifier.
+ * @param {string} value Contains the formatRe matched string.
+ * @param {string} flags Formatting flags.
+ * @param {string} width Replacement string minimum width.
+ * @param {string} dotp Matched precision including a dot.
+ * @param {string} precision Specifies floating point precision.
+ * @param {string} type Type conversion specifier.
+ * @param {string} offset Matching location in the original string.
+ * @param {string} wholeString Has the actualString being searched.
+ * @return {string} Replacement string.
+ */
+goog.string.format.demuxes_['s'] = function(
+    value, flags, width, dotp, precision, type, offset, wholeString) {
+  var replacement = value;
+  // If no padding is necessary we're done.
+  // The check for '' is necessary because Firefox incorrectly provides the
+  // empty string instead of undefined for non-participating capture groups,
+  // and isNaN('') == false.
+  if (isNaN(width) || width == '' || replacement.length >= Number(width)) {
+    return replacement;
+  }
+
+  // Otherwise we should find out where to put spaces.
+  if (flags.indexOf('-', 0) > -1) {
+    replacement = replacement +
+        goog.string.repeat(' ', Number(width) - replacement.length);
+  } else {
+    replacement = goog.string.repeat(' ', Number(width) - replacement.length) +
+        replacement;
+  }
+  return replacement;
+};
+
+
+/**
+ * Processes %f conversion specifier.
+ * @param {string} value Contains the formatRe matched string.
+ * @param {string} flags Formatting flags.
+ * @param {string} width Replacement string minimum width.
+ * @param {string} dotp Matched precision including a dot.
+ * @param {string} precision Specifies floating point precision.
+ * @param {string} type Type conversion specifier.
+ * @param {string} offset Matching location in the original string.
+ * @param {string} wholeString Has the actualString being searched.
+ * @return {string} Replacement string.
+ */
+goog.string.format.demuxes_['f'] = function(
+    value, flags, width, dotp, precision, type, offset, wholeString) {
+
+  var replacement = value.toString();
+
+  // The check for '' is necessary because Firefox incorrectly provides the
+  // empty string instead of undefined for non-participating capture groups,
+  // and isNaN('') == false.
+  if (!(isNaN(precision) || precision == '')) {
+    replacement = parseFloat(value).toFixed(precision);
+  }
+
+  // Generates sign string that will be attached to the replacement.
+  var sign;
+  if (Number(value) < 0) {
+    sign = '-';
+  } else if (flags.indexOf('+') >= 0) {
+    sign = '+';
+  } else if (flags.indexOf(' ') >= 0) {
+    sign = ' ';
+  } else {
+    sign = '';
+  }
+
+  if (Number(value) >= 0) {
+    replacement = sign + replacement;
+  }
+
+  // If no padding is necessary we're done.
+  if (isNaN(width) || replacement.length >= Number(width)) {
+    return replacement;
+  }
+
+  // We need a clean signless replacement to start with
+  replacement = isNaN(precision) ? Math.abs(Number(value)).toString() :
+                                   Math.abs(Number(value)).toFixed(precision);
+
+  var padCount = Number(width) - replacement.length - sign.length;
+
+  // Find out which side to pad, and if it's left side, then which character to
+  // pad, and set the sign on the left and padding in the middle.
+  if (flags.indexOf('-', 0) >= 0) {
+    replacement = sign + replacement + goog.string.repeat(' ', padCount);
+  } else {
+    // Decides which character to pad.
+    var paddingChar = (flags.indexOf('0', 0) >= 0) ? '0' : ' ';
+    replacement =
+        sign + goog.string.repeat(paddingChar, padCount) + replacement;
+  }
+
+  return replacement;
+};
+
+
+/**
+ * Processes %d conversion specifier.
+ * @param {string} value Contains the formatRe matched string.
+ * @param {string} flags Formatting flags.
+ * @param {string} width Replacement string minimum width.
+ * @param {string} dotp Matched precision including a dot.
+ * @param {string} precision Specifies floating point precision.
+ * @param {string} type Type conversion specifier.
+ * @param {string} offset Matching location in the original string.
+ * @param {string} wholeString Has the actualString being searched.
+ * @return {string} Replacement string.
+ */
+goog.string.format.demuxes_['d'] = function(
+    value, flags, width, dotp, precision, type, offset, wholeString) {
+  return goog.string.format.demuxes_['f'](
+      parseInt(value, 10) /* value */, flags, width, dotp, 0 /* precision */,
+      type, offset, wholeString);
+};
+
+
+// These are additional aliases, for integer conversion.
+goog.string.format.demuxes_['i'] = goog.string.format.demuxes_['d'];
+goog.string.format.demuxes_['u'] = goog.string.format.demuxes_['d'];

viz/out/goog/string/typedstring.js

@@ -0,0 +1,48 @@
+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+goog.provide('goog.string.TypedString');
+
+
+
+/**
+ * Wrapper for strings that conform to a data type or language.
+ *
+ * Implementations of this interface are wrappers for strings, and typically
+ * associate a type contract with the wrapped string.  Concrete implementations
+ * of this interface may choose to implement additional run-time type checking,
+ * see for example {@code goog.html.SafeHtml}. If available, client code that
+ * needs to ensure type membership of an object should use the type's function
+ * to assert type membership, such as {@code goog.html.SafeHtml.unwrap}.
+ * @interface
+ */
+goog.string.TypedString = function() {};
+
+
+/**
+ * Interface marker of the TypedString interface.
+ *
+ * This property can be used to determine at runtime whether or not an object
+ * implements this interface.  All implementations of this interface set this
+ * property to {@code true}.
+ * @type {boolean}
+ */
+goog.string.TypedString.prototype.implementsGoogStringTypedString;
+
+
+/**
+ * Retrieves this wrapped string's value.
+ * @return {!string} The wrapped string's value.
+ */
+goog.string.TypedString.prototype.getTypedStringValue;

viz/out/goog/useragent/useragent.js

@@ -0,0 +1,568 @@
+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Rendering engine detection.
+ * @see <a href="http://www.useragentstring.com/">User agent strings</a>
+ * For information on the browser brand (such as Safari versus Chrome), see
+ * goog.userAgent.product.
+ * @author arv@google.com (Erik Arvidsson)
+ * @see ../demos/useragent.html
+ */
+
+goog.provide('goog.userAgent');
+
+goog.require('goog.labs.userAgent.browser');
+goog.require('goog.labs.userAgent.engine');
+goog.require('goog.labs.userAgent.platform');
+goog.require('goog.labs.userAgent.util');
+goog.require('goog.string');
+
+
+/**
+ * @define {boolean} Whether we know at compile-time that the browser is IE.
+ */
+goog.define('goog.userAgent.ASSUME_IE', false);
+
+
+/**
+ * @define {boolean} Whether we know at compile-time that the browser is EDGE.
+ */
+goog.define('goog.userAgent.ASSUME_EDGE', false);
+
+
+/**
+ * @define {boolean} Whether we know at compile-time that the browser is GECKO.
+ */
+goog.define('goog.userAgent.ASSUME_GECKO', false);
+
+
+/**
+ * @define {boolean} Whether we know at compile-time that the browser is WEBKIT.
+ */
+goog.define('goog.userAgent.ASSUME_WEBKIT', false);
+
+
+/**
+ * @define {boolean} Whether we know at compile-time that the browser is a
+ *     mobile device running WebKit e.g. iPhone or Android.
+ */
+goog.define('goog.userAgent.ASSUME_MOBILE_WEBKIT', false);
+
+
+/**
+ * @define {boolean} Whether we know at compile-time that the browser is OPERA.
+ */
+goog.define('goog.userAgent.ASSUME_OPERA', false);
+
+
+/**
+ * @define {boolean} Whether the
+ *     {@code goog.userAgent.isVersionOrHigher}
+ *     function will return true for any version.
+ */
+goog.define('goog.userAgent.ASSUME_ANY_VERSION', false);
+
+
+/**
+ * Whether we know the browser engine at compile-time.
+ * @type {boolean}
+ * @private
+ */
+goog.userAgent.BROWSER_KNOWN_ = goog.userAgent.ASSUME_IE ||
+    goog.userAgent.ASSUME_EDGE || goog.userAgent.ASSUME_GECKO ||
+    goog.userAgent.ASSUME_MOBILE_WEBKIT || goog.userAgent.ASSUME_WEBKIT ||
+    goog.userAgent.ASSUME_OPERA;
+
+
+/**
+ * Returns the userAgent string for the current browser.
+ *
+ * @return {string} The userAgent string.
+ */
+goog.userAgent.getUserAgentString = function() {
+  return goog.labs.userAgent.util.getUserAgent();
+};
+
+
+/**
+ * TODO(nnaze): Change type to "Navigator" and update compilation targets.
+ * @return {Object} The native navigator object.
+ */
+goog.userAgent.getNavigator = function() {
+  // Need a local navigator reference instead of using the global one,
+  // to avoid the rare case where they reference different objects.
+  // (in a WorkerPool, for example).
+  return goog.global['navigator'] || null;
+};
+
+
+/**
+ * Whether the user agent is Opera.
+ * @type {boolean}
+ */
+goog.userAgent.OPERA = goog.userAgent.BROWSER_KNOWN_ ?
+    goog.userAgent.ASSUME_OPERA :
+    goog.labs.userAgent.browser.isOpera();
+
+
+/**
+ * Whether the user agent is Internet Explorer.
+ * @type {boolean}
+ */
+goog.userAgent.IE = goog.userAgent.BROWSER_KNOWN_ ?
+    goog.userAgent.ASSUME_IE :
+    goog.labs.userAgent.browser.isIE();
+
+
+/**
+ * Whether the user agent is Microsoft Edge.
+ * @type {boolean}
+ */
+goog.userAgent.EDGE = goog.userAgent.BROWSER_KNOWN_ ?
+    goog.userAgent.ASSUME_EDGE :
+    goog.labs.userAgent.engine.isEdge();
+
+
+/**
+ * Whether the user agent is MS Internet Explorer or MS Edge.
+ * @type {boolean}
+ */
+goog.userAgent.EDGE_OR_IE = goog.userAgent.EDGE || goog.userAgent.IE;
+
+
+/**
+ * Whether the user agent is Gecko. Gecko is the rendering engine used by
+ * Mozilla, Firefox, and others.
+ * @type {boolean}
+ */
+goog.userAgent.GECKO = goog.userAgent.BROWSER_KNOWN_ ?
+    goog.userAgent.ASSUME_GECKO :
+    goog.labs.userAgent.engine.isGecko();
+
+
+/**
+ * Whether the user agent is WebKit. WebKit is the rendering engine that
+ * Safari, Android and others use.
+ * @type {boolean}
+ */
+goog.userAgent.WEBKIT = goog.userAgent.BROWSER_KNOWN_ ?
+    goog.userAgent.ASSUME_WEBKIT || goog.userAgent.ASSUME_MOBILE_WEBKIT :
+    goog.labs.userAgent.engine.isWebKit();
+
+
+/**
+ * Whether the user agent is running on a mobile device.
+ *
+ * This is a separate function so that the logic can be tested.
+ *
+ * TODO(nnaze): Investigate swapping in goog.labs.userAgent.device.isMobile().
+ *
+ * @return {boolean} Whether the user agent is running on a mobile device.
+ * @private
+ */
+goog.userAgent.isMobile_ = function() {
+  return goog.userAgent.WEBKIT &&
+      goog.labs.userAgent.util.matchUserAgent('Mobile');
+};
+
+
+/**
+ * Whether the user agent is running on a mobile device.
+ *
+ * TODO(nnaze): Consider deprecating MOBILE when labs.userAgent
+ *   is promoted as the gecko/webkit logic is likely inaccurate.
+ *
+ * @type {boolean}
+ */
+goog.userAgent.MOBILE =
+    goog.userAgent.ASSUME_MOBILE_WEBKIT || goog.userAgent.isMobile_();
+
+
+/**
+ * Used while transitioning code to use WEBKIT instead.
+ * @type {boolean}
+ * @deprecated Use {@link goog.userAgent.product.SAFARI} instead.
+ * TODO(nicksantos): Delete this from goog.userAgent.
+ */
+goog.userAgent.SAFARI = goog.userAgent.WEBKIT;
+
+
+/**
+ * @return {string} the platform (operating system) the user agent is running
+ *     on. Default to empty string because navigator.platform may not be defined
+ *     (on Rhino, for example).
+ * @private
+ */
+goog.userAgent.determinePlatform_ = function() {
+  var navigator = goog.userAgent.getNavigator();
+  return navigator && navigator.platform || '';
+};
+
+
+/**
+ * The platform (operating system) the user agent is running on. Default to
+ * empty string because navigator.platform may not be defined (on Rhino, for
+ * example).
+ * @type {string}
+ */
+goog.userAgent.PLATFORM = goog.userAgent.determinePlatform_();
+
+
+/**
+ * @define {boolean} Whether the user agent is running on a Macintosh operating
+ *     system.
+ */
+goog.define('goog.userAgent.ASSUME_MAC', false);
+
+
+/**
+ * @define {boolean} Whether the user agent is running on a Windows operating
+ *     system.
+ */
+goog.define('goog.userAgent.ASSUME_WINDOWS', false);
+
+
+/**
+ * @define {boolean} Whether the user agent is running on a Linux operating
+ *     system.
+ */
+goog.define('goog.userAgent.ASSUME_LINUX', false);
+
+
+/**
+ * @define {boolean} Whether the user agent is running on a X11 windowing
+ *     system.
+ */
+goog.define('goog.userAgent.ASSUME_X11', false);
+
+
+/**
+ * @define {boolean} Whether the user agent is running on Android.
+ */
+goog.define('goog.userAgent.ASSUME_ANDROID', false);
+
+
+/**
+ * @define {boolean} Whether the user agent is running on an iPhone.
+ */
+goog.define('goog.userAgent.ASSUME_IPHONE', false);
+
+
+/**
+ * @define {boolean} Whether the user agent is running on an iPad.
+ */
+goog.define('goog.userAgent.ASSUME_IPAD', false);
+
+
+/**
+ * @define {boolean} Whether the user agent is running on an iPod.
+ */
+goog.define('goog.userAgent.ASSUME_IPOD', false);
+
+
+/**
+ * @type {boolean}
+ * @private
+ */
+goog.userAgent.PLATFORM_KNOWN_ = goog.userAgent.ASSUME_MAC ||
+    goog.userAgent.ASSUME_WINDOWS || goog.userAgent.ASSUME_LINUX ||
+    goog.userAgent.ASSUME_X11 || goog.userAgent.ASSUME_ANDROID ||
+    goog.userAgent.ASSUME_IPHONE || goog.userAgent.ASSUME_IPAD ||
+    goog.userAgent.ASSUME_IPOD;
+
+
+/**
+ * Whether the user agent is running on a Macintosh operating system.
+ * @type {boolean}
+ */
+goog.userAgent.MAC = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_MAC :
+    goog.labs.userAgent.platform.isMacintosh();
+
+
+/**
+ * Whether the user agent is running on a Windows operating system.
+ * @type {boolean}
+ */
+goog.userAgent.WINDOWS = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_WINDOWS :
+    goog.labs.userAgent.platform.isWindows();
+
+
+/**
+ * Whether the user agent is Linux per the legacy behavior of
+ * goog.userAgent.LINUX, which considered ChromeOS to also be
+ * Linux.
+ * @return {boolean}
+ * @private
+ */
+goog.userAgent.isLegacyLinux_ = function() {
+  return goog.labs.userAgent.platform.isLinux() ||
+      goog.labs.userAgent.platform.isChromeOS();
+};
+
+
+/**
+ * Whether the user agent is running on a Linux operating system.
+ *
+ * Note that goog.userAgent.LINUX considers ChromeOS to be Linux,
+ * while goog.labs.userAgent.platform considers ChromeOS and
+ * Linux to be different OSes.
+ *
+ * @type {boolean}
+ */
+goog.userAgent.LINUX = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_LINUX :
+    goog.userAgent.isLegacyLinux_();
+
+
+/**
+ * @return {boolean} Whether the user agent is an X11 windowing system.
+ * @private
+ */
+goog.userAgent.isX11_ = function() {
+  var navigator = goog.userAgent.getNavigator();
+  return !!navigator &&
+      goog.string.contains(navigator['appVersion'] || '', 'X11');
+};
+
+
+/**
+ * Whether the user agent is running on a X11 windowing system.
+ * @type {boolean}
+ */
+goog.userAgent.X11 = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_X11 :
+    goog.userAgent.isX11_();
+
+
+/**
+ * Whether the user agent is running on Android.
+ * @type {boolean}
+ */
+goog.userAgent.ANDROID = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_ANDROID :
+    goog.labs.userAgent.platform.isAndroid();
+
+
+/**
+ * Whether the user agent is running on an iPhone.
+ * @type {boolean}
+ */
+goog.userAgent.IPHONE = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_IPHONE :
+    goog.labs.userAgent.platform.isIphone();
+
+
+/**
+ * Whether the user agent is running on an iPad.
+ * @type {boolean}
+ */
+goog.userAgent.IPAD = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_IPAD :
+    goog.labs.userAgent.platform.isIpad();
+
+
+/**
+ * Whether the user agent is running on an iPod.
+ * @type {boolean}
+ */
+goog.userAgent.IPOD = goog.userAgent.PLATFORM_KNOWN_ ?
+    goog.userAgent.ASSUME_IPOD :
+    goog.labs.userAgent.platform.isIpod();
+
+
+/**
+ * @return {string} The string that describes the version number of the user
+ *     agent.
+ * @private
+ */
+goog.userAgent.determineVersion_ = function() {
+  // All browsers have different ways to detect the version and they all have
+  // different naming schemes.
+  // version is a string rather than a number because it may contain 'b', 'a',
+  // and so on.
+  var version = '';
+  var arr = goog.userAgent.getVersionRegexResult_();
+  if (arr) {
+    version = arr ? arr[1] : '';
+  }
+
+  if (goog.userAgent.IE) {
+    // IE9 can be in document mode 9 but be reporting an inconsistent user agent
+    // version.  If it is identifying as a version lower than 9 we take the
+    // documentMode as the version instead.  IE8 has similar behavior.
+    // It is recommended to set the X-UA-Compatible header to ensure that IE9
+    // uses documentMode 9.
+    var docMode = goog.userAgent.getDocumentMode_();
+    if (docMode != null && docMode > parseFloat(version)) {
+      return String(docMode);
+    }
+  }
+
+  return version;
+};
+
+
+/**
+ * @return {?Array|undefined} The version regex matches from parsing the user
+ *     agent string. These regex statements must be executed inline so they can
+ *     be compiled out by the closure compiler with the rest of the useragent
+ *     detection logic when ASSUME_* is specified.
+ * @private
+ */
+goog.userAgent.getVersionRegexResult_ = function() {
+  var userAgent = goog.userAgent.getUserAgentString();
+  if (goog.userAgent.GECKO) {
+    return /rv\:([^\);]+)(\)|;)/.exec(userAgent);
+  }
+  if (goog.userAgent.EDGE) {
+    return /Edge\/([\d\.]+)/.exec(userAgent);
+  }
+  if (goog.userAgent.IE) {
+    return /\b(?:MSIE|rv)[: ]([^\);]+)(\)|;)/.exec(userAgent);
+  }
+  if (goog.userAgent.WEBKIT) {
+    // WebKit/125.4
+    return /WebKit\/(\S+)/.exec(userAgent);
+  }
+  if (goog.userAgent.OPERA) {
+    // If none of the above browsers were detected but the browser is Opera, the
+    // only string that is of interest is 'Version/<number>'.
+    return /(?:Version)[ \/]?(\S+)/.exec(userAgent);
+  }
+  return undefined;
+};
+
+
+/**
+ * @return {number|undefined} Returns the document mode (for testing).
+ * @private
+ */
+goog.userAgent.getDocumentMode_ = function() {
+  // NOTE(user): goog.userAgent may be used in context where there is no DOM.
+  var doc = goog.global['document'];
+  return doc ? doc['documentMode'] : undefined;
+};
+
+
+/**
+ * The version of the user agent. This is a string because it might contain
+ * 'b' (as in beta) as well as multiple dots.
+ * @type {string}
+ */
+goog.userAgent.VERSION = goog.userAgent.determineVersion_();
+
+
+/**
+ * Compares two version numbers.
+ *
+ * @param {string} v1 Version of first item.
+ * @param {string} v2 Version of second item.
+ *
+ * @return {number}  1 if first argument is higher
+ *                   0 if arguments are equal
+ *                  -1 if second argument is higher.
+ * @deprecated Use goog.string.compareVersions.
+ */
+goog.userAgent.compare = function(v1, v2) {
+  return goog.string.compareVersions(v1, v2);
+};
+
+
+/**
+ * Cache for {@link goog.userAgent.isVersionOrHigher}.
+ * Calls to compareVersions are surprisingly expensive and, as a browser's
+ * version number is unlikely to change during a session, we cache the results.
+ * @const
+ * @private
+ */
+goog.userAgent.isVersionOrHigherCache_ = {};
+
+
+/**
+ * Whether the user agent version is higher or the same as the given version.
+ * NOTE: When checking the version numbers for Firefox and Safari, be sure to
+ * use the engine's version, not the browser's version number.  For example,
+ * Firefox 3.0 corresponds to Gecko 1.9 and Safari 3.0 to Webkit 522.11.
+ * Opera and Internet Explorer versions match the product release number.<br>
+ * @see <a href="http://en.wikipedia.org/wiki/Safari_version_history">
+ *     Webkit</a>
+ * @see <a href="http://en.wikipedia.org/wiki/Gecko_engine">Gecko</a>
+ *
+ * @param {string|number} version The version to check.
+ * @return {boolean} Whether the user agent version is higher or the same as
+ *     the given version.
+ */
+goog.userAgent.isVersionOrHigher = function(version) {
+  return goog.userAgent.ASSUME_ANY_VERSION ||
+      goog.userAgent.isVersionOrHigherCache_[version] ||
+      (goog.userAgent.isVersionOrHigherCache_[version] =
+           goog.string.compareVersions(goog.userAgent.VERSION, version) >= 0);
+};
+
+
+/**
+ * Deprecated alias to {@code goog.userAgent.isVersionOrHigher}.
+ * @param {string|number} version The version to check.
+ * @return {boolean} Whether the user agent version is higher or the same as
+ *     the given version.
+ * @deprecated Use goog.userAgent.isVersionOrHigher().
+ */
+goog.userAgent.isVersion = goog.userAgent.isVersionOrHigher;
+
+
+/**
+ * Whether the IE effective document mode is higher or the same as the given
+ * document mode version.
+ * NOTE: Only for IE, return false for another browser.
+ *
+ * @param {number} documentMode The document mode version to check.
+ * @return {boolean} Whether the IE effective document mode is higher or the
+ *     same as the given version.
+ */
+goog.userAgent.isDocumentModeOrHigher = function(documentMode) {
+  return Number(goog.userAgent.DOCUMENT_MODE) >= documentMode;
+};
+
+
+/**
+ * Deprecated alias to {@code goog.userAgent.isDocumentModeOrHigher}.
+ * @param {number} version The version to check.
+ * @return {boolean} Whether the IE effective document mode is higher or the
+ *      same as the given version.
+ * @deprecated Use goog.userAgent.isDocumentModeOrHigher().
+ */
+goog.userAgent.isDocumentMode = goog.userAgent.isDocumentModeOrHigher;
+
+
+/**
+ * For IE version < 7, documentMode is undefined, so attempt to use the
+ * CSS1Compat property to see if we are in standards mode. If we are in
+ * standards mode, treat the browser version as the document mode. Otherwise,
+ * IE is emulating version 5.
+ * @type {number|undefined}
+ * @const
+ */
+goog.userAgent.DOCUMENT_MODE = (function() {
+  var doc = goog.global['document'];
+  var mode = goog.userAgent.getDocumentMode_();
+  if (!doc || !goog.userAgent.IE) {
+    return undefined;
+  }
+  return mode || (doc['compatMode'] == 'CSS1Compat' ?
+                      parseInt(goog.userAgent.VERSION, 10) :
+                      5);
+})();

viz/out/quil/middleware.cljc

@@ -0,0 +1,144 @@
+(ns ^{:doc "Quil middleware."}
+  quil.middleware
+  (:require [quil.middlewares.fun-mode :as fun-mode]
+            #?(:clj [quil.middlewares.pause-on-error :as pause-on-error])
+            [quil.middlewares.navigation-3d :as navigation-3d]
+            [quil.middlewares.navigation-2d :as navigation-2d]
+            ))
+
+(defn ^{:requires-bindings false
+        :category "Middleware"
+        :subcategory nil
+        :ns "quil.middleware"
+        :added "2.1.0"}
+  fun-mode
+  "Introduces function mode. Adds 'update' function which takes current
+  state and returns new state. Makes all other functions (setup, draw,
+  mouse-click, etc) state-aware. See wiki for more details."
+  [options]
+  (fun-mode/fun-mode options))
+
+#?(:clj
+(defn ^{:requires-bindings false
+        :category "Middleware"
+        :subcategory nil
+        :ns "quil.middleware"
+        :added "2.2.0"}
+  pause-on-error
+  "Pauses sketch if any of user-provided handlers throws error.
+  It allows to fix the error on the fly and continue sketch.
+  May be good alternative to default '500ms pause if exception'
+  behaviour."
+  [options]
+  (pause-on-error/pause-on-error options)))
+
+(defn ^{:requires-bindings false
+        :category "Middleware"
+        :subcategory nil
+        :ns "quil.middleware"
+        :added "2.2.0"}
+  navigation-3d
+  "Enables navigation in 3D space. Similar to how it is done in
+  shooters: WASD navigation, space is go up, drag mouse to look around.
+  This middleware requires fun-mode.
+
+
+  Navigation
+
+  * Drag mouse to look around. You can change settings to bind
+    mouse-moved instead of mouse-dragged to look around. See
+    customization info below.
+
+  * Keyboard:
+    * w - go forward
+    * s - go backward
+    * a - strafe left
+    * d - strafe right
+    * space - go up
+    * z - go down, can't bind to ctrl, limitation of Processing
+
+
+  Customization
+
+  You can customize this middleware by providing map as
+  :navigation-3d option in defsketch/sketch. Map can have following
+  optional keys:
+
+  :position - vector of 3 numbers, initial camera position. Default
+              is the same as in 'camera' function.
+
+  :straight - vector of 3 numbers, direction you'll be looking at.
+              Default is [0 0 -1] (looking down).
+
+  :up - vector of 3 numbers, 'up' direction. Default is [0 1 0].
+
+  :pixels-in-360 - number, mouse sensitivity. Defines how many pixels
+                   you need to move/drag you mouse to rotate 360 degrees.
+                   The less the number the more sensitive is mouse.
+                   Default is 1000.
+
+  :step-size - number, number of pixels you move on each key event (wasd).
+               Default is 20.
+
+  :rotate-on - keyword, either :mouse-dragged or :mouse-moved. Specifies
+               on which mouse event camera should rotate. Default is
+               :mouse-dragged.
+
+
+  Accessing position information from sketch
+
+  navigation-3d uses fun-mode under the hood  so all position-related
+  information is stored in the state map. It means that you can access in
+  draw/update/any handler and modify it if you need to. Position
+  information is a map which is stored under :navigation-3d key in the
+  state map. Position consists of 3 values: :position, :straight and :up.
+  See \"Customization\" section above for more details.
+
+  Usage example:
+
+  (q/defsketch my-sketch
+    ...
+    :middleware [m/fun-mode m/navigation-3d])
+
+  See wiki article for more(?) details:
+  https://github.com/quil/quil/wiki/Navigation-3D"
+  [options]
+  (navigation-3d/navigation-3d options))
+
+(defn ^{:requires-bindings false
+        :category "Middleware"
+        :subcategory nil
+        :ns "quil.middleware"
+        :added "2.2.6"}
+  navigation-2d
+  "Enables navigation over 2D sketch. Drag mouse to change the center of the
+  sketch and mouse wheel controls zoom. This middleware requires fun-mode.
+
+  Customization
+
+  You can customize this middleware by providing map as
+  :navigation-2d option in defsketch/sketch. Map can have following
+  optional keys:
+
+  :position - vector of 2 numbers, x and y - center of the screen.
+              Default is width/2, height/2.
+
+  :zoom - number indicating current zoom level. Default is 1.
+
+  Accessing position information from sketch
+
+  navigation-2d uses fun-mode under the hood so all position-related
+  information is stored in the state map. It means that you can access in
+  draw/update/any handler and modify it if you need to. Position
+  information is a map which is stored under :navigation-2d key in the
+  state map. Position consists of 2 values: :position and :zoom.
+  See \"Customization\" section above for more details.
+
+  Usage example:
+
+  (q/defsketch my-sketch
+    ...
+    :middleware [m/fun-mode m/navigation-2d])
+"
+  [options]
+  (navigation-2d/navigation-2d options))

viz/out/quil/middleware.js

@@ -0,0 +1,118 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('quil.middleware');
+goog.require('cljs.core');
+goog.require('quil.middlewares.fun_mode');
+goog.require('quil.middlewares.navigation_3d');
+goog.require('quil.middlewares.navigation_2d');
+/**
+ * Introduces function mode. Adds 'update' function which takes current
+ *   state and returns new state. Makes all other functions (setup, draw,
+ *   mouse-click, etc) state-aware. See wiki for more details.
+ */
+quil.middleware.fun_mode = (function quil$middleware$fun_mode(options){
+return quil.middlewares.fun_mode.fun_mode.call(null,options);
+});
+/**
+ * Enables navigation in 3D space. Similar to how it is done in
+ *   shooters: WASD navigation, space is go up, drag mouse to look around.
+ *   This middleware requires fun-mode.
+ * 
+ * 
+ *   Navigation
+ * 
+ *   * Drag mouse to look around. You can change settings to bind
+ *  mouse-moved instead of mouse-dragged to look around. See
+ *  customization info below.
+ * 
+ *   * Keyboard:
+ *  * w - go forward
+ *  * s - go backward
+ *  * a - strafe left
+ *  * d - strafe right
+ *  * space - go up
+ *  * z - go down, can't bind to ctrl, limitation of Processing
+ * 
+ * 
+ *   Customization
+ * 
+ *   You can customize this middleware by providing map as
+ *   :navigation-3d option in defsketch/sketch. Map can have following
+ *   optional keys:
+ * 
+ *   :position - vector of 3 numbers, initial camera position. Default
+ *            is the same as in 'camera' function.
+ * 
+ *   :straight - vector of 3 numbers, direction you'll be looking at.
+ *            Default is [0 0 -1] (looking down).
+ * 
+ *   :up - vector of 3 numbers, 'up' direction. Default is [0 1 0].
+ * 
+ *   :pixels-in-360 - number, mouse sensitivity. Defines how many pixels
+ *                 you need to move/drag you mouse to rotate 360 degrees.
+ *                 The less the number the more sensitive is mouse.
+ *                 Default is 1000.
+ * 
+ *   :step-size - number, number of pixels you move on each key event (wasd).
+ *             Default is 20.
+ * 
+ *   :rotate-on - keyword, either :mouse-dragged or :mouse-moved. Specifies
+ *             on which mouse event camera should rotate. Default is
+ *             :mouse-dragged.
+ * 
+ * 
+ *   Accessing position information from sketch
+ * 
+ *   navigation-3d uses fun-mode under the hood  so all position-related
+ *   information is stored in the state map. It means that you can access in
+ *   draw/update/any handler and modify it if you need to. Position
+ *   information is a map which is stored under :navigation-3d key in the
+ *   state map. Position consists of 3 values: :position, :straight and :up.
+ *   See "Customization" section above for more details.
+ * 
+ *   Usage example:
+ * 
+ *   (q/defsketch my-sketch
+ *  ...
+ *  :middleware [m/fun-mode m/navigation-3d])
+ * 
+ *   See wiki article for more(?) details:
+ *   https://github.com/quil/quil/wiki/Navigation-3D
+ */
+quil.middleware.navigation_3d = (function quil$middleware$navigation_3d(options){
+return quil.middlewares.navigation_3d.navigation_3d.call(null,options);
+});
+/**
+ * Enables navigation over 2D sketch. Drag mouse to change the center of the
+ *   sketch and mouse wheel controls zoom. This middleware requires fun-mode.
+ * 
+ *   Customization
+ * 
+ *   You can customize this middleware by providing map as
+ *   :navigation-2d option in defsketch/sketch. Map can have following
+ *   optional keys:
+ * 
+ *   :position - vector of 2 numbers, x and y - center of the screen.
+ *            Default is width/2, height/2.
+ * 
+ *   :zoom - number indicating current zoom level. Default is 1.
+ * 
+ *   Accessing position information from sketch
+ * 
+ *   navigation-2d uses fun-mode under the hood so all position-related
+ *   information is stored in the state map. It means that you can access in
+ *   draw/update/any handler and modify it if you need to. Position
+ *   information is a map which is stored under :navigation-2d key in the
+ *   state map. Position consists of 2 values: :position and :zoom.
+ *   See "Customization" section above for more details.
+ * 
+ *   Usage example:
+ * 
+ *   (q/defsketch my-sketch
+ *  ...
+ *  :middleware [m/fun-mode m/navigation-2d])
+ */
+quil.middleware.navigation_2d = (function quil$middleware$navigation_2d(options){
+return quil.middlewares.navigation_2d.navigation_2d.call(null,options);
+});
+
+//# sourceMappingURL=middleware.js.map

viz/out/quil/middleware.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"\/home\/mediocregopher\/src\/viz\/out\/quil\/middleware.js","sources":["middleware.cljc"],"lineCount":118,"mappings":";AAAA;;;;;AAQA;;;;;2BAAA,3BAKEA,8DAICC;AATH,AAUE,OAACC,6CAAkBD;;AAgBrB;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;gCAAA,hCAKEE,wEAiECF;AAtEH,AAuEE,OAACG,uDAA4BH;;AAE\/B;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;gCAAA,hCAKEI,wEA8BCJ;AAnCH,AAoCE,OAACK,uDAA4BL","names":["quil.middleware\/fun-mode","options","quil.middlewares.fun-mode\/fun-mode","quil.middleware\/navigation-3d","quil.middlewares.navigation-3d\/navigation-3d","quil.middleware\/navigation-2d","quil.middlewares.navigation-2d\/navigation-2d"]}

viz/out/quil/middlewares/deprecated_options.cljc

@@ -0,0 +1,26 @@
+(ns quil.middlewares.deprecated-options)
+
+(def ^:private deprecated
+  {:decor ["2.0" "Try :features [:present] for similar effect"]
+   :target ["2.0" "Use :features [:keep-on-top] instead."]
+   :safe-draw-fn ["2.0" "Use :features [:no-safe-fns] instead."]})
+
+(defn- check-features-vector [features]
+  (let [features (set features)]
+    (when (features :no-safe-draw)
+      (println "Feature :no-safe-draw was renamed to :no-safe-fns in Quil 2.1."
+               "Use :feature [:no-safe-fns] now."))
+    (disj features :no-safe-draw)))
+
+(defn deprecated-options
+  "Checks if options map contains deprected options and removes them.
+  Prints messages how to fix deprecated functions."
+  [options]
+  (let [options (update-in options [:features] check-features-vector)]
+    (->> (for [[name value] options]
+           (if-let [[version message] (deprecated name)]
+             (do (println name "option was removed in Quil" version "." message)
+                 nil)
+             [name value]))
+         (remove nil?)
+         (into {}))))

viz/out/quil/middlewares/deprecated_options.cljc.cache.edn

@@ -0,0 +1 @@
+{:rename-macros {}, :renames {}, :use-macros {}, :excludes #{}, :name quil.middlewares.deprecated-options, :imports nil, :requires nil, :uses nil, :defs {deprecated {:name quil.middlewares.deprecated-options/deprecated, :file "out/quil/middlewares/deprecated_options.cljc", :line 3, :column 1, :end-line 3, :end-column 26, :private true, :meta {:file "/home/mediocregopher/src/viz/out/quil/middlewares/deprecated_options.cljc", :line 3, :column 16, :end-line 3, :end-column 26, :private true}, :tag cljs.core/IMap}, check-features-vector {:protocol-inline nil, :meta {:file "/home/mediocregopher/src/viz/out/quil/middlewares/deprecated_options.cljc", :line 8, :column 8, :end-line 8, :end-column 29, :private true, :arglists (quote ([features]))}, :private true, :name quil.middlewares.deprecated-options/check-features-vector, :variadic false, :file "out/quil/middlewares/deprecated_options.cljc", :end-column 29, :method-params ([features]), :protocol-impl nil, :arglists-meta (nil nil), :column 1, :line 8, :end-line 8, :max-fixed-arity 1, :fn-var true, :arglists (quote ([features]))}, deprecated-options {:protocol-inline nil, :meta {:file "/home/mediocregopher/src/viz/out/quil/middlewares/deprecated_options.cljc", :line 15, :column 7, :end-line 15, :end-column 25, :arglists (quote ([options])), :doc "Checks if options map contains deprected options and removes them.\n  Prints messages how to fix deprecated functions."}, :name quil.middlewares.deprecated-options/deprecated-options, :variadic false, :file "out/quil/middlewares/deprecated_options.cljc", :end-column 25, :method-params ([options]), :protocol-impl nil, :arglists-meta (nil nil), :column 1, :line 15, :end-line 15, :max-fixed-arity 1, :fn-var true, :arglists (quote ([options])), :doc "Checks if options map contains deprected options and removes them.\n  Prints messages how to fix deprecated functions."}}, :require-macros nil, :cljs.analyzer/constants {:seen #{:features :decor :safe-draw-fn :no-safe-draw :target}, :order [:decor :target :safe-draw-fn :no-safe-draw :features]}, :doc nil}

viz/out/quil/middlewares/deprecated_options.js

@@ -0,0 +1,95 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('quil.middlewares.deprecated_options');
+goog.require('cljs.core');
+quil.middlewares.deprecated_options.deprecated = new cljs.core.PersistentArrayMap(null, 3, [new cljs.core.Keyword(null,"decor","decor",-1730969431),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, ["2.0","Try :features [:present] for similar effect"], null),new cljs.core.Keyword(null,"target","target",253001721),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, ["2.0","Use :features [:keep-on-top] instead."], null),new cljs.core.Keyword(null,"safe-draw-fn","safe-draw-fn",1454900202),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, ["2.0","Use :features [:no-safe-fns] instead."], null)], null);
+quil.middlewares.deprecated_options.check_features_vector = (function quil$middlewares$deprecated_options$check_features_vector(features){
+var features__$1 = cljs.core.set.call(null,features);
+if(cljs.core.truth_(features__$1.call(null,new cljs.core.Keyword(null,"no-safe-draw","no-safe-draw",-1157778157)))){
+cljs.core.println.call(null,"Feature :no-safe-draw was renamed to :no-safe-fns in Quil 2.1.","Use :feature [:no-safe-fns] now.");
+} else {
+}
+
+return cljs.core.disj.call(null,features__$1,new cljs.core.Keyword(null,"no-safe-draw","no-safe-draw",-1157778157));
+});
+/**
+ * Checks if options map contains deprected options and removes them.
+ *   Prints messages how to fix deprecated functions.
+ */
+quil.middlewares.deprecated_options.deprecated_options = (function quil$middlewares$deprecated_options$deprecated_options(options){
+var options__$1 = cljs.core.update_in.call(null,options,new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"features","features",-1146962336)], null),quil.middlewares.deprecated_options.check_features_vector);
+return cljs.core.into.call(null,cljs.core.PersistentArrayMap.EMPTY,cljs.core.remove.call(null,cljs.core.nil_QMARK_,(function (){var iter__7602__auto__ = ((function (options__$1){
+return (function quil$middlewares$deprecated_options$deprecated_options_$_iter__8042(s__8043){
+return (new cljs.core.LazySeq(null,((function (options__$1){
+return (function (){
+var s__8043__$1 = s__8043;
+while(true){
+var temp__4657__auto__ = cljs.core.seq.call(null,s__8043__$1);
+if(temp__4657__auto__){
+var s__8043__$2 = temp__4657__auto__;
+if(cljs.core.chunked_seq_QMARK_.call(null,s__8043__$2)){
+var c__7600__auto__ = cljs.core.chunk_first.call(null,s__8043__$2);
+var size__7601__auto__ = cljs.core.count.call(null,c__7600__auto__);
+var b__8045 = cljs.core.chunk_buffer.call(null,size__7601__auto__);
+if((function (){var i__8044 = (0);
+while(true){
+if((i__8044 < size__7601__auto__)){
+var vec__8058 = cljs.core._nth.call(null,c__7600__auto__,i__8044);
+var name = cljs.core.nth.call(null,vec__8058,(0),null);
+var value = cljs.core.nth.call(null,vec__8058,(1),null);
+cljs.core.chunk_append.call(null,b__8045,(function (){var temp__4655__auto__ = quil.middlewares.deprecated_options.deprecated.call(null,name);
+if(cljs.core.truth_(temp__4655__auto__)){
+var vec__8061 = temp__4655__auto__;
+var version = cljs.core.nth.call(null,vec__8061,(0),null);
+var message = cljs.core.nth.call(null,vec__8061,(1),null);
+cljs.core.println.call(null,name,"option was removed in Quil",version,".",message);
+
+return null;
+} else {
+return new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [name,value], null);
+}
+})());
+
+var G__8070 = (i__8044 + (1));
+i__8044 = G__8070;
+continue;
+} else {
+return true;
+}
+break;
+}
+})()){
+return cljs.core.chunk_cons.call(null,cljs.core.chunk.call(null,b__8045),quil$middlewares$deprecated_options$deprecated_options_$_iter__8042.call(null,cljs.core.chunk_rest.call(null,s__8043__$2)));
+} else {
+return cljs.core.chunk_cons.call(null,cljs.core.chunk.call(null,b__8045),null);
+}
+} else {
+var vec__8064 = cljs.core.first.call(null,s__8043__$2);
+var name = cljs.core.nth.call(null,vec__8064,(0),null);
+var value = cljs.core.nth.call(null,vec__8064,(1),null);
+return cljs.core.cons.call(null,(function (){var temp__4655__auto__ = quil.middlewares.deprecated_options.deprecated.call(null,name);
+if(cljs.core.truth_(temp__4655__auto__)){
+var vec__8067 = temp__4655__auto__;
+var version = cljs.core.nth.call(null,vec__8067,(0),null);
+var message = cljs.core.nth.call(null,vec__8067,(1),null);
+cljs.core.println.call(null,name,"option was removed in Quil",version,".",message);
+
+return null;
+} else {
+return new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [name,value], null);
+}
+})(),quil$middlewares$deprecated_options$deprecated_options_$_iter__8042.call(null,cljs.core.rest.call(null,s__8043__$2)));
+}
+} else {
+return null;
+}
+break;
+}
+});})(options__$1))
+,null,null));
+});})(options__$1))
+;
+return iter__7602__auto__.call(null,options__$1);
+})()));
+});
+
+//# sourceMappingURL=deprecated_options.js.map

viz/out/quil/middlewares/deprecated_options.js.map

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viz/out/quil/middlewares/fun_mode.cljc

@@ -0,0 +1,78 @@
+(ns quil.middlewares.fun-mode
+  (:require [quil.core :as q]))
+
+(defn- wrap-setup [options]
+  (let [setup (:setup options (fn [] nil))]
+    (assoc options
+      :setup #(reset! (q/state-atom) (setup)))))
+
+(defn- wrap-draw-update [options]
+  (let [draw (:draw options (fn [_]))
+        update (:update options identity)
+        quil-draw #(-> (q/state-atom)
+                       (swap! (if (= (q/frame-count) 1)
+                                identity
+                                update))
+                       (draw))]
+    (-> options
+        (dissoc :update)
+        (assoc :draw quil-draw))))
+
+(defn- mouse-event []
+  {:x (q/mouse-x)
+   :y (q/mouse-y)})
+
+(defn- mouse-event-full []
+  {:x (q/mouse-x)
+   :y (q/mouse-y)
+   :button (q/mouse-button)})
+
+(defn- key-event []
+  {:key (q/key-as-keyword)
+   :key-code (q/key-code)
+   :raw-key (q/raw-key)
+   #?@(:clj [:modifiers (q/key-modifiers)])})
+
+(defn- wrap-handler
+  ([options handler-key]
+     (wrap-handler options handler-key nil))
+  ([options handler-key event-fn]
+     (if-let [handler (options handler-key)]
+       (assoc options handler-key
+              (if event-fn
+                #(swap! (q/state-atom) handler (event-fn))
+                #(swap! (q/state-atom) handler)))
+       options)))
+
+(defn- wrap-handlers [options & handlers]
+  (reduce (fn [options handler]
+            (if (keyword? handler)
+              (wrap-handler options handler)
+              (apply wrap-handler options handler)))
+          options handlers))
+
+(defn- wrap-mouse-wheel [options]
+  (if-let [handler (:mouse-wheel options)]
+    (assoc options :mouse-wheel
+           (fn [rotation]
+             (swap! (q/state-atom) handler rotation)))
+    options))
+
+(defn fun-mode
+  "Introduces function mode making all handlers (setup, draw, mouse-click, etc)
+  state-aware. Adds support for 'update' function."
+  [options]
+  (-> options
+      wrap-setup
+      wrap-draw-update
+      (wrap-handlers :focus-gained :focus-lost [:mouse-entered mouse-event]
+                     [:mouse-exited mouse-event] [:mouse-pressed mouse-event-full]
+                     [:mouse-released mouse-event] [:mouse-clicked mouse-event-full]
+                     [:mouse-moved (fn [] {:x (q/mouse-x) :y (q/mouse-y)
+                                           :p-x (q/pmouse-x) :p-y (q/pmouse-y)})]
+                     [:mouse-dragged (fn [] {:x (q/mouse-x) :y (q/mouse-y)
+                                             :p-x (q/pmouse-x) :p-y (q/pmouse-y)
+                                             :button (q/mouse-button)})]
+                     [:key-pressed key-event] :key-released [:key-typed key-event]
+                     :on-close)
+      wrap-mouse-wheel))

viz/out/quil/middlewares/fun_mode.js

@@ -0,0 +1,155 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('quil.middlewares.fun_mode');
+goog.require('cljs.core');
+goog.require('quil.core');
+quil.middlewares.fun_mode.wrap_setup = (function quil$middlewares$fun_mode$wrap_setup(options){
+var setup = new cljs.core.Keyword(null,"setup","setup",1987730512).cljs$core$IFn$_invoke$arity$2(options,(function (){
+return null;
+}));
+return cljs.core.assoc.call(null,options,new cljs.core.Keyword(null,"setup","setup",1987730512),((function (setup){
+return (function (){
+return cljs.core.reset_BANG_.call(null,quil.core.state_atom.call(null),setup.call(null));
+});})(setup))
+);
+});
+quil.middlewares.fun_mode.wrap_draw_update = (function quil$middlewares$fun_mode$wrap_draw_update(options){
+var draw = new cljs.core.Keyword(null,"draw","draw",1358331674).cljs$core$IFn$_invoke$arity$2(options,(function (_){
+return null;
+}));
+var update = new cljs.core.Keyword(null,"update","update",1045576396).cljs$core$IFn$_invoke$arity$2(options,cljs.core.identity);
+var quil_draw = ((function (draw,update){
+return (function (){
+return draw.call(null,cljs.core.swap_BANG_.call(null,quil.core.state_atom.call(null),((cljs.core._EQ_.call(null,quil.core.frame_count.call(null),(1)))?cljs.core.identity:update)));
+});})(draw,update))
+;
+return cljs.core.assoc.call(null,cljs.core.dissoc.call(null,options,new cljs.core.Keyword(null,"update","update",1045576396)),new cljs.core.Keyword(null,"draw","draw",1358331674),quil_draw);
+});
+quil.middlewares.fun_mode.mouse_event = (function quil$middlewares$fun_mode$mouse_event(){
+return new cljs.core.PersistentArrayMap(null, 2, [new cljs.core.Keyword(null,"x","x",2099068185),quil.core.mouse_x.call(null),new cljs.core.Keyword(null,"y","y",-1757859776),quil.core.mouse_y.call(null)], null);
+});
+quil.middlewares.fun_mode.mouse_event_full = (function quil$middlewares$fun_mode$mouse_event_full(){
+return new cljs.core.PersistentArrayMap(null, 3, [new cljs.core.Keyword(null,"x","x",2099068185),quil.core.mouse_x.call(null),new cljs.core.Keyword(null,"y","y",-1757859776),quil.core.mouse_y.call(null),new cljs.core.Keyword(null,"button","button",1456579943),quil.core.mouse_button.call(null)], null);
+});
+quil.middlewares.fun_mode.key_event = (function quil$middlewares$fun_mode$key_event(){
+return new cljs.core.PersistentArrayMap(null, 3, [new cljs.core.Keyword(null,"key","key",-1516042587),quil.core.key_as_keyword.call(null),new cljs.core.Keyword(null,"key-code","key-code",-1732114304),quil.core.key_code.call(null),new cljs.core.Keyword(null,"raw-key","raw-key",-162482279),quil.core.raw_key.call(null)], null);
+});
+quil.middlewares.fun_mode.wrap_handler = (function quil$middlewares$fun_mode$wrap_handler(var_args){
+var args9435 = [];
+var len__7927__auto___9438 = arguments.length;
+var i__7928__auto___9439 = (0);
+while(true){
+if((i__7928__auto___9439 < len__7927__auto___9438)){
+args9435.push((arguments[i__7928__auto___9439]));
+
+var G__9440 = (i__7928__auto___9439 + (1));
+i__7928__auto___9439 = G__9440;
+continue;
+} else {
+}
+break;
+}
+
+var G__9437 = args9435.length;
+switch (G__9437) {
+case 2:
+return quil.middlewares.fun_mode.wrap_handler.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+case 3:
+return quil.middlewares.fun_mode.wrap_handler.cljs$core$IFn$_invoke$arity$3((arguments[(0)]),(arguments[(1)]),(arguments[(2)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args9435.length)].join('')));
+
+}
+});
+
+quil.middlewares.fun_mode.wrap_handler.cljs$core$IFn$_invoke$arity$2 = (function (options,handler_key){
+return quil.middlewares.fun_mode.wrap_handler.call(null,options,handler_key,null);
+});
+
+quil.middlewares.fun_mode.wrap_handler.cljs$core$IFn$_invoke$arity$3 = (function (options,handler_key,event_fn){
+var temp__4655__auto__ = options.call(null,handler_key);
+if(cljs.core.truth_(temp__4655__auto__)){
+var handler = temp__4655__auto__;
+return cljs.core.assoc.call(null,options,handler_key,(cljs.core.truth_(event_fn)?((function (handler,temp__4655__auto__){
+return (function (){
+return cljs.core.swap_BANG_.call(null,quil.core.state_atom.call(null),handler,event_fn.call(null));
+});})(handler,temp__4655__auto__))
+:((function (handler,temp__4655__auto__){
+return (function (){
+return cljs.core.swap_BANG_.call(null,quil.core.state_atom.call(null),handler);
+});})(handler,temp__4655__auto__))
+));
+} else {
+return options;
+}
+});
+
+quil.middlewares.fun_mode.wrap_handler.cljs$lang$maxFixedArity = 3;
+
+quil.middlewares.fun_mode.wrap_handlers = (function quil$middlewares$fun_mode$wrap_handlers(var_args){
+var args__7934__auto__ = [];
+var len__7927__auto___9444 = arguments.length;
+var i__7928__auto___9445 = (0);
+while(true){
+if((i__7928__auto___9445 < len__7927__auto___9444)){
+args__7934__auto__.push((arguments[i__7928__auto___9445]));
+
+var G__9446 = (i__7928__auto___9445 + (1));
+i__7928__auto___9445 = G__9446;
+continue;
+} else {
+}
+break;
+}
+
+var argseq__7935__auto__ = ((((1) < args__7934__auto__.length))?(new cljs.core.IndexedSeq(args__7934__auto__.slice((1)),(0),null)):null);
+return quil.middlewares.fun_mode.wrap_handlers.cljs$core$IFn$_invoke$arity$variadic((arguments[(0)]),argseq__7935__auto__);
+});
+
+quil.middlewares.fun_mode.wrap_handlers.cljs$core$IFn$_invoke$arity$variadic = (function (options,handlers){
+return cljs.core.reduce.call(null,(function (options__$1,handler){
+if((handler instanceof cljs.core.Keyword)){
+return quil.middlewares.fun_mode.wrap_handler.call(null,options__$1,handler);
+} else {
+return cljs.core.apply.call(null,quil.middlewares.fun_mode.wrap_handler,options__$1,handler);
+}
+}),options,handlers);
+});
+
+quil.middlewares.fun_mode.wrap_handlers.cljs$lang$maxFixedArity = (1);
+
+quil.middlewares.fun_mode.wrap_handlers.cljs$lang$applyTo = (function (seq9442){
+var G__9443 = cljs.core.first.call(null,seq9442);
+var seq9442__$1 = cljs.core.next.call(null,seq9442);
+return quil.middlewares.fun_mode.wrap_handlers.cljs$core$IFn$_invoke$arity$variadic(G__9443,seq9442__$1);
+});
+
+quil.middlewares.fun_mode.wrap_mouse_wheel = (function quil$middlewares$fun_mode$wrap_mouse_wheel(options){
+var temp__4655__auto__ = new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439).cljs$core$IFn$_invoke$arity$1(options);
+if(cljs.core.truth_(temp__4655__auto__)){
+var handler = temp__4655__auto__;
+return cljs.core.assoc.call(null,options,new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439),((function (handler,temp__4655__auto__){
+return (function (rotation){
+return cljs.core.swap_BANG_.call(null,quil.core.state_atom.call(null),handler,rotation);
+});})(handler,temp__4655__auto__))
+);
+} else {
+return options;
+}
+});
+/**
+ * Introduces function mode making all handlers (setup, draw, mouse-click, etc)
+ *   state-aware. Adds support for 'update' function.
+ */
+quil.middlewares.fun_mode.fun_mode = (function quil$middlewares$fun_mode$fun_mode(options){
+return quil.middlewares.fun_mode.wrap_mouse_wheel.call(null,quil.middlewares.fun_mode.wrap_handlers.call(null,quil.middlewares.fun_mode.wrap_draw_update.call(null,quil.middlewares.fun_mode.wrap_setup.call(null,options)),new cljs.core.Keyword(null,"focus-gained","focus-gained",-857086384),new cljs.core.Keyword(null,"focus-lost","focus-lost",-554849613),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"mouse-entered","mouse-entered",811350322),quil.middlewares.fun_mode.mouse_event], null),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"mouse-exited","mouse-exited",-483205244),quil.middlewares.fun_mode.mouse_event], null),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"mouse-pressed","mouse-pressed",736955536),quil.middlewares.fun_mode.mouse_event_full], null),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"mouse-released","mouse-released",-664480061),quil.middlewares.fun_mode.mouse_event], null),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"mouse-clicked","mouse-clicked",-199339421),quil.middlewares.fun_mode.mouse_event_full], null),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"mouse-moved","mouse-moved",-1918152310),(function (){
+return new cljs.core.PersistentArrayMap(null, 4, [new cljs.core.Keyword(null,"x","x",2099068185),quil.core.mouse_x.call(null),new cljs.core.Keyword(null,"y","y",-1757859776),quil.core.mouse_y.call(null),new cljs.core.Keyword(null,"p-x","p-x",-1721211211),quil.core.pmouse_x.call(null),new cljs.core.Keyword(null,"p-y","p-y",-530704830),quil.core.pmouse_y.call(null)], null);
+})], null),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"mouse-dragged","mouse-dragged",-1220073441),(function (){
+return new cljs.core.PersistentArrayMap(null, 5, [new cljs.core.Keyword(null,"x","x",2099068185),quil.core.mouse_x.call(null),new cljs.core.Keyword(null,"y","y",-1757859776),quil.core.mouse_y.call(null),new cljs.core.Keyword(null,"p-x","p-x",-1721211211),quil.core.pmouse_x.call(null),new cljs.core.Keyword(null,"p-y","p-y",-530704830),quil.core.pmouse_y.call(null),new cljs.core.Keyword(null,"button","button",1456579943),quil.core.mouse_button.call(null)], null);
+})], null),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"key-pressed","key-pressed",-757100364),quil.middlewares.fun_mode.key_event], null),new cljs.core.Keyword(null,"key-released","key-released",215919828),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"key-typed","key-typed",-876037597),quil.middlewares.fun_mode.key_event], null),new cljs.core.Keyword(null,"on-close","on-close",-761178394)));
+});
+
+//# sourceMappingURL=fun_mode.js.map

viz/out/quil/middlewares/fun_mode.js.map

@@ -0,0 +1 @@
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viz/out/quil/middlewares/navigation_2d.cljc

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+(ns quil.middlewares.navigation-2d
+  (:require [quil.core :as q :include-macros true]))
+
+(def ^:private missing-navigation-key-error
+  (str "state map is missing :navigation-2d key. "
+       "Did you accidentally removed it from the state in "
+       ":update or any other handler?"))
+
+(defn- assert-state-has-navigation
+  "Asserts that state map contains :navigation-2d object."
+  [state]
+  (when-not (:navigation-2d state)
+    (throw #?(:clj (RuntimeException. missing-navigation-key-error)
+              :cljs (js/Error. missing-navigation-key-error)))))
+
+(defn- default-position
+  "Default position configuration: zoom is neutral and central point is
+  width/2, height/2."
+  []
+  {:position [(/ (q/width) 2.0)
+              (/ (q/height) 2.0)]
+   :zoom 1})
+
+(defn- setup-2d-nav
+  "Custom 'setup' function which creates initial position
+  configuration and puts it to the state map."
+  [user-setup user-settings]
+  (let [initial-state (-> user-settings
+                          (select-keys [:position :zoom])
+                          (->> (merge (default-position))))]
+    (update-in (user-setup) [:navigation-2d]
+               #(merge initial-state %))))
+
+(defn- mouse-dragged
+  "Changes center of the sketch depending on the last mouse move. Takes
+  zoom into account as well."
+  [state event]
+  (assert-state-has-navigation state)
+  (let [dx (- (:p-x event) (:x event))
+        dy (- (:p-y event) (:y event))
+        zoom (-> state :navigation-2d :zoom)]
+   (-> state
+       (update-in [:navigation-2d :position 0] + (/ dx zoom))
+       (update-in [:navigation-2d :position 1] + (/ dy zoom)))))
+
+(defn- mouse-wheel
+  "Changes zoom settings based on scroll."
+  [state event]
+  (assert-state-has-navigation state)
+  (update-in state [:navigation-2d :zoom] * (+ 1 (* -0.1 event))))
+
+(defn- draw
+  "Calls user draw function with necessary all transformations (position
+  and zoom) applied."
+  [user-draw state]
+  (assert-state-has-navigation state)
+  (q/push-matrix)
+  (let [nav-2d (:navigation-2d state)
+        zoom (:zoom nav-2d)
+        pos (:position nav-2d)]
+    (q/scale zoom)
+    (q/with-translation [(- (/ (q/width) 2 zoom) (first pos))
+                         (- (/ (q/height) 2 zoom) (second pos))]
+      (user-draw state)))
+  (q/pop-matrix))
+
+(defn navigation-2d
+  "Enables navigation over 2D sketch. Dragging mouse will move center of the
+  skecth and mouse wheel controls zoom."
+  [options]
+  (let [; 2d-navigation related user settings
+        user-settings (:navigation-2d options)
+
+        ; user-provided handlers which will be overridden
+        ; by 3d-navigation
+        user-draw (:draw options (fn [state]))
+        user-mouse-dragged (:mouse-dragged options (fn [state _] state))
+        user-mouse-wheel (:mouse-wheel options (fn [state _] state))
+        setup (:setup options (fn [] {}))]
+    (assoc options
+
+      :setup (partial setup-2d-nav setup user-settings)
+
+      :draw (partial draw user-draw)
+
+      :mouse-dragged (fn [state event]
+                       (user-mouse-dragged (mouse-dragged state event) event))
+      :mouse-wheel (fn [state event]
+                     (user-mouse-wheel (mouse-wheel state event) event)))))

viz/out/quil/middlewares/navigation_2d.js

@@ -0,0 +1,116 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('quil.middlewares.navigation_2d');
+goog.require('cljs.core');
+goog.require('quil.core');
+quil.middlewares.navigation_2d.missing_navigation_key_error = [cljs.core.str.cljs$core$IFn$_invoke$arity$1("state map is missing :navigation-2d key. "),cljs.core.str.cljs$core$IFn$_invoke$arity$1("Did you accidentally removed it from the state in "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(":update or any other handler?")].join('');
+/**
+ * Asserts that state map contains :navigation-2d object.
+ */
+quil.middlewares.navigation_2d.assert_state_has_navigation = (function quil$middlewares$navigation_2d$assert_state_has_navigation(state){
+if(cljs.core.truth_(new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611).cljs$core$IFn$_invoke$arity$1(state))){
+return null;
+} else {
+throw (new Error(quil.middlewares.navigation_2d.missing_navigation_key_error));
+}
+});
+/**
+ * Default position configuration: zoom is neutral and central point is
+ *   width/2, height/2.
+ */
+quil.middlewares.navigation_2d.default_position = (function quil$middlewares$navigation_2d$default_position(){
+return new cljs.core.PersistentArrayMap(null, 2, [new cljs.core.Keyword(null,"position","position",-2011731912),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [(quil.core.width.call(null) / 2.0),(quil.core.height.call(null) / 2.0)], null),new cljs.core.Keyword(null,"zoom","zoom",-1827487038),(1)], null);
+});
+/**
+ * Custom 'setup' function which creates initial position
+ *   configuration and puts it to the state map.
+ */
+quil.middlewares.navigation_2d.setup_2d_nav = (function quil$middlewares$navigation_2d$setup_2d_nav(user_setup,user_settings){
+var initial_state = cljs.core.merge.call(null,quil.middlewares.navigation_2d.default_position.call(null),cljs.core.select_keys.call(null,user_settings,new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"position","position",-2011731912),new cljs.core.Keyword(null,"zoom","zoom",-1827487038)], null)));
+return cljs.core.update_in.call(null,user_setup.call(null),new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611)], null),((function (initial_state){
+return (function (p1__9428_SHARP_){
+return cljs.core.merge.call(null,initial_state,p1__9428_SHARP_);
+});})(initial_state))
+);
+});
+/**
+ * Changes center of the sketch depending on the last mouse move. Takes
+ *   zoom into account as well.
+ */
+quil.middlewares.navigation_2d.mouse_dragged = (function quil$middlewares$navigation_2d$mouse_dragged(state,event){
+quil.middlewares.navigation_2d.assert_state_has_navigation.call(null,state);
+
+var dx = (new cljs.core.Keyword(null,"p-x","p-x",-1721211211).cljs$core$IFn$_invoke$arity$1(event) - new cljs.core.Keyword(null,"x","x",2099068185).cljs$core$IFn$_invoke$arity$1(event));
+var dy = (new cljs.core.Keyword(null,"p-y","p-y",-530704830).cljs$core$IFn$_invoke$arity$1(event) - new cljs.core.Keyword(null,"y","y",-1757859776).cljs$core$IFn$_invoke$arity$1(event));
+var zoom = new cljs.core.Keyword(null,"zoom","zoom",-1827487038).cljs$core$IFn$_invoke$arity$1(new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611).cljs$core$IFn$_invoke$arity$1(state));
+return cljs.core.update_in.call(null,cljs.core.update_in.call(null,state,new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611),new cljs.core.Keyword(null,"position","position",-2011731912),(0)], null),cljs.core._PLUS_,(dx / zoom)),new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611),new cljs.core.Keyword(null,"position","position",-2011731912),(1)], null),cljs.core._PLUS_,(dy / zoom));
+});
+/**
+ * Changes zoom settings based on scroll.
+ */
+quil.middlewares.navigation_2d.mouse_wheel = (function quil$middlewares$navigation_2d$mouse_wheel(state,event){
+quil.middlewares.navigation_2d.assert_state_has_navigation.call(null,state);
+
+return cljs.core.update_in.call(null,state,new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611),new cljs.core.Keyword(null,"zoom","zoom",-1827487038)], null),cljs.core._STAR_,((1) + (-0.1 * event)));
+});
+/**
+ * Calls user draw function with necessary all transformations (position
+ *   and zoom) applied.
+ */
+quil.middlewares.navigation_2d.draw = (function quil$middlewares$navigation_2d$draw(user_draw,state){
+quil.middlewares.navigation_2d.assert_state_has_navigation.call(null,state);
+
+quil.core.push_matrix.call(null);
+
+var nav_2d_9429 = new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611).cljs$core$IFn$_invoke$arity$1(state);
+var zoom_9430 = new cljs.core.Keyword(null,"zoom","zoom",-1827487038).cljs$core$IFn$_invoke$arity$1(nav_2d_9429);
+var pos_9431 = new cljs.core.Keyword(null,"position","position",-2011731912).cljs$core$IFn$_invoke$arity$1(nav_2d_9429);
+quil.core.scale.call(null,zoom_9430);
+
+var tr__9351__auto___9432 = new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [(((quil.core.width.call(null) / (2)) / zoom_9430) - cljs.core.first.call(null,pos_9431)),(((quil.core.height.call(null) / (2)) / zoom_9430) - cljs.core.second.call(null,pos_9431))], null);
+quil.core.push_matrix.call(null);
+
+try{quil.core.translate.call(null,tr__9351__auto___9432);
+
+user_draw.call(null,state);
+}finally {quil.core.pop_matrix.call(null);
+}
+return quil.core.pop_matrix.call(null);
+});
+/**
+ * Enables navigation over 2D sketch. Dragging mouse will move center of the
+ *   skecth and mouse wheel controls zoom.
+ */
+quil.middlewares.navigation_2d.navigation_2d = (function quil$middlewares$navigation_2d$navigation_2d(options){
+var user_settings = new cljs.core.Keyword(null,"navigation-2d","navigation-2d",-1924168611).cljs$core$IFn$_invoke$arity$1(options);
+var user_draw = new cljs.core.Keyword(null,"draw","draw",1358331674).cljs$core$IFn$_invoke$arity$2(options,((function (user_settings){
+return (function (state){
+return null;
+});})(user_settings))
+);
+var user_mouse_dragged = new cljs.core.Keyword(null,"mouse-dragged","mouse-dragged",-1220073441).cljs$core$IFn$_invoke$arity$2(options,((function (user_settings,user_draw){
+return (function (state,_){
+return state;
+});})(user_settings,user_draw))
+);
+var user_mouse_wheel = new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439).cljs$core$IFn$_invoke$arity$2(options,((function (user_settings,user_draw,user_mouse_dragged){
+return (function (state,_){
+return state;
+});})(user_settings,user_draw,user_mouse_dragged))
+);
+var setup = new cljs.core.Keyword(null,"setup","setup",1987730512).cljs$core$IFn$_invoke$arity$2(options,((function (user_settings,user_draw,user_mouse_dragged,user_mouse_wheel){
+return (function (){
+return cljs.core.PersistentArrayMap.EMPTY;
+});})(user_settings,user_draw,user_mouse_dragged,user_mouse_wheel))
+);
+return cljs.core.assoc.call(null,options,new cljs.core.Keyword(null,"setup","setup",1987730512),cljs.core.partial.call(null,quil.middlewares.navigation_2d.setup_2d_nav,setup,user_settings),new cljs.core.Keyword(null,"draw","draw",1358331674),cljs.core.partial.call(null,quil.middlewares.navigation_2d.draw,user_draw),new cljs.core.Keyword(null,"mouse-dragged","mouse-dragged",-1220073441),((function (user_settings,user_draw,user_mouse_dragged,user_mouse_wheel,setup){
+return (function (state,event){
+return user_mouse_dragged.call(null,quil.middlewares.navigation_2d.mouse_dragged.call(null,state,event),event);
+});})(user_settings,user_draw,user_mouse_dragged,user_mouse_wheel,setup))
+,new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439),((function (user_settings,user_draw,user_mouse_dragged,user_mouse_wheel,setup){
+return (function (state,event){
+return user_mouse_wheel.call(null,quil.middlewares.navigation_2d.mouse_wheel.call(null,state,event),event);
+});})(user_settings,user_draw,user_mouse_dragged,user_mouse_wheel,setup))
+);
+});
+
+//# sourceMappingURL=navigation_2d.js.map

viz/out/quil/middlewares/navigation_2d.js.map

@@ -0,0 +1 @@
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viz/out/quil/middlewares/navigation_3d.cljc

@@ -0,0 +1,188 @@
+(ns quil.middlewares.navigation-3d
+  (:require [quil.core :as q]))
+
+(def ^:private missing-navigation-key-error
+  (str "state map is missing :navigation-3d key. "
+       "Did you accidentally removed it from the state in "
+       ":update or any other handler?"))
+
+(defn- assert-state-has-navigation
+  "Asserts that state map contains :navigation-2d object."
+  [state]
+  (when-not (:navigation-3d state)
+    (throw #?(:clj (RuntimeException. missing-navigation-key-error)
+              :cljs (js/Error. missing-navigation-key-error)))))
+
+(defn- default-position
+  "Default position configuration. Check default configuration in
+  'camera' function."
+  []
+  {:position [(/ (q/width) 2.0)
+              (/ (q/height) 2.0)
+              (/ (q/height) 2.0 (q/tan (/ (* q/PI 60.0) 360.0)))]
+   :straight [0 0 -1]
+   :up [0 1 0]})
+
+(defn- rotate-by-axis-and-angle
+  "Rotates vector v by angle with axis.
+  Formula is taken from wiki:
+  http://en.wikipedia.org/wiki/Rotation_matrix#Rotation_matrix_from_axis_and_angle"
+  [v axis angle]
+  (let [[a-x a-y a-z] axis
+        [x y z] v
+        cs (q/cos angle)
+        -cs (- 1 cs)
+        sn (q/sin angle)
+        ; Matrix is
+        ; [a b c]
+        ; [d e f]
+        ; [g h i]
+        a (+ cs (* a-x a-x -cs))
+        b (- (* a-x a-y -cs)
+             (* a-z sn))
+        c (+ (* a-x a-z -cs)
+             (* a-y sn))
+        d (+ (* a-x a-y -cs)
+             (* a-z sn))
+        e (+ cs (* a-y a-y -cs))
+        f (- (* a-y a-z -cs)
+             (* a-x sn))
+        g (- (* a-x a-z -cs)
+             (* a-y sn))
+        h (+ (* a-y a-z -cs)
+             (* a-x sn))
+        i (+ cs (* a-z a-z -cs))]
+    [(+ (* a x) (* b y) (* c z))
+     (+ (* d x) (* e y) (* f z))
+     (+ (* g x) (* h y) (* i z))]))
+
+(defn- rotate-lr
+  "Rotates nav-3d configuration left-right. angle positive - rotate right,
+  negative - left."
+  [nav-3d angle]
+  (update-in nav-3d [:straight] rotate-by-axis-and-angle (:up nav-3d) angle))
+
+(defn- cross-product
+  "Vector cross-product: http://en.wikipedia.org/wiki/Cross_product"
+  [[u1 u2 u3] [v1 v2 v3]]
+  [(- (* u2 v3) (* u3 v2))
+   (- (* u3 v1) (* u1 v3))
+   (- (* u1 v2) (* u2 v1))])
+
+(defn- v-mult
+  "Multiply vector v by scalar mult."
+  [v mult]
+  (mapv #(* % mult) v))
+
+(defn- v-plus
+  "Sum of 2 vectors."
+  [v1 v2]
+  (mapv + v1 v2))
+
+(defn- v-opposite
+  "Returns vector opposite to vector v."
+  [v]
+  (v-mult v -1))
+
+(defn- v-normalize
+  "Normalize vector, returning vector
+  which has same direction but with norm equals to 1."
+  [v]
+  (let [norm (->> (map q/sq v)
+                  (apply +)
+                  (q/sqrt))]
+    (v-mult v (/ norm))))
+
+(defn- rotate-ud
+  "Rotates nav-3d configuration up-down."
+  [nav-3d angle]
+  (let [axis (cross-product (:straight nav-3d) (:up nav-3d))
+        rotate #(rotate-by-axis-and-angle % axis angle)]
+    (-> nav-3d
+        (update-in [:straight] rotate)
+        (update-in [:up] rotate))))
+
+(defn- rotate
+  "Mouse handler function which rotates nav-3d configuration.
+  It uses mouse from event object and pixels-in-360 to calculate
+  angles to rotate."
+  [state event pixels-in-360]
+  (assert-state-has-navigation state)
+  (if (= 0 (:p-x event) (:p-y event))
+    state
+    (let [dx (- (:p-x event) (:x event))
+          dy (- (:y event) (:p-y event))
+          angle-lr (q/map-range dx 0 pixels-in-360 0 q/TWO-PI)
+          angle-ud (q/map-range dy 0 pixels-in-360 0 q/TWO-PI)]
+      (update-in state [:navigation-3d]
+                 #(-> %
+                      (rotate-lr angle-lr)
+                      (rotate-ud angle-ud))))))
+
+(def ^:private space (keyword " "))
+
+(defn- move
+  "Keyboard handler function which moves nav-3d configuration.
+  It uses keyboard key from event object to determing in which
+  direction to move."
+  [state event step-size]
+  (assert-state-has-navigation state)
+  (let [{:keys [up straight]} (:navigation-3d state)]
+    (if-let [dir (condp = (:key event)
+                   :w straight
+                   :s (v-opposite straight)
+                   space (v-opposite up)
+                   :z up
+                   :d (cross-product straight up)
+                   :a (cross-product up straight)
+                   nil)]
+      (update-in state [:navigation-3d :position]
+                 #(v-plus % (v-mult dir step-size)))
+      state)))
+
+(defn- setup-3d-nav
+  "Custom 'setup' function which creates initial position
+  configuration and puts it to the state map."
+  [user-setup user-settings]
+  (let [initial-state (-> user-settings
+                          (select-keys [:straight :up :position])
+                          (->> (merge (default-position)))
+                          (update-in [:straight] v-normalize)
+                          (update-in [:up] v-normalize))]
+    (update-in (user-setup) [:navigation-3d]
+               #(merge initial-state %))))
+
+(defn navigation-3d
+  "Enables navigation in 3D space. Similar to how it is done in
+  shooters: WASD navigation, space is go up, z is go down,
+  drag mouse to look around."
+  [options]
+  (let [; 3d-navigation related user settings
+        user-settings (:navigation-3d options)
+        pixels-in-360 (:pixels-in-360 user-settings 1000)
+        step-size (:step-size user-settings 20)
+        rotate-on (:rotate-on user-settings :mouse-dragged)
+
+        ; user-provided handlers which will be overridden
+        ; by 3d-navigation
+        draw (:draw options (fn [state]))
+        key-pressed (:key-pressed options (fn [state _] state))
+        rotate-on-fn (rotate-on options (fn [state _] state))
+        setup (:setup options (fn [] {}))]
+    (assoc options
+
+      :setup (partial setup-3d-nav setup user-settings)
+
+      :draw (fn [state]
+              (assert-state-has-navigation state)
+              (let [{[c-x c-y c-z] :straight
+                     [u-x u-y u-z] :up
+                     [p-x p-y p-z] :position} (:navigation-3d state)]
+                (q/camera p-x p-y p-z (+ p-x c-x) (+ p-y c-y) (+ p-z c-z) u-x u-y u-z))
+              (draw state))
+
+      :key-pressed (fn [state event]
+                     (key-pressed (move state event step-size) event))
+
+      rotate-on (fn [state event]
+                  (rotate-on-fn (rotate state event pixels-in-360) event)) )))

viz/out/quil/middlewares/navigation_3d.js

@@ -0,0 +1,261 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('quil.middlewares.navigation_3d');
+goog.require('cljs.core');
+goog.require('quil.core');
+quil.middlewares.navigation_3d.missing_navigation_key_error = [cljs.core.str.cljs$core$IFn$_invoke$arity$1("state map is missing :navigation-3d key. "),cljs.core.str.cljs$core$IFn$_invoke$arity$1("Did you accidentally removed it from the state in "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(":update or any other handler?")].join('');
+/**
+ * Asserts that state map contains :navigation-2d object.
+ */
+quil.middlewares.navigation_3d.assert_state_has_navigation = (function quil$middlewares$navigation_3d$assert_state_has_navigation(state){
+if(cljs.core.truth_(new cljs.core.Keyword(null,"navigation-3d","navigation-3d",682305301).cljs$core$IFn$_invoke$arity$1(state))){
+return null;
+} else {
+throw (new Error(quil.middlewares.navigation_3d.missing_navigation_key_error));
+}
+});
+/**
+ * Default position configuration. Check default configuration in
+ *   'camera' function.
+ */
+quil.middlewares.navigation_3d.default_position = (function quil$middlewares$navigation_3d$default_position(){
+return new cljs.core.PersistentArrayMap(null, 3, [new cljs.core.Keyword(null,"position","position",-2011731912),new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [(quil.core.width.call(null) / 2.0),(quil.core.height.call(null) / 2.0),((quil.core.height.call(null) / 2.0) / quil.core.tan.call(null,((quil.core.PI * 60.0) / 360.0)))], null),new cljs.core.Keyword(null,"straight","straight",-1252567854),new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [(0),(0),(-1)], null),new cljs.core.Keyword(null,"up","up",-269712113),new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [(0),(1),(0)], null)], null);
+});
+/**
+ * Rotates vector v by angle with axis.
+ *   Formula is taken from wiki:
+ *   http://en.wikipedia.org/wiki/Rotation_matrix#Rotation_matrix_from_axis_and_angle
+ */
+quil.middlewares.navigation_3d.rotate_by_axis_and_angle = (function quil$middlewares$navigation_3d$rotate_by_axis_and_angle(v,axis,angle){
+var vec__8900 = axis;
+var a_x = cljs.core.nth.call(null,vec__8900,(0),null);
+var a_y = cljs.core.nth.call(null,vec__8900,(1),null);
+var a_z = cljs.core.nth.call(null,vec__8900,(2),null);
+var vec__8903 = v;
+var x = cljs.core.nth.call(null,vec__8903,(0),null);
+var y = cljs.core.nth.call(null,vec__8903,(1),null);
+var z = cljs.core.nth.call(null,vec__8903,(2),null);
+var cs = quil.core.cos.call(null,angle);
+var _cs = ((1) - cs);
+var sn = quil.core.sin.call(null,angle);
+var a = (cs + ((a_x * a_x) * _cs));
+var b = (((a_x * a_y) * _cs) - (a_z * sn));
+var c = (((a_x * a_z) * _cs) + (a_y * sn));
+var d = (((a_x * a_y) * _cs) + (a_z * sn));
+var e = (cs + ((a_y * a_y) * _cs));
+var f = (((a_y * a_z) * _cs) - (a_x * sn));
+var g = (((a_x * a_z) * _cs) - (a_y * sn));
+var h = (((a_y * a_z) * _cs) + (a_x * sn));
+var i = (cs + ((a_z * a_z) * _cs));
+return new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [(((a * x) + (b * y)) + (c * z)),(((d * x) + (e * y)) + (f * z)),(((g * x) + (h * y)) + (i * z))], null);
+});
+/**
+ * Rotates nav-3d configuration left-right. angle positive - rotate right,
+ *   negative - left.
+ */
+quil.middlewares.navigation_3d.rotate_lr = (function quil$middlewares$navigation_3d$rotate_lr(nav_3d,angle){
+return cljs.core.update_in.call(null,nav_3d,new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"straight","straight",-1252567854)], null),quil.middlewares.navigation_3d.rotate_by_axis_and_angle,new cljs.core.Keyword(null,"up","up",-269712113).cljs$core$IFn$_invoke$arity$1(nav_3d),angle);
+});
+/**
+ * Vector cross-product: http://en.wikipedia.org/wiki/Cross_product
+ */
+quil.middlewares.navigation_3d.cross_product = (function quil$middlewares$navigation_3d$cross_product(p__8906,p__8907){
+var vec__8914 = p__8906;
+var u1 = cljs.core.nth.call(null,vec__8914,(0),null);
+var u2 = cljs.core.nth.call(null,vec__8914,(1),null);
+var u3 = cljs.core.nth.call(null,vec__8914,(2),null);
+var vec__8917 = p__8907;
+var v1 = cljs.core.nth.call(null,vec__8917,(0),null);
+var v2 = cljs.core.nth.call(null,vec__8917,(1),null);
+var v3 = cljs.core.nth.call(null,vec__8917,(2),null);
+return new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [((u2 * v3) - (u3 * v2)),((u3 * v1) - (u1 * v3)),((u1 * v2) - (u2 * v1))], null);
+});
+/**
+ * Multiply vector v by scalar mult.
+ */
+quil.middlewares.navigation_3d.v_mult = (function quil$middlewares$navigation_3d$v_mult(v,mult){
+return cljs.core.mapv.call(null,(function (p1__8920_SHARP_){
+return (p1__8920_SHARP_ * mult);
+}),v);
+});
+/**
+ * Sum of 2 vectors.
+ */
+quil.middlewares.navigation_3d.v_plus = (function quil$middlewares$navigation_3d$v_plus(v1,v2){
+return cljs.core.mapv.call(null,cljs.core._PLUS_,v1,v2);
+});
+/**
+ * Returns vector opposite to vector v.
+ */
+quil.middlewares.navigation_3d.v_opposite = (function quil$middlewares$navigation_3d$v_opposite(v){
+return quil.middlewares.navigation_3d.v_mult.call(null,v,(-1));
+});
+/**
+ * Normalize vector, returning vector
+ *   which has same direction but with norm equals to 1.
+ */
+quil.middlewares.navigation_3d.v_normalize = (function quil$middlewares$navigation_3d$v_normalize(v){
+var norm = quil.core.sqrt.call(null,cljs.core.apply.call(null,cljs.core._PLUS_,cljs.core.map.call(null,quil.core.sq,v)));
+return quil.middlewares.navigation_3d.v_mult.call(null,v,((1) / norm));
+});
+/**
+ * Rotates nav-3d configuration up-down.
+ */
+quil.middlewares.navigation_3d.rotate_ud = (function quil$middlewares$navigation_3d$rotate_ud(nav_3d,angle){
+var axis = quil.middlewares.navigation_3d.cross_product.call(null,new cljs.core.Keyword(null,"straight","straight",-1252567854).cljs$core$IFn$_invoke$arity$1(nav_3d),new cljs.core.Keyword(null,"up","up",-269712113).cljs$core$IFn$_invoke$arity$1(nav_3d));
+var rotate = ((function (axis){
+return (function (p1__8921_SHARP_){
+return quil.middlewares.navigation_3d.rotate_by_axis_and_angle.call(null,p1__8921_SHARP_,axis,angle);
+});})(axis))
+;
+return cljs.core.update_in.call(null,cljs.core.update_in.call(null,nav_3d,new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"straight","straight",-1252567854)], null),rotate),new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"up","up",-269712113)], null),rotate);
+});
+/**
+ * Mouse handler function which rotates nav-3d configuration.
+ *   It uses mouse from event object and pixels-in-360 to calculate
+ *   angles to rotate.
+ */
+quil.middlewares.navigation_3d.rotate = (function quil$middlewares$navigation_3d$rotate(state,event,pixels_in_360){
+quil.middlewares.navigation_3d.assert_state_has_navigation.call(null,state);
+
+if(cljs.core._EQ_.call(null,(0),new cljs.core.Keyword(null,"p-x","p-x",-1721211211).cljs$core$IFn$_invoke$arity$1(event),new cljs.core.Keyword(null,"p-y","p-y",-530704830).cljs$core$IFn$_invoke$arity$1(event))){
+return state;
+} else {
+var dx = (new cljs.core.Keyword(null,"p-x","p-x",-1721211211).cljs$core$IFn$_invoke$arity$1(event) - new cljs.core.Keyword(null,"x","x",2099068185).cljs$core$IFn$_invoke$arity$1(event));
+var dy = (new cljs.core.Keyword(null,"y","y",-1757859776).cljs$core$IFn$_invoke$arity$1(event) - new cljs.core.Keyword(null,"p-y","p-y",-530704830).cljs$core$IFn$_invoke$arity$1(event));
+var angle_lr = quil.core.map_range.call(null,dx,(0),pixels_in_360,(0),quil.core.TWO_PI);
+var angle_ud = quil.core.map_range.call(null,dy,(0),pixels_in_360,(0),quil.core.TWO_PI);
+return cljs.core.update_in.call(null,state,new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"navigation-3d","navigation-3d",682305301)], null),((function (dx,dy,angle_lr,angle_ud){
+return (function (p1__8922_SHARP_){
+return quil.middlewares.navigation_3d.rotate_ud.call(null,quil.middlewares.navigation_3d.rotate_lr.call(null,p1__8922_SHARP_,angle_lr),angle_ud);
+});})(dx,dy,angle_lr,angle_ud))
+);
+}
+});
+quil.middlewares.navigation_3d.space = cljs.core.keyword.call(null," ");
+/**
+ * Keyboard handler function which moves nav-3d configuration.
+ *   It uses keyboard key from event object to determing in which
+ *   direction to move.
+ */
+quil.middlewares.navigation_3d.move = (function quil$middlewares$navigation_3d$move(state,event,step_size){
+quil.middlewares.navigation_3d.assert_state_has_navigation.call(null,state);
+
+var map__8929 = new cljs.core.Keyword(null,"navigation-3d","navigation-3d",682305301).cljs$core$IFn$_invoke$arity$1(state);
+var map__8929__$1 = ((((!((map__8929 == null)))?((((map__8929.cljs$lang$protocol_mask$partition0$ & (64))) || ((cljs.core.PROTOCOL_SENTINEL === map__8929.cljs$core$ISeq$)))?true:false):false))?cljs.core.apply.call(null,cljs.core.hash_map,map__8929):map__8929);
+var up = cljs.core.get.call(null,map__8929__$1,new cljs.core.Keyword(null,"up","up",-269712113));
+var straight = cljs.core.get.call(null,map__8929__$1,new cljs.core.Keyword(null,"straight","straight",-1252567854));
+var temp__4655__auto__ = (function (){var pred__8931 = cljs.core._EQ_;
+var expr__8932 = new cljs.core.Keyword(null,"key","key",-1516042587).cljs$core$IFn$_invoke$arity$1(event);
+if(cljs.core.truth_(pred__8931.call(null,new cljs.core.Keyword(null,"w","w",354169001),expr__8932))){
+return straight;
+} else {
+if(cljs.core.truth_(pred__8931.call(null,new cljs.core.Keyword(null,"s","s",1705939918),expr__8932))){
+return quil.middlewares.navigation_3d.v_opposite.call(null,straight);
+} else {
+if(cljs.core.truth_(pred__8931.call(null,quil.middlewares.navigation_3d.space,expr__8932))){
+return quil.middlewares.navigation_3d.v_opposite.call(null,up);
+} else {
+if(cljs.core.truth_(pred__8931.call(null,new cljs.core.Keyword(null,"z","z",-789527183),expr__8932))){
+return up;
+} else {
+if(cljs.core.truth_(pred__8931.call(null,new cljs.core.Keyword(null,"d","d",1972142424),expr__8932))){
+return quil.middlewares.navigation_3d.cross_product.call(null,straight,up);
+} else {
+if(cljs.core.truth_(pred__8931.call(null,new cljs.core.Keyword(null,"a","a",-2123407586),expr__8932))){
+return quil.middlewares.navigation_3d.cross_product.call(null,up,straight);
+} else {
+return null;
+}
+}
+}
+}
+}
+}
+})();
+if(cljs.core.truth_(temp__4655__auto__)){
+var dir = temp__4655__auto__;
+return cljs.core.update_in.call(null,state,new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"navigation-3d","navigation-3d",682305301),new cljs.core.Keyword(null,"position","position",-2011731912)], null),((function (dir,temp__4655__auto__,map__8929,map__8929__$1,up,straight){
+return (function (p1__8923_SHARP_){
+return quil.middlewares.navigation_3d.v_plus.call(null,p1__8923_SHARP_,quil.middlewares.navigation_3d.v_mult.call(null,dir,step_size));
+});})(dir,temp__4655__auto__,map__8929,map__8929__$1,up,straight))
+);
+} else {
+return state;
+}
+});
+/**
+ * Custom 'setup' function which creates initial position
+ *   configuration and puts it to the state map.
+ */
+quil.middlewares.navigation_3d.setup_3d_nav = (function quil$middlewares$navigation_3d$setup_3d_nav(user_setup,user_settings){
+var initial_state = cljs.core.update_in.call(null,cljs.core.update_in.call(null,cljs.core.merge.call(null,quil.middlewares.navigation_3d.default_position.call(null),cljs.core.select_keys.call(null,user_settings,new cljs.core.PersistentVector(null, 3, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"straight","straight",-1252567854),new cljs.core.Keyword(null,"up","up",-269712113),new cljs.core.Keyword(null,"position","position",-2011731912)], null))),new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"straight","straight",-1252567854)], null),quil.middlewares.navigation_3d.v_normalize),new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"up","up",-269712113)], null),quil.middlewares.navigation_3d.v_normalize);
+return cljs.core.update_in.call(null,user_setup.call(null),new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [new cljs.core.Keyword(null,"navigation-3d","navigation-3d",682305301)], null),((function (initial_state){
+return (function (p1__8934_SHARP_){
+return cljs.core.merge.call(null,initial_state,p1__8934_SHARP_);
+});})(initial_state))
+);
+});
+/**
+ * Enables navigation in 3D space. Similar to how it is done in
+ *   shooters: WASD navigation, space is go up, z is go down,
+ *   drag mouse to look around.
+ */
+quil.middlewares.navigation_3d.navigation_3d = (function quil$middlewares$navigation_3d$navigation_3d(options){
+var user_settings = new cljs.core.Keyword(null,"navigation-3d","navigation-3d",682305301).cljs$core$IFn$_invoke$arity$1(options);
+var pixels_in_360 = new cljs.core.Keyword(null,"pixels-in-360","pixels-in-360",1789567298).cljs$core$IFn$_invoke$arity$2(user_settings,(1000));
+var step_size = new cljs.core.Keyword(null,"step-size","step-size",1545609922).cljs$core$IFn$_invoke$arity$2(user_settings,(20));
+var rotate_on = new cljs.core.Keyword(null,"rotate-on","rotate-on",-1282225937).cljs$core$IFn$_invoke$arity$2(user_settings,new cljs.core.Keyword(null,"mouse-dragged","mouse-dragged",-1220073441));
+var draw = new cljs.core.Keyword(null,"draw","draw",1358331674).cljs$core$IFn$_invoke$arity$2(options,((function (user_settings,pixels_in_360,step_size,rotate_on){
+return (function (state){
+return null;
+});})(user_settings,pixels_in_360,step_size,rotate_on))
+);
+var key_pressed = new cljs.core.Keyword(null,"key-pressed","key-pressed",-757100364).cljs$core$IFn$_invoke$arity$2(options,((function (user_settings,pixels_in_360,step_size,rotate_on,draw){
+return (function (state,_){
+return state;
+});})(user_settings,pixels_in_360,step_size,rotate_on,draw))
+);
+var rotate_on_fn = rotate_on.call(null,options,((function (user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed){
+return (function (state,_){
+return state;
+});})(user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed))
+);
+var setup = new cljs.core.Keyword(null,"setup","setup",1987730512).cljs$core$IFn$_invoke$arity$2(options,((function (user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn){
+return (function (){
+return cljs.core.PersistentArrayMap.EMPTY;
+});})(user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn))
+);
+return cljs.core.assoc.call(null,options,new cljs.core.Keyword(null,"setup","setup",1987730512),cljs.core.partial.call(null,quil.middlewares.navigation_3d.setup_3d_nav,setup,user_settings),new cljs.core.Keyword(null,"draw","draw",1358331674),((function (user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn,setup){
+return (function (state){
+quil.middlewares.navigation_3d.assert_state_has_navigation.call(null,state);
+
+var map__8946_8957 = new cljs.core.Keyword(null,"navigation-3d","navigation-3d",682305301).cljs$core$IFn$_invoke$arity$1(state);
+var map__8946_8958__$1 = ((((!((map__8946_8957 == null)))?((((map__8946_8957.cljs$lang$protocol_mask$partition0$ & (64))) || ((cljs.core.PROTOCOL_SENTINEL === map__8946_8957.cljs$core$ISeq$)))?true:false):false))?cljs.core.apply.call(null,cljs.core.hash_map,map__8946_8957):map__8946_8957);
+var vec__8947_8959 = cljs.core.get.call(null,map__8946_8958__$1,new cljs.core.Keyword(null,"straight","straight",-1252567854));
+var c_x_8960 = cljs.core.nth.call(null,vec__8947_8959,(0),null);
+var c_y_8961 = cljs.core.nth.call(null,vec__8947_8959,(1),null);
+var c_z_8962 = cljs.core.nth.call(null,vec__8947_8959,(2),null);
+var vec__8950_8963 = cljs.core.get.call(null,map__8946_8958__$1,new cljs.core.Keyword(null,"up","up",-269712113));
+var u_x_8964 = cljs.core.nth.call(null,vec__8950_8963,(0),null);
+var u_y_8965 = cljs.core.nth.call(null,vec__8950_8963,(1),null);
+var u_z_8966 = cljs.core.nth.call(null,vec__8950_8963,(2),null);
+var vec__8953_8967 = cljs.core.get.call(null,map__8946_8958__$1,new cljs.core.Keyword(null,"position","position",-2011731912));
+var p_x_8968 = cljs.core.nth.call(null,vec__8953_8967,(0),null);
+var p_y_8969 = cljs.core.nth.call(null,vec__8953_8967,(1),null);
+var p_z_8970 = cljs.core.nth.call(null,vec__8953_8967,(2),null);
+quil.core.camera.call(null,p_x_8968,p_y_8969,p_z_8970,(p_x_8968 + c_x_8960),(p_y_8969 + c_y_8961),(p_z_8970 + c_z_8962),u_x_8964,u_y_8965,u_z_8966);
+
+return draw.call(null,state);
+});})(user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn,setup))
+,new cljs.core.Keyword(null,"key-pressed","key-pressed",-757100364),((function (user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn,setup){
+return (function (state,event){
+return key_pressed.call(null,quil.middlewares.navigation_3d.move.call(null,state,event,step_size),event);
+});})(user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn,setup))
+,rotate_on,((function (user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn,setup){
+return (function (state,event){
+return rotate_on_fn.call(null,quil.middlewares.navigation_3d.rotate.call(null,state,event,pixels_in_360),event);
+});})(user_settings,pixels_in_360,step_size,rotate_on,draw,key_pressed,rotate_on_fn,setup))
+);
+});
+
+//# sourceMappingURL=navigation_3d.js.map

viz/out/quil/sketch.cljs

@@ -0,0 +1,128 @@
+(ns quil.sketch
+  (:require [quil.util :as u :include-macros true]
+            [quil.middlewares.deprecated-options :as do]
+            [goog.dom :as dom]
+            [goog.events :as events]
+            [goog.events.EventType :as EventType])
+  (:require-macros [quil.sketch]))
+
+(def ^:dynamic
+  *applet* nil)
+
+(defn current-applet [] *applet*)
+
+(u/generate-quil-constants :cljs
+  rendering-modes (:java2d :p2d :p3d :opengl))
+
+(defn resolve-renderer [mode]
+  (u/resolve-constant-key mode rendering-modes))
+
+(defn size
+  ([width height]
+    (.size (current-applet) (int width) (int height)))
+
+  ([width height mode]
+    (.size (current-applet) (int width) (int height) (u/resolve-constant-key mode rendering-modes))))
+
+(defn- bind-handlers [prc opts]
+  (doseq [[processing-name quil-name] {:setup :setup
+                                       :draw :draw
+
+                                       :keyPressed :key-pressed
+                                       :keyReleased :key-released
+                                       :keyTyped :key-typed
+
+                                       :mouseClicked :mouse-clicked
+                                       :mouseDragged :mouse-dragged
+                                       :mouseMoved :mouse-moved
+                                       :mousePressed :mouse-pressed
+                                       :mouseReleased :mouse-released
+                                       :mouseOut :mouse-exited
+                                       :mouseOver :mouse-entered
+                                       :mouseScrolled :mouse-wheel}]
+        (when-let [handler (opts quil-name)]
+          (aset prc (name processing-name)
+                (fn []
+                  (quil.sketch/with-sketch prc
+                    (handler)))))))
+
+(defn make-sketch [options]
+  (let [opts            (->> (:middleware options [])
+                          (cons do/deprecated-options)
+                          (apply comp)
+                          (#(% options))
+                          (merge {:size [500 300]}))
+
+        sketch-size     (or (:size opts) [200 200])
+        renderer        (:renderer opts)
+        features        (set (:features opts))
+
+        setup (fn []
+                (->> (if renderer [renderer] [])
+                     (concat sketch-size)
+                     (apply size))
+                (when (:settings opts) ((:settings opts)))
+                (when (:setup opts) ((:setup opts))))
+        mouse-wheel (when (:mouse-wheel opts)
+                      ;; -1 need for compability with Clojure version
+                      #((:mouse-wheel opts) (* -1 (.-mouseScroll *applet*))))
+
+        opts (assoc opts
+                    :setup setup
+                    :mouse-wheel mouse-wheel)
+        attach-function (fn [prc]
+                          (bind-handlers prc opts)
+                          (set! (.-quil prc) (atom nil))
+                          (set! (.-target-frame-rate prc) (atom 60)))
+        sketch (js/Processing.Sketch. attach-function)]
+    (when (contains? features :global-key-events)
+      (aset (aget sketch "options") "globalKeyEvents" true))
+    sketch))
+
+(defn destroy-previous-sketch [host-elem]
+  (when-let [proc-obj (.-processing-obj host-elem)]
+    (.exit proc-obj)))
+
+(defn sketch [& opts]
+  (let [opts-map (apply hash-map opts)
+        host-elem (dom/getElement (:host opts-map))
+        renderer (or (:renderer opts-map) :p2d)]
+    (if host-elem
+      (do
+        (if (.-processing-context host-elem)
+          (when-not (= renderer (.-processing-context host-elem))
+            (.warn js/console "WARNING: Using different context on one canvas!"))
+          (set! (.-processing-context host-elem) renderer))
+        (destroy-previous-sketch host-elem)
+        (set! (.-processing-obj host-elem)
+              (js/Processing. host-elem (make-sketch opts-map))))
+      (.error js/console "ERROR: Cannot create sketch. :host is not specified."))))
+
+(def sketch-init-list (atom (list )))
+
+(defn empty-body? []
+  (let [child (.-childNodes (.-body js/document))]
+    ; seems hacky, we should come up with better way of
+    ; checking whether body is empty or not
+    (<= (.-length child) 1)))
+
+(defn add-canvas [canvas-id]
+  (let [canvas (.createElement js/document "canvas")]
+    (.setAttribute canvas "id" canvas-id)
+    (.appendChild (.-body js/document) canvas)))
+
+(defn init-sketches []
+  (let [add-elem? (empty-body?)]
+    (doseq [sk @sketch-init-list]
+      (when add-elem?
+        (add-canvas (:host-id sk)))
+      ((:fn sk))))
+  (reset! sketch-init-list []))
+
+(defn add-sketch-to-init-list [sk]
+  (swap! sketch-init-list conj sk)
+  ; if page already loaded immediately init sketch we just added
+  (when (= (.-readyState js/document) "complete")
+    (init-sketches)))
+
+(events/listenOnce js/window EventType/LOAD init-sketches)

viz/out/quil/sketch.js

@@ -0,0 +1,348 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('quil.sketch');
+goog.require('cljs.core');
+goog.require('quil.util');
+goog.require('quil.middlewares.deprecated_options');
+goog.require('goog.dom');
+goog.require('goog.events');
+goog.require('goog.events.EventType');
+quil.sketch._STAR_applet_STAR_ = null;
+quil.sketch.current_applet = (function quil$sketch$current_applet(){
+return quil.sketch._STAR_applet_STAR_;
+});
+quil.sketch.rendering_modes = new cljs.core.PersistentArrayMap(null, 4, [new cljs.core.Keyword(null,"java2d","java2d",166099237),(Processing.prototype.PConstants["JAVA2D"]),new cljs.core.Keyword(null,"p2d","p2d",-2106175755),(Processing.prototype.PConstants["P2D"]),new cljs.core.Keyword(null,"p3d","p3d",-850380194),(Processing.prototype.PConstants["P3D"]),new cljs.core.Keyword(null,"opengl","opengl",-614998103),(Processing.prototype.PConstants["OPENGL"])], null);
+quil.sketch.resolve_renderer = (function quil$sketch$resolve_renderer(mode){
+return quil.util.resolve_constant_key.call(null,mode,quil.sketch.rendering_modes);
+});
+quil.sketch.size = (function quil$sketch$size(var_args){
+var args8189 = [];
+var len__7927__auto___8192 = arguments.length;
+var i__7928__auto___8193 = (0);
+while(true){
+if((i__7928__auto___8193 < len__7927__auto___8192)){
+args8189.push((arguments[i__7928__auto___8193]));
+
+var G__8194 = (i__7928__auto___8193 + (1));
+i__7928__auto___8193 = G__8194;
+continue;
+} else {
+}
+break;
+}
+
+var G__8191 = args8189.length;
+switch (G__8191) {
+case 2:
+return quil.sketch.size.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+case 3:
+return quil.sketch.size.cljs$core$IFn$_invoke$arity$3((arguments[(0)]),(arguments[(1)]),(arguments[(2)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args8189.length)].join('')));
+
+}
+});
+
+quil.sketch.size.cljs$core$IFn$_invoke$arity$2 = (function (width,height){
+return quil.sketch.current_applet.call(null).size((width | (0)),(height | (0)));
+});
+
+quil.sketch.size.cljs$core$IFn$_invoke$arity$3 = (function (width,height,mode){
+return quil.sketch.current_applet.call(null).size((width | (0)),(height | (0)),quil.util.resolve_constant_key.call(null,mode,quil.sketch.rendering_modes));
+});
+
+quil.sketch.size.cljs$lang$maxFixedArity = 3;
+
+quil.sketch.bind_handlers = (function quil$sketch$bind_handlers(prc,opts){
+var seq__8208 = cljs.core.seq.call(null,cljs.core.PersistentHashMap.fromArrays([new cljs.core.Keyword(null,"keyPressed","keyPressed",1791025256),new cljs.core.Keyword(null,"mouseOut","mouseOut",-386669045),new cljs.core.Keyword(null,"mouseScrolled","mouseScrolled",31878252),new cljs.core.Keyword(null,"mouseDragged","mouseDragged",129975181),new cljs.core.Keyword(null,"setup","setup",1987730512),new cljs.core.Keyword(null,"keyReleased","keyReleased",541714964),new cljs.core.Keyword(null,"mouseClicked","mouseClicked",1764302965),new cljs.core.Keyword(null,"mouseReleased","mouseReleased",1116234838),new cljs.core.Keyword(null,"mousePressed","mousePressed",1776186454),new cljs.core.Keyword(null,"mouseMoved","mouseMoved",-1936954058),new cljs.core.Keyword(null,"mouseOver","mouseOver",-1334461930),new cljs.core.Keyword(null,"keyTyped","keyTyped",1437329399),new cljs.core.Keyword(null,"draw","draw",1358331674)],[new cljs.core.Keyword(null,"key-pressed","key-pressed",-757100364),new cljs.core.Keyword(null,"mouse-exited","mouse-exited",-483205244),new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439),new cljs.core.Keyword(null,"mouse-dragged","mouse-dragged",-1220073441),new cljs.core.Keyword(null,"setup","setup",1987730512),new cljs.core.Keyword(null,"key-released","key-released",215919828),new cljs.core.Keyword(null,"mouse-clicked","mouse-clicked",-199339421),new cljs.core.Keyword(null,"mouse-released","mouse-released",-664480061),new cljs.core.Keyword(null,"mouse-pressed","mouse-pressed",736955536),new cljs.core.Keyword(null,"mouse-moved","mouse-moved",-1918152310),new cljs.core.Keyword(null,"mouse-entered","mouse-entered",811350322),new cljs.core.Keyword(null,"key-typed","key-typed",-876037597),new cljs.core.Keyword(null,"draw","draw",1358331674)]));
+var chunk__8209 = null;
+var count__8210 = (0);
+var i__8211 = (0);
+while(true){
+if((i__8211 < count__8210)){
+var vec__8212 = cljs.core._nth.call(null,chunk__8209,i__8211);
+var processing_name = cljs.core.nth.call(null,vec__8212,(0),null);
+var quil_name = cljs.core.nth.call(null,vec__8212,(1),null);
+var temp__4657__auto___8220 = opts.call(null,quil_name);
+if(cljs.core.truth_(temp__4657__auto___8220)){
+var handler_8221 = temp__4657__auto___8220;
+(prc[cljs.core.name.call(null,processing_name)] = ((function (seq__8208,chunk__8209,count__8210,i__8211,handler_8221,temp__4657__auto___8220,vec__8212,processing_name,quil_name){
+return (function (){
+var _STAR_applet_STAR_8215 = quil.sketch._STAR_applet_STAR_;
+quil.sketch._STAR_applet_STAR_ = prc;
+
+try{return handler_8221.call(null);
+}finally {quil.sketch._STAR_applet_STAR_ = _STAR_applet_STAR_8215;
+}});})(seq__8208,chunk__8209,count__8210,i__8211,handler_8221,temp__4657__auto___8220,vec__8212,processing_name,quil_name))
+);
+} else {
+}
+
+var G__8222 = seq__8208;
+var G__8223 = chunk__8209;
+var G__8224 = count__8210;
+var G__8225 = (i__8211 + (1));
+seq__8208 = G__8222;
+chunk__8209 = G__8223;
+count__8210 = G__8224;
+i__8211 = G__8225;
+continue;
+} else {
+var temp__4657__auto__ = cljs.core.seq.call(null,seq__8208);
+if(temp__4657__auto__){
+var seq__8208__$1 = temp__4657__auto__;
+if(cljs.core.chunked_seq_QMARK_.call(null,seq__8208__$1)){
+var c__7633__auto__ = cljs.core.chunk_first.call(null,seq__8208__$1);
+var G__8226 = cljs.core.chunk_rest.call(null,seq__8208__$1);
+var G__8227 = c__7633__auto__;
+var G__8228 = cljs.core.count.call(null,c__7633__auto__);
+var G__8229 = (0);
+seq__8208 = G__8226;
+chunk__8209 = G__8227;
+count__8210 = G__8228;
+i__8211 = G__8229;
+continue;
+} else {
+var vec__8216 = cljs.core.first.call(null,seq__8208__$1);
+var processing_name = cljs.core.nth.call(null,vec__8216,(0),null);
+var quil_name = cljs.core.nth.call(null,vec__8216,(1),null);
+var temp__4657__auto___8230__$1 = opts.call(null,quil_name);
+if(cljs.core.truth_(temp__4657__auto___8230__$1)){
+var handler_8231 = temp__4657__auto___8230__$1;
+(prc[cljs.core.name.call(null,processing_name)] = ((function (seq__8208,chunk__8209,count__8210,i__8211,handler_8231,temp__4657__auto___8230__$1,vec__8216,processing_name,quil_name,seq__8208__$1,temp__4657__auto__){
+return (function (){
+var _STAR_applet_STAR_8219 = quil.sketch._STAR_applet_STAR_;
+quil.sketch._STAR_applet_STAR_ = prc;
+
+try{return handler_8231.call(null);
+}finally {quil.sketch._STAR_applet_STAR_ = _STAR_applet_STAR_8219;
+}});})(seq__8208,chunk__8209,count__8210,i__8211,handler_8231,temp__4657__auto___8230__$1,vec__8216,processing_name,quil_name,seq__8208__$1,temp__4657__auto__))
+);
+} else {
+}
+
+var G__8232 = cljs.core.next.call(null,seq__8208__$1);
+var G__8233 = null;
+var G__8234 = (0);
+var G__8235 = (0);
+seq__8208 = G__8232;
+chunk__8209 = G__8233;
+count__8210 = G__8234;
+i__8211 = G__8235;
+continue;
+}
+} else {
+return null;
+}
+}
+break;
+}
+});
+quil.sketch.make_sketch = (function quil$sketch$make_sketch(options){
+var opts = cljs.core.merge.call(null,new cljs.core.PersistentArrayMap(null, 1, [new cljs.core.Keyword(null,"size","size",1098693007),new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [(500),(300)], null)], null),(function (p1__8236_SHARP_){
+return p1__8236_SHARP_.call(null,options);
+}).call(null,cljs.core.apply.call(null,cljs.core.comp,cljs.core.cons.call(null,quil.middlewares.deprecated_options.deprecated_options,new cljs.core.Keyword(null,"middleware","middleware",1462115504).cljs$core$IFn$_invoke$arity$2(options,cljs.core.PersistentVector.EMPTY)))));
+var sketch_size = (function (){var or__6814__auto__ = new cljs.core.Keyword(null,"size","size",1098693007).cljs$core$IFn$_invoke$arity$1(opts);
+if(cljs.core.truth_(or__6814__auto__)){
+return or__6814__auto__;
+} else {
+return new cljs.core.PersistentVector(null, 2, 5, cljs.core.PersistentVector.EMPTY_NODE, [(200),(200)], null);
+}
+})();
+var renderer = new cljs.core.Keyword(null,"renderer","renderer",336841071).cljs$core$IFn$_invoke$arity$1(opts);
+var features = cljs.core.set.call(null,new cljs.core.Keyword(null,"features","features",-1146962336).cljs$core$IFn$_invoke$arity$1(opts));
+var setup = ((function (opts,sketch_size,renderer,features){
+return (function (){
+cljs.core.apply.call(null,quil.sketch.size,cljs.core.concat.call(null,sketch_size,(cljs.core.truth_(renderer)?new cljs.core.PersistentVector(null, 1, 5, cljs.core.PersistentVector.EMPTY_NODE, [renderer], null):cljs.core.PersistentVector.EMPTY)));
+
+if(cljs.core.truth_(new cljs.core.Keyword(null,"settings","settings",1556144875).cljs$core$IFn$_invoke$arity$1(opts))){
+new cljs.core.Keyword(null,"settings","settings",1556144875).cljs$core$IFn$_invoke$arity$1(opts).call(null);
+} else {
+}
+
+if(cljs.core.truth_(new cljs.core.Keyword(null,"setup","setup",1987730512).cljs$core$IFn$_invoke$arity$1(opts))){
+return new cljs.core.Keyword(null,"setup","setup",1987730512).cljs$core$IFn$_invoke$arity$1(opts).call(null);
+} else {
+return null;
+}
+});})(opts,sketch_size,renderer,features))
+;
+var mouse_wheel = (cljs.core.truth_(new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439).cljs$core$IFn$_invoke$arity$1(opts))?((function (opts,sketch_size,renderer,features,setup){
+return (function (){
+return new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439).cljs$core$IFn$_invoke$arity$1(opts).call(null,((-1) * quil.sketch._STAR_applet_STAR_.mouseScroll));
+});})(opts,sketch_size,renderer,features,setup))
+:null);
+var opts__$1 = cljs.core.assoc.call(null,opts,new cljs.core.Keyword(null,"setup","setup",1987730512),setup,new cljs.core.Keyword(null,"mouse-wheel","mouse-wheel",1811662439),mouse_wheel);
+var attach_function = ((function (opts,sketch_size,renderer,features,setup,mouse_wheel,opts__$1){
+return (function (prc){
+quil.sketch.bind_handlers.call(null,prc,opts__$1);
+
+prc.quil = cljs.core.atom.call(null,null);
+
+return prc.target_frame_rate = cljs.core.atom.call(null,(60));
+});})(opts,sketch_size,renderer,features,setup,mouse_wheel,opts__$1))
+;
+var sketch = (new Processing.Sketch(attach_function));
+if(cljs.core.contains_QMARK_.call(null,features,new cljs.core.Keyword(null,"global-key-events","global-key-events",335064944))){
+((sketch["options"])["globalKeyEvents"] = true);
+} else {
+}
+
+return sketch;
+});
+quil.sketch.destroy_previous_sketch = (function quil$sketch$destroy_previous_sketch(host_elem){
+var temp__4657__auto__ = host_elem.processing_obj;
+if(cljs.core.truth_(temp__4657__auto__)){
+var proc_obj = temp__4657__auto__;
+return proc_obj.exit();
+} else {
+return null;
+}
+});
+quil.sketch.sketch = (function quil$sketch$sketch(var_args){
+var args__7934__auto__ = [];
+var len__7927__auto___8238 = arguments.length;
+var i__7928__auto___8239 = (0);
+while(true){
+if((i__7928__auto___8239 < len__7927__auto___8238)){
+args__7934__auto__.push((arguments[i__7928__auto___8239]));
+
+var G__8240 = (i__7928__auto___8239 + (1));
+i__7928__auto___8239 = G__8240;
+continue;
+} else {
+}
+break;
+}
+
+var argseq__7935__auto__ = ((((0) < args__7934__auto__.length))?(new cljs.core.IndexedSeq(args__7934__auto__.slice((0)),(0),null)):null);
+return quil.sketch.sketch.cljs$core$IFn$_invoke$arity$variadic(argseq__7935__auto__);
+});
+
+quil.sketch.sketch.cljs$core$IFn$_invoke$arity$variadic = (function (opts){
+var opts_map = cljs.core.apply.call(null,cljs.core.hash_map,opts);
+var host_elem = goog.dom.getElement(new cljs.core.Keyword(null,"host","host",-1558485167).cljs$core$IFn$_invoke$arity$1(opts_map));
+var renderer = (function (){var or__6814__auto__ = new cljs.core.Keyword(null,"renderer","renderer",336841071).cljs$core$IFn$_invoke$arity$1(opts_map);
+if(cljs.core.truth_(or__6814__auto__)){
+return or__6814__auto__;
+} else {
+return new cljs.core.Keyword(null,"p2d","p2d",-2106175755);
+}
+})();
+if(cljs.core.truth_(host_elem)){
+if(cljs.core.truth_(host_elem.processing_context)){
+if(cljs.core._EQ_.call(null,renderer,host_elem.processing_context)){
+} else {
+console.warn("WARNING: Using different context on one canvas!");
+}
+} else {
+host_elem.processing_context = renderer;
+}
+
+quil.sketch.destroy_previous_sketch.call(null,host_elem);
+
+return host_elem.processing_obj = (new Processing(host_elem,quil.sketch.make_sketch.call(null,opts_map)));
+} else {
+return console.error("ERROR: Cannot create sketch. :host is not specified.");
+}
+});
+
+quil.sketch.sketch.cljs$lang$maxFixedArity = (0);
+
+quil.sketch.sketch.cljs$lang$applyTo = (function (seq8237){
+return quil.sketch.sketch.cljs$core$IFn$_invoke$arity$variadic(cljs.core.seq.call(null,seq8237));
+});
+
+quil.sketch.sketch_init_list = cljs.core.atom.call(null,cljs.core.List.EMPTY);
+quil.sketch.empty_body_QMARK_ = (function quil$sketch$empty_body_QMARK_(){
+var child = document.body.childNodes;
+return (child.length <= (1));
+});
+quil.sketch.add_canvas = (function quil$sketch$add_canvas(canvas_id){
+var canvas = document.createElement("canvas");
+canvas.setAttribute("id",canvas_id);
+
+return document.body.appendChild(canvas);
+});
+quil.sketch.init_sketches = (function quil$sketch$init_sketches(){
+var add_elem_QMARK__8249 = quil.sketch.empty_body_QMARK_.call(null);
+var seq__8245_8250 = cljs.core.seq.call(null,cljs.core.deref.call(null,quil.sketch.sketch_init_list));
+var chunk__8246_8251 = null;
+var count__8247_8252 = (0);
+var i__8248_8253 = (0);
+while(true){
+if((i__8248_8253 < count__8247_8252)){
+var sk_8254 = cljs.core._nth.call(null,chunk__8246_8251,i__8248_8253);
+if(cljs.core.truth_(add_elem_QMARK__8249)){
+quil.sketch.add_canvas.call(null,new cljs.core.Keyword(null,"host-id","host-id",742376279).cljs$core$IFn$_invoke$arity$1(sk_8254));
+} else {
+}
+
+new cljs.core.Keyword(null,"fn","fn",-1175266204).cljs$core$IFn$_invoke$arity$1(sk_8254).call(null);
+
+var G__8255 = seq__8245_8250;
+var G__8256 = chunk__8246_8251;
+var G__8257 = count__8247_8252;
+var G__8258 = (i__8248_8253 + (1));
+seq__8245_8250 = G__8255;
+chunk__8246_8251 = G__8256;
+count__8247_8252 = G__8257;
+i__8248_8253 = G__8258;
+continue;
+} else {
+var temp__4657__auto___8259 = cljs.core.seq.call(null,seq__8245_8250);
+if(temp__4657__auto___8259){
+var seq__8245_8260__$1 = temp__4657__auto___8259;
+if(cljs.core.chunked_seq_QMARK_.call(null,seq__8245_8260__$1)){
+var c__7633__auto___8261 = cljs.core.chunk_first.call(null,seq__8245_8260__$1);
+var G__8262 = cljs.core.chunk_rest.call(null,seq__8245_8260__$1);
+var G__8263 = c__7633__auto___8261;
+var G__8264 = cljs.core.count.call(null,c__7633__auto___8261);
+var G__8265 = (0);
+seq__8245_8250 = G__8262;
+chunk__8246_8251 = G__8263;
+count__8247_8252 = G__8264;
+i__8248_8253 = G__8265;
+continue;
+} else {
+var sk_8266 = cljs.core.first.call(null,seq__8245_8260__$1);
+if(cljs.core.truth_(add_elem_QMARK__8249)){
+quil.sketch.add_canvas.call(null,new cljs.core.Keyword(null,"host-id","host-id",742376279).cljs$core$IFn$_invoke$arity$1(sk_8266));
+} else {
+}
+
+new cljs.core.Keyword(null,"fn","fn",-1175266204).cljs$core$IFn$_invoke$arity$1(sk_8266).call(null);
+
+var G__8267 = cljs.core.next.call(null,seq__8245_8260__$1);
+var G__8268 = null;
+var G__8269 = (0);
+var G__8270 = (0);
+seq__8245_8250 = G__8267;
+chunk__8246_8251 = G__8268;
+count__8247_8252 = G__8269;
+i__8248_8253 = G__8270;
+continue;
+}
+} else {
+}
+}
+break;
+}
+
+return cljs.core.reset_BANG_.call(null,quil.sketch.sketch_init_list,cljs.core.PersistentVector.EMPTY);
+});
+quil.sketch.add_sketch_to_init_list = (function quil$sketch$add_sketch_to_init_list(sk){
+cljs.core.swap_BANG_.call(null,quil.sketch.sketch_init_list,cljs.core.conj,sk);
+
+if(cljs.core._EQ_.call(null,document.readyState,"complete")){
+return quil.sketch.init_sketches.call(null);
+} else {
+return null;
+}
+});
+goog.events.listenOnce(window,goog.events.EventType.LOAD,quil.sketch.init_sketches);
+
+//# sourceMappingURL=sketch.js.map

viz/out/quil/util.cljc

@@ -0,0 +1,109 @@
+(ns ^{:doc "Utility fns"}
+  quil.util
+  (:require [clojure.string :as cstr]))
+
+(defn no-fn
+  "Function that does nothing."
+  [])
+
+#?(:clj
+   (defn callable? [value]
+     (or (fn? value)
+         (var? value))))
+
+#?(:clj
+   (defn absolute-path [path]
+     (-> (str path)
+         (java.io.File.)
+         (.getAbsolutePath))))
+
+#?(:clj
+   (defn int-like?
+     [val]
+     (let [t (type val)]
+       (or (= java.lang.Long t)
+           (= java.lang.Integer t)))))
+
+(defn resolve-constant-key
+  "Returns the val associated with key in mappings or key directly if it
+  is one of the vals in mappings. Otherwise throws an exception."
+  [key mappings]
+  (cond
+    (get mappings key)            (get mappings key)
+    (some #{key} (vals mappings)) key
+
+    :else                         (throw (#?(:clj Exception.
+                                             :cljs js/Error.)
+                                          (str "Expecting a keyword, got: " key ". Expected one of: " (vec (sort (keys mappings))))))))
+
+(defn- length-of-longest-key
+  "Returns the length of the longest key of map m. Assumes m's keys are strings
+   and returns 0 if map is empty:
+   (length-of-longest-key {\"foo\" 1 \"barr\" 2 \"bazzz\" 3}) ;=> 5
+   (length-of-longest-key {}) ;=> 0"
+  [m]
+  (or (last (sort (map #(.length %) (keys m))))
+      0))
+
+(defn- gen-padding
+  "Generates a padding string starting concatting s with len times pad:
+   (gen-padding \"\" 5 \"b\") ;=> \"bbbbb\"
+   May be called without starting string s in which case it defaults to the
+   empty string and also without pad in which case it defaults to a single space"
+  ([len] (gen-padding "" len " "))
+  ([len pad] (gen-padding "" len pad))
+  ([s len pad]
+     (if (> len 0)
+       (gen-padding (str s pad) (dec len) pad)
+       s)))
+
+(defn print-definition-list
+  [definitions]
+  (let [longest-key (length-of-longest-key definitions)]
+    (dorun
+     (map (fn [[k v]]
+            (let [len (.length k)
+                  diff (- longest-key len)
+                  pad (gen-padding diff)]
+              (println k pad "- " v)))
+          definitions))))
+
+(defn clj-compilation? []
+  #?(:clj
+     (not
+      (boolean
+       (when-let [n (find-ns 'cljs.analyzer)]
+         (when-let [v (ns-resolve n '*cljs-file*)]
+           @v))))
+     :cljs false))
+
+
+(defn prepare-quil-name [const-keyword]
+  (cstr/replace
+   (cstr/upper-case (name const-keyword))
+   #"-" "_"))
+
+(defn prepare-quil-clj-constants [constants]
+  (into {}
+        (map
+         #(vector % (symbol (str "PConstants/" (prepare-quil-name %))))
+         constants)))
+
+(defn prepare-quil-cljs-constants [constants]
+  (into {}
+        (map
+         #(vector % `(aget js/Processing.prototype.PConstants ~(prepare-quil-name %)))
+         constants)))
+
+(defn make-quil-constant-map [target const-map-name const-map]
+  `(def ^{:private true}
+     ~const-map-name
+     ~(if (= target :clj)
+        (prepare-quil-clj-constants const-map)
+        (prepare-quil-cljs-constants const-map))))
+
+(defmacro generate-quil-constants [target & opts]
+  `(do
+     ~@(map
+        #(make-quil-constant-map target (first %) (second %))
+        (partition 2 opts))))

viz/out/quil/util.js

@@ -0,0 +1,183 @@
+// Compiled by ClojureScript 1.9.473 {}
+goog.provide('quil.util');
+goog.require('cljs.core');
+goog.require('clojure.string');
+/**
+ * Function that does nothing.
+ */
+quil.util.no_fn = (function quil$util$no_fn(){
+return null;
+});
+/**
+ * Returns the val associated with key in mappings or key directly if it
+ *   is one of the vals in mappings. Otherwise throws an exception.
+ */
+quil.util.resolve_constant_key = (function quil$util$resolve_constant_key(key,mappings){
+if(cljs.core.truth_(cljs.core.get.call(null,mappings,key))){
+return cljs.core.get.call(null,mappings,key);
+} else {
+if(cljs.core.truth_(cljs.core.some.call(null,cljs.core.PersistentHashSet.createAsIfByAssoc([key], true),cljs.core.vals.call(null,mappings)))){
+return key;
+} else {
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Expecting a keyword, got: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(key),cljs.core.str.cljs$core$IFn$_invoke$arity$1(". Expected one of: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(cljs.core.vec.call(null,cljs.core.sort.call(null,cljs.core.keys.call(null,mappings))))].join('')));
+
+}
+}
+});
+/**
+ * Returns the length of the longest key of map m. Assumes m's keys are strings
+ * and returns 0 if map is empty:
+ * (length-of-longest-key {"foo" 1 "barr" 2 "bazzz" 3}) ;=> 5
+ * (length-of-longest-key {}) ;=> 0
+ */
+quil.util.length_of_longest_key = (function quil$util$length_of_longest_key(m){
+var or__6814__auto__ = cljs.core.last.call(null,cljs.core.sort.call(null,cljs.core.map.call(null,(function (p1__8122_SHARP_){
+return p1__8122_SHARP_.length();
+}),cljs.core.keys.call(null,m))));
+if(cljs.core.truth_(or__6814__auto__)){
+return or__6814__auto__;
+} else {
+return (0);
+}
+});
+/**
+ * Generates a padding string starting concatting s with len times pad:
+ * (gen-padding "" 5 "b") ;=> "bbbbb"
+ * May be called without starting string s in which case it defaults to the
+ * empty string and also without pad in which case it defaults to a single space
+ */
+quil.util.gen_padding = (function quil$util$gen_padding(var_args){
+var args8123 = [];
+var len__7927__auto___8126 = arguments.length;
+var i__7928__auto___8127 = (0);
+while(true){
+if((i__7928__auto___8127 < len__7927__auto___8126)){
+args8123.push((arguments[i__7928__auto___8127]));
+
+var G__8128 = (i__7928__auto___8127 + (1));
+i__7928__auto___8127 = G__8128;
+continue;
+} else {
+}
+break;
+}
+
+var G__8125 = args8123.length;
+switch (G__8125) {
+case 1:
+return quil.util.gen_padding.cljs$core$IFn$_invoke$arity$1((arguments[(0)]));
+
+break;
+case 2:
+return quil.util.gen_padding.cljs$core$IFn$_invoke$arity$2((arguments[(0)]),(arguments[(1)]));
+
+break;
+case 3:
+return quil.util.gen_padding.cljs$core$IFn$_invoke$arity$3((arguments[(0)]),(arguments[(1)]),(arguments[(2)]));
+
+break;
+default:
+throw (new Error([cljs.core.str.cljs$core$IFn$_invoke$arity$1("Invalid arity: "),cljs.core.str.cljs$core$IFn$_invoke$arity$1(args8123.length)].join('')));
+
+}
+});
+
+quil.util.gen_padding.cljs$core$IFn$_invoke$arity$1 = (function (len){
+return quil.util.gen_padding.call(null,"",len," ");
+});
+
+quil.util.gen_padding.cljs$core$IFn$_invoke$arity$2 = (function (len,pad){
+return quil.util.gen_padding.call(null,"",len,pad);
+});
+
+quil.util.gen_padding.cljs$core$IFn$_invoke$arity$3 = (function (s,len,pad){
+if((len > (0))){
+return quil.util.gen_padding.call(null,[cljs.core.str.cljs$core$IFn$_invoke$arity$1(s),cljs.core.str.cljs$core$IFn$_invoke$arity$1(pad)].join(''),(len - (1)),pad);
+} else {
+return s;
+}
+});
+
+quil.util.gen_padding.cljs$lang$maxFixedArity = 3;
+
+quil.util.print_definition_list = (function quil$util$print_definition_list(definitions){
+var longest_key = quil.util.length_of_longest_key.call(null,definitions);
+return cljs.core.dorun.call(null,cljs.core.map.call(null,((function (longest_key){
+return (function (p__8134){
+var vec__8135 = p__8134;
+var k = cljs.core.nth.call(null,vec__8135,(0),null);
+var v = cljs.core.nth.call(null,vec__8135,(1),null);
+var len = k.length();
+var diff = (longest_key - len);
+var pad = quil.util.gen_padding.call(null,diff);
+return cljs.core.println.call(null,k,pad,"- ",v);
+});})(longest_key))
+,definitions));
+});
+quil.util.clj_compilation_QMARK_ = (function quil$util$clj_compilation_QMARK_(){
+return false;
+});
+quil.util.prepare_quil_name = (function quil$util$prepare_quil_name(const_keyword){
+return clojure.string.replace.call(null,clojure.string.upper_case.call(null,cljs.core.name.call(null,const_keyword)),/-/,"_");
+});
+quil.util.prepare_quil_clj_constants = (function quil$util$prepare_quil_clj_constants(constants){
+return cljs.core.into.call(null,cljs.core.PersistentArrayMap.EMPTY,cljs.core.map.call(null,(function (p1__8138_SHARP_){
+return (new cljs.core.PersistentVector(null,2,(5),cljs.core.PersistentVector.EMPTY_NODE,[p1__8138_SHARP_,cljs.core.symbol.call(null,[cljs.core.str.cljs$core$IFn$_invoke$arity$1("PConstants/"),cljs.core.str.cljs$core$IFn$_invoke$arity$1(quil.util.prepare_quil_name.call(null,p1__8138_SHARP_))].join(''))],null));
+}),constants));
+});
+quil.util.prepare_quil_cljs_constants = (function quil$util$prepare_quil_cljs_constants(constants){
+return cljs.core.into.call(null,cljs.core.PersistentArrayMap.EMPTY,cljs.core.map.call(null,(function (p1__8139_SHARP_){
+return (new cljs.core.PersistentVector(null,2,(5),cljs.core.PersistentVector.EMPTY_NODE,[p1__8139_SHARP_,cljs.core.sequence.call(null,cljs.core.seq.call(null,cljs.core.concat.call(null,cljs.core._conj.call(null,cljs.core.List.EMPTY,new cljs.core.Symbol("cljs.core","aget","cljs.core/aget",6345791,null)),cljs.core._conj.call(null,cljs.core.List.EMPTY,new cljs.core.Symbol("js","Processing.prototype.PConstants","js/Processing.prototype.PConstants",2034048972,null)),(function (){var x__7656__auto__ = quil.util.prepare_quil_name.call(null,p1__8139_SHARP_);
+return cljs.core._conj.call(null,cljs.core.List.EMPTY,x__7656__auto__);
+})())))],null));
+}),constants));
+});
+quil.util.make_quil_constant_map = (function quil$util$make_quil_constant_map(target,const_map_name,const_map){
+return cljs.core.sequence.call(null,cljs.core.seq.call(null,cljs.core.concat.call(null,cljs.core._conj.call(null,cljs.core.List.EMPTY,new cljs.core.Symbol(null,"def","def",597100991,null)),(function (){var x__7656__auto__ = const_map_name;
+return cljs.core._conj.call(null,cljs.core.List.EMPTY,x__7656__auto__);
+})(),(function (){var x__7656__auto__ = ((cljs.core._EQ_.call(null,target,new cljs.core.Keyword(null,"clj","clj",-660495428)))?quil.util.prepare_quil_clj_constants.call(null,const_map):quil.util.prepare_quil_cljs_constants.call(null,const_map));
+return cljs.core._conj.call(null,cljs.core.List.EMPTY,x__7656__auto__);
+})())));
+});
+quil.util.generate_quil_constants = (function quil$util$generate_quil_constants(var_args){
+var args__7934__auto__ = [];
+var len__7927__auto___8145 = arguments.length;
+var i__7928__auto___8146 = (0);
+while(true){
+if((i__7928__auto___8146 < len__7927__auto___8145)){
+args__7934__auto__.push((arguments[i__7928__auto___8146]));
+
+var G__8147 = (i__7928__auto___8146 + (1));
+i__7928__auto___8146 = G__8147;
+continue;
+} else {
+}
+break;
+}
+
+var argseq__7935__auto__ = ((((3) < args__7934__auto__.length))?(new cljs.core.IndexedSeq(args__7934__auto__.slice((3)),(0),null)):null);
+return quil.util.generate_quil_constants.cljs$core$IFn$_invoke$arity$variadic((arguments[(0)]),(arguments[(1)]),(arguments[(2)]),argseq__7935__auto__);
+});
+
+quil.util.generate_quil_constants.cljs$core$IFn$_invoke$arity$variadic = (function (_AMPERSAND_form,_AMPERSAND_env,target,opts){
+return cljs.core.sequence.call(null,cljs.core.seq.call(null,cljs.core.concat.call(null,cljs.core._conj.call(null,cljs.core.List.EMPTY,new cljs.core.Symbol(null,"do","do",1686842252,null)),cljs.core.map.call(null,(function (p1__8140_SHARP_){
+return quil.util.make_quil_constant_map.call(null,target,cljs.core.first.call(null,p1__8140_SHARP_),cljs.core.second.call(null,p1__8140_SHARP_));
+}),cljs.core.partition.call(null,(2),opts)))));
+});
+
+quil.util.generate_quil_constants.cljs$lang$maxFixedArity = (3);
+
+quil.util.generate_quil_constants.cljs$lang$applyTo = (function (seq8141){
+var G__8142 = cljs.core.first.call(null,seq8141);
+var seq8141__$1 = cljs.core.next.call(null,seq8141);
+var G__8143 = cljs.core.first.call(null,seq8141__$1);
+var seq8141__$2 = cljs.core.next.call(null,seq8141__$1);
+var G__8144 = cljs.core.first.call(null,seq8141__$2);
+var seq8141__$3 = cljs.core.next.call(null,seq8141__$2);
+return quil.util.generate_quil_constants.cljs$core$IFn$_invoke$arity$variadic(G__8142,G__8143,G__8144,seq8141__$3);
+});
+
+
+quil.util.generate_quil_constants.cljs$lang$macro = true;
+
+//# sourceMappingURL=util.js.map

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viz/out/viz/core.cljs

@@ -0,0 +1,204 @@
+(ns viz.core
+  (:require [quil.core :as q :include-macros true]
+            [quil.middleware :as m]
+            [viz.forest :as forest]
+            [viz.grid :as grid]
+            [viz.ghost :as ghost]
+            [goog.string :as gstring]
+            [goog.string.format]
+            ;[gil.core :as gil]
+            ))
+
+(defn- debug [& args]
+  (.log js/console (clojure.string/join " " (map str args))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defn- window-partial [k]
+  (int (* (aget js/document "documentElement" k) 0.95)))
+
+(def window-size [ (min 1025 (window-partial "clientWidth"))
+                   (int (* (window-partial "clientHeight") 0.75))
+                   ])
+(def window-half-size (apply vector (map #(float (/ %1 2)) window-size)))
+
+(defn- new-state []
+  {:frame-rate 15
+   :exit-wait-frames 40
+   :tail-length 15
+   :frame 0
+   :gif-seconds 0
+   :grid-width 30 ; from the center
+   :ghost (-> (ghost/new-ghost grid/euclidean)
+              (ghost/new-active-node [0 0])
+              )
+   })
+
+(defn- curr-second [state]
+  (float (/ (:frame state) (:frame-rate state))))
+
+(defn- grid-size [state]
+  (let [h (int (* (window-size 1)
+                  (float (/ (:grid-width state) (window-size 0)))))]
+             [(:grid-width state) h]))
+
+(defn- positive [n] (if (> 0 n) (- n) n))
+
+(defn- spawn-chance [state]
+  (let [period-seconds 1
+        period-frames (* (:frame-rate state) period-seconds)]
+  (if (zero? (rem (:frame state) period-frames))
+    1 100)
+    ))
+
+  ;(let [period-seconds 1
+  ;      rad-per-second (float (/ (/ Math/PI 2) period-seconds))
+  ;      rad (* rad-per-second (curr-second state))
+  ;      chance-raw (positive (q/sin rad))
+  ;      ]
+  ;    (if (> chance-raw 0.97) 3 50)
+  ;  ))
+
+
+;(defn- mk-poss-fn [state]
+;  (let [chance (spawn-chance state)]
+;    (fn [pos adj-poss]
+;      (if (zero? (rand-int chance))
+;        adj-poss
+;        (take 1 (shuffle adj-poss))))
+;    ))
+
+(defn- mk-poss-fn [state]
+  (fn [pos adj-poss]
+    (take 2 (random-sample 0.6 adj-poss))))
+
+(defn setup []
+  (let [state (new-state)]
+    (q/frame-rate (:frame-rate state))
+    state))
+
+(defn- scale [state xy]
+  (map-indexed #(* %2 (float (/ (window-half-size %1)
+                                ((grid-size state) %1)))) xy))
+
+; each bound is a position vector
+(defn- in-bounds? [min-bound max-bound pos]
+  (let [pos-k (keep-indexed #(let [mini (min-bound %1)
+                                   maxi (max-bound %1)]
+                               (when (and (>= %2 mini) (<= %2 maxi)) %2)) pos)]
+    (= (count pos) (count pos-k))))
+
+(defn- quil-bounds [state buffer]
+  (let [[w h] (apply vector (map #(- % buffer) (grid-size state)))]
+    [[(- w) (- h)] [w h]]))
+
+(defn- ghost-incr [state]
+  (assoc state :ghost
+         (ghost/filter-active-nodes (ghost/incr (:ghost state) (mk-poss-fn state))
+                                    #(let [[minb maxb] (quil-bounds state 2)]
+                                       (in-bounds? minb maxb (:pos %1))))))
+
+(defn- ghost-expire-roots [state]
+  (if-not (< (:tail-length state) (:frame state)) state
+    (update-in state [:ghost] ghost/remove-roots)))
+
+(defn- maybe-exit [state]
+  (if (empty? (get-in state [:ghost :active-node-ids]))
+    (if (zero? (:exit-wait-frames state)) (new-state)
+      (update-in state [:exit-wait-frames] dec))
+    state))
+
+(defn update-state [state]
+  (-> state
+      (ghost-incr)
+      (ghost-expire-roots)
+      (update-in [:frame] inc)
+      (maybe-exit)))
+
+(defn- draw-ellipse [state pos size] ; size is [w h]
+  (let [scaled-pos (scale state pos)
+        scaled-size (map int (scale state size))]
+    (apply q/ellipse (concat scaled-pos scaled-size))))
+
+(defn- in-line? [& nodes]
+  (apply = (map #(apply map - %1)
+                (partition 2 1 (map :pos nodes)))))
+
+(defn draw-lines [state forest parent node]
+  "Draws the lines of all children leading from the node, recursively"
+  (q/stroke 0xFF000000)
+  (q/fill 0xFFFFFFFF)
+  (let [children (map #(forest/get-node forest %) (:child-ids node))]
+
+    (if-not parent
+      (doseq [child children] (draw-lines state forest node child))
+      (let [in-line-child (some #(if (in-line? parent node %) %) children)
+            ]
+        (doseq [child children]
+          (if (and in-line-child (= in-line-child child))
+            (draw-lines state forest parent child)
+            (draw-lines state forest node child)))
+        (when-not in-line-child
+          (apply q/line (apply concat
+                               (map #(scale state %)
+                                    (map :pos (list parent node))))))
+        ))
+
+    ; we also take the opportunity to draw the leaves
+    (when (empty? children)
+      (draw-ellipse state (:pos node) [0.3 0.3]))
+
+    ))
+
+(defn draw-state [state]
+  ; Clear the sketch by filling it with light-grey color.
+  (q/background 0xFFFFFFFF)
+  (q/with-translation [(/ (window-size 0) 2)
+                       (/ (window-size 1) 2)]
+    (let [lines (forest/lines (get-in state [:ghost :forest]))
+          leaves (forest/leaves (get-in state [:ghost :forest]))
+          active (ghost/active-nodes (:ghost state))
+          roots (forest/roots (get-in state [:ghost :forest]))
+          ]
+
+      (q/stroke 0xFF000000)
+      (doseq [root roots]
+        (draw-lines state (get-in state [:ghost :forest]) nil root))
+
+      (q/stroke 0xFF000000)
+      (q/fill 0xFF000000)
+      (doseq [active-node active]
+        (let [pos (:pos active-node)]
+          (draw-ellipse state pos [0.35 0.35])
+          ))
+
+      ))
+
+    ;(when-not (zero? (:gif-seconds state))
+    ;  (let [anim-frames (* (:gif-seconds state) (:frame-rate state))]
+    ;    (gil/save-animation "quil.gif" anim-frames 0)
+    ;    (when (> (:frame state) anim-frames) (q/exit))))
+
+    ;(q/text (clojure.string/join
+    ;          "\n"
+    ;          (list
+    ;            (gstring/format "frame:%d" (:frame state))
+    ;            (gstring/format "second:%f" (curr-second state))
+    ;            (gstring/format "spawn-chance:%d" (spawn-chance state))))
+    ;        30 30)
+  )
+
+(q/defsketch viz
+  :title ""
+  :host "viz"
+  :size window-size
+  ; setup function called only once, during sketch initialization.
+  :setup setup
+  ; update-state is called on each iteration before draw-state.
+  :update update-state
+  :draw draw-state
+  :features [:keep-on-top]
+  ; This sketch uses functional-mode middleware.
+  ; Check quil wiki for more info about middlewares and particularly
+  ; fun-mode.
+  :middleware [m/fun-mode])