+ distort images
+ drag an image into the browser window to modify it.
+ i oringinally set out to recreate ben dehaans uncured inkjet prints in javascript. what i ended up with looks completely different, but is still kind of fun to play with.
+ the script divides the image into a grid and uses the contrast of each cell to distort it.
+ this experiment was created by georg. you can follow him on twitter or explore the source code on github.
+
+
+
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+(function() {
+
+// test for native support
+var test = document.createElement('input');
+try {
+ test.type = 'range';
+ if (test.type == 'range')
+ return;
+} catch (e) {
+ return;
+}
+
+// test for required property support
+test.style.background = 'linear-gradient(red, red)';
+if (!test.style.backgroundImage || !('MozAppearance' in test.style) ||
+ !document.mozSetImageElement || !this.MutationObserver)
+ return;
+
+var scale;
+var isMac = navigator.platform == 'MacIntel';
+var thumb = {
+ radius: isMac ? 9 : 6,
+ width: isMac ? 22 : 12,
+ height: isMac ? 16 : 20
+};
+var track = 'linear-gradient(transparent ' + (isMac ?
+ '6px, #999 6px, #999 7px, #ccc 8px, #bbb 9px, #bbb 10px, transparent 10px' :
+ '9px, #999 9px, #bbb 10px, #fff 11px, transparent 11px') +
+ ', transparent)';
+var styles = {
+ 'min-width': thumb.width + 'px',
+ 'min-height': thumb.height + 'px',
+ 'max-height': thumb.height + 'px',
+ padding: '0 0 ' + (isMac ? '2px' : '1px'),
+ border: 0,
+ 'border-radius': 0,
+ cursor: 'default',
+ 'text-indent': '-999999px' // -moz-user-select: none; breaks mouse capture
+};
+var options = {
+ attributes: true,
+ attributeFilter: ['min', 'max', 'step', 'value']
+};
+var forEach = Array.prototype.forEach;
+var onInput = document.createEvent('HTMLEvents');
+onInput.initEvent('input', true, false);
+var onChange = document.createEvent('HTMLEvents');
+onChange.initEvent('change', true, false);
+
+if (document.readyState == 'loading')
+ document.addEventListener('DOMContentLoaded', initialize, true);
+else
+ initialize();
+
+function initialize() {
+ // create initial sliders
+ forEach.call(document.querySelectorAll('input[type=range]'), transform);
+ // create sliders on-the-fly
+ new MutationObserver(function(mutations) {
+ mutations.forEach(function(mutation) {
+ if (mutation.addedNodes)
+ forEach.call(mutation.addedNodes, function(node) {
+ check(node);
+ if (node.childElementCount)
+ forEach.call(node.querySelectorAll('input'), check);
+ });
+ });
+ }).observe(document, { childList: true, subtree: true });
+}
+
+function check(input) {
+ if (input.localName == 'input' && input.type != 'range' &&
+ input.getAttribute('type') == 'range')
+ transform(input);
+}
+
+function transform(slider) {
+
+ var isValueSet, areAttrsSet, isChanged, isClick, prevValue, rawValue, prevX;
+ var min, max, step, range, value = slider.value;
+
+ // lazily create shared slider affordance
+ if (!scale) {
+ scale = document.body.appendChild(document.createElement('hr'));
+ style(scale, {
+ '-moz-appearance': isMac ? 'scale-horizontal' : 'scalethumb-horizontal',
+ display: 'block',
+ visibility: 'visible',
+ opacity: 1,
+ position: 'fixed',
+ top: '-999999px'
+ });
+ document.mozSetImageElement('__sliderthumb__', scale);
+ }
+
+ // reimplement value and type properties
+ var getValue = function() { return '' + value; };
+ var setValue = function setValue(val) {
+ value = '' + val;
+ isValueSet = true;
+ draw();
+ delete slider.value;
+ slider.value = value;
+ Object.defineProperty(slider, 'value', {
+ get: getValue,
+ set: setValue
+ });
+ };
+ Object.defineProperty(slider, 'value', {
+ get: getValue,
+ set: setValue
+ });
+ Object.defineProperty(slider, 'type', {
+ get: function() { return 'range'; }
+ });
+
+ // sync properties with attributes
+ ['min', 'max', 'step'].forEach(function(prop) {
+ if (slider.hasAttribute(prop))
+ areAttrsSet = true;
+ Object.defineProperty(slider, prop, {
+ get: function() { return this.hasAttribute(prop) ? this.getAttribute(prop) : ''; },
+ set: function(val) { val === null ? this.removeAttribute(prop) : this.setAttribute(prop, val); }
+ });
+ });
+
+ // initialize slider
+ slider.readOnly = true;
+ style(slider, styles);
+ update();
+
+ new MutationObserver(function(mutations) {
+ mutations.forEach(function(mutation) {
+ if (mutation.attributeName != 'value') {
+ update();
+ areAttrsSet = true;
+ }
+ // note that value attribute only sets initial value
+ else if (!isValueSet) {
+ value = slider.getAttribute('value');
+ draw();
+ }
+ });
+ }).observe(slider, options);
+
+ slider.addEventListener('mousedown', onDragStart, true);
+ slider.addEventListener('keydown', onKeyDown, true);
+ slider.addEventListener('focus', onFocus, true);
+ slider.addEventListener('blur', onBlur, true);
+
+ function onDragStart(e) {
+ isClick = true;
+ setTimeout(function() { isClick = false; }, 0);
+ if (e.button || !range)
+ return;
+ var width = parseFloat(getComputedStyle(this, 0).width);
+ var multiplier = (width - thumb.width) / range;
+ if (!multiplier)
+ return;
+ // distance between click and center of thumb
+ var dev = e.clientX - this.getBoundingClientRect().left - thumb.width / 2 -
+ (value - min) * multiplier;
+ // if click was not on thumb, move thumb to click location
+ if (Math.abs(dev) > thumb.radius) {
+ isChanged = true;
+ this.value -= -dev / multiplier;
+ }
+ rawValue = value;
+ prevX = e.clientX;
+ this.addEventListener('mousemove', onDrag, true);
+ this.addEventListener('mouseup', onDragEnd, true);
+ }
+
+ function onDrag(e) {
+ var width = parseFloat(getComputedStyle(this, 0).width);
+ var multiplier = (width - thumb.width) / range;
+ if (!multiplier)
+ return;
+ rawValue += (e.clientX - prevX) / multiplier;
+ prevX = e.clientX;
+ isChanged = true;
+ this.value = rawValue;
+ }
+
+ function onDragEnd() {
+ this.removeEventListener('mousemove', onDrag, true);
+ this.removeEventListener('mouseup', onDragEnd, true);
+ slider.dispatchEvent(onChange);
+ }
+
+ function onKeyDown(e) {
+ if (e.keyCode > 36 && e.keyCode < 41) { // 37-40: left, up, right, down
+ onFocus.call(this);
+ isChanged = true;
+ this.value = value + (e.keyCode == 38 || e.keyCode == 39 ? step : -step);
+ }
+ }
+
+ function onFocus() {
+ if (!isClick)
+ this.style.boxShadow = !isMac ? '0 0 0 2px #fb0' :
+ 'inset 0 0 20px rgba(0,127,255,.1), 0 0 1px rgba(0,127,255,.4)';
+ }
+
+ function onBlur() {
+ this.style.boxShadow = '';
+ }
+
+ // determines whether value is valid number in attribute form
+ function isAttrNum(value) {
+ return !isNaN(value) && +value == parseFloat(value);
+ }
+
+ // validates min, max, and step attributes and redraws
+ function update() {
+ min = isAttrNum(slider.min) ? +slider.min : 0;
+ max = isAttrNum(slider.max) ? +slider.max : 100;
+ if (max < min)
+ max = min > 100 ? min : 100;
+ step = isAttrNum(slider.step) && slider.step > 0 ? +slider.step : 1;
+ range = max - min;
+ draw(true);
+ }
+
+ // recalculates value property
+ function calc() {
+ if (!isValueSet && !areAttrsSet)
+ value = slider.getAttribute('value');
+ if (!isAttrNum(value))
+ value = (min + max) / 2;;
+ // snap to step intervals (WebKit sometimes does not - bug?)
+ value = Math.round((value - min) / step) * step + min;
+ if (value < min)
+ value = min;
+ else if (value > max)
+ value = min + ~~(range / step) * step;
+ }
+
+ // renders slider using CSS background ;)
+ function draw(attrsModified) {
+ calc();
+ if (isChanged && value != prevValue)
+ slider.dispatchEvent(onInput);
+ isChanged = false;
+ if (!attrsModified && value == prevValue)
+ return;
+ prevValue = value;
+ var position = range ? (value - min) / range * 100 : 0;
+ var bg = '-moz-element(#__sliderthumb__) ' + position + '% no-repeat, ';
+ style(slider, { background: bg + track });
+ }
+
+}
+
+function style(element, styles) {
+ for (var prop in styles)
+ element.style.setProperty(prop, styles[prop], 'important');
+}
+
+})();
diff --git a/scripts/lib/raf.js b/scripts/lib/raf.js
new file mode 100644
index 0000000..370894e
--- /dev/null
+++ b/scripts/lib/raf.js
@@ -0,0 +1,31 @@
+// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
+// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
+
+// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel
+
+// MIT license
+
+(function() {
+ var lastTime = 0;
+ var vendors = ['ms', 'moz', 'webkit', 'o'];
+ for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
+ window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
+ window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame']
+ || window[vendors[x]+'CancelRequestAnimationFrame'];
+ }
+
+ if (!window.requestAnimationFrame)
+ window.requestAnimationFrame = function(callback, element) {
+ var currTime = new Date().getTime();
+ var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+ var id = window.setTimeout(function() { callback(currTime + timeToCall); },
+ timeToCall);
+ lastTime = currTime + timeToCall;
+ return id;
+ };
+
+ if (!window.cancelAnimationFrame)
+ window.cancelAnimationFrame = function(id) {
+ clearTimeout(id);
+ };
+}());
\ No newline at end of file
diff --git a/scripts/lib/require-2.1.4.js b/scripts/lib/require-2.1.4.js
new file mode 100644
index 0000000..5b26875
--- /dev/null
+++ b/scripts/lib/require-2.1.4.js
@@ -0,0 +1,2000 @@
+/** vim: et:ts=4:sw=4:sts=4
+ * @license RequireJS 2.1.4 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved.
+ * Available via the MIT or new BSD license.
+ * see: http://github.com/jrburke/requirejs for details
+ */
+//Not using strict: uneven strict support in browsers, #392, and causes
+//problems with requirejs.exec()/transpiler plugins that may not be strict.
+/*jslint regexp: true, nomen: true, sloppy: true */
+/*global window, navigator, document, importScripts, setTimeout, opera */
+
+var requirejs, require, define;
+(function (global) {
+ var req, s, head, baseElement, dataMain, src,
+ interactiveScript, currentlyAddingScript, mainScript, subPath,
+ version = '2.1.4',
+ commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg,
+ cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g,
+ jsSuffixRegExp = /\.js$/,
+ currDirRegExp = /^\.\//,
+ op = Object.prototype,
+ ostring = op.toString,
+ hasOwn = op.hasOwnProperty,
+ ap = Array.prototype,
+ apsp = ap.splice,
+ isBrowser = !!(typeof window !== 'undefined' && navigator && document),
+ isWebWorker = !isBrowser && typeof importScripts !== 'undefined',
+ //PS3 indicates loaded and complete, but need to wait for complete
+ //specifically. Sequence is 'loading', 'loaded', execution,
+ // then 'complete'. The UA check is unfortunate, but not sure how
+ //to feature test w/o causing perf issues.
+ readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ?
+ /^complete$/ : /^(complete|loaded)$/,
+ defContextName = '_',
+ //Oh the tragedy, detecting opera. See the usage of isOpera for reason.
+ isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]',
+ contexts = {},
+ cfg = {},
+ globalDefQueue = [],
+ useInteractive = false;
+
+ function isFunction(it) {
+ return ostring.call(it) === '[object Function]';
+ }
+
+ function isArray(it) {
+ return ostring.call(it) === '[object Array]';
+ }
+
+ /**
+ * Helper function for iterating over an array. If the func returns
+ * a true value, it will break out of the loop.
+ */
+ function each(ary, func) {
+ if (ary) {
+ var i;
+ for (i = 0; i < ary.length; i += 1) {
+ if (ary[i] && func(ary[i], i, ary)) {
+ break;
+ }
+ }
+ }
+ }
+
+ /**
+ * Helper function for iterating over an array backwards. If the func
+ * returns a true value, it will break out of the loop.
+ */
+ function eachReverse(ary, func) {
+ if (ary) {
+ var i;
+ for (i = ary.length - 1; i > -1; i -= 1) {
+ if (ary[i] && func(ary[i], i, ary)) {
+ break;
+ }
+ }
+ }
+ }
+
+ function hasProp(obj, prop) {
+ return hasOwn.call(obj, prop);
+ }
+
+ function getOwn(obj, prop) {
+ return hasProp(obj, prop) && obj[prop];
+ }
+
+ /**
+ * Cycles over properties in an object and calls a function for each
+ * property value. If the function returns a truthy value, then the
+ * iteration is stopped.
+ */
+ function eachProp(obj, func) {
+ var prop;
+ for (prop in obj) {
+ if (hasProp(obj, prop)) {
+ if (func(obj[prop], prop)) {
+ break;
+ }
+ }
+ }
+ }
+
+ /**
+ * Simple function to mix in properties from source into target,
+ * but only if target does not already have a property of the same name.
+ */
+ function mixin(target, source, force, deepStringMixin) {
+ if (source) {
+ eachProp(source, function (value, prop) {
+ if (force || !hasProp(target, prop)) {
+ if (deepStringMixin && typeof value !== 'string') {
+ if (!target[prop]) {
+ target[prop] = {};
+ }
+ mixin(target[prop], value, force, deepStringMixin);
+ } else {
+ target[prop] = value;
+ }
+ }
+ });
+ }
+ return target;
+ }
+
+ //Similar to Function.prototype.bind, but the 'this' object is specified
+ //first, since it is easier to read/figure out what 'this' will be.
+ function bind(obj, fn) {
+ return function () {
+ return fn.apply(obj, arguments);
+ };
+ }
+
+ function scripts() {
+ return document.getElementsByTagName('script');
+ }
+
+ //Allow getting a global that expressed in
+ //dot notation, like 'a.b.c'.
+ function getGlobal(value) {
+ if (!value) {
+ return value;
+ }
+ var g = global;
+ each(value.split('.'), function (part) {
+ g = g[part];
+ });
+ return g;
+ }
+
+ /**
+ * Constructs an error with a pointer to an URL with more information.
+ * @param {String} id the error ID that maps to an ID on a web page.
+ * @param {String} message human readable error.
+ * @param {Error} [err] the original error, if there is one.
+ *
+ * @returns {Error}
+ */
+ function makeError(id, msg, err, requireModules) {
+ var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id);
+ e.requireType = id;
+ e.requireModules = requireModules;
+ if (err) {
+ e.originalError = err;
+ }
+ return e;
+ }
+
+ if (typeof define !== 'undefined') {
+ //If a define is already in play via another AMD loader,
+ //do not overwrite.
+ return;
+ }
+
+ if (typeof requirejs !== 'undefined') {
+ if (isFunction(requirejs)) {
+ //Do not overwrite and existing requirejs instance.
+ return;
+ }
+ cfg = requirejs;
+ requirejs = undefined;
+ }
+
+ //Allow for a require config object
+ if (typeof require !== 'undefined' && !isFunction(require)) {
+ //assume it is a config object.
+ cfg = require;
+ require = undefined;
+ }
+
+ function newContext(contextName) {
+ var inCheckLoaded, Module, context, handlers,
+ checkLoadedTimeoutId,
+ config = {
+ waitSeconds: 7,
+ baseUrl: './',
+ paths: {},
+ pkgs: {},
+ shim: {},
+ map: {},
+ config: {}
+ },
+ registry = {},
+ undefEvents = {},
+ defQueue = [],
+ defined = {},
+ urlFetched = {},
+ requireCounter = 1,
+ unnormalizedCounter = 1;
+
+ /**
+ * Trims the . and .. from an array of path segments.
+ * It will keep a leading path segment if a .. will become
+ * the first path segment, to help with module name lookups,
+ * which act like paths, but can be remapped. But the end result,
+ * all paths that use this function should look normalized.
+ * NOTE: this method MODIFIES the input array.
+ * @param {Array} ary the array of path segments.
+ */
+ function trimDots(ary) {
+ var i, part;
+ for (i = 0; ary[i]; i += 1) {
+ part = ary[i];
+ if (part === '.') {
+ ary.splice(i, 1);
+ i -= 1;
+ } else if (part === '..') {
+ if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
+ //End of the line. Keep at least one non-dot
+ //path segment at the front so it can be mapped
+ //correctly to disk. Otherwise, there is likely
+ //no path mapping for a path starting with '..'.
+ //This can still fail, but catches the most reasonable
+ //uses of ..
+ break;
+ } else if (i > 0) {
+ ary.splice(i - 1, 2);
+ i -= 2;
+ }
+ }
+ }
+ }
+
+ /**
+ * Given a relative module name, like ./something, normalize it to
+ * a real name that can be mapped to a path.
+ * @param {String} name the relative name
+ * @param {String} baseName a real name that the name arg is relative
+ * to.
+ * @param {Boolean} applyMap apply the map config to the value. Should
+ * only be done if this normalization is for a dependency ID.
+ * @returns {String} normalized name
+ */
+ function normalize(name, baseName, applyMap) {
+ var pkgName, pkgConfig, mapValue, nameParts, i, j, nameSegment,
+ foundMap, foundI, foundStarMap, starI,
+ baseParts = baseName && baseName.split('/'),
+ normalizedBaseParts = baseParts,
+ map = config.map,
+ starMap = map && map['*'];
+
+ //Adjust any relative paths.
+ if (name && name.charAt(0) === '.') {
+ //If have a base name, try to normalize against it,
+ //otherwise, assume it is a top-level require that will
+ //be relative to baseUrl in the end.
+ if (baseName) {
+ if (getOwn(config.pkgs, baseName)) {
+ //If the baseName is a package name, then just treat it as one
+ //name to concat the name with.
+ normalizedBaseParts = baseParts = [baseName];
+ } else {
+ //Convert baseName to array, and lop off the last part,
+ //so that . matches that 'directory' and not name of the baseName's
+ //module. For instance, baseName of 'one/two/three', maps to
+ //'one/two/three.js', but we want the directory, 'one/two' for
+ //this normalization.
+ normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
+ }
+
+ name = normalizedBaseParts.concat(name.split('/'));
+ trimDots(name);
+
+ //Some use of packages may use a . path to reference the
+ //'main' module name, so normalize for that.
+ pkgConfig = getOwn(config.pkgs, (pkgName = name[0]));
+ name = name.join('/');
+ if (pkgConfig && name === pkgName + '/' + pkgConfig.main) {
+ name = pkgName;
+ }
+ } else if (name.indexOf('./') === 0) {
+ // No baseName, so this is ID is resolved relative
+ // to baseUrl, pull off the leading dot.
+ name = name.substring(2);
+ }
+ }
+
+ //Apply map config if available.
+ if (applyMap && (baseParts || starMap) && map) {
+ nameParts = name.split('/');
+
+ for (i = nameParts.length; i > 0; i -= 1) {
+ nameSegment = nameParts.slice(0, i).join('/');
+
+ if (baseParts) {
+ //Find the longest baseName segment match in the config.
+ //So, do joins on the biggest to smallest lengths of baseParts.
+ for (j = baseParts.length; j > 0; j -= 1) {
+ mapValue = getOwn(map, baseParts.slice(0, j).join('/'));
+
+ //baseName segment has config, find if it has one for
+ //this name.
+ if (mapValue) {
+ mapValue = getOwn(mapValue, nameSegment);
+ if (mapValue) {
+ //Match, update name to the new value.
+ foundMap = mapValue;
+ foundI = i;
+ break;
+ }
+ }
+ }
+ }
+
+ if (foundMap) {
+ break;
+ }
+
+ //Check for a star map match, but just hold on to it,
+ //if there is a shorter segment match later in a matching
+ //config, then favor over this star map.
+ if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) {
+ foundStarMap = getOwn(starMap, nameSegment);
+ starI = i;
+ }
+ }
+
+ if (!foundMap && foundStarMap) {
+ foundMap = foundStarMap;
+ foundI = starI;
+ }
+
+ if (foundMap) {
+ nameParts.splice(0, foundI, foundMap);
+ name = nameParts.join('/');
+ }
+ }
+
+ return name;
+ }
+
+ function removeScript(name) {
+ if (isBrowser) {
+ each(scripts(), function (scriptNode) {
+ if (scriptNode.getAttribute('data-requiremodule') === name &&
+ scriptNode.getAttribute('data-requirecontext') === context.contextName) {
+ scriptNode.parentNode.removeChild(scriptNode);
+ return true;
+ }
+ });
+ }
+ }
+
+ function hasPathFallback(id) {
+ var pathConfig = getOwn(config.paths, id);
+ if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) {
+ removeScript(id);
+ //Pop off the first array value, since it failed, and
+ //retry
+ pathConfig.shift();
+ context.require.undef(id);
+ context.require([id]);
+ return true;
+ }
+ }
+
+ //Turns a plugin!resource to [plugin, resource]
+ //with the plugin being undefined if the name
+ //did not have a plugin prefix.
+ function splitPrefix(name) {
+ var prefix,
+ index = name ? name.indexOf('!') : -1;
+ if (index > -1) {
+ prefix = name.substring(0, index);
+ name = name.substring(index + 1, name.length);
+ }
+ return [prefix, name];
+ }
+
+ /**
+ * Creates a module mapping that includes plugin prefix, module
+ * name, and path. If parentModuleMap is provided it will
+ * also normalize the name via require.normalize()
+ *
+ * @param {String} name the module name
+ * @param {String} [parentModuleMap] parent module map
+ * for the module name, used to resolve relative names.
+ * @param {Boolean} isNormalized: is the ID already normalized.
+ * This is true if this call is done for a define() module ID.
+ * @param {Boolean} applyMap: apply the map config to the ID.
+ * Should only be true if this map is for a dependency.
+ *
+ * @returns {Object}
+ */
+ function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) {
+ var url, pluginModule, suffix, nameParts,
+ prefix = null,
+ parentName = parentModuleMap ? parentModuleMap.name : null,
+ originalName = name,
+ isDefine = true,
+ normalizedName = '';
+
+ //If no name, then it means it is a require call, generate an
+ //internal name.
+ if (!name) {
+ isDefine = false;
+ name = '_@r' + (requireCounter += 1);
+ }
+
+ nameParts = splitPrefix(name);
+ prefix = nameParts[0];
+ name = nameParts[1];
+
+ if (prefix) {
+ prefix = normalize(prefix, parentName, applyMap);
+ pluginModule = getOwn(defined, prefix);
+ }
+
+ //Account for relative paths if there is a base name.
+ if (name) {
+ if (prefix) {
+ if (pluginModule && pluginModule.normalize) {
+ //Plugin is loaded, use its normalize method.
+ normalizedName = pluginModule.normalize(name, function (name) {
+ return normalize(name, parentName, applyMap);
+ });
+ } else {
+ normalizedName = normalize(name, parentName, applyMap);
+ }
+ } else {
+ //A regular module.
+ normalizedName = normalize(name, parentName, applyMap);
+
+ //Normalized name may be a plugin ID due to map config
+ //application in normalize. The map config values must
+ //already be normalized, so do not need to redo that part.
+ nameParts = splitPrefix(normalizedName);
+ prefix = nameParts[0];
+ normalizedName = nameParts[1];
+ isNormalized = true;
+
+ url = context.nameToUrl(normalizedName);
+ }
+ }
+
+ //If the id is a plugin id that cannot be determined if it needs
+ //normalization, stamp it with a unique ID so two matching relative
+ //ids that may conflict can be separate.
+ suffix = prefix && !pluginModule && !isNormalized ?
+ '_unnormalized' + (unnormalizedCounter += 1) :
+ '';
+
+ return {
+ prefix: prefix,
+ name: normalizedName,
+ parentMap: parentModuleMap,
+ unnormalized: !!suffix,
+ url: url,
+ originalName: originalName,
+ isDefine: isDefine,
+ id: (prefix ?
+ prefix + '!' + normalizedName :
+ normalizedName) + suffix
+ };
+ }
+
+ function getModule(depMap) {
+ var id = depMap.id,
+ mod = getOwn(registry, id);
+
+ if (!mod) {
+ mod = registry[id] = new context.Module(depMap);
+ }
+
+ return mod;
+ }
+
+ function on(depMap, name, fn) {
+ var id = depMap.id,
+ mod = getOwn(registry, id);
+
+ if (hasProp(defined, id) &&
+ (!mod || mod.defineEmitComplete)) {
+ if (name === 'defined') {
+ fn(defined[id]);
+ }
+ } else {
+ getModule(depMap).on(name, fn);
+ }
+ }
+
+ function onError(err, errback) {
+ var ids = err.requireModules,
+ notified = false;
+
+ if (errback) {
+ errback(err);
+ } else {
+ each(ids, function (id) {
+ var mod = getOwn(registry, id);
+ if (mod) {
+ //Set error on module, so it skips timeout checks.
+ mod.error = err;
+ if (mod.events.error) {
+ notified = true;
+ mod.emit('error', err);
+ }
+ }
+ });
+
+ if (!notified) {
+ req.onError(err);
+ }
+ }
+ }
+
+ /**
+ * Internal method to transfer globalQueue items to this context's
+ * defQueue.
+ */
+ function takeGlobalQueue() {
+ //Push all the globalDefQueue items into the context's defQueue
+ if (globalDefQueue.length) {
+ //Array splice in the values since the context code has a
+ //local var ref to defQueue, so cannot just reassign the one
+ //on context.
+ apsp.apply(defQueue,
+ [defQueue.length - 1, 0].concat(globalDefQueue));
+ globalDefQueue = [];
+ }
+ }
+
+ handlers = {
+ 'require': function (mod) {
+ if (mod.require) {
+ return mod.require;
+ } else {
+ return (mod.require = context.makeRequire(mod.map));
+ }
+ },
+ 'exports': function (mod) {
+ mod.usingExports = true;
+ if (mod.map.isDefine) {
+ if (mod.exports) {
+ return mod.exports;
+ } else {
+ return (mod.exports = defined[mod.map.id] = {});
+ }
+ }
+ },
+ 'module': function (mod) {
+ if (mod.module) {
+ return mod.module;
+ } else {
+ return (mod.module = {
+ id: mod.map.id,
+ uri: mod.map.url,
+ config: function () {
+ return (config.config && getOwn(config.config, mod.map.id)) || {};
+ },
+ exports: defined[mod.map.id]
+ });
+ }
+ }
+ };
+
+ function cleanRegistry(id) {
+ //Clean up machinery used for waiting modules.
+ delete registry[id];
+ }
+
+ function breakCycle(mod, traced, processed) {
+ var id = mod.map.id;
+
+ if (mod.error) {
+ mod.emit('error', mod.error);
+ } else {
+ traced[id] = true;
+ each(mod.depMaps, function (depMap, i) {
+ var depId = depMap.id,
+ dep = getOwn(registry, depId);
+
+ //Only force things that have not completed
+ //being defined, so still in the registry,
+ //and only if it has not been matched up
+ //in the module already.
+ if (dep && !mod.depMatched[i] && !processed[depId]) {
+ if (getOwn(traced, depId)) {
+ mod.defineDep(i, defined[depId]);
+ mod.check(); //pass false?
+ } else {
+ breakCycle(dep, traced, processed);
+ }
+ }
+ });
+ processed[id] = true;
+ }
+ }
+
+ function checkLoaded() {
+ var map, modId, err, usingPathFallback,
+ waitInterval = config.waitSeconds * 1000,
+ //It is possible to disable the wait interval by using waitSeconds of 0.
+ expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(),
+ noLoads = [],
+ reqCalls = [],
+ stillLoading = false,
+ needCycleCheck = true;
+
+ //Do not bother if this call was a result of a cycle break.
+ if (inCheckLoaded) {
+ return;
+ }
+
+ inCheckLoaded = true;
+
+ //Figure out the state of all the modules.
+ eachProp(registry, function (mod) {
+ map = mod.map;
+ modId = map.id;
+
+ //Skip things that are not enabled or in error state.
+ if (!mod.enabled) {
+ return;
+ }
+
+ if (!map.isDefine) {
+ reqCalls.push(mod);
+ }
+
+ if (!mod.error) {
+ //If the module should be executed, and it has not
+ //been inited and time is up, remember it.
+ if (!mod.inited && expired) {
+ if (hasPathFallback(modId)) {
+ usingPathFallback = true;
+ stillLoading = true;
+ } else {
+ noLoads.push(modId);
+ removeScript(modId);
+ }
+ } else if (!mod.inited && mod.fetched && map.isDefine) {
+ stillLoading = true;
+ if (!map.prefix) {
+ //No reason to keep looking for unfinished
+ //loading. If the only stillLoading is a
+ //plugin resource though, keep going,
+ //because it may be that a plugin resource
+ //is waiting on a non-plugin cycle.
+ return (needCycleCheck = false);
+ }
+ }
+ }
+ });
+
+ if (expired && noLoads.length) {
+ //If wait time expired, throw error of unloaded modules.
+ err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads);
+ err.contextName = context.contextName;
+ return onError(err);
+ }
+
+ //Not expired, check for a cycle.
+ if (needCycleCheck) {
+ each(reqCalls, function (mod) {
+ breakCycle(mod, {}, {});
+ });
+ }
+
+ //If still waiting on loads, and the waiting load is something
+ //other than a plugin resource, or there are still outstanding
+ //scripts, then just try back later.
+ if ((!expired || usingPathFallback) && stillLoading) {
+ //Something is still waiting to load. Wait for it, but only
+ //if a timeout is not already in effect.
+ if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) {
+ checkLoadedTimeoutId = setTimeout(function () {
+ checkLoadedTimeoutId = 0;
+ checkLoaded();
+ }, 50);
+ }
+ }
+
+ inCheckLoaded = false;
+ }
+
+ Module = function (map) {
+ this.events = getOwn(undefEvents, map.id) || {};
+ this.map = map;
+ this.shim = getOwn(config.shim, map.id);
+ this.depExports = [];
+ this.depMaps = [];
+ this.depMatched = [];
+ this.pluginMaps = {};
+ this.depCount = 0;
+
+ /* this.exports this.factory
+ this.depMaps = [],
+ this.enabled, this.fetched
+ */
+ };
+
+ Module.prototype = {
+ init: function (depMaps, factory, errback, options) {
+ options = options || {};
+
+ //Do not do more inits if already done. Can happen if there
+ //are multiple define calls for the same module. That is not
+ //a normal, common case, but it is also not unexpected.
+ if (this.inited) {
+ return;
+ }
+
+ this.factory = factory;
+
+ if (errback) {
+ //Register for errors on this module.
+ this.on('error', errback);
+ } else if (this.events.error) {
+ //If no errback already, but there are error listeners
+ //on this module, set up an errback to pass to the deps.
+ errback = bind(this, function (err) {
+ this.emit('error', err);
+ });
+ }
+
+ //Do a copy of the dependency array, so that
+ //source inputs are not modified. For example
+ //"shim" deps are passed in here directly, and
+ //doing a direct modification of the depMaps array
+ //would affect that config.
+ this.depMaps = depMaps && depMaps.slice(0);
+
+ this.errback = errback;
+
+ //Indicate this module has be initialized
+ this.inited = true;
+
+ this.ignore = options.ignore;
+
+ //Could have option to init this module in enabled mode,
+ //or could have been previously marked as enabled. However,
+ //the dependencies are not known until init is called. So
+ //if enabled previously, now trigger dependencies as enabled.
+ if (options.enabled || this.enabled) {
+ //Enable this module and dependencies.
+ //Will call this.check()
+ this.enable();
+ } else {
+ this.check();
+ }
+ },
+
+ defineDep: function (i, depExports) {
+ //Because of cycles, defined callback for a given
+ //export can be called more than once.
+ if (!this.depMatched[i]) {
+ this.depMatched[i] = true;
+ this.depCount -= 1;
+ this.depExports[i] = depExports;
+ }
+ },
+
+ fetch: function () {
+ if (this.fetched) {
+ return;
+ }
+ this.fetched = true;
+
+ context.startTime = (new Date()).getTime();
+
+ var map = this.map;
+
+ //If the manager is for a plugin managed resource,
+ //ask the plugin to load it now.
+ if (this.shim) {
+ context.makeRequire(this.map, {
+ enableBuildCallback: true
+ })(this.shim.deps || [], bind(this, function () {
+ return map.prefix ? this.callPlugin() : this.load();
+ }));
+ } else {
+ //Regular dependency.
+ return map.prefix ? this.callPlugin() : this.load();
+ }
+ },
+
+ load: function () {
+ var url = this.map.url;
+
+ //Regular dependency.
+ if (!urlFetched[url]) {
+ urlFetched[url] = true;
+ context.load(this.map.id, url);
+ }
+ },
+
+ /**
+ * Checks is the module is ready to define itself, and if so,
+ * define it.
+ */
+ check: function () {
+ if (!this.enabled || this.enabling) {
+ return;
+ }
+
+ var err, cjsModule,
+ id = this.map.id,
+ depExports = this.depExports,
+ exports = this.exports,
+ factory = this.factory;
+
+ if (!this.inited) {
+ this.fetch();
+ } else if (this.error) {
+ this.emit('error', this.error);
+ } else if (!this.defining) {
+ //The factory could trigger another require call
+ //that would result in checking this module to
+ //define itself again. If already in the process
+ //of doing that, skip this work.
+ this.defining = true;
+
+ if (this.depCount < 1 && !this.defined) {
+ if (isFunction(factory)) {
+ //If there is an error listener, favor passing
+ //to that instead of throwing an error.
+ if (this.events.error) {
+ try {
+ exports = context.execCb(id, factory, depExports, exports);
+ } catch (e) {
+ err = e;
+ }
+ } else {
+ exports = context.execCb(id, factory, depExports, exports);
+ }
+
+ if (this.map.isDefine) {
+ //If setting exports via 'module' is in play,
+ //favor that over return value and exports. After that,
+ //favor a non-undefined return value over exports use.
+ cjsModule = this.module;
+ if (cjsModule &&
+ cjsModule.exports !== undefined &&
+ //Make sure it is not already the exports value
+ cjsModule.exports !== this.exports) {
+ exports = cjsModule.exports;
+ } else if (exports === undefined && this.usingExports) {
+ //exports already set the defined value.
+ exports = this.exports;
+ }
+ }
+
+ if (err) {
+ err.requireMap = this.map;
+ err.requireModules = [this.map.id];
+ err.requireType = 'define';
+ return onError((this.error = err));
+ }
+
+ } else {
+ //Just a literal value
+ exports = factory;
+ }
+
+ this.exports = exports;
+
+ if (this.map.isDefine && !this.ignore) {
+ defined[id] = exports;
+
+ if (req.onResourceLoad) {
+ req.onResourceLoad(context, this.map, this.depMaps);
+ }
+ }
+
+ //Clean up
+ delete registry[id];
+
+ this.defined = true;
+ }
+
+ //Finished the define stage. Allow calling check again
+ //to allow define notifications below in the case of a
+ //cycle.
+ this.defining = false;
+
+ if (this.defined && !this.defineEmitted) {
+ this.defineEmitted = true;
+ this.emit('defined', this.exports);
+ this.defineEmitComplete = true;
+ }
+
+ }
+ },
+
+ callPlugin: function () {
+ var map = this.map,
+ id = map.id,
+ //Map already normalized the prefix.
+ pluginMap = makeModuleMap(map.prefix);
+
+ //Mark this as a dependency for this plugin, so it
+ //can be traced for cycles.
+ this.depMaps.push(pluginMap);
+
+ on(pluginMap, 'defined', bind(this, function (plugin) {
+ var load, normalizedMap, normalizedMod,
+ name = this.map.name,
+ parentName = this.map.parentMap ? this.map.parentMap.name : null,
+ localRequire = context.makeRequire(map.parentMap, {
+ enableBuildCallback: true
+ });
+
+ //If current map is not normalized, wait for that
+ //normalized name to load instead of continuing.
+ if (this.map.unnormalized) {
+ //Normalize the ID if the plugin allows it.
+ if (plugin.normalize) {
+ name = plugin.normalize(name, function (name) {
+ return normalize(name, parentName, true);
+ }) || '';
+ }
+
+ //prefix and name should already be normalized, no need
+ //for applying map config again either.
+ normalizedMap = makeModuleMap(map.prefix + '!' + name,
+ this.map.parentMap);
+ on(normalizedMap,
+ 'defined', bind(this, function (value) {
+ this.init([], function () { return value; }, null, {
+ enabled: true,
+ ignore: true
+ });
+ }));
+
+ normalizedMod = getOwn(registry, normalizedMap.id);
+ if (normalizedMod) {
+ //Mark this as a dependency for this plugin, so it
+ //can be traced for cycles.
+ this.depMaps.push(normalizedMap);
+
+ if (this.events.error) {
+ normalizedMod.on('error', bind(this, function (err) {
+ this.emit('error', err);
+ }));
+ }
+ normalizedMod.enable();
+ }
+
+ return;
+ }
+
+ load = bind(this, function (value) {
+ this.init([], function () { return value; }, null, {
+ enabled: true
+ });
+ });
+
+ load.error = bind(this, function (err) {
+ this.inited = true;
+ this.error = err;
+ err.requireModules = [id];
+
+ //Remove temp unnormalized modules for this module,
+ //since they will never be resolved otherwise now.
+ eachProp(registry, function (mod) {
+ if (mod.map.id.indexOf(id + '_unnormalized') === 0) {
+ cleanRegistry(mod.map.id);
+ }
+ });
+
+ onError(err);
+ });
+
+ //Allow plugins to load other code without having to know the
+ //context or how to 'complete' the load.
+ load.fromText = bind(this, function (text, textAlt) {
+ /*jslint evil: true */
+ var moduleName = map.name,
+ moduleMap = makeModuleMap(moduleName),
+ hasInteractive = useInteractive;
+
+ //As of 2.1.0, support just passing the text, to reinforce
+ //fromText only being called once per resource. Still
+ //support old style of passing moduleName but discard
+ //that moduleName in favor of the internal ref.
+ if (textAlt) {
+ text = textAlt;
+ }
+
+ //Turn off interactive script matching for IE for any define
+ //calls in the text, then turn it back on at the end.
+ if (hasInteractive) {
+ useInteractive = false;
+ }
+
+ //Prime the system by creating a module instance for
+ //it.
+ getModule(moduleMap);
+
+ //Transfer any config to this other module.
+ if (hasProp(config.config, id)) {
+ config.config[moduleName] = config.config[id];
+ }
+
+ try {
+ req.exec(text);
+ } catch (e) {
+ return onError(makeError('fromtexteval',
+ 'fromText eval for ' + id +
+ ' failed: ' + e,
+ e,
+ [id]));
+ }
+
+ if (hasInteractive) {
+ useInteractive = true;
+ }
+
+ //Mark this as a dependency for the plugin
+ //resource
+ this.depMaps.push(moduleMap);
+
+ //Support anonymous modules.
+ context.completeLoad(moduleName);
+
+ //Bind the value of that module to the value for this
+ //resource ID.
+ localRequire([moduleName], load);
+ });
+
+ //Use parentName here since the plugin's name is not reliable,
+ //could be some weird string with no path that actually wants to
+ //reference the parentName's path.
+ plugin.load(map.name, localRequire, load, config);
+ }));
+
+ context.enable(pluginMap, this);
+ this.pluginMaps[pluginMap.id] = pluginMap;
+ },
+
+ enable: function () {
+ this.enabled = true;
+
+ //Set flag mentioning that the module is enabling,
+ //so that immediate calls to the defined callbacks
+ //for dependencies do not trigger inadvertent load
+ //with the depCount still being zero.
+ this.enabling = true;
+
+ //Enable each dependency
+ each(this.depMaps, bind(this, function (depMap, i) {
+ var id, mod, handler;
+
+ if (typeof depMap === 'string') {
+ //Dependency needs to be converted to a depMap
+ //and wired up to this module.
+ depMap = makeModuleMap(depMap,
+ (this.map.isDefine ? this.map : this.map.parentMap),
+ false,
+ !this.skipMap);
+ this.depMaps[i] = depMap;
+
+ handler = getOwn(handlers, depMap.id);
+
+ if (handler) {
+ this.depExports[i] = handler(this);
+ return;
+ }
+
+ this.depCount += 1;
+
+ on(depMap, 'defined', bind(this, function (depExports) {
+ this.defineDep(i, depExports);
+ this.check();
+ }));
+
+ if (this.errback) {
+ on(depMap, 'error', this.errback);
+ }
+ }
+
+ id = depMap.id;
+ mod = registry[id];
+
+ //Skip special modules like 'require', 'exports', 'module'
+ //Also, don't call enable if it is already enabled,
+ //important in circular dependency cases.
+ if (!hasProp(handlers, id) && mod && !mod.enabled) {
+ context.enable(depMap, this);
+ }
+ }));
+
+ //Enable each plugin that is used in
+ //a dependency
+ eachProp(this.pluginMaps, bind(this, function (pluginMap) {
+ var mod = getOwn(registry, pluginMap.id);
+ if (mod && !mod.enabled) {
+ context.enable(pluginMap, this);
+ }
+ }));
+
+ this.enabling = false;
+
+ this.check();
+ },
+
+ on: function (name, cb) {
+ var cbs = this.events[name];
+ if (!cbs) {
+ cbs = this.events[name] = [];
+ }
+ cbs.push(cb);
+ },
+
+ emit: function (name, evt) {
+ each(this.events[name], function (cb) {
+ cb(evt);
+ });
+ if (name === 'error') {
+ //Now that the error handler was triggered, remove
+ //the listeners, since this broken Module instance
+ //can stay around for a while in the registry.
+ delete this.events[name];
+ }
+ }
+ };
+
+ function callGetModule(args) {
+ //Skip modules already defined.
+ if (!hasProp(defined, args[0])) {
+ getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]);
+ }
+ }
+
+ function removeListener(node, func, name, ieName) {
+ //Favor detachEvent because of IE9
+ //issue, see attachEvent/addEventListener comment elsewhere
+ //in this file.
+ if (node.detachEvent && !isOpera) {
+ //Probably IE. If not it will throw an error, which will be
+ //useful to know.
+ if (ieName) {
+ node.detachEvent(ieName, func);
+ }
+ } else {
+ node.removeEventListener(name, func, false);
+ }
+ }
+
+ /**
+ * Given an event from a script node, get the requirejs info from it,
+ * and then removes the event listeners on the node.
+ * @param {Event} evt
+ * @returns {Object}
+ */
+ function getScriptData(evt) {
+ //Using currentTarget instead of target for Firefox 2.0's sake. Not
+ //all old browsers will be supported, but this one was easy enough
+ //to support and still makes sense.
+ var node = evt.currentTarget || evt.srcElement;
+
+ //Remove the listeners once here.
+ removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange');
+ removeListener(node, context.onScriptError, 'error');
+
+ return {
+ node: node,
+ id: node && node.getAttribute('data-requiremodule')
+ };
+ }
+
+ function intakeDefines() {
+ var args;
+
+ //Any defined modules in the global queue, intake them now.
+ takeGlobalQueue();
+
+ //Make sure any remaining defQueue items get properly processed.
+ while (defQueue.length) {
+ args = defQueue.shift();
+ if (args[0] === null) {
+ return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1]));
+ } else {
+ //args are id, deps, factory. Should be normalized by the
+ //define() function.
+ callGetModule(args);
+ }
+ }
+ }
+
+ context = {
+ config: config,
+ contextName: contextName,
+ registry: registry,
+ defined: defined,
+ urlFetched: urlFetched,
+ defQueue: defQueue,
+ Module: Module,
+ makeModuleMap: makeModuleMap,
+ nextTick: req.nextTick,
+
+ /**
+ * Set a configuration for the context.
+ * @param {Object} cfg config object to integrate.
+ */
+ configure: function (cfg) {
+ //Make sure the baseUrl ends in a slash.
+ if (cfg.baseUrl) {
+ if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') {
+ cfg.baseUrl += '/';
+ }
+ }
+
+ //Save off the paths and packages since they require special processing,
+ //they are additive.
+ var pkgs = config.pkgs,
+ shim = config.shim,
+ objs = {
+ paths: true,
+ config: true,
+ map: true
+ };
+
+ eachProp(cfg, function (value, prop) {
+ if (objs[prop]) {
+ if (prop === 'map') {
+ mixin(config[prop], value, true, true);
+ } else {
+ mixin(config[prop], value, true);
+ }
+ } else {
+ config[prop] = value;
+ }
+ });
+
+ //Merge shim
+ if (cfg.shim) {
+ eachProp(cfg.shim, function (value, id) {
+ //Normalize the structure
+ if (isArray(value)) {
+ value = {
+ deps: value
+ };
+ }
+ if ((value.exports || value.init) && !value.exportsFn) {
+ value.exportsFn = context.makeShimExports(value);
+ }
+ shim[id] = value;
+ });
+ config.shim = shim;
+ }
+
+ //Adjust packages if necessary.
+ if (cfg.packages) {
+ each(cfg.packages, function (pkgObj) {
+ var location;
+
+ pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj;
+ location = pkgObj.location;
+
+ //Create a brand new object on pkgs, since currentPackages can
+ //be passed in again, and config.pkgs is the internal transformed
+ //state for all package configs.
+ pkgs[pkgObj.name] = {
+ name: pkgObj.name,
+ location: location || pkgObj.name,
+ //Remove leading dot in main, so main paths are normalized,
+ //and remove any trailing .js, since different package
+ //envs have different conventions: some use a module name,
+ //some use a file name.
+ main: (pkgObj.main || 'main')
+ .replace(currDirRegExp, '')
+ .replace(jsSuffixRegExp, '')
+ };
+ });
+
+ //Done with modifications, assing packages back to context config
+ config.pkgs = pkgs;
+ }
+
+ //If there are any "waiting to execute" modules in the registry,
+ //update the maps for them, since their info, like URLs to load,
+ //may have changed.
+ eachProp(registry, function (mod, id) {
+ //If module already has init called, since it is too
+ //late to modify them, and ignore unnormalized ones
+ //since they are transient.
+ if (!mod.inited && !mod.map.unnormalized) {
+ mod.map = makeModuleMap(id);
+ }
+ });
+
+ //If a deps array or a config callback is specified, then call
+ //require with those args. This is useful when require is defined as a
+ //config object before require.js is loaded.
+ if (cfg.deps || cfg.callback) {
+ context.require(cfg.deps || [], cfg.callback);
+ }
+ },
+
+ makeShimExports: function (value) {
+ function fn() {
+ var ret;
+ if (value.init) {
+ ret = value.init.apply(global, arguments);
+ }
+ return ret || (value.exports && getGlobal(value.exports));
+ }
+ return fn;
+ },
+
+ makeRequire: function (relMap, options) {
+ options = options || {};
+
+ function localRequire(deps, callback, errback) {
+ var id, map, requireMod;
+
+ if (options.enableBuildCallback && callback && isFunction(callback)) {
+ callback.__requireJsBuild = true;
+ }
+
+ if (typeof deps === 'string') {
+ if (isFunction(callback)) {
+ //Invalid call
+ return onError(makeError('requireargs', 'Invalid require call'), errback);
+ }
+
+ //If require|exports|module are requested, get the
+ //value for them from the special handlers. Caveat:
+ //this only works while module is being defined.
+ if (relMap && hasProp(handlers, deps)) {
+ return handlers[deps](registry[relMap.id]);
+ }
+
+ //Synchronous access to one module. If require.get is
+ //available (as in the Node adapter), prefer that.
+ if (req.get) {
+ return req.get(context, deps, relMap);
+ }
+
+ //Normalize module name, if it contains . or ..
+ map = makeModuleMap(deps, relMap, false, true);
+ id = map.id;
+
+ if (!hasProp(defined, id)) {
+ return onError(makeError('notloaded', 'Module name "' +
+ id +
+ '" has not been loaded yet for context: ' +
+ contextName +
+ (relMap ? '' : '. Use require([])')));
+ }
+ return defined[id];
+ }
+
+ //Grab defines waiting in the global queue.
+ intakeDefines();
+
+ //Mark all the dependencies as needing to be loaded.
+ context.nextTick(function () {
+ //Some defines could have been added since the
+ //require call, collect them.
+ intakeDefines();
+
+ requireMod = getModule(makeModuleMap(null, relMap));
+
+ //Store if map config should be applied to this require
+ //call for dependencies.
+ requireMod.skipMap = options.skipMap;
+
+ requireMod.init(deps, callback, errback, {
+ enabled: true
+ });
+
+ checkLoaded();
+ });
+
+ return localRequire;
+ }
+
+ mixin(localRequire, {
+ isBrowser: isBrowser,
+
+ /**
+ * Converts a module name + .extension into an URL path.
+ * *Requires* the use of a module name. It does not support using
+ * plain URLs like nameToUrl.
+ */
+ toUrl: function (moduleNamePlusExt) {
+ var ext, url,
+ index = moduleNamePlusExt.lastIndexOf('.'),
+ segment = moduleNamePlusExt.split('/')[0],
+ isRelative = segment === '.' || segment === '..';
+
+ //Have a file extension alias, and it is not the
+ //dots from a relative path.
+ if (index !== -1 && (!isRelative || index > 1)) {
+ ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length);
+ moduleNamePlusExt = moduleNamePlusExt.substring(0, index);
+ }
+
+ url = context.nameToUrl(normalize(moduleNamePlusExt,
+ relMap && relMap.id, true), ext || '.fake');
+ return ext ? url : url.substring(0, url.length - 5);
+ },
+
+ defined: function (id) {
+ return hasProp(defined, makeModuleMap(id, relMap, false, true).id);
+ },
+
+ specified: function (id) {
+ id = makeModuleMap(id, relMap, false, true).id;
+ return hasProp(defined, id) || hasProp(registry, id);
+ }
+ });
+
+ //Only allow undef on top level require calls
+ if (!relMap) {
+ localRequire.undef = function (id) {
+ //Bind any waiting define() calls to this context,
+ //fix for #408
+ takeGlobalQueue();
+
+ var map = makeModuleMap(id, relMap, true),
+ mod = getOwn(registry, id);
+
+ delete defined[id];
+ delete urlFetched[map.url];
+ delete undefEvents[id];
+
+ if (mod) {
+ //Hold on to listeners in case the
+ //module will be attempted to be reloaded
+ //using a different config.
+ if (mod.events.defined) {
+ undefEvents[id] = mod.events;
+ }
+
+ cleanRegistry(id);
+ }
+ };
+ }
+
+ return localRequire;
+ },
+
+ /**
+ * Called to enable a module if it is still in the registry
+ * awaiting enablement. A second arg, parent, the parent module,
+ * is passed in for context, when this method is overriden by
+ * the optimizer. Not shown here to keep code compact.
+ */
+ enable: function (depMap) {
+ var mod = getOwn(registry, depMap.id);
+ if (mod) {
+ getModule(depMap).enable();
+ }
+ },
+
+ /**
+ * Internal method used by environment adapters to complete a load event.
+ * A load event could be a script load or just a load pass from a synchronous
+ * load call.
+ * @param {String} moduleName the name of the module to potentially complete.
+ */
+ completeLoad: function (moduleName) {
+ var found, args, mod,
+ shim = getOwn(config.shim, moduleName) || {},
+ shExports = shim.exports;
+
+ takeGlobalQueue();
+
+ while (defQueue.length) {
+ args = defQueue.shift();
+ if (args[0] === null) {
+ args[0] = moduleName;
+ //If already found an anonymous module and bound it
+ //to this name, then this is some other anon module
+ //waiting for its completeLoad to fire.
+ if (found) {
+ break;
+ }
+ found = true;
+ } else if (args[0] === moduleName) {
+ //Found matching define call for this script!
+ found = true;
+ }
+
+ callGetModule(args);
+ }
+
+ //Do this after the cycle of callGetModule in case the result
+ //of those calls/init calls changes the registry.
+ mod = getOwn(registry, moduleName);
+
+ if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) {
+ if (config.enforceDefine && (!shExports || !getGlobal(shExports))) {
+ if (hasPathFallback(moduleName)) {
+ return;
+ } else {
+ return onError(makeError('nodefine',
+ 'No define call for ' + moduleName,
+ null,
+ [moduleName]));
+ }
+ } else {
+ //A script that does not call define(), so just simulate
+ //the call for it.
+ callGetModule([moduleName, (shim.deps || []), shim.exportsFn]);
+ }
+ }
+
+ checkLoaded();
+ },
+
+ /**
+ * Converts a module name to a file path. Supports cases where
+ * moduleName may actually be just an URL.
+ * Note that it **does not** call normalize on the moduleName,
+ * it is assumed to have already been normalized. This is an
+ * internal API, not a public one. Use toUrl for the public API.
+ */
+ nameToUrl: function (moduleName, ext) {
+ var paths, pkgs, pkg, pkgPath, syms, i, parentModule, url,
+ parentPath;
+
+ //If a colon is in the URL, it indicates a protocol is used and it is just
+ //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?)
+ //or ends with .js, then assume the user meant to use an url and not a module id.
+ //The slash is important for protocol-less URLs as well as full paths.
+ if (req.jsExtRegExp.test(moduleName)) {
+ //Just a plain path, not module name lookup, so just return it.
+ //Add extension if it is included. This is a bit wonky, only non-.js things pass
+ //an extension, this method probably needs to be reworked.
+ url = moduleName + (ext || '');
+ } else {
+ //A module that needs to be converted to a path.
+ paths = config.paths;
+ pkgs = config.pkgs;
+
+ syms = moduleName.split('/');
+ //For each module name segment, see if there is a path
+ //registered for it. Start with most specific name
+ //and work up from it.
+ for (i = syms.length; i > 0; i -= 1) {
+ parentModule = syms.slice(0, i).join('/');
+ pkg = getOwn(pkgs, parentModule);
+ parentPath = getOwn(paths, parentModule);
+ if (parentPath) {
+ //If an array, it means there are a few choices,
+ //Choose the one that is desired
+ if (isArray(parentPath)) {
+ parentPath = parentPath[0];
+ }
+ syms.splice(0, i, parentPath);
+ break;
+ } else if (pkg) {
+ //If module name is just the package name, then looking
+ //for the main module.
+ if (moduleName === pkg.name) {
+ pkgPath = pkg.location + '/' + pkg.main;
+ } else {
+ pkgPath = pkg.location;
+ }
+ syms.splice(0, i, pkgPath);
+ break;
+ }
+ }
+
+ //Join the path parts together, then figure out if baseUrl is needed.
+ url = syms.join('/');
+ url += (ext || (/\?/.test(url) ? '' : '.js'));
+ url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url;
+ }
+
+ return config.urlArgs ? url +
+ ((url.indexOf('?') === -1 ? '?' : '&') +
+ config.urlArgs) : url;
+ },
+
+ //Delegates to req.load. Broken out as a separate function to
+ //allow overriding in the optimizer.
+ load: function (id, url) {
+ req.load(context, id, url);
+ },
+
+ /**
+ * Executes a module callack function. Broken out as a separate function
+ * solely to allow the build system to sequence the files in the built
+ * layer in the right sequence.
+ *
+ * @private
+ */
+ execCb: function (name, callback, args, exports) {
+ return callback.apply(exports, args);
+ },
+
+ /**
+ * callback for script loads, used to check status of loading.
+ *
+ * @param {Event} evt the event from the browser for the script
+ * that was loaded.
+ */
+ onScriptLoad: function (evt) {
+ //Using currentTarget instead of target for Firefox 2.0's sake. Not
+ //all old browsers will be supported, but this one was easy enough
+ //to support and still makes sense.
+ if (evt.type === 'load' ||
+ (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) {
+ //Reset interactive script so a script node is not held onto for
+ //to long.
+ interactiveScript = null;
+
+ //Pull out the name of the module and the context.
+ var data = getScriptData(evt);
+ context.completeLoad(data.id);
+ }
+ },
+
+ /**
+ * Callback for script errors.
+ */
+ onScriptError: function (evt) {
+ var data = getScriptData(evt);
+ if (!hasPathFallback(data.id)) {
+ return onError(makeError('scripterror', 'Script error', evt, [data.id]));
+ }
+ }
+ };
+
+ context.require = context.makeRequire();
+ return context;
+ }
+
+ /**
+ * Main entry point.
+ *
+ * If the only argument to require is a string, then the module that
+ * is represented by that string is fetched for the appropriate context.
+ *
+ * If the first argument is an array, then it will be treated as an array
+ * of dependency string names to fetch. An optional function callback can
+ * be specified to execute when all of those dependencies are available.
+ *
+ * Make a local req variable to help Caja compliance (it assumes things
+ * on a require that are not standardized), and to give a short
+ * name for minification/local scope use.
+ */
+ req = requirejs = function (deps, callback, errback, optional) {
+
+ //Find the right context, use default
+ var context, config,
+ contextName = defContextName;
+
+ // Determine if have config object in the call.
+ if (!isArray(deps) && typeof deps !== 'string') {
+ // deps is a config object
+ config = deps;
+ if (isArray(callback)) {
+ // Adjust args if there are dependencies
+ deps = callback;
+ callback = errback;
+ errback = optional;
+ } else {
+ deps = [];
+ }
+ }
+
+ if (config && config.context) {
+ contextName = config.context;
+ }
+
+ context = getOwn(contexts, contextName);
+ if (!context) {
+ context = contexts[contextName] = req.s.newContext(contextName);
+ }
+
+ if (config) {
+ context.configure(config);
+ }
+
+ return context.require(deps, callback, errback);
+ };
+
+ /**
+ * Support require.config() to make it easier to cooperate with other
+ * AMD loaders on globally agreed names.
+ */
+ req.config = function (config) {
+ return req(config);
+ };
+
+ /**
+ * Execute something after the current tick
+ * of the event loop. Override for other envs
+ * that have a better solution than setTimeout.
+ * @param {Function} fn function to execute later.
+ */
+ req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) {
+ setTimeout(fn, 4);
+ } : function (fn) { fn(); };
+
+ /**
+ * Export require as a global, but only if it does not already exist.
+ */
+ if (!require) {
+ require = req;
+ }
+
+ req.version = version;
+
+ //Used to filter out dependencies that are already paths.
+ req.jsExtRegExp = /^\/|:|\?|\.js$/;
+ req.isBrowser = isBrowser;
+ s = req.s = {
+ contexts: contexts,
+ newContext: newContext
+ };
+
+ //Create default context.
+ req({});
+
+ //Exports some context-sensitive methods on global require.
+ each([
+ 'toUrl',
+ 'undef',
+ 'defined',
+ 'specified'
+ ], function (prop) {
+ //Reference from contexts instead of early binding to default context,
+ //so that during builds, the latest instance of the default context
+ //with its config gets used.
+ req[prop] = function () {
+ var ctx = contexts[defContextName];
+ return ctx.require[prop].apply(ctx, arguments);
+ };
+ });
+
+ if (isBrowser) {
+ head = s.head = document.getElementsByTagName('head')[0];
+ //If BASE tag is in play, using appendChild is a problem for IE6.
+ //When that browser dies, this can be removed. Details in this jQuery bug:
+ //http://dev.jquery.com/ticket/2709
+ baseElement = document.getElementsByTagName('base')[0];
+ if (baseElement) {
+ head = s.head = baseElement.parentNode;
+ }
+ }
+
+ /**
+ * Any errors that require explicitly generates will be passed to this
+ * function. Intercept/override it if you want custom error handling.
+ * @param {Error} err the error object.
+ */
+ req.onError = function (err) {
+ throw err;
+ };
+
+ /**
+ * Does the request to load a module for the browser case.
+ * Make this a separate function to allow other environments
+ * to override it.
+ *
+ * @param {Object} context the require context to find state.
+ * @param {String} moduleName the name of the module.
+ * @param {Object} url the URL to the module.
+ */
+ req.load = function (context, moduleName, url) {
+ var config = (context && context.config) || {},
+ node;
+ if (isBrowser) {
+ //In the browser so use a script tag
+ node = config.xhtml ?
+ document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') :
+ document.createElement('script');
+ node.type = config.scriptType || 'text/javascript';
+ node.charset = 'utf-8';
+ node.async = true;
+
+ node.setAttribute('data-requirecontext', context.contextName);
+ node.setAttribute('data-requiremodule', moduleName);
+
+ //Set up load listener. Test attachEvent first because IE9 has
+ //a subtle issue in its addEventListener and script onload firings
+ //that do not match the behavior of all other browsers with
+ //addEventListener support, which fire the onload event for a
+ //script right after the script execution. See:
+ //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution
+ //UNFORTUNATELY Opera implements attachEvent but does not follow the script
+ //script execution mode.
+ if (node.attachEvent &&
+ //Check if node.attachEvent is artificially added by custom script or
+ //natively supported by browser
+ //read https://github.com/jrburke/requirejs/issues/187
+ //if we can NOT find [native code] then it must NOT natively supported.
+ //in IE8, node.attachEvent does not have toString()
+ //Note the test for "[native code" with no closing brace, see:
+ //https://github.com/jrburke/requirejs/issues/273
+ !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) &&
+ !isOpera) {
+ //Probably IE. IE (at least 6-8) do not fire
+ //script onload right after executing the script, so
+ //we cannot tie the anonymous define call to a name.
+ //However, IE reports the script as being in 'interactive'
+ //readyState at the time of the define call.
+ useInteractive = true;
+
+ node.attachEvent('onreadystatechange', context.onScriptLoad);
+ //It would be great to add an error handler here to catch
+ //404s in IE9+. However, onreadystatechange will fire before
+ //the error handler, so that does not help. If addEvenListener
+ //is used, then IE will fire error before load, but we cannot
+ //use that pathway given the connect.microsoft.com issue
+ //mentioned above about not doing the 'script execute,
+ //then fire the script load event listener before execute
+ //next script' that other browsers do.
+ //Best hope: IE10 fixes the issues,
+ //and then destroys all installs of IE 6-9.
+ //node.attachEvent('onerror', context.onScriptError);
+ } else {
+ node.addEventListener('load', context.onScriptLoad, false);
+ node.addEventListener('error', context.onScriptError, false);
+ }
+ node.src = url;
+
+ //For some cache cases in IE 6-8, the script executes before the end
+ //of the appendChild execution, so to tie an anonymous define
+ //call to the module name (which is stored on the node), hold on
+ //to a reference to this node, but clear after the DOM insertion.
+ currentlyAddingScript = node;
+ if (baseElement) {
+ head.insertBefore(node, baseElement);
+ } else {
+ head.appendChild(node);
+ }
+ currentlyAddingScript = null;
+
+ return node;
+ } else if (isWebWorker) {
+ //In a web worker, use importScripts. This is not a very
+ //efficient use of importScripts, importScripts will block until
+ //its script is downloaded and evaluated. However, if web workers
+ //are in play, the expectation that a build has been done so that
+ //only one script needs to be loaded anyway. This may need to be
+ //reevaluated if other use cases become common.
+ importScripts(url);
+
+ //Account for anonymous modules
+ context.completeLoad(moduleName);
+ }
+ };
+
+ function getInteractiveScript() {
+ if (interactiveScript && interactiveScript.readyState === 'interactive') {
+ return interactiveScript;
+ }
+
+ eachReverse(scripts(), function (script) {
+ if (script.readyState === 'interactive') {
+ return (interactiveScript = script);
+ }
+ });
+ return interactiveScript;
+ }
+
+ //Look for a data-main script attribute, which could also adjust the baseUrl.
+ if (isBrowser) {
+ //Figure out baseUrl. Get it from the script tag with require.js in it.
+ eachReverse(scripts(), function (script) {
+ //Set the 'head' where we can append children by
+ //using the script's parent.
+ if (!head) {
+ head = script.parentNode;
+ }
+
+ //Look for a data-main attribute to set main script for the page
+ //to load. If it is there, the path to data main becomes the
+ //baseUrl, if it is not already set.
+ dataMain = script.getAttribute('data-main');
+ if (dataMain) {
+ //Set final baseUrl if there is not already an explicit one.
+ if (!cfg.baseUrl) {
+ //Pull off the directory of data-main for use as the
+ //baseUrl.
+ src = dataMain.split('/');
+ mainScript = src.pop();
+ subPath = src.length ? src.join('/') + '/' : './';
+
+ cfg.baseUrl = subPath;
+ dataMain = mainScript;
+ }
+
+ //Strip off any trailing .js since dataMain is now
+ //like a module name.
+ dataMain = dataMain.replace(jsSuffixRegExp, '');
+
+ //Put the data-main script in the files to load.
+ cfg.deps = cfg.deps ? cfg.deps.concat(dataMain) : [dataMain];
+
+ return true;
+ }
+ });
+ }
+
+ /**
+ * The function that handles definitions of modules. Differs from
+ * require() in that a string for the module should be the first argument,
+ * and the function to execute after dependencies are loaded should
+ * return a value to define the module corresponding to the first argument's
+ * name.
+ */
+ define = function (name, deps, callback) {
+ var node, context;
+
+ //Allow for anonymous modules
+ if (typeof name !== 'string') {
+ //Adjust args appropriately
+ callback = deps;
+ deps = name;
+ name = null;
+ }
+
+ //This module may not have dependencies
+ if (!isArray(deps)) {
+ callback = deps;
+ deps = [];
+ }
+
+ //If no name, and callback is a function, then figure out if it a
+ //CommonJS thing with dependencies.
+ if (!deps.length && isFunction(callback)) {
+ //Remove comments from the callback string,
+ //look for require calls, and pull them into the dependencies,
+ //but only if there are function args.
+ if (callback.length) {
+ callback
+ .toString()
+ .replace(commentRegExp, '')
+ .replace(cjsRequireRegExp, function (match, dep) {
+ deps.push(dep);
+ });
+
+ //May be a CommonJS thing even without require calls, but still
+ //could use exports, and module. Avoid doing exports and module
+ //work though if it just needs require.
+ //REQUIRES the function to expect the CommonJS variables in the
+ //order listed below.
+ deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps);
+ }
+ }
+
+ //If in IE 6-8 and hit an anonymous define() call, do the interactive
+ //work.
+ if (useInteractive) {
+ node = currentlyAddingScript || getInteractiveScript();
+ if (node) {
+ if (!name) {
+ name = node.getAttribute('data-requiremodule');
+ }
+ context = contexts[node.getAttribute('data-requirecontext')];
+ }
+ }
+
+ //Always save off evaluating the def call until the script onload handler.
+ //This allows multiple modules to be in a file without prematurely
+ //tracing dependencies, and allows for anonymous module support,
+ //where the module name is not known until the script onload event
+ //occurs. If no context, use the global queue, and get it processed
+ //in the onscript load callback.
+ (context ? context.defQueue : globalDefQueue).push([name, deps, callback]);
+ };
+
+ define.amd = {
+ jQuery: true
+ };
+
+
+ /**
+ * Executes the text. Normally just uses eval, but can be modified
+ * to use a better, environment-specific call. Only used for transpiling
+ * loader plugins, not for plain JS modules.
+ * @param {String} text the text to execute/evaluate.
+ */
+ req.exec = function (text) {
+ /*jslint evil: true */
+ return eval(text);
+ };
+
+ //Set up with config info.
+ req(cfg);
+}(this));
diff --git a/scripts/lib/signals-1.0.0.js b/scripts/lib/signals-1.0.0.js
new file mode 100755
index 0000000..2615d26
--- /dev/null
+++ b/scripts/lib/signals-1.0.0.js
@@ -0,0 +1,445 @@
+/*jslint onevar:true, undef:true, newcap:true, regexp:true, bitwise:true, maxerr:50, indent:4, white:false, nomen:false, plusplus:false */
+/*global define:false, require:false, exports:false, module:false, signals:false */
+
+/** @license
+ * JS Signals
+ * Released under the MIT license
+ * Author: Miller Medeiros
+ * Version: 1.0.0 - Build: 268 (2012/11/29 05:48 PM)
+ */
+
+(function(global){
+
+ // SignalBinding -------------------------------------------------
+ //================================================================
+
+ /**
+ * Object that represents a binding between a Signal and a listener function.
+ *
- This is an internal constructor and shouldn't be called by regular users.
+ *
- inspired by Joa Ebert AS3 SignalBinding and Robert Penner's Slot classes.
+ * @author Miller Medeiros
+ * @constructor
+ * @internal
+ * @name SignalBinding
+ * @param {Signal} signal Reference to Signal object that listener is currently bound to.
+ * @param {Function} listener Handler function bound to the signal.
+ * @param {boolean} isOnce If binding should be executed just once.
+ * @param {Object} [listenerContext] Context on which listener will be executed (object that should represent the `this` variable inside listener function).
+ * @param {Number} [priority] The priority level of the event listener. (default = 0).
+ */
+ function SignalBinding(signal, listener, isOnce, listenerContext, priority) {
+
+ /**
+ * Handler function bound to the signal.
+ * @type Function
+ * @private
+ */
+ this._listener = listener;
+
+ /**
+ * If binding should be executed just once.
+ * @type boolean
+ * @private
+ */
+ this._isOnce = isOnce;
+
+ /**
+ * Context on which listener will be executed (object that should represent the `this` variable inside listener function).
+ * @memberOf SignalBinding.prototype
+ * @name context
+ * @type Object|undefined|null
+ */
+ this.context = listenerContext;
+
+ /**
+ * Reference to Signal object that listener is currently bound to.
+ * @type Signal
+ * @private
+ */
+ this._signal = signal;
+
+ /**
+ * Listener priority
+ * @type Number
+ * @private
+ */
+ this._priority = priority || 0;
+ }
+
+ SignalBinding.prototype = {
+
+ /**
+ * If binding is active and should be executed.
+ * @type boolean
+ */
+ active : true,
+
+ /**
+ * Default parameters passed to listener during `Signal.dispatch` and `SignalBinding.execute`. (curried parameters)
+ * @type Array|null
+ */
+ params : null,
+
+ /**
+ * Call listener passing arbitrary parameters.
+ * If binding was added using `Signal.addOnce()` it will be automatically removed from signal dispatch queue, this method is used internally for the signal dispatch.
+ * @param {Array} [paramsArr] Array of parameters that should be passed to the listener
+ * @return {*} Value returned by the listener.
+ */
+ execute : function (paramsArr) {
+ var handlerReturn, params;
+ if (this.active && !!this._listener) {
+ params = this.params? this.params.concat(paramsArr) : paramsArr;
+ handlerReturn = this._listener.apply(this.context, params);
+ if (this._isOnce) {
+ this.detach();
+ }
+ }
+ return handlerReturn;
+ },
+
+ /**
+ * Detach binding from signal.
+ * - alias to: mySignal.remove(myBinding.getListener());
+ * @return {Function|null} Handler function bound to the signal or `null` if binding was previously detached.
+ */
+ detach : function () {
+ return this.isBound()? this._signal.remove(this._listener, this.context) : null;
+ },
+
+ /**
+ * @return {Boolean} `true` if binding is still bound to the signal and have a listener.
+ */
+ isBound : function () {
+ return (!!this._signal && !!this._listener);
+ },
+
+ /**
+ * @return {boolean} If SignalBinding will only be executed once.
+ */
+ isOnce : function () {
+ return this._isOnce;
+ },
+
+ /**
+ * @return {Function} Handler function bound to the signal.
+ */
+ getListener : function () {
+ return this._listener;
+ },
+
+ /**
+ * @return {Signal} Signal that listener is currently bound to.
+ */
+ getSignal : function () {
+ return this._signal;
+ },
+
+ /**
+ * Delete instance properties
+ * @private
+ */
+ _destroy : function () {
+ delete this._signal;
+ delete this._listener;
+ delete this.context;
+ },
+
+ /**
+ * @return {string} String representation of the object.
+ */
+ toString : function () {
+ return '[SignalBinding isOnce:' + this._isOnce +', isBound:'+ this.isBound() +', active:' + this.active + ']';
+ }
+
+ };
+
+
+/*global SignalBinding:false*/
+
+ // Signal --------------------------------------------------------
+ //================================================================
+
+ function validateListener(listener, fnName) {
+ if (typeof listener !== 'function') {
+ throw new Error( 'listener is a required param of {fn}() and should be a Function.'.replace('{fn}', fnName) );
+ }
+ }
+
+ /**
+ * Custom event broadcaster
+ *
- inspired by Robert Penner's AS3 Signals.
+ * @name Signal
+ * @author Miller Medeiros
+ * @constructor
+ */
+ function Signal() {
+ /**
+ * @type Array.
+ * @private
+ */
+ this._bindings = [];
+ this._prevParams = null;
+
+ // enforce dispatch to aways work on same context (#47)
+ var self = this;
+ this.dispatch = function(){
+ Signal.prototype.dispatch.apply(self, arguments);
+ };
+ }
+
+ Signal.prototype = {
+
+ /**
+ * Signals Version Number
+ * @type String
+ * @const
+ */
+ VERSION : '1.0.0',
+
+ /**
+ * If Signal should keep record of previously dispatched parameters and
+ * automatically execute listener during `add()`/`addOnce()` if Signal was
+ * already dispatched before.
+ * @type boolean
+ */
+ memorize : false,
+
+ /**
+ * @type boolean
+ * @private
+ */
+ _shouldPropagate : true,
+
+ /**
+ * If Signal is active and should broadcast events.
+ * IMPORTANT: Setting this property during a dispatch will only affect the next dispatch, if you want to stop the propagation of a signal use `halt()` instead.
+ * @type boolean
+ */
+ active : true,
+
+ /**
+ * @param {Function} listener
+ * @param {boolean} isOnce
+ * @param {Object} [listenerContext]
+ * @param {Number} [priority]
+ * @return {SignalBinding}
+ * @private
+ */
+ _registerListener : function (listener, isOnce, listenerContext, priority) {
+
+ var prevIndex = this._indexOfListener(listener, listenerContext),
+ binding;
+
+ if (prevIndex !== -1) {
+ binding = this._bindings[prevIndex];
+ if (binding.isOnce() !== isOnce) {
+ throw new Error('You cannot add'+ (isOnce? '' : 'Once') +'() then add'+ (!isOnce? '' : 'Once') +'() the same listener without removing the relationship first.');
+ }
+ } else {
+ binding = new SignalBinding(this, listener, isOnce, listenerContext, priority);
+ this._addBinding(binding);
+ }
+
+ if(this.memorize && this._prevParams){
+ binding.execute(this._prevParams);
+ }
+
+ return binding;
+ },
+
+ /**
+ * @param {SignalBinding} binding
+ * @private
+ */
+ _addBinding : function (binding) {
+ //simplified insertion sort
+ var n = this._bindings.length;
+ do { --n; } while (this._bindings[n] && binding._priority <= this._bindings[n]._priority);
+ this._bindings.splice(n + 1, 0, binding);
+ },
+
+ /**
+ * @param {Function} listener
+ * @return {number}
+ * @private
+ */
+ _indexOfListener : function (listener, context) {
+ var n = this._bindings.length,
+ cur;
+ while (n--) {
+ cur = this._bindings[n];
+ if (cur._listener === listener && cur.context === context) {
+ return n;
+ }
+ }
+ return -1;
+ },
+
+ /**
+ * Check if listener was attached to Signal.
+ * @param {Function} listener
+ * @param {Object} [context]
+ * @return {boolean} if Signal has the specified listener.
+ */
+ has : function (listener, context) {
+ return this._indexOfListener(listener, context) !== -1;
+ },
+
+ /**
+ * Add a listener to the signal.
+ * @param {Function} listener Signal handler function.
+ * @param {Object} [listenerContext] Context on which listener will be executed (object that should represent the `this` variable inside listener function).
+ * @param {Number} [priority] The priority level of the event listener. Listeners with higher priority will be executed before listeners with lower priority. Listeners with same priority level will be executed at the same order as they were added. (default = 0)
+ * @return {SignalBinding} An Object representing the binding between the Signal and listener.
+ */
+ add : function (listener, listenerContext, priority) {
+ validateListener(listener, 'add');
+ return this._registerListener(listener, false, listenerContext, priority);
+ },
+
+ /**
+ * Add listener to the signal that should be removed after first execution (will be executed only once).
+ * @param {Function} listener Signal handler function.
+ * @param {Object} [listenerContext] Context on which listener will be executed (object that should represent the `this` variable inside listener function).
+ * @param {Number} [priority] The priority level of the event listener. Listeners with higher priority will be executed before listeners with lower priority. Listeners with same priority level will be executed at the same order as they were added. (default = 0)
+ * @return {SignalBinding} An Object representing the binding between the Signal and listener.
+ */
+ addOnce : function (listener, listenerContext, priority) {
+ validateListener(listener, 'addOnce');
+ return this._registerListener(listener, true, listenerContext, priority);
+ },
+
+ /**
+ * Remove a single listener from the dispatch queue.
+ * @param {Function} listener Handler function that should be removed.
+ * @param {Object} [context] Execution context (since you can add the same handler multiple times if executing in a different context).
+ * @return {Function} Listener handler function.
+ */
+ remove : function (listener, context) {
+ validateListener(listener, 'remove');
+
+ var i = this._indexOfListener(listener, context);
+ if (i !== -1) {
+ this._bindings[i]._destroy(); //no reason to a SignalBinding exist if it isn't attached to a signal
+ this._bindings.splice(i, 1);
+ }
+ return listener;
+ },
+
+ /**
+ * Remove all listeners from the Signal.
+ */
+ removeAll : function () {
+ var n = this._bindings.length;
+ while (n--) {
+ this._bindings[n]._destroy();
+ }
+ this._bindings.length = 0;
+ },
+
+ /**
+ * @return {number} Number of listeners attached to the Signal.
+ */
+ getNumListeners : function () {
+ return this._bindings.length;
+ },
+
+ /**
+ * Stop propagation of the event, blocking the dispatch to next listeners on the queue.
+ * IMPORTANT: should be called only during signal dispatch, calling it before/after dispatch won't affect signal broadcast.
+ * @see Signal.prototype.disable
+ */
+ halt : function () {
+ this._shouldPropagate = false;
+ },
+
+ /**
+ * Dispatch/Broadcast Signal to all listeners added to the queue.
+ * @param {...*} [params] Parameters that should be passed to each handler.
+ */
+ dispatch : function (params) {
+ if (! this.active) {
+ return;
+ }
+
+ var paramsArr = Array.prototype.slice.call(arguments),
+ n = this._bindings.length,
+ bindings;
+
+ if (this.memorize) {
+ this._prevParams = paramsArr;
+ }
+
+ if (! n) {
+ //should come after memorize
+ return;
+ }
+
+ bindings = this._bindings.slice(); //clone array in case add/remove items during dispatch
+ this._shouldPropagate = true; //in case `halt` was called before dispatch or during the previous dispatch.
+
+ //execute all callbacks until end of the list or until a callback returns `false` or stops propagation
+ //reverse loop since listeners with higher priority will be added at the end of the list
+ do { n--; } while (bindings[n] && this._shouldPropagate && bindings[n].execute(paramsArr) !== false);
+ },
+
+ /**
+ * Forget memorized arguments.
+ * @see Signal.memorize
+ */
+ forget : function(){
+ this._prevParams = null;
+ },
+
+ /**
+ * Remove all bindings from signal and destroy any reference to external objects (destroy Signal object).
+ * IMPORTANT: calling any method on the signal instance after calling dispose will throw errors.
+ */
+ dispose : function () {
+ this.removeAll();
+ delete this._bindings;
+ delete this._prevParams;
+ },
+
+ /**
+ * @return {string} String representation of the object.
+ */
+ toString : function () {
+ return '[Signal active:'+ this.active +' numListeners:'+ this.getNumListeners() +']';
+ }
+
+ };
+
+
+ // Namespace -----------------------------------------------------
+ //================================================================
+
+ /**
+ * Signals namespace
+ * @namespace
+ * @name signals
+ */
+ var signals = Signal;
+
+ /**
+ * Custom event broadcaster
+ * @see Signal
+ */
+ // alias for backwards compatibility (see #gh-44)
+ signals.Signal = Signal;
+
+
+
+ //exports to multiple environments
+ if(typeof define === 'function' && define.amd){ //AMD
+ define(function () { return signals; });
+ } else if (typeof module !== 'undefined' && module.exports){ //node
+ module.exports = signals;
+ } else { //browser
+ //use string because of Google closure compiler ADVANCED_MODE
+ /*jslint sub:true */
+ global['signals'] = signals;
+ }
+
+}(this));
diff --git a/scripts/src/controls.js b/scripts/src/controls.js
new file mode 100644
index 0000000..3c44f42
--- /dev/null
+++ b/scripts/src/controls.js
@@ -0,0 +1,62 @@
+/*global define*/
+define(
+ function()
+ {
+ var values = { };
+ var is_initialized = false;
+ var signals;
+ var timeout_id;
+
+ function init( shared )
+ {
+ signals = shared.signals;
+
+ if ( shared.feature['query-selector-all'] )
+ {
+ var wrapper = document.getElementById( 'controls' );
+ var controls = document.querySelectorAll( '.control-input' );
+
+ wrapper.className += ' is-active';
+
+ for ( var i = 0; i < controls.length; i++ )
+ {
+ var control = controls[i];
+
+ control.addEventListener( 'change', controlUpdated, false );
+ updateValue( control.id, control.value );
+ }
+
+ is_initialized = true;
+
+ signals['control-updated'].dispatch( values );
+ }
+ }
+
+ function controlUpdated( event )
+ {
+ var target = event.target;
+
+ clearTimeout( timeout_id );
+
+ timeout_id = setTimeout(
+ function()
+ {
+ updateValue( target.id, target.value );
+ },
+ 200
+ );
+ }
+
+ function updateValue( key, value )
+ {
+ values[key] = value;
+
+ if ( is_initialized )
+ {
+ signals['control-updated'].dispatch( values );
+ }
+ }
+
+ return { init: init };
+ }
+);
\ No newline at end of file
diff --git a/scripts/src/dragdrop.js b/scripts/src/dragdrop.js
new file mode 100644
index 0000000..158a386
--- /dev/null
+++ b/scripts/src/dragdrop.js
@@ -0,0 +1,43 @@
+/*global define*/
+define(
+ function()
+ {
+ var signals;
+ var reader;
+ var feature;
+
+ function init( shared )
+ {
+ feature = shared.feature;
+ signals = shared.signals;
+
+ if ( feature['drag-drop' ] && feature['file-api' ] )
+ {
+ document.addEventListener( 'drop', dropped, false );
+ document.addEventListener( 'dragover', preventDefault, false );
+ document.addEventListener( 'dragleave', preventDefault, false );
+
+ reader = new FileReader();
+ reader.addEventListener( 'load', fileLoaded, false );
+ }
+ }
+
+ function preventDefault( event )
+ {
+ event.preventDefault();
+ }
+
+ function dropped( event )
+ {
+ event.preventDefault();
+ reader.readAsDataURL( event.dataTransfer.files[0] );
+ }
+
+ function fileLoaded( event )
+ {
+ signals['set-new-src'].dispatch( event.target.result );
+ }
+
+ return { init: init };
+ }
+);
\ No newline at end of file
diff --git a/scripts/src/export-png.js b/scripts/src/export-png.js
new file mode 100644
index 0000000..2bad560
--- /dev/null
+++ b/scripts/src/export-png.js
@@ -0,0 +1,31 @@
+/*global define*/
+define(
+ function()
+ {
+ var signals;
+ var png_button;
+
+ function init( shared )
+ {
+ signals = shared.signals;
+ png_button = document.getElementById( 'png-button' );
+
+ signals['export-png'].add( generatePNG );
+ signals['control-updated'].add( hideLink );
+ png_button.addEventListener( 'click', hideLink, false );
+ }
+
+ function generatePNG( data_url )
+ {
+ png_button.href = data_url;
+ png_button.classList.add( 'is-active' );
+ }
+
+ function hideLink()
+ {
+ png_button.classList.remove( 'is-active' );
+ }
+
+ return { init: init };
+ }
+);
\ No newline at end of file
diff --git a/scripts/src/image.js b/scripts/src/image.js
new file mode 100644
index 0000000..dfb7419
--- /dev/null
+++ b/scripts/src/image.js
@@ -0,0 +1,45 @@
+/*global define*/
+define(
+ function()
+ {
+ var signals;
+ var image;
+ var initialized = false;
+
+ function init( shared )
+ {
+ signals = shared.signals;
+ image = new Image();
+
+ signals['set-new-src'].add( setSrc );
+
+ image.addEventListener( 'load', imageLoaded, false );
+
+ // the image "Abraham Lincoln November 1863" is public domain:
+ // https://en.wikipedia.org/wiki/File:Abraham_Lincoln_November_1863.jpg
+ setSrc( 'lincoln.jpg' );
+ }
+
+ function imageLoaded()
+ {
+ signals['image-loaded'].dispatch( image );
+ initialized = true;
+ }
+
+ function setSrc( src )
+ {
+ image.src = src;
+
+ if (
+ initialized &&
+ image.naturalWidth !== undefined &&
+ image.naturalWidth !== 0
+ )
+ {
+ signals['image-loaded'].dispatch( image );
+ }
+ }
+
+ return { init: init };
+ }
+);
\ No newline at end of file
diff --git a/scripts/src/main.js b/scripts/src/main.js
new file mode 100644
index 0000000..eea64c7
--- /dev/null
+++ b/scripts/src/main.js
@@ -0,0 +1,75 @@
+/*global require, requirejs, define, Modernizr, _basepath_ */
+// http://requirejs.org/docs/api.html#config
+var path = typeof _basepath_ === 'string' ? _basepath_ + '/' : '';
+requirejs.config(
+ {
+ baseUrl: path + 'scripts/',
+ waitSeconds: 5,
+ urlArgs: 'bust=' + ( new Date() ).getTime(),
+ shim: {
+ 'lib/delaunay': { exports: 'triangulate' }
+ }
+ }
+);
+
+require(
+ [
+ 'src/process',
+ 'src/image',
+ 'src/dragdrop',
+ 'src/controls',
+ 'src/export-png',
+ 'src/save-button',
+ 'aux/feature-test',
+ 'lib/signals-1.0.0',
+ 'lib/html5slider'
+ ],
+ function(
+ process,
+ image,
+ dragdrop,
+ controls,
+ png,
+ save_button,
+ testFeatures,
+ Signal
+ )
+ {
+ testFeatures( init, showError );
+
+ function init( supported_features )
+ {
+ var shared = {
+ feature: supported_features,
+ signals: {
+ 'image-loaded' : new Signal(),
+ 'set-new-src' : new Signal(),
+ 'control-updated' : new Signal(),
+ 'export-png' : new Signal(),
+ 'saved' : new Signal()
+ }
+ };
+
+ process.init( shared );
+ dragdrop.init( shared );
+ controls.init( shared );
+ png.init( shared );
+ save_button.init( shared );
+ image.init( shared );
+ }
+
+ function showError( required_features )
+ {
+ var message = document.createElement( 'div' );
+
+ var message_text = 'sorry. it looks like your browser is missing some of the features ';
+ message_text += '(' + required_features.join( ', ' ) + ') that are required to run this ';
+ message_text += 'experiment.';
+
+ message.innerText = message_text;
+ message.className = 'missing-feature';
+
+ document.getElementsByTagName( 'body' )[0].appendChild( message );
+ }
+ }
+);
\ No newline at end of file
diff --git a/scripts/src/process.js b/scripts/src/process.js
new file mode 100644
index 0000000..0c8c6e6
--- /dev/null
+++ b/scripts/src/process.js
@@ -0,0 +1,125 @@
+/*global define, requestAnimationFrame*/
+define(
+ [ 'aux/distort', 'aux/canvas', 'lib/raf' ],
+ function( distort, canvas_helper )
+ {
+ var tmp_canvas = document.createElement( 'canvas' );
+ var tmp_ctx = tmp_canvas.getContext( '2d' );
+
+ var canvas = document.getElementById( 'canvas' );
+ var ctx = canvas.getContext( '2d' );
+
+ var is_processing = false;
+ var values;
+ var image;
+ var signals;
+ var image_data;
+ var canvas_size;
+
+ function init( shared )
+ {
+ signals = shared.signals;
+
+ signals['image-loaded'].add( generate );
+ signals['control-updated'].add( controlsUpdated );
+ signals['saved'].add( exportData );
+ }
+
+ function controlsUpdated( new_values )
+ {
+ values = getAdjustedValues( new_values );
+
+ update();
+ }
+
+ function generate( img )
+ {
+ if ( ! is_processing )
+ {
+ image = img;
+ processImage( image );
+ }
+ }
+
+ function requestTick()
+ {
+ if ( ! is_processing )
+ {
+ requestAnimationFrame( update );
+ }
+
+ is_processing = true;
+ }
+
+ function update()
+ {
+ if ( image )
+ {
+ processImage( image );
+ }
+
+ else
+ {
+ is_processing = false;
+ }
+ }
+
+ function processImage( img )
+ {
+ is_processing = true;
+
+ canvas_helper.resize( tmp_canvas, img );
+ canvas_helper.resize( canvas, img );
+
+ tmp_ctx.drawImage( img, 0, 0 );
+
+ image_data = tmp_ctx.getImageData( 0, 0, tmp_canvas.width, tmp_canvas.height );
+
+ distort( image_data, values, draw );
+ }
+
+ function draw( image_data )
+ {
+ ctx.clearRect( 0, 0, canvas.width, canvas.height );
+ tmp_ctx.clearRect( 0, 0, tmp_canvas.width, tmp_canvas.height );
+
+ canvas_helper.resize( canvas, image_data );
+ ctx.putImageData( image_data, 0, 0 );
+
+ is_processing = false;
+ image_data = null;
+ }
+
+ function exportData()
+ {
+ signals['export-png'].dispatch( canvas.toDataURL( 'image/png' ) );
+ }
+
+ function getAdjustedValues( new_values )
+ {
+ var result = { };
+
+ for ( var key in new_values )
+ {
+ if (
+ key === 'horizontal' ||
+ key === 'vertical'
+ )
+ {
+ result[key] = parseFloat( new_values[key] );
+ }
+
+ else
+ {
+ result[key] = parseInt( new_values[key], 10 );
+ }
+ }
+
+ key = null;
+
+ return result;
+ }
+
+ return { init: init };
+ }
+);
\ No newline at end of file
diff --git a/scripts/src/save-button.js b/scripts/src/save-button.js
new file mode 100644
index 0000000..089cf5a
--- /dev/null
+++ b/scripts/src/save-button.js
@@ -0,0 +1,25 @@
+/*global define*/
+define(
+ function()
+ {
+ var signals;
+ var save_button;
+
+ function init( shared )
+ {
+ signals = shared.signals;
+ save_button = document.getElementById( 'save-button' );
+
+ save_button.addEventListener( 'click', buttonClicked, false );
+ }
+
+ function buttonClicked( event )
+ {
+ event.preventDefault();
+
+ signals['saved'].dispatch();
+ }
+
+ return { init: init };
+ }
+);
\ No newline at end of file
diff --git a/styles/global.css b/styles/global.css
new file mode 100644
index 0000000..f7c31a3
--- /dev/null
+++ b/styles/global.css
@@ -0,0 +1,130 @@
+*
+{
+ margin: 0;
+ padding: 0;
+}
+
+body
+{
+ padding: 50px;
+ font-family: sans-serif;
+ color: #666;
+ line-height: 18px;
+ font-size: 12px;
+}
+
+a
+{
+ color: #06f;
+ text-decoration: none;
+}
+
+a:hover
+{
+ text-decoration: underline;
+}
+
+.button
+{
+ background-color: #eaeaea;
+ padding: 5px 9px;
+ display: inline-block;
+ color: #06f;
+ font-weight: normal;
+ border-radius: 2px;
+ cursor: pointer;
+ border: none;
+ font-family: sans-serif;
+ font-size: 12px;
+ text-decoration: none;
+}
+
+.button:hover
+{
+ background-color: #06f;
+ color: #fff;
+}
+
+.headline
+{
+ font-size: 12px;
+ color: #333;
+ margin-bottom: 10px;
+}
+
+.content,
+.missing-feature
+{
+ max-width: 650px;
+}
+
+#controls
+{
+ float: left;
+ margin-top: 30px;
+ display: none;
+}
+
+#controls.is-active
+{
+ display: block;
+}
+
+ .control-wrapper
+ {
+ float: left;
+ width: 110px;
+ margin-right: 20px;
+ }
+
+ .control-label
+ {
+ display: block;
+ color: #666;
+ }
+
+ .control-input
+ {
+ display: block;
+ width: 100px;
+ }
+
+#canvas
+{
+ clear: both;
+ float: left;
+ margin-top: 30px;
+ display: block;
+}
+
+.export-wrapper
+{
+ clear: both;
+ float: left;
+ margin-top: 30px;
+}
+
+ .download-link
+ {
+ display: none;
+ }
+
+ .download-link.is-active
+ {
+ display: inline-block;
+ margin-left: 15px;
+ }
+
+ .download-link span
+ {
+ color: #999;
+ display: inline-block;
+ text-decoration: none;
+ margin-left: 4px;
+ }
+
+
+.missing-feature
+{
+ clear: both;
+}
\ No newline at end of file