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commit e44fcff53813778f3850988a8d6d7c688184fd6e 0 parents
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Showing with 15,343 additions and 0 deletions.
  1. BIN  .DS_Store
  2. +17 −0 .project
  3. 0  README.md
  4. +54 −0 index.html
  5. BIN  src/.DS_Store
  6. +1,164 −0 src/documentcloud/backbone.js
  7. +845 −0 src/documentcloud/underscore.js
  8. +164 −0 src/easeljs/display/Bitmap.js
  9. +354 −0 src/easeljs/display/BitmapSequence.js
  10. +440 −0 src/easeljs/display/Container.js
  11. +664 −0 src/easeljs/display/DisplayObject.js
  12. +1,014 −0 src/easeljs/display/Graphics.js
  13. +130 −0 src/easeljs/display/Shadow.js
  14. +136 −0 src/easeljs/display/Shape.js
  15. +146 −0 src/easeljs/display/SpriteSheet.js
  16. +447 −0 src/easeljs/display/Stage.js
  17. +315 −0 src/easeljs/display/Text.js
  18. +129 −0 src/easeljs/events/MouseEvent.js
  19. +482 −0 src/easeljs/geom/Matrix2D.js
  20. +99 −0 src/easeljs/geom/Point.js
  21. +115 −0 src/easeljs/geom/Rectangle.js
  22. +232 −0 src/easeljs/utils/SpriteSheetUtils.js
  23. +359 −0 src/easeljs/utils/Ticker.js
  24. +68 −0 src/easeljs/utils/UID.js
  25. +221 −0 src/hunted/HuntedApp.js
  26. +104 −0 src/hunted/KeyboardInput.js
  27. +93 −0 src/hunted/PTUtils.js
  28. +68 −0 src/hunted/scrollers/ItemScroller.js
  29. +119 −0 src/hunted/scrollers/ParallaxScroller.js
  30. +37 −0 src/hunted/ships/ExhaustParticle.js
  31. +48 −0 src/hunted/ships/ExhaustPipe.js
  32. +38 −0 src/hunted/ships/Launcher.js
  33. +58 −0 src/hunted/ships/LauncherProjectile.js
  34. +57 −0 src/hunted/ships/Ship.js
  35. +49 −0 src/hunted/ships/ShipControlsAIAvoid.js
  36. +50 −0 src/hunted/ships/ShipControlsAIChase.js
  37. +23 −0 src/hunted/ships/ShipControlsAIWander.js
  38. +44 −0 src/hunted/ships/ShipControlsKeyboard.js
  39. +71 −0 src/hunted/ships/ShipEngineGeneric.js
  40. +66 −0 src/hunted/ships/ShipSkinGeneric.js
  41. +51 −0 src/hunted/ships/ShipSkinGoon.js
  42. +35 −0 src/hunted/stages/ScaleStage.js
  43. +44 −0 src/hunted/stages/TrackingStage.js
  44. +45 −0 src/jquery/README.md
  45. +6,240 −0 src/jquery/jquery-1.4.2.js
  46. +99 −0 src/jquery/jquery.hotkeys.js
  47. +3 −0  src/tests/Double.js
  48. +22 −0 src/tests/Fargle.js
  49. +46 −0 src/tests/HitTestTest.js
  50. +34 −0 src/tests/InheritanceTest.js
  51. +23 −0 src/tests/Jargle.js
  52. +54 −0 src/tests/PolarTest.js
  53. +107 −0 src/tests/privateTest.js
  54. +20 −0 styles.css
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17 .project
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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+ <name>2011-10-02-hunted</name>
+ <comment></comment>
+ <projects>
+ </projects>
+ <buildSpec>
+ <buildCommand>
+ <name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
+ <arguments>
+ </arguments>
+ </buildCommand>
+ </buildSpec>
+ <natures>
+ <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
+ </natures>
+</projectDescription>
0  README.md
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54 index.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+ <title>HUNTED!</title>
+
+ <link href="styles.css" rel="stylesheet" type="text/css" />
+
+ <!-- Import Underscore & Backbone -->
+ <script src="src/documentcloud/underscore.js"></script>
+ <script src="src/documentcloud/backbone.js"></script>
+
+ <!-- Import EaselJS Framework -->
+ <script src="src/easeljs/utils/UID.js"></script>
+ <script src="src/easeljs/display/SpriteSheet.js"></script>
+ <script src="src/easeljs/geom/Matrix2D.js"></script>
+ <script src="src/easeljs/geom/Point.js"></script>
+ <script src="src/easeljs/events/MouseEvent.js"></script>
+ <script src="src/easeljs/display/DisplayObject.js"></script>
+ <script src="src/easeljs/display/BitmapSequence.js"></script>
+ <script src="src/easeljs/display/Container.js"></script>
+ <script src="src/easeljs/display/Graphics.js"></script>
+ <script src="src/easeljs/display/Shape.js"></script>
+ <script src="src/easeljs/display/Stage.js"></script>
+ <script src="src/easeljs/display/Text.js"></script>
+ <script src="src/easeljs/utils/Ticker.js"></script>
+
+ <!-- Chunkulus script Ahoy! -->
+ <script src="src/hunted/HuntedApp.js"></script>
+ <script src="src/hunted/stages/ScaleStage.js"></script>
+ <script src="src/hunted/stages/TrackingStage.js"></script>
+ <script src="src/hunted/scrollers/ParallaxScroller.js"></script>
+ <script src="src/hunted/scrollers/ItemScroller.js"></script>
+ <script src="src/hunted/ships/ShipControlsKeyboard.js"></script>
+ <script src="src/hunted/ships/ExhaustPipe.js"></script>
+ <script src="src/hunted/ships/ExhaustParticle.js"></script>
+ <script src="src/hunted/ships/ShipEngineGeneric.js"></script>
+ <script src="src/hunted/ships/Ship.js"></script>
+ <script src="src/hunted/ships/ShipSkinGeneric.js"></script>
+ <script src="src/hunted/ships/ShipSkinGoon.js"></script>
+ <script src="src/hunted/ships/ShipControlsAIWander.js"></script>
+ <script src="src/hunted/ships/ShipControlsAIChase.js"></script>
+ <script src="src/hunted/ships/ShipControlsAIAvoid.js"></script>
+ <script src="src/hunted/ships/Launcher.js"></script>
+ <script src="src/hunted/ships/LauncherProjectile.js"></script>
+ <script src="src/hunted/KeyboardInput.js"></script>
+ <script src="src/hunted/PTUtils.js"></script>
+
+ </head>
+
+ <body onload="app = new HuntedApp;">
+ <canvas id="canvas"></canvas>
+ </body>
+</html>
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1,164 src/documentcloud/backbone.js
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+// Backbone.js 0.5.3
+// (c) 2010 Jeremy Ashkenas, DocumentCloud Inc.
+// Backbone may be freely distributed under the MIT license.
+// For all details and documentation:
+// http://documentcloud.github.com/backbone
+
+(function(){
+
+ // Initial Setup
+ // -------------
+
+ // Save a reference to the global object.
+ var root = this;
+
+ // Save the previous value of the `Backbone` variable.
+ var previousBackbone = root.Backbone;
+
+ // The top-level namespace. All public Backbone classes and modules will
+ // be attached to this. Exported for both CommonJS and the browser.
+ var Backbone;
+ if (typeof exports !== 'undefined') {
+ Backbone = exports;
+ } else {
+ Backbone = root.Backbone = {};
+ }
+
+ // Current version of the library. Keep in sync with `package.json`.
+ Backbone.VERSION = '0.5.3';
+
+ // Require Underscore, if we're on the server, and it's not already present.
+ var _ = root._;
+ if (!_ && (typeof require !== 'undefined')) _ = require('underscore')._;
+
+ // For Backbone's purposes, jQuery, Zepto, or Ender owns the `$` variable.
+ var $ = root.jQuery || root.Zepto || root.ender;
+
+ // Runs Backbone.js in *noConflict* mode, returning the `Backbone` variable
+ // to its previous owner. Returns a reference to this Backbone object.
+ Backbone.noConflict = function() {
+ root.Backbone = previousBackbone;
+ return this;
+ };
+
+ // Turn on `emulateHTTP` to support legacy HTTP servers. Setting this option will
+ // fake `"PUT"` and `"DELETE"` requests via the `_method` parameter and set a
+ // `X-Http-Method-Override` header.
+ Backbone.emulateHTTP = false;
+
+ // Turn on `emulateJSON` to support legacy servers that can't deal with direct
+ // `application/json` requests ... will encode the body as
+ // `application/x-www-form-urlencoded` instead and will send the model in a
+ // form param named `model`.
+ Backbone.emulateJSON = false;
+
+ // Backbone.Events
+ // -----------------
+
+ // A module that can be mixed in to *any object* in order to provide it with
+ // custom events. You may `bind` or `unbind` a callback function to an event;
+ // `trigger`-ing an event fires all callbacks in succession.
+ //
+ // var object = {};
+ // _.extend(object, Backbone.Events);
+ // object.bind('expand', function(){ alert('expanded'); });
+ // object.trigger('expand');
+ //
+ Backbone.Events = {
+
+ // Bind an event, specified by a string name, `ev`, to a `callback` function.
+ // Passing `"all"` will bind the callback to all events fired.
+ bind : function(ev, callback, context) {
+ var calls = this._callbacks || (this._callbacks = {});
+ var list = calls[ev] || (calls[ev] = []);
+ list.push([callback, context]);
+ return this;
+ },
+
+ // Remove one or many callbacks. If `callback` is null, removes all
+ // callbacks for the event. If `ev` is null, removes all bound callbacks
+ // for all events.
+ unbind : function(ev, callback) {
+ var calls;
+ if (!ev) {
+ this._callbacks = {};
+ } else if (calls = this._callbacks) {
+ if (!callback) {
+ calls[ev] = [];
+ } else {
+ var list = calls[ev];
+ if (!list) return this;
+ for (var i = 0, l = list.length; i < l; i++) {
+ if (list[i] && callback === list[i][0]) {
+ list[i] = null;
+ break;
+ }
+ }
+ }
+ }
+ return this;
+ },
+
+ // Trigger an event, firing all bound callbacks. Callbacks are passed the
+ // same arguments as `trigger` is, apart from the event name.
+ // Listening for `"all"` passes the true event name as the first argument.
+ trigger : function(eventName) {
+ var list, calls, ev, callback, args;
+ var both = 2;
+ if (!(calls = this._callbacks)) return this;
+ while (both--) {
+ ev = both ? eventName : 'all';
+ if (list = calls[ev]) {
+ for (var i = 0, l = list.length; i < l; i++) {
+ if (!(callback = list[i])) {
+ list.splice(i, 1); i--; l--;
+ } else {
+ args = both ? Array.prototype.slice.call(arguments, 1) : arguments;
+ callback[0].apply(callback[1] || this, args);
+ }
+ }
+ }
+ }
+ return this;
+ }
+
+ };
+
+ // Backbone.Model
+ // --------------
+
+ // Create a new model, with defined attributes. A client id (`cid`)
+ // is automatically generated and assigned for you.
+ Backbone.Model = function(attributes, options) {
+ var defaults;
+ attributes || (attributes = {});
+ if (defaults = this.defaults) {
+ if (_.isFunction(defaults)) defaults = defaults.call(this);
+ attributes = _.extend({}, defaults, attributes);
+ }
+ this.attributes = {};
+ this._escapedAttributes = {};
+ this.cid = _.uniqueId('c');
+ this.set(attributes, {silent : true});
+ this._changed = false;
+ this._previousAttributes = _.clone(this.attributes);
+ if (options && options.collection) this.collection = options.collection;
+ this.initialize(attributes, options);
+ };
+
+ // Attach all inheritable methods to the Model prototype.
+ _.extend(Backbone.Model.prototype, Backbone.Events, {
+
+ // A snapshot of the model's previous attributes, taken immediately
+ // after the last `"change"` event was fired.
+ _previousAttributes : null,
+
+ // Has the item been changed since the last `"change"` event?
+ _changed : false,
+
+ // The default name for the JSON `id` attribute is `"id"`. MongoDB and
+ // CouchDB users may want to set this to `"_id"`.
+ idAttribute : 'id',
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize : function(){},
+
+ // Return a copy of the model's `attributes` object.
+ toJSON : function() {
+ return _.clone(this.attributes);
+ },
+
+ // Get the value of an attribute.
+ get : function(attr) {
+ return this.attributes[attr];
+ },
+
+ // Get the HTML-escaped value of an attribute.
+ escape : function(attr) {
+ var html;
+ if (html = this._escapedAttributes[attr]) return html;
+ var val = this.attributes[attr];
+ return this._escapedAttributes[attr] = escapeHTML(val == null ? '' : '' + val);
+ },
+
+ // Returns `true` if the attribute contains a value that is not null
+ // or undefined.
+ has : function(attr) {
+ return this.attributes[attr] != null;
+ },
+
+ // Set a hash of model attributes on the object, firing `"change"` unless you
+ // choose to silence it.
+ set : function(attrs, options) {
+
+ // Extract attributes and options.
+ options || (options = {});
+ if (!attrs) return this;
+ if (attrs.attributes) attrs = attrs.attributes;
+ var now = this.attributes, escaped = this._escapedAttributes;
+
+ // Run validation.
+ if (!options.silent && this.validate && !this._performValidation(attrs, options)) return false;
+
+ // Check for changes of `id`.
+ if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
+
+ // We're about to start triggering change events.
+ var alreadyChanging = this._changing;
+ this._changing = true;
+
+ // Update attributes.
+ for (var attr in attrs) {
+ var val = attrs[attr];
+ if (!_.isEqual(now[attr], val)) {
+ now[attr] = val;
+ delete escaped[attr];
+ this._changed = true;
+ if (!options.silent) this.trigger('change:' + attr, this, val, options);
+ }
+ }
+
+ // Fire the `"change"` event, if the model has been changed.
+ if (!alreadyChanging && !options.silent && this._changed) this.change(options);
+ this._changing = false;
+ return this;
+ },
+
+ // Remove an attribute from the model, firing `"change"` unless you choose
+ // to silence it. `unset` is a noop if the attribute doesn't exist.
+ unset : function(attr, options) {
+ if (!(attr in this.attributes)) return this;
+ options || (options = {});
+ var value = this.attributes[attr];
+
+ // Run validation.
+ var validObj = {};
+ validObj[attr] = void 0;
+ if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false;
+
+ // Remove the attribute.
+ delete this.attributes[attr];
+ delete this._escapedAttributes[attr];
+ if (attr == this.idAttribute) delete this.id;
+ this._changed = true;
+ if (!options.silent) {
+ this.trigger('change:' + attr, this, void 0, options);
+ this.change(options);
+ }
+ return this;
+ },
+
+ // Clear all attributes on the model, firing `"change"` unless you choose
+ // to silence it.
+ clear : function(options) {
+ options || (options = {});
+ var attr;
+ var old = this.attributes;
+
+ // Run validation.
+ var validObj = {};
+ for (attr in old) validObj[attr] = void 0;
+ if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false;
+
+ this.attributes = {};
+ this._escapedAttributes = {};
+ this._changed = true;
+ if (!options.silent) {
+ for (attr in old) {
+ this.trigger('change:' + attr, this, void 0, options);
+ }
+ this.change(options);
+ }
+ return this;
+ },
+
+ // Fetch the model from the server. If the server's representation of the
+ // model differs from its current attributes, they will be overriden,
+ // triggering a `"change"` event.
+ fetch : function(options) {
+ options || (options = {});
+ var model = this;
+ var success = options.success;
+ options.success = function(resp, status, xhr) {
+ if (!model.set(model.parse(resp, xhr), options)) return false;
+ if (success) success(model, resp);
+ };
+ options.error = wrapError(options.error, model, options);
+ return (this.sync || Backbone.sync).call(this, 'read', this, options);
+ },
+
+ // Set a hash of model attributes, and sync the model to the server.
+ // If the server returns an attributes hash that differs, the model's
+ // state will be `set` again.
+ save : function(attrs, options) {
+ options || (options = {});
+ if (attrs && !this.set(attrs, options)) return false;
+ var model = this;
+ var success = options.success;
+ options.success = function(resp, status, xhr) {
+ if (!model.set(model.parse(resp, xhr), options)) return false;
+ if (success) success(model, resp, xhr);
+ };
+ options.error = wrapError(options.error, model, options);
+ var method = this.isNew() ? 'create' : 'update';
+ return (this.sync || Backbone.sync).call(this, method, this, options);
+ },
+
+ // Destroy this model on the server if it was already persisted. Upon success, the model is removed
+ // from its collection, if it has one.
+ destroy : function(options) {
+ options || (options = {});
+ if (this.isNew()) return this.trigger('destroy', this, this.collection, options);
+ var model = this;
+ var success = options.success;
+ options.success = function(resp) {
+ model.trigger('destroy', model, model.collection, options);
+ if (success) success(model, resp);
+ };
+ options.error = wrapError(options.error, model, options);
+ return (this.sync || Backbone.sync).call(this, 'delete', this, options);
+ },
+
+ // Default URL for the model's representation on the server -- if you're
+ // using Backbone's restful methods, override this to change the endpoint
+ // that will be called.
+ url : function() {
+ var base = getUrl(this.collection) || this.urlRoot || urlError();
+ if (this.isNew()) return base;
+ return base + (base.charAt(base.length - 1) == '/' ? '' : '/') + encodeURIComponent(this.id);
+ },
+
+ // **parse** converts a response into the hash of attributes to be `set` on
+ // the model. The default implementation is just to pass the response along.
+ parse : function(resp, xhr) {
+ return resp;
+ },
+
+ // Create a new model with identical attributes to this one.
+ clone : function() {
+ return new this.constructor(this);
+ },
+
+ // A model is new if it has never been saved to the server, and lacks an id.
+ isNew : function() {
+ return this.id == null;
+ },
+
+ // Call this method to manually fire a `change` event for this model.
+ // Calling this will cause all objects observing the model to update.
+ change : function(options) {
+ this.trigger('change', this, options);
+ this._previousAttributes = _.clone(this.attributes);
+ this._changed = false;
+ },
+
+ // Determine if the model has changed since the last `"change"` event.
+ // If you specify an attribute name, determine if that attribute has changed.
+ hasChanged : function(attr) {
+ if (attr) return this._previousAttributes[attr] != this.attributes[attr];
+ return this._changed;
+ },
+
+ // Return an object containing all the attributes that have changed, or false
+ // if there are no changed attributes. Useful for determining what parts of a
+ // view need to be updated and/or what attributes need to be persisted to
+ // the server.
+ changedAttributes : function(now) {
+ now || (now = this.attributes);
+ var old = this._previousAttributes;
+ var changed = false;
+ for (var attr in now) {
+ if (!_.isEqual(old[attr], now[attr])) {
+ changed = changed || {};
+ changed[attr] = now[attr];
+ }
+ }
+ return changed;
+ },
+
+ // Get the previous value of an attribute, recorded at the time the last
+ // `"change"` event was fired.
+ previous : function(attr) {
+ if (!attr || !this._previousAttributes) return null;
+ return this._previousAttributes[attr];
+ },
+
+ // Get all of the attributes of the model at the time of the previous
+ // `"change"` event.
+ previousAttributes : function() {
+ return _.clone(this._previousAttributes);
+ },
+
+ // Run validation against a set of incoming attributes, returning `true`
+ // if all is well. If a specific `error` callback has been passed,
+ // call that instead of firing the general `"error"` event.
+ _performValidation : function(attrs, options) {
+ var error = this.validate(attrs);
+ if (error) {
+ if (options.error) {
+ options.error(this, error, options);
+ } else {
+ this.trigger('error', this, error, options);
+ }
+ return false;
+ }
+ return true;
+ }
+
+ });
+
+ // Backbone.Collection
+ // -------------------
+
+ // Provides a standard collection class for our sets of models, ordered
+ // or unordered. If a `comparator` is specified, the Collection will maintain
+ // its models in sort order, as they're added and removed.
+ Backbone.Collection = function(models, options) {
+ options || (options = {});
+ if (options.comparator) this.comparator = options.comparator;
+ _.bindAll(this, '_onModelEvent', '_removeReference');
+ this._reset();
+ if (models) this.reset(models, {silent: true});
+ this.initialize.apply(this, arguments);
+ };
+
+ // Define the Collection's inheritable methods.
+ _.extend(Backbone.Collection.prototype, Backbone.Events, {
+
+ // The default model for a collection is just a **Backbone.Model**.
+ // This should be overridden in most cases.
+ model : Backbone.Model,
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize : function(){},
+
+ // The JSON representation of a Collection is an array of the
+ // models' attributes.
+ toJSON : function() {
+ return this.map(function(model){ return model.toJSON(); });
+ },
+
+ // Add a model, or list of models to the set. Pass **silent** to avoid
+ // firing the `added` event for every new model.
+ add : function(models, options) {
+ if (_.isArray(models)) {
+ for (var i = 0, l = models.length; i < l; i++) {
+ this._add(models[i], options);
+ }
+ } else {
+ this._add(models, options);
+ }
+ return this;
+ },
+
+ // Remove a model, or a list of models from the set. Pass silent to avoid
+ // firing the `removed` event for every model removed.
+ remove : function(models, options) {
+ if (_.isArray(models)) {
+ for (var i = 0, l = models.length; i < l; i++) {
+ this._remove(models[i], options);
+ }
+ } else {
+ this._remove(models, options);
+ }
+ return this;
+ },
+
+ // Get a model from the set by id.
+ get : function(id) {
+ if (id == null) return null;
+ return this._byId[id.id != null ? id.id : id];
+ },
+
+ // Get a model from the set by client id.
+ getByCid : function(cid) {
+ return cid && this._byCid[cid.cid || cid];
+ },
+
+ // Get the model at the given index.
+ at: function(index) {
+ return this.models[index];
+ },
+
+ // Force the collection to re-sort itself. You don't need to call this under normal
+ // circumstances, as the set will maintain sort order as each item is added.
+ sort : function(options) {
+ options || (options = {});
+ if (!this.comparator) throw new Error('Cannot sort a set without a comparator');
+ this.models = this.sortBy(this.comparator);
+ if (!options.silent) this.trigger('reset', this, options);
+ return this;
+ },
+
+ // Pluck an attribute from each model in the collection.
+ pluck : function(attr) {
+ return _.map(this.models, function(model){ return model.get(attr); });
+ },
+
+ // When you have more items than you want to add or remove individually,
+ // you can reset the entire set with a new list of models, without firing
+ // any `added` or `removed` events. Fires `reset` when finished.
+ reset : function(models, options) {
+ models || (models = []);
+ options || (options = {});
+ this.each(this._removeReference);
+ this._reset();
+ this.add(models, {silent: true});
+ if (!options.silent) this.trigger('reset', this, options);
+ return this;
+ },
+
+ // Fetch the default set of models for this collection, resetting the
+ // collection when they arrive. If `add: true` is passed, appends the
+ // models to the collection instead of resetting.
+ fetch : function(options) {
+ options || (options = {});
+ var collection = this;
+ var success = options.success;
+ options.success = function(resp, status, xhr) {
+ collection[options.add ? 'add' : 'reset'](collection.parse(resp, xhr), options);
+ if (success) success(collection, resp);
+ };
+ options.error = wrapError(options.error, collection, options);
+ return (this.sync || Backbone.sync).call(this, 'read', this, options);
+ },
+
+ // Create a new instance of a model in this collection. After the model
+ // has been created on the server, it will be added to the collection.
+ // Returns the model, or 'false' if validation on a new model fails.
+ create : function(model, options) {
+ var coll = this;
+ options || (options = {});
+ model = this._prepareModel(model, options);
+ if (!model) return false;
+ var success = options.success;
+ options.success = function(nextModel, resp, xhr) {
+ coll.add(nextModel, options);
+ if (success) success(nextModel, resp, xhr);
+ };
+ model.save(null, options);
+ return model;
+ },
+
+ // **parse** converts a response into a list of models to be added to the
+ // collection. The default implementation is just to pass it through.
+ parse : function(resp, xhr) {
+ return resp;
+ },
+
+ // Proxy to _'s chain. Can't be proxied the same way the rest of the
+ // underscore methods are proxied because it relies on the underscore
+ // constructor.
+ chain: function () {
+ return _(this.models).chain();
+ },
+
+ // Reset all internal state. Called when the collection is reset.
+ _reset : function(options) {
+ this.length = 0;
+ this.models = [];
+ this._byId = {};
+ this._byCid = {};
+ },
+
+ // Prepare a model to be added to this collection
+ _prepareModel: function(model, options) {
+ if (!(model instanceof Backbone.Model)) {
+ var attrs = model;
+ model = new this.model(attrs, {collection: this});
+ if (model.validate && !model._performValidation(attrs, options)) model = false;
+ } else if (!model.collection) {
+ model.collection = this;
+ }
+ return model;
+ },
+
+ // Internal implementation of adding a single model to the set, updating
+ // hash indexes for `id` and `cid` lookups.
+ // Returns the model, or 'false' if validation on a new model fails.
+ _add : function(model, options) {
+ options || (options = {});
+ model = this._prepareModel(model, options);
+ if (!model) return false;
+ var already = this.getByCid(model);
+ if (already) throw new Error(["Can't add the same model to a set twice", already.id]);
+ this._byId[model.id] = model;
+ this._byCid[model.cid] = model;
+ var index = options.at != null ? options.at :
+ this.comparator ? this.sortedIndex(model, this.comparator) :
+ this.length;
+ this.models.splice(index, 0, model);
+ model.bind('all', this._onModelEvent);
+ this.length++;
+ if (!options.silent) model.trigger('add', model, this, options);
+ return model;
+ },
+
+ // Internal implementation of removing a single model from the set, updating
+ // hash indexes for `id` and `cid` lookups.
+ _remove : function(model, options) {
+ options || (options = {});
+ model = this.getByCid(model) || this.get(model);
+ if (!model) return null;
+ delete this._byId[model.id];
+ delete this._byCid[model.cid];
+ this.models.splice(this.indexOf(model), 1);
+ this.length--;
+ if (!options.silent) model.trigger('remove', model, this, options);
+ this._removeReference(model);
+ return model;
+ },
+
+ // Internal method to remove a model's ties to a collection.
+ _removeReference : function(model) {
+ if (this == model.collection) {
+ delete model.collection;
+ }
+ model.unbind('all', this._onModelEvent);
+ },
+
+ // Internal method called every time a model in the set fires an event.
+ // Sets need to update their indexes when models change ids. All other
+ // events simply proxy through. "add" and "remove" events that originate
+ // in other collections are ignored.
+ _onModelEvent : function(ev, model, collection, options) {
+ if ((ev == 'add' || ev == 'remove') && collection != this) return;
+ if (ev == 'destroy') {
+ this._remove(model, options);
+ }
+ if (model && ev === 'change:' + model.idAttribute) {
+ delete this._byId[model.previous(model.idAttribute)];
+ this._byId[model.id] = model;
+ }
+ this.trigger.apply(this, arguments);
+ }
+
+ });
+
+ // Underscore methods that we want to implement on the Collection.
+ var methods = ['forEach', 'each', 'map', 'reduce', 'reduceRight', 'find', 'detect',
+ 'filter', 'select', 'reject', 'every', 'all', 'some', 'any', 'include',
+ 'contains', 'invoke', 'max', 'min', 'sortBy', 'sortedIndex', 'toArray', 'size',
+ 'first', 'rest', 'last', 'without', 'indexOf', 'lastIndexOf', 'isEmpty', 'groupBy'];
+
+ // Mix in each Underscore method as a proxy to `Collection#models`.
+ _.each(methods, function(method) {
+ Backbone.Collection.prototype[method] = function() {
+ return _[method].apply(_, [this.models].concat(_.toArray(arguments)));
+ };
+ });
+
+ // Backbone.Router
+ // -------------------
+
+ // Routers map faux-URLs to actions, and fire events when routes are
+ // matched. Creating a new one sets its `routes` hash, if not set statically.
+ Backbone.Router = function(options) {
+ options || (options = {});
+ if (options.routes) this.routes = options.routes;
+ this._bindRoutes();
+ this.initialize.apply(this, arguments);
+ };
+
+ // Cached regular expressions for matching named param parts and splatted
+ // parts of route strings.
+ var namedParam = /:([\w\d]+)/g;
+ var splatParam = /\*([\w\d]+)/g;
+ var escapeRegExp = /[-[\]{}()+?.,\\^$|#\s]/g;
+
+ // Set up all inheritable **Backbone.Router** properties and methods.
+ _.extend(Backbone.Router.prototype, Backbone.Events, {
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize : function(){},
+
+ // Manually bind a single named route to a callback. For example:
+ //
+ // this.route('search/:query/p:num', 'search', function(query, num) {
+ // ...
+ // });
+ //
+ route : function(route, name, callback) {
+ Backbone.history || (Backbone.history = new Backbone.History);
+ if (!_.isRegExp(route)) route = this._routeToRegExp(route);
+ Backbone.history.route(route, _.bind(function(fragment) {
+ var args = this._extractParameters(route, fragment);
+ callback.apply(this, args);
+ this.trigger.apply(this, ['route:' + name].concat(args));
+ }, this));
+ },
+
+ // Simple proxy to `Backbone.history` to save a fragment into the history.
+ navigate : function(fragment, triggerRoute) {
+ Backbone.history.navigate(fragment, triggerRoute);
+ },
+
+ // Bind all defined routes to `Backbone.history`. We have to reverse the
+ // order of the routes here to support behavior where the most general
+ // routes can be defined at the bottom of the route map.
+ _bindRoutes : function() {
+ if (!this.routes) return;
+ var routes = [];
+ for (var route in this.routes) {
+ routes.unshift([route, this.routes[route]]);
+ }
+ for (var i = 0, l = routes.length; i < l; i++) {
+ this.route(routes[i][0], routes[i][1], this[routes[i][1]]);
+ }
+ },
+
+ // Convert a route string into a regular expression, suitable for matching
+ // against the current location hash.
+ _routeToRegExp : function(route) {
+ route = route.replace(escapeRegExp, "\\$&")
+ .replace(namedParam, "([^\/]*)")
+ .replace(splatParam, "(.*?)");
+ return new RegExp('^' + route + '$');
+ },
+
+ // Given a route, and a URL fragment that it matches, return the array of
+ // extracted parameters.
+ _extractParameters : function(route, fragment) {
+ return route.exec(fragment).slice(1);
+ }
+
+ });
+
+ // Backbone.History
+ // ----------------
+
+ // Handles cross-browser history management, based on URL fragments. If the
+ // browser does not support `onhashchange`, falls back to polling.
+ Backbone.History = function() {
+ this.handlers = [];
+ _.bindAll(this, 'checkUrl');
+ };
+
+ // Cached regex for cleaning hashes.
+ var hashStrip = /^#*/;
+
+ // Cached regex for detecting MSIE.
+ var isExplorer = /msie [\w.]+/;
+
+ // Has the history handling already been started?
+ var historyStarted = false;
+
+ // Set up all inheritable **Backbone.History** properties and methods.
+ _.extend(Backbone.History.prototype, {
+
+ // The default interval to poll for hash changes, if necessary, is
+ // twenty times a second.
+ interval: 50,
+
+ // Get the cross-browser normalized URL fragment, either from the URL,
+ // the hash, or the override.
+ getFragment : function(fragment, forcePushState) {
+ if (fragment == null) {
+ if (this._hasPushState || forcePushState) {
+ fragment = window.location.pathname;
+ var search = window.location.search;
+ if (search) fragment += search;
+ } else {
+ fragment = window.location.hash;
+ }
+ }
+ fragment = decodeURIComponent(fragment.replace(hashStrip, ''));
+ if (!fragment.indexOf(this.options.root)) fragment = fragment.substr(this.options.root.length);
+ return fragment;
+ },
+
+ // Start the hash change handling, returning `true` if the current URL matches
+ // an existing route, and `false` otherwise.
+ start : function(options) {
+
+ // Figure out the initial configuration. Do we need an iframe?
+ // Is pushState desired ... is it available?
+ if (historyStarted) throw new Error("Backbone.history has already been started");
+ this.options = _.extend({}, {root: '/'}, this.options, options);
+ this._wantsPushState = !!this.options.pushState;
+ this._hasPushState = !!(this.options.pushState && window.history && window.history.pushState);
+ var fragment = this.getFragment();
+ var docMode = document.documentMode;
+ var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));
+ if (oldIE) {
+ this.iframe = $('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo('body')[0].contentWindow;
+ this.navigate(fragment);
+ }
+
+ // Depending on whether we're using pushState or hashes, and whether
+ // 'onhashchange' is supported, determine how we check the URL state.
+ if (this._hasPushState) {
+ $(window).bind('popstate', this.checkUrl);
+ } else if ('onhashchange' in window && !oldIE) {
+ $(window).bind('hashchange', this.checkUrl);
+ } else {
+ setInterval(this.checkUrl, this.interval);
+ }
+
+ // Determine if we need to change the base url, for a pushState link
+ // opened by a non-pushState browser.
+ this.fragment = fragment;
+ historyStarted = true;
+ var loc = window.location;
+ var atRoot = loc.pathname == this.options.root;
+ if (this._wantsPushState && !this._hasPushState && !atRoot) {
+ this.fragment = this.getFragment(null, true);
+ window.location.replace(this.options.root + '#' + this.fragment);
+ // Return immediately as browser will do redirect to new url
+ return true;
+ } else if (this._wantsPushState && this._hasPushState && atRoot && loc.hash) {
+ this.fragment = loc.hash.replace(hashStrip, '');
+ window.history.replaceState({}, document.title, loc.protocol + '//' + loc.host + this.options.root + this.fragment);
+ }
+
+ if (!this.options.silent) {
+ return this.loadUrl();
+ }
+ },
+
+ // Add a route to be tested when the fragment changes. Routes added later may
+ // override previous routes.
+ route : function(route, callback) {
+ this.handlers.unshift({route : route, callback : callback});
+ },
+
+ // Checks the current URL to see if it has changed, and if it has,
+ // calls `loadUrl`, normalizing across the hidden iframe.
+ checkUrl : function(e) {
+ var current = this.getFragment();
+ if (current == this.fragment && this.iframe) current = this.getFragment(this.iframe.location.hash);
+ if (current == this.fragment || current == decodeURIComponent(this.fragment)) return false;
+ if (this.iframe) this.navigate(current);
+ this.loadUrl() || this.loadUrl(window.location.hash);
+ },
+
+ // Attempt to load the current URL fragment. If a route succeeds with a
+ // match, returns `true`. If no defined routes matches the fragment,
+ // returns `false`.
+ loadUrl : function(fragmentOverride) {
+ var fragment = this.fragment = this.getFragment(fragmentOverride);
+ var matched = _.any(this.handlers, function(handler) {
+ if (handler.route.test(fragment)) {
+ handler.callback(fragment);
+ return true;
+ }
+ });
+ return matched;
+ },
+
+ // Save a fragment into the hash history. You are responsible for properly
+ // URL-encoding the fragment in advance. This does not trigger
+ // a `hashchange` event.
+ navigate : function(fragment, triggerRoute) {
+ var frag = (fragment || '').replace(hashStrip, '');
+ if (this.fragment == frag || this.fragment == decodeURIComponent(frag)) return;
+ if (this._hasPushState) {
+ var loc = window.location;
+ if (frag.indexOf(this.options.root) != 0) frag = this.options.root + frag;
+ this.fragment = frag;
+ window.history.pushState({}, document.title, loc.protocol + '//' + loc.host + frag);
+ } else {
+ window.location.hash = this.fragment = frag;
+ if (this.iframe && (frag != this.getFragment(this.iframe.location.hash))) {
+ this.iframe.document.open().close();
+ this.iframe.location.hash = frag;
+ }
+ }
+ if (triggerRoute) this.loadUrl(fragment);
+ }
+
+ });
+
+ // Backbone.View
+ // -------------
+
+ // Creating a Backbone.View creates its initial element outside of the DOM,
+ // if an existing element is not provided...
+ Backbone.View = function(options) {
+ this.cid = _.uniqueId('view');
+ this._configure(options || {});
+ this._ensureElement();
+ this.delegateEvents();
+ this.initialize.apply(this, arguments);
+ };
+
+ // Element lookup, scoped to DOM elements within the current view.
+ // This should be prefered to global lookups, if you're dealing with
+ // a specific view.
+ var selectorDelegate = function(selector) {
+ return $(selector, this.el);
+ };
+
+ // Cached regex to split keys for `delegate`.
+ var eventSplitter = /^(\S+)\s*(.*)$/;
+
+ // List of view options to be merged as properties.
+ var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName'];
+
+ // Set up all inheritable **Backbone.View** properties and methods.
+ _.extend(Backbone.View.prototype, Backbone.Events, {
+
+ // The default `tagName` of a View's element is `"div"`.
+ tagName : 'div',
+
+ // Attach the `selectorDelegate` function as the `$` property.
+ $ : selectorDelegate,
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize : function(){},
+
+ // **render** is the core function that your view should override, in order
+ // to populate its element (`this.el`), with the appropriate HTML. The
+ // convention is for **render** to always return `this`.
+ render : function() {
+ return this;
+ },
+
+ // Remove this view from the DOM. Note that the view isn't present in the
+ // DOM by default, so calling this method may be a no-op.
+ remove : function() {
+ $(this.el).remove();
+ return this;
+ },
+
+ // For small amounts of DOM Elements, where a full-blown template isn't
+ // needed, use **make** to manufacture elements, one at a time.
+ //
+ // var el = this.make('li', {'class': 'row'}, this.model.escape('title'));
+ //
+ make : function(tagName, attributes, content) {
+ var el = document.createElement(tagName);
+ if (attributes) $(el).attr(attributes);
+ if (content) $(el).html(content);
+ return el;
+ },
+
+ // Set callbacks, where `this.events` is a hash of
+ //
+ // *{"event selector": "callback"}*
+ //
+ // {
+ // 'mousedown .title': 'edit',
+ // 'click .button': 'save'
+ // }
+ //
+ // pairs. Callbacks will be bound to the view, with `this` set properly.
+ // Uses event delegation for efficiency.
+ // Omitting the selector binds the event to `this.el`.
+ // This only works for delegate-able events: not `focus`, `blur`, and
+ // not `change`, `submit`, and `reset` in Internet Explorer.
+ delegateEvents : function(events) {
+ if (!(events || (events = this.events))) return;
+ if (_.isFunction(events)) events = events.call(this);
+ this.undelegateEvents();
+ for (var key in events) {
+ var method = this[events[key]];
+ if (!method) throw new Error('Event "' + events[key] + '" does not exist');
+ var match = key.match(eventSplitter);
+ var eventName = match[1], selector = match[2];
+ method = _.bind(method, this);
+ eventName += '.delegateEvents' + this.cid;
+ if (selector === '') {
+ $(this.el).bind(eventName, method);
+ } else {
+ $(this.el).delegate(selector, eventName, method);
+ }
+ }
+ },
+
+ // Clears all callbacks previously bound to the view with `delegateEvents`.
+ undelegateEvents: function() {
+ $(this.el).unbind('.delegateEvents' + this.cid);
+ },
+
+ // Performs the initial configuration of a View with a set of options.
+ // Keys with special meaning *(model, collection, id, className)*, are
+ // attached directly to the view.
+ _configure : function(options) {
+ if (this.options) options = _.extend({}, this.options, options);
+ for (var i = 0, l = viewOptions.length; i < l; i++) {
+ var attr = viewOptions[i];
+ if (options[attr]) this[attr] = options[attr];
+ }
+ this.options = options;
+ },
+
+ // Ensure that the View has a DOM element to render into.
+ // If `this.el` is a string, pass it through `$()`, take the first
+ // matching element, and re-assign it to `el`. Otherwise, create
+ // an element from the `id`, `className` and `tagName` properties.
+ _ensureElement : function() {
+ if (!this.el) {
+ var attrs = this.attributes || {};
+ if (this.id) attrs.id = this.id;
+ if (this.className) attrs['class'] = this.className;
+ this.el = this.make(this.tagName, attrs);
+ } else if (_.isString(this.el)) {
+ this.el = $(this.el).get(0);
+ }
+ }
+
+ });
+
+ // The self-propagating extend function that Backbone classes use.
+ var extend = function (protoProps, classProps) {
+ var child = inherits(this, protoProps, classProps);
+ child.extend = this.extend;
+ return child;
+ };
+
+ // Set up inheritance for the model, collection, and view.
+ Backbone.Model.extend = Backbone.Collection.extend =
+ Backbone.Router.extend = Backbone.View.extend = extend;
+
+ // Map from CRUD to HTTP for our default `Backbone.sync` implementation.
+ var methodMap = {
+ 'create': 'POST',
+ 'update': 'PUT',
+ 'delete': 'DELETE',
+ 'read' : 'GET'
+ };
+
+ // Backbone.sync
+ // -------------
+
+ // Override this function to change the manner in which Backbone persists
+ // models to the server. You will be passed the type of request, and the
+ // model in question. By default, makes a RESTful Ajax request
+ // to the model's `url()`. Some possible customizations could be:
+ //
+ // * Use `setTimeout` to batch rapid-fire updates into a single request.
+ // * Send up the models as XML instead of JSON.
+ // * Persist models via WebSockets instead of Ajax.
+ //
+ // Turn on `Backbone.emulateHTTP` in order to send `PUT` and `DELETE` requests
+ // as `POST`, with a `_method` parameter containing the true HTTP method,
+ // as well as all requests with the body as `application/x-www-form-urlencoded` instead of
+ // `application/json` with the model in a param named `model`.
+ // Useful when interfacing with server-side languages like **PHP** that make
+ // it difficult to read the body of `PUT` requests.
+ Backbone.sync = function(method, model, options) {
+ var type = methodMap[method];
+
+ // Default JSON-request options.
+ var params = _.extend({
+ type: type,
+ dataType: 'json'
+ }, options);
+
+ // Ensure that we have a URL.
+ if (!params.url) {
+ params.url = getUrl(model) || urlError();
+ }
+
+ // Ensure that we have the appropriate request data.
+ if (!params.data && model && (method == 'create' || method == 'update')) {
+ params.contentType = 'application/json';
+ params.data = JSON.stringify(model.toJSON());
+ }
+
+ // For older servers, emulate JSON by encoding the request into an HTML-form.
+ if (Backbone.emulateJSON) {
+ params.contentType = 'application/x-www-form-urlencoded';
+ params.data = params.data ? {model : params.data} : {};
+ }
+
+ // For older servers, emulate HTTP by mimicking the HTTP method with `_method`
+ // And an `X-HTTP-Method-Override` header.
+ if (Backbone.emulateHTTP) {
+ if (type === 'PUT' || type === 'DELETE') {
+ if (Backbone.emulateJSON) params.data._method = type;
+ params.type = 'POST';
+ params.beforeSend = function(xhr) {
+ xhr.setRequestHeader('X-HTTP-Method-Override', type);
+ };
+ }
+ }
+
+ // Don't process data on a non-GET request.
+ if (params.type !== 'GET' && !Backbone.emulateJSON) {
+ params.processData = false;
+ }
+
+ // Make the request.
+ return $.ajax(params);
+ };
+
+ // Helpers
+ // -------
+
+ // Shared empty constructor function to aid in prototype-chain creation.
+ var ctor = function(){};
+
+ // Helper function to correctly set up the prototype chain, for subclasses.
+ // Similar to `goog.inherits`, but uses a hash of prototype properties and
+ // class properties to be extended.
+ var inherits = function(parent, protoProps, staticProps) {
+ var child;
+
+ // The constructor function for the new subclass is either defined by you
+ // (the "constructor" property in your `extend` definition), or defaulted
+ // by us to simply call `super()`.
+ if (protoProps && protoProps.hasOwnProperty('constructor')) {
+ child = protoProps.constructor;
+ } else {
+ child = function(){ return parent.apply(this, arguments); };
+ }
+
+ // Inherit class (static) properties from parent.
+ _.extend(child, parent);
+
+ // Set the prototype chain to inherit from `parent`, without calling
+ // `parent`'s constructor function.
+ ctor.prototype = parent.prototype;
+ child.prototype = new ctor();
+
+ // Add prototype properties (instance properties) to the subclass,
+ // if supplied.
+ if (protoProps) _.extend(child.prototype, protoProps);
+
+ // Add static properties to the constructor function, if supplied.
+ if (staticProps) _.extend(child, staticProps);
+
+ // Correctly set child's `prototype.constructor`.
+ child.prototype.constructor = child;
+
+ // Set a convenience property in case the parent's prototype is needed later.
+ child.__super__ = parent.prototype;
+
+ return child;
+ };
+
+ // Helper function to get a URL from a Model or Collection as a property
+ // or as a function.
+ var getUrl = function(object) {
+ if (!(object && object.url)) return null;
+ return _.isFunction(object.url) ? object.url() : object.url;
+ };
+
+ // Throw an error when a URL is needed, and none is supplied.
+ var urlError = function() {
+ throw new Error('A "url" property or function must be specified');
+ };
+
+ // Wrap an optional error callback with a fallback error event.
+ var wrapError = function(onError, model, options) {
+ return function(resp) {
+ if (onError) {
+ onError(model, resp, options);
+ } else {
+ model.trigger('error', model, resp, options);
+ }
+ };
+ };
+
+ // Helper function to escape a string for HTML rendering.
+ var escapeHTML = function(string) {
+ return string.replace(/&(?!\w+;|#\d+;|#x[\da-f]+;)/gi, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;').replace(/'/g, '&#x27;').replace(/\//g,'&#x2F;');
+ };
+
+}).call(this);
845 src/documentcloud/underscore.js
@@ -0,0 +1,845 @@
+// Underscore.js 1.1.7
+// (c) 2011 Jeremy Ashkenas, DocumentCloud Inc.
+// Underscore is freely distributable under the MIT license.
+// Portions of Underscore are inspired or borrowed from Prototype,
+// Oliver Steele's Functional, and John Resig's Micro-Templating.
+// For all details and documentation:
+// http://documentcloud.github.com/underscore
+
+(function() {
+
+ // Baseline setup
+ // --------------
+
+ // Establish the root object, `window` in the browser, or `global` on the server.
+ var root = this;
+
+ // Save the previous value of the `_` variable.
+ var previousUnderscore = root._;
+
+ // Establish the object that gets returned to break out of a loop iteration.
+ var breaker = {};
+
+ // Save bytes in the minified (but not gzipped) version:
+ var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
+
+ // Create quick reference variables for speed access to core prototypes.
+ var slice = ArrayProto.slice,
+ unshift = ArrayProto.unshift,
+ toString = ObjProto.toString,
+ hasOwnProperty = ObjProto.hasOwnProperty;
+
+ // All **ECMAScript 5** native function implementations that we hope to use
+ // are declared here.
+ var
+ nativeForEach = ArrayProto.forEach,
+ nativeMap = ArrayProto.map,
+ nativeReduce = ArrayProto.reduce,
+ nativeReduceRight = ArrayProto.reduceRight,
+ nativeFilter = ArrayProto.filter,
+ nativeEvery = ArrayProto.every,
+ nativeSome = ArrayProto.some,
+ nativeIndexOf = ArrayProto.indexOf,
+ nativeLastIndexOf = ArrayProto.lastIndexOf,
+ nativeIsArray = Array.isArray,
+ nativeKeys = Object.keys,
+ nativeBind = FuncProto.bind;
+
+ // Create a safe reference to the Underscore object for use below.
+ var _ = function(obj) { return new wrapper(obj); };
+
+ // Export the Underscore object for **CommonJS**, with backwards-compatibility
+ // for the old `require()` API. If we're not in CommonJS, add `_` to the
+ // global object.
+ if (typeof module !== 'undefined' && module.exports) {
+ module.exports = _;
+ _._ = _;
+ } else {
+ // Exported as a string, for Closure Compiler "advanced" mode.
+ root['_'] = _;
+ }
+
+ // Current version.
+ _.VERSION = '1.1.7';
+
+ // Collection Functions
+ // --------------------
+
+ // The cornerstone, an `each` implementation, aka `forEach`.
+ // Handles objects with the built-in `forEach`, arrays, and raw objects.
+ // Delegates to **ECMAScript 5**'s native `forEach` if available.
+ var each = _.each = _.forEach = function(obj, iterator, context) {
+ if (obj == null) return;
+ if (nativeForEach && obj.forEach === nativeForEach) {
+ obj.forEach(iterator, context);
+ } else if (obj.length === +obj.length) {
+ for (var i = 0, l = obj.length; i < l; i++) {
+ if (i in obj && iterator.call(context, obj[i], i, obj) === breaker) return;
+ }
+ } else {
+ for (var key in obj) {
+ if (hasOwnProperty.call(obj, key)) {
+ if (iterator.call(context, obj[key], key, obj) === breaker) return;
+ }
+ }
+ }
+ };
+
+ // Return the results of applying the iterator to each element.
+ // Delegates to **ECMAScript 5**'s native `map` if available.
+ _.map = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
+ each(obj, function(value, index, list) {
+ results[results.length] = iterator.call(context, value, index, list);
+ });
+ return results;
+ };
+
+ // **Reduce** builds up a single result from a list of values, aka `inject`,
+ // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
+ _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
+ var initial = memo !== void 0;
+ if (obj == null) obj = [];
+ if (nativeReduce && obj.reduce === nativeReduce) {
+ if (context) iterator = _.bind(iterator, context);
+ return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
+ }
+ each(obj, function(value, index, list) {
+ if (!initial) {
+ memo = value;
+ initial = true;
+ } else {
+ memo = iterator.call(context, memo, value, index, list);
+ }
+ });
+ if (!initial) throw new TypeError("Reduce of empty array with no initial value");
+ return memo;
+ };
+
+ // The right-associative version of reduce, also known as `foldr`.
+ // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
+ _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
+ if (obj == null) obj = [];
+ if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
+ if (context) iterator = _.bind(iterator, context);
+ return memo !== void 0 ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
+ }
+ var reversed = (_.isArray(obj) ? obj.slice() : _.toArray(obj)).reverse();
+ return _.reduce(reversed, iterator, memo, context);
+ };
+
+ // Return the first value which passes a truth test. Aliased as `detect`.
+ _.find = _.detect = function(obj, iterator, context) {
+ var result;
+ any(obj, function(value, index, list) {
+ if (iterator.call(context, value, index, list)) {
+ result = value;
+ return true;
+ }
+ });
+ return result;
+ };
+
+ // Return all the elements that pass a truth test.
+ // Delegates to **ECMAScript 5**'s native `filter` if available.
+ // Aliased as `select`.
+ _.filter = _.select = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
+ each(obj, function(value, index, list) {
+ if (iterator.call(context, value, index, list)) results[results.length] = value;
+ });
+ return results;
+ };
+
+ // Return all the elements for which a truth test fails.
+ _.reject = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ each(obj, function(value, index, list) {
+ if (!iterator.call(context, value, index, list)) results[results.length] = value;
+ });
+ return results;
+ };
+
+ // Determine whether all of the elements match a truth test.
+ // Delegates to **ECMAScript 5**'s native `every` if available.
+ // Aliased as `all`.
+ _.every = _.all = function(obj, iterator, context) {
+ var result = true;
+ if (obj == null) return result;
+ if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
+ each(obj, function(value, index, list) {
+ if (!(result = result && iterator.call(context, value, index, list))) return breaker;
+ });
+ return result;
+ };
+
+ // Determine if at least one element in the object matches a truth test.
+ // Delegates to **ECMAScript 5**'s native `some` if available.
+ // Aliased as `any`.
+ var any = _.some = _.any = function(obj, iterator, context) {
+ iterator = iterator || _.identity;
+ var result = false;
+ if (obj == null) return result;
+ if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
+ each(obj, function(value, index, list) {
+ if (result |= iterator.call(context, value, index, list)) return breaker;
+ });
+ return !!result;
+ };
+
+ // Determine if a given value is included in the array or object using `===`.
+ // Aliased as `contains`.
+ _.include = _.contains = function(obj, target) {
+ var found = false;
+ if (obj == null) return found;
+ if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
+ any(obj, function(value) {
+ if (found = value === target) return true;
+ });
+ return found;
+ };
+
+ // Invoke a method (with arguments) on every item in a collection.
+ _.invoke = function(obj, method) {
+ var args = slice.call(arguments, 2);
+ return _.map(obj, function(value) {
+ return (method.call ? method || value : value[method]).apply(value, args);
+ });
+ };
+
+ // Convenience version of a common use case of `map`: fetching a property.
+ _.pluck = function(obj, key) {
+ return _.map(obj, function(value){ return value[key]; });
+ };
+
+ // Return the maximum element or (element-based computation).
+ _.max = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj)) return Math.max.apply(Math, obj);
+ var result = {computed : -Infinity};
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ computed >= result.computed && (result = {value : value, computed : computed});
+ });
+ return result.value;
+ };
+
+ // Return the minimum element (or element-based computation).
+ _.min = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj)) return Math.min.apply(Math, obj);
+ var result = {computed : Infinity};
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ computed < result.computed && (result = {value : value, computed : computed});
+ });
+ return result.value;
+ };
+
+ // Sort the object's values by a criterion produced by an iterator.
+ _.sortBy = function(obj, iterator, context) {
+ return _.pluck(_.map(obj, function(value, index, list) {
+ return {
+ value : value,
+ criteria : iterator.call(context, value, index, list)
+ };
+ }).sort(function(left, right) {
+ var a = left.criteria, b = right.criteria;
+ return a < b ? -1 : a > b ? 1 : 0;
+ }), 'value');
+ };
+
+ // Groups the object's values by a criterion produced by an iterator
+ _.groupBy = function(obj, iterator) {
+ var result = {};
+ each(obj, function(value, index) {
+ var key = iterator(value, index);
+ (result[key] || (result[key] = [])).push(value);
+ });
+ return result;
+ };
+
+ // Use a comparator function to figure out at what index an object should
+ // be inserted so as to maintain order. Uses binary search.
+ _.sortedIndex = function(array, obj, iterator) {
+ iterator || (iterator = _.identity);
+ var low = 0, high = array.length;
+ while (low < high) {
+ var mid = (low + high) >> 1;
+ iterator(array[mid]) < iterator(obj) ? low = mid + 1 : high = mid;
+ }
+ return low;
+ };
+
+ // Safely convert anything iterable into a real, live array.
+ _.toArray = function(iterable) {
+ if (!iterable) return [];
+ if (iterable.toArray) return iterable.toArray();
+ if (_.isArray(iterable)) return slice.call(iterable);
+ if (_.isArguments(iterable)) return slice.call(iterable);
+ return _.values(iterable);
+ };
+
+ // Return the number of elements in an object.
+ _.size = function(obj) {
+ return _.toArray(obj).length;
+ };
+
+ // Array Functions
+ // ---------------
+
+ // Get the first element of an array. Passing **n** will return the first N
+ // values in the array. Aliased as `head`. The **guard** check allows it to work
+ // with `_.map`.
+ _.first = _.head = function(array, n, guard) {
+ return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
+ };
+
+ // Returns everything but the first entry of the array. Aliased as `tail`.
+ // Especially useful on the arguments object. Passing an **index** will return
+ // the rest of the values in the array from that index onward. The **guard**
+ // check allows it to work with `_.map`.
+ _.rest = _.tail = function(array, index, guard) {
+ return slice.call(array, (index == null) || guard ? 1 : index);
+ };
+
+ // Get the last element of an array.
+ _.last = function(array) {
+ return array[array.length - 1];
+ };
+
+ // Trim out all falsy values from an array.
+ _.compact = function(array) {
+ return _.filter(array, function(value){ return !!value; });
+ };
+
+ // Return a completely flattened version of an array.
+ _.flatten = function(array) {
+ return _.reduce(array, function(memo, value) {
+ if (_.isArray(value)) return memo.concat(_.flatten(value));
+ memo[memo.length] = value;
+ return memo;
+ }, []);
+ };
+
+ // Return a version of the array that does not contain the specified value(s).
+ _.without = function(array) {
+ return _.difference(array, slice.call(arguments, 1));
+ };
+
+ // Produce a duplicate-free version of the array. If the array has already
+ // been sorted, you have the option of using a faster algorithm.
+ // Aliased as `unique`.
+ _.uniq = _.unique = function(array, isSorted, iterator) {
+ var initial = iterator ? _.map(array, iterator) : array;
+ var result = [];
+ _.reduce(initial, function(memo, el, i) {
+ if (0 == i || (isSorted === true ? _.last(memo) != el : !_.include(memo, el))) {
+ memo[memo.length] = el;
+ result[result.length] = array[i];
+ }
+ return memo;
+ }, []);
+ return result;
+ };
+
+ // Produce an array that contains the union: each distinct element from all of
+ // the passed-in arrays.
+ _.union = function() {
+ return _.uniq(_.flatten(arguments));
+ };
+
+ // Produce an array that contains every item shared between all the
+ // passed-in arrays. (Aliased as "intersect" for back-compat.)
+ _.intersection = _.intersect = function(array) {
+ var rest = slice.call(arguments, 1);
+ return _.filter(_.uniq(array), function(item) {
+ return _.every(rest, function(other) {
+ return _.indexOf(other, item) >= 0;
+ });
+ });
+ };
+
+ // Take the difference between one array and another.
+ // Only the elements present in just the first array will remain.
+ _.difference = function(array, other) {
+ return _.filter(array, function(value){ return !_.include(other, value); });
+ };
+
+ // Zip together multiple lists into a single array -- elements that share
+ // an index go together.
+ _.zip = function() {
+ var args = slice.call(arguments);
+ var length = _.max(_.pluck(args, 'length'));
+ var results = new Array(length);
+ for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i);
+ return results;
+ };
+
+ // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
+ // we need this function. Return the position of the first occurrence of an
+ // item in an array, or -1 if the item is not included in the array.
+ // Delegates to **ECMAScript 5**'s native `indexOf` if available.
+ // If the array is large and already in sort order, pass `true`
+ // for **isSorted** to use binary search.
+ _.indexOf = function(array, item, isSorted) {
+ if (array == null) return -1;
+ var i, l;
+ if (isSorted) {
+ i = _.sortedIndex(array, item);
+ return array[i] === item ? i : -1;
+ }
+ if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item);
+ for (i = 0, l = array.length; i < l; i++) if (array[i] === item) return i;
+ return -1;
+ };
+
+
+ // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
+ _.lastIndexOf = function(array, item) {
+ if (array == null) return -1;
+ if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item);
+ var i = array.length;
+ while (i--) if (array[i] === item) return i;
+ return -1;
+ };
+
+ // Generate an integer Array containing an arithmetic progression. A port of
+ // the native Python `range()` function. See
+ // [the Python documentation](http://docs.python.org/library/functions.html#range).
+ _.range = function(start, stop, step) {
+ if (arguments.length <= 1) {
+ stop = start || 0;
+ start = 0;
+ }
+ step = arguments[2] || 1;
+
+ var len = Math.max(Math.ceil((stop - start) / step), 0);
+ var idx = 0;
+ var range = new Array(len);
+
+ while(idx < len) {
+ range[idx++] = start;
+ start += step;
+ }
+
+ return range;
+ };
+
+ // Function (ahem) Functions
+ // ------------------
+
+ // Create a function bound to a given object (assigning `this`, and arguments,
+ // optionally). Binding with arguments is also known as `curry`.
+ // Delegates to **ECMAScript 5**'s native `Function.bind` if available.
+ // We check for `func.bind` first, to fail fast when `func` is undefined.
+ _.bind = function(func, obj) {
+ if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
+ var args = slice.call(arguments, 2);
+ return function() {
+ return func.apply(obj, args.concat(slice.call(arguments)));
+ };
+ };
+
+ // Bind all of an object's methods to that object. Useful for ensuring that
+ // all callbacks defined on an object belong to it.
+ _.bindAll = function(obj) {
+ var funcs = slice.call(arguments, 1);
+ if (funcs.length == 0) funcs = _.functions(obj);
+ each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
+ return obj;
+ };
+
+ // Memoize an expensive function by storing its results.
+ _.memoize = function(func, hasher) {
+ var memo = {};
+ hasher || (hasher = _.identity);
+ return function() {
+ var key = hasher.apply(this, arguments);
+ return hasOwnProperty.call(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
+ };
+ };
+
+ // Delays a function for the given number of milliseconds, and then calls
+ // it with the arguments supplied.
+ _.delay = function(func, wait) {
+ var args = slice.call(arguments, 2);
+ return setTimeout(function(){ return func.apply(func, args); }, wait);
+ };
+
+ // Defers a function, scheduling it to run after the current call stack has
+ // cleared.
+ _.defer = function(func) {
+ return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
+ };
+
+ // Internal function used to implement `_.throttle` and `_.debounce`.
+ var limit = function(func, wait, debounce) {
+ var timeout;
+ return function() {
+ var context = this, args = arguments;
+ var throttler = function() {
+ timeout = null;
+ func.apply(context, args);
+ };
+ if (debounce) clearTimeout(timeout);
+ if (debounce || !timeout) timeout = setTimeout(throttler, wait);
+ };
+ };
+
+ // Returns a function, that, when invoked, will only be triggered at most once
+ // during a given window of time.
+ _.throttle = function(func, wait) {
+ return limit(func, wait, false);
+ };
+
+ // Returns a function, that, as long as it continues to be invoked, will not
+ // be triggered. The function will be called after it stops being called for
+ // N milliseconds.
+ _.debounce = function(func, wait) {
+ return limit(func, wait, true);
+ };
+
+ // Returns a function that will be executed at most one time, no matter how
+ // often you call it. Useful for lazy initialization.
+ _.once = function(func) {
+ var ran = false, memo;
+ return function() {
+ if (ran) return memo;
+ ran = true;
+ return memo = func.apply(this, arguments);
+ };
+ };
+
+ // Returns the first function passed as an argument to the second,
+ // allowing you to adjust arguments, run code before and after, and
+ // conditionally execute the original function.
+ _.wrap = function(func, wrapper) {
+ return function() {
+ var args = [func].concat(slice.call(arguments));
+ return wrapper.apply(this, args);
+ };
+ };
+
+ // Returns a function that is the composition of a list of functions, each
+ // consuming the return value of the function that follows.
+ _.compose = function() {
+ var funcs = slice.call(arguments);
+ return function() {
+ var args = slice.call(arguments);
+ for (var i = funcs.length - 1; i >= 0; i--) {
+ args = [funcs[i].apply(this, args)];
+ }
+ return args[0];
+ };
+ };
+
+ // Returns a function that will only be executed after being called N times.
+ _.after = function(times, func) {
+ return function() {
+ if (--times < 1) { return func.apply(this, arguments); }
+ };
+ };
+
+
+ // Object Functions
+ // ----------------
+
+ // Retrieve the names of an object's properties.
+ // Delegates to **ECMAScript 5**'s native `Object.keys`
+ _.keys = nativeKeys || function(obj) {
+ if (obj !== Object(obj)) throw new TypeError('Invalid object');
+ var keys = [];
+ for (var key in obj) if (hasOwnProperty.call(obj, key)) keys[keys.length] = key;
+ return keys;
+ };
+
+ // Retrieve the values of an object's properties.
+ _.values = function(obj) {
+ return _.map(obj, _.identity);
+ };
+
+ // Return a sorted list of the function names available on the object.
+ // Aliased as `methods`
+ _.functions = _.methods = function(obj) {
+ var names = [];
+ for (var key in obj) {
+ if (_.isFunction(obj[key])) names.push(key);
+ }
+ return names.sort();
+ };
+
+ // Extend a given object with all the properties in passed-in object(s).
+ _.extend = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ for (var prop in source) {
+ if (source[prop] !== void 0) obj[prop] = source[prop];
+ }
+ });
+ return obj;
+ };
+
+ // Fill in a given object with default properties.
+ _.defaults = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ for (var prop in source) {
+ if (obj[prop] == null) obj[prop] = source[prop];
+ }
+ });
+ return obj;
+ };
+
+ // Create a (shallow-cloned) duplicate of an object.
+ _.clone = function(obj) {
+ return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+ };
+
+ // Invokes interceptor with the obj, and then returns obj.
+ // The primary purpose of this method is to "tap into" a method chain, in
+ // order to perform operations on intermediate results within the chain.
+ _.tap = function(obj, interceptor) {
+ interceptor(obj);
+ return obj;
+ };
+
+ // Perform a deep comparison to check if two objects are equal.
+ _.isEqual = function(a, b) {
+ // Check object identity.
+ if (a === b) return true;
+ // Different types?
+ var atype = typeof(a), btype = typeof(b);
+ if (atype != btype) return false;
+ // Basic equality test (watch out for coercions).
+ if (a == b) return true;
+ // One is falsy and the other truthy.
+ if ((!a && b) || (a && !b)) return false;
+ // Unwrap any wrapped objects.
+ if (a._chain) a = a._wrapped;
+ if (b._chain) b = b._wrapped;
+ // One of them implements an isEqual()?
+ if (a.isEqual) return a.isEqual(b);
+ if (b.isEqual) return b.isEqual(a);
+ // Check dates' integer values.
+ if (_.isDate(a) && _.isDate(b)) return a.getTime() === b.getTime();
+ // Both are NaN?
+ if (_.isNaN(a) && _.isNaN(b)) return false;
+ // Compare regular expressions.
+ if (_.isRegExp(a) && _.isRegExp(b))
+ return a.source === b.source &&
+ a.global === b.global &&
+ a.ignoreCase === b.ignoreCase &&
+ a.multiline === b.multiline;
+ // If a is not an object by this point, we can't handle it.
+ if (atype !== 'object') return false;
+ // Check for different array lengths before comparing contents.
+ if (a.length && (a.length !== b.length)) return false;
+ // Nothing else worked, deep compare the contents.
+ var aKeys = _.keys(a), bKeys = _.keys(b);
+ // Different object sizes?
+ if (aKeys.length != bKeys.length) return false;
+ // Recursive comparison of contents.
+ for (var key in a) if (!(key in b) || !_.isEqual(a[key], b[key])) return false;
+ return true;
+ };
+
+ // Is a given array or object empty?
+ _.isEmpty = function(obj) {
+ if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
+ for (var key in obj) if (hasOwnProperty.call(obj, key)) return false;
+ return true;
+ };
+
+ // Is a given value a DOM element?
+ _.isElement = function(obj) {
+ return !!(obj && obj.nodeType == 1);
+ };
+
+ // Is a given value an array?
+ // Delegates to ECMA5's native Array.isArray
+ _.isArray = nativeIsArray || function(obj) {
+ return toString.call(obj) === '[object Array]';
+ };
+
+ // Is a given variable an object?
+ _.isObject = function(obj) {
+ return obj === Object(obj);
+ };
+
+ // Is a given variable an arguments object?
+ _.isArguments = function(obj) {
+ return !!(obj && hasOwnProperty.call(obj, 'callee'));
+ };
+
+ // Is a given value a function?
+ _.isFunction = function(obj) {
+ return !!(obj && obj.constructor && obj.call && obj.apply);
+ };
+
+ // Is a given value a string?
+ _.isString = function(obj) {
+ return !!(obj === '' || (obj && obj.charCodeAt && obj.substr));
+ };
+
+ // Is a given value a number?
+ _.isNumber = function(obj) {
+ return !!(obj === 0 || (obj && obj.toExponential && obj.toFixed));
+ };
+
+ // Is the given value `NaN`? `NaN` happens to be the only value in JavaScript
+ // that does not equal itself.
+ _.isNaN = function(obj) {
+ return obj !== obj;
+ };
+
+ // Is a given value a boolean?
+ _.isBoolean = function(obj) {
+ return obj === true || obj === false;
+ };
+
+ // Is a given value a date?
+ _.isDate = function(obj) {
+ return !!(obj && obj.getTimezoneOffset && obj.setUTCFullYear);
+ };
+
+ // Is the given value a regular expression?
+ _.isRegExp = function(obj) {
+ return !!(obj && obj.test && obj.exec && (obj.ignoreCase || obj.ignoreCase === false));
+ };
+
+ // Is a given value equal to null?
+ _.isNull = function(obj) {
+ return obj === null;
+ };
+
+ // Is a given variable undefined?
+ _.isUndefined = function(obj) {
+ return obj === void 0;
+ };
+
+ // Utility Functions
+ // -----------------
+
+ // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+ // previous owner. Returns a reference to the Underscore object.
+ _.noConflict = function() {
+ root._ = previousUnderscore;
+ return this;
+ };
+
+ // Keep the identity function around for default iterators.
+ _.identity = function(value) {
+ return value;
+ };
+
+ // Run a function **n** times.
+ _.times = function (n, iterator, context) {
+ for (var i = 0; i < n; i++) iterator.call(context, i);
+ };
+
+ // Add your own custom functions to the Underscore object, ensuring that
+ // they're correctly added to the OOP wrapper as well.
+ _.mixin = function(obj) {
+ each(_.functions(obj), function(name){
+ addToWrapper(name, _[name] = obj[name]);
+ });
+ };
+
+ // Generate a unique integer id (unique within the entire client session).
+ // Useful for temporary DOM ids.
+ var idCounter = 0;
+ _.uniqueId = function(prefix) {
+ var id = idCounter++;
+ return prefix ? prefix + id : id;
+ };
+
+ // By default, Underscore uses ERB-style template delimiters, change the
+ // following template settings to use alternative delimiters.
+ _.templateSettings = {
+ evaluate : /<%([\s\S]+?)%>/g,
+ interpolate : /<%=([\s\S]+?)%>/g
+ };
+
+ // JavaScript micro-templating, similar to John Resig's implementation.
+ // Underscore templating handles arbitrary delimiters, preserves whitespace,
+ // and correctly escapes quotes within interpolated code.
+ _.template = function(str, data) {
+ var c = _.templateSettings;
+ var tmpl = 'var __p=[],print=function(){__p.push.apply(__p,arguments);};' +
+ 'with(obj||{}){__p.push(\'' +
+ str.replace(/\\/g, '\\\\')
+ .replace(/'/g, "\\'")
+ .replace(c.interpolate, function(match, code) {
+ return "'," + code.replace(/\\'/g, "'") + ",'";
+ })
+ .replace(c.evaluate || null, function(match, code) {
+ return "');" + code.replace(/\\'/g, "'")
+ .replace(/[\r\n\t]/g, ' ') + "__p.push('";
+ })
+ .replace(/\r/g, '\\r')
+ .replace(/\n/g, '\\n')
+ .replace(/\t/g, '\\t')
+ + "');}return __p.join('');";
+ var func = new Function('obj', tmpl);
+ return data ? func(data) : func;
+ };
+
+ // The OOP Wrapper
+ // ---------------
+
+ // If Underscore is called as a function, it returns a wrapped object that
+ // can be used OO-style. This wrapper holds altered versions of all the
+ // underscore functions. Wrapped objects may be chained.
+ var wrapper = function(obj) { this._wrapped = obj; };
+
+ // Expose `wrapper.prototype` as `_.prototype`
+ _.prototype = wrapper.prototype;
+
+ // Helper function to continue chaining intermediate results.
+ var result = function(obj, chain) {
+ return chain ? _(obj).chain() : obj;
+ };
+
+ // A method to easily add functions to the OOP wrapper.
+ var addToWrapper = function(name, func) {
+ wrapper.prototype[name] = function() {
+ var args = slice.call(arguments);
+ unshift.call(args, this._wrapped);
+ return result(func.apply(_, args), this._chain);
+ };
+ };
+
+ // Add all of the Underscore functions to the wrapper object.
+ _.mixin(_);
+
+ // Add all mutator Array functions to the wrapper.
+ each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+ var method = ArrayProto[name];
+ wrapper.prototype[name] = function() {
+ method.apply(this._wrapped, arguments);
+ return result(this._wrapped, this._chain);
+ };
+ });
+
+ // Add all accessor Array functions to the wrapper.
+ each(['concat', 'join', 'slice'], function(name) {
+ var method = ArrayProto[name];
+ wrapper.prototype[name] = function() {
+ return result(method.apply(this._wrapped, arguments), this._chain);
+ };
+ });
+
+ // Start chaining a wrapped Underscore object.
+ wrapper.prototype.chain = function() {
+ this._chain = true;
+ return this;
+ };
+
+ // Extracts the result from a wrapped and chained object.
+ wrapper.prototype.value = function() {
+ return this._wrapped;
+ };
+
+})();
164 src/easeljs/display/Bitmap.js
@@ -0,0 +1,164 @@
+/*
+* Bitmap by Grant Skinner. Dec 5, 2010
+* Visit http://easeljs.com/ for documentation, updates and examples.
+*
+*
+* Copyright (c) 2010 Grant Skinner
+*
+* 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.
+*/
+
+/**
+* The Easel Javascript library provides a retained graphics mode for canvas
+* including a full, hierarchical display list, a core interaction model, and
+* helper classes to make working with Canvas much easier.
+* @module EaselJS
+**/
+
+(function(window) {
+
+/**
+* A Bitmap represents an Image, Canvas, or Video in the display list.
+* @class Bitmap
+* @extends DisplayObject
+* @constructor
+* @param {Image | HTMLCanvasElement | HTMLVideoElement} image The Image, Canvas, or Video to render to the display list.
+**/
+Bitmap = function(image) {
+ this.initialize(image);
+};
+var p = Bitmap.prototype = new DisplayObject();
+
+ // public properties:
+ /**
+ * The image to render. This can be an Image, a Canvas, or a Video.
+ * @property image
+ * @type Image | HTMLCanvasElement | HTMLVideoElement
+ **/
+ p.image = null;
+
+ /**
+ * Whether or not the Bitmap should be draw to the canvas at whole pixel coordinates.
+ * @property snapToPixel
+ * @type Boolean
+ * @default true
+ **/
+ p.snapToPixel = true;
+
+ // constructor:
+
+ /**
+ * @property DisplayObject_initialize
+ * @type Function
+ * @private
+ **/
+ p.DisplayObject_initialize = p.initialize;
+
+ /**
+ * Initialization method.
+ * @method initialize
+ * @protected
+ */
+ p.initialize = function(image) {
+ this.DisplayObject_initialize();
+ this.image = image;
+ };
+
+// public methods:
+
+ /**
+ * Returns true or false indicating whether the display object would be visible if drawn to a canvas.
+ * This does not account for whether it would be visible within the boundaries of the stage.
+ * NOTE: This method is mainly for internal use, though it may be useful for advanced uses.
+ * @method isVisible
+ * @return {Boolean} Boolean indicating whether the display object would be visible if drawn to a canvas
+ **/
+ p.isVisible = function() {
+ return this.visible && this.alpha > 0 && this.scaleX != 0 && this.scaleY != 0 && this.image && (this.image.complete || this.image.getContext);
+ };
+
+ /**
+ * @property DisplayObject_draw
+ * @type Function
+ * @private
+ **/
+ p.DisplayObject_draw = p.draw;
+
+ /**
+ * Draws the display object into the specified context ignoring it's visible, alpha, shadow, and transform.
+ * Returns true if the draw was handled (useful for overriding functionality).
+ * NOTE: This method is mainly for internal use, though it may be useful for advanced uses.
+ * @method draw
+ * @param {CanvasRenderingContext2D} ctx The canvas 2D context object to draw into.
+ * @param {Boolean} ignoreCache Indicates whether the draw operation should ignore any current cache.
+ * For example, used for drawing the cache (to prevent it from simply drawing an existing cache back
+ * into itself).
+ **/
+ p.draw = function(ctx, ignoreCache) {
+ if (this.DisplayObject_draw(ctx, ignoreCache)) { return true; }
+ ctx.drawImage(this.image, 0, 0);
+ return true;
+ };
+
+ //Note, the doc sections below document using the specified APIs (from DisplayObject) from
+ //Bitmap. This is why they have no method implementations.
+
+ /**
+ * Because the content of a Bitmap is already in a simple format, cache is unnecessary for Bitmap instances.
+ * You should not cache Bitmap instances as it can degrade performance.
+ * @method cache
+ **/
+
+ /**
+ * Because the content of a Bitmap is already in a simple format, cache is unnecessary for Bitmap instances.
+ * You should not cache Bitmap instances as it can degrade performance.
+ * @method updateCache
+ **/
+
+ /**
+ * Because the content of a Bitmap is already in a simple format, cache is unnecessary for Bitmap instances.
+ * You should not cache Bitmap instances as it can degrade performance.
+ * @method uncache
+ **/
+
+ /**
+ * Returns a clone of the Bitmap instance.
+ * @method clone
+ * @return {Bitmap} a clone of the Bitmap instance.
+ **/
+ p.clone = function() {
+ var o = new Bitmap(this.image);
+ this.cloneProps(o);
+ return o;
+ };
+
+ /**
+ * Returns a string representation of this object.
+ * @method toString
+ * @return {String} a string representation of the instance.
+ **/
+ p.toString = function() {
+ return "[Bitmap (name="+ this.name +")]";
+ };
+
+window.Bitmap = Bitmap;
+}(window));
354 src/easeljs/display/BitmapSequence.js
@@ -0,0 +1,354 @@
+/*
+* BitmapSequence by Grant Skinner. Dec 5, 2010
+* Visit http://easeljs.com/ for documentation, updates and examples.
+*
+*
+* Copyright (c) 2010 Grant Skinner
+*
+* 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.
+*/
+
+/**
+* The Easel Javascript library provides a retained graphics mode for canvas
+* including a full, hierarchical display list, a core interaction model, and
+* helper classes to make working with Canvas much easier.
+* @module EaselJS
+**/
+
+(function(window) {
+
+/**
+* Displays frames or sequences of frames from a sprite sheet image. A sprite sheet is a series of images
+* (usually animation frames) combined into a single image on a regular grid. For example, an animation
+* consisting of 8 100x100 images could be combined into a 400x200 sprite sheet (4 frames across by 2 high).
+* You can display individual frames, play sequential frames as an animation, and even sequence animations
+* together. See the SpriteSheet class for more information on setting up