/src/cs-example/public/assets/commits.js
JavaScript | 12528 lines | 8446 code | 1937 blank | 2145 comment | 2372 complexity | bae828dd958c7f774ab6b536b95f09be MD5 | raw file
Possible License(s): MIT
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- (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
- var $, Backbone, Commits, CommitsView, listTemplate, sd, _ref,
- __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
- __hasProp = {}.hasOwnProperty,
- __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
- Backbone = require("backbone");
- $ = require('jquery');
- Backbone.$ = $;
- sd = require("sharify").data;
- Commits = require("../../collections/commits.coffee");
- listTemplate = function() {
- return require("./templates/list.jade").apply(null, arguments);
- };
- module.exports.CommitsView = CommitsView = (function(_super) {
- __extends(CommitsView, _super);
- function CommitsView() {
- this.render = __bind(this.render, this);
- _ref = CommitsView.__super__.constructor.apply(this, arguments);
- return _ref;
- }
- CommitsView.prototype.initialize = function() {
- return this.collection.on("sync", this.render);
- };
- CommitsView.prototype.render = function() {
- return this.$("#commits-list").html(listTemplate({
- commits: this.collection.models
- }));
- };
- CommitsView.prototype.events = {
- "change .search-input": "changeRepo"
- };
- CommitsView.prototype.changeRepo = function(e) {
- this.collection.repo = $(e.target).val();
- return this.collection.fetch();
- };
- return CommitsView;
- })(Backbone.View);
- module.exports.init = function() {
- return new CommitsView({
- el: $("body"),
- collection: new Commits(sd.COMMITS, {
- owner: "artsy",
- repo: "flare"
- })
- });
- };
- },{"../../collections/commits.coffee":4,"./templates/list.jade":2,"backbone":6,"jquery":10,"sharify":11}],2:[function(require,module,exports){
- var jade = require("jade/runtime");
- module.exports = function template(locals) {
- var buf = [];
- var jade_mixins = {};
- var jade_interp;
- ;var locals_for_with = (locals || {});(function (commits) {
- // iterate commits
- ;(function(){
- var $$obj = commits;
- if ('number' == typeof $$obj.length) {
- for (var $index = 0, $$l = $$obj.length; $index < $$l; $index++) {
- var commit = $$obj[$index];
- buf.push("<li>" + (jade.escape(null == (jade_interp = commit.get('commit').message) ? "" : jade_interp)) + "</li>");
- }
- } else {
- var $$l = 0;
- for (var $index in $$obj) {
- $$l++; var commit = $$obj[$index];
- buf.push("<li>" + (jade.escape(null == (jade_interp = commit.get('commit').message) ? "" : jade_interp)) + "</li>");
- }
- }
- }).call(this);
- }("commits" in locals_for_with?locals_for_with.commits:typeof commits!=="undefined"?commits:undefined));;return buf.join("");
- };
- },{"jade/runtime":9}],3:[function(require,module,exports){
- require('jquery')(require("../apps/commits/client.coffee").init);
- },{"../apps/commits/client.coffee":1,"jquery":10}],4:[function(require,module,exports){
- var Backbone, Commit, Commits, sd, _ref,
- __hasProp = {}.hasOwnProperty,
- __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
- Backbone = require("backbone");
- sd = require("sharify").data;
- Commit = require("../models/commit.coffee");
- module.exports = Commits = (function(_super) {
- __extends(Commits, _super);
- function Commits() {
- _ref = Commits.__super__.constructor.apply(this, arguments);
- return _ref;
- }
- Commits.prototype.model = Commit;
- Commits.prototype.url = function() {
- return "" + sd.API_URL + "/repos/" + this.owner + "/" + this.repo + "/commits";
- };
- Commits.prototype.initialize = function(models, options) {
- return this.owner = options.owner, this.repo = options.repo, options;
- };
- return Commits;
- })(Backbone.Collection);
- },{"../models/commit.coffee":5,"backbone":6,"sharify":11}],5:[function(require,module,exports){
- var Backbone, Commit, sd, _ref,
- __hasProp = {}.hasOwnProperty,
- __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
- Backbone = require("backbone");
- sd = require("sharify").data;
- module.exports = Commit = (function(_super) {
- __extends(Commit, _super);
- function Commit() {
- _ref = Commit.__super__.constructor.apply(this, arguments);
- return _ref;
- }
- Commit.prototype.url = function() {
- return "" + sd.API_URL + "/repos/" + this.collection.owner + "/" + this.collection.repo + "/" + (this.get('sha'));
- };
- return Commit;
- })(Backbone.Model);
- },{"backbone":6,"sharify":11}],6:[function(require,module,exports){
- // Backbone.js 1.1.2
- // (c) 2010-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- // Backbone may be freely distributed under the MIT license.
- // For all details and documentation:
- // http://backbonejs.org
- (function(root, factory) {
- // Set up Backbone appropriately for the environment. Start with AMD.
- if (typeof define === 'function' && define.amd) {
- define(['underscore', 'jquery', 'exports'], function(_, $, exports) {
- // Export global even in AMD case in case this script is loaded with
- // others that may still expect a global Backbone.
- root.Backbone = factory(root, exports, _, $);
- });
- // Next for Node.js or CommonJS. jQuery may not be needed as a module.
- } else if (typeof exports !== 'undefined') {
- var _ = require('underscore');
- factory(root, exports, _);
- // Finally, as a browser global.
- } else {
- root.Backbone = factory(root, {}, root._, (root.jQuery || root.Zepto || root.ender || root.$));
- }
- }(this, function(root, Backbone, _, $) {
- // Initial Setup
- // -------------
- // Save the previous value of the `Backbone` variable, so that it can be
- // restored later on, if `noConflict` is used.
- var previousBackbone = root.Backbone;
- // Create local references to array methods we'll want to use later.
- var array = [];
- var push = array.push;
- var slice = array.slice;
- var splice = array.splice;
- // Current version of the library. Keep in sync with `package.json`.
- Backbone.VERSION = '1.1.2';
- // For Backbone's purposes, jQuery, Zepto, Ender, or My Library (kidding) owns
- // the `$` variable.
- Backbone.$ = $;
- // 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 `"PATCH"`, `"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 with `on` or remove with `off` callback
- // functions to an event; `trigger`-ing an event fires all callbacks in
- // succession.
- //
- // var object = {};
- // _.extend(object, Backbone.Events);
- // object.on('expand', function(){ alert('expanded'); });
- // object.trigger('expand');
- //
- var Events = Backbone.Events = {
- // Bind an event to a `callback` function. Passing `"all"` will bind
- // the callback to all events fired.
- on: function(name, callback, context) {
- if (!eventsApi(this, 'on', name, [callback, context]) || !callback) return this;
- this._events || (this._events = {});
- var events = this._events[name] || (this._events[name] = []);
- events.push({callback: callback, context: context, ctx: context || this});
- return this;
- },
- // Bind an event to only be triggered a single time. After the first time
- // the callback is invoked, it will be removed.
- once: function(name, callback, context) {
- if (!eventsApi(this, 'once', name, [callback, context]) || !callback) return this;
- var self = this;
- var once = _.once(function() {
- self.off(name, once);
- callback.apply(this, arguments);
- });
- once._callback = callback;
- return this.on(name, once, context);
- },
- // Remove one or many callbacks. If `context` is null, removes all
- // callbacks with that function. If `callback` is null, removes all
- // callbacks for the event. If `name` is null, removes all bound
- // callbacks for all events.
- off: function(name, callback, context) {
- if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
- // Remove all callbacks for all events.
- if (!name && !callback && !context) {
- this._events = void 0;
- return this;
- }
- var names = name ? [name] : _.keys(this._events);
- for (var i = 0, length = names.length; i < length; i++) {
- name = names[i];
- // Bail out if there are no events stored.
- var events = this._events[name];
- if (!events) continue;
- // Remove all callbacks for this event.
- if (!callback && !context) {
- delete this._events[name];
- continue;
- }
- // Find any remaining events.
- var remaining = [];
- for (var j = 0, k = events.length; j < k; j++) {
- var event = events[j];
- if (
- callback && callback !== event.callback &&
- callback !== event.callback._callback ||
- context && context !== event.context
- ) {
- remaining.push(event);
- }
- }
- // Replace events if there are any remaining. Otherwise, clean up.
- if (remaining.length) {
- this._events[name] = remaining;
- } else {
- delete this._events[name];
- }
- }
- return this;
- },
- // Trigger one or many events, firing all bound callbacks. Callbacks are
- // passed the same arguments as `trigger` is, apart from the event name
- // (unless you're listening on `"all"`, which will cause your callback to
- // receive the true name of the event as the first argument).
- trigger: function(name) {
- if (!this._events) return this;
- var args = slice.call(arguments, 1);
- if (!eventsApi(this, 'trigger', name, args)) return this;
- var events = this._events[name];
- var allEvents = this._events.all;
- if (events) triggerEvents(events, args);
- if (allEvents) triggerEvents(allEvents, arguments);
- return this;
- },
- // Tell this object to stop listening to either specific events ... or
- // to every object it's currently listening to.
- stopListening: function(obj, name, callback) {
- var listeningTo = this._listeningTo;
- if (!listeningTo) return this;
- var remove = !name && !callback;
- if (!callback && typeof name === 'object') callback = this;
- if (obj) (listeningTo = {})[obj._listenId] = obj;
- for (var id in listeningTo) {
- obj = listeningTo[id];
- obj.off(name, callback, this);
- if (remove || _.isEmpty(obj._events)) delete this._listeningTo[id];
- }
- return this;
- }
- };
- // Regular expression used to split event strings.
- var eventSplitter = /\s+/;
- // Implement fancy features of the Events API such as multiple event
- // names `"change blur"` and jQuery-style event maps `{change: action}`
- // in terms of the existing API.
- var eventsApi = function(obj, action, name, rest) {
- if (!name) return true;
- // Handle event maps.
- if (typeof name === 'object') {
- for (var key in name) {
- obj[action].apply(obj, [key, name[key]].concat(rest));
- }
- return false;
- }
- // Handle space separated event names.
- if (eventSplitter.test(name)) {
- var names = name.split(eventSplitter);
- for (var i = 0, length = names.length; i < length; i++) {
- obj[action].apply(obj, [names[i]].concat(rest));
- }
- return false;
- }
- return true;
- };
- // A difficult-to-believe, but optimized internal dispatch function for
- // triggering events. Tries to keep the usual cases speedy (most internal
- // Backbone events have 3 arguments).
- var triggerEvents = function(events, args) {
- var ev, i = -1, l = events.length, a1 = args[0], a2 = args[1], a3 = args[2];
- switch (args.length) {
- case 0: while (++i < l) (ev = events[i]).callback.call(ev.ctx); return;
- case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1); return;
- case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2); return;
- case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2, a3); return;
- default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args); return;
- }
- };
- var listenMethods = {listenTo: 'on', listenToOnce: 'once'};
- // Inversion-of-control versions of `on` and `once`. Tell *this* object to
- // listen to an event in another object ... keeping track of what it's
- // listening to.
- _.each(listenMethods, function(implementation, method) {
- Events[method] = function(obj, name, callback) {
- var listeningTo = this._listeningTo || (this._listeningTo = {});
- var id = obj._listenId || (obj._listenId = _.uniqueId('l'));
- listeningTo[id] = obj;
- if (!callback && typeof name === 'object') callback = this;
- obj[implementation](name, callback, this);
- return this;
- };
- });
- // Aliases for backwards compatibility.
- Events.bind = Events.on;
- Events.unbind = Events.off;
- // Allow the `Backbone` object to serve as a global event bus, for folks who
- // want global "pubsub" in a convenient place.
- _.extend(Backbone, Events);
- // Backbone.Model
- // --------------
- // Backbone **Models** are the basic data object in the framework --
- // frequently representing a row in a table in a database on your server.
- // A discrete chunk of data and a bunch of useful, related methods for
- // performing computations and transformations on that data.
- // Create a new model with the specified attributes. A client id (`cid`)
- // is automatically generated and assigned for you.
- var Model = Backbone.Model = function(attributes, options) {
- var attrs = attributes || {};
- options || (options = {});
- this.cid = _.uniqueId('c');
- this.attributes = {};
- if (options.collection) this.collection = options.collection;
- if (options.parse) attrs = this.parse(attrs, options) || {};
- attrs = _.defaults({}, attrs, _.result(this, 'defaults'));
- this.set(attrs, options);
- this.changed = {};
- this.initialize.apply(this, arguments);
- };
- // Attach all inheritable methods to the Model prototype.
- _.extend(Model.prototype, Events, {
- // A hash of attributes whose current and previous value differ.
- changed: null,
- // The value returned during the last failed validation.
- validationError: null,
- // 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(options) {
- return _.clone(this.attributes);
- },
- // Proxy `Backbone.sync` by default -- but override this if you need
- // custom syncing semantics for *this* particular model.
- sync: function() {
- return Backbone.sync.apply(this, arguments);
- },
- // Get the value of an attribute.
- get: function(attr) {
- return this.attributes[attr];
- },
- // Get the HTML-escaped value of an attribute.
- escape: function(attr) {
- return _.escape(this.get(attr));
- },
- // Returns `true` if the attribute contains a value that is not null
- // or undefined.
- has: function(attr) {
- return this.get(attr) != null;
- },
- // Set a hash of model attributes on the object, firing `"change"`. This is
- // the core primitive operation of a model, updating the data and notifying
- // anyone who needs to know about the change in state. The heart of the beast.
- set: function(key, val, options) {
- var attr, attrs, unset, changes, silent, changing, prev, current;
- if (key == null) return this;
- // Handle both `"key", value` and `{key: value}` -style arguments.
- if (typeof key === 'object') {
- attrs = key;
- options = val;
- } else {
- (attrs = {})[key] = val;
- }
- options || (options = {});
- // Run validation.
- if (!this._validate(attrs, options)) return false;
- // Extract attributes and options.
- unset = options.unset;
- silent = options.silent;
- changes = [];
- changing = this._changing;
- this._changing = true;
- if (!changing) {
- this._previousAttributes = _.clone(this.attributes);
- this.changed = {};
- }
- current = this.attributes, prev = this._previousAttributes;
- // Check for changes of `id`.
- if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
- // For each `set` attribute, update or delete the current value.
- for (attr in attrs) {
- val = attrs[attr];
- if (!_.isEqual(current[attr], val)) changes.push(attr);
- if (!_.isEqual(prev[attr], val)) {
- this.changed[attr] = val;
- } else {
- delete this.changed[attr];
- }
- unset ? delete current[attr] : current[attr] = val;
- }
- // Trigger all relevant attribute changes.
- if (!silent) {
- if (changes.length) this._pending = options;
- for (var i = 0, length = changes.length; i < length; i++) {
- this.trigger('change:' + changes[i], this, current[changes[i]], options);
- }
- }
- // You might be wondering why there's a `while` loop here. Changes can
- // be recursively nested within `"change"` events.
- if (changing) return this;
- if (!silent) {
- while (this._pending) {
- options = this._pending;
- this._pending = false;
- this.trigger('change', this, options);
- }
- }
- this._pending = false;
- this._changing = false;
- return this;
- },
- // Remove an attribute from the model, firing `"change"`. `unset` is a noop
- // if the attribute doesn't exist.
- unset: function(attr, options) {
- return this.set(attr, void 0, _.extend({}, options, {unset: true}));
- },
- // Clear all attributes on the model, firing `"change"`.
- clear: function(options) {
- var attrs = {};
- for (var key in this.attributes) attrs[key] = void 0;
- return this.set(attrs, _.extend({}, options, {unset: true}));
- },
- // 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 == null) return !_.isEmpty(this.changed);
- return _.has(this.changed, attr);
- },
- // 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. Unset attributes will be set to undefined.
- // You can also pass an attributes object to diff against the model,
- // determining if there *would be* a change.
- changedAttributes: function(diff) {
- if (!diff) return this.hasChanged() ? _.clone(this.changed) : false;
- var val, changed = false;
- var old = this._changing ? this._previousAttributes : this.attributes;
- for (var attr in diff) {
- if (_.isEqual(old[attr], (val = diff[attr]))) continue;
- (changed || (changed = {}))[attr] = val;
- }
- return changed;
- },
- // Get the previous value of an attribute, recorded at the time the last
- // `"change"` event was fired.
- previous: function(attr) {
- if (attr == null || !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);
- },
- // Fetch the model from the server. If the server's representation of the
- // model differs from its current attributes, they will be overridden,
- // triggering a `"change"` event.
- fetch: function(options) {
- options = options ? _.clone(options) : {};
- if (options.parse === void 0) options.parse = true;
- var model = this;
- var success = options.success;
- options.success = function(resp) {
- if (!model.set(model.parse(resp, options), options)) return false;
- if (success) success(model, resp, options);
- model.trigger('sync', model, resp, options);
- };
- wrapError(this, options);
- return this.sync('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(key, val, options) {
- var attrs, method, xhr, attributes = this.attributes;
- // Handle both `"key", value` and `{key: value}` -style arguments.
- if (key == null || typeof key === 'object') {
- attrs = key;
- options = val;
- } else {
- (attrs = {})[key] = val;
- }
- options = _.extend({validate: true}, options);
- // If we're not waiting and attributes exist, save acts as
- // `set(attr).save(null, opts)` with validation. Otherwise, check if
- // the model will be valid when the attributes, if any, are set.
- if (attrs && !options.wait) {
- if (!this.set(attrs, options)) return false;
- } else {
- if (!this._validate(attrs, options)) return false;
- }
- // Set temporary attributes if `{wait: true}`.
- if (attrs && options.wait) {
- this.attributes = _.extend({}, attributes, attrs);
- }
- // After a successful server-side save, the client is (optionally)
- // updated with the server-side state.
- if (options.parse === void 0) options.parse = true;
- var model = this;
- var success = options.success;
- options.success = function(resp) {
- // Ensure attributes are restored during synchronous saves.
- model.attributes = attributes;
- var serverAttrs = model.parse(resp, options);
- if (options.wait) serverAttrs = _.extend(attrs || {}, serverAttrs);
- if (_.isObject(serverAttrs) && !model.set(serverAttrs, options)) {
- return false;
- }
- if (success) success(model, resp, options);
- model.trigger('sync', model, resp, options);
- };
- wrapError(this, options);
- method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
- if (method === 'patch') options.attrs = attrs;
- xhr = this.sync(method, this, options);
- // Restore attributes.
- if (attrs && options.wait) this.attributes = attributes;
- return xhr;
- },
- // Destroy this model on the server if it was already persisted.
- // Optimistically removes the model from its collection, if it has one.
- // If `wait: true` is passed, waits for the server to respond before removal.
- destroy: function(options) {
- options = options ? _.clone(options) : {};
- var model = this;
- var success = options.success;
- var destroy = function() {
- model.trigger('destroy', model, model.collection, options);
- };
- options.success = function(resp) {
- if (options.wait || model.isNew()) destroy();
- if (success) success(model, resp, options);
- if (!model.isNew()) model.trigger('sync', model, resp, options);
- };
- if (this.isNew()) {
- options.success();
- return false;
- }
- wrapError(this, options);
- var xhr = this.sync('delete', this, options);
- if (!options.wait) destroy();
- return xhr;
- },
- // 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 =
- _.result(this, 'urlRoot') ||
- _.result(this.collection, 'url') ||
- urlError();
- if (this.isNew()) return base;
- return base.replace(/([^\/])$/, '$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, options) {
- return resp;
- },
- // Create a new model with identical attributes to this one.
- clone: function() {
- return new this.constructor(this.attributes);
- },
- // A model is new if it has never been saved to the server, and lacks an id.
- isNew: function() {
- return !this.has(this.idAttribute);
- },
- // Check if the model is currently in a valid state.
- isValid: function(options) {
- return this._validate({}, _.extend(options || {}, { validate: true }));
- },
- // Run validation against the next complete set of model attributes,
- // returning `true` if all is well. Otherwise, fire an `"invalid"` event.
- _validate: function(attrs, options) {
- if (!options.validate || !this.validate) return true;
- attrs = _.extend({}, this.attributes, attrs);
- var error = this.validationError = this.validate(attrs, options) || null;
- if (!error) return true;
- this.trigger('invalid', this, error, _.extend(options, {validationError: error}));
- return false;
- }
- });
- // Underscore methods that we want to implement on the Model.
- var modelMethods = ['keys', 'values', 'pairs', 'invert', 'pick', 'omit'];
- // Mix in each Underscore method as a proxy to `Model#attributes`.
- _.each(modelMethods, function(method) {
- if (!_[method]) return;
- Model.prototype[method] = function() {
- var args = slice.call(arguments);
- args.unshift(this.attributes);
- return _[method].apply(_, args);
- };
- });
- // Backbone.Collection
- // -------------------
- // If models tend to represent a single row of data, a Backbone Collection is
- // more analagous to a table full of data ... or a small slice or page of that
- // table, or a collection of rows that belong together for a particular reason
- // -- all of the messages in this particular folder, all of the documents
- // belonging to this particular author, and so on. Collections maintain
- // indexes of their models, both in order, and for lookup by `id`.
- // Create a new **Collection**, perhaps to contain a specific type of `model`.
- // If a `comparator` is specified, the Collection will maintain
- // its models in sort order, as they're added and removed.
- var Collection = Backbone.Collection = function(models, options) {
- options || (options = {});
- if (options.model) this.model = options.model;
- if (options.comparator !== void 0) this.comparator = options.comparator;
- this._reset();
- this.initialize.apply(this, arguments);
- if (models) this.reset(models, _.extend({silent: true}, options));
- };
- // Default options for `Collection#set`.
- var setOptions = {add: true, remove: true, merge: true};
- var addOptions = {add: true, remove: false};
- // Define the Collection's inheritable methods.
- _.extend(Collection.prototype, Events, {
- // The default model for a collection is just a **Backbone.Model**.
- // This should be overridden in most cases.
- model: 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(options) {
- return this.map(function(model){ return model.toJSON(options); });
- },
- // Proxy `Backbone.sync` by default.
- sync: function() {
- return Backbone.sync.apply(this, arguments);
- },
- // Add a model, or list of models to the set.
- add: function(models, options) {
- return this.set(models, _.extend({merge: false}, options, addOptions));
- },
- // Remove a model, or a list of models from the set.
- remove: function(models, options) {
- var singular = !_.isArray(models);
- models = singular ? [models] : _.clone(models);
- options || (options = {});
- for (var i = 0, length = models.length; i < length; i++) {
- var model = models[i] = this.get(models[i]);
- if (!model) continue;
- delete this._byId[model.id];
- delete this._byId[model.cid];
- var index = this.indexOf(model);
- this.models.splice(index, 1);
- this.length--;
- if (!options.silent) {
- options.index = index;
- model.trigger('remove', model, this, options);
- }
- this._removeReference(model, options);
- }
- return singular ? models[0] : models;
- },
- // Update a collection by `set`-ing a new list of models, adding new ones,
- // removing models that are no longer present, and merging models that
- // already exist in the collection, as necessary. Similar to **Model#set**,
- // the core operation for updating the data contained by the collection.
- set: function(models, options) {
- options = _.defaults({}, options, setOptions);
- if (options.parse) models = this.parse(models, options);
- var singular = !_.isArray(models);
- models = singular ? (models ? [models] : []) : models.slice();
- var id, model, attrs, existing, sort;
- var at = options.at;
- var sortable = this.comparator && (at == null) && options.sort !== false;
- var sortAttr = _.isString(this.comparator) ? this.comparator : null;
- var toAdd = [], toRemove = [], modelMap = {};
- var add = options.add, merge = options.merge, remove = options.remove;
- var order = !sortable && add && remove ? [] : false;
- // Turn bare objects into model references, and prevent invalid models
- // from being added.
- for (var i = 0, length = models.length; i < length; i++) {
- attrs = models[i] || {};
- if (attrs instanceof Model) {
- id = model = attrs;
- } else {
- id = attrs[this.model.prototype.idAttribute || 'id'];
- }
- // If a duplicate is found, prevent it from being added and
- // optionally merge it into the existing model.
- if (existing = this.get(id)) {
- if (remove) modelMap[existing.cid] = true;
- if (merge) {
- attrs = attrs === model ? model.attributes : attrs;
- if (options.parse) attrs = existing.parse(attrs, options);
- existing.set(attrs, options);
- if (sortable && !sort && existing.hasChanged(sortAttr)) sort = true;
- }
- models[i] = existing;
- // If this is a new, valid model, push it to the `toAdd` list.
- } else if (add) {
- model = models[i] = this._prepareModel(attrs, options);
- if (!model) continue;
- toAdd.push(model);
- this._addReference(model, options);
- }
- // Do not add multiple models with the same `id`.
- model = existing || model;
- if (!model) continue;
- if (order && (model.isNew() || !modelMap[model.id])) order.push(model);
- modelMap[model.id] = true;
- }
- // Remove nonexistent models if appropriate.
- if (remove) {
- for (var i = 0, length = this.length; i < length; i++) {
- if (!modelMap[(model = this.models[i]).cid]) toRemove.push(model);
- }
- if (toRemove.length) this.remove(toRemove, options);
- }
- // See if sorting is needed, update `length` and splice in new models.
- if (toAdd.length || (order && order.length)) {
- if (sortable) sort = true;
- this.length += toAdd.length;
- if (at != null) {
- for (var i = 0, length = toAdd.length; i < length; i++) {
- this.models.splice(at + i, 0, toAdd[i]);
- }
- } else {
- if (order) this.models.length = 0;
- var orderedModels = order || toAdd;
- for (var i = 0, length = orderedModels.length; i < length; i++) {
- this.models.push(orderedModels[i]);
- }
- }
- }
- // Silently sort the collection if appropriate.
- if (sort) this.sort({silent: true});
- // Unless silenced, it's time to fire all appropriate add/sort events.
- if (!options.silent) {
- for (var i = 0, length = toAdd.length; i < length; i++) {
- (model = toAdd[i]).trigger('add', model, this, options);
- }
- if (sort || (order && order.length)) this.trigger('sort', this, options);
- }
- // Return the added (or merged) model (or models).
- return singular ? models[0] : models;
- },
- // 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 granular `add` or `remove` events. Fires `reset` when finished.
- // Useful for bulk operations and optimizations.
- reset: function(models, options) {
- options || (options = {});
- for (var i = 0, length = this.models.length; i < length; i++) {
- this._removeReference(this.models[i], options);
- }
- options.previousModels = this.models;
- this._reset();
- models = this.add(models, _.extend({silent: true}, options));
- if (!options.silent) this.trigger('reset', this, options);
- return models;
- },
- // Add a model to the end of the collection.
- push: function(model, options) {
- return this.add(model, _.extend({at: this.length}, options));
- },
- // Remove a model from the end of the collection.
- pop: function(options) {
- var model = this.at(this.length - 1);
- this.remove(model, options);
- return model;
- },
- // Add a model to the beginning of the collection.
- unshift: function(model, options) {
- return this.add(model, _.extend({at: 0}, options));
- },
- // Remove a model from the beginning of the collection.
- shift: function(options) {
- var model = this.at(0);
- this.remove(model, options);
- return model;
- },
- // Slice out a sub-array of models from the collection.
- slice: function() {
- return slice.apply(this.models, arguments);
- },
- // Get a model from the set by id.
- get: function(obj) {
- if (obj == null) return void 0;
- return this._byId[obj] || this._byId[obj.id] || this._byId[obj.cid];
- },
- // Get the model at the given index.
- at: function(index) {
- return this.models[index];
- },
- // Return models with matching attributes. Useful for simple cases of
- // `filter`.
- where: function(attrs, first) {
- if (_.isEmpty(attrs)) return first ? void 0 : [];
- return this[first ? 'find' : 'filter'](function(model) {
- for (var key in attrs) {
- if (attrs[key] !== model.get(key)) return false;
- }
- return true;
- });
- },
- // Return the first model with matching attributes. Useful for simple cases
- // of `find`.
- findWhere: function(attrs) {
- return this.where(attrs, true);
- },
- // 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) {
- if (!this.comparator) throw new Error('Cannot sort a set without a comparator');
- options || (options = {});
- // Run sort based on type of `comparator`.
- if (_.isString(this.comparator) || this.comparator.length === 1) {
- this.models = this.sortBy(this.comparator, this);
- } else {
- this.models.sort(_.bind(this.comparator, this));
- }
- if (!options.silent) this.trigger('sort', this, options);
- return this;
- },
- // Pluck an attribute from each model in the collection.
- pluck: function(attr) {
- return _.invoke(this.models, 'get', attr);
- },
- // Fetch the default set of models for this collection, resetting the
- // collection when they arrive. If `reset: true` is passed, the response
- // data will be passed through the `reset` method instead of `set`.
- fetch: function(options) {
- options = options ? _.clone(options) : {};
- if (options.parse === void 0) options.parse = true;
- var success = options.success;
- var collection = this;
- options.success = function(resp) {
- var method = options.reset ? 'reset' : 'set';
- collection[method](resp, options);
- if (success) success(collection, resp, options);
- collection.trigger('sync', collection, resp, options);
- };
- wrapError(this, options);
- return this.sync('read', this, options);
- },
- // Create a new instance of a model in this collection. Add the model to the
- // collection immediately, unless `wait: true` is passed, in which case we
- // wait for the server to agree.
- create: function(model, options) {
- options = options ? _.clone(options) : {};
- if (!(model = this._prepareModel(model, options))) return false;
- if (!options.wait) this.add(model, options);
- var collection = this;
- var success = options.success;
- options.success = function(model, resp) {
- if (options.wait) collection.add(model, options);
- if (success) success(model, resp, options);
- };
- 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, options) {
- return resp;
- },
- // Create a new collection with an identical list of models as this one.
- clone: function() {
- return new this.constructor(this.models);
- },
- // Private method to reset all internal state. Called when the collection
- // is first initialized or reset.
- _reset: function() {
- this.length = 0;
- this.models = [];
- this._byId = {};
- },
- // Prepare a hash of attributes (or other model) to be added to this
- // collection.
- _prepareModel: function(attrs, options) {
- if (attrs instanceof Model) return attrs;
- options = options ? _.clone(options) : {};
- options.collection = this;
- var model = new this.model(attrs, options);
- if (!model.validationError) return model;
- this.trigger('invalid', this, model.validationError, options);
- return false;
- },
- // Internal method to create a model's ties to a collection.
- _addReference: function(model, options) {
- this._byId[model.cid] = model;
- if (model.id != null) this._byId[model.id] = model;
- if (!model.collection) model.collection = this;
- model.on('all', this._onModelEvent, this);
- },
- // Internal method to sever a model's ties to a collection.
- _removeReference: function(model, options) {
- if (this === model.collection) delete model.collection;
- model.off('all', this._onModelEvent, this);
- },
- // 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(event, model, collection, options) {
- if ((event === 'add' || event === 'remove') && collection !== this) return;
- if (event === 'destroy') this.remove(model, options);
- if (model && event === 'change:' + model.idAttribute) {
- delete this._byId[model.previous(model.idAttribute)];
- if (model.id != null) this._byId[model.id] = model;
- }
- this.trigger.apply(this, arguments);
- }
- });
- // Underscore methods that we want to implement on the Collection.
- // 90% of the core usefulness of Backbone Collections is actually implemented
- // right here:
- var methods = ['forEach', 'each', 'map', 'collect', 'reduce', 'foldl',
- 'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
- 'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
- 'max', 'min', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
- 'tail', 'drop', 'last', 'without', 'difference', 'indexOf', 'shuffle',
- 'lastIndexOf', 'isEmpty', 'chain', 'sample', 'partition'];
- // Mix in each Underscore method as a proxy to `Collection#models`.
- _.each(methods, function(method) {
- if (!_[method]) return;
- Collection.prototype[method] = function() {
- var args = slice.call(arguments);
- args.unshift(this.models);
- return _[method].apply(_, args);
- };
- });
- // Underscore methods that take a property name as an argument.
- var attributeMethods = ['groupBy', 'countBy', 'sortBy', 'indexBy'];
- // Use attributes instead of properties.
- _.each(attributeMethods, function(method) {
- if (!_[method]) return;
- Collection.prototype[method] = function(value, context) {
- var iterator = _.isFunction(value) ? value : function(model) {
- return model.get(value);
- };
- return _[method](this.models, iterator, context);
- };
- });
- // Backbone.View
- // -------------
- // Backbone Views are almost more convention than they are actual code. A View
- // is simply a JavaScript object that represents a logical chunk of UI in the
- // DOM. This might be a single item, an entire list, a sidebar or panel, or
- // even the surrounding frame which wraps your whole app. Defining a chunk of
- // UI as a **View** allows you to define your DOM events declaratively, without
- // having to worry about render order ... and makes it easy for the view to
- // react to specific changes in the state of your models.
- // Creating a Backbone.View creates its initial element outside of the DOM,
- // if an existing element is not provided...
- var View = Backbone.View = function(options) {
- this.cid = _.uniqueId('view');
- options || (options = {});
- _.extend(this, _.pick(options, viewOptions));
- this._ensureElement();
- this.initialize.apply(this, arguments);
- this.delegateEvents();
- };
- // Cached regex to split keys for `delegate`.
- var delegateEventSplitter = /^(\S+)\s*(.*)$/;
- // List of view options to be merged as properties.
- var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName', 'events'];
- // Set up all inheritable **Backbone.View** properties and methods.
- _.extend(View.prototype, Events, {
- // The default `tagName` of a View's element is `"div"`.
- tagName: 'div',
- // jQuery delegate for element lookup, scoped to DOM elements within the
- // current view. This should be preferred to global lookups where possible.
- $: function(selector) {
- return this.$el.find(selector);
- },
- // 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 by taking the element out of the DOM, and removing any
- // applicable Backbone.Events listeners.
- remove: function() {
- this.$el.remove();
- this.stopListening();
- return this;
- },
- // Change the view's element (`this.el` property), including event
- // re-delegation.
- setElement: function(element, delegate) {
- if (this.$el) this.undelegateEvents();
- this.$el = element instanceof Backbone.$ ? element : Backbone.$(element);
- this.el = this.$el[0];
- if (delegate !== false) this.delegateEvents();
- return this;
- },
- // Set callbacks, where `this.events` is a hash of
- //
- // *{"event selector": "callback"}*
- //
- // {
- // 'mousedown .title': 'edit',
- // 'click .button': 'save',
- // 'click .open': function(e) { ... }
- // }
- //
- // 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 = _.result(this, 'events')))) return this;
- this.undelegateEvents();
- for (var key in events) {
- var method = events[key];
- if (!_.isFunction(method)) method = this[events[key]];
- if (!method) continue;
- var match = key.match(delegateEventSplitter);
- var eventName = match[1], selector = match[2];
- method = _.bind(method, this);
- eventName += '.delegateEvents' + this.cid;
- if (selector === '') {
- this.$el.on(eventName, method);
- } else {
- this.$el.on(eventName, selector, method);
- }
- }
- return this;
- },
- // Clears all callbacks previously bound to the view with `delegateEvents`.
- // You usually don't need to use this, but may wish to if you have multiple
- // Backbone views attached to the same DOM element.
- undelegateEvents: function() {
- this.$el.off('.delegateEvents' + this.cid);
- return this;
- },
- // Ensure that the View has a DOM element to render into.
- // If `this.el` is a string, pass it through `$()`, 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 = _.extend({}, _.result(this, 'attributes'));
- if (this.id) attrs.id = _.result(this, 'id');
- if (this.className) attrs['class'] = _.result(this, 'className');
- var $el = Backbone.$('<' + _.result(this, 'tagName') + '>').attr(attrs);
- this.setElement($el, false);
- } else {
- this.setElement(_.result(this, 'el'), false);
- }
- }
- });
- // 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 options, unless specified.
- _.defaults(options || (options = {}), {
- emulateHTTP: Backbone.emulateHTTP,
- emulateJSON: Backbone.emulateJSON
- });
- // Default JSON-request options.
- var params = {type: type, dataType: 'json'};
- // Ensure that we have a URL.
- if (!options.url) {
- params.url = _.result(model, 'url') || urlError();
- }
- // Ensure that we have the appropriate request data.
- if (options.data == null && model && (method === 'create' || method === 'update' || method === 'patch')) {
- params.contentType = 'application/json';
- params.data = JSON.stringify(options.attrs || model.toJSON(options));
- }
- // For older servers, emulate JSON by encoding the request into an HTML-form.
- if (options.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 (options.emulateHTTP && (type === 'PUT' || type === 'DELETE' || type === 'PATCH')) {
- params.type = 'POST';
- if (options.emulateJSON) params.data._method = type;
- var beforeSend = options.beforeSend;
- …
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