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todomvc
Commit fb246fbf authored by Sindre Sorhus's avatar Sindre Sorhus
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Merge pull request #450 from passy/ts-backbone-update 

Ts backbone update
parents 9040e970 81906dc8
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Showing with 1807 additions and 72 deletions
labs/architecture-examples/typescript-backbone/index.html
View file @ fb246fbf
......@@ -106,10 +106,10 @@ https://github.com/documentcloud/backbone/blob/master/examples/todos/index.html
<% } %>
</script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.3/underscore-min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/backbone.js/0.9.9/backbone-min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/backbone-localstorage.js/1.0/backbone.localStorage-min.js"></script>
<script src="../../../assets/jquery.min.js"></script>
<script src="../../../assets/lodash.min.js"></script>
<script src="js/libs/backbone/backbone.js"></script>
<script src="js/libs/backbone/backbone.localStorage.js"></script>
<script src="js/app.js"></script>
</body>
</html>
labs/architecture-examples/typescript-backbone/js/app.js
View file @ fb246fbf
......@@ -11,20 +11,20 @@ var Todo = (function (_super) {
}
Todo.prototype.defaults = function () {
return {
content: "empty todo...",
content: '',
done: false
};
};
Todo.prototype.initialize = function () {
if(!this.get("content")) {
if(!this.get('content')) {
this.set({
"content": this.defaults().content
'content': this.defaults().content
});
}
};
Todo.prototype.toggle = function () {
this.save({
done: !this.get("done")
done: !this.get('done')
});
};
Todo.prototype.clear = function () {
......@@ -38,7 +38,7 @@ var TodoList = (function (_super) {
_super.apply(this, arguments);
this.model = Todo;
this.localStorage = new Store("todos-backbone");
this.localStorage = new Store('todos-typescript-backbone');
}
TodoList.prototype.done = function () {
return this.filter(function (todo) {
......@@ -63,13 +63,13 @@ var Todos = new TodoList();
var TodoView = (function (_super) {
__extends(TodoView, _super);
function TodoView(options) {
this.tagName = "li";
this.tagName = 'li';
this.events = {
"click .check": "toggleDone",
"dblclick label.todo-content": "edit",
"click button.destroy": "clear",
"keypress .todo-input": "updateOnEnter",
"blur .todo-input": "close"
'click .check': 'toggleDone',
'dblclick label.todo-content': 'edit',
'click button.destroy': 'clear',
'keypress .todo-input': 'updateOnEnter',
'blur .todo-input': 'close'
};
_super.call(this, options);
this.template = _.template($('#item-template').html());
......@@ -77,6 +77,7 @@ var TodoView = (function (_super) {
this.model.bind('change', this.render);
this.model.bind('destroy', this.remove);
}
TodoView.ENTER_KEY = 13;
TodoView.prototype.render = function () {
this.$el.html(this.template(this.model.toJSON()));
this.input = this.$('.todo-input');
......@@ -86,17 +87,17 @@ var TodoView = (function (_super) {
this.model.toggle();
};
TodoView.prototype.edit = function () {
this.$el.addClass("editing");
this.$el.addClass('editing');
this.input.focus();
};
TodoView.prototype.close = function () {
this.model.save({
content: this.input.val()
});
this.$el.removeClass("editing");
this.$el.removeClass('editing');
};
TodoView.prototype.updateOnEnter = function (e) {
if(e.keyCode == 13) {
if(e.keyCode == TodoView.ENTER_KEY) {
close();
}
};
......@@ -110,16 +111,16 @@ var AppView = (function (_super) {
function AppView() {
_super.call(this);
this.events = {
"keypress #new-todo": "createOnEnter",
"keyup #new-todo": "showTooltip",
"click .todo-clear button": "clearCompleted",
"click .mark-all-done": "toggleAllComplete"
'keypress #new-todo': 'createOnEnter',
'click .todo-clear button': 'clearCompleted',
'click .mark-all-done': 'toggleAllComplete'
};
this.tooltipTimeout = null;
this.setElement($("#todoapp"), true);
this.setElement($('#todoapp'), true);
_.bindAll(this, 'addOne', 'addAll', 'render', 'toggleAllComplete');
this.input = this.$("#new-todo");
this.allCheckbox = this.$(".mark-all-done")[0];
this.input = this.$('#new-todo');
this.allCheckbox = this.$('.mark-all-done')[0];
this.mainElement = this.$('#main')[0];
this.footerElement = this.$('#footer')[0];
this.statsTemplate = _.template($('#stats-template').html());
Todos.bind('add', this.addOne);
Todos.bind('reset', this.addAll);
......@@ -129,18 +130,25 @@ var AppView = (function (_super) {
AppView.prototype.render = function () {
var done = Todos.done().length;
var remaining = Todos.remaining().length;
if(Todos.length) {
this.mainElement.style.display = 'block';
this.footerElement.style.display = 'block';
this.$('#todo-stats').html(this.statsTemplate({
total: Todos.length,
done: done,
remaining: remaining
}));
} else {
this.mainElement.style.display = 'none';
this.footerElement.style.display = 'none';
}
this.allCheckbox.checked = !remaining;
};
AppView.prototype.addOne = function (todo) {
var view = new TodoView({
model: todo
});
this.$("#todo-list").append(view.render().el);
this.$('#todo-list').append(view.render().el);
};
AppView.prototype.addAll = function () {
Todos.each(this.addOne);
......@@ -165,20 +173,6 @@ var AppView = (function (_super) {
});
return false;
};
AppView.prototype.showTooltip = function (e) {
var tooltip = $(".ui-tooltip-top");
var val = this.input.val();
tooltip.fadeOut();
if(this.tooltipTimeout) {
clearTimeout(this.tooltipTimeout);
}
if(val == '' || val == this.input.attr('placeholder')) {
return;
}
this.tooltipTimeout = _.delay(function () {
return tooltip.show().fadeIn();
}, 1000);
};
AppView.prototype.toggleAllComplete = function () {
var done = this.allCheckbox.checked;
Todos.each(function (todo) {
......
labs/architecture-examples/typescript-backbone/js/app.ts
View file @ fb246fbf
......@@ -143,7 +143,7 @@ class TodoList extends Backbone.Collection {
// Filter down the list to only todo items that are still not finished.
remaining() {
return this.without(this.done());
return this.without.apply(this, this.done());
}
// We keep the Todos in sequential order, despite being saved by unordered
......@@ -178,6 +178,8 @@ class TodoView extends Backbone.View {
model: Todo;
input: any;
static ENTER_KEY:number = 13;
constructor (options? ) {
//... is a list tag.
this.tagName = 'li';
......@@ -200,7 +202,7 @@ class TodoView extends Backbone.View {
this.model.bind('change', this.render);
this.model.bind('destroy', this.remove);
}
w
// Re-render the contents of the todo item.
render() {
this.$el.html(this.template(this.model.toJSON()));
......@@ -227,7 +229,7 @@ w
// If you hit `enter`, we're through editing the item.
updateOnEnter(e) {
if (e.keyCode == 13) close();
if (e.keyCode == TodoView.ENTER_KEY) close();
}
// Remove the item, destroy the model.
......@@ -252,6 +254,8 @@ class AppView extends Backbone.View {
input: any;
allCheckbox: HTMLInputElement;
mainElement: HTMLElement;
footerElement: HTMLElement;
statsTemplate: (params: any) => string;
constructor () {
......@@ -267,6 +271,8 @@ class AppView extends Backbone.View {
this.input = this.$('#new-todo');
this.allCheckbox = this.$('.mark-all-done')[0];
this.mainElement = this.$('#main')[0];
this.footerElement = this.$('#footer')[0];
this.statsTemplate = _.template($('#stats-template').html());
Todos.bind('add', this.addOne);
......@@ -282,11 +288,19 @@ class AppView extends Backbone.View {
var done = Todos.done().length;
var remaining = Todos.remaining().length;
if (Todos.length) {
this.mainElement.style.display = 'block';
this.footerElement.style.display = 'block';
this.$('#todo-stats').html(this.statsTemplate({
total: Todos.length,
done: done,
remaining: remaining
}));
} else {
this.mainElement.style.display = 'none';
this.footerElement.style.display = 'none';
}
this.allCheckbox.checked = !remaining;
}
......
labs/architecture-examples/typescript-backbone/js/libs/backbone/backbone.js 0 → 100644
View file @ fb246fbf
// Backbone.js 0.9.9
// (c) 2010-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Backbone may be freely distributed under the MIT license.
// For all details and documentation:
// http://backbonejs.org
(function(){
// Initial Setup
// -------------
// Save a reference to the global object (`window` in the browser, `exports`
// on the server).
var root = this;
// 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 a local reference to array methods.
var array = [];
var push = array.push;
var slice = array.slice;
var splice = array.splice;
// 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 = '0.9.9';
// 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 `$` variable.
Backbone.$ = 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
// ---------------
// 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;
if (typeof name === 'object') {
for (var key in name) {
obj[action].apply(obj, [key, name[key]].concat(rest));
}
} else if (eventSplitter.test(name)) {
var names = name.split(eventSplitter);
for (var i = 0, l = names.length; i < l; i++) {
obj[action].apply(obj, [names[i]].concat(rest));
}
} else {
return true;
}
};
// Optimized internal dispatch function for triggering events. Tries to
// keep the usual cases speedy (most Backbone events have 3 arguments).
var triggerEvents = function(obj, events, args) {
var ev, i = -1, l = events.length;
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, args[0]);
return;
case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, args[0], args[1]);
return;
case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, args[0], args[1], args[2]);
return;
default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args);
}
};
// 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 one or more space separated events, or an events map,
// 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 list = this._events[name] || (this._events[name] = []);
list.push({callback: callback, context: context, ctx: context || this});
return this;
},
// Bind events 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;
this.on(name, once, context);
return this;
},
// 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 `events` is null, removes all bound
// callbacks for all events.
off: function(name, callback, context) {
var list, ev, events, names, i, l, j, k;
if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
if (!name && !callback && !context) {
this._events = {};
return this;
}
names = name ? [name] : _.keys(this._events);
for (i = 0, l = names.length; i < l; i++) {
name = names[i];
if (list = this._events[name]) {
events = [];
if (callback || context) {
for (j = 0, k = list.length; j < k; j++) {
ev = list[j];
if ((callback && callback !== (ev.callback._callback || ev.callback)) ||
(context && context !== ev.context)) {
events.push(ev);
}
}
}
this._events[name] = events;
}
}
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(this, events, args);
if (allEvents) triggerEvents(this, allEvents, arguments);
return this;
},
// An inversion-of-control version of `on`. Tell *this* object to listen to
// an event in another object ... keeping track of what it's listening to.
listenTo: function(object, events, callback) {
var listeners = this._listeners || (this._listeners = {});
var id = object._listenerId || (object._listenerId = _.uniqueId('l'));
listeners[id] = object;
object.on(events, callback || this, this);
return this;
},
// Tell this object to stop listening to either specific events ... or
// to every object it's currently listening to.
stopListening: function(object, events, callback) {
var listeners = this._listeners;
if (!listeners) return;
if (object) {
object.off(events, callback, this);
if (!events && !callback) delete listeners[object._listenerId];
} else {
for (var id in listeners) {
listeners[id].off(null, null, this);
}
this._listeners = {};
}
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
// --------------
// Create a new model, with defined attributes. A client id (`cid`)
// is automatically generated and assigned for you.
var Model = Backbone.Model = function(attributes, options) {
var defaults;
var attrs = attributes || {};
this.cid = _.uniqueId('c');
this.changed = {};
this.attributes = {};
this._changes = [];
if (options && options.collection) this.collection = options.collection;
if (options && options.parse) attrs = this.parse(attrs);
if (defaults = _.result(this, 'defaults')) _.defaults(attrs, defaults);
this.set(attrs, {silent: true});
this._currentAttributes = _.clone(this.attributes);
this._previousAttributes = _.clone(this.attributes);
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 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.
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"` unless
// you choose to silence it.
set: function(key, val, options) {
var attr, attrs;
if (key == null) return this;
// Handle both `"key", value` and `{key: value}` -style arguments.
if (_.isObject(key)) {
attrs = key;
options = val;
} else {
(attrs = {})[key] = val;
}
// Extract attributes and options.
var silent = options && options.silent;
var unset = options && options.unset;
// Run validation.
if (!this._validate(attrs, options)) return false;
// Check for changes of `id`.
if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
var now = this.attributes;
// For each `set` attribute...
for (attr in attrs) {
val = attrs[attr];
// Update or delete the current value, and track the change.
unset ? delete now[attr] : now[attr] = val;
this._changes.push(attr, val);
}
// Signal that the model's state has potentially changed, and we need
// to recompute the actual changes.
this._hasComputed = false;
// Fire the `"change"` events.
if (!silent) this.change(options);
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) {
return this.set(attr, void 0, _.extend({}, options, {unset: true}));
},
// Clear all attributes on the model, firing `"change"` unless you choose
// to silence it.
clear: function(options) {
var attrs = {};
for (var key in this.attributes) attrs[key] = void 0;
return this.set(attrs, _.extend({}, options, {unset: true}));
},
// 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 ? _.clone(options) : {};
if (options.parse === void 0) options.parse = true;
var model = this;
var success = options.success;
options.success = function(resp, status, xhr) {
if (!model.set(model.parse(resp), options)) return false;
if (success) success(model, resp, 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, current, done;
// Handle both `"key", value` and `{key: value}` -style arguments.
if (key == null || _.isObject(key)) {
attrs = key;
options = val;
} else if (key != null) {
(attrs = {})[key] = val;
}
options = options ? _.clone(options) : {};
// If we're "wait"-ing to set changed attributes, validate early.
if (options.wait) {
if (attrs && !this._validate(attrs, options)) return false;
current = _.clone(this.attributes);
}
// Regular saves `set` attributes before persisting to the server.
var silentOptions = _.extend({}, options, {silent: true});
if (attrs && !this.set(attrs, options.wait ? silentOptions : options)) {
return false;
}
// Do not persist invalid models.
if (!attrs && !this._validate(null, options)) return false;
// After a successful server-side save, the client is (optionally)
// updated with the server-side state.
var model = this;
var success = options.success;
options.success = function(resp, status, xhr) {
done = true;
var serverAttrs = model.parse(resp);
if (options.wait) serverAttrs = _.extend(attrs || {}, serverAttrs);
if (!model.set(serverAttrs, options)) return false;
if (success) success(model, resp, options);
};
// Finish configuring and sending the Ajax request.
var method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
if (method == 'patch') options.attrs = attrs;
var xhr = this.sync(method, this, options);
// When using `wait`, reset attributes to original values unless
// `success` has been called already.
if (!done && options.wait) {
this.clear(silentOptions);
this.set(current, silentOptions);
}
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 (this.isNew()) {
options.success();
return false;
}
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 + (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) {
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.id == null;
},
// Call this method to manually fire a `"change"` event for this model and
// a `"change:attribute"` event for each changed attribute.
// Calling this will cause all objects observing the model to update.
change: function(options) {
var changing = this._changing;
this._changing = true;
// Generate the changes to be triggered on the model.
var triggers = this._computeChanges(true);
this._pending = !!triggers.length;
for (var i = triggers.length - 2; i >= 0; i -= 2) {
this.trigger('change:' + triggers[i], this, triggers[i + 1], options);
}
if (changing) return this;
// Trigger a `change` while there have been changes.
while (this._pending) {
this._pending = false;
this.trigger('change', this, options);
this._previousAttributes = _.clone(this.attributes);
}
this._changing = false;
return this;
},
// 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 (!this._hasComputed) this._computeChanges();
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, old = this._previousAttributes;
for (var attr in diff) {
if (_.isEqual(old[attr], (val = diff[attr]))) continue;
(changed || (changed = {}))[attr] = val;
}
return changed;
},
// Looking at the built up list of `set` attribute changes, compute how
// many of the attributes have actually changed. If `loud`, return a
// boiled-down list of only the real changes.
_computeChanges: function(loud) {
this.changed = {};
var already = {};
var triggers = [];
var current = this._currentAttributes;
var changes = this._changes;
// Loop through the current queue of potential model changes.
for (var i = changes.length - 2; i >= 0; i -= 2) {
var key = changes[i], val = changes[i + 1];
if (already[key]) continue;
already[key] = true;
// Check if the attribute has been modified since the last change,
// and update `this.changed` accordingly. If we're inside of a `change`
// call, also add a trigger to the list.
if (current[key] !== val) {
this.changed[key] = val;
if (!loud) continue;
triggers.push(key, val);
current[key] = val;
}
}
if (loud) this._changes = [];
// Signals `this.changed` is current to prevent duplicate calls from `this.hasChanged`.
this._hasComputed = true;
return triggers;
},
// 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);
},
// Run validation against the next complete set of model attributes,
// returning `true` if all is well. If a specific `error` callback has
// been passed, call that instead of firing the general `"error"` event.
_validate: function(attrs, options) {
if (!this.validate) return true;
attrs = _.extend({}, this.attributes, attrs);
var error = this.validate(attrs, options);
if (!error) return true;
if (options && options.error) options.error(this, error, options);
this.trigger('error', this, error, options);
return false;
}
});
// 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.
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));
};
// 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. Pass **silent** to avoid
// firing the `add` event for every new model.
add: function(models, options) {
var i, args, length, model, existing, needsSort;
var at = options && options.at;
var sort = ((options && options.sort) == null ? true : options.sort);
models = _.isArray(models) ? models.slice() : [models];
// Turn bare objects into model references, and prevent invalid models
// from being added.
for (i = models.length - 1; i >= 0; i--) {
if(!(model = this._prepareModel(models[i], options))) {
this.trigger("error", this, models[i], options);
models.splice(i, 1);
continue;
}
models[i] = model;
existing = model.id != null && this._byId[model.id];
// If a duplicate is found, prevent it from being added and
// optionally merge it into the existing model.
if (existing || this._byCid[model.cid]) {
if (options && options.merge && existing) {
existing.set(model.attributes, options);
needsSort = sort;
}
models.splice(i, 1);
continue;
}
// Listen to added models' events, and index models for lookup by
// `id` and by `cid`.
model.on('all', this._onModelEvent, this);
this._byCid[model.cid] = model;
if (model.id != null) this._byId[model.id] = model;
}
// See if sorting is needed, update `length` and splice in new models.
if (models.length) needsSort = sort;
this.length += models.length;
args = [at != null ? at : this.models.length, 0];
push.apply(args, models);
splice.apply(this.models, args);
// Sort the collection if appropriate.
if (needsSort && this.comparator && at == null) this.sort({silent: true});
if (options && options.silent) return this;
// Trigger `add` events.
while (model = models.shift()) {
model.trigger('add', model, this, options);
}
return this;
},
// Remove a model, or a list of models from the set. Pass silent to avoid
// firing the `remove` event for every model removed.
remove: function(models, options) {
var i, l, index, model;
options || (options = {});
models = _.isArray(models) ? models.slice() : [models];
for (i = 0, l = models.length; i < l; i++) {
model = this.get(models[i]);
if (!model) continue;
delete this._byId[model.id];
delete this._byCid[model.cid];
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);
}
return this;
},
// Add a model to the end of the collection.
push: function(model, options) {
model = this._prepareModel(model, options);
this.add(model, _.extend({at: this.length}, options));
return model;
},
// 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) {
model = this._prepareModel(model, options);
this.add(model, _.extend({at: 0}, options));
return model;
},
// 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(begin, end) {
return this.models.slice(begin, end);
},
// Get a model from the set by id.
get: function(obj) {
if (obj == null) return void 0;
return this._byId[obj.id != null ? obj.id : obj] || this._byCid[obj.cid || obj];
},
// 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) {
if (_.isEmpty(attrs)) return [];
return this.filter(function(model) {
for (var key in attrs) {
if (attrs[key] !== model.get(key)) return false;
}
return 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');
}
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 || !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);
},
// Smartly update a collection with a change set of models, adding,
// removing, and merging as necessary.
update: function(models, options) {
var model, i, l, existing;
var add = [], remove = [], modelMap = {};
var idAttr = this.model.prototype.idAttribute;
options = _.extend({add: true, merge: true, remove: true}, options);
if (options.parse) models = this.parse(models);
// Allow a single model (or no argument) to be passed.
if (!_.isArray(models)) models = models ? [models] : [];
// Proxy to `add` for this case, no need to iterate...
if (options.add && !options.remove) return this.add(models, options);
// Determine which models to add and merge, and which to remove.
for (i = 0, l = models.length; i < l; i++) {
model = models[i];
existing = this.get(model.id || model.cid || model[idAttr]);
if (options.remove && existing) modelMap[existing.cid] = true;
if ((options.add && !existing) || (options.merge && existing)) {
add.push(model);
}
}
if (options.remove) {
for (i = 0, l = this.models.length; i < l; i++) {
model = this.models[i];
if (!modelMap[model.cid]) remove.push(model);
}
}
// Remove models (if applicable) before we add and merge the rest.
if (remove.length) this.remove(remove, options);
if (add.length) this.add(add, options);
return this;
},
// 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 `add` or `remove` events. Fires `reset` when finished.
reset: function(models, options) {
options || (options = {});
if (options.parse) models = this.parse(models);
for (var i = 0, l = this.models.length; i < l; i++) {
this._removeReference(this.models[i]);
}
options.previousModels = this.models;
this._reset();
if (models) this.add(models, _.extend({silent: true}, options));
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 ? _.clone(options) : {};
if (options.parse === void 0) options.parse = true;
var collection = this;
var success = options.success;
options.success = function(resp, status, xhr) {
var method = options.update ? 'update' : 'reset';
collection[method](resp, options);
if (success) success(collection, resp, 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) {
var collection = this;
options = options ? _.clone(options) : {};
model = this._prepareModel(model, options);
if (!model) return false;
if (!options.wait) collection.add(model, options);
var success = options.success;
options.success = function(model, resp, options) {
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) {
return resp;
},
// Create a new collection with an identical list of models as this one.
clone: function() {
return new this.constructor(this.models);
},
// 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() {
this.length = 0;
this.models = [];
this._byId = {};
this._byCid = {};
},
// Prepare a model or hash of attributes to be added to this collection.
_prepareModel: function(attrs, options) {
if (attrs instanceof Model) {
if (!attrs.collection) attrs.collection = this;
return attrs;
}
options || (options = {});
options.collection = this;
var model = new this.model(attrs, options);
if (!model._validate(attrs, options)) return false;
return model;
},
// Internal method to remove a model's ties to a collection.
_removeReference: function(model) {
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.
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', 'sortedIndex', 'toArray', 'size', 'first', 'head', 'take',
'initial', 'rest', 'tail', 'last', 'without', 'indexOf', 'shuffle',
'lastIndexOf', 'isEmpty'];
// Mix in each Underscore method as a proxy to `Collection#models`.
_.each(methods, function(method) {
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'];
// Use attributes instead of properties.
_.each(attributeMethods, function(method) {
Collection.prototype[method] = function(value, context) {
var iterator = _.isFunction(value) ? value : function(model) {
return model.get(value);
};
return _[method](this.models, iterator, context);
};
});
// 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.
var Router = 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 optionalParam = /\((.*?)\)/g;
var namedParam = /:\w+/g;
var splatParam = /\*\w+/g;
var escapeRegExp = /[\-{}\[\]+?.,\\\^$|#\s]/g;
// Set up all inheritable **Backbone.Router** properties and methods.
_.extend(Router.prototype, Events, {
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize: function(){},
// Manually bind a single named route to a callback. For example:
//
// this.route('search/:query/p:num', 'search', function(query, num) {
// ...
// });
//
route: function(route, name, callback) {
if (!_.isRegExp(route)) route = this._routeToRegExp(route);
if (!callback) callback = this[name];
Backbone.history.route(route, _.bind(function(fragment) {
var args = this._extractParameters(route, fragment);
callback && callback.apply(this, args);
this.trigger.apply(this, ['route:' + name].concat(args));
Backbone.history.trigger('route', this, name, args);
}, this));
return this;
},
// Simple proxy to `Backbone.history` to save a fragment into the history.
navigate: function(fragment, options) {
Backbone.history.navigate(fragment, options);
return this;
},
// Bind all defined routes to `Backbone.history`. We have to reverse the
// order of the routes here to support behavior where the most general
// routes can be defined at the bottom of the route map.
_bindRoutes: function() {
if (!this.routes) return;
var route, routes = _.keys(this.routes);
while ((route = routes.pop()) != null) {
this.route(route, this.routes[route]);
}
},
// Convert a route string into a regular expression, suitable for matching
// against the current location hash.
_routeToRegExp: function(route) {
route = route.replace(escapeRegExp, '\\$&')
.replace(optionalParam, '(?:$1)?')
.replace(namedParam, '([^\/]+)')
.replace(splatParam, '(.*?)');
return new RegExp('^' + route + '$');
},
// 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.
var History = Backbone.History = function() {
this.handlers = [];
_.bindAll(this, 'checkUrl');
// #1653 - Ensure that `History` can be used outside of the browser.
if (typeof window !== 'undefined') {
this.location = window.location;
this.history = window.history;
}
};
// Cached regex for stripping a leading hash/slash and trailing space.
var routeStripper = /^[#\/]|\s+$/g;
// Cached regex for stripping leading and trailing slashes.
var rootStripper = /^\/+|\/+$/g;
// Cached regex for detecting MSIE.
var isExplorer = /msie [\w.]+/;
// Cached regex for removing a trailing slash.
var trailingSlash = /\/$/;
// Has the history handling already been started?
History.started = false;
// Set up all inheritable **Backbone.History** properties and methods.
_.extend(History.prototype, Events, {
// The default interval to poll for hash changes, if necessary, is
// twenty times a second.
interval: 50,
// Gets the true hash value. Cannot use location.hash directly due to bug
// in Firefox where location.hash will always be decoded.
getHash: function(window) {
var match = (window || this).location.href.match(/#(.*)$/);
return match ? match[1] : '';
},
// 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 || !this._wantsHashChange || forcePushState) {
fragment = this.location.pathname;
var root = this.root.replace(trailingSlash, '');
if (!fragment.indexOf(root)) fragment = fragment.substr(root.length);
} else {
fragment = this.getHash();
}
}
return fragment.replace(routeStripper, '');
},
// Start the hash change handling, returning `true` if the current URL matches
// an existing route, and `false` otherwise.
start: function(options) {
if (History.started) throw new Error("Backbone.history has already been started");
History.started = true;
// Figure out the initial configuration. Do we need an iframe?
// Is pushState desired ... is it available?
this.options = _.extend({}, {root: '/'}, this.options, options);
this.root = this.options.root;
this._wantsHashChange = this.options.hashChange !== false;
this._wantsPushState = !!this.options.pushState;
this._hasPushState = !!(this.options.pushState && this.history && this.history.pushState);
var fragment = this.getFragment();
var docMode = document.documentMode;
var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));
// Normalize root to always include a leading and trailing slash.
this.root = ('/' + this.root + '/').replace(rootStripper, '/');
if (oldIE && this._wantsHashChange) {
this.iframe = Backbone.$('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo('body')[0].contentWindow;
this.navigate(fragment);
}
// Depending on whether we're using pushState or hashes, and whether
// 'onhashchange' is supported, determine how we check the URL state.
if (this._hasPushState) {
Backbone.$(window).bind('popstate', this.checkUrl);
} else if (this._wantsHashChange && ('onhashchange' in window) && !oldIE) {
Backbone.$(window).bind('hashchange', this.checkUrl);
} else if (this._wantsHashChange) {
this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
}
// Determine if we need to change the base url, for a pushState link
// opened by a non-pushState browser.
this.fragment = fragment;
var loc = this.location;
var atRoot = loc.pathname.replace(/[^\/]$/, '$&/') === this.root;
// If we've started off with a route from a `pushState`-enabled browser,
// but we're currently in a browser that doesn't support it...
if (this._wantsHashChange && this._wantsPushState && !this._hasPushState && !atRoot) {
this.fragment = this.getFragment(null, true);
this.location.replace(this.root + this.location.search + '#' + this.fragment);
// Return immediately as browser will do redirect to new url
return true;
// Or if we've started out with a hash-based route, but we're currently
// in a browser where it could be `pushState`-based instead...
} else if (this._wantsPushState && this._hasPushState && atRoot && loc.hash) {
this.fragment = this.getHash().replace(routeStripper, '');
this.history.replaceState({}, document.title, this.root + this.fragment + loc.search);
}
if (!this.options.silent) return this.loadUrl();
},
// Disable Backbone.history, perhaps temporarily. Not useful in a real app,
// but possibly useful for unit testing Routers.
stop: function() {
Backbone.$(window).unbind('popstate', this.checkUrl).unbind('hashchange', this.checkUrl);
clearInterval(this._checkUrlInterval);
History.started = false;
},
// 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.getHash(this.iframe));
}
if (current === this.fragment) return false;
if (this.iframe) this.navigate(current);
this.loadUrl() || this.loadUrl(this.getHash());
},
// 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, or replace the URL state if the
// 'replace' option is passed. You are responsible for properly URL-encoding
// the fragment in advance.
//
// The options object can contain `trigger: true` if you wish to have the
// route callback be fired (not usually desirable), or `replace: true`, if
// you wish to modify the current URL without adding an entry to the history.
navigate: function(fragment, options) {
if (!History.started) return false;
if (!options || options === true) options = {trigger: options};
fragment = this.getFragment(fragment || '');
if (this.fragment === fragment) return;
this.fragment = fragment;
var url = this.root + fragment;
// If pushState is available, we use it to set the fragment as a real URL.
if (this._hasPushState) {
this.history[options.replace ? 'replaceState' : 'pushState']({}, document.title, url);
// If hash changes haven't been explicitly disabled, update the hash
// fragment to store history.
} else if (this._wantsHashChange) {
this._updateHash(this.location, fragment, options.replace);
if (this.iframe && (fragment !== this.getFragment(this.getHash(this.iframe)))) {
// Opening and closing the iframe tricks IE7 and earlier to push a
// history entry on hash-tag change. When replace is true, we don't
// want this.
if(!options.replace) this.iframe.document.open().close();
this._updateHash(this.iframe.location, fragment, options.replace);
}
// If you've told us that you explicitly don't want fallback hashchange-
// based history, then `navigate` becomes a page refresh.
} else {
return this.location.assign(url);
}
if (options.trigger) this.loadUrl(fragment);
},
// Update the hash location, either replacing the current entry, or adding
// a new one to the browser history.
_updateHash: function(location, fragment, replace) {
if (replace) {
var href = location.href.replace(/(javascript:|#).*$/, '');
location.replace(href + '#' + fragment);
} else {
// #1649 - Some browsers require that `hash` contains a leading #.
location.hash = '#' + fragment;
}
}
});
// Create the default Backbone.history.
Backbone.history = new History;
// Backbone.View
// -------------
// Creating a Backbone.View creates its initial element outside of the DOM,
// if an existing element is not provided...
var View = Backbone.View = function(options) {
this.cid = _.uniqueId('view');
this._configure(options || {});
this._ensureElement();
this.initialize.apply(this, arguments);
this.delegateEvents();
};
// Cached regex to split keys for `delegate`.
var delegateEventSplitter = /^(\S+)\s*(.*)$/;
// 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 prefered 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.$el.remove();
this.stopListening();
return this;
},
// For small amounts of DOM Elements, where a full-blown template isn't
// needed, use **make** to manufacture elements, one at a time.
//
// var el = this.make('li', {'class': 'row'}, this.model.escape('title'));
//
make: function(tagName, attributes, content) {
var el = document.createElement(tagName);
if (attributes) Backbone.$(el).attr(attributes);
if (content != null) Backbone.$(el).html(content);
return el;
},
// Change the view's element (`this.el` property), including event
// re-delegation.
setElement: function(element, delegate) {
if (this.$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.undelegateEvents();
for (var key in events) {
var method = events[key];
if (!_.isFunction(method)) method = this[events[key]];
if (!method) throw new Error('Method "' + events[key] + '" does not exist');
var match = key.match(delegateEventSplitter);
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`.
// 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.$el.unbind('.delegateEvents' + this.cid);
},
// Performs the initial configuration of a View with a set of options.
// Keys with special meaning *(model, collection, id, className)*, are
// attached directly to the view.
_configure: function(options) {
if (this.options) options = _.extend({}, _.result(this, 'options'), options);
_.extend(this, _.pick(options, viewOptions));
this.options = options;
},
// Ensure that the View has a DOM element to render into.
// If `this.el` is a string, pass it through `$()`, 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 = _.extend({}, _.result(this, 'attributes'));
if (this.id) attrs.id = _.result(this, 'id');
if (this.className) attrs['class'] = _.result(this, 'className');
this.setElement(this.make(_.result(this, 'tagName'), attrs), false);
} else {
this.setElement(_.result(this, 'el'), false);
}
}
});
// Backbone.sync
// -------------
// Map from CRUD to HTTP for our default `Backbone.sync` implementation.
var methodMap = {
'create': 'POST',
'update': 'PUT',
'patch': 'PATCH',
'delete': 'DELETE',
'read': 'GET'
};
// 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;
options.beforeSend = function(xhr) {
xhr.setRequestHeader('X-HTTP-Method-Override', type);
if (beforeSend) return beforeSend.apply(this, arguments);
};
}
// Don't process data on a non-GET request.
if (params.type !== 'GET' && !options.emulateJSON) {
params.processData = false;
}
var success = options.success;
options.success = function(resp, status, xhr) {
if (success) success(resp, status, xhr);
model.trigger('sync', model, resp, options);
};
var error = options.error;
options.error = function(xhr, status, thrown) {
if (error) error(model, xhr, options);
model.trigger('error', model, xhr, options);
};
// Make the request, allowing the user to override any Ajax options.
var xhr = Backbone.ajax(_.extend(params, options));
model.trigger('request', model, xhr, options);
return xhr;
};
// Set the default implementation of `Backbone.ajax` to proxy through to `$`.
Backbone.ajax = function() {
return Backbone.$.ajax.apply(Backbone.$, arguments);
};
// Helpers
// -------
// 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 extend = function(protoProps, staticProps) {
var parent = this;
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 the parent's constructor.
if (protoProps && _.has(protoProps, 'constructor')) {
child = protoProps.constructor;
} else {
child = function(){ parent.apply(this, arguments); };
}
// Add static properties to the constructor function, if supplied.
_.extend(child, parent, staticProps);
// Set the prototype chain to inherit from `parent`, without calling
// `parent`'s constructor function.
var Surrogate = function(){ this.constructor = child; };
Surrogate.prototype = parent.prototype;
child.prototype = new Surrogate;
// Add prototype properties (instance properties) to the subclass,
// if supplied.
if (protoProps) _.extend(child.prototype, protoProps);
// Set a convenience property in case the parent's prototype is needed
// later.
child.__super__ = parent.prototype;
return child;
};
// Set up inheritance for the model, collection, router, view and history.
Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;
// 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');
};
}).call(this);
labs/architecture-examples/typescript-backbone/js/libs/backbone/backbone.localStorage.js 0 → 100644
View file @ fb246fbf
/**
* Backbone localStorage Adapter
* Version 1.1.0
*
* https://github.com/jeromegn/Backbone.localStorage
*/
(function (root, factory) {
if (typeof define === "function" && define.amd) {
// AMD. Register as an anonymous module.
define(["underscore", "backbone"], function (_, Backbone) {
// Use global variables if the locals are undefined.
return factory(_ || root._, Backbone || root.Backbone);
});
} else {
// RequireJS isn't being used. Assume underscore and backbone are loaded in <script> tags
factory(_, Backbone);
}
}(this, function (_, Backbone) {
// A simple module to replace `Backbone.sync` with *localStorage*-based
// persistence. Models are given GUIDS, and saved into a JSON object. Simple
// as that.
// Hold reference to Underscore.js and Backbone.js in the closure in order
// to make things work even if they are removed from the global namespace
// Generate four random hex digits.
function S4() {
return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
};
// Generate a pseudo-GUID by concatenating random hexadecimal.
function guid() {
return (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() + S4() + S4());
};
// Our Store is represented by a single JS object in *localStorage*. Create it
// with a meaningful name, like the name you'd give a table.
// window.Store is deprectated, use Backbone.LocalStorage instead
Backbone.LocalStorage = window.Store = function (name) {
this.name = name;
var store = this.localStorage().getItem(this.name);
this.records = (store && store.split(",")) || [];
};
_.extend(Backbone.LocalStorage.prototype, {
// Save the current state of the **Store** to *localStorage*.
save: function () {
this.localStorage().setItem(this.name, this.records.join(","));
},
// Add a model, giving it a (hopefully)-unique GUID, if it doesn't already
// have an id of it's own.
create: function (model) {
if (!model.id) {
model.id = guid();
model.set(model.idAttribute, model.id);
}
this.localStorage().setItem(this.name + "-" + model.id, JSON.stringify(model));
this.records.push(model.id.toString());
this.save();
return this.find(model);
},
// Update a model by replacing its copy in `this.data`.
update: function (model) {
this.localStorage().setItem(this.name + "-" + model.id, JSON.stringify(model));
if (!_.include(this.records, model.id.toString()))
this.records.push(model.id.toString()); this.save();
return this.find(model);
},
// Retrieve a model from `this.data` by id.
find: function (model) {
return this.jsonData(this.localStorage().getItem(this.name + "-" + model.id));
},
// Return the array of all models currently in storage.
findAll: function () {
return _(this.records).chain()
.map(function (id) {
return this.jsonData(this.localStorage().getItem(this.name + "-" + id));
}, this)
.compact()
.value();
},
// Delete a model from `this.data`, returning it.
destroy: function (model) {
if (model.isNew())
return false
this.localStorage().removeItem(this.name + "-" + model.id);
this.records = _.reject(this.records, function (id) {
return id === model.id.toString();
});
this.save();
return model;
},
localStorage: function () {
return localStorage;
},
// fix for "illegal access" error on Android when JSON.parse is passed null
jsonData: function (data) {
return data && JSON.parse(data);
}
});
// localSync delegate to the model or collection's
// *localStorage* property, which should be an instance of `Store`.
// window.Store.sync and Backbone.localSync is deprectated, use Backbone.LocalStorage.sync instead
Backbone.LocalStorage.sync = window.Store.sync = Backbone.localSync = function (method, model, options) {
var store = model.localStorage || model.collection.localStorage;
var resp, errorMessage, syncDfd = $.Deferred && $.Deferred(); //If $ is having Deferred - use it.
try {
switch (method) {
case "read":
resp = model.id != undefined ? store.find(model) : store.findAll();
break;
case "create":
resp = store.create(model);
break;
case "update":
resp = store.update(model);
break;
case "delete":
resp = store.destroy(model);
break;
}
} catch (error) {
if (error.code === DOMException.QUOTA_EXCEEDED_ERR && window.localStorage.length === 0)
errorMessage = "Private browsing is unsupported";
else
errorMessage = error.message;
}
if (resp) {
model.trigger("sync", model, resp, options);
if (options && options.success)
if (Backbone.VERSION === "0.9.10") {
options.success(model, resp, options);
} else {
options.success(resp);
}
if (syncDfd)
syncDfd.resolve(resp);
} else {
errorMessage = errorMessage ? errorMessage
: "Record Not Found";
model.trigger("error", model, errorMessage, options);
if (options && options.error)
if (Backbone.VERSION === "0.9.10") {
options.error(model, errorMessage, options);
} else {
options.error(errorMessage);
}
if (syncDfd)
syncDfd.reject(errorMessage);
}
// add compatibility with $.ajax
// always execute callback for success and error
if (options && options.complete) options.complete(resp);
return syncDfd && syncDfd.promise();
};
Backbone.ajaxSync = Backbone.sync;
Backbone.getSyncMethod = function (model) {
if (model.localStorage || (model.collection && model.collection.localStorage)) {
return Backbone.localSync;
}
return Backbone.ajaxSync;
};
// Override 'Backbone.sync' to default to localSync,
// the original 'Backbone.sync' is still available in 'Backbone.ajaxSync'
Backbone.sync = function (method, model, options) {
return Backbone.getSyncMethod(model).apply(this, [method, model, options]);
};
return Backbone.LocalStorage;
}));
\ No newline at end of file
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