Commit 5848399f authored by addyosmani's avatar addyosmani

Updating to rewritten Backbone app.

parents a053160d 1ff6f043
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
margin: 0;
padding: 0;
border: 0;
outline: 0;
font-weight: inherit;
font-style: inherit;
font-size: 100%;
font-family: inherit;
vertical-align: baseline;
}
body {
line-height: 1;
color: black;
background: white;
}
ol, ul {
list-style: none;
}
a img {
border: none;
}
html {
background: #eeeeee;
}
body {
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
font-size: 14px;
line-height: 1.4em;
background: #eeeeee;
color: #333333;
}
#todoapp {
width: 480px;
margin: 0 auto 40px;
background: white;
padding: 20px;
-moz-box-shadow: rgba(0, 0, 0, 0.2) 0 5px 6px 0;
-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 5px 6px 0;
-o-box-shadow: rgba(0, 0, 0, 0.2) 0 5px 6px 0;
box-shadow: rgba(0, 0, 0, 0.2) 0 5px 6px 0;
}
#todoapp h1 {
font-size: 36px;
font-weight: bold;
text-align: center;
padding: 20px 0 30px 0;
line-height: 1;
}
#create-todo {
position: relative;
}
#create-todo input {
width: 466px;
font-size: 24px;
font-family: inherit;
line-height: 1.4em;
border: 0;
outline: none;
padding: 6px;
border: 1px solid #999999;
-moz-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-o-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
}
#create-todo span {
position: absolute;
z-index: 999;
width: 170px;
left: 50%;
margin-left: -85px;
}
#todo-list {
margin-top: 10px;
}
#todo-list li {
padding: 12px 20px 11px 0;
position: relative;
font-size: 24px;
line-height: 1.1em;
border-bottom: 1px solid #cccccc;
}
#todo-list li:after {
content: "\0020";
display: block;
height: 0;
clear: both;
overflow: hidden;
visibility: hidden;
}
#todo-list li.editing {
padding: 0;
border-bottom: 0;
}
#todo-list .editing .display,
#todo-list .edit {
display: none;
}
#todo-list .editing .edit {
display: block;
}
#todo-list .editing input {
width: 444px;
font-size: 24px;
font-family: inherit;
margin: 0;
line-height: 1.6em;
border: 0;
outline: none;
padding: 10px 7px 0px 27px;
border: 1px solid #999999;
-moz-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-o-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
}
#todo-list .check {
position: relative;
top: 9px;
margin: 0 10px 0 7px;
float: left;
}
#todo-list .done .todo-content {
text-decoration: line-through;
color: #777777;
}
#todo-list .todo-destroy {
position: absolute;
right: 5px;
top: 14px;
display: none;
cursor: pointer;
width: 20px;
height: 20px;
background: url(destroy.png) no-repeat 0 0;
}
#todo-list li:hover .todo-destroy {
display: block;
}
#todo-list .todo-destroy:hover {
background-position: 0 -20px;
}
#todo-stats {
*zoom: 1;
margin-top: 10px;
color: #777777;
}
#todo-stats:after {
content: "\0020";
display: block;
height: 0;
clear: both;
overflow: hidden;
visibility: hidden;
}
#todo-stats .todo-count {
float: left;
}
#todo-stats .todo-count .number {
font-weight: bold;
color: #333333;
}
#todo-stats .todo-clear {
float: right;
}
#todo-stats .todo-clear a {
color: #777777;
font-size: 12px;
}
#todo-stats .todo-clear a:visited {
color: #777777;
}
#todo-stats .todo-clear a:hover {
color: #336699;
}
#instructions {
width: 520px;
margin: 10px auto;
color: #777777;
text-shadow: rgba(255, 255, 255, 0.8) 0 1px 0;
text-align: center;
}
#instructions a {
color: #336699;
}
#credits {
width: 520px;
margin: 30px auto;
color: #999;
text-shadow: rgba(255, 255, 255, 0.8) 0 1px 0;
text-align: center;
}
#credits a {
color: #888;
}
/*
* François 'cahnory' Germain
*/
.ui-tooltip, .ui-tooltip-top, .ui-tooltip-right, .ui-tooltip-bottom, .ui-tooltip-left {
color:#ffffff;
cursor:normal;
display:-moz-inline-stack;
display:inline-block;
font-size:12px;
font-family:arial;
padding:.5em 1em;
position:relative;
text-align:center;
text-shadow:0 -1px 1px #111111;
-webkit-border-top-left-radius:4px ;
-webkit-border-top-right-radius:4px ;
-webkit-border-bottom-right-radius:4px ;
-webkit-border-bottom-left-radius:4px ;
-khtml-border-top-left-radius:4px ;
-khtml-border-top-right-radius:4px ;
-khtml-border-bottom-right-radius:4px ;
-khtml-border-bottom-left-radius:4px ;
-moz-border-radius-topleft:4px ;
-moz-border-radius-topright:4px ;
-moz-border-radius-bottomright:4px ;
-moz-border-radius-bottomleft:4px ;
border-top-left-radius:4px ;
border-top-right-radius:4px ;
border-bottom-right-radius:4px ;
border-bottom-left-radius:4px ;
-o-box-shadow:0 1px 2px #000000, inset 0 0 0 1px #222222, inset 0 2px #666666, inset 0 -2px 2px #444444;
-moz-box-shadow:0 1px 2px #000000, inset 0 0 0 1px #222222, inset 0 2px #666666, inset 0 -2px 2px #444444;
-khtml-box-shadow:0 1px 2px #000000, inset 0 0 0 1px #222222, inset 0 2px #666666, inset 0 -2px 2px #444444;
-webkit-box-shadow:0 1px 2px #000000, inset 0 0 0 1px #222222, inset 0 2px #666666, inset 0 -2px 2px #444444;
box-shadow:0 1px 2px #000000, inset 0 0 0 1px #222222, inset 0 2px #666666, inset 0 -2px 2px #444444;
background-color:#3b3b3b;
background-image:-moz-linear-gradient(top,#555555,#222222);
background-image:-webkit-gradient(linear,left top,left bottom,color-stop(0,#555555),color-stop(1,#222222));
filter:progid:DXImageTransform.Microsoft.gradient(startColorStr=#555555,EndColorStr=#222222);
-ms-filter:progid:DXImageTransform.Microsoft.gradient(startColorStr=#555555,EndColorStr=#222222);
}
.ui-tooltip:after, .ui-tooltip-top:after, .ui-tooltip-right:after, .ui-tooltip-bottom:after, .ui-tooltip-left:after {
content:"\25B8";
display:block;
font-size:2em;
height:0;
line-height:0;
position:absolute;
}
.ui-tooltip:after, .ui-tooltip-bottom:after {
color:#2a2a2a;
bottom:0;
left:1px;
text-align:center;
text-shadow:1px 0 2px #000000;
-o-transform:rotate(90deg);
-moz-transform:rotate(90deg);
-khtml-transform:rotate(90deg);
-webkit-transform:rotate(90deg);
width:100%;
}
.ui-tooltip-top:after {
bottom:auto;
color:#4f4f4f;
left:-2px;
top:0;
text-align:center;
text-shadow:none;
-o-transform:rotate(-90deg);
-moz-transform:rotate(-90deg);
-khtml-transform:rotate(-90deg);
-webkit-transform:rotate(-90deg);
width:100%;
}
.ui-tooltip-right:after {
color:#222222;
right:-0.375em;
top:50%;
margin-top:-.05em;
text-shadow:0 1px 2px #000000;
-o-transform:rotate(0);
-moz-transform:rotate(0);
-khtml-transform:rotate(0);
-webkit-transform:rotate(0);
}
.ui-tooltip-left:after {
color:#222222;
left:-0.375em;
top:50%;
margin-top:.1em;
text-shadow:0 -1px 2px #000000;
-o-transform:rotate(180deg);
-moz-transform:rotate(180deg);
-khtml-transform:rotate(180deg);
-webkit-transform:rotate(180deg);
}
/*the following changes require some cleanup and integration with the above.**/
/* line 9 */
/* line 17 */
#todoapp {
background: white;
-moz-box-shadow: rgba(0, 0, 0, 0.2) 0 2px 6px 0;
-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 2px 6px 0;
-o-box-shadow: rgba(0, 0, 0, 0.2) 0 2px 6px 0;
box-shadow: rgba(0, 0, 0, 0.2) 0 2px 6px 0;
-moz-border-radius-bottomleft: 5px;
-webkit-border-bottom-left-radius: 5px;
-o-border-bottom-left-radius: 5px;
-ms-border-bottom-left-radius: 5px;
-khtml-border-bottom-left-radius: 5px;
border-bottom-left-radius: 5px;
-moz-border-radius-bottomright: 5px;
-webkit-border-bottom-right-radius: 5px;
-o-border-bottom-right-radius: 5px;
-ms-border-bottom-right-radius: 5px;
-khtml-border-bottom-right-radius: 5px;
border-bottom-right-radius: 5px;
}
/* line 24 */
/* line 32 */
#todoapp .content #create-todo {
position: relative;
}
/* line 34 */
#todoapp .content #create-todo input {
font-size: 24px;
font-family: inherit;
line-height: 1.4em;
border: 0;
outline: none;
padding: 6px;
border: 1px solid #999999;
-moz-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-o-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
}
/* line 47 */
#todoapp .content #create-todo span {
position: absolute;
z-index: 999;
width: 170px;
left: 50%;
margin-left: -85px;
}
/* line 55 */
#todoapp .content ul#todo-list {
margin-top: 10px;
}
/* line 57 */
#todoapp .content ul#todo-list li {
padding: 15px 20px 15px 0;
position: relative;
font-size: 24px;
border-bottom: 1px solid #cccccc;
*zoom: 1;
cursor: move;
}
/* line 22, /opt/ree/lib/ruby/gems/1.8/gems/compass-0.10.5/frameworks/compass/stylesheets/compass/utilities/general/_clearfix.scss */
#todoapp .content ul#todo-list li:after {
content: "\0020";
display: block;
height: 0;
clear: both;
overflow: hidden;
visibility: hidden;
}
/* line 64 */
#todoapp .content ul#todo-list li.editing {
padding: 0;
border-bottom: 0;
}
/* line 67 */
#todoapp .content ul#todo-list li.editing .todo-input {
display: block;
width: 466px;
font-size: 24px;
font-family: inherit;
line-height: 1.4em;
border: 0;
outline: none;
padding: 6px;
border: 1px solid #999999;
-moz-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
-o-box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
box-shadow: rgba(0, 0, 0, 0.2) 0 1px 2px 0 inset;
}
/* line 79 */
#todoapp .content ul#todo-list li.editing .todo-content {
display: none;
}
/* line 81 */
#todoapp .content ul#todo-list li.editing .todo-check {
display: none;
}
/* line 83 */
#todoapp .content ul#todo-list li.editing .todo-destroy {
display: none !important;
}
/* line 85 */
#todoapp .content ul#todo-list li .todo-input {
display: none;
}
/* line 87 */
#todoapp .content ul#todo-list li .todo-check {
position: relative;
top: 6px;
margin: 0 10px 0 7px;
float: left;
}
/* line 93 */
#todoapp .content ul#todo-list li.done .todo-content {
text-decoration: line-through;
color: #777777;
}
/* line 96 */
#todoapp .content ul#todo-list li .todo-destroy {
position: absolute;
right: 0px;
top: 16px;
display: none;
cursor: pointer;
width: 20px;
height: 20px;
}
/* line 106 */
#todoapp .content ul#todo-list li:hover .todo-destroy {
display: block;
}
/* line 109 */
#todoapp #todo-stats {
*zoom: 1;
margin-top: 10px;
color: #555555;
-moz-border-radius-bottomleft: 5px;
-webkit-border-bottom-left-radius: 5px;
-o-border-bottom-left-radius: 5px;
-ms-border-bottom-left-radius: 5px;
-khtml-border-bottom-left-radius: 5px;
border-bottom-left-radius: 5px;
-moz-border-radius-bottomright: 5px;
-webkit-border-bottom-right-radius: 5px;
-o-border-bottom-right-radius: 5px;
-ms-border-bottom-right-radius: 5px;
-khtml-border-bottom-right-radius: 5px;
border-bottom-right-radius: 5px;
background: #f4fce8;
border-top: 1px solid #ededed;
padding: 0 20px;
line-height: 36px;
}
/* line 22, /opt/ree/lib/ruby/gems/1.8/gems/compass-0.10.5/frameworks/compass/stylesheets/compass/utilities/general/_clearfix.scss */
#todoapp #todo-stats:after {
content: "\0020";
display: block;
height: 0;
clear: both;
overflow: hidden;
visibility: hidden;
}
/* line 118 */
#todoapp #todo-stats .todo-count {
float: left;
}
/* line 120 */
#todoapp #todo-stats .todo-count .number {
font-weight: bold;
color: #555555;
}
/* line 123 */
#todoapp #todo-stats .todo-clear {
float: right;
}
/* line 125 */
#todoapp #todo-stats .todo-clear a {
display: block;
line-height: 20px;
text-decoration: none;
-moz-border-radius: 12px;
-webkit-border-radius: 12px;
-o-border-radius: 12px;
-ms-border-radius: 12px;
-khtml-border-radius: 12px;
border-radius: 12px;
background: rgba(0, 0, 0, 0.1);
color: #555555;
font-size: 11px;
margin-top: 8px;
padding: 0 10px 1px;
-moz-box-shadow: rgba(0, 0, 0, 0.2) 0 -1px 0 0;
-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 -1px 0 0;
-o-box-shadow: rgba(0, 0, 0, 0.2) 0 -1px 0 0;
box-shadow: rgba(0, 0, 0, 0.2) 0 -1px 0 0;
}
/* line 136 */
#todoapp #todo-stats .todo-clear a:hover, #todoapp #todo-stats .todo-clear a:focus {
background: rgba(0, 0, 0, 0.15);
-moz-box-shadow: rgba(0, 0, 0, 0.3) 0 -1px 0 0;
-webkit-box-shadow: rgba(0, 0, 0, 0.3) 0 -1px 0 0;
-o-box-shadow: rgba(0, 0, 0, 0.3) 0 -1px 0 0;
box-shadow: rgba(0, 0, 0, 0.3) 0 -1px 0 0;
}
/* line 139 */
#todoapp #todo-stats .todo-clear a:active {
position: relative;
top: 1px;
}
<!DOCTYPE html> <!doctype html>
<html> <html lang="en">
<head>
<head> <meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Backbone.js</title> <title>Backbone.js</title>
<link href="css/todos.css" media="all" rel="stylesheet" type="text/css"/> <link rel="stylesheet" href="../../assets/base.css"/>
<script src="js/json2.js"></script> </head>
<script src="js/jquery-1.6.4.min.js"></script> <body>
<script src="js/underscore-1.1.6.js"></script>
<script src="js/backbone.js"></script>
<script src="js/backbone-localstorage.js"></script>
<script src="js/todos.js"></script>
</head>
<body>
<!-- Todo App Interface -->
<div id="todoapp"> <section id="todoapp">
<header id="header">
<div class="title">
<h1>Todos</h1> <h1>Todos</h1>
</div> <input id="new-todo" placeholder="What needs to be done?" autofocus>
</header>
<div class="content"> <section id="main">
<input id="toggle-all" type="checkbox">
<div id="create-todo"> <label for="toggle-all">Mark all as complete</label>
<input id="new-todo" placeholder="What needs to be done?" type="text" />
<span class="ui-tooltip-top" style="display:none;">Press Enter to save this task</span>
</div>
<div id="todos">
<input class="check mark-all-done" type="checkbox"/>
<label for="check-all">Mark all as complete</label>
<ul id="todo-list"></ul> <ul id="todo-list"></ul>
</div> </section>
<footer id="footer"></div>
<div id="todo-stats"></div> </section>
<div id="info">
<p>Double-click to edit a todo</p>
<p>Created by <a href="http://addyosmani.github.com/todomvc/">Addy Osmani</a></p>
<p>Part of <a href="http://todomvc.com">TodoMVC</a></p>
</footer>
</div>
</div>
<div id="credits">
Created by
<br />
<a href="http://jgn.me/">J&eacute;r&ocirc;me Gravel-Niquet</a>. <br />Cleanup, edits: <a href="http://addyosmani.com">Addy Osmani</a>.
</div>
<!-- Templates -->
<script type="text/template" id="item-template"> <script type="text/template" id="item-template">
<div class="todo <%= done ? 'done' : '' %>"> <div class="view">
<div class="display"> <input class="toggle" type="checkbox" <%= completed ? 'checked="checked"' : '' %> />
<input class="check" type="checkbox" <%= done ? 'checked="checked"' : '' %> /> <label><%= title %></label>
<label class="todo-content"><%= content %></label> <button class="destroy"></button>
<span class="todo-destroy"></span>
</div>
<div class="edit">
<input class="todo-input" type="text" value="<%= content %>" />
</div>
</div> </div>
<input class="edit" type="text" value="<%= title %>" />
</script> </script>
<script type="text/template" id="stats-template"> <script type="text/template" id="stats-template">
<% if (total) { %> <span id="todo-count"><strong><%= remaining %></strong> <%= remaining == 1 ? 'item' : 'items' %> left</span>
<span class="todo-count"> <ul id="filters">
<span class="number"><%= remaining %></span> <li>
<span class="word"><%= remaining == 1 ? 'item' : 'items' %></span> left. <a class="selected" href="#/">All</a>
</span> </li>
<% } %> <li>
<% if (done) { %> <a href="#/active">Active</a>
<span class="todo-clear"> </li>
<a href="#"> <li>
Clear <span class="number-done"><%= done %></span> <a href="#/completed">Completed</a>
completed <span class="word-done"><%= done == 1 ? 'item' : 'items' %></span> </li>
</a> </ul>
</span> <% if (completed) { %>
<button id="clear-completed">Clear completed (<%= completed %>)</button>
<% } %> <% } %>
</script> </script>
</body> <script src="../../assets/jquery.min.js"></script>
<script src="js/lib/underscore-min.js"></script>
<script src="js/lib/backbone-min.js"></script>
<script src="js/lib/backbone-localstorage.js"></script>
<script src="js/init.js"></script>
<script src="js/models/todo.js"></script>
<script src="js/collections/todos.js"></script>
<script src="js/views/todoView.js"></script>
<script src="js/views/appView.js"></script>
<script src="js/routers/router.js"></script>
<script src="js/app.js"></script>
</body>
</html> </html>
\ No newline at end of file
$(function(){
// Kick things off by creating the **App**.
var App = new window.app.AppView;
});
\ No newline at end of file
// Backbone.js 0.5.0-pre
// (c) 2010 Jeremy Ashkenas, DocumentCloud Inc.
// Backbone may be freely distributed under the MIT license.
// For all details and documentation:
// http://documentcloud.github.com/backbone
(function(){
// Initial Setup
// -------------
// Save a reference to the global object.
var root = this;
// Save the previous value of the `Backbone` variable.
var previousBackbone = root.Backbone;
// The top-level namespace. All public Backbone classes and modules will
// be attached to this. Exported for both CommonJS and the browser.
var Backbone;
if (typeof exports !== 'undefined') {
Backbone = exports;
} else {
Backbone = root.Backbone = {};
}
// Current version of the library. Keep in sync with `package.json`.
Backbone.VERSION = '0.5.0-pre';
// Require Underscore, if we're on the server, and it's not already present.
var _ = root._;
if (!_ && (typeof require !== 'undefined')) _ = require('underscore')._;
// For Backbone's purposes, jQuery or Zepto owns the `$` variable.
var $ = root.jQuery || root.Zepto;
// 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 use support legacy HTTP servers. Setting this option will
// fake `"PUT"` and `"DELETE"` requests via the `_method` parameter and set a
// `X-Http-Method-Override` header.
Backbone.emulateHTTP = false;
// Turn on `emulateJSON` to support legacy servers that can't deal with direct
// `application/json` requests ... will encode the body as
// `application/x-www-form-urlencoded` instead and will send the model in a
// form param named `model`.
Backbone.emulateJSON = false;
// Backbone.Events
// -----------------
// A module that can be mixed in to *any object* in order to provide it with
// custom events. You may `bind` or `unbind` a callback function to an event;
// `trigger`-ing an event fires all callbacks in succession.
//
// var object = {};
// _.extend(object, Backbone.Events);
// object.bind('expand', function(){ alert('expanded'); });
// object.trigger('expand');
//
Backbone.Events = {
// Bind an event, specified by a string name, `ev`, to a `callback` function.
// Passing `"all"` will bind the callback to all events fired.
bind : function(ev, callback) {
var calls = this._callbacks || (this._callbacks = {});
var list = calls[ev] || (calls[ev] = []);
list.push(callback);
return this;
},
// Remove one or many callbacks. If `callback` is null, removes all
// callbacks for the event. If `ev` is null, removes all bound callbacks
// for all events.
unbind : function(ev, callback) {
var calls;
if (!ev) {
this._callbacks = {};
} else if (calls = this._callbacks) {
if (!callback) {
calls[ev] = [];
} else {
var list = calls[ev];
if (!list) return this;
for (var i = 0, l = list.length; i < l; i++) {
if (callback === list[i]) {
list[i] = null;
break;
}
}
}
}
return this;
},
// Trigger an event, firing all bound callbacks. Callbacks are passed the
// same arguments as `trigger` is, apart from the event name.
// Listening for `"all"` passes the true event name as the first argument.
trigger : function(eventName) {
var list, calls, ev, callback, args;
var both = 2;
if (!(calls = this._callbacks)) return this;
while (both--) {
ev = both ? eventName : 'all';
if (list = calls[ev]) {
for (var i = 0, l = list.length; i < l; i++) {
if (!(callback = list[i])) {
list.splice(i, 1); i--; l--;
} else {
args = both ? Array.prototype.slice.call(arguments, 1) : arguments;
callback.apply(this, args);
}
}
}
}
return this;
}
};
// Backbone.Model
// --------------
// Create a new model, with defined attributes. A client id (`cid`)
// is automatically generated and assigned for you.
Backbone.Model = function(attributes, options) {
var defaults;
attributes || (attributes = {});
if (defaults = this.defaults) {
if (_.isFunction(defaults)) defaults = defaults();
attributes = _.extend({}, defaults, attributes);
}
this.attributes = {};
this._escapedAttributes = {};
this.cid = _.uniqueId('c');
this.set(attributes, {silent : true});
this._changed = false;
this._previousAttributes = _.clone(this.attributes);
if (options && options.collection) this.collection = options.collection;
this.initialize(attributes, options);
};
// Attach all inheritable methods to the Model prototype.
_.extend(Backbone.Model.prototype, Backbone.Events, {
// A snapshot of the model's previous attributes, taken immediately
// after the last `"change"` event was fired.
_previousAttributes : null,
// Has the item been changed since the last `"change"` event?
_changed : false,
// The default name for the JSON `id` attribute is `"id"`. MongoDB and
// CouchDB users may want to set this to `"_id"`.
idAttribute : 'id',
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize : function(){},
// Return a copy of the model's `attributes` object.
toJSON : function() {
return _.clone(this.attributes);
},
// Get the value of an attribute.
get : function(attr) {
return this.attributes[attr];
},
// Get the HTML-escaped value of an attribute.
escape : function(attr) {
var html;
if (html = this._escapedAttributes[attr]) return html;
var val = this.attributes[attr];
return this._escapedAttributes[attr] = escapeHTML(val == null ? '' : '' + val);
},
// Returns `true` if the attribute contains a value that is not null
// or undefined.
has : function(attr) {
return this.attributes[attr] != null;
},
// Set a hash of model attributes on the object, firing `"change"` unless you
// choose to silence it.
set : function(attrs, options) {
// Extract attributes and options.
options || (options = {});
if (!attrs) return this;
if (attrs.attributes) attrs = attrs.attributes;
var now = this.attributes, escaped = this._escapedAttributes;
// Run validation.
if (!options.silent && this.validate && !this._performValidation(attrs, options)) return false;
// Check for changes of `id`.
if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
// We're about to start triggering change events.
var alreadyChanging = this._changing;
this._changing = true;
// Update attributes.
for (var attr in attrs) {
var val = attrs[attr];
if (!_.isEqual(now[attr], val)) {
now[attr] = val;
delete escaped[attr];
this._changed = true;
if (!options.silent) this.trigger('change:' + attr, this, val, options);
}
}
// Fire the `"change"` event, if the model has been changed.
if (!alreadyChanging && !options.silent && this._changed) this.change(options);
this._changing = false;
return this;
},
// Remove an attribute from the model, firing `"change"` unless you choose
// to silence it. `unset` is a noop if the attribute doesn't exist.
unset : function(attr, options) {
if (!(attr in this.attributes)) return this;
options || (options = {});
var value = this.attributes[attr];
// Run validation.
var validObj = {};
validObj[attr] = void 0;
if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false;
// Remove the attribute.
delete this.attributes[attr];
delete this._escapedAttributes[attr];
if (attr == this.idAttribute) delete this.id;
this._changed = true;
if (!options.silent) {
this.trigger('change:' + attr, this, void 0, options);
this.change(options);
}
return this;
},
// Clear all attributes on the model, firing `"change"` unless you choose
// to silence it.
clear : function(options) {
options || (options = {});
var old = this.attributes;
// Run validation.
var validObj = {};
for (var attr in old) validObj[attr] = void 0;
if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false;
this.attributes = {};
this._escapedAttributes = {};
this._changed = true;
if (!options.silent) {
for (var attr in old) {
this.trigger('change:' + attr, this, void 0, options);
}
this.change(options);
}
return this;
},
// Fetch the model from the server. If the server's representation of the
// model differs from its current attributes, they will be overriden,
// triggering a `"change"` event.
fetch : function(options) {
options || (options = {});
var model = this;
var success = options.success;
options.success = function(resp, status, xhr) {
if (!model.set(model.parse(resp, xhr), options)) return false;
if (success) success(model, resp);
};
options.error = wrapError(options.error, model, options);
return (this.sync || Backbone.sync).call(this, 'read', this, options);
},
// Set a hash of model attributes, and sync the model to the server.
// If the server returns an attributes hash that differs, the model's
// state will be `set` again.
save : function(attrs, options) {
options || (options = {});
if (attrs && !this.set(attrs, options)) return false;
var model = this;
var success = options.success;
options.success = function(resp, status, xhr) {
if (!model.set(model.parse(resp, xhr), options)) return false;
if (success) success(model, resp, xhr);
};
options.error = wrapError(options.error, model, options);
var method = this.isNew() ? 'create' : 'update';
return (this.sync || Backbone.sync).call(this, method, this, options);
},
// Destroy this model on the server if it was already persisted. Upon success, the model is removed
// from its collection, if it has one.
destroy : function(options) {
options || (options = {});
if (this.isNew()) return this.trigger('destroy', this, this.collection, options);
var model = this;
var success = options.success;
options.success = function(resp) {
model.trigger('destroy', model, model.collection, options);
if (success) success(model, resp);
};
options.error = wrapError(options.error, model, options);
return (this.sync || Backbone.sync).call(this, 'delete', this, options);
},
// Default URL for the model's representation on the server -- if you're
// using Backbone's restful methods, override this to change the endpoint
// that will be called.
url : function() {
var base = getUrl(this.collection) || this.urlRoot || urlError();
if (this.isNew()) return base;
return base + (base.charAt(base.length - 1) == '/' ? '' : '/') + encodeURIComponent(this.id);
},
// **parse** converts a response into the hash of attributes to be `set` on
// the model. The default implementation is just to pass the response along.
parse : function(resp, xhr) {
return resp;
},
// Create a new model with identical attributes to this one.
clone : function() {
return new this.constructor(this);
},
// A model is new if it has never been saved to the server, and has a negative
// ID.
isNew : function() {
return !this.id;
},
// Call this method to manually fire a `change` event for this model.
// Calling this will cause all objects observing the model to update.
change : function(options) {
this.trigger('change', this, options);
this._previousAttributes = _.clone(this.attributes);
this._changed = false;
},
// Determine if the model has changed since the last `"change"` event.
// If you specify an attribute name, determine if that attribute has changed.
hasChanged : function(attr) {
if (attr) return this._previousAttributes[attr] != this.attributes[attr];
return this._changed;
},
// Return an object containing all the attributes that have changed, or false
// if there are no changed attributes. Useful for determining what parts of a
// view need to be updated and/or what attributes need to be persisted to
// the server.
changedAttributes : function(now) {
now || (now = this.attributes);
var old = this._previousAttributes;
var changed = false;
for (var attr in now) {
if (!_.isEqual(old[attr], now[attr])) {
changed = changed || {};
changed[attr] = now[attr];
}
}
return changed;
},
// Get the previous value of an attribute, recorded at the time the last
// `"change"` event was fired.
previous : function(attr) {
if (!attr || !this._previousAttributes) return null;
return this._previousAttributes[attr];
},
// Get all of the attributes of the model at the time of the previous
// `"change"` event.
previousAttributes : function() {
return _.clone(this._previousAttributes);
},
// Run validation against a set of incoming attributes, returning `true`
// if all is well. If a specific `error` callback has been passed,
// call that instead of firing the general `"error"` event.
_performValidation : function(attrs, options) {
var error = this.validate(attrs);
if (error) {
if (options.error) {
options.error(this, error, options);
} else {
this.trigger('error', this, error, options);
}
return false;
}
return true;
}
});
// Backbone.Collection
// -------------------
// Provides a standard collection class for our sets of models, ordered
// or unordered. If a `comparator` is specified, the Collection will maintain
// its models in sort order, as they're added and removed.
Backbone.Collection = function(models, options) {
options || (options = {});
if (options.comparator) this.comparator = options.comparator;
_.bindAll(this, '_onModelEvent', '_removeReference');
this._reset();
if (models) this.reset(models, {silent: true});
this.initialize(models, options);
};
// Define the Collection's inheritable methods.
_.extend(Backbone.Collection.prototype, Backbone.Events, {
// The default model for a collection is just a **Backbone.Model**.
// This should be overridden in most cases.
model : Backbone.Model,
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize : function(){},
// The JSON representation of a Collection is an array of the
// models' attributes.
toJSON : function() {
return this.map(function(model){ return model.toJSON(); });
},
// Add a model, or list of models to the set. Pass **silent** to avoid
// firing the `added` event for every new model.
add : function(models, options) {
if (_.isArray(models)) {
for (var i = 0, l = models.length; i < l; i++) {
this._add(models[i], options);
}
} else {
this._add(models, options);
}
return this;
},
// Remove a model, or a list of models from the set. Pass silent to avoid
// firing the `removed` event for every model removed.
remove : function(models, options) {
if (_.isArray(models)) {
for (var i = 0, l = models.length; i < l; i++) {
this._remove(models[i], options);
}
} else {
this._remove(models, options);
}
return this;
},
// Get a model from the set by id.
get : function(id) {
if (id == null) return null;
return this._byId[id.id != null ? id.id : id];
},
// Get a model from the set by client id.
getByCid : function(cid) {
return cid && this._byCid[cid.cid || cid];
},
// Get the model at the given index.
at: function(index) {
return this.models[index];
},
// Force the collection to re-sort itself. You don't need to call this under normal
// circumstances, as the set will maintain sort order as each item is added.
sort : function(options) {
options || (options = {});
if (!this.comparator) throw new Error('Cannot sort a set without a comparator');
this.models = this.sortBy(this.comparator);
if (!options.silent) this.trigger('reset', this, options);
return this;
},
// Pluck an attribute from each model in the collection.
pluck : function(attr) {
return _.map(this.models, function(model){ return model.get(attr); });
},
// When you have more items than you want to add or remove individually,
// you can reset the entire set with a new list of models, without firing
// any `added` or `removed` events. Fires `reset` when finished.
reset : function(models, options) {
models || (models = []);
options || (options = {});
this.each(this._removeReference);
this._reset();
this.add(models, {silent: true});
if (!options.silent) this.trigger('reset', this, options);
return this;
},
// Fetch the default set of models for this collection, resetting the
// collection when they arrive. If `add: true` is passed, appends the
// models to the collection instead of resetting.
fetch : function(options) {
options || (options = {});
var collection = this;
var success = options.success;
options.success = function(resp, status, xhr) {
collection[options.add ? 'add' : 'reset'](collection.parse(resp, xhr), options);
if (success) success(collection, resp);
};
options.error = wrapError(options.error, collection, options);
return (this.sync || Backbone.sync).call(this, 'read', this, options);
},
// Create a new instance of a model in this collection. After the model
// has been created on the server, it will be added to the collection.
// Returns the model, or 'false' if validation on a new model fails.
create : function(model, options) {
var coll = this;
options || (options = {});
model = this._prepareModel(model, options);
if (!model) return false;
var success = options.success;
options.success = function(nextModel, resp, xhr) {
coll.add(nextModel, options);
if (success) success(nextModel, resp, xhr);
};
model.save(null, options);
return model;
},
// **parse** converts a response into a list of models to be added to the
// collection. The default implementation is just to pass it through.
parse : function(resp, xhr) {
return resp;
},
// Proxy to _'s chain. Can't be proxied the same way the rest of the
// underscore methods are proxied because it relies on the underscore
// constructor.
chain: function () {
return _(this.models).chain();
},
// Reset all internal state. Called when the collection is refreshed.
_reset : function(options) {
this.length = 0;
this.models = [];
this._byId = {};
this._byCid = {};
},
// Prepare a model to be added to this collection
_prepareModel: function(model, options) {
if (!(model instanceof Backbone.Model)) {
var attrs = model;
model = new this.model(null, {collection: this});
if (!model.set(attrs, options)) model = false;
} else if (!model.collection) {
model.collection = this;
}
return model;
},
// Internal implementation of adding a single model to the set, updating
// hash indexes for `id` and `cid` lookups.
// Returns the model, or 'false' if validation on a new model fails.
_add : function(model, options) {
options || (options = {});
model = this._prepareModel(model, options);
if (!model) return false;
var already = this.getByCid(model);
if (already) throw new Error(["Can't add the same model to a set twice", already.id]);
this._byId[model.id] = model;
this._byCid[model.cid] = model;
var index = options.at != null ? options.at :
this.comparator ? this.sortedIndex(model, this.comparator) :
this.length;
this.models.splice(index, 0, model);
model.bind('all', this._onModelEvent);
this.length++;
if (!options.silent) model.trigger('add', model, this, options);
return model;
},
// Internal implementation of removing a single model from the set, updating
// hash indexes for `id` and `cid` lookups.
_remove : function(model, options) {
options || (options = {});
model = this.getByCid(model) || this.get(model);
if (!model) return null;
delete this._byId[model.id];
delete this._byCid[model.cid];
this.models.splice(this.indexOf(model), 1);
this.length--;
if (!options.silent) model.trigger('remove', model, this, options);
this._removeReference(model);
return model;
},
// Internal method to remove a model's ties to a collection.
_removeReference : function(model) {
if (this == model.collection) {
delete model.collection;
}
model.unbind('all', this._onModelEvent);
},
// Internal method called every time a model in the set fires an event.
// Sets need to update their indexes when models change ids. All other
// events simply proxy through. "add" and "remove" events that originate
// in other collections are ignored.
_onModelEvent : function(ev, model, collection, options) {
if ((ev == 'add' || ev == 'remove') && collection != this) return;
if (ev == 'destroy') {
this._remove(model, options);
}
if (model && ev === 'change:' + model.idAttribute) {
delete this._byId[model.previous(model.idAttribute)];
this._byId[model.id] = model;
}
this.trigger.apply(this, arguments);
}
});
// Underscore methods that we want to implement on the Collection.
var methods = ['forEach', 'each', 'map', 'reduce', 'reduceRight', 'find', 'detect',
'filter', 'select', 'reject', 'every', 'all', 'some', 'any', 'include',
'invoke', 'max', 'min', 'sortBy', 'sortedIndex', 'toArray', 'size',
'first', 'rest', 'last', 'without', 'indexOf', 'lastIndexOf', 'isEmpty'];
// Mix in each Underscore method as a proxy to `Collection#models`.
_.each(methods, function(method) {
Backbone.Collection.prototype[method] = function() {
return _[method].apply(_, [this.models].concat(_.toArray(arguments)));
};
});
// Backbone.Router
// -------------------
// Routers map faux-URLs to actions, and fire events when routes are
// matched. Creating a new one sets its `routes` hash, if not set statically.
Backbone.Router = function(options) {
options || (options = {});
if (options.routes) this.routes = options.routes;
this._bindRoutes();
this.initialize(options);
};
// Cached regular expressions for matching named param parts and splatted
// parts of route strings.
var namedParam = /:([\w\d]+)/g;
var splatParam = /\*([\w\d]+)/g;
var escapeRegExp = /[-[\]{}()+?.,\\^$|#\s]/g;
// Set up all inheritable **Backbone.Router** properties and methods.
_.extend(Backbone.Router.prototype, Backbone.Events, {
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize : function(){},
// Manually bind a single named route to a callback. For example:
//
// this.route('search/:query/p:num', 'search', function(query, num) {
// ...
// });
//
route : function(route, name, callback) {
Backbone.history || (Backbone.history = new Backbone.History);
if (!_.isRegExp(route)) route = this._routeToRegExp(route);
Backbone.history.route(route, _.bind(function(fragment) {
var args = this._extractParameters(route, fragment);
callback.apply(this, args);
this.trigger.apply(this, ['route:' + name].concat(args));
}, this));
},
// Simple proxy to `Backbone.history` to save a fragment into the history,
// without triggering routes.
saveLocation : function(fragment) {
Backbone.history.saveLocation(fragment);
},
// Simple proxy to `Backbone.history` to both save a fragment into the
// history and to then load the route at that fragment.
setLocation : function(fragment) {
Backbone.history.saveLocation(fragment);
Backbone.history.loadUrl(fragment);
},
// Bind all defined routes to `Backbone.history`. We have to reverse the
// order of the routes here to support behavior where the most general
// routes can be defined at the bottom of the route map.
_bindRoutes : function() {
if (!this.routes) return;
var routes = [];
for (var route in this.routes) {
routes.unshift([route, this.routes[route]]);
}
for (var i = 0, l = routes.length; i < l; i++) {
this.route(routes[i][0], routes[i][1], this[routes[i][1]]);
}
},
// Convert a route string into a regular expression, suitable for matching
// against the current location hash.
_routeToRegExp : function(route) {
route = route.replace(escapeRegExp, "\\$&")
.replace(namedParam, "([^\/]*)")
.replace(splatParam, "(.*?)");
return new RegExp('^' + route + '$');
},
// Given a route, and a URL fragment that it matches, return the array of
// extracted parameters.
_extractParameters : function(route, fragment) {
return route.exec(fragment).slice(1);
}
});
// Backbone.History
// ----------------
// Handles cross-browser history management, based on URL fragments. If the
// browser does not support `onhashchange`, falls back to polling.
Backbone.History = function() {
this.handlers = [];
_.bindAll(this, 'checkUrl');
};
// Cached regex for cleaning hashes.
var hashStrip = /^#*!?/;
// Cached regex for detecting MSIE.
var isExplorer = /msie [\w.]+/;
// Has the history handling already been started?
var historyStarted = false;
// Set up all inheritable **Backbone.History** properties and methods.
_.extend(Backbone.History.prototype, {
// The default interval to poll for hash changes, if necessary, is
// twenty times a second.
interval: 50,
// Get the cross-browser normalized URL fragment, either from the URL,
// the hash, or the override.
getFragment : function(fragment, forcePushState) {
if (fragment == null) {
if (this._hasPushState || forcePushState) {
fragment = window.location.pathname;
var search = window.location.search;
if (search) fragment += search;
if (fragment.indexOf(this.options.root) == 0) fragment = fragment.substr(this.options.root.length);
} else {
fragment = window.location.hash;
}
}
return fragment.replace(hashStrip, '');
},
// Start the hash change handling, returning `true` if the current URL matches
// an existing route, and `false` otherwise.
start : function(options) {
// Figure out the initial configuration. Do we need an iframe?
// Is pushState desired ... is it available?
if (historyStarted) throw new Error("Backbone.history has already been started");
this.options = _.extend({}, {root: '/'}, this.options, options);
this._wantsPushState = !!this.options.pushState;
this._hasPushState = !!(this.options.pushState && window.history && window.history.pushState);
var fragment = this.getFragment();
var docMode = document.documentMode;
var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));
if (oldIE) {
this.iframe = $('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo('body')[0].contentWindow;
this.saveLocation(fragment);
}
// Depending on whether we're using pushState or hashes, and whether
// 'onhashchange' is supported, determine how we check the URL state.
if (this._hasPushState) {
$(window).bind('popstate', this.checkUrl);
} else if ('onhashchange' in window && !oldIE) {
$(window).bind('hashchange', this.checkUrl);
} else {
setInterval(this.checkUrl, this.interval);
}
// Determine if we need to change the base url, for a pushState link
// opened by a non-pushState browser.
this.fragment = fragment;
historyStarted = true;
var started = this.loadUrl() || this.loadUrl(window.location.hash);
if (this._wantsPushState && !this._hasPushState && window.location.pathname != this.options.root) {
this.fragment = this.getFragment(null, true);
window.location = this.options.root + '#' + this.fragment;
} else {
return started;
}
},
// Add a route to be tested when the fragment changes. Routes added later may
// override previous routes.
route : function(route, callback) {
this.handlers.unshift({route : route, callback : callback});
},
// Checks the current URL to see if it has changed, and if it has,
// calls `loadUrl`, normalizing across the hidden iframe.
checkUrl : function(e) {
var current = this.getFragment();
if (current == this.fragment && this.iframe) current = this.getFragment(this.iframe.location.hash);
if (current == this.fragment || current == decodeURIComponent(this.fragment)) return false;
if (this.iframe) this.saveLocation(current);
this.loadUrl() || this.loadUrl(window.location.hash);
},
// Attempt to load the current URL fragment. If a route succeeds with a
// match, returns `true`. If no defined routes matches the fragment,
// returns `false`.
loadUrl : function(fragmentOverride) {
var fragment = this.fragment = this.getFragment(fragmentOverride);
var matched = _.any(this.handlers, function(handler) {
if (handler.route.test(fragment)) {
handler.callback(fragment);
return true;
}
});
return matched;
},
// Save a fragment into the hash history. You are responsible for properly
// URL-encoding the fragment in advance. This does not trigger
// a `hashchange` event.
saveLocation : function(fragment) {
fragment = (fragment || '').replace(hashStrip, '');
if (this.fragment == fragment || this.fragment == decodeURIComponent(fragment)) return;
if (this._hasPushState) {
var loc = window.location;
if (fragment.indexOf(this.options.root) != 0) fragment = this.options.root + fragment;
this.fragment = fragment;
window.history.pushState({}, document.title, loc.protocol + '//' + loc.host + fragment);
} else {
window.location.hash = this.fragment = fragment;
if (this.iframe && (fragment != this.getFragment(this.iframe.location.hash))) {
this.iframe.document.open().close();
this.iframe.location.hash = fragment;
}
}
}
});
// Backbone.View
// -------------
// Creating a Backbone.View creates its initial element outside of the DOM,
// if an existing element is not provided...
Backbone.View = function(options) {
this.cid = _.uniqueId('view');
this._configure(options || {});
this._ensureElement();
this.delegateEvents();
this.initialize(options);
};
// Element lookup, scoped to DOM elements within the current view.
// This should be prefered to global lookups, if you're dealing with
// a specific view.
var selectorDelegate = function(selector) {
return $(selector, this.el);
};
// Cached regex to split keys for `delegate`.
var eventSplitter = /^(\S+)\s*(.*)$/;
// List of view options to be merged as properties.
var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName'];
// Set up all inheritable **Backbone.View** properties and methods.
_.extend(Backbone.View.prototype, Backbone.Events, {
// The default `tagName` of a View's element is `"div"`.
tagName : 'div',
// Attach the `selectorDelegate` function as the `$` property.
$ : selectorDelegate,
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize : function(){},
// **render** is the core function that your view should override, in order
// to populate its element (`this.el`), with the appropriate HTML. The
// convention is for **render** to always return `this`.
render : function() {
return this;
},
// Remove this view from the DOM. Note that the view isn't present in the
// DOM by default, so calling this method may be a no-op.
remove : function() {
$(this.el).remove();
return this;
},
// For small amounts of DOM Elements, where a full-blown template isn't
// needed, use **make** to manufacture elements, one at a time.
//
// var el = this.make('li', {'class': 'row'}, this.model.escape('title'));
//
make : function(tagName, attributes, content) {
var el = document.createElement(tagName);
if (attributes) $(el).attr(attributes);
if (content) $(el).html(content);
return el;
},
// Set callbacks, where `this.callbacks` is a hash of
//
// *{"event selector": "callback"}*
//
// {
// 'mousedown .title': 'edit',
// 'click .button': 'save'
// }
//
// pairs. Callbacks will be bound to the view, with `this` set properly.
// Uses event delegation for efficiency.
// Omitting the selector binds the event to `this.el`.
// This only works for delegate-able events: not `focus`, `blur`, and
// not `change`, `submit`, and `reset` in Internet Explorer.
delegateEvents : function(events) {
if (!(events || (events = this.events))) return;
$(this.el).unbind('.delegateEvents' + this.cid);
for (var key in events) {
var methodName = events[key];
var match = key.match(eventSplitter);
var eventName = match[1], selector = match[2];
var method = _.bind(this[methodName], this);
eventName += '.delegateEvents' + this.cid;
if (selector === '') {
$(this.el).bind(eventName, method);
} else {
$(this.el).delegate(selector, eventName, method);
}
}
},
// Performs the initial configuration of a View with a set of options.
// Keys with special meaning *(model, collection, id, className)*, are
// attached directly to the view.
_configure : function(options) {
if (this.options) options = _.extend({}, this.options, options);
for (var i = 0, l = viewOptions.length; i < l; i++) {
var attr = viewOptions[i];
if (options[attr]) this[attr] = options[attr];
}
this.options = options;
},
// Ensure that the View has a DOM element to render into.
// If `this.el` is a string, pass it through `$()`, take the first
// matching element, and re-assign it to `el`. Otherwise, create
// an element from the `id`, `className` and `tagName` proeprties.
_ensureElement : function() {
if (!this.el) {
var attrs = this.attributes || {};
if (this.id) attrs.id = this.id;
if (this.className) attrs['class'] = this.className;
this.el = this.make(this.tagName, attrs);
} else if (_.isString(this.el)) {
this.el = $(this.el).get(0);
}
}
});
// The self-propagating extend function that Backbone classes use.
var extend = function (protoProps, classProps) {
var child = inherits(this, protoProps, classProps);
child.extend = this.extend;
return child;
};
// Set up inheritance for the model, collection, and view.
Backbone.Model.extend = Backbone.Collection.extend =
Backbone.Router.extend = Backbone.View.extend = extend;
// Map from CRUD to HTTP for our default `Backbone.sync` implementation.
var methodMap = {
'create': 'POST',
'update': 'PUT',
'delete': 'DELETE',
'read' : 'GET'
};
// Backbone.sync
// -------------
// Override this function to change the manner in which Backbone persists
// models to the server. You will be passed the type of request, and the
// model in question. By default, uses makes a RESTful Ajax request
// to the model's `url()`. Some possible customizations could be:
//
// * Use `setTimeout` to batch rapid-fire updates into a single request.
// * Send up the models as XML instead of JSON.
// * Persist models via WebSockets instead of Ajax.
//
// Turn on `Backbone.emulateHTTP` in order to send `PUT` and `DELETE` requests
// as `POST`, with a `_method` parameter containing the true HTTP method,
// as well as all requests with the body as `application/x-www-form-urlencoded` instead of
// `application/json` with the model in a param named `model`.
// Useful when interfacing with server-side languages like **PHP** that make
// it difficult to read the body of `PUT` requests.
Backbone.sync = function(method, model, options) {
var type = methodMap[method];
// Default JSON-request options.
var params = _.extend({
type: type,
dataType: 'json',
processData: false
}, options);
// Ensure that we have a URL.
if (!params.url) {
params.url = getUrl(model) || urlError();
}
// Ensure that we have the appropriate request data.
if (!params.data && model && (method == 'create' || method == 'update')) {
params.contentType = 'application/json';
params.data = JSON.stringify(model.toJSON());
}
// For older servers, emulate JSON by encoding the request into an HTML-form.
if (Backbone.emulateJSON) {
params.contentType = 'application/x-www-form-urlencoded';
params.processData = true;
params.data = params.data ? {model : params.data} : {};
}
// For older servers, emulate HTTP by mimicking the HTTP method with `_method`
// And an `X-HTTP-Method-Override` header.
if (Backbone.emulateHTTP) {
if (type === 'PUT' || type === 'DELETE') {
if (Backbone.emulateJSON) params.data._method = type;
params.type = 'POST';
params.beforeSend = function(xhr) {
xhr.setRequestHeader('X-HTTP-Method-Override', type);
};
}
}
// Make the request.
return $.ajax(params);
};
// Helpers
// -------
// Shared empty constructor function to aid in prototype-chain creation.
var ctor = function(){};
// Helper function to correctly set up the prototype chain, for subclasses.
// Similar to `goog.inherits`, but uses a hash of prototype properties and
// class properties to be extended.
var inherits = function(parent, protoProps, staticProps) {
var child;
// The constructor function for the new subclass is either defined by you
// (the "constructor" property in your `extend` definition), or defaulted
// by us to simply call `super()`.
if (protoProps && protoProps.hasOwnProperty('constructor')) {
child = protoProps.constructor;
} else {
child = function(){ return parent.apply(this, arguments); };
}
// Inherit class (static) properties from parent.
_.extend(child, parent);
// Set the prototype chain to inherit from `parent`, without calling
// `parent`'s constructor function.
ctor.prototype = parent.prototype;
child.prototype = new ctor();
// Add prototype properties (instance properties) to the subclass,
// if supplied.
if (protoProps) _.extend(child.prototype, protoProps);
// Add static properties to the constructor function, if supplied.
if (staticProps) _.extend(child, staticProps);
// Correctly set child's `prototype.constructor`.
child.prototype.constructor = child;
// Set a convenience property in case the parent's prototype is needed later.
child.__super__ = parent.prototype;
return child;
};
// Helper function to get a URL from a Model or Collection as a property
// or as a function.
var getUrl = function(object) {
if (!(object && object.url)) return null;
return _.isFunction(object.url) ? object.url() : object.url;
};
// Throw an error when a URL is needed, and none is supplied.
var urlError = function() {
throw new Error("A 'url' property or function must be specified");
};
// Wrap an optional error callback with a fallback error event.
var wrapError = function(onError, model, options) {
return function(resp) {
if (onError) {
onError(model, resp, options);
} else {
model.trigger('error', model, resp, options);
}
};
};
// Helper function to escape a string for HTML rendering.
var escapeHTML = function(string) {
return string.replace(/&(?!\w+;|#\d+;|#x[\da-f]+;)/gi, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;').replace(/'/g, '&#x27').replace(/\//g,'&#x2F;');
};
}).call(this);
(function() {
'use strict';
// Todo Collection
// ---------------
// The collection of todos is backed by *localStorage* instead of a remote
// server.
var TodoList = Backbone.Collection.extend({
// Reference to this collection's model.
model: window.app.Todo,
// Save all of the todo items under the `"todos"` namespace.
localStorage: new Store("todos-backbone"),
// Filter down the list of all todo items that are finished.
completed: function() {
return this.filter(function(todo){ return todo.get('completed'); });
},
// Filter down the list to only todo items that are still not finished.
remaining: function() {
return this.without.apply(this, this.completed());
},
// We keep the Todos in sequential order, despite being saved by unordered
// GUID in the database. This generates the next order number for new items.
nextOrder: function() {
if ( !this.length ){
return 1;
}
return this.last().get('order') + 1;
},
// Todos are sorted by their original insertion order.
comparator: function(todo) {
return todo.get('order');
}
});
// Create our global collection of **Todos**.
window.app.Todos = new TodoList;
})();
// Constants
var ENTER_KEY = 13;
// Setup namespace for the app
window.app = window.app || {};
\ No newline at end of file
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a})}}),f.each(["Left","Top"],function(a,c){var d="scroll"+c;f.fn[d]=function(c){var e,g;if(c===b){e=this[0];if(!e)return null;g=cu(e);return g?"pageXOffset"in g?g[a?"pageYOffset":"pageXOffset"]:f.support.boxModel&&g.document.documentElement[d]||g.document.body[d]:e[d]}return this.each(function(){g=cu(this),g?g.scrollTo(a?f(g).scrollLeft():c,a?c:f(g).scrollTop()):this[d]=c})}}),f.each(["Height","Width"],function(a,c){var d=c.toLowerCase();f.fn["inner"+c]=function(){var a=this[0];return a&&a.style?parseFloat(f.css(a,d,"padding")):null},f.fn["outer"+c]=function(a){var b=this[0];return b&&b.style?parseFloat(f.css(b,d,a?"margin":"border")):null},f.fn[d]=function(a){var e=this[0];if(!e)return a==null?null:this;if(f.isFunction(a))return this.each(function(b){var c=f(this);c[d](a.call(this,b,c[d]()))});if(f.isWindow(e)){var g=e.document.documentElement["client"+c],h=e.document.body;return e.document.compatMode==="CSS1Compat"&&g||h&&h["client"+c]||g}if(e.nodeType===9)return 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\ No newline at end of file
// JSLitmus.js
//
// Copyright (c) 2010, Robert Kieffer, http://broofa.com
// Available under MIT license (http://en.wikipedia.org/wiki/MIT_License)
(function() {
// Private methods and state
// Get platform info but don't go crazy trying to recognize everything
// that's out there. This is just for the major platforms and OSes.
var platform = 'unknown platform', ua = navigator.userAgent;
// Detect OS
var oses = ['Windows','iPhone OS','(Intel |PPC )?Mac OS X','Linux'].join('|');
var pOS = new RegExp('((' + oses + ') [^ \);]*)').test(ua) ? RegExp.$1 : null;
if (!pOS) pOS = new RegExp('((' + oses + ')[^ \);]*)').test(ua) ? RegExp.$1 : null;
// Detect browser
var pName = /(Chrome|MSIE|Safari|Opera|Firefox)/.test(ua) ? RegExp.$1 : null;
// Detect version
var vre = new RegExp('(Version|' + pName + ')[ \/]([^ ;]*)');
var pVersion = (pName && vre.test(ua)) ? RegExp.$2 : null;
var platform = (pOS && pName && pVersion) ? pName + ' ' + pVersion + ' on ' + pOS : 'unknown platform';
/**
* A smattering of methods that are needed to implement the JSLitmus testbed.
*/
var jsl = {
/**
* Enhanced version of escape()
*/
escape: function(s) {
s = s.replace(/,/g, '\\,');
s = escape(s);
s = s.replace(/\+/g, '%2b');
s = s.replace(/ /g, '+');
return s;
},
/**
* Get an element by ID.
*/
$: function(id) {
return document.getElementById(id);
},
/**
* Null function
*/
F: function() {},
/**
* Set the status shown in the UI
*/
status: function(msg) {
var el = jsl.$('jsl_status');
if (el) el.innerHTML = msg || '';
},
/**
* Convert a number to an abbreviated string like, "15K" or "10M"
*/
toLabel: function(n) {
if (n == Infinity) {
return 'Infinity';
} else if (n > 1e9) {
n = Math.round(n/1e8);
return n/10 + 'B';
} else if (n > 1e6) {
n = Math.round(n/1e5);
return n/10 + 'M';
} else if (n > 1e3) {
n = Math.round(n/1e2);
return n/10 + 'K';
}
return n;
},
/**
* Copy properties from src to dst
*/
extend: function(dst, src) {
for (var k in src) dst[k] = src[k]; return dst;
},
/**
* Like Array.join(), but for the key-value pairs in an object
*/
join: function(o, delimit1, delimit2) {
if (o.join) return o.join(delimit1); // If it's an array
var pairs = [];
for (var k in o) pairs.push(k + delimit1 + o[k]);
return pairs.join(delimit2);
},
/**
* Array#indexOf isn't supported in IE, so we use this as a cross-browser solution
*/
indexOf: function(arr, o) {
if (arr.indexOf) return arr.indexOf(o);
for (var i = 0; i < this.length; i++) if (arr[i] === o) return i;
return -1;
}
};
/**
* Test manages a single test (created with
* JSLitmus.test())
*
* @private
*/
var Test = function (name, f) {
if (!f) throw new Error('Undefined test function');
if (!/function[^\(]*\(([^,\)]*)/.test(f.toString())) {
throw new Error('"' + name + '" test: Test is not a valid Function object');
}
this.loopArg = RegExp.$1;
this.name = name;
this.f = f;
};
jsl.extend(Test, /** @lends Test */ {
/** Calibration tests for establishing iteration loop overhead */
CALIBRATIONS: [
new Test('calibrating loop', function(count) {while (count--);}),
new Test('calibrating function', jsl.F)
],
/**
* Run calibration tests. Returns true if calibrations are not yet
* complete (in which case calling code should run the tests yet again).
* onCalibrated - Callback to invoke when calibrations have finished
*/
calibrate: function(onCalibrated) {
for (var i = 0; i < Test.CALIBRATIONS.length; i++) {
var cal = Test.CALIBRATIONS[i];
if (cal.running) return true;
if (!cal.count) {
cal.isCalibration = true;
cal.onStop = onCalibrated;
//cal.MIN_TIME = .1; // Do calibrations quickly
cal.run(2e4);
return true;
}
}
return false;
}
});
jsl.extend(Test.prototype, {/** @lends Test.prototype */
/** Initial number of iterations */
INIT_COUNT: 10,
/** Max iterations allowed (i.e. used to detect bad looping functions) */
MAX_COUNT: 1e9,
/** Minimum time a test should take to get valid results (secs) */
MIN_TIME: .5,
/** Callback invoked when test state changes */
onChange: jsl.F,
/** Callback invoked when test is finished */
onStop: jsl.F,
/**
* Reset test state
*/
reset: function() {
delete this.count;
delete this.time;
delete this.running;
delete this.error;
},
/**
* Run the test (in a timeout). We use a timeout to make sure the browser
* has a chance to finish rendering any UI changes we've made, like
* updating the status message.
*/
run: function(count) {
count = count || this.INIT_COUNT;
jsl.status(this.name + ' x ' + count);
this.running = true;
var me = this;
setTimeout(function() {me._run(count);}, 200);
},
/**
* The nuts and bolts code that actually runs a test
*/
_run: function(count) {
var me = this;
// Make sure calibration tests have run
if (!me.isCalibration && Test.calibrate(function() {me.run(count);})) return;
this.error = null;
try {
var start, f = this.f, now, i = count;
// Start the timer
start = new Date();
// Now for the money shot. If this is a looping function ...
if (this.loopArg) {
// ... let it do the iteration itself
f(count);
} else {
// ... otherwise do the iteration for it
while (i--) f();
}
// Get time test took (in secs)
this.time = Math.max(1,new Date() - start)/1000;
// Store iteration count and per-operation time taken
this.count = count;
this.period = this.time/count;
// Do we need to do another run?
this.running = this.time <= this.MIN_TIME;
// ... if so, compute how many times we should iterate
if (this.running) {
// Bump the count to the nearest power of 2
var x = this.MIN_TIME/this.time;
var pow = Math.pow(2, Math.max(1, Math.ceil(Math.log(x)/Math.log(2))));
count *= pow;
if (count > this.MAX_COUNT) {
throw new Error('Max count exceeded. If this test uses a looping function, make sure the iteration loop is working properly.');
}
}
} catch (e) {
// Exceptions are caught and displayed in the test UI
this.reset();
this.error = e;
}
// Figure out what to do next
if (this.running) {
me.run(count);
} else {
jsl.status('');
me.onStop(me);
}
// Finish up
this.onChange(this);
},
/**
* Get the number of operations per second for this test.
*
* @param normalize if true, iteration loop overhead taken into account
*/
getHz: function(/**Boolean*/ normalize) {
var p = this.period;
// Adjust period based on the calibration test time
if (normalize && !this.isCalibration) {
var cal = Test.CALIBRATIONS[this.loopArg ? 0 : 1];
// If the period is within 20% of the calibration time, then zero the
// it out
p = p < cal.period*1.2 ? 0 : p - cal.period;
}
return Math.round(1/p);
},
/**
* Get a friendly string describing the test
*/
toString: function() {
return this.name + ' - ' + this.time/this.count + ' secs';
}
});
// CSS we need for the UI
var STYLESHEET = '<style> \
#jslitmus {font-family:sans-serif; font-size: 12px;} \
#jslitmus a {text-decoration: none;} \
#jslitmus a:hover {text-decoration: underline;} \
#jsl_status { \
margin-top: 10px; \
font-size: 10px; \
color: #888; \
} \
A IMG {border:none} \
#test_results { \
margin-top: 10px; \
font-size: 12px; \
font-family: sans-serif; \
border-collapse: collapse; \
border-spacing: 0px; \
} \
#test_results th, #test_results td { \
border: solid 1px #ccc; \
vertical-align: top; \
padding: 3px; \
} \
#test_results th { \
vertical-align: bottom; \
background-color: #ccc; \
padding: 1px; \
font-size: 10px; \
} \
#test_results #test_platform { \
color: #444; \
text-align:center; \
} \
#test_results .test_row { \
color: #006; \
cursor: pointer; \
} \
#test_results .test_nonlooping { \
border-left-style: dotted; \
border-left-width: 2px; \
} \
#test_results .test_looping { \
border-left-style: solid; \
border-left-width: 2px; \
} \
#test_results .test_name {white-space: nowrap;} \
#test_results .test_pending { \
} \
#test_results .test_running { \
font-style: italic; \
} \
#test_results .test_done {} \
#test_results .test_done { \
text-align: right; \
font-family: monospace; \
} \
#test_results .test_error {color: #600;} \
#test_results .test_error .error_head {font-weight:bold;} \
#test_results .test_error .error_body {font-size:85%;} \
#test_results .test_row:hover td { \
background-color: #ffc; \
text-decoration: underline; \
} \
#chart { \
margin: 10px 0px; \
width: 250px; \
} \
#chart img { \
border: solid 1px #ccc; \
margin-bottom: 5px; \
} \
#chart #tiny_url { \
height: 40px; \
width: 250px; \
} \
#jslitmus_credit { \
font-size: 10px; \
color: #888; \
margin-top: 8px; \
} \
</style>';
// HTML markup for the UI
var MARKUP = '<div id="jslitmus"> \
<button onclick="JSLitmus.runAll(event)">Run Tests</button> \
<button id="stop_button" disabled="disabled" onclick="JSLitmus.stop()">Stop Tests</button> \
<br \> \
<br \> \
<input type="checkbox" style="vertical-align: middle" id="test_normalize" checked="checked" onchange="JSLitmus.renderAll()""> Normalize results \
<table id="test_results"> \
<colgroup> \
<col /> \
<col width="100" /> \
</colgroup> \
<tr><th id="test_platform" colspan="2">' + platform + '</th></tr> \
<tr><th>Test</th><th>Ops/sec</th></tr> \
<tr id="test_row_template" class="test_row" style="display:none"> \
<td class="test_name"></td> \
<td class="test_result">Ready</td> \
</tr> \
</table> \
<div id="jsl_status"></div> \
<div id="chart" style="display:none"> \
<a id="chart_link" target="_blank"><img id="chart_image"></a> \
TinyURL (for chart): \
<iframe id="tiny_url" frameBorder="0" scrolling="no" src=""></iframe> \
</div> \
<a id="jslitmus_credit" title="JSLitmus home page" href="http://code.google.com/p/jslitmus" target="_blank">Powered by JSLitmus</a> \
</div>';
/**
* The public API for creating and running tests
*/
window.JSLitmus = {
/** The list of all tests that have been registered with JSLitmus.test */
_tests: [],
/** The queue of tests that need to be run */
_queue: [],
/**
* The parsed query parameters the current page URL. This is provided as a
* convenience for test functions - it's not used by JSLitmus proper
*/
params: {},
/**
* Initialize
*/
_init: function() {
// Parse query params into JSLitmus.params[] hash
var match = (location + '').match(/([^?#]*)(#.*)?$/);
if (match) {
var pairs = match[1].split('&');
for (var i = 0; i < pairs.length; i++) {
var pair = pairs[i].split('=');
if (pair.length > 1) {
var key = pair.shift();
var value = pair.length > 1 ? pair.join('=') : pair[0];
this.params[key] = value;
}
}
}
// Write out the stylesheet. We have to do this here because IE
// doesn't honor sheets written after the document has loaded.
document.write(STYLESHEET);
// Setup the rest of the UI once the document is loaded
if (window.addEventListener) {
window.addEventListener('load', this._setup, false);
} else if (document.addEventListener) {
document.addEventListener('load', this._setup, false);
} else if (window.attachEvent) {
window.attachEvent('onload', this._setup);
}
return this;
},
/**
* Set up the UI
*/
_setup: function() {
var el = jsl.$('jslitmus_container');
if (!el) document.body.appendChild(el = document.createElement('div'));
el.innerHTML = MARKUP;
// Render the UI for all our tests
for (var i=0; i < JSLitmus._tests.length; i++)
JSLitmus.renderTest(JSLitmus._tests[i]);
},
/**
* (Re)render all the test results
*/
renderAll: function() {
for (var i = 0; i < JSLitmus._tests.length; i++)
JSLitmus.renderTest(JSLitmus._tests[i]);
JSLitmus.renderChart();
},
/**
* (Re)render the chart graphics
*/
renderChart: function() {
var url = JSLitmus.chartUrl();
jsl.$('chart_link').href = url;
jsl.$('chart_image').src = url;
jsl.$('chart').style.display = '';
// Update the tiny URL
jsl.$('tiny_url').src = 'http://tinyurl.com/api-create.php?url='+escape(url);
},
/**
* (Re)render the results for a specific test
*/
renderTest: function(test) {
// Make a new row if needed
if (!test._row) {
var trow = jsl.$('test_row_template');
if (!trow) return;
test._row = trow.cloneNode(true);
test._row.style.display = '';
test._row.id = '';
test._row.onclick = function() {JSLitmus._queueTest(test);};
test._row.title = 'Run ' + test.name + ' test';
trow.parentNode.appendChild(test._row);
test._row.cells[0].innerHTML = test.name;
}
var cell = test._row.cells[1];
var cns = [test.loopArg ? 'test_looping' : 'test_nonlooping'];
if (test.error) {
cns.push('test_error');
cell.innerHTML =
'<div class="error_head">' + test.error + '</div>' +
'<ul class="error_body"><li>' +
jsl.join(test.error, ': ', '</li><li>') +
'</li></ul>';
} else {
if (test.running) {
cns.push('test_running');
cell.innerHTML = 'running';
} else if (jsl.indexOf(JSLitmus._queue, test) >= 0) {
cns.push('test_pending');
cell.innerHTML = 'pending';
} else if (test.count) {
cns.push('test_done');
var hz = test.getHz(jsl.$('test_normalize').checked);
cell.innerHTML = hz != Infinity ? hz : '&infin;';
cell.title = 'Looped ' + test.count + ' times in ' + test.time + ' seconds';
} else {
cell.innerHTML = 'ready';
}
}
cell.className = cns.join(' ');
},
/**
* Create a new test
*/
test: function(name, f) {
// Create the Test object
var test = new Test(name, f);
JSLitmus._tests.push(test);
// Re-render if the test state changes
test.onChange = JSLitmus.renderTest;
// Run the next test if this one finished
test.onStop = function(test) {
if (JSLitmus.onTestFinish) JSLitmus.onTestFinish(test);
JSLitmus.currentTest = null;
JSLitmus._nextTest();
};
// Render the new test
this.renderTest(test);
},
/**
* Add all tests to the run queue
*/
runAll: function(e) {
e = e || window.event;
var reverse = e && e.shiftKey, len = JSLitmus._tests.length;
for (var i = 0; i < len; i++) {
JSLitmus._queueTest(JSLitmus._tests[!reverse ? i : (len - i - 1)]);
}
},
/**
* Remove all tests from the run queue. The current test has to finish on
* it's own though
*/
stop: function() {
while (JSLitmus._queue.length) {
var test = JSLitmus._queue.shift();
JSLitmus.renderTest(test);
}
},
/**
* Run the next test in the run queue
*/
_nextTest: function() {
if (!JSLitmus.currentTest) {
var test = JSLitmus._queue.shift();
if (test) {
jsl.$('stop_button').disabled = false;
JSLitmus.currentTest = test;
test.run();
JSLitmus.renderTest(test);
if (JSLitmus.onTestStart) JSLitmus.onTestStart(test);
} else {
jsl.$('stop_button').disabled = true;
JSLitmus.renderChart();
}
}
},
/**
* Add a test to the run queue
*/
_queueTest: function(test) {
if (jsl.indexOf(JSLitmus._queue, test) >= 0) return;
JSLitmus._queue.push(test);
JSLitmus.renderTest(test);
JSLitmus._nextTest();
},
/**
* Generate a Google Chart URL that shows the data for all tests
*/
chartUrl: function() {
var n = JSLitmus._tests.length, markers = [], data = [];
var d, min = 0, max = -1e10;
var normalize = jsl.$('test_normalize').checked;
// Gather test data
for (var i=0; i < JSLitmus._tests.length; i++) {
var test = JSLitmus._tests[i];
if (test.count) {
var hz = test.getHz(normalize);
var v = hz != Infinity ? hz : 0;
data.push(v);
markers.push('t' + jsl.escape(test.name + '(' + jsl.toLabel(hz)+ ')') + ',000000,0,' +
markers.length + ',10');
max = Math.max(v, max);
}
}
if (markers.length <= 0) return null;
// Build chart title
var title = document.getElementsByTagName('title');
title = (title && title.length) ? title[0].innerHTML : null;
var chart_title = [];
if (title) chart_title.push(title);
chart_title.push('Ops/sec (' + platform + ')');
// Build labels
var labels = [jsl.toLabel(min), jsl.toLabel(max)];
var w = 250, bw = 15;
var bs = 5;
var h = markers.length*(bw + bs) + 30 + chart_title.length*20;
var params = {
chtt: escape(chart_title.join('|')),
chts: '000000,10',
cht: 'bhg', // chart type
chd: 't:' + data.join(','), // data set
chds: min + ',' + max, // max/min of data
chxt: 'x', // label axes
chxl: '0:|' + labels.join('|'), // labels
chsp: '0,1',
chm: markers.join('|'), // test names
chbh: [bw, 0, bs].join(','), // bar widths
// chf: 'bg,lg,0,eeeeee,0,eeeeee,.5,ffffff,1', // gradient
chs: w + 'x' + h
};
return 'http://chart.apis.google.com/chart?' + jsl.join(params, '=', '&');
}
};
JSLitmus._init();
})();
\ No newline at end of file
// Backbone.js 0.9.2
// (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(){var l=this,y=l.Backbone,z=Array.prototype.slice,A=Array.prototype.splice,g;g="undefined"!==typeof exports?exports:l.Backbone={};g.VERSION="0.9.2";var f=l._;!f&&"undefined"!==typeof require&&(f=require("underscore"));var i=l.jQuery||l.Zepto||l.ender;g.setDomLibrary=function(a){i=a};g.noConflict=function(){l.Backbone=y;return this};g.emulateHTTP=!1;g.emulateJSON=!1;var p=/\s+/,k=g.Events={on:function(a,b,c){var d,e,f,g,j;if(!b)return this;a=a.split(p);for(d=this._callbacks||(this._callbacks=
{});e=a.shift();)f=(j=d[e])?j.tail:{},f.next=g={},f.context=c,f.callback=b,d[e]={tail:g,next:j?j.next:f};return this},off:function(a,b,c){var d,e,h,g,j,q;if(e=this._callbacks){if(!a&&!b&&!c)return delete this._callbacks,this;for(a=a?a.split(p):f.keys(e);d=a.shift();)if(h=e[d],delete e[d],h&&(b||c))for(g=h.tail;(h=h.next)!==g;)if(j=h.callback,q=h.context,b&&j!==b||c&&q!==c)this.on(d,j,q);return this}},trigger:function(a){var b,c,d,e,f,g;if(!(d=this._callbacks))return this;f=d.all;a=a.split(p);for(g=
z.call(arguments,1);b=a.shift();){if(c=d[b])for(e=c.tail;(c=c.next)!==e;)c.callback.apply(c.context||this,g);if(c=f){e=c.tail;for(b=[b].concat(g);(c=c.next)!==e;)c.callback.apply(c.context||this,b)}}return this}};k.bind=k.on;k.unbind=k.off;var o=g.Model=function(a,b){var c;a||(a={});b&&b.parse&&(a=this.parse(a));if(c=n(this,"defaults"))a=f.extend({},c,a);b&&b.collection&&(this.collection=b.collection);this.attributes={};this._escapedAttributes={};this.cid=f.uniqueId("c");this.changed={};this._silent=
{};this._pending={};this.set(a,{silent:!0});this.changed={};this._silent={};this._pending={};this._previousAttributes=f.clone(this.attributes);this.initialize.apply(this,arguments)};f.extend(o.prototype,k,{changed:null,_silent:null,_pending:null,idAttribute:"id",initialize:function(){},toJSON:function(){return f.clone(this.attributes)},get:function(a){return this.attributes[a]},escape:function(a){var b;if(b=this._escapedAttributes[a])return b;b=this.get(a);return this._escapedAttributes[a]=f.escape(null==
b?"":""+b)},has:function(a){return null!=this.get(a)},set:function(a,b,c){var d,e;f.isObject(a)||null==a?(d=a,c=b):(d={},d[a]=b);c||(c={});if(!d)return this;d instanceof o&&(d=d.attributes);if(c.unset)for(e in d)d[e]=void 0;if(!this._validate(d,c))return!1;this.idAttribute in d&&(this.id=d[this.idAttribute]);var b=c.changes={},h=this.attributes,g=this._escapedAttributes,j=this._previousAttributes||{};for(e in d){a=d[e];if(!f.isEqual(h[e],a)||c.unset&&f.has(h,e))delete g[e],(c.silent?this._silent:
b)[e]=!0;c.unset?delete h[e]:h[e]=a;!f.isEqual(j[e],a)||f.has(h,e)!=f.has(j,e)?(this.changed[e]=a,c.silent||(this._pending[e]=!0)):(delete this.changed[e],delete this._pending[e])}c.silent||this.change(c);return this},unset:function(a,b){(b||(b={})).unset=!0;return this.set(a,null,b)},clear:function(a){(a||(a={})).unset=!0;return this.set(f.clone(this.attributes),a)},fetch:function(a){var a=a?f.clone(a):{},b=this,c=a.success;a.success=function(d,e,f){if(!b.set(b.parse(d,f),a))return!1;c&&c(b,d)};
a.error=g.wrapError(a.error,b,a);return(this.sync||g.sync).call(this,"read",this,a)},save:function(a,b,c){var d,e;f.isObject(a)||null==a?(d=a,c=b):(d={},d[a]=b);c=c?f.clone(c):{};if(c.wait){if(!this._validate(d,c))return!1;e=f.clone(this.attributes)}a=f.extend({},c,{silent:!0});if(d&&!this.set(d,c.wait?a:c))return!1;var h=this,i=c.success;c.success=function(a,b,e){b=h.parse(a,e);if(c.wait){delete c.wait;b=f.extend(d||{},b)}if(!h.set(b,c))return false;i?i(h,a):h.trigger("sync",h,a,c)};c.error=g.wrapError(c.error,
h,c);b=this.isNew()?"create":"update";b=(this.sync||g.sync).call(this,b,this,c);c.wait&&this.set(e,a);return b},destroy:function(a){var a=a?f.clone(a):{},b=this,c=a.success,d=function(){b.trigger("destroy",b,b.collection,a)};if(this.isNew())return d(),!1;a.success=function(e){a.wait&&d();c?c(b,e):b.trigger("sync",b,e,a)};a.error=g.wrapError(a.error,b,a);var e=(this.sync||g.sync).call(this,"delete",this,a);a.wait||d();return e},url:function(){var a=n(this,"urlRoot")||n(this.collection,"url")||t();
return this.isNew()?a:a+("/"==a.charAt(a.length-1)?"":"/")+encodeURIComponent(this.id)},parse:function(a){return a},clone:function(){return new this.constructor(this.attributes)},isNew:function(){return null==this.id},change:function(a){a||(a={});var b=this._changing;this._changing=!0;for(var c in this._silent)this._pending[c]=!0;var d=f.extend({},a.changes,this._silent);this._silent={};for(c in d)this.trigger("change:"+c,this,this.get(c),a);if(b)return this;for(;!f.isEmpty(this._pending);){this._pending=
{};this.trigger("change",this,a);for(c in this.changed)!this._pending[c]&&!this._silent[c]&&delete this.changed[c];this._previousAttributes=f.clone(this.attributes)}this._changing=!1;return this},hasChanged:function(a){return!arguments.length?!f.isEmpty(this.changed):f.has(this.changed,a)},changedAttributes:function(a){if(!a)return this.hasChanged()?f.clone(this.changed):!1;var b,c=!1,d=this._previousAttributes,e;for(e in a)if(!f.isEqual(d[e],b=a[e]))(c||(c={}))[e]=b;return c},previous:function(a){return!arguments.length||
!this._previousAttributes?null:this._previousAttributes[a]},previousAttributes:function(){return f.clone(this._previousAttributes)},isValid:function(){return!this.validate(this.attributes)},_validate:function(a,b){if(b.silent||!this.validate)return!0;var a=f.extend({},this.attributes,a),c=this.validate(a,b);if(!c)return!0;b&&b.error?b.error(this,c,b):this.trigger("error",this,c,b);return!1}});var r=g.Collection=function(a,b){b||(b={});b.model&&(this.model=b.model);b.comparator&&(this.comparator=b.comparator);
this._reset();this.initialize.apply(this,arguments);a&&this.reset(a,{silent:!0,parse:b.parse})};f.extend(r.prototype,k,{model:o,initialize:function(){},toJSON:function(a){return this.map(function(b){return b.toJSON(a)})},add:function(a,b){var c,d,e,g,i,j={},k={},l=[];b||(b={});a=f.isArray(a)?a.slice():[a];c=0;for(d=a.length;c<d;c++){if(!(e=a[c]=this._prepareModel(a[c],b)))throw Error("Can't add an invalid model to a collection");g=e.cid;i=e.id;j[g]||this._byCid[g]||null!=i&&(k[i]||this._byId[i])?
l.push(c):j[g]=k[i]=e}for(c=l.length;c--;)a.splice(l[c],1);c=0;for(d=a.length;c<d;c++)(e=a[c]).on("all",this._onModelEvent,this),this._byCid[e.cid]=e,null!=e.id&&(this._byId[e.id]=e);this.length+=d;A.apply(this.models,[null!=b.at?b.at:this.models.length,0].concat(a));this.comparator&&this.sort({silent:!0});if(b.silent)return this;c=0;for(d=this.models.length;c<d;c++)if(j[(e=this.models[c]).cid])b.index=c,e.trigger("add",e,this,b);return this},remove:function(a,b){var c,d,e,g;b||(b={});a=f.isArray(a)?
a.slice():[a];c=0;for(d=a.length;c<d;c++)if(g=this.getByCid(a[c])||this.get(a[c]))delete this._byId[g.id],delete this._byCid[g.cid],e=this.indexOf(g),this.models.splice(e,1),this.length--,b.silent||(b.index=e,g.trigger("remove",g,this,b)),this._removeReference(g);return this},push:function(a,b){a=this._prepareModel(a,b);this.add(a,b);return a},pop:function(a){var b=this.at(this.length-1);this.remove(b,a);return b},unshift:function(a,b){a=this._prepareModel(a,b);this.add(a,f.extend({at:0},b));return a},
shift:function(a){var b=this.at(0);this.remove(b,a);return b},get:function(a){return null==a?void 0:this._byId[null!=a.id?a.id:a]},getByCid:function(a){return a&&this._byCid[a.cid||a]},at:function(a){return this.models[a]},where:function(a){return f.isEmpty(a)?[]:this.filter(function(b){for(var c in a)if(a[c]!==b.get(c))return!1;return!0})},sort:function(a){a||(a={});if(!this.comparator)throw Error("Cannot sort a set without a comparator");var b=f.bind(this.comparator,this);1==this.comparator.length?
this.models=this.sortBy(b):this.models.sort(b);a.silent||this.trigger("reset",this,a);return this},pluck:function(a){return f.map(this.models,function(b){return b.get(a)})},reset:function(a,b){a||(a=[]);b||(b={});for(var c=0,d=this.models.length;c<d;c++)this._removeReference(this.models[c]);this._reset();this.add(a,f.extend({silent:!0},b));b.silent||this.trigger("reset",this,b);return this},fetch:function(a){a=a?f.clone(a):{};void 0===a.parse&&(a.parse=!0);var b=this,c=a.success;a.success=function(d,
e,f){b[a.add?"add":"reset"](b.parse(d,f),a);c&&c(b,d)};a.error=g.wrapError(a.error,b,a);return(this.sync||g.sync).call(this,"read",this,a)},create:function(a,b){var c=this,b=b?f.clone(b):{},a=this._prepareModel(a,b);if(!a)return!1;b.wait||c.add(a,b);var d=b.success;b.success=function(e,f){b.wait&&c.add(e,b);d?d(e,f):e.trigger("sync",a,f,b)};a.save(null,b);return a},parse:function(a){return a},chain:function(){return f(this.models).chain()},_reset:function(){this.length=0;this.models=[];this._byId=
{};this._byCid={}},_prepareModel:function(a,b){b||(b={});a instanceof o?a.collection||(a.collection=this):(b.collection=this,a=new this.model(a,b),a._validate(a.attributes,b)||(a=!1));return a},_removeReference:function(a){this==a.collection&&delete a.collection;a.off("all",this._onModelEvent,this)},_onModelEvent:function(a,b,c,d){("add"==a||"remove"==a)&&c!=this||("destroy"==a&&this.remove(b,d),b&&a==="change:"+b.idAttribute&&(delete this._byId[b.previous(b.idAttribute)],this._byId[b.id]=b),this.trigger.apply(this,
arguments))}});f.each("forEach,each,map,reduce,reduceRight,find,detect,filter,select,reject,every,all,some,any,include,contains,invoke,max,min,sortBy,sortedIndex,toArray,size,first,initial,rest,last,without,indexOf,shuffle,lastIndexOf,isEmpty,groupBy".split(","),function(a){r.prototype[a]=function(){return f[a].apply(f,[this.models].concat(f.toArray(arguments)))}});var u=g.Router=function(a){a||(a={});a.routes&&(this.routes=a.routes);this._bindRoutes();this.initialize.apply(this,arguments)},B=/:\w+/g,
C=/\*\w+/g,D=/[-[\]{}()+?.,\\^$|#\s]/g;f.extend(u.prototype,k,{initialize:function(){},route:function(a,b,c){g.history||(g.history=new m);f.isRegExp(a)||(a=this._routeToRegExp(a));c||(c=this[b]);g.history.route(a,f.bind(function(d){d=this._extractParameters(a,d);c&&c.apply(this,d);this.trigger.apply(this,["route:"+b].concat(d));g.history.trigger("route",this,b,d)},this));return this},navigate:function(a,b){g.history.navigate(a,b)},_bindRoutes:function(){if(this.routes){var a=[],b;for(b in this.routes)a.unshift([b,
this.routes[b]]);b=0;for(var c=a.length;b<c;b++)this.route(a[b][0],a[b][1],this[a[b][1]])}},_routeToRegExp:function(a){a=a.replace(D,"\\$&").replace(B,"([^/]+)").replace(C,"(.*?)");return RegExp("^"+a+"$")},_extractParameters:function(a,b){return a.exec(b).slice(1)}});var m=g.History=function(){this.handlers=[];f.bindAll(this,"checkUrl")},s=/^[#\/]/,E=/msie [\w.]+/;m.started=!1;f.extend(m.prototype,k,{interval:50,getHash:function(a){return(a=(a?a.location:window.location).href.match(/#(.*)$/))?a[1]:
""},getFragment:function(a,b){if(null==a)if(this._hasPushState||b){var a=window.location.pathname,c=window.location.search;c&&(a+=c)}else a=this.getHash();a.indexOf(this.options.root)||(a=a.substr(this.options.root.length));return a.replace(s,"")},start:function(a){if(m.started)throw Error("Backbone.history has already been started");m.started=!0;this.options=f.extend({},{root:"/"},this.options,a);this._wantsHashChange=!1!==this.options.hashChange;this._wantsPushState=!!this.options.pushState;this._hasPushState=
!(!this.options.pushState||!window.history||!window.history.pushState);var a=this.getFragment(),b=document.documentMode;if(b=E.exec(navigator.userAgent.toLowerCase())&&(!b||7>=b))this.iframe=i('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo("body")[0].contentWindow,this.navigate(a);this._hasPushState?i(window).bind("popstate",this.checkUrl):this._wantsHashChange&&"onhashchange"in window&&!b?i(window).bind("hashchange",this.checkUrl):this._wantsHashChange&&(this._checkUrlInterval=setInterval(this.checkUrl,
this.interval));this.fragment=a;a=window.location;b=a.pathname==this.options.root;if(this._wantsHashChange&&this._wantsPushState&&!this._hasPushState&&!b)return this.fragment=this.getFragment(null,!0),window.location.replace(this.options.root+"#"+this.fragment),!0;this._wantsPushState&&this._hasPushState&&b&&a.hash&&(this.fragment=this.getHash().replace(s,""),window.history.replaceState({},document.title,a.protocol+"//"+a.host+this.options.root+this.fragment));if(!this.options.silent)return this.loadUrl()},
stop:function(){i(window).unbind("popstate",this.checkUrl).unbind("hashchange",this.checkUrl);clearInterval(this._checkUrlInterval);m.started=!1},route:function(a,b){this.handlers.unshift({route:a,callback:b})},checkUrl:function(){var a=this.getFragment();a==this.fragment&&this.iframe&&(a=this.getFragment(this.getHash(this.iframe)));if(a==this.fragment)return!1;this.iframe&&this.navigate(a);this.loadUrl()||this.loadUrl(this.getHash())},loadUrl:function(a){var b=this.fragment=this.getFragment(a);return f.any(this.handlers,
function(a){if(a.route.test(b))return a.callback(b),!0})},navigate:function(a,b){if(!m.started)return!1;if(!b||!0===b)b={trigger:b};var c=(a||"").replace(s,"");this.fragment!=c&&(this._hasPushState?(0!=c.indexOf(this.options.root)&&(c=this.options.root+c),this.fragment=c,window.history[b.replace?"replaceState":"pushState"]({},document.title,c)):this._wantsHashChange?(this.fragment=c,this._updateHash(window.location,c,b.replace),this.iframe&&c!=this.getFragment(this.getHash(this.iframe))&&(b.replace||
this.iframe.document.open().close(),this._updateHash(this.iframe.location,c,b.replace))):window.location.assign(this.options.root+a),b.trigger&&this.loadUrl(a))},_updateHash:function(a,b,c){c?a.replace(a.toString().replace(/(javascript:|#).*$/,"")+"#"+b):a.hash=b}});var v=g.View=function(a){this.cid=f.uniqueId("view");this._configure(a||{});this._ensureElement();this.initialize.apply(this,arguments);this.delegateEvents()},F=/^(\S+)\s*(.*)$/,w="model,collection,el,id,attributes,className,tagName".split(",");
f.extend(v.prototype,k,{tagName:"div",$:function(a){return this.$el.find(a)},initialize:function(){},render:function(){return this},remove:function(){this.$el.remove();return this},make:function(a,b,c){a=document.createElement(a);b&&i(a).attr(b);c&&i(a).html(c);return a},setElement:function(a,b){this.$el&&this.undelegateEvents();this.$el=a instanceof i?a:i(a);this.el=this.$el[0];!1!==b&&this.delegateEvents();return this},delegateEvents:function(a){if(a||(a=n(this,"events"))){this.undelegateEvents();
for(var b in a){var c=a[b];f.isFunction(c)||(c=this[a[b]]);if(!c)throw Error('Method "'+a[b]+'" does not exist');var d=b.match(F),e=d[1],d=d[2],c=f.bind(c,this),e=e+(".delegateEvents"+this.cid);""===d?this.$el.bind(e,c):this.$el.delegate(d,e,c)}}},undelegateEvents:function(){this.$el.unbind(".delegateEvents"+this.cid)},_configure:function(a){this.options&&(a=f.extend({},this.options,a));for(var b=0,c=w.length;b<c;b++){var d=w[b];a[d]&&(this[d]=a[d])}this.options=a},_ensureElement:function(){if(this.el)this.setElement(this.el,
!1);else{var a=n(this,"attributes")||{};this.id&&(a.id=this.id);this.className&&(a["class"]=this.className);this.setElement(this.make(this.tagName,a),!1)}}});o.extend=r.extend=u.extend=v.extend=function(a,b){var c=G(this,a,b);c.extend=this.extend;return c};var H={create:"POST",update:"PUT","delete":"DELETE",read:"GET"};g.sync=function(a,b,c){var d=H[a];c||(c={});var e={type:d,dataType:"json"};c.url||(e.url=n(b,"url")||t());if(!c.data&&b&&("create"==a||"update"==a))e.contentType="application/json",
e.data=JSON.stringify(b.toJSON());g.emulateJSON&&(e.contentType="application/x-www-form-urlencoded",e.data=e.data?{model:e.data}:{});if(g.emulateHTTP&&("PUT"===d||"DELETE"===d))g.emulateJSON&&(e.data._method=d),e.type="POST",e.beforeSend=function(a){a.setRequestHeader("X-HTTP-Method-Override",d)};"GET"!==e.type&&!g.emulateJSON&&(e.processData=!1);return i.ajax(f.extend(e,c))};g.wrapError=function(a,b,c){return function(d,e){e=d===b?e:d;a?a(b,e,c):b.trigger("error",b,e,c)}};var x=function(){},G=function(a,
b,c){var d;d=b&&b.hasOwnProperty("constructor")?b.constructor:function(){a.apply(this,arguments)};f.extend(d,a);x.prototype=a.prototype;d.prototype=new x;b&&f.extend(d.prototype,b);c&&f.extend(d,c);d.prototype.constructor=d;d.__super__=a.prototype;return d},n=function(a,b){return!a||!a[b]?null:f.isFunction(a[b])?a[b]():a[b]},t=function(){throw Error('A "url" property or function must be specified');}}).call(this);
// Underscore.js 1.3.3
// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore is freely distributable under the MIT license.
// Portions of Underscore are inspired or borrowed from Prototype,
// Oliver Steele's Functional, and John Resig's Micro-Templating.
// For all details and documentation:
// http://documentcloud.github.com/underscore
(function(){function r(a,c,d){if(a===c)return 0!==a||1/a==1/c;if(null==a||null==c)return a===c;a._chain&&(a=a._wrapped);c._chain&&(c=c._wrapped);if(a.isEqual&&b.isFunction(a.isEqual))return a.isEqual(c);if(c.isEqual&&b.isFunction(c.isEqual))return c.isEqual(a);var e=l.call(a);if(e!=l.call(c))return!1;switch(e){case "[object String]":return a==""+c;case "[object Number]":return a!=+a?c!=+c:0==a?1/a==1/c:a==+c;case "[object Date]":case "[object Boolean]":return+a==+c;case "[object RegExp]":return a.source==
c.source&&a.global==c.global&&a.multiline==c.multiline&&a.ignoreCase==c.ignoreCase}if("object"!=typeof a||"object"!=typeof c)return!1;for(var f=d.length;f--;)if(d[f]==a)return!0;d.push(a);var f=0,g=!0;if("[object Array]"==e){if(f=a.length,g=f==c.length)for(;f--&&(g=f in a==f in c&&r(a[f],c[f],d)););}else{if("constructor"in a!="constructor"in c||a.constructor!=c.constructor)return!1;for(var h in a)if(b.has(a,h)&&(f++,!(g=b.has(c,h)&&r(a[h],c[h],d))))break;if(g){for(h in c)if(b.has(c,h)&&!f--)break;
g=!f}}d.pop();return g}var s=this,I=s._,o={},k=Array.prototype,p=Object.prototype,i=k.slice,J=k.unshift,l=p.toString,K=p.hasOwnProperty,y=k.forEach,z=k.map,A=k.reduce,B=k.reduceRight,C=k.filter,D=k.every,E=k.some,q=k.indexOf,F=k.lastIndexOf,p=Array.isArray,L=Object.keys,t=Function.prototype.bind,b=function(a){return new m(a)};"undefined"!==typeof exports?("undefined"!==typeof module&&module.exports&&(exports=module.exports=b),exports._=b):s._=b;b.VERSION="1.3.3";var j=b.each=b.forEach=function(a,
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(function() {
'use strict';
// Todo Model
// ----------
// Our basic **Todo** model has `title`, `order`, and `completed` attributes.
window.app.Todo = Backbone.Model.extend({
// Default attributes for the todo.
defaults: {
title: "empty todo...",
completed: false
},
// Ensure that each todo created has `title`.
initialize: function() {
if (!this.get("title")) {
this.set({"title": this.defaults.title});
}
},
// Toggle the `completed` state of this todo item.
toggle: function() {
this.save({completed: !this.get("completed")});
window.app.Todos.trigger('reset');
},
// Remove this Todo from *localStorage* and delete its view.
clear: function() {
this.destroy();
}
});
})();
\ No newline at end of file
(function() {
'use strict';
// Todo Router
// ----------
var Workspace = Backbone.Router.extend({
routes:{
"*filter": "setFilter"
},
setFilter: function(param){
// Set the current filter to be used
window.app.TodoFilter = param.trim() || "";
// Trigger a collection reset/addAll
window.app.Todos.trigger('reset');
}
});
window.app.TodoRouter = new Workspace;
Backbone.history.start();
})();
\ No newline at end of file
// An example Backbone application contributed by
// [Jérôme Gravel-Niquet](http://jgn.me/). This demo uses a simple
// [LocalStorage adapter](backbone-localstorage.js)
// to persist Backbone models within your browser.
// Load the application once the DOM is ready, using `jQuery.ready`:
$(function(){
// Todo Model
// ----------
// Our basic **Todo** model has `content`, `order`, and `done` attributes.
var Todo = Backbone.Model.extend({
// Default attributes for the todo.
defaults: {
content: "empty todo...",
done: false
},
// Ensure that each todo created has `content`.
initialize: function() {
if (!this.get("content")) {
this.set({"content": this.defaults.content});
}
},
// Toggle the `done` state of this todo item.
toggle: function() {
this.save({done: !this.get("done")});
},
// Remove this Todo from *localStorage* and delete its view.
clear: function() {
this.destroy();
}
});
// Todo Collection
// ---------------
// The collection of todos is backed by *localStorage* instead of a remote
// server.
var TodoList = Backbone.Collection.extend({
// Reference to this collection's model.
model: Todo,
// Save all of the todo items under the `"todos"` namespace.
localStorage: new Store("todos-backbone"),
// Filter down the list of all todo items that are finished.
done: function() {
return this.filter(function(todo){ return todo.get('done'); });
},
// Filter down the list to only todo items that are still not finished.
remaining: function() {
return this.without.apply(this, this.done());
},
// We keep the Todos in sequential order, despite being saved by unordered
// GUID in the database. This generates the next order number for new items.
nextOrder: function() {
if (!this.length) return 1;
return this.last().get('order') + 1;
},
// Todos are sorted by their original insertion order.
comparator: function(todo) {
return todo.get('order');
}
});
// Create our global collection of **Todos**.
var Todos = new TodoList;
// Todo Item View
// --------------
// The DOM element for a todo item...
var TodoView = Backbone.View.extend({
//... is a list tag.
tagName: "li",
// Cache the template function for a single item.
template: _.template($('#item-template').html()),
// The DOM events specific to an item.
events: {
"click .check" : "toggleDone",
"dblclick label.todo-content" : "edit",
"click span.todo-destroy" : "clear",
"keypress .todo-input" : "updateOnEnter",
"blur .todo-input" : "close"
},
// The TodoView listens for changes to its model, re-rendering. Since there's
// a one-to-one correspondence between a **Todo** and a **TodoView** in this
// app, we set a direct reference on the model for convenience.
initialize: function() {
_.bindAll(this, 'render', 'close', 'remove');
this.model.bind('change', this.render);
this.model.bind('destroy', this.remove);
},
// Re-render the contents of the todo item.
render: function() {
$(this.el).html(this.template(this.model.toJSON()));
this.input = this.$('.todo-input');
return this;
},
// Toggle the `"done"` state of the model.
toggleDone: function() {
this.model.toggle();
},
// Switch this view into `"editing"` mode, displaying the input field.
edit: function() {
$(this.el).addClass("editing");
this.input.focus();
},
// Close the `"editing"` mode, saving changes to the todo.
close: function() {
this.model.save({content: this.input.val()});
$(this.el).removeClass("editing");
},
// If you hit `enter`, we're through editing the item.
updateOnEnter: function(e) {
if (e.keyCode == 13) this.close();
},
// Remove the item, destroy the model.
clear: function() {
this.model.clear();
}
});
// The Application
// ---------------
// Our overall **AppView** is the top-level piece of UI.
var AppView = Backbone.View.extend({
// Instead of generating a new element, bind to the existing skeleton of
// the App already present in the HTML.
el: $("#todoapp"),
// Our template for the line of statistics at the bottom of the app.
statsTemplate: _.template($('#stats-template').html()),
// Delegated events for creating new items, and clearing completed ones.
events: {
"keypress #new-todo": "createOnEnter",
"keyup #new-todo": "showTooltip",
"click .todo-clear a": "clearCompleted",
"click .mark-all-done": "toggleAllComplete"
},
// At initialization we bind to the relevant events on the `Todos`
// collection, when items are added or changed. Kick things off by
// loading any preexisting todos that might be saved in *localStorage*.
initialize: function() {
_.bindAll(this, 'addOne', 'addAll', 'render', 'toggleAllComplete');
this.input = this.$("#new-todo");
this.allCheckbox = this.$(".mark-all-done")[0];
Todos.bind('add', this.addOne);
Todos.bind('reset', this.addAll);
Todos.bind('all', this.render);
Todos.fetch();
},
// Re-rendering the App just means refreshing the statistics -- the rest
// of the app doesn't change.
render: function() {
var done = Todos.done().length;
var remaining = Todos.remaining().length;
this.$('#todo-stats').html(this.statsTemplate({
total: Todos.length,
done: done,
remaining: remaining
}));
this.allCheckbox.checked = !remaining;
},
// Add a single todo item to the list by creating a view for it, and
// appending its element to the `<ul>`.
addOne: function(todo) {
var view = new TodoView({model: todo});
this.$("#todo-list").append(view.render().el);
},
// Add all items in the **Todos** collection at once.
addAll: function() {
Todos.each(this.addOne);
},
// Generate the attributes for a new Todo item.
newAttributes: function() {
return {
content: this.input.val(),
order: Todos.nextOrder(),
done: false
};
},
// If you hit return in the main input field, create new **Todo** model,
// persisting it to *localStorage*.
createOnEnter: function(e) {
if (e.keyCode != 13) return;
Todos.create(this.newAttributes());
this.input.val('');
},
// Clear all done todo items, destroying their models.
clearCompleted: function() {
_.each(Todos.done(), function(todo){ todo.clear(); });
return false;
},
// Lazily show the tooltip that tells you to press `enter` to save
// a new todo item, after one second.
showTooltip: function(e) {
var tooltip = this.$(".ui-tooltip-top");
var val = this.input.val();
tooltip.fadeOut();
if (this.tooltipTimeout) clearTimeout(this.tooltipTimeout);
if (val == '' || val == this.input.attr('placeholder')) return;
var show = function(){ tooltip.show().fadeIn(); };
this.tooltipTimeout = _.delay(show, 1000);
},
toggleAllComplete: function () {
var done = this.allCheckbox.checked;
Todos.each(function (todo) { todo.save({'done': done}); });
}
});
// Finally, we kick things off by creating the **App**.
var App = new AppView;
});
// Underscore.js 1.1.6
// (c) 2011 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore is freely distributable under the MIT license.
// Portions of Underscore are inspired or borrowed from Prototype,
// Oliver Steele's Functional, and John Resig's Micro-Templating.
// For all details and documentation:
// http://documentcloud.github.com/underscore
(function() {
// Baseline setup
// --------------
// Establish the root object, `window` in the browser, or `global` on the server.
var root = this;
// Save the previous value of the `_` variable.
var previousUnderscore = root._;
// Establish the object that gets returned to break out of a loop iteration.
var breaker = {};
// Save bytes in the minified (but not gzipped) version:
var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
// Create quick reference variables for speed access to core prototypes.
var slice = ArrayProto.slice,
unshift = ArrayProto.unshift,
toString = ObjProto.toString,
hasOwnProperty = ObjProto.hasOwnProperty;
// All **ECMAScript 5** native function implementations that we hope to use
// are declared here.
var
nativeForEach = ArrayProto.forEach,
nativeMap = ArrayProto.map,
nativeReduce = ArrayProto.reduce,
nativeReduceRight = ArrayProto.reduceRight,
nativeFilter = ArrayProto.filter,
nativeEvery = ArrayProto.every,
nativeSome = ArrayProto.some,
nativeIndexOf = ArrayProto.indexOf,
nativeLastIndexOf = ArrayProto.lastIndexOf,
nativeIsArray = Array.isArray,
nativeKeys = Object.keys,
nativeBind = FuncProto.bind;
// Create a safe reference to the Underscore object for use below.
var _ = function(obj) { return new wrapper(obj); };
// Export the Underscore object for **CommonJS**, with backwards-compatibility
// for the old `require()` API. If we're not in CommonJS, add `_` to the
// global object.
if (typeof module !== 'undefined' && module.exports) {
module.exports = _;
_._ = _;
} else {
root._ = _;
}
// Current version.
_.VERSION = '1.1.6';
// Collection Functions
// --------------------
// The cornerstone, an `each` implementation, aka `forEach`.
// Handles objects implementing `forEach`, arrays, and raw objects.
// Delegates to **ECMAScript 5**'s native `forEach` if available.
var each = _.each = _.forEach = function(obj, iterator, context) {
if (obj == null) return;
if (nativeForEach && obj.forEach === nativeForEach) {
obj.forEach(iterator, context);
} else if (_.isNumber(obj.length)) {
for (var i = 0, l = obj.length; i < l; i++) {
if (iterator.call(context, obj[i], i, obj) === breaker) return;
}
} else {
for (var key in obj) {
if (hasOwnProperty.call(obj, key)) {
if (iterator.call(context, obj[key], key, obj) === breaker) return;
}
}
}
};
// Return the results of applying the iterator to each element.
// Delegates to **ECMAScript 5**'s native `map` if available.
_.map = function(obj, iterator, context) {
var results = [];
if (obj == null) return results;
if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
each(obj, function(value, index, list) {
results[results.length] = iterator.call(context, value, index, list);
});
return results;
};
// **Reduce** builds up a single result from a list of values, aka `inject`,
// or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
_.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
var initial = memo !== void 0;
if (obj == null) obj = [];
if (nativeReduce && obj.reduce === nativeReduce) {
if (context) iterator = _.bind(iterator, context);
return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
}
each(obj, function(value, index, list) {
if (!initial && index === 0) {
memo = value;
initial = true;
} else {
memo = iterator.call(context, memo, value, index, list);
}
});
if (!initial) throw new TypeError("Reduce of empty array with no initial value");
return memo;
};
// The right-associative version of reduce, also known as `foldr`.
// Delegates to **ECMAScript 5**'s native `reduceRight` if available.
_.reduceRight = _.foldr = function(obj, iterator, memo, context) {
if (obj == null) obj = [];
if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
if (context) iterator = _.bind(iterator, context);
return memo !== void 0 ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
}
var reversed = (_.isArray(obj) ? obj.slice() : _.toArray(obj)).reverse();
return _.reduce(reversed, iterator, memo, context);
};
// Return the first value which passes a truth test. Aliased as `detect`.
_.find = _.detect = function(obj, iterator, context) {
var result;
any(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) {
result = value;
return true;
}
});
return result;
};
// Return all the elements that pass a truth test.
// Delegates to **ECMAScript 5**'s native `filter` if available.
// Aliased as `select`.
_.filter = _.select = function(obj, iterator, context) {
var results = [];
if (obj == null) return results;
if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
each(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) results[results.length] = value;
});
return results;
};
// Return all the elements for which a truth test fails.
_.reject = function(obj, iterator, context) {
var results = [];
if (obj == null) return results;
each(obj, function(value, index, list) {
if (!iterator.call(context, value, index, list)) results[results.length] = value;
});
return results;
};
// Determine whether all of the elements match a truth test.
// Delegates to **ECMAScript 5**'s native `every` if available.
// Aliased as `all`.
_.every = _.all = function(obj, iterator, context) {
var result = true;
if (obj == null) return result;
if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
each(obj, function(value, index, list) {
if (!(result = result && iterator.call(context, value, index, list))) return breaker;
});
return result;
};
// Determine if at least one element in the object matches a truth test.
// Delegates to **ECMAScript 5**'s native `some` if available.
// Aliased as `any`.
var any = _.some = _.any = function(obj, iterator, context) {
iterator || (iterator = _.identity);
var result = false;
if (obj == null) return result;
if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
each(obj, function(value, index, list) {
if (result = iterator.call(context, value, index, list)) return breaker;
});
return result;
};
// Determine if a given value is included in the array or object using `===`.
// Aliased as `contains`.
_.include = _.contains = function(obj, target) {
var found = false;
if (obj == null) return found;
if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
any(obj, function(value) {
if (found = value === target) return true;
});
return found;
};
// Invoke a method (with arguments) on every item in a collection.
_.invoke = function(obj, method) {
var args = slice.call(arguments, 2);
return _.map(obj, function(value) {
return (method.call ? method || value : value[method]).apply(value, args);
});
};
// Convenience version of a common use case of `map`: fetching a property.
_.pluck = function(obj, key) {
return _.map(obj, function(value){ return value[key]; });
};
// Return the maximum element or (element-based computation).
_.max = function(obj, iterator, context) {
if (!iterator && _.isArray(obj)) return Math.max.apply(Math, obj);
var result = {computed : -Infinity};
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
computed >= result.computed && (result = {value : value, computed : computed});
});
return result.value;
};
// Return the minimum element (or element-based computation).
_.min = function(obj, iterator, context) {
if (!iterator && _.isArray(obj)) return Math.min.apply(Math, obj);
var result = {computed : Infinity};
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
computed < result.computed && (result = {value : value, computed : computed});
});
return result.value;
};
// Sort the object's values by a criterion produced by an iterator.
_.sortBy = function(obj, iterator, context) {
return _.pluck(_.map(obj, function(value, index, list) {
return {
value : value,
criteria : iterator.call(context, value, index, list)
};
}).sort(function(left, right) {
var a = left.criteria, b = right.criteria;
return a < b ? -1 : a > b ? 1 : 0;
}), 'value');
};
// Use a comparator function to figure out at what index an object should
// be inserted so as to maintain order. Uses binary search.
_.sortedIndex = function(array, obj, iterator) {
iterator || (iterator = _.identity);
var low = 0, high = array.length;
while (low < high) {
var mid = (low + high) >> 1;
iterator(array[mid]) < iterator(obj) ? low = mid + 1 : high = mid;
}
return low;
};
// Safely convert anything iterable into a real, live array.
_.toArray = function(iterable) {
if (!iterable) return [];
if (iterable.toArray) return iterable.toArray();
if (_.isArray(iterable)) return iterable;
if (_.isArguments(iterable)) return slice.call(iterable);
return _.values(iterable);
};
// Return the number of elements in an object.
_.size = function(obj) {
return _.toArray(obj).length;
};
// Array Functions
// ---------------
// Get the first element of an array. Passing **n** will return the first N
// values in the array. Aliased as `head`. The **guard** check allows it to work
// with `_.map`.
_.first = _.head = function(array, n, guard) {
return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
};
// Returns everything but the first entry of the array. Aliased as `tail`.
// Especially useful on the arguments object. Passing an **index** will return
// the rest of the values in the array from that index onward. The **guard**
// check allows it to work with `_.map`.
_.rest = _.tail = function(array, index, guard) {
return slice.call(array, (index == null) || guard ? 1 : index);
};
// Get the last element of an array.
_.last = function(array) {
return array[array.length - 1];
};
// Trim out all falsy values from an array.
_.compact = function(array) {
return _.filter(array, function(value){ return !!value; });
};
// Return a completely flattened version of an array.
_.flatten = function(array) {
return _.reduce(array, function(memo, value) {
if (_.isArray(value)) return memo.concat(_.flatten(value));
memo[memo.length] = value;
return memo;
}, []);
};
// Return a version of the array that does not contain the specified value(s).
_.without = function(array) {
var values = slice.call(arguments, 1);
return _.filter(array, function(value){ return !_.include(values, value); });
};
// Produce a duplicate-free version of the array. If the array has already
// been sorted, you have the option of using a faster algorithm.
// Aliased as `unique`.
_.uniq = _.unique = function(array, isSorted) {
return _.reduce(array, function(memo, el, i) {
if (0 == i || (isSorted === true ? _.last(memo) != el : !_.include(memo, el))) memo[memo.length] = el;
return memo;
}, []);
};
// Produce an array that contains every item shared between all the
// passed-in arrays.
_.intersect = function(array) {
var rest = slice.call(arguments, 1);
return _.filter(_.uniq(array), function(item) {
return _.every(rest, function(other) {
return _.indexOf(other, item) >= 0;
});
});
};
// Zip together multiple lists into a single array -- elements that share
// an index go together.
_.zip = function() {
var args = slice.call(arguments);
var length = _.max(_.pluck(args, 'length'));
var results = new Array(length);
for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i);
return results;
};
// If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
// we need this function. Return the position of the first occurrence of an
// item in an array, or -1 if the item is not included in the array.
// Delegates to **ECMAScript 5**'s native `indexOf` if available.
// If the array is large and already in sort order, pass `true`
// for **isSorted** to use binary search.
_.indexOf = function(array, item, isSorted) {
if (array == null) return -1;
var i, l;
if (isSorted) {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
}
if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item);
for (i = 0, l = array.length; i < l; i++) if (array[i] === item) return i;
return -1;
};
// Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
_.lastIndexOf = function(array, item) {
if (array == null) return -1;
if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item);
var i = array.length;
while (i--) if (array[i] === item) return i;
return -1;
};
// Generate an integer Array containing an arithmetic progression. A port of
// the native Python `range()` function. See
// [the Python documentation](http://docs.python.org/library/functions.html#range).
_.range = function(start, stop, step) {
if (arguments.length <= 1) {
stop = start || 0;
start = 0;
}
step = arguments[2] || 1;
var len = Math.max(Math.ceil((stop - start) / step), 0);
var idx = 0;
var range = new Array(len);
while(idx < len) {
range[idx++] = start;
start += step;
}
return range;
};
// Function (ahem) Functions
// ------------------
// Create a function bound to a given object (assigning `this`, and arguments,
// optionally). Binding with arguments is also known as `curry`.
// Delegates to **ECMAScript 5**'s native `Function.bind` if available.
// We check for `func.bind` first, to fail fast when `func` is undefined.
_.bind = function(func, obj) {
if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
var args = slice.call(arguments, 2);
return function() {
return func.apply(obj, args.concat(slice.call(arguments)));
};
};
// Bind all of an object's methods to that object. Useful for ensuring that
// all callbacks defined on an object belong to it.
_.bindAll = function(obj) {
var funcs = slice.call(arguments, 1);
if (funcs.length == 0) funcs = _.functions(obj);
each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
return obj;
};
// Memoize an expensive function by storing its results.
_.memoize = function(func, hasher) {
var memo = {};
hasher || (hasher = _.identity);
return function() {
var key = hasher.apply(this, arguments);
return hasOwnProperty.call(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
};
};
// Delays a function for the given number of milliseconds, and then calls
// it with the arguments supplied.
_.delay = function(func, wait) {
var args = slice.call(arguments, 2);
return setTimeout(function(){ return func.apply(func, args); }, wait);
};
// Defers a function, scheduling it to run after the current call stack has
// cleared.
_.defer = function(func) {
return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
};
// Internal function used to implement `_.throttle` and `_.debounce`.
var limit = function(func, wait, debounce) {
var timeout;
return function() {
var context = this, args = arguments;
var throttler = function() {
timeout = null;
func.apply(context, args);
};
if (debounce) clearTimeout(timeout);
if (debounce || !timeout) timeout = setTimeout(throttler, wait);
};
};
// Returns a function, that, when invoked, will only be triggered at most once
// during a given window of time.
_.throttle = function(func, wait) {
return limit(func, wait, false);
};
// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds.
_.debounce = function(func, wait) {
return limit(func, wait, true);
};
// Returns a function that will be executed at most one time, no matter how
// often you call it. Useful for lazy initialization.
_.once = function(func) {
var ran = false, memo;
return function() {
if (ran) return memo;
ran = true;
return memo = func.apply(this, arguments);
};
};
// Returns the first function passed as an argument to the second,
// allowing you to adjust arguments, run code before and after, and
// conditionally execute the original function.
_.wrap = function(func, wrapper) {
return function() {
var args = [func].concat(slice.call(arguments));
return wrapper.apply(this, args);
};
};
// Returns a function that is the composition of a list of functions, each
// consuming the return value of the function that follows.
_.compose = function() {
var funcs = slice.call(arguments);
return function() {
var args = slice.call(arguments);
for (var i=funcs.length-1; i >= 0; i--) {
args = [funcs[i].apply(this, args)];
}
return args[0];
};
};
// Returns a function that will only be executed after being called N times.
_.after = function(times, func) {
return function() {
if (--times < 1) { return func.apply(this, arguments); }
};
};
// Object Functions
// ----------------
// Retrieve the names of an object's properties.
// Delegates to **ECMAScript 5**'s native `Object.keys`
_.keys = nativeKeys || function(obj) {
if (obj !== Object(obj)) throw new TypeError('Invalid object');
var keys = [];
for (var key in obj) if (hasOwnProperty.call(obj, key)) keys[keys.length] = key;
return keys;
};
// Retrieve the values of an object's properties.
_.values = function(obj) {
return _.map(obj, _.identity);
};
// Return a sorted list of the function names available on the object.
// Aliased as `methods`
_.functions = _.methods = function(obj) {
return _.filter(_.keys(obj), function(key){ return _.isFunction(obj[key]); }).sort();
};
// Extend a given object with all the properties in passed-in object(s).
_.extend = function(obj) {
each(slice.call(arguments, 1), function(source) {
for (var prop in source) {
if (source[prop] !== void 0) obj[prop] = source[prop];
}
});
return obj;
};
// Fill in a given object with default properties.
_.defaults = function(obj) {
each(slice.call(arguments, 1), function(source) {
for (var prop in source) {
if (obj[prop] == null) obj[prop] = source[prop];
}
});
return obj;
};
// Create a (shallow-cloned) duplicate of an object.
_.clone = function(obj) {
return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
};
// Invokes interceptor with the obj, and then returns obj.
// The primary purpose of this method is to "tap into" a method chain, in
// order to perform operations on intermediate results within the chain.
_.tap = function(obj, interceptor) {
interceptor(obj);
return obj;
};
// Perform a deep comparison to check if two objects are equal.
_.isEqual = function(a, b) {
// Check object identity.
if (a === b) return true;
// Different types?
var atype = typeof(a), btype = typeof(b);
if (atype != btype) return false;
// Basic equality test (watch out for coercions).
if (a == b) return true;
// One is falsy and the other truthy.
if ((!a && b) || (a && !b)) return false;
// Unwrap any wrapped objects.
if (a._chain) a = a._wrapped;
if (b._chain) b = b._wrapped;
// One of them implements an isEqual()?
if (a.isEqual) return a.isEqual(b);
// Check dates' integer values.
if (_.isDate(a) && _.isDate(b)) return a.getTime() === b.getTime();
// Both are NaN?
if (_.isNaN(a) && _.isNaN(b)) return false;
// Compare regular expressions.
if (_.isRegExp(a) && _.isRegExp(b))
return a.source === b.source &&
a.global === b.global &&
a.ignoreCase === b.ignoreCase &&
a.multiline === b.multiline;
// If a is not an object by this point, we can't handle it.
if (atype !== 'object') return false;
// Check for different array lengths before comparing contents.
if (a.length && (a.length !== b.length)) return false;
// Nothing else worked, deep compare the contents.
var aKeys = _.keys(a), bKeys = _.keys(b);
// Different object sizes?
if (aKeys.length != bKeys.length) return false;
// Recursive comparison of contents.
for (var key in a) if (!(key in b) || !_.isEqual(a[key], b[key])) return false;
return true;
};
// Is a given array or object empty?
_.isEmpty = function(obj) {
if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
for (var key in obj) if (hasOwnProperty.call(obj, key)) return false;
return true;
};
// Is a given value a DOM element?
_.isElement = function(obj) {
return !!(obj && obj.nodeType == 1);
};
// Is a given value an array?
// Delegates to ECMA5's native Array.isArray
_.isArray = nativeIsArray || function(obj) {
return toString.call(obj) === '[object Array]';
};
// Is a given variable an arguments object?
_.isArguments = function(obj) {
return !!(obj && hasOwnProperty.call(obj, 'callee'));
};
// Is a given value a function?
_.isFunction = function(obj) {
return !!(obj && obj.constructor && obj.call && obj.apply);
};
// Is a given value a string?
_.isString = function(obj) {
return !!(obj === '' || (obj && obj.charCodeAt && obj.substr));
};
// Is a given value a number?
_.isNumber = function(obj) {
return !!(obj === 0 || (obj && obj.toExponential && obj.toFixed));
};
// Is the given value `NaN`? `NaN` happens to be the only value in JavaScript
// that does not equal itself.
_.isNaN = function(obj) {
return obj !== obj;
};
// Is a given value a boolean?
_.isBoolean = function(obj) {
return obj === true || obj === false;
};
// Is a given value a date?
_.isDate = function(obj) {
return !!(obj && obj.getTimezoneOffset && obj.setUTCFullYear);
};
// Is the given value a regular expression?
_.isRegExp = function(obj) {
return !!(obj && obj.test && obj.exec && (obj.ignoreCase || obj.ignoreCase === false));
};
// Is a given value equal to null?
_.isNull = function(obj) {
return obj === null;
};
// Is a given variable undefined?
_.isUndefined = function(obj) {
return obj === void 0;
};
// Utility Functions
// -----------------
// Run Underscore.js in *noConflict* mode, returning the `_` variable to its
// previous owner. Returns a reference to the Underscore object.
_.noConflict = function() {
root._ = previousUnderscore;
return this;
};
// Keep the identity function around for default iterators.
_.identity = function(value) {
return value;
};
// Run a function **n** times.
_.times = function (n, iterator, context) {
for (var i = 0; i < n; i++) iterator.call(context, i);
};
// Add your own custom functions to the Underscore object, ensuring that
// they're correctly added to the OOP wrapper as well.
_.mixin = function(obj) {
each(_.functions(obj), function(name){
addToWrapper(name, _[name] = obj[name]);
});
};
// Generate a unique integer id (unique within the entire client session).
// Useful for temporary DOM ids.
var idCounter = 0;
_.uniqueId = function(prefix) {
var id = idCounter++;
return prefix ? prefix + id : id;
};
// By default, Underscore uses ERB-style template delimiters, change the
// following template settings to use alternative delimiters.
_.templateSettings = {
evaluate : /<%([\s\S]+?)%>/g,
interpolate : /<%=([\s\S]+?)%>/g
};
// JavaScript micro-templating, similar to John Resig's implementation.
// Underscore templating handles arbitrary delimiters, preserves whitespace,
// and correctly escapes quotes within interpolated code.
_.template = function(str, data) {
var c = _.templateSettings;
var tmpl = 'var __p=[],print=function(){__p.push.apply(__p,arguments);};' +
'with(obj||{}){__p.push(\'' +
str.replace(/\\/g, '\\\\')
.replace(/'/g, "\\'")
.replace(c.interpolate, function(match, code) {
return "'," + code.replace(/\\'/g, "'") + ",'";
})
.replace(c.evaluate || null, function(match, code) {
return "');" + code.replace(/\\'/g, "'")
.replace(/[\r\n\t]/g, ' ') + "__p.push('";
})
.replace(/\r/g, '\\r')
.replace(/\n/g, '\\n')
.replace(/\t/g, '\\t')
+ "');}return __p.join('');";
var func = new Function('obj', tmpl);
return data ? func(data) : func;
};
// The OOP Wrapper
// ---------------
// If Underscore is called as a function, it returns a wrapped object that
// can be used OO-style. This wrapper holds altered versions of all the
// underscore functions. Wrapped objects may be chained.
var wrapper = function(obj) { this._wrapped = obj; };
// Expose `wrapper.prototype` as `_.prototype`
_.prototype = wrapper.prototype;
// Helper function to continue chaining intermediate results.
var result = function(obj, chain) {
return chain ? _(obj).chain() : obj;
};
// A method to easily add functions to the OOP wrapper.
var addToWrapper = function(name, func) {
wrapper.prototype[name] = function() {
var args = slice.call(arguments);
unshift.call(args, this._wrapped);
return result(func.apply(_, args), this._chain);
};
};
// Add all of the Underscore functions to the wrapper object.
_.mixin(_);
// Add all mutator Array functions to the wrapper.
each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
var method = ArrayProto[name];
wrapper.prototype[name] = function() {
method.apply(this._wrapped, arguments);
return result(this._wrapped, this._chain);
};
});
// Add all accessor Array functions to the wrapper.
each(['concat', 'join', 'slice'], function(name) {
var method = ArrayProto[name];
wrapper.prototype[name] = function() {
return result(method.apply(this._wrapped, arguments), this._chain);
};
});
// Start chaining a wrapped Underscore object.
wrapper.prototype.chain = function() {
this._chain = true;
return this;
};
// Extracts the result from a wrapped and chained object.
wrapper.prototype.value = function() {
return this._wrapped;
};
})();
$(function( $ ) {
'use strict';
// The Application
// ---------------
// Our overall **AppView** is the top-level piece of UI.
window.app.AppView = Backbone.View.extend({
// Instead of generating a new element, bind to the existing skeleton of
// the App already present in the HTML.
el: $("#todoapp"),
// Our template for the line of statistics at the bottom of the app.
statsTemplate: _.template($('#stats-template').html()),
// Delegated events for creating new items, and clearing completed ones.
events: {
"keypress #new-todo": "createOnEnter",
"click #clear-completed": "clearCompleted",
"click #toggle-all": "toggleAllComplete"
},
// At initialization we bind to the relevant events on the `Todos`
// collection, when items are added or changed. Kick things off by
// loading any preexisting todos that might be saved in *localStorage*.
initialize: function() {
this.input = this.$("#new-todo");
this.allCheckbox = this.$("#toggle-all")[0];
window.app.Todos.on('add', this.addOne, this);
window.app.Todos.on('reset', this.addAll, this);
window.app.Todos.on('all', this.render, this);
this.$footer = $('#footer');
this.$main = $('#main');
window.app.Todos.fetch();
},
// Re-rendering the App just means refreshing the statistics -- the rest
// of the app doesn't change.
render: function() {
var completed = window.app.Todos.completed().length;
var remaining = window.app.Todos.remaining().length;
if (window.app.Todos.length) {
this.$main.show();
this.$footer.show();
this.$footer.html(this.statsTemplate({
completed: completed,
remaining: remaining
}));
this.$('#filters li a')
.removeClass('selected')
.filter("[href='#/" + (window.app.TodoFilter || "") + "']")
.addClass('selected');
} else {
this.$main.hide();
this.$footer.hide();
}
this.allCheckbox.checked = !remaining;
},
// Add a single todo item to the list by creating a view for it, and
// appending its element to the `<ul>`.
addOne: function(todo) {
var view = new window.app.TodoView({model: todo});
$("#todo-list").append(view.render().el);
},
// Add all items in the **Todos** collection at once.
addAll: function() {
this.$("#todo-list").html('');
switch(window.app.TodoFilter){
case "active":
_.each(window.app.Todos.remaining(), this.addOne);
break;
case "completed":
_.each(window.app.Todos.completed(), this.addOne);
break;
default:
window.app.Todos.each(this.addOne, this);
break;
}
},
// Generate the attributes for a new Todo item.
newAttributes: function() {
return {
title: this.input.val().trim(),
order: window.app.Todos.nextOrder(),
completed: false
};
},
// If you hit return in the main input field, create new **Todo** model,
// persisting it to *localStorage*.
createOnEnter: function(e) {
if ( e.keyCode !== ENTER_KEY ){
return;
}
if ( !this.input.val().trim() ){
return;
}
window.app.Todos.create(this.newAttributes());
this.input.val('');
},
// Clear all completed todo items, destroying their models.
clearCompleted: function() {
_.each(window.app.Todos.completed(), function(todo){ todo.clear(); });
return false;
},
toggleAllComplete: function () {
var completed = this.allCheckbox.checked;
window.app.Todos.each(function (todo) { todo.save({'completed': completed}); });
}
});
});
\ No newline at end of file
$(function() {
'use strict';
// Todo Item View
// --------------
// The DOM element for a todo item...
window.app.TodoView = Backbone.View.extend({
//... is a list tag.
tagName: "li",
// Cache the template function for a single item.
template: _.template($('#item-template').html()),
// The DOM events specific to an item.
events: {
"click .toggle" : "togglecompleted",
"dblclick .view" : "edit",
"click .destroy" : "clear",
"keypress .edit" : "updateOnEnter",
"blur .edit" : "close"
},
// The TodoView listens for changes to its model, re-rendering. Since there's
// a one-to-one correspondence between a **Todo** and a **TodoView** in this
// app, we set a direct reference on the model for convenience.
initialize: function() {
this.model.on('change', this.render, this);
this.model.on('destroy', this.remove, this);
},
// Re-render the titles of the todo item.
render: function() {
var $el = $(this.el);
$el.html(this.template(this.model.toJSON()));
$el.toggleClass('completed', this.model.get('completed'));
this.input = this.$('.edit');
return this;
},
// Toggle the `"completed"` state of the model.
togglecompleted: function() {
this.model.toggle();
},
// Switch this view into `"editing"` mode, displaying the input field.
edit: function() {
$(this.el).addClass("editing");
this.input.focus();
},
// Close the `"editing"` mode, saving changes to the todo.
close: function() {
var value = this.input.val().trim();
if ( !value ){
this.clear();
}
this.model.save({title: value});
$(this.el).removeClass("editing");
},
// If you hit `enter`, we're through editing the item.
updateOnEnter: function(e) {
if ( e.keyCode === ENTER_KEY ){
this.close();
}
},
// Remove the item, destroy the model.
clear: function() {
this.model.clear();
}
});
});
\ No newline at end of file
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