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Backbone Todos with jQuery drag & drop
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<title>Todos</title>
<link href="stylesheets/screen.css" media="all" rel="stylesheet" />
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.min.js"></script>
<script src="javascripts/json2.js"></script>
<script src="javascripts/underscore.js"></script>
<script src="javascripts/backbone.js"></script>
<script src="javascripts/backbone.localStorage.js"></script>
<script src="javascripts/todos.js"></script>
</head>
<body>
<!-- Todo App Interface -->
<div id="todoapp">
<div class="title">
<h1>Todos</h1>
</div>
<div class="content">
<div id="create-todo">
<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">
<ul id="todo-list"></ul>
</div>
<div id="todo-stats"></div>
</div>
</div>
<ul id="instructions">
<li>Double-click to edit a todo.</li>
<li><a href="../../docs/todos.html">View the annotated source.</a></li>
</ul>
<div id="credits">
Created by
<br />
<a href="http://jgn.me/">J&eacute;r&ocirc;me Gravel-Niquet</a>
</div>
<script type="text/template" id="item-template">
<div class="todo <%= done ? 'done' : '' %> " <%= id ? 'data-id="'+id+'"' : '' %>>
<div class="display">
<input class="check" type="checkbox" <%= done ? 'checked="checked"' : '' %> />
<div class="todo-text"></div>
<span class="todo-destroy"></span>
</div>
<div class="edit">
<input class="todo-input" type="text" value="" />
</div>
</div>
</script>
<script type="text/template" id="stats-template">
<% if (total) { %>
<span class="todo-count">
<span class="number"><%= remaining %></span>
<span class="word"><%= remaining == 1 ? 'item' : 'items' %></span> left.
</span>
<% } %>
<% if (done) { %>
<span class="todo-clear">
<a href="#">
Clear <span class="number-done"><%= done %></span>
completed <span class="word-done"><%= done == 1 ? 'item' : 'items' %></span>
</a>
</span>
<% } %>
</script>
</body>
</html>
Raw
screen.css
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(../images/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;
}
Raw
todos.js
// An example Backbone application contributed by
// [Jérôme Gravel-Niquet](http://jgn.me/). This demo uses a simple
// [LocalStorage adapter](backbone-localstorage.html)
// to persist Backbone models within your browser.
// Load the application once the DOM is ready, using `jQuery.ready`:
$(function() {
// Todo Model
// ----------
// Our basic **Todo** model has `text`, `order`, and `done` attributes.
window.Todo = Backbone.Model.extend({
// Default attributes for a todo item.
defaults: function() {
return {
done: false,
order: Todos.nextOrder()
};
},
// Toggle the `done` state of this todo item.
toggle: function() {
this.save({
done: !this.get("done")
});
}
});
// Todo Collection
// ---------------
// The collection of todos is backed by *localStorage* instead of a remote
// server.
window.TodoList = Backbone.Collection.extend({
// Reference to this collection's model.
model: Todo,
// Save all of the todo items under the `"todos"` namespace.
localStorage: new Store("todos"),
// Filter down the list of all todo items that are finished.
done: function() {
return this.filter(function(todo) {
return todo.get('done');
});
},
// Filter down the list to only todo items that are still not finished.
remaining: function() {
return this.without.apply(this, this.done());
},
// We keep the Todos in sequential order, despite being saved by unordered
// GUID in the database. This generates the next order number for new items.
nextOrder: function() {
if (!this.length) return 1;
return this.last().get('order') + 1;
},
// Todos are sorted by their original insertion order.
comparator: function(todo) {
return todo.get('order');
}
});
// Create our global collection of **Todos**.
window.Todos = new TodoList;
// Todo Item View
// --------------
// The DOM element for a todo item...
window.TodoView = Backbone.View.extend({
//... is a list tag.
tagName: "li",
// Cache the template function for a single item.
template: _.template($('#item-template').html()),
// The DOM events specific to an item.
events: {
"click .check": "toggleDone",
"dblclick div.todo-text": "edit",
"click span.todo-destroy": "clear",
"keypress .todo-input": "updateOnEnter"
},
// The TodoView listens for changes to its model, re-rendering.
initialize: function() {
this.model.bind('change', this.render, this);
this.model.bind('destroy', this.remove, this);
},
// Re-render the contents of the todo item.
render: function() {
$(this.el).html(this.template(this.model.toJSON()));
this.setText();
return this;
},
// To avoid XSS (not that it would be harmful in this particular app),
// we use `jQuery.text` to set the contents of the todo item.
setText: function() {
var text = this.model.get('text');
this.$('.todo-text').text(text);
this.input = this.$('.todo-input');
this.input.bind('blur', _.bind(this.close, this)).val(text);
},
// 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({
text: 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 this view from the DOM.
remove: function() {
$(this.el).remove();
},
// Remove the item, destroy the model.
clear: function() {
this.model.destroy();
}
});
// The Application
// ---------------
// Our overall **AppView** is the top-level piece of UI.
window.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"
},
// 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.$("#new-todo");
this.$("#todo-list").sortable({
update: function(event, ui) {
$('div.todo',this).each(function(i) {
var id = $(this).attr('data-id'),
todo = Todos.get(id);
todo.save({order: i + 1});
});
}
});
Todos.bind('add', this.addOne, this);
Todos.bind('reset', this.addAll, this);
Todos.bind('all', this.render, this);
Todos.fetch();
},
// Re-rendering the App just means refreshing the statistics -- the rest
// of the app doesn't change.
render: function() {
this.$('#todo-stats').html(this.statsTemplate({
total: Todos.length,
done: Todos.done().length,
remaining: Todos.remaining().length
}));
},
// 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.$("#todo-list").append(view.render().el);
},
// Add all items in the **Todos** collection at once.
addAll: function() {
Todos.each(this.addOne);
},
// If you hit return in the main input field, and there is text to save,
// create new **Todo** model persisting it to *localStorage*.
createOnEnter: function(e) {
var text = this.input.val();
if (!text || e.keyCode != 13) return;
Todos.create({
text: text
});
this.input.val('');
},
// Clear all done todo items, destroying their models.
clearCompleted: function() {
_.each(Todos.done(), function(todo) {
todo.destroy();
});
return false;
},
// Lazily show the tooltip that tells you to press `enter` to save
// a new todo item, after one second.
showTooltip: function(e) {
var tooltip = this.$(".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);
}
});
// Finally, we kick things off by creating the **App**.
window.App = new AppView;
});
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