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architecture-examples/backbone/index.html
View file @ b0624d35
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Backbone.js</title>
<link rel="stylesheet" href="css/app.css"/>
<meta charset="utf-8">
<title>Backbone.js</title>
<link rel="stylesheet" href="css/app.css"/>
</head>
<body>
<div id="todoapp">
<div id="todoapp">
<header>
<h1>Todos</h1>
<input id="new-todo" type="text" placeholder="What needs to be done?">
......@@ -15,49 +15,49 @@
<section id="main">
<input id="toggle-all" type="checkbox">
<label for="toggle-all">Mark all as complete</label>
<ul id="todo-list">
</ul>
</section>
<ul id="todo-list">
</ul>
</section>
<footer>
<a id="clear-completed">Clear completed</a>
<div id="todo-count"></div>
</footer>
</div>
</div>
<div id="instructions">
Double-click to edit a todo.
</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>, <a href="http://github.com/boushley">Aaron Boushley</a>.
</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>, <a href="http://github.com/boushley">Aaron Boushley</a>.
</div>
<script src="js/libs/json2.js"></script>
<script src="js/libs/jquery-1.7.1.min.js"></script>
<script src="js/libs/underscore.js"></script>
<script src="js/libs/backbone.js"></script>
<script src="js/libs/backbone-localstorage.js"></script>
<script src="js/app.js"></script>
<script src="js/libs/json2.js"></script>
<script src="js/libs/jquery-1.7.1.min.js"></script>
<script src="js/libs/underscore.js"></script>
<script src="js/libs/backbone.js"></script>
<script src="js/libs/backbone-localstorage.js"></script>
<script src="js/app.js"></script>
<!-- Templates -->
<!-- Templates -->
<script type="text/template" id="item-template">
<div class="view">
<input class="toggle" type="checkbox" <%= done ? 'checked="checked"' : '' %> />
<label><%= title %></label>
<a class="destroy"></a>
</div>
<input class="edit" type="text" value="<%= title %>" />
</script>
<script type="text/template" id="item-template">
<div class="view">
<input class="toggle" type="checkbox" <%= done ? 'checked="checked"' : '' %> />
<label><%= title %></label>
<a class="destroy"></a>
</div>
<input class="edit" type="text" value="<%= title %>" />
</script>
<script type="text/template" id="stats-template">
<% if (done) { %>
<a id="clear-completed">Clear <%= done %> completed <%= done == 1 ? 'item' : 'items' %></a>
<% } %>
<div class="todo-count"><b><%= remaining %></b> <%= remaining == 1 ? 'item' : 'items' %> left</div>
</script>
<script type="text/template" id="stats-template">
<% if (done) { %>
<a id="clear-completed">Clear <%= done %> completed <%= done == 1 ? 'item' : 'items' %></a>
<% } %>
<div class="todo-count"><b><%= remaining %></b> <%= remaining == 1 ? 'item' : 'items' %> left</div>
</script>
</body>
</html>
architecture-examples/backbone/js/app.js
View file @ b0624d35
......@@ -6,255 +6,251 @@
// Load the application once the DOM is ready, using `jQuery.ready`:
$(function(){
// Todo Model
// ----------
// Our basic **Todo** model has `title`, `order`, and `done` attributes.
var Todo = Backbone.Model.extend({
// Default attributes for the todo.
defaults: {
title: "empty todo...",
done: false
},
// Ensure that each todo created has `title`.
initialize: function() {
if (!this.get("title")) {
this.set({"title": this.defaults.title});
}
},
// Toggle the `done` state of this todo item.
toggle: function() {
this.save({done: !this.get("done")});
},
// Remove this Todo from *localStorage* and delete its view.
clear: function() {
this.destroy();
}
});
// Todo Collection
// ---------------
// The collection of todos is backed by *localStorage* instead of a remote
// server.
var TodoList = Backbone.Collection.extend({
// Reference to this collection's model.
model: Todo,
// Save all of the todo items under the `"todos"` namespace.
localStorage: new Store("todos-backbone"),
// Filter down the list of all todo items that are finished.
done: function() {
return this.filter(function(todo){ return todo.get('done'); });
},
// Filter down the list to only todo items that are still not finished.
remaining: function() {
return this.without.apply(this, this.done());
},
// We keep the Todos in sequential order, despite being saved by unordered
// GUID in the database. This generates the next order number for new items.
nextOrder: function() {
if (!this.length) return 1;
return this.last().get('order') + 1;
},
// Todos are sorted by their original insertion order.
comparator: function(todo) {
return todo.get('order');
}
});
// Create our global collection of **Todos**.
var Todos = new TodoList;
// Todo Item View
// --------------
// The DOM element for a todo item...
var TodoView = Backbone.View.extend({
//... is a list tag.
tagName: "li",
// Cache the template function for a single item.
template: _.template($('#item-template').html()),
// The DOM events specific to an item.
events: {
"click .toggle" : "toggleDone",
"dblclick .view" : "edit",
"click a.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.bind('change', this.render, this);
this.model.bind('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()));
$el.toggleClass('done', this.model.get('done'));
this.input = this.$('.edit');
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() {
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 == 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",
"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];
Todos.bind('add', this.addOne, this);
Todos.bind('reset', this.addAll, this);
Todos.bind('all', this.render, this);
this.$footer = this.$('footer');
this.$main = $('#main');
Todos.fetch();
},
// Re-rendering the App just means refreshing the statistics -- the rest
// of the app doesn't change.
render: function() {
var done = Todos.done().length;
var remaining = Todos.remaining().length;
if (Todos.length) {
this.$main.show();
this.$footer.show();
this.$footer.html(this.statsTemplate({
done: done,
remaining: remaining
}));
} 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 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 {
title: this.input.val().trim(),
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;
if (!this.input.val().trim()) 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;
},
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;
// Todo Model
// ----------
// Our basic **Todo** model has `title`, `order`, and `done` attributes.
var Todo = Backbone.Model.extend({
// Default attributes for the todo.
defaults: {
title: "empty todo...",
done: false
},
// Ensure that each todo created has `title`.
initialize: function() {
if (!this.get("title")) {
this.set({"title": this.defaults.title});
}
},
// 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 .toggle" : "toggleDone",
"dblclick .view" : "edit",
"click a.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.bind('change', this.render, this);
this.model.bind('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()));
$el.toggleClass('done', this.model.get('done'));
this.input = this.$('.edit');
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() {
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 == 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",
"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];
Todos.bind('add', this.addOne, this);
Todos.bind('reset', this.addAll, this);
Todos.bind('all', this.render, this);
this.$footer = this.$('footer');
this.$main = $('#main');
Todos.fetch();
},
// Re-rendering the App just means refreshing the statistics -- the rest
// of the app doesn't change.
render: function() {
var done = Todos.done().length;
var remaining = Todos.remaining().length;
if (Todos.length) {
this.$main.show();
this.$footer.show();
this.$footer.html(this.statsTemplate({
done: done,
remaining: remaining
}));
} 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 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 {
title: this.input.val().trim(),
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;
if (!this.input.val().trim()) 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;
},
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;
});
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