1 files changed, 39 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/js/collections/todos.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/js/collections/todos.js
new file mode 100644
index 0000000000..f8f5d31113
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/js/collections/todos.js
@@ -0,0 +1,39 @@
+/*global Backbone */
+var app = app || {};
+
+(function () {
+    'use strict';
+
+    // Todo Collection
+    // ---------------
+
+
+    var Todos = Backbone.Collection.extend({
+        // Reference to this collection's model.
+        model: app.Todo,
+
+        // Save all of the todo items under this example's namespace.
+
+        // Filter down the list of all todo items that are finished.
+        completed: function () {
+            return this.where({completed: true});
+        },
+
+        // Filter down the list to only todo items that are still not finished.
+        remaining: function () {
+            return this.where({completed: false});
+        },
+
+        // 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 () {
+            return this.length ? this.last().get('order') + 1 : 1;
+        },
+
+        // Todos are sorted by their original insertion order.
+        comparator: 'order'
+    });
+
+    // Create our global collection of **Todos**.
+    app.todos = new Todos();
+})();