1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/preact/src/app/model.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/preact/src/app/model.js
new file mode 100644
index 0000000000..2c8aae1d51
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/preact/src/app/model.js
@@ -0,0 +1,54 @@
+import { uuid, store } from './util';
+
+export default class TodoModel {
+    constructor(key, sub) {
+        this.key = key;
+        this.todos = store(key) || [];
+        this.onChanges = [sub];
+    }
+
+    inform() {
+        store(this.key, this.todos);
+        this.onChanges.forEach( cb => cb() );
+    }
+
+    addTodo(title) {
+        this.todos = this.todos.concat({
+            id: uuid(),
+            title,
+            completed: false
+        });
+        this.inform();
+    }
+
+    toggleAll(completed) {
+        this.todos = this.todos.map(
+            todo => ({ ...todo, completed })
+        );
+        this.inform();
+    }
+
+    toggle(todoToToggle) {
+        this.todos = this.todos.map( todo => (
+            todo !== todoToToggle ? todo : ({ ...todo, completed: !todo.completed })
+        ) );
+        this.inform();
+    }
+
+    destroy(todo) {
+        this.todos = this.todos.filter( t => t !== todo );
+        this.inform();
+    }
+
+    save(todoToSave, title) {
+        this.todos = this.todos.map( todo => (
+            todo !== todoToSave ? todo : ({ ...todo, title })
+        ));
+        this.inform();
+    }
+
+    clearCompleted() {
+        this.todos = this.todos.filter( todo => !todo.completed );
+        this.inform();
+    }
+}