1 files changed, 49 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/react-redux/src/reducers/todos.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/react-redux/src/reducers/todos.js
new file mode 100644
index 0000000000..84d982664d
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/react-redux/src/reducers/todos.js
@@ -0,0 +1,49 @@
+import { ADD_TODO, DELETE_TODO, EDIT_TODO, COMPLETE_TODO, COMPLETE_ALL, CLEAR_COMPLETED } from '../constants/ActionTypes'
+
+const initialState = []
+
+export default function todos(state = initialState, action) {
+  switch (action.type) {
+    case ADD_TODO:
+      return [
+        ...state,
+        {
+          id: state.reduce((maxId, todo) => Math.max(todo.id, maxId), -1) + 1,
+          completed: false,
+          text: action.text
+        }
+      ]
+
+    case DELETE_TODO:
+      return state.filter(todo =>
+        todo.id !== action.id
+      )
+
+    case EDIT_TODO:
+      return state.map(todo =>
+        todo.id === action.id ?
+          { ...todo, text: action.text } :
+          todo
+      )
+
+    case COMPLETE_TODO:
+      return state.map(todo =>
+        todo.id === action.id ?
+          { ...todo, completed: !todo.completed } :
+          todo
+      )
+
+    case COMPLETE_ALL:
+      const areAllMarked = state.every(todo => todo.completed)
+      return state.map(todo => ({
+        ...todo,
+        completed: !areAllMarked
+      }))
+
+    case CLEAR_COMPLETED:
+      return state.filter(todo => todo.completed === false)
+
+    default:
+      return state
+  }
+}