athena: A simpler implementation of WindowListProvider.

athena/wm/window_list_provider_impl_unittest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "athena/wm/window_list_provider_impl.h"
+
+#include <algorithm>
+
+#include "athena/test/athena_test_base.h"
+#include "ui/aura/test/test_window_delegate.h"
+#include "ui/aura/window.h"
+
+namespace athena {
+
+namespace {
+
+bool AreWindowListsEqual(const aura::Window::Windows& one,
+                         const aura::Window::Windows& two) {
+  return one.size() == two.size() &&
+         std::equal(one.begin(), one.end(), two.begin());
+}
+
+scoped_ptr<aura::Window> CreateWindow(aura::WindowDelegate* delegate,
+                                      ui::wm::WindowType window_type) {
+  scoped_ptr<aura::Window> window(new aura::Window(delegate));
+  window->SetType(window_type);
+  window->Init(aura::WINDOW_LAYER_SOLID_COLOR);
+  return window.Pass();
+}
+
+}  // namespace
+
+typedef test::AthenaTestBase WindowListProviderImplTest;
+
+// Tests that the order of windows match the stacking order of the windows in
+// the container, even after the order is changed through the aura Window API.
+TEST_F(WindowListProviderImplTest, StackingOrder) {
+  aura::test::TestWindowDelegate delegate;
+  scoped_ptr<aura::Window> container(new aura::Window(&delegate));
+  scoped_ptr<aura::Window> first =
+      CreateWindow(&delegate, ui::wm::WINDOW_TYPE_NORMAL);
+  scoped_ptr<aura::Window> second =
+      CreateWindow(&delegate, ui::wm::WINDOW_TYPE_NORMAL);
+  scoped_ptr<aura::Window> third =
+      CreateWindow(&delegate, ui::wm::WINDOW_TYPE_NORMAL);
+  container->AddChild(first.get());
+  container->AddChild(second.get());
+  container->AddChild(third.get());
+
+  scoped_ptr<WindowListProvider> list_provider(
+      new WindowListProviderImpl(container.get()));
+  EXPECT_TRUE(AreWindowListsEqual(container->children(),
+                                  list_provider->GetWindowList()));
+
+  container->StackChildAtTop(first.get());
+  EXPECT_TRUE(AreWindowListsEqual(container->children(),
+                                  list_provider->GetWindowList()));
+  EXPECT_EQ(first.get(), container->children().back());
+}
+
+TEST_F(WindowListProviderImplTest, ListContainsOnlyNormalWindows) {
+  aura::test::TestWindowDelegate delegate;
+  scoped_ptr<aura::Window> container(new aura::Window(&delegate));
+  scoped_ptr<aura::Window> first =
+      CreateWindow(&delegate, ui::wm::WINDOW_TYPE_NORMAL);
+  scoped_ptr<aura::Window> second =
+      CreateWindow(&delegate, ui::wm::WINDOW_TYPE_POPUP);
+  scoped_ptr<aura::Window> third =
+      CreateWindow(&delegate, ui::wm::WINDOW_TYPE_NORMAL);
+  scoped_ptr<aura::Window> fourth =
+      CreateWindow(&delegate, ui::wm::WINDOW_TYPE_MENU);
+  container->AddChild(first.get());
+  container->AddChild(second.get());
+  container->AddChild(third.get());
+  container->AddChild(fourth.get());
+
+  scoped_ptr<WindowListProvider> list_provider(
+      new WindowListProviderImpl(container.get()));
+  const aura::Window::Windows list = list_provider->GetWindowList();
+  EXPECT_EQ(list.end(), std::find(list.begin(), list.end(), second.get()));
+  EXPECT_EQ(list.end(), std::find(list.begin(), list.end(), fourth.get()));
+  EXPECT_NE(list.end(), std::find(list.begin(), list.end(), first.get()));
+  EXPECT_NE(list.end(), std::find(list.begin(), list.end(), third.get()));
+}
+
+}  // namespace athena