Implement active window list for platform apps

chrome/browser/ui/views/ash/launcher/launcher_platform_app_browsertest.cc

 // Copyright (c) 2012 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 "ash/launcher/launcher.h"
 #include "ash/launcher/launcher_model.h"
 #include "ash/shell.h"
 #include "ash/wm/window_util.h"
 #include "base/command_line.h"
 #include "base/stringprintf.h"
@@ skipping 150 matching lines @@
   ASSERT_EQ(item_count, launcher->model()->item_count());
   // First app should be active again.
   ASSERT_EQ(ash::STATUS_ACTIVE, launcher->model()->ItemByID(item_id1)->status);
 
   // Close first app.
   CloseShellWindow(window1);
   --item_count;
   ASSERT_EQ(item_count, launcher->model()->item_count());
 
 }
+
+// Confirm that app windows can be reactivated by clicking their icons and that
+// the correct activation order is maintained.
+IN_PROC_BROWSER_TEST_F(LauncherPlatformAppBrowserTest, WindowActivation) {
+  ash::Launcher* launcher = ash::Shell::GetInstance()->launcher();
+  int item_count = launcher->model()->item_count();
+
+  // First run app.
+  const Extension* extension1 = LoadAndLaunchPlatformApp("launch");
+  ShellWindow* window1 = CreateShellWindow(extension1);
+  ++item_count;
+  ASSERT_EQ(item_count, launcher->model()->item_count());
+  ash::LauncherItem item1 =
+      launcher->model()->items()[launcher->model()->item_count() - 2];
+  ash::LauncherID item_id1 = item1.id;
+  ASSERT_EQ(ash::TYPE_PLATFORM_APP, item1.type);

[sky, 2012/06/12 04:32:11]

EXPECT_EQ is fine here and almost all of these. Use ASSERT when continuing on
would trigger a crash (like 183 if the item_count is wrong).

+  ASSERT_EQ(ash::STATUS_ACTIVE, item1.status);
+
+  // Then run second app.
+  const Extension* extension2 = LoadAndLaunchPlatformApp("launch_2");
+  ShellWindow* window2 = CreateShellWindow(extension2);
+  ++item_count;
+  ASSERT_EQ(item_count, launcher->model()->item_count());
+  ash::LauncherItem item2 =
+      launcher->model()->items()[launcher->model()->item_count() - 2];
+  ash::LauncherID item_id2 = item2.id;
+  ASSERT_EQ(ash::TYPE_PLATFORM_APP, item2.type);
+  ASSERT_EQ(ash::STATUS_ACTIVE, item2.status);
+
+  ASSERT_NE(item_id1, item_id2);
+  ASSERT_EQ(ash::STATUS_RUNNING, launcher->model()->ItemByID(item_id1)->status);
+
+  // Activate first one.
+  launcher->ActivateLauncherItem(launcher->model()->ItemIndexByID(item_id1));
+  ASSERT_EQ(ash::STATUS_ACTIVE, launcher->model()->ItemByID(item_id1)->status);
+  ASSERT_EQ(ash::STATUS_RUNNING, launcher->model()->ItemByID(item_id2)->status);
+  ASSERT_TRUE(ash::wm::IsActiveWindow(window1->GetNativeWindow()));
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window2->GetNativeWindow()));
+
+  // Activate second one.
+  launcher->ActivateLauncherItem(launcher->model()->ItemIndexByID(item_id2));
+  ASSERT_EQ(ash::STATUS_RUNNING, launcher->model()->ItemByID(item_id1)->status);
+  ASSERT_EQ(ash::STATUS_ACTIVE, launcher->model()->ItemByID(item_id2)->status);
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window1->GetNativeWindow()));
+  ASSERT_TRUE(ash::wm::IsActiveWindow(window2->GetNativeWindow()));
+
+  // Add window for app1. This will activate it.
+  ShellWindow* window3 = CreateShellWindow(extension1);
+  ash::wm::ActivateWindow(window3->GetNativeWindow());
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window1->GetNativeWindow()));
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window2->GetNativeWindow()));
+  ASSERT_TRUE(ash::wm::IsActiveWindow(window3->GetNativeWindow()));
+
+  // Activate the second app again
+  launcher->ActivateLauncherItem(launcher->model()->ItemIndexByID(item_id2));
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window1->GetNativeWindow()));
+  ASSERT_TRUE(ash::wm::IsActiveWindow(window2->GetNativeWindow()));
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window3->GetNativeWindow()));
+
+  // Activate the first app app
+  launcher->ActivateLauncherItem(launcher->model()->ItemIndexByID(item_id1));
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window1->GetNativeWindow()));
+  ASSERT_FALSE(ash::wm::IsActiveWindow(window2->GetNativeWindow()));
+  ASSERT_TRUE(ash::wm::IsActiveWindow(window3->GetNativeWindow()));
+
+  // Close second app.
+  CloseShellWindow(window2);
+  --item_count;
+  ASSERT_EQ(item_count, launcher->model()->item_count());
+  // First app should be active again.
+  ASSERT_EQ(ash::STATUS_ACTIVE, launcher->model()->ItemByID(item_id1)->status);
+
+  // Close first app.
+  CloseShellWindow(window3);
+  CloseShellWindow(window1);
+  --item_count;
+  ASSERT_EQ(item_count, launcher->model()->item_count());
+
+}