// 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.

#ifndef ASH_TEST_ASH_TEST_BASE_H_
#define ASH_TEST_ASH_TEST_BASE_H_

#include <string>

#include "ash/shell.h"
#include "base/compiler_specific.h"
#include "base/message_loop.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/aura/client/window_types.h"
#include "ui/views/test/test_views_delegate.h"

#if defined(OS_WIN)
#include "base/memory/scoped_ptr.h"
#endif

namespace aura {
class Window;
class WindowDelegate;

namespace test {
class EventGenerator;
}  // namespace test
}  // namespace aura

namespace ash {
namespace internal {
class DisplayManager;
}  // namespace internal

namespace test {

class TestMetroViewerProcessHost;
class TestShellDelegate;

class AshTestViewsDelegate : public views::TestViewsDelegate {
 public:
  // Overriden from TestViewsDelegate.
  virtual content::WebContents* CreateWebContents(
      content::BrowserContext* browser_context,
      content::SiteInstance* site_instance) OVERRIDE;
};

class AshTestBase : public testing::Test {
 public:
  AshTestBase();
  virtual ~AshTestBase();

  MessageLoopForUI* message_loop() { return &message_loop_; }

  // testing::Test:
  virtual void SetUp() OVERRIDE;
  virtual void TearDown() OVERRIDE;

  // Change the primary display's configuration to use |bounds|
  // and |scale|.
  void ChangeDisplayConfig(float scale, const gfx::Rect& bounds);

  // Update the display configuration as given in |display_specs|.
  // See ash::test::DisplayManagerTestApi::UpdateDisplay for more details.
  void UpdateDisplay(const std::string& display_specs);

  // Returns a RootWindow. Usually this is the active RootWindow, but that
  // method can return NULL sometimes, and in those cases, we fall back on the
  // primary RootWindow.
  aura::RootWindow* CurrentContext();

  // Versions of the functions in aura::test:: that go through our shell
  // StackingController instead of taking a parent.
  aura::Window* CreateTestWindowInShellWithId(int id);
  aura::Window* CreateTestWindowInShellWithBounds(const gfx::Rect& bounds);
  aura::Window* CreateTestWindowInShell(SkColor color,
                                        int id,
                                        const gfx::Rect& bounds);
  aura::Window* CreateTestWindowInShellWithDelegate(
      aura::WindowDelegate* delegate,
      int id,
      const gfx::Rect& bounds);
  aura::Window* CreateTestWindowInShellWithDelegateAndType(
      aura::WindowDelegate* delegate,
      aura::client::WindowType type,
      int id,
      const gfx::Rect& bounds);

  // Attach |window| to the current shell's root window.
  void SetDefaultParentByPrimaryRootWindow(aura::Window* window);

  // Returns the EventGenerator that uses screen coordinates and works
  // across multiple displays. It createse a new generator if it
  // hasn't been created yet.
  aura::test::EventGenerator& GetEventGenerator();

 protected:
  void RunAllPendingInMessageLoop();

  // Utility methods to emulate user logged in or not, session started or not
  // and user able to lock screen or not cases.
  void SetSessionStarted(bool session_started);
  void SetUserLoggedIn(bool user_logged_in);
  void SetCanLockScreen(bool can_lock_screen);

 private:
  MessageLoopForUI message_loop_;

  TestShellDelegate* test_shell_delegate_;

  scoped_ptr<aura::test::EventGenerator> event_generator_;
#if defined(OS_WIN)
  scoped_ptr<TestMetroViewerProcessHost> metro_viewer_host_;
#endif

  DISALLOW_COPY_AND_ASSIGN(AshTestBase);
};

}  // namespace test
}  // namespace ash

#endif  // ASH_TEST_ASH_TEST_BASE_H_