chrome/browser/chromeos/login/screen_manager.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_MANAGER_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_MANAGER_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/gtest_prod_util.h"
  12 #include "base/macros.h"
  13 #include "base/memory/linked_ptr.h"
  14 #include "chrome/browser/chromeos/login/screens/base_screen.h"
  15
  16 namespace chromeos {
  17
  18 // Class that manages creation and ownership of screens.
  19 class ScreenManager {
  20  public:
  21   ScreenManager();
  22   virtual ~ScreenManager();
  23
  24   // Getter for screen with lazy initialization.
  25   virtual BaseScreen* GetScreen(const std::string& screen_name);
  26
  27   // Factory for screen instances.
  28   virtual BaseScreen* CreateScreen(const std::string& screen_name) = 0;
  29
  30   bool HasScreen(const std::string& screen_name);
  31
  32  private:
  33   FRIEND_TEST_ALL_PREFIXES(EnrollmentScreenTest, TestCancel);
  34   FRIEND_TEST_ALL_PREFIXES(WizardControllerFlowTest, Accelerators);
  35   friend class WizardControllerFlowTest;
  36   friend class WizardControllerOobeResumeTest;
  37   friend class WizardInProcessBrowserTest;
  38   friend class WizardControllerBrokenLocalStateTest;
  39
  40   // Screens.
  41   typedef std::map<std::string, linked_ptr<BaseScreen>> ScreenMap;
  42   ScreenMap screens_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(ScreenManager);
  45 };
  46
  47 }  // namespace chromeos
  48
  49 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_MANAGER_H_