chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.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_KIOSK_MODE_KIOSK_MODE_SCREENSAVER_H_
   6 #define CHROME_BROWSER_CHROMEOS_KIOSK_MODE_KIOSK_MODE_SCREENSAVER_H_
   7
   8 #include "ash/wm/user_activity_observer.h"
   9 #include "base/basictypes.h"
  10 #include "base/files/file_path.h"
  11 #include "base/memory/weak_ptr.h"
  12
  13 namespace extensions {
  14 class Extension;
  15 }
  16
  17 namespace chromeos {
  18
  19 class KioskModeScreensaver : public ash::UserActivityObserver {
  20  public:
  21   KioskModeScreensaver();
  22   virtual ~KioskModeScreensaver();
  23
  24  private:
  25   friend class KioskModeScreensaverTest;
  26
  27   // UserActivityObserver overrides:
  28   virtual void OnUserActivity(const ui::Event* event) OVERRIDE;
  29
  30   // Initialization functions, in order
  31   // Get the screensaver path once KioskModeHelper is initialized.
  32   void GetScreensaverCrxPath();
  33
  34   // Callback to receive the path to the screensaver extension's crx and call
  35   // the unpacker to unpack and load the crx.
  36   void ScreensaverPathCallback(const base::FilePath& screensaver_crx);
  37
  38   // Called back on the UI thread to Setup the screensaver with the now unpacked
  39   // and loaded extension.
  40   void SetupScreensaver(scoped_refptr<extensions::Extension> extension,
  41                         const base::FilePath& extension_base_path);
  42
  43   base::WeakPtrFactory<KioskModeScreensaver> weak_ptr_factory_;
  44
  45   base::FilePath extension_base_path_;
  46
  47   DISALLOW_COPY_AND_ASSIGN(KioskModeScreensaver);
  48 };
  49
  50 void InitializeKioskModeScreensaver();
  51 void ShutdownKioskModeScreensaver();
  52
  53 }  // namespace chromeos
  54
  55 #endif  // CHROME_BROWSER_CHROMEOS_KIOSK_MODE_KIOSK_MODE_SCREENSAVER_H_