chrome/browser/chromeos/power/power_prefs.h

   1 // Copyright 2013 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_POWER_POWER_PREFS_H_
   6 #define CHROME_BROWSER_CHROMEOS_POWER_POWER_PREFS_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "content/public/browser/notification_observer.h"
  12 #include "content/public/browser/notification_registrar.h"
  13
  14 class PrefChangeRegistrar;
  15 class Profile;
  16
  17 namespace user_prefs {
  18 class PrefRegistrySyncable;
  19 }
  20
  21 namespace chromeos {
  22
  23 class PowerPolicyController;
  24
  25 // Sends an updated power policy to the |power_policy_controller| whenever one
  26 // of the power-related prefs changes.
  27 class PowerPrefs : public content::NotificationObserver {
  28  public:
  29   explicit PowerPrefs(PowerPolicyController* power_policy_controller);
  30   ~PowerPrefs() override;
  31
  32   // Register power prefs with default values applicable to a user profile.
  33   static void RegisterUserProfilePrefs(
  34       user_prefs::PrefRegistrySyncable* registry);
  35
  36   // Register power prefs with default values applicable to the login profile.
  37   static void RegisterLoginProfilePrefs(
  38       user_prefs::PrefRegistrySyncable* registry);
  39
  40   // content::NotificationObserver:
  41   void Observe(int type,
  42                const content::NotificationSource& source,
  43                const content::NotificationDetails& details) override;
  44
  45   void UpdatePowerPolicyFromPrefs();
  46
  47  private:
  48   friend class PowerPrefsTest;
  49
  50   // Register power prefs whose default values are the same in user profiles and
  51   // the login profile.
  52   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  53
  54   void SetProfile(Profile* profile);
  55
  56   PowerPolicyController* power_policy_controller_;  // Not owned.
  57
  58   content::NotificationRegistrar notification_registrar_;
  59
  60   Profile* profile_;  // Not owned.
  61   scoped_ptr<PrefChangeRegistrar> pref_change_registrar_;
  62
  63   // True while the screen is locked (but not while the login screen is shown).
  64   bool screen_is_locked_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(PowerPrefs);
  67 };
  68
  69 }  // namespace chromeos
  70
  71 #endif  // CHROME_BROWSER_CHROMEOS_POWER_POWER_PREFS_H_