chrome/browser/chromeos/preferences.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_PREFERENCES_H_
   6 #define CHROME_BROWSER_CHROMEOS_PREFERENCES_H_
   7
   8 #include <string>
   9
  10 #include "ash/shell_observer.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/prefs/pref_change_registrar.h"
  13 #include "base/prefs/pref_member.h"
  14 #include "chrome/browser/chromeos/language_preferences.h"
  15 #include "chrome/browser/prefs/pref_service_syncable_observer.h"
  16 #include "components/user_manager/user_manager.h"
  17 #include "ui/base/ime/chromeos/input_method_manager.h"
  18
  19 class PrefRegistrySimple;
  20 class PrefService;
  21 class PrefServiceSyncable;
  22
  23 class TracingManager;
  24
  25 namespace user_prefs {
  26 class PrefRegistrySyncable;
  27 }
  28
  29 namespace chromeos {
  30
  31 class User;
  32
  33 namespace input_method {
  34 class InputMethodManager;
  35 class InputMethodSyncer;
  36 }
  37
  38 // The Preferences class handles Chrome OS preferences. When the class
  39 // is first initialized, it will initialize the OS settings to what's stored in
  40 // the preferences. These include touchpad settings, etc.
  41 // When the preferences change, we change the settings to reflect the new value.
  42 class Preferences : public PrefServiceSyncableObserver,
  43                     public ash::ShellObserver,
  44                     public user_manager::UserManager::UserSessionStateObserver {
  45  public:
  46   Preferences();
  47   explicit Preferences(
  48       input_method::InputMethodManager* input_method_manager);  // for testing
  49   ~Preferences() override;
  50
  51   // These method will register the prefs associated with Chrome OS settings.
  52   static void RegisterPrefs(PrefRegistrySimple* registry);
  53   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  54
  55   // This method will initialize Chrome OS settings to values in user prefs.
  56   // |user| is the user owning this preferences.
  57   void Init(Profile* profile, const user_manager::User* user);
  58
  59   void InitUserPrefsForTesting(
  60       PrefServiceSyncable* prefs,
  61       const user_manager::User* user,
  62       scoped_refptr<input_method::InputMethodManager::State> ime_state);
  63   void SetInputMethodListForTesting();
  64
  65  private:
  66   enum ApplyReason {
  67     REASON_INITIALIZATION,
  68     REASON_ACTIVE_USER_CHANGED,
  69     REASON_PREF_CHANGED
  70   };
  71
  72   // Initializes all member prefs.
  73   void InitUserPrefs(PrefServiceSyncable* prefs);
  74
  75   // Callback method for preference changes.
  76   void OnPreferenceChanged(const std::string& pref_name);
  77
  78   // This will set the OS settings when the preference changed or the user
  79   // owning these preferences became active. Also this method is called on
  80   // initialization. The reason of the call is stored as the |reason| parameter.
  81   // |pref_name| is the name of the changed preference if the |reason| is
  82   // |REASON_PREF_CHANGED|, otherwise it is empty.
  83   void ApplyPreferences(ApplyReason reason,
  84                         const std::string& pref_name);
  85
  86   // A variant of SetLanguageConfigStringList. You can pass comma-separated
  87   // values. Examples of |value|: "", "Control+space,Hiragana"
  88   void SetLanguageConfigStringListAsCSV(const char* section,
  89                                         const char* name,
  90                                         const std::string& value);
  91
  92   // Restores the user's preferred input method / keyboard layout on signing in.
  93   void SetInputMethodList();
  94
  95   // Updates the initial key repeat delay and key repeat interval following
  96   // current prefs values. We set the delay and interval at once since an
  97   // underlying XKB API requires it.
  98   void UpdateAutoRepeatRate();
  99
 100   // Force natural scroll to on if --enable-natural-scroll-default is specified
 101   // on the cmd line.
 102   void ForceNaturalScrollDefault();
 103
 104   // PrefServiceSyncableObserver implementation.
 105   void OnIsSyncingChanged() override;
 106
 107   // Overriden from ash::ShellObserver.
 108   void OnTouchHudProjectionToggled(bool enabled) override;
 109
 110   // Overriden form user_manager::UserManager::UserSessionStateObserver.
 111   void ActiveUserChanged(const user_manager::User* active_user) override;
 112
 113   void ActivateInputMethods(const user_manager::User* active_user);
 114
 115   PrefServiceSyncable* prefs_;
 116
 117   input_method::InputMethodManager* input_method_manager_;
 118   scoped_ptr<TracingManager> tracing_manager_;
 119
 120   BooleanPrefMember performance_tracing_enabled_;
 121   BooleanPrefMember tap_to_click_enabled_;
 122   BooleanPrefMember tap_dragging_enabled_;
 123   BooleanPrefMember three_finger_click_enabled_;
 124   BooleanPrefMember natural_scroll_;
 125   BooleanPrefMember vert_edge_scroll_enabled_;
 126   IntegerPrefMember speed_factor_;
 127   IntegerPrefMember mouse_sensitivity_;
 128   IntegerPrefMember touchpad_sensitivity_;
 129   BooleanPrefMember primary_mouse_button_right_;
 130   FilePathPrefMember download_default_directory_;
 131   BooleanPrefMember touch_hud_projection_enabled_;
 132
 133   // Input method preferences.
 134   StringPrefMember preload_engines_;
 135   StringPrefMember current_input_method_;
 136   StringPrefMember previous_input_method_;
 137   StringPrefMember enabled_extension_imes_;
 138
 139   BooleanPrefMember xkb_auto_repeat_enabled_;
 140   IntegerPrefMember xkb_auto_repeat_delay_pref_;
 141   IntegerPrefMember xkb_auto_repeat_interval_pref_;
 142
 143   BooleanPrefMember wake_on_wifi_ssid_;
 144
 145   PrefChangeRegistrar pref_change_registrar_;
 146
 147   // User owning these preferences.
 148   const user_manager::User* user_;
 149
 150   // Whether user is a primary user.
 151   bool user_is_primary_;
 152
 153   // Input Methods state for this user.
 154   scoped_refptr<input_method::InputMethodManager::State> ime_state_;
 155
 156   scoped_ptr<input_method::InputMethodSyncer> input_method_syncer_;
 157
 158   DISALLOW_COPY_AND_ASSIGN(Preferences);
 159 };
 160
 161 }  // namespace chromeos
 162
 163 #endif  // CHROME_BROWSER_CHROMEOS_PREFERENCES_H_