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 #include <vector>
  10
  11 #include "ash/shell_observer.h"
  12 #include "base/compiler_specific.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 "chromeos/ime/input_method_manager.h"
  17 #include "components/user_manager/user_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 }
  36
  37 // The Preferences class handles Chrome OS preferences. When the class
  38 // is first initialized, it will initialize the OS settings to what's stored in
  39 // the preferences. These include touchpad settings, etc.
  40 // When the preferences change, we change the settings to reflect the new value.
  41 class Preferences : public PrefServiceSyncableObserver,
  42                     public ash::ShellObserver,
  43                     public user_manager::UserManager::UserSessionStateObserver {
  44  public:
  45   Preferences();
  46   explicit Preferences(
  47       input_method::InputMethodManager* input_method_manager);  // for testing
  48   virtual ~Preferences();
  49
  50   // These method will register the prefs associated with Chrome OS settings.
  51   static void RegisterPrefs(PrefRegistrySimple* registry);
  52   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  53
  54   // This method will initialize Chrome OS settings to values in user prefs.
  55   // |user| is the user owning this preferences.
  56   void Init(Profile* profile, const user_manager::User* user);
  57
  58   void InitUserPrefsForTesting(
  59       PrefServiceSyncable* prefs,
  60       const user_manager::User* user,
  61       scoped_refptr<input_method::InputMethodManager::State> ime_state);
  62   void SetInputMethodListForTesting();
  63
  64  private:
  65   enum ApplyReason {
  66     REASON_INITIALIZATION,
  67     REASON_ACTIVE_USER_CHANGED,
  68     REASON_PREF_CHANGED
  69   };
  70
  71   // Initializes all member prefs.
  72   void InitUserPrefs(PrefServiceSyncable* prefs);
  73
  74   // Callback method for preference changes.
  75   void OnPreferenceChanged(const std::string& pref_name);
  76
  77   // This will set the OS settings when the preference changed or user owning
  78   // these preferences became active. Also this method is called on
  79   // initialization. The reason of call is stored in |reason| parameter.
  80   // |pref_name| keeps name of changed preference in |reason| is
  81   // |REASON_PREF_CHANGED|, otherwise it is empty.
  82   void ApplyPreferences(ApplyReason reason,
  83                         const std::string& pref_name);
  84
  85   // A variant of SetLanguageConfigStringList. You can pass comma-separated
  86   // values. Examples of |value|: "", "Control+space,Hiragana"
  87   void SetLanguageConfigStringListAsCSV(const char* section,
  88                                         const char* name,
  89                                         const std::string& value);
  90
  91   // Restores the user's preferred input method / keyboard layout on signing in.
  92   void SetInputMethodList();
  93
  94   // Updates the initial key repeat delay and key repeat interval following
  95   // current prefs values. We set the delay and interval at once since an
  96   // underlying XKB API requires it.
  97   void UpdateAutoRepeatRate();
  98
  99   // Force natural scroll to on if --enable-natural-scroll-default is specified
 100   // on the cmd line.
 101   void ForceNaturalScrollDefault();
 102
 103   // PrefServiceSyncableObserver implementation.
 104   virtual void OnIsSyncingChanged() override;
 105
 106   // Overriden from ash::ShellObserver.
 107   virtual void OnTouchHudProjectionToggled(bool enabled) override;
 108
 109   // Overriden form user_manager::UserManager::UserSessionStateObserver.
 110   virtual void ActiveUserChanged(
 111       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   // User owning these preferences.
 144   const user_manager::User* user_;
 145
 146   // Whether user is a primary user.
 147   bool user_is_primary_;
 148
 149   // Input Methods state for this user.
 150   scoped_refptr<input_method::InputMethodManager::State> ime_state_;
 151
 152   DISALLOW_COPY_AND_ASSIGN(Preferences);
 153 };
 154
 155 }  // namespace chromeos
 156
 157 #endif  // CHROME_BROWSER_CHROMEOS_PREFERENCES_H_