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| 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 #include "base/memory/singleton.h" | |
| 6 #include "chrome/browser/browser_process.h" | |
| 7 #include "chrome/browser/ui/gesture_prefs.h" | |
| 8 #include "chrome/browser/prefs/pref_change_registrar.h" | |
| 9 #include "chrome/browser/prefs/pref_service.h" | |
| 10 #include "chrome/common/chrome_notification_types.h" | |
| 11 #include "chrome/common/pref_names.h" | |
| 12 #include "content/public/browser/notification_observer.h" | |
| 13 #include "ui/aura/gestures/gesture_configuration.h" | |
| 14 | |
| 15 namespace { | |
| 16 | |
| 17 // This class manages gesture configuration preferences. | |
| 18 class GesturePrefsObserverAura : public content::NotificationObserver { | |
| 19 public: | |
| 20 static GesturePrefsObserverAura *GetInstance(); | |
| 21 void RegisterPrefs(PrefService* prefs); | |
| 22 | |
| 23 private: | |
| 24 GesturePrefsObserverAura(); | |
| 25 friend struct DefaultSingletonTraits<GesturePrefsObserverAura>; | |
| 26 virtual ~GesturePrefsObserverAura(); | |
| 27 | |
| 28 // content::NotificationObserver implementation. | |
| 29 virtual void Observe(int type, | |
| 30 const content::NotificationSource& source, | |
| 31 const content::NotificationDetails& details) OVERRIDE; | |
| 32 | |
| 33 private: | |
| 34 void Update(); | |
| 35 | |
| 36 PrefChangeRegistrar registrar_; | |
| 37 | |
| 38 DISALLOW_COPY_AND_ASSIGN(GesturePrefsObserverAura); | |
| 39 }; | |
| 40 | |
| 41 GesturePrefsObserverAura::GesturePrefsObserverAura() { | |
| 42 } | |
| 43 | |
| 44 GesturePrefsObserverAura::~GesturePrefsObserverAura() { | |
| 45 } | |
| 46 | |
| 47 GesturePrefsObserverAura* GesturePrefsObserverAura::GetInstance() { | |
| 48 return Singleton<GesturePrefsObserverAura>::get(); | |
| 49 } | |
| 50 | |
| 51 // The list of prefs we want to observe. | |
| 52 // Note that this collection of settings should correspond to the settings used | |
| 53 // in ui/aura/gestures/gesture_configuration.h | |
| 54 const char* kPrefsToObserve[] = { | |
| 55 prefs::kMaximumSecondsBetweenDoubleClick, | |
| 56 prefs::kMaximumTouchDownDurationInSecondsForClick, | |
| 57 prefs::kMaximumTouchMoveInPixelsForClick, | |
| 58 prefs::kMinFlickSpeedSquared, | |
| 59 prefs::kMinimumTouchDownDurationInSecondsForClick, | |
| 60 }; | |
| 61 | |
| 62 const int kPrefsToObserveLength = arraysize(kPrefsToObserve); | |
| 63 | |
| 64 void GesturePrefsObserverAura::RegisterPrefs(PrefService* ) { | |
| 65 PrefService* local_state = g_browser_process->local_state(); | |
| 66 | |
| 67 local_state->RegisterDoublePref( | |
| 68 prefs::kMaximumSecondsBetweenDoubleClick, 0.7); | |
| 69 local_state->RegisterDoublePref( | |
| 70 prefs::kMaximumTouchDownDurationInSecondsForClick, 0.8); | |
| 71 local_state->RegisterDoublePref( | |
| 72 prefs::kMaximumTouchMoveInPixelsForClick, 20); | |
| 73 local_state->RegisterDoublePref( | |
| 74 prefs::kMinFlickSpeedSquared, 550.f*550.f); | |
| 75 local_state->RegisterDoublePref( | |
| 76 prefs::kMinimumTouchDownDurationInSecondsForClick, 0.01); | |
| 77 | |
| 78 registrar_.Init(local_state); | |
| 79 if (local_state) { | |
| 80 for (int i = 0; i < kPrefsToObserveLength; ++i) | |
| 81 registrar_.Add(kPrefsToObserve[i], this); | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 void GesturePrefsObserverAura::Update() { | |
| 86 PrefService* local_state = g_browser_process->local_state(); | |
| 87 | |
| 88 aura::GestureConfiguration::set_max_seconds_between_double_click( | |
| 89 local_state->GetDouble(prefs::kMaximumSecondsBetweenDoubleClick)); | |
| 90 aura::GestureConfiguration::set_max_touch_down_duration_in_seconds_for_click( | |
| 91 local_state->GetDouble(prefs::kMaximumTouchDownDurationInSecondsForClick)); | |
| 92 aura::GestureConfiguration::set_max_touch_move_in_pixels_for_click( | |
| 93 local_state->GetDouble(prefs::kMaximumTouchMoveInPixelsForClick)); | |
| 94 aura::GestureConfiguration::set_min_flick_speed_squared( | |
| 95 local_state->GetDouble(prefs::kMinFlickSpeedSquared)); | |
| 96 aura::GestureConfiguration::set_min_touch_down_duration_in_seconds_for_click( | |
| 97 local_state->GetDouble(prefs::kMinimumTouchDownDurationInSecondsForClick)); | |
| 98 } | |
| 99 | |
| 100 void GesturePrefsObserverAura::Observe(int type, | |
| 101 const content::NotificationSource& source, | |
| 102 const content::NotificationDetails& details) { | |
| 103 Update(); | |
| 104 } | |
| 105 | |
| 106 } // namespace | |
| 107 | |
| 108 void GesturePrefsRegisterPrefs(PrefService* prefs) { | |
| 109 GesturePrefsObserverAura::GetInstance()->RegisterPrefs(prefs); | |
| 110 } | |
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Chromium Code Reviews
Issue 9562013:
Revert 124433 - Adding persistance for gesture recognition parms. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/