// Copyright 2022 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef ASH_STYLE_DARK_LIGHT_MODE_CONTROLLER_IMPL_H_ #define ASH_STYLE_DARK_LIGHT_MODE_CONTROLLER_IMPL_H_ #include "ash/ash_export.h" #include "ash/login/ui/login_data_dispatcher.h" #include "ash/public/cpp/login_types.h" #include "ash/public/cpp/style/dark_light_mode_controller.h" #include "ash/public/cpp/wallpaper/wallpaper_controller_observer.h" #include "ash/system/scheduled_feature/scheduled_feature.h" #include "base/observer_list.h" class AccountId; class PrefChangeRegistrar; class PrefRegistrySimple; class PrefService; namespace ash { class ColorModeObserver; class DarkLightModeNudgeController; // Controls the behavior of dark/light mode. Turns on the dark mode at sunset // and off at sunrise if auto schedule is set (custom start and end for // scheduling is not supported). And determine whether to show the educational // nudge for users on login. class ASH_EXPORT DarkLightModeControllerImpl : public DarkLightModeController, public LoginDataDispatcher::Observer, public WallpaperControllerObserver, public ScheduledFeature { public: DarkLightModeControllerImpl(); DarkLightModeControllerImpl(const DarkLightModeControllerImpl&) = delete; DarkLightModeControllerImpl& operator=(const DarkLightModeControllerImpl&) = delete; ~DarkLightModeControllerImpl() override; static DarkLightModeControllerImpl* Get(); static void RegisterProfilePrefs(PrefRegistrySimple* registry); // Enables or disables auto scheduling on dark mode feature. When enabled, // the dark mode will automatically turn on during sunset to sunrise and off // outside that period. void SetAutoScheduleEnabled(bool enabled); // True if dark mode is automatically scheduled to turn on at sunset and off // at sunrise. bool GetAutoScheduleEnabled() const; // Toggles pref |kDarkModeEnabled|. void ToggleColorMode(); // DarkLightModeController: void AddObserver(ColorModeObserver* observer) override; void RemoveObserver(ColorModeObserver* observer) override; bool IsDarkModeEnabled() const override; void SetDarkModeEnabledForTest(bool enabled) override; // LoginDataDispatcher::Observer: void OnOobeDialogStateChanged(OobeDialogState state) override; void OnFocusPod(const AccountId& account_id) override; // WallpaperControllerObserver: void OnWallpaperColorsChanged() override; // ScheduledFeature: void OnActiveUserPrefServiceChanged(PrefService* prefs) override; void OnSessionStateChanged(session_manager::SessionState state) override; void SetShowNudgeForTesting(bool value); protected: // ScheduledFeature: void RefreshFeatureState() override; private: friend class ScopedLightModeAsDefault; friend class ScopedAssistantLightModeAsDefault; // ScheduledFeature: const char* GetFeatureName() const override; // Notifies all the observers on color mode changes and refreshes the system's // colors on this change. void NotifyColorModeChanges(); // Returns a closure which calls `NotifyIfDarkModeChanged` if the dark mode // changed between creation and getting out of scope. base::ScopedClosureRunner GetNotifyOnDarkModeChangeClosure(); void NotifyIfDarkModeChanged(bool old_is_dark_mode_enabled); std::unique_ptr nudge_controller_; // The default color is DARK when the DarkLightMode feature is disabled. But // we can also override it to LIGHT through ScopedLightModeAsDefault. This is // done to help keeping some of the UI elements as LIGHT by default before // launching the DarkLightMode feature. Overriding only if the DarkLightMode // feature is disabled. This variable will be removed once fully launched the // DarkLightMode feature. bool override_light_mode_as_default_ = false; // Temporary field for testing purposes while OOBE WebUI is being migrated. absl::optional is_dark_mode_enabled_in_oobe_for_testing_; OobeDialogState oobe_state_ = OobeDialogState::HIDDEN; // absl::nullopt in case no user pod is focused. absl::optional is_dark_mode_enabled_for_focused_pod_; base::ObserverList observers_; std::unique_ptr pref_change_registrar_; PrefService* active_user_pref_service_ = nullptr; // Not owned. }; } // namespace ash #endif // ASH_STYLE_DARK_LIGHT_MODE_CONTROLLER_IMPL_H_