// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_SHELL_H_
#define ASH_SHELL_H_
#include <memory>
#include <utility>
#include <vector>
#include "ash/accelerators/modifier_key_combo_recorder.h"
#include "ash/accessibility/accessibility_event_handler_manager.h"
#include "ash/ash_export.h"
#include "ash/constants/ash_features.h"
#include "ash/metrics/login_unlock_throughput_recorder.h"
#include "ash/metrics/unlock_throughput_recorder.h"
#include "ash/public/cpp/auth/active_session_auth_controller.h"
#include "ash/public/cpp/session/session_observer.h"
#include "ash/public/cpp/shelf_types.h"
#include "ash/public/cpp/system_sounds_delegate.h"
#include "ash/public/cpp/tab_strip_delegate.h"
#include "ash/quick_pair/keyed_service/quick_pair_mediator.h"
#include "ash/system/input_device_settings/touchscreen_metrics_recorder.h"
#include "ash/system/toast/system_nudge_pause_manager_impl.h"
#include "ash/wm/coral/coral_controller.h"
#include "ash/wm/system_modal_container_event_filter_delegate.h"
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/scoped_observation_traits.h"
#include "chromeos/ui/frame/multitask_menu/multitask_menu_nudge_controller.h"
#include "ui/aura/window.h"
#include "ui/base/ui_base_types.h"
#include "ui/display/screen.h"
#include "ui/events/event_target.h"
#include "ui/wm/core/cursor_manager.h"
#include "ui/wm/public/activation_change_observer.h"
class PrefService;
namespace aura {
class RootWindow;
class Window;
} // namespace aura
namespace chromeos {
class ImmersiveContext;
class SnapController;
} // namespace chromeos
namespace dbus {
class Bus;
}
namespace display {
class DisplayChangeObserver;
class DisplayConfigurator;
class DisplayManager;
class DisplayPortObserver;
class NativeDisplayDelegate;
} // namespace display
namespace gfx {
class Point;
} // namespace gfx
namespace keyboard {
class KeyboardUIFactory;
}
namespace ui {
class ContextFactory;
class KeyboardCapability;
class UserActivityPowerManagerNotifier;
} // namespace ui
namespace views {
class NonClientFrameView;
class Widget;
namespace corewm {
class TooltipController;
}
} // namespace views
namespace wm {
class AcceleratorFilter;
class ActivationClient;
class CompoundEventFilter;
class FocusController;
class ShadowController;
class VisibilityController;
class WindowModalityController;
} // namespace wm
namespace ash {
class AcceleratorControllerImpl;
class AcceleratorKeycodeLookupCache;
class AcceleratorLookup;
class AcceleratorPrefs;
class AcceleratorTracker;
class AccessibilityController;
class AccessibilityDelegate;
class AccessibilityEventHandlerManager;
class AccessibilityFocusRingControllerImpl;
class AdaptiveChargingController;
class AmbientController;
class AnchoredNudgeManagerImpl;
class AnnotatorController;
class AppListControllerImpl;
class AppListFeatureUsageMetrics;
class AshAcceleratorConfiguration;
class AshColorProvider;
class AshDBusServices;
class AshFocusRules;
class AshTouchTransformController;
class AssistantControllerImpl;
class AudioEffectsController;
class AutoclickController;
class AutozoomControllerImpl;
class BackGestureEventHandler;
class BacklightsForcedOffSetter;
class BatterySaverController;
class BirchModel;
class BirchPrivacyNudgeController;
class BluetoothDeviceStatusUiHandler;
class BluetoothNotificationController;
class BluetoothStateCache;
class BootingAnimationController;
class BrightnessControlDelegate;
class CalendarController;
class CameraEffectsController;
class CaptureModeController;
class ColorPaletteController;
class ControlVHistogramRecorder;
class CoralController;
class CrosDisplayConfig;
class DarkLightModeControllerImpl;
class DeskProfilesDelegate;
class DesksController;
class DetachableBaseHandler;
class DetachableBaseNotificationController;
class DisplayAlignmentController;
class DisplayColorManager;
class NativeCursorManagerAsh;
class DisplayConfigurationController;
class DisplayConfigurationObserver;
class DisplayErrorObserver;
class DisplayHighlightController;
class DisplayPerformanceModeController;
class DisplayPrefs;
class DisplayShutdownObserver;
class DisplaySpeakerController;
class DockedMagnifierController;
class DragDropController;
class EventClientImpl;
class EventRewriterControllerImpl;
class EventTransformationHandler;
class FirmwareUpdateManager;
class FirmwareUpdateNotificationController;
class FloatController;
class FocusCycler;
class FocusModeController;
class FrameThrottlingController;
class FullscreenMagnifierController;
class GameDashboardController;
class GeolocationController;
class GlanceablesController;
class ColorEnhancementController;
class HoldingSpaceController;
class HotspotIconAnimation;
class HotspotInfoCache;
class HumanPresenceOrientationController;
class ImeControllerImpl;
class InformedRestoreController;
class InputDeviceKeyAliasManager;
class InputDeviceSettingsControllerImpl;
class InputDeviceSettingsDispatcher;
class InputDeviceTracker;
class InSessionAuthDialogControllerImpl;
class WebAuthNDialogController;
class WebAuthNDialogControllerImpl;
class KeyAccessibilityEnabler;
class KeyboardBacklightColorController;
class KeyboardBrightnessControlDelegate;
class KeyboardControllerImpl;
class KeyboardModifierMetricsRecorder;
class LaserPointerController;
class LobsterController;
class LocalAuthenticationRequestController;
class LocaleUpdateControllerImpl;
class LockStateController;
class LoginScreenController;
class LoginUnlockThroughputRecorder;
class LogoutConfirmationController;
class MediaControllerImpl;
class MediaNotificationProvider;
class MessageCenterAshImpl;
class MessageCenterController;
class MouseCursorEventFilter;
class MouseKeysController;
class MruWindowTracker;
class MultiDeviceNotificationPresenter;
class MultiDisplayMetricsController;
class NearbyShareControllerImpl;
class NearbyShareDelegate;
class NightLightControllerImpl;
class OcclusionTrackerPauser;
class OverviewController;
class ParentAccessController;
class PartialMagnifierController;
class PciePeripheralNotificationController;
class PeripheralBatteryListener;
class PeripheralBatteryNotifier;
class PersistentWindowController;
class PickerController;
class PipController;
class PolicyRecommendationRestorer;
class PostLoginGlanceablesMetricsRecorder;
class PowerButtonController;
class PowerEventObserver;
class PowerPrefs;
class PrivacyHubController;
class PrivacyScreenController;
class ProjectingObserver;
class ProjectorControllerImpl;
class RapidKeySequenceRecorder;
class RasterScaleController;
class RefreshRateController;
class ResizeShadowController;
class ResolutionNotificationController;
class RgbKeyboardManager;
class RootWindowController;
class SavedDeskController;
class SavedDeskDelegate;
class TabClusterUIController;
class TabStripDelegate;
class UsbPeripheralNotificationController;
class ScreenLayoutObserver;
class ScreenOrientationController;
class ScreenPinningController;
class ScreenPositionController;
class ScreenSwitchCheckController;
class SessionControllerImpl;
class FeatureDiscoveryDurationReporterImpl;
class ShelfConfig;
class ShelfController;
class ShelfWindowWatcher;
class ShellDelegate;
struct ShellInitParams;
class ShellObserver;
class ShortcutInputHandler;
class ShutdownControllerImpl;
class SmsObserver;
class SnapGroupController;
class SnoopingProtectionController;
class StickyKeysController;
class SystemGestureEventFilter;
class SystemModalContainerEventFilter;
class SystemNotificationController;
class SystemNudgePauseManagerImpl;
class SystemSoundsDelegate;
class SystemTrayModel;
class SystemTrayNotifier;
class TabletModeController;
class ToastManagerImpl;
class ToplevelWindowEventHandler;
class ClipboardHistoryControllerImpl;
class TouchDevicesController;
class TrayAction;
class UserEducationController;
class UserMetricsRecorder;
class VideoActivityNotifier;
class VideoDetector;
class WallpaperControllerImpl;
class WindowCycleController;
class WindowRestoreController;
class WindowTilingController;
class WindowTreeHostManager;
class WmModeController;
class ArcInputMethodBoundsTracker;
class MultiCaptureServiceClient;
enum class LoginStatus;
namespace api {
class TasksController;
} // namespace api
namespace diagnostics {
class DiagnosticsLogController;
} // namespace diagnostics
namespace federated {
class FederatedServiceControllerImpl;
} // namespace federated
namespace quick_pair {
class Mediator;
} // namespace quick_pair
namespace curtain {
class SecurityCurtainController;
} // namespace curtain
// Shell is a singleton object that presents the Shell API and implements the
// RootWindow's delegate interface.
//
// Upon creation, the Shell sets itself as the RootWindow's delegate, which
// takes ownership of the Shell.
class ASH_EXPORT Shell : public SessionObserver,
public SystemModalContainerEventFilterDelegate,
public ui::EventTarget,
public ::wm::ActivationChangeObserver {
public:
typedef std::vector<RootWindowController*> RootWindowControllerList;
Shell(const Shell&) = delete;
Shell& operator=(const Shell&) = delete;
// Creates the single Shell instance.
static Shell* CreateInstance(ShellInitParams init_params);
// Should never be called before |CreateInstance()|.
static Shell* Get();
// Returns true if the ash shell has been instantiated.
static bool HasInstance();
static void DeleteInstance();
// Returns the root window controller for the primary root window.
// TODO(oshima): move this to |RootWindowController|
static RootWindowController* GetPrimaryRootWindowController();
// Returns the RootWindowController for the given display id. If there
// is no display for |display_id|, null is returned.
static RootWindowController* GetRootWindowControllerWithDisplayId(
int64_t display_id);
// Returns the root Window for the given display id. If there is no display
// for |display_id| null is returned.
static aura::Window* GetRootWindowForDisplayId(int64_t display_id);
// Returns all root window controllers.
// TODO(oshima): move this to |RootWindowController|
static RootWindowControllerList GetAllRootWindowControllers();
// Returns the primary root Window. The primary root Window is the one that
// has a launcher.
static aura::Window* GetPrimaryRootWindow();
// Sets the root window that newly created windows should be added to.
static void SetRootWindowForNewWindows(aura::Window* root);
// Returns the root window that newly created windows should be added to.
// Value can be temporarily overridden using
// display::ScopedDisplayForNewWindows. NOTE: this returns the root, newly
// created window should be added to the appropriate container in the returned
// window.
static aura::Window* GetRootWindowForNewWindows();
// Returns all root windows.
static aura::Window::Windows GetAllRootWindows();
static aura::Window* GetContainer(aura::Window* root_window,
int container_id);
static const aura::Window* GetContainer(const aura::Window* root_window,
int container_id);
// If a system-modal dialog window is currently open, returns the ID of the
// system modal window container that contains the window.
// If no system-modal dialogs are open it returns -1.
static int GetOpenSystemModalWindowContainerId();
// Returns true if a system-modal dialog window is currently open.
static bool IsSystemModalWindowOpen();
// Track/Untrack InputMethod bounds.
void TrackInputMethodBounds(ArcInputMethodBoundsTracker* tracker);
void UntrackTrackInputMethodBounds(ArcInputMethodBoundsTracker* tracker);
// Creates a default views::NonClientFrameView for use by windows in the
// Ash environment.
std::unique_ptr<views::NonClientFrameView> CreateDefaultNonClientFrameView(
views::Widget* widget);
// Called when a casting session is started or stopped.
void OnCastingSessionStartedOrStopped(bool started);
// Called when a root window is created.
void OnRootWindowAdded(aura::Window* root_window);
// Called when a root window is about to shutdown.
void OnRootWindowWillShutdown(aura::Window* root_window);
// Called when dictation is activated.
void OnDictationStarted();
// Called when dictation is ended.
void OnDictationEnded();
// DEPRECATED. Use display::Screen::GetScreen()->InTabletMode() instead.
// TODO(crbug.com/40942452): Remove this.
//
// Returns whether the device is currently in tablet mode.
bool IsInTabletMode() const;
// Tests if TabletModeWindowManager is not enabled, and if
// TabletModeController is not currently setting a display rotation. Or if
// the |resolution_notification_controller_| is not showing its confirmation
// dialog. If true then changes to display settings can be saved.
bool ShouldSaveDisplaySettings();
AcceleratorControllerImpl* accelerator_controller() {
return accelerator_controller_.get();
}
wm::AcceleratorFilter* accelerator_filter() {
return accelerator_filter_.get();
}
AcceleratorPrefs* accelerator_prefs() { return accelerator_prefs_.get(); }
AcceleratorTracker* accelerator_tracker() {
return accelerator_tracker_.get();
}
AccessibilityController* accessibility_controller() {
return accessibility_controller_.get();
}
AccessibilityDelegate* accessibility_delegate() {
return accessibility_delegate_.get();
}
AccessibilityFocusRingControllerImpl* accessibility_focus_ring_controller() {
return accessibility_focus_ring_controller_.get();
}
::wm::ActivationClient* activation_client();
AppListControllerImpl* app_list_controller() {
return app_list_controller_.get();
}
AdaptiveChargingController* adaptive_charging_controller() {
return adaptive_charging_controller_.get();
}
AmbientController* ambient_controller() { return ambient_controller_.get(); }
AnchoredNudgeManagerImpl* anchored_nudge_manager() {
return anchored_nudge_manager_.get();
}
AshAcceleratorConfiguration* ash_accelerator_configuration() {
return ash_accelerator_configuration_.get();
}
AcceleratorLookup* accelerator_lookup() { return accelerator_lookup_.get(); }
AssistantControllerImpl* assistant_controller() {
return assistant_controller_.get();
}
AudioEffectsController* audio_effects_controller() {
return audio_effects_controller_.get();
}
AutoclickController* autoclick_controller() {
return autoclick_controller_.get();
}
AutozoomControllerImpl* autozoom_controller() {
return autozoom_controller_.get();
}
BacklightsForcedOffSetter* backlights_forced_off_setter() {
return backlights_forced_off_setter_.get();
}
BatterySaverController* battery_saver_controller() {
return battery_saver_controller_.get();
}
BirchModel* birch_model() { return birch_model_.get(); }
BirchPrivacyNudgeController* birch_privacy_nudge_controller() {
return birch_privacy_nudge_controller_.get();
}
BluetoothStateCache* bluetooth_state_cache() {
return bluetooth_state_cache_.get();
}
BootingAnimationController* booting_animation_controller() {
return booting_animation_controller_.get();
}
BrightnessControlDelegate* brightness_control_delegate() {
return brightness_control_delegate_.get();
}
CalendarController* calendar_controller() {
return calendar_controller_.get();
}
CameraEffectsController* camera_effects_controller() {
return camera_effects_controller_.get();
}
ColorPaletteController* color_palette_controller() {
return color_palette_controller_.get();
}
CrosDisplayConfig* cros_display_config() {
return cros_display_config_.get();
}
::wm::CursorManager* cursor_manager() { return cursor_manager_.get(); }
curtain::SecurityCurtainController& security_curtain_controller() {
return *security_curtain_controller_;
}
DarkLightModeControllerImpl* dark_light_mode_controller() {
return dark_light_mode_controller_.get();
}
DesksController* desks_controller() { return desks_controller_.get(); }
SavedDeskController* saved_desk_controller() {
return saved_desk_controller_.get();
}
SavedDeskDelegate* saved_desk_delegate() {
return saved_desk_delegate_.get();
}
DetachableBaseHandler* detachable_base_handler() {
return detachable_base_handler_.get();
}
display::DisplayManager* display_manager() { return display_manager_.get(); }
DisplayPrefs* display_prefs() { return display_prefs_.get(); }
DisplayConfigurationController* display_configuration_controller() {
return display_configuration_controller_.get();
}
DisplayAlignmentController* display_alignment_controller() {
return display_alignment_controller_.get();
}
display::DisplayConfigurator* display_configurator();
RefreshRateController* refresh_rate_controller() {
return refresh_rate_controller_.get();
}
DisplayColorManager* display_color_manager() {
return display_color_manager_.get();
}
DisplayErrorObserver* display_error_observer() {
return display_error_observer_.get();
}
ProjectingObserver* projecting_observer() {
return projecting_observer_.get();
}
DisplayHighlightController* display_highlight_controller() {
return display_highlight_controller_.get();
}
DisplayPerformanceModeController* display_performance_mode_controller() {
return display_performance_mode_controller_.get();
}
DockedMagnifierController* docked_magnifier_controller() {
return docked_magnifier_controller_.get();
}
::wm::CompoundEventFilter* env_filter() { return env_filter_.get(); }
EventRewriterControllerImpl* event_rewriter_controller() {
return event_rewriter_controller_.get();
}
InputDeviceKeyAliasManager* input_device_key_alias_manager() {
return input_device_key_alias_manager_.get();
}
InputDeviceSettingsControllerImpl* input_device_settings_controller() {
return input_device_settings_controller_.get();
}
InputDeviceTracker* input_device_tracker() {
return input_device_tracker_.get();
}
EventClientImpl* event_client() { return event_client_.get(); }
EventTransformationHandler* event_transformation_handler() {
return event_transformation_handler_.get();
}
federated::FederatedServiceControllerImpl* federated_service_controller() {
return federated_service_controller_.get();
}
FirmwareUpdateNotificationController*
firmware_update_notification_controller() {
return firmware_update_notification_controller_.get();
}
FloatController* float_controller() { return float_controller_.get(); }
::wm::FocusController* focus_controller() { return focus_controller_.get(); }
AshFocusRules* focus_rules() { return focus_rules_; }
FocusCycler* focus_cycler() { return focus_cycler_.get(); }
FocusModeController* focus_mode_controller() {
return focus_mode_controller_.get();
}
FullscreenMagnifierController* fullscreen_magnifier_controller() {
return fullscreen_magnifier_controller_.get();
}
GameDashboardController* game_dashboard_controller() {
return game_dashboard_controller_.get();
}
GeolocationController* geolocation_controller() {
return geolocation_controller_.get();
}
GlanceablesController* glanceables_controller() {
return glanceables_controller_.get();
}
PostLoginGlanceablesMetricsRecorder*
post_login_glanceables_metrics_reporter() {
return post_login_glanceables_metrics_reporter_.get();
}
ColorEnhancementController* color_enhancement_controller() {
return color_enhancement_controller_.get();
}
HotspotIconAnimation* hotspot_icon_animation() {
return hotspot_icon_animation_.get();
}
HotspotInfoCache* hotspot_info_cache() { return hotspot_info_cache_.get(); }
HumanPresenceOrientationController* human_presence_orientation_controller() {
return human_presence_orientation_controller_.get();
}
ImeControllerImpl* ime_controller() { return ime_controller_.get(); }
WebAuthNDialogController* webauthn_dialog_controller();
InSessionAuthDialogControllerImpl* in_session_auth_dialog_controller() {
return in_session_auth_dialog_controller_.get();
}
KeyAccessibilityEnabler* key_accessibility_enabler() {
return key_accessibility_enabler_.get();
}
KeyboardBacklightColorController* keyboard_backlight_color_controller() {
return keyboard_backlight_color_controller_.get();
}
KeyboardBrightnessControlDelegate* keyboard_brightness_control_delegate() {
return keyboard_brightness_control_delegate_.get();
}
ui::KeyboardCapability* keyboard_capability() {
return keyboard_capability_.get();
}
KeyboardControllerImpl* keyboard_controller() {
return keyboard_controller_.get();
}
KeyboardModifierMetricsRecorder* keyboard_modifier_metrics_recorder() {
return keyboard_modifier_metrics_recorder_.get();
}
TouchscreenMetricsRecorder* touchscreen_metrics_recorder() {
return touchscreen_metrics_recorder_.get();
}
LaserPointerController* laser_pointer_controller() {
return laser_pointer_controller_.get();
}
LobsterController* lobster_controller() { return lobster_controller_.get(); }
LocaleUpdateControllerImpl* locale_update_controller() {
return locale_update_controller_.get();
}
LocalAuthenticationRequestController*
local_authentication_request_controller() {
return local_authentication_request_controller_.get();
}
ActiveSessionAuthController* active_session_auth_controller() {
return active_session_auth_controller_.get();
}
LoginScreenController* login_screen_controller() {
return login_screen_controller_.get();
}
LockStateController* lock_state_controller() {
return lock_state_controller_.get();
}
LogoutConfirmationController* logout_confirmation_controller() {
return logout_confirmation_controller_.get();
}
MediaControllerImpl* media_controller() { return media_controller_.get(); }
MessageCenterAshImpl* message_center_ash_impl() {
return message_center_ash_impl_.get();
}
MessageCenterController* message_center_controller() {
return message_center_controller_.get();
}
MouseCursorEventFilter* mouse_cursor_filter() {
return mouse_cursor_filter_.get();
}
MouseKeysController* mouse_keys_controller() {
return mouse_keys_controller_.get();
}
MruWindowTracker* mru_window_tracker() { return mru_window_tracker_.get(); }
MultiDeviceNotificationPresenter* multidevice_notification_presenter() {
return multidevice_notification_presenter_.get();
}
MultiDisplayMetricsController* multi_display_metrics_controller() {
return multi_display_metrics_controller_.get();
}
NearbyShareControllerImpl* nearby_share_controller() {
return nearby_share_controller_.get();
}
NearbyShareDelegate* nearby_share_delegate() {
return nearby_share_delegate_.get();
}
NightLightControllerImpl* night_light_controller() {
return night_light_controller_.get();
}
ParentAccessController* parent_access_controller() {
return parent_access_controller_.get();
}
PartialMagnifierController* partial_magnifier_controller() {
return partial_magnifier_controller_.get();
}
PeripheralBatteryListener* peripheral_battery_listener() {
return peripheral_battery_listener_.get();
}
PickerController* picker_controller() { return picker_controller_.get(); }
InformedRestoreController* informed_restore_controller() {
return informed_restore_controller_.get();
}
PipController* pip_controller() { return pip_controller_.get(); }
PolicyRecommendationRestorer* policy_recommendation_restorer() {
return policy_recommendation_restorer_.get();
}
PowerButtonController* power_button_controller() {
return power_button_controller_.get();
}
PowerEventObserver* power_event_observer() {
return power_event_observer_.get();
}
PrivacyHubController* privacy_hub_controller() {
return privacy_hub_controller_.get();
}
PrivacyScreenController* privacy_screen_controller() {
return privacy_screen_controller_.get();
}
quick_pair::Mediator* quick_pair_mediator() {
return quick_pair_mediator_.get();
}
MultiCaptureServiceClient* multi_capture_service_client() {
return multi_capture_service_client_.get();
}
RasterScaleController* raster_scale_controller() {
return raster_scale_controller_.get();
}
ResizeShadowController* resize_shadow_controller() {
return resize_shadow_controller_.get();
}
ResolutionNotificationController* resolution_notification_controller() {
return resolution_notification_controller_.get();
}
RgbKeyboardManager* rgb_keyboard_manager() {
return rgb_keyboard_manager_.get();
}
ScreenLayoutObserver* screen_layout_observer() {
return screen_layout_observer_.get();
}
ScreenOrientationController* screen_orientation_controller() {
return screen_orientation_controller_.get();
}
ScreenPinningController* screen_pinning_controller() {
return screen_pinning_controller_.get();
}
ScreenSwitchCheckController* screen_switch_check_controller() {
return screen_switch_check_controller_.get();
}
SessionControllerImpl* session_controller() {
return session_controller_.get();
}
SnapGroupController* snap_group_controller() {
return snap_group_controller_.get();
}
FeatureDiscoveryDurationReporterImpl* feature_discover_reporter() {
return feature_discover_reporter_.get();
}
::wm::ShadowController* shadow_controller() {
return shadow_controller_.get();
}
ShelfConfig* shelf_config() { return shelf_config_.get(); }
ShelfController* shelf_controller() { return shelf_controller_.get(); }
ShellDelegate* shell_delegate() { return shell_delegate_.get(); }
ShortcutInputHandler* shortcut_input_handler() {
return shortcut_input_handler_.get();
}
ModifierKeyComboRecorder* modifier_key_combo_recorder() {
return modifier_key_combo_recorder_.get();
}
RapidKeySequenceRecorder* rapid_key_sequence_recorder() {
return rapid_key_sequence_recorder_.get();
}
ShutdownControllerImpl* shutdown_controller() {
return shutdown_controller_.get();
}
SnoopingProtectionController* snooping_protection_controller() {
return snooping_protection_controller_.get();
}
StickyKeysController* sticky_keys_controller() {
return sticky_keys_controller_.get();
}
SystemNotificationController* system_notification_controller() {
return system_notification_controller_.get();
}
SystemNudgePauseManagerImpl* system_nudge_pause_manager() {
return system_nudge_pause_manager_.get();
}
SystemTrayModel* system_tray_model() { return system_tray_model_.get(); }
SystemTrayNotifier* system_tray_notifier() {
return system_tray_notifier_.get();
}
SystemSoundsDelegate* system_sounds_delegate() {
return system_sounds_delegate_.get();
}
TabClusterUIController* tab_cluster_ui_controller() const {
return tab_cluster_ui_controller_.get();
}
TabletModeController* tablet_mode_controller() const {
return tablet_mode_controller_.get();
}
TabStripDelegate* tab_strip_delegate() const {
return tab_strip_delegate_.get();
}
ToastManagerImpl* toast_manager() { return toast_manager_.get(); }
views::corewm::TooltipController* tooltip_controller() {
return tooltip_controller_.get();
}
ClipboardHistoryControllerImpl* clipboard_history_controller() {
return clipboard_history_controller_.get();
}
TouchDevicesController* touch_devices_controller() {
return touch_devices_controller_.get();
}
AshTouchTransformController* touch_transformer_controller() {
return touch_transformer_controller_.get();
}
TrayAction* tray_action() { return tray_action_.get(); }
UserMetricsRecorder* metrics() { return user_metrics_recorder_.get(); }
VideoDetector* video_detector() { return video_detector_.get(); }
WallpaperControllerImpl* wallpaper_controller() {
return wallpaper_controller_.get();
}
WindowCycleController* window_cycle_controller() {
return window_cycle_controller_.get();
}
WindowRestoreController* window_restore_controller() {
return window_restore_controller_.get();
}
WindowTilingController* window_tiling_controller() {
return window_tiling_controller_.get();
}
OverviewController* overview_controller() {
return overview_controller_.get();
}
WindowTreeHostManager* window_tree_host_manager() {
return window_tree_host_manager_.get();
}
BackGestureEventHandler* back_gesture_event_handler() {
return back_gesture_event_handler_.get();
}
ui::EventHandler* shell_tab_handler() { return shell_tab_handler_.get(); }
ToplevelWindowEventHandler* toplevel_window_event_handler() {
return toplevel_window_event_handler_.get();
}
AshColorProvider* ash_color_provider() { return ash_color_provider_.get(); }
PrefService* local_state() { return local_state_; }
FrameThrottlingController* frame_throttling_controller() {
return frame_throttling_controller_.get();
}
ProjectorControllerImpl* projector_controller() {
return projector_controller_.get();
}
AnnotatorController* annotator_controller() {
return annotator_controller_.get();
}
PciePeripheralNotificationController*
pcie_peripheral_notification_controller() {
return pcie_peripheral_notification_controller_.get();
}
UsbPeripheralNotificationController*
usb_peripheral_notification_controller() {
return usb_peripheral_notification_controller_.get();
}
OcclusionTrackerPauser* occlusion_tracker_pauser() {
return occlusion_tracker_pauser_.get();
}
CoralController* coral_controller() { return coral_controller_.get(); }
DragDropController* drag_drop_controller() {
return drag_drop_controller_.get();
}
// Does the primary display have status area?
bool HasPrimaryStatusArea();
// Starts the animation that occurs on first login.
void DoInitialWorkspaceAnimation();
void SetLargeCursorSizeInDip(int large_cursor_size_in_dip);
// Sets a custom color for the cursor.
void SetCursorColor(SkColor cursor_color);
// Updates cursor compositing on/off. Native cursor is disabled when cursor
// compositing is enabled, and vice versa.
void UpdateCursorCompositingEnabled();
// Force setting compositing on/off without checking dependency.
void SetCursorCompositingEnabled(bool enabled);
// Shows the context menu for the wallpaper or shelf at |location_in_screen|.
void ShowContextMenu(const gfx::Point& location_in_screen,
ui::MenuSourceType source_type);
void AddShellObserver(ShellObserver* observer);
void RemoveShellObserver(ShellObserver* observer);
// Disables event dispatch during shutdown so that Window events no longer
// propagate as they are being closed/destroyed.
void ShutdownEventDispatch();
// Called when the login status changes.
// TODO(oshima): Investigate if we can merge this and |OnLoginStateChanged|.
void UpdateAfterLoginStatusChange(LoginStatus status);
// Notifies observers that fullscreen mode has changed for |container|.
// |container| is always the active desk container.
void NotifyFullscreenStateChanged(bool is_fullscreen,
aura::Window* container);
// Notifies observers that |pinned_window| changed its pinned window state.
void NotifyPinnedStateChanged(aura::Window* pinned_window);
// Notifies observers that |root_window|'s user work area insets have changed.
// This notification is not fired when shelf bounds changed.
void NotifyUserWorkAreaInsetsChanged(aura::Window* root_window);
// Notifies observers that |root_window|'s shelf changed alignment.
// TODO(jamescook): Move to Shelf.
void NotifyShelfAlignmentChanged(aura::Window* root_window,
ShelfAlignment old_alignment);
// Notifies observers that the display for new windows has changed.
void NotifyDisplayForNewWindowsChanged();
// Adds the |handler| based on its |type| to receive events, ensuring that
// event handlers continue to be called in their HandlerType order.
void AddAccessibilityEventHandler(
ui::EventHandler* handler,
AccessibilityEventHandlerManager::HandlerType type);
// Removes |handler| which was added through AddAccessibilityEventHandler.
void RemoveAccessibilityEventHandler(ui::EventHandler* handler);
LoginUnlockThroughputRecorder* login_unlock_throughput_recorder() {
return login_unlock_throughput_recorder_.get();
}
// Returns the DeskProfilesDelegate, or nullptr if it isn't available.
DeskProfilesDelegate* GetDeskProfilesDelegate();
private:
FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, TestCursor);
FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, MouseEventCursors);
FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, TransformActivate);
friend class AcceleratorControllerTest;
friend class AshTestHelper;
friend class RootWindowController;
friend class ShellTestApi;
friend class SmsObserverTest;
friend class ScopedFakeSystemTrayModel;
explicit Shell(std::unique_ptr<ShellDelegate> shell_delegate);
~Shell() override;
void Init(
ui::ContextFactory* context_factory,
PrefService* local_state,
std::unique_ptr<keyboard::KeyboardUIFactory> keyboard_ui_factory,
std::unique_ptr<ash::quick_pair::Mediator::Factory>
quick_pair_mediator_factory,
scoped_refptr<dbus::Bus> dbus_bus,
std::unique_ptr<display::NativeDisplayDelegate> native_display_delegate);
// Initializes the display manager and related components.
void InitializeDisplayManager();
// Initializes the root window so that it can host browser windows.
void InitRootWindow(aura::Window* root_window);
// Destroys all child windows including widgets across all roots.
void CloseAllRootWindowChildWindows();
// SystemModalContainerEventFilterDelegate:
bool CanWindowReceiveEvents(aura::Window* window) override;
// Overridden from ui::EventTarget:
bool CanAcceptEvent(const ui::Event& event) override;
EventTarget* GetParentTarget() override;
std::unique_ptr<ui::EventTargetIterator> GetChildIterator() const override;
ui::EventTargeter* GetEventTargeter() override;
// wm::ActivationChangeObserver:
void OnWindowActivated(ActivationReason reason,
aura::Window* gained_active,
aura::Window* lost_active) override;
// SessionObserver:
void OnFirstSessionStarted() override;
void OnFirstSessionReady() override;
void OnSessionStateChanged(session_manager::SessionState state) override;
void OnLoginStatusChanged(LoginStatus login_status) override;
void OnLockStateChanged(bool locked) override;
static Shell* instance_;
base::ObserverList<ShellObserver>::Unchecked shell_observers_;
// The CompoundEventFilter owned by aura::Env object.
std::unique_ptr<::wm::CompoundEventFilter> env_filter_;
std::unique_ptr<BatterySaverController> battery_saver_controller_;
std::unique_ptr<EventRewriterControllerImpl> event_rewriter_controller_;
std::unique_ptr<InputDeviceSettingsControllerImpl>
input_device_settings_controller_;
std::unique_ptr<ModifierKeyComboRecorder> modifier_key_combo_recorder_;
std::unique_ptr<RapidKeySequenceRecorder> rapid_key_sequence_recorder_;
std::unique_ptr<InputDeviceSettingsDispatcher>
input_device_settings_dispatcher_;
std::unique_ptr<InputDeviceTracker> input_device_tracker_;
std::unique_ptr<KeyboardModifierMetricsRecorder>
keyboard_modifier_metrics_recorder_;
std::unique_ptr<TouchscreenMetricsRecorder> touchscreen_metrics_recorder_;
std::unique_ptr<InputDeviceKeyAliasManager> input_device_key_alias_manager_;
std::unique_ptr<ShortcutInputHandler> shortcut_input_handler_;
std::unique_ptr<UserMetricsRecorder> user_metrics_recorder_;
std::unique_ptr<AcceleratorPrefs> accelerator_prefs_;
std::unique_ptr<AshAcceleratorConfiguration> ash_accelerator_configuration_;
std::unique_ptr<AcceleratorLookup> accelerator_lookup_;
std::unique_ptr<AcceleratorControllerImpl> accelerator_controller_;
std::unique_ptr<AcceleratorKeycodeLookupCache>
accelerator_keycode_lookup_cache_;
std::unique_ptr<AccessibilityController> accessibility_controller_;
std::unique_ptr<AccessibilityDelegate> accessibility_delegate_;
std::unique_ptr<AccessibilityFocusRingControllerImpl>
accessibility_focus_ring_controller_;
std::unique_ptr<AdaptiveChargingController> adaptive_charging_controller_;
std::unique_ptr<AmbientController> ambient_controller_;
std::unique_ptr<AnchoredNudgeManagerImpl> anchored_nudge_manager_;
std::unique_ptr<AppListControllerImpl> app_list_controller_;
std::unique_ptr<AppListFeatureUsageMetrics> app_list_feature_usage_metrics_;
// May be null in tests or when running on linux-chromeos.
scoped_refptr<dbus::Bus> dbus_bus_;
std::unique_ptr<AshDBusServices> ash_dbus_services_;
std::unique_ptr<AssistantControllerImpl> assistant_controller_;
std::unique_ptr<AudioEffectsController> audio_effects_controller_;
std::unique_ptr<AutozoomControllerImpl> autozoom_controller_;
std::unique_ptr<BacklightsForcedOffSetter> backlights_forced_off_setter_;
std::unique_ptr<BirchModel> birch_model_;
std::unique_ptr<BirchPrivacyNudgeController> birch_privacy_nudge_controller_;
std::unique_ptr<BrightnessControlDelegate> brightness_control_delegate_;
std::unique_ptr<CalendarController> calendar_controller_;
std::unique_ptr<CameraEffectsController> camera_effects_controller_;
std::unique_ptr<ColorPaletteController> color_palette_controller_;
std::unique_ptr<CrosDisplayConfig> cros_display_config_;
std::unique_ptr<curtain::SecurityCurtainController>
security_curtain_controller_;
std::unique_ptr<DarkLightModeControllerImpl> dark_light_mode_controller_;
std::unique_ptr<DesksController> desks_controller_;
std::unique_ptr<SavedDeskController> saved_desk_controller_;
std::unique_ptr<SavedDeskDelegate> saved_desk_delegate_;
std::unique_ptr<DetachableBaseHandler> detachable_base_handler_;
std::unique_ptr<DetachableBaseNotificationController>
detachable_base_notification_controller_;
std::unique_ptr<diagnostics::DiagnosticsLogController>
diagnostics_log_controller_;
std::unique_ptr<DisplayHighlightController> display_highlight_controller_;
std::unique_ptr<DisplayPerformanceModeController>
display_performance_mode_controller_;
std::unique_ptr<DisplaySpeakerController> display_speaker_controller_;
std::unique_ptr<DragDropController> drag_drop_controller_;
std::unique_ptr<FirmwareUpdateManager> firmware_update_manager_;
std::unique_ptr<FirmwareUpdateNotificationController>
firmware_update_notification_controller_;
std::unique_ptr<FocusCycler> focus_cycler_;
std::unique_ptr<FloatController> float_controller_;
std::unique_ptr<FocusModeController> focus_mode_controller_;
std::unique_ptr<GeolocationController> geolocation_controller_;
std::unique_ptr<BootingAnimationController> booting_animation_controller_;
std::unique_ptr<GlanceablesController> glanceables_controller_;
std::unique_ptr<PostLoginGlanceablesMetricsRecorder>
post_login_glanceables_metrics_reporter_;
std::unique_ptr<HoldingSpaceController> holding_space_controller_;
std::unique_ptr<PowerPrefs> power_prefs_;
std::unique_ptr<SnapGroupController> snap_group_controller_;
std::unique_ptr<SnoopingProtectionController> snooping_protection_controller_;
std::unique_ptr<HumanPresenceOrientationController>
human_presence_orientation_controller_;
std::unique_ptr<ImeControllerImpl> ime_controller_;
std::unique_ptr<chromeos::ImmersiveContext> immersive_context_;
std::unique_ptr<WebAuthNDialogControllerImpl> webauthn_dialog_controller_;
std::unique_ptr<KeyboardBacklightColorController>
keyboard_backlight_color_controller_;
std::unique_ptr<InSessionAuthDialogControllerImpl>
in_session_auth_dialog_controller_;
std::unique_ptr<KeyboardBrightnessControlDelegate>
keyboard_brightness_control_delegate_;
std::unique_ptr<LobsterController> lobster_controller_;
std::unique_ptr<LocaleUpdateControllerImpl> locale_update_controller_;
std::unique_ptr<LoginScreenController> login_screen_controller_;
std::unique_ptr<LogoutConfirmationController> logout_confirmation_controller_;
std::unique_ptr<TabClusterUIController> tab_cluster_ui_controller_;
std::unique_ptr<TabletModeController> tablet_mode_controller_;
std::unique_ptr<MessageCenterAshImpl> message_center_ash_impl_;
std::unique_ptr<MediaControllerImpl> media_controller_;
std::unique_ptr<MediaNotificationProvider> media_notification_provider_;
std::unique_ptr<MruWindowTracker> mru_window_tracker_;
std::unique_ptr<MultiDisplayMetricsController>
multi_display_metrics_controller_;
std::unique_ptr<MultiDeviceNotificationPresenter>
multidevice_notification_presenter_;
std::unique_ptr<chromeos::MultitaskMenuNudgeController::Delegate>
multitask_menu_nudge_delegate_;
std::unique_ptr<NearbyShareControllerImpl> nearby_share_controller_;
std::unique_ptr<NearbyShareDelegate> nearby_share_delegate_;
std::unique_ptr<ParentAccessController> parent_access_controller_;
std::unique_ptr<LocalAuthenticationRequestController>
local_authentication_request_controller_;
std::unique_ptr<ActiveSessionAuthController> active_session_auth_controller_;
std::unique_ptr<PciePeripheralNotificationController>
pcie_peripheral_notification_controller_;
std::unique_ptr<PickerController> picker_controller_;
std::unique_ptr<PrivacyHubController> privacy_hub_controller_;
std::unique_ptr<UsbPeripheralNotificationController>
usb_peripheral_notification_controller_;
std::unique_ptr<RgbKeyboardManager> rgb_keyboard_manager_;
std::unique_ptr<RasterScaleController> raster_scale_controller_;
std::unique_ptr<ResizeShadowController> resize_shadow_controller_;
std::unique_ptr<SessionControllerImpl> session_controller_;
std::unique_ptr<FeatureDiscoveryDurationReporterImpl>
feature_discover_reporter_;
std::unique_ptr<AshColorProvider> ash_color_provider_;
std::unique_ptr<NightLightControllerImpl> night_light_controller_;
std::unique_ptr<InformedRestoreController> informed_restore_controller_;
std::unique_ptr<PipController> pip_controller_;
std::unique_ptr<PrivacyScreenController> privacy_screen_controller_;
std::unique_ptr<PolicyRecommendationRestorer> policy_recommendation_restorer_;
std::unique_ptr<ScreenSwitchCheckController> screen_switch_check_controller_;
std::unique_ptr<ShelfConfig> shelf_config_;
std::unique_ptr<ShelfController> shelf_controller_;
std::unique_ptr<ShelfWindowWatcher> shelf_window_watcher_;
std::unique_ptr<ShellDelegate> shell_delegate_;
std::unique_ptr<CaptureModeController> capture_mode_controller_;
std::unique_ptr<ControlVHistogramRecorder> control_v_histogram_recorder_;
std::unique_ptr<AcceleratorTracker> accelerator_tracker_;
std::unique_ptr<ShutdownControllerImpl> shutdown_controller_;
std::unique_ptr<SystemNotificationController> system_notification_controller_;
std::unique_ptr<SystemNudgePauseManagerImpl> system_nudge_pause_manager_;
std::unique_ptr<SystemTrayModel> system_tray_model_;
std::unique_ptr<SystemTrayNotifier> system_tray_notifier_;
std::unique_ptr<SystemSoundsDelegate> system_sounds_delegate_;
std::unique_ptr<api::TasksController> tasks_controller_;
std::unique_ptr<ToastManagerImpl> toast_manager_;
std::unique_ptr<ClipboardHistoryControllerImpl> clipboard_history_controller_;
std::unique_ptr<TouchDevicesController> touch_devices_controller_;
std::unique_ptr<TrayAction> tray_action_;
std::unique_ptr<UserEducationController> user_education_controller_;
std::unique_ptr<TabStripDelegate> tab_strip_delegate_;
std::unique_ptr<WallpaperControllerImpl> wallpaper_controller_;
std::unique_ptr<WindowCycleController> window_cycle_controller_;
std::unique_ptr<WindowRestoreController> window_restore_controller_;
std::unique_ptr<WindowTilingController> window_tiling_controller_;
std::unique_ptr<OverviewController> overview_controller_;
std::unique_ptr<GameDashboardController> game_dashboard_controller_;
// Owned by |focus_controller_|.
raw_ptr<AshFocusRules> focus_rules_ = nullptr;
std::unique_ptr<::wm::ShadowController> shadow_controller_;
std::unique_ptr<::wm::VisibilityController> visibility_controller_;
std::unique_ptr<::wm::WindowModalityController> window_modality_controller_;
raw_ptr<PrefService> local_state_ = nullptr;
std::unique_ptr<views::corewm::TooltipController> tooltip_controller_;
std::unique_ptr<PowerButtonController> power_button_controller_;
std::unique_ptr<LockStateController> lock_state_controller_;
std::unique_ptr<VideoDetector> video_detector_;
std::unique_ptr<WindowTreeHostManager> window_tree_host_manager_;
std::unique_ptr<PersistentWindowController> persistent_window_controller_;
std::unique_ptr<ColorEnhancementController> color_enhancement_controller_;
std::unique_ptr<FullscreenMagnifierController>
fullscreen_magnifier_controller_;
std::unique_ptr<AutoclickController> autoclick_controller_;
std::unique_ptr<MouseKeysController> mouse_keys_controller_;
std::unique_ptr<::wm::FocusController> focus_controller_;
std::unique_ptr<MouseCursorEventFilter> mouse_cursor_filter_;
std::unique_ptr<ScreenPositionController> screen_position_controller_;
std::unique_ptr<SystemModalContainerEventFilter> modality_filter_;
std::unique_ptr<EventClientImpl> event_client_;
std::unique_ptr<EventTransformationHandler> event_transformation_handler_;
// An event filter which handles swiping back from left side of the window.
std::unique_ptr<BackGestureEventHandler> back_gesture_event_handler_;
// An event filter which redirects focus when tab is pressed on a RootWindow
// with no active windows.
std::unique_ptr<ui::EventHandler> shell_tab_handler_;
// An event filter which handles moving and resizing windows.
std::unique_ptr<ToplevelWindowEventHandler> toplevel_window_event_handler_;
// An event filter which handles system level gestures
std::unique_ptr<SystemGestureEventFilter> system_gesture_filter_;
// An event filter that pre-handles global accelerators.
std::unique_ptr<::wm::AcceleratorFilter> accelerator_filter_;
std::unique_ptr<display::DisplayManager> display_manager_;
std::unique_ptr<DisplayPrefs> display_prefs_;
std::unique_ptr<DisplayConfigurationController>
display_configuration_controller_;
std::unique_ptr<DisplayConfigurationObserver> display_configuration_observer_;
std::unique_ptr<ScreenPinningController> screen_pinning_controller_;
std::unique_ptr<PeripheralBatteryListener> peripheral_battery_listener_;
std::unique_ptr<PeripheralBatteryNotifier> peripheral_battery_notifier_;
std::unique_ptr<PowerEventObserver> power_event_observer_;
std::unique_ptr<ui::UserActivityPowerManagerNotifier> user_activity_notifier_;
std::unique_ptr<VideoActivityNotifier> video_activity_notifier_;
std::unique_ptr<StickyKeysController> sticky_keys_controller_;
std::unique_ptr<ResolutionNotificationController>
resolution_notification_controller_;
std::unique_ptr<BluetoothNotificationController>
bluetooth_notification_controller_;
std::unique_ptr<BluetoothStateCache> bluetooth_state_cache_;
std::unique_ptr<BluetoothDeviceStatusUiHandler>
bluetooth_device_status_ui_handler_;
std::unique_ptr<KeyboardControllerImpl> keyboard_controller_;
std::unique_ptr<DisplayAlignmentController> display_alignment_controller_;
std::unique_ptr<ui::KeyboardCapability> keyboard_capability_;
std::unique_ptr<DisplayColorManager> display_color_manager_;
std::unique_ptr<DisplayErrorObserver> display_error_observer_;
std::unique_ptr<RefreshRateController> refresh_rate_controller_;
std::unique_ptr<ProjectingObserver> projecting_observer_;
std::unique_ptr<HotspotIconAnimation> hotspot_icon_animation_;
std::unique_ptr<HotspotInfoCache> hotspot_info_cache_;
std::unique_ptr<display::DisplayPortObserver> display_port_observer_;
// Listens for output changes and updates the display manager.
std::unique_ptr<display::DisplayChangeObserver> display_change_observer_;
// Listens for shutdown and updates DisplayConfigurator.
std::unique_ptr<DisplayShutdownObserver> display_shutdown_observer_;
// Listens for new sms messages and shows notifications.
std::unique_ptr<SmsObserver> sms_observer_;
// Implements content::ScreenOrientationController for Chrome OS.
std::unique_ptr<ScreenOrientationController> screen_orientation_controller_;
std::unique_ptr<ScreenLayoutObserver> screen_layout_observer_;
std::unique_ptr<AshTouchTransformController> touch_transformer_controller_;
std::unique_ptr<ui::EventHandler> magnifier_key_scroll_handler_;
std::unique_ptr<ui::EventHandler> speech_feedback_handler_;
std::unique_ptr<LaserPointerController> laser_pointer_controller_;
std::unique_ptr<PartialMagnifierController> partial_magnifier_controller_;
std::unique_ptr<DockedMagnifierController> docked_magnifier_controller_;
std::unique_ptr<chromeos::SnapController> snap_controller_;
std::unique_ptr<WmModeController> wm_mode_controller_;
// |native_cursor_manager_| is owned by |cursor_manager_|, but we keep a
// pointer to vend to test code.
raw_ptr<NativeCursorManagerAsh, DanglingUntriaged> native_cursor_manager_;
// Cursor may be hidden on certain key events in Chrome OS, whereas we never
// hide the cursor on Windows.
std::unique_ptr<::wm::CursorManager> cursor_manager_;
// Enables spoken feedback accessibility based on a press and hold of both
// volume keys.
std::unique_ptr<KeyAccessibilityEnabler> key_accessibility_enabler_;
std::unique_ptr<FrameThrottlingController> frame_throttling_controller_;
std::unique_ptr<ProjectorControllerImpl> projector_controller_;
std::unique_ptr<AnnotatorController> annotator_controller_;
std::unique_ptr<AccessibilityEventHandlerManager>
accessibility_event_handler_manager_;
// For testing only: simulate that a modal window is open
bool simulate_modal_window_open_for_test_ = false;
std::unique_ptr<MessageCenterController> message_center_controller_;
std::unique_ptr<LoginUnlockThroughputRecorder>
login_unlock_throughput_recorder_;
std::unique_ptr<UnlockThroughputRecorder> unlock_throughput_recorder_;
std::unique_ptr<OcclusionTrackerPauser> occlusion_tracker_pauser_;
std::unique_ptr<MultiCaptureServiceClient> multi_capture_service_client_;
std::unique_ptr<federated::FederatedServiceControllerImpl>
federated_service_controller_;
std::unique_ptr<quick_pair::Mediator> quick_pair_mediator_;
std::unique_ptr<display::NativeDisplayDelegate> native_display_delegate_;
std::unique_ptr<CoralController> coral_controller_;
base::WeakPtrFactory<Shell> weak_factory_{this};
};
} // namespace ash
namespace base {
template <>
struct ScopedObservationTraits<ash::Shell, ash::ShellObserver> {
static void AddObserver(ash::Shell* source, ash::ShellObserver* observer) {
source->AddShellObserver(observer);
}
static void RemoveObserver(ash::Shell* source, ash::ShellObserver* observer) {
source->RemoveShellObserver(observer);
}
};
} // namespace base
#endif // ASH_SHELL_H_
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