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// 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.
#include "ash/shell.h"
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include "ash/accelerators/accelerator_controller_impl.h"
#include "ash/accelerators/accelerator_tracker.h"
#include "ash/accelerators/ash_accelerator_configuration.h"
#include "ash/accelerators/ash_focus_manager_factory.h"
#include "ash/accelerators/magnifier_key_scroller.h"
#include "ash/accelerators/pre_target_accelerator_handler.h"
#include "ash/accelerators/spoken_feedback_toggler.h"
#include "ash/accelerometer/accelerometer_reader.h"
#include "ash/accessibility/accessibility_controller_impl.h"
#include "ash/accessibility/accessibility_delegate.h"
#include "ash/accessibility/autoclick/autoclick_controller.h"
#include "ash/accessibility/chromevox/key_accessibility_enabler.h"
#include "ash/accessibility/magnifier/docked_magnifier_controller.h"
#include "ash/accessibility/magnifier/fullscreen_magnifier_controller.h"
#include "ash/accessibility/magnifier/partial_magnifier_controller.h"
#include "ash/accessibility/sticky_keys/sticky_keys_controller.h"
#include "ash/accessibility/ui/accessibility_focus_ring_controller_impl.h"
#include "ash/ambient/ambient_controller.h"
#include "ash/app_list/app_list_controller_impl.h"
#include "ash/app_list/app_list_feature_usage_metrics.h"
#include "ash/assistant/assistant_controller_impl.h"
#include "ash/calendar/calendar_controller.h"
#include "ash/capture_mode/capture_mode_controller.h"
#include "ash/child_accounts/parent_access_controller_impl.h"
#include "ash/clipboard/clipboard_history_controller_impl.h"
#include "ash/clipboard/control_v_histogram_recorder.h"
#include "ash/color_enhancement/color_enhancement_controller.h"
#include "ash/constants/ash_features.h"
#include "ash/constants/ash_switches.h"
#include "ash/controls/contextual_tooltip.h"
#include "ash/curtain/security_curtain_controller_impl.h"
#include "ash/dbus/ash_dbus_services.h"
#include "ash/detachable_base/detachable_base_handler.h"
#include "ash/detachable_base/detachable_base_notification_controller.h"
#include "ash/display/cros_display_config.h"
#include "ash/display/cursor_window_controller.h"
#include "ash/display/display_alignment_controller.h"
#include "ash/display/display_color_manager.h"
#include "ash/display/display_configuration_controller.h"
#include "ash/display/display_configuration_observer.h"
#include "ash/display/display_error_observer.h"
#include "ash/display/display_highlight_controller.h"
#include "ash/display/display_prefs.h"
#include "ash/display/display_shutdown_observer.h"
#include "ash/display/event_transformation_handler.h"
#include "ash/display/mouse_cursor_event_filter.h"
#include "ash/display/privacy_screen_controller.h"
#include "ash/display/projecting_observer.h"
#include "ash/display/refresh_rate_throttle_controller.h"
#include "ash/display/resolution_notification_controller.h"
#include "ash/display/screen_ash.h"
#include "ash/display/screen_orientation_controller.h"
#include "ash/display/screen_position_controller.h"
#include "ash/display/window_tree_host_manager.h"
#include "ash/drag_drop/drag_drop_controller.h"
#include "ash/events/event_rewriter_controller_impl.h"
#include "ash/events/keyboard_capability_delegate_impl.h"
#include "ash/fast_ink/laser/laser_pointer_controller.h"
#include "ash/focus_cycler.h"
#include "ash/frame/non_client_frame_view_ash.h"
#include "ash/frame/snap_controller_impl.h"
#include "ash/frame_throttler/frame_throttling_controller.h"
#include "ash/game_dashboard/game_dashboard_controller.h"
#include "ash/glanceables/glanceables_controller.h"
#include "ash/glanceables/glanceables_delegate.h"
#include "ash/glanceables/glanceables_v2_controller.h"
#include "ash/host/ash_window_tree_host_init_params.h"
#include "ash/hud_display/hud_display.h"
#include "ash/ime/ime_controller_impl.h"
#include "ash/in_session_auth/in_session_auth_dialog_controller_impl.h"
#include "ash/in_session_auth/webauthn_dialog_controller_impl.h"
#include "ash/keyboard/keyboard_controller_impl.h"
#include "ash/keyboard/ui/keyboard_ui_factory.h"
#include "ash/login/login_screen_controller.h"
#include "ash/login_status.h"
#include "ash/media/media_controller_impl.h"
#include "ash/metrics/feature_discovery_duration_reporter_impl.h"
#include "ash/metrics/login_unlock_throughput_recorder.h"
#include "ash/metrics/user_metrics_recorder.h"
#include "ash/multi_capture/multi_capture_service_client.h"
#include "ash/multi_device_setup/multi_device_notification_presenter.h"
#include "ash/policy/policy_recommendation_restorer.h"
#include "ash/projector/projector_controller_impl.h"
#include "ash/public/cpp/accelerator_keycode_lookup_cache.h"
#include "ash/public/cpp/ash_prefs.h"
#include "ash/public/cpp/holding_space/holding_space_controller.h"
#include "ash/public/cpp/nearby_share_delegate.h"
#include "ash/public/cpp/saved_desk_delegate.h"
#include "ash/public/cpp/shelf_config.h"
#include "ash/public/cpp/shelf_model.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/public/cpp/system_sounds_delegate.h"
#include "ash/public/cpp/tab_cluster/tab_cluster_ui_controller.h"
#include "ash/public/cpp/views_text_services_context_menu_ash.h"
#include "ash/quick_pair/keyed_service/quick_pair_mediator.h"
#include "ash/rgb_keyboard/rgb_keyboard_manager.h"
#include "ash/root_window_controller.h"
#include "ash/session/session_controller_impl.h"
#include "ash/shelf/shelf_controller.h"
#include "ash/shelf/shelf_window_watcher.h"
#include "ash/shell_delegate.h"
#include "ash/shell_init_params.h"
#include "ash/shell_observer.h"
#include "ash/shell_tab_handler.h"
#include "ash/shutdown_controller_impl.h"
#include "ash/style/ash_color_mixer.h"
#include "ash/style/ash_color_provider.h"
#include "ash/style/color_palette_controller.h"
#include "ash/style/dark_light_mode_controller_impl.h"
#include "ash/style/style_util.h"
#include "ash/system/audio/audio_effects_controller.h"
#include "ash/system/audio/display_speaker_controller.h"
#include "ash/system/bluetooth/bluetooth_device_status_ui_handler.h"
#include "ash/system/bluetooth/bluetooth_notification_controller.h"
#include "ash/system/bluetooth/bluetooth_state_cache.h"
#include "ash/system/brightness/brightness_controller_chromeos.h"
#include "ash/system/brightness_control_delegate.h"
#include "ash/system/camera/autozoom_controller_impl.h"
#include "ash/system/camera/camera_effects_controller.h"
#include "ash/system/caps_lock_notification_controller.h"
#include "ash/system/diagnostics/diagnostics_log_controller.h"
#include "ash/system/federated/federated_service_controller_impl.h"
#include "ash/system/firmware_update/firmware_update_notification_controller.h"
#include "ash/system/geolocation/geolocation_controller.h"
#include "ash/system/human_presence/human_presence_orientation_controller.h"
#include "ash/system/human_presence/snooping_protection_controller.h"
#include "ash/system/input_device_settings/input_device_key_alias_manager.h"
#include "ash/system/input_device_settings/input_device_settings_controller_impl.h"
#include "ash/system/input_device_settings/input_device_settings_dispatcher.h"
#include "ash/system/input_device_settings/input_device_tracker.h"
#include "ash/system/input_device_settings/keyboard_modifier_metrics_recorder.h"
#include "ash/system/keyboard_brightness/keyboard_backlight_color_controller.h"
#include "ash/system/keyboard_brightness/keyboard_brightness_controller.h"
#include "ash/system/keyboard_brightness_control_delegate.h"
#include "ash/system/locale/locale_update_controller_impl.h"
#include "ash/system/media/media_notification_provider.h"
#include "ash/system/message_center/message_center_ash_impl.h"
#include "ash/system/message_center/message_center_controller.h"
#include "ash/system/model/system_tray_model.h"
#include "ash/system/model/virtual_keyboard_model.h"
#include "ash/system/nearby_share/nearby_share_controller_impl.h"
#include "ash/system/network/sms_observer.h"
#include "ash/system/night_light/night_light_controller_impl.h"
#include "ash/system/pcie_peripheral/pcie_peripheral_notification_controller.h"
#include "ash/system/power/adaptive_charging_controller.h"
#include "ash/system/power/backlights_forced_off_setter.h"
#include "ash/system/power/peripheral_battery_notifier.h"
#include "ash/system/power/power_button_controller.h"
#include "ash/system/power/power_event_observer.h"
#include "ash/system/power/power_prefs.h"
#include "ash/system/power/power_status.h"
#include "ash/system/power/video_activity_notifier.h"
#include "ash/system/privacy/screen_switch_check_controller.h"
#include "ash/system/privacy_hub/privacy_hub_controller.h"
#include "ash/system/screen_layout_observer.h"
#include "ash/system/session/logout_confirmation_controller.h"
#include "ash/system/status_area_widget.h"
#include "ash/system/system_notification_controller.h"
#include "ash/system/toast/toast_manager_impl.h"
#include "ash/system/tray/system_tray_notifier.h"
#include "ash/system/usb_peripheral/usb_peripheral_notification_controller.h"
#include "ash/system/video_conference/fake_video_conference_tray_controller.h"
#include "ash/touch/ash_touch_transform_controller.h"
#include "ash/touch/touch_devices_controller.h"
#include "ash/touch/touch_selection_magnifier_runner_ash.h"
#include "ash/tray_action/tray_action.h"
#include "ash/user_education/user_education_controller.h"
#include "ash/user_education/user_education_delegate.h"
#include "ash/utility/occlusion_tracker_pauser.h"
#include "ash/wallpaper/wallpaper_controller_impl.h"
#include "ash/wm/ash_focus_rules.h"
#include "ash/wm/container_finder.h"
#include "ash/wm/cursor_manager_chromeos.h"
#include "ash/wm/desks/desks_controller.h"
#include "ash/wm/desks/templates/saved_desk_controller.h"
#include "ash/wm/event_client_impl.h"
#include "ash/wm/float/float_controller.h"
#include "ash/wm/gestures/back_gesture/back_gesture_event_handler.h"
#include "ash/wm/immersive_context_ash.h"
#include "ash/wm/lock_state_controller.h"
#include "ash/wm/mru_window_tracker.h"
#include "ash/wm/multi_display/multi_display_metrics_controller.h"
#include "ash/wm/multi_display/persistent_window_controller.h"
#include "ash/wm/multitask_menu_nudge_delegate_ash.h"
#include "ash/wm/native_cursor_manager_ash.h"
#include "ash/wm/overview/overview_controller.h"
#include "ash/wm/raster_scale_controller.h"
#include "ash/wm/resize_shadow_controller.h"
#include "ash/wm/screen_pinning_controller.h"
#include "ash/wm/snap_group/snap_group_controller.h"
#include "ash/wm/system_gesture_event_filter.h"
#include "ash/wm/system_modal_container_event_filter.h"
#include "ash/wm/system_modal_container_layout_manager.h"
#include "ash/wm/tablet_mode/tablet_mode_controller.h"
#include "ash/wm/tablet_mode/tablet_mode_window_manager.h"
#include "ash/wm/toplevel_window_event_handler.h"
#include "ash/wm/video_detector.h"
#include "ash/wm/window_animations.h"
#include "ash/wm/window_cycle/window_cycle_controller.h"
#include "ash/wm/window_properties.h"
#include "ash/wm/window_restore/window_restore_controller.h"
#include "ash/wm/window_util.h"
#include "ash/wm/wm_shadow_controller_delegate.h"
#include "ash/wm/workspace_controller.h"
#include "ash/wm_mode/wm_mode_controller.h"
#include "base/check.h"
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ptr_util.h"
#include "base/notreached.h"
#include "base/system/sys_info.h"
#include "base/trace_event/trace_event.h"
#include "chromeos/ash/components/dbus/fwupd/fwupd_client.h"
#include "chromeos/ash/components/dbus/usb/usbguard_client.h"
#include "chromeos/ash/components/fwupd/firmware_update_manager.h"
#include "chromeos/ash/components/peripheral_notification/peripheral_notification_manager.h"
#include "chromeos/ash/services/assistant/public/cpp/features.h"
#include "chromeos/dbus/init/initialize_dbus_client.h"
#include "chromeos/dbus/power/power_policy_controller.h"
#include "chromeos/ui/wm/features.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "components/viz/host/host_frame_sink_manager.h"
#include "dbus/bus.h"
#include "media/capture/video/chromeos/video_capture_features_chromeos.h"
#include "services/video_capture/public/mojom/multi_capture_service.mojom.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/env.h"
#include "ui/aura/layout_manager.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/base/cursor/mojom/cursor_type.mojom-shared.h"
#include "ui/base/ui_base_features.h"
#include "ui/base/user_activity/user_activity_detector.h"
#include "ui/chromeos/user_activity_power_manager_notifier.h"
#include "ui/color/color_provider_manager.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animator.h"
#include "ui/display/display.h"
#include "ui/display/manager/default_touch_transform_setter.h"
#include "ui/display/manager/display_change_observer.h"
#include "ui/display/manager/display_configurator.h"
#include "ui/display/manager/display_manager.h"
#include "ui/display/manager/touch_transform_setter.h"
#include "ui/display/screen.h"
#include "ui/display/types/native_display_delegate.h"
#include "ui/events/ash/keyboard_capability.h"
#include "ui/events/event_target_iterator.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/message_center/message_center.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/views/controls/views_text_services_context_menu_chromeos.h"
#include "ui/views/corewm/tooltip_aura.h"
#include "ui/views/corewm/tooltip_controller.h"
#include "ui/views/focus/focus_manager_factory.h"
#include "ui/views/widget/native_widget_aura.h"
#include "ui/views/widget/widget.h"
#include "ui/wm/core/accelerator_filter.h"
#include "ui/wm/core/compound_event_filter.h"
#include "ui/wm/core/focus_controller.h"
#include "ui/wm/core/shadow_controller.h"
#include "ui/wm/core/visibility_controller.h"
#include "ui/wm/core/window_modality_controller.h"
namespace ash {
namespace {
using aura::Window;
using views::Widget;
// A Corewm VisibilityController subclass that calls the Ash animation routine
// so we can pick up our extended animations. See ash/wm/window_animations.h.
class AshVisibilityController : public ::wm::VisibilityController {
public:
AshVisibilityController() = default;
AshVisibilityController(const AshVisibilityController&) = delete;
AshVisibilityController& operator=(const AshVisibilityController&) = delete;
~AshVisibilityController() override = default;
private:
// Overridden from ::wm::VisibilityController:
bool CallAnimateOnChildWindowVisibilityChanged(aura::Window* window,
bool visible) override {
return AnimateOnChildWindowVisibilityChanged(window, visible);
}
};
} // namespace
// static
Shell* Shell::instance_ = nullptr;
////////////////////////////////////////////////////////////////////////////////
// Shell, public:
// static
Shell* Shell::CreateInstance(ShellInitParams init_params) {
CHECK(!instance_);
instance_ = new Shell(std::move(init_params.delegate));
instance_->Init(init_params.context_factory, init_params.local_state,
std::move(init_params.keyboard_ui_factory),
init_params.dbus_bus);
return instance_;
}
// static
Shell* Shell::Get() {
CHECK(instance_);
return instance_;
}
// static
bool Shell::HasInstance() {
return !!instance_;
}
// static
void Shell::DeleteInstance() {
delete instance_;
}
// static
RootWindowController* Shell::GetPrimaryRootWindowController() {
CHECK(HasInstance());
return RootWindowController::ForWindow(GetPrimaryRootWindow());
}
// static
Shell::RootWindowControllerList Shell::GetAllRootWindowControllers() {
CHECK(HasInstance());
RootWindowControllerList root_window_controllers;
for (aura::Window* root : GetAllRootWindows()) {
root_window_controllers.push_back(RootWindowController::ForWindow(root));
}
return root_window_controllers;
}
// static
RootWindowController* Shell::GetRootWindowControllerWithDisplayId(
int64_t display_id) {
CHECK(HasInstance());
aura::Window* root = GetRootWindowForDisplayId(display_id);
return root ? RootWindowController::ForWindow(root) : nullptr;
}
// static
aura::Window* Shell::GetRootWindowForDisplayId(int64_t display_id) {
CHECK(HasInstance());
return instance_->window_tree_host_manager_->GetRootWindowForDisplayId(
display_id);
}
// static
aura::Window* Shell::GetPrimaryRootWindow() {
CHECK(HasInstance());
return instance_->window_tree_host_manager_->GetPrimaryRootWindow();
}
// static
void Shell::SetRootWindowForNewWindows(aura::Window* root) {
display::Screen::GetScreen()->SetDisplayForNewWindows(
display::Screen::GetScreen()->GetDisplayNearestWindow(root).id());
}
// static
aura::Window* Shell::GetRootWindowForNewWindows() {
return GetRootWindowForDisplayId(
display::Screen::GetScreen()->GetDisplayForNewWindows().id());
}
// static
aura::Window::Windows Shell::GetAllRootWindows() {
CHECK(HasInstance());
return instance_->window_tree_host_manager_->GetAllRootWindows();
}
// static
aura::Window* Shell::GetContainer(aura::Window* root_window, int container_id) {
return root_window->GetChildById(container_id);
}
// static
const aura::Window* Shell::GetContainer(const aura::Window* root_window,
int container_id) {
return root_window->GetChildById(container_id);
}
// static
int Shell::GetOpenSystemModalWindowContainerId() {
// The test boolean is not static to avoid leaking state between tests.
if (Get()->simulate_modal_window_open_for_test_) {
return kShellWindowId_SystemModalContainer;
}
// Traverse all system modal containers, and find its direct child window
// with "SystemModal" setting, and visible.
for (aura::Window* root : Shell::GetAllRootWindows()) {
for (int modal_window_id : kSystemModalContainerIds) {
aura::Window* system_modal = root->GetChildById(modal_window_id);
if (!system_modal) {
continue;
}
for (const aura::Window* child : system_modal->children()) {
if (child->GetProperty(aura::client::kModalKey) ==
ui::MODAL_TYPE_SYSTEM &&
child->layer()->GetTargetVisibility()) {
return modal_window_id;
}
}
}
}
return -1;
}
// static
bool Shell::IsSystemModalWindowOpen() {
return GetOpenSystemModalWindowContainerId() >= 0;
}
display::DisplayConfigurator* Shell::display_configurator() {
return display_manager_->configurator();
}
void Shell::TrackInputMethodBounds(ArcInputMethodBoundsTracker* tracker) {
system_tray_model()->virtual_keyboard()->SetInputMethodBoundsTrackerObserver(
tracker);
}
void Shell::UntrackTrackInputMethodBounds(
ArcInputMethodBoundsTracker* tracker) {
system_tray_model()
->virtual_keyboard()
->RemoveInputMethodBoundsTrackerObserver(tracker);
}
std::unique_ptr<views::NonClientFrameView>
Shell::CreateDefaultNonClientFrameView(views::Widget* widget) {
// Use translucent-style window frames for dialogs.
return std::make_unique<NonClientFrameViewAsh>(widget);
}
void Shell::OnCastingSessionStartedOrStopped(bool started) {
for (auto& observer : shell_observers_) {
observer.OnCastingSessionStartedOrStopped(started);
}
}
void Shell::OnRootWindowAdded(aura::Window* root_window) {
for (auto& observer : shell_observers_) {
observer.OnRootWindowAdded(root_window);
}
}
void Shell::OnRootWindowWillShutdown(aura::Window* root_window) {
DCHECK(toplevel_window_event_handler_);
root_window->RemovePreTargetHandler(toplevel_window_event_handler_.get());
root_window->RemovePostTargetHandler(toplevel_window_event_handler_.get());
for (auto& observer : shell_observers_) {
observer.OnRootWindowWillShutdown(root_window);
}
}
void Shell::OnDictationStarted() {
for (auto& observer : shell_observers_) {
observer.OnDictationStarted();
}
}
void Shell::OnDictationEnded() {
for (auto& observer : shell_observers_) {
observer.OnDictationEnded();
}
}
bool Shell::IsInTabletMode() const {
return tablet_mode_controller()->InTabletMode();
}
bool Shell::ShouldSaveDisplaySettings() {
return !(
screen_orientation_controller_->ignore_display_configuration_updates() ||
// Save display settings if we don't need to show the display change
// dialog.
resolution_notification_controller_->ShouldShowDisplayChangeDialog());
}
::wm::ActivationClient* Shell::activation_client() {
return focus_controller_.get();
}
bool Shell::HasPrimaryStatusArea() {
return !!GetPrimaryRootWindowController()->GetStatusAreaWidget();
}
void Shell::SetLargeCursorSizeInDip(int large_cursor_size_in_dip) {
window_tree_host_manager_->cursor_window_controller()
->SetLargeCursorSizeInDip(large_cursor_size_in_dip);
}
void Shell::SetCursorColor(SkColor cursor_color) {
window_tree_host_manager_->cursor_window_controller()->SetCursorColor(
cursor_color);
}
void Shell::UpdateCursorCompositingEnabled() {
SetCursorCompositingEnabled(
window_tree_host_manager_->cursor_window_controller()
->ShouldEnableCursorCompositing());
}
void Shell::SetCursorCompositingEnabled(bool enabled) {
CursorWindowController* cursor_window_controller =
window_tree_host_manager_->cursor_window_controller();
if (cursor_window_controller->is_cursor_compositing_enabled() == enabled) {
return;
}
cursor_window_controller->SetCursorCompositingEnabled(enabled);
native_cursor_manager_->SetNativeCursorEnabled(!enabled);
}
void Shell::DoInitialWorkspaceAnimation() {
// Uses the active desk's workspace.
auto* workspace = GetActiveWorkspaceController(GetPrimaryRootWindow());
DCHECK(workspace);
workspace->DoInitialAnimation();
}
void Shell::ShowContextMenu(const gfx::Point& location_in_screen,
ui::MenuSourceType source_type) {
// Bail with no active user session, in the lock screen, or in app/kiosk mode.
if (session_controller_->NumberOfLoggedInUsers() < 1 ||
session_controller_->IsScreenLocked() ||
session_controller_->IsRunningInAppMode()) {
return;
}
aura::Window* root = window_util::GetRootWindowAt(location_in_screen);
RootWindowController::ForWindow(root)->ShowContextMenu(location_in_screen,
source_type);
}
void Shell::AddShellObserver(ShellObserver* observer) {
shell_observers_.AddObserver(observer);
}
void Shell::RemoveShellObserver(ShellObserver* observer) {
shell_observers_.RemoveObserver(observer);
}
void Shell::ShutdownEventDispatch() {
for (aura::Window* root : GetAllRootWindows()) {
aura::client::SetDragDropClient(root, nullptr);
}
// Stop dispatching events (e.g. synthesized mouse exits from window close).
// https://crbug.com/874156
for (RootWindowController* rwc : GetAllRootWindowControllers()) {
rwc->GetHost()->dispatcher()->Shutdown();
}
}
void Shell::UpdateAfterLoginStatusChange(LoginStatus status) {
for (auto* root_window_controller : GetAllRootWindowControllers()) {
root_window_controller->UpdateAfterLoginStatusChange(status);
}
}
void Shell::NotifyFullscreenStateChanged(bool is_fullscreen,
aura::Window* container) {
for (auto& observer : shell_observers_) {
observer.OnFullscreenStateChanged(is_fullscreen, container);
}
}
void Shell::NotifyPinnedStateChanged(aura::Window* pinned_window) {
for (auto& observer : shell_observers_) {
observer.OnPinnedStateChanged(pinned_window);
}
}
void Shell::NotifyUserWorkAreaInsetsChanged(aura::Window* root_window) {
for (auto& observer : shell_observers_) {
observer.OnUserWorkAreaInsetsChanged(root_window);
}
}
void Shell::NotifyShelfAlignmentChanged(aura::Window* root_window,
ShelfAlignment old_alignment) {
for (auto& observer : shell_observers_) {
observer.OnShelfAlignmentChanged(root_window, old_alignment);
}
}
void Shell::NotifyDisplayForNewWindowsChanged() {
for (auto& observer : shell_observers_) {
observer.OnDisplayForNewWindowsChanged();
}
}
void Shell::AddAccessibilityEventHandler(
ui::EventHandler* handler,
AccessibilityEventHandlerManager::HandlerType type) {
if (!accessibility_event_handler_manager_) {
accessibility_event_handler_manager_ =
std::make_unique<AccessibilityEventHandlerManager>();
}
accessibility_event_handler_manager_->AddAccessibilityEventHandler(handler,
type);
}
void Shell::RemoveAccessibilityEventHandler(ui::EventHandler* handler) {
accessibility_event_handler_manager_->RemoveAccessibilityEventHandler(
handler);
}
////////////////////////////////////////////////////////////////////////////////
// Shell, private:
Shell::Shell(std::unique_ptr<ShellDelegate> shell_delegate)
: brightness_control_delegate_(
std::make_unique<system::BrightnessControllerChromeos>()),
focus_cycler_(std::make_unique<FocusCycler>()),
ime_controller_(std::make_unique<ImeControllerImpl>()),
immersive_context_(std::make_unique<ImmersiveContextAsh>()),
webauthn_dialog_controller_(
std::make_unique<WebAuthNDialogControllerImpl>()),
in_session_auth_dialog_controller_(
std::make_unique<InSessionAuthDialogControllerImpl>()),
keyboard_brightness_control_delegate_(
std::make_unique<KeyboardBrightnessController>()),
locale_update_controller_(std::make_unique<LocaleUpdateControllerImpl>()),
parent_access_controller_(std::make_unique<ParentAccessControllerImpl>()),
session_controller_(std::make_unique<SessionControllerImpl>()),
feature_discover_reporter_(
std::make_unique<FeatureDiscoveryDurationReporterImpl>(
session_controller_.get())),
shell_delegate_(std::move(shell_delegate)),
shutdown_controller_(std::make_unique<ShutdownControllerImpl>()),
system_tray_notifier_(std::make_unique<SystemTrayNotifier>()),
native_cursor_manager_(nullptr) {
AccelerometerReader::GetInstance()->Initialize();
login_screen_controller_ =
std::make_unique<LoginScreenController>(system_tray_notifier_.get());
display_manager_ = ScreenAsh::CreateDisplayManager();
window_tree_host_manager_ = std::make_unique<WindowTreeHostManager>();
user_metrics_recorder_ = std::make_unique<UserMetricsRecorder>();
keyboard_controller_ =
std::make_unique<KeyboardControllerImpl>(session_controller_.get());
PowerStatus::Initialize();
session_controller_->AddObserver(this);
}
Shell::~Shell() {
TRACE_EVENT0("shutdown", "ash::Shell::Destructor");
#if DCHECK_IS_ON()
// All WindowEventDispatchers should be shutdown before the Shell is
// destroyed.
for (RootWindowController* rwc : GetAllRootWindowControllers()) {
DCHECK(rwc->GetHost()->dispatcher()->in_shutdown());
}
#endif
login_unlock_throughput_recorder_.reset();
hud_display::HUDDisplayView::Destroy();
// Observes `SessionController` and must be destroyed before it.
privacy_hub_controller_.reset();
microphone_privacy_switch_controller_.reset();
for (auto& observer : shell_observers_) {
observer.OnShellDestroying();
}
ash_dbus_services_.reset();
saved_desk_controller_.reset();
saved_desk_delegate_.reset();
desks_controller_->Shutdown();
user_metrics_recorder_->OnShellShuttingDown();
cros_display_config_.reset();
display_configuration_observer_.reset();
display_prefs_.reset();
display_alignment_controller_.reset();
refresh_rate_throttle_controller_.reset();
// Remove the focus from any window. This will prevent overhead and side
// effects (e.g. crashes) from changing focus during shutdown.
// See bug crbug.com/134502.
aura::client::GetFocusClient(GetPrimaryRootWindow())->FocusWindow(nullptr);
// Please keep in reverse order as in Init() because it's easy to miss one.
if (window_modality_controller_) {
window_modality_controller_.reset();
}
RemovePreTargetHandler(shell_tab_handler_.get());
shell_tab_handler_.reset();
RemovePreTargetHandler(magnifier_key_scroll_handler_.get());
magnifier_key_scroll_handler_.reset();
RemovePreTargetHandler(speech_feedback_handler_.get());
speech_feedback_handler_.reset();
RemovePreTargetHandler(control_v_histogram_recorder_.get());
RemovePreTargetHandler(accelerator_tracker_.get());
RemovePreTargetHandler(accelerator_filter_.get());
RemovePreTargetHandler(event_transformation_handler_.get());
if (back_gesture_event_handler_) {
RemovePreTargetHandler(back_gesture_event_handler_.get());
}
RemovePreTargetHandler(system_gesture_filter_.get());
RemoveAccessibilityEventHandler(mouse_cursor_filter_.get());
RemovePreTargetHandler(modality_filter_.get());
RemovePreTargetHandler(tooltip_controller_.get());
// Resets the text context menu implementation factory.
views::ViewsTextServicesContextMenuChromeos::SetImplFactory(
base::NullCallback());
wm_mode_controller_.reset();
event_rewriter_controller_.reset();
keyboard_modifier_metrics_recorder_.reset();
input_device_settings_dispatcher_.reset();
input_device_tracker_.reset();
input_device_settings_controller_.reset();
input_device_key_alias_manager_.reset();
screen_orientation_controller_.reset();
screen_layout_observer_.reset();
// Destroy the virtual keyboard controller before the tablet mode controller
// since the latters destructor triggers events that the former is listening
// to but no longer cares about.
keyboard_controller_->DestroyVirtualKeyboard();
// Depends on |tablet_mode_controller_|.
window_restore_controller_.reset();
shelf_controller_->Shutdown();
shelf_config_->Shutdown();
// Depends on `app_list_controller_` and `tablet_mode_controller_`.
app_list_feature_usage_metrics_.reset();
// Destroy |app_list_controller_| earlier than |tablet_mode_controller_| since
// the former may use the latter before destruction.
app_list_controller_.reset();
// Accelerometer file reader stops listening to tablet mode controller.
AccelerometerReader::GetInstance()->StopListenToTabletModeController();
if (features::AreGlanceablesEnabled()) {
// Close all glanceables so that all widgets are destroyed.
glanceables_controller_->DestroyUi();
}
// Destroy |ambient_controller_| before |assistant_controller_|.
ambient_controller_.reset();
// Destroy |assistant_controller_| earlier than |tablet_mode_controller_| so
// that the former will destroy the Assistant view hierarchy which has a
// dependency on the latter.
assistant_controller_.reset();
// Because this function will call |TabletModeController::RemoveObserver|, do
// it before destroying |tablet_mode_controller_|.
accessibility_controller_->Shutdown();
// Must be destructed before human_presence_orientation_controller_.
power_prefs_.reset();
// Must be destructed before the tablet mode and message center controllers,
// both of which these rely on.
snooping_protection_controller_.reset();
human_presence_orientation_controller_.reset();
snap_group_controller_.reset();
// Shutdown tablet mode controller early on since it has some observers which
// need to be removed. It will be destroyed later after all windows are closed
// since it might be accessed during this process.
tablet_mode_controller_->Shutdown();
// Shutdown the clipboard history controller to clean up the child windows and
// widgets that may be animating out.
clipboard_history_controller_->Shutdown();
toast_manager_.reset();
// Accesses root window containers.
logout_confirmation_controller_.reset();
adaptive_charging_controller_.reset();
// Drag-and-drop must be canceled prior to close all windows.
drag_drop_controller_.reset();
// Controllers who have WindowObserver added must be deleted
// before |window_tree_host_manager_| is deleted.
persistent_window_controller_.reset();
display_highlight_controller_.reset();
// VideoActivityNotifier must be deleted before |video_detector_| is
// deleted because it's observing video activity through
// VideoDetector::Observer interface.
video_activity_notifier_.reset();
video_detector_.reset();
color_enhancement_controller_.reset();
shadow_controller_.reset();
resize_shadow_controller_.reset();
raster_scale_controller_.reset();
// Has to happen before ~MruWindowTracker.
window_cycle_controller_.reset();
overview_controller_.reset();
game_dashboard_controller_.reset();
// This must be destroyed before deleting all the windows below in
// `CloseAllRootWindowChildWindows()`, since shutting down the session will
// need to access those windows and it will be a UAF.
// https://crbug.com/1350711.
capture_mode_controller_.reset();
// This must be called before deleting all the windows below in
// `CloseAllRootWindowChildWindows()` since host_windows(which gets destroyed)
// are needed for proper deletion of RoundedDisplayProviders.
window_tree_host_manager_->ShutdownRoundedDisplays();
// Close all widgets (including the shelf) and destroy all window containers.
CloseAllRootWindowChildWindows();
// Glanceables has a dependency on `tablet_mode_controller_`. Should be
// destroyed first to remove the tablet mode observer.
glanceables_controller_.reset();
glanceables_v2_controller_.reset();
multitask_menu_nudge_delegate_.reset();
tablet_mode_controller_.reset();
login_screen_controller_.reset();
system_notification_controller_.reset();
// Should be destroyed after Shelf and |system_notification_controller_|.
system_tray_model_.reset();
system_sounds_delegate_.reset();
// MultiDisplayMetricsController has a dependency on `mru_window_tracker_`.
multi_display_metrics_controller_.reset();
// MruWindowTracker must be destroyed after all windows have been deleted to
// avoid a possible crash when Shell is destroyed from a non-normal shutdown
// path. (crbug.com/485438).
mru_window_tracker_.reset();
// These need a valid Shell instance to clean up properly, so explicitly
// delete them before invalidating the instance.
// Alphabetical. TODO(oshima): sort.
autoclick_controller_.reset();
fullscreen_magnifier_controller_.reset();
tooltip_controller_.reset();
event_client_.reset();
toplevel_window_event_handler_.reset();
visibility_controller_.reset();
tray_action_.reset();
power_button_controller_.reset();
lock_state_controller_.reset();
backlights_forced_off_setter_.reset();
float_controller_.reset();
screen_pinning_controller_.reset();
multidevice_notification_presenter_.reset();
resolution_notification_controller_.reset();
mouse_cursor_filter_.reset();
modality_filter_.reset();
touch_transformer_controller_.reset();
key_accessibility_enabler_.reset();
display_speaker_controller_.reset();
screen_switch_check_controller_.reset();
ScreenAsh::CreateScreenForShutdown();
display_configuration_controller_.reset();
// Needs to be destructed before `ime_controler_`.
keyboard_backlight_color_controller_.reset();
rgb_keyboard_manager_.reset();
ash_color_provider_.reset();
// Depends on `dark_light_mode_controller_` and `wallpaper_controller_` so it
// should be destroyed first.
color_palette_controller_.reset();
// Depends on `geolocation_controller_` and `wallpaper_controller_`, so it
// must be destructed before the geolocation controller and wallpaper
// controller.
dark_light_mode_controller_.reset();
// These members access Shell in their destructors.
wallpaper_controller_.reset();
accessibility_controller_.reset();
accessibility_delegate_.reset();
accessibility_focus_ring_controller_.reset();
policy_recommendation_restorer_.reset();
ime_controller_.reset();
back_gesture_event_handler_.reset();
// Balances the Install() in Initialize().
views::FocusManagerFactory::Install(nullptr);
// ShelfWindowWatcher has window observers and a pointer to the shelf model.
shelf_window_watcher_.reset();
// Removes itself as an observer of |pref_service_|.
shelf_controller_.reset();
// NightLightControllerImpl depends on the PrefService, the window tree host
// manager, and `geolocation_controller_`, so it must be destructed before
// them. crbug.com/724231.
night_light_controller_ = nullptr;
// Similarly for DockedMagnifierController.
docked_magnifier_controller_ = nullptr;
// Similarly for PrivacyScreenController.
privacy_screen_controller_ = nullptr;
// Similarly for AutozoomControllerImpl
autozoom_controller_ = nullptr;
geolocation_controller_.reset();
// NearbyShareDelegateImpl must be destroyed before SessionController and
// NearbyShareControllerImpl.
nearby_share_delegate_.reset();
nearby_share_controller_.reset();
// Stop observing window activation changes before closing all windows.
focus_controller_->RemoveObserver(this);
// Depends on shelf owned by RootWindowController so destroy this before the
// |window_tree_host_manager_|.
clipboard_history_controller_.reset();
// This also deletes all RootWindows. Note that we invoke Shutdown() on
// WindowTreeHostManager before resetting |window_tree_host_manager_|, since
// destruction of its owned RootWindowControllers relies on the value.
window_tree_host_manager_->Shutdown();
// Depends on |focus_controller_|, so must be destroyed before.
window_tree_host_manager_.reset();
// The desks controller is destroyed after the window tree host manager and
// before the focus controller. At this point it is guaranteed that querying
// the active desk is no longer needed.
desks_controller_.reset();
tab_cluster_ui_controller_.reset();
focus_rules_ = nullptr;
focus_controller_.reset();
screen_position_controller_.reset();
display_color_manager_.reset();
projecting_observer_.reset();
projector_controller_.reset();
partial_magnifier_controller_.reset();
touch_selection_magnifier_runner_ash_.reset();
laser_pointer_controller_.reset();