ash/shell.cc

   1 // Copyright 2012 The Chromium Authors
   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 "ash/shell.h"
   6
   7 #include <algorithm>
   8 #include <memory>
   9 #include <string>
  10 #include <utility>
  11
  12 #include "ash/accelerators/accelerator_controller_impl.h"
  13 #include "ash/accelerators/ash_accelerator_configuration.h"
  14 #include "ash/accelerators/ash_focus_manager_factory.h"
  15 #include "ash/accelerators/magnifier_key_scroller.h"
  16 #include "ash/accelerators/pre_target_accelerator_handler.h"
  17 #include "ash/accelerators/spoken_feedback_toggler.h"
  18 #include "ash/accelerometer/accelerometer_reader.h"
  19 #include "ash/accessibility/accessibility_controller_impl.h"
  20 #include "ash/accessibility/accessibility_delegate.h"
  21 #include "ash/accessibility/autoclick/autoclick_controller.h"
  22 #include "ash/accessibility/chromevox/key_accessibility_enabler.h"
  23 #include "ash/accessibility/magnifier/docked_magnifier_controller.h"
  24 #include "ash/accessibility/magnifier/fullscreen_magnifier_controller.h"
  25 #include "ash/accessibility/magnifier/partial_magnifier_controller.h"
  26 #include "ash/accessibility/sticky_keys/sticky_keys_controller.h"
  27 #include "ash/accessibility/ui/accessibility_focus_ring_controller_impl.h"
  28 #include "ash/ambient/ambient_controller.h"
  29 #include "ash/app_list/app_list_controller_impl.h"
  30 #include "ash/app_list/app_list_feature_usage_metrics.h"
  31 #include "ash/assistant/assistant_controller_impl.h"
  32 #include "ash/calendar/calendar_controller.h"
  33 #include "ash/capture_mode/capture_mode_controller.h"
  34 #include "ash/child_accounts/parent_access_controller_impl.h"
  35 #include "ash/clipboard/clipboard_history_controller_impl.h"
  36 #include "ash/clipboard/control_v_histogram_recorder.h"
  37 #include "ash/color_enhancement/color_enhancement_controller.h"
  38 #include "ash/constants/ash_features.h"
  39 #include "ash/constants/ash_switches.h"
  40 #include "ash/controls/contextual_tooltip.h"
  41 #include "ash/curtain/security_curtain_controller_impl.h"
  42 #include "ash/dbus/ash_dbus_services.h"
  43 #include "ash/detachable_base/detachable_base_handler.h"
  44 #include "ash/detachable_base/detachable_base_notification_controller.h"
  45 #include "ash/display/cros_display_config.h"
  46 #include "ash/display/cursor_window_controller.h"
  47 #include "ash/display/display_alignment_controller.h"
  48 #include "ash/display/display_color_manager.h"
  49 #include "ash/display/display_configuration_controller.h"
  50 #include "ash/display/display_configuration_observer.h"
  51 #include "ash/display/display_error_observer.h"
  52 #include "ash/display/display_highlight_controller.h"
  53 #include "ash/display/display_prefs.h"
  54 #include "ash/display/display_shutdown_observer.h"
  55 #include "ash/display/event_transformation_handler.h"
  56 #include "ash/display/mouse_cursor_event_filter.h"
  57 #include "ash/display/persistent_window_controller.h"
  58 #include "ash/display/privacy_screen_controller.h"
  59 #include "ash/display/projecting_observer.h"
  60 #include "ash/display/refresh_rate_throttle_controller.h"
  61 #include "ash/display/resolution_notification_controller.h"
  62 #include "ash/display/screen_ash.h"
  63 #include "ash/display/screen_orientation_controller.h"
  64 #include "ash/display/screen_position_controller.h"
  65 #include "ash/display/window_tree_host_manager.h"
  66 #include "ash/drag_drop/drag_drop_controller.h"
  67 #include "ash/events/event_rewriter_controller_impl.h"
  68 #include "ash/fast_ink/laser/laser_pointer_controller.h"
  69 #include "ash/focus_cycler.h"
  70 #include "ash/frame/non_client_frame_view_ash.h"
  71 #include "ash/frame/snap_controller_impl.h"
  72 #include "ash/frame_throttler/frame_throttling_controller.h"
  73 #include "ash/glanceables/glanceables_controller.h"
  74 #include "ash/glanceables/glanceables_delegate.h"
  75 #include "ash/highlighter/highlighter_controller.h"
  76 #include "ash/host/ash_window_tree_host_init_params.h"
  77 #include "ash/hud_display/hud_display.h"
  78 #include "ash/ime/ime_controller_impl.h"
  79 #include "ash/in_session_auth/in_session_auth_dialog_controller_impl.h"
  80 #include "ash/in_session_auth/webauthn_dialog_controller_impl.h"
  81 #include "ash/keyboard/keyboard_controller_impl.h"
  82 #include "ash/keyboard/ui/keyboard_ui_factory.h"
  83 #include "ash/login/login_screen_controller.h"
  84 #include "ash/login_status.h"
  85 #include "ash/media/media_controller_impl.h"
  86 #include "ash/metrics/feature_discovery_duration_reporter_impl.h"
  87 #include "ash/metrics/login_unlock_throughput_recorder.h"
  88 #include "ash/metrics/user_metrics_recorder.h"
  89 #include "ash/multi_capture/multi_capture_service_client.h"
  90 #include "ash/multi_device_setup/multi_device_notification_presenter.h"
  91 #include "ash/policy/policy_recommendation_restorer.h"
  92 #include "ash/projector/projector_controller_impl.h"
  93 #include "ash/public/cpp/ash_prefs.h"
  94 #include "ash/public/cpp/desks_templates_delegate.h"
  95 #include "ash/public/cpp/holding_space/holding_space_controller.h"
  96 #include "ash/public/cpp/nearby_share_delegate.h"
  97 #include "ash/public/cpp/shelf_config.h"
  98 #include "ash/public/cpp/shelf_model.h"
  99 #include "ash/public/cpp/shell_window_ids.h"
 100 #include "ash/public/cpp/tab_cluster/tab_cluster_ui_controller.h"
 101 #include "ash/public/cpp/views_text_services_context_menu_impl.h"
 102 #include "ash/quick_pair/keyed_service/quick_pair_mediator.h"
 103 #include "ash/rgb_keyboard/rgb_keyboard_manager.h"
 104 #include "ash/root_window_controller.h"
 105 #include "ash/session/session_controller_impl.h"
 106 #include "ash/shelf/shelf_controller.h"
 107 #include "ash/shelf/shelf_window_watcher.h"
 108 #include "ash/shell_delegate.h"
 109 #include "ash/shell_init_params.h"
 110 #include "ash/shell_observer.h"
 111 #include "ash/shell_tab_handler.h"
 112 #include "ash/shutdown_controller_impl.h"
 113 #include "ash/style/ash_color_mixer.h"
 114 #include "ash/style/ash_color_provider.h"
 115 #include "ash/style/dark_light_mode_controller_impl.h"
 116 #include "ash/system/audio/display_speaker_controller.h"
 117 #include "ash/system/bluetooth/bluetooth_device_status_ui_handler.h"
 118 #include "ash/system/bluetooth/bluetooth_notification_controller.h"
 119 #include "ash/system/brightness/brightness_controller_chromeos.h"
 120 #include "ash/system/brightness_control_delegate.h"
 121 #include "ash/system/camera/autozoom_controller_impl.h"
 122 #include "ash/system/caps_lock_notification_controller.h"
 123 #include "ash/system/diagnostics/diagnostics_log_controller.h"
 124 #include "ash/system/firmware_update/firmware_update_notification_controller.h"
 125 #include "ash/system/geolocation/geolocation_controller.h"
 126 #include "ash/system/human_presence/human_presence_orientation_controller.h"
 127 #include "ash/system/human_presence/snooping_protection_controller.h"
 128 #include "ash/system/keyboard_brightness/keyboard_backlight_color_controller.h"
 129 #include "ash/system/keyboard_brightness/keyboard_brightness_controller.h"
 130 #include "ash/system/keyboard_brightness_control_delegate.h"
 131 #include "ash/system/locale/locale_update_controller_impl.h"
 132 #include "ash/system/machine_learning/user_settings_event_logger.h"
 133 #include "ash/system/media/media_notification_provider_impl.h"
 134 #include "ash/system/message_center/message_center_ash_impl.h"
 135 #include "ash/system/message_center/message_center_controller.h"
 136 #include "ash/system/model/system_tray_model.h"
 137 #include "ash/system/model/virtual_keyboard_model.h"
 138 #include "ash/system/nearby_share/nearby_share_controller_impl.h"
 139 #include "ash/system/network/sms_observer.h"
 140 #include "ash/system/night_light/night_light_controller_impl.h"
 141 #include "ash/system/pcie_peripheral/pcie_peripheral_notification_controller.h"
 142 #include "ash/system/power/adaptive_charging_controller.h"
 143 #include "ash/system/power/backlights_forced_off_setter.h"
 144 #include "ash/system/power/peripheral_battery_notifier.h"
 145 #include "ash/system/power/power_button_controller.h"
 146 #include "ash/system/power/power_event_observer.h"
 147 #include "ash/system/power/power_prefs.h"
 148 #include "ash/system/power/power_status.h"
 149 #include "ash/system/power/video_activity_notifier.h"
 150 #include "ash/system/privacy/screen_switch_check_controller.h"
 151 #include "ash/system/privacy_hub/privacy_hub_controller.h"
 152 #include "ash/system/screen_layout_observer.h"
 153 #include "ash/system/session/logout_confirmation_controller.h"
 154 #include "ash/system/status_area_widget.h"
 155 #include "ash/system/system_notification_controller.h"
 156 #include "ash/system/toast/toast_manager_impl.h"
 157 #include "ash/system/tray/system_tray_notifier.h"
 158 #include "ash/system/usb_peripheral/usb_peripheral_notification_controller.h"
 159 #include "ash/touch/ash_touch_transform_controller.h"
 160 #include "ash/touch/touch_devices_controller.h"
 161 #include "ash/tray_action/tray_action.h"
 162 #include "ash/utility/occlusion_tracker_pauser.h"
 163 #include "ash/wallpaper/wallpaper_controller_impl.h"
 164 #include "ash/wm/ash_focus_rules.h"
 165 #include "ash/wm/container_finder.h"
 166 #include "ash/wm/cursor_manager_chromeos.h"
 167 #include "ash/wm/desks/desks_controller.h"
 168 #include "ash/wm/desks/persistent_desks_bar/persistent_desks_bar_controller.h"
 169 #include "ash/wm/event_client_impl.h"
 170 #include "ash/wm/float/float_controller.h"
 171 #include "ash/wm/gestures/back_gesture/back_gesture_event_handler.h"
 172 #include "ash/wm/immersive_context_ash.h"
 173 #include "ash/wm/lock_state_controller.h"
 174 #include "ash/wm/mru_window_tracker.h"
 175 #include "ash/wm/multitask_menu_nudge_controller.h"
 176 #include "ash/wm/native_cursor_manager_ash.h"
 177 #include "ash/wm/overlay_event_filter.h"
 178 #include "ash/wm/overview/overview_controller.h"
 179 #include "ash/wm/resize_shadow_controller.h"
 180 #include "ash/wm/screen_pinning_controller.h"
 181 #include "ash/wm/system_gesture_event_filter.h"
 182 #include "ash/wm/system_modal_container_event_filter.h"
 183 #include "ash/wm/system_modal_container_layout_manager.h"
 184 #include "ash/wm/tablet_mode/tablet_mode_controller.h"
 185 #include "ash/wm/tablet_mode/tablet_mode_window_manager.h"
 186 #include "ash/wm/toplevel_window_event_handler.h"
 187 #include "ash/wm/video_detector.h"
 188 #include "ash/wm/window_animations.h"
 189 #include "ash/wm/window_cycle/window_cycle_controller.h"
 190 #include "ash/wm/window_positioner.h"
 191 #include "ash/wm/window_properties.h"
 192 #include "ash/wm/window_restore/window_restore_controller.h"
 193 #include "ash/wm/window_util.h"
 194 #include "ash/wm/wm_shadow_controller_delegate.h"
 195 #include "ash/wm/workspace_controller.h"
 196 #include "ash/wm_mode/wm_mode_controller.h"
 197 #include "base/bind.h"
 198 #include "base/callback_helpers.h"
 199 #include "base/check.h"
 200 #include "base/command_line.h"
 201 #include "base/memory/ptr_util.h"
 202 #include "base/notreached.h"
 203 #include "base/system/sys_info.h"
 204 #include "base/trace_event/trace_event.h"
 205 #include "chromeos/ash/components/dbus/usb/usbguard_client.h"
 206 #include "chromeos/ash/services/assistant/public/cpp/features.h"
 207 #include "chromeos/dbus/init/initialize_dbus_client.h"
 208 #include "chromeos/dbus/power/power_policy_controller.h"
 209 #include "chromeos/system/devicemode.h"
 210 #include "chromeos/ui/wm/features.h"
 211 #include "components/prefs/pref_registry_simple.h"
 212 #include "components/prefs/pref_service.h"
 213 #include "components/viz/host/host_frame_sink_manager.h"
 214 #include "dbus/bus.h"
 215 #include "media/capture/video/chromeos/video_capture_features_chromeos.h"
 216 #include "services/video_capture/public/mojom/multi_capture_service.mojom.h"
 217 #include "ui/aura/client/aura_constants.h"
 218 #include "ui/aura/env.h"
 219 #include "ui/aura/layout_manager.h"
 220 #include "ui/aura/window.h"
 221 #include "ui/aura/window_event_dispatcher.h"
 222 #include "ui/base/cursor/mojom/cursor_type.mojom-shared.h"
 223 #include "ui/base/ui_base_features.h"
 224 #include "ui/base/user_activity/user_activity_detector.h"
 225 #include "ui/chromeos/user_activity_power_manager_notifier.h"
 226 #include "ui/color/color_provider_manager.h"
 227 #include "ui/compositor/layer.h"
 228 #include "ui/compositor/layer_animator.h"
 229 #include "ui/display/display.h"
 230 #include "ui/display/manager/default_touch_transform_setter.h"
 231 #include "ui/display/manager/display_change_observer.h"
 232 #include "ui/display/manager/display_configurator.h"
 233 #include "ui/display/manager/display_manager.h"
 234 #include "ui/display/manager/touch_transform_setter.h"
 235 #include "ui/display/screen.h"
 236 #include "ui/display/types/native_display_delegate.h"
 237 #include "ui/events/event_target_iterator.h"
 238 #include "ui/gfx/geometry/insets.h"
 239 #include "ui/gfx/image/image_skia.h"
 240 #include "ui/message_center/message_center.h"
 241 #include "ui/ozone/public/ozone_platform.h"
 242 #include "ui/views/controls/views_text_services_context_menu_chromeos.h"
 243 #include "ui/views/corewm/tooltip_aura.h"
 244 #include "ui/views/corewm/tooltip_controller.h"
 245 #include "ui/views/focus/focus_manager_factory.h"
 246 #include "ui/views/widget/native_widget_aura.h"
 247 #include "ui/views/widget/widget.h"
 248 #include "ui/wm/core/accelerator_filter.h"
 249 #include "ui/wm/core/compound_event_filter.h"
 250 #include "ui/wm/core/focus_controller.h"
 251 #include "ui/wm/core/shadow_controller.h"
 252 #include "ui/wm/core/visibility_controller.h"
 253 #include "ui/wm/core/window_modality_controller.h"
 254
 255 namespace ash {
 256
 257 namespace {
 258
 259 using aura::Window;
 260 using views::Widget;
 261
 262 // A Corewm VisibilityController subclass that calls the Ash animation routine
 263 // so we can pick up our extended animations. See ash/wm/window_animations.h.
 264 class AshVisibilityController : public ::wm::VisibilityController {
 265  public:
 266   AshVisibilityController() = default;
 267
 268   AshVisibilityController(const AshVisibilityController&) = delete;
 269   AshVisibilityController& operator=(const AshVisibilityController&) = delete;
 270
 271   ~AshVisibilityController() override = default;
 272
 273  private:
 274   // Overridden from ::wm::VisibilityController:
 275   bool CallAnimateOnChildWindowVisibilityChanged(aura::Window* window,
 276                                                  bool visible) override {
 277     return AnimateOnChildWindowVisibilityChanged(window, visible);
 278   }
 279 };
 280
 281 }  // namespace
 282
 283 // static
 284 Shell* Shell::instance_ = nullptr;
 285
 286 ////////////////////////////////////////////////////////////////////////////////
 287 // Shell, public:
 288
 289 // static
 290 Shell* Shell::CreateInstance(ShellInitParams init_params) {
 291   CHECK(!instance_);
 292   instance_ = new Shell(std::move(init_params.delegate));
 293   instance_->Init(init_params.context_factory, init_params.local_state,
 294                   std::move(init_params.keyboard_ui_factory),
 295                   init_params.dbus_bus);
 296   return instance_;
 297 }
 298
 299 // static
 300 Shell* Shell::Get() {
 301   CHECK(instance_);
 302   return instance_;
 303 }
 304
 305 // static
 306 bool Shell::HasInstance() {
 307   return !!instance_;
 308 }
 309
 310 // static
 311 void Shell::DeleteInstance() {
 312   delete instance_;
 313 }
 314
 315 // static
 316 RootWindowController* Shell::GetPrimaryRootWindowController() {
 317   CHECK(HasInstance());
 318   return RootWindowController::ForWindow(GetPrimaryRootWindow());
 319 }
 320
 321 // static
 322 Shell::RootWindowControllerList Shell::GetAllRootWindowControllers() {
 323   CHECK(HasInstance());
 324   RootWindowControllerList root_window_controllers;
 325   for (aura::Window* root : GetAllRootWindows())
 326     root_window_controllers.push_back(RootWindowController::ForWindow(root));
 327   return root_window_controllers;
 328 }
 329
 330 // static
 331 RootWindowController* Shell::GetRootWindowControllerWithDisplayId(
 332     int64_t display_id) {
 333   CHECK(HasInstance());
 334   aura::Window* root = GetRootWindowForDisplayId(display_id);
 335   return root ? RootWindowController::ForWindow(root) : nullptr;
 336 }
 337
 338 // static
 339 aura::Window* Shell::GetRootWindowForDisplayId(int64_t display_id) {
 340   CHECK(HasInstance());
 341   return instance_->window_tree_host_manager_->GetRootWindowForDisplayId(
 342       display_id);
 343 }
 344
 345 // static
 346 aura::Window* Shell::GetPrimaryRootWindow() {
 347   CHECK(HasInstance());
 348   return instance_->window_tree_host_manager_->GetPrimaryRootWindow();
 349 }
 350
 351 // static
 352 void Shell::SetRootWindowForNewWindows(aura::Window* root) {
 353   display::Screen::GetScreen()->SetDisplayForNewWindows(
 354       display::Screen::GetScreen()->GetDisplayNearestWindow(root).id());
 355 }
 356
 357 // static
 358 aura::Window* Shell::GetRootWindowForNewWindows() {
 359   return GetRootWindowForDisplayId(
 360       display::Screen::GetScreen()->GetDisplayForNewWindows().id());
 361 }
 362
 363 // static
 364 aura::Window::Windows Shell::GetAllRootWindows() {
 365   CHECK(HasInstance());
 366   return instance_->window_tree_host_manager_->GetAllRootWindows();
 367 }
 368
 369 // static
 370 aura::Window* Shell::GetContainer(aura::Window* root_window, int container_id) {
 371   return root_window->GetChildById(container_id);
 372 }
 373
 374 // static
 375 const aura::Window* Shell::GetContainer(const aura::Window* root_window,
 376                                         int container_id) {
 377   return root_window->GetChildById(container_id);
 378 }
 379
 380 // static
 381 int Shell::GetOpenSystemModalWindowContainerId() {
 382   // The test boolean is not static to avoid leaking state between tests.
 383   if (Get()->simulate_modal_window_open_for_test_)
 384     return kShellWindowId_SystemModalContainer;
 385
 386   // Traverse all system modal containers, and find its direct child window
 387   // with "SystemModal" setting, and visible.
 388   for (aura::Window* root : Shell::GetAllRootWindows()) {
 389     for (int modal_window_id : kSystemModalContainerIds) {
 390       aura::Window* system_modal = root->GetChildById(modal_window_id);
 391       if (!system_modal)
 392         continue;
 393       for (const aura::Window* child : system_modal->children()) {
 394         if (child->GetProperty(aura::client::kModalKey) ==
 395                 ui::MODAL_TYPE_SYSTEM &&
 396             child->layer()->GetTargetVisibility()) {
 397           return modal_window_id;
 398         }
 399       }
 400     }
 401   }
 402   return -1;
 403 }
 404
 405 // static
 406 bool Shell::IsSystemModalWindowOpen() {
 407   return GetOpenSystemModalWindowContainerId() >= 0;
 408 }
 409
 410 display::DisplayConfigurator* Shell::display_configurator() {
 411   return display_manager_->configurator();
 412 }
 413
 414 void Shell::TrackInputMethodBounds(ArcInputMethodBoundsTracker* tracker) {
 415   system_tray_model()->virtual_keyboard()->SetInputMethodBoundsTrackerObserver(
 416       tracker);
 417 }
 418
 419 void Shell::UntrackTrackInputMethodBounds(
 420     ArcInputMethodBoundsTracker* tracker) {
 421   system_tray_model()
 422       ->virtual_keyboard()
 423       ->RemoveInputMethodBoundsTrackerObserver(tracker);
 424 }
 425
 426 std::unique_ptr<views::NonClientFrameView>
 427 Shell::CreateDefaultNonClientFrameView(views::Widget* widget) {
 428   // Use translucent-style window frames for dialogs.
 429   return std::make_unique<NonClientFrameViewAsh>(widget);
 430 }
 431
 432 void Shell::OnCastingSessionStartedOrStopped(bool started) {
 433   for (auto& observer : shell_observers_)
 434     observer.OnCastingSessionStartedOrStopped(started);
 435 }
 436
 437 void Shell::OnRootWindowAdded(aura::Window* root_window) {
 438   for (auto& observer : shell_observers_)
 439     observer.OnRootWindowAdded(root_window);
 440 }
 441
 442 void Shell::OnRootWindowWillShutdown(aura::Window* root_window) {
 443   for (auto& observer : shell_observers_)
 444     observer.OnRootWindowWillShutdown(root_window);
 445 }
 446
 447 void Shell::OnDictationStarted() {
 448   for (auto& observer : shell_observers_)
 449     observer.OnDictationStarted();
 450 }
 451
 452 void Shell::OnDictationEnded() {
 453   for (auto& observer : shell_observers_)
 454     observer.OnDictationEnded();
 455 }
 456
 457 bool Shell::IsInTabletMode() const {
 458   return tablet_mode_controller()->InTabletMode();
 459 }
 460
 461 bool Shell::ShouldSaveDisplaySettings() {
 462   return !(
 463       screen_orientation_controller_->ignore_display_configuration_updates() ||
 464       // Save display settings if we don't need to show the display change
 465       // dialog.
 466       resolution_notification_controller_->ShouldShowDisplayChangeDialog());
 467 }
 468
 469 ::wm::ActivationClient* Shell::activation_client() {
 470   return focus_controller_.get();
 471 }
 472
 473 bool Shell::HasPrimaryStatusArea() {
 474   return !!GetPrimaryRootWindowController()->GetStatusAreaWidget();
 475 }
 476
 477 void Shell::SetLargeCursorSizeInDip(int large_cursor_size_in_dip) {
 478   window_tree_host_manager_->cursor_window_controller()
 479       ->SetLargeCursorSizeInDip(large_cursor_size_in_dip);
 480 }
 481
 482 void Shell::SetCursorColor(SkColor cursor_color) {
 483   window_tree_host_manager_->cursor_window_controller()->SetCursorColor(
 484       cursor_color);
 485 }
 486
 487 void Shell::UpdateCursorCompositingEnabled() {
 488   SetCursorCompositingEnabled(
 489       window_tree_host_manager_->cursor_window_controller()
 490           ->ShouldEnableCursorCompositing());
 491 }
 492
 493 void Shell::SetCursorCompositingEnabled(bool enabled) {
 494   CursorWindowController* cursor_window_controller =
 495       window_tree_host_manager_->cursor_window_controller();
 496
 497   if (cursor_window_controller->is_cursor_compositing_enabled() == enabled)
 498     return;
 499   cursor_window_controller->SetCursorCompositingEnabled(enabled);
 500   native_cursor_manager_->SetNativeCursorEnabled(!enabled);
 501 }
 502
 503 void Shell::DoInitialWorkspaceAnimation() {
 504   // Uses the active desk's workspace.
 505   auto* workspace = GetActiveWorkspaceController(GetPrimaryRootWindow());
 506   DCHECK(workspace);
 507   workspace->DoInitialAnimation();
 508 }
 509
 510 void Shell::ShowContextMenu(const gfx::Point& location_in_screen,
 511                             ui::MenuSourceType source_type) {
 512   // Bail with no active user session, in the lock screen, or in app/kiosk mode.
 513   if (session_controller_->NumberOfLoggedInUsers() < 1 ||
 514       session_controller_->IsScreenLocked() ||
 515       session_controller_->IsRunningInAppMode()) {
 516     return;
 517   }
 518
 519   aura::Window* root = window_util::GetRootWindowAt(location_in_screen);
 520   RootWindowController::ForWindow(root)->ShowContextMenu(location_in_screen,
 521                                                          source_type);
 522 }
 523
 524 void Shell::AddShellObserver(ShellObserver* observer) {
 525   shell_observers_.AddObserver(observer);
 526 }
 527
 528 void Shell::RemoveShellObserver(ShellObserver* observer) {
 529   shell_observers_.RemoveObserver(observer);
 530 }
 531
 532 void Shell::ShutdownEventDispatch() {
 533   for (aura::Window* root : GetAllRootWindows())
 534     aura::client::SetDragDropClient(root, nullptr);
 535
 536   // Stop dispatching events (e.g. synthesized mouse exits from window close).
 537   // https://crbug.com/874156
 538   for (RootWindowController* rwc : GetAllRootWindowControllers())
 539     rwc->GetHost()->dispatcher()->Shutdown();
 540 }
 541
 542 void Shell::UpdateAfterLoginStatusChange(LoginStatus status) {
 543   for (auto* root_window_controller : GetAllRootWindowControllers())
 544     root_window_controller->UpdateAfterLoginStatusChange(status);
 545 }
 546
 547 void Shell::NotifyFullscreenStateChanged(bool is_fullscreen,
 548                                          aura::Window* container) {
 549   for (auto& observer : shell_observers_)
 550     observer.OnFullscreenStateChanged(is_fullscreen, container);
 551 }
 552
 553 void Shell::NotifyPinnedStateChanged(aura::Window* pinned_window) {
 554   for (auto& observer : shell_observers_)
 555     observer.OnPinnedStateChanged(pinned_window);
 556 }
 557
 558 void Shell::NotifyUserWorkAreaInsetsChanged(aura::Window* root_window) {
 559   for (auto& observer : shell_observers_)
 560     observer.OnUserWorkAreaInsetsChanged(root_window);
 561 }
 562
 563 void Shell::NotifyShelfAlignmentChanged(aura::Window* root_window,
 564                                         ShelfAlignment old_alignment) {
 565   for (auto& observer : shell_observers_)
 566     observer.OnShelfAlignmentChanged(root_window, old_alignment);
 567 }
 568
 569 ////////////////////////////////////////////////////////////////////////////////
 570 // Shell, private:
 571
 572 Shell::Shell(std::unique_ptr<ShellDelegate> shell_delegate)
 573     : brightness_control_delegate_(
 574           std::make_unique<system::BrightnessControllerChromeos>()),
 575       focus_cycler_(std::make_unique<FocusCycler>()),
 576       ime_controller_(std::make_unique<ImeControllerImpl>()),
 577       immersive_context_(std::make_unique<ImmersiveContextAsh>()),
 578       webauthn_dialog_controller_(
 579           std::make_unique<WebAuthNDialogControllerImpl>()),
 580       in_session_auth_dialog_controller_(
 581           std::make_unique<InSessionAuthDialogControllerImpl>()),
 582       keyboard_brightness_control_delegate_(
 583           std::make_unique<KeyboardBrightnessController>()),
 584       locale_update_controller_(std::make_unique<LocaleUpdateControllerImpl>()),
 585       parent_access_controller_(std::make_unique<ParentAccessControllerImpl>()),
 586       session_controller_(std::make_unique<SessionControllerImpl>()),
 587       feature_discover_reporter_(
 588           std::make_unique<FeatureDiscoveryDurationReporterImpl>(
 589               session_controller_.get())),
 590       shell_delegate_(std::move(shell_delegate)),
 591       shutdown_controller_(std::make_unique<ShutdownControllerImpl>()),
 592       system_tray_notifier_(std::make_unique<SystemTrayNotifier>()),
 593       native_cursor_manager_(nullptr) {
 594   AccelerometerReader::GetInstance()->Initialize();
 595
 596   login_screen_controller_ =
 597       std::make_unique<LoginScreenController>(system_tray_notifier_.get());
 598   display_manager_ = ScreenAsh::CreateDisplayManager();
 599   window_tree_host_manager_ = std::make_unique<WindowTreeHostManager>();
 600   user_metrics_recorder_ = std::make_unique<UserMetricsRecorder>();
 601   keyboard_controller_ =
 602       std::make_unique<KeyboardControllerImpl>(session_controller_.get());
 603
 604   PowerStatus::Initialize();
 605
 606   session_controller_->AddObserver(this);
 607 }
 608
 609 Shell::~Shell() {
 610   TRACE_EVENT0("shutdown", "ash::Shell::Destructor");
 611 #if DCHECK_IS_ON()
 612   // All WindowEventDispatchers should be shutdown before the Shell is
 613   // destroyed.
 614   for (RootWindowController* rwc : GetAllRootWindowControllers())
 615     DCHECK(rwc->GetHost()->dispatcher()->in_shutdown());
 616 #endif
 617   login_unlock_throughput_recorder_.reset();
 618
 619   hud_display::HUDDisplayView::Destroy();
 620
 621   // Observes `SessionController` and must be destroyed before it.
 622   privacy_hub_controller_.reset();
 623
 624   for (auto& observer : shell_observers_)
 625     observer.OnShellDestroying();
 626
 627   ash_dbus_services_.reset();
 628
 629   desks_templates_delegate_.reset();
 630   desks_controller_->Shutdown();
 631
 632   user_metrics_recorder_->OnShellShuttingDown();
 633
 634   cros_display_config_.reset();
 635   display_configuration_observer_.reset();
 636   display_prefs_.reset();
 637   display_alignment_controller_.reset();
 638   refresh_rate_throttle_controller_.reset();
 639
 640   // Remove the focus from any window. This will prevent overhead and side
 641   // effects (e.g. crashes) from changing focus during shutdown.
 642   // See bug crbug.com/134502.
 643   aura::client::GetFocusClient(GetPrimaryRootWindow())->FocusWindow(nullptr);
 644
 645   // Please keep in reverse order as in Init() because it's easy to miss one.
 646   if (window_modality_controller_)
 647     window_modality_controller_.reset();
 648
 649   RemovePreTargetHandler(shell_tab_handler_.get());
 650   shell_tab_handler_.reset();
 651
 652   RemovePreTargetHandler(magnifier_key_scroll_handler_.get());
 653   magnifier_key_scroll_handler_.reset();
 654
 655   RemovePreTargetHandler(speech_feedback_handler_.get());
 656   speech_feedback_handler_.reset();
 657
 658   RemovePreTargetHandler(overlay_filter_.get());
 659   overlay_filter_.reset();
 660
 661   RemovePreTargetHandler(control_v_histogram_recorder_.get());
 662   RemovePreTargetHandler(accelerator_filter_.get());
 663   RemovePreTargetHandler(event_transformation_handler_.get());
 664   if (back_gesture_event_handler_)
 665     RemovePreTargetHandler(back_gesture_event_handler_.get());
 666   RemovePreTargetHandler(toplevel_window_event_handler_.get());
 667   RemovePostTargetHandler(toplevel_window_event_handler_.get());
 668   RemovePreTargetHandler(system_gesture_filter_.get());
 669   RemovePreTargetHandler(mouse_cursor_filter_.get());
 670   RemovePreTargetHandler(modality_filter_.get());
 671   RemovePreTargetHandler(tooltip_controller_.get());
 672
 673   // Resets the text context menu implementation factory.
 674   views::ViewsTextServicesContextMenuChromeos::SetImplFactory(
 675       base::NullCallback());
 676
 677   wm_mode_controller_.reset();
 678
 679   event_rewriter_controller_.reset();
 680
 681   screen_orientation_controller_.reset();
 682   screen_layout_observer_.reset();
 683
 684   // Destroy the virtual keyboard controller before the tablet mode controller
 685   // since the latters destructor triggers events that the former is listening
 686   // to but no longer cares about.
 687   keyboard_controller_->DestroyVirtualKeyboard();
 688
 689   // Depends on |tablet_mode_controller_|.
 690   window_restore_controller_.reset();
 691   shelf_controller_->Shutdown();
 692   shelf_config_->Shutdown();
 693
 694   // Destroy PersistentDesksBarController before `overview_controller_`,
 695   // `tablet_mode_controller_`, `desks_controller_` and
 696   // `app_list_controller_` that it observes.
 697   persistent_desks_bar_controller_.reset();
 698
 699   // Depends on `app_list_controller_` and `tablet_mode_controller_`.
 700   app_list_feature_usage_metrics_.reset();
 701
 702   // Destroy |app_list_controller_| earlier than |tablet_mode_controller_| since
 703   // the former may use the latter before destruction.
 704   app_list_controller_.reset();
 705
 706   // Accelerometer file reader stops listening to tablet mode controller.
 707   AccelerometerReader::GetInstance()->StopListenToTabletModeController();
 708
 709   if (features::AreGlanceablesEnabled()) {
 710     // Close all glanceables so that all widgets are destroyed.
 711     glanceables_controller_->DestroyUi();
 712   }
 713
 714   // Destroy |ambient_controller_| before |assistant_controller_|.
 715   ambient_controller_.reset();
 716
 717   // Destroy |assistant_controller_| earlier than |tablet_mode_controller_| so
 718   // that the former will destroy the Assistant view hierarchy which has a
 719   // dependency on the latter.
 720   assistant_controller_.reset();
 721
 722   // Because this function will call |TabletModeController::RemoveObserver|, do
 723   // it before destroying |tablet_mode_controller_|.
 724   accessibility_controller_->Shutdown();
 725
 726   // Must be destructed before human_presence_orientation_controller_.
 727   power_prefs_.reset();
 728
 729   // Must be destructed before the tablet mode and message center controllers,
 730   // both of which these rely on.
 731   snooping_protection_controller_.reset();
 732   human_presence_orientation_controller_.reset();
 733
 734   // Shutdown tablet mode controller early on since it has some observers which
 735   // need to be removed. It will be destroyed later after all windows are closed
 736   // since it might be accessed during this process.
 737   tablet_mode_controller_->Shutdown();
 738
 739   // Shutdown the clipboard history controller to clean up the child windows and
 740   // widgets that may be animating out.
 741   clipboard_history_controller_->Shutdown();
 742
 743   // Destroy UserSettingsEventLogger before |system_tray_model_| and
 744   // |video_detector_| which it observes.
 745   ml::UserSettingsEventLogger::DeleteInstance();
 746
 747   toast_manager_.reset();
 748
 749   // Accesses root window containers.
 750   logout_confirmation_controller_.reset();
 751
 752   adaptive_charging_controller_.reset();
 753
 754   // Drag-and-drop must be canceled prior to close all windows.
 755   drag_drop_controller_.reset();
 756
 757   // Controllers who have WindowObserver added must be deleted
 758   // before |window_tree_host_manager_| is deleted.
 759   persistent_window_controller_.reset();
 760
 761   display_highlight_controller_.reset();
 762
 763   // VideoActivityNotifier must be deleted before |video_detector_| is
 764   // deleted because it's observing video activity through
 765   // VideoDetector::Observer interface.
 766   video_activity_notifier_.reset();
 767   video_detector_.reset();
 768   color_enhancement_controller_.reset();
 769
 770   shadow_controller_.reset();
 771   resize_shadow_controller_.reset();
 772
 773   // Has to happen before ~MruWindowTracker.
 774   window_cycle_controller_.reset();
 775   overview_controller_.reset();
 776
 777   // This must be destroyed before deleting all the windows below in
 778   // `CloseAllRootWindowChildWindows()`, since shutting down the session will
 779   // need to access those windows and it will be a UAF.
 780   // https://crbug.com/1350711.
 781   capture_mode_controller_.reset();
 782
 783   // Close all widgets (including the shelf) and destroy all window containers.
 784   CloseAllRootWindowChildWindows();
 785
 786   // Glanceables has a dependency on `tablet_mode_controller_`. Should be
 787   // destroyed first to remove the tablet mode observer.
 788   glanceables_controller_.reset();
 789
 790   multitask_menu_nudge_controller_.reset();
 791   tablet_mode_controller_.reset();
 792   login_screen_controller_.reset();
 793   system_notification_controller_.reset();
 794   // Should be destroyed after Shelf and |system_notification_controller_|.
 795   system_tray_model_.reset();
 796
 797   // MruWindowTracker must be destroyed after all windows have been deleted to
 798   // avoid a possible crash when Shell is destroyed from a non-normal shutdown
 799   // path. (crbug.com/485438).
 800   mru_window_tracker_.reset();
 801
 802   // These need a valid Shell instance to clean up properly, so explicitly
 803   // delete them before invalidating the instance.
 804   // Alphabetical. TODO(oshima): sort.
 805   autoclick_controller_.reset();
 806   fullscreen_magnifier_controller_.reset();
 807   tooltip_controller_.reset();
 808   event_client_.reset();
 809   toplevel_window_event_handler_.reset();
 810   visibility_controller_.reset();
 811
 812   tray_action_.reset();
 813
 814   power_button_controller_.reset();
 815   lock_state_controller_.reset();
 816   backlights_forced_off_setter_.reset();
 817
 818   float_controller_.reset();
 819   screen_pinning_controller_.reset();
 820
 821   multidevice_notification_presenter_.reset();
 822   resolution_notification_controller_.reset();
 823   mouse_cursor_filter_.reset();
 824   modality_filter_.reset();
 825
 826   touch_transformer_controller_.reset();
 827   highlighter_controller_.reset();
 828   key_accessibility_enabler_.reset();
 829
 830   display_speaker_controller_.reset();
 831   screen_switch_check_controller_.reset();
 832
 833   ScreenAsh::CreateScreenForShutdown();
 834   display_configuration_controller_.reset();
 835
 836   // Needs to be destructed before `ime_controler_`.
 837   keyboard_backlight_color_controller_.reset();
 838   rgb_keyboard_manager_.reset();
 839
 840   ash_color_provider_.reset();
 841
 842   // Depends on `geolocation_controller_` and `wallpaper_controller_`, so it
 843   // must be destructed before the geolocation controller and wallpaper
 844   // controller.
 845   dark_light_mode_controller_.reset();
 846
 847   // These members access Shell in their destructors.
 848   wallpaper_controller_.reset();
 849   accessibility_controller_.reset();
 850   accessibility_delegate_.reset();
 851   accessibility_focus_ring_controller_.reset();
 852   policy_recommendation_restorer_.reset();
 853   ime_controller_.reset();
 854   back_gesture_event_handler_.reset();
 855
 856   // Balances the Install() in Initialize().
 857   views::FocusManagerFactory::Install(nullptr);
 858
 859   // ShelfWindowWatcher has window observers and a pointer to the shelf model.
 860   shelf_window_watcher_.reset();
 861
 862   // Removes itself as an observer of |pref_service_|.
 863   shelf_controller_.reset();
 864
 865   // NightLightControllerImpl depends on the PrefService, the window tree host
 866   // manager, and `geolocation_controller_`, so it must be destructed before
 867   // them. crbug.com/724231.
 868   night_light_controller_ = nullptr;
 869   // Similarly for DockedMagnifierController.
 870   docked_magnifier_controller_ = nullptr;
 871   // Similarly for PrivacyScreenController.
 872   privacy_screen_controller_ = nullptr;
 873   // Similarly for AutozoomControllerImpl
 874   autozoom_controller_ = nullptr;
 875
 876   geolocation_controller_.reset();
 877
 878   // NearbyShareDelegateImpl must be destroyed before SessionController and
 879   // NearbyShareControllerImpl.
 880   nearby_share_delegate_.reset();
 881   nearby_share_controller_.reset();
 882
 883   // Stop observing window activation changes before closing all windows.
 884   focus_controller_->RemoveObserver(this);
 885
 886   // Depends on shelf owned by RootWindowController so destroy this before the
 887   // |window_tree_host_manager_|.
 888   clipboard_history_controller_.reset();
 889
 890   // This also deletes all RootWindows. Note that we invoke Shutdown() on
 891   // WindowTreeHostManager before resetting |window_tree_host_manager_|, since
 892   // destruction of its owned RootWindowControllers relies on the value.
 893   window_tree_host_manager_->Shutdown();
 894
 895   // Depends on |focus_controller_|, so must be destroyed before.
 896   window_tree_host_manager_.reset();
 897
 898   // The desks controller is destroyed after the window tree host manager and
 899   // before the focus controller. At this point it is guaranteed that querying
 900   // the active desk is no longer needed.
 901   desks_controller_.reset();
 902
 903   tab_cluster_ui_controller_.reset();
 904
 905   focus_rules_ = nullptr;
 906   focus_controller_.reset();
 907   screen_position_controller_.reset();
 908
 909   display_color_manager_.reset();
 910   projecting_observer_.reset();
 911
 912   projector_controller_.reset();
 913
 914   partial_magnifier_controller_.reset();
 915
 916   laser_pointer_controller_.reset();
 917
 918   if (display_change_observer_)
 919     display_manager_->configurator()->RemoveObserver(
 920         display_change_observer_.get());
 921   if (display_error_observer_)
 922     display_manager_->configurator()->RemoveObserver(
 923         display_error_observer_.get());
 924   display_change_observer_.reset();
 925   display_shutdown_observer_.reset();
 926
 927   keyboard_controller_.reset();
 928
 929   PowerStatus::Shutdown();
 930   // Depends on SessionController.
 931   power_event_observer_.reset();
 932
 933   session_controller_->RemoveObserver(this);
 934   // TouchDevicesController depends on the PrefService and must be destructed
 935   // before it.
 936   touch_devices_controller_ = nullptr;
 937   // DetachableBaseNotificationController depends on DetachableBaseHandler, and
 938   // has to be destructed before it.
 939   detachable_base_notification_controller_.reset();
 940   // DetachableBaseHandler depends on the PrefService and must be destructed
 941   // before it.
 942   detachable_base_handler_.reset();
 943
 944   diagnostics_log_controller_.reset();
 945
 946   firmware_update_notification_controller_.reset();
 947
 948   pcie_peripheral_notification_controller_.reset();
 949
 950   usb_peripheral_notification_controller_.reset();
 951
 952   message_center_ash_impl_.reset();
 953
 954   // Destroys the MessageCenter singleton, so must happen late.
 955   message_center_controller_.reset();
 956
 957   // `HoldingSpaceController` observes `SessionController` and must be
 958   // destructed before it.
 959   holding_space_controller_.reset();
 960
 961   // `CalendarController` observes `SessionController` and must be destructed
 962   // before it.
 963   calendar_controller_.reset();
 964
 965   shell_delegate_.reset();
 966
 967   multi_capture_service_client_.reset();
 968
 969   UsbguardClient::Shutdown();
 970
 971   // Must be shut down after detachable_base_handler_.
 972   HammerdClient::Shutdown();
 973
 974   for (auto& observer : shell_observers_)
 975     observer.OnShellDestroyed();
 976
 977   DCHECK(instance_ == this);
 978   instance_ = nullptr;
 979 }
 980
 981 void Shell::Init(
 982     ui::ContextFactory* context_factory,
 983     PrefService* local_state,
 984     std::unique_ptr<keyboard::KeyboardUIFactory> keyboard_ui_factory,
 985     scoped_refptr<dbus::Bus> dbus_bus) {
 986   login_unlock_throughput_recorder_ =
 987       std::make_unique<LoginUnlockThroughputRecorder>();
 988
 989   // Required by DetachableBaseHandler.
 990   chromeos::InitializeDBusClient<HammerdClient>(dbus_bus.get());
 991
 992   chromeos::InitializeDBusClient<UsbguardClient>(dbus_bus.get());
 993
 994   local_state_ = local_state;
 995
 996   // This creates the MessageCenter object which is used by some other objects
 997   // initialized here, so it needs to come early.
 998   message_center_controller_ = std::make_unique<MessageCenterController>();
 999
1000   message_center_ash_impl_ = std::make_unique<MessageCenterAshImpl>();
1001
1002   // These controllers call Shell::Get() in their constructors, so they cannot
1003   // be in the member initialization list.
1004   if (features::IsCrosPrivacyHubEnabled()) {
1005     privacy_hub_controller_ = std::make_unique<PrivacyHubController>();
1006   }
1007   touch_devices_controller_ = std::make_unique<TouchDevicesController>();
1008   detachable_base_handler_ =
1009       std::make_unique<DetachableBaseHandler>(local_state_);
1010   detachable_base_notification_controller_ =
1011       std::make_unique<DetachableBaseNotificationController>(
1012           detachable_base_handler_.get());
1013   display_speaker_controller_ = std::make_unique<DisplaySpeakerController>();
1014   policy_recommendation_restorer_ =
1015       std::make_unique<PolicyRecommendationRestorer>();
1016   screen_switch_check_controller_ =
1017       std::make_unique<ScreenSwitchCheckController>();
1018   multidevice_notification_presenter_ =
1019       std::make_unique<MultiDeviceNotificationPresenter>(
1020           message_center::MessageCenter::Get());
1021   media_controller_ = std::make_unique<MediaControllerImpl>();
1022   media_notification_provider_ =
1023       std::make_unique<MediaNotificationProviderImpl>(
1024           shell_delegate_->GetMediaSessionService());
1025
1026   tablet_mode_controller_ = std::make_unique<TabletModeController>();
1027
1028   if (features::IsRgbKeyboardEnabled()) {
1029     rgb_keyboard_manager_ =
1030         std::make_unique<RgbKeyboardManager>(ime_controller_.get());
1031   }
1032
1033   // Observes the tablet mode controller if any hps feature is enabled.
1034   if (features::IsSnoopingProtectionEnabled() ||
1035       features::IsQuickDimEnabled()) {
1036     human_presence_orientation_controller_ =
1037         std::make_unique<HumanPresenceOrientationController>();
1038   }
1039
1040   // Construct SnoopingProtectionController, must be constructed after
1041   // HumanPresenceOrientationController.
1042   if (features::IsSnoopingProtectionEnabled()) {
1043     snooping_protection_controller_ =
1044         std::make_unique<SnoopingProtectionController>();
1045   }
1046
1047   // Manages lifetime of DiagnosticApp logs.
1048   if (features::IsLogControllerForDiagnosticsAppEnabled()) {
1049     diagnostics_log_controller_ =
1050         std::make_unique<diagnostics::DiagnosticsLogController>();
1051   }
1052
1053   firmware_update_notification_controller_ =
1054       std::make_unique<FirmwareUpdateNotificationController>(
1055           message_center::MessageCenter::Get());
1056
1057   pcie_peripheral_notification_controller_ =
1058       std::make_unique<PciePeripheralNotificationController>(
1059           message_center::MessageCenter::Get());
1060
1061   usb_peripheral_notification_controller_ =
1062       std::make_unique<UsbPeripheralNotificationController>(
1063           message_center::MessageCenter::Get());
1064
1065   accessibility_focus_ring_controller_ =
1066       std::make_unique<AccessibilityFocusRingControllerImpl>();
1067   accessibility_delegate_.reset(shell_delegate_->CreateAccessibilityDelegate());
1068   accessibility_controller_ = std::make_unique<AccessibilityControllerImpl>();
1069   toast_manager_ = std::make_unique<ToastManagerImpl>();
1070
1071   peripheral_battery_listener_ = std::make_unique<PeripheralBatteryListener>();
1072
1073   peripheral_battery_notifier_ = std::make_unique<PeripheralBatteryNotifier>(
1074       peripheral_battery_listener_.get());
1075   power_event_observer_ = std::make_unique<PowerEventObserver>();
1076   window_cycle_controller_ = std::make_unique<WindowCycleController>();
1077   multitask_menu_nudge_controller_ =
1078       std::make_unique<MultitaskMenuNudgeController>();
1079
1080   capture_mode_controller_ = std::make_unique<CaptureModeController>(
1081       shell_delegate_->CreateCaptureModeDelegate());
1082
1083   // Accelerometer file reader starts listening to tablet mode controller.
1084   AccelerometerReader::GetInstance()->StartListenToTabletModeController();
1085
1086   // Install the custom factory early on so that views::FocusManagers for Tray,
1087   // Shelf, and WallPaper could be created by the factory.
1088   views::FocusManagerFactory::Install(new AshFocusManagerFactory);
1089
1090   wallpaper_controller_ = WallpaperControllerImpl::Create(local_state_);
1091
1092   if (features::IsRgbKeyboardEnabled()) {
1093     // Initialized after |wallpaper_controller_| because we will need to observe
1094     // when the extracted wallpaper color changes.
1095     keyboard_backlight_color_controller_ =
1096         std::make_unique<KeyboardBacklightColorController>();
1097   }
1098
1099   window_positioner_ = std::make_unique<WindowPositioner>();
1100
1101   native_cursor_manager_ = new NativeCursorManagerAsh;
1102   cursor_manager_ =
1103       std::make_unique<CursorManager>(base::WrapUnique(native_cursor_manager_));
1104
1105   InitializeDisplayManager();
1106
1107   // RefreshFontParams depends on display prefs.
1108   display_manager_->RefreshFontParams();
1109
1110   // This will initialize aura::Env which requires |display_manager_| to
1111   // be initialized first.
1112   aura::Env* env = aura::Env::GetInstance();
1113   if (context_factory)
1114     env->set_context_factory(context_factory);
1115
1116   ash_color_provider_ = std::make_unique<AshColorProvider>();
1117   ui::ColorProviderManager::Get().AppendColorProviderInitializer(
1118       base::BindRepeating(AddCrosStylesColorMixer));
1119   ui::ColorProviderManager::Get().AppendColorProviderInitializer(
1120       base::BindRepeating(AddAshColorMixer));
1121
1122   // Geolocation controller needs to be created before any `ScheduledFeature`
1123   // subclasses such as night light and dark mode controllers because
1124   // `ScheduledFeature` ctor will access `geolocation_controller_` from
1125   // `Shell`.
1126   geolocation_controller_ = std::make_unique<GeolocationController>(
1127       shell_delegate_->GetGeolocationUrlLoaderFactory());
1128
1129   // Night Light depends on the display manager, the display color manager,
1130   // aura::Env, and geolocation controller, so initialize it after all have
1131   // been initialized.
1132   night_light_controller_ = std::make_unique<NightLightControllerImpl>();
1133
1134   dark_light_mode_controller_ = std::make_unique<DarkLightModeControllerImpl>();
1135
1136   // Privacy Screen depends on the display manager, so initialize it after
1137   // display manager was properly initialized.
1138   privacy_screen_controller_ = std::make_unique<PrivacyScreenController>();
1139
1140   if (media::ShouldEnableAutoFraming())
1141     autozoom_controller_ = std::make_unique<AutozoomControllerImpl>();
1142
1143   // Fast Pair depends on the display manager, so initialize it after
1144   // display manager was properly initialized.
1145   if (base::FeatureList::IsEnabled(features::kFastPair)) {
1146     quick_pair_mediator_ = quick_pair::Mediator::Factory::Create();
1147   }
1148
1149   // The WindowModalityController needs to be at the front of the input event
1150   // pretarget handler list to ensure that it processes input events when modal
1151   // windows are active.
1152   window_modality_controller_ =
1153       std::make_unique<::wm::WindowModalityController>(this, env);
1154
1155   event_rewriter_controller_ = std::make_unique<EventRewriterControllerImpl>();
1156
1157   env_filter_ = std::make_unique<::wm::CompoundEventFilter>();
1158   AddPreTargetHandler(env_filter_.get());
1159
1160   // FocusController takes ownership of AshFocusRules.
1161   focus_rules_ = new AshFocusRules();
1162   focus_controller_ = std::make_unique<::wm::FocusController>(focus_rules_);
1163   focus_controller_->AddObserver(this);
1164
1165   overview_controller_ = std::make_unique<OverviewController>();
1166
1167   screen_position_controller_ = std::make_unique<ScreenPositionController>();
1168
1169   frame_throttling_controller_ = std::make_unique<FrameThrottlingController>(
1170       context_factory->GetHostFrameSinkManager());
1171
1172   if (features::IsTabClusterUIEnabled())
1173     tab_cluster_ui_controller_ = std::make_unique<TabClusterUIController>();
1174
1175   window_tree_host_manager_->Start();
1176   AshWindowTreeHostInitParams ash_init_params;
1177   window_tree_host_manager_->CreatePrimaryHost(ash_init_params);
1178
1179   // Create the desks controller right after the window tree host manager is
1180   // started, and before anything else is created, including the initialization
1181   // of the hosts and the root window controllers. Many things may need to query
1182   // the active desk, even at this early stage. For this the controller must be
1183   // present at all times. The desks controller also depends on the focus
1184   // controller.
1185   desks_controller_ = std::make_unique<DesksController>();
1186   desks_templates_delegate_ = shell_delegate_->CreateDesksTemplatesDelegate();
1187
1188   Shell::SetRootWindowForNewWindows(GetPrimaryRootWindow());
1189
1190   resolution_notification_controller_ =
1191       std::make_unique<ResolutionNotificationController>();
1192
1193   cursor_manager_->SetDisplay(
1194       display::Screen::GetScreen()->GetPrimaryDisplay());
1195
1196   ash_accelerator_configuration_ =
1197       std::make_unique<AshAcceleratorConfiguration>();
1198   ash_accelerator_configuration_->Initialize();
1199   accelerator_controller_ = std::make_unique<AcceleratorControllerImpl>(
1200       ash_accelerator_configuration_.get());
1201
1202   clipboard_history_controller_ =
1203       std::make_unique<ClipboardHistoryControllerImpl>();
1204
1205   // `HoldingSpaceController` must be instantiated before the shelf.
1206   holding_space_controller_ = std::make_unique<HoldingSpaceController>();
1207
1208   calendar_controller_ = std::make_unique<CalendarController>();
1209
1210   shelf_config_ = std::make_unique<ShelfConfig>();
1211   shelf_controller_ = std::make_unique<ShelfController>();
1212
1213   shell_tab_handler_ = std::make_unique<ShellTabHandler>(this);
1214   AddPreTargetHandler(shell_tab_handler_.get());
1215   magnifier_key_scroll_handler_ = MagnifierKeyScroller::CreateHandler();
1216   AddPreTargetHandler(magnifier_key_scroll_handler_.get());
1217   speech_feedback_handler_ = SpokenFeedbackToggler::CreateHandler();
1218   AddPreTargetHandler(speech_feedback_handler_.get());
1219
1220   // The order in which event filters are added is significant.
1221
1222   // ui::UserActivityDetector passes events to observers, so let them get
1223   // rewritten first.
1224   user_activity_detector_ = std::make_unique<ui::UserActivityDetector>();
1225
1226   overlay_filter_ = std::make_unique<OverlayEventFilter>();
1227   AddPreTargetHandler(overlay_filter_.get());
1228
1229   control_v_histogram_recorder_ = std::make_unique<ControlVHistogramRecorder>();
1230   AddPreTargetHandler(control_v_histogram_recorder_.get());
1231
1232   accelerator_filter_ = std::make_unique<::wm::AcceleratorFilter>(
1233       std::make_unique<PreTargetAcceleratorHandler>());
1234   AddPreTargetHandler(accelerator_filter_.get());
1235
1236   event_transformation_handler_ =
1237       std::make_unique<EventTransformationHandler>();
1238   AddPreTargetHandler(event_transformation_handler_.get());
1239
1240   back_gesture_event_handler_ = std::make_unique<BackGestureEventHandler>();
1241   AddPreTargetHandler(back_gesture_event_handler_.get());
1242
1243   toplevel_window_event_handler_ =
1244       std::make_unique<ToplevelWindowEventHandler>();
1245
1246   system_gesture_filter_ = std::make_unique<SystemGestureEventFilter>();
1247   AddPreTargetHandler(system_gesture_filter_.get());
1248
1249   sticky_keys_controller_ = std::make_unique<StickyKeysController>();
1250   screen_pinning_controller_ = std::make_unique<ScreenPinningController>();
1251
1252   power_prefs_ = std::make_unique<PowerPrefs>(
1253       chromeos::PowerPolicyController::Get(),
1254       chromeos::PowerManagerClient::Get(), local_state_);
1255
1256   backlights_forced_off_setter_ = std::make_unique<BacklightsForcedOffSetter>();
1257
1258   tray_action_ =
1259       std::make_unique<TrayAction>(backlights_forced_off_setter_.get());
1260
1261   lock_state_controller_ = std::make_unique<LockStateController>(
1262       shutdown_controller_.get(), local_state_);
1263   power_button_controller_ = std::make_unique<PowerButtonController>(
1264       backlights_forced_off_setter_.get());
1265   // Pass the initial display state to PowerButtonController.
1266   power_button_controller_->OnDisplayModeChanged(
1267       display_configurator()->cached_displays());
1268
1269   drag_drop_controller_ = std::make_unique<DragDropController>();
1270
1271   mouse_cursor_filter_ = std::make_unique<MouseCursorEventFilter>();
1272   AddPreTargetHandler(mouse_cursor_filter_.get(),
1273                       ui::EventTarget::Priority::kAccessibility);
1274
1275   if (features::IsAdaptiveChargingEnabled()) {
1276     adaptive_charging_controller_ =
1277         std::make_unique<AdaptiveChargingController>();
1278   }
1279
1280   // Create Controllers that may need root window.
1281   // TODO(oshima): Move as many controllers before creating
1282   // RootWindowController as possible.
1283   visibility_controller_ = std::make_unique<AshVisibilityController>();
1284
1285   laser_pointer_controller_ = std::make_unique<LaserPointerController>();
1286   partial_magnifier_controller_ =
1287       std::make_unique<PartialMagnifierController>();
1288   highlighter_controller_ = std::make_unique<HighlighterController>();
1289
1290   fullscreen_magnifier_controller_ =
1291       std::make_unique<FullscreenMagnifierController>();
1292   mru_window_tracker_ = std::make_unique<MruWindowTracker>();
1293   assistant_controller_ = std::make_unique<AssistantControllerImpl>();
1294
1295   // |assistant_controller_| is put before |ambient_controller_| as it will be
1296   // used by the latter.
1297   if (chromeos::features::IsAmbientModeEnabled()) {
1298     mojo::PendingRemote<device::mojom::Fingerprint> fingerprint;
1299     shell_delegate_->BindFingerprint(
1300         fingerprint.InitWithNewPipeAndPassReceiver());
1301     ambient_controller_ =
1302         std::make_unique<AmbientController>(std::move(fingerprint));
1303   }
1304
1305   mojo::PendingRemote<video_capture::mojom::MultiCaptureService>
1306       multi_capture_service;
1307   shell_delegate_->BindMultiCaptureService(
1308       multi_capture_service.InitWithNewPipeAndPassReceiver());
1309   multi_capture_service_client_ = std::make_unique<MultiCaptureServiceClient>(
1310       std::move(multi_capture_service));
1311
1312   // |tablet_mode_controller_| |mru_window_tracker_|, and
1313   // |assistant_controller_| are put before |app_list_controller_| as they are
1314   // used in its constructor.
1315   app_list_controller_ = std::make_unique<AppListControllerImpl>();
1316
1317   // Create PersistentDesksBarController after `overview_controller_`,
1318   // `tablet_mode_controller_`, `desks_controller_` and
1319   // `app_list_controller_` that it observes.
1320   if (features::IsBentoBarEnabled()) {
1321     persistent_desks_bar_controller_ =
1322         std::make_unique<PersistentDesksBarController>();
1323   }
1324
1325   autoclick_controller_ = std::make_unique<AutoclickController>();
1326
1327   color_enhancement_controller_ =
1328       std::make_unique<ColorEnhancementController>();
1329
1330   security_curtain_controller_ =
1331       std::make_unique<curtain::SecurityCurtainControllerImpl>(this);
1332
1333   docked_magnifier_controller_ = std::make_unique<DockedMagnifierController>();
1334
1335   video_detector_ = std::make_unique<VideoDetector>();
1336
1337   tooltip_controller_ = std::make_unique<views::corewm::TooltipController>(
1338       std::make_unique<views::corewm::TooltipAura>(), activation_client());
1339   AddPreTargetHandler(tooltip_controller_.get());
1340
1341   modality_filter_ = std::make_unique<SystemModalContainerEventFilter>(this);
1342   AddPreTargetHandler(modality_filter_.get());
1343
1344   event_client_ = std::make_unique<EventClientImpl>();
1345
1346   resize_shadow_controller_ = std::make_unique<ResizeShadowController>();
1347   shadow_controller_ = std::make_unique<::wm::ShadowController>(
1348       focus_controller_.get(), std::make_unique<WmShadowControllerDelegate>(),
1349       env);
1350
1351   logout_confirmation_controller_ =
1352       std::make_unique<LogoutConfirmationController>();
1353
1354   // Create AshTouchTransformController before
1355   // WindowTreeHostManager::InitDisplays()
1356   // since AshTouchTransformController listens on
1357   // WindowTreeHostManager::Observer::OnDisplaysInitialized().
1358   touch_transformer_controller_ = std::make_unique<AshTouchTransformController>(
1359       display_manager_.get(),
1360       std::make_unique<display::DefaultTouchTransformSetter>());
1361
1362   // |system_tray_model_| should be available before
1363   // |system_notification_controller_| is initialized and Shelf is created by
1364   // WindowTreeHostManager::InitHosts.
1365   system_tray_model_ = std::make_unique<SystemTrayModel>();
1366
1367   // The |shelf_config_| needs |app_list_controller_| and |system_tray_model_|
1368   // to initialize itself.
1369   shelf_config_->Init();
1370
1371   // The `shelf_controller_` needs `app_list_controller_` to initialize
1372   // launcher_nudge_controller_.
1373   shelf_controller_->Init();
1374
1375   nearby_share_controller_ = std::make_unique<NearbyShareControllerImpl>();
1376   nearby_share_delegate_ = shell_delegate_->CreateNearbyShareDelegate(
1377       nearby_share_controller_.get());
1378
1379   system_notification_controller_ =
1380       std::make_unique<SystemNotificationController>();
1381
1382   // WmModeController should be created before initializing the window tree
1383   // hosts, since the latter will initialize the shelf on each display, which
1384   // hosts the WM mode tray button.
1385   if (features::IsWmModeEnabled())
1386     wm_mode_controller_ = std::make_unique<WmModeController>();
1387
1388   window_tree_host_manager_->InitHosts();
1389
1390   // Create virtual keyboard after WindowTreeHostManager::InitHosts() since
1391   // it may enable the virtual keyboard immediately, which requires a
1392   // WindowTreeHostManager to host the keyboard window.
1393   keyboard_controller_->CreateVirtualKeyboard(std::move(keyboard_ui_factory));
1394
1395   // Create window restore controller after WindowTreeHostManager::InitHosts()
1396   // since it may need to add observers to root windows.
1397   window_restore_controller_ = std::make_unique<WindowRestoreController>();
1398
1399   static_cast<CursorManager*>(cursor_manager_.get())->Init();
1400
1401   mojo::PendingRemote<device::mojom::Fingerprint> fingerprint;
1402   shell_delegate_->BindFingerprint(
1403       fingerprint.InitWithNewPipeAndPassReceiver());
1404   user_activity_notifier_ =
1405       std::make_unique<ui::UserActivityPowerManagerNotifier>(
1406           user_activity_detector_.get(), std::move(fingerprint));
1407   video_activity_notifier_ =
1408       std::make_unique<VideoActivityNotifier>(video_detector_.get());
1409   bluetooth_device_status_ui_handler_ =
1410       std::make_unique<BluetoothDeviceStatusUiHandler>();
1411   bluetooth_notification_controller_ =
1412       std::make_unique<BluetoothNotificationController>(
1413           message_center::MessageCenter::Get());
1414   screen_orientation_controller_ =
1415       std::make_unique<ScreenOrientationController>();
1416
1417   cros_display_config_ = std::make_unique<CrosDisplayConfig>();
1418
1419   screen_layout_observer_ = std::make_unique<ScreenLayoutObserver>();
1420   sms_observer_ = std::make_unique<SmsObserver>();
1421   snap_controller_ = std::make_unique<SnapControllerImpl>();
1422   key_accessibility_enabler_ = std::make_unique<KeyAccessibilityEnabler>();
1423
1424   // Create UserSettingsEventLogger after |system_tray_model_| and
1425   // |video_detector_| which it observes.
1426   ml::UserSettingsEventLogger::CreateInstance();
1427
1428   // The compositor thread and main message loop have to be running in
1429   // order to create mirror window. Run it after the main message loop
1430   // is started.
1431   display_manager_->CreateMirrorWindowAsyncIfAny();
1432
1433   // TODO(1091497): Consider combining DisplayHighlightController and
1434   // DisplayAlignmentController.
1435   display_highlight_controller_ =
1436       std::make_unique<DisplayHighlightController>();
1437
1438   if (features::IsDisplayAlignmentAssistanceEnabled()) {
1439     display_alignment_controller_ =
1440         std::make_unique<DisplayAlignmentController>();
1441   }
1442
1443   if (features::AreGlanceablesEnabled()) {
1444     glanceables_controller_ = std::make_unique<GlanceablesController>();
1445     glanceables_controller_->Init(shell_delegate_->CreateGlanceablesDelegate(
1446         glanceables_controller_.get()));
1447   }
1448
1449   if (chromeos::features::IsProjectorEnabled())
1450     projector_controller_ = std::make_unique<ProjectorControllerImpl>();
1451
1452   if (chromeos::wm::features::IsFloatWindowEnabled())
1453     float_controller_ = std::make_unique<FloatController>();
1454
1455   // Injects the factory which fulfills the implementation of the text context
1456   // menu exclusive to CrOS.
1457   views::ViewsTextServicesContextMenuChromeos::SetImplFactory(
1458       base::BindRepeating(
1459           [](ui::SimpleMenuModel* menu_model, views::Textfield* textfield)
1460               -> std::unique_ptr<views::ViewsTextServicesContextMenu> {
1461             return std::make_unique<ViewsTextServicesContextMenuImpl>(
1462                 menu_model, textfield);
1463           }));
1464
1465   for (auto& observer : shell_observers_)
1466     observer.OnShellInitialized();
1467
1468   user_metrics_recorder_->OnShellInitialized();
1469
1470   occlusion_tracker_pauser_ = std::make_unique<OcclusionTrackerPauser>();
1471
1472   // Initialize the D-Bus bus and services for ash.
1473   dbus_bus_ = dbus_bus;
1474   ash_dbus_services_ = std::make_unique<AshDBusServices>(dbus_bus.get());
1475 }
1476
1477 void Shell::InitializeDisplayManager() {
1478   display_manager_->InitConfigurator(
1479       ui::OzonePlatform::GetInstance()->CreateNativeDisplayDelegate());
1480   display_configuration_controller_ =
1481       std::make_unique<DisplayConfigurationController>(
1482           display_manager_.get(), window_tree_host_manager_.get());
1483   display_configuration_observer_ =
1484       std::make_unique<DisplayConfigurationObserver>();
1485
1486   persistent_window_controller_ =
1487       std::make_unique<PersistentWindowController>();
1488
1489   projecting_observer_ =
1490       std::make_unique<ProjectingObserver>(display_manager_->configurator());
1491
1492   if (base::FeatureList::IsEnabled(features::kSeamlessRefreshRateSwitching)) {
1493     refresh_rate_throttle_controller_ =
1494         std::make_unique<RefreshRateThrottleController>(
1495             display_manager_->configurator(), PowerStatus::Get());
1496   }
1497
1498   display_prefs_ = std::make_unique<DisplayPrefs>(local_state_);
1499
1500   bool display_initialized = display_manager_->InitFromCommandLine();
1501
1502   if (!display_initialized) {
1503     if (chromeos::IsRunningAsSystemCompositor()) {
1504       display_change_observer_ =
1505           std::make_unique<display::DisplayChangeObserver>(
1506               display_manager_.get());
1507
1508       display_error_observer_ = std::make_unique<DisplayErrorObserver>();
1509       display_shutdown_observer_ = std::make_unique<DisplayShutdownObserver>(
1510           display_manager_->configurator());
1511
1512       display_manager_->ForceInitialConfigureWithObservers(
1513           display_change_observer_.get(), display_error_observer_.get());
1514       display_initialized = true;
1515     }
1516   }
1517
1518   display_color_manager_ =
1519       std::make_unique<DisplayColorManager>(display_manager_->configurator());
1520
1521   if (!display_initialized)
1522     display_manager_->InitDefaultDisplay();
1523 }
1524
1525 void Shell::InitRootWindow(aura::Window* root_window) {
1526   DCHECK(focus_controller_);
1527   DCHECK(visibility_controller_.get());
1528
1529   aura::client::SetFocusClient(root_window, focus_controller_.get());
1530   ::wm::SetActivationClient(root_window, focus_controller_.get());
1531   root_window->AddPreTargetHandler(focus_controller_.get());
1532   aura::client::SetVisibilityClient(root_window, visibility_controller_.get());
1533   aura::client::SetDragDropClient(root_window, drag_drop_controller_.get());
1534   aura::client::SetScreenPositionClient(root_window,
1535                                         screen_position_controller_.get());
1536   aura::client::SetCursorClient(root_window, cursor_manager_.get());
1537   ::wm::SetTooltipClient(root_window, tooltip_controller_.get());
1538   aura::client::SetEventClient(root_window, event_client_.get());
1539
1540   ::wm::SetWindowMoveClient(root_window, toplevel_window_event_handler_.get());
1541   root_window->AddPreTargetHandler(toplevel_window_event_handler_.get());
1542   root_window->AddPostTargetHandler(toplevel_window_event_handler_.get());
1543 }
1544
1545 void Shell::CloseAllRootWindowChildWindows() {
1546   for (aura::Window* root : GetAllRootWindows()) {
1547     RootWindowController* controller = RootWindowController::ForWindow(root);
1548     if (controller) {
1549       controller->CloseChildWindows();
1550     } else {
1551       while (!root->children().empty()) {
1552         aura::Window* child = root->children()[0];
1553         delete child;
1554       }
1555     }
1556   }
1557 }
1558
1559 bool Shell::CanWindowReceiveEvents(aura::Window* window) {
1560   RootWindowControllerList controllers = GetAllRootWindowControllers();
1561   for (RootWindowController* controller : controllers) {
1562     if (controller->CanWindowReceiveEvents(window))
1563       return true;
1564   }
1565   return false;
1566 }
1567
1568 ////////////////////////////////////////////////////////////////////////////////
1569 // Shell, ui::EventTarget overrides:
1570
1571 bool Shell::CanAcceptEvent(const ui::Event& event) {
1572   return true;
1573 }
1574
1575 ui::EventTarget* Shell::GetParentTarget() {
1576   return aura::Env::GetInstance();
1577 }
1578
1579 std::unique_ptr<ui::EventTargetIterator> Shell::GetChildIterator() const {
1580   return nullptr;
1581 }
1582
1583 ui::EventTargeter* Shell::GetEventTargeter() {
1584   NOTREACHED();
1585   return nullptr;
1586 }
1587
1588 void Shell::OnWindowActivated(
1589     ::wm::ActivationChangeObserver::ActivationReason reason,
1590     aura::Window* gained_active,
1591     aura::Window* lost_active) {
1592   if (!gained_active)
1593     return;
1594
1595   Shell::SetRootWindowForNewWindows(gained_active->GetRootWindow());
1596 }
1597
1598 void Shell::OnFirstSessionStarted() {
1599   // Enable magnifier scroll keys as there may be no mouse cursor in kiosk mode.
1600   MagnifierKeyScroller::SetEnabled(session_controller_->IsRunningInAppMode());
1601
1602   // Enable long press action to toggle spoken feedback with hotrod remote
1603   // which can't handle shortcuts.
1604   SpokenFeedbackToggler::SetEnabled(session_controller_->IsRunningInAppMode());
1605
1606   // Reset user prefs related to contextual tooltips.
1607   if (switches::ContextualNudgesResetShownCount())
1608     contextual_tooltip::ClearPrefs();
1609
1610   // The launcher is not available before login, so start tracking usage after
1611   // the session starts.
1612   app_list_feature_usage_metrics_ =
1613       std::make_unique<AppListFeatureUsageMetrics>();
1614 }
1615
1616 void Shell::OnSessionStateChanged(session_manager::SessionState state) {
1617   const bool is_session_active = state == session_manager::SessionState::ACTIVE;
1618   // Initialize the |shelf_window_watcher_| when a session becomes active.
1619   // Shelf itself is initialized in RootWindowController.
1620   if (is_session_active && !shelf_window_watcher_) {
1621     shelf_window_watcher_ =
1622         std::make_unique<ShelfWindowWatcher>(shelf_controller()->model());
1623   }
1624
1625   // Disable drag-and-drop during OOBE and GAIA login screens by only enabling
1626   // the controller when the session is active. https://crbug.com/464118
1627   drag_drop_controller_->set_enabled(is_session_active);
1628 }
1629
1630 void Shell::OnLoginStatusChanged(LoginStatus login_status) {
1631   UpdateAfterLoginStatusChange(login_status);
1632 }
1633
1634 void Shell::OnLockStateChanged(bool locked) {
1635 #ifndef NDEBUG
1636   // Make sure that there is no system modal in Lock layer when unlocked.
1637   if (!locked) {
1638     aura::Window::Windows containers = GetContainersForAllRootWindows(
1639         kShellWindowId_LockSystemModalContainer, GetPrimaryRootWindow());
1640     for (aura::Window* container : containers)
1641       DCHECK(container->children().empty());
1642   }
1643 #endif
1644 }
1645
1646 }  // namespace ash