ash/shell.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_SHELL_H_
   6 #define ASH_SHELL_H_
   7
   8 #include <utility>
   9 #include <vector>
  10
  11 #include "ash/ash_export.h"
  12 #include "ash/metrics/user_metrics_recorder.h"
  13 #include "ash/shelf/shelf_types.h"
  14 #include "ash/system/user/login_status.h"
  15 #include "ash/wm/cursor_manager_chromeos.h"
  16 #include "ash/wm/system_modal_container_event_filter_delegate.h"
  17 #include "base/basictypes.h"
  18 #include "base/compiler_specific.h"
  19 #include "base/gtest_prod_util.h"
  20 #include "base/memory/scoped_ptr.h"
  21 #include "base/memory/weak_ptr.h"
  22 #include "base/observer_list.h"
  23 #include "ui/aura/window.h"
  24 #include "ui/base/ui_base_types.h"
  25 #include "ui/events/event_target.h"
  26 #include "ui/gfx/geometry/insets.h"
  27 #include "ui/gfx/geometry/size.h"
  28 #include "ui/gfx/screen.h"
  29 #include "ui/wm/core/cursor_manager.h"
  30 #include "ui/wm/public/activation_change_observer.h"
  31
  32 namespace app_list {
  33 class AppListView;
  34 }
  35 namespace aura {
  36 class EventFilter;
  37 class RootWindow;
  38 class Window;
  39 namespace client {
  40 class ActivationClient;
  41 class FocusClient;
  42 }
  43 }
  44
  45 namespace gfx {
  46 class ImageSkia;
  47 class Point;
  48 class Rect;
  49 }
  50
  51 namespace ui {
  52 class DisplayConfigurator;
  53 class Layer;
  54 class UserActivityDetector;
  55 class UserActivityPowerManagerNotifier;
  56 }
  57 namespace views {
  58 class NonClientFrameView;
  59 class Widget;
  60 namespace corewm {
  61 class TooltipController;
  62 }
  63 }
  64
  65 namespace wm {
  66 class AcceleratorFilter;
  67 class CompoundEventFilter;
  68 class InputMethodEventFilter;
  69 class NestedAcceleratorController;
  70 class ShadowController;
  71 class VisibilityController;
  72 class WindowModalityController;
  73 }
  74
  75 namespace ash {
  76
  77 class AcceleratorController;
  78 class AccessibilityDelegate;
  79 class AppListController;
  80 class AshNativeCursorManager;
  81 class AutoclickController;
  82 class BluetoothNotificationController;
  83 class CaptureController;
  84 class DesktopBackgroundController;
  85 class DisplayChangeObserver;
  86 class DisplayConfiguratorAnimation;
  87 class DisplayController;
  88 class DisplayErrorObserver;
  89 class DisplayManager;
  90 class DragDropController;
  91 class EventClientImpl;
  92 class EventRewriterEventFilter;
  93 class EventTransformationHandler;
  94 class FirstRunHelper;
  95 class FocusCycler;
  96 class GPUSupport;
  97 class HighContrastController;
  98 class KeyboardUMAEventFilter;
  99 class LastWindowClosedLogoutReminder;
 100 class LocaleNotificationController;
 101 class LockStateController;
 102 class LogoutConfirmationController;
 103 class MagnificationController;
 104 class MaximizeModeController;
 105 class MaximizeModeWindowManager;
 106 class MediaDelegate;
 107 class MouseCursorEventFilter;
 108 class MruWindowTracker;
 109 class NewWindowDelegate;
 110 class OverlayEventFilter;
 111 class PartialMagnificationController;
 112 class PowerButtonController;
 113 class PowerEventObserver;
 114 class ProjectingObserver;
 115 class ResizeShadowController;
 116 class ResolutionNotificationController;
 117 class RootWindowController;
 118 class ScopedTargetRootWindow;
 119 class ScreenAsh;
 120 class ScreenOrientationController;
 121 class ScreenPositionController;
 122 class SessionStateDelegate;
 123 class Shelf;
 124 class ShelfDelegate;
 125 class ShelfItemDelegateManager;
 126 class ShelfModel;
 127 class ShelfWindowWatcher;
 128 class ShellDelegate;
 129 struct ShellInitParams;
 130 class ShellObserver;
 131 class SlowAnimationEventFilter;
 132 class StatusAreaWidget;
 133 class StickyKeysController;
 134 class SystemGestureEventFilter;
 135 class SystemModalContainerEventFilter;
 136 class SystemTray;
 137 class SystemTrayDelegate;
 138 class SystemTrayNotifier;
 139 class ToplevelWindowEventHandler;
 140 class TouchTransformerController;
 141 class TouchObserverHUD;
 142 class UserWallpaperDelegate;
 143 class VirtualKeyboardController;
 144 class VideoActivityNotifier;
 145 class VideoDetector;
 146 class WebNotificationTray;
 147 class WindowCycleController;
 148 class WindowPositioner;
 149 class WindowSelectorController;
 150
 151 namespace shell {
 152 class WindowWatcher;
 153 }
 154
 155 namespace test {
 156 class ShellTestApi;
 157 }
 158
 159 // Shell is a singleton object that presents the Shell API and implements the
 160 // RootWindow's delegate interface.
 161 //
 162 // Upon creation, the Shell sets itself as the RootWindow's delegate, which
 163 // takes ownership of the Shell.
 164 class ASH_EXPORT Shell : public SystemModalContainerEventFilterDelegate,
 165                          public ui::EventTarget,
 166                          public aura::client::ActivationChangeObserver {
 167  public:
 168   typedef std::vector<RootWindowController*> RootWindowControllerList;
 169
 170   enum Direction {
 171     FORWARD,
 172     BACKWARD
 173   };
 174
 175   // A shell must be explicitly created so that it can call |Init()| with the
 176   // delegate set. |delegate| can be NULL (if not required for initialization).
 177   // Takes ownership of |delegate|.
 178   static Shell* CreateInstance(const ShellInitParams& init_params);
 179
 180   // Should never be called before |CreateInstance()|.
 181   static Shell* GetInstance();
 182
 183   // Returns true if the ash shell has been instantiated.
 184   static bool HasInstance();
 185
 186   static void DeleteInstance();
 187
 188   // Returns the root window controller for the primary root window.
 189   // TODO(oshima): move this to |RootWindowController|
 190   static RootWindowController* GetPrimaryRootWindowController();
 191
 192   // Returns all root window controllers.
 193   // TODO(oshima): move this to |RootWindowController|
 194   static RootWindowControllerList GetAllRootWindowControllers();
 195
 196   // Returns the primary root Window. The primary root Window is the one that
 197   // has a launcher.
 198   static aura::Window* GetPrimaryRootWindow();
 199
 200   // Returns a root Window when used as a target when creating a new window.
 201   // The root window of the active window is used in most cases, but can
 202   // be overridden by using ScopedTargetRootWindow().
 203   // If you want to get the root Window of the active window, just use
 204   // |wm::GetActiveWindow()->GetRootWindow()|.
 205   static aura::Window* GetTargetRootWindow();
 206
 207   // Returns the global Screen object that's always active in ash.
 208   static gfx::Screen* GetScreen();
 209
 210   // Returns all root windows.
 211   static aura::Window::Windows GetAllRootWindows();
 212
 213   static aura::Window* GetContainer(aura::Window* root_window,
 214                                     int container_id);
 215   static const aura::Window* GetContainer(const aura::Window* root_window,
 216                                           int container_id);
 217
 218   // Returns the list of containers that match |container_id| in
 219   // all root windows. If |priority_root| is given, the container
 220   // in the |priority_root| will be inserted at the top of the list.
 221   static std::vector<aura::Window*> GetContainersFromAllRootWindows(
 222       int container_id,
 223       aura::Window* priority_root);
 224
 225   void set_target_root_window(aura::Window* target_root_window) {
 226     target_root_window_ = target_root_window;
 227   }
 228
 229   // Shows the context menu for the background and launcher at
 230   // |location_in_screen| (in screen coordinates).
 231   void ShowContextMenu(const gfx::Point& location_in_screen,
 232                        ui::MenuSourceType source_type);
 233
 234   // Shows the app list. |window| specifies in which display the app
 235   // list should be shown. If this is NULL, the active root window
 236   // will be used.
 237   void ShowAppList(aura::Window* anchor);
 238
 239   // Dismisses the app list.
 240   void DismissAppList();
 241
 242   // Shows the app list if it's not visible. Dismisses it otherwise.
 243   void ToggleAppList(aura::Window* anchor);
 244
 245   // Returns app list target visibility.
 246   bool GetAppListTargetVisibility() const;
 247
 248   // Returns app list window or NULL if it is not visible.
 249   aura::Window* GetAppListWindow();
 250
 251   // Returns app list view or NULL if it is not visible.
 252   app_list::AppListView* GetAppListView();
 253
 254   // Returns true if a system-modal dialog window is currently open.
 255   bool IsSystemModalWindowOpen() const;
 256
 257   // For testing only: set simulation that a modal window is open
 258   void SimulateModalWindowOpenForTesting(bool modal_window_open) {
 259     simulate_modal_window_open_for_testing_ = modal_window_open;
 260   }
 261
 262   // Creates a default views::NonClientFrameView for use by windows in the
 263   // Ash environment.
 264   views::NonClientFrameView* CreateDefaultNonClientFrameView(
 265       views::Widget* widget);
 266
 267   // Rotates focus through containers that can receive focus.
 268   void RotateFocus(Direction direction);
 269
 270   // Sets the work area insets of the display that contains |window|,
 271   // this notifies observers too.
 272   // TODO(sky): this no longer really replicates what happens and is unreliable.
 273   // Remove this.
 274   void SetDisplayWorkAreaInsets(aura::Window* window,
 275                                 const gfx::Insets& insets);
 276
 277   // Called when the user logs in.
 278   void OnLoginStateChanged(user::LoginStatus status);
 279
 280   // Called after the logged-in user's profile is ready.
 281   void OnLoginUserProfilePrepared();
 282
 283   // Called when the login status changes.
 284   // TODO(oshima): Investigate if we can merge this and |OnLoginStateChanged|.
 285   void UpdateAfterLoginStatusChange(user::LoginStatus status);
 286
 287   // Called when the application is exiting.
 288   void OnAppTerminating();
 289
 290   // Called when the screen is locked (after the lock window is visible) or
 291   // unlocked.
 292   void OnLockStateChanged(bool locked);
 293
 294   // Called when a casting session is started or stopped.
 295   void OnCastingSessionStartedOrStopped(bool started);
 296
 297   // Called when the overview mode is about to be started (before the windows
 298   // get re-arranged).
 299   void OnOverviewModeStarting();
 300
 301   // Called after overview mode has ended.
 302   void OnOverviewModeEnded();
 303
 304   // Called after maximize mode has started, windows might still animate though.
 305   void OnMaximizeModeStarted();
 306
 307   // Called after maximize mode has ended, windows might still be returning to
 308   // their original position.
 309   void OnMaximizeModeEnded();
 310
 311   // Called when a root window is created.
 312   void OnRootWindowAdded(aura::Window* root_window);
 313
 314   // Initializes |shelf_|.  Does nothing if it's already initialized.
 315   void CreateShelf();
 316
 317   // Called when the shelf is created for |root_window|.
 318   void OnShelfCreatedForRootWindow(aura::Window* root_window);
 319
 320   // Creates a virtual keyboard. Deletes the old virtual keyboard if it already
 321   // exists.
 322   void CreateKeyboard();
 323
 324   // Deactivates the virtual keyboard.
 325   void DeactivateKeyboard();
 326
 327   // Show shelf view if it was created hidden (before session has started).
 328   void ShowShelf();
 329
 330   // Adds/removes observer.
 331   void AddShellObserver(ShellObserver* observer);
 332   void RemoveShellObserver(ShellObserver* observer);
 333
 334 #if defined(OS_CHROMEOS)
 335   // Test if MaximizeModeWindowManager is not enabled, and if
 336   // MaximizeModeController is not currently setting a display rotation. Or if
 337   // the |resolution_notification_controller_| is not showing its confirmation
 338   // dialog. If true then changes to display settings can be saved.
 339   bool ShouldSaveDisplaySettings();
 340 #endif
 341
 342   AcceleratorController* accelerator_controller() {
 343     return accelerator_controller_.get();
 344   }
 345
 346   DisplayManager* display_manager() { return display_manager_.get(); }
 347   ::wm::InputMethodEventFilter* input_method_filter() {
 348     return input_method_filter_.get();
 349   }
 350   ::wm::CompoundEventFilter* env_filter() {
 351     return env_filter_.get();
 352   }
 353   views::corewm::TooltipController* tooltip_controller() {
 354     return tooltip_controller_.get();
 355   }
 356   OverlayEventFilter* overlay_filter() { return overlay_filter_.get(); }
 357   DesktopBackgroundController* desktop_background_controller() {
 358     return desktop_background_controller_.get();
 359   }
 360   PowerButtonController* power_button_controller() {
 361     return power_button_controller_.get();
 362   }
 363   LockStateController* lock_state_controller() {
 364     return lock_state_controller_.get();
 365   }
 366   MruWindowTracker* mru_window_tracker() {
 367     return mru_window_tracker_.get();
 368   }
 369   VideoDetector* video_detector() {
 370     return video_detector_.get();
 371   }
 372   WindowCycleController* window_cycle_controller() {
 373     return window_cycle_controller_.get();
 374   }
 375   WindowSelectorController* window_selector_controller() {
 376     return window_selector_controller_.get();
 377   }
 378   FocusCycler* focus_cycler() { return focus_cycler_.get(); }
 379   DisplayController* display_controller() {
 380     return display_controller_.get();
 381   }
 382 #if defined(OS_CHROMEOS)
 383   PowerEventObserver* power_event_observer() {
 384     return power_event_observer_.get();
 385   }
 386   TouchTransformerController* touch_transformer_controller() {
 387     return touch_transformer_controller_.get();
 388   }
 389 #endif  // defined(OS_CHROMEOS)
 390   MouseCursorEventFilter* mouse_cursor_filter() {
 391     return mouse_cursor_filter_.get();
 392   }
 393   EventTransformationHandler* event_transformation_handler() {
 394     return event_transformation_handler_.get();
 395   }
 396   ::wm::CursorManager* cursor_manager() { return &cursor_manager_; }
 397
 398   ShellDelegate* delegate() { return delegate_.get(); }
 399
 400   UserWallpaperDelegate* user_wallpaper_delegate() {
 401     return user_wallpaper_delegate_.get();
 402   }
 403
 404   SessionStateDelegate* session_state_delegate() {
 405     return session_state_delegate_.get();
 406   }
 407
 408   AccessibilityDelegate* accessibility_delegate() {
 409     return accessibility_delegate_.get();
 410   }
 411
 412   NewWindowDelegate* new_window_delegate() {
 413     return new_window_delegate_.get();
 414   }
 415
 416   MediaDelegate* media_delegate() {
 417     return media_delegate_.get();
 418   }
 419
 420   HighContrastController* high_contrast_controller() {
 421     return high_contrast_controller_.get();
 422   }
 423
 424   MagnificationController* magnification_controller() {
 425     return magnification_controller_.get();
 426   }
 427
 428   PartialMagnificationController* partial_magnification_controller() {
 429     return partial_magnification_controller_.get();
 430   }
 431
 432   AutoclickController* autoclick_controller() {
 433     return autoclick_controller_.get();
 434   }
 435
 436   aura::client::ActivationClient* activation_client() {
 437     return activation_client_;
 438   }
 439
 440   ShelfItemDelegateManager* shelf_item_delegate_manager() {
 441     return shelf_item_delegate_manager_.get();
 442   }
 443
 444   // Force the shelf to query for it's current visibility state.
 445   void UpdateShelfVisibility();
 446
 447   // TODO(oshima): Define an interface to access shelf/launcher
 448   // state, or just use Launcher.
 449
 450   // Sets/gets the shelf auto-hide behavior on |root_window|.
 451   void SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
 452                                 aura::Window* root_window);
 453   ShelfAutoHideBehavior GetShelfAutoHideBehavior(
 454       aura::Window* root_window) const;
 455
 456   // Sets/gets shelf's alignment on |root_window|.
 457   void SetShelfAlignment(ShelfAlignment alignment,
 458                          aura::Window* root_window);
 459   ShelfAlignment GetShelfAlignment(const aura::Window* root_window);
 460
 461   // Dims or undims the screen.
 462   void SetDimming(bool should_dim);
 463
 464   // Notifies |observers_| when entering or exiting fullscreen mode in
 465   // |root_window|.
 466   void NotifyFullscreenStateChange(bool is_fullscreen,
 467                                    aura::Window* root_window);
 468
 469   // Creates a modal background (a partially-opaque fullscreen window)
 470   // on all displays for |window|.
 471   void CreateModalBackground(aura::Window* window);
 472
 473   // Called when a modal window is removed. It will activate
 474   // another modal window if any, or remove modal screens
 475   // on all displays.
 476   void OnModalWindowRemoved(aura::Window* removed);
 477
 478   // Returns WebNotificationTray on the primary root window.
 479   WebNotificationTray* GetWebNotificationTray();
 480
 481   // Does the primary display have status area?
 482   bool HasPrimaryStatusArea();
 483
 484   // Returns the system tray on primary display.
 485   SystemTray* GetPrimarySystemTray();
 486
 487   SystemTrayDelegate* system_tray_delegate() {
 488     return system_tray_delegate_.get();
 489   }
 490
 491   SystemTrayNotifier* system_tray_notifier() {
 492     return system_tray_notifier_.get();
 493   }
 494
 495   static void set_initially_hide_cursor(bool hide) {
 496     initially_hide_cursor_ = hide;
 497   }
 498
 499   ResizeShadowController* resize_shadow_controller() {
 500     return resize_shadow_controller_.get();
 501   }
 502
 503   // Made available for tests.
 504   ::wm::ShadowController* shadow_controller() {
 505     return shadow_controller_.get();
 506   }
 507
 508   // Starts the animation that occurs on first login.
 509   void DoInitialWorkspaceAnimation();
 510
 511   MaximizeModeController* maximize_mode_controller() {
 512     return maximize_mode_controller_.get();
 513   }
 514
 515 #if defined(OS_CHROMEOS)
 516   // TODO(oshima): Move these objects to DisplayController.
 517   ui::DisplayConfigurator* display_configurator() {
 518     return display_configurator_.get();
 519   }
 520   DisplayConfiguratorAnimation* display_configurator_animation() {
 521     return display_configurator_animation_.get();
 522   }
 523   DisplayErrorObserver* display_error_observer() {
 524     return display_error_observer_.get();
 525   }
 526
 527   ResolutionNotificationController* resolution_notification_controller() {
 528     return resolution_notification_controller_.get();
 529   }
 530
 531   LogoutConfirmationController* logout_confirmation_controller() {
 532     return logout_confirmation_controller_.get();
 533   }
 534
 535   ScreenOrientationController* screen_orientation_controller() {
 536     return screen_orientation_controller_.get();
 537   }
 538
 539   VirtualKeyboardController* virtual_keyboard_controller() {
 540     return virtual_keyboard_controller_.get();
 541   }
 542 #endif  // defined(OS_CHROMEOS)
 543
 544   ShelfModel* shelf_model() {
 545     return shelf_model_.get();
 546   }
 547
 548   WindowPositioner* window_positioner() {
 549     return window_positioner_.get();
 550   }
 551
 552   // Returns the launcher delegate, creating if necesary.
 553   ShelfDelegate* GetShelfDelegate();
 554
 555   UserMetricsRecorder* metrics() {
 556     return user_metrics_recorder_.get();
 557   }
 558
 559   void SetTouchHudProjectionEnabled(bool enabled);
 560
 561   bool is_touch_hud_projection_enabled() const {
 562     return is_touch_hud_projection_enabled_;
 563   }
 564
 565 #if defined(OS_CHROMEOS)
 566   // Creates instance of FirstRunHelper. Caller is responsible for deleting
 567   // returned object.
 568   ash::FirstRunHelper* CreateFirstRunHelper();
 569
 570   // Toggles cursor compositing on/off. Native cursor is disabled when cursor
 571   // compositing is enabled, and vice versa.
 572   void SetCursorCompositingEnabled(bool enabled);
 573
 574   StickyKeysController* sticky_keys_controller() {
 575     return sticky_keys_controller_.get();
 576   }
 577 #endif  // defined(OS_CHROMEOS)
 578
 579   GPUSupport* gpu_support() { return gpu_support_.get(); }
 580
 581  private:
 582   FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, TestCursor);
 583   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, MouseEventCursors);
 584   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, TransformActivate);
 585   friend class RootWindowController;
 586   friend class ScopedTargetRootWindow;
 587   friend class test::ShellTestApi;
 588   friend class shell::WindowWatcher;
 589
 590   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 591
 592   // Takes ownership of |delegate|.
 593   explicit Shell(ShellDelegate* delegate);
 594   ~Shell() override;
 595
 596   void Init(const ShellInitParams& init_params);
 597
 598   // Initializes virtual keyboard controller.
 599   void InitKeyboard();
 600
 601   // Initializes the root window so that it can host browser windows.
 602   void InitRootWindow(aura::Window* root_window);
 603
 604   // ash::SystemModalContainerEventFilterDelegate overrides:
 605   bool CanWindowReceiveEvents(aura::Window* window) override;
 606
 607   // Overridden from ui::EventTarget:
 608   bool CanAcceptEvent(const ui::Event& event) override;
 609   EventTarget* GetParentTarget() override;
 610   scoped_ptr<ui::EventTargetIterator> GetChildIterator() const override;
 611   ui::EventTargeter* GetEventTargeter() override;
 612   void OnEvent(ui::Event* event) override;
 613
 614   // Overridden from aura::client::ActivationChangeObserver:
 615   void OnWindowActivated(aura::Window* gained_active,
 616                          aura::Window* lost_active) override;
 617
 618   static Shell* instance_;
 619
 620   // If set before the Shell is initialized, the mouse cursor will be hidden
 621   // when the screen is initially created.
 622   static bool initially_hide_cursor_;
 623
 624   // When no explicit target display/RootWindow is given, new windows are
 625   // created on |scoped_target_root_window_| , unless NULL in
 626   // which case they are created on |target_root_window_|.
 627   // |target_root_window_| never becomes NULL during the session.
 628   aura::Window* target_root_window_;
 629   aura::Window* scoped_target_root_window_;
 630
 631   // The CompoundEventFilter owned by aura::Env object.
 632   scoped_ptr< ::wm::CompoundEventFilter> env_filter_;
 633
 634   std::vector<WindowAndBoundsPair> to_restore_;
 635
 636   scoped_ptr<UserMetricsRecorder> user_metrics_recorder_;
 637   scoped_ptr< ::wm::NestedAcceleratorController> nested_accelerator_controller_;
 638   scoped_ptr<AcceleratorController> accelerator_controller_;
 639   scoped_ptr<ShellDelegate> delegate_;
 640   scoped_ptr<SystemTrayDelegate> system_tray_delegate_;
 641   scoped_ptr<SystemTrayNotifier> system_tray_notifier_;
 642   scoped_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
 643   scoped_ptr<SessionStateDelegate> session_state_delegate_;
 644   scoped_ptr<AccessibilityDelegate> accessibility_delegate_;
 645   scoped_ptr<NewWindowDelegate> new_window_delegate_;
 646   scoped_ptr<MediaDelegate> media_delegate_;
 647   scoped_ptr<ShelfDelegate> shelf_delegate_;
 648   scoped_ptr<ShelfItemDelegateManager> shelf_item_delegate_manager_;
 649   scoped_ptr<ShelfWindowWatcher> shelf_window_watcher_;
 650
 651   scoped_ptr<ShelfModel> shelf_model_;
 652   scoped_ptr<WindowPositioner> window_positioner_;
 653
 654   scoped_ptr<AppListController> app_list_controller_;
 655
 656   scoped_ptr<DragDropController> drag_drop_controller_;
 657   scoped_ptr<ResizeShadowController> resize_shadow_controller_;
 658   scoped_ptr< ::wm::ShadowController> shadow_controller_;
 659   scoped_ptr< ::wm::VisibilityController> visibility_controller_;
 660   scoped_ptr< ::wm::WindowModalityController> window_modality_controller_;
 661   scoped_ptr<views::corewm::TooltipController> tooltip_controller_;
 662   scoped_ptr<DesktopBackgroundController> desktop_background_controller_;
 663   scoped_ptr<PowerButtonController> power_button_controller_;
 664   scoped_ptr<LockStateController> lock_state_controller_;
 665   scoped_ptr<MruWindowTracker> mru_window_tracker_;
 666   scoped_ptr<ui::UserActivityDetector> user_activity_detector_;
 667   scoped_ptr<VideoDetector> video_detector_;
 668   scoped_ptr<WindowCycleController> window_cycle_controller_;
 669   scoped_ptr<WindowSelectorController> window_selector_controller_;
 670   scoped_ptr<FocusCycler> focus_cycler_;
 671   scoped_ptr<DisplayController> display_controller_;
 672   scoped_ptr<HighContrastController> high_contrast_controller_;
 673   scoped_ptr<MagnificationController> magnification_controller_;
 674   scoped_ptr<PartialMagnificationController> partial_magnification_controller_;
 675   scoped_ptr<AutoclickController> autoclick_controller_;
 676   scoped_ptr<aura::client::FocusClient> focus_client_;
 677   aura::client::ActivationClient* activation_client_;
 678
 679   scoped_ptr<MouseCursorEventFilter> mouse_cursor_filter_;
 680   scoped_ptr<ScreenPositionController> screen_position_controller_;
 681   scoped_ptr<SystemModalContainerEventFilter> modality_filter_;
 682   scoped_ptr<EventClientImpl> event_client_;
 683   scoped_ptr<EventTransformationHandler> event_transformation_handler_;
 684
 685   // An event filter that pre-handles key events while the partial
 686   // screenshot UI or the keyboard overlay is active.
 687   scoped_ptr<OverlayEventFilter> overlay_filter_;
 688
 689   // An event filter for logging keyboard-related metrics.
 690   scoped_ptr<KeyboardUMAEventFilter> keyboard_metrics_filter_;
 691
 692   // An event filter which handles moving and resizing windows.
 693   scoped_ptr<ToplevelWindowEventHandler> toplevel_window_event_handler_;
 694
 695   // An event filter which handles system level gestures
 696   scoped_ptr<SystemGestureEventFilter> system_gesture_filter_;
 697
 698   // An event filter that pre-handles global accelerators.
 699   scoped_ptr< ::wm::AcceleratorFilter> accelerator_filter_;
 700
 701   // An event filter that pre-handles all key events to send them to an IME.
 702   scoped_ptr< ::wm::InputMethodEventFilter> input_method_filter_;
 703
 704   scoped_ptr<DisplayManager> display_manager_;
 705
 706   scoped_ptr<LocaleNotificationController> locale_notification_controller_;
 707
 708 #if defined(OS_CHROMEOS)
 709   scoped_ptr<PowerEventObserver> power_event_observer_;
 710   scoped_ptr<ui::UserActivityPowerManagerNotifier> user_activity_notifier_;
 711   scoped_ptr<VideoActivityNotifier> video_activity_notifier_;
 712   scoped_ptr<StickyKeysController> sticky_keys_controller_;
 713   scoped_ptr<ResolutionNotificationController>
 714       resolution_notification_controller_;
 715   scoped_ptr<BluetoothNotificationController>
 716       bluetooth_notification_controller_;
 717   scoped_ptr<LogoutConfirmationController> logout_confirmation_controller_;
 718   scoped_ptr<LastWindowClosedLogoutReminder>
 719       last_window_closed_logout_reminder_;
 720   scoped_ptr<VirtualKeyboardController> virtual_keyboard_controller_;
 721   // Controls video output device state.
 722   scoped_ptr<ui::DisplayConfigurator> display_configurator_;
 723   scoped_ptr<DisplayConfiguratorAnimation> display_configurator_animation_;
 724   scoped_ptr<DisplayErrorObserver> display_error_observer_;
 725   scoped_ptr<ProjectingObserver> projecting_observer_;
 726
 727   // Listens for output changes and updates the display manager.
 728   scoped_ptr<DisplayChangeObserver> display_change_observer_;
 729
 730   // Implements content::ScreenOrientationController for ChromeOS
 731   scoped_ptr<ScreenOrientationController> screen_orientation_controller_;
 732
 733   scoped_ptr<TouchTransformerController> touch_transformer_controller_;
 734
 735   scoped_ptr<ui::EventHandler> magnifier_key_scroll_handler_;
 736   scoped_ptr<ui::EventHandler> speech_feedback_handler_;
 737 #endif  // defined(OS_CHROMEOS)
 738
 739   scoped_ptr<MaximizeModeController> maximize_mode_controller_;
 740
 741   // |native_cursor_manager_| is owned by |cursor_manager_|, but we keep a
 742   // pointer to vend to test code.
 743   AshNativeCursorManager* native_cursor_manager_;
 744
 745 // Cursor may be hidden on certain key events in ChromeOS, whereas we never hide
 746 // the cursor on Windows.
 747 #if defined(OS_CHROMEOS)
 748   CursorManager cursor_manager_;
 749 #else  // !defined(OS_CHROMEOS)
 750   ::wm::CursorManager cursor_manager_;
 751 #endif  // defined(OS_CHROMEOS)
 752
 753   ObserverList<ShellObserver> observers_;
 754
 755   // For testing only: simulate that a modal window is open
 756   bool simulate_modal_window_open_for_testing_;
 757
 758   bool is_touch_hud_projection_enabled_;
 759
 760   // Injected content::GPUDataManager support.
 761   scoped_ptr<GPUSupport> gpu_support_;
 762
 763   DISALLOW_COPY_AND_ASSIGN(Shell);
 764 };
 765
 766 }  // namespace ash
 767
 768 #endif  // ASH_SHELL_H_