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/system_modal_container_event_filter_delegate.h"
  16 #include "base/basictypes.h"
  17 #include "base/compiler_specific.h"
  18 #include "base/gtest_prod_util.h"
  19 #include "base/memory/scoped_ptr.h"
  20 #include "base/memory/weak_ptr.h"
  21 #include "base/observer_list.h"
  22 #include "ui/aura/client/activation_change_observer.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/insets.h"
  27 #include "ui/gfx/screen.h"
  28 #include "ui/gfx/size.h"
  29 #include "ui/wm/core/cursor_manager.h"
  30
  31 class CommandLine;
  32
  33 namespace app_list {
  34 class AppListView;
  35 }
  36 namespace aura {
  37 class EventFilter;
  38 class RootWindow;
  39 class Window;
  40 namespace client {
  41 class ActivationClient;
  42 class FocusClient;
  43 }
  44 }
  45 namespace chromeos {
  46 class OutputConfigurator;
  47 }
  48
  49 namespace gfx {
  50 class ImageSkia;
  51 class Point;
  52 class Rect;
  53 }
  54
  55 namespace keyboard {
  56 class KeyboardController;
  57 }
  58
  59 namespace ui {
  60 class Layer;
  61 }
  62 namespace views {
  63 class NonClientFrameView;
  64 class Widget;
  65 namespace corewm {
  66 class CompoundEventFilter;
  67 class InputMethodEventFilter;
  68 class ShadowController;
  69 class TooltipController;
  70 class VisibilityController;
  71 class WindowModalityController;
  72 }
  73 }
  74
  75 namespace ash {
  76
  77 class AcceleratorController;
  78 class AccessibilityDelegate;
  79 class AshNativeCursorManager;
  80 class AutoclickController;
  81 class DesktopBackgroundController;
  82 class DisplayController;
  83 class FirstRunHelper;
  84 class GPUSupport;
  85 class HighContrastController;
  86 class LockStateController;
  87 class MagnificationController;
  88 class MediaDelegate;
  89 class MruWindowTracker;
  90 class NestedDispatcherController;
  91 class NewWindowDelegate;
  92 class PartialMagnificationController;
  93 class PowerButtonController;
  94 class WindowTreeHostFactory;
  95 class ScreenAsh;
  96 class SessionStateDelegate;
  97 class Shelf;
  98 class ShelfDelegate;
  99 class ShelfItemDelegateManager;
 100 class ShelfModel;
 101 class ShellDelegate;
 102 class ShellObserver;
 103 class StickyKeysController;
 104 class SystemTray;
 105 class SystemTrayDelegate;
 106 class SystemTrayNotifier;
 107 class ToplevelWindowEventHandler;
 108 class UserActivityDetector;
 109 class UserWallpaperDelegate;
 110 class VideoDetector;
 111 class WebNotificationTray;
 112 class WindowCycleController;
 113 class WindowPositioner;
 114 class WindowSelectorController;
 115
 116 namespace internal {
 117 class AcceleratorFilter;
 118 class AppListController;
 119 class BluetoothNotificationController;
 120 class CaptureController;
 121 class DisplayChangeObserver;
 122 class DisplayErrorObserver;
 123 class DisplayManager;
 124 class DragDropController;
 125 class EventClientImpl;
 126 class EventRewriterEventFilter;
 127 class EventTransformationHandler;
 128 class FocusCycler;
 129 class KeyboardUMAEventFilter;
 130 class LocaleNotificationController;
 131 class LogoutConfirmationController;
 132 class MaximizeModeWindowManager;
 133 class MouseCursorEventFilter;
 134 class OutputConfiguratorAnimation;
 135 class OverlayEventFilter;
 136 class PowerEventObserver;
 137 class ProjectingObserver;
 138 class ResizeShadowController;
 139 class ResolutionNotificationController;
 140 class RootWindowController;
 141 class ScopedTargetRootWindow;
 142 class ScreenPositionController;
 143 class ShelfWindowWatcher;
 144 class SlowAnimationEventFilter;
 145 class StatusAreaWidget;
 146 class SystemGestureEventFilter;
 147 class SystemModalContainerEventFilter;
 148 class TouchObserverHUD;
 149 class UserActivityNotifier;
 150 class VideoActivityNotifier;
 151 }
 152
 153 namespace shell {
 154 class WindowWatcher;
 155 }
 156
 157 namespace test {
 158 class ShellTestApi;
 159 }
 160
 161 // Shell is a singleton object that presents the Shell API and implements the
 162 // RootWindow's delegate interface.
 163 //
 164 // Upon creation, the Shell sets itself as the RootWindow's delegate, which
 165 // takes ownership of the Shell.
 166 class ASH_EXPORT Shell
 167     : public internal::SystemModalContainerEventFilterDelegate,
 168       public ui::EventTarget,
 169       public aura::client::ActivationChangeObserver {
 170  public:
 171   typedef std::vector<internal::RootWindowController*> RootWindowControllerList;
 172
 173   enum Direction {
 174     FORWARD,
 175     BACKWARD
 176   };
 177
 178   // A shell must be explicitly created so that it can call |Init()| with the
 179   // delegate set. |delegate| can be NULL (if not required for initialization).
 180   // Takes ownership of |delegate|.
 181   static Shell* CreateInstance(ShellDelegate* delegate);
 182
 183   // Should never be called before |CreateInstance()|.
 184   static Shell* GetInstance();
 185
 186   // Returns true if the ash shell has been instantiated.
 187   static bool HasInstance();
 188
 189   static void DeleteInstance();
 190
 191   // Returns the root window controller for the primary root window.
 192   // TODO(oshima): move this to |RootWindowController|
 193   static internal::RootWindowController* GetPrimaryRootWindowController();
 194
 195   // Returns all root window controllers.
 196   // TODO(oshima): move this to |RootWindowController|
 197   static RootWindowControllerList GetAllRootWindowControllers();
 198
 199   // Returns the primary root Window. The primary root Window is the one that
 200   // has a launcher.
 201   static aura::Window* GetPrimaryRootWindow();
 202
 203   // Returns a root Window when used as a target when creating a new window.
 204   // The root window of the active window is used in most cases, but can
 205   // be overridden by using ScopedTargetRootWindow().
 206   // If you want to get the root Window of the active window, just use
 207   // |wm::GetActiveWindow()->GetRootWindow()|.
 208   static aura::Window* GetTargetRootWindow();
 209
 210   // Returns the global Screen object that's always active in ash.
 211   static gfx::Screen* GetScreen();
 212
 213   // Returns all root windows.
 214   static aura::Window::Windows GetAllRootWindows();
 215
 216   static aura::Window* GetContainer(aura::Window* root_window,
 217                                     int container_id);
 218   static const aura::Window* GetContainer(const aura::Window* root_window,
 219                                           int container_id);
 220
 221   // Returns the list of containers that match |container_id| in
 222   // all root windows. If |priority_root| is given, the container
 223   // in the |priority_root| will be inserted at the top of the list.
 224   static std::vector<aura::Window*> GetContainersFromAllRootWindows(
 225       int container_id,
 226       aura::Window* priority_root);
 227
 228   void set_target_root_window(aura::Window* target_root_window) {
 229     target_root_window_ = target_root_window;
 230   }
 231
 232   // Shows the context menu for the background and launcher at
 233   // |location_in_screen| (in screen coordinates).
 234   void ShowContextMenu(const gfx::Point& location_in_screen,
 235                        ui::MenuSourceType source_type);
 236
 237   // Toggles the app list. |window| specifies in which display the app
 238   // list should be shown. If this is NULL, the active root window
 239   // will be used.
 240   void ToggleAppList(aura::Window* anchor);
 241
 242   // Returns app list target visibility.
 243   bool GetAppListTargetVisibility() const;
 244
 245   // Returns app list window or NULL if it is not visible.
 246   aura::Window* GetAppListWindow();
 247
 248   // Returns app list view or NULL if it is not visible.
 249   app_list::AppListView* GetAppListView();
 250
 251   // Returns true if a system-modal dialog window is currently open.
 252   bool IsSystemModalWindowOpen() const;
 253
 254   // For testing only: set simulation that a modal window is open
 255   void SimulateModalWindowOpenForTesting(bool modal_window_open) {
 256     simulate_modal_window_open_for_testing_ = modal_window_open;
 257   }
 258
 259   // Creates a default views::NonClientFrameView for use by windows in the
 260   // Ash environment.
 261   views::NonClientFrameView* CreateDefaultNonClientFrameView(
 262       views::Widget* widget);
 263
 264   // Rotates focus through containers that can receive focus.
 265   void RotateFocus(Direction direction);
 266
 267   // Sets the work area insets of the display that contains |window|,
 268   // this notifies observers too.
 269   // TODO(sky): this no longer really replicates what happens and is unreliable.
 270   // Remove this.
 271   void SetDisplayWorkAreaInsets(aura::Window* window,
 272                                 const gfx::Insets& insets);
 273
 274   // Called when the user logs in.
 275   void OnLoginStateChanged(user::LoginStatus status);
 276
 277   // Called after the logged-in user's profile is ready.
 278   void OnLoginUserProfilePrepared();
 279
 280   // Called when the login status changes.
 281   // TODO(oshima): Investigate if we can merge this and |OnLoginStateChanged|.
 282   void UpdateAfterLoginStatusChange(user::LoginStatus status);
 283
 284   // Called when the application is exiting.
 285   void OnAppTerminating();
 286
 287   // Called when the screen is locked (after the lock window is visible) or
 288   // unlocked.
 289   void OnLockStateChanged(bool locked);
 290
 291   // Called when a casting session is started or stopped.
 292   void OnCastingSessionStartedOrStopped(bool started);
 293
 294   // Called when the overview mode is about to be started (before the windows
 295   // get re-arranged).
 296   void OnOverviewModeStarting();
 297
 298   // Called before the overview mode is ending (before the windows get arranged
 299   // to their final position).
 300   void OnOverviewModeEnding();
 301
 302   // Initializes |shelf_|.  Does nothing if it's already initialized.
 303   void CreateShelf();
 304
 305   // Creates a virtual keyboard. Deletes the old virtual keyboard if it already
 306   // exists.
 307   void CreateKeyboard();
 308
 309   // Deactivates the virtual keyboard.
 310   void DeactivateKeyboard();
 311
 312   // Show shelf view if it was created hidden (before session has started).
 313   void ShowShelf();
 314
 315   // Adds/removes observer.
 316   void AddShellObserver(ShellObserver* observer);
 317   void RemoveShellObserver(ShellObserver* observer);
 318
 319   // Turn the always maximize mode window manager on or off.
 320   void EnableMaximizeModeWindowManager(bool enable);
 321
 322   // Test if the MaximizeModeWindowManager is enabled or not.
 323   bool IsMaximizeModeWindowManagerEnabled();
 324
 325   keyboard::KeyboardController* keyboard_controller() {
 326     return keyboard_controller_.get();
 327   }
 328
 329   AcceleratorController* accelerator_controller() {
 330     return accelerator_controller_.get();
 331   }
 332
 333   internal::DisplayManager* display_manager() {
 334     return display_manager_.get();
 335   }
 336   views::corewm::InputMethodEventFilter* input_method_filter() {
 337     return input_method_filter_.get();
 338   }
 339   views::corewm::CompoundEventFilter* env_filter() {
 340     return env_filter_.get();
 341   }
 342   views::corewm::TooltipController* tooltip_controller() {
 343     return tooltip_controller_.get();
 344   }
 345   internal::OverlayEventFilter* overlay_filter() {
 346     return overlay_filter_.get();
 347   }
 348   DesktopBackgroundController* desktop_background_controller() {
 349     return desktop_background_controller_.get();
 350   }
 351   PowerButtonController* power_button_controller() {
 352     return power_button_controller_.get();
 353   }
 354   LockStateController* lock_state_controller() {
 355     return lock_state_controller_.get();
 356   }
 357   MruWindowTracker* mru_window_tracker() {
 358     return mru_window_tracker_.get();
 359   }
 360   UserActivityDetector* user_activity_detector() {
 361     return user_activity_detector_.get();
 362   }
 363   VideoDetector* video_detector() {
 364     return video_detector_.get();
 365   }
 366   WindowSelectorController* window_selector_controller() {
 367     return window_selector_controller_.get();
 368   }
 369   internal::FocusCycler* focus_cycler() {
 370     return focus_cycler_.get();
 371   }
 372   DisplayController* display_controller() {
 373     return display_controller_.get();
 374   }
 375   internal::MouseCursorEventFilter* mouse_cursor_filter() {
 376     return mouse_cursor_filter_.get();
 377   }
 378   internal::EventTransformationHandler* event_transformation_handler() {
 379     return event_transformation_handler_.get();
 380   }
 381   views::corewm::CursorManager* cursor_manager() { return &cursor_manager_; }
 382
 383   ShellDelegate* delegate() { return delegate_.get(); }
 384
 385   UserWallpaperDelegate* user_wallpaper_delegate() {
 386     return user_wallpaper_delegate_.get();
 387   }
 388
 389   SessionStateDelegate* session_state_delegate() {
 390     return session_state_delegate_.get();
 391   }
 392
 393   AccessibilityDelegate* accessibility_delegate() {
 394     return accessibility_delegate_.get();
 395   }
 396
 397   NewWindowDelegate* new_window_delegate() {
 398     return new_window_delegate_.get();
 399   }
 400
 401   MediaDelegate* media_delegate() {
 402     return media_delegate_.get();
 403   }
 404
 405   HighContrastController* high_contrast_controller() {
 406     return high_contrast_controller_.get();
 407   }
 408
 409   MagnificationController* magnification_controller() {
 410     return magnification_controller_.get();
 411   }
 412
 413   PartialMagnificationController* partial_magnification_controller() {
 414     return partial_magnification_controller_.get();
 415   }
 416
 417   AutoclickController* autoclick_controller() {
 418     return autoclick_controller_.get();
 419   }
 420
 421   aura::client::ActivationClient* activation_client() {
 422     return activation_client_;
 423   }
 424
 425   ShelfItemDelegateManager* shelf_item_delegate_manager() {
 426     return shelf_item_delegate_manager_.get();
 427   }
 428
 429   // Force the shelf to query for it's current visibility state.
 430   void UpdateShelfVisibility();
 431
 432   // TODO(oshima): Define an interface to access shelf/launcher
 433   // state, or just use Launcher.
 434
 435   // Sets/gets the shelf auto-hide behavior on |root_window|.
 436   void SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
 437                                 aura::Window* root_window);
 438   ShelfAutoHideBehavior GetShelfAutoHideBehavior(
 439       aura::Window* root_window) const;
 440
 441   // Sets/gets shelf's alignment on |root_window|.
 442   void SetShelfAlignment(ShelfAlignment alignment,
 443                          aura::Window* root_window);
 444   ShelfAlignment GetShelfAlignment(aura::Window* root_window);
 445
 446   // Dims or undims the screen.
 447   void SetDimming(bool should_dim);
 448
 449   // Notifies |observers_| when entering or exiting fullscreen mode in
 450   // |root_window|.
 451   void NotifyFullscreenStateChange(bool is_fullscreen,
 452                                    aura::Window* root_window);
 453
 454   // Creates a modal background (a partially-opaque fullscreen window)
 455   // on all displays for |window|.
 456   void CreateModalBackground(aura::Window* window);
 457
 458   // Called when a modal window is removed. It will activate
 459   // another modal window if any, or remove modal screens
 460   // on all displays.
 461   void OnModalWindowRemoved(aura::Window* removed);
 462
 463   // Returns WebNotificationTray on the primary root window.
 464   WebNotificationTray* GetWebNotificationTray();
 465
 466   // Does the primary display have status area?
 467   bool HasPrimaryStatusArea();
 468
 469   // Returns the system tray on primary display.
 470   SystemTray* GetPrimarySystemTray();
 471
 472   SystemTrayDelegate* system_tray_delegate() {
 473     return system_tray_delegate_.get();
 474   }
 475
 476   SystemTrayNotifier* system_tray_notifier() {
 477     return system_tray_notifier_.get();
 478   }
 479
 480   static void set_initially_hide_cursor(bool hide) {
 481     initially_hide_cursor_ = hide;
 482   }
 483
 484   internal::ResizeShadowController* resize_shadow_controller() {
 485     return resize_shadow_controller_.get();
 486   }
 487
 488   // Made available for tests.
 489   views::corewm::ShadowController* shadow_controller() {
 490     return shadow_controller_.get();
 491   }
 492
 493   // Starts the animation that occurs on first login.
 494   void DoInitialWorkspaceAnimation();
 495
 496 #if defined(OS_CHROMEOS)
 497 #if defined(USE_X11)
 498   // TODO(oshima): Move these objects to DisplayController.
 499   chromeos::OutputConfigurator* output_configurator() {
 500     return output_configurator_.get();
 501   }
 502   internal::OutputConfiguratorAnimation* output_configurator_animation() {
 503     return output_configurator_animation_.get();
 504   }
 505   internal::DisplayErrorObserver* display_error_observer() {
 506     return display_error_observer_.get();
 507   }
 508 #endif  // defined(USE_X11)
 509
 510   internal::ResolutionNotificationController*
 511       resolution_notification_controller() {
 512     return resolution_notification_controller_.get();
 513   }
 514
 515   internal::LogoutConfirmationController* logout_confirmation_controller() {
 516     return logout_confirmation_controller_.get();
 517   }
 518 #endif  // defined(OS_CHROMEOS)
 519
 520   WindowTreeHostFactory* window_tree_host_factory() {
 521     return window_tree_host_factory_.get();
 522   }
 523
 524   ShelfModel* shelf_model() {
 525     return shelf_model_.get();
 526   }
 527
 528   WindowPositioner* window_positioner() {
 529     return window_positioner_.get();
 530   }
 531
 532   // Returns the launcher delegate, creating if necesary.
 533   ShelfDelegate* GetShelfDelegate();
 534
 535   UserMetricsRecorder* metrics() {
 536     return user_metrics_recorder_.get();
 537   }
 538
 539   void SetTouchHudProjectionEnabled(bool enabled);
 540
 541   bool is_touch_hud_projection_enabled() const {
 542     return is_touch_hud_projection_enabled_;
 543   }
 544
 545 #if defined(OS_CHROMEOS)
 546   // Creates instance of FirstRunHelper. Caller is responsible for deleting
 547   // returned object.
 548   ash::FirstRunHelper* CreateFirstRunHelper();
 549
 550   // Toggles cursor compositing on/off. Native cursor is disabled when cursor
 551   // compositing is enabled, and vice versa.
 552   void SetCursorCompositingEnabled(bool enabled);
 553
 554   StickyKeysController* sticky_keys_controller() {
 555     return sticky_keys_controller_.get();
 556   }
 557 #endif  // defined(OS_CHROMEOS)
 558
 559   GPUSupport* gpu_support() { return gpu_support_.get(); }
 560
 561  private:
 562   FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, TestCursor);
 563   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, MouseEventCursors);
 564   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, TransformActivate);
 565   friend class internal::RootWindowController;
 566   friend class internal::ScopedTargetRootWindow;
 567   friend class test::ShellTestApi;
 568   friend class shell::WindowWatcher;
 569
 570   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 571
 572   // Takes ownership of |delegate|.
 573   explicit Shell(ShellDelegate* delegate);
 574   virtual ~Shell();
 575
 576   void Init();
 577
 578   // Initializes virtual keyboard controller.
 579   void InitKeyboard();
 580
 581   // Initializes the root window so that it can host browser windows.
 582   void InitRootWindow(aura::Window* root_window);
 583
 584   // ash::internal::SystemModalContainerEventFilterDelegate overrides:
 585   virtual bool CanWindowReceiveEvents(aura::Window* window) OVERRIDE;
 586
 587   // Overridden from ui::EventTarget:
 588   virtual bool CanAcceptEvent(const ui::Event& event) OVERRIDE;
 589   virtual EventTarget* GetParentTarget() OVERRIDE;
 590   virtual scoped_ptr<ui::EventTargetIterator> GetChildIterator() const OVERRIDE;
 591   virtual ui::EventTargeter* GetEventTargeter() OVERRIDE;
 592   virtual void OnEvent(ui::Event* event) OVERRIDE;
 593
 594   // Overridden from aura::client::ActivationChangeObserver:
 595   virtual void OnWindowActivated(aura::Window* gained_active,
 596                                  aura::Window* lost_active) OVERRIDE;
 597
 598   static Shell* instance_;
 599
 600   // If set before the Shell is initialized, the mouse cursor will be hidden
 601   // when the screen is initially created.
 602   static bool initially_hide_cursor_;
 603
 604   // When no explicit target display/RootWindow is given, new windows are
 605   // created on |scoped_target_root_window_| , unless NULL in
 606   // which case they are created on |target_root_window_|.
 607   // |target_root_window_| never becomes NULL during the session.
 608   aura::Window* target_root_window_;
 609   aura::Window* scoped_target_root_window_;
 610
 611   // The CompoundEventFilter owned by aura::Env object.
 612   scoped_ptr<views::corewm::CompoundEventFilter> env_filter_;
 613
 614   std::vector<WindowAndBoundsPair> to_restore_;
 615
 616   scoped_ptr<UserMetricsRecorder> user_metrics_recorder_;
 617   scoped_ptr<keyboard::KeyboardController> keyboard_controller_;
 618   scoped_ptr<NestedDispatcherController> nested_dispatcher_controller_;
 619   scoped_ptr<AcceleratorController> accelerator_controller_;
 620   scoped_ptr<ShellDelegate> delegate_;
 621   scoped_ptr<SystemTrayDelegate> system_tray_delegate_;
 622   scoped_ptr<SystemTrayNotifier> system_tray_notifier_;
 623   scoped_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
 624   scoped_ptr<SessionStateDelegate> session_state_delegate_;
 625   scoped_ptr<AccessibilityDelegate> accessibility_delegate_;
 626   scoped_ptr<NewWindowDelegate> new_window_delegate_;
 627   scoped_ptr<MediaDelegate> media_delegate_;
 628   scoped_ptr<ShelfDelegate> shelf_delegate_;
 629   scoped_ptr<ShelfItemDelegateManager> shelf_item_delegate_manager_;
 630   scoped_ptr<internal::ShelfWindowWatcher> shelf_window_watcher_;
 631
 632   scoped_ptr<ShelfModel> shelf_model_;
 633   scoped_ptr<WindowPositioner> window_positioner_;
 634
 635   scoped_ptr<internal::AppListController> app_list_controller_;
 636
 637   scoped_ptr<internal::DragDropController> drag_drop_controller_;
 638   scoped_ptr<internal::ResizeShadowController> resize_shadow_controller_;
 639   scoped_ptr<views::corewm::ShadowController> shadow_controller_;
 640   scoped_ptr<views::corewm::VisibilityController> visibility_controller_;
 641   scoped_ptr<views::corewm::WindowModalityController>
 642       window_modality_controller_;
 643   scoped_ptr<views::corewm::TooltipController> tooltip_controller_;
 644   scoped_ptr<DesktopBackgroundController> desktop_background_controller_;
 645   scoped_ptr<PowerButtonController> power_button_controller_;
 646   scoped_ptr<LockStateController> lock_state_controller_;
 647   scoped_ptr<MruWindowTracker> mru_window_tracker_;
 648   scoped_ptr<UserActivityDetector> user_activity_detector_;
 649   scoped_ptr<VideoDetector> video_detector_;
 650   scoped_ptr<WindowSelectorController> window_selector_controller_;
 651   scoped_ptr<internal::FocusCycler> focus_cycler_;
 652   scoped_ptr<DisplayController> display_controller_;
 653   scoped_ptr<HighContrastController> high_contrast_controller_;
 654   scoped_ptr<MagnificationController> magnification_controller_;
 655   scoped_ptr<PartialMagnificationController> partial_magnification_controller_;
 656   scoped_ptr<AutoclickController> autoclick_controller_;
 657   scoped_ptr<aura::client::FocusClient> focus_client_;
 658   aura::client::ActivationClient* activation_client_;
 659   scoped_ptr<internal::MouseCursorEventFilter> mouse_cursor_filter_;
 660   scoped_ptr<internal::ScreenPositionController> screen_position_controller_;
 661   scoped_ptr<internal::SystemModalContainerEventFilter> modality_filter_;
 662   scoped_ptr<internal::EventClientImpl> event_client_;
 663   scoped_ptr<internal::EventTransformationHandler>
 664       event_transformation_handler_;
 665   scoped_ptr<WindowTreeHostFactory> window_tree_host_factory_;
 666
 667   // An event filter that pre-handles key events while the partial
 668   // screenshot UI or the keyboard overlay is active.
 669   scoped_ptr<internal::OverlayEventFilter> overlay_filter_;
 670
 671   // An event filter for logging keyboard-related metrics.
 672   scoped_ptr<internal::KeyboardUMAEventFilter> keyboard_metrics_filter_;
 673
 674   // An event filter which handles moving and resizing windows.
 675   scoped_ptr<ToplevelWindowEventHandler> toplevel_window_event_handler_;
 676
 677   // An event filter which handles system level gestures
 678   scoped_ptr<internal::SystemGestureEventFilter> system_gesture_filter_;
 679
 680   // An event filter that pre-handles global accelerators.
 681   scoped_ptr<internal::AcceleratorFilter> accelerator_filter_;
 682
 683   // An event filter that pre-handles all key events to send them to an IME.
 684   scoped_ptr<views::corewm::InputMethodEventFilter> input_method_filter_;
 685
 686   scoped_ptr<internal::DisplayManager> display_manager_;
 687   scoped_ptr<base::WeakPtrFactory<internal::DisplayManager> >
 688       weak_display_manager_factory_;
 689
 690   scoped_ptr<internal::LocaleNotificationController>
 691       locale_notification_controller_;
 692
 693   // The maximized window manager (if enabled).
 694   scoped_ptr<internal::MaximizeModeWindowManager> maximize_mode_window_manager_;
 695
 696 #if defined(OS_CHROMEOS)
 697   scoped_ptr<internal::PowerEventObserver> power_event_observer_;
 698   scoped_ptr<internal::UserActivityNotifier> user_activity_notifier_;
 699   scoped_ptr<internal::VideoActivityNotifier> video_activity_notifier_;
 700   scoped_ptr<StickyKeysController> sticky_keys_controller_;
 701   scoped_ptr<internal::ResolutionNotificationController>
 702       resolution_notification_controller_;
 703   scoped_ptr<internal::BluetoothNotificationController>
 704       bluetooth_notification_controller_;
 705   scoped_ptr<internal::LogoutConfirmationController>
 706       logout_confirmation_controller_;
 707 #if defined(USE_X11)
 708   // Controls video output device state.
 709   scoped_ptr<chromeos::OutputConfigurator> output_configurator_;
 710   scoped_ptr<internal::OutputConfiguratorAnimation>
 711       output_configurator_animation_;
 712   scoped_ptr<internal::DisplayErrorObserver> display_error_observer_;
 713   scoped_ptr<internal::ProjectingObserver> projecting_observer_;
 714
 715   // Listens for output changes and updates the display manager.
 716   scoped_ptr<internal::DisplayChangeObserver> display_change_observer_;
 717
 718   scoped_ptr<ui::EventHandler> magnifier_key_scroll_handler_;
 719   scoped_ptr<ui::EventHandler> speech_feedback_handler_;
 720 #endif  // defined(USE_X11)
 721 #endif  // defined(OS_CHROMEOS)
 722
 723   // |native_cursor_manager_| is owned by |cursor_manager_|, but we keep a
 724   // pointer to vend to test code.
 725   AshNativeCursorManager* native_cursor_manager_;
 726   views::corewm::CursorManager cursor_manager_;
 727
 728   ObserverList<ShellObserver> observers_;
 729
 730   // For testing only: simulate that a modal window is open
 731   bool simulate_modal_window_open_for_testing_;
 732
 733   bool is_touch_hud_projection_enabled_;
 734
 735   // Injected content::GPUDataManager support.
 736   scoped_ptr<GPUSupport> gpu_support_;
 737
 738   DISALLOW_COPY_AND_ASSIGN(Shell);
 739 };
 740
 741 }  // namespace ash
 742
 743 #endif  // ASH_SHELL_H_