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/insets.h"
  27 #include "ui/gfx/screen.h"
  28 #include "ui/gfx/size.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 UserActivityPowerManagerNotifier;
  55 }
  56 namespace views {
  57 class NonClientFrameView;
  58 class Widget;
  59 namespace corewm {
  60 class TooltipController;
  61 }
  62 }
  63
  64 namespace wm {
  65 class AcceleratorFilter;
  66 class CompoundEventFilter;
  67 class InputMethodEventFilter;
  68 class NestedAcceleratorController;
  69 class ShadowController;
  70 class VisibilityController;
  71 class UserActivityDetector;
  72 class WindowModalityController;
  73 }
  74
  75 namespace ash {
  76
  77 class AcceleratorController;
  78 class AccelerometerController;
  79 class AccessibilityDelegate;
  80 class AppListController;
  81 class AshNativeCursorManager;
  82 class AutoclickController;
  83 class BluetoothNotificationController;
  84 class CaptureController;
  85 class DesktopBackgroundController;
  86 class DisplayChangeObserver;
  87 class DisplayConfiguratorAnimation;
  88 class DisplayController;
  89 class DisplayErrorObserver;
  90 class DisplayManager;
  91 class DragDropController;
  92 class EventClientImpl;
  93 class EventRewriterEventFilter;
  94 class EventTransformationHandler;
  95 class FirstRunHelper;
  96 class FocusCycler;
  97 class GPUSupport;
  98 class HighContrastController;
  99 class KeyboardUMAEventFilter;
 100 class LastWindowClosedLogoutReminder;
 101 class LocaleNotificationController;
 102 class LockStateController;
 103 class LogoutConfirmationController;
 104 class MagnificationController;
 105 class MaximizeModeController;
 106 class MaximizeModeWindowManager;
 107 class MediaDelegate;
 108 class MouseCursorEventFilter;
 109 class MruWindowTracker;
 110 class NewWindowDelegate;
 111 class OverlayEventFilter;
 112 class PartialMagnificationController;
 113 class PowerButtonController;
 114 class PowerEventObserver;
 115 class ProjectingObserver;
 116 class ResizeShadowController;
 117 class ResolutionNotificationController;
 118 class RootWindowController;
 119 class ScopedTargetRootWindow;
 120 class ScreenAsh;
 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 UserActivityDetector;
 143 class UserWallpaperDelegate;
 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   // Toggles 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 ToggleAppList(aura::Window* anchor);
 238
 239   // Returns app list target visibility.
 240   bool GetAppListTargetVisibility() const;
 241
 242   // Returns app list window or NULL if it is not visible.
 243   aura::Window* GetAppListWindow();
 244
 245   // Returns app list view or NULL if it is not visible.
 246   app_list::AppListView* GetAppListView();
 247
 248   // Returns true if a system-modal dialog window is currently open.
 249   bool IsSystemModalWindowOpen() const;
 250
 251   // For testing only: set simulation that a modal window is open
 252   void SimulateModalWindowOpenForTesting(bool modal_window_open) {
 253     simulate_modal_window_open_for_testing_ = modal_window_open;
 254   }
 255
 256   // Creates a default views::NonClientFrameView for use by windows in the
 257   // Ash environment.
 258   views::NonClientFrameView* CreateDefaultNonClientFrameView(
 259       views::Widget* widget);
 260
 261   // Rotates focus through containers that can receive focus.
 262   void RotateFocus(Direction direction);
 263
 264   // Sets the work area insets of the display that contains |window|,
 265   // this notifies observers too.
 266   // TODO(sky): this no longer really replicates what happens and is unreliable.
 267   // Remove this.
 268   void SetDisplayWorkAreaInsets(aura::Window* window,
 269                                 const gfx::Insets& insets);
 270
 271   // Called when the user logs in.
 272   void OnLoginStateChanged(user::LoginStatus status);
 273
 274   // Called after the logged-in user's profile is ready.
 275   void OnLoginUserProfilePrepared();
 276
 277   // Called when the login status changes.
 278   // TODO(oshima): Investigate if we can merge this and |OnLoginStateChanged|.
 279   void UpdateAfterLoginStatusChange(user::LoginStatus status);
 280
 281   // Called when the application is exiting.
 282   void OnAppTerminating();
 283
 284   // Called when the screen is locked (after the lock window is visible) or
 285   // unlocked.
 286   void OnLockStateChanged(bool locked);
 287
 288   // Called when a casting session is started or stopped.
 289   void OnCastingSessionStartedOrStopped(bool started);
 290
 291   // Called when the overview mode is about to be started (before the windows
 292   // get re-arranged).
 293   void OnOverviewModeStarting();
 294
 295   // Called before the overview mode is ending (before the windows get arranged
 296   // to their final position).
 297   void OnOverviewModeEnding();
 298
 299   // Called after maximize mode has started, windows might still animate though.
 300   void OnMaximizeModeStarted();
 301
 302   // Called after maximize mode has ended, windows might still be returning to
 303   // their original position.
 304   void OnMaximizeModeEnded();
 305
 306   // Called when a root window is created.
 307   void OnRootWindowAdded(aura::Window* root_window);
 308
 309   // Initializes |shelf_|.  Does nothing if it's already initialized.
 310   void CreateShelf();
 311
 312   // Called when the shelf is created for |root_window|.
 313   void OnShelfCreatedForRootWindow(aura::Window* root_window);
 314
 315   // Creates a virtual keyboard. Deletes the old virtual keyboard if it already
 316   // exists.
 317   void CreateKeyboard();
 318
 319   // Deactivates the virtual keyboard.
 320   void DeactivateKeyboard();
 321
 322   // Show shelf view if it was created hidden (before session has started).
 323   void ShowShelf();
 324
 325   // Adds/removes observer.
 326   void AddShellObserver(ShellObserver* observer);
 327   void RemoveShellObserver(ShellObserver* observer);
 328
 329 #if defined(OS_CHROMEOS)
 330   // Test if MaximizeModeWindowManager is not enabled, and if
 331   // MaximizeModeController is not currently setting a display rotation. Or if
 332   // the |resolution_notification_controller_| is not showing its confirmation
 333   // dialog. If true then changes to display settings can be saved.
 334   bool ShouldSaveDisplaySettings();
 335 #endif
 336
 337   AcceleratorController* accelerator_controller() {
 338     return accelerator_controller_.get();
 339   }
 340
 341   DisplayManager* display_manager() { return display_manager_.get(); }
 342   ::wm::InputMethodEventFilter* input_method_filter() {
 343     return input_method_filter_.get();
 344   }
 345   ::wm::CompoundEventFilter* env_filter() {
 346     return env_filter_.get();
 347   }
 348   views::corewm::TooltipController* tooltip_controller() {
 349     return tooltip_controller_.get();
 350   }
 351   OverlayEventFilter* overlay_filter() { return overlay_filter_.get(); }
 352   DesktopBackgroundController* desktop_background_controller() {
 353     return desktop_background_controller_.get();
 354   }
 355   PowerButtonController* power_button_controller() {
 356     return power_button_controller_.get();
 357   }
 358   LockStateController* lock_state_controller() {
 359     return lock_state_controller_.get();
 360   }
 361   MruWindowTracker* mru_window_tracker() {
 362     return mru_window_tracker_.get();
 363   }
 364   ::wm::UserActivityDetector* user_activity_detector() {
 365     return user_activity_detector_.get();
 366   }
 367   VideoDetector* video_detector() {
 368     return video_detector_.get();
 369   }
 370   WindowCycleController* window_cycle_controller() {
 371     return window_cycle_controller_.get();
 372   }
 373   WindowSelectorController* window_selector_controller() {
 374     return window_selector_controller_.get();
 375   }
 376   FocusCycler* focus_cycler() { return focus_cycler_.get(); }
 377   DisplayController* display_controller() {
 378     return display_controller_.get();
 379   }
 380 #if defined(OS_CHROMEOS) && defined(USE_X11)
 381   TouchTransformerController* touch_transformer_controller() {
 382     return touch_transformer_controller_.get();
 383   }
 384 #endif  // defined(OS_CHROMEOS) && defined(USE_X11)
 385   MouseCursorEventFilter* mouse_cursor_filter() {
 386     return mouse_cursor_filter_.get();
 387   }
 388   EventTransformationHandler* event_transformation_handler() {
 389     return event_transformation_handler_.get();
 390   }
 391   ::wm::CursorManager* cursor_manager() { return &cursor_manager_; }
 392
 393   ShellDelegate* delegate() { return delegate_.get(); }
 394
 395   UserWallpaperDelegate* user_wallpaper_delegate() {
 396     return user_wallpaper_delegate_.get();
 397   }
 398
 399   SessionStateDelegate* session_state_delegate() {
 400     return session_state_delegate_.get();
 401   }
 402
 403   AccessibilityDelegate* accessibility_delegate() {
 404     return accessibility_delegate_.get();
 405   }
 406
 407   NewWindowDelegate* new_window_delegate() {
 408     return new_window_delegate_.get();
 409   }
 410
 411   MediaDelegate* media_delegate() {
 412     return media_delegate_.get();
 413   }
 414
 415   HighContrastController* high_contrast_controller() {
 416     return high_contrast_controller_.get();
 417   }
 418
 419   MagnificationController* magnification_controller() {
 420     return magnification_controller_.get();
 421   }
 422
 423   PartialMagnificationController* partial_magnification_controller() {
 424     return partial_magnification_controller_.get();
 425   }
 426
 427   AutoclickController* autoclick_controller() {
 428     return autoclick_controller_.get();
 429   }
 430
 431   aura::client::ActivationClient* activation_client() {
 432     return activation_client_;
 433   }
 434
 435   ShelfItemDelegateManager* shelf_item_delegate_manager() {
 436     return shelf_item_delegate_manager_.get();
 437   }
 438
 439   // Force the shelf to query for it's current visibility state.
 440   void UpdateShelfVisibility();
 441
 442   // TODO(oshima): Define an interface to access shelf/launcher
 443   // state, or just use Launcher.
 444
 445   // Sets/gets the shelf auto-hide behavior on |root_window|.
 446   void SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
 447                                 aura::Window* root_window);
 448   ShelfAutoHideBehavior GetShelfAutoHideBehavior(
 449       aura::Window* root_window) const;
 450
 451   // Sets/gets shelf's alignment on |root_window|.
 452   void SetShelfAlignment(ShelfAlignment alignment,
 453                          aura::Window* root_window);
 454   ShelfAlignment GetShelfAlignment(const aura::Window* root_window);
 455
 456   // Dims or undims the screen.
 457   void SetDimming(bool should_dim);
 458
 459   // Notifies |observers_| when entering or exiting fullscreen mode in
 460   // |root_window|.
 461   void NotifyFullscreenStateChange(bool is_fullscreen,
 462                                    aura::Window* root_window);
 463
 464   // Creates a modal background (a partially-opaque fullscreen window)
 465   // on all displays for |window|.
 466   void CreateModalBackground(aura::Window* window);
 467
 468   // Called when a modal window is removed. It will activate
 469   // another modal window if any, or remove modal screens
 470   // on all displays.
 471   void OnModalWindowRemoved(aura::Window* removed);
 472
 473   // Returns WebNotificationTray on the primary root window.
 474   WebNotificationTray* GetWebNotificationTray();
 475
 476   // Does the primary display have status area?
 477   bool HasPrimaryStatusArea();
 478
 479   // Returns the system tray on primary display.
 480   SystemTray* GetPrimarySystemTray();
 481
 482   SystemTrayDelegate* system_tray_delegate() {
 483     return system_tray_delegate_.get();
 484   }
 485
 486   SystemTrayNotifier* system_tray_notifier() {
 487     return system_tray_notifier_.get();
 488   }
 489
 490   static void set_initially_hide_cursor(bool hide) {
 491     initially_hide_cursor_ = hide;
 492   }
 493
 494   ResizeShadowController* resize_shadow_controller() {
 495     return resize_shadow_controller_.get();
 496   }
 497
 498   // Made available for tests.
 499   ::wm::ShadowController* shadow_controller() {
 500     return shadow_controller_.get();
 501   }
 502
 503   // Starts the animation that occurs on first login.
 504   void DoInitialWorkspaceAnimation();
 505
 506   AccelerometerController* accelerometer_controller() {
 507     return accelerometer_controller_.get();
 508   }
 509
 510   MaximizeModeController* maximize_mode_controller() {
 511     return maximize_mode_controller_.get();
 512   }
 513
 514 #if defined(OS_CHROMEOS)
 515   // TODO(oshima): Move these objects to DisplayController.
 516   ui::DisplayConfigurator* display_configurator() {
 517     return display_configurator_.get();
 518   }
 519   DisplayConfiguratorAnimation* display_configurator_animation() {
 520     return display_configurator_animation_.get();
 521   }
 522   DisplayErrorObserver* display_error_observer() {
 523     return display_error_observer_.get();
 524   }
 525
 526   ResolutionNotificationController* resolution_notification_controller() {
 527     return resolution_notification_controller_.get();
 528   }
 529
 530   LogoutConfirmationController* logout_confirmation_controller() {
 531     return logout_confirmation_controller_.get();
 532   }
 533 #endif  // defined(OS_CHROMEOS)
 534
 535   ShelfModel* shelf_model() {
 536     return shelf_model_.get();
 537   }
 538
 539   WindowPositioner* window_positioner() {
 540     return window_positioner_.get();
 541   }
 542
 543   // Returns the launcher delegate, creating if necesary.
 544   ShelfDelegate* GetShelfDelegate();
 545
 546   UserMetricsRecorder* metrics() {
 547     return user_metrics_recorder_.get();
 548   }
 549
 550   void SetTouchHudProjectionEnabled(bool enabled);
 551
 552   bool is_touch_hud_projection_enabled() const {
 553     return is_touch_hud_projection_enabled_;
 554   }
 555
 556 #if defined(OS_CHROMEOS)
 557   // Creates instance of FirstRunHelper. Caller is responsible for deleting
 558   // returned object.
 559   ash::FirstRunHelper* CreateFirstRunHelper();
 560
 561   // Toggles cursor compositing on/off. Native cursor is disabled when cursor
 562   // compositing is enabled, and vice versa.
 563   void SetCursorCompositingEnabled(bool enabled);
 564
 565   StickyKeysController* sticky_keys_controller() {
 566     return sticky_keys_controller_.get();
 567   }
 568 #endif  // defined(OS_CHROMEOS)
 569
 570   GPUSupport* gpu_support() { return gpu_support_.get(); }
 571
 572  private:
 573   FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, TestCursor);
 574   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, MouseEventCursors);
 575   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, TransformActivate);
 576   friend class RootWindowController;
 577   friend class ScopedTargetRootWindow;
 578   friend class test::ShellTestApi;
 579   friend class shell::WindowWatcher;
 580
 581   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 582
 583   // Takes ownership of |delegate|.
 584   explicit Shell(ShellDelegate* delegate);
 585   virtual ~Shell();
 586
 587   void Init(const ShellInitParams& init_params);
 588
 589   // Initializes virtual keyboard controller.
 590   void InitKeyboard();
 591
 592   // Initializes the root window so that it can host browser windows.
 593   void InitRootWindow(aura::Window* root_window);
 594
 595   // ash::SystemModalContainerEventFilterDelegate overrides:
 596   virtual bool CanWindowReceiveEvents(aura::Window* window) OVERRIDE;
 597
 598   // Overridden from ui::EventTarget:
 599   virtual bool CanAcceptEvent(const ui::Event& event) OVERRIDE;
 600   virtual EventTarget* GetParentTarget() OVERRIDE;
 601   virtual scoped_ptr<ui::EventTargetIterator> GetChildIterator() const OVERRIDE;
 602   virtual ui::EventTargeter* GetEventTargeter() OVERRIDE;
 603   virtual void OnEvent(ui::Event* event) OVERRIDE;
 604
 605   // Overridden from aura::client::ActivationChangeObserver:
 606   virtual void OnWindowActivated(aura::Window* gained_active,
 607                                  aura::Window* lost_active) OVERRIDE;
 608
 609   static Shell* instance_;
 610
 611   // If set before the Shell is initialized, the mouse cursor will be hidden
 612   // when the screen is initially created.
 613   static bool initially_hide_cursor_;
 614
 615   // When no explicit target display/RootWindow is given, new windows are
 616   // created on |scoped_target_root_window_| , unless NULL in
 617   // which case they are created on |target_root_window_|.
 618   // |target_root_window_| never becomes NULL during the session.
 619   aura::Window* target_root_window_;
 620   aura::Window* scoped_target_root_window_;
 621
 622   // The CompoundEventFilter owned by aura::Env object.
 623   scoped_ptr< ::wm::CompoundEventFilter> env_filter_;
 624
 625   std::vector<WindowAndBoundsPair> to_restore_;
 626
 627   scoped_ptr<UserMetricsRecorder> user_metrics_recorder_;
 628   scoped_ptr< ::wm::NestedAcceleratorController> nested_accelerator_controller_;
 629   scoped_ptr<AcceleratorController> accelerator_controller_;
 630   scoped_ptr<ShellDelegate> delegate_;
 631   scoped_ptr<SystemTrayDelegate> system_tray_delegate_;
 632   scoped_ptr<SystemTrayNotifier> system_tray_notifier_;
 633   scoped_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
 634   scoped_ptr<SessionStateDelegate> session_state_delegate_;
 635   scoped_ptr<AccessibilityDelegate> accessibility_delegate_;
 636   scoped_ptr<NewWindowDelegate> new_window_delegate_;
 637   scoped_ptr<MediaDelegate> media_delegate_;
 638   scoped_ptr<ShelfDelegate> shelf_delegate_;
 639   scoped_ptr<ShelfItemDelegateManager> shelf_item_delegate_manager_;
 640   scoped_ptr<ShelfWindowWatcher> shelf_window_watcher_;
 641
 642   scoped_ptr<ShelfModel> shelf_model_;
 643   scoped_ptr<WindowPositioner> window_positioner_;
 644
 645   scoped_ptr<AppListController> app_list_controller_;
 646
 647   scoped_ptr<DragDropController> drag_drop_controller_;
 648   scoped_ptr<ResizeShadowController> resize_shadow_controller_;
 649   scoped_ptr< ::wm::ShadowController> shadow_controller_;
 650   scoped_ptr< ::wm::VisibilityController> visibility_controller_;
 651   scoped_ptr< ::wm::WindowModalityController> window_modality_controller_;
 652   scoped_ptr<views::corewm::TooltipController> tooltip_controller_;
 653   scoped_ptr<DesktopBackgroundController> desktop_background_controller_;
 654   scoped_ptr<PowerButtonController> power_button_controller_;
 655   scoped_ptr<LockStateController> lock_state_controller_;
 656   scoped_ptr<MruWindowTracker> mru_window_tracker_;
 657   scoped_ptr< ::wm::UserActivityDetector> user_activity_detector_;
 658   scoped_ptr<VideoDetector> video_detector_;
 659   scoped_ptr<WindowCycleController> window_cycle_controller_;
 660   scoped_ptr<WindowSelectorController> window_selector_controller_;
 661   scoped_ptr<FocusCycler> focus_cycler_;
 662   scoped_ptr<DisplayController> display_controller_;
 663   scoped_ptr<HighContrastController> high_contrast_controller_;
 664   scoped_ptr<MagnificationController> magnification_controller_;
 665   scoped_ptr<PartialMagnificationController> partial_magnification_controller_;
 666   scoped_ptr<AutoclickController> autoclick_controller_;
 667   scoped_ptr<aura::client::FocusClient> focus_client_;
 668   aura::client::ActivationClient* activation_client_;
 669
 670   scoped_ptr<MouseCursorEventFilter> mouse_cursor_filter_;
 671   scoped_ptr<ScreenPositionController> screen_position_controller_;
 672   scoped_ptr<SystemModalContainerEventFilter> modality_filter_;
 673   scoped_ptr<EventClientImpl> event_client_;
 674   scoped_ptr<EventTransformationHandler> event_transformation_handler_;
 675
 676   // An event filter that pre-handles key events while the partial
 677   // screenshot UI or the keyboard overlay is active.
 678   scoped_ptr<OverlayEventFilter> overlay_filter_;
 679
 680   // An event filter for logging keyboard-related metrics.
 681   scoped_ptr<KeyboardUMAEventFilter> keyboard_metrics_filter_;
 682
 683   // An event filter which handles moving and resizing windows.
 684   scoped_ptr<ToplevelWindowEventHandler> toplevel_window_event_handler_;
 685
 686   // An event filter which handles system level gestures
 687   scoped_ptr<SystemGestureEventFilter> system_gesture_filter_;
 688
 689   // An event filter that pre-handles global accelerators.
 690   scoped_ptr< ::wm::AcceleratorFilter> accelerator_filter_;
 691
 692   // An event filter that pre-handles all key events to send them to an IME.
 693   scoped_ptr< ::wm::InputMethodEventFilter> input_method_filter_;
 694
 695   scoped_ptr<DisplayManager> display_manager_;
 696   scoped_ptr<base::WeakPtrFactory<DisplayManager> >
 697       weak_display_manager_factory_;
 698
 699   scoped_ptr<LocaleNotificationController> locale_notification_controller_;
 700
 701   scoped_ptr<AccelerometerController> accelerometer_controller_;
 702
 703 #if defined(OS_CHROMEOS)
 704   scoped_ptr<PowerEventObserver> power_event_observer_;
 705   scoped_ptr<ui::UserActivityPowerManagerNotifier> user_activity_notifier_;
 706   scoped_ptr<VideoActivityNotifier> video_activity_notifier_;
 707   scoped_ptr<StickyKeysController> sticky_keys_controller_;
 708   scoped_ptr<ResolutionNotificationController>
 709       resolution_notification_controller_;
 710   scoped_ptr<BluetoothNotificationController>
 711       bluetooth_notification_controller_;
 712   scoped_ptr<LogoutConfirmationController> logout_confirmation_controller_;
 713   scoped_ptr<LastWindowClosedLogoutReminder>
 714       last_window_closed_logout_reminder_;
 715   // Controls video output device state.
 716   scoped_ptr<ui::DisplayConfigurator> display_configurator_;
 717   scoped_ptr<DisplayConfiguratorAnimation> display_configurator_animation_;
 718   scoped_ptr<DisplayErrorObserver> display_error_observer_;
 719   scoped_ptr<ProjectingObserver> projecting_observer_;
 720
 721   // Listens for output changes and updates the display manager.
 722   scoped_ptr<DisplayChangeObserver> display_change_observer_;
 723
 724 #if defined(USE_X11)
 725   scoped_ptr<ui::EventHandler> magnifier_key_scroll_handler_;
 726   scoped_ptr<ui::EventHandler> speech_feedback_handler_;
 727   scoped_ptr<TouchTransformerController> touch_transformer_controller_;
 728 #endif  // defined(USE_X11)
 729 #endif  // defined(OS_CHROMEOS)
 730
 731   scoped_ptr<MaximizeModeController> maximize_mode_controller_;
 732
 733   // |native_cursor_manager_| is owned by |cursor_manager_|, but we keep a
 734   // pointer to vend to test code.
 735   AshNativeCursorManager* native_cursor_manager_;
 736
 737 // Cursor may be hidden on certain key events in ChromeOS, whereas we never hide
 738 // the cursor on Windows.
 739 #if defined(OS_CHROMEOS)
 740   CursorManager cursor_manager_;
 741 #else  // !defined(OS_CHROMEOS)
 742   ::wm::CursorManager cursor_manager_;
 743 #endif  // defined(OS_CHROMEOS)
 744
 745   ObserverList<ShellObserver> observers_;
 746
 747   // For testing only: simulate that a modal window is open
 748   bool simulate_modal_window_open_for_testing_;
 749
 750   bool is_touch_hud_projection_enabled_;
 751
 752   // Injected content::GPUDataManager support.
 753   scoped_ptr<GPUSupport> gpu_support_;
 754
 755   DISALLOW_COPY_AND_ASSIGN(Shell);
 756 };
 757
 758 }  // namespace ash
 759
 760 #endif  // ASH_SHELL_H_