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 CompoundEventFilter;
  66 class InputMethodEventFilter;
  67 class ShadowController;
  68 class VisibilityController;
  69 class UserActivityDetector;
  70 class WindowModalityController;
  71 }
  72
  73 namespace ash {
  74
  75 class AcceleratorController;
  76 class AccelerometerController;
  77 class AcceleratorFilter;
  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 NestedDispatcherController;
 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   // Turn the always maximize mode window manager on or off.
 330   void EnableMaximizeModeWindowManager(bool enable);
 331
 332   // Test if the MaximizeModeWindowManager is enabled or not.
 333   bool IsMaximizeModeWindowManagerEnabled();
 334
 335   AcceleratorController* accelerator_controller() {
 336     return accelerator_controller_.get();
 337   }
 338
 339   DisplayManager* display_manager() { return display_manager_.get(); }
 340   ::wm::InputMethodEventFilter* input_method_filter() {
 341     return input_method_filter_.get();
 342   }
 343   ::wm::CompoundEventFilter* env_filter() {
 344     return env_filter_.get();
 345   }
 346   views::corewm::TooltipController* tooltip_controller() {
 347     return tooltip_controller_.get();
 348   }
 349   OverlayEventFilter* overlay_filter() { return overlay_filter_.get(); }
 350   DesktopBackgroundController* desktop_background_controller() {
 351     return desktop_background_controller_.get();
 352   }
 353   PowerButtonController* power_button_controller() {
 354     return power_button_controller_.get();
 355   }
 356   LockStateController* lock_state_controller() {
 357     return lock_state_controller_.get();
 358   }
 359   MruWindowTracker* mru_window_tracker() {
 360     return mru_window_tracker_.get();
 361   }
 362   ::wm::UserActivityDetector* user_activity_detector() {
 363     return user_activity_detector_.get();
 364   }
 365   VideoDetector* video_detector() {
 366     return video_detector_.get();
 367   }
 368   WindowCycleController* window_cycle_controller() {
 369     return window_cycle_controller_.get();
 370   }
 371   WindowSelectorController* window_selector_controller() {
 372     return window_selector_controller_.get();
 373   }
 374   FocusCycler* focus_cycler() { return focus_cycler_.get(); }
 375   DisplayController* display_controller() {
 376     return display_controller_.get();
 377   }
 378 #if defined(OS_CHROMEOS) && defined(USE_X11)
 379   TouchTransformerController* touch_transformer_controller() {
 380     return touch_transformer_controller_.get();
 381   }
 382 #endif  // defined(OS_CHROMEOS) && defined(USE_X11)
 383   MouseCursorEventFilter* mouse_cursor_filter() {
 384     return mouse_cursor_filter_.get();
 385   }
 386   EventTransformationHandler* event_transformation_handler() {
 387     return event_transformation_handler_.get();
 388   }
 389   ::wm::CursorManager* cursor_manager() { return &cursor_manager_; }
 390
 391   ShellDelegate* delegate() { return delegate_.get(); }
 392
 393   UserWallpaperDelegate* user_wallpaper_delegate() {
 394     return user_wallpaper_delegate_.get();
 395   }
 396
 397   SessionStateDelegate* session_state_delegate() {
 398     return session_state_delegate_.get();
 399   }
 400
 401   AccessibilityDelegate* accessibility_delegate() {
 402     return accessibility_delegate_.get();
 403   }
 404
 405   NewWindowDelegate* new_window_delegate() {
 406     return new_window_delegate_.get();
 407   }
 408
 409   MediaDelegate* media_delegate() {
 410     return media_delegate_.get();
 411   }
 412
 413   HighContrastController* high_contrast_controller() {
 414     return high_contrast_controller_.get();
 415   }
 416
 417   MagnificationController* magnification_controller() {
 418     return magnification_controller_.get();
 419   }
 420
 421   PartialMagnificationController* partial_magnification_controller() {
 422     return partial_magnification_controller_.get();
 423   }
 424
 425   AutoclickController* autoclick_controller() {
 426     return autoclick_controller_.get();
 427   }
 428
 429   aura::client::ActivationClient* activation_client() {
 430     return activation_client_;
 431   }
 432
 433   ShelfItemDelegateManager* shelf_item_delegate_manager() {
 434     return shelf_item_delegate_manager_.get();
 435   }
 436
 437   // Force the shelf to query for it's current visibility state.
 438   void UpdateShelfVisibility();
 439
 440   // TODO(oshima): Define an interface to access shelf/launcher
 441   // state, or just use Launcher.
 442
 443   // Sets/gets the shelf auto-hide behavior on |root_window|.
 444   void SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
 445                                 aura::Window* root_window);
 446   ShelfAutoHideBehavior GetShelfAutoHideBehavior(
 447       aura::Window* root_window) const;
 448
 449   // Sets/gets shelf's alignment on |root_window|.
 450   void SetShelfAlignment(ShelfAlignment alignment,
 451                          aura::Window* root_window);
 452   ShelfAlignment GetShelfAlignment(aura::Window* root_window);
 453
 454   // Dims or undims the screen.
 455   void SetDimming(bool should_dim);
 456
 457   // Notifies |observers_| when entering or exiting fullscreen mode in
 458   // |root_window|.
 459   void NotifyFullscreenStateChange(bool is_fullscreen,
 460                                    aura::Window* root_window);
 461
 462   // Creates a modal background (a partially-opaque fullscreen window)
 463   // on all displays for |window|.
 464   void CreateModalBackground(aura::Window* window);
 465
 466   // Called when a modal window is removed. It will activate
 467   // another modal window if any, or remove modal screens
 468   // on all displays.
 469   void OnModalWindowRemoved(aura::Window* removed);
 470
 471   // Returns WebNotificationTray on the primary root window.
 472   WebNotificationTray* GetWebNotificationTray();
 473
 474   // Does the primary display have status area?
 475   bool HasPrimaryStatusArea();
 476
 477   // Returns the system tray on primary display.
 478   SystemTray* GetPrimarySystemTray();
 479
 480   SystemTrayDelegate* system_tray_delegate() {
 481     return system_tray_delegate_.get();
 482   }
 483
 484   SystemTrayNotifier* system_tray_notifier() {
 485     return system_tray_notifier_.get();
 486   }
 487
 488   static void set_initially_hide_cursor(bool hide) {
 489     initially_hide_cursor_ = hide;
 490   }
 491
 492   ResizeShadowController* resize_shadow_controller() {
 493     return resize_shadow_controller_.get();
 494   }
 495
 496   // Made available for tests.
 497   ::wm::ShadowController* shadow_controller() {
 498     return shadow_controller_.get();
 499   }
 500
 501   // Starts the animation that occurs on first login.
 502   void DoInitialWorkspaceAnimation();
 503
 504   AccelerometerController* accelerometer_controller() {
 505     return accelerometer_controller_.get();
 506   }
 507
 508   MaximizeModeController* maximize_mode_controller() {
 509     return maximize_mode_controller_.get();
 510   }
 511
 512 #if defined(OS_CHROMEOS)
 513   // TODO(oshima): Move these objects to DisplayController.
 514   ui::DisplayConfigurator* display_configurator() {
 515     return display_configurator_.get();
 516   }
 517   DisplayConfiguratorAnimation* display_configurator_animation() {
 518     return display_configurator_animation_.get();
 519   }
 520   DisplayErrorObserver* display_error_observer() {
 521     return display_error_observer_.get();
 522   }
 523
 524   ResolutionNotificationController* resolution_notification_controller() {
 525     return resolution_notification_controller_.get();
 526   }
 527
 528   LogoutConfirmationController* logout_confirmation_controller() {
 529     return logout_confirmation_controller_.get();
 530   }
 531 #endif  // defined(OS_CHROMEOS)
 532
 533   ShelfModel* shelf_model() {
 534     return shelf_model_.get();
 535   }
 536
 537   WindowPositioner* window_positioner() {
 538     return window_positioner_.get();
 539   }
 540
 541   // Returns the launcher delegate, creating if necesary.
 542   ShelfDelegate* GetShelfDelegate();
 543
 544   UserMetricsRecorder* metrics() {
 545     return user_metrics_recorder_.get();
 546   }
 547
 548   void SetTouchHudProjectionEnabled(bool enabled);
 549
 550   bool is_touch_hud_projection_enabled() const {
 551     return is_touch_hud_projection_enabled_;
 552   }
 553
 554 #if defined(OS_CHROMEOS)
 555   // Creates instance of FirstRunHelper. Caller is responsible for deleting
 556   // returned object.
 557   ash::FirstRunHelper* CreateFirstRunHelper();
 558
 559   // Toggles cursor compositing on/off. Native cursor is disabled when cursor
 560   // compositing is enabled, and vice versa.
 561   void SetCursorCompositingEnabled(bool enabled);
 562
 563   StickyKeysController* sticky_keys_controller() {
 564     return sticky_keys_controller_.get();
 565   }
 566 #endif  // defined(OS_CHROMEOS)
 567
 568   GPUSupport* gpu_support() { return gpu_support_.get(); }
 569
 570  private:
 571   FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, TestCursor);
 572   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, MouseEventCursors);
 573   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, TransformActivate);
 574   friend class RootWindowController;
 575   friend class ScopedTargetRootWindow;
 576   friend class test::ShellTestApi;
 577   friend class shell::WindowWatcher;
 578
 579   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 580
 581   // Takes ownership of |delegate|.
 582   explicit Shell(ShellDelegate* delegate);
 583   virtual ~Shell();
 584
 585   void Init(const ShellInitParams& init_params);
 586
 587   // Initializes virtual keyboard controller.
 588   void InitKeyboard();
 589
 590   // Initializes the root window so that it can host browser windows.
 591   void InitRootWindow(aura::Window* root_window);
 592
 593   // ash::SystemModalContainerEventFilterDelegate overrides:
 594   virtual bool CanWindowReceiveEvents(aura::Window* window) OVERRIDE;
 595
 596   // Overridden from ui::EventTarget:
 597   virtual bool CanAcceptEvent(const ui::Event& event) OVERRIDE;
 598   virtual EventTarget* GetParentTarget() OVERRIDE;
 599   virtual scoped_ptr<ui::EventTargetIterator> GetChildIterator() const OVERRIDE;
 600   virtual ui::EventTargeter* GetEventTargeter() OVERRIDE;
 601   virtual void OnEvent(ui::Event* event) OVERRIDE;
 602
 603   // Overridden from aura::client::ActivationChangeObserver:
 604   virtual void OnWindowActivated(aura::Window* gained_active,
 605                                  aura::Window* lost_active) OVERRIDE;
 606
 607   static Shell* instance_;
 608
 609   // If set before the Shell is initialized, the mouse cursor will be hidden
 610   // when the screen is initially created.
 611   static bool initially_hide_cursor_;
 612
 613   // When no explicit target display/RootWindow is given, new windows are
 614   // created on |scoped_target_root_window_| , unless NULL in
 615   // which case they are created on |target_root_window_|.
 616   // |target_root_window_| never becomes NULL during the session.
 617   aura::Window* target_root_window_;
 618   aura::Window* scoped_target_root_window_;
 619
 620   // The CompoundEventFilter owned by aura::Env object.
 621   scoped_ptr< ::wm::CompoundEventFilter> env_filter_;
 622
 623   std::vector<WindowAndBoundsPair> to_restore_;
 624
 625   scoped_ptr<UserMetricsRecorder> user_metrics_recorder_;
 626   scoped_ptr<NestedDispatcherController> nested_dispatcher_controller_;
 627   scoped_ptr<AcceleratorController> accelerator_controller_;
 628   scoped_ptr<ShellDelegate> delegate_;
 629   scoped_ptr<SystemTrayDelegate> system_tray_delegate_;
 630   scoped_ptr<SystemTrayNotifier> system_tray_notifier_;
 631   scoped_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
 632   scoped_ptr<SessionStateDelegate> session_state_delegate_;
 633   scoped_ptr<AccessibilityDelegate> accessibility_delegate_;
 634   scoped_ptr<NewWindowDelegate> new_window_delegate_;
 635   scoped_ptr<MediaDelegate> media_delegate_;
 636   scoped_ptr<ShelfDelegate> shelf_delegate_;
 637   scoped_ptr<ShelfItemDelegateManager> shelf_item_delegate_manager_;
 638   scoped_ptr<ShelfWindowWatcher> shelf_window_watcher_;
 639
 640   scoped_ptr<ShelfModel> shelf_model_;
 641   scoped_ptr<WindowPositioner> window_positioner_;
 642
 643   scoped_ptr<AppListController> app_list_controller_;
 644
 645   scoped_ptr<DragDropController> drag_drop_controller_;
 646   scoped_ptr<ResizeShadowController> resize_shadow_controller_;
 647   scoped_ptr< ::wm::ShadowController> shadow_controller_;
 648   scoped_ptr< ::wm::VisibilityController> visibility_controller_;
 649   scoped_ptr< ::wm::WindowModalityController> window_modality_controller_;
 650   scoped_ptr<views::corewm::TooltipController> tooltip_controller_;
 651   scoped_ptr<DesktopBackgroundController> desktop_background_controller_;
 652   scoped_ptr<PowerButtonController> power_button_controller_;
 653   scoped_ptr<LockStateController> lock_state_controller_;
 654   scoped_ptr<MruWindowTracker> mru_window_tracker_;
 655   scoped_ptr< ::wm::UserActivityDetector> user_activity_detector_;
 656   scoped_ptr<VideoDetector> video_detector_;
 657   scoped_ptr<WindowCycleController> window_cycle_controller_;
 658   scoped_ptr<WindowSelectorController> window_selector_controller_;
 659   scoped_ptr<FocusCycler> focus_cycler_;
 660   scoped_ptr<DisplayController> display_controller_;
 661   scoped_ptr<HighContrastController> high_contrast_controller_;
 662   scoped_ptr<MagnificationController> magnification_controller_;
 663   scoped_ptr<PartialMagnificationController> partial_magnification_controller_;
 664   scoped_ptr<AutoclickController> autoclick_controller_;
 665   scoped_ptr<aura::client::FocusClient> focus_client_;
 666   aura::client::ActivationClient* activation_client_;
 667
 668   scoped_ptr<MouseCursorEventFilter> mouse_cursor_filter_;
 669   scoped_ptr<ScreenPositionController> screen_position_controller_;
 670   scoped_ptr<SystemModalContainerEventFilter> modality_filter_;
 671   scoped_ptr<EventClientImpl> event_client_;
 672   scoped_ptr<EventTransformationHandler> event_transformation_handler_;
 673
 674   // An event filter that pre-handles key events while the partial
 675   // screenshot UI or the keyboard overlay is active.
 676   scoped_ptr<OverlayEventFilter> overlay_filter_;
 677
 678   // An event filter for logging keyboard-related metrics.
 679   scoped_ptr<KeyboardUMAEventFilter> keyboard_metrics_filter_;
 680
 681   // An event filter which handles moving and resizing windows.
 682   scoped_ptr<ToplevelWindowEventHandler> toplevel_window_event_handler_;
 683
 684   // An event filter which handles system level gestures
 685   scoped_ptr<SystemGestureEventFilter> system_gesture_filter_;
 686
 687   // An event filter that pre-handles global accelerators.
 688   scoped_ptr<AcceleratorFilter> accelerator_filter_;
 689
 690   // An event filter that pre-handles all key events to send them to an IME.
 691   scoped_ptr< ::wm::InputMethodEventFilter> input_method_filter_;
 692
 693   scoped_ptr<DisplayManager> display_manager_;
 694   scoped_ptr<base::WeakPtrFactory<DisplayManager> >
 695       weak_display_manager_factory_;
 696
 697   scoped_ptr<LocaleNotificationController> locale_notification_controller_;
 698
 699   // The maximized window manager (if enabled).
 700   scoped_ptr<MaximizeModeWindowManager> maximize_mode_window_manager_;
 701
 702   scoped_ptr<AccelerometerController> accelerometer_controller_;
 703
 704 #if defined(OS_CHROMEOS)
 705   scoped_ptr<PowerEventObserver> power_event_observer_;
 706   scoped_ptr<ui::UserActivityPowerManagerNotifier> user_activity_notifier_;
 707   scoped_ptr<VideoActivityNotifier> video_activity_notifier_;
 708   scoped_ptr<StickyKeysController> sticky_keys_controller_;
 709   scoped_ptr<ResolutionNotificationController>
 710       resolution_notification_controller_;
 711   scoped_ptr<BluetoothNotificationController>
 712       bluetooth_notification_controller_;
 713   scoped_ptr<LogoutConfirmationController> logout_confirmation_controller_;
 714   scoped_ptr<LastWindowClosedLogoutReminder>
 715       last_window_closed_logout_reminder_;
 716   // Controls video output device state.
 717   scoped_ptr<ui::DisplayConfigurator> display_configurator_;
 718   scoped_ptr<DisplayConfiguratorAnimation> display_configurator_animation_;
 719   scoped_ptr<DisplayErrorObserver> display_error_observer_;
 720   scoped_ptr<ProjectingObserver> projecting_observer_;
 721
 722   // Listens for output changes and updates the display manager.
 723   scoped_ptr<DisplayChangeObserver> display_change_observer_;
 724
 725 #if defined(USE_X11)
 726   scoped_ptr<ui::EventHandler> magnifier_key_scroll_handler_;
 727   scoped_ptr<ui::EventHandler> speech_feedback_handler_;
 728   scoped_ptr<TouchTransformerController> touch_transformer_controller_;
 729 #endif  // defined(USE_X11)
 730 #endif  // defined(OS_CHROMEOS)
 731
 732   scoped_ptr<MaximizeModeController> maximize_mode_controller_;
 733
 734   // |native_cursor_manager_| is owned by |cursor_manager_|, but we keep a
 735   // pointer to vend to test code.
 736   AshNativeCursorManager* native_cursor_manager_;
 737
 738 // Cursor may be hidden on certain key events in ChromeOS, whereas we never hide
 739 // the cursor on Windows.
 740 #if defined(OS_CHROMEOS)
 741   CursorManager cursor_manager_;
 742 #else  // !defined(OS_CHROMEOS)
 743   ::wm::CursorManager cursor_manager_;
 744 #endif  // defined(OS_CHROMEOS)
 745
 746   ObserverList<ShellObserver> observers_;
 747
 748   // For testing only: simulate that a modal window is open
 749   bool simulate_modal_window_open_for_testing_;
 750
 751   bool is_touch_hud_projection_enabled_;
 752
 753   // Injected content::GPUDataManager support.
 754   scoped_ptr<GPUSupport> gpu_support_;
 755
 756   DISALLOW_COPY_AND_ASSIGN(Shell);
 757 };
 758
 759 }  // namespace ash
 760
 761 #endif  // ASH_SHELL_H_