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 #if defined(OS_CHROMEOS)
  46 namespace chromeos {
  47 class AccelerometerReader;
  48 }
  49 #endif
  50
  51 namespace gfx {
  52 class ImageSkia;
  53 class Point;
  54 class Rect;
  55 }
  56
  57 namespace ui {
  58 class DisplayConfigurator;
  59 class Layer;
  60 class UserActivityPowerManagerNotifier;
  61 }
  62 namespace views {
  63 class NonClientFrameView;
  64 class Widget;
  65 namespace corewm {
  66 class TooltipController;
  67 }
  68 }
  69
  70 namespace wm {
  71 class AcceleratorFilter;
  72 class CompoundEventFilter;
  73 class InputMethodEventFilter;
  74 class NestedAcceleratorController;
  75 class ShadowController;
  76 class VisibilityController;
  77 class UserActivityDetector;
  78 class WindowModalityController;
  79 }
  80
  81 namespace ash {
  82
  83 class AcceleratorController;
  84 class AccessibilityDelegate;
  85 class AppListController;
  86 class AshNativeCursorManager;
  87 class AutoclickController;
  88 class BluetoothNotificationController;
  89 class CaptureController;
  90 class DesktopBackgroundController;
  91 class DisplayChangeObserver;
  92 class DisplayConfiguratorAnimation;
  93 class DisplayController;
  94 class DisplayErrorObserver;
  95 class DisplayManager;
  96 class DragDropController;
  97 class EventClientImpl;
  98 class EventRewriterEventFilter;
  99 class EventTransformationHandler;
 100 class FirstRunHelper;
 101 class FocusCycler;
 102 class GPUSupport;
 103 class HighContrastController;
 104 class KeyboardUMAEventFilter;
 105 class LastWindowClosedLogoutReminder;
 106 class LocaleNotificationController;
 107 class LockStateController;
 108 class LogoutConfirmationController;
 109 class MagnificationController;
 110 class MaximizeModeController;
 111 class MaximizeModeWindowManager;
 112 class MediaDelegate;
 113 class MouseCursorEventFilter;
 114 class MruWindowTracker;
 115 class NewWindowDelegate;
 116 class OverlayEventFilter;
 117 class PartialMagnificationController;
 118 class PowerButtonController;
 119 class PowerEventObserver;
 120 class ProjectingObserver;
 121 class ResizeShadowController;
 122 class ResolutionNotificationController;
 123 class RootWindowController;
 124 class ScopedTargetRootWindow;
 125 class ScreenAsh;
 126 class ScreenOrientationDelegate;
 127 class ScreenPositionController;
 128 class SessionStateDelegate;
 129 class Shelf;
 130 class ShelfDelegate;
 131 class ShelfItemDelegateManager;
 132 class ShelfModel;
 133 class ShelfWindowWatcher;
 134 class ShellDelegate;
 135 struct ShellInitParams;
 136 class ShellObserver;
 137 class SlowAnimationEventFilter;
 138 class StatusAreaWidget;
 139 class StickyKeysController;
 140 class SystemGestureEventFilter;
 141 class SystemModalContainerEventFilter;
 142 class SystemTray;
 143 class SystemTrayDelegate;
 144 class SystemTrayNotifier;
 145 class ToplevelWindowEventHandler;
 146 class TouchTransformerController;
 147 class TouchObserverHUD;
 148 class UserActivityDetector;
 149 class UserWallpaperDelegate;
 150 class VirtualKeyboardController;
 151 class VideoActivityNotifier;
 152 class VideoDetector;
 153 class WebNotificationTray;
 154 class WindowCycleController;
 155 class WindowPositioner;
 156 class WindowSelectorController;
 157
 158 namespace shell {
 159 class WindowWatcher;
 160 }
 161
 162 namespace test {
 163 class ShellTestApi;
 164 }
 165
 166 // Shell is a singleton object that presents the Shell API and implements the
 167 // RootWindow's delegate interface.
 168 //
 169 // Upon creation, the Shell sets itself as the RootWindow's delegate, which
 170 // takes ownership of the Shell.
 171 class ASH_EXPORT Shell : public SystemModalContainerEventFilterDelegate,
 172                          public ui::EventTarget,
 173                          public aura::client::ActivationChangeObserver {
 174  public:
 175   typedef std::vector<RootWindowController*> RootWindowControllerList;
 176
 177   enum Direction {
 178     FORWARD,
 179     BACKWARD
 180   };
 181
 182   // A shell must be explicitly created so that it can call |Init()| with the
 183   // delegate set. |delegate| can be NULL (if not required for initialization).
 184   // Takes ownership of |delegate|.
 185   static Shell* CreateInstance(const ShellInitParams& init_params);
 186
 187   // Should never be called before |CreateInstance()|.
 188   static Shell* GetInstance();
 189
 190   // Returns true if the ash shell has been instantiated.
 191   static bool HasInstance();
 192
 193   static void DeleteInstance();
 194
 195   // Returns the root window controller for the primary root window.
 196   // TODO(oshima): move this to |RootWindowController|
 197   static RootWindowController* GetPrimaryRootWindowController();
 198
 199   // Returns all root window controllers.
 200   // TODO(oshima): move this to |RootWindowController|
 201   static RootWindowControllerList GetAllRootWindowControllers();
 202
 203   // Returns the primary root Window. The primary root Window is the one that
 204   // has a launcher.
 205   static aura::Window* GetPrimaryRootWindow();
 206
 207   // Returns a root Window when used as a target when creating a new window.
 208   // The root window of the active window is used in most cases, but can
 209   // be overridden by using ScopedTargetRootWindow().
 210   // If you want to get the root Window of the active window, just use
 211   // |wm::GetActiveWindow()->GetRootWindow()|.
 212   static aura::Window* GetTargetRootWindow();
 213
 214   // Returns the global Screen object that's always active in ash.
 215   static gfx::Screen* GetScreen();
 216
 217   // Returns all root windows.
 218   static aura::Window::Windows GetAllRootWindows();
 219
 220   static aura::Window* GetContainer(aura::Window* root_window,
 221                                     int container_id);
 222   static const aura::Window* GetContainer(const aura::Window* root_window,
 223                                           int container_id);
 224
 225   // Returns the list of containers that match |container_id| in
 226   // all root windows. If |priority_root| is given, the container
 227   // in the |priority_root| will be inserted at the top of the list.
 228   static std::vector<aura::Window*> GetContainersFromAllRootWindows(
 229       int container_id,
 230       aura::Window* priority_root);
 231
 232   void set_target_root_window(aura::Window* target_root_window) {
 233     target_root_window_ = target_root_window;
 234   }
 235
 236   // Shows the context menu for the background and launcher at
 237   // |location_in_screen| (in screen coordinates).
 238   void ShowContextMenu(const gfx::Point& location_in_screen,
 239                        ui::MenuSourceType source_type);
 240
 241   // Shows the app list. |window| specifies in which display the app
 242   // list should be shown. If this is NULL, the active root window
 243   // will be used.
 244   void ShowAppList(aura::Window* anchor);
 245
 246   // Dismisses the app list.
 247   void DismissAppList();
 248
 249   // Shows the app list if it's not visible. Dismisses it otherwise.
 250   void ToggleAppList(aura::Window* anchor);
 251
 252   // Returns app list target visibility.
 253   bool GetAppListTargetVisibility() const;
 254
 255   // Returns app list window or NULL if it is not visible.
 256   aura::Window* GetAppListWindow();
 257
 258   // Returns app list view or NULL if it is not visible.
 259   app_list::AppListView* GetAppListView();
 260
 261   // Returns true if a system-modal dialog window is currently open.
 262   bool IsSystemModalWindowOpen() const;
 263
 264   // For testing only: set simulation that a modal window is open
 265   void SimulateModalWindowOpenForTesting(bool modal_window_open) {
 266     simulate_modal_window_open_for_testing_ = modal_window_open;
 267   }
 268
 269   // Creates a default views::NonClientFrameView for use by windows in the
 270   // Ash environment.
 271   views::NonClientFrameView* CreateDefaultNonClientFrameView(
 272       views::Widget* widget);
 273
 274   // Rotates focus through containers that can receive focus.
 275   void RotateFocus(Direction direction);
 276
 277   // Sets the work area insets of the display that contains |window|,
 278   // this notifies observers too.
 279   // TODO(sky): this no longer really replicates what happens and is unreliable.
 280   // Remove this.
 281   void SetDisplayWorkAreaInsets(aura::Window* window,
 282                                 const gfx::Insets& insets);
 283
 284   // Called when the user logs in.
 285   void OnLoginStateChanged(user::LoginStatus status);
 286
 287   // Called after the logged-in user's profile is ready.
 288   void OnLoginUserProfilePrepared();
 289
 290   // Called when the login status changes.
 291   // TODO(oshima): Investigate if we can merge this and |OnLoginStateChanged|.
 292   void UpdateAfterLoginStatusChange(user::LoginStatus status);
 293
 294   // Called when the application is exiting.
 295   void OnAppTerminating();
 296
 297   // Called when the screen is locked (after the lock window is visible) or
 298   // unlocked.
 299   void OnLockStateChanged(bool locked);
 300
 301   // Called when a casting session is started or stopped.
 302   void OnCastingSessionStartedOrStopped(bool started);
 303
 304   // Called when the overview mode is about to be started (before the windows
 305   // get re-arranged).
 306   void OnOverviewModeStarting();
 307
 308   // Called before the overview mode is ending (before the windows get arranged
 309   // to their final position).
 310   void OnOverviewModeEnding();
 311
 312   // Called after maximize mode has started, windows might still animate though.
 313   void OnMaximizeModeStarted();
 314
 315   // Called after maximize mode has ended, windows might still be returning to
 316   // their original position.
 317   void OnMaximizeModeEnded();
 318
 319   // Called when a root window is created.
 320   void OnRootWindowAdded(aura::Window* root_window);
 321
 322   // Initializes |shelf_|.  Does nothing if it's already initialized.
 323   void CreateShelf();
 324
 325   // Called when the shelf is created for |root_window|.
 326   void OnShelfCreatedForRootWindow(aura::Window* root_window);
 327
 328   // Creates a virtual keyboard. Deletes the old virtual keyboard if it already
 329   // exists.
 330   void CreateKeyboard();
 331
 332   // Deactivates the virtual keyboard.
 333   void DeactivateKeyboard();
 334
 335   // Show shelf view if it was created hidden (before session has started).
 336   void ShowShelf();
 337
 338   // Adds/removes observer.
 339   void AddShellObserver(ShellObserver* observer);
 340   void RemoveShellObserver(ShellObserver* observer);
 341
 342 #if defined(OS_CHROMEOS)
 343   // Test if MaximizeModeWindowManager is not enabled, and if
 344   // MaximizeModeController is not currently setting a display rotation. Or if
 345   // the |resolution_notification_controller_| is not showing its confirmation
 346   // dialog. If true then changes to display settings can be saved.
 347   bool ShouldSaveDisplaySettings();
 348 #endif
 349
 350   AcceleratorController* accelerator_controller() {
 351     return accelerator_controller_.get();
 352   }
 353
 354   DisplayManager* display_manager() { return display_manager_.get(); }
 355   ::wm::InputMethodEventFilter* input_method_filter() {
 356     return input_method_filter_.get();
 357   }
 358   ::wm::CompoundEventFilter* env_filter() {
 359     return env_filter_.get();
 360   }
 361   views::corewm::TooltipController* tooltip_controller() {
 362     return tooltip_controller_.get();
 363   }
 364   OverlayEventFilter* overlay_filter() { return overlay_filter_.get(); }
 365   DesktopBackgroundController* desktop_background_controller() {
 366     return desktop_background_controller_.get();
 367   }
 368   PowerButtonController* power_button_controller() {
 369     return power_button_controller_.get();
 370   }
 371   LockStateController* lock_state_controller() {
 372     return lock_state_controller_.get();
 373   }
 374   MruWindowTracker* mru_window_tracker() {
 375     return mru_window_tracker_.get();
 376   }
 377   VideoDetector* video_detector() {
 378     return video_detector_.get();
 379   }
 380   WindowCycleController* window_cycle_controller() {
 381     return window_cycle_controller_.get();
 382   }
 383   WindowSelectorController* window_selector_controller() {
 384     return window_selector_controller_.get();
 385   }
 386   FocusCycler* focus_cycler() { return focus_cycler_.get(); }
 387   DisplayController* display_controller() {
 388     return display_controller_.get();
 389   }
 390 #if defined(OS_CHROMEOS)
 391   TouchTransformerController* touch_transformer_controller() {
 392     return touch_transformer_controller_.get();
 393   }
 394 #endif  // defined(OS_CHROMEOS)
 395   MouseCursorEventFilter* mouse_cursor_filter() {
 396     return mouse_cursor_filter_.get();
 397   }
 398   EventTransformationHandler* event_transformation_handler() {
 399     return event_transformation_handler_.get();
 400   }
 401   ::wm::CursorManager* cursor_manager() { return &cursor_manager_; }
 402
 403   ShellDelegate* delegate() { return delegate_.get(); }
 404
 405   UserWallpaperDelegate* user_wallpaper_delegate() {
 406     return user_wallpaper_delegate_.get();
 407   }
 408
 409   SessionStateDelegate* session_state_delegate() {
 410     return session_state_delegate_.get();
 411   }
 412
 413   AccessibilityDelegate* accessibility_delegate() {
 414     return accessibility_delegate_.get();
 415   }
 416
 417   NewWindowDelegate* new_window_delegate() {
 418     return new_window_delegate_.get();
 419   }
 420
 421   MediaDelegate* media_delegate() {
 422     return media_delegate_.get();
 423   }
 424
 425   HighContrastController* high_contrast_controller() {
 426     return high_contrast_controller_.get();
 427   }
 428
 429   MagnificationController* magnification_controller() {
 430     return magnification_controller_.get();
 431   }
 432
 433   PartialMagnificationController* partial_magnification_controller() {
 434     return partial_magnification_controller_.get();
 435   }
 436
 437   AutoclickController* autoclick_controller() {
 438     return autoclick_controller_.get();
 439   }
 440
 441   aura::client::ActivationClient* activation_client() {
 442     return activation_client_;
 443   }
 444
 445   ShelfItemDelegateManager* shelf_item_delegate_manager() {
 446     return shelf_item_delegate_manager_.get();
 447   }
 448
 449   // Force the shelf to query for it's current visibility state.
 450   void UpdateShelfVisibility();
 451
 452   // TODO(oshima): Define an interface to access shelf/launcher
 453   // state, or just use Launcher.
 454
 455   // Sets/gets the shelf auto-hide behavior on |root_window|.
 456   void SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
 457                                 aura::Window* root_window);
 458   ShelfAutoHideBehavior GetShelfAutoHideBehavior(
 459       aura::Window* root_window) const;
 460
 461   // Sets/gets shelf's alignment on |root_window|.
 462   void SetShelfAlignment(ShelfAlignment alignment,
 463                          aura::Window* root_window);
 464   ShelfAlignment GetShelfAlignment(const aura::Window* root_window);
 465
 466   // Dims or undims the screen.
 467   void SetDimming(bool should_dim);
 468
 469   // Notifies |observers_| when entering or exiting fullscreen mode in
 470   // |root_window|.
 471   void NotifyFullscreenStateChange(bool is_fullscreen,
 472                                    aura::Window* root_window);
 473
 474   // Creates a modal background (a partially-opaque fullscreen window)
 475   // on all displays for |window|.
 476   void CreateModalBackground(aura::Window* window);
 477
 478   // Called when a modal window is removed. It will activate
 479   // another modal window if any, or remove modal screens
 480   // on all displays.
 481   void OnModalWindowRemoved(aura::Window* removed);
 482
 483   // Returns WebNotificationTray on the primary root window.
 484   WebNotificationTray* GetWebNotificationTray();
 485
 486   // Does the primary display have status area?
 487   bool HasPrimaryStatusArea();
 488
 489   // Returns the system tray on primary display.
 490   SystemTray* GetPrimarySystemTray();
 491
 492   SystemTrayDelegate* system_tray_delegate() {
 493     return system_tray_delegate_.get();
 494   }
 495
 496   SystemTrayNotifier* system_tray_notifier() {
 497     return system_tray_notifier_.get();
 498   }
 499
 500   static void set_initially_hide_cursor(bool hide) {
 501     initially_hide_cursor_ = hide;
 502   }
 503
 504   ResizeShadowController* resize_shadow_controller() {
 505     return resize_shadow_controller_.get();
 506   }
 507
 508   // Made available for tests.
 509   ::wm::ShadowController* shadow_controller() {
 510     return shadow_controller_.get();
 511   }
 512
 513   // Starts the animation that occurs on first login.
 514   void DoInitialWorkspaceAnimation();
 515
 516   MaximizeModeController* maximize_mode_controller() {
 517     return maximize_mode_controller_.get();
 518   }
 519
 520 #if defined(OS_CHROMEOS)
 521   chromeos::AccelerometerReader* accelerometer_reader() {
 522     return accelerometer_reader_.get();
 523   }
 524
 525   // TODO(oshima): Move these objects to DisplayController.
 526   ui::DisplayConfigurator* display_configurator() {
 527     return display_configurator_.get();
 528   }
 529   DisplayConfiguratorAnimation* display_configurator_animation() {
 530     return display_configurator_animation_.get();
 531   }
 532   DisplayErrorObserver* display_error_observer() {
 533     return display_error_observer_.get();
 534   }
 535
 536   ResolutionNotificationController* resolution_notification_controller() {
 537     return resolution_notification_controller_.get();
 538   }
 539
 540   LogoutConfirmationController* logout_confirmation_controller() {
 541     return logout_confirmation_controller_.get();
 542   }
 543
 544   ScreenOrientationDelegate* screen_orientation_delegate() {
 545     return screen_orientation_delegate_.get();
 546   }
 547
 548   VirtualKeyboardController* virtual_keyboard_controller() {
 549     return virtual_keyboard_controller_.get();
 550   }
 551 #endif  // defined(OS_CHROMEOS)
 552
 553   ShelfModel* shelf_model() {
 554     return shelf_model_.get();
 555   }
 556
 557   WindowPositioner* window_positioner() {
 558     return window_positioner_.get();
 559   }
 560
 561   // Returns the launcher delegate, creating if necesary.
 562   ShelfDelegate* GetShelfDelegate();
 563
 564   UserMetricsRecorder* metrics() {
 565     return user_metrics_recorder_.get();
 566   }
 567
 568   void SetTouchHudProjectionEnabled(bool enabled);
 569
 570   bool is_touch_hud_projection_enabled() const {
 571     return is_touch_hud_projection_enabled_;
 572   }
 573
 574 #if defined(OS_CHROMEOS)
 575   // Creates instance of FirstRunHelper. Caller is responsible for deleting
 576   // returned object.
 577   ash::FirstRunHelper* CreateFirstRunHelper();
 578
 579   // Toggles cursor compositing on/off. Native cursor is disabled when cursor
 580   // compositing is enabled, and vice versa.
 581   void SetCursorCompositingEnabled(bool enabled);
 582
 583   StickyKeysController* sticky_keys_controller() {
 584     return sticky_keys_controller_.get();
 585   }
 586 #endif  // defined(OS_CHROMEOS)
 587
 588   GPUSupport* gpu_support() { return gpu_support_.get(); }
 589
 590  private:
 591   FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, TestCursor);
 592   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, MouseEventCursors);
 593   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, TransformActivate);
 594   friend class RootWindowController;
 595   friend class ScopedTargetRootWindow;
 596   friend class test::ShellTestApi;
 597   friend class shell::WindowWatcher;
 598
 599   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 600
 601   // Takes ownership of |delegate|.
 602   explicit Shell(ShellDelegate* delegate);
 603   ~Shell() override;
 604
 605   void Init(const ShellInitParams& init_params);
 606
 607   // Initializes virtual keyboard controller.
 608   void InitKeyboard();
 609
 610   // Initializes the root window so that it can host browser windows.
 611   void InitRootWindow(aura::Window* root_window);
 612
 613   // ash::SystemModalContainerEventFilterDelegate overrides:
 614   bool CanWindowReceiveEvents(aura::Window* window) override;
 615
 616   // Overridden from ui::EventTarget:
 617   bool CanAcceptEvent(const ui::Event& event) override;
 618   EventTarget* GetParentTarget() override;
 619   scoped_ptr<ui::EventTargetIterator> GetChildIterator() const override;
 620   ui::EventTargeter* GetEventTargeter() override;
 621   void OnEvent(ui::Event* event) override;
 622
 623   // Overridden from aura::client::ActivationChangeObserver:
 624   void OnWindowActivated(aura::Window* gained_active,
 625                          aura::Window* lost_active) override;
 626
 627   static Shell* instance_;
 628
 629   // If set before the Shell is initialized, the mouse cursor will be hidden
 630   // when the screen is initially created.
 631   static bool initially_hide_cursor_;
 632
 633   // When no explicit target display/RootWindow is given, new windows are
 634   // created on |scoped_target_root_window_| , unless NULL in
 635   // which case they are created on |target_root_window_|.
 636   // |target_root_window_| never becomes NULL during the session.
 637   aura::Window* target_root_window_;
 638   aura::Window* scoped_target_root_window_;
 639
 640   // The CompoundEventFilter owned by aura::Env object.
 641   scoped_ptr< ::wm::CompoundEventFilter> env_filter_;
 642
 643   std::vector<WindowAndBoundsPair> to_restore_;
 644
 645   scoped_ptr<UserMetricsRecorder> user_metrics_recorder_;
 646   scoped_ptr< ::wm::NestedAcceleratorController> nested_accelerator_controller_;
 647   scoped_ptr<AcceleratorController> accelerator_controller_;
 648   scoped_ptr<ShellDelegate> delegate_;
 649   scoped_ptr<SystemTrayDelegate> system_tray_delegate_;
 650   scoped_ptr<SystemTrayNotifier> system_tray_notifier_;
 651   scoped_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
 652   scoped_ptr<SessionStateDelegate> session_state_delegate_;
 653   scoped_ptr<AccessibilityDelegate> accessibility_delegate_;
 654   scoped_ptr<NewWindowDelegate> new_window_delegate_;
 655   scoped_ptr<MediaDelegate> media_delegate_;
 656   scoped_ptr<ShelfDelegate> shelf_delegate_;
 657   scoped_ptr<ShelfItemDelegateManager> shelf_item_delegate_manager_;
 658   scoped_ptr<ShelfWindowWatcher> shelf_window_watcher_;
 659
 660   scoped_ptr<ShelfModel> shelf_model_;
 661   scoped_ptr<WindowPositioner> window_positioner_;
 662
 663   scoped_ptr<AppListController> app_list_controller_;
 664
 665   scoped_ptr<DragDropController> drag_drop_controller_;
 666   scoped_ptr<ResizeShadowController> resize_shadow_controller_;
 667   scoped_ptr< ::wm::ShadowController> shadow_controller_;
 668   scoped_ptr< ::wm::VisibilityController> visibility_controller_;
 669   scoped_ptr< ::wm::WindowModalityController> window_modality_controller_;
 670   scoped_ptr<views::corewm::TooltipController> tooltip_controller_;
 671   scoped_ptr<DesktopBackgroundController> desktop_background_controller_;
 672   scoped_ptr<PowerButtonController> power_button_controller_;
 673   scoped_ptr<LockStateController> lock_state_controller_;
 674   scoped_ptr<MruWindowTracker> mru_window_tracker_;
 675   scoped_ptr< ::wm::UserActivityDetector> user_activity_detector_;
 676   scoped_ptr<VideoDetector> video_detector_;
 677   scoped_ptr<WindowCycleController> window_cycle_controller_;
 678   scoped_ptr<WindowSelectorController> window_selector_controller_;
 679   scoped_ptr<FocusCycler> focus_cycler_;
 680   scoped_ptr<DisplayController> display_controller_;
 681   scoped_ptr<HighContrastController> high_contrast_controller_;
 682   scoped_ptr<MagnificationController> magnification_controller_;
 683   scoped_ptr<PartialMagnificationController> partial_magnification_controller_;
 684   scoped_ptr<AutoclickController> autoclick_controller_;
 685   scoped_ptr<aura::client::FocusClient> focus_client_;
 686   aura::client::ActivationClient* activation_client_;
 687
 688   scoped_ptr<MouseCursorEventFilter> mouse_cursor_filter_;
 689   scoped_ptr<ScreenPositionController> screen_position_controller_;
 690   scoped_ptr<SystemModalContainerEventFilter> modality_filter_;
 691   scoped_ptr<EventClientImpl> event_client_;
 692   scoped_ptr<EventTransformationHandler> event_transformation_handler_;
 693
 694   // An event filter that pre-handles key events while the partial
 695   // screenshot UI or the keyboard overlay is active.
 696   scoped_ptr<OverlayEventFilter> overlay_filter_;
 697
 698   // An event filter for logging keyboard-related metrics.
 699   scoped_ptr<KeyboardUMAEventFilter> keyboard_metrics_filter_;
 700
 701   // An event filter which handles moving and resizing windows.
 702   scoped_ptr<ToplevelWindowEventHandler> toplevel_window_event_handler_;
 703
 704   // An event filter which handles system level gestures
 705   scoped_ptr<SystemGestureEventFilter> system_gesture_filter_;
 706
 707   // An event filter that pre-handles global accelerators.
 708   scoped_ptr< ::wm::AcceleratorFilter> accelerator_filter_;
 709
 710   // An event filter that pre-handles all key events to send them to an IME.
 711   scoped_ptr< ::wm::InputMethodEventFilter> input_method_filter_;
 712
 713   scoped_ptr<DisplayManager> display_manager_;
 714
 715   scoped_ptr<LocaleNotificationController> locale_notification_controller_;
 716
 717 #if defined(OS_CHROMEOS)
 718   scoped_ptr<chromeos::AccelerometerReader> accelerometer_reader_;
 719   scoped_ptr<PowerEventObserver> power_event_observer_;
 720   scoped_ptr<ui::UserActivityPowerManagerNotifier> user_activity_notifier_;
 721   scoped_ptr<VideoActivityNotifier> video_activity_notifier_;
 722   scoped_ptr<StickyKeysController> sticky_keys_controller_;
 723   scoped_ptr<ResolutionNotificationController>
 724       resolution_notification_controller_;
 725   scoped_ptr<BluetoothNotificationController>
 726       bluetooth_notification_controller_;
 727   scoped_ptr<LogoutConfirmationController> logout_confirmation_controller_;
 728   scoped_ptr<LastWindowClosedLogoutReminder>
 729       last_window_closed_logout_reminder_;
 730   scoped_ptr<VirtualKeyboardController> virtual_keyboard_controller_;
 731   // Controls video output device state.
 732   scoped_ptr<ui::DisplayConfigurator> display_configurator_;
 733   scoped_ptr<DisplayConfiguratorAnimation> display_configurator_animation_;
 734   scoped_ptr<DisplayErrorObserver> display_error_observer_;
 735   scoped_ptr<ProjectingObserver> projecting_observer_;
 736
 737   // Listens for output changes and updates the display manager.
 738   scoped_ptr<DisplayChangeObserver> display_change_observer_;
 739
 740   // Implements content::ScreenOrientationDelegate for ChromeOS
 741   scoped_ptr<ScreenOrientationDelegate> screen_orientation_delegate_;
 742
 743   scoped_ptr<TouchTransformerController> touch_transformer_controller_;
 744
 745   scoped_ptr<ui::EventHandler> magnifier_key_scroll_handler_;
 746   scoped_ptr<ui::EventHandler> speech_feedback_handler_;
 747 #endif  // defined(OS_CHROMEOS)
 748
 749   scoped_ptr<MaximizeModeController> maximize_mode_controller_;
 750
 751   // |native_cursor_manager_| is owned by |cursor_manager_|, but we keep a
 752   // pointer to vend to test code.
 753   AshNativeCursorManager* native_cursor_manager_;
 754
 755 // Cursor may be hidden on certain key events in ChromeOS, whereas we never hide
 756 // the cursor on Windows.
 757 #if defined(OS_CHROMEOS)
 758   CursorManager cursor_manager_;
 759 #else  // !defined(OS_CHROMEOS)
 760   ::wm::CursorManager cursor_manager_;
 761 #endif  // defined(OS_CHROMEOS)
 762
 763   ObserverList<ShellObserver> observers_;
 764
 765   // For testing only: simulate that a modal window is open
 766   bool simulate_modal_window_open_for_testing_;
 767
 768   bool is_touch_hud_projection_enabled_;
 769
 770   // Injected content::GPUDataManager support.
 771   scoped_ptr<GPUSupport> gpu_support_;
 772
 773   DISALLOW_COPY_AND_ASSIGN(Shell);
 774 };
 775
 776 }  // namespace ash
 777
 778 #endif  // ASH_SHELL_H_