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