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