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 #include "ash/shell.h"
6
7 #include <algorithm>
8 #include <string>
9
10 #include "ash/accelerators/accelerator_controller.h"
11 #include "ash/accelerators/accelerator_delegate.h"
12 #include "ash/accelerators/focus_manager_factory.h"
13 #include "ash/accelerators/nested_accelerator_delegate.h"
14 #include "ash/accelerometer/accelerometer_controller.h"
15 #include "ash/ash_switches.h"
16 #include "ash/autoclick/autoclick_controller.h"
17 #include "ash/desktop_background/desktop_background_controller.h"
18 #include "ash/desktop_background/desktop_background_view.h"
19 #include "ash/desktop_background/user_wallpaper_delegate.h"
20 #include "ash/display/cursor_window_controller.h"
21 #include "ash/display/display_controller.h"
22 #include "ash/display/display_manager.h"
23 #include "ash/display/event_transformation_handler.h"
24 #include "ash/display/mouse_cursor_event_filter.h"
25 #include "ash/display/screen_position_controller.h"
26 #include "ash/display/virtual_keyboard_window_controller.h"
27 #include "ash/drag_drop/drag_drop_controller.h"
28 #include "ash/first_run/first_run_helper_impl.h"
29 #include "ash/focus_cycler.h"
30 #include "ash/frame/custom_frame_view_ash.h"
31 #include "ash/gpu_support.h"
32 #include "ash/high_contrast/high_contrast_controller.h"
33 #include "ash/host/ash_window_tree_host_init_params.h"
34 #include "ash/keyboard_uma_event_filter.h"
35 #include "ash/magnifier/magnification_controller.h"
36 #include "ash/magnifier/partial_magnification_controller.h"
37 #include "ash/media_delegate.h"
38 #include "ash/new_window_delegate.h"
39 #include "ash/root_window_controller.h"
40 #include "ash/session/session_state_delegate.h"
41 #include "ash/shelf/app_list_shelf_item_delegate.h"
42 #include "ash/shelf/shelf_delegate.h"
43 #include "ash/shelf/shelf_item_delegate.h"
44 #include "ash/shelf/shelf_item_delegate_manager.h"
45 #include "ash/shelf/shelf_layout_manager.h"
46 #include "ash/shelf/shelf_model.h"
47 #include "ash/shelf/shelf_widget.h"
48 #include "ash/shelf/shelf_window_watcher.h"
49 #include "ash/shell_delegate.h"
50 #include "ash/shell_factory.h"
51 #include "ash/shell_init_params.h"
52 #include "ash/shell_window_ids.h"
53 #include "ash/system/locale/locale_notification_controller.h"
54 #include "ash/system/status_area_widget.h"
55 #include "ash/system/tray/system_tray_delegate.h"
56 #include "ash/system/tray/system_tray_notifier.h"
57 #include "ash/wm/app_list_controller.h"
58 #include "ash/wm/ash_focus_rules.h"
59 #include "ash/wm/ash_native_cursor_manager.h"
60 #include "ash/wm/coordinate_conversion.h"
61 #include "ash/wm/event_client_impl.h"
62 #include "ash/wm/lock_state_controller.h"
63 #include "ash/wm/maximize_mode/maximize_mode_controller.h"
64 #include "ash/wm/maximize_mode/maximize_mode_window_manager.h"
65 #include "ash/wm/mru_window_tracker.h"
66 #include "ash/wm/overlay_event_filter.h"
67 #include "ash/wm/overview/window_selector_controller.h"
68 #include "ash/wm/power_button_controller.h"
69 #include "ash/wm/resize_shadow_controller.h"
70 #include "ash/wm/root_window_layout_manager.h"
71 #include "ash/wm/screen_dimmer.h"
72 #include "ash/wm/system_gesture_event_filter.h"
73 #include "ash/wm/system_modal_container_event_filter.h"
74 #include "ash/wm/system_modal_container_layout_manager.h"
75 #include "ash/wm/toplevel_window_event_handler.h"
76 #include "ash/wm/video_detector.h"
77 #include "ash/wm/window_animations.h"
78 #include "ash/wm/window_cycle_controller.h"
79 #include "ash/wm/window_positioner.h"
80 #include "ash/wm/window_properties.h"
81 #include "ash/wm/window_util.h"
82 #include "ash/wm/workspace_controller.h"
83 #include "base/bind.h"
84 #include "base/debug/trace_event.h"
85 #include "ui/aura/client/aura_constants.h"
86 #include "ui/aura/env.h"
87 #include "ui/aura/layout_manager.h"
88 #include "ui/aura/window.h"
89 #include "ui/aura/window_event_dispatcher.h"
90 #include "ui/base/ui_base_switches.h"
91 #include "ui/compositor/layer.h"
92 #include "ui/compositor/layer_animator.h"
93 #include "ui/events/event_target_iterator.h"
94 #include "ui/gfx/display.h"
95 #include "ui/gfx/image/image_skia.h"
96 #include "ui/gfx/screen.h"
97 #include "ui/gfx/size.h"
98 #include "ui/keyboard/keyboard.h"
99 #include "ui/keyboard/keyboard_controller.h"
100 #include "ui/keyboard/keyboard_switches.h"
101 #include "ui/keyboard/keyboard_util.h"
102 #include "ui/message_center/message_center.h"
103 #include "ui/views/corewm/tooltip_aura.h"
104 #include "ui/views/corewm/tooltip_controller.h"
105 #include "ui/views/focus/focus_manager_factory.h"
106 #include "ui/views/widget/native_widget_aura.h"
107 #include "ui/views/widget/widget.h"
108 #include "ui/wm/core/accelerator_filter.h"
109 #include "ui/wm/core/compound_event_filter.h"
110 #include "ui/wm/core/focus_controller.h"
111 #include "ui/wm/core/input_method_event_filter.h"
112 #include "ui/wm/core/nested_accelerator_controller.h"
113 #include "ui/wm/core/shadow_controller.h"
114 #include "ui/wm/core/user_activity_detector.h"
115 #include "ui/wm/core/visibility_controller.h"
116 #include "ui/wm/core/window_modality_controller.h"
117
118 #if defined(OS_CHROMEOS)
119 #if defined(USE_X11)
120 #include "ash/accelerators/magnifier_key_scroller.h"
121 #include "ash/accelerators/spoken_feedback_toggler.h"
122 #include "ash/touch/touch_transformer_controller.h"
123 #include "ui/gfx/x/x11_types.h"
124 #endif // defined(USE_X11)
125 #include "ash/ash_constants.h"
126 #include "ash/display/display_change_observer_chromeos.h"
127 #include "ash/display/display_configurator_animation.h"
128 #include "ash/display/display_error_observer_chromeos.h"
129 #include "ash/display/projecting_observer_chromeos.h"
130 #include "ash/display/resolution_notification_controller.h"
131 #include "ash/sticky_keys/sticky_keys_controller.h"
132 #include "ash/system/chromeos/bluetooth/bluetooth_notification_controller.h"
133 #include "ash/system/chromeos/brightness/brightness_controller_chromeos.h"
134 #include "ash/system/chromeos/power/power_event_observer.h"
135 #include "ash/system/chromeos/power/power_status.h"
136 #include "ash/system/chromeos/power/video_activity_notifier.h"
137 #include "ash/system/chromeos/session/last_window_closed_logout_reminder.h"
138 #include "ash/system/chromeos/session/logout_confirmation_controller.h"
139 #include "base/bind_helpers.h"
140 #include "base/sys_info.h"
141 #include "ui/chromeos/user_activity_power_manager_notifier.h"
142 #include "ui/display/chromeos/display_configurator.h"
143 #endif // defined(OS_CHROMEOS)
144
145 namespace ash {
146
147 namespace {
148
149 using aura::Window;
150 using views::Widget;
151
152 // A Corewm VisibilityController subclass that calls the Ash animation routine
153 // so we can pick up our extended animations. See ash/wm/window_animations.h.
154 class AshVisibilityController : public ::wm::VisibilityController {
155 public:
AshVisibilityController()156 AshVisibilityController() {}
~AshVisibilityController()157 virtual ~AshVisibilityController() {}
158
159 private:
160 // Overridden from ::wm::VisibilityController:
CallAnimateOnChildWindowVisibilityChanged(aura::Window * window,bool visible)161 virtual bool CallAnimateOnChildWindowVisibilityChanged(
162 aura::Window* window,
163 bool visible) OVERRIDE {
164 return AnimateOnChildWindowVisibilityChanged(window, visible);
165 }
166
167 DISALLOW_COPY_AND_ASSIGN(AshVisibilityController);
168 };
169
ShellInitParamsToAshWindowTreeHostInitParams(const ShellInitParams & shell_init_params)170 AshWindowTreeHostInitParams ShellInitParamsToAshWindowTreeHostInitParams(
171 const ShellInitParams& shell_init_params) {
172 AshWindowTreeHostInitParams ash_init_params;
173 #if defined(OS_WIN)
174 ash_init_params.remote_hwnd = shell_init_params.remote_hwnd;
175 #endif
176 return ash_init_params;
177 }
178
179 } // namespace
180
181 // static
182 Shell* Shell::instance_ = NULL;
183 // static
184 bool Shell::initially_hide_cursor_ = false;
185
186 ////////////////////////////////////////////////////////////////////////////////
187 // Shell, public:
188
189 // static
CreateInstance(const ShellInitParams & init_params)190 Shell* Shell::CreateInstance(const ShellInitParams& init_params) {
191 CHECK(!instance_);
192 instance_ = new Shell(init_params.delegate);
193 instance_->Init(init_params);
194 return instance_;
195 }
196
197 // static
GetInstance()198 Shell* Shell::GetInstance() {
199 DCHECK(instance_);
200 return instance_;
201 }
202
203 // static
HasInstance()204 bool Shell::HasInstance() {
205 return !!instance_;
206 }
207
208 // static
DeleteInstance()209 void Shell::DeleteInstance() {
210 delete instance_;
211 instance_ = NULL;
212 }
213
214 // static
GetPrimaryRootWindowController()215 RootWindowController* Shell::GetPrimaryRootWindowController() {
216 return GetRootWindowController(GetPrimaryRootWindow());
217 }
218
219 // static
GetAllRootWindowControllers()220 Shell::RootWindowControllerList Shell::GetAllRootWindowControllers() {
221 return Shell::GetInstance()->display_controller()->
222 GetAllRootWindowControllers();
223 }
224
225 // static
GetPrimaryRootWindow()226 aura::Window* Shell::GetPrimaryRootWindow() {
227 return GetInstance()->display_controller()->GetPrimaryRootWindow();
228 }
229
230 // static
GetTargetRootWindow()231 aura::Window* Shell::GetTargetRootWindow() {
232 Shell* shell = GetInstance();
233 if (shell->scoped_target_root_window_)
234 return shell->scoped_target_root_window_;
235 return shell->target_root_window_;
236 }
237
238 // static
GetScreen()239 gfx::Screen* Shell::GetScreen() {
240 return gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE);
241 }
242
243 // static
GetAllRootWindows()244 aura::Window::Windows Shell::GetAllRootWindows() {
245 return Shell::GetInstance()->display_controller()->
246 GetAllRootWindows();
247 }
248
249 // static
GetContainer(aura::Window * root_window,int container_id)250 aura::Window* Shell::GetContainer(aura::Window* root_window,
251 int container_id) {
252 return root_window->GetChildById(container_id);
253 }
254
255 // static
GetContainer(const aura::Window * root_window,int container_id)256 const aura::Window* Shell::GetContainer(const aura::Window* root_window,
257 int container_id) {
258 return root_window->GetChildById(container_id);
259 }
260
261 // static
GetContainersFromAllRootWindows(int container_id,aura::Window * priority_root)262 std::vector<aura::Window*> Shell::GetContainersFromAllRootWindows(
263 int container_id,
264 aura::Window* priority_root) {
265 std::vector<aura::Window*> containers;
266 aura::Window::Windows root_windows = GetAllRootWindows();
267 for (aura::Window::Windows::const_iterator it = root_windows.begin();
268 it != root_windows.end(); ++it) {
269 aura::Window* container = (*it)->GetChildById(container_id);
270 if (container) {
271 if (priority_root && priority_root->Contains(container))
272 containers.insert(containers.begin(), container);
273 else
274 containers.push_back(container);
275 }
276 }
277 return containers;
278 }
279
ShowContextMenu(const gfx::Point & location_in_screen,ui::MenuSourceType source_type)280 void Shell::ShowContextMenu(const gfx::Point& location_in_screen,
281 ui::MenuSourceType source_type) {
282 // No context menus if there is no session with an active user.
283 if (!session_state_delegate_->NumberOfLoggedInUsers())
284 return;
285 // No context menus when screen is locked.
286 if (session_state_delegate_->IsScreenLocked())
287 return;
288
289 aura::Window* root =
290 wm::GetRootWindowMatching(gfx::Rect(location_in_screen, gfx::Size()));
291 GetRootWindowController(root)
292 ->ShowContextMenu(location_in_screen, source_type);
293 }
294
ToggleAppList(aura::Window * window)295 void Shell::ToggleAppList(aura::Window* window) {
296 // If the context window is not given, show it on the target root window.
297 if (!window)
298 window = GetTargetRootWindow();
299 if (!app_list_controller_)
300 app_list_controller_.reset(new AppListController);
301 app_list_controller_->SetVisible(!app_list_controller_->IsVisible(), window);
302 }
303
GetAppListTargetVisibility() const304 bool Shell::GetAppListTargetVisibility() const {
305 return app_list_controller_.get() &&
306 app_list_controller_->GetTargetVisibility();
307 }
308
GetAppListWindow()309 aura::Window* Shell::GetAppListWindow() {
310 return app_list_controller_.get() ? app_list_controller_->GetWindow() : NULL;
311 }
312
GetAppListView()313 app_list::AppListView* Shell::GetAppListView() {
314 return app_list_controller_.get() ? app_list_controller_->GetView() : NULL;
315 }
316
IsSystemModalWindowOpen() const317 bool Shell::IsSystemModalWindowOpen() const {
318 if (simulate_modal_window_open_for_testing_)
319 return true;
320 const std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
321 kShellWindowId_SystemModalContainer, NULL);
322 for (std::vector<aura::Window*>::const_iterator cit = containers.begin();
323 cit != containers.end(); ++cit) {
324 for (aura::Window::Windows::const_iterator wit = (*cit)->children().begin();
325 wit != (*cit)->children().end(); ++wit) {
326 if ((*wit)->GetProperty(aura::client::kModalKey) ==
327 ui::MODAL_TYPE_SYSTEM && (*wit)->TargetVisibility()) {
328 return true;
329 }
330 }
331 }
332 return false;
333 }
334
CreateDefaultNonClientFrameView(views::Widget * widget)335 views::NonClientFrameView* Shell::CreateDefaultNonClientFrameView(
336 views::Widget* widget) {
337 // Use translucent-style window frames for dialogs.
338 return new CustomFrameViewAsh(widget);
339 }
340
RotateFocus(Direction direction)341 void Shell::RotateFocus(Direction direction) {
342 focus_cycler_->RotateFocus(direction == FORWARD ? FocusCycler::FORWARD
343 : FocusCycler::BACKWARD);
344 }
345
SetDisplayWorkAreaInsets(Window * contains,const gfx::Insets & insets)346 void Shell::SetDisplayWorkAreaInsets(Window* contains,
347 const gfx::Insets& insets) {
348 if (!display_controller_->UpdateWorkAreaOfDisplayNearestWindow(
349 contains, insets)) {
350 return;
351 }
352 FOR_EACH_OBSERVER(ShellObserver, observers_,
353 OnDisplayWorkAreaInsetsChanged());
354 }
355
OnLoginStateChanged(user::LoginStatus status)356 void Shell::OnLoginStateChanged(user::LoginStatus status) {
357 FOR_EACH_OBSERVER(ShellObserver, observers_, OnLoginStateChanged(status));
358 }
359
OnLoginUserProfilePrepared()360 void Shell::OnLoginUserProfilePrepared() {
361 CreateShelf();
362 CreateKeyboard();
363 }
364
UpdateAfterLoginStatusChange(user::LoginStatus status)365 void Shell::UpdateAfterLoginStatusChange(user::LoginStatus status) {
366 RootWindowControllerList controllers = GetAllRootWindowControllers();
367 for (RootWindowControllerList::iterator iter = controllers.begin();
368 iter != controllers.end(); ++iter)
369 (*iter)->UpdateAfterLoginStatusChange(status);
370 }
371
OnAppTerminating()372 void Shell::OnAppTerminating() {
373 FOR_EACH_OBSERVER(ShellObserver, observers_, OnAppTerminating());
374 }
375
OnLockStateChanged(bool locked)376 void Shell::OnLockStateChanged(bool locked) {
377 FOR_EACH_OBSERVER(ShellObserver, observers_, OnLockStateChanged(locked));
378 #ifndef NDEBUG
379 // Make sure that there is no system modal in Lock layer when unlocked.
380 if (!locked) {
381 std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
382 kShellWindowId_LockSystemModalContainer, GetPrimaryRootWindow());
383 for (std::vector<aura::Window*>::const_iterator iter = containers.begin();
384 iter != containers.end(); ++iter) {
385 DCHECK_EQ(0u, (*iter)->children().size());
386 }
387 }
388 #endif
389 }
390
OnCastingSessionStartedOrStopped(bool started)391 void Shell::OnCastingSessionStartedOrStopped(bool started) {
392 #if defined(OS_CHROMEOS) && defined(USE_X11)
393 if (projecting_observer_)
394 projecting_observer_->OnCastingSessionStartedOrStopped(started);
395 #endif
396 }
397
OnOverviewModeStarting()398 void Shell::OnOverviewModeStarting() {
399 FOR_EACH_OBSERVER(ShellObserver, observers_, OnOverviewModeStarting());
400 }
401
OnOverviewModeEnding()402 void Shell::OnOverviewModeEnding() {
403 FOR_EACH_OBSERVER(ShellObserver, observers_, OnOverviewModeEnding());
404 }
405
OnMaximizeModeStarted()406 void Shell::OnMaximizeModeStarted() {
407 FOR_EACH_OBSERVER(ShellObserver, observers_, OnMaximizeModeStarted());
408 }
409
OnMaximizeModeEnded()410 void Shell::OnMaximizeModeEnded() {
411 FOR_EACH_OBSERVER(ShellObserver, observers_, OnMaximizeModeEnded());
412 }
413
OnRootWindowAdded(aura::Window * root_window)414 void Shell::OnRootWindowAdded(aura::Window* root_window) {
415 FOR_EACH_OBSERVER(ShellObserver, observers_, OnRootWindowAdded(root_window));
416 }
417
CreateShelf()418 void Shell::CreateShelf() {
419 RootWindowControllerList controllers = GetAllRootWindowControllers();
420 for (RootWindowControllerList::iterator iter = controllers.begin();
421 iter != controllers.end(); ++iter)
422 (*iter)->shelf()->CreateShelf();
423 }
424
OnShelfCreatedForRootWindow(aura::Window * root_window)425 void Shell::OnShelfCreatedForRootWindow(aura::Window* root_window) {
426 FOR_EACH_OBSERVER(ShellObserver,
427 observers_,
428 OnShelfCreatedForRootWindow(root_window));
429 }
430
CreateKeyboard()431 void Shell::CreateKeyboard() {
432 // TODO(bshe): Primary root window controller may not be the controller to
433 // attach virtual keyboard. See http://crbug.com/303429
434 InitKeyboard();
435 if (keyboard::IsKeyboardUsabilityExperimentEnabled()) {
436 display_controller()->virtual_keyboard_window_controller()->
437 ActivateKeyboard(keyboard::KeyboardController::GetInstance());
438 } else {
439 GetPrimaryRootWindowController()->
440 ActivateKeyboard(keyboard::KeyboardController::GetInstance());
441 }
442 }
443
DeactivateKeyboard()444 void Shell::DeactivateKeyboard() {
445 if (keyboard::KeyboardController::GetInstance()) {
446 RootWindowControllerList controllers = GetAllRootWindowControllers();
447 for (RootWindowControllerList::iterator iter = controllers.begin();
448 iter != controllers.end(); ++iter) {
449 (*iter)->DeactivateKeyboard(keyboard::KeyboardController::GetInstance());
450 }
451 }
452 keyboard::KeyboardController::ResetInstance(NULL);
453 }
454
ShowShelf()455 void Shell::ShowShelf() {
456 RootWindowControllerList controllers = GetAllRootWindowControllers();
457 for (RootWindowControllerList::iterator iter = controllers.begin();
458 iter != controllers.end(); ++iter)
459 (*iter)->ShowShelf();
460 }
461
AddShellObserver(ShellObserver * observer)462 void Shell::AddShellObserver(ShellObserver* observer) {
463 observers_.AddObserver(observer);
464 }
465
RemoveShellObserver(ShellObserver * observer)466 void Shell::RemoveShellObserver(ShellObserver* observer) {
467 observers_.RemoveObserver(observer);
468 }
469
470 #if defined(OS_CHROMEOS)
ShouldSaveDisplaySettings()471 bool Shell::ShouldSaveDisplaySettings() {
472 return !((maximize_mode_controller_->IsMaximizeModeWindowManagerEnabled() &&
473 maximize_mode_controller_->in_set_screen_rotation()) ||
474 resolution_notification_controller_->DoesNotificationTimeout());
475 }
476 #endif
477
UpdateShelfVisibility()478 void Shell::UpdateShelfVisibility() {
479 RootWindowControllerList controllers = GetAllRootWindowControllers();
480 for (RootWindowControllerList::iterator iter = controllers.begin();
481 iter != controllers.end(); ++iter)
482 if ((*iter)->shelf())
483 (*iter)->UpdateShelfVisibility();
484 }
485
SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,aura::Window * root_window)486 void Shell::SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
487 aura::Window* root_window) {
488 ash::ShelfLayoutManager::ForShelf(root_window)->SetAutoHideBehavior(behavior);
489 }
490
GetShelfAutoHideBehavior(aura::Window * root_window) const491 ShelfAutoHideBehavior Shell::GetShelfAutoHideBehavior(
492 aura::Window* root_window) const {
493 return ash::ShelfLayoutManager::ForShelf(root_window)->auto_hide_behavior();
494 }
495
SetShelfAlignment(ShelfAlignment alignment,aura::Window * root_window)496 void Shell::SetShelfAlignment(ShelfAlignment alignment,
497 aura::Window* root_window) {
498 if (ash::ShelfLayoutManager::ForShelf(root_window)->SetAlignment(alignment)) {
499 FOR_EACH_OBSERVER(
500 ShellObserver, observers_, OnShelfAlignmentChanged(root_window));
501 }
502 }
503
GetShelfAlignment(const aura::Window * root_window)504 ShelfAlignment Shell::GetShelfAlignment(const aura::Window* root_window) {
505 return GetRootWindowController(root_window)
506 ->GetShelfLayoutManager()
507 ->GetAlignment();
508 }
509
SetDimming(bool should_dim)510 void Shell::SetDimming(bool should_dim) {
511 RootWindowControllerList controllers = GetAllRootWindowControllers();
512 for (RootWindowControllerList::iterator iter = controllers.begin();
513 iter != controllers.end(); ++iter)
514 (*iter)->screen_dimmer()->SetDimming(should_dim);
515 }
516
NotifyFullscreenStateChange(bool is_fullscreen,aura::Window * root_window)517 void Shell::NotifyFullscreenStateChange(bool is_fullscreen,
518 aura::Window* root_window) {
519 FOR_EACH_OBSERVER(ShellObserver, observers_, OnFullscreenStateChanged(
520 is_fullscreen, root_window));
521 }
522
CreateModalBackground(aura::Window * window)523 void Shell::CreateModalBackground(aura::Window* window) {
524 if (!modality_filter_) {
525 modality_filter_.reset(new SystemModalContainerEventFilter(this));
526 AddPreTargetHandler(modality_filter_.get());
527 }
528 RootWindowControllerList controllers = GetAllRootWindowControllers();
529 for (RootWindowControllerList::iterator iter = controllers.begin();
530 iter != controllers.end(); ++iter)
531 (*iter)->GetSystemModalLayoutManager(window)->CreateModalBackground();
532 }
533
OnModalWindowRemoved(aura::Window * removed)534 void Shell::OnModalWindowRemoved(aura::Window* removed) {
535 RootWindowControllerList controllers = GetAllRootWindowControllers();
536 bool activated = false;
537 for (RootWindowControllerList::iterator iter = controllers.begin();
538 iter != controllers.end() && !activated; ++iter) {
539 activated = (*iter)->GetSystemModalLayoutManager(removed)->
540 ActivateNextModalWindow();
541 }
542 if (!activated) {
543 RemovePreTargetHandler(modality_filter_.get());
544 modality_filter_.reset();
545 for (RootWindowControllerList::iterator iter = controllers.begin();
546 iter != controllers.end(); ++iter)
547 (*iter)->GetSystemModalLayoutManager(removed)->DestroyModalBackground();
548 }
549 }
550
GetWebNotificationTray()551 WebNotificationTray* Shell::GetWebNotificationTray() {
552 return GetPrimaryRootWindowController()->shelf()->
553 status_area_widget()->web_notification_tray();
554 }
555
HasPrimaryStatusArea()556 bool Shell::HasPrimaryStatusArea() {
557 ShelfWidget* shelf = GetPrimaryRootWindowController()->shelf();
558 return shelf && shelf->status_area_widget();
559 }
560
GetPrimarySystemTray()561 SystemTray* Shell::GetPrimarySystemTray() {
562 return GetPrimaryRootWindowController()->GetSystemTray();
563 }
564
GetShelfDelegate()565 ShelfDelegate* Shell::GetShelfDelegate() {
566 if (!shelf_delegate_) {
567 shelf_model_.reset(new ShelfModel);
568 // Creates ShelfItemDelegateManager before ShelfDelegate.
569 shelf_item_delegate_manager_.reset(
570 new ShelfItemDelegateManager(shelf_model_.get()));
571
572 shelf_delegate_.reset(delegate_->CreateShelfDelegate(shelf_model_.get()));
573 scoped_ptr<ShelfItemDelegate> controller(new AppListShelfItemDelegate);
574
575 // Finding the shelf model's location of the app list and setting its
576 // ShelfItemDelegate.
577 int app_list_index = shelf_model_->GetItemIndexForType(TYPE_APP_LIST);
578 DCHECK_GE(app_list_index, 0);
579 ShelfID app_list_id = shelf_model_->items()[app_list_index].id;
580 DCHECK(app_list_id);
581 shelf_item_delegate_manager_->SetShelfItemDelegate(app_list_id,
582 controller.Pass());
583 shelf_window_watcher_.reset(new ShelfWindowWatcher(
584 shelf_model_.get(), shelf_item_delegate_manager_.get()));
585 }
586 return shelf_delegate_.get();
587 }
588
SetTouchHudProjectionEnabled(bool enabled)589 void Shell::SetTouchHudProjectionEnabled(bool enabled) {
590 if (is_touch_hud_projection_enabled_ == enabled)
591 return;
592
593 is_touch_hud_projection_enabled_ = enabled;
594 FOR_EACH_OBSERVER(ShellObserver, observers_,
595 OnTouchHudProjectionToggled(enabled));
596 }
597
598 #if defined(OS_CHROMEOS)
CreateFirstRunHelper()599 ash::FirstRunHelper* Shell::CreateFirstRunHelper() {
600 return new ash::FirstRunHelperImpl;
601 }
602
SetCursorCompositingEnabled(bool enabled)603 void Shell::SetCursorCompositingEnabled(bool enabled) {
604 display_controller_->cursor_window_controller()->SetCursorCompositingEnabled(
605 enabled);
606 native_cursor_manager_->SetNativeCursorEnabled(!enabled);
607 }
608 #endif // defined(OS_CHROMEOS)
609
DoInitialWorkspaceAnimation()610 void Shell::DoInitialWorkspaceAnimation() {
611 return GetPrimaryRootWindowController()->workspace_controller()->
612 DoInitialAnimation();
613 }
614
615 ////////////////////////////////////////////////////////////////////////////////
616 // Shell, private:
617
Shell(ShellDelegate * delegate)618 Shell::Shell(ShellDelegate* delegate)
619 : target_root_window_(NULL),
620 scoped_target_root_window_(NULL),
621 delegate_(delegate),
622 window_positioner_(new WindowPositioner),
623 activation_client_(NULL),
624 accelerometer_controller_(new AccelerometerController()),
625 #if defined(OS_CHROMEOS)
626 display_configurator_(new ui::DisplayConfigurator()),
627 #endif // defined(OS_CHROMEOS)
628 native_cursor_manager_(new AshNativeCursorManager),
629 cursor_manager_(
630 scoped_ptr< ::wm::NativeCursorManager>(native_cursor_manager_)),
631 simulate_modal_window_open_for_testing_(false),
632 is_touch_hud_projection_enabled_(false) {
633 DCHECK(delegate_.get());
634 gpu_support_.reset(delegate_->CreateGPUSupport());
635 display_manager_.reset(new DisplayManager);
636 display_controller_.reset(new DisplayController);
637 #if defined(OS_CHROMEOS) && defined(USE_X11)
638 user_metrics_recorder_.reset(new UserMetricsRecorder);
639 #endif // defined(OS_CHROMEOS)
640
641 #if defined(OS_CHROMEOS)
642 PowerStatus::Initialize();
643 #endif
644 }
645
~Shell()646 Shell::~Shell() {
647 TRACE_EVENT0("shutdown", "ash::Shell::Destructor");
648
649 delegate_->PreShutdown();
650
651 views::FocusManagerFactory::Install(NULL);
652
653 // Remove the focus from any window. This will prevent overhead and side
654 // effects (e.g. crashes) from changing focus during shutdown.
655 // See bug crbug.com/134502.
656 aura::client::GetFocusClient(GetPrimaryRootWindow())->FocusWindow(NULL);
657
658 // Please keep in same order as in Init() because it's easy to miss one.
659 if (window_modality_controller_)
660 window_modality_controller_.reset();
661 #if defined(OS_CHROMEOS) && defined(USE_X11)
662 RemovePreTargetHandler(magnifier_key_scroll_handler_.get());
663 magnifier_key_scroll_handler_.reset();
664
665 RemovePreTargetHandler(speech_feedback_handler_.get());
666 speech_feedback_handler_.reset();
667 #endif
668 RemovePreTargetHandler(user_activity_detector_.get());
669 RemovePreTargetHandler(overlay_filter_.get());
670 RemovePreTargetHandler(input_method_filter_.get());
671 RemovePreTargetHandler(accelerator_filter_.get());
672 RemovePreTargetHandler(event_transformation_handler_.get());
673 RemovePreTargetHandler(toplevel_window_event_handler_.get());
674 RemovePostTargetHandler(toplevel_window_event_handler_.get());
675 RemovePreTargetHandler(system_gesture_filter_.get());
676 RemovePreTargetHandler(keyboard_metrics_filter_.get());
677 RemovePreTargetHandler(mouse_cursor_filter_.get());
678
679 // TooltipController is deleted with the Shell so removing its references.
680 RemovePreTargetHandler(tooltip_controller_.get());
681
682 // Destroy maximize mode controller early on since it has some observers which
683 // need to be removed.
684 maximize_mode_controller_->Shutdown();
685 maximize_mode_controller_.reset();
686
687 // AppList needs to be released before shelf layout manager, which is
688 // destroyed with shelf container in the loop below. However, app list
689 // container is now on top of shelf container and released after it.
690 // TODO(xiyuan): Move it back when app list container is no longer needed.
691 app_list_controller_.reset();
692
693 #if defined(OS_CHROMEOS)
694 // Destroy the LastWindowClosedLogoutReminder before the
695 // LogoutConfirmationController.
696 last_window_closed_logout_reminder_.reset();
697
698 // Destroy the LogoutConfirmationController before the SystemTrayDelegate.
699 logout_confirmation_controller_.reset();
700 #endif
701
702 // Destroy SystemTrayDelegate before destroying the status area(s).
703 system_tray_delegate_->Shutdown();
704 system_tray_delegate_.reset();
705
706 locale_notification_controller_.reset();
707
708 // Drag-and-drop must be canceled prior to close all windows.
709 drag_drop_controller_.reset();
710
711 // Controllers who have WindowObserver added must be deleted
712 // before |display_controller_| is deleted.
713
714 #if defined(OS_CHROMEOS)
715 // VideoActivityNotifier must be deleted before |video_detector_| is
716 // deleted because it's observing video activity through
717 // VideoDetectorObserver interface.
718 video_activity_notifier_.reset();
719 #endif // defined(OS_CHROMEOS)
720 video_detector_.reset();
721 high_contrast_controller_.reset();
722
723 shadow_controller_.reset();
724 resize_shadow_controller_.reset();
725
726 window_cycle_controller_.reset();
727 window_selector_controller_.reset();
728 mru_window_tracker_.reset();
729
730 // |shelf_window_watcher_| has a weak pointer to |shelf_Model_|
731 // and has window observers.
732 shelf_window_watcher_.reset();
733
734 // Destroy all child windows including widgets.
735 display_controller_->CloseChildWindows();
736 display_controller_->CloseNonDesktopDisplay();
737
738 // Chrome implementation of shelf delegate depends on FocusClient,
739 // so must be deleted before |focus_client_|.
740 shelf_delegate_.reset();
741 focus_client_.reset();
742
743 // Destroy SystemTrayNotifier after destroying SystemTray as TrayItems
744 // needs to remove observers from it.
745 system_tray_notifier_.reset();
746
747 // These need a valid Shell instance to clean up properly, so explicitly
748 // delete them before invalidating the instance.
749 // Alphabetical. TODO(oshima): sort.
750 magnification_controller_.reset();
751 partial_magnification_controller_.reset();
752 tooltip_controller_.reset();
753 event_client_.reset();
754 nested_accelerator_controller_.reset();
755 toplevel_window_event_handler_.reset();
756 visibility_controller_.reset();
757 // |shelf_item_delegate_manager_| observes |shelf_model_|. It must be
758 // destroyed before |shelf_model_| is destroyed.
759 shelf_item_delegate_manager_.reset();
760 shelf_model_.reset();
761
762 power_button_controller_.reset();
763 lock_state_controller_.reset();
764
765 #if defined(OS_CHROMEOS)
766 resolution_notification_controller_.reset();
767 #endif
768 desktop_background_controller_.reset();
769 mouse_cursor_filter_.reset();
770
771 #if defined(OS_CHROMEOS) && defined(USE_X11)
772 touch_transformer_controller_.reset();
773 #endif // defined(OS_CHROMEOS) && defined(USE_X11)
774
775 // This also deletes all RootWindows. Note that we invoke Shutdown() on
776 // DisplayController before resetting |display_controller_|, since destruction
777 // of its owned RootWindowControllers relies on the value.
778 display_manager_->CreateScreenForShutdown();
779 display_controller_->Shutdown();
780 display_controller_.reset();
781 screen_position_controller_.reset();
782 accessibility_delegate_.reset();
783 new_window_delegate_.reset();
784 media_delegate_.reset();
785
786 keyboard::KeyboardController::ResetInstance(NULL);
787
788 #if defined(OS_CHROMEOS)
789 if (display_change_observer_)
790 display_configurator_->RemoveObserver(display_change_observer_.get());
791 if (display_configurator_animation_)
792 display_configurator_->RemoveObserver(
793 display_configurator_animation_.get());
794 if (display_error_observer_)
795 display_configurator_->RemoveObserver(display_error_observer_.get());
796 if (projecting_observer_)
797 display_configurator_->RemoveObserver(projecting_observer_.get());
798 display_change_observer_.reset();
799 #endif // defined(OS_CHROMEOS)
800
801 #if defined(OS_CHROMEOS)
802 PowerStatus::Shutdown();
803 #endif
804
805 DCHECK(instance_ == this);
806 instance_ = NULL;
807 }
808
Init(const ShellInitParams & init_params)809 void Shell::Init(const ShellInitParams& init_params) {
810 delegate_->PreInit();
811 if (keyboard::IsKeyboardUsabilityExperimentEnabled()) {
812 display_manager_->SetSecondDisplayMode(DisplayManager::VIRTUAL_KEYBOARD);
813 }
814 bool display_initialized = display_manager_->InitFromCommandLine();
815 #if defined(OS_CHROMEOS)
816 display_configurator_->Init(!gpu_support_->IsPanelFittingDisabled());
817 display_configurator_animation_.reset(new DisplayConfiguratorAnimation());
818 display_configurator_->AddObserver(display_configurator_animation_.get());
819
820 projecting_observer_.reset(new ProjectingObserver());
821 display_configurator_->AddObserver(projecting_observer_.get());
822
823 if (!display_initialized && base::SysInfo::IsRunningOnChromeOS()) {
824 display_change_observer_.reset(new DisplayChangeObserver);
825 // Register |display_change_observer_| first so that the rest of
826 // observer gets invoked after the root windows are configured.
827 display_configurator_->AddObserver(display_change_observer_.get());
828 display_error_observer_.reset(new DisplayErrorObserver());
829 display_configurator_->AddObserver(display_error_observer_.get());
830 display_configurator_->set_state_controller(display_change_observer_.get());
831 display_configurator_->set_mirroring_controller(display_manager_.get());
832 display_configurator_->ForceInitialConfigure(
833 delegate_->IsFirstRunAfterBoot() ? kChromeOsBootColor : 0);
834 display_initialized = true;
835 }
836 #endif // defined(OS_CHROMEOS)
837 if (!display_initialized)
838 display_manager_->InitDefaultDisplay();
839
840 // Install the custom factory first so that views::FocusManagers for Tray,
841 // Shelf, and WallPaper could be created by the factory.
842 views::FocusManagerFactory::Install(new AshFocusManagerFactory);
843
844 aura::Env::CreateInstance(true);
845 aura::Env::GetInstance()->set_context_factory(init_params.context_factory);
846
847 // The WindowModalityController needs to be at the front of the input event
848 // pretarget handler list to ensure that it processes input events when modal
849 // windows are active.
850 window_modality_controller_.reset(
851 new ::wm::WindowModalityController(this));
852
853 env_filter_.reset(new ::wm::CompoundEventFilter);
854 AddPreTargetHandler(env_filter_.get());
855
856 ::wm::FocusController* focus_controller =
857 new ::wm::FocusController(new wm::AshFocusRules);
858 focus_client_.reset(focus_controller);
859 activation_client_ = focus_controller;
860 activation_client_->AddObserver(this);
861 focus_cycler_.reset(new FocusCycler());
862
863 screen_position_controller_.reset(new ScreenPositionController);
864
865 display_controller_->Start();
866 display_controller_->CreatePrimaryHost(
867 ShellInitParamsToAshWindowTreeHostInitParams(init_params));
868 aura::Window* root_window = display_controller_->GetPrimaryRootWindow();
869 target_root_window_ = root_window;
870
871 #if defined(OS_CHROMEOS)
872 resolution_notification_controller_.reset(
873 new ResolutionNotificationController);
874 #endif
875
876 cursor_manager_.SetDisplay(GetScreen()->GetPrimaryDisplay());
877
878 nested_accelerator_controller_.reset(
879 new ::wm::NestedAcceleratorController(new NestedAcceleratorDelegate));
880 accelerator_controller_.reset(new AcceleratorController);
881 maximize_mode_controller_.reset(new MaximizeModeController());
882
883 #if defined(OS_CHROMEOS) && defined(USE_X11)
884 magnifier_key_scroll_handler_ = MagnifierKeyScroller::CreateHandler().Pass();
885 AddPreTargetHandler(magnifier_key_scroll_handler_.get());
886 speech_feedback_handler_ = SpokenFeedbackToggler::CreateHandler().Pass();
887 AddPreTargetHandler(speech_feedback_handler_.get());
888 #endif
889
890 // The order in which event filters are added is significant.
891
892 #if defined(OS_CHROMEOS)
893 // The StickyKeysController also rewrites events and must be added
894 // before observers, but after the EventRewriterEventFilter.
895 sticky_keys_controller_.reset(new StickyKeysController);
896 AddPreTargetHandler(sticky_keys_controller_.get());
897 #endif
898
899 // wm::UserActivityDetector passes events to observers, so let them get
900 // rewritten first.
901 user_activity_detector_.reset(new ::wm::UserActivityDetector);
902 AddPreTargetHandler(user_activity_detector_.get());
903
904 overlay_filter_.reset(new OverlayEventFilter);
905 AddPreTargetHandler(overlay_filter_.get());
906 AddShellObserver(overlay_filter_.get());
907
908 input_method_filter_.reset(new ::wm::InputMethodEventFilter(
909 root_window->GetHost()->GetAcceleratedWidget()));
910 AddPreTargetHandler(input_method_filter_.get());
911
912 accelerator_filter_.reset(new ::wm::AcceleratorFilter(
913 scoped_ptr< ::wm::AcceleratorDelegate>(new AcceleratorDelegate).Pass()));
914 AddPreTargetHandler(accelerator_filter_.get());
915
916 event_transformation_handler_.reset(new EventTransformationHandler);
917 AddPreTargetHandler(event_transformation_handler_.get());
918
919 toplevel_window_event_handler_.reset(new ToplevelWindowEventHandler);
920
921 system_gesture_filter_.reset(new SystemGestureEventFilter);
922 AddPreTargetHandler(system_gesture_filter_.get());
923
924 keyboard_metrics_filter_.reset(new KeyboardUMAEventFilter);
925 AddPreTargetHandler(keyboard_metrics_filter_.get());
926
927 // The keyboard system must be initialized before the RootWindowController is
928 // created.
929 #if defined(OS_CHROMEOS)
930 keyboard::InitializeKeyboard();
931 #endif
932
933 lock_state_controller_.reset(new LockStateController);
934 power_button_controller_.reset(new PowerButtonController(
935 lock_state_controller_.get()));
936 #if defined(OS_CHROMEOS)
937 // Pass the initial display state to PowerButtonController.
938 power_button_controller_->OnDisplayModeChanged(
939 display_configurator_->cached_displays());
940 #endif
941 AddShellObserver(lock_state_controller_.get());
942
943 drag_drop_controller_.reset(new DragDropController);
944 mouse_cursor_filter_.reset(new MouseCursorEventFilter());
945 PrependPreTargetHandler(mouse_cursor_filter_.get());
946
947 // Create Controllers that may need root window.
948 // TODO(oshima): Move as many controllers before creating
949 // RootWindowController as possible.
950 visibility_controller_.reset(new AshVisibilityController);
951
952 magnification_controller_.reset(
953 MagnificationController::CreateInstance());
954 mru_window_tracker_.reset(new MruWindowTracker(activation_client_));
955
956 partial_magnification_controller_.reset(
957 new PartialMagnificationController());
958
959 autoclick_controller_.reset(AutoclickController::CreateInstance());
960
961 high_contrast_controller_.reset(new HighContrastController);
962 video_detector_.reset(new VideoDetector);
963 window_selector_controller_.reset(new WindowSelectorController());
964 window_cycle_controller_.reset(new WindowCycleController());
965
966 tooltip_controller_.reset(
967 new views::corewm::TooltipController(
968 scoped_ptr<views::corewm::Tooltip>(
969 new views::corewm::TooltipAura(gfx::SCREEN_TYPE_ALTERNATE))));
970 AddPreTargetHandler(tooltip_controller_.get());
971
972 event_client_.reset(new EventClientImpl);
973
974 // This controller needs to be set before SetupManagedWindowMode.
975 desktop_background_controller_.reset(new DesktopBackgroundController());
976 user_wallpaper_delegate_.reset(delegate_->CreateUserWallpaperDelegate());
977
978 session_state_delegate_.reset(delegate_->CreateSessionStateDelegate());
979 accessibility_delegate_.reset(delegate_->CreateAccessibilityDelegate());
980 new_window_delegate_.reset(delegate_->CreateNewWindowDelegate());
981 media_delegate_.reset(delegate_->CreateMediaDelegate());
982
983 resize_shadow_controller_.reset(new ResizeShadowController());
984 shadow_controller_.reset(
985 new ::wm::ShadowController(activation_client_));
986
987 // Create system_tray_notifier_ before the delegate.
988 system_tray_notifier_.reset(new ash::SystemTrayNotifier());
989
990 // Initialize system_tray_delegate_ before initializing StatusAreaWidget.
991 system_tray_delegate_.reset(delegate()->CreateSystemTrayDelegate());
992 DCHECK(system_tray_delegate_.get());
993
994 locale_notification_controller_.reset(new LocaleNotificationController);
995
996 // Initialize system_tray_delegate_ after StatusAreaWidget is created.
997 system_tray_delegate_->Initialize();
998
999 #if defined(OS_CHROMEOS)
1000 // Create the LogoutConfirmationController after the SystemTrayDelegate.
1001 logout_confirmation_controller_.reset(new LogoutConfirmationController(
1002 base::Bind(&SystemTrayDelegate::SignOut,
1003 base::Unretained(system_tray_delegate_.get()))));
1004 #endif
1005
1006 #if defined(OS_CHROMEOS) && defined(USE_X11)
1007 // Create TouchTransformerController before DisplayController::InitDisplays()
1008 // since TouchTransformerController listens on
1009 // DisplayController::Observer::OnDisplaysInitialized().
1010 touch_transformer_controller_.reset(new TouchTransformerController());
1011 #endif // defined(OS_CHROMEOS) && defined(USE_X11)
1012
1013 display_controller_->InitDisplays();
1014
1015 // It needs to be created after RootWindowController has been created
1016 // (which calls OnWindowResized has been called, otherwise the
1017 // widget will not paint when restoring after a browser crash. Also it needs
1018 // to be created after InitSecondaryDisplays() to initialize the wallpapers in
1019 // the correct size.
1020 user_wallpaper_delegate_->InitializeWallpaper();
1021
1022 if (initially_hide_cursor_)
1023 cursor_manager_.HideCursor();
1024 cursor_manager_.SetCursor(ui::kCursorPointer);
1025
1026 #if defined(OS_CHROMEOS)
1027 // Set accelerator controller delegates.
1028 accelerator_controller_->SetBrightnessControlDelegate(
1029 scoped_ptr<ash::BrightnessControlDelegate>(
1030 new ash::system::BrightnessControllerChromeos).Pass());
1031
1032 power_event_observer_.reset(new PowerEventObserver());
1033 user_activity_notifier_.reset(
1034 new ui::UserActivityPowerManagerNotifier(user_activity_detector_.get()));
1035 video_activity_notifier_.reset(
1036 new VideoActivityNotifier(video_detector_.get()));
1037 bluetooth_notification_controller_.reset(new BluetoothNotificationController);
1038 last_window_closed_logout_reminder_.reset(new LastWindowClosedLogoutReminder);
1039 #endif
1040
1041 weak_display_manager_factory_.reset(
1042 new base::WeakPtrFactory<DisplayManager>(display_manager_.get()));
1043 // The compositor thread and main message loop have to be running in
1044 // order to create mirror window. Run it after the main message loop
1045 // is started.
1046 base::MessageLoopForUI::current()->PostTask(
1047 FROM_HERE,
1048 base::Bind(&DisplayManager::CreateMirrorWindowIfAny,
1049 weak_display_manager_factory_->GetWeakPtr()));
1050 }
1051
InitKeyboard()1052 void Shell::InitKeyboard() {
1053 if (keyboard::IsKeyboardEnabled()) {
1054 if (keyboard::KeyboardController::GetInstance()) {
1055 RootWindowControllerList controllers = GetAllRootWindowControllers();
1056 for (RootWindowControllerList::iterator iter = controllers.begin();
1057 iter != controllers.end(); ++iter) {
1058 (*iter)->DeactivateKeyboard(
1059 keyboard::KeyboardController::GetInstance());
1060 }
1061 }
1062 keyboard::KeyboardControllerProxy* proxy =
1063 delegate_->CreateKeyboardControllerProxy();
1064 keyboard::KeyboardController::ResetInstance(
1065 new keyboard::KeyboardController(proxy));
1066 }
1067 }
1068
InitRootWindow(aura::Window * root_window)1069 void Shell::InitRootWindow(aura::Window* root_window) {
1070 DCHECK(activation_client_);
1071 DCHECK(visibility_controller_.get());
1072 DCHECK(drag_drop_controller_.get());
1073
1074 aura::client::SetFocusClient(root_window, focus_client_.get());
1075 input_method_filter_->SetInputMethodPropertyInRootWindow(root_window);
1076 aura::client::SetActivationClient(root_window, activation_client_);
1077 ::wm::FocusController* focus_controller =
1078 static_cast< ::wm::FocusController*>(activation_client_);
1079 root_window->AddPreTargetHandler(focus_controller);
1080 aura::client::SetVisibilityClient(root_window, visibility_controller_.get());
1081 aura::client::SetDragDropClient(root_window, drag_drop_controller_.get());
1082 aura::client::SetScreenPositionClient(root_window,
1083 screen_position_controller_.get());
1084 aura::client::SetCursorClient(root_window, &cursor_manager_);
1085 aura::client::SetTooltipClient(root_window, tooltip_controller_.get());
1086 aura::client::SetEventClient(root_window, event_client_.get());
1087
1088 aura::client::SetWindowMoveClient(root_window,
1089 toplevel_window_event_handler_.get());
1090 root_window->AddPreTargetHandler(toplevel_window_event_handler_.get());
1091 root_window->AddPostTargetHandler(toplevel_window_event_handler_.get());
1092
1093 if (nested_accelerator_controller_) {
1094 aura::client::SetDispatcherClient(root_window,
1095 nested_accelerator_controller_.get());
1096 }
1097 }
1098
CanWindowReceiveEvents(aura::Window * window)1099 bool Shell::CanWindowReceiveEvents(aura::Window* window) {
1100 RootWindowControllerList controllers = GetAllRootWindowControllers();
1101 for (RootWindowControllerList::iterator iter = controllers.begin();
1102 iter != controllers.end(); ++iter) {
1103 SystemModalContainerLayoutManager* layout_manager =
1104 (*iter)->GetSystemModalLayoutManager(window);
1105 if (layout_manager && layout_manager->CanWindowReceiveEvents(window))
1106 return true;
1107 // Allow events to fall through to the virtual keyboard even if displaying
1108 // a system modal dialog.
1109 if ((*iter)->IsVirtualKeyboardWindow(window))
1110 return true;
1111 }
1112
1113 return false;
1114 }
1115
1116 ////////////////////////////////////////////////////////////////////////////////
1117 // Shell, ui::EventTarget overrides:
1118
CanAcceptEvent(const ui::Event & event)1119 bool Shell::CanAcceptEvent(const ui::Event& event) {
1120 return true;
1121 }
1122
GetParentTarget()1123 ui::EventTarget* Shell::GetParentTarget() {
1124 return aura::Env::GetInstance();
1125 }
1126
GetChildIterator() const1127 scoped_ptr<ui::EventTargetIterator> Shell::GetChildIterator() const {
1128 return scoped_ptr<ui::EventTargetIterator>();
1129 }
1130
GetEventTargeter()1131 ui::EventTargeter* Shell::GetEventTargeter() {
1132 NOTREACHED();
1133 return NULL;
1134 }
1135
OnEvent(ui::Event * event)1136 void Shell::OnEvent(ui::Event* event) {
1137 }
1138
1139 ////////////////////////////////////////////////////////////////////////////////
1140 // Shell, aura::client::ActivationChangeObserver implementation:
1141
OnWindowActivated(aura::Window * gained_active,aura::Window * lost_active)1142 void Shell::OnWindowActivated(aura::Window* gained_active,
1143 aura::Window* lost_active) {
1144 if (gained_active)
1145 target_root_window_ = gained_active->GetRootWindow();
1146 }
1147
1148 } // namespace ash
1149