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/drag_drop/drag_drop_controller.h"
27 #include "ash/first_run/first_run_helper_impl.h"
28 #include "ash/focus_cycler.h"
29 #include "ash/frame/custom_frame_view_ash.h"
30 #include "ash/gpu_support.h"
31 #include "ash/high_contrast/high_contrast_controller.h"
32 #include "ash/host/ash_window_tree_host_init_params.h"
33 #include "ash/keyboard_uma_event_filter.h"
34 #include "ash/magnifier/magnification_controller.h"
35 #include "ash/magnifier/partial_magnification_controller.h"
36 #include "ash/media_delegate.h"
37 #include "ash/new_window_delegate.h"
38 #include "ash/root_window_controller.h"
39 #include "ash/session/session_state_delegate.h"
40 #include "ash/shelf/app_list_shelf_item_delegate.h"
41 #include "ash/shelf/shelf_delegate.h"
42 #include "ash/shelf/shelf_item_delegate.h"
43 #include "ash/shelf/shelf_item_delegate_manager.h"
44 #include "ash/shelf/shelf_layout_manager.h"
45 #include "ash/shelf/shelf_model.h"
46 #include "ash/shelf/shelf_widget.h"
47 #include "ash/shelf/shelf_window_watcher.h"
48 #include "ash/shell_delegate.h"
49 #include "ash/shell_factory.h"
50 #include "ash/shell_init_params.h"
51 #include "ash/shell_window_ids.h"
52 #include "ash/system/locale/locale_notification_controller.h"
53 #include "ash/system/status_area_widget.h"
54 #include "ash/system/tray/system_tray_delegate.h"
55 #include "ash/system/tray/system_tray_notifier.h"
56 #include "ash/virtual_keyboard_controller.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 CHECK(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 CHECK(HasInstance());
217 return GetRootWindowController(GetPrimaryRootWindow());
218 }
219
220 // static
GetAllRootWindowControllers()221 Shell::RootWindowControllerList Shell::GetAllRootWindowControllers() {
222 CHECK(HasInstance());
223 return Shell::GetInstance()->display_controller()->
224 GetAllRootWindowControllers();
225 }
226
227 // static
GetPrimaryRootWindow()228 aura::Window* Shell::GetPrimaryRootWindow() {
229 CHECK(HasInstance());
230 return GetInstance()->display_controller()->GetPrimaryRootWindow();
231 }
232
233 // static
GetTargetRootWindow()234 aura::Window* Shell::GetTargetRootWindow() {
235 CHECK(HasInstance());
236 Shell* shell = GetInstance();
237 if (shell->scoped_target_root_window_)
238 return shell->scoped_target_root_window_;
239 return shell->target_root_window_;
240 }
241
242 // static
GetScreen()243 gfx::Screen* Shell::GetScreen() {
244 return gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE);
245 }
246
247 // static
GetAllRootWindows()248 aura::Window::Windows Shell::GetAllRootWindows() {
249 CHECK(HasInstance());
250 return Shell::GetInstance()->display_controller()->
251 GetAllRootWindows();
252 }
253
254 // static
GetContainer(aura::Window * root_window,int container_id)255 aura::Window* Shell::GetContainer(aura::Window* root_window,
256 int container_id) {
257 return root_window->GetChildById(container_id);
258 }
259
260 // static
GetContainer(const aura::Window * root_window,int container_id)261 const aura::Window* Shell::GetContainer(const aura::Window* root_window,
262 int container_id) {
263 return root_window->GetChildById(container_id);
264 }
265
266 // static
GetContainersFromAllRootWindows(int container_id,aura::Window * priority_root)267 std::vector<aura::Window*> Shell::GetContainersFromAllRootWindows(
268 int container_id,
269 aura::Window* priority_root) {
270 std::vector<aura::Window*> containers;
271 aura::Window::Windows root_windows = GetAllRootWindows();
272 for (aura::Window::Windows::const_iterator it = root_windows.begin();
273 it != root_windows.end(); ++it) {
274 aura::Window* container = (*it)->GetChildById(container_id);
275 if (container) {
276 if (priority_root && priority_root->Contains(container))
277 containers.insert(containers.begin(), container);
278 else
279 containers.push_back(container);
280 }
281 }
282 return containers;
283 }
284
ShowContextMenu(const gfx::Point & location_in_screen,ui::MenuSourceType source_type)285 void Shell::ShowContextMenu(const gfx::Point& location_in_screen,
286 ui::MenuSourceType source_type) {
287 // No context menus if there is no session with an active user.
288 if (!session_state_delegate_->NumberOfLoggedInUsers())
289 return;
290 // No context menus when screen is locked.
291 if (session_state_delegate_->IsScreenLocked())
292 return;
293
294 aura::Window* root =
295 wm::GetRootWindowMatching(gfx::Rect(location_in_screen, gfx::Size()));
296 GetRootWindowController(root)
297 ->ShowContextMenu(location_in_screen, source_type);
298 }
299
ShowAppList(aura::Window * window)300 void Shell::ShowAppList(aura::Window* window) {
301 // If the context window is not given, show it on the target root window.
302 if (!window)
303 window = GetTargetRootWindow();
304 if (!app_list_controller_)
305 app_list_controller_.reset(new AppListController);
306 app_list_controller_->Show(window);
307 }
308
DismissAppList()309 void Shell::DismissAppList() {
310 if (!app_list_controller_)
311 return;
312 app_list_controller_->Dismiss();
313 }
314
ToggleAppList(aura::Window * window)315 void Shell::ToggleAppList(aura::Window* window) {
316 if (app_list_controller_ && app_list_controller_->IsVisible()) {
317 DismissAppList();
318 return;
319 }
320
321 ShowAppList(window);
322 }
323
GetAppListTargetVisibility() const324 bool Shell::GetAppListTargetVisibility() const {
325 return app_list_controller_.get() &&
326 app_list_controller_->GetTargetVisibility();
327 }
328
GetAppListWindow()329 aura::Window* Shell::GetAppListWindow() {
330 return app_list_controller_.get() ? app_list_controller_->GetWindow() : NULL;
331 }
332
GetAppListView()333 app_list::AppListView* Shell::GetAppListView() {
334 return app_list_controller_.get() ? app_list_controller_->GetView() : NULL;
335 }
336
IsSystemModalWindowOpen() const337 bool Shell::IsSystemModalWindowOpen() const {
338 if (simulate_modal_window_open_for_testing_)
339 return true;
340 const std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
341 kShellWindowId_SystemModalContainer, NULL);
342 for (std::vector<aura::Window*>::const_iterator cit = containers.begin();
343 cit != containers.end(); ++cit) {
344 for (aura::Window::Windows::const_iterator wit = (*cit)->children().begin();
345 wit != (*cit)->children().end(); ++wit) {
346 if ((*wit)->GetProperty(aura::client::kModalKey) ==
347 ui::MODAL_TYPE_SYSTEM && (*wit)->TargetVisibility()) {
348 return true;
349 }
350 }
351 }
352 return false;
353 }
354
CreateDefaultNonClientFrameView(views::Widget * widget)355 views::NonClientFrameView* Shell::CreateDefaultNonClientFrameView(
356 views::Widget* widget) {
357 // Use translucent-style window frames for dialogs.
358 return new CustomFrameViewAsh(widget);
359 }
360
RotateFocus(Direction direction)361 void Shell::RotateFocus(Direction direction) {
362 focus_cycler_->RotateFocus(direction == FORWARD ? FocusCycler::FORWARD
363 : FocusCycler::BACKWARD);
364 }
365
SetDisplayWorkAreaInsets(Window * contains,const gfx::Insets & insets)366 void Shell::SetDisplayWorkAreaInsets(Window* contains,
367 const gfx::Insets& insets) {
368 if (!display_controller_->UpdateWorkAreaOfDisplayNearestWindow(
369 contains, insets)) {
370 return;
371 }
372 FOR_EACH_OBSERVER(ShellObserver, observers_,
373 OnDisplayWorkAreaInsetsChanged());
374 }
375
OnLoginStateChanged(user::LoginStatus status)376 void Shell::OnLoginStateChanged(user::LoginStatus status) {
377 FOR_EACH_OBSERVER(ShellObserver, observers_, OnLoginStateChanged(status));
378 }
379
OnLoginUserProfilePrepared()380 void Shell::OnLoginUserProfilePrepared() {
381 CreateShelf();
382 CreateKeyboard();
383 }
384
UpdateAfterLoginStatusChange(user::LoginStatus status)385 void Shell::UpdateAfterLoginStatusChange(user::LoginStatus status) {
386 RootWindowControllerList controllers = GetAllRootWindowControllers();
387 for (RootWindowControllerList::iterator iter = controllers.begin();
388 iter != controllers.end(); ++iter)
389 (*iter)->UpdateAfterLoginStatusChange(status);
390 }
391
OnAppTerminating()392 void Shell::OnAppTerminating() {
393 FOR_EACH_OBSERVER(ShellObserver, observers_, OnAppTerminating());
394 }
395
OnLockStateChanged(bool locked)396 void Shell::OnLockStateChanged(bool locked) {
397 FOR_EACH_OBSERVER(ShellObserver, observers_, OnLockStateChanged(locked));
398 #ifndef NDEBUG
399 // Make sure that there is no system modal in Lock layer when unlocked.
400 if (!locked) {
401 std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
402 kShellWindowId_LockSystemModalContainer, GetPrimaryRootWindow());
403 for (std::vector<aura::Window*>::const_iterator iter = containers.begin();
404 iter != containers.end(); ++iter) {
405 DCHECK_EQ(0u, (*iter)->children().size());
406 }
407 }
408 #endif
409 }
410
OnCastingSessionStartedOrStopped(bool started)411 void Shell::OnCastingSessionStartedOrStopped(bool started) {
412 #if defined(OS_CHROMEOS) && defined(USE_X11)
413 if (projecting_observer_)
414 projecting_observer_->OnCastingSessionStartedOrStopped(started);
415 #endif
416 }
417
OnOverviewModeStarting()418 void Shell::OnOverviewModeStarting() {
419 FOR_EACH_OBSERVER(ShellObserver, observers_, OnOverviewModeStarting());
420 }
421
OnOverviewModeEnding()422 void Shell::OnOverviewModeEnding() {
423 FOR_EACH_OBSERVER(ShellObserver, observers_, OnOverviewModeEnding());
424 }
425
OnMaximizeModeStarted()426 void Shell::OnMaximizeModeStarted() {
427 FOR_EACH_OBSERVER(ShellObserver, observers_, OnMaximizeModeStarted());
428 }
429
OnMaximizeModeEnded()430 void Shell::OnMaximizeModeEnded() {
431 FOR_EACH_OBSERVER(ShellObserver, observers_, OnMaximizeModeEnded());
432 }
433
OnRootWindowAdded(aura::Window * root_window)434 void Shell::OnRootWindowAdded(aura::Window* root_window) {
435 FOR_EACH_OBSERVER(ShellObserver, observers_, OnRootWindowAdded(root_window));
436 }
437
CreateShelf()438 void Shell::CreateShelf() {
439 RootWindowControllerList controllers = GetAllRootWindowControllers();
440 for (RootWindowControllerList::iterator iter = controllers.begin();
441 iter != controllers.end(); ++iter)
442 (*iter)->shelf()->CreateShelf();
443 }
444
OnShelfCreatedForRootWindow(aura::Window * root_window)445 void Shell::OnShelfCreatedForRootWindow(aura::Window* root_window) {
446 FOR_EACH_OBSERVER(ShellObserver,
447 observers_,
448 OnShelfCreatedForRootWindow(root_window));
449 }
450
CreateKeyboard()451 void Shell::CreateKeyboard() {
452 // TODO(bshe): Primary root window controller may not be the controller to
453 // attach virtual keyboard. See http://crbug.com/303429
454 InitKeyboard();
455 GetPrimaryRootWindowController()->
456 ActivateKeyboard(keyboard::KeyboardController::GetInstance());
457 }
458
DeactivateKeyboard()459 void Shell::DeactivateKeyboard() {
460 if (keyboard::KeyboardController::GetInstance()) {
461 RootWindowControllerList controllers = GetAllRootWindowControllers();
462 for (RootWindowControllerList::iterator iter = controllers.begin();
463 iter != controllers.end(); ++iter) {
464 (*iter)->DeactivateKeyboard(keyboard::KeyboardController::GetInstance());
465 }
466 }
467 keyboard::KeyboardController::ResetInstance(NULL);
468 }
469
ShowShelf()470 void Shell::ShowShelf() {
471 RootWindowControllerList controllers = GetAllRootWindowControllers();
472 for (RootWindowControllerList::iterator iter = controllers.begin();
473 iter != controllers.end(); ++iter)
474 (*iter)->ShowShelf();
475 }
476
AddShellObserver(ShellObserver * observer)477 void Shell::AddShellObserver(ShellObserver* observer) {
478 observers_.AddObserver(observer);
479 }
480
RemoveShellObserver(ShellObserver * observer)481 void Shell::RemoveShellObserver(ShellObserver* observer) {
482 observers_.RemoveObserver(observer);
483 }
484
485 #if defined(OS_CHROMEOS)
ShouldSaveDisplaySettings()486 bool Shell::ShouldSaveDisplaySettings() {
487 return !((maximize_mode_controller_->IsMaximizeModeWindowManagerEnabled() &&
488 maximize_mode_controller_->
489 ignore_display_configuration_updates()) ||
490 resolution_notification_controller_->DoesNotificationTimeout());
491 }
492 #endif
493
UpdateShelfVisibility()494 void Shell::UpdateShelfVisibility() {
495 RootWindowControllerList controllers = GetAllRootWindowControllers();
496 for (RootWindowControllerList::iterator iter = controllers.begin();
497 iter != controllers.end(); ++iter)
498 if ((*iter)->shelf())
499 (*iter)->UpdateShelfVisibility();
500 }
501
SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,aura::Window * root_window)502 void Shell::SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
503 aura::Window* root_window) {
504 ash::ShelfLayoutManager::ForShelf(root_window)->SetAutoHideBehavior(behavior);
505 }
506
GetShelfAutoHideBehavior(aura::Window * root_window) const507 ShelfAutoHideBehavior Shell::GetShelfAutoHideBehavior(
508 aura::Window* root_window) const {
509 return ash::ShelfLayoutManager::ForShelf(root_window)->auto_hide_behavior();
510 }
511
SetShelfAlignment(ShelfAlignment alignment,aura::Window * root_window)512 void Shell::SetShelfAlignment(ShelfAlignment alignment,
513 aura::Window* root_window) {
514 if (ash::ShelfLayoutManager::ForShelf(root_window)->SetAlignment(alignment)) {
515 FOR_EACH_OBSERVER(
516 ShellObserver, observers_, OnShelfAlignmentChanged(root_window));
517 }
518 }
519
GetShelfAlignment(const aura::Window * root_window)520 ShelfAlignment Shell::GetShelfAlignment(const aura::Window* root_window) {
521 return GetRootWindowController(root_window)
522 ->GetShelfLayoutManager()
523 ->GetAlignment();
524 }
525
SetDimming(bool should_dim)526 void Shell::SetDimming(bool should_dim) {
527 RootWindowControllerList controllers = GetAllRootWindowControllers();
528 for (RootWindowControllerList::iterator iter = controllers.begin();
529 iter != controllers.end(); ++iter)
530 (*iter)->screen_dimmer()->SetDimming(should_dim);
531 }
532
NotifyFullscreenStateChange(bool is_fullscreen,aura::Window * root_window)533 void Shell::NotifyFullscreenStateChange(bool is_fullscreen,
534 aura::Window* root_window) {
535 FOR_EACH_OBSERVER(ShellObserver, observers_, OnFullscreenStateChanged(
536 is_fullscreen, root_window));
537 }
538
CreateModalBackground(aura::Window * window)539 void Shell::CreateModalBackground(aura::Window* window) {
540 if (!modality_filter_) {
541 modality_filter_.reset(new SystemModalContainerEventFilter(this));
542 AddPreTargetHandler(modality_filter_.get());
543 }
544 RootWindowControllerList controllers = GetAllRootWindowControllers();
545 for (RootWindowControllerList::iterator iter = controllers.begin();
546 iter != controllers.end(); ++iter)
547 (*iter)->GetSystemModalLayoutManager(window)->CreateModalBackground();
548 }
549
OnModalWindowRemoved(aura::Window * removed)550 void Shell::OnModalWindowRemoved(aura::Window* removed) {
551 RootWindowControllerList controllers = GetAllRootWindowControllers();
552 bool activated = false;
553 for (RootWindowControllerList::iterator iter = controllers.begin();
554 iter != controllers.end() && !activated; ++iter) {
555 activated = (*iter)->GetSystemModalLayoutManager(removed)->
556 ActivateNextModalWindow();
557 }
558 if (!activated) {
559 RemovePreTargetHandler(modality_filter_.get());
560 modality_filter_.reset();
561 for (RootWindowControllerList::iterator iter = controllers.begin();
562 iter != controllers.end(); ++iter)
563 (*iter)->GetSystemModalLayoutManager(removed)->DestroyModalBackground();
564 }
565 }
566
GetWebNotificationTray()567 WebNotificationTray* Shell::GetWebNotificationTray() {
568 return GetPrimaryRootWindowController()->shelf()->
569 status_area_widget()->web_notification_tray();
570 }
571
HasPrimaryStatusArea()572 bool Shell::HasPrimaryStatusArea() {
573 ShelfWidget* shelf = GetPrimaryRootWindowController()->shelf();
574 return shelf && shelf->status_area_widget();
575 }
576
GetPrimarySystemTray()577 SystemTray* Shell::GetPrimarySystemTray() {
578 return GetPrimaryRootWindowController()->GetSystemTray();
579 }
580
GetShelfDelegate()581 ShelfDelegate* Shell::GetShelfDelegate() {
582 if (!shelf_delegate_) {
583 shelf_model_.reset(new ShelfModel);
584 // Creates ShelfItemDelegateManager before ShelfDelegate.
585 shelf_item_delegate_manager_.reset(
586 new ShelfItemDelegateManager(shelf_model_.get()));
587
588 shelf_delegate_.reset(delegate_->CreateShelfDelegate(shelf_model_.get()));
589 scoped_ptr<ShelfItemDelegate> controller(new AppListShelfItemDelegate);
590
591 // Finding the shelf model's location of the app list and setting its
592 // ShelfItemDelegate.
593 int app_list_index = shelf_model_->GetItemIndexForType(TYPE_APP_LIST);
594 DCHECK_GE(app_list_index, 0);
595 ShelfID app_list_id = shelf_model_->items()[app_list_index].id;
596 DCHECK(app_list_id);
597 shelf_item_delegate_manager_->SetShelfItemDelegate(app_list_id,
598 controller.Pass());
599 shelf_window_watcher_.reset(new ShelfWindowWatcher(
600 shelf_model_.get(), shelf_item_delegate_manager_.get()));
601 }
602 return shelf_delegate_.get();
603 }
604
SetTouchHudProjectionEnabled(bool enabled)605 void Shell::SetTouchHudProjectionEnabled(bool enabled) {
606 if (is_touch_hud_projection_enabled_ == enabled)
607 return;
608
609 is_touch_hud_projection_enabled_ = enabled;
610 FOR_EACH_OBSERVER(ShellObserver, observers_,
611 OnTouchHudProjectionToggled(enabled));
612 }
613
614 #if defined(OS_CHROMEOS)
CreateFirstRunHelper()615 ash::FirstRunHelper* Shell::CreateFirstRunHelper() {
616 return new ash::FirstRunHelperImpl;
617 }
618
SetCursorCompositingEnabled(bool enabled)619 void Shell::SetCursorCompositingEnabled(bool enabled) {
620 display_controller_->cursor_window_controller()->SetCursorCompositingEnabled(
621 enabled);
622 native_cursor_manager_->SetNativeCursorEnabled(!enabled);
623 }
624 #endif // defined(OS_CHROMEOS)
625
DoInitialWorkspaceAnimation()626 void Shell::DoInitialWorkspaceAnimation() {
627 return GetPrimaryRootWindowController()->workspace_controller()->
628 DoInitialAnimation();
629 }
630
631 ////////////////////////////////////////////////////////////////////////////////
632 // Shell, private:
633
Shell(ShellDelegate * delegate)634 Shell::Shell(ShellDelegate* delegate)
635 : target_root_window_(NULL),
636 scoped_target_root_window_(NULL),
637 delegate_(delegate),
638 window_positioner_(new WindowPositioner),
639 activation_client_(NULL),
640 accelerometer_controller_(new AccelerometerController()),
641 #if defined(OS_CHROMEOS)
642 display_configurator_(new ui::DisplayConfigurator()),
643 #endif // defined(OS_CHROMEOS)
644 native_cursor_manager_(new AshNativeCursorManager),
645 cursor_manager_(
646 scoped_ptr< ::wm::NativeCursorManager>(native_cursor_manager_)),
647 simulate_modal_window_open_for_testing_(false),
648 is_touch_hud_projection_enabled_(false) {
649 DCHECK(delegate_.get());
650 gpu_support_.reset(delegate_->CreateGPUSupport());
651 display_manager_.reset(new DisplayManager);
652 display_controller_.reset(new DisplayController);
653 #if defined(OS_CHROMEOS) && defined(USE_X11)
654 user_metrics_recorder_.reset(new UserMetricsRecorder);
655 #endif // defined(OS_CHROMEOS)
656
657 #if defined(OS_CHROMEOS)
658 PowerStatus::Initialize();
659 #endif
660 }
661
~Shell()662 Shell::~Shell() {
663 TRACE_EVENT0("shutdown", "ash::Shell::Destructor");
664
665 delegate_->PreShutdown();
666
667 views::FocusManagerFactory::Install(NULL);
668
669 // Remove the focus from any window. This will prevent overhead and side
670 // effects (e.g. crashes) from changing focus during shutdown.
671 // See bug crbug.com/134502.
672 aura::client::GetFocusClient(GetPrimaryRootWindow())->FocusWindow(NULL);
673
674 // Please keep in same order as in Init() because it's easy to miss one.
675 if (window_modality_controller_)
676 window_modality_controller_.reset();
677 #if defined(OS_CHROMEOS) && defined(USE_X11)
678 RemovePreTargetHandler(magnifier_key_scroll_handler_.get());
679 magnifier_key_scroll_handler_.reset();
680
681 RemovePreTargetHandler(speech_feedback_handler_.get());
682 speech_feedback_handler_.reset();
683 #endif
684 RemovePreTargetHandler(user_activity_detector_.get());
685 RemovePreTargetHandler(overlay_filter_.get());
686 RemovePreTargetHandler(input_method_filter_.get());
687 RemovePreTargetHandler(accelerator_filter_.get());
688 RemovePreTargetHandler(event_transformation_handler_.get());
689 RemovePreTargetHandler(toplevel_window_event_handler_.get());
690 RemovePostTargetHandler(toplevel_window_event_handler_.get());
691 RemovePreTargetHandler(system_gesture_filter_.get());
692 RemovePreTargetHandler(keyboard_metrics_filter_.get());
693 RemovePreTargetHandler(mouse_cursor_filter_.get());
694
695 // TooltipController is deleted with the Shell so removing its references.
696 RemovePreTargetHandler(tooltip_controller_.get());
697
698 // Destroy maximize mode controller early on since it has some observers which
699 // need to be removed.
700 maximize_mode_controller_->Shutdown();
701 maximize_mode_controller_.reset();
702
703 // AppList needs to be released before shelf layout manager, which is
704 // destroyed with shelf container in the loop below. However, app list
705 // container is now on top of shelf container and released after it.
706 // TODO(xiyuan): Move it back when app list container is no longer needed.
707 app_list_controller_.reset();
708
709 #if defined(OS_CHROMEOS)
710 // Destroy the LastWindowClosedLogoutReminder before the
711 // LogoutConfirmationController.
712 last_window_closed_logout_reminder_.reset();
713
714 // Destroy the LogoutConfirmationController before the SystemTrayDelegate.
715 logout_confirmation_controller_.reset();
716 #endif
717
718 // Destroy SystemTrayDelegate before destroying the status area(s).
719 system_tray_delegate_->Shutdown();
720 system_tray_delegate_.reset();
721
722 locale_notification_controller_.reset();
723
724 // Drag-and-drop must be canceled prior to close all windows.
725 drag_drop_controller_.reset();
726
727 // Controllers who have WindowObserver added must be deleted
728 // before |display_controller_| is deleted.
729
730 #if defined(OS_CHROMEOS)
731 // VideoActivityNotifier must be deleted before |video_detector_| is
732 // deleted because it's observing video activity through
733 // VideoDetectorObserver interface.
734 video_activity_notifier_.reset();
735 #endif // defined(OS_CHROMEOS)
736 video_detector_.reset();
737 high_contrast_controller_.reset();
738
739 shadow_controller_.reset();
740 resize_shadow_controller_.reset();
741
742 window_cycle_controller_.reset();
743 window_selector_controller_.reset();
744 mru_window_tracker_.reset();
745
746 // |shelf_window_watcher_| has a weak pointer to |shelf_Model_|
747 // and has window observers.
748 shelf_window_watcher_.reset();
749
750 // Destroy all child windows including widgets.
751 display_controller_->CloseChildWindows();
752 display_controller_->CloseNonDesktopDisplay();
753
754 // Chrome implementation of shelf delegate depends on FocusClient,
755 // so must be deleted before |focus_client_|.
756 shelf_delegate_.reset();
757 focus_client_.reset();
758
759 // Destroy SystemTrayNotifier after destroying SystemTray as TrayItems
760 // needs to remove observers from it.
761 system_tray_notifier_.reset();
762
763 // These need a valid Shell instance to clean up properly, so explicitly
764 // delete them before invalidating the instance.
765 // Alphabetical. TODO(oshima): sort.
766 magnification_controller_.reset();
767 partial_magnification_controller_.reset();
768 tooltip_controller_.reset();
769 event_client_.reset();
770 nested_accelerator_controller_.reset();
771 toplevel_window_event_handler_.reset();
772 visibility_controller_.reset();
773 // |shelf_item_delegate_manager_| observes |shelf_model_|. It must be
774 // destroyed before |shelf_model_| is destroyed.
775 shelf_item_delegate_manager_.reset();
776 shelf_model_.reset();
777
778 power_button_controller_.reset();
779 lock_state_controller_.reset();
780
781 #if defined(OS_CHROMEOS)
782 resolution_notification_controller_.reset();
783 #endif
784 desktop_background_controller_.reset();
785 mouse_cursor_filter_.reset();
786
787 #if defined(OS_CHROMEOS) && defined(USE_X11)
788 touch_transformer_controller_.reset();
789 #endif // defined(OS_CHROMEOS) && defined(USE_X11)
790
791 // This also deletes all RootWindows. Note that we invoke Shutdown() on
792 // DisplayController before resetting |display_controller_|, since destruction
793 // of its owned RootWindowControllers relies on the value.
794 display_manager_->CreateScreenForShutdown();
795 display_controller_->Shutdown();
796 display_controller_.reset();
797 virtual_keyboard_controller_.reset();
798 screen_position_controller_.reset();
799 accessibility_delegate_.reset();
800 new_window_delegate_.reset();
801 media_delegate_.reset();
802
803 keyboard::KeyboardController::ResetInstance(NULL);
804
805 #if defined(OS_CHROMEOS)
806 if (display_change_observer_)
807 display_configurator_->RemoveObserver(display_change_observer_.get());
808 if (display_configurator_animation_)
809 display_configurator_->RemoveObserver(
810 display_configurator_animation_.get());
811 if (display_error_observer_)
812 display_configurator_->RemoveObserver(display_error_observer_.get());
813 if (projecting_observer_)
814 display_configurator_->RemoveObserver(projecting_observer_.get());
815 display_change_observer_.reset();
816 #endif // defined(OS_CHROMEOS)
817
818 #if defined(OS_CHROMEOS)
819 PowerStatus::Shutdown();
820 #endif
821
822 DCHECK(instance_ == this);
823 instance_ = NULL;
824 }
825
Init(const ShellInitParams & init_params)826 void Shell::Init(const ShellInitParams& init_params) {
827 delegate_->PreInit();
828 bool display_initialized = display_manager_->InitFromCommandLine();
829 #if defined(OS_CHROMEOS)
830 display_configurator_->Init(!gpu_support_->IsPanelFittingDisabled());
831 display_configurator_animation_.reset(new DisplayConfiguratorAnimation());
832 display_configurator_->AddObserver(display_configurator_animation_.get());
833
834 projecting_observer_.reset(new ProjectingObserver());
835 display_configurator_->AddObserver(projecting_observer_.get());
836
837 if (!display_initialized && base::SysInfo::IsRunningOnChromeOS()) {
838 display_change_observer_.reset(new DisplayChangeObserver);
839 // Register |display_change_observer_| first so that the rest of
840 // observer gets invoked after the root windows are configured.
841 display_configurator_->AddObserver(display_change_observer_.get());
842 display_error_observer_.reset(new DisplayErrorObserver());
843 display_configurator_->AddObserver(display_error_observer_.get());
844 display_configurator_->set_state_controller(display_change_observer_.get());
845 display_configurator_->set_mirroring_controller(display_manager_.get());
846 display_configurator_->ForceInitialConfigure(
847 delegate_->IsFirstRunAfterBoot() ? kChromeOsBootColor : 0);
848 display_initialized = true;
849 }
850 #endif // defined(OS_CHROMEOS)
851 if (!display_initialized)
852 display_manager_->InitDefaultDisplay();
853
854 display_manager_->InitFontParams();
855
856 // Install the custom factory first so that views::FocusManagers for Tray,
857 // Shelf, and WallPaper could be created by the factory.
858 views::FocusManagerFactory::Install(new AshFocusManagerFactory);
859
860 aura::Env::CreateInstance(true);
861 aura::Env::GetInstance()->set_context_factory(init_params.context_factory);
862
863 // The WindowModalityController needs to be at the front of the input event
864 // pretarget handler list to ensure that it processes input events when modal
865 // windows are active.
866 window_modality_controller_.reset(
867 new ::wm::WindowModalityController(this));
868
869 env_filter_.reset(new ::wm::CompoundEventFilter);
870 AddPreTargetHandler(env_filter_.get());
871
872 ::wm::FocusController* focus_controller =
873 new ::wm::FocusController(new wm::AshFocusRules);
874 focus_client_.reset(focus_controller);
875 activation_client_ = focus_controller;
876 activation_client_->AddObserver(this);
877 focus_cycler_.reset(new FocusCycler());
878
879 screen_position_controller_.reset(new ScreenPositionController);
880
881 display_controller_->Start();
882 display_controller_->CreatePrimaryHost(
883 ShellInitParamsToAshWindowTreeHostInitParams(init_params));
884 virtual_keyboard_controller_.reset(new VirtualKeyboardController);
885 aura::Window* root_window = display_controller_->GetPrimaryRootWindow();
886 target_root_window_ = root_window;
887
888 #if defined(OS_CHROMEOS)
889 resolution_notification_controller_.reset(
890 new ResolutionNotificationController);
891 #endif
892
893 cursor_manager_.SetDisplay(GetScreen()->GetPrimaryDisplay());
894
895 nested_accelerator_controller_.reset(
896 new ::wm::NestedAcceleratorController(new NestedAcceleratorDelegate));
897 accelerator_controller_.reset(new AcceleratorController);
898 maximize_mode_controller_.reset(new MaximizeModeController());
899
900 #if defined(OS_CHROMEOS) && defined(USE_X11)
901 magnifier_key_scroll_handler_ = MagnifierKeyScroller::CreateHandler().Pass();
902 AddPreTargetHandler(magnifier_key_scroll_handler_.get());
903 speech_feedback_handler_ = SpokenFeedbackToggler::CreateHandler().Pass();
904 AddPreTargetHandler(speech_feedback_handler_.get());
905 #endif
906
907 // The order in which event filters are added is significant.
908
909 // wm::UserActivityDetector passes events to observers, so let them get
910 // rewritten first.
911 user_activity_detector_.reset(new ::wm::UserActivityDetector);
912 AddPreTargetHandler(user_activity_detector_.get());
913
914 overlay_filter_.reset(new OverlayEventFilter);
915 AddPreTargetHandler(overlay_filter_.get());
916 AddShellObserver(overlay_filter_.get());
917
918 input_method_filter_.reset(new ::wm::InputMethodEventFilter(
919 root_window->GetHost()->GetAcceleratedWidget()));
920 AddPreTargetHandler(input_method_filter_.get());
921
922 accelerator_filter_.reset(new ::wm::AcceleratorFilter(
923 scoped_ptr< ::wm::AcceleratorDelegate>(new AcceleratorDelegate).Pass()));
924 AddPreTargetHandler(accelerator_filter_.get());
925
926 event_transformation_handler_.reset(new EventTransformationHandler);
927 AddPreTargetHandler(event_transformation_handler_.get());
928
929 toplevel_window_event_handler_.reset(new ToplevelWindowEventHandler);
930
931 system_gesture_filter_.reset(new SystemGestureEventFilter);
932 AddPreTargetHandler(system_gesture_filter_.get());
933
934 keyboard_metrics_filter_.reset(new KeyboardUMAEventFilter);
935 AddPreTargetHandler(keyboard_metrics_filter_.get());
936
937 // The keyboard system must be initialized before the RootWindowController is
938 // created.
939 #if defined(OS_CHROMEOS)
940 keyboard::InitializeKeyboard();
941 #endif
942
943 #if defined(OS_CHROMEOS)
944 sticky_keys_controller_.reset(new StickyKeysController);
945 #endif
946
947 lock_state_controller_.reset(new LockStateController);
948 power_button_controller_.reset(new PowerButtonController(
949 lock_state_controller_.get()));
950 #if defined(OS_CHROMEOS)
951 // Pass the initial display state to PowerButtonController.
952 power_button_controller_->OnDisplayModeChanged(
953 display_configurator_->cached_displays());
954 #endif
955 AddShellObserver(lock_state_controller_.get());
956
957 drag_drop_controller_.reset(new DragDropController);
958 mouse_cursor_filter_.reset(new MouseCursorEventFilter());
959 PrependPreTargetHandler(mouse_cursor_filter_.get());
960
961 // Create Controllers that may need root window.
962 // TODO(oshima): Move as many controllers before creating
963 // RootWindowController as possible.
964 visibility_controller_.reset(new AshVisibilityController);
965
966 magnification_controller_.reset(
967 MagnificationController::CreateInstance());
968 mru_window_tracker_.reset(new MruWindowTracker(activation_client_));
969
970 partial_magnification_controller_.reset(
971 new PartialMagnificationController());
972
973 autoclick_controller_.reset(AutoclickController::CreateInstance());
974
975 high_contrast_controller_.reset(new HighContrastController);
976 video_detector_.reset(new VideoDetector);
977 window_selector_controller_.reset(new WindowSelectorController());
978 window_cycle_controller_.reset(new WindowCycleController());
979
980 tooltip_controller_.reset(
981 new views::corewm::TooltipController(
982 scoped_ptr<views::corewm::Tooltip>(
983 new views::corewm::TooltipAura(gfx::SCREEN_TYPE_ALTERNATE))));
984 AddPreTargetHandler(tooltip_controller_.get());
985
986 event_client_.reset(new EventClientImpl);
987
988 // This controller needs to be set before SetupManagedWindowMode.
989 desktop_background_controller_.reset(new DesktopBackgroundController());
990 user_wallpaper_delegate_.reset(delegate_->CreateUserWallpaperDelegate());
991
992 session_state_delegate_.reset(delegate_->CreateSessionStateDelegate());
993 accessibility_delegate_.reset(delegate_->CreateAccessibilityDelegate());
994 new_window_delegate_.reset(delegate_->CreateNewWindowDelegate());
995 media_delegate_.reset(delegate_->CreateMediaDelegate());
996
997 resize_shadow_controller_.reset(new ResizeShadowController());
998 shadow_controller_.reset(
999 new ::wm::ShadowController(activation_client_));
1000
1001 // Create system_tray_notifier_ before the delegate.
1002 system_tray_notifier_.reset(new ash::SystemTrayNotifier());
1003
1004 // Initialize system_tray_delegate_ before initializing StatusAreaWidget.
1005 system_tray_delegate_.reset(delegate()->CreateSystemTrayDelegate());
1006 DCHECK(system_tray_delegate_.get());
1007
1008 locale_notification_controller_.reset(new LocaleNotificationController);
1009
1010 // Initialize system_tray_delegate_ after StatusAreaWidget is created.
1011 system_tray_delegate_->Initialize();
1012
1013 #if defined(OS_CHROMEOS)
1014 // Create the LogoutConfirmationController after the SystemTrayDelegate.
1015 logout_confirmation_controller_.reset(new LogoutConfirmationController(
1016 base::Bind(&SystemTrayDelegate::SignOut,
1017 base::Unretained(system_tray_delegate_.get()))));
1018 #endif
1019
1020 #if defined(OS_CHROMEOS) && defined(USE_X11)
1021 // Create TouchTransformerController before DisplayController::InitDisplays()
1022 // since TouchTransformerController listens on
1023 // DisplayController::Observer::OnDisplaysInitialized().
1024 touch_transformer_controller_.reset(new TouchTransformerController());
1025 #endif // defined(OS_CHROMEOS) && defined(USE_X11)
1026
1027 display_controller_->InitDisplays();
1028
1029 // It needs to be created after RootWindowController has been created
1030 // (which calls OnWindowResized has been called, otherwise the
1031 // widget will not paint when restoring after a browser crash. Also it needs
1032 // to be created after InitSecondaryDisplays() to initialize the wallpapers in
1033 // the correct size.
1034 user_wallpaper_delegate_->InitializeWallpaper();
1035
1036 if (initially_hide_cursor_)
1037 cursor_manager_.HideCursor();
1038 cursor_manager_.SetCursor(ui::kCursorPointer);
1039
1040 #if defined(OS_CHROMEOS)
1041 // Set accelerator controller delegates.
1042 accelerator_controller_->SetBrightnessControlDelegate(
1043 scoped_ptr<ash::BrightnessControlDelegate>(
1044 new ash::system::BrightnessControllerChromeos).Pass());
1045
1046 power_event_observer_.reset(new PowerEventObserver());
1047 user_activity_notifier_.reset(
1048 new ui::UserActivityPowerManagerNotifier(user_activity_detector_.get()));
1049 video_activity_notifier_.reset(
1050 new VideoActivityNotifier(video_detector_.get()));
1051 bluetooth_notification_controller_.reset(new BluetoothNotificationController);
1052 last_window_closed_logout_reminder_.reset(new LastWindowClosedLogoutReminder);
1053 #endif
1054
1055 weak_display_manager_factory_.reset(
1056 new base::WeakPtrFactory<DisplayManager>(display_manager_.get()));
1057 // The compositor thread and main message loop have to be running in
1058 // order to create mirror window. Run it after the main message loop
1059 // is started.
1060 base::MessageLoopForUI::current()->PostTask(
1061 FROM_HERE,
1062 base::Bind(&DisplayManager::CreateMirrorWindowIfAny,
1063 weak_display_manager_factory_->GetWeakPtr()));
1064 }
1065
InitKeyboard()1066 void Shell::InitKeyboard() {
1067 if (keyboard::IsKeyboardEnabled()) {
1068 if (keyboard::KeyboardController::GetInstance()) {
1069 RootWindowControllerList controllers = GetAllRootWindowControllers();
1070 for (RootWindowControllerList::iterator iter = controllers.begin();
1071 iter != controllers.end(); ++iter) {
1072 (*iter)->DeactivateKeyboard(
1073 keyboard::KeyboardController::GetInstance());
1074 }
1075 }
1076 keyboard::KeyboardControllerProxy* proxy =
1077 delegate_->CreateKeyboardControllerProxy();
1078 keyboard::KeyboardController::ResetInstance(
1079 new keyboard::KeyboardController(proxy));
1080 }
1081 }
1082
InitRootWindow(aura::Window * root_window)1083 void Shell::InitRootWindow(aura::Window* root_window) {
1084 DCHECK(activation_client_);
1085 DCHECK(visibility_controller_.get());
1086 DCHECK(drag_drop_controller_.get());
1087
1088 aura::client::SetFocusClient(root_window, focus_client_.get());
1089 input_method_filter_->SetInputMethodPropertyInRootWindow(root_window);
1090 aura::client::SetActivationClient(root_window, activation_client_);
1091 ::wm::FocusController* focus_controller =
1092 static_cast< ::wm::FocusController*>(activation_client_);
1093 root_window->AddPreTargetHandler(focus_controller);
1094 aura::client::SetVisibilityClient(root_window, visibility_controller_.get());
1095 aura::client::SetDragDropClient(root_window, drag_drop_controller_.get());
1096 aura::client::SetScreenPositionClient(root_window,
1097 screen_position_controller_.get());
1098 aura::client::SetCursorClient(root_window, &cursor_manager_);
1099 aura::client::SetTooltipClient(root_window, tooltip_controller_.get());
1100 aura::client::SetEventClient(root_window, event_client_.get());
1101
1102 aura::client::SetWindowMoveClient(root_window,
1103 toplevel_window_event_handler_.get());
1104 root_window->AddPreTargetHandler(toplevel_window_event_handler_.get());
1105 root_window->AddPostTargetHandler(toplevel_window_event_handler_.get());
1106
1107 if (nested_accelerator_controller_) {
1108 aura::client::SetDispatcherClient(root_window,
1109 nested_accelerator_controller_.get());
1110 }
1111 }
1112
CanWindowReceiveEvents(aura::Window * window)1113 bool Shell::CanWindowReceiveEvents(aura::Window* window) {
1114 RootWindowControllerList controllers = GetAllRootWindowControllers();
1115 for (RootWindowControllerList::iterator iter = controllers.begin();
1116 iter != controllers.end(); ++iter) {
1117 SystemModalContainerLayoutManager* layout_manager =
1118 (*iter)->GetSystemModalLayoutManager(window);
1119 if (layout_manager && layout_manager->CanWindowReceiveEvents(window))
1120 return true;
1121 // Allow events to fall through to the virtual keyboard even if displaying
1122 // a system modal dialog.
1123 if ((*iter)->IsVirtualKeyboardWindow(window))
1124 return true;
1125 }
1126
1127 return false;
1128 }
1129
1130 ////////////////////////////////////////////////////////////////////////////////
1131 // Shell, ui::EventTarget overrides:
1132
CanAcceptEvent(const ui::Event & event)1133 bool Shell::CanAcceptEvent(const ui::Event& event) {
1134 return true;
1135 }
1136
GetParentTarget()1137 ui::EventTarget* Shell::GetParentTarget() {
1138 return aura::Env::GetInstance();
1139 }
1140
GetChildIterator() const1141 scoped_ptr<ui::EventTargetIterator> Shell::GetChildIterator() const {
1142 return scoped_ptr<ui::EventTargetIterator>();
1143 }
1144
GetEventTargeter()1145 ui::EventTargeter* Shell::GetEventTargeter() {
1146 NOTREACHED();
1147 return NULL;
1148 }
1149
OnEvent(ui::Event * event)1150 void Shell::OnEvent(ui::Event* event) {
1151 }
1152
1153 ////////////////////////////////////////////////////////////////////////////////
1154 // Shell, aura::client::ActivationChangeObserver implementation:
1155
OnWindowActivated(aura::Window * gained_active,aura::Window * lost_active)1156 void Shell::OnWindowActivated(aura::Window* gained_active,
1157 aura::Window* lost_active) {
1158 if (gained_active)
1159 target_root_window_ = gained_active->GetRootWindow();
1160 }
1161
1162 } // namespace ash
1163