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_filter.h"
12 #include "ash/accelerators/focus_manager_factory.h"
13 #include "ash/accelerators/nested_dispatcher_controller.h"
14 #include "ash/ash_switches.h"
15 #include "ash/autoclick/autoclick_controller.h"
16 #include "ash/caps_lock_delegate.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/display_controller.h"
21 #include "ash/display/display_manager.h"
22 #include "ash/display/event_transformation_handler.h"
23 #include "ash/display/mouse_cursor_event_filter.h"
24 #include "ash/display/resolution_notification_controller.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/high_contrast/high_contrast_controller.h"
31 #include "ash/host/root_window_host_factory.h"
32 #include "ash/keyboard_uma_event_filter.h"
33 #include "ash/magnifier/magnification_controller.h"
34 #include "ash/magnifier/partial_magnification_controller.h"
35 #include "ash/media_delegate.h"
36 #include "ash/new_window_delegate.h"
37 #include "ash/root_window_controller.h"
38 #include "ash/screen_ash.h"
39 #include "ash/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_window_ids.h"
51 #include "ash/system/locale/locale_notification_controller.h"
52 #include "ash/system/status_area_widget.h"
53 #include "ash/system/tray/system_tray_delegate.h"
54 #include "ash/system/tray/system_tray_notifier.h"
55 #include "ash/wm/app_list_controller.h"
56 #include "ash/wm/ash_focus_rules.h"
57 #include "ash/wm/ash_native_cursor_manager.h"
58 #include "ash/wm/base_layout_manager.h"
59 #include "ash/wm/coordinate_conversion.h"
60 #include "ash/wm/custom_frame_view_ash.h"
61 #include "ash/wm/event_client_impl.h"
62 #include "ash/wm/event_rewriter_event_filter.h"
63 #include "ash/wm/lock_state_controller.h"
64 #include "ash/wm/mru_window_tracker.h"
65 #include "ash/wm/overlay_event_filter.h"
66 #include "ash/wm/overview/window_selector_controller.h"
67 #include "ash/wm/power_button_controller.h"
68 #include "ash/wm/resize_shadow_controller.h"
69 #include "ash/wm/root_window_layout_manager.h"
70 #include "ash/wm/screen_dimmer.h"
71 #include "ash/wm/system_gesture_event_filter.h"
72 #include "ash/wm/system_modal_container_event_filter.h"
73 #include "ash/wm/system_modal_container_layout_manager.h"
74 #include "ash/wm/user_activity_detector.h"
75 #include "ash/wm/video_detector.h"
76 #include "ash/wm/window_animations.h"
77 #include "ash/wm/window_cycle_controller.h"
78 #include "ash/wm/window_positioner.h"
79 #include "ash/wm/window_properties.h"
80 #include "ash/wm/window_util.h"
81 #include "ash/wm/workspace_controller.h"
82 #include "base/bind.h"
83 #include "base/command_line.h"
84 #include "base/debug/leak_annotations.h"
85 #include "base/debug/trace_event.h"
86 #include "content/public/browser/user_metrics.h"
87 #include "ui/aura/client/aura_constants.h"
88 #include "ui/aura/client/user_action_client.h"
89 #include "ui/aura/env.h"
90 #include "ui/aura/layout_manager.h"
91 #include "ui/aura/root_window.h"
92 #include "ui/aura/window.h"
93 #include "ui/base/ui_base_switches.h"
94 #include "ui/compositor/layer.h"
95 #include "ui/compositor/layer_animator.h"
96 #include "ui/events/event_target_iterator.h"
97 #include "ui/gfx/display.h"
98 #include "ui/gfx/image/image_skia.h"
99 #include "ui/gfx/screen.h"
100 #include "ui/gfx/size.h"
101 #include "ui/keyboard/keyboard.h"
102 #include "ui/keyboard/keyboard_controller.h"
103 #include "ui/keyboard/keyboard_switches.h"
104 #include "ui/keyboard/keyboard_util.h"
105 #include "ui/message_center/message_center.h"
106 #include "ui/views/corewm/compound_event_filter.h"
107 #include "ui/views/corewm/corewm_switches.h"
108 #include "ui/views/corewm/focus_controller.h"
109 #include "ui/views/corewm/input_method_event_filter.h"
110 #include "ui/views/corewm/shadow_controller.h"
111 #include "ui/views/corewm/tooltip_aura.h"
112 #include "ui/views/corewm/tooltip_controller.h"
113 #include "ui/views/corewm/visibility_controller.h"
114 #include "ui/views/corewm/window_modality_controller.h"
115 #include "ui/views/focus/focus_manager_factory.h"
116 #include "ui/views/widget/native_widget_aura.h"
117 #include "ui/views/widget/widget.h"
118
119 #if defined(OS_CHROMEOS)
120 #if defined(USE_X11)
121 #include "ash/ash_constants.h"
122 #include "ash/display/display_change_observer_chromeos.h"
123 #include "ash/display/display_error_observer_chromeos.h"
124 #include "ash/display/output_configurator_animation.h"
125 #include "base/message_loop/message_pump_x11.h"
126 #include "base/sys_info.h"
127 #include "chromeos/display/output_configurator.h"
128 #include "content/public/browser/gpu_data_manager.h"
129 #include "gpu/config/gpu_feature_type.h"
130 #endif // defined(USE_X11)
131 #include "ash/system/chromeos/brightness/brightness_controller_chromeos.h"
132 #include "ash/system/chromeos/power/power_event_observer.h"
133 #include "ash/system/chromeos/power/power_status.h"
134 #include "ash/system/chromeos/power/user_activity_notifier.h"
135 #include "ash/system/chromeos/power/video_activity_notifier.h"
136 #include "ash/wm/sticky_keys.h"
137 #endif // defined(OS_CHROMEOS)
138
139 namespace ash {
140
141 namespace {
142
143 using aura::Window;
144 using views::Widget;
145
146 // A Corewm VisibilityController subclass that calls the Ash animation routine
147 // so we can pick up our extended animations. See ash/wm/window_animations.h.
148 class AshVisibilityController : public views::corewm::VisibilityController {
149 public:
AshVisibilityController()150 AshVisibilityController() {}
~AshVisibilityController()151 virtual ~AshVisibilityController() {}
152
153 private:
154 // Overridden from views::corewm::VisibilityController:
CallAnimateOnChildWindowVisibilityChanged(aura::Window * window,bool visible)155 virtual bool CallAnimateOnChildWindowVisibilityChanged(
156 aura::Window* window,
157 bool visible) OVERRIDE {
158 return AnimateOnChildWindowVisibilityChanged(window, visible);
159 }
160
161 DISALLOW_COPY_AND_ASSIGN(AshVisibilityController);
162 };
163
164 } // namespace
165
166 // static
167 Shell* Shell::instance_ = NULL;
168 // static
169 bool Shell::initially_hide_cursor_ = false;
170
171 ////////////////////////////////////////////////////////////////////////////////
172 // Shell, public:
173
174 // static
CreateInstance(ShellDelegate * delegate)175 Shell* Shell::CreateInstance(ShellDelegate* delegate) {
176 CHECK(!instance_);
177 instance_ = new Shell(delegate);
178 instance_->Init();
179 return instance_;
180 }
181
182 // static
GetInstance()183 Shell* Shell::GetInstance() {
184 DCHECK(instance_);
185 return instance_;
186 }
187
188 // static
HasInstance()189 bool Shell::HasInstance() {
190 return !!instance_;
191 }
192
193 // static
DeleteInstance()194 void Shell::DeleteInstance() {
195 delete instance_;
196 instance_ = NULL;
197 }
198
199 // static
GetPrimaryRootWindowController()200 internal::RootWindowController* Shell::GetPrimaryRootWindowController() {
201 return internal::GetRootWindowController(GetPrimaryRootWindow());
202 }
203
204 // static
GetAllRootWindowControllers()205 Shell::RootWindowControllerList Shell::GetAllRootWindowControllers() {
206 return Shell::GetInstance()->display_controller()->
207 GetAllRootWindowControllers();
208 }
209
210 // static
GetPrimaryRootWindow()211 aura::Window* Shell::GetPrimaryRootWindow() {
212 return GetInstance()->display_controller()->GetPrimaryRootWindow();
213 }
214
215 // static
GetTargetRootWindow()216 aura::Window* Shell::GetTargetRootWindow() {
217 Shell* shell = GetInstance();
218 if (shell->scoped_target_root_window_)
219 return shell->scoped_target_root_window_;
220 return shell->target_root_window_;
221 }
222
223 // static
GetScreen()224 gfx::Screen* Shell::GetScreen() {
225 return gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE);
226 }
227
228 // static
GetAllRootWindows()229 aura::Window::Windows Shell::GetAllRootWindows() {
230 return Shell::GetInstance()->display_controller()->
231 GetAllRootWindows();
232 }
233
234 // static
GetContainer(aura::Window * root_window,int container_id)235 aura::Window* Shell::GetContainer(aura::Window* root_window,
236 int container_id) {
237 return root_window->GetChildById(container_id);
238 }
239
240 // static
GetContainer(const aura::Window * root_window,int container_id)241 const aura::Window* Shell::GetContainer(const aura::Window* root_window,
242 int container_id) {
243 return root_window->GetChildById(container_id);
244 }
245
246 // static
GetContainersFromAllRootWindows(int container_id,aura::Window * priority_root)247 std::vector<aura::Window*> Shell::GetContainersFromAllRootWindows(
248 int container_id,
249 aura::Window* priority_root) {
250 std::vector<aura::Window*> containers;
251 aura::Window::Windows root_windows = GetAllRootWindows();
252 for (aura::Window::Windows::const_iterator it = root_windows.begin();
253 it != root_windows.end(); ++it) {
254 aura::Window* container = (*it)->GetChildById(container_id);
255 if (container) {
256 if (priority_root && priority_root->Contains(container))
257 containers.insert(containers.begin(), container);
258 else
259 containers.push_back(container);
260 }
261 }
262 return containers;
263 }
264
ShowContextMenu(const gfx::Point & location_in_screen,ui::MenuSourceType source_type)265 void Shell::ShowContextMenu(const gfx::Point& location_in_screen,
266 ui::MenuSourceType source_type) {
267 // No context menus if there is no session with an active user.
268 if (!session_state_delegate_->NumberOfLoggedInUsers())
269 return;
270 // No context menus when screen is locked.
271 if (session_state_delegate_->IsScreenLocked())
272 return;
273
274 aura::Window* root =
275 wm::GetRootWindowMatching(gfx::Rect(location_in_screen, gfx::Size()));
276 internal::GetRootWindowController(root)->
277 ShowContextMenu(location_in_screen, source_type);
278 }
279
ToggleAppList(aura::Window * window)280 void Shell::ToggleAppList(aura::Window* window) {
281 // If the context window is not given, show it on the target root window.
282 if (!window)
283 window = GetTargetRootWindow();
284 if (!app_list_controller_)
285 app_list_controller_.reset(new internal::AppListController);
286 app_list_controller_->SetVisible(!app_list_controller_->IsVisible(), window);
287 }
288
GetAppListTargetVisibility() const289 bool Shell::GetAppListTargetVisibility() const {
290 return app_list_controller_.get() &&
291 app_list_controller_->GetTargetVisibility();
292 }
293
GetAppListWindow()294 aura::Window* Shell::GetAppListWindow() {
295 return app_list_controller_.get() ? app_list_controller_->GetWindow() : NULL;
296 }
297
GetAppListView()298 app_list::AppListView* Shell::GetAppListView() {
299 return app_list_controller_.get() ? app_list_controller_->GetView() : NULL;
300 }
301
IsSystemModalWindowOpen() const302 bool Shell::IsSystemModalWindowOpen() const {
303 if (simulate_modal_window_open_for_testing_)
304 return true;
305 const std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
306 internal::kShellWindowId_SystemModalContainer, NULL);
307 for (std::vector<aura::Window*>::const_iterator cit = containers.begin();
308 cit != containers.end(); ++cit) {
309 for (aura::Window::Windows::const_iterator wit = (*cit)->children().begin();
310 wit != (*cit)->children().end(); ++wit) {
311 if ((*wit)->GetProperty(aura::client::kModalKey) ==
312 ui::MODAL_TYPE_SYSTEM && (*wit)->TargetVisibility()) {
313 return true;
314 }
315 }
316 }
317 return false;
318 }
319
CreateDefaultNonClientFrameView(views::Widget * widget)320 views::NonClientFrameView* Shell::CreateDefaultNonClientFrameView(
321 views::Widget* widget) {
322 // Use translucent-style window frames for dialogs.
323 return new CustomFrameViewAsh(widget);
324 }
325
RotateFocus(Direction direction)326 void Shell::RotateFocus(Direction direction) {
327 focus_cycler_->RotateFocus(
328 direction == FORWARD ? internal::FocusCycler::FORWARD :
329 internal::FocusCycler::BACKWARD);
330 }
331
SetDisplayWorkAreaInsets(Window * contains,const gfx::Insets & insets)332 void Shell::SetDisplayWorkAreaInsets(Window* contains,
333 const gfx::Insets& insets) {
334 if (!display_controller_->UpdateWorkAreaOfDisplayNearestWindow(
335 contains, insets)) {
336 return;
337 }
338 FOR_EACH_OBSERVER(ShellObserver, observers_,
339 OnDisplayWorkAreaInsetsChanged());
340 }
341
OnLoginStateChanged(user::LoginStatus status)342 void Shell::OnLoginStateChanged(user::LoginStatus status) {
343 FOR_EACH_OBSERVER(ShellObserver, observers_, OnLoginStateChanged(status));
344 }
345
OnLoginUserProfilePrepared()346 void Shell::OnLoginUserProfilePrepared() {
347 CreateLauncher();
348 CreateKeyboard();
349 }
350
UpdateAfterLoginStatusChange(user::LoginStatus status)351 void Shell::UpdateAfterLoginStatusChange(user::LoginStatus status) {
352 RootWindowControllerList controllers = GetAllRootWindowControllers();
353 for (RootWindowControllerList::iterator iter = controllers.begin();
354 iter != controllers.end(); ++iter)
355 (*iter)->UpdateAfterLoginStatusChange(status);
356 }
357
OnAppTerminating()358 void Shell::OnAppTerminating() {
359 FOR_EACH_OBSERVER(ShellObserver, observers_, OnAppTerminating());
360 }
361
OnLockStateChanged(bool locked)362 void Shell::OnLockStateChanged(bool locked) {
363 FOR_EACH_OBSERVER(ShellObserver, observers_, OnLockStateChanged(locked));
364 #ifndef NDEBUG
365 // Make sure that there is no system modal in Lock layer when unlocked.
366 if (!locked) {
367 std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
368 internal::kShellWindowId_LockSystemModalContainer,
369 GetPrimaryRootWindow());
370 for (std::vector<aura::Window*>::const_iterator iter = containers.begin();
371 iter != containers.end(); ++iter) {
372 DCHECK_EQ(0u, (*iter)->children().size());
373 }
374 }
375 #endif
376 }
377
CreateLauncher()378 void Shell::CreateLauncher() {
379 RootWindowControllerList controllers = GetAllRootWindowControllers();
380 for (RootWindowControllerList::iterator iter = controllers.begin();
381 iter != controllers.end(); ++iter)
382 (*iter)->shelf()->CreateLauncher();
383 }
384
CreateKeyboard()385 void Shell::CreateKeyboard() {
386 // TODO(bshe): Primary root window controller may not be the controller to
387 // attach virtual keyboard. See http://crbug.com/303429
388 InitKeyboard();
389 if (keyboard::IsKeyboardUsabilityExperimentEnabled()) {
390 display_controller()->virtual_keyboard_window_controller()->
391 ActivateKeyboard(keyboard_controller_.get());
392 } else {
393 GetPrimaryRootWindowController()->
394 ActivateKeyboard(keyboard_controller_.get());
395 }
396 }
397
ShowLauncher()398 void Shell::ShowLauncher() {
399 RootWindowControllerList controllers = GetAllRootWindowControllers();
400 for (RootWindowControllerList::iterator iter = controllers.begin();
401 iter != controllers.end(); ++iter)
402 (*iter)->ShowLauncher();
403 }
404
AddShellObserver(ShellObserver * observer)405 void Shell::AddShellObserver(ShellObserver* observer) {
406 observers_.AddObserver(observer);
407 }
408
RemoveShellObserver(ShellObserver * observer)409 void Shell::RemoveShellObserver(ShellObserver* observer) {
410 observers_.RemoveObserver(observer);
411 }
412
UpdateShelfVisibility()413 void Shell::UpdateShelfVisibility() {
414 RootWindowControllerList controllers = GetAllRootWindowControllers();
415 for (RootWindowControllerList::iterator iter = controllers.begin();
416 iter != controllers.end(); ++iter)
417 if ((*iter)->shelf())
418 (*iter)->UpdateShelfVisibility();
419 }
420
SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,aura::Window * root_window)421 void Shell::SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
422 aura::Window* root_window) {
423 ash::internal::ShelfLayoutManager::ForLauncher(root_window)->
424 SetAutoHideBehavior(behavior);
425 }
426
GetShelfAutoHideBehavior(aura::Window * root_window) const427 ShelfAutoHideBehavior Shell::GetShelfAutoHideBehavior(
428 aura::Window* root_window) const {
429 return ash::internal::ShelfLayoutManager::ForLauncher(root_window)->
430 auto_hide_behavior();
431 }
432
SetShelfAlignment(ShelfAlignment alignment,aura::Window * root_window)433 void Shell::SetShelfAlignment(ShelfAlignment alignment,
434 aura::Window* root_window) {
435 if (ash::internal::ShelfLayoutManager::ForLauncher(root_window)->
436 SetAlignment(alignment)) {
437 FOR_EACH_OBSERVER(
438 ShellObserver, observers_, OnShelfAlignmentChanged(root_window));
439 }
440 }
441
GetShelfAlignment(aura::Window * root_window)442 ShelfAlignment Shell::GetShelfAlignment(aura::Window* root_window) {
443 return internal::GetRootWindowController(root_window)->
444 GetShelfLayoutManager()->GetAlignment();
445 }
446
SetDimming(bool should_dim)447 void Shell::SetDimming(bool should_dim) {
448 RootWindowControllerList controllers = GetAllRootWindowControllers();
449 for (RootWindowControllerList::iterator iter = controllers.begin();
450 iter != controllers.end(); ++iter)
451 (*iter)->screen_dimmer()->SetDimming(should_dim);
452 }
453
NotifyFullscreenStateChange(bool is_fullscreen,aura::Window * root_window)454 void Shell::NotifyFullscreenStateChange(bool is_fullscreen,
455 aura::Window* root_window) {
456 FOR_EACH_OBSERVER(ShellObserver, observers_, OnFullscreenStateChanged(
457 is_fullscreen, root_window));
458 }
459
CreateModalBackground(aura::Window * window)460 void Shell::CreateModalBackground(aura::Window* window) {
461 if (!modality_filter_) {
462 modality_filter_.reset(new internal::SystemModalContainerEventFilter(this));
463 AddPreTargetHandler(modality_filter_.get());
464 }
465 RootWindowControllerList controllers = GetAllRootWindowControllers();
466 for (RootWindowControllerList::iterator iter = controllers.begin();
467 iter != controllers.end(); ++iter)
468 (*iter)->GetSystemModalLayoutManager(window)->CreateModalBackground();
469 }
470
OnModalWindowRemoved(aura::Window * removed)471 void Shell::OnModalWindowRemoved(aura::Window* removed) {
472 RootWindowControllerList controllers = GetAllRootWindowControllers();
473 bool activated = false;
474 for (RootWindowControllerList::iterator iter = controllers.begin();
475 iter != controllers.end() && !activated; ++iter) {
476 activated = (*iter)->GetSystemModalLayoutManager(removed)->
477 ActivateNextModalWindow();
478 }
479 if (!activated) {
480 RemovePreTargetHandler(modality_filter_.get());
481 modality_filter_.reset();
482 for (RootWindowControllerList::iterator iter = controllers.begin();
483 iter != controllers.end(); ++iter)
484 (*iter)->GetSystemModalLayoutManager(removed)->DestroyModalBackground();
485 }
486 }
487
GetWebNotificationTray()488 WebNotificationTray* Shell::GetWebNotificationTray() {
489 return GetPrimaryRootWindowController()->shelf()->
490 status_area_widget()->web_notification_tray();
491 }
492
HasPrimaryStatusArea()493 bool Shell::HasPrimaryStatusArea() {
494 ShelfWidget* shelf = GetPrimaryRootWindowController()->shelf();
495 return shelf && shelf->status_area_widget();
496 }
497
GetPrimarySystemTray()498 SystemTray* Shell::GetPrimarySystemTray() {
499 return GetPrimaryRootWindowController()->GetSystemTray();
500 }
501
GetShelfDelegate()502 ShelfDelegate* Shell::GetShelfDelegate() {
503 if (!shelf_delegate_) {
504 shelf_model_.reset(new ShelfModel);
505 // Creates ShelfItemDelegateManager before ShelfDelegate.
506 shelf_item_delegate_manager_.reset(
507 new ShelfItemDelegateManager(shelf_model_.get()));
508
509 shelf_delegate_.reset(delegate_->CreateShelfDelegate(shelf_model_.get()));
510 scoped_ptr<ShelfItemDelegate> controller(
511 new internal::AppListShelfItemDelegate);
512
513 // Finding the shelf model's location of the app list and setting its
514 // ShelfItemDelegate.
515 int app_list_index = shelf_model_->GetItemIndexForType(TYPE_APP_LIST);
516 DCHECK_GE(app_list_index, 0);
517 LauncherID app_list_id = shelf_model_->items()[app_list_index].id;
518 DCHECK(app_list_id);
519 shelf_item_delegate_manager_->SetShelfItemDelegate(app_list_id,
520 controller.Pass());
521 shelf_window_watcher_.reset(new internal::ShelfWindowWatcher(
522 shelf_model_.get(),
523 shelf_item_delegate_manager_.get()));
524 }
525 return shelf_delegate_.get();
526 }
527
SetTouchHudProjectionEnabled(bool enabled)528 void Shell::SetTouchHudProjectionEnabled(bool enabled) {
529 if (is_touch_hud_projection_enabled_ == enabled)
530 return;
531
532 is_touch_hud_projection_enabled_ = enabled;
533 FOR_EACH_OBSERVER(ShellObserver, observers_,
534 OnTouchHudProjectionToggled(enabled));
535 }
536
537 #if defined(OS_CHROMEOS)
CreateFirstRunHelper()538 ash::FirstRunHelper* Shell::CreateFirstRunHelper() {
539 return new ash::FirstRunHelperImpl;
540 }
541 #endif // defined(OS_CHROMEOS)
542
DoInitialWorkspaceAnimation()543 void Shell::DoInitialWorkspaceAnimation() {
544 return GetPrimaryRootWindowController()->workspace_controller()->
545 DoInitialAnimation();
546 }
547
548 ////////////////////////////////////////////////////////////////////////////////
549 // Shell, private:
550
Shell(ShellDelegate * delegate)551 Shell::Shell(ShellDelegate* delegate)
552 : screen_(new ScreenAsh),
553 target_root_window_(NULL),
554 scoped_target_root_window_(NULL),
555 delegate_(delegate),
556 window_positioner_(new WindowPositioner),
557 activation_client_(NULL),
558 #if defined(OS_CHROMEOS) && defined(USE_X11)
559 output_configurator_(new chromeos::OutputConfigurator()),
560 #endif // defined(OS_CHROMEOS) && defined(USE_X11)
561 native_cursor_manager_(new AshNativeCursorManager),
562 cursor_manager_(scoped_ptr<views::corewm::NativeCursorManager>(
563 native_cursor_manager_)),
564 simulate_modal_window_open_for_testing_(false),
565 is_touch_hud_projection_enabled_(false) {
566 DCHECK(delegate_.get());
567 display_manager_.reset(new internal::DisplayManager);
568
569 ANNOTATE_LEAKING_OBJECT_PTR(screen_); // see crbug.com/156466
570 gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_ALTERNATE, screen_);
571 if (!gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE))
572 gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, screen_);
573 display_controller_.reset(new DisplayController);
574 #if defined(OS_CHROMEOS) && defined(USE_X11)
575 bool is_panel_fitting_disabled =
576 content::GpuDataManager::GetInstance()->IsFeatureBlacklisted(
577 gpu::GPU_FEATURE_TYPE_PANEL_FITTING);
578
579 output_configurator_->Init(!is_panel_fitting_disabled);
580 user_metrics_recorder_.reset(new UserMetricsRecorder);
581
582 base::MessagePumpX11::Current()->AddDispatcherForRootWindow(
583 output_configurator());
584 // We can't do this with a root window listener because XI_HierarchyChanged
585 // messages don't have a target window.
586 base::MessagePumpX11::Current()->AddObserver(output_configurator());
587 #endif // defined(OS_CHROMEOS)
588
589 #if defined(OS_CHROMEOS)
590 internal::PowerStatus::Initialize();
591 #endif
592 }
593
~Shell()594 Shell::~Shell() {
595 TRACE_EVENT0("shutdown", "ash::Shell::Destructor");
596
597 views::FocusManagerFactory::Install(NULL);
598
599 // Remove the focus from any window. This will prevent overhead and side
600 // effects (e.g. crashes) from changing focus during shutdown.
601 // See bug crbug.com/134502.
602 aura::client::GetFocusClient(GetPrimaryRootWindow())->FocusWindow(NULL);
603
604 // Please keep in same order as in Init() because it's easy to miss one.
605 if (window_modality_controller_)
606 window_modality_controller_.reset();
607 RemovePreTargetHandler(event_rewriter_filter_.get());
608 RemovePreTargetHandler(user_activity_detector_.get());
609 RemovePreTargetHandler(overlay_filter_.get());
610 RemovePreTargetHandler(input_method_filter_.get());
611 if (mouse_cursor_filter_)
612 RemovePreTargetHandler(mouse_cursor_filter_.get());
613 RemovePreTargetHandler(system_gesture_filter_.get());
614 RemovePreTargetHandler(keyboard_metrics_filter_.get());
615 RemovePreTargetHandler(event_transformation_handler_.get());
616 RemovePreTargetHandler(accelerator_filter_.get());
617
618 // TooltipController is deleted with the Shell so removing its references.
619 RemovePreTargetHandler(tooltip_controller_.get());
620
621 // AppList needs to be released before shelf layout manager, which is
622 // destroyed with launcher container in the loop below. However, app list
623 // container is now on top of launcher container and released after it.
624 // TODO(xiyuan): Move it back when app list container is no longer needed.
625 app_list_controller_.reset();
626
627 // Destroy SystemTrayDelegate before destroying the status area(s).
628 system_tray_delegate_->Shutdown();
629 system_tray_delegate_.reset();
630
631 locale_notification_controller_.reset();
632
633 // Drag-and-drop must be canceled prior to close all windows.
634 drag_drop_controller_.reset();
635
636 // Controllers who have WindowObserver added must be deleted
637 // before |display_controller_| is deleted.
638
639 #if defined(OS_CHROMEOS)
640 // VideoActivityNotifier must be deleted before |video_detector_| is
641 // deleted because it's observing video activity through
642 // VideoDetectorObserver interface.
643 video_activity_notifier_.reset();
644 #endif // defined(OS_CHROMEOS)
645 video_detector_.reset();
646
647 shadow_controller_.reset();
648 resize_shadow_controller_.reset();
649
650 window_selector_controller_.reset();
651 window_cycle_controller_.reset();
652 mru_window_tracker_.reset();
653
654 // |shelf_window_watcher_| has a weak pointer to |shelf_Model_|
655 // and has window observers.
656 shelf_window_watcher_.reset();
657
658 // Destroy all child windows including widgets.
659 display_controller_->CloseChildWindows();
660 display_controller_->CloseNonDesktopDisplay();
661
662 // Chrome implementation of shelf delegate depends on FocusClient,
663 // so must be deleted before |focus_client_|.
664 shelf_delegate_.reset();
665 focus_client_.reset();
666
667 // Destroy SystemTrayNotifier after destroying SystemTray as TrayItems
668 // needs to remove observers from it.
669 system_tray_notifier_.reset();
670
671 // These need a valid Shell instance to clean up properly, so explicitly
672 // delete them before invalidating the instance.
673 // Alphabetical. TODO(oshima): sort.
674 magnification_controller_.reset();
675 partial_magnification_controller_.reset();
676 tooltip_controller_.reset();
677 event_client_.reset();
678 nested_dispatcher_controller_.reset();
679 user_action_client_.reset();
680 visibility_controller_.reset();
681 // |shelf_item_delegate_manager_| observes |shelf_model_|. It must be
682 // destroyed before |shelf_model_| is destroyed.
683 shelf_item_delegate_manager_.reset();
684 shelf_model_.reset();
685
686 power_button_controller_.reset();
687 lock_state_controller_.reset();
688
689 resolution_notification_controller_.reset();
690 desktop_background_controller_.reset();
691
692 // This also deletes all RootWindows. Note that we invoke Shutdown() on
693 // DisplayController before resetting |display_controller_|, since destruction
694 // of its owned RootWindowControllers relies on the value.
695 display_controller_->Shutdown();
696 display_controller_.reset();
697 screen_position_controller_.reset();
698
699 keyboard_controller_.reset();
700 accessibility_delegate_.reset();
701 new_window_delegate_.reset();
702 media_delegate_.reset();
703
704 #if defined(OS_CHROMEOS) && defined(USE_X11)
705 if (display_change_observer_)
706 output_configurator_->RemoveObserver(display_change_observer_.get());
707 if (output_configurator_animation_)
708 output_configurator_->RemoveObserver(output_configurator_animation_.get());
709 if (display_error_observer_)
710 output_configurator_->RemoveObserver(display_error_observer_.get());
711 base::MessagePumpX11::Current()->RemoveDispatcherForRootWindow(
712 output_configurator());
713 base::MessagePumpX11::Current()->RemoveObserver(output_configurator());
714 display_change_observer_.reset();
715 #endif // defined(OS_CHROMEOS)
716
717 #if defined(OS_CHROMEOS)
718 internal::PowerStatus::Shutdown();
719 #endif
720
721 DCHECK(instance_ == this);
722 instance_ = NULL;
723 }
724
Init()725 void Shell::Init() {
726 CommandLine* command_line = CommandLine::ForCurrentProcess();
727
728 delegate_->PreInit();
729 if (keyboard::IsKeyboardUsabilityExperimentEnabled()) {
730 display_manager_->SetSecondDisplayMode(
731 internal::DisplayManager::VIRTUAL_KEYBOARD);
732 }
733 bool display_initialized = display_manager_->InitFromCommandLine();
734 #if defined(OS_CHROMEOS) && defined(USE_X11)
735 output_configurator_animation_.reset(
736 new internal::OutputConfiguratorAnimation());
737 output_configurator_->AddObserver(output_configurator_animation_.get());
738
739 if (!display_initialized && base::SysInfo::IsRunningOnChromeOS()) {
740 display_change_observer_.reset(new internal::DisplayChangeObserver);
741 // Register |display_change_observer_| first so that the rest of
742 // observer gets invoked after the root windows are configured.
743 output_configurator_->AddObserver(display_change_observer_.get());
744 display_error_observer_.reset(new internal::DisplayErrorObserver());
745 output_configurator_->AddObserver(display_error_observer_.get());
746 output_configurator_->set_state_controller(display_change_observer_.get());
747 output_configurator_->set_mirroring_controller(display_manager_.get());
748 output_configurator_->Start(
749 delegate_->IsFirstRunAfterBoot() ? kChromeOsBootColor : 0);
750 display_initialized = true;
751 }
752 #endif // defined(OS_CHROMEOS) && defined(USE_X11)
753 if (!display_initialized)
754 display_manager_->InitDefaultDisplay();
755
756 // Install the custom factory first so that views::FocusManagers for Tray,
757 // Launcher, and WallPaper could be created by the factory.
758 views::FocusManagerFactory::Install(new AshFocusManagerFactory);
759
760 // Env creates the compositor. Historically it seems to have been implicitly
761 // initialized first by the ActivationController, but now that FocusController
762 // no longer does this we need to do it explicitly.
763 aura::Env::CreateInstance();
764
765 // The WindowModalityController needs to be at the front of the input event
766 // pretarget handler list to ensure that it processes input events when modal
767 // windows are active.
768 window_modality_controller_.reset(
769 new views::corewm::WindowModalityController(this));
770
771 AddPreTargetHandler(this);
772
773 env_filter_.reset(new views::corewm::CompoundEventFilter);
774 AddPreTargetHandler(env_filter_.get());
775
776 views::corewm::FocusController* focus_controller =
777 new views::corewm::FocusController(new wm::AshFocusRules);
778 focus_client_.reset(focus_controller);
779 activation_client_ = focus_controller;
780 activation_client_->AddObserver(this);
781 focus_cycler_.reset(new internal::FocusCycler());
782
783 screen_position_controller_.reset(new internal::ScreenPositionController);
784 root_window_host_factory_.reset(delegate_->CreateRootWindowHostFactory());
785
786 display_controller_->Start();
787 display_controller_->InitPrimaryDisplay();
788 aura::Window* root_window = display_controller_->GetPrimaryRootWindow();
789 target_root_window_ = root_window;
790
791 resolution_notification_controller_.reset(
792 new internal::ResolutionNotificationController);
793
794 cursor_manager_.SetDisplay(DisplayController::GetPrimaryDisplay());
795
796 nested_dispatcher_controller_.reset(new NestedDispatcherController);
797 accelerator_controller_.reset(new AcceleratorController);
798
799 // The order in which event filters are added is significant.
800 event_rewriter_filter_.reset(new internal::EventRewriterEventFilter);
801 AddPreTargetHandler(event_rewriter_filter_.get());
802
803 #if defined(OS_CHROMEOS)
804 // The StickyKeys event filter also rewrites events and must be added
805 // before observers, but after the EventRewriterEventFilter.
806 sticky_keys_.reset(new StickyKeys);
807 AddPreTargetHandler(sticky_keys_.get());
808 #endif
809
810 // UserActivityDetector passes events to observers, so let them get
811 // rewritten first.
812 user_activity_detector_.reset(new UserActivityDetector);
813 AddPreTargetHandler(user_activity_detector_.get());
814
815 overlay_filter_.reset(new internal::OverlayEventFilter);
816 AddPreTargetHandler(overlay_filter_.get());
817 AddShellObserver(overlay_filter_.get());
818
819 input_method_filter_.reset(new views::corewm::InputMethodEventFilter(
820 root_window->GetDispatcher()->host()->GetAcceleratedWidget()));
821 AddPreTargetHandler(input_method_filter_.get());
822
823 accelerator_filter_.reset(new internal::AcceleratorFilter);
824 AddPreTargetHandler(accelerator_filter_.get());
825
826 event_transformation_handler_.reset(new internal::EventTransformationHandler);
827 AddPreTargetHandler(event_transformation_handler_.get());
828
829 system_gesture_filter_.reset(new internal::SystemGestureEventFilter);
830 AddPreTargetHandler(system_gesture_filter_.get());
831
832 keyboard_metrics_filter_.reset(new internal::KeyboardUMAEventFilter);
833 AddPreTargetHandler(keyboard_metrics_filter_.get());
834
835 // The keyboard system must be initialized before the RootWindowController is
836 // created.
837 if (keyboard::IsKeyboardEnabled())
838 keyboard::InitializeKeyboard();
839
840 lock_state_controller_.reset(new LockStateController);
841 power_button_controller_.reset(new PowerButtonController(
842 lock_state_controller_.get()));
843 AddShellObserver(lock_state_controller_.get());
844
845 drag_drop_controller_.reset(new internal::DragDropController);
846 mouse_cursor_filter_.reset(new internal::MouseCursorEventFilter());
847 PrependPreTargetHandler(mouse_cursor_filter_.get());
848
849 // Create Controllers that may need root window.
850 // TODO(oshima): Move as many controllers before creating
851 // RootWindowController as possible.
852 visibility_controller_.reset(new AshVisibilityController);
853 user_action_client_.reset(delegate_->CreateUserActionClient());
854
855 magnification_controller_.reset(
856 MagnificationController::CreateInstance());
857 mru_window_tracker_.reset(new MruWindowTracker(activation_client_));
858
859 partial_magnification_controller_.reset(
860 new PartialMagnificationController());
861
862 autoclick_controller_.reset(AutoclickController::CreateInstance());
863
864 high_contrast_controller_.reset(new HighContrastController);
865 video_detector_.reset(new VideoDetector);
866 window_cycle_controller_.reset(new WindowCycleController());
867 window_selector_controller_.reset(new WindowSelectorController());
868
869 tooltip_controller_.reset(
870 new views::corewm::TooltipController(
871 scoped_ptr<views::corewm::Tooltip>(
872 new views::corewm::TooltipAura(gfx::SCREEN_TYPE_ALTERNATE))));
873 AddPreTargetHandler(tooltip_controller_.get());
874
875 event_client_.reset(new internal::EventClientImpl);
876
877 // This controller needs to be set before SetupManagedWindowMode.
878 desktop_background_controller_.reset(new DesktopBackgroundController());
879 user_wallpaper_delegate_.reset(delegate_->CreateUserWallpaperDelegate());
880
881 // StatusAreaWidget uses Shell's CapsLockDelegate.
882 caps_lock_delegate_.reset(delegate_->CreateCapsLockDelegate());
883
884 session_state_delegate_.reset(delegate_->CreateSessionStateDelegate());
885 accessibility_delegate_.reset(delegate_->CreateAccessibilityDelegate());
886 new_window_delegate_.reset(delegate_->CreateNewWindowDelegate());
887 media_delegate_.reset(delegate_->CreateMediaDelegate());
888
889 if (!command_line->HasSwitch(views::corewm::switches::kNoDropShadows)) {
890 resize_shadow_controller_.reset(new internal::ResizeShadowController());
891 shadow_controller_.reset(
892 new views::corewm::ShadowController(activation_client_));
893 }
894
895 // Create system_tray_notifier_ before the delegate.
896 system_tray_notifier_.reset(new ash::SystemTrayNotifier());
897
898 // Initialize system_tray_delegate_ before initializing StatusAreaWidget.
899 system_tray_delegate_.reset(delegate()->CreateSystemTrayDelegate());
900 DCHECK(system_tray_delegate_.get());
901
902 locale_notification_controller_.reset(
903 new internal::LocaleNotificationController);
904
905 // Initialize system_tray_delegate_ after StatusAreaWidget is created.
906 system_tray_delegate_->Initialize();
907
908 // TODO(oshima): Initialize all RootWindowControllers once, and
909 // initialize controller/delegates above when initializing the
910 // primary root window controller.
911 internal::RootWindowController::CreateForPrimaryDisplay(
912 root_window->GetDispatcher());
913
914 display_controller_->InitSecondaryDisplays();
915
916 // It needs to be created after RootWindowController has been created
917 // (which calls OnWindowResized has been called, otherwise the
918 // widget will not paint when restoring after a browser crash. Also it needs
919 // to be created after InitSecondaryDisplays() to initialize the wallpapers in
920 // the correct size.
921 user_wallpaper_delegate_->InitializeWallpaper();
922
923 if (initially_hide_cursor_)
924 cursor_manager_.HideCursor();
925 cursor_manager_.SetCursor(ui::kCursorPointer);
926
927 #if defined(OS_CHROMEOS)
928 // Set accelerator controller delegates.
929 accelerator_controller_->SetBrightnessControlDelegate(
930 scoped_ptr<ash::BrightnessControlDelegate>(
931 new ash::system::BrightnessControllerChromeos).Pass());
932
933 power_event_observer_.reset(new internal::PowerEventObserver());
934 user_activity_notifier_.reset(
935 new internal::UserActivityNotifier(user_activity_detector_.get()));
936 video_activity_notifier_.reset(
937 new internal::VideoActivityNotifier(video_detector_.get()));
938 #endif
939
940 weak_display_manager_factory_.reset(
941 new base::WeakPtrFactory<internal::DisplayManager>(
942 display_manager_.get()));
943 // The compositor thread and main message loop have to be running in
944 // order to create mirror window. Run it after the main message loop
945 // is started.
946 base::MessageLoopForUI::current()->PostTask(
947 FROM_HERE,
948 base::Bind(&internal::DisplayManager::CreateMirrorWindowIfAny,
949 weak_display_manager_factory_->GetWeakPtr()));
950 }
951
InitKeyboard()952 void Shell::InitKeyboard() {
953 if (keyboard::IsKeyboardEnabled()) {
954 if (keyboard_controller_.get()) {
955 RootWindowControllerList controllers = GetAllRootWindowControllers();
956 for (RootWindowControllerList::iterator iter = controllers.begin();
957 iter != controllers.end(); ++iter) {
958 (*iter)->DeactivateKeyboard(keyboard_controller_.get());
959 }
960 }
961 keyboard::KeyboardControllerProxy* proxy =
962 delegate_->CreateKeyboardControllerProxy();
963 keyboard_controller_.reset(
964 new keyboard::KeyboardController(proxy));
965 }
966 }
967
InitRootWindow(aura::Window * root_window)968 void Shell::InitRootWindow(aura::Window* root_window) {
969 DCHECK(activation_client_);
970 DCHECK(visibility_controller_.get());
971 DCHECK(drag_drop_controller_.get());
972 DCHECK(window_cycle_controller_.get());
973
974 aura::client::SetFocusClient(root_window, focus_client_.get());
975 input_method_filter_->SetInputMethodPropertyInRootWindow(root_window);
976 aura::client::SetActivationClient(root_window, activation_client_);
977 views::corewm::FocusController* focus_controller =
978 static_cast<views::corewm::FocusController*>(activation_client_);
979 root_window->AddPreTargetHandler(focus_controller);
980 aura::client::SetVisibilityClient(root_window, visibility_controller_.get());
981 aura::client::SetDragDropClient(root_window, drag_drop_controller_.get());
982 aura::client::SetScreenPositionClient(root_window,
983 screen_position_controller_.get());
984 aura::client::SetCursorClient(root_window, &cursor_manager_);
985 aura::client::SetTooltipClient(root_window, tooltip_controller_.get());
986 aura::client::SetEventClient(root_window, event_client_.get());
987
988 if (nested_dispatcher_controller_) {
989 aura::client::SetDispatcherClient(root_window,
990 nested_dispatcher_controller_.get());
991 }
992 if (user_action_client_)
993 aura::client::SetUserActionClient(root_window, user_action_client_.get());
994 }
995
CanWindowReceiveEvents(aura::Window * window)996 bool Shell::CanWindowReceiveEvents(aura::Window* window) {
997 RootWindowControllerList controllers = GetAllRootWindowControllers();
998 for (RootWindowControllerList::iterator iter = controllers.begin();
999 iter != controllers.end(); ++iter) {
1000 internal::SystemModalContainerLayoutManager* layout_manager =
1001 (*iter)->GetSystemModalLayoutManager(window);
1002 if (layout_manager && layout_manager->CanWindowReceiveEvents(window))
1003 return true;
1004 }
1005 return false;
1006 }
1007
1008 ////////////////////////////////////////////////////////////////////////////////
1009 // Shell, ui::EventTarget overrides:
1010
CanAcceptEvent(const ui::Event & event)1011 bool Shell::CanAcceptEvent(const ui::Event& event) {
1012 return true;
1013 }
1014
GetParentTarget()1015 ui::EventTarget* Shell::GetParentTarget() {
1016 return aura::Env::GetInstance();
1017 }
1018
GetChildIterator() const1019 scoped_ptr<ui::EventTargetIterator> Shell::GetChildIterator() const {
1020 return scoped_ptr<ui::EventTargetIterator>();
1021 }
1022
GetEventTargeter()1023 ui::EventTargeter* Shell::GetEventTargeter() {
1024 NOTREACHED();
1025 return NULL;
1026 }
1027
OnEvent(ui::Event * event)1028 void Shell::OnEvent(ui::Event* event) {
1029 }
1030
1031 ////////////////////////////////////////////////////////////////////////////////
1032 // Shell, aura::client::ActivationChangeObserver implementation:
1033
OnWindowActivated(aura::Window * gained_active,aura::Window * lost_active)1034 void Shell::OnWindowActivated(aura::Window* gained_active,
1035 aura::Window* lost_active) {
1036 if (gained_active)
1037 target_root_window_ = gained_active->GetRootWindow();
1038 }
1039
1040 } // namespace ash
1041