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shell.cc
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/shell.h"
#include <algorithm>
#include <string>
#include "ash/accelerators/accelerator_controller.h"
#include "ash/accelerators/accelerator_delegate.h"
#include "ash/accelerators/focus_manager_factory.h"
#include "ash/accelerators/nested_accelerator_delegate.h"
#include "ash/ash_switches.h"
#include "ash/autoclick/autoclick_controller.h"
#include "ash/desktop_background/desktop_background_controller.h"
#include "ash/desktop_background/desktop_background_view.h"
#include "ash/desktop_background/user_wallpaper_delegate.h"
#include "ash/display/cursor_window_controller.h"
#include "ash/display/display_controller.h"
#include "ash/display/display_manager.h"
#include "ash/display/event_transformation_handler.h"
#include "ash/display/mouse_cursor_event_filter.h"
#include "ash/display/screen_position_controller.h"
#include "ash/drag_drop/drag_drop_controller.h"
#include "ash/first_run/first_run_helper_impl.h"
#include "ash/focus_cycler.h"
#include "ash/frame/custom_frame_view_ash.h"
#include "ash/gpu_support.h"
#include "ash/high_contrast/high_contrast_controller.h"
#include "ash/host/ash_window_tree_host_init_params.h"
#include "ash/keyboard_uma_event_filter.h"
#include "ash/magnifier/magnification_controller.h"
#include "ash/magnifier/partial_magnification_controller.h"
#include "ash/media_delegate.h"
#include "ash/new_window_delegate.h"
#include "ash/root_window_controller.h"
#include "ash/session/session_state_delegate.h"
#include "ash/shelf/app_list_shelf_item_delegate.h"
#include "ash/shelf/shelf_delegate.h"
#include "ash/shelf/shelf_item_delegate.h"
#include "ash/shelf/shelf_item_delegate_manager.h"
#include "ash/shelf/shelf_layout_manager.h"
#include "ash/shelf/shelf_model.h"
#include "ash/shelf/shelf_widget.h"
#include "ash/shelf/shelf_window_watcher.h"
#include "ash/shell_delegate.h"
#include "ash/shell_factory.h"
#include "ash/shell_init_params.h"
#include "ash/shell_window_ids.h"
#include "ash/system/locale/locale_notification_controller.h"
#include "ash/system/status_area_widget.h"
#include "ash/system/tray/system_tray_delegate.h"
#include "ash/system/tray/system_tray_notifier.h"
#include "ash/wm/app_list_controller.h"
#include "ash/wm/ash_focus_rules.h"
#include "ash/wm/ash_native_cursor_manager.h"
#include "ash/wm/coordinate_conversion.h"
#include "ash/wm/event_client_impl.h"
#include "ash/wm/lock_state_controller.h"
#include "ash/wm/maximize_mode/maximize_mode_controller.h"
#include "ash/wm/maximize_mode/maximize_mode_window_manager.h"
#include "ash/wm/mru_window_tracker.h"
#include "ash/wm/overlay_event_filter.h"
#include "ash/wm/overview/window_selector_controller.h"
#include "ash/wm/power_button_controller.h"
#include "ash/wm/resize_shadow_controller.h"
#include "ash/wm/root_window_layout_manager.h"
#include "ash/wm/screen_dimmer.h"
#include "ash/wm/system_gesture_event_filter.h"
#include "ash/wm/system_modal_container_event_filter.h"
#include "ash/wm/system_modal_container_layout_manager.h"
#include "ash/wm/toplevel_window_event_handler.h"
#include "ash/wm/video_detector.h"
#include "ash/wm/window_animations.h"
#include "ash/wm/window_cycle_controller.h"
#include "ash/wm/window_positioner.h"
#include "ash/wm/window_properties.h"
#include "ash/wm/window_util.h"
#include "ash/wm/workspace_controller.h"
#include "base/bind.h"
#include "base/debug/trace_event.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/env.h"
#include "ui/aura/layout_manager.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/base/ui_base_switches.h"
#include "ui/base/user_activity/user_activity_detector.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animator.h"
#include "ui/events/event_target_iterator.h"
#include "ui/gfx/display.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/screen.h"
#include "ui/keyboard/keyboard.h"
#include "ui/keyboard/keyboard_controller.h"
#include "ui/keyboard/keyboard_switches.h"
#include "ui/keyboard/keyboard_util.h"
#include "ui/message_center/message_center.h"
#include "ui/views/corewm/tooltip_aura.h"
#include "ui/views/corewm/tooltip_controller.h"
#include "ui/views/focus/focus_manager_factory.h"
#include "ui/views/widget/native_widget_aura.h"
#include "ui/views/widget/widget.h"
#include "ui/wm/core/accelerator_filter.h"
#include "ui/wm/core/compound_event_filter.h"
#include "ui/wm/core/focus_controller.h"
#include "ui/wm/core/input_method_event_filter.h"
#include "ui/wm/core/nested_accelerator_controller.h"
#include "ui/wm/core/shadow_controller.h"
#include "ui/wm/core/visibility_controller.h"
#include "ui/wm/core/window_modality_controller.h"
#if defined(OS_CHROMEOS)
#if defined(USE_X11)
#include "ui/gfx/x/x11_types.h"
#endif // defined(USE_X11)
#include "ash/accelerators/magnifier_key_scroller.h"
#include "ash/accelerators/spoken_feedback_toggler.h"
#include "ash/ash_constants.h"
#include "ash/content/display/screen_orientation_controller_chromeos.h"
#include "ash/display/display_change_observer_chromeos.h"
#include "ash/display/display_configurator_animation.h"
#include "ash/display/display_error_observer_chromeos.h"
#include "ash/display/projecting_observer_chromeos.h"
#include "ash/display/resolution_notification_controller.h"
#include "ash/sticky_keys/sticky_keys_controller.h"
#include "ash/system/chromeos/bluetooth/bluetooth_notification_controller.h"
#include "ash/system/chromeos/brightness/brightness_controller_chromeos.h"
#include "ash/system/chromeos/power/power_event_observer.h"
#include "ash/system/chromeos/power/power_status.h"
#include "ash/system/chromeos/power/video_activity_notifier.h"
#include "ash/system/chromeos/session/last_window_closed_logout_reminder.h"
#include "ash/system/chromeos/session/logout_confirmation_controller.h"
#include "ash/touch/touch_transformer_controller.h"
#include "ash/virtual_keyboard_controller.h"
#include "base/bind_helpers.h"
#include "base/sys_info.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "ui/chromeos/user_activity_power_manager_notifier.h"
#include "ui/display/chromeos/display_configurator.h"
#endif // defined(OS_CHROMEOS)
namespace ash {
namespace {
using aura::Window;
using views::Widget;
// A Corewm VisibilityController subclass that calls the Ash animation routine
// so we can pick up our extended animations. See ash/wm/window_animations.h.
class AshVisibilityController : public ::wm::VisibilityController {
public:
AshVisibilityController() {}
~AshVisibilityController() override {}
private:
// Overridden from ::wm::VisibilityController:
bool CallAnimateOnChildWindowVisibilityChanged(aura::Window* window,
bool visible) override {
return AnimateOnChildWindowVisibilityChanged(window, visible);
}
DISALLOW_COPY_AND_ASSIGN(AshVisibilityController);
};
AshWindowTreeHostInitParams ShellInitParamsToAshWindowTreeHostInitParams(
const ShellInitParams& shell_init_params) {
AshWindowTreeHostInitParams ash_init_params;
#if defined(OS_WIN)
ash_init_params.remote_hwnd = shell_init_params.remote_hwnd;
#endif
return ash_init_params;
}
} // namespace
// static
Shell* Shell::instance_ = NULL;
// static
bool Shell::initially_hide_cursor_ = false;
////////////////////////////////////////////////////////////////////////////////
// Shell, public:
// static
Shell* Shell::CreateInstance(const ShellInitParams& init_params) {
CHECK(!instance_);
instance_ = new Shell(init_params.delegate);
instance_->Init(init_params);
return instance_;
}
// static
Shell* Shell::GetInstance() {
CHECK(instance_);
return instance_;
}
// static
bool Shell::HasInstance() {
return !!instance_;
}
// static
void Shell::DeleteInstance() {
delete instance_;
instance_ = NULL;
}
// static
RootWindowController* Shell::GetPrimaryRootWindowController() {
CHECK(HasInstance());
return GetRootWindowController(GetPrimaryRootWindow());
}
// static
Shell::RootWindowControllerList Shell::GetAllRootWindowControllers() {
CHECK(HasInstance());
return Shell::GetInstance()->display_controller()->
GetAllRootWindowControllers();
}
// static
aura::Window* Shell::GetPrimaryRootWindow() {
CHECK(HasInstance());
return GetInstance()->display_controller()->GetPrimaryRootWindow();
}
// static
aura::Window* Shell::GetTargetRootWindow() {
CHECK(HasInstance());
Shell* shell = GetInstance();
if (shell->scoped_target_root_window_)
return shell->scoped_target_root_window_;
return shell->target_root_window_;
}
// static
gfx::Screen* Shell::GetScreen() {
return gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE);
}
// static
aura::Window::Windows Shell::GetAllRootWindows() {
CHECK(HasInstance());
return Shell::GetInstance()->display_controller()->
GetAllRootWindows();
}
// static
aura::Window* Shell::GetContainer(aura::Window* root_window,
int container_id) {
return root_window->GetChildById(container_id);
}
// static
const aura::Window* Shell::GetContainer(const aura::Window* root_window,
int container_id) {
return root_window->GetChildById(container_id);
}
// static
std::vector<aura::Window*> Shell::GetContainersFromAllRootWindows(
int container_id,
aura::Window* priority_root) {
std::vector<aura::Window*> containers;
aura::Window::Windows root_windows = GetAllRootWindows();
for (aura::Window::Windows::const_iterator it = root_windows.begin();
it != root_windows.end(); ++it) {
aura::Window* container = (*it)->GetChildById(container_id);
if (container) {
if (priority_root && priority_root->Contains(container))
containers.insert(containers.begin(), container);
else
containers.push_back(container);
}
}
return containers;
}
void Shell::ShowContextMenu(const gfx::Point& location_in_screen,
ui::MenuSourceType source_type) {
// No context menus if there is no session with an active user.
if (!session_state_delegate_->NumberOfLoggedInUsers())
return;
// No context menus when screen is locked.
if (session_state_delegate_->IsScreenLocked())
return;
aura::Window* root =
wm::GetRootWindowMatching(gfx::Rect(location_in_screen, gfx::Size()));
GetRootWindowController(root)
->ShowContextMenu(location_in_screen, source_type);
}
void Shell::ShowAppList(aura::Window* window) {
// If the context window is not given, show it on the target root window.
if (!window)
window = GetTargetRootWindow();
if (!app_list_controller_)
app_list_controller_.reset(new AppListController);
app_list_controller_->Show(window);
}
void Shell::DismissAppList() {
if (!app_list_controller_)
return;
app_list_controller_->Dismiss();
}
void Shell::ToggleAppList(aura::Window* window) {
if (app_list_controller_ && app_list_controller_->IsVisible()) {
DismissAppList();
return;
}
ShowAppList(window);
}
bool Shell::GetAppListTargetVisibility() const {
return app_list_controller_.get() &&
app_list_controller_->GetTargetVisibility();
}
aura::Window* Shell::GetAppListWindow() {
return app_list_controller_.get() ? app_list_controller_->GetWindow() : NULL;
}
app_list::AppListView* Shell::GetAppListView() {
return app_list_controller_.get() ? app_list_controller_->GetView() : NULL;
}
bool Shell::IsSystemModalWindowOpen() const {
if (simulate_modal_window_open_for_testing_)
return true;
const std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
kShellWindowId_SystemModalContainer, NULL);
for (std::vector<aura::Window*>::const_iterator cit = containers.begin();
cit != containers.end(); ++cit) {
for (aura::Window::Windows::const_iterator wit = (*cit)->children().begin();
wit != (*cit)->children().end(); ++wit) {
if ((*wit)->GetProperty(aura::client::kModalKey) ==
ui::MODAL_TYPE_SYSTEM && (*wit)->TargetVisibility()) {
return true;
}
}
}
return false;
}
views::NonClientFrameView* Shell::CreateDefaultNonClientFrameView(
views::Widget* widget) {
// Use translucent-style window frames for dialogs.
return new CustomFrameViewAsh(widget);
}
void Shell::RotateFocus(Direction direction) {
focus_cycler_->RotateFocus(direction == FORWARD ? FocusCycler::FORWARD
: FocusCycler::BACKWARD);
}
void Shell::SetDisplayWorkAreaInsets(Window* contains,
const gfx::Insets& insets) {
if (!display_controller_->UpdateWorkAreaOfDisplayNearestWindow(
contains, insets)) {
return;
}
FOR_EACH_OBSERVER(ShellObserver, observers_,
OnDisplayWorkAreaInsetsChanged());
}
void Shell::OnLoginStateChanged(user::LoginStatus status) {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnLoginStateChanged(status));
}
void Shell::OnLoginUserProfilePrepared() {
CreateShelf();
CreateKeyboard();
}
void Shell::UpdateAfterLoginStatusChange(user::LoginStatus status) {
RootWindowControllerList controllers = GetAllRootWindowControllers();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter)
(*iter)->UpdateAfterLoginStatusChange(status);
}
void Shell::OnAppTerminating() {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnAppTerminating());
}
void Shell::OnLockStateChanged(bool locked) {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnLockStateChanged(locked));
#ifndef NDEBUG
// Make sure that there is no system modal in Lock layer when unlocked.
if (!locked) {
std::vector<aura::Window*> containers = GetContainersFromAllRootWindows(
kShellWindowId_LockSystemModalContainer, GetPrimaryRootWindow());
for (std::vector<aura::Window*>::const_iterator iter = containers.begin();
iter != containers.end(); ++iter) {
DCHECK_EQ(0u, (*iter)->children().size());
}
}
#endif
}
void Shell::OnCastingSessionStartedOrStopped(bool started) {
#if defined(OS_CHROMEOS)
if (projecting_observer_)
projecting_observer_->OnCastingSessionStartedOrStopped(started);
#endif
}
void Shell::OnOverviewModeStarting() {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnOverviewModeStarting());
}
void Shell::OnOverviewModeEnded() {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnOverviewModeEnded());
}
void Shell::OnMaximizeModeStarted() {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnMaximizeModeStarted());
}
void Shell::OnMaximizeModeEnded() {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnMaximizeModeEnded());
}
void Shell::OnRootWindowAdded(aura::Window* root_window) {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnRootWindowAdded(root_window));
}
void Shell::CreateShelf() {
RootWindowControllerList controllers = GetAllRootWindowControllers();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter)
(*iter)->shelf()->CreateShelf();
}
void Shell::OnShelfCreatedForRootWindow(aura::Window* root_window) {
FOR_EACH_OBSERVER(ShellObserver,
observers_,
OnShelfCreatedForRootWindow(root_window));
}
void Shell::CreateKeyboard() {
// TODO(bshe): Primary root window controller may not be the controller to
// attach virtual keyboard. See http://crbug.com/303429
InitKeyboard();
GetPrimaryRootWindowController()->
ActivateKeyboard(keyboard::KeyboardController::GetInstance());
}
void Shell::DeactivateKeyboard() {
if (keyboard::KeyboardController::GetInstance()) {
RootWindowControllerList controllers = GetAllRootWindowControllers();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter) {
(*iter)->DeactivateKeyboard(keyboard::KeyboardController::GetInstance());
}
}
keyboard::KeyboardController::ResetInstance(NULL);
}
void Shell::ShowShelf() {
RootWindowControllerList controllers = GetAllRootWindowControllers();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter)
(*iter)->ShowShelf();
}
void Shell::AddShellObserver(ShellObserver* observer) {
observers_.AddObserver(observer);
}
void Shell::RemoveShellObserver(ShellObserver* observer) {
observers_.RemoveObserver(observer);
}
#if defined(OS_CHROMEOS)
bool Shell::ShouldSaveDisplaySettings() {
return !(screen_orientation_controller_
->ignore_display_configuration_updates() ||
resolution_notification_controller_->DoesNotificationTimeout());
}
#endif
void Shell::UpdateShelfVisibility() {
RootWindowControllerList controllers = GetAllRootWindowControllers();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter)
if ((*iter)->shelf())
(*iter)->UpdateShelfVisibility();
}
void Shell::SetShelfAutoHideBehavior(ShelfAutoHideBehavior behavior,
aura::Window* root_window) {
ash::ShelfLayoutManager::ForShelf(root_window)->SetAutoHideBehavior(behavior);
}
ShelfAutoHideBehavior Shell::GetShelfAutoHideBehavior(
aura::Window* root_window) const {
return ash::ShelfLayoutManager::ForShelf(root_window)->auto_hide_behavior();
}
void Shell::SetShelfAlignment(ShelfAlignment alignment,
aura::Window* root_window) {
if (ash::ShelfLayoutManager::ForShelf(root_window)->SetAlignment(alignment)) {
FOR_EACH_OBSERVER(
ShellObserver, observers_, OnShelfAlignmentChanged(root_window));
}
}
ShelfAlignment Shell::GetShelfAlignment(const aura::Window* root_window) {
return GetRootWindowController(root_window)
->GetShelfLayoutManager()
->GetAlignment();
}
void Shell::SetDimming(bool should_dim) {
RootWindowControllerList controllers = GetAllRootWindowControllers();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter)
(*iter)->screen_dimmer()->SetDimming(should_dim);
}
void Shell::NotifyFullscreenStateChange(bool is_fullscreen,
aura::Window* root_window) {
FOR_EACH_OBSERVER(ShellObserver, observers_, OnFullscreenStateChanged(
is_fullscreen, root_window));
}
void Shell::CreateModalBackground(aura::Window* window) {
if (!modality_filter_) {
modality_filter_.reset(new SystemModalContainerEventFilter(this));
AddPreTargetHandler(modality_filter_.get());
}
RootWindowControllerList controllers = GetAllRootWindowControllers();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter)
(*iter)->GetSystemModalLayoutManager(window)->CreateModalBackground();
}
void Shell::OnModalWindowRemoved(aura::Window* removed) {
RootWindowControllerList controllers = GetAllRootWindowControllers();
bool activated = false;
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end() && !activated; ++iter) {
activated = (*iter)->GetSystemModalLayoutManager(removed)->
ActivateNextModalWindow();
}
if (!activated) {
RemovePreTargetHandler(modality_filter_.get());
modality_filter_.reset();
for (RootWindowControllerList::iterator iter = controllers.begin();
iter != controllers.end(); ++iter)
(*iter)->GetSystemModalLayoutManager(removed)->DestroyModalBackground();
}
}
WebNotificationTray* Shell::GetWebNotificationTray() {
return GetPrimaryRootWindowController()->shelf()->
status_area_widget()->web_notification_tray();
}
bool Shell::HasPrimaryStatusArea() {
ShelfWidget* shelf = GetPrimaryRootWindowController()->shelf();
return shelf && shelf->status_area_widget();
}
SystemTray* Shell::GetPrimarySystemTray() {
return GetPrimaryRootWindowController()->GetSystemTray();
}
ShelfDelegate* Shell::GetShelfDelegate() {
if (!shelf_delegate_) {
shelf_model_.reset(new ShelfModel);
// Creates ShelfItemDelegateManager before ShelfDelegate.
shelf_item_delegate_manager_.reset(
new ShelfItemDelegateManager(shelf_model_.get()));
shelf_delegate_.reset(delegate_->CreateShelfDelegate(shelf_model_.get()));
scoped_ptr<ShelfItemDelegate> controller(new AppListShelfItemDelegate);
// Finding the shelf model's location of the app list and setting its
// ShelfItemDelegate.
int app_list_index = shelf_model_->GetItemIndexForType(TYPE_APP_LIST);
DCHECK_GE(app_list_index, 0);
ShelfID app_list_id = shelf_model_->items()[app_list_index].id;
DCHECK(app_list_id);
shelf_item_delegate_manager_->SetShelfItemDelegate(app_list_id,
controller.Pass());
shelf_window_watcher_.reset(new ShelfWindowWatcher(
shelf_model_.get(), shelf_item_delegate_manager_.get()));
}
return shelf_delegate_.get();
}
void Shell::SetTouchHudProjectionEnabled(bool enabled) {
if (is_touch_hud_projection_enabled_ == enabled)
return;
is_touch_hud_projection_enabled_ = enabled;
FOR_EACH_OBSERVER(ShellObserver, observers_,
OnTouchHudProjectionToggled(enabled));
}
#if defined(OS_CHROMEOS)
ash::FirstRunHelper* Shell::CreateFirstRunHelper() {
return new ash::FirstRunHelperImpl;
}
void Shell::SetCursorCompositingEnabled(bool enabled) {
display_controller_->cursor_window_controller()->SetCursorCompositingEnabled(
enabled);
native_cursor_manager_->SetNativeCursorEnabled(!enabled);
}
#endif // defined(OS_CHROMEOS)
void Shell::DoInitialWorkspaceAnimation() {
return GetPrimaryRootWindowController()->workspace_controller()->
DoInitialAnimation();
}
////////////////////////////////////////////////////////////////////////////////
// Shell, private:
Shell::Shell(ShellDelegate* delegate)
: target_root_window_(NULL),
scoped_target_root_window_(NULL),
delegate_(delegate),
window_positioner_(new WindowPositioner),
activation_client_(NULL),
#if defined(OS_CHROMEOS)
display_configurator_(new ui::DisplayConfigurator()),
#endif // defined(OS_CHROMEOS)
native_cursor_manager_(new AshNativeCursorManager),
cursor_manager_(
scoped_ptr<::wm::NativeCursorManager>(native_cursor_manager_)),
simulate_modal_window_open_for_testing_(false),
is_touch_hud_projection_enabled_(false) {
DCHECK(delegate_.get());
gpu_support_.reset(delegate_->CreateGPUSupport());
display_manager_.reset(new DisplayManager);
display_controller_.reset(new DisplayController);
user_metrics_recorder_.reset(new UserMetricsRecorder);
#if defined(OS_CHROMEOS)
PowerStatus::Initialize();
#endif
}
Shell::~Shell() {
TRACE_EVENT0("shutdown", "ash::Shell::Destructor");
delegate_->PreShutdown();
views::FocusManagerFactory::Install(NULL);
// Remove the focus from any window. This will prevent overhead and side
// effects (e.g. crashes) from changing focus during shutdown.
// See bug crbug.com/134502.
aura::client::GetFocusClient(GetPrimaryRootWindow())->FocusWindow(NULL);
// Please keep in same order as in Init() because it's easy to miss one.
if (window_modality_controller_)
window_modality_controller_.reset();
#if defined(OS_CHROMEOS)
RemovePreTargetHandler(magnifier_key_scroll_handler_.get());
magnifier_key_scroll_handler_.reset();
RemovePreTargetHandler(speech_feedback_handler_.get());
speech_feedback_handler_.reset();
#endif
RemovePreTargetHandler(user_activity_detector_.get());
RemovePreTargetHandler(overlay_filter_.get());
RemovePreTargetHandler(input_method_filter_.get());
RemovePreTargetHandler(accelerator_filter_.get());
RemovePreTargetHandler(event_transformation_handler_.get());
RemovePreTargetHandler(toplevel_window_event_handler_.get());
RemovePostTargetHandler(toplevel_window_event_handler_.get());
RemovePreTargetHandler(system_gesture_filter_.get());
RemovePreTargetHandler(keyboard_metrics_filter_.get());
RemovePreTargetHandler(mouse_cursor_filter_.get());
// TooltipController is deleted with the Shell so removing its references.
RemovePreTargetHandler(tooltip_controller_.get());
#if defined(OS_CHROMEOS)
screen_orientation_controller_.reset();
#endif
// Destroy the virtual keyboard controller before the maximize mode controller
// since the latters destructor triggers events that the former is listening
// to but no longer cares about.
#if defined(OS_CHROMEOS)
virtual_keyboard_controller_.reset();
#endif
// Destroy maximize mode controller early on since it has some observers which
// need to be removed.
maximize_mode_controller_.reset();
// AppList needs to be released before shelf layout manager, which is
// destroyed with shelf container in the loop below. However, app list
// container is now on top of shelf container and released after it.
// TODO(xiyuan): Move it back when app list container is no longer needed.
app_list_controller_.reset();
#if defined(OS_CHROMEOS)
// Destroy the LastWindowClosedLogoutReminder before the
// LogoutConfirmationController.
last_window_closed_logout_reminder_.reset();
// Destroy the LogoutConfirmationController before the SystemTrayDelegate.
logout_confirmation_controller_.reset();
#endif
// Destroy SystemTrayDelegate before destroying the status area(s).
system_tray_delegate_->Shutdown();
system_tray_delegate_.reset();
locale_notification_controller_.reset();
// Drag-and-drop must be canceled prior to close all windows.
drag_drop_controller_.reset();
// Controllers who have WindowObserver added must be deleted
// before |display_controller_| is deleted.
#if defined(OS_CHROMEOS)
// VideoActivityNotifier must be deleted before |video_detector_| is
// deleted because it's observing video activity through
// VideoDetectorObserver interface.
video_activity_notifier_.reset();
#endif // defined(OS_CHROMEOS)
video_detector_.reset();
high_contrast_controller_.reset();
shadow_controller_.reset();
resize_shadow_controller_.reset();
window_cycle_controller_.reset();
window_selector_controller_.reset();
mru_window_tracker_.reset();
// |shelf_window_watcher_| has a weak pointer to |shelf_Model_|
// and has window observers.
shelf_window_watcher_.reset();
// Destroy all child windows including widgets.
display_controller_->CloseChildWindows();
display_controller_->CloseMirroringDisplay();
// Chrome implementation of shelf delegate depends on FocusClient,
// so must be deleted before |focus_client_|.
shelf_delegate_.reset();
focus_client_.reset();
// Destroy SystemTrayNotifier after destroying SystemTray as TrayItems
// needs to remove observers from it.
system_tray_notifier_.reset();
// These need a valid Shell instance to clean up properly, so explicitly
// delete them before invalidating the instance.
// Alphabetical. TODO(oshima): sort.
magnification_controller_.reset();
partial_magnification_controller_.reset();
tooltip_controller_.reset();
event_client_.reset();
nested_accelerator_controller_.reset();
toplevel_window_event_handler_.reset();
visibility_controller_.reset();
// |shelf_item_delegate_manager_| observes |shelf_model_|. It must be
// destroyed before |shelf_model_| is destroyed.
shelf_item_delegate_manager_.reset();
shelf_model_.reset();
power_button_controller_.reset();
lock_state_controller_.reset();
#if defined(OS_CHROMEOS)
resolution_notification_controller_.reset();
#endif
desktop_background_controller_.reset();
mouse_cursor_filter_.reset();
#if defined(OS_CHROMEOS)
touch_transformer_controller_.reset();
#endif // defined(OS_CHROMEOS)
// This also deletes all RootWindows. Note that we invoke Shutdown() on
// DisplayController before resetting |display_controller_|, since destruction
// of its owned RootWindowControllers relies on the value.
display_manager_->CreateScreenForShutdown();
display_controller_->Shutdown();
display_controller_.reset();
screen_position_controller_.reset();
accessibility_delegate_.reset();
new_window_delegate_.reset();
media_delegate_.reset();
keyboard::KeyboardController::ResetInstance(NULL);
#if defined(OS_CHROMEOS)
if (display_change_observer_)
display_configurator_->RemoveObserver(display_change_observer_.get());
if (display_configurator_animation_)
display_configurator_->RemoveObserver(
display_configurator_animation_.get());
if (display_error_observer_)
display_configurator_->RemoveObserver(display_error_observer_.get());
if (projecting_observer_)
display_configurator_->RemoveObserver(projecting_observer_.get());
display_change_observer_.reset();
PowerStatus::Shutdown();
// Ensure that DBusThreadManager outlives this Shell.
DCHECK(chromeos::DBusThreadManager::IsInitialized());
#endif
DCHECK(instance_ == this);
instance_ = NULL;
}
void Shell::Init(const ShellInitParams& init_params) {
delegate_->PreInit();
bool display_initialized = display_manager_->InitFromCommandLine();
#if defined(OS_CHROMEOS)
display_configurator_->Init(!gpu_support_->IsPanelFittingDisabled());
display_configurator_animation_.reset(new DisplayConfiguratorAnimation());
display_configurator_->AddObserver(display_configurator_animation_.get());
// The DBusThreadManager must outlive this Shell. See the DCHECK in ~Shell.
chromeos::DBusThreadManager* dbus_thread_manager =
chromeos::DBusThreadManager::Get();
projecting_observer_.reset(
new ProjectingObserver(dbus_thread_manager->GetPowerManagerClient()));
display_configurator_->AddObserver(projecting_observer_.get());
if (!display_initialized && base::SysInfo::IsRunningOnChromeOS()) {
display_change_observer_.reset(new DisplayChangeObserver);
// Register |display_change_observer_| first so that the rest of
// observer gets invoked after the root windows are configured.
display_configurator_->AddObserver(display_change_observer_.get());
display_error_observer_.reset(new DisplayErrorObserver());
display_configurator_->AddObserver(display_error_observer_.get());
display_configurator_->set_state_controller(display_change_observer_.get());
display_configurator_->set_mirroring_controller(display_manager_.get());
display_configurator_->ForceInitialConfigure(
delegate_->IsFirstRunAfterBoot() ? kChromeOsBootColor : 0);
display_initialized = true;
}
#endif // defined(OS_CHROMEOS)
if (!display_initialized)
display_manager_->InitDefaultDisplay();
display_manager_->RefreshFontParams();
// Install the custom factory first so that views::FocusManagers for Tray,
// Shelf, and WallPaper could be created by the factory.
views::FocusManagerFactory::Install(new AshFocusManagerFactory);
aura::Env::CreateInstance(true);
aura::Env::GetInstance()->set_context_factory(init_params.context_factory);
// The WindowModalityController needs to be at the front of the input event
// pretarget handler list to ensure that it processes input events when modal
// windows are active.
window_modality_controller_.reset(
new ::wm::WindowModalityController(this));
env_filter_.reset(new ::wm::CompoundEventFilter);
AddPreTargetHandler(env_filter_.get());
wm::AshFocusRules* focus_rules = new wm::AshFocusRules();
::wm::FocusController* focus_controller =
new ::wm::FocusController(focus_rules);
focus_client_.reset(focus_controller);
activation_client_ = focus_controller;
activation_client_->AddObserver(this);
focus_cycler_.reset(new FocusCycler());
screen_position_controller_.reset(new ScreenPositionController);
display_controller_->Start();
display_controller_->CreatePrimaryHost(
ShellInitParamsToAshWindowTreeHostInitParams(init_params));
aura::Window* root_window = display_controller_->GetPrimaryRootWindow();
target_root_window_ = root_window;
#if defined(OS_CHROMEOS)
resolution_notification_controller_.reset(
new ResolutionNotificationController);
#endif
cursor_manager_.SetDisplay(GetScreen()->GetPrimaryDisplay());
nested_accelerator_controller_.reset(
new ::wm::NestedAcceleratorController(new NestedAcceleratorDelegate));
accelerator_controller_.reset(new AcceleratorController);
maximize_mode_controller_.reset(new MaximizeModeController());
#if defined(OS_CHROMEOS)
magnifier_key_scroll_handler_ = MagnifierKeyScroller::CreateHandler();
AddPreTargetHandler(magnifier_key_scroll_handler_.get());
speech_feedback_handler_ = SpokenFeedbackToggler::CreateHandler();
AddPreTargetHandler(speech_feedback_handler_.get());
#endif
// The order in which event filters are added is significant.
// ui::UserActivityDetector passes events to observers, so let them get
// rewritten first.
user_activity_detector_.reset(new ui::UserActivityDetector);
AddPreTargetHandler(user_activity_detector_.get());
overlay_filter_.reset(new OverlayEventFilter);
AddPreTargetHandler(overlay_filter_.get());
AddShellObserver(overlay_filter_.get());
input_method_filter_.reset(new ::wm::InputMethodEventFilter(
root_window->GetHost()->GetAcceleratedWidget()));
AddPreTargetHandler(input_method_filter_.get());
accelerator_filter_.reset(new ::wm::AcceleratorFilter(
scoped_ptr< ::wm::AcceleratorDelegate>(new AcceleratorDelegate).Pass(),
accelerator_controller_->accelerator_history()));
AddPreTargetHandler(accelerator_filter_.get());
event_transformation_handler_.reset(new EventTransformationHandler);
AddPreTargetHandler(event_transformation_handler_.get());
toplevel_window_event_handler_.reset(new ToplevelWindowEventHandler);
system_gesture_filter_.reset(new SystemGestureEventFilter);
AddPreTargetHandler(system_gesture_filter_.get());
keyboard_metrics_filter_.reset(new KeyboardUMAEventFilter);
AddPreTargetHandler(keyboard_metrics_filter_.get());
// The keyboard system must be initialized before the RootWindowController is
// created.
#if defined(OS_CHROMEOS)
keyboard::InitializeKeyboard();
#endif
#if defined(OS_CHROMEOS)
sticky_keys_controller_.reset(new StickyKeysController);
#endif
lock_state_controller_.reset(new LockStateController);
power_button_controller_.reset(new PowerButtonController(
lock_state_controller_.get()));
#if defined(OS_CHROMEOS)
// Pass the initial display state to PowerButtonController.
power_button_controller_->OnDisplayModeChanged(
display_configurator_->cached_displays());
#endif
AddShellObserver(lock_state_controller_.get());
drag_drop_controller_.reset(new DragDropController);
mouse_cursor_filter_.reset(new MouseCursorEventFilter());
PrependPreTargetHandler(mouse_cursor_filter_.get());
// Create Controllers that may need root window.
// TODO(oshima): Move as many controllers before creating
// RootWindowController as possible.
visibility_controller_.reset(new AshVisibilityController);
magnification_controller_.reset(
MagnificationController::CreateInstance());
mru_window_tracker_.reset(new MruWindowTracker(activation_client_,
focus_rules));
partial_magnification_controller_.reset(
new PartialMagnificationController());
autoclick_controller_.reset(AutoclickController::CreateInstance());
high_contrast_controller_.reset(new HighContrastController);
video_detector_.reset(new VideoDetector);
window_selector_controller_.reset(new WindowSelectorController());
window_cycle_controller_.reset(new WindowCycleController());
tooltip_controller_.reset(
new views::corewm::TooltipController(
scoped_ptr<views::corewm::Tooltip>(
new views::corewm::TooltipAura(gfx::SCREEN_TYPE_ALTERNATE))));
AddPreTargetHandler(tooltip_controller_.get());
event_client_.reset(new EventClientImpl);