blob: e702870b11cf47fe56d668f7d2f0bffd1e968a25 [file] [log] [blame]
// 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/root_window_controller.h"
#include <queue>
#include <vector>
#include "ash/aura/aura_layout_manager_adapter.h"
#include "ash/aura/wm_root_window_controller_aura.h"
#include "ash/aura/wm_shelf_aura.h"
#include "ash/aura/wm_window_aura.h"
#include "ash/common/ash_constants.h"
#include "ash/common/ash_switches.h"
#include "ash/common/focus_cycler.h"
#include "ash/common/login_status.h"
#include "ash/common/session/session_state_delegate.h"
#include "ash/common/shelf/shelf_delegate.h"
#include "ash/common/shelf/shelf_layout_manager.h"
#include "ash/common/shelf/shelf_widget.h"
#include "ash/common/shell_delegate.h"
#include "ash/common/system/status_area_layout_manager.h"
#include "ash/common/system/status_area_widget.h"
#include "ash/common/system/tray/system_tray_delegate.h"
#include "ash/common/wallpaper/wallpaper_delegate.h"
#include "ash/common/wallpaper/wallpaper_widget_controller.h"
#include "ash/common/wm/always_on_top_controller.h"
#include "ash/common/wm/container_finder.h"
#include "ash/common/wm/dock/docked_window_layout_manager.h"
#include "ash/common/wm/fullscreen_window_finder.h"
#include "ash/common/wm/panels/panel_layout_manager.h"
#include "ash/common/wm/root_window_layout_manager.h"
#include "ash/common/wm/switchable_windows.h"
#include "ash/common/wm/system_modal_container_layout_manager.h"
#include "ash/common/wm/window_state.h"
#include "ash/common/wm/workspace/workspace_layout_manager.h"
#include "ash/common/wm/workspace_controller.h"
#include "ash/common/wm_shell.h"
#include "ash/common/wm_window.h"
#include "ash/high_contrast/high_contrast_controller.h"
#include "ash/host/ash_window_tree_host.h"
#include "ash/public/cpp/shelf_types.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/root_window_settings.h"
#include "ash/shelf/shelf_window_targeter.h"
#include "ash/shell.h"
#include "ash/touch/touch_hud_debug.h"
#include "ash/touch/touch_hud_projection.h"
#include "ash/touch/touch_observer_hud.h"
#include "ash/wm/panels/attached_panel_window_targeter.h"
#include "ash/wm/panels/panel_window_event_handler.h"
#include "ash/wm/stacking_controller.h"
#include "ash/wm/system_wallpaper_controller.h"
#include "ash/wm/window_properties.h"
#include "ash/wm/window_state_aura.h"
#include "ash/wm/window_util.h"
#include "base/command_line.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/time/time.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/client/drag_drop_client.h"
#include "ui/aura/client/screen_position_client.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/aura/window_observer.h"
#include "ui/aura/window_tracker.h"
#include "ui/display/display.h"
#include "ui/display/manager/display_manager.h"
#include "ui/display/screen.h"
#include "ui/keyboard/keyboard_controller.h"
#include "ui/keyboard/keyboard_util.h"
#include "ui/views/view_model.h"
#include "ui/views/view_model_utils.h"
#include "ui/wm/core/capture_controller.h"
#include "ui/wm/core/visibility_controller.h"
#include "ui/wm/core/window_util.h"
#include "ui/wm/public/tooltip_client.h"
#include "ui/wm/public/window_types.h"
#if defined(OS_CHROMEOS)
#include "ash/ash_touch_exploration_manager_chromeos.h"
#include "ash/wm/boot_splash_screen_chromeos.h"
#include "chromeos/chromeos_switches.h"
#include "ui/chromeos/touch_exploration_controller.h"
#endif
namespace ash {
namespace {
#if defined(OS_CHROMEOS)
// Duration for the animation that hides the boot splash screen, in
// milliseconds. This should be short enough in relation to
// wm/window_animation.cc's brightness/grayscale fade animation that the login
// wallpaper image animation isn't hidden by the splash screen animation.
const int kBootSplashScreenHideDurationMs = 500;
#endif
bool IsWindowAboveContainer(aura::Window* window,
aura::Window* blocking_container) {
std::vector<aura::Window*> target_path;
std::vector<aura::Window*> blocking_path;
while (window) {
target_path.push_back(window);
window = window->parent();
}
while (blocking_container) {
blocking_path.push_back(blocking_container);
blocking_container = blocking_container->parent();
}
// The root window is put at the end so that we compare windows at
// the same depth.
while (!blocking_path.empty()) {
if (target_path.empty())
return false;
aura::Window* target = target_path.back();
target_path.pop_back();
aura::Window* blocking = blocking_path.back();
blocking_path.pop_back();
// Still on the same path, continue.
if (target == blocking)
continue;
// This can happen only if unparented window is passed because
// first element must be the same root.
if (!target->parent() || !blocking->parent())
return false;
aura::Window* common_parent = target->parent();
DCHECK_EQ(common_parent, blocking->parent());
aura::Window::Windows windows = common_parent->children();
auto blocking_iter = std::find(windows.begin(), windows.end(), blocking);
// If the target window is above blocking window, the window can handle
// events.
return std::find(blocking_iter, windows.end(), target) != windows.end();
}
return true;
}
} // namespace
void RootWindowController::CreateForPrimaryDisplay(AshWindowTreeHost* host) {
RootWindowController* controller = new RootWindowController(host);
controller->Init(RootWindowController::PRIMARY);
}
void RootWindowController::CreateForSecondaryDisplay(AshWindowTreeHost* host) {
RootWindowController* controller = new RootWindowController(host);
controller->Init(RootWindowController::SECONDARY);
}
// static
RootWindowController* RootWindowController::ForWindow(
const aura::Window* window) {
CHECK(Shell::HasInstance());
return GetRootWindowController(window->GetRootWindow());
}
// static
RootWindowController* RootWindowController::ForTargetRootWindow() {
CHECK(Shell::HasInstance());
return GetRootWindowController(Shell::GetTargetRootWindow());
}
RootWindowController::~RootWindowController() {
Shutdown();
ash_host_.reset();
// The CaptureClient needs to be around for as long as the RootWindow is
// valid.
capture_client_.reset();
}
aura::WindowTreeHost* RootWindowController::GetHost() {
return ash_host_->AsWindowTreeHost();
}
const aura::WindowTreeHost* RootWindowController::GetHost() const {
return ash_host_->AsWindowTreeHost();
}
aura::Window* RootWindowController::GetRootWindow() {
return GetHost()->window();
}
const aura::Window* RootWindowController::GetRootWindow() const {
return GetHost()->window();
}
WorkspaceController* RootWindowController::workspace_controller() {
return wm_root_window_controller_->workspace_controller();
}
void RootWindowController::Shutdown() {
WmShell::Get()->RemoveShellObserver(this);
#if defined(OS_CHROMEOS)
touch_exploration_manager_.reset();
#endif
wm_root_window_controller_->ResetRootForNewWindowsIfNecessary();
CloseChildWindows();
aura::Window* root_window = GetRootWindow();
GetRootWindowSettings(root_window)->controller = NULL;
// Forget with the display ID so that display lookup
// ends up with invalid display.
GetRootWindowSettings(root_window)->display_id =
display::Display::kInvalidDisplayID;
ash_host_->PrepareForShutdown();
system_wallpaper_.reset();
aura::client::SetScreenPositionClient(root_window, NULL);
}
bool RootWindowController::CanWindowReceiveEvents(aura::Window* window) {
if (GetRootWindow() != window->GetRootWindow())
return false;
// Always allow events to fall through to the virtual keyboard even if
// displaying a system modal dialog.
if (IsVirtualKeyboardWindow(window))
return true;
aura::Window* blocking_container = nullptr;
int modal_container_id = 0;
if (WmShell::Get()->GetSessionStateDelegate()->IsUserSessionBlocked()) {
blocking_container =
GetContainer(kShellWindowId_LockScreenContainersContainer);
modal_container_id = kShellWindowId_LockSystemModalContainer;
} else {
modal_container_id = kShellWindowId_SystemModalContainer;
}
aura::Window* modal_container = GetContainer(modal_container_id);
SystemModalContainerLayoutManager* modal_layout_manager = nullptr;
modal_layout_manager = static_cast<SystemModalContainerLayoutManager*>(
WmWindowAura::Get(modal_container)->GetLayoutManager());
if (modal_layout_manager->has_window_dimmer())
blocking_container = modal_container;
else
modal_container = nullptr; // Don't check modal dialogs.
// In normal session.
if (!blocking_container)
return true;
if (!IsWindowAboveContainer(window, blocking_container))
return false;
// If the window is in the target modal container, only allow the top most
// one.
if (modal_container && modal_container->Contains(window))
return modal_layout_manager->IsPartOfActiveModalWindow(
WmWindowAura::Get(window));
return true;
}
aura::Window* RootWindowController::GetContainer(int container_id) {
return GetRootWindow()->GetChildById(container_id);
}
const aura::Window* RootWindowController::GetContainer(int container_id) const {
return ash_host_->AsWindowTreeHost()->window()->GetChildById(container_id);
}
void RootWindowController::OnInitialWallpaperAnimationStarted() {
#if defined(OS_CHROMEOS)
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAshAnimateFromBootSplashScreen) &&
boot_splash_screen_.get()) {
// Make the splash screen fade out so it doesn't obscure the wallpaper's
// brightness/grayscale animation.
boot_splash_screen_->StartHideAnimation(
base::TimeDelta::FromMilliseconds(kBootSplashScreenHideDurationMs));
}
#endif
}
void RootWindowController::OnWallpaperAnimationFinished(views::Widget* widget) {
// Make sure the wallpaper is visible.
system_wallpaper_->SetColor(SK_ColorBLACK);
#if defined(OS_CHROMEOS)
boot_splash_screen_.reset();
#endif
}
void RootWindowController::CloseChildWindows() {
// Remove observer as deactivating keyboard causes
// docked_window_layout_manager() to fire notifications.
if (docked_window_layout_manager() &&
wm_shelf_aura_->shelf_layout_manager()) {
docked_window_layout_manager()->RemoveObserver(
wm_shelf_aura_->shelf_layout_manager());
}
// Deactivate keyboard container before closing child windows and shutting
// down associated layout managers.
DeactivateKeyboard(keyboard::KeyboardController::GetInstance());
wm_root_window_controller_->CloseChildWindows();
aura::client::SetDragDropClient(GetRootWindow(), nullptr);
aura::client::SetTooltipClient(GetRootWindow(), nullptr);
}
void RootWindowController::MoveWindowsTo(aura::Window* dst) {
wm_root_window_controller_->MoveWindowsTo(WmWindowAura::Get(dst));
}
ShelfLayoutManager* RootWindowController::GetShelfLayoutManager() {
return wm_shelf_aura_->shelf_layout_manager();
}
StatusAreaWidget* RootWindowController::GetStatusAreaWidget() {
ShelfWidget* shelf_widget = wm_shelf_aura_->shelf_widget();
return shelf_widget ? shelf_widget->status_area_widget() : nullptr;
}
SystemTray* RootWindowController::GetSystemTray() {
// We assume in throughout the code that this will not return NULL. If code
// triggers this for valid reasons, it should test status_area_widget first.
CHECK(wm_shelf_aura_->shelf_widget()->status_area_widget());
return wm_shelf_aura_->shelf_widget()->status_area_widget()->system_tray();
}
void RootWindowController::UpdateShelfVisibility() {
wm_shelf_aura_->UpdateVisibilityState();
}
aura::Window* RootWindowController::GetWindowForFullscreenMode() {
return WmWindowAura::GetAuraWindow(
wm::GetWindowForFullscreenMode(WmWindowAura::Get(GetRootWindow())));
}
void RootWindowController::ActivateKeyboard(
keyboard::KeyboardController* keyboard_controller) {
if (!keyboard::IsKeyboardEnabled() ||
GetContainer(kShellWindowId_VirtualKeyboardContainer)) {
return;
}
DCHECK(keyboard_controller);
keyboard_controller->AddObserver(wm_shelf_aura_->shelf_layout_manager());
keyboard_controller->AddObserver(panel_layout_manager());
keyboard_controller->AddObserver(docked_window_layout_manager());
keyboard_controller->AddObserver(workspace_controller()->layout_manager());
keyboard_controller->AddObserver(
wm_root_window_controller_->always_on_top_controller()
->GetLayoutManager());
WmShell::Get()->NotifyVirtualKeyboardActivated(true);
aura::Window* parent = GetContainer(kShellWindowId_ImeWindowParentContainer);
DCHECK(parent);
aura::Window* keyboard_container = keyboard_controller->GetContainerWindow();
keyboard_container->set_id(kShellWindowId_VirtualKeyboardContainer);
parent->AddChild(keyboard_container);
}
void RootWindowController::DeactivateKeyboard(
keyboard::KeyboardController* keyboard_controller) {
if (!keyboard_controller ||
!keyboard_controller->keyboard_container_initialized()) {
return;
}
aura::Window* keyboard_container = keyboard_controller->GetContainerWindow();
if (keyboard_container->GetRootWindow() == GetRootWindow()) {
aura::Window* parent =
GetContainer(kShellWindowId_ImeWindowParentContainer);
DCHECK(parent);
parent->RemoveChild(keyboard_container);
// Virtual keyboard may be deactivated while still showing, notify all
// observers that keyboard bounds changed to 0 before remove them.
keyboard_controller->NotifyKeyboardBoundsChanging(gfx::Rect());
keyboard_controller->RemoveObserver(wm_shelf_aura_->shelf_layout_manager());
keyboard_controller->RemoveObserver(panel_layout_manager());
keyboard_controller->RemoveObserver(docked_window_layout_manager());
keyboard_controller->RemoveObserver(
workspace_controller()->layout_manager());
keyboard_controller->RemoveObserver(
wm_root_window_controller_->always_on_top_controller()
->GetLayoutManager());
WmShell::Get()->NotifyVirtualKeyboardActivated(false);
}
}
bool RootWindowController::IsVirtualKeyboardWindow(aura::Window* window) {
aura::Window* parent = GetContainer(kShellWindowId_ImeWindowParentContainer);
return parent ? parent->Contains(window) : false;
}
void RootWindowController::SetTouchAccessibilityAnchorPoint(
const gfx::Point& anchor_point) {
#if defined(OS_CHROMEOS)
if (touch_exploration_manager_)
touch_exploration_manager_->SetTouchAccessibilityAnchorPoint(anchor_point);
#endif // defined(OS_CHROMEOS)
}
////////////////////////////////////////////////////////////////////////////////
// RootWindowController, private:
RootWindowController::RootWindowController(AshWindowTreeHost* ash_host)
: ash_host_(ash_host),
wm_shelf_aura_(new WmShelfAura),
touch_hud_debug_(NULL),
touch_hud_projection_(NULL) {
aura::Window* root_window = GetRootWindow();
GetRootWindowSettings(root_window)->controller = this;
// Has to happen after this is set as |controller| of RootWindowSettings.
wm_root_window_controller_ = WmRootWindowControllerAura::Get(root_window);
stacking_controller_.reset(new StackingController);
aura::client::SetWindowParentingClient(root_window,
stacking_controller_.get());
capture_client_.reset(new ::wm::ScopedCaptureClient(root_window));
}
void RootWindowController::Init(RootWindowType root_window_type) {
aura::Window* root_window = GetRootWindow();
Shell* shell = Shell::GetInstance();
shell->InitRootWindow(root_window);
wm_root_window_controller_->CreateContainers();
CreateSystemWallpaper(root_window_type);
InitLayoutManagers();
InitTouchHuds();
if (WmShell::Get()
->GetPrimaryRootWindowController()
->GetSystemModalLayoutManager(nullptr)
->has_window_dimmer()) {
wm_root_window_controller_->GetSystemModalLayoutManager(nullptr)
->CreateModalBackground();
}
WmShell::Get()->AddShellObserver(this);
wm_root_window_controller_->root_window_layout_manager()->OnWindowResized();
if (root_window_type == PRIMARY) {
shell->InitKeyboard();
} else {
ash_host_->AsWindowTreeHost()->Show();
// Create a shelf if a user is already logged in.
if (WmShell::Get()->GetSessionStateDelegate()->NumberOfLoggedInUsers())
wm_root_window_controller_->CreateShelf();
// Notify shell observers about new root window.
shell->OnRootWindowAdded(WmWindowAura::Get(root_window));
}
#if defined(OS_CHROMEOS)
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAshDisableTouchExplorationMode)) {
touch_exploration_manager_.reset(new AshTouchExplorationManager(this));
}
#endif
}
void RootWindowController::InitLayoutManagers() {
// Create the shelf and status area widgets.
DCHECK(!wm_shelf_aura_->shelf_widget());
aura::Window* shelf_container = GetContainer(kShellWindowId_ShelfContainer);
aura::Window* status_container = GetContainer(kShellWindowId_StatusContainer);
WmWindow* wm_shelf_container = WmWindowAura::Get(shelf_container);
WmWindow* wm_status_container = WmWindowAura::Get(status_container);
wm_root_window_controller_->CreateLayoutManagers();
// Make it easier to resize windows that partially overlap the shelf. Must
// occur after the ShelfLayoutManager is constructed by ShelfWidget.
shelf_container->SetEventTargeter(base::MakeUnique<ShelfWindowTargeter>(
wm_shelf_container, wm_shelf_aura_.get()));
status_container->SetEventTargeter(base::MakeUnique<ShelfWindowTargeter>(
wm_status_container, wm_shelf_aura_.get()));
panel_container_handler_ = base::MakeUnique<PanelWindowEventHandler>();
GetContainer(kShellWindowId_PanelContainer)
->AddPreTargetHandler(panel_container_handler_.get());
// Install an AttachedPanelWindowTargeter on the panel container to make it
// easier to correctly target shelf buttons with touch.
gfx::Insets mouse_extend(-kResizeOutsideBoundsSize, -kResizeOutsideBoundsSize,
-kResizeOutsideBoundsSize,
-kResizeOutsideBoundsSize);
gfx::Insets touch_extend =
mouse_extend.Scale(kResizeOutsideBoundsScaleForTouch);
aura::Window* panel_container = GetContainer(kShellWindowId_PanelContainer);
panel_container->SetEventTargeter(std::unique_ptr<ui::EventTargeter>(
new AttachedPanelWindowTargeter(panel_container, mouse_extend,
touch_extend, panel_layout_manager())));
}
void RootWindowController::InitTouchHuds() {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(switches::kAshTouchHud))
set_touch_hud_debug(new TouchHudDebug(GetRootWindow()));
if (Shell::GetInstance()->is_touch_hud_projection_enabled())
EnableTouchHudProjection();
}
void RootWindowController::CreateSystemWallpaper(
RootWindowType root_window_type) {
SkColor color = SK_ColorBLACK;
#if defined(OS_CHROMEOS)
// The splash screen appears on the primary display at boot. If this is a
// secondary monitor (either connected at boot or connected later) or if the
// browser restarted for a second login then don't use the boot color.
const bool is_boot_splash_screen =
root_window_type == PRIMARY &&
base::CommandLine::ForCurrentProcess()->HasSwitch(
chromeos::switches::kFirstExecAfterBoot);
if (is_boot_splash_screen)
color = kChromeOsBootColor;
#endif
system_wallpaper_.reset(
new SystemWallpaperController(GetRootWindow(), color));
#if defined(OS_CHROMEOS)
// Make a copy of the system's boot splash screen so we can composite it
// onscreen until the wallpaper is ready.
if (is_boot_splash_screen &&
(base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAshCopyHostBackgroundAtBoot) ||
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAshAnimateFromBootSplashScreen)))
boot_splash_screen_.reset(new BootSplashScreen(GetHost()));
#endif
}
void RootWindowController::EnableTouchHudProjection() {
if (touch_hud_projection_)
return;
set_touch_hud_projection(new TouchHudProjection(GetRootWindow()));
}
void RootWindowController::DisableTouchHudProjection() {
if (!touch_hud_projection_)
return;
touch_hud_projection_->Remove();
}
DockedWindowLayoutManager*
RootWindowController::docked_window_layout_manager() {
return wm_root_window_controller_->docked_window_layout_manager();
}
PanelLayoutManager* RootWindowController::panel_layout_manager() {
return wm_root_window_controller_->panel_layout_manager();
}
void RootWindowController::OnLoginStateChanged(LoginStatus status) {
wm_shelf_aura_->UpdateVisibilityState();
}
void RootWindowController::OnTouchHudProjectionToggled(bool enabled) {
if (enabled)
EnableTouchHudProjection();
else
DisableTouchHudProjection();
}
RootWindowController* GetRootWindowController(const aura::Window* root_window) {
return root_window ? GetRootWindowSettings(root_window)->controller : nullptr;
}
} // namespace ash