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root_window_controller.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/root_window_controller.h"
#include <algorithm>
#include <memory>
#include <queue>
#include <vector>
#include "ash/accessibility/accessibility_panel_layout_manager.h"
#include "ash/accessibility/touch_exploration_controller.h"
#include "ash/accessibility/touch_exploration_manager.h"
#include "ash/app_menu/app_menu_model_adapter.h"
#include "ash/focus_cycler.h"
#include "ash/high_contrast/high_contrast_controller.h"
#include "ash/host/ash_window_tree_host.h"
#include "ash/keyboard/arc/arc_virtual_keyboard_container_layout_manager.h"
#include "ash/keyboard/keyboard_controller_impl.h"
#include "ash/keyboard/ui/keyboard_layout_manager.h"
#include "ash/keyboard/ui/keyboard_ui_controller.h"
#include "ash/keyboard/ui/keyboard_util.h"
#include "ash/keyboard/virtual_keyboard_container_layout_manager.h"
#include "ash/lock_screen_action/lock_screen_action_background_controller.h"
#include "ash/login_status.h"
#include "ash/public/cpp/ash_constants.h"
#include "ash/public/cpp/ash_switches.h"
#include "ash/public/cpp/shelf_types.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/public/cpp/window_properties.h"
#include "ash/root_window_settings.h"
#include "ash/screen_util.h"
#include "ash/session/session_controller_impl.h"
#include "ash/shelf/shelf.h"
#include "ash/shelf/shelf_context_menu_model.h"
#include "ash/shelf/shelf_layout_manager.h"
#include "ash/shelf/shelf_widget.h"
#include "ash/shelf/shelf_window_targeter.h"
#include "ash/shell.h"
#include "ash/system/status_area_widget.h"
#include "ash/system/tray/tray_background_view.h"
#include "ash/system/unified/unified_system_tray.h"
#include "ash/touch/touch_hud_debug.h"
#include "ash/touch/touch_hud_projection.h"
#include "ash/touch/touch_observer_hud.h"
#include "ash/wallpaper/wallpaper_widget_controller.h"
#include "ash/window_factory.h"
#include "ash/wm/always_on_top_controller.h"
#include "ash/wm/container_finder.h"
#include "ash/wm/desks/desks_controller.h"
#include "ash/wm/desks/desks_util.h"
#include "ash/wm/fullscreen_window_finder.h"
#include "ash/wm/lock_action_handler_layout_manager.h"
#include "ash/wm/lock_layout_manager.h"
#include "ash/wm/mru_window_tracker.h"
#include "ash/wm/overlay_layout_manager.h"
#include "ash/wm/overview/overview_controller.h"
#include "ash/wm/overview/overview_session.h"
#include "ash/wm/root_window_layout_manager.h"
#include "ash/wm/splitview/split_view_controller.h"
#include "ash/wm/splitview/split_view_utils.h"
#include "ash/wm/stacking_controller.h"
#include "ash/wm/switchable_windows.h"
#include "ash/wm/system_modal_container_layout_manager.h"
#include "ash/wm/system_wallpaper_controller.h"
#include "ash/wm/tablet_mode/tablet_mode_controller.h"
#include "ash/wm/window_properties.h"
#include "ash/wm/window_state.h"
#include "ash/wm/window_util.h"
#include "ash/wm/work_area_insets.h"
#include "ash/wm/workspace/workspace_layout_manager.h"
#include "ash/wm/workspace_controller.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/metrics/histogram_macros.h"
#include "base/numerics/ranges.h"
#include "base/stl_util.h"
#include "base/time/time.h"
#include "chromeos/constants/chromeos_features.h"
#include "chromeos/constants/chromeos_switches.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/client/window_types.h"
#include "ui/aura/null_window_targeter.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/base/models/menu_model.h"
#include "ui/compositor/layer.h"
#include "ui/display/types/display_constants.h"
#include "ui/events/event_utils.h"
#include "ui/views/controls/menu/menu_model_adapter.h"
#include "ui/views/controls/menu/menu_runner.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/coordinate_conversion.h"
#include "ui/wm/core/visibility_controller.h"
#include "ui/wm/core/window_properties.h"
#include "ui/wm/core/window_util.h"
#include "ui/wm/public/tooltip_client.h"
namespace ash {
namespace {
bool IsInShelfContainer(aura::Window* container) {
if (!container)
return false;
int id = container->id();
if (id == ash::kShellWindowId_ShelfContainer ||
id == ash::kShellWindowId_ShelfBubbleContainer) {
return true;
}
return IsInShelfContainer(container->parent());
}
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());
const 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;
}
// Scales |value| that is originally between 0 and |src_max| to be between
// 0 and |dst_max|.
float ToRelativeValue(int value, int src_max, int dst_max) {
return static_cast<float>(value) / static_cast<float>(src_max) * dst_max;
}
// Uses ToRelativeValue() to scale the origin of |bounds_in_out|. The
// width/height are not changed.
void MoveOriginRelativeToSize(const gfx::Size& src_size,
const gfx::Size& dst_size,
gfx::Rect* bounds_in_out) {
gfx::Point origin = bounds_in_out->origin();
bounds_in_out->set_origin(gfx::Point(
ToRelativeValue(origin.x(), src_size.width(), dst_size.width()),
ToRelativeValue(origin.y(), src_size.height(), dst_size.height())));
}
// Reparents |window| to |new_parent|.
void ReparentWindow(aura::Window* window, aura::Window* new_parent) {
const gfx::Size src_size = window->parent()->bounds().size();
const gfx::Size dst_size = new_parent->bounds().size();
// Update the restore bounds to make it relative to the display.
WindowState* state = WindowState::Get(window);
gfx::Rect restore_bounds;
const bool has_restore_bounds = state && state->HasRestoreBounds();
const bool update_bounds =
state && (state->IsNormalOrSnapped() || state->IsMinimized());
gfx::Rect work_area_in_new_parent =
screen_util::GetDisplayWorkAreaBoundsInParent(new_parent);
gfx::Rect local_bounds;
if (update_bounds) {
local_bounds = state->window()->bounds();
MoveOriginRelativeToSize(src_size, dst_size, &local_bounds);
local_bounds.AdjustToFit(work_area_in_new_parent);
}
if (has_restore_bounds) {
restore_bounds = state->GetRestoreBoundsInParent();
MoveOriginRelativeToSize(src_size, dst_size, &restore_bounds);
restore_bounds.AdjustToFit(work_area_in_new_parent);
}
new_parent->AddChild(window);
// Docked windows have bounds handled by the layout manager in AddChild().
if (update_bounds)
window->SetBounds(local_bounds);
if (has_restore_bounds)
state->SetRestoreBoundsInParent(restore_bounds);
}
// Reparents the appropriate set of windows from |src| to |dst|.
void ReparentAllWindows(aura::Window* src, aura::Window* dst) {
// Set of windows to move.
constexpr int kContainerIdsToMove[] = {
kShellWindowId_DefaultContainerDeprecated,
kShellWindowId_DeskContainerB,
kShellWindowId_DeskContainerC,
kShellWindowId_DeskContainerD,
kShellWindowId_AlwaysOnTopContainer,
kShellWindowId_PipContainer,
kShellWindowId_SystemModalContainer,
kShellWindowId_LockSystemModalContainer,
kShellWindowId_UnparentedControlContainer,
kShellWindowId_OverlayContainer,
kShellWindowId_LockActionHandlerContainer,
};
constexpr int kExtraContainerIdsToMoveInUnifiedMode[] = {
kShellWindowId_LockScreenContainer,
};
std::vector<int> container_ids{std::begin(kContainerIdsToMove),
std::end(kContainerIdsToMove)};
// Check the display mode as this is also necessary when trasitioning between
// mirror and unified mode.
if (Shell::Get()->display_manager()->current_default_multi_display_mode() ==
display::DisplayManager::UNIFIED) {
for (const int id : kExtraContainerIdsToMoveInUnifiedMode)
container_ids.emplace_back(id);
}
const std::vector<aura::Window*> mru_list =
Shell::Get()->mru_window_tracker()->BuildWindowForCycleList(kAllDesks);
for (int id : container_ids) {
aura::Window* src_container = src->GetChildById(id);
aura::Window* dst_container = dst->GetChildById(id);
const bool switchable_container = IsSwitchableContainer(src_container);
while (!src_container->children().empty()) {
// Restart iteration from the source container windows each time as they
// may change as a result of moving other windows.
const aura::Window::Windows& src_container_children =
src_container->children();
auto iter = src_container_children.rbegin();
while (iter != src_container_children.rend() &&
SystemModalContainerLayoutManager::IsModalBackground(*iter)) {
++iter;
}
// If the entire window list is modal background windows then stop.
if (iter == src_container_children.rend())
break;
// |iter| is invalidated after ReparentWindow. Cache it to use afterwards.
aura::Window* const window = *iter;
ReparentWindow(window, dst_container);
aura::Window* stacking_target = nullptr;
if (switchable_container) {
// Find the first window that comes after |window| in the MRU list that
// shares the same parent.
bool found_window = false;
for (aura::Window* window_iter : mru_list) {
// First determine the position of |window| in the |mru_list|.
if (!found_window && window == window_iter) {
found_window = true;
continue;
}
if (!found_window || window_iter->parent() != dst_container)
continue;
// Once |window| is found, the next item in |mru_list| with the same
// parent (container) is the stacking target.
stacking_target = window_iter;
break;
}
}
// |stacking_target| may be null if |switchable_container| is false, which
// means the children of that container wouldn't be in the MRU list or if
// |window| was the last item in the MRU list with parent id |id|. In
// this case stack |window| at the bottom.
if (stacking_target)
dst_container->StackChildAbove(window, stacking_target);
else
dst_container->StackChildAtBottom(window);
}
}
}
bool ShouldDestroyWindowInCloseChildWindows(aura::Window* window) {
return window->owned_by_parent();
}
// Clears the workspace controllers from the properties of all virtual desks
// containers in |root|.
void ClearWorkspaceControllers(aura::Window* root) {
for (auto* desk_container : desks_util::GetDesksContainers(root))
SetWorkspaceController(desk_container, nullptr);
}
class RootWindowTargeter : public aura::WindowTargeter {
public:
RootWindowTargeter() = default;
~RootWindowTargeter() override = default;
protected:
aura::Window* FindTargetForLocatedEvent(aura::Window* window,
ui::LocatedEvent* event) override {
if (!window->parent() && !window->bounds().Contains(event->location()) &&
IsEventInsideDisplayForTelemetryHack(window, event)) {
auto* dispatcher = window->GetHost()->dispatcher();
bool has_capture_target = !!dispatcher->mouse_pressed_handler() ||
!!aura::client::GetCaptureWindow(window);
// Make sure that event location is within the root window bounds if
// 1) mouse event isn't captured.
// 2) A mouse is clicked without movement and capture.
//
// The event can be outside on some scale factor due to rounding, or due
// to not well calibrated a touch screen, or Detect this situation and
// adjust the location.
bool bounded_click = ShouldConstrainMouseClick(event, has_capture_target);
if (!has_capture_target || bounded_click) {
gfx::Point new_location =
FitPointToBounds(event->location(), window->bounds());
// Do not change |location_f|. It's used to compute pixel position and
// such client should know what they're doing.
event->set_location(new_location);
event->set_root_location(new_location);
}
}
return aura::WindowTargeter::FindTargetForLocatedEvent(window, event);
}
// Stop-gap workaround for telemetry tests that send events far outside of the
// display (e.g. 512, -4711). Fix the test and remove this (crbgu.com/904623).
bool IsEventInsideDisplayForTelemetryHack(aura::Window* window,
ui::LocatedEvent* event) {
constexpr int ExtraMarginForTelemetryTest = -10;
gfx::Rect bounds = window->bounds();
bounds.Inset(ExtraMarginForTelemetryTest, ExtraMarginForTelemetryTest);
return bounds.Contains(event->location());
}
private:
// Returns true if the mouse event should be constrainted.
bool ShouldConstrainMouseClick(ui::LocatedEvent* event,
bool has_capture_target) {
if (event->type() == ui::ET_MOUSE_PRESSED && !has_capture_target) {
last_mouse_event_type_ = ui::ET_MOUSE_PRESSED;
return true;
}
if (last_mouse_event_type_ == ui::ET_MOUSE_PRESSED &&
event->type() == ui::ET_MOUSE_RELEASED && has_capture_target) {
last_mouse_event_type_ = ui::ET_UNKNOWN;
return true;
}
// For other cases, reset the state
if (event->type() != ui::ET_MOUSE_CAPTURE_CHANGED)
last_mouse_event_type_ = ui::ET_UNKNOWN;
return false;
}
gfx::Point FitPointToBounds(const gfx::Point p, const gfx::Rect& bounds) {
return gfx::Point(
base::ClampToRange(p.x(), bounds.x(), bounds.right() - 1),
base::ClampToRange(p.y(), bounds.y(), bounds.bottom() - 1));
}
ui::EventType last_mouse_event_type_ = ui::ET_UNKNOWN;
DISALLOW_COPY_AND_ASSIGN(RootWindowTargeter);
};
class RootWindowMenuModelAdapter : public AppMenuModelAdapter {
public:
RootWindowMenuModelAdapter(std::unique_ptr<ui::SimpleMenuModel> model,
views::Widget* widget_owner,
ui::MenuSourceType source_type,
base::OnceClosure on_menu_closed_callback,
bool is_tablet_mode)
: AppMenuModelAdapter(std::string(),
std::move(model),
widget_owner,
source_type,
std::move(on_menu_closed_callback),
is_tablet_mode) {}
~RootWindowMenuModelAdapter() override = default;
private:
// AppMenuModelAdapter overrides:
void RecordHistogramOnMenuClosed() override {
const base::TimeDelta user_journey_time =
base::TimeTicks::Now() - menu_open_time();
UMA_HISTOGRAM_TIMES("Apps.ContextMenuUserJourneyTime.Desktop",
user_journey_time);
UMA_HISTOGRAM_ENUMERATION("Apps.ContextMenuShowSource.Desktop",
source_type(), ui::MENU_SOURCE_TYPE_LAST);
if (is_tablet_mode()) {
UMA_HISTOGRAM_TIMES("Apps.ContextMenuUserJourneyTime.Desktop.TabletMode",
user_journey_time);
UMA_HISTOGRAM_ENUMERATION("Apps.ContextMenuShowSource.Desktop.TabletMode",
source_type(), ui::MENU_SOURCE_TYPE_LAST);
} else {
UMA_HISTOGRAM_TIMES(
"Apps.ContextMenuUserJourneyTime.Desktop.ClamshellMode",
user_journey_time);
UMA_HISTOGRAM_ENUMERATION(
"Apps.ContextMenuShowSource.Desktop.ClamshellMode", source_type(),
ui::MENU_SOURCE_TYPE_LAST);
}
}
DISALLOW_COPY_AND_ASSIGN(RootWindowMenuModelAdapter);
};
// A layout manager that fills its container when the child window's resize
// behavior is set to be maximizable.
class FillLayoutManager : public aura::LayoutManager {
public:
explicit FillLayoutManager(aura::Window* container) : container_(container) {}
~FillLayoutManager() override = default;
FillLayoutManager(const FillLayoutManager&) = delete;
FillLayoutManager& operator=(const FillLayoutManager&) = delete;
// aura::LayoutManager:
void OnWindowResized() override { Relayout(); }
void OnWindowAddedToLayout(aura::Window* child) override { Relayout(); }
void OnWillRemoveWindowFromLayout(aura::Window* child) override {}
void OnWindowRemovedFromLayout(aura::Window* child) override {}
void OnChildWindowVisibilityChanged(aura::Window* child,
bool visible) override {}
void SetChildBounds(aura::Window* child,
const gfx::Rect& requested_bounds) override {}
private:
void Relayout() {
// Fill the window that is set to be maximizable.
const gfx::Rect fullscreen(container_->bounds().size());
for (auto* child : container_->children()) {
const int resize_behavior =
child->GetProperty(aura::client::kResizeBehaviorKey);
if (resize_behavior & aura::client::kResizeBehaviorCanMaximize)
SetChildBoundsDirect(child, fullscreen);
}
}
aura::Window* container_;
};
} // namespace
// static
std::vector<RootWindowController*>*
RootWindowController::root_window_controllers_ = nullptr;
RootWindowController::~RootWindowController() {
Shutdown();
DCHECK(!wallpaper_widget_controller_.get());
work_area_insets_.reset();
ash_host_.reset();
// The CaptureClient needs to be around for as long as the RootWindow is
// valid.
capture_client_.reset();
root_window_controllers_->erase(std::find(root_window_controllers_->begin(),
root_window_controllers_->end(),
this));
}
RootWindowController* RootWindowController::CreateForPrimaryDisplay(
AshWindowTreeHost* host) {
RootWindowController* controller = new RootWindowController(host);
controller->Init(RootWindowType::PRIMARY);
return controller;
}
RootWindowController* RootWindowController::CreateForSecondaryDisplay(
AshWindowTreeHost* host) {
RootWindowController* controller = new RootWindowController(host);
controller->Init(RootWindowType::SECONDARY);
return controller;
}
// static
RootWindowController* RootWindowController::ForWindow(
const aura::Window* window) {
DCHECK(window);
CHECK(Shell::HasInstance());
return GetRootWindowSettings(window->GetRootWindow())->controller;
}
// static
RootWindowController* RootWindowController::ForTargetRootWindow() {
CHECK(Shell::HasInstance());
return ForWindow(Shell::GetRootWindowForNewWindows());
}
aura::WindowTreeHost* RootWindowController::GetHost() {
return window_tree_host_;
}
const aura::WindowTreeHost* RootWindowController::GetHost() const {
return window_tree_host_;
}
aura::Window* RootWindowController::GetRootWindow() {
return GetHost()->window();
}
const aura::Window* RootWindowController::GetRootWindow() const {
return GetHost()->window();
}
void RootWindowController::InitializeShelf() {
if (shelf_initialized_)
return;
shelf_initialized_ = true;
shelf_->shelf_widget()->PostCreateShelf();
}
ShelfLayoutManager* RootWindowController::GetShelfLayoutManager() {
return shelf_->shelf_layout_manager();
}
SystemModalContainerLayoutManager*
RootWindowController::GetSystemModalLayoutManager(aura::Window* window) {
aura::Window* modal_container = nullptr;
if (window) {
aura::Window* window_container = GetContainerForWindow(window);
if (window_container &&
window_container->id() >= kShellWindowId_LockScreenContainer) {
modal_container = GetContainer(kShellWindowId_LockSystemModalContainer);
} else {
modal_container = GetContainer(kShellWindowId_SystemModalContainer);
}
} else {
int modal_window_id =
Shell::Get()->session_controller()->IsUserSessionBlocked()
? kShellWindowId_LockSystemModalContainer
: kShellWindowId_SystemModalContainer;
modal_container = GetContainer(modal_window_id);
}
return modal_container ? static_cast<SystemModalContainerLayoutManager*>(
modal_container->layout_manager())
: nullptr;
}
StatusAreaWidget* RootWindowController::GetStatusAreaWidget() {
ShelfWidget* shelf_widget = shelf_->shelf_widget();
return shelf_widget ? shelf_widget->status_area_widget() : nullptr;
}
bool RootWindowController::IsSystemTrayVisible() {
TrayBackgroundView* tray = GetStatusAreaWidget()->unified_system_tray();
return tray && tray->GetWidget()->IsVisible() && tray->GetVisible();
}
bool RootWindowController::CanWindowReceiveEvents(aura::Window* window) {
if (GetRootWindow() != window->GetRootWindow())
return false;
aura::Window* blocking_container = nullptr;
aura::Window* modal_container = nullptr;
window_util::GetBlockingContainersForRoot(
GetRootWindow(), &blocking_container, &modal_container);
SystemModalContainerLayoutManager* modal_layout_manager = nullptr;
modal_layout_manager = static_cast<SystemModalContainerLayoutManager*>(
modal_container->layout_manager());
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 (modal_container) {
// If the window is in the target modal container, only allow the top most
// one.
if (modal_container->Contains(window))
return modal_layout_manager->IsPartOfActiveModalWindow(window);
// Don't allow shelf to process events if there is a visible modal dialog.
if (IsInShelfContainer(window->parent()))
return false;
}
return true;
}
aura::Window* RootWindowController::FindEventTarget(
const gfx::Point& location_in_screen) {
gfx::Point location_in_root(location_in_screen);
aura::Window* root_window = GetRootWindow();
::wm::ConvertPointFromScreen(root_window, &location_in_root);
ui::MouseEvent test_event(ui::ET_MOUSE_MOVED, location_in_root,
location_in_root, ui::EventTimeForNow(),
ui::EF_NONE, ui::EF_NONE);
ui::EventTarget* event_handler =
root_window->GetHost()
->dispatcher()
->GetDefaultEventTargeter()
->FindTargetForEvent(root_window, &test_event);
return static_cast<aura::Window*>(event_handler);
}
gfx::Point RootWindowController::GetLastMouseLocationInRoot() {
return window_tree_host_->dispatcher()->GetLastMouseLocationInRoot();
}
aura::Window* RootWindowController::GetContainer(int container_id) {
return GetRootWindow()->GetChildById(container_id);
}
const aura::Window* RootWindowController::GetContainer(int container_id) const {
return window_tree_host_->window()->GetChildById(container_id);
}
void RootWindowController::Shutdown() {
auto targeter = GetRootWindow()->SetEventTargeter(
std::make_unique<aura::NullWindowTargeter>());
touch_exploration_manager_.reset();
wallpaper_widget_controller_.reset();
CloseChildWindows();
aura::Window* root_window = GetRootWindow();
GetRootWindowSettings(root_window)->controller = nullptr;
// Forget with the display ID so that display lookup
// ends up with invalid display.
GetRootWindowSettings(root_window)->display_id = display::kInvalidDisplayId;
if (ash_host_)
ash_host_->PrepareForShutdown();
system_wallpaper_.reset();
lock_screen_action_background_controller_.reset();
aura::client::SetScreenPositionClient(root_window, nullptr);
// The targeter may still on the stack, so delete it later.
if (targeter) {
base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE,
std::move(targeter));
}
}
void RootWindowController::CloseChildWindows() {
// Child windows can be closed by secondary monitor disconnection, Shell
// shutdown, or both. Avoid running the related cleanup code twice.
if (did_close_child_windows_)
return;
did_close_child_windows_ = true;
aura::Window* root = GetRootWindow();
Shell::Get()->desks_controller()->OnRootWindowClosing(root);
// Notify the keyboard controller before closing child windows and shutting
// down associated layout managers.
Shell::Get()->keyboard_controller()->OnRootWindowClosing(root);
OverviewController* overview_controller = Shell::Get()->overview_controller();
if (overview_controller && overview_controller->InOverviewSession())
overview_controller->overview_session()->OnRootWindowClosing(root);
shelf_->ShutdownShelfWidget();
ClearWorkspaceControllers(root);
// Explicitly destroy top level windows. We do this because such windows may
// query the RootWindow for state.
aura::WindowTracker non_toplevel_windows;
non_toplevel_windows.Add(root);
while (!non_toplevel_windows.windows().empty()) {
aura::Window* non_toplevel_window = non_toplevel_windows.Pop();
aura::WindowTracker toplevel_windows;
for (aura::Window* child : non_toplevel_window->children()) {
if (!ShouldDestroyWindowInCloseChildWindows(child))
continue;
if (child->delegate())
toplevel_windows.Add(child);
else
non_toplevel_windows.Add(child);
}
while (!toplevel_windows.windows().empty())
delete toplevel_windows.Pop();
}
// Reset layout manager so that it won't fire unnecessary layout evetns.
root->SetLayoutManager(nullptr);
// And then remove the containers.
while (!root->children().empty()) {
aura::Window* child = root->children()[0];
if (ShouldDestroyWindowInCloseChildWindows(child))
delete child;
else
root->RemoveChild(child);
}
// Removing the containers destroys ShelfLayoutManager. ShelfWidget outlives
// ShelfLayoutManager because ShelfLayoutManager holds a pointer to it.
shelf_->DestroyShelfWidget();
::wm::SetTooltipClient(GetRootWindow(), nullptr);
}
void RootWindowController::MoveWindowsTo(aura::Window* dst) {
// Suspend unnecessary updates of the shelf visibility indefinitely since it
// is going away.
if (GetShelfLayoutManager())
GetShelfLayoutManager()->SuspendVisibilityUpdateForShutdown();
// Clear the workspace controller to avoid a lot of unnecessary operations
// when window are removed.
// TODO(afakhry): Should we also clear the WorkspaceLayoutManagers of the pip,
// always-on-top, and other containers?
aura::Window* root = GetRootWindow();
ClearWorkspaceControllers(root);
ReparentAllWindows(root, dst);
}
void RootWindowController::UpdateShelfVisibility() {
shelf_->UpdateVisibilityState();
}
void RootWindowController::InitTouchHuds() {
// Enable touch debugging features when each display is initialized.
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(switches::kAshTouchHud))
set_touch_hud_debug(new TouchHudDebug(GetRootWindow()));
// TouchHudProjection manages its own lifetime.
if (command_line->HasSwitch(switches::kShowTaps))
touch_hud_projection_ = new TouchHudProjection(GetRootWindow());
}
aura::Window* RootWindowController::GetWindowForFullscreenMode() {
return GetWindowForFullscreenModeInRoot(GetRootWindow());
}
bool RootWindowController::IsInFullscreenMode() {
auto* window = GetWindowForFullscreenMode();
return window && WindowState::Get(window)->GetHideShelfWhenFullscreen();
}
void RootWindowController::SetTouchAccessibilityAnchorPoint(
const gfx::Point& anchor_point) {
if (touch_exploration_manager_)
touch_exploration_manager_->SetTouchAccessibilityAnchorPoint(anchor_point);
}
void RootWindowController::ShowContextMenu(const gfx::Point& location_in_screen,
ui::MenuSourceType source_type) {
const int64_t display_id = display::Screen::GetScreen()
->GetDisplayNearestWindow(GetRootWindow())
.id();
root_window_menu_model_adapter_ =
std::make_unique<RootWindowMenuModelAdapter>(
std::make_unique<ShelfContextMenuModel>(nullptr, display_id),
wallpaper_widget_controller()->GetWidget(), source_type,
base::BindOnce(&RootWindowController::OnMenuClosed,
base::Unretained(this)),
Shell::Get()->tablet_mode_controller()->InTabletMode());
root_window_menu_model_adapter_->Run(
gfx::Rect(location_in_screen, gfx::Size()),
views::MenuAnchorPosition::kBubbleRight,
views::MenuRunner::CONTEXT_MENU |
views::MenuRunner::USE_TOUCHABLE_LAYOUT |
views::MenuRunner::FIXED_ANCHOR);
}
void RootWindowController::HideContextMenu() {
if (root_window_menu_model_adapter_)
root_window_menu_model_adapter_->Cancel();
}
bool RootWindowController::IsContextMenuShown() const {
return root_window_menu_model_adapter_ &&
root_window_menu_model_adapter_->IsShowingMenu();
}
void RootWindowController::UpdateAfterLoginStatusChange(LoginStatus status) {
StatusAreaWidget* status_area_widget =
shelf_->shelf_widget()->status_area_widget();
if (status_area_widget)
status_area_widget->UpdateAfterLoginStatusChange(status);
}
AccessibilityPanelLayoutManager*
RootWindowController::GetAccessibilityPanelLayoutManagerForTest() {
return GetAccessibilityPanelLayoutManager();
}
////////////////////////////////////////////////////////////////////////////////
// RootWindowController, private:
RootWindowController::RootWindowController(AshWindowTreeHost* ash_host)
: ash_host_(ash_host),
window_tree_host_(ash_host->AsWindowTreeHost()),
shelf_(std::make_unique<Shelf>()),
lock_screen_action_background_controller_(
LockScreenActionBackgroundController::Create()),
work_area_insets_(std::make_unique<WorkAreaInsets>(this)) {
DCHECK(ash_host_);
DCHECK(window_tree_host_);
if (!root_window_controllers_)
root_window_controllers_ = new std::vector<RootWindowController*>;
root_window_controllers_->push_back(this);
aura::Window* root_window = GetRootWindow();
GetRootWindowSettings(root_window)->controller = this;
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();
// If the |ash::features::kMultiDisplayOverviewAndSplitView| feature flag is
// enabled, create |split_view_controller_| for every display. Otherwise,
// create |split_view_controller_| for the primary display only.
display::Screen* screen = display::Screen::GetScreen();
if (AreMultiDisplayOverviewAndSplitViewEnabled() ||
screen->GetDisplayNearestWindow(root_window).id() ==
screen->GetPrimaryDisplay().id()) {
split_view_controller_ = std::make_unique<SplitViewController>(root_window);
}
Shell* shell = Shell::Get();
shell->InitRootWindow(root_window);
auto old_targeter =
root_window->SetEventTargeter(std::make_unique<RootWindowTargeter>());
DCHECK(!old_targeter);
CreateContainers();
CreateSystemWallpaper(root_window_type);
InitLayoutManagers();
InitTouchHuds();
InitializeShelf();
if (Shell::GetPrimaryRootWindowController()
->GetSystemModalLayoutManager(nullptr)
->has_window_dimmer()) {
GetSystemModalLayoutManager(nullptr)->CreateModalBackground();
}
wallpaper_widget_controller_ = std::make_unique<WallpaperWidgetController>(
root_window,
base::BindOnce(&RootWindowController::OnFirstWallpaperWidgetSet,
base::Unretained(this)));
int container = Shell::Get()->session_controller()->IsUserSessionBlocked()
? kShellWindowId_LockScreenWallpaperContainer
: kShellWindowId_WallpaperContainer;
wallpaper_widget_controller_->Init(container);
root_window_layout_manager_->OnWindowResized();
// Explicitly update the desks controller before notifying the ShellObservers.
// This is to make sure the desks' states are correct before clients are
// updated.
Shell::Get()->desks_controller()->OnRootWindowAdded(root_window);
if (root_window_type == RootWindowType::PRIMARY) {
shell->keyboard_controller()->RebuildKeyboardIfEnabled();
} else {
window_tree_host_->Show();
// Notify shell observers about new root window.
shell->OnRootWindowAdded(root_window);
}
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAshDisableTouchExplorationMode)) {
touch_exploration_manager_ =
std::make_unique<TouchExplorationManager>(this);
}
}
void RootWindowController::InitLayoutManagers() {
// Create the shelf and status area widgets. Creates the ShelfLayoutManager
// as a side-effect.
DCHECK(!shelf_->shelf_widget());
aura::Window* root = GetRootWindow();
shelf_->CreateShelfWidget(root);
root->SetLayoutManager(root_window_layout_manager_);
for (auto* container : desks_util::GetDesksContainers(root)) {
// Installs WorkspaceLayoutManager on the container.
SetWorkspaceController(container, new WorkspaceController(container));
}
aura::Window* modal_container =
GetContainer(kShellWindowId_SystemModalContainer);
modal_container->SetLayoutManager(
new SystemModalContainerLayoutManager(modal_container));
aura::Window* lock_modal_container =
GetContainer(kShellWindowId_LockSystemModalContainer);
DCHECK(lock_modal_container);
lock_modal_container->SetLayoutManager(
new SystemModalContainerLayoutManager(lock_modal_container));
aura::Window* lock_action_handler_container =
GetContainer(kShellWindowId_LockActionHandlerContainer);
DCHECK(lock_action_handler_container);
lock_screen_action_background_controller_->SetParentWindow(
lock_action_handler_container);
lock_action_handler_container->SetLayoutManager(
new LockActionHandlerLayoutManager(
lock_action_handler_container, shelf_.get(),
lock_screen_action_background_controller_.get()));
aura::Window* lock_container =
GetContainer(kShellWindowId_LockScreenContainer);
DCHECK(lock_container);
lock_container->SetLayoutManager(
new LockLayoutManager(lock_container, shelf_.get()));
aura::Window* always_on_top_container =
GetContainer(kShellWindowId_AlwaysOnTopContainer);
aura::Window* pip_container = GetContainer(kShellWindowId_PipContainer);
DCHECK(always_on_top_container);
DCHECK(pip_container);
always_on_top_controller_ = std::make_unique<AlwaysOnTopController>(
always_on_top_container, pip_container);
// Make it easier to resize windows that partially overlap the shelf. Must
// occur after the ShelfLayoutManager is constructed by ShelfWidget.
aura::Window* shelf_container = GetContainer(kShellWindowId_ShelfContainer);
shelf_container->SetEventTargeter(
std::make_unique<ShelfWindowTargeter>(shelf_container, shelf_.get()));
}
void RootWindowController::CreateContainers() {
aura::Window* root = GetRootWindow();
root_window_layout_manager_ = new RootWindowLayoutManager(root);
// Add a NOT_DRAWN layer in between the root_window's layer and its current
// children so that we only need to initiate two LayerAnimationSequences for
// fullscreen animations such as the screen rotation animation and the desk
// switch animation. Those animations take a screenshot of this container,
// stack it ontop and animate the screenshot instead of the individual
// elements.
aura::Window* screen_rotation_container =
CreateContainer(kShellWindowId_ScreenAnimationContainer,
"ScreenAnimationContainer", root);
// Everything that needs to be included in the docked magnifier, when enabled,
// should be a descendant of MagnifiedContainer. The DockedMagnifierContainer
// should not be a descendant of this container, otherwise there would be a
// cycle (docked magnifier trying to magnify itself).
aura::Window* magnified_container =
CreateContainer(kShellWindowId_MagnifiedContainer, "MagnifiedContainer",
screen_rotation_container);
CreateContainer(kShellWindowId_DockedMagnifierContainer,
"DockedMagnifierContainer", screen_rotation_container);
// These containers are just used by PowerButtonController to animate groups
// of containers simultaneously without messing up the current transformations
// on those containers. These are direct children of the magnified_container
// window; all of the other containers are their children.
// The wallpaper container is not part of the lock animation, so it is not
// included in those animate groups. When the screen is locked, the wallpaper
// is moved to the lock screen wallpaper container (and moved back on unlock).
// Ensure that there's an opaque layer occluding the non-lock-screen layers.