blob: 966a33b9d42e4fe4950463bb8b032ddc5fa61729 [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/display/window_tree_host_manager.h"
#include <algorithm>
#include <cmath>
#include <map>
#include <memory>
#include <utility>
#include "ash/common/ash_switches.h"
#include "ash/display/cursor_window_controller.h"
#include "ash/display/display_layout_store.h"
#include "ash/display/display_manager.h"
#include "ash/display/mirror_window_controller.h"
#include "ash/display/root_window_transformers.h"
#include "ash/host/ash_window_tree_host.h"
#include "ash/host/ash_window_tree_host_init_params.h"
#include "ash/host/root_window_transformer.h"
#include "ash/ime/input_method_event_handler.h"
#include "ash/magnifier/magnification_controller.h"
#include "ash/magnifier/partial_magnification_controller.h"
#include "ash/root_window_controller.h"
#include "ash/root_window_settings.h"
#include "ash/screen_util.h"
#include "ash/shell.h"
#include "ash/shell_delegate.h"
#include "ash/system/tray/system_tray.h"
#include "ash/wm/window_util.h"
#include "base/command_line.h"
#include "base/stl_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_task_runner_handle.h"
#include "ui/aura/client/capture_client.h"
#include "ui/aura/client/focus_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_property.h"
#include "ui/aura/window_tracker.h"
#include "ui/aura/window_tree_host.h"
#include "ui/base/ime/input_method_factory.h"
#include "ui/compositor/compositor.h"
#include "ui/display/display.h"
#include "ui/display/manager/display_layout.h"
#include "ui/display/screen.h"
#include "ui/wm/core/coordinate_conversion.h"
#include "ui/wm/public/activation_client.h"
#if defined(USE_X11)
#include "ui/base/x/x11_util.h" // nogncheck
#include "ui/gfx/x/x11_types.h" // nogncheck
// Including this at the bottom to avoid other
// potential conflict with chrome headers.
#include <X11/extensions/Xrandr.h>
#undef RootWindow
#endif // defined(USE_X11)
#if defined(OS_CHROMEOS) && defined(USE_OZONE)
#include "ui/events/ozone/chromeos/cursor_controller.h"
#endif
namespace ash {
namespace {
// Primary display stored in global object as it can be
// accessed after Shell is deleted. A separate display instance is created
// during the shutdown instead of always keeping two display instances
// (one here and another one in display_manager) in sync, which is error prone.
// This is initialized in the constructor, and then in CreatePrimaryHost().
int64_t primary_display_id = -1;
#if defined(USE_OZONE) && defined(OS_CHROMEOS)
// Add 20% more cursor motion on non-integrated displays.
const float kCursorMultiplierForExternalDisplays = 1.2f;
#endif
DisplayManager* GetDisplayManager() {
return Shell::GetInstance()->display_manager();
}
void SetDisplayPropertiesOnHost(AshWindowTreeHost* ash_host,
const display::Display& display) {
DisplayInfo info = GetDisplayManager()->GetDisplayInfo(display.id());
aura::WindowTreeHost* host = ash_host->AsWindowTreeHost();
#if defined(OS_CHROMEOS)
#if defined(USE_X11)
// Native window property (Atom in X11) that specifies the display's
// rotation, scale factor and if it's internal display. They are
// read and used by touchpad/mouse driver directly on X (contact
// adlr@ for more details on touchpad/mouse driver side). The value
// of the rotation is one of 0 (normal), 1 (90 degrees clockwise), 2
// (180 degree) or 3 (270 degrees clockwise). The value of the
// scale factor is in percent (100, 140, 200 etc).
const char kRotationProp[] = "_CHROME_DISPLAY_ROTATION";
const char kScaleFactorProp[] = "_CHROME_DISPLAY_SCALE_FACTOR";
const char kInternalProp[] = "_CHROME_DISPLAY_INTERNAL";
const char kCARDINAL[] = "CARDINAL";
int xrandr_rotation = RR_Rotate_0;
switch (info.GetActiveRotation()) {
case display::Display::ROTATE_0:
xrandr_rotation = RR_Rotate_0;
break;
case display::Display::ROTATE_90:
xrandr_rotation = RR_Rotate_90;
break;
case display::Display::ROTATE_180:
xrandr_rotation = RR_Rotate_180;
break;
case display::Display::ROTATE_270:
xrandr_rotation = RR_Rotate_270;
break;
}
int internal = display.IsInternal() ? 1 : 0;
gfx::AcceleratedWidget xwindow = host->GetAcceleratedWidget();
ui::SetIntProperty(xwindow, kInternalProp, kCARDINAL, internal);
ui::SetIntProperty(xwindow, kRotationProp, kCARDINAL, xrandr_rotation);
ui::SetIntProperty(xwindow, kScaleFactorProp, kCARDINAL,
100 * display.device_scale_factor());
#elif defined(USE_OZONE)
// Scale all motion on High-DPI displays.
float scale = display.device_scale_factor();
if (!display.IsInternal())
scale *= kCursorMultiplierForExternalDisplays;
ui::CursorController::GetInstance()->SetCursorConfigForWindow(
host->GetAcceleratedWidget(), info.GetActiveRotation(), scale);
#endif
#endif
std::unique_ptr<RootWindowTransformer> transformer(
CreateRootWindowTransformerForDisplay(host->window(), display));
ash_host->SetRootWindowTransformer(std::move(transformer));
DisplayMode mode =
GetDisplayManager()->GetActiveModeForDisplayId(display.id());
if (mode.refresh_rate > 0.0f) {
host->compositor()->SetAuthoritativeVSyncInterval(
base::TimeDelta::FromMicroseconds(base::Time::kMicrosecondsPerSecond /
mode.refresh_rate));
}
// Just movnig the display requires the full redraw.
// chrome-os-partner:33558.
host->compositor()->ScheduleFullRedraw();
}
void ClearDisplayPropertiesOnHost(AshWindowTreeHost* ash_host) {
#if defined(OS_CHROMEOS) && defined(USE_OZONE)
aura::WindowTreeHost* host = ash_host->AsWindowTreeHost();
ui::CursorController::GetInstance()->ClearCursorConfigForWindow(
host->GetAcceleratedWidget());
#endif
}
aura::Window* GetWindow(AshWindowTreeHost* ash_host) {
CHECK(ash_host->AsWindowTreeHost());
return ash_host->AsWindowTreeHost()->window();
}
} // namespace
// A utility class to store/restore focused/active window
// when the display configuration has changed.
class FocusActivationStore {
public:
FocusActivationStore()
: activation_client_(nullptr),
capture_client_(nullptr),
focus_client_(nullptr),
focused_(nullptr),
active_(nullptr) {}
void Store(bool clear_focus) {
if (!activation_client_) {
aura::Window* root = Shell::GetPrimaryRootWindow();
activation_client_ = aura::client::GetActivationClient(root);
capture_client_ = aura::client::GetCaptureClient(root);
focus_client_ = aura::client::GetFocusClient(root);
}
focused_ = focus_client_->GetFocusedWindow();
if (focused_)
tracker_.Add(focused_);
active_ = activation_client_->GetActiveWindow();
if (active_ && focused_ != active_)
tracker_.Add(active_);
// Deactivate the window to close menu / bubble windows.
if (clear_focus)
activation_client_->DeactivateWindow(active_);
// Release capture if any.
capture_client_->SetCapture(nullptr);
// Clear the focused window if any. This is necessary because a
// window may be deleted when losing focus (fullscreen flash for
// example). If the focused window is still alive after move, it'll
// be re-focused below.
if (clear_focus)
focus_client_->FocusWindow(nullptr);
}
void Restore() {
// Restore focused or active window if it's still alive.
if (focused_ && tracker_.Contains(focused_)) {
focus_client_->FocusWindow(focused_);
} else if (active_ && tracker_.Contains(active_)) {
activation_client_->ActivateWindow(active_);
}
if (focused_)
tracker_.Remove(focused_);
if (active_)
tracker_.Remove(active_);
focused_ = nullptr;
active_ = nullptr;
}
private:
aura::client::ActivationClient* activation_client_;
aura::client::CaptureClient* capture_client_;
aura::client::FocusClient* focus_client_;
aura::WindowTracker tracker_;
aura::Window* focused_;
aura::Window* active_;
DISALLOW_COPY_AND_ASSIGN(FocusActivationStore);
};
////////////////////////////////////////////////////////////////////////////////
// WindowTreeHostManager
WindowTreeHostManager::WindowTreeHostManager()
: primary_tree_host_for_replace_(nullptr),
focus_activation_store_(new FocusActivationStore()),
cursor_window_controller_(new CursorWindowController()),
mirror_window_controller_(new MirrorWindowController()),
cursor_display_id_for_restore_(display::Display::kInvalidDisplayID),
weak_ptr_factory_(this) {
// Reset primary display to make sure that tests don't use
// stale display info from previous tests.
primary_display_id = display::Display::kInvalidDisplayID;
}
WindowTreeHostManager::~WindowTreeHostManager() {}
void WindowTreeHostManager::Start() {
display::Screen::GetScreen()->AddObserver(this);
Shell::GetInstance()->display_manager()->set_delegate(this);
}
void WindowTreeHostManager::Shutdown() {
FOR_EACH_OBSERVER(Observer, observers_, OnWindowTreeHostManagerShutdown());
// Unset the display manager's delegate here because
// DisplayManager outlives WindowTreeHostManager.
Shell::GetInstance()->display_manager()->set_delegate(nullptr);
cursor_window_controller_.reset();
mirror_window_controller_.reset();
display::Screen::GetScreen()->RemoveObserver(this);
int64_t primary_id = display::Screen::GetScreen()->GetPrimaryDisplay().id();
// Delete non primary root window controllers first, then
// delete the primary root window controller.
aura::Window::Windows root_windows =
WindowTreeHostManager::GetAllRootWindows();
std::vector<RootWindowController*> to_delete;
RootWindowController* primary_rwc = nullptr;
for (aura::Window::Windows::iterator iter = root_windows.begin();
iter != root_windows.end(); ++iter) {
RootWindowController* rwc = GetRootWindowController(*iter);
if (GetRootWindowSettings(*iter)->display_id == primary_id)
primary_rwc = rwc;
else
to_delete.push_back(rwc);
}
CHECK(primary_rwc);
STLDeleteElements(&to_delete);
delete primary_rwc;
}
void WindowTreeHostManager::CreatePrimaryHost(
const AshWindowTreeHostInitParams& init_params) {
const display::Display& primary_candidate =
GetDisplayManager()->GetPrimaryDisplayCandidate();
primary_display_id = primary_candidate.id();
CHECK_NE(display::Display::kInvalidDisplayID, primary_display_id);
AddWindowTreeHostForDisplay(primary_candidate, init_params);
}
void WindowTreeHostManager::InitHosts() {
RootWindowController::CreateForPrimaryDisplay(
window_tree_hosts_[primary_display_id]);
DisplayManager* display_manager = GetDisplayManager();
for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
const display::Display& display = display_manager->GetDisplayAt(i);
if (primary_display_id != display.id()) {
AshWindowTreeHost* ash_host =
AddWindowTreeHostForDisplay(display, AshWindowTreeHostInitParams());
RootWindowController::CreateForSecondaryDisplay(ash_host);
}
}
FOR_EACH_OBSERVER(Observer, observers_, OnDisplaysInitialized());
}
void WindowTreeHostManager::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void WindowTreeHostManager::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
// static
int64_t WindowTreeHostManager::GetPrimaryDisplayId() {
CHECK_NE(display::Display::kInvalidDisplayID, primary_display_id);
return primary_display_id;
}
aura::Window* WindowTreeHostManager::GetPrimaryRootWindow() {
return GetRootWindowForDisplayId(primary_display_id);
}
aura::Window* WindowTreeHostManager::GetRootWindowForDisplayId(int64_t id) {
AshWindowTreeHost* host = GetAshWindowTreeHostForDisplayId(id);
CHECK(host);
return GetWindow(host);
}
AshWindowTreeHost* WindowTreeHostManager::GetAshWindowTreeHostForDisplayId(
int64_t display_id) {
CHECK_EQ(1u, window_tree_hosts_.count(display_id)) << "display id = "
<< display_id;
return window_tree_hosts_[display_id];
}
void WindowTreeHostManager::CloseChildWindows() {
for (WindowTreeHostMap::const_iterator it = window_tree_hosts_.begin();
it != window_tree_hosts_.end(); ++it) {
aura::Window* root_window = GetWindow(it->second);
RootWindowController* controller = GetRootWindowController(root_window);
if (controller) {
controller->CloseChildWindows();
} else {
while (!root_window->children().empty()) {
aura::Window* child = root_window->children()[0];
delete child;
}
}
}
}
aura::Window::Windows WindowTreeHostManager::GetAllRootWindows() {
aura::Window::Windows windows;
for (WindowTreeHostMap::const_iterator it = window_tree_hosts_.begin();
it != window_tree_hosts_.end(); ++it) {
DCHECK(it->second);
if (GetRootWindowController(GetWindow(it->second)))
windows.push_back(GetWindow(it->second));
}
return windows;
}
gfx::Insets WindowTreeHostManager::GetOverscanInsets(int64_t display_id) const {
return GetDisplayManager()->GetOverscanInsets(display_id);
}
void WindowTreeHostManager::SetOverscanInsets(
int64_t display_id,
const gfx::Insets& insets_in_dip) {
GetDisplayManager()->SetOverscanInsets(display_id, insets_in_dip);
}
std::vector<RootWindowController*>
WindowTreeHostManager::GetAllRootWindowControllers() {
std::vector<RootWindowController*> controllers;
for (WindowTreeHostMap::const_iterator it = window_tree_hosts_.begin();
it != window_tree_hosts_.end(); ++it) {
RootWindowController* controller =
GetRootWindowController(GetWindow(it->second));
if (controller)
controllers.push_back(controller);
}
return controllers;
}
void WindowTreeHostManager::SetPrimaryDisplayId(int64_t id) {
// TODO(oshima): Move primary display management to DisplayManager.
DCHECK_NE(display::Display::kInvalidDisplayID, id);
if (id == display::Display::kInvalidDisplayID || primary_display_id == id ||
window_tree_hosts_.size() < 2) {
return;
}
// TODO(oshima): Implement swapping primary for 2> displays.
if (GetDisplayManager()->GetNumDisplays() > 2)
return;
const display::Display& new_primary_display =
GetDisplayManager()->GetDisplayForId(id);
if (!new_primary_display.is_valid()) {
LOG(ERROR) << "Invalid or non-existent display is requested:"
<< new_primary_display.ToString();
return;
}
DisplayManager* display_manager = GetDisplayManager();
DCHECK(new_primary_display.is_valid());
DCHECK(display_manager->GetDisplayForId(new_primary_display.id()).is_valid());
AshWindowTreeHost* non_primary_host =
window_tree_hosts_[new_primary_display.id()];
LOG_IF(ERROR, !non_primary_host)
<< "Unknown display is requested in SetPrimaryDisplay: id="
<< new_primary_display.id();
if (!non_primary_host)
return;
display::Display old_primary_display =
display::Screen::GetScreen()->GetPrimaryDisplay();
DCHECK_EQ(old_primary_display.id(), primary_display_id);
// Swap root windows between current and new primary display.
AshWindowTreeHost* primary_host = window_tree_hosts_[primary_display_id];
CHECK(primary_host);
CHECK_NE(primary_host, non_primary_host);
window_tree_hosts_[new_primary_display.id()] = primary_host;
GetRootWindowSettings(GetWindow(primary_host))->display_id =
new_primary_display.id();
window_tree_hosts_[old_primary_display.id()] = non_primary_host;
GetRootWindowSettings(GetWindow(non_primary_host))->display_id =
old_primary_display.id();
const display::DisplayLayout& layout =
GetDisplayManager()->GetCurrentDisplayLayout();
// The requested primary id can be same as one in the stored layout
// when the primary id is set after new displays are connected.
// Only update the layout if it is requested to swap primary display.
if (layout.primary_id != new_primary_display.id()) {
std::unique_ptr<display::DisplayLayout> swapped_layout(layout.Copy());
swapped_layout->placement_list[0].Swap();
swapped_layout->primary_id = new_primary_display.id();
display::DisplayIdList list = display_manager->GetCurrentDisplayIdList();
GetDisplayManager()->layout_store()->RegisterLayoutForDisplayIdList(
list, std::move(swapped_layout));
}
primary_display_id = new_primary_display.id();
UpdateWorkAreaOfDisplayNearestWindow(GetWindow(primary_host),
old_primary_display.GetWorkAreaInsets());
UpdateWorkAreaOfDisplayNearestWindow(GetWindow(non_primary_host),
new_primary_display.GetWorkAreaInsets());
// Update the dispay manager with new display info.
GetDisplayManager()->set_force_bounds_changed(true);
GetDisplayManager()->UpdateDisplays();
GetDisplayManager()->set_force_bounds_changed(false);
}
void WindowTreeHostManager::UpdateMouseLocationAfterDisplayChange() {
// If the mouse is currently on a display in native location,
// use the same native location. Otherwise find the display closest
// to the current cursor location in screen coordinates.
gfx::Point point_in_screen =
display::Screen::GetScreen()->GetCursorScreenPoint();
gfx::Point target_location_in_native;
int64_t closest_distance_squared = -1;
DisplayManager* display_manager = GetDisplayManager();
aura::Window* dst_root_window = nullptr;
for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
const display::Display& display = display_manager->GetDisplayAt(i);
const DisplayInfo display_info =
display_manager->GetDisplayInfo(display.id());
aura::Window* root_window = GetRootWindowForDisplayId(display.id());
if (display_info.bounds_in_native().Contains(
cursor_location_in_native_coords_for_restore_)) {
dst_root_window = root_window;
target_location_in_native = cursor_location_in_native_coords_for_restore_;
break;
}
gfx::Point center = display.bounds().CenterPoint();
// Use the distance squared from the center of the dislay. This is not
// exactly "closest" display, but good enough to pick one
// appropriate (and there are at most two displays).
// We don't care about actual distance, only relative to other displays, so
// using the LengthSquared() is cheaper than Length().
int64_t distance_squared = (center - point_in_screen).LengthSquared();
if (closest_distance_squared < 0 ||
closest_distance_squared > distance_squared) {
aura::Window* root_window = GetRootWindowForDisplayId(display.id());
::wm::ConvertPointFromScreen(root_window, &center);
root_window->GetHost()->ConvertPointToNativeScreen(&center);
dst_root_window = root_window;
target_location_in_native = center;
closest_distance_squared = distance_squared;
}
}
gfx::Point target_location_in_root = target_location_in_native;
dst_root_window->GetHost()->ConvertPointFromNativeScreen(
&target_location_in_root);
#if defined(USE_OZONE)
gfx::Point target_location_in_screen = target_location_in_root;
::wm::ConvertPointToScreen(dst_root_window, &target_location_in_screen);
const display::Display& target_display =
display_manager->FindDisplayContainingPoint(target_location_in_screen);
// If the original location isn't on any of new display, let ozone move
// the cursor.
if (!target_display.is_valid())
return;
int64_t target_display_id = target_display.id();
// Do not move the cursor if the cursor's location did not change. This avoids
// moving (and showing) the cursor:
// - At startup.
// - When the device is rotated in maximized mode.
// |cursor_display_id_for_restore_| is checked to ensure that the cursor is
// moved when the cursor's native position does not change but the display
// that it is on has changed. This occurs when swapping the primary display.
if (target_location_in_native !=
cursor_location_in_native_coords_for_restore_ ||
target_display_id != cursor_display_id_for_restore_) {
dst_root_window->MoveCursorTo(target_location_in_root);
} else if (target_location_in_screen !=
cursor_location_in_screen_coords_for_restore_) {
// The cursor's native position did not change but its screen position did
// change. This occurs when the scale factor or the rotation of the display
// that the cursor is on changes.
Shell::GetInstance()->cursor_manager()->SetDisplay(target_display);
// Update the cursor's root location. This ends up dispatching a synthetic
// mouse move. The synthetic mouse move updates the composited cursor's
// location and hover effects. Synthetic mouse moves do not affect the
// cursor's visibility.
dst_root_window->GetHost()->dispatcher()->OnCursorMovedToRootLocation(
target_location_in_root);
}
#else
dst_root_window->MoveCursorTo(target_location_in_root);
#endif
}
bool WindowTreeHostManager::UpdateWorkAreaOfDisplayNearestWindow(
const aura::Window* window,
const gfx::Insets& insets) {
const aura::Window* root_window = window->GetRootWindow();
int64_t id = GetRootWindowSettings(root_window)->display_id;
// if id is |kInvaildDisplayID|, it's being deleted.
DCHECK(id != display::Display::kInvalidDisplayID);
return GetDisplayManager()->UpdateWorkAreaOfDisplay(id, insets);
}
void WindowTreeHostManager::OnDisplayAdded(const display::Display& display) {
#if defined(OS_CHROMEOS)
// If we're switching from/to offscreen WTH, we need to
// create new WTH for primary display instead of reusing.
if (primary_tree_host_for_replace_ &&
(GetRootWindowSettings(GetWindow(primary_tree_host_for_replace_))
->display_id == DisplayManager::kUnifiedDisplayId ||
display.id() == DisplayManager::kUnifiedDisplayId)) {
DCHECK_EQ(display::Display::kInvalidDisplayID, primary_display_id);
primary_display_id = display.id();
AshWindowTreeHost* ash_host =
AddWindowTreeHostForDisplay(display, AshWindowTreeHostInitParams());
RootWindowController::CreateForSecondaryDisplay(ash_host);
// Magnifier controllers keep pointers to the current root window.
// Update them here to avoid accessing them later.
Shell::GetInstance()->magnification_controller()->SwitchTargetRootWindow(
ash_host->AsWindowTreeHost()->window(), false);
Shell::GetInstance()
->partial_magnification_controller()
->SwitchTargetRootWindow(ash_host->AsWindowTreeHost()->window());
AshWindowTreeHost* to_delete = primary_tree_host_for_replace_;
primary_tree_host_for_replace_ = nullptr;
// Show the shelf if the original WTH had a visible system
// tray. It may or may not be visible depending on OOBE state.
ash::SystemTray* old_tray =
GetRootWindowController(to_delete->AsWindowTreeHost()->window())
->GetSystemTray();
ash::SystemTray* new_tray =
ash::Shell::GetInstance()->GetPrimarySystemTray();
if (old_tray->GetWidget()->IsVisible()) {
new_tray->SetVisible(true);
new_tray->GetWidget()->Show();
}
DeleteHost(to_delete);
#ifndef NDEBUG
auto iter = std::find_if(
window_tree_hosts_.begin(), window_tree_hosts_.end(),
[to_delete](const std::pair<int64_t, AshWindowTreeHost*>& pair) {
return pair.second == to_delete;
});
DCHECK(iter == window_tree_hosts_.end());
#endif
// the host has already been removed from the window_tree_host_.
} else
#endif
// TODO(oshima): It should be possible to consolidate logic for
// unified and non unified, but I'm keeping them separated to minimize
// the risk in M44. I'll consolidate this in M45.
if (primary_tree_host_for_replace_) {
DCHECK(window_tree_hosts_.empty());
primary_display_id = display.id();
window_tree_hosts_[display.id()] = primary_tree_host_for_replace_;
GetRootWindowSettings(GetWindow(primary_tree_host_for_replace_))
->display_id = display.id();
primary_tree_host_for_replace_ = nullptr;
const DisplayInfo& display_info =
GetDisplayManager()->GetDisplayInfo(display.id());
AshWindowTreeHost* ash_host = window_tree_hosts_[display.id()];
ash_host->AsWindowTreeHost()->SetBounds(display_info.bounds_in_native());
SetDisplayPropertiesOnHost(ash_host, display);
} else {
if (primary_display_id == display::Display::kInvalidDisplayID)
primary_display_id = display.id();
DCHECK(!window_tree_hosts_.empty());
AshWindowTreeHost* ash_host =
AddWindowTreeHostForDisplay(display, AshWindowTreeHostInitParams());
RootWindowController::CreateForSecondaryDisplay(ash_host);
}
}
void WindowTreeHostManager::DeleteHost(AshWindowTreeHost* host_to_delete) {
ClearDisplayPropertiesOnHost(host_to_delete);
RootWindowController* controller =
GetRootWindowController(GetWindow(host_to_delete));
DCHECK(controller);
controller->MoveWindowsTo(GetPrimaryRootWindow());
// Delete most of root window related objects, but don't delete
// root window itself yet because the stack may be using it.
controller->Shutdown();
base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, controller);
}
void WindowTreeHostManager::OnDisplayRemoved(const display::Display& display) {
AshWindowTreeHost* host_to_delete = window_tree_hosts_[display.id()];
CHECK(host_to_delete) << display.ToString();
// When the primary root window's display is removed, move the primary
// root to the other display.
if (primary_display_id == display.id()) {
// Temporarily store the primary root window in
// |primary_root_window_for_replace_| when replacing the display.
if (window_tree_hosts_.size() == 1) {
primary_display_id = display::Display::kInvalidDisplayID;
primary_tree_host_for_replace_ = host_to_delete;
// Display for root window will be deleted when the Primary RootWindow
// is deleted by the Shell.
window_tree_hosts_.erase(display.id());
return;
}
for (const auto& pair : window_tree_hosts_) {
if (pair.first != display.id()) {
primary_display_id = pair.first;
break;
}
}
CHECK_NE(display::Display::kInvalidDisplayID, primary_display_id);
AshWindowTreeHost* primary_host = host_to_delete;
// Delete the other host instead.
host_to_delete = window_tree_hosts_[primary_display_id];
GetRootWindowSettings(GetWindow(host_to_delete))->display_id = display.id();
// Setup primary root.
window_tree_hosts_[primary_display_id] = primary_host;
GetRootWindowSettings(GetWindow(primary_host))->display_id =
primary_display_id;
OnDisplayMetricsChanged(
GetDisplayManager()->GetDisplayForId(primary_display_id),
DISPLAY_METRIC_BOUNDS);
}
DeleteHost(host_to_delete);
// The window tree host should be erased at last because some handlers can
// access to the host through GetRootWindowForDisplayId() during
// MoveWindowsTo(). See http://crbug.com/415222
window_tree_hosts_.erase(display.id());
}
void WindowTreeHostManager::OnDisplayMetricsChanged(
const display::Display& display,
uint32_t metrics) {
if (!(metrics & (DISPLAY_METRIC_BOUNDS | DISPLAY_METRIC_ROTATION |
DISPLAY_METRIC_DEVICE_SCALE_FACTOR)))
return;
const DisplayInfo& display_info =
GetDisplayManager()->GetDisplayInfo(display.id());
DCHECK(!display_info.bounds_in_native().IsEmpty());
AshWindowTreeHost* ash_host = window_tree_hosts_[display.id()];
ash_host->AsWindowTreeHost()->SetBounds(display_info.bounds_in_native());
SetDisplayPropertiesOnHost(ash_host, display);
}
void WindowTreeHostManager::OnHostResized(const aura::WindowTreeHost* host) {
display::Display display =
display::Screen::GetScreen()->GetDisplayNearestWindow(
const_cast<aura::Window*>(host->window()));
DisplayManager* display_manager = GetDisplayManager();
if (display_manager->UpdateDisplayBounds(display.id(), host->GetBounds())) {
mirror_window_controller_->UpdateWindow();
cursor_window_controller_->UpdateContainer();
}
}
void WindowTreeHostManager::CreateOrUpdateMirroringDisplay(
const DisplayInfoList& info_list) {
if (GetDisplayManager()->IsInMirrorMode() ||
GetDisplayManager()->IsInUnifiedMode()) {
mirror_window_controller_->UpdateWindow(info_list);
cursor_window_controller_->UpdateContainer();
} else {
NOTREACHED();
}
}
void WindowTreeHostManager::CloseMirroringDisplayIfNotNecessary() {
mirror_window_controller_->CloseIfNotNecessary();
// If cursor_compositing is enabled for large cursor, the cursor window is
// always on the desktop display (the visible cursor on the non-desktop
// display is drawn through compositor mirroring). Therefore, it's unnecessary
// to handle the cursor_window at all. See: http://crbug.com/412910
if (!cursor_window_controller_->is_cursor_compositing_enabled())
cursor_window_controller_->UpdateContainer();
}
void WindowTreeHostManager::PreDisplayConfigurationChange(bool clear_focus) {
FOR_EACH_OBSERVER(Observer, observers_, OnDisplayConfigurationChanging());
focus_activation_store_->Store(clear_focus);
display::Screen* screen = display::Screen::GetScreen();
gfx::Point point_in_screen = screen->GetCursorScreenPoint();
cursor_location_in_screen_coords_for_restore_ = point_in_screen;
display::Display display = screen->GetDisplayNearestPoint(point_in_screen);
cursor_display_id_for_restore_ = display.id();
gfx::Point point_in_native = point_in_screen;
aura::Window* root_window = GetRootWindowForDisplayId(display.id());
::wm::ConvertPointFromScreen(root_window, &point_in_native);
root_window->GetHost()->ConvertPointToNativeScreen(&point_in_native);
cursor_location_in_native_coords_for_restore_ = point_in_native;
}
void WindowTreeHostManager::PostDisplayConfigurationChange() {
focus_activation_store_->Restore();
DisplayManager* display_manager = GetDisplayManager();
DisplayLayoutStore* layout_store = display_manager->layout_store();
if (display_manager->num_connected_displays() > 1) {
display::DisplayIdList list = display_manager->GetCurrentDisplayIdList();
const display::DisplayLayout& layout =
layout_store->GetRegisteredDisplayLayout(list);
layout_store->UpdateMultiDisplayState(
list, display_manager->IsInMirrorMode(), layout.default_unified);
if (display::Screen::GetScreen()->GetNumDisplays() > 1) {
SetPrimaryDisplayId(layout.primary_id ==
display::Display::kInvalidDisplayID
? list[0]
: layout.primary_id);
}
}
for (const display::Display& display :
display_manager->active_display_list()) {
bool output_is_secure =
!display_manager->IsInMirrorMode() && display.IsInternal();
GetAshWindowTreeHostForDisplayId(display.id())
->AsWindowTreeHost()
->compositor()
->SetOutputIsSecure(output_is_secure);
}
FOR_EACH_OBSERVER(Observer, observers_, OnDisplayConfigurationChanged());
UpdateMouseLocationAfterDisplayChange();
}
ui::EventDispatchDetails WindowTreeHostManager::DispatchKeyEventPostIME(
ui::KeyEvent* event) {
// Getting the active root window to dispatch the event. This isn't
// significant as the event will be sent to the window resolved by
// aura::client::FocusClient which is FocusController in ash.
aura::Window* active_window = wm::GetActiveWindow();
aura::Window* root_window = active_window ? active_window->GetRootWindow()
: Shell::GetPrimaryRootWindow();
return root_window->GetHost()->DispatchKeyEventPostIME(event);
}
AshWindowTreeHost* WindowTreeHostManager::AddWindowTreeHostForDisplay(
const display::Display& display,
const AshWindowTreeHostInitParams& init_params) {
static int host_count = 0;
const DisplayInfo& display_info =
GetDisplayManager()->GetDisplayInfo(display.id());
AshWindowTreeHostInitParams params_with_bounds(init_params);
params_with_bounds.initial_bounds = display_info.bounds_in_native();
params_with_bounds.offscreen =
display.id() == DisplayManager::kUnifiedDisplayId;
AshWindowTreeHost* ash_host = AshWindowTreeHost::Create(params_with_bounds);
aura::WindowTreeHost* host = ash_host->AsWindowTreeHost();
if (!input_method_) { // Singleton input method instance for Ash.
input_method_ = ui::CreateInputMethod(this, host->GetAcceleratedWidget());
// Makes sure the input method is focused by default when created, because
// Ash uses singleton InputMethod and it won't call OnFocus/OnBlur when the
// active window changed.
input_method_->OnFocus();
input_method_event_handler_.reset(
new InputMethodEventHandler(input_method_.get()));
}
host->SetSharedInputMethod(input_method_.get());
ash_host->set_input_method_handler(input_method_event_handler_.get());
host->window()->SetName(base::StringPrintf(
"%sRootWindow-%d", params_with_bounds.offscreen ? "Offscreen" : "",
host_count++));
host->window()->SetTitle(base::UTF8ToUTF16(display_info.name()));
host->compositor()->SetBackgroundColor(SK_ColorBLACK);
// No need to remove our observer observer because the WindowTreeHostManager
// outlives the host.
host->AddObserver(this);
InitRootWindowSettings(host->window())->display_id = display.id();
host->InitHost();
window_tree_hosts_[display.id()] = ash_host;
SetDisplayPropertiesOnHost(ash_host, display);
#if defined(OS_CHROMEOS)
if (switches::ConstrainPointerToRoot())
ash_host->ConfineCursorToRootWindow();
#endif
return ash_host;
}
} // namespace ash