blob: 72f9a4e072ca0cc2d6d0967c67d0ed9280290fbb [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/touch/touch_observer_hud.h"
#include "ash/root_window_controller.h"
#include "ash/root_window_settings.h"
#include "ash/shell.h"
#include "ash/shell_window_ids.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/gfx/display.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/screen.h"
#include "ui/views/widget/widget.h"
namespace ash {
TouchObserverHUD::TouchObserverHUD(aura::Window* initial_root)
: display_id_(GetRootWindowSettings(initial_root)->display_id),
root_window_(initial_root),
widget_(NULL) {
const gfx::Display& display =
Shell::GetInstance()->display_manager()->GetDisplayForId(display_id_);
views::View* content = new views::View;
const gfx::Size& display_size = display.size();
content->SetSize(display_size);
widget_ = new views::Widget();
views::Widget::InitParams
params(views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
params.activatable = views::Widget::InitParams::ACTIVATABLE_NO;
params.accept_events = false;
params.bounds = display.bounds();
params.parent =
Shell::GetContainer(root_window_, kShellWindowId_OverlayContainer);
widget_->Init(params);
widget_->SetContentsView(content);
widget_->StackAtTop();
widget_->Show();
widget_->AddObserver(this);
// Observe changes in display size and mode to update touch HUD.
gfx::Screen::GetScreen()->AddObserver(this);
#if defined(OS_CHROMEOS)
Shell::GetInstance()->display_configurator()->AddObserver(this);
#endif // defined(OS_CHROMEOS)
Shell::GetInstance()->window_tree_host_manager()->AddObserver(this);
root_window_->AddPreTargetHandler(this);
}
TouchObserverHUD::~TouchObserverHUD() {
Shell::GetInstance()->window_tree_host_manager()->RemoveObserver(this);
#if defined(OS_CHROMEOS)
Shell::GetInstance()->display_configurator()->RemoveObserver(this);
#endif // defined(OS_CHROMEOS)
gfx::Screen::GetScreen()->RemoveObserver(this);
widget_->RemoveObserver(this);
}
void TouchObserverHUD::Clear() {
}
void TouchObserverHUD::Remove() {
root_window_->RemovePreTargetHandler(this);
RootWindowController* controller = GetRootWindowController(root_window_);
UnsetHudForRootWindowController(controller);
widget_->CloseNow();
}
void TouchObserverHUD::OnTouchEvent(ui::TouchEvent* /*event*/) {
}
void TouchObserverHUD::OnWidgetDestroying(views::Widget* widget) {
DCHECK_EQ(widget, widget_);
delete this;
}
void TouchObserverHUD::OnDisplayAdded(const gfx::Display& new_display) {}
void TouchObserverHUD::OnDisplayRemoved(const gfx::Display& old_display) {
if (old_display.id() != display_id_)
return;
widget_->CloseNow();
}
void TouchObserverHUD::OnDisplayMetricsChanged(const gfx::Display& display,
uint32_t metrics) {
if (display.id() != display_id_ || !(metrics & DISPLAY_METRIC_BOUNDS))
return;
widget_->SetSize(display.size());
}
#if defined(OS_CHROMEOS)
void TouchObserverHUD::OnDisplayModeChanged(
const ui::DisplayConfigurator::DisplayStateList& outputs) {
// Clear touch HUD for any change in display mode (single, dual extended, dual
// mirrored, ...).
Clear();
}
#endif // defined(OS_CHROMEOS)
void TouchObserverHUD::OnDisplaysInitialized() {
OnDisplayConfigurationChanged();
}
void TouchObserverHUD::OnDisplayConfigurationChanging() {
if (!root_window_)
return;
root_window_->RemovePreTargetHandler(this);
RootWindowController* controller = GetRootWindowController(root_window_);
UnsetHudForRootWindowController(controller);
views::Widget::ReparentNativeView(
widget_->GetNativeView(),
Shell::GetContainer(root_window_,
kShellWindowId_UnparentedControlContainer));
root_window_ = NULL;
}
void TouchObserverHUD::OnDisplayConfigurationChanged() {
if (root_window_)
return;
root_window_ = Shell::GetInstance()
->window_tree_host_manager()
->GetRootWindowForDisplayId(display_id_);
views::Widget::ReparentNativeView(
widget_->GetNativeView(),
Shell::GetContainer(root_window_, kShellWindowId_OverlayContainer));
RootWindowController* controller = GetRootWindowController(root_window_);
SetHudForRootWindowController(controller);
root_window_->AddPreTargetHandler(this);
}
} // namespace ash