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// Copyright 2013 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/wm/overview/window_selector_window.h"
#include "ash/screen_util.h"
#include "ash/shell.h"
#include "ash/shell_window_ids.h"
#include "ash/wm/overview/scoped_transform_overview_window.h"
#include "grit/ash_resources.h"
#include "ui/aura/window.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/transform.h"
#include "ui/views/controls/button/image_button.h"
#include "ui/views/widget/widget.h"
namespace ash {
namespace {
views::Widget* CreateCloseWindowButton(aura::Window* root_window,
views::ButtonListener* listener) {
views::Widget* widget = new views::Widget;
views::Widget::InitParams params;
params.type = views::Widget::InitParams::TYPE_POPUP;
params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
params.parent =
Shell::GetContainer(root_window, ash::kShellWindowId_OverlayContainer);
widget->set_focus_on_creation(false);
widget->Init(params);
views::ImageButton* button = new views::ImageButton(listener);
ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
button->SetImage(views::CustomButton::STATE_NORMAL,
rb.GetImageSkiaNamed(IDR_AURA_WINDOW_OVERVIEW_CLOSE));
button->SetImage(views::CustomButton::STATE_HOVERED,
rb.GetImageSkiaNamed(IDR_AURA_WINDOW_OVERVIEW_CLOSE_H));
button->SetImage(views::CustomButton::STATE_PRESSED,
rb.GetImageSkiaNamed(IDR_AURA_WINDOW_OVERVIEW_CLOSE_P));
widget->SetContentsView(button);
widget->SetSize(rb.GetImageSkiaNamed(IDR_AURA_WINDOW_OVERVIEW_CLOSE)->size());
widget->Show();
return widget;
}
} // namespace
WindowSelectorWindow::WindowSelectorWindow(aura::Window* window)
: transform_window_(window) {
}
WindowSelectorWindow::~WindowSelectorWindow() {
}
aura::Window* WindowSelectorWindow::GetRootWindow() {
return transform_window_.window()->GetRootWindow();
}
bool WindowSelectorWindow::HasSelectableWindow(const aura::Window* window) {
return transform_window_.window() == window;
}
aura::Window* WindowSelectorWindow::TargetedWindow(const aura::Window* target) {
if (transform_window_.Contains(target))
return transform_window_.window();
return NULL;
}
void WindowSelectorWindow::RestoreWindowOnExit(aura::Window* window) {
transform_window_.RestoreWindowOnExit();
}
aura::Window* WindowSelectorWindow::SelectionWindow() {
return transform_window_.window();
}
void WindowSelectorWindow::RemoveWindow(const aura::Window* window) {
DCHECK_EQ(transform_window_.window(), window);
transform_window_.OnWindowDestroyed();
// Remove the close button now so that the exited mouse event which is
// delivered to the destroyed button as it is destroyed does not happen while
// this item is being removed from the list of windows in overview.
close_button_.reset();
}
bool WindowSelectorWindow::empty() const {
return transform_window_.window() == NULL;
}
void WindowSelectorWindow::PrepareForOverview() {
transform_window_.PrepareForOverview();
}
void WindowSelectorWindow::SetItemBounds(aura::Window* root_window,
const gfx::Rect& target_bounds,
bool animate) {
gfx::Rect src_rect = transform_window_.GetBoundsInScreen();
set_bounds(ScopedTransformOverviewWindow::
ShrinkRectToFitPreservingAspectRatio(src_rect, target_bounds));
transform_window_.SetTransform(root_window,
ScopedTransformOverviewWindow::GetTransformForRect(src_rect, bounds()),
animate);
// TODO move close button management to WindowSelectorItem, so that we can
// also handle panels.
// See http://crbug.com/352143
UpdateCloseButtonBounds(root_window, animate);
}
void WindowSelectorWindow::ButtonPressed(views::Button* sender,
const ui::Event& event) {
views::Widget::GetTopLevelWidgetForNativeView(
transform_window_.window())->Close();
}
void WindowSelectorWindow::UpdateCloseButtonBounds(aura::Window* root_window,
bool animate) {
gfx::Rect align_bounds(
ScreenUtil::ConvertRectFromScreen(root_window, bounds()));
gfx::Transform close_button_transform;
close_button_transform.Translate(align_bounds.right(), align_bounds.y());
// If the root window has changed, force the close button to be recreated
// and faded in on the new root window.
if (close_button_ &&
close_button_->GetNativeWindow()->GetRootWindow() != root_window) {
close_button_.reset();
}
if (!close_button_) {
close_button_.reset(CreateCloseWindowButton(root_window, this));
gfx::Rect close_button_rect(close_button_->GetNativeWindow()->bounds());
// Align the center of the button with position (0, 0) so that the
// translate transform does not need to take the button dimensions into
// account.
close_button_rect.set_x(-close_button_rect.width() / 2);
close_button_rect.set_y(-close_button_rect.height() / 2);
close_button_->GetNativeWindow()->SetBounds(close_button_rect);
close_button_->GetNativeWindow()->SetTransform(close_button_transform);
// The close button is initialized when entering overview, fade the button
// in after the window should be in place.
ui::Layer* layer = close_button_->GetNativeWindow()->layer();
layer->SetOpacity(0);
layer->GetAnimator()->StopAnimating();
layer->GetAnimator()->SchedulePauseForProperties(
base::TimeDelta::FromMilliseconds(
ScopedTransformOverviewWindow::kTransitionMilliseconds),
ui::LayerAnimationElement::OPACITY);
{
ui::ScopedLayerAnimationSettings settings(layer->GetAnimator());
settings.SetPreemptionStrategy(
ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
settings.SetTransitionDuration(base::TimeDelta::FromMilliseconds(
WindowSelectorItem::kFadeInMilliseconds));
layer->SetOpacity(1);
}
} else {
if (animate) {
ui::ScopedLayerAnimationSettings settings(
close_button_->GetNativeWindow()->layer()->GetAnimator());
settings.SetPreemptionStrategy(
ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
settings.SetTransitionDuration(base::TimeDelta::FromMilliseconds(
ScopedTransformOverviewWindow::kTransitionMilliseconds));
close_button_->GetNativeWindow()->SetTransform(close_button_transform);
} else {
close_button_->GetNativeWindow()->SetTransform(close_button_transform);
}
}
}
} // namespace ash
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