blob: 65bb8ebc003ac11c656e1e1e592d3f1d95c1c054 [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/wallpaper/wallpaper_widget_controller.h"
#include "ash/ash_export.h"
#include "ash/root_window_controller.h"
#include "ash/shell.h"
#include "ash/wallpaper/wallpaper_delegate.h"
#include "ui/aura/window.h"
#include "ui/compositor/layer_animation_observer.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/views/widget/widget.h"
namespace ash {
namespace {
class ShowWallpaperAnimationObserver : public ui::ImplicitAnimationObserver,
public views::WidgetObserver {
public:
ShowWallpaperAnimationObserver(RootWindowController* root_window_controller,
views::Widget* wallpaper_widget)
: root_window_controller_(root_window_controller),
wallpaper_widget_(wallpaper_widget) {
DCHECK(wallpaper_widget_);
wallpaper_widget_->AddObserver(this);
}
~ShowWallpaperAnimationObserver() override {
StopObservingImplicitAnimations();
if (wallpaper_widget_)
wallpaper_widget_->RemoveObserver(this);
}
private:
// Overridden from ui::ImplicitAnimationObserver:
void OnImplicitAnimationsCompleted() override {
root_window_controller_->OnWallpaperAnimationFinished(wallpaper_widget_);
delete this;
}
// Overridden from views::WidgetObserver.
void OnWidgetDestroying(views::Widget* widget) override { delete this; }
RootWindowController* root_window_controller_;
views::Widget* wallpaper_widget_;
DISALLOW_COPY_AND_ASSIGN(ShowWallpaperAnimationObserver);
};
} // namespace
WallpaperWidgetController::WallpaperWidgetController(views::Widget* widget)
: widget_(widget),
widget_parent_(widget->GetNativeWindow()->parent()),
has_blur_cache_(false) {
DCHECK(widget_);
widget_->AddObserver(this);
widget_parent_->AddObserver(this);
}
WallpaperWidgetController::~WallpaperWidgetController() {
if (widget_) {
if (has_blur_cache_)
widget_parent_->layer()->RemoveCacheRenderSurfaceRequest();
views::Widget* widget = widget_;
RemoveObservers();
widget->CloseNow();
}
}
void WallpaperWidgetController::OnWidgetDestroying(views::Widget* widget) {
RemoveObservers();
}
void WallpaperWidgetController::SetBounds(const gfx::Rect& bounds) {
if (widget_)
widget_->SetBounds(bounds);
}
bool WallpaperWidgetController::Reparent(aura::Window* root_window,
int container) {
if (widget_) {
// Ensures the cache render surface of the old parent is unset.
if (has_blur_cache_)
widget_parent_->layer()->RemoveCacheRenderSurfaceRequest();
widget_parent_->RemoveObserver(this);
aura::Window* window = widget_->GetNativeWindow();
root_window->GetChildById(container)->AddChild(window);
widget_parent_ = widget_->GetNativeWindow()->parent();
widget_parent_->AddObserver(this);
has_blur_cache_ = widget_->GetLayer()->layer_blur() > 0.0f;
if (has_blur_cache_)
widget_parent_->layer()->AddCacheRenderSurfaceRequest();
return true;
}
// Nothing to reparent.
return false;
}
void WallpaperWidgetController::RemoveObservers() {
widget_parent_->RemoveObserver(this);
widget_->RemoveObserver(this);
widget_ = nullptr;
}
void WallpaperWidgetController::OnWindowBoundsChanged(
aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds,
ui::PropertyChangeReason reason) {
SetBounds(new_bounds);
}
void WallpaperWidgetController::StartAnimating(
RootWindowController* root_window_controller) {
if (widget_) {
ui::ScopedLayerAnimationSettings settings(
widget_->GetLayer()->GetAnimator());
// ShowWallpaperAnimationObserver deletes itself when animation is done.
settings.AddObserver(
new ShowWallpaperAnimationObserver(root_window_controller, widget_));
// When |widget_| shows, AnimateShowWindowCommon() is called to do the
// animation. Sets transition duration to 0 to avoid animating to the
// show animation's initial values.
settings.SetTransitionDuration(base::TimeDelta());
widget_->Show();
}
}
void WallpaperWidgetController::SetWallpaperBlur(float blur_sigma) {
widget_->GetLayer()->SetLayerBlur(blur_sigma);
// Force the use of cache render surface to make blur more efficient.
bool has_blur_cache = blur_sigma > 0.0f;
if (has_blur_cache != has_blur_cache_) {
if (has_blur_cache)
widget_parent_->layer()->AddCacheRenderSurfaceRequest();
else
widget_parent_->layer()->RemoveCacheRenderSurfaceRequest();
has_blur_cache_ = has_blur_cache;
}
}
AnimatingWallpaperWidgetController::AnimatingWallpaperWidgetController(
WallpaperWidgetController* controller)
: controller_(controller) {}
AnimatingWallpaperWidgetController::~AnimatingWallpaperWidgetController() =
default;
void AnimatingWallpaperWidgetController::StopAnimating() {
if (controller_)
controller_->widget()->GetLayer()->GetAnimator()->StopAnimating();
}
WallpaperWidgetController* AnimatingWallpaperWidgetController::GetController(
bool pass_ownership) {
if (pass_ownership)
return controller_.release();
return controller_.get();
}
} // namespace ash