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// Copyright 2015 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/dim_window.h"
#include "base/time/time.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/window_property.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/wm/core/visibility_controller.h"
#include "ui/wm/core/window_animations.h"
DECLARE_WINDOW_PROPERTY_TYPE(ash::DimWindow*);
namespace ash {
namespace {
DEFINE_LOCAL_WINDOW_PROPERTY_KEY(DimWindow*, kDimWindowKey, nullptr);
const int kDefaultDimAnimationDurationMs = 200;
const float kDefaultDimOpacity = 0.5f;
} // namespace
// static
DimWindow* DimWindow::Get(aura::Window* container) {
return container->GetProperty(kDimWindowKey);
}
DimWindow::DimWindow(aura::Window* parent)
: aura::Window(nullptr), parent_(parent) {
SetType(ui::wm::WINDOW_TYPE_NORMAL);
Init(ui::LAYER_SOLID_COLOR);
wm::SetWindowVisibilityChangesAnimated(this);
wm::SetWindowVisibilityAnimationType(
this, wm::WINDOW_VISIBILITY_ANIMATION_TYPE_FADE);
wm::SetWindowVisibilityAnimationDuration(
this, base::TimeDelta::FromMilliseconds(kDefaultDimAnimationDurationMs));
SetDimOpacity(kDefaultDimOpacity);
parent->AddChild(this);
parent->AddObserver(this);
parent->SetProperty(kDimWindowKey, this);
parent->StackChildAtTop(this);
SetBounds(parent->bounds());
}
DimWindow::~DimWindow() {
if (parent_) {
parent_->ClearProperty(kDimWindowKey);
parent_->RemoveObserver(this);
parent_ = nullptr;
}
}
void DimWindow::SetDimOpacity(float target_opacity) {
layer()->SetColor(SkColorSetA(SK_ColorBLACK, 255 * target_opacity));
}
void DimWindow::OnWindowBoundsChanged(aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) {
if (window == parent_)
SetBounds(new_bounds);
}
void DimWindow::OnWindowDestroying(Window* window) {
if (window == parent_) {
window->ClearProperty(kDimWindowKey);
window->RemoveObserver(this);
parent_ = nullptr;
}
}
} // namespace ash
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