blob: 00b72d1649e1603453c8906288069c6452348dc3 [file] [log] [blame]
// Copyright 2018 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 <memory>
#include "ash/public/cpp/ash_public_export.h"
#include "ui/aura/window_observer.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_delegate.h"
#include "ui/compositor/layer_observer.h"
#include "ui/gfx/geometry/size.h"
namespace ash {
constexpr int kPipRoundedCornerRadius = 8;
// Applies rounded corners to the given layer, and modifies the shadow of
// the given window to be rounded.
class ASH_PUBLIC_EXPORT RoundedCornerDecorator : public ui::LayerDelegate,
public ui::LayerObserver,
public aura::WindowObserver {
RoundedCornerDecorator(aura::Window* shadow_window,
aura::Window* layer_window,
ui::Layer* layer,
int radius);
~RoundedCornerDecorator() override;
// Returns true if the rounded corner decorator is still applied to a valid
// layer.
bool IsValid();
// ui::LayerDelegate:
void OnPaintLayer(const ui::PaintContext& context) override;
void OnDeviceScaleFactorChanged(float old_device_scale_factor,
float new_device_scale_factor) override {}
// ui::LayerObserver:
void LayerDestroyed(ui::Layer* layer) override;
// aura::WindowObserver:
void OnWindowBoundsChanged(aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds,
ui::PropertyChangeReason reason) override;
void OnWindowDestroying(aura::Window* window) override;
void Update(const gfx::Size& size);
void Shutdown();
aura::Window* layer_window_;
ui::Layer* layer_;
std::unique_ptr<ui::Layer> mask_layer_;
int radius_;
} // namespace ash