blob: b21426279035ac989202ff550ffd58e290f2ac02 [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 <memory>
#include <string>
#include "ash/ash_export.h"
#include "base/macros.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/aura/window_observer.h"
namespace ui {
class Layer;
namespace ash {
// SystemWallpaperController manages a ui::Layer that's stacked at the bottom
// of an aura::RootWindow's children. It exists solely to obscure portions of
// the root layer that aren't covered by any other layers (e.g. before the
// wallpaper image is loaded at startup, or when we scale down all of the other
// layers as part of a power-button or window-management animation).
// It should never be transformed or restacked.
class SystemWallpaperController : public aura::WindowObserver {
SystemWallpaperController(aura::Window* root_window, SkColor color);
~SystemWallpaperController() override;
void SetColor(SkColor color);
// aura::WindowObserver overrides:
void OnWindowBoundsChanged(aura::Window* root,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) override;
class HostContentLayerDelegate;
aura::Window* root_window_; // not owned
std::unique_ptr<ui::Layer> layer_;
} // namespace ash