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// Copyright 2014 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.
#ifndef CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_CONTENT_LAYER_H_
#define CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_CONTENT_LAYER_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/android/compositor/layer/layer.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
namespace cc {
class Layer;
}
namespace chrome {
namespace android {
class TabContentManager;
class ThumbnailLayer;
// Sub layer tree representation of the contents of a tab.
// Contains logic to temporarily display a static thumbnail
// when the content layer is not available.
// To specialize call SetProperties.
class ContentLayer : public Layer {
public:
static scoped_refptr<ContentLayer> Create(
TabContentManager* tab_content_manager);
void SetProperties(int id,
bool can_use_live_layer,
bool can_use_ntp_fallback,
float static_to_view_blend,
bool should_override_content_alpha,
float content_alpha_override,
float saturation,
const gfx::Rect& desired_bounds,
const gfx::Size& content_size);
bool ShowingLiveLayer() { return !static_attached_ && content_attached_; }
gfx::Size GetContentSize();
scoped_refptr<cc::Layer> layer() override;
protected:
explicit ContentLayer(TabContentManager* tab_content_manager);
~ContentLayer() override;
private:
void SetContentLayer(scoped_refptr<cc::Layer> layer);
void SetStaticLayer(scoped_refptr<ThumbnailLayer> layer);
void ClipContentLayer(scoped_refptr<cc::Layer> content_layer,
gfx::Rect clipping,
gfx::Size content_size);
void ClipStaticLayer(scoped_refptr<ThumbnailLayer> static_layer,
gfx::Rect clipping);
scoped_refptr<cc::Layer> layer_;
scoped_refptr<ThumbnailLayer> static_layer_;
bool content_attached_;
bool static_attached_;
float saturation_;
TabContentManager* tab_content_manager_;
DISALLOW_COPY_AND_ASSIGN(ContentLayer);
};
} // namespace android
} // namespace chrome
#endif // CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_CONTENT_LAYER_H_
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