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cc / layers / content_layer_client.h [blame]
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_LAYERS_CONTENT_LAYER_CLIENT_H_
#define CC_LAYERS_CONTENT_LAYER_CLIENT_H_
#include <stddef.h>
#include "cc/cc_export.h"
#include "cc/paint/display_item_list.h"
namespace cc {
class CC_EXPORT ContentLayerClient {
public:
// Normally a ContentLayerClient implementation instance and a PictureLayer
// hold references to each other, making copy and move operations unsafe.
ContentLayerClient(const ContentLayerClient&) = delete;
ContentLayerClient& operator=(const ContentLayerClient&) = delete;
// Paints the content area for the layer into a DisplayItemList.
virtual scoped_refptr<DisplayItemList> PaintContentsToDisplayList() = 0;
// If true the layer may skip clearing the background before rasterizing,
// because it will cover any uncleared data with content.
virtual bool FillsBoundsCompletely() const = 0;
protected:
ContentLayerClient() = default;
virtual ~ContentLayerClient() = default;
};
} // namespace cc
#endif // CC_LAYERS_CONTENT_LAYER_CLIENT_H_