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// 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.
#ifndef CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_
#define CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_
#include "cc/base/cc_export.h"
#include "ui/gfx/size_f.h"
#include "ui/gfx/vector2d_f.h"
namespace cc {
class CC_EXPORT CompositorFrameMetadata
{
public:
CompositorFrameMetadata();
~CompositorFrameMetadata();
// The device scale factor used to generate this compositor frame.
float device_scale_factor;
// Scroll offset and scale of the root layer. This can be used for tasks
// like positioning windowed plugins.
gfx::Vector2dF root_scroll_offset;
float page_scale_factor;
// These limits can be used together with the scroll/scale fields above to
// determine if scrolling/scaling in a particular direction is possible.
gfx::SizeF viewport_size;
gfx::SizeF root_layer_size;
float min_page_scale_factor;
float max_page_scale_factor;
// Used to position the Android location top bar and page content, whose
// precise position is computed by the renderer compositor.
gfx::Vector2dF location_bar_offset;
gfx::Vector2dF location_bar_content_translation;
};
} // namespace cc
#endif // CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_
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