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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CC_COMPOSITOR_FRAME_METADATA_H_ | |
6 #define CC_COMPOSITOR_FRAME_METADATA_H_ | |
7 | |
8 #include "cc/base/cc_export.h" | |
9 #include "ui/gfx/size_f.h" | |
10 #include "ui/gfx/vector2d_f.h" | |
11 | |
12 namespace cc { | |
13 | |
14 class CC_EXPORT CompositorFrameMetadata | |
15 { | |
16 public: | |
17 CompositorFrameMetadata(); | |
18 ~CompositorFrameMetadata(); | |
19 | |
20 // The device scale factor used to generate this compositor frame. | |
21 float device_scale_factor; | |
22 | |
23 // Scroll offset and scale of the root layer. This can be used for tasks | |
24 // like positioning windowed plugins. | |
25 gfx::Vector2dF root_scroll_offset; | |
26 float page_scale_factor; | |
27 | |
28 // These limits can be used together with the scroll/scale fields above to | |
29 // determine if scrolling/scaling in a particular direction is possible. | |
30 gfx::SizeF viewport_size; | |
31 gfx::SizeF root_layer_size; | |
32 float min_page_scale_factor; | |
33 float max_page_scale_factor; | |
34 | |
35 // Used to position the Android location top bar and page content, whose | |
36 // precise position is computed by the renderer compositor. | |
37 gfx::Vector2dF location_bar_offset; | |
38 gfx::Vector2dF location_bar_content_translation; | |
39 }; | |
40 | |
41 } // namespace cc | |
42 | |
43 #endif // CC_COMPOSITOR_FRAME_METADATA_H_ | |
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