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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_OUTPUT_COMPOSITOR_FRAME_METADATA_H_ | |
6 #define CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "ui/events/latency_info.h" | |
11 #include "ui/gfx/geometry/size_f.h" | |
12 #include "ui/gfx/geometry/vector2d_f.h" | |
13 | |
14 namespace cc { | |
15 | |
16 class CompositorFrameMetadata { | |
17 public: | |
18 CompositorFrameMetadata(); | |
19 ~CompositorFrameMetadata(); | |
20 | |
21 // The device scale factor used to generate this compositor frame. | |
22 float device_scale_factor; | |
23 | |
24 // Scroll offset and scale of the root layer. This can be used for tasks | |
25 // like positioning windowed plugins. | |
26 gfx::Vector2dF root_scroll_offset; | |
27 float page_scale_factor; | |
28 | |
29 // These limits can be used together with the scroll/scale fields above to | |
30 // determine if scrolling/scaling in a particular direction is possible. | |
31 gfx::SizeF scrollable_viewport_size; | |
32 gfx::SizeF root_layer_size; | |
33 float min_page_scale_factor; | |
34 float max_page_scale_factor; | |
35 bool root_overflow_x_hidden; | |
36 bool root_overflow_y_hidden; | |
37 | |
38 // Used to position the Android location top bar and page content, whose | |
39 // precise position is computed by the renderer compositor. | |
40 gfx::Vector2dF location_bar_offset; | |
41 gfx::Vector2dF location_bar_content_translation; | |
42 | |
43 std::vector<ui::LatencyInfo> latency_info; | |
44 | |
45 // A set of SurfaceSequences that this frame satisfies (always in the same | |
46 // namespace as the current Surface). | |
47 std::vector<uint32_t> satisfies_sequences; | |
48 }; | |
49 | |
50 } // namespace cc | |
51 | |
52 #endif // CC_OUTPUT_COMPOSITOR_FRAME_METADATA_H_ | |
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