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| 1 // Copyright 2016 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 UI_EVENTS_MOJO_LATENCY_INFO_STRUCT_TRAITS_H_ |
| 6 #define UI_EVENTS_MOJO_LATENCY_INFO_STRUCT_TRAITS_H_ |
| 7 |
| 8 #include "ui/events/latency_info.h" |
| 9 #include "ui/events/mojo/latency_info.mojom.h" |
| 10 |
| 11 namespace mojo { |
| 12 |
| 13 template <> |
| 14 struct StructTraits<ui::mojom::InputCoordinate, |
| 15 ui::LatencyInfo::InputCoordinate> { |
| 16 static float x(const ui::LatencyInfo::InputCoordinate& input) { |
| 17 return input.x; |
| 18 } |
| 19 static float y(const ui::LatencyInfo::InputCoordinate& input) { |
| 20 return input.y; |
| 21 } |
| 22 static bool Read(ui::mojom::InputCoordinateDataView data, |
| 23 ui::LatencyInfo::InputCoordinate* out) { |
| 24 out->x = data.x(); |
| 25 out->y = data.y(); |
| 26 return true; |
| 27 } |
| 28 }; |
| 29 |
| 30 // A buffer used to read bytes directly from LatencyInfoDataView into |
| 31 // ui::LatencyInfo's input_coordinates_. |
| 32 struct InputCoordinateArray { |
| 33 size_t size; |
| 34 ui::LatencyInfo::InputCoordinate* data; |
| 35 }; |
| 36 |
| 37 // TODO(fsamuel): We should add a common ArrayTraits<CArray<T>> utility struct. |
| 38 template <> |
| 39 struct ArrayTraits<InputCoordinateArray> { |
| 40 using Element = ui::LatencyInfo::InputCoordinate; |
| 41 static size_t GetSize(const InputCoordinateArray& b); |
| 42 static Element* GetData(InputCoordinateArray& b); |
| 43 static const Element* GetData(const InputCoordinateArray& b); |
| 44 static Element& GetAt(InputCoordinateArray& b, size_t i); |
| 45 static const Element& GetAt(const InputCoordinateArray& b, size_t i); |
| 46 static void Resize(InputCoordinateArray& b, size_t size); |
| 47 }; |
| 48 |
| 49 template <> |
| 50 struct StructTraits<ui::mojom::LatencyComponent, |
| 51 ui::LatencyInfo::LatencyComponent> { |
| 52 static int64_t sequence_number( |
| 53 const ui::LatencyInfo::LatencyComponent& component); |
| 54 static base::TimeTicks event_time( |
| 55 const ui::LatencyInfo::LatencyComponent& component); |
| 56 static uint32_t event_count( |
| 57 const ui::LatencyInfo::LatencyComponent& component); |
| 58 static bool Read(ui::mojom::LatencyComponentDataView data, |
| 59 ui::LatencyInfo::LatencyComponent* out); |
| 60 }; |
| 61 |
| 62 template <> |
| 63 struct StructTraits<ui::mojom::LatencyComponentId, |
| 64 std::pair<ui::LatencyComponentType, int64_t>> { |
| 65 static ui::mojom::LatencyComponentType type( |
| 66 const std::pair<ui::LatencyComponentType, int64_t>& id); |
| 67 static int64_t id(const std::pair<ui::LatencyComponentType, int64_t>& id); |
| 68 static bool Read(ui::mojom::LatencyComponentIdDataView data, |
| 69 std::pair<ui::LatencyComponentType, int64_t>* out); |
| 70 }; |
| 71 |
| 72 template <> |
| 73 struct StructTraits<ui::mojom::LatencyInfo, ui::LatencyInfo> { |
| 74 static void* SetUpContext(const ui::LatencyInfo& info); |
| 75 static void TearDownContext(const ui::LatencyInfo& info, void* context); |
| 76 static const std::string& trace_name(const ui::LatencyInfo& info); |
| 77 static mojo::Array<ui::mojom::LatencyComponentPairPtr>& latency_components( |
| 78 const ui::LatencyInfo& info, |
| 79 void* context); |
| 80 static uint32_t input_coordinates_size(const ui::LatencyInfo& info); |
| 81 static InputCoordinateArray input_coordinates(const ui::LatencyInfo& info); |
| 82 static int64_t trace_id(const ui::LatencyInfo& info); |
| 83 static bool coalesced(const ui::LatencyInfo& info); |
| 84 static bool terminated(const ui::LatencyInfo& info); |
| 85 static bool Read(ui::mojom::LatencyInfoDataView data, ui::LatencyInfo* out); |
| 86 }; |
| 87 |
| 88 } // namespace mojo |
| 89 |
| 90 #endif // UI_EVENTS_MOJO_LATENCY_INFO_STRUCT_TRAITS_H_ |
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