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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef UI_EVENTS_LATENCY_INFO_H_ | 5 #ifndef UI_EVENTS_LATENCY_INFO_H_ |
| 6 #define UI_EVENTS_LATENCY_INFO_H_ | 6 #define UI_EVENTS_LATENCY_INFO_H_ |
| 7 | 7 |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 | 9 |
| 10 #include <memory> | 10 #include <memory> |
| 11 #include <string> | 11 #include <string> |
| 12 #include <utility> | 12 #include <utility> |
| 13 #include <vector> | 13 #include <vector> |
| 14 | 14 |
| 15 #include "base/containers/small_map.h" | 15 #include "base/containers/small_map.h" |
| 16 #include "base/time/time.h" | 16 #include "base/time/time.h" |
| 17 #include "base/trace_event/trace_event.h" | 17 #include "base/trace_event/trace_event.h" |
| 18 #include "ui/events/events_base_export.h" | 18 #include "ui/events/events_base_export.h" |
| 19 #include "ui/gfx/geometry/point_f.h" |
| 19 | 20 |
| 20 #if !defined(OS_IOS) | 21 #if !defined(OS_IOS) |
| 21 #include "ipc/ipc_param_traits.h" // nogncheck | 22 #include "ipc/ipc_param_traits.h" // nogncheck |
| 22 #include "mojo/public/cpp/bindings/struct_traits.h" // nogncheck | 23 #include "mojo/public/cpp/bindings/struct_traits.h" // nogncheck |
| 23 #endif | 24 #endif |
| 24 | 25 |
| 25 namespace ui { | 26 namespace ui { |
| 26 | 27 |
| 27 #if !defined(OS_IOS) | 28 #if !defined(OS_IOS) |
| 28 namespace mojom { | 29 namespace mojom { |
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| 118 // Nondecreasing number that can be used to determine what events happened | 119 // Nondecreasing number that can be used to determine what events happened |
| 119 // in the component at the time this struct was sent on to the next | 120 // in the component at the time this struct was sent on to the next |
| 120 // component. | 121 // component. |
| 121 int64_t sequence_number; | 122 int64_t sequence_number; |
| 122 // Average time of events that happened in this component. | 123 // Average time of events that happened in this component. |
| 123 base::TimeTicks event_time; | 124 base::TimeTicks event_time; |
| 124 // Count of events that happened in this component | 125 // Count of events that happened in this component |
| 125 uint32_t event_count; | 126 uint32_t event_count; |
| 126 }; | 127 }; |
| 127 | 128 |
| 128 struct EVENTS_BASE_EXPORT InputCoordinate { | |
| 129 InputCoordinate(); | |
| 130 InputCoordinate(float x, float y); | |
| 131 | |
| 132 float x; | |
| 133 float y; | |
| 134 }; | |
| 135 | |
| 136 // Empirically determined constant based on a typical scroll sequence. | 129 // Empirically determined constant based on a typical scroll sequence. |
| 137 enum { kTypicalMaxComponentsPerLatencyInfo = 10 }; | 130 enum { kTypicalMaxComponentsPerLatencyInfo = 10 }; |
| 138 | 131 |
| 139 enum : size_t { kMaxInputCoordinates = 2 }; | 132 enum : size_t { kMaxInputCoordinates = 2 }; |
| 140 | 133 |
| 141 // Map a Latency Component (with a component-specific int64_t id) to a | 134 // Map a Latency Component (with a component-specific int64_t id) to a |
| 142 // component info. | 135 // component info. |
| 143 typedef base::SmallMap< | 136 typedef base::SmallMap< |
| 144 std::map<std::pair<LatencyComponentType, int64_t>, LatencyComponent>, | 137 std::map<std::pair<LatencyComponentType, int64_t>, LatencyComponent>, |
| 145 kTypicalMaxComponentsPerLatencyInfo> LatencyMap; | 138 kTypicalMaxComponentsPerLatencyInfo> LatencyMap; |
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| 193 // the latency_components and the component is stored to |output| if | 186 // the latency_components and the component is stored to |output| if |
| 194 // |output| is not NULL. Returns false if no such component is found. | 187 // |output| is not NULL. Returns false if no such component is found. |
| 195 bool FindLatency(LatencyComponentType type, | 188 bool FindLatency(LatencyComponentType type, |
| 196 int64_t id, | 189 int64_t id, |
| 197 LatencyComponent* output) const; | 190 LatencyComponent* output) const; |
| 198 | 191 |
| 199 void RemoveLatency(LatencyComponentType type); | 192 void RemoveLatency(LatencyComponentType type); |
| 200 | 193 |
| 201 // Returns true if there is still room for keeping the |input_coordinate|, | 194 // Returns true if there is still room for keeping the |input_coordinate|, |
| 202 // false otherwise. | 195 // false otherwise. |
| 203 bool AddInputCoordinate(const InputCoordinate& input_coordinate); | 196 bool AddInputCoordinate(const gfx::PointF& input_coordinate); |
| 204 | 197 |
| 205 uint32_t input_coordinates_size() const { return input_coordinates_size_; } | 198 uint32_t input_coordinates_size() const { return input_coordinates_size_; } |
| 206 const InputCoordinate* input_coordinates() const { | 199 const gfx::PointF* input_coordinates() const { return input_coordinates_; } |
| 207 return input_coordinates_; | |
| 208 } | |
| 209 | 200 |
| 210 const LatencyMap& latency_components() const { return latency_components_; } | 201 const LatencyMap& latency_components() const { return latency_components_; } |
| 211 | 202 |
| 212 bool terminated() const { return terminated_; } | 203 bool terminated() const { return terminated_; } |
| 213 void set_coalesced() { coalesced_ = true; } | 204 void set_coalesced() { coalesced_ = true; } |
| 214 bool coalesced() const { return coalesced_; } | 205 bool coalesced() const { return coalesced_; } |
| 215 int64_t trace_id() const { return trace_id_; } | 206 int64_t trace_id() const { return trace_id_; } |
| 216 | 207 |
| 217 private: | 208 private: |
| 218 void AddLatencyNumberWithTimestampImpl(LatencyComponentType component, | 209 void AddLatencyNumberWithTimestampImpl(LatencyComponentType component, |
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| 229 CoordinatesAsTraceableData(); | 220 CoordinatesAsTraceableData(); |
| 230 | 221 |
| 231 // Shown as part of the name of the trace event for this LatencyInfo. | 222 // Shown as part of the name of the trace event for this LatencyInfo. |
| 232 // String is empty if no tracing is enabled. | 223 // String is empty if no tracing is enabled. |
| 233 std::string trace_name_; | 224 std::string trace_name_; |
| 234 | 225 |
| 235 LatencyMap latency_components_; | 226 LatencyMap latency_components_; |
| 236 | 227 |
| 237 // These coordinates represent window coordinates of the original input event. | 228 // These coordinates represent window coordinates of the original input event. |
| 238 uint32_t input_coordinates_size_; | 229 uint32_t input_coordinates_size_; |
| 239 InputCoordinate input_coordinates_[kMaxInputCoordinates]; | 230 gfx::PointF input_coordinates_[kMaxInputCoordinates]; |
| 240 | 231 |
| 241 // The unique id for matching the ASYNC_BEGIN/END trace event. | 232 // The unique id for matching the ASYNC_BEGIN/END trace event. |
| 242 int64_t trace_id_; | 233 int64_t trace_id_; |
| 243 // Whether this event has been coalesced into another event. | 234 // Whether this event has been coalesced into another event. |
| 244 bool coalesced_; | 235 bool coalesced_; |
| 245 // Whether a terminal component has been added. | 236 // Whether a terminal component has been added. |
| 246 bool terminated_; | 237 bool terminated_; |
| 247 | 238 |
| 248 #if !defined(OS_IOS) | 239 #if !defined(OS_IOS) |
| 249 friend struct IPC::ParamTraits<ui::LatencyInfo>; | 240 friend struct IPC::ParamTraits<ui::LatencyInfo>; |
| 250 friend struct mojo::StructTraits<ui::mojom::LatencyInfo, ui::LatencyInfo>; | 241 friend struct mojo::StructTraits<ui::mojom::LatencyInfo, ui::LatencyInfo>; |
| 251 #endif | 242 #endif |
| 252 }; | 243 }; |
| 253 | 244 |
| 254 } // namespace ui | 245 } // namespace ui |
| 255 | 246 |
| 256 #endif // UI_EVENTS_LATENCY_INFO_H_ | 247 #endif // UI_EVENTS_LATENCY_INFO_H_ |
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