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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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