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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 #include "core/paint/PaintTiming.h" | 5 #include "core/paint/PaintTiming.h" |
6 | 6 |
7 #include "core/dom/Document.h" | 7 #include "core/dom/Document.h" |
8 #include "core/frame/LocalDOMWindow.h" | 8 #include "core/frame/LocalDOMWindow.h" |
9 #include "core/frame/LocalFrame.h" | 9 #include "core/frame/LocalFrame.h" |
10 #include "core/frame/LocalFrameView.h" | 10 #include "core/frame/LocalFrameView.h" |
11 #include "core/loader/DocumentLoader.h" | 11 #include "core/loader/DocumentLoader.h" |
12 #include "core/loader/ProgressTracker.h" | 12 #include "core/loader/ProgressTracker.h" |
13 #include "core/page/ChromeClient.h" | 13 #include "core/page/ChromeClient.h" |
14 #include "core/page/Page.h" | 14 #include "core/page/Page.h" |
15 #include "core/timing/DOMWindowPerformance.h" | 15 #include "core/timing/DOMWindowPerformance.h" |
16 #include "core/timing/Performance.h" | 16 #include "core/timing/Performance.h" |
| 17 #include "platform/Histogram.h" |
17 #include "platform/WebFrameScheduler.h" | 18 #include "platform/WebFrameScheduler.h" |
18 #include "platform/instrumentation/tracing/TraceEvent.h" | 19 #include "platform/instrumentation/tracing/TraceEvent.h" |
19 #include "public/platform/WebLayerTreeView.h" | 20 #include "public/platform/WebLayerTreeView.h" |
20 | 21 |
21 namespace blink { | 22 namespace blink { |
22 | 23 |
23 namespace { | 24 namespace { |
24 | 25 |
25 Performance* GetPerformanceInstance(LocalFrame* frame) { | 26 Performance* GetPerformanceInstance(LocalFrame* frame) { |
26 Performance* performance = nullptr; | 27 Performance* performance = nullptr; |
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89 | 90 |
90 void PaintTiming::SetFirstMeaningfulPaintCandidate(double timestamp) { | 91 void PaintTiming::SetFirstMeaningfulPaintCandidate(double timestamp) { |
91 if (first_meaningful_paint_candidate_) | 92 if (first_meaningful_paint_candidate_) |
92 return; | 93 return; |
93 first_meaningful_paint_candidate_ = timestamp; | 94 first_meaningful_paint_candidate_ = timestamp; |
94 if (GetFrame() && GetFrame()->View() && !GetFrame()->View()->IsAttached()) { | 95 if (GetFrame() && GetFrame()->View() && !GetFrame()->View()->IsAttached()) { |
95 GetFrame()->FrameScheduler()->OnFirstMeaningfulPaint(); | 96 GetFrame()->FrameScheduler()->OnFirstMeaningfulPaint(); |
96 } | 97 } |
97 } | 98 } |
98 | 99 |
99 void PaintTiming::SetFirstMeaningfulPaint(double stamp) { | 100 void PaintTiming::SetFirstMeaningfulPaint( |
| 101 double stamp, |
| 102 FirstMeaningfulPaintDetector::HadUserInput had_input) { |
100 DCHECK_EQ(first_meaningful_paint_, 0.0); | 103 DCHECK_EQ(first_meaningful_paint_, 0.0); |
101 first_meaningful_paint_ = stamp; | 104 TRACE_EVENT_MARK_WITH_TIMESTAMP2("loading,rail,devtools.timeline", |
102 TRACE_EVENT_MARK_WITH_TIMESTAMP1( | 105 "firstMeaningfulPaint", |
103 "loading,rail,devtools.timeline", "firstMeaningfulPaint", | 106 TraceEvent::ToTraceTimestamp(stamp), "frame", |
104 TraceEvent::ToTraceTimestamp(first_meaningful_paint_), "frame", | 107 GetFrame(), "afterUserInput", had_input); |
105 GetFrame()); | 108 |
106 NotifyPaintTimingChanged(); | 109 // Notify FMP for UMA only if there's no user input before FMP, so that layout |
107 RegisterNotifySwapTime(PaintEvent::kFirstMeaningfulPaint); | 110 // changes caused by user interactions wouldn't be considered as FMP. |
| 111 if (had_input == FirstMeaningfulPaintDetector::kNoUserInput) { |
| 112 first_meaningful_paint_ = stamp; |
| 113 NotifyPaintTimingChanged(); |
| 114 RegisterNotifySwapTime(PaintEvent::kFirstMeaningfulPaint); |
| 115 } |
| 116 |
| 117 ReportUserInputHistogram(had_input); |
| 118 } |
| 119 |
| 120 void PaintTiming::ReportUserInputHistogram( |
| 121 FirstMeaningfulPaintDetector::HadUserInput had_input) { |
| 122 DEFINE_STATIC_LOCAL(EnumerationHistogram, had_user_input_histogram, |
| 123 ("PageLoad.Internal.PaintTiming." |
| 124 "HadUserInputBeforeFirstMeaningfulPaint", |
| 125 FirstMeaningfulPaintDetector::kHadUserInputEnumMax)); |
| 126 |
| 127 if (GetFrame() && GetFrame()->IsMainFrame()) |
| 128 had_user_input_histogram.Count(had_input); |
108 } | 129 } |
109 | 130 |
110 void PaintTiming::NotifyPaint(bool is_first_paint, | 131 void PaintTiming::NotifyPaint(bool is_first_paint, |
111 bool text_painted, | 132 bool text_painted, |
112 bool image_painted) { | 133 bool image_painted) { |
113 if (is_first_paint) | 134 if (is_first_paint) |
114 MarkFirstPaint(); | 135 MarkFirstPaint(); |
115 if (text_painted) | 136 if (text_painted) |
116 MarkFirstTextPaint(); | 137 MarkFirstTextPaint(); |
117 if (image_painted) | 138 if (image_painted) |
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189 performance->AddFirstContentfulPaintTiming(first_contentful_paint_); | 210 performance->AddFirstContentfulPaintTiming(first_contentful_paint_); |
190 return; | 211 return; |
191 case PaintEvent::kFirstMeaningfulPaint: | 212 case PaintEvent::kFirstMeaningfulPaint: |
192 first_meaningful_paint_swap_ = timestamp; | 213 first_meaningful_paint_swap_ = timestamp; |
193 return; | 214 return; |
194 } | 215 } |
195 NOTREACHED(); | 216 NOTREACHED(); |
196 } | 217 } |
197 | 218 |
198 } // namespace blink | 219 } // namespace blink |
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