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1 /* | 1 /* |
2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. | 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
(...skipping 70 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
81 } | 81 } |
82 | 82 |
83 HTMLParserScheduler::~HTMLParserScheduler() | 83 HTMLParserScheduler::~HTMLParserScheduler() |
84 { | 84 { |
85 m_continueNextChunkTimer.stop(); | 85 m_continueNextChunkTimer.stop(); |
86 } | 86 } |
87 | 87 |
88 void HTMLParserScheduler::continueNextChunkTimerFired(Timer<HTMLParserScheduler> * timer) | 88 void HTMLParserScheduler::continueNextChunkTimerFired(Timer<HTMLParserScheduler> * timer) |
89 { | 89 { |
90 ASSERT_UNUSED(timer, timer == &m_continueNextChunkTimer); | 90 ASSERT_UNUSED(timer, timer == &m_continueNextChunkTimer); |
91 // FIXME: The timer class should handle timer priorities instead of this cod e. | |
92 // If a layout is scheduled, wait again to let the layout timer run first. | |
93 // FIXME: We should fix this by reducing the max-parse-time instead of | |
94 // artificially forcing the parser to yield agressively before first layout. | |
95 if (m_parser->document()->shouldParserYieldAgressivelyBeforeScriptExecution( )) { | |
abarth-chromium
2014/03/29 20:20:35
Can we delete shouldParserYieldAgressivelyBeforeSc
| |
96 m_continueNextChunkTimer.startOneShot(0, FROM_HERE); | |
97 return; | |
98 } | |
99 m_parser->resumeParsingAfterYield(); | 91 m_parser->resumeParsingAfterYield(); |
100 } | 92 } |
101 | 93 |
102 void HTMLParserScheduler::checkForYieldBeforeScript(PumpSession& session) | 94 void HTMLParserScheduler::checkForYieldBeforeScript(PumpSession& session) |
103 { | 95 { |
104 // If we've never painted before and a layout is pending, yield prior to run ning | 96 // If we've never painted before and a layout is pending, yield prior to run ning |
105 // scripts to give the page a chance to paint earlier. | 97 // scripts to give the page a chance to paint earlier. |
106 Document* document = m_parser->document(); | 98 Document* document = m_parser->document(); |
107 bool needsFirstPaint = document->view() && !document->view()->hasEverPainted (); | 99 bool needsFirstPaint = document->view() && !document->view()->hasEverPainted (); |
108 if (needsFirstPaint && document->shouldParserYieldAgressivelyBeforeScriptExe cution()) | 100 if (needsFirstPaint && document->shouldParserYieldAgressivelyBeforeScriptExe cution()) |
109 session.needsYield = true; | 101 session.needsYield = true; |
110 session.didSeeScript = true; | 102 session.didSeeScript = true; |
111 } | 103 } |
112 | 104 |
113 void HTMLParserScheduler::scheduleForResume() | 105 void HTMLParserScheduler::scheduleForResume() |
114 { | 106 { |
115 m_continueNextChunkTimer.startOneShot(0, FROM_HERE); | 107 m_continueNextChunkTimer.startOneShot(0, FROM_HERE); |
116 } | 108 } |
117 | 109 |
118 | |
119 void HTMLParserScheduler::suspend() | 110 void HTMLParserScheduler::suspend() |
120 { | 111 { |
121 ASSERT(!m_isSuspendedWithActiveTimer); | 112 ASSERT(!m_isSuspendedWithActiveTimer); |
122 if (!m_continueNextChunkTimer.isActive()) | 113 if (!m_continueNextChunkTimer.isActive()) |
123 return; | 114 return; |
124 m_isSuspendedWithActiveTimer = true; | 115 m_isSuspendedWithActiveTimer = true; |
125 m_continueNextChunkTimer.stop(); | 116 m_continueNextChunkTimer.stop(); |
126 } | 117 } |
127 | 118 |
128 void HTMLParserScheduler::resume() | 119 void HTMLParserScheduler::resume() |
129 { | 120 { |
130 ASSERT(!m_continueNextChunkTimer.isActive()); | 121 ASSERT(!m_continueNextChunkTimer.isActive()); |
131 if (!m_isSuspendedWithActiveTimer) | 122 if (!m_isSuspendedWithActiveTimer) |
132 return; | 123 return; |
133 m_isSuspendedWithActiveTimer = false; | 124 m_isSuspendedWithActiveTimer = false; |
134 m_continueNextChunkTimer.startOneShot(0, FROM_HERE); | 125 m_continueNextChunkTimer.startOneShot(0, FROM_HERE); |
135 } | 126 } |
136 | 127 |
137 } | 128 } |
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