Source/core/dom/ScriptElement.h - Issue 15871005: Avoid N^2 walk placing renderers when building the render tree

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Issue 15871005: Avoid N^2 walk placing renderers when building the render tree (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Adding a mitigation for the perf regression to Element::recalcStyle. Created 7 years, 5 months ago

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1 /*	1 /*

2 * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>	2 * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>

3 *	3 *

4 * This library is free software; you can redistribute it and/or	4 * This library is free software; you can redistribute it and/or

5 * modify it under the terms of the GNU Library General Public	5 * modify it under the terms of the GNU Library General Public

6 * License as published by the Free Software Foundation; either	6 * License as published by the Free Software Foundation; either

7 * version 2 of the License, or (at your option) any later version.	7 * version 2 of the License, or (at your option) any later version.

8 *	8 *

9 * This library is distributed in the hope that it will be useful,	9 * This library is distributed in the hope that it will be useful,

10 * but WITHOUT ANY WARRANTY; without even the implied warranty of	10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

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42 Element* element() const { return m_element; }	42 Element* element() const { return m_element; }

43	43

44 enum LegacyTypeSupport { DisallowLegacyTypeInTypeAttribute, AllowLegacyTypeI nTypeAttribute };	44 enum LegacyTypeSupport { DisallowLegacyTypeInTypeAttribute, AllowLegacyTypeI nTypeAttribute };

45 bool prepareScript(const TextPosition& scriptStartPosition = TextPosition::m inimumPosition(), LegacyTypeSupport = DisallowLegacyTypeInTypeAttribute);	45 bool prepareScript(const TextPosition& scriptStartPosition = TextPosition::m inimumPosition(), LegacyTypeSupport = DisallowLegacyTypeInTypeAttribute);

46	46

47 String scriptCharset() const { return m_characterEncoding; }	47 String scriptCharset() const { return m_characterEncoding; }

48 String scriptContent() const;	48 String scriptContent() const;

49 void executeScript(const ScriptSourceCode&);	49 void executeScript(const ScriptSourceCode&);

50 void execute(CachedScript*);	50 void execute(CachedScript*);

51	51

	52 static void prepareScriptCallback(Element*);

	53

52 // XML parser calls these	54 // XML parser calls these

53 virtual void dispatchLoadEvent() = 0;	55 virtual void dispatchLoadEvent() = 0;

54 void dispatchErrorEvent();	56 void dispatchErrorEvent();

55 bool isScriptTypeSupported(LegacyTypeSupport) const;	57 bool isScriptTypeSupported(LegacyTypeSupport) const;

56	58

57 bool haveFiredLoadEvent() const { return m_haveFiredLoad; }	59 bool haveFiredLoadEvent() const { return m_haveFiredLoad; }

58 bool willBeParserExecuted() const { return m_willBeParserExecuted; }	60 bool willBeParserExecuted() const { return m_willBeParserExecuted; }

59 bool readyToBeParserExecuted() const { return m_readyToBeParserExecuted; }	61 bool readyToBeParserExecuted() const { return m_readyToBeParserExecuted; }

60 bool willExecuteWhenDocumentFinishedParsing() const { return m_willExecuteWh enDocumentFinishedParsing; }	62 bool willExecuteWhenDocumentFinishedParsing() const { return m_willExecuteWh enDocumentFinishedParsing; }

61 CachedResourceHandle<CachedScript> cachedScript() { return m_cachedScript; }	63 CachedResourceHandle<CachedScript> cachedScript() { return m_cachedScript; }

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106 bool m_requestUsesAccessControl : 1;	108 bool m_requestUsesAccessControl : 1;

107 String m_characterEncoding;	109 String m_characterEncoding;

108 String m_fallbackCharacterEncoding;	110 String m_fallbackCharacterEncoding;

109 };	111 };

110	112

111 ScriptElement* toScriptElementIfPossible(Element*);	113 ScriptElement* toScriptElementIfPossible(Element*);

112	114

113 }	115 }

114	116

115 #endif	117 #endif

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