Source/core/dom/StyleEngine.h - Issue 28553005: Avoid parsing css text if there are identical inline style blocks.

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Issue 28553005: Avoid parsing css text if there are identical inline style blocks. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Rebased Created 7 years, 1 month ago

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1 /*	1 /*

2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)	2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

3 * (C) 1999 Antti Koivisto (koivisto@kde.org)	3 * (C) 1999 Antti Koivisto (koivisto@kde.org)

4 * (C) 2001 Dirk Mueller (mueller@kde.org)	4 * (C) 2001 Dirk Mueller (mueller@kde.org)

5 * (C) 2006 Alexey Proskuryakov (ap@webkit.org)	5 * (C) 2006 Alexey Proskuryakov (ap@webkit.org)

6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All r ights reserved.	6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All r ights reserved.

7 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t orchmobile.com/)	7 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t orchmobile.com/)

8 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)	8 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)

9 * Copyright (C) 2011 Google Inc. All rights reserved.	9 * Copyright (C) 2011 Google Inc. All rights reserved.

10 *	10 *

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100 bool hasScopedStyleSheet() { return m_documentStyleSheetCollection.scopingNo desForStyleScoped(); }	100 bool hasScopedStyleSheet() { return m_documentStyleSheetCollection.scopingNo desForStyleScoped(); }

101	101

102 void combineCSSFeatureFlags(const RuleFeatureSet&);	102 void combineCSSFeatureFlags(const RuleFeatureSet&);

103 void resetCSSFeatureFlags(const RuleFeatureSet&);	103 void resetCSSFeatureFlags(const RuleFeatureSet&);

104	104

105 void didModifySeamlessParentStyleSheet() { m_needsDocumentStyleSheetsUpdate = true; }	105 void didModifySeamlessParentStyleSheet() { m_needsDocumentStyleSheetsUpdate = true; }

106 void didRemoveShadowRoot(ShadowRoot*);	106 void didRemoveShadowRoot(ShadowRoot*);

107 void appendActiveAuthorStyleSheets(StyleResolver*);	107 void appendActiveAuthorStyleSheets(StyleResolver*);

108 void getActiveAuthorStyleSheets(Vector<const Vector<RefPtr<CSSStyleSheet> >* >& activeAuthorStyleSheets) const;	108 void getActiveAuthorStyleSheets(Vector<const Vector<RefPtr<CSSStyleSheet> >* >& activeAuthorStyleSheets) const;

109	109

	110 static PassRefPtr<CSSStyleSheet> createSheet(Element*, const String& text, T extPosition startPosition, bool createdByParser);

	111 static void removeSheet(StyleSheetContents*);

	112 static void clearSheetCache();

	113

110 private:	114 private:

111 StyleEngine(Document&);	115 StyleEngine(Document&);

112	116

113 StyleSheetCollection* ensureStyleSheetCollectionFor(TreeScope&);	117 StyleSheetCollection* ensureStyleSheetCollectionFor(TreeScope&);

114 StyleSheetCollection* styleSheetCollectionFor(TreeScope&);	118 StyleSheetCollection* styleSheetCollectionFor(TreeScope&);

115 void activeStyleSheetsUpdatedForInspector();	119 void activeStyleSheetsUpdatedForInspector();

116 bool shouldUpdateShadowTreeStyleSheetCollection(StyleResolverUpdateMode);	120 bool shouldUpdateShadowTreeStyleSheetCollection(StyleResolverUpdateMode);

117	121

118 typedef ListHashSet<TreeScope*, 16> TreeScopeSet;	122 typedef ListHashSet<TreeScope*, 16> TreeScopeSet;

119 static void insertTreeScopeInDocumentOrder(TreeScopeSet&, TreeScope*);	123 static void insertTreeScopeInDocumentOrder(TreeScopeSet&, TreeScope*);

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147 bool m_usesSiblingRulesOverride;	151 bool m_usesSiblingRulesOverride;

148 bool m_usesFirstLineRules;	152 bool m_usesFirstLineRules;

149 bool m_usesFirstLetterRules;	153 bool m_usesFirstLetterRules;

150 bool m_usesRemUnits;	154 bool m_usesRemUnits;

151 unsigned m_maxDirectAdjacentSelectors;	155 unsigned m_maxDirectAdjacentSelectors;

152 };	156 };

153	157

154 }	158 }

155	159

156 #endif	160 #endif

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