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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 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
All rights reserved. | 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
All rights reserved. |
| 4 * | 4 * |
| 5 * This library is free software; you can redistribute it and/or | 5 * This library is free software; you can redistribute it and/or |
| 6 * modify it under the terms of the GNU Library General Public | 6 * modify it under the terms of the GNU Library General Public |
| 7 * License as published by the Free Software Foundation; either | 7 * License as published by the Free Software Foundation; either |
| 8 * version 2 of the License, or (at your option) any later version. | 8 * version 2 of the License, or (at your option) any later version. |
| 9 * | 9 * |
| 10 * This library is distributed in the hope that it will be useful, | 10 * This library is distributed in the hope that it will be useful, |
| (...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 65 DisallowStyleSharing, | 65 DisallowStyleSharing, |
| 66 }; | 66 }; |
| 67 | 67 |
| 68 enum RuleMatchingBehavior { | 68 enum RuleMatchingBehavior { |
| 69 MatchAllRules, | 69 MatchAllRules, |
| 70 MatchAllRulesExcludingSMIL | 70 MatchAllRulesExcludingSMIL |
| 71 }; | 71 }; |
| 72 | 72 |
| 73 const unsigned styleSharingListSize = 15; | 73 const unsigned styleSharingListSize = 15; |
| 74 const unsigned styleSharingMaxDepth = 32; | 74 const unsigned styleSharingMaxDepth = 32; |
| 75 using StyleSharingList = WillBeHeapDeque<RawPtrWillBeMember<Element>, styleShari
ngListSize>; | 75 using StyleSharingList = HeapDeque<Member<Element>, styleSharingListSize>; |
| 76 using ActiveInterpolationsMap = HashMap<PropertyHandle, Vector<RefPtr<Interpolat
ion>, 1>>; | 76 using ActiveInterpolationsMap = HashMap<PropertyHandle, Vector<RefPtr<Interpolat
ion>, 1>>; |
| 77 | 77 |
| 78 // This class selects a ComputedStyle for a given element based on a collection
of stylesheets. | 78 // This class selects a ComputedStyle for a given element based on a collection
of stylesheets. |
| 79 class CORE_EXPORT StyleResolver final : public NoBaseWillBeGarbageCollectedFinal
ized<StyleResolver> { | 79 class CORE_EXPORT StyleResolver final : public GarbageCollectedFinalized<StyleRe
solver> { |
| 80 WTF_MAKE_NONCOPYABLE(StyleResolver); USING_FAST_MALLOC_WILL_BE_REMOVED(Style
Resolver); | 80 WTF_MAKE_NONCOPYABLE(StyleResolver); |
| 81 public: | 81 public: |
| 82 static PassOwnPtrWillBeRawPtr<StyleResolver> create(Document& document) | 82 static RawPtr<StyleResolver> create(Document& document) |
| 83 { | 83 { |
| 84 return adoptPtrWillBeNoop(new StyleResolver(document)); | 84 return (new StyleResolver(document)); |
| 85 } | 85 } |
| 86 ~StyleResolver(); | 86 ~StyleResolver(); |
| 87 void dispose(); | 87 void dispose(); |
| 88 | 88 |
| 89 PassRefPtr<ComputedStyle> styleForElement(Element*, const ComputedStyle* par
entStyle = 0, StyleSharingBehavior = AllowStyleSharing, | 89 PassRefPtr<ComputedStyle> styleForElement(Element*, const ComputedStyle* par
entStyle = 0, StyleSharingBehavior = AllowStyleSharing, |
| 90 RuleMatchingBehavior = MatchAllRules); | 90 RuleMatchingBehavior = MatchAllRules); |
| 91 | 91 |
| 92 static PassRefPtr<AnimatableValue> createAnimatableValueSnapshot(Element&, c
onst ComputedStyle* baseStyle, CSSPropertyID, CSSValue*); | 92 static PassRefPtr<AnimatableValue> createAnimatableValueSnapshot(Element&, c
onst ComputedStyle* baseStyle, CSSPropertyID, CSSValue*); |
| 93 static PassRefPtr<AnimatableValue> createAnimatableValueSnapshot(StyleResolv
erState&, CSSPropertyID, CSSValue*); | 93 static PassRefPtr<AnimatableValue> createAnimatableValueSnapshot(StyleResolv
erState&, CSSPropertyID, CSSValue*); |
| 94 | 94 |
| 95 PassRefPtr<ComputedStyle> pseudoStyleForElement(Element*, const PseudoStyleR
equest&, const ComputedStyle* parentStyle); | 95 PassRefPtr<ComputedStyle> pseudoStyleForElement(Element*, const PseudoStyleR
equest&, const ComputedStyle* parentStyle); |
| 96 | 96 |
| 97 PassRefPtr<ComputedStyle> styleForPage(int pageIndex); | 97 PassRefPtr<ComputedStyle> styleForPage(int pageIndex); |
| 98 PassRefPtr<ComputedStyle> styleForText(Text*); | 98 PassRefPtr<ComputedStyle> styleForText(Text*); |
| 99 | 99 |
| 100 static PassRefPtr<ComputedStyle> styleForDocument(Document&); | 100 static PassRefPtr<ComputedStyle> styleForDocument(Document&); |
| 101 | 101 |
| 102 // FIXME: It could be better to call appendAuthorStyleSheets() directly afte
r we factor StyleResolver further. | 102 // FIXME: It could be better to call appendAuthorStyleSheets() directly afte
r we factor StyleResolver further. |
| 103 // https://bugs.webkit.org/show_bug.cgi?id=108890 | 103 // https://bugs.webkit.org/show_bug.cgi?id=108890 |
| 104 void appendAuthorStyleSheets(const WillBeHeapVector<RefPtrWillBeMember<CSSSt
yleSheet>>&); | 104 void appendAuthorStyleSheets(const HeapVector<Member<CSSStyleSheet>>&); |
| 105 void resetAuthorStyle(TreeScope&); | 105 void resetAuthorStyle(TreeScope&); |
| 106 void finishAppendAuthorStyleSheets(); | 106 void finishAppendAuthorStyleSheets(); |
| 107 | 107 |
| 108 void lazyAppendAuthorStyleSheets(unsigned firstNew, const WillBeHeapVector<R
efPtrWillBeMember<CSSStyleSheet>>&); | 108 void lazyAppendAuthorStyleSheets(unsigned firstNew, const HeapVector<Member<
CSSStyleSheet>>&); |
| 109 void removePendingAuthorStyleSheets(const WillBeHeapVector<RefPtrWillBeMembe
r<CSSStyleSheet>>&); | 109 void removePendingAuthorStyleSheets(const HeapVector<Member<CSSStyleSheet>>&
); |
| 110 void appendPendingAuthorStyleSheets(); | 110 void appendPendingAuthorStyleSheets(); |
| 111 bool hasPendingAuthorStyleSheets() const { return m_pendingStyleSheets.size(
) > 0 || m_needCollectFeatures; } | 111 bool hasPendingAuthorStyleSheets() const { return m_pendingStyleSheets.size(
) > 0 || m_needCollectFeatures; } |
| 112 | 112 |
| 113 // TODO(esprehn): StyleResolver should probably not contain tree walking | 113 // TODO(esprehn): StyleResolver should probably not contain tree walking |
| 114 // state, instead we should pass a context object during recalcStyle. | 114 // state, instead we should pass a context object during recalcStyle. |
| 115 SelectorFilter& selectorFilter() { return m_selectorFilter; } | 115 SelectorFilter& selectorFilter() { return m_selectorFilter; } |
| 116 | 116 |
| 117 StyleRuleKeyframes* findKeyframesRule(const Element*, const AtomicString& an
imationName); | 117 StyleRuleKeyframes* findKeyframesRule(const Element*, const AtomicString& an
imationName); |
| 118 | 118 |
| 119 // These methods will give back the set of rules that matched for a given el
ement (or a pseudo-element). | 119 // These methods will give back the set of rules that matched for a given el
ement (or a pseudo-element). |
| 120 enum CSSRuleFilter { | 120 enum CSSRuleFilter { |
| 121 UAAndUserCSSRules = 1 << 1, | 121 UAAndUserCSSRules = 1 << 1, |
| 122 AuthorCSSRules = 1 << 2, | 122 AuthorCSSRules = 1 << 2, |
| 123 EmptyCSSRules = 1 << 3, | 123 EmptyCSSRules = 1 << 3, |
| 124 CrossOriginCSSRules = 1 << 4, | 124 CrossOriginCSSRules = 1 << 4, |
| 125 AllButEmptyCSSRules = UAAndUserCSSRules | AuthorCSSRules | CrossOriginCS
SRules, | 125 AllButEmptyCSSRules = UAAndUserCSSRules | AuthorCSSRules | CrossOriginCS
SRules, |
| 126 AllCSSRules = AllButEmptyCSSRules | EmptyCSSRules, | 126 AllCSSRules = AllButEmptyCSSRules | EmptyCSSRules, |
| 127 }; | 127 }; |
| 128 PassRefPtrWillBeRawPtr<CSSRuleList> cssRulesForElement(Element*, unsigned ru
lesToInclude = AllButEmptyCSSRules); | 128 RawPtr<CSSRuleList> cssRulesForElement(Element*, unsigned rulesToInclude = A
llButEmptyCSSRules); |
| 129 PassRefPtrWillBeRawPtr<CSSRuleList> pseudoCSSRulesForElement(Element*, Pseud
oId, unsigned rulesToInclude = AllButEmptyCSSRules); | 129 RawPtr<CSSRuleList> pseudoCSSRulesForElement(Element*, PseudoId, unsigned ru
lesToInclude = AllButEmptyCSSRules); |
| 130 PassRefPtrWillBeRawPtr<StyleRuleList> styleRulesForElement(Element*, unsigne
d rulesToInclude); | 130 RawPtr<StyleRuleList> styleRulesForElement(Element*, unsigned rulesToInclude
); |
| 131 | 131 |
| 132 void computeFont(ComputedStyle*, const StylePropertySet&); | 132 void computeFont(ComputedStyle*, const StylePropertySet&); |
| 133 | 133 |
| 134 ViewportStyleResolver* viewportStyleResolver() { return m_viewportStyleResol
ver.get(); } | 134 ViewportStyleResolver* viewportStyleResolver() { return m_viewportStyleResol
ver.get(); } |
| 135 | 135 |
| 136 void addViewportDependentMediaQueries(const MediaQueryResultList&); | 136 void addViewportDependentMediaQueries(const MediaQueryResultList&); |
| 137 bool hasViewportDependentMediaQueries() const { return !m_viewportDependentM
ediaQueryResults.isEmpty(); } | 137 bool hasViewportDependentMediaQueries() const { return !m_viewportDependentM
ediaQueryResults.isEmpty(); } |
| 138 bool mediaQueryAffectedByViewportChange() const; | 138 bool mediaQueryAffectedByViewportChange() const; |
| 139 void addDeviceDependentMediaQueries(const MediaQueryResultList&); | 139 void addDeviceDependentMediaQueries(const MediaQueryResultList&); |
| 140 bool mediaQueryAffectedByDeviceChange() const; | 140 bool mediaQueryAffectedByDeviceChange() const; |
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| 162 StyleSharingList& styleSharingList(); | 162 StyleSharingList& styleSharingList(); |
| 163 | 163 |
| 164 bool hasRulesForId(const AtomicString&) const; | 164 bool hasRulesForId(const AtomicString&) const; |
| 165 | 165 |
| 166 void addToStyleSharingList(Element&); | 166 void addToStyleSharingList(Element&); |
| 167 void clearStyleSharingList(); | 167 void clearStyleSharingList(); |
| 168 | 168 |
| 169 void increaseStyleSharingDepth() { ++m_styleSharingDepth; } | 169 void increaseStyleSharingDepth() { ++m_styleSharingDepth; } |
| 170 void decreaseStyleSharingDepth() { --m_styleSharingDepth; } | 170 void decreaseStyleSharingDepth() { --m_styleSharingDepth; } |
| 171 | 171 |
| 172 PassRefPtrWillBeRawPtr<PseudoElement> createPseudoElementIfNeeded(Element& p
arent, PseudoId); | 172 RawPtr<PseudoElement> createPseudoElementIfNeeded(Element& parent, PseudoId)
; |
| 173 | 173 |
| 174 DECLARE_TRACE(); | 174 DECLARE_TRACE(); |
| 175 | 175 |
| 176 void addTreeBoundaryCrossingScope(ContainerNode& scope); | 176 void addTreeBoundaryCrossingScope(ContainerNode& scope); |
| 177 | 177 |
| 178 private: | 178 private: |
| 179 explicit StyleResolver(Document&); | 179 explicit StyleResolver(Document&); |
| 180 | 180 |
| 181 PassRefPtr<ComputedStyle> initialStyleForElement(); | 181 PassRefPtr<ComputedStyle> initialStyleForElement(); |
| 182 | 182 |
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| 209 void applyProperties(StyleResolverState&, const StylePropertySet* properties
, bool isImportant, bool inheritedOnly, PropertyWhitelistType = PropertyWhitelis
tNone); | 209 void applyProperties(StyleResolverState&, const StylePropertySet* properties
, bool isImportant, bool inheritedOnly, PropertyWhitelistType = PropertyWhitelis
tNone); |
| 210 template <CSSPropertyPriority priority> | 210 template <CSSPropertyPriority priority> |
| 211 void applyAnimatedProperties(StyleResolverState&, const ActiveInterpolations
Map&); | 211 void applyAnimatedProperties(StyleResolverState&, const ActiveInterpolations
Map&); |
| 212 template <CSSPropertyPriority priority> | 212 template <CSSPropertyPriority priority> |
| 213 void applyAllProperty(StyleResolverState&, CSSValue*, bool inheritedOnly, Pr
opertyWhitelistType); | 213 void applyAllProperty(StyleResolverState&, CSSValue*, bool inheritedOnly, Pr
opertyWhitelistType); |
| 214 | 214 |
| 215 bool pseudoStyleForElementInternal(Element&, const PseudoStyleRequest&, cons
t ComputedStyle* parentStyle, StyleResolverState&); | 215 bool pseudoStyleForElementInternal(Element&, const PseudoStyleRequest&, cons
t ComputedStyle* parentStyle, StyleResolverState&); |
| 216 bool hasAuthorBackground(const StyleResolverState&); | 216 bool hasAuthorBackground(const StyleResolverState&); |
| 217 bool hasAuthorBorder(const StyleResolverState&); | 217 bool hasAuthorBorder(const StyleResolverState&); |
| 218 | 218 |
| 219 PassRefPtrWillBeRawPtr<PseudoElement> createPseudoElement(Element* parent, P
seudoId); | 219 RawPtr<PseudoElement> createPseudoElement(Element* parent, PseudoId); |
| 220 | 220 |
| 221 Document& document() { return *m_document; } | 221 Document& document() { return *m_document; } |
| 222 | 222 |
| 223 static ComputedStyle* s_styleNotYetAvailable; | 223 static ComputedStyle* s_styleNotYetAvailable; |
| 224 | 224 |
| 225 MatchedPropertiesCache m_matchedPropertiesCache; | 225 MatchedPropertiesCache m_matchedPropertiesCache; |
| 226 | 226 |
| 227 OwnPtrWillBeMember<MediaQueryEvaluator> m_medium; | 227 Member<MediaQueryEvaluator> m_medium; |
| 228 MediaQueryResultList m_viewportDependentMediaQueryResults; | 228 MediaQueryResultList m_viewportDependentMediaQueryResults; |
| 229 MediaQueryResultList m_deviceDependentMediaQueryResults; | 229 MediaQueryResultList m_deviceDependentMediaQueryResults; |
| 230 | 230 |
| 231 RawPtrWillBeMember<Document> m_document; | 231 Member<Document> m_document; |
| 232 SelectorFilter m_selectorFilter; | 232 SelectorFilter m_selectorFilter; |
| 233 | 233 |
| 234 OwnPtrWillBeMember<ViewportStyleResolver> m_viewportStyleResolver; | 234 Member<ViewportStyleResolver> m_viewportStyleResolver; |
| 235 | 235 |
| 236 WillBeHeapListHashSet<RawPtrWillBeMember<CSSStyleSheet>, 16> m_pendingStyleS
heets; | 236 HeapListHashSet<Member<CSSStyleSheet>, 16> m_pendingStyleSheets; |
| 237 | 237 |
| 238 // FIXME: The entire logic of collecting features on StyleResolver, as well
as transferring them | 238 // FIXME: The entire logic of collecting features on StyleResolver, as well
as transferring them |
| 239 // between various parts of machinery smells wrong. This needs to be better
somehow. | 239 // between various parts of machinery smells wrong. This needs to be better
somehow. |
| 240 RuleFeatureSet m_features; | 240 RuleFeatureSet m_features; |
| 241 OwnPtrWillBeMember<RuleSet> m_siblingRuleSet; | 241 Member<RuleSet> m_siblingRuleSet; |
| 242 OwnPtrWillBeMember<RuleSet> m_uncommonAttributeRuleSet; | 242 Member<RuleSet> m_uncommonAttributeRuleSet; |
| 243 OwnPtrWillBeMember<RuleSet> m_watchedSelectorsRules; | 243 Member<RuleSet> m_watchedSelectorsRules; |
| 244 | 244 |
| 245 DocumentOrderedList m_treeBoundaryCrossingScopes; | 245 DocumentOrderedList m_treeBoundaryCrossingScopes; |
| 246 | 246 |
| 247 bool m_needCollectFeatures; | 247 bool m_needCollectFeatures; |
| 248 bool m_printMediaType; | 248 bool m_printMediaType; |
| 249 | 249 |
| 250 unsigned m_styleSharingDepth; | 250 unsigned m_styleSharingDepth; |
| 251 WillBeHeapVector<OwnPtrWillBeMember<StyleSharingList>, styleSharingMaxDepth>
m_styleSharingLists; | 251 HeapVector<Member<StyleSharingList>, styleSharingMaxDepth> m_styleSharingLis
ts; |
| 252 }; | 252 }; |
| 253 | 253 |
| 254 } // namespace blink | 254 } // namespace blink |
| 255 | 255 |
| 256 #endif // StyleResolver_h | 256 #endif // StyleResolver_h |
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