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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, |
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| 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 resetRuleFeatures(); | 106 void resetRuleFeatures(); |
| 107 void finishAppendAuthorStyleSheets(); | 107 void finishAppendAuthorStyleSheets(); |
| 108 | 108 |
| 109 void lazyAppendAuthorStyleSheets(unsigned firstNew, const WillBeHeapVector<R
efPtrWillBeMember<CSSStyleSheet>>&); | 109 void lazyAppendAuthorStyleSheets(unsigned firstNew, const HeapVector<Member<
CSSStyleSheet>>&); |
| 110 void removePendingAuthorStyleSheets(const WillBeHeapVector<RefPtrWillBeMembe
r<CSSStyleSheet>>&); | 110 void removePendingAuthorStyleSheets(const HeapVector<Member<CSSStyleSheet>>&
); |
| 111 void appendPendingAuthorStyleSheets(); | 111 void appendPendingAuthorStyleSheets(); |
| 112 bool hasPendingAuthorStyleSheets() const { return m_pendingStyleSheets.size(
) > 0 || m_needCollectFeatures; } | 112 bool hasPendingAuthorStyleSheets() const { return m_pendingStyleSheets.size(
) > 0 || m_needCollectFeatures; } |
| 113 | 113 |
| 114 // TODO(esprehn): StyleResolver should probably not contain tree walking | 114 // TODO(esprehn): StyleResolver should probably not contain tree walking |
| 115 // state, instead we should pass a context object during recalcStyle. | 115 // state, instead we should pass a context object during recalcStyle. |
| 116 SelectorFilter& selectorFilter() { return m_selectorFilter; } | 116 SelectorFilter& selectorFilter() { return m_selectorFilter; } |
| 117 | 117 |
| 118 StyleRuleKeyframes* findKeyframesRule(const Element*, const AtomicString& an
imationName); | 118 StyleRuleKeyframes* findKeyframesRule(const Element*, const AtomicString& an
imationName); |
| 119 | 119 |
| 120 // These methods will give back the set of rules that matched for a given el
ement (or a pseudo-element). | 120 // These methods will give back the set of rules that matched for a given el
ement (or a pseudo-element). |
| 121 enum CSSRuleFilter { | 121 enum CSSRuleFilter { |
| 122 UAAndUserCSSRules = 1 << 1, | 122 UAAndUserCSSRules = 1 << 1, |
| 123 AuthorCSSRules = 1 << 2, | 123 AuthorCSSRules = 1 << 2, |
| 124 EmptyCSSRules = 1 << 3, | 124 EmptyCSSRules = 1 << 3, |
| 125 CrossOriginCSSRules = 1 << 4, | 125 CrossOriginCSSRules = 1 << 4, |
| 126 AllButEmptyCSSRules = UAAndUserCSSRules | AuthorCSSRules | CrossOriginCS
SRules, | 126 AllButEmptyCSSRules = UAAndUserCSSRules | AuthorCSSRules | CrossOriginCS
SRules, |
| 127 AllCSSRules = AllButEmptyCSSRules | EmptyCSSRules, | 127 AllCSSRules = AllButEmptyCSSRules | EmptyCSSRules, |
| 128 }; | 128 }; |
| 129 PassRefPtrWillBeRawPtr<CSSRuleList> cssRulesForElement(Element*, unsigned ru
lesToInclude = AllButEmptyCSSRules); | 129 RawPtr<CSSRuleList> cssRulesForElement(Element*, unsigned rulesToInclude = A
llButEmptyCSSRules); |
| 130 PassRefPtrWillBeRawPtr<CSSRuleList> pseudoCSSRulesForElement(Element*, Pseud
oId, unsigned rulesToInclude = AllButEmptyCSSRules); | 130 RawPtr<CSSRuleList> pseudoCSSRulesForElement(Element*, PseudoId, unsigned ru
lesToInclude = AllButEmptyCSSRules); |
| 131 PassRefPtrWillBeRawPtr<StyleRuleList> styleRulesForElement(Element*, unsigne
d rulesToInclude); | 131 RawPtr<StyleRuleList> styleRulesForElement(Element*, unsigned rulesToInclude
); |
| 132 | 132 |
| 133 void computeFont(ComputedStyle*, const StylePropertySet&); | 133 void computeFont(ComputedStyle*, const StylePropertySet&); |
| 134 | 134 |
| 135 ViewportStyleResolver* viewportStyleResolver() { return m_viewportStyleResol
ver.get(); } | 135 ViewportStyleResolver* viewportStyleResolver() { return m_viewportStyleResol
ver.get(); } |
| 136 | 136 |
| 137 void addViewportDependentMediaQueries(const MediaQueryResultList&); | 137 void addViewportDependentMediaQueries(const MediaQueryResultList&); |
| 138 bool hasViewportDependentMediaQueries() const { return !m_viewportDependentM
ediaQueryResults.isEmpty(); } | 138 bool hasViewportDependentMediaQueries() const { return !m_viewportDependentM
ediaQueryResults.isEmpty(); } |
| 139 bool mediaQueryAffectedByViewportChange() const; | 139 bool mediaQueryAffectedByViewportChange() const; |
| 140 void addDeviceDependentMediaQueries(const MediaQueryResultList&); | 140 void addDeviceDependentMediaQueries(const MediaQueryResultList&); |
| 141 bool mediaQueryAffectedByDeviceChange() const; | 141 bool mediaQueryAffectedByDeviceChange() const; |
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| 164 | 164 |
| 165 bool hasRulesForId(const AtomicString&) const; | 165 bool hasRulesForId(const AtomicString&) const; |
| 166 bool hasFullscreenUAStyle() const { return m_hasFullscreenUAStyle; } | 166 bool hasFullscreenUAStyle() const { return m_hasFullscreenUAStyle; } |
| 167 | 167 |
| 168 void addToStyleSharingList(Element&); | 168 void addToStyleSharingList(Element&); |
| 169 void clearStyleSharingList(); | 169 void clearStyleSharingList(); |
| 170 | 170 |
| 171 void increaseStyleSharingDepth() { ++m_styleSharingDepth; } | 171 void increaseStyleSharingDepth() { ++m_styleSharingDepth; } |
| 172 void decreaseStyleSharingDepth() { --m_styleSharingDepth; } | 172 void decreaseStyleSharingDepth() { --m_styleSharingDepth; } |
| 173 | 173 |
| 174 PassRefPtrWillBeRawPtr<PseudoElement> createPseudoElementIfNeeded(Element& p
arent, PseudoId); | 174 RawPtr<PseudoElement> createPseudoElementIfNeeded(Element& parent, PseudoId)
; |
| 175 | 175 |
| 176 DECLARE_TRACE(); | 176 DECLARE_TRACE(); |
| 177 | 177 |
| 178 void addTreeBoundaryCrossingScope(ContainerNode& scope); | 178 void addTreeBoundaryCrossingScope(ContainerNode& scope); |
| 179 void initWatchedSelectorRules(); | 179 void initWatchedSelectorRules(); |
| 180 | 180 |
| 181 private: | 181 private: |
| 182 explicit StyleResolver(Document&); | 182 explicit StyleResolver(Document&); |
| 183 | 183 |
| 184 PassRefPtr<ComputedStyle> initialStyleForElement(); | 184 PassRefPtr<ComputedStyle> initialStyleForElement(); |
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| 213 void applyAnimatedProperties(StyleResolverState&, const ActiveInterpolations
Map&); | 213 void applyAnimatedProperties(StyleResolverState&, const ActiveInterpolations
Map&); |
| 214 template <CSSPropertyPriority priority> | 214 template <CSSPropertyPriority priority> |
| 215 void applyAllProperty(StyleResolverState&, CSSValue*, bool inheritedOnly, Pr
opertyWhitelistType); | 215 void applyAllProperty(StyleResolverState&, CSSValue*, bool inheritedOnly, Pr
opertyWhitelistType); |
| 216 template <CSSPropertyPriority priority> | 216 template <CSSPropertyPriority priority> |
| 217 void applyPropertiesForApplyAtRule(StyleResolverState&, const CSSValue*, boo
l isImportant, bool inheritedOnly, PropertyWhitelistType); | 217 void applyPropertiesForApplyAtRule(StyleResolverState&, const CSSValue*, boo
l isImportant, bool inheritedOnly, PropertyWhitelistType); |
| 218 | 218 |
| 219 bool pseudoStyleForElementInternal(Element&, const PseudoStyleRequest&, cons
t ComputedStyle* parentStyle, StyleResolverState&); | 219 bool pseudoStyleForElementInternal(Element&, const PseudoStyleRequest&, cons
t ComputedStyle* parentStyle, StyleResolverState&); |
| 220 bool hasAuthorBackground(const StyleResolverState&); | 220 bool hasAuthorBackground(const StyleResolverState&); |
| 221 bool hasAuthorBorder(const StyleResolverState&); | 221 bool hasAuthorBorder(const StyleResolverState&); |
| 222 | 222 |
| 223 PassRefPtrWillBeRawPtr<PseudoElement> createPseudoElement(Element* parent, P
seudoId); | 223 RawPtr<PseudoElement> createPseudoElement(Element* parent, PseudoId); |
| 224 | 224 |
| 225 Document& document() { return *m_document; } | 225 Document& document() { return *m_document; } |
| 226 | 226 |
| 227 static ComputedStyle* s_styleNotYetAvailable; | 227 static ComputedStyle* s_styleNotYetAvailable; |
| 228 | 228 |
| 229 MatchedPropertiesCache m_matchedPropertiesCache; | 229 MatchedPropertiesCache m_matchedPropertiesCache; |
| 230 | 230 |
| 231 OwnPtrWillBeMember<MediaQueryEvaluator> m_medium; | 231 Member<MediaQueryEvaluator> m_medium; |
| 232 MediaQueryResultList m_viewportDependentMediaQueryResults; | 232 MediaQueryResultList m_viewportDependentMediaQueryResults; |
| 233 MediaQueryResultList m_deviceDependentMediaQueryResults; | 233 MediaQueryResultList m_deviceDependentMediaQueryResults; |
| 234 | 234 |
| 235 RawPtrWillBeMember<Document> m_document; | 235 Member<Document> m_document; |
| 236 SelectorFilter m_selectorFilter; | 236 SelectorFilter m_selectorFilter; |
| 237 | 237 |
| 238 OwnPtrWillBeMember<ViewportStyleResolver> m_viewportStyleResolver; | 238 Member<ViewportStyleResolver> m_viewportStyleResolver; |
| 239 | 239 |
| 240 WillBeHeapListHashSet<RawPtrWillBeMember<CSSStyleSheet>, 16> m_pendingStyleS
heets; | 240 HeapListHashSet<Member<CSSStyleSheet>, 16> m_pendingStyleSheets; |
| 241 | 241 |
| 242 // FIXME: The entire logic of collecting features on StyleResolver, as well
as transferring them | 242 // FIXME: The entire logic of collecting features on StyleResolver, as well
as transferring them |
| 243 // between various parts of machinery smells wrong. This needs to be better
somehow. | 243 // between various parts of machinery smells wrong. This needs to be better
somehow. |
| 244 RuleFeatureSet m_features; | 244 RuleFeatureSet m_features; |
| 245 OwnPtrWillBeMember<RuleSet> m_siblingRuleSet; | 245 Member<RuleSet> m_siblingRuleSet; |
| 246 OwnPtrWillBeMember<RuleSet> m_uncommonAttributeRuleSet; | 246 Member<RuleSet> m_uncommonAttributeRuleSet; |
| 247 OwnPtrWillBeMember<RuleSet> m_watchedSelectorsRules; | 247 Member<RuleSet> m_watchedSelectorsRules; |
| 248 | 248 |
| 249 DocumentOrderedList m_treeBoundaryCrossingScopes; | 249 DocumentOrderedList m_treeBoundaryCrossingScopes; |
| 250 | 250 |
| 251 bool m_needCollectFeatures; | 251 bool m_needCollectFeatures; |
| 252 bool m_printMediaType; | 252 bool m_printMediaType; |
| 253 bool m_hasFullscreenUAStyle = false; | 253 bool m_hasFullscreenUAStyle = false; |
| 254 | 254 |
| 255 unsigned m_styleSharingDepth; | 255 unsigned m_styleSharingDepth; |
| 256 WillBeHeapVector<OwnPtrWillBeMember<StyleSharingList>, styleSharingMaxDepth>
m_styleSharingLists; | 256 HeapVector<Member<StyleSharingList>, styleSharingMaxDepth> m_styleSharingLis
ts; |
| 257 }; | 257 }; |
| 258 | 258 |
| 259 } // namespace blink | 259 } // namespace blink |
| 260 | 260 |
| 261 #endif // StyleResolver_h | 261 #endif // StyleResolver_h |
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