Upstream version 5.34.104.0

[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / core / css / RuleFeature.h

diff --git a/src/third_party/WebKit/Source/core/css/RuleFeature.h b/src/third_party/WebKit/Source/core/css/RuleFeature.h
index e90bab4..bdce85f 100644 (file)
--- a/src/third_party/WebKit/Source/core/css/RuleFeature.h
+++ b/src/third_party/WebKit/Source/core/css/RuleFeature.h
@@ -29,10 +29,13 @@
 
 namespace WebCore {
 
+class Document;
+class ShadowRoot;
 class StyleRule;
 class CSSSelector;
 class CSSSelectorList;
 class RuleData;
+class SpaceSplitString;
 
 struct RuleFeature {
     RuleFeature(StyleRule* rule, unsigned selectorIndex, bool hasDocumentSecurityOrigin)
@@ -48,12 +51,12 @@ struct RuleFeature {
 
 class RuleFeatureSet {
 public:
-    RuleFeatureSet() { }
+    RuleFeatureSet();
 
     void add(const RuleFeatureSet&);
     void clear();
 
-    void collectFeaturesFromSelector(const CSSSelector*);
+    void collectFeaturesFromSelector(const CSSSelector&);
     void collectFeaturesFromRuleData(const RuleData&);
 
     bool usesSiblingRules() const { return !siblingRules.isEmpty(); }
@@ -71,7 +74,8 @@ public:
     inline bool hasSelectorForClass(const AtomicString& classValue) const
     {
         ASSERT(!classValue.isEmpty());
-        return m_metadata.classesInRules.contains(classValue);
+        return m_classInvalidationSets.get(classValue);
+
     }
 
     inline bool hasSelectorForId(const AtomicString& idValue) const
@@ -79,6 +83,11 @@ public:
         return m_metadata.idsInRules.contains(idValue);
     }
 
+    void scheduleStyleInvalidationForClassChange(const SpaceSplitString& changedClasses, Element*);
+    void scheduleStyleInvalidationForClassChange(const SpaceSplitString& oldClasses, const SpaceSplitString& newClasses, Element*);
+
+    void computeStyleInvalidation(Document&);
+
     int hasIdsInSelectors() const
     {
         return m_metadata.idsInRules.size() > 0;
@@ -93,6 +102,8 @@ public:
 
 private:
     typedef HashMap<AtomicString, RefPtr<DescendantInvalidationSet> > InvalidationSetMap;
+    typedef Vector<DescendantInvalidationSet*> InvalidationList;
+    typedef HashMap<Element*, InvalidationList*> PendingInvalidationMap;
     struct FeatureMetadata {
         FeatureMetadata()
             : usesFirstLineRules(false)
@@ -106,17 +117,37 @@ private:
         bool foundSiblingSelector;
         unsigned maxDirectAdjacentSelectors;
         HashSet<AtomicString> idsInRules;
-        HashSet<AtomicString> classesInRules;
         HashSet<AtomicString> attrsInRules;
     };
 
-    void collectFeaturesFromSelector(const CSSSelector*, FeatureMetadata&);
-    void collectFeaturesFromSelectorList(const CSSSelectorList*, FeatureMetadata&);
+    // These return true if setNeedsStyleRecalc() should be run on the Element, as a fallback.
+    bool computeInvalidationSetsForClassChange(const SpaceSplitString& changedClasses, Element*);
+    bool computeInvalidationSetsForClassChange(const SpaceSplitString& oldClasses, const SpaceSplitString& newClasses, Element*);
+
+    enum SelectorFeatureCollectionMode {
+        ProcessClasses,
+        DontProcessClasses
+    };
+
+    void collectFeaturesFromSelector(const CSSSelector&, FeatureMetadata&, SelectorFeatureCollectionMode processClasses);
+    void collectFeaturesFromSelectorList(const CSSSelectorList*, FeatureMetadata&, SelectorFeatureCollectionMode processClasses);
+
+    bool classInvalidationRequiresSubtreeRecalc(const AtomicString& className);
     DescendantInvalidationSet& ensureClassInvalidationSet(const AtomicString& className);
-    bool updateClassInvalidationSets(const CSSSelector*);
+    bool updateClassInvalidationSets(const CSSSelector&);
+
+    void addClassToInvalidationSet(const AtomicString& className, Element*);
+
+    bool invalidateStyleForClassChange(Element*, Vector<AtomicString>&, bool foundInvalidationSet);
+    bool invalidateStyleForClassChangeOnChildren(Element*, Vector<AtomicString>& invalidationClasses, bool foundInvalidationSet);
+
+    InvalidationList& ensurePendingInvalidationList(Element*);
 
-    InvalidationSetMap m_classInvalidationSets;
     FeatureMetadata m_metadata;
+    InvalidationSetMap m_classInvalidationSets;
+    PendingInvalidationMap m_pendingInvalidationMap;
+
+    bool m_targetedStyleRecalcEnabled;
 };
 
 } // namespace WebCore