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.
4 * Copyright (C) 2012 Google Inc. All rights reserved.
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7 * modification, are permitted provided that the following conditions
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13 * documentation and/or other materials provided with the distribution.
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16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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27 #ifndef ScopedStyleResolver_h
28 #define ScopedStyleResolver_h
30 #include "core/css/ElementRuleCollector.h"
31 #include "core/css/RuleSet.h"
32 #include "core/dom/ContainerNode.h"
33 #include "wtf/HashMap.h"
34 #include "wtf/HashSet.h"
35 #include "wtf/OwnPtr.h"
36 #include "wtf/PassOwnPtr.h"
40 class MediaQueryEvaluator;
41 class PageRuleCollector;
42 class StyleSheetContents;
44 // This class selects a RenderStyle for a given element based on a collection of stylesheets.
45 class ScopedStyleResolver {
46 WTF_MAKE_NONCOPYABLE(ScopedStyleResolver); WTF_MAKE_FAST_ALLOCATED;
48 static PassOwnPtr<ScopedStyleResolver> create(ContainerNode& scopingNode) { return adoptPtr(new ScopedStyleResolver(scopingNode)); }
50 static ContainerNode* scopingNodeFor(Document&, const CSSStyleSheet*);
52 const ContainerNode& scopingNode() const { return m_scopingNode; }
53 const TreeScope& treeScope() const { return m_scopingNode.treeScope(); }
54 void setParent(ScopedStyleResolver* newParent) { m_parent = newParent; }
55 ScopedStyleResolver* parent() { return m_parent; }
58 const StyleRuleKeyframes* keyframeStylesForAnimation(const StringImpl* animationName);
59 void addKeyframeStyle(PassRefPtrWillBeRawPtr<StyleRuleKeyframes>);
61 void collectMatchingAuthorRules(ElementRuleCollector&, bool includeEmptyRules, bool applyAuthorStyles, CascadeScope, CascadeOrder = ignoreCascadeOrder);
62 void matchPageRules(PageRuleCollector&);
63 void addRulesFromSheet(CSSStyleSheet*, const MediaQueryEvaluator&, StyleResolver*);
64 void collectFeaturesTo(RuleFeatureSet&, HashSet<const StyleSheetContents*>& visitedSharedStyleSheetContents);
65 void resetAuthorStyle();
66 void collectViewportRulesTo(StyleResolver*) const;
69 explicit ScopedStyleResolver(ContainerNode& scopingNode) : m_scopingNode(scopingNode), m_parent(0) { }
71 ContainerNode& m_scopingNode;
72 ScopedStyleResolver* m_parent;
74 WillBePersistentHeapVector<RawPtrWillBeMember<CSSStyleSheet> > m_authorStyleSheets;
76 typedef WillBePersistentHeapHashMap<const StringImpl*, RefPtrWillBeMember<StyleRuleKeyframes> > KeyframesRuleMap;
77 KeyframesRuleMap m_keyframesRuleMap;
80 } // namespace WebCore
82 #endif // ScopedStyleResolver_h