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88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ScopedStyleResolver_h
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#define ScopedStyleResolver_h
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#include "core/css/ElementRuleCollector.h"
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#include "core/css/RuleSet.h"
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#include "core/dom/TreeScope.h"
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#include "wtf/HashMap.h"
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#include "wtf/HashSet.h"
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#include "wtf/OwnPtr.h"
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#include "wtf/PassOwnPtr.h"
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namespace blink {
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class MediaQueryEvaluator;
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class StyleResolver;
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class StyleSheetContents;
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// This class selects a RenderStyle for a given element based on a collection of stylesheets.
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class ScopedStyleResolver FINAL : public NoBaseWillBeGarbageCollected<ScopedStyleResolver> {
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WTF_MAKE_NONCOPYABLE(ScopedStyleResolver);
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WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
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public:
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static PassOwnPtrWillBeRawPtr<ScopedStyleResolver> create(TreeScope& scope)
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{
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return adoptPtrWillBeNoop(new ScopedStyleResolver(scope));
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}
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static TreeScope* treeScopeFor(Document&, const CSSStyleSheet*);
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const TreeScope& treeScope() const { return *m_scope; }
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ScopedStyleResolver* parent() const;
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public:
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const StyleRuleKeyframes* keyframeStylesForAnimation(const StringImpl* animationName);
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void addKeyframeStyle(PassRefPtrWillBeRawPtr<StyleRuleKeyframes>);
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void collectMatchingAuthorRules(ElementRuleCollector&, bool includeEmptyRules, bool applyAuthorStyles, CascadeScope, CascadeOrder = ignoreCascadeOrder);
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void addRulesFromSheet(CSSStyleSheet*, const MediaQueryEvaluator&, StyleResolver*);
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void collectFeaturesTo(RuleFeatureSet&, HashSet<const StyleSheetContents*>& visitedSharedStyleSheetContents) const;
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void resetAuthorStyle();
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void collectViewportRulesTo(StyleResolver*) const;
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void trace(Visitor*);
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private:
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explicit ScopedStyleResolver(TreeScope& scope)
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: m_scope(scope)
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{
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}
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RawPtrWillBeMember<TreeScope> m_scope;
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WillBeHeapVector<RawPtrWillBeMember<CSSStyleSheet> > m_authorStyleSheets;
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typedef WillBeHeapHashMap<const StringImpl*, RefPtrWillBeMember<StyleRuleKeyframes> > KeyframesRuleMap;
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KeyframesRuleMap m_keyframesRuleMap;
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};
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} // namespace blink
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#endif // ScopedStyleResolver_h
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