| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef ScopedStyleResolver_h |
| #define ScopedStyleResolver_h |
| |
| #include "core/css/ElementRuleCollector.h" |
| #include "core/css/RuleSet.h" |
| #include "core/dom/ContainerNode.h" |
| #include "wtf/HashMap.h" |
| #include "wtf/OwnPtr.h" |
| #include "wtf/PassOwnPtr.h" |
| |
| namespace WebCore { |
| |
| class MediaQueryEvaluator; |
| class PageRuleCollector; |
| class ShadowRoot; |
| class StyleSheetContents; |
| |
| // This class selects a RenderStyle for a given element based on a collection of stylesheets. |
| class ScopedStyleResolver { |
| WTF_MAKE_NONCOPYABLE(ScopedStyleResolver); WTF_MAKE_FAST_ALLOCATED; |
| public: |
| static PassOwnPtr<ScopedStyleResolver> create(ContainerNode& scopingNode) { return adoptPtr(new ScopedStyleResolver(scopingNode)); } |
| |
| static ContainerNode* scopingNodeFor(Document&, const CSSStyleSheet*); |
| |
| const ContainerNode& scopingNode() const { return m_scopingNode; } |
| const TreeScope& treeScope() const { return m_scopingNode.treeScope(); } |
| void setParent(ScopedStyleResolver* newParent) { m_parent = newParent; } |
| ScopedStyleResolver* parent() { return m_parent; } |
| |
| public: |
| bool checkRegionStyle(Element*); |
| const StyleRuleKeyframes* keyframeStylesForAnimation(const StringImpl* animationName); |
| void addKeyframeStyle(PassRefPtr<StyleRuleKeyframes>); |
| |
| void collectMatchingAuthorRules(ElementRuleCollector&, bool includeEmptyRules, bool applyAuthorStyles, CascadeScope, CascadeOrder = ignoreCascadeOrder); |
| void matchPageRules(PageRuleCollector&); |
| void addRulesFromSheet(StyleSheetContents*, const MediaQueryEvaluator&, StyleResolver*); |
| void collectFeaturesTo(RuleFeatureSet&); |
| void resetAuthorStyle(); |
| void collectViewportRulesTo(StyleResolver*) const; |
| |
| private: |
| explicit ScopedStyleResolver(ContainerNode& scopingNode) : m_scopingNode(scopingNode), m_parent(0) { } |
| |
| RuleSet* ensureAuthorStyle(); |
| |
| ContainerNode& m_scopingNode; |
| ScopedStyleResolver* m_parent; |
| |
| Vector<StyleSheetContents*> m_authorStyleSheets; |
| |
| typedef HashMap<const StringImpl*, RefPtr<StyleRuleKeyframes> > KeyframesRuleMap; |
| KeyframesRuleMap m_keyframesRuleMap; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ScopedStyleResolver_h |