| /* |
| * (C) 1999-2003 Lars Knoll (knoll@kde.org) |
| * (C) 2002-2003 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2002, 2006, 2008, 2012, 2013 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef StyleRule_h |
| #define StyleRule_h |
| |
| #include "core/CoreExport.h" |
| #include "core/css/CSSSelectorList.h" |
| #include "core/css/MediaList.h" |
| #include "core/css/StylePropertySet.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace blink { |
| |
| class CSSRule; |
| class CSSStyleSheet; |
| |
| class CORE_EXPORT StyleRuleBase |
| : public GarbageCollectedFinalized<StyleRuleBase> { |
| public: |
| enum RuleType { |
| Charset, |
| Style, |
| Import, |
| Media, |
| FontFace, |
| Page, |
| Keyframes, |
| Keyframe, |
| Namespace, |
| Supports, |
| Viewport, |
| }; |
| |
| RuleType type() const { return static_cast<RuleType>(m_type); } |
| |
| bool isCharsetRule() const { return type() == Charset; } |
| bool isFontFaceRule() const { return type() == FontFace; } |
| bool isKeyframesRule() const { return type() == Keyframes; } |
| bool isKeyframeRule() const { return type() == Keyframe; } |
| bool isNamespaceRule() const { return type() == Namespace; } |
| bool isMediaRule() const { return type() == Media; } |
| bool isPageRule() const { return type() == Page; } |
| bool isStyleRule() const { return type() == Style; } |
| bool isSupportsRule() const { return type() == Supports; } |
| bool isViewportRule() const { return type() == Viewport; } |
| bool isImportRule() const { return type() == Import; } |
| |
| StyleRuleBase* copy() const; |
| |
| // FIXME: There shouldn't be any need for the null parent version. |
| CSSRule* createCSSOMWrapper(CSSStyleSheet* parentSheet = 0) const; |
| CSSRule* createCSSOMWrapper(CSSRule* parentRule) const; |
| |
| DECLARE_TRACE(); |
| DEFINE_INLINE_TRACE_AFTER_DISPATCH() {} |
| void finalizeGarbageCollectedObject(); |
| |
| // ~StyleRuleBase should be public, because non-public ~StyleRuleBase |
| // causes C2248 error : 'blink::StyleRuleBase::~StyleRuleBase' : cannot |
| // access protected member declared in class 'blink::StyleRuleBase' when |
| // compiling 'source\wtf\refcounted.h' by using msvc. |
| ~StyleRuleBase() {} |
| |
| protected: |
| StyleRuleBase(RuleType type) : m_type(type) {} |
| StyleRuleBase(const StyleRuleBase& o) : m_type(o.m_type) {} |
| |
| private: |
| CSSRule* createCSSOMWrapper(CSSStyleSheet* parentSheet, |
| CSSRule* parentRule) const; |
| |
| unsigned m_type : 5; |
| }; |
| |
| class CORE_EXPORT StyleRule : public StyleRuleBase { |
| public: |
| // Adopts the selector list |
| static StyleRule* create(CSSSelectorList selectorList, |
| StylePropertySet* properties) { |
| return new StyleRule(std::move(selectorList), properties); |
| } |
| |
| ~StyleRule(); |
| |
| const CSSSelectorList& selectorList() const { return m_selectorList; } |
| const StylePropertySet& properties() const { return *m_properties; } |
| MutableStylePropertySet& mutableProperties(); |
| |
| void wrapperAdoptSelectorList(CSSSelectorList selectors) { |
| m_selectorList = std::move(selectors); |
| } |
| |
| StyleRule* copy() const { return new StyleRule(*this); } |
| |
| static unsigned averageSizeInBytes(); |
| |
| DECLARE_TRACE_AFTER_DISPATCH(); |
| |
| private: |
| StyleRule(CSSSelectorList, StylePropertySet*); |
| StyleRule(const StyleRule&); |
| |
| Member<StylePropertySet> m_properties; // Cannot be null. |
| CSSSelectorList m_selectorList; |
| }; |
| |
| class StyleRuleFontFace : public StyleRuleBase { |
| public: |
| static StyleRuleFontFace* create(StylePropertySet* properties) { |
| return new StyleRuleFontFace(properties); |
| } |
| |
| ~StyleRuleFontFace(); |
| |
| const StylePropertySet& properties() const { return *m_properties; } |
| MutableStylePropertySet& mutableProperties(); |
| |
| StyleRuleFontFace* copy() const { return new StyleRuleFontFace(*this); } |
| |
| DECLARE_TRACE_AFTER_DISPATCH(); |
| |
| private: |
| StyleRuleFontFace(StylePropertySet*); |
| StyleRuleFontFace(const StyleRuleFontFace&); |
| |
| Member<StylePropertySet> m_properties; // Cannot be null. |
| }; |
| |
| class StyleRulePage : public StyleRuleBase { |
| public: |
| // Adopts the selector list |
| static StyleRulePage* create(CSSSelectorList selectorList, |
| StylePropertySet* properties) { |
| return new StyleRulePage(std::move(selectorList), properties); |
| } |
| |
| ~StyleRulePage(); |
| |
| const CSSSelector* selector() const { return m_selectorList.first(); } |
| const StylePropertySet& properties() const { return *m_properties; } |
| MutableStylePropertySet& mutableProperties(); |
| |
| void wrapperAdoptSelectorList(CSSSelectorList selectors) { |
| m_selectorList = std::move(selectors); |
| } |
| |
| StyleRulePage* copy() const { return new StyleRulePage(*this); } |
| |
| DECLARE_TRACE_AFTER_DISPATCH(); |
| |
| private: |
| StyleRulePage(CSSSelectorList, StylePropertySet*); |
| StyleRulePage(const StyleRulePage&); |
| |
| Member<StylePropertySet> m_properties; // Cannot be null. |
| CSSSelectorList m_selectorList; |
| }; |
| |
| class CORE_EXPORT StyleRuleGroup : public StyleRuleBase { |
| public: |
| const HeapVector<Member<StyleRuleBase>>& childRules() const { |
| return m_childRules; |
| } |
| |
| void wrapperInsertRule(unsigned, StyleRuleBase*); |
| void wrapperRemoveRule(unsigned); |
| |
| DECLARE_TRACE_AFTER_DISPATCH(); |
| |
| protected: |
| StyleRuleGroup(RuleType, HeapVector<Member<StyleRuleBase>>& adoptRule); |
| StyleRuleGroup(const StyleRuleGroup&); |
| |
| private: |
| HeapVector<Member<StyleRuleBase>> m_childRules; |
| }; |
| |
| class CORE_EXPORT StyleRuleMedia : public StyleRuleGroup { |
| public: |
| static StyleRuleMedia* create(MediaQuerySet* media, |
| HeapVector<Member<StyleRuleBase>>& adoptRules) { |
| return new StyleRuleMedia(media, adoptRules); |
| } |
| |
| MediaQuerySet* mediaQueries() const { return m_mediaQueries.get(); } |
| |
| StyleRuleMedia* copy() const { return new StyleRuleMedia(*this); } |
| |
| DECLARE_TRACE_AFTER_DISPATCH(); |
| |
| private: |
| StyleRuleMedia(MediaQuerySet*, HeapVector<Member<StyleRuleBase>>& adoptRules); |
| StyleRuleMedia(const StyleRuleMedia&); |
| |
| Member<MediaQuerySet> m_mediaQueries; |
| }; |
| |
| class StyleRuleSupports : public StyleRuleGroup { |
| public: |
| static StyleRuleSupports* create( |
| const String& conditionText, |
| bool conditionIsSupported, |
| HeapVector<Member<StyleRuleBase>>& adoptRules) { |
| return new StyleRuleSupports(conditionText, conditionIsSupported, |
| adoptRules); |
| } |
| |
| String conditionText() const { return m_conditionText; } |
| bool conditionIsSupported() const { return m_conditionIsSupported; } |
| StyleRuleSupports* copy() const { return new StyleRuleSupports(*this); } |
| |
| DEFINE_INLINE_TRACE_AFTER_DISPATCH() { |
| StyleRuleGroup::traceAfterDispatch(visitor); |
| } |
| |
| private: |
| StyleRuleSupports(const String& conditionText, |
| bool conditionIsSupported, |
| HeapVector<Member<StyleRuleBase>>& adoptRules); |
| StyleRuleSupports(const StyleRuleSupports&); |
| |
| String m_conditionText; |
| bool m_conditionIsSupported; |
| }; |
| |
| class StyleRuleViewport : public StyleRuleBase { |
| public: |
| static StyleRuleViewport* create(StylePropertySet* properties) { |
| return new StyleRuleViewport(properties); |
| } |
| |
| ~StyleRuleViewport(); |
| |
| const StylePropertySet& properties() const { return *m_properties; } |
| MutableStylePropertySet& mutableProperties(); |
| |
| StyleRuleViewport* copy() const { return new StyleRuleViewport(*this); } |
| |
| DECLARE_TRACE_AFTER_DISPATCH(); |
| |
| private: |
| StyleRuleViewport(StylePropertySet*); |
| StyleRuleViewport(const StyleRuleViewport&); |
| |
| Member<StylePropertySet> m_properties; // Cannot be null |
| }; |
| |
| // This should only be used within the CSS Parser |
| class StyleRuleCharset : public StyleRuleBase { |
| public: |
| static StyleRuleCharset* create() { return new StyleRuleCharset(); } |
| DEFINE_INLINE_TRACE_AFTER_DISPATCH() { |
| StyleRuleBase::traceAfterDispatch(visitor); |
| } |
| |
| private: |
| StyleRuleCharset() : StyleRuleBase(Charset) {} |
| }; |
| |
| #define DEFINE_STYLE_RULE_TYPE_CASTS(Type) \ |
| DEFINE_TYPE_CASTS(StyleRule##Type, StyleRuleBase, rule, \ |
| rule->is##Type##Rule(), rule.is##Type##Rule()) |
| |
| DEFINE_TYPE_CASTS(StyleRule, |
| StyleRuleBase, |
| rule, |
| rule->isStyleRule(), |
| rule.isStyleRule()); |
| DEFINE_STYLE_RULE_TYPE_CASTS(FontFace); |
| DEFINE_STYLE_RULE_TYPE_CASTS(Page); |
| DEFINE_STYLE_RULE_TYPE_CASTS(Media); |
| DEFINE_STYLE_RULE_TYPE_CASTS(Supports); |
| DEFINE_STYLE_RULE_TYPE_CASTS(Viewport); |
| DEFINE_STYLE_RULE_TYPE_CASTS(Charset); |
| |
| } // namespace blink |
| |
| #endif // StyleRule_h |