| /* |
| * (C) 1999-2003 Lars Knoll (knoll@kde.org) |
| * (C) 2002-2003 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2002, 2006, 2007, 2012 Apple Inc. All rights reserved. |
| * Copyright (C) 2011 Andreas Kling (kling@webkit.org) |
| * |
| * 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 CSSRule_h |
| #define CSSRule_h |
| |
| #include "bindings/core/v8/ScriptWrappable.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace blink { |
| |
| class CSSParserContext; |
| class CSSRuleList; |
| class CSSStyleSheet; |
| class StyleRuleBase; |
| |
| class CORE_EXPORT CSSRule : public GarbageCollectedFinalized<CSSRule>, public ScriptWrappable { |
| DEFINE_WRAPPERTYPEINFO(); |
| public: |
| virtual ~CSSRule() { } |
| |
| enum Type { |
| kStyleRule = 1, |
| kCharsetRule = 2, |
| kImportRule = 3, |
| kMediaRule = 4, |
| kFontFaceRule = 5, |
| kPageRule = 6, |
| kKeyframesRule = 7, |
| kWebkitKeyframesRule = kKeyframesRule, |
| kKeyframeRule = 8, |
| kWebkitKeyframeRule = kKeyframeRule, |
| kNamespaceRule = 10, |
| kSupportsRule = 12, |
| kViewportRule = 15, |
| }; |
| |
| virtual Type type() const = 0; |
| virtual String cssText() const = 0; |
| virtual void reattach(StyleRuleBase*) = 0; |
| |
| virtual CSSRuleList* cssRules() const { return 0; } |
| |
| void setParentStyleSheet(CSSStyleSheet* styleSheet) |
| { |
| m_parentIsRule = false; |
| m_parentStyleSheet = styleSheet; |
| } |
| |
| void setParentRule(CSSRule* rule) |
| { |
| m_parentIsRule = true; |
| m_parentRule = rule; |
| } |
| |
| DECLARE_VIRTUAL_TRACE(); |
| |
| CSSStyleSheet* parentStyleSheet() const |
| { |
| if (m_parentIsRule) |
| return m_parentRule ? m_parentRule->parentStyleSheet() : nullptr; |
| return m_parentStyleSheet; |
| } |
| |
| CSSRule* parentRule() const { return m_parentIsRule ? m_parentRule : nullptr; } |
| |
| // The CSSOM spec states that "setting the cssText attribute must do nothing." |
| void setCSSText(const String&) { } |
| |
| protected: |
| CSSRule(CSSStyleSheet* parent) |
| : m_hasCachedSelectorText(false) |
| , m_parentIsRule(false) |
| , m_parentStyleSheet(parent) |
| { |
| } |
| |
| bool hasCachedSelectorText() const { return m_hasCachedSelectorText; } |
| void setHasCachedSelectorText(bool hasCachedSelectorText) const { m_hasCachedSelectorText = hasCachedSelectorText; } |
| |
| const CSSParserContext& parserContext() const; |
| |
| private: |
| mutable unsigned char m_hasCachedSelectorText : 1; |
| unsigned char m_parentIsRule : 1; |
| |
| // These should be Members, but no Members in unions. |
| union { |
| CSSRule* m_parentRule; |
| CSSStyleSheet* m_parentStyleSheet; |
| }; |
| }; |
| |
| #define DEFINE_CSS_RULE_TYPE_CASTS(ToType, TYPE_NAME) \ |
| DEFINE_TYPE_CASTS(ToType, CSSRule, rule, rule->type() == CSSRule::TYPE_NAME, rule.type() == CSSRule::TYPE_NAME) |
| |
| } // namespace blink |
| |
| #endif // CSSRule_h |