root/Source/core/css/CSSPropertySourceData.h

INCLUDED FROM

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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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#ifndef CSSPropertySourceData_h
#define CSSPropertySourceData_h

#include "heap/Handle.h"
#include "wtf/Forward.h"
#include "wtf/RefCounted.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"

namespace WebCore {

class StyleRuleBase;

struct SourceRange {
    ALLOW_ONLY_INLINE_ALLOCATION();
public:
    SourceRange();
    SourceRange(unsigned start, unsigned end);
    unsigned length() const;

    void trace(Visitor*) { }

    unsigned start;
    unsigned end;
};

struct CSSPropertySourceData {
    ALLOW_ONLY_INLINE_ALLOCATION();
public:
    CSSPropertySourceData(const String& name, const String& value, bool important, bool disabled, bool parsedOk, const SourceRange& range);
    CSSPropertySourceData(const CSSPropertySourceData& other);
    CSSPropertySourceData();

    String toString() const;
    unsigned hash() const;

    void trace(Visitor* visitor) { visitor->trace(range); }

    String name;
    String value;
    bool important;
    bool disabled;
    bool parsedOk;
    SourceRange range;
};

struct CSSStyleSourceData : public RefCountedWillBeGarbageCollected<CSSStyleSourceData> {
    static PassRefPtrWillBeRawPtr<CSSStyleSourceData> create()
    {
        return adoptRefWillBeNoop(new CSSStyleSourceData());
    }

    void trace(Visitor* visitor) { visitor->trace(propertyData); }

    WillBeHeapVector<CSSPropertySourceData> propertyData;
};

struct CSSRuleSourceData;
typedef WillBeHeapVector<RefPtrWillBeMember<CSSRuleSourceData> > RuleSourceDataList;
typedef WillBeHeapVector<SourceRange> SelectorRangeList;

struct CSSRuleSourceData : public RefCountedWillBeGarbageCollected<CSSRuleSourceData> {
    enum Type {
        UNKNOWN_RULE,
        STYLE_RULE,
        CHARSET_RULE,
        IMPORT_RULE,
        MEDIA_RULE,
        FONT_FACE_RULE,
        PAGE_RULE,
        KEYFRAMES_RULE,
        VIEWPORT_RULE,
        SUPPORTS_RULE,
        FILTER_RULE
    };

    static PassRefPtrWillBeRawPtr<CSSRuleSourceData> create(Type type)
    {
        return adoptRefWillBeNoop(new CSSRuleSourceData(type));
    }

    static PassRefPtrWillBeRawPtr<CSSRuleSourceData> createUnknown()
    {
        return adoptRefWillBeNoop(new CSSRuleSourceData(UNKNOWN_RULE));
    }

    CSSRuleSourceData(Type type)
        : type(type)
    {
        if (type == STYLE_RULE || type == FONT_FACE_RULE || type == PAGE_RULE)
            styleSourceData = CSSStyleSourceData::create();
    }

    void trace(Visitor*);

    Type type;

    // Range of the selector list in the enclosing source.
    SourceRange ruleHeaderRange;

    // Range of the rule body (e.g. style text for style rules) in the enclosing source.
    SourceRange ruleBodyRange;

    // Only for CSSStyleRules.
    SelectorRangeList selectorRanges;

    // Only for CSSStyleRules, CSSFontFaceRules, and CSSPageRules.
    RefPtrWillBeMember<CSSStyleSourceData> styleSourceData;

    // Only for CSSMediaRules.
    RuleSourceDataList childRules;
};

} // namespace WebCore

namespace WTF {

template <> struct VectorTraits<WebCore::SourceRange> : VectorTraitsBase<WebCore::SourceRange> {
    static const bool canInitializeWithMemset = true;
    static const bool canMoveWithMemcpy = true;
};

template <> struct VectorTraits<WebCore::CSSPropertySourceData> : VectorTraitsBase<WebCore::CSSPropertySourceData> {
    static const bool canInitializeWithMemset = true;
    static const bool canMoveWithMemcpy = true;
};

}

#endif // CSSPropertySourceData_h