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nsMappedAttributeElement.h

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/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The Original Code is Mozilla Communicator client code.
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 *   Daniel Kraft <d@domob.eu>
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/**
 * nsMappedAttributeElement is the base for elements supporting style mapped
 * attributes via nsMappedAttributes (HTML and MathML).
 */

#ifndef NS_MAPPEDATTRIBUTEELEMENT_H_
#define NS_MAPPEDATTRIBUTEELEMENT_H_

#include "nsStyledElement.h"

class nsMappedAttributes;
struct nsRuleData;

typedef void (*nsMapRuleToAttributesFunc)(const nsMappedAttributes* aAttributes, 
                                          nsRuleData* aData);

typedef nsStyledElement nsMappedAttributeElementBase;

class nsMappedAttributeElement : public nsMappedAttributeElementBase
{

protected:

  nsMappedAttributeElement(nsINodeInfo *aNodeInfo)
    : nsMappedAttributeElementBase(aNodeInfo)
  {}

public:
  virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
                              nsIContent* aBindingParent,
                              PRBool aCompileEventHandlers);

  virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;

  static void MapNoAttributesInto(const nsMappedAttributes* aAttributes, 
                                  nsRuleData* aRuleData);

  NS_IMETHOD WalkContentStyleRules(nsRuleWalker* aRuleWalker);
  virtual PRBool SetMappedAttribute(nsIDocument* aDocument,
                                    nsIAtom* aName,
                                    nsAttrValue& aValue,
                                    nsresult* aRetval);
};

#endif // NS_MAPPEDATTRIBUTEELEMENT_H_

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