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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code.
 *
 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef nsDOMCSSAttributeDeclaration_h___
#define nsDOMCSSAttributeDeclaration_h___

#include "nsIDOMCSSStyleDeclaration.h"
#include "nsDOMCSSDeclaration.h"

#include "nsString.h"

class nsIContent;
class nsIStyledContent;
class nsICSSLoader;
class nsICSSParser;

class nsDOMCSSAttributeDeclaration : public nsDOMCSSDeclaration
{
public:
  nsDOMCSSAttributeDeclaration(nsIStyledContent *aContent);
  ~nsDOMCSSAttributeDeclaration();

  // impl AddRef/Release; QI is implemented by our parent class
  NS_IMETHOD_(nsrefcnt) AddRef(void);
  NS_IMETHOD_(nsrefcnt) Release(void);

  virtual void DropReference();
  // If GetCSSDeclaration returns non-null, then the decl it returns
  // is owned by our current style rule.
  virtual nsresult GetCSSDeclaration(nsCSSDeclaration **aDecl,
                                     PRBool aAllocate);
  virtual nsresult GetCSSParsingEnvironment(nsIURI** aSheetURI,
                                            nsIURI** aBaseURI,
                                            nsICSSLoader** aCSSLoader,
                                            nsICSSParser** aCSSParser);
  NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent);

protected:
  virtual nsresult DeclarationChanged();
  
  nsAutoRefCnt mRefCnt;
  NS_DECL_OWNINGTHREAD

  nsIStyledContent *mContent;
};

#endif /* nsDOMCSSAttributeDeclaration_h___ */