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nsDOMTokenList.h

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * 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.org code.
 *
 * The Initial Developer of the Original Code is
 * Sylvain Pasche <sylvain.pasche@gmail.com>
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/*
 * Implementation of nsIDOMDOMTokenList specified by HTML5.
 */

#ifndef nsDOMTokenList_h___
#define nsDOMTokenList_h___

#include "nsGenericElement.h"
#include "nsIDOMDOMTokenList.h"

class nsAttrValue;

class nsDOMTokenList : public nsIDOMDOMTokenList
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMDOMTOKENLIST

  nsDOMTokenList(nsGenericElement* aElement, nsIAtom* aAttrAtom);

  void DropReference();

private:
  ~nsDOMTokenList();

  const nsAttrValue* GetParsedAttr() {
    if (!mElement) {
      return nsnull;
    }
    return mElement->GetParsedAttr(mAttrAtom);
  }

  nsresult CheckToken(const nsAString& aStr);
  PRBool ContainsInternal(const nsAttrValue* aAttr, const nsAString& aToken);
  void AddInternal(const nsAttrValue* aAttr, const nsAString& aToken);
  void RemoveInternal(const nsAttrValue* aAttr, const nsAString& aToken);

  nsGenericElement* mElement;
  nsCOMPtr<nsIAtom> mAttrAtom;
};

#endif // nsDOMTokenList_h___

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