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/* ***** 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
 * the Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   William Chen <wchen@mozilla.com> (Original Author)
 *
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 * 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
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 * ***** END LICENSE BLOCK ***** */

#ifndef nsDOMStringMap_h
#define nsDOMStringMap_h

#include "nsIDOMDOMStringMap.h"

#include "nsCycleCollectionParticipant.h"
#include "nsAutoPtr.h"
#include "nsTArray.h"
#include "nsString.h"

class nsGenericHTMLElement;

class nsDOMStringMap : public nsIDOMDOMStringMap
{
public:
  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_NSIDOMDOMSTRINGMAP
  NS_DECL_CYCLE_COLLECTION_CLASS(nsDOMStringMap)

  nsDOMStringMap(nsGenericHTMLElement* aElement);

  // GetDataPropList is not defined in IDL due to difficulty
  // of returning arrays in IDL. Instead, we cast to this
  // class if this method needs to be called.
  nsresult GetDataPropList(nsTArray<nsString>& aResult);

  nsresult RemovePropInternal(nsIAtom* aAttr);
  nsGenericHTMLElement* GetElement();

private:
  virtual ~nsDOMStringMap();

protected:
  nsRefPtr<nsGenericHTMLElement> mElement;
  // Flag to guard against infinite recursion.
  PRBool mRemovingProp;
  PRBool DataPropToAttr(const nsAString& aProp, nsAString& aResult);
  PRBool AttrToDataProp(const nsAString& aAttr, nsAString& aResult);
};

#endif
