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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 * Alternatively, the contents of this file may be used under the terms of
 * 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
 * of those above. If you wish to allow use of your version of this file only
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 * decision by deleting the provisions above and replace them with the notice
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 * the terms of any one of the MPL, the GPL or the LGPL.
 * ***** END LICENSE BLOCK ***** */

#ifndef nsNodeInfoManager_h___
#define nsNodeInfoManager_h___

#include "nsCOMArray.h"
#include "nsCOMPtr.h"
#include "plhash.h"

class nsIAtom;
class nsIDocument;
class nsINodeInfo;
class nsNodeInfo;
class nsIPrincipal;
class nsIURI;

class nsNodeInfoManager

  nsrefcnt AddRef(void);
  nsrefcnt Release(void);

   * Initialize the nodeinfo manager with a document.
  nsresult Init(nsIDocument *aDocument);

   * Release the reference to the document, this will be called when
   * the document is going away.
  void DropDocumentReference();

   * Methods for creating nodeinfo's from atoms and/or strings.
  nsresult GetNodeInfo(nsIAtom *aName, nsIAtom *aPrefix,
                       PRInt32 aNamespaceID, nsINodeInfo** aNodeInfo);
  nsresult GetNodeInfo(const nsAString& aName, nsIAtom *aPrefix,
                       PRInt32 aNamespaceID, nsINodeInfo** aNodeInfo);
  nsresult GetNodeInfo(const nsAString& aQualifiedName,
                       const nsAString& aNamespaceURI,
                       nsINodeInfo** aNodeInfo);

   * Retrieve a pointer to the document that owns this node info
   * manager.
  nsIDocument* GetDocument() const
    return mDocument;

   * Gets the principal of the document associated with this.
  nsIPrincipal *GetDocumentPrincipal();

   * Sets the principal of the nodeinfo manager. This should only be called
   * when this nodeinfo manager isn't connected to an nsIDocument.
  void SetDocumentPrincipal(nsIPrincipal *aPrincipal);

   * Populate the given nsCOMArray with all of the nsINodeInfos
   * managed by this manager.
  nsresult GetNodeInfos(nsCOMArray<nsINodeInfo> *aArray);

  void RemoveNodeInfo(nsNodeInfo *aNodeInfo);

  static PRIntn PR_CALLBACK NodeInfoInnerKeyCompare(const void *key1,
                                                    const void *key2);
  static PLHashNumber PR_CALLBACK GetNodeInfoInnerHashValue(const void *key);

  nsAutoRefCnt mRefCnt;

  PLHashTable *mNodeInfoHash;
  nsIDocument *mDocument; // WEAK
  nsCOMPtr<nsIPrincipal> mPrincipal;

  static PRUint32 gNodeManagerCount;

#endif /* nsNodeInfoManager_h___ */

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