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nsNodeInfo.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
00026  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
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00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nsNodeInfo_h___
00039 #define nsNodeInfo_h___
00040 
00041 #include "nsINodeInfo.h"
00042 #include "nsNodeInfoManager.h"
00043 #include "plhash.h"
00044 #include "nsIAtom.h"
00045 #include "nsCOMPtr.h"
00046 
00047 class nsNodeInfo : public nsINodeInfo
00048 {
00049 public:
00050   NS_DECL_ISUPPORTS
00051 
00052   // nsINodeInfo
00053   virtual void GetQualifiedName(nsAString &aQualifiedName) const;
00054   virtual void GetLocalName(nsAString& aLocalName) const;
00055   virtual nsresult GetNamespaceURI(nsAString& aNameSpaceURI) const;
00056   virtual PRBool Equals(const nsAString& aName) const;
00057   virtual PRBool Equals(const nsAString& aName,
00058                         const nsAString& aPrefix) const;
00059   virtual PRBool Equals(const nsAString& aName, PRInt32 aNamespaceID) const;
00060   virtual PRBool Equals(const nsAString& aName, const nsAString& aPrefix,
00061                         PRInt32 aNamespaceID) const;
00062   virtual PRBool NamespaceEquals(const nsAString& aNamespaceURI) const;
00063   virtual PRBool QualifiedNameEquals(const nsACString& aQualifiedName) const;
00064 
00065   nsIDocument* GetDocument() const
00066   {
00067     return mOwnerManager->GetDocument();
00068   }
00069 
00070   nsIPrincipal *GetDocumentPrincipal() const
00071   {
00072     return mOwnerManager->GetDocumentPrincipal();
00073   }
00074 
00075   // nsNodeInfo
00076   // Create objects with Create
00077 public:
00078   static nsNodeInfo *Create();
00079 private:
00080   nsNodeInfo();
00081 protected:
00082   virtual ~nsNodeInfo();
00083 
00084 public:
00085   /*
00086    * Note! Init() must be called exactly once on every nsNodeInfo before
00087    * the object is used, if Init() returns an error code the nsNodeInfo
00088    * should not be used.
00089    *
00090    * aName and aOwnerManager may not be null.
00091    */
00092   nsresult Init(nsIAtom *aName, nsIAtom *aPrefix, PRInt32 aNamespaceID,
00093                 nsNodeInfoManager *aOwnerManager);
00094 
00098   static void ClearCache();
00099 
00100 private:
00101   void Clear();
00102 
00103   static nsNodeInfo *sCachedNodeInfo;
00104 
00110    void LastRelease();
00111 };
00112 
00113 #endif /* nsNodeInfo_h___ */