Back to index

lightning-sunbird  0.9+nobinonly
nsXPathEvaluator.h
Go to the documentation of this file.
00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 TransforMiiX XSLT processor 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) 2001
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Peter Van der Beken <peterv@propagandism.org>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef nsXPathEvaluator_h__
00040 #define nsXPathEvaluator_h__
00041 
00042 #include "nsIDOMXPathEvaluator.h"
00043 #include "txIXPathContext.h"
00044 #include "nsIXPathEvaluatorInternal.h"
00045 #include "nsIWeakReference.h"
00046 #include "nsAutoPtr.h"
00047 #include "txResultRecycler.h"
00048 
00049 class nsIDOMDocument;
00050 
00054 class nsXPathEvaluator : public nsIDOMXPathEvaluator,
00055                          public nsIXPathEvaluatorInternal
00056 {
00057 public:
00058     nsXPathEvaluator();
00059     virtual ~nsXPathEvaluator();
00060 
00061     // nsISupports interface
00062     NS_DECL_ISUPPORTS
00063 
00064     // nsIDOMXPathEvaluator interface
00065     NS_DECL_NSIDOMXPATHEVALUATOR
00066 
00067     // nsIXPathEvaluatorInternal interface
00068     NS_IMETHOD SetDocument(nsIDOMDocument* aDocument);
00069 
00070 private:
00071     // txIParseContext implementation
00072     class ParseContextImpl : public txIParseContext
00073     {
00074     public:
00075         ParseContextImpl(nsIDOMXPathNSResolver* aResolver,
00076                          PRBool aIsCaseSensitive)
00077             : mResolver(aResolver), mLastError(NS_OK),
00078               mIsCaseSensitive(aIsCaseSensitive)
00079         {
00080         }
00081 
00082         ~ParseContextImpl()
00083         {
00084         }
00085 
00086         nsresult getError()
00087         {
00088             return mLastError;
00089         }
00090 
00091         nsresult resolveNamespacePrefix(nsIAtom* aPrefix, PRInt32& aID);
00092         nsresult resolveFunctionCall(nsIAtom* aName, PRInt32 aID,
00093                                      FunctionCall*& aFunction);
00094         PRBool caseInsensitiveNameTests();
00095         void SetErrorOffset(PRUint32 aOffset);
00096 
00097     private:
00098         nsIDOMXPathNSResolver* mResolver;
00099         nsresult mLastError;
00100         PRBool mIsCaseSensitive;
00101     };
00102 
00103     nsWeakPtr mDocument;
00104     nsRefPtr<txResultRecycler> mRecycler;
00105 };
00106 
00107 /* d0a75e02-b5e7-11d5-a7f2-df109fb8a1fc */
00108 #define TRANSFORMIIX_XPATH_EVALUATOR_CID   \
00109 { 0xd0a75e02, 0xb5e7, 0x11d5, { 0xa7, 0xf2, 0xdf, 0x10, 0x9f, 0xb8, 0xa1, 0xfc } }
00110 
00111 #endif