1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is TransforMiiX XSLT processor code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Axel Hecht.
19 : * Portions created by the Initial Developer are Copyright (C) 2001
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Axel Hecht <axel@pike.org>
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifndef __TX_XPATH_SET_CONTEXT
40 : #define __TX_XPATH_SET_CONTEXT
41 :
42 : #include "txIXPathContext.h"
43 : #include "txNodeSet.h"
44 : #include "nsAutoPtr.h"
45 :
46 : class txNodeSetContext : public txIEvalContext
47 0 : {
48 : public:
49 0 : txNodeSetContext(txNodeSet* aContextNodeSet, txIMatchContext* aContext)
50 0 : : mContextSet(aContextNodeSet), mPosition(0), mInner(aContext)
51 : {
52 0 : }
53 :
54 : // Iteration over the given NodeSet
55 0 : bool hasNext()
56 : {
57 0 : return mPosition < size();
58 : }
59 0 : void next()
60 : {
61 0 : NS_ASSERTION(mPosition < size(), "Out of bounds.");
62 0 : mPosition++;
63 0 : }
64 0 : void setPosition(PRUint32 aPosition)
65 : {
66 0 : NS_ASSERTION(aPosition > 0 &&
67 : aPosition <= size(), "Out of bounds.");
68 0 : mPosition = aPosition;
69 0 : }
70 :
71 : TX_DECL_EVAL_CONTEXT;
72 :
73 : protected:
74 : nsRefPtr<txNodeSet> mContextSet;
75 : PRUint32 mPosition;
76 : txIMatchContext* mInner;
77 : };
78 :
79 : #endif // __TX_XPATH_SET_CONTEXT
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