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.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * IBM Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 2002
20 : * IBM Corporation. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * IBM Corporation
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
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37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #include "nsIAtom.h"
40 : #include "txIXPathContext.h"
41 : #include "txNodeSet.h"
42 : #include "txExpr.h"
43 : #include "txXPathTreeWalker.h"
44 :
45 0 : txNamedAttributeStep::txNamedAttributeStep(PRInt32 aNsID,
46 : nsIAtom* aPrefix,
47 : nsIAtom* aLocalName)
48 : : mNamespace(aNsID),
49 : mPrefix(aPrefix),
50 0 : mLocalName(aLocalName)
51 : {
52 0 : }
53 :
54 : nsresult
55 0 : txNamedAttributeStep::evaluate(txIEvalContext* aContext,
56 : txAExprResult** aResult)
57 : {
58 0 : *aResult = nsnull;
59 :
60 0 : nsRefPtr<txNodeSet> nodes;
61 0 : nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodes));
62 0 : NS_ENSURE_SUCCESS(rv, rv);
63 :
64 0 : txXPathTreeWalker walker(aContext->getContextNode());
65 0 : if (walker.moveToNamedAttribute(mLocalName, mNamespace)) {
66 0 : rv = nodes->append(walker.getCurrentPosition());
67 0 : NS_ENSURE_SUCCESS(rv, rv);
68 : }
69 0 : NS_ADDREF(*aResult = nodes);
70 :
71 0 : return NS_OK;
72 : }
73 :
74 0 : TX_IMPL_EXPR_STUBS_0(txNamedAttributeStep, NODESET_RESULT)
75 :
76 : bool
77 0 : txNamedAttributeStep::isSensitiveTo(ContextSensitivity aContext)
78 : {
79 0 : return !!(aContext & NODE_CONTEXT);
80 : }
81 :
82 : #ifdef TX_TO_STRING
83 : void
84 0 : txNamedAttributeStep::toString(nsAString& aDest)
85 : {
86 0 : aDest.Append(PRUnichar('@'));
87 0 : if (mPrefix) {
88 0 : nsAutoString prefix;
89 0 : mPrefix->ToString(prefix);
90 0 : aDest.Append(prefix);
91 0 : aDest.Append(PRUnichar(':'));
92 : }
93 0 : nsAutoString localName;
94 0 : mLocalName->ToString(localName);
95 0 : aDest.Append(localName);
96 0 : }
97 : #endif
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