1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Mozilla Foundation.
19 : * Portions created by the Initial Developer are Copyright (C) 2007
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Alexander Surkov <surkov.alexander@gmail.com> (original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either of the GNU General Public License Version 2 or later (the "GPL"),
27 : * or 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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30 : * under the terms of either the GPL or the LGPL, and not to allow others to
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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 : #include "nsAccessibleRelation.h"
40 :
41 : #include "Relation.h"
42 : #include "nsAccessible.h"
43 :
44 : #include "nsArrayUtils.h"
45 : #include "nsComponentManagerUtils.h"
46 :
47 0 : nsAccessibleRelation::nsAccessibleRelation(PRUint32 aType,
48 : Relation* aRel) :
49 0 : mType(aType)
50 : {
51 0 : mTargets = do_CreateInstance(NS_ARRAY_CONTRACTID);
52 0 : nsIAccessible* targetAcc = nsnull;
53 0 : while ((targetAcc = aRel->Next()))
54 0 : mTargets->AppendElement(targetAcc, false);
55 0 : }
56 :
57 : // nsISupports
58 0 : NS_IMPL_ISUPPORTS1(nsAccessibleRelation, nsIAccessibleRelation)
59 :
60 : // nsIAccessibleRelation
61 : NS_IMETHODIMP
62 0 : nsAccessibleRelation::GetRelationType(PRUint32 *aType)
63 : {
64 0 : NS_ENSURE_ARG_POINTER(aType);
65 0 : *aType = mType;
66 0 : return NS_OK;
67 : }
68 :
69 : NS_IMETHODIMP
70 0 : nsAccessibleRelation::GetTargetsCount(PRUint32 *aCount)
71 : {
72 0 : NS_ENSURE_ARG_POINTER(aCount);
73 0 : *aCount = 0;
74 0 : return mTargets->GetLength(aCount);
75 : }
76 :
77 : NS_IMETHODIMP
78 0 : nsAccessibleRelation::GetTarget(PRUint32 aIndex, nsIAccessible **aTarget)
79 : {
80 0 : NS_ENSURE_ARG_POINTER(aTarget);
81 0 : nsresult rv = NS_OK;
82 0 : nsCOMPtr<nsIAccessible> target = do_QueryElementAt(mTargets, aIndex, &rv);
83 0 : target.forget(aTarget);
84 0 : return rv;
85 : }
86 :
87 : NS_IMETHODIMP
88 0 : nsAccessibleRelation::GetTargets(nsIArray **aTargets)
89 : {
90 0 : NS_ENSURE_ARG_POINTER(aTargets);
91 0 : NS_ADDREF(*aTargets = mTargets);
92 0 : return NS_OK;
93 : }
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