1/**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements.  See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership.  The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License.  You may obtain a copy of the License at
10 *
11 *   http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied.  See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24#ifndef __com_sun_star_accessibility_XAccessibleHyperlink_idl__
25#define __com_sun_star_accessibility_XAccessibleHyperlink_idl__
26
27#ifndef __com_sun_star_accessibility_XAccessibleAction_idl__
28#include <com/sun/star/accessibility/XAccessibleAction.idl>
29#endif
30#ifndef __com_sun_star_lang_IndexOutOfBoundsException_idl__
31#include <com/sun/star/lang/IndexOutOfBoundsException.idl>
32#endif
33
34module com { module sun { module star { module accessibility {
35
36/** Implement this interface to represent a hyperlink or a group of
37    hyperlinks.
38
39    <p>Single hyperlinks correspond to simple &lt;a href&gt; tags.  Groups
40    of hyperlinks are contained in client side image maps.  Linked objects
41    and anchors are implementation dependent.  This interface inherits the
42    <type>XAccessibleAction</type> interface.  Especially that interface's
43    <member>XAccessibleAction::getActionCount</member> method is needed to
44    obtain a maximum value for the indices passed to the
45    <member>XAccessibleHyperlink::getAccessibleActionAnchor</member> and
46    <member>XAccessibleHyperlink::getAccessibleActionObject</member>
47    methods.</p>
48
49    <p>Furhtermore, the object that implements this interface has to be
50    connected implicitly or explicitly with an object that implements the
51    the <type>XAccessibleText</type> interface.  The
52    <member>XAccessibleHyperlink::getStartIndex</member> and
53    <member>XAccessibleHyperlink::getEndIndex</member> methods return
54    indices with respect to the text exposed by that interface.</p>
55
56    @since OpenOffice 1.1.2
57*/
58published interface XAccessibleHyperlink :
59    ::com::sun::star::accessibility::XAccessibleAction
60{
61    /** Returns an object that represents the link anchor, as appropriate
62        for that link.
63
64        <p>For an HTML link for example, this method would return the string
65        enclosed by the &lt&a href&gt; tag.</p>
66
67        @param nIndex
68            This index identifies the anchor when, as in the case of an
69            image map, there is more than one link represented by this
70            object.  The valid maximal index can be determinded by calling
71            the <member>XAccessibleAction::getActionCount</member> method.
72
73        @return
74            If the index is not valid then an exception is thrown.
75            Otherwise it returns an implementation dependent value.
76    */
77    any getAccessibleActionAnchor ([in] long nIndex)
78        raises (::com::sun::star::lang::IndexOutOfBoundsException);
79
80    /** Returns an object that represents the link anchor, as appropriate
81        for that link.
82
83        <p>For an HTML link for example, this method would return the URL of
84        the &lt&a href&gt; tag.</p>
85
86        @param nIndex
87            This index identifies the action object when, as in the case of
88            an image map, there is more than one link represented by this
89            object.  The valid maximal index can be determinded by calling
90            the <member>XAccessibleAction::getActionCount</member> method.
91
92        @return
93            If the index is not valid then an exception is thrown.
94            Otherwise it returns an implementation dependent value.
95    */
96    any getAccessibleActionObject ([in] long nIndex)
97        raises (::com::sun::star::lang::IndexOutOfBoundsException);
98
99    /** Returns the index at which the textual representation of the
100        hyperlink (group) starts.
101
102        <p>The returned value relates to the <type>XAccessibleText</type>
103        interface that ownes this hyperlink.</p>
104
105        @return
106            The index relates to the text exposed by the
107            <type>XAccessibleHypertext</type> interface.
108    */
109    long getStartIndex ();
110
111    /** Returns the index at which the textual rerpesentation of the
112        hyperlink (group) ends.
113
114        <p>The returned value relates to the <type>XAccessibleText</type>
115        interface that ownes this hyperlink.</p>
116
117        @return
118            The index relates to the text exposed by the
119            <type>XAccessibleText</type> interface.
120    */
121    long getEndIndex ();
122
123    /** Returns whether the document referenced by this links is
124        still valid.
125
126        <p>This is a volatile state that may change without further warning
127        like e.g. sending an appropriate event.</p>
128
129        @return
130            Returns <TRUE/> if the referenced document is still valid and
131            <FALSE/> otherwise.
132    */
133    boolean isValid ();
134};
135
136}; }; }; };
137
138#endif
139