/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
interface nsIURI;
interface nsIAccessible;
/**
* A cross - platform interface that supports hyperlink - specific properties and
* methods . Anchors , image maps , xul : labels with class = " text - link " implement this interface .
*/
[scriptable, builtinclass, uuid(
883643 d4-
93 a5-
4 f32-
922 c-
6 f06e01363c1)]
interface nsIAccessibleHyperLink : nsISupports
{
/**
* Returns the offset of the link within the parent accessible .
*/
readonly attribute
long startIndex;
/**
* Returns the end index of the link within the parent accessible .
*
* @ note The link itself is represented by one embedded character within the
* parent text , so the endIndex should be startIndex + 1 .
*/
readonly attribute
long endIndex;
/**
* Determines whether the link is valid ( e . g . points to a valid URL ) .
*
* @ note XXX Currently only used with ARIA links , and the author has to
* specify that the link is invalid via the aria - invalid = " true " attribute .
* In all other cases , TRUE is returned .
*/
readonly attribute boolean valid;
/**
* The numbber of anchors within this Hyperlink . Is normally 1 for anchors .
* This anchor is , for example , the visible output of the html : a tag .
* With an Image Map , reflects the actual areas within the map .
*/
readonly attribute
long anchorCount;
/**
* Returns the URI at the given index .
*
* @ note ARIA hyperlinks do not have an URI to point to , since clicks are
* processed via JavaScript . Therefore this property does not work on ARIA
* links .
*
* @ param index The 0 - based index of the URI to be returned .
*
* @ return the nsIURI object containing the specifications for the URI .
*/
nsIURI getURI (in
long index);
/**
* Returns a reference to the object at the given index .
*
* @ param index The 0 - based index whose object is to be returned .
*
* @ return the nsIAccessible object at the desired index .
*/
nsIAccessible getAnchor (in
long index);
};
/*
Assumptions :
The object associated with object or anchor index
is an nsIAccessible .
A URI can be represented by the nsIURI interface
( or nsIURL interface ) .
Note that an object which supports nsIAccessibleHyperlink
does * not * generally implement nsIAccessible , unlike the
case of the other nsiAccessible * interfaces in this directory .
Aaron : would the nsISupports return from
getObject be queryable for nsIURI and nsIURL directly ?
*/
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