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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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(883643d4-93a5-4f32-922c-6f06e01363c1)]
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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