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