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mozAccessibleProtocol.h
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mozAccessibleProtocol.h
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/* -*- Mode: Objective-C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Original Author: Håkan Waara <hwaara@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#import <Cocoa/Cocoa.h>
#import "mozView.h"
/* This protocol's primary use is so widget/src/cocoa can talk back to us
properly.
ChildView owns the topmost mozRootAccessible, and needs to take care of setting up
that parent/child relationship.
This protocol is thus used to make sure it knows it's talking to us, and not
just some random |id|.
*/
@protocol mozAccessible
// returns whether this accessible is the root accessible. there is one
// root accessible per window.
- (BOOL)isRoot;
// some mozAccessibles implement accessibility support in place of another object. for example,
// ChildView gets its support from us.
//
// instead of returning a mozAccessible to the OS when it wants an object, we need to pass the view we represent, so the
// OS doesn't get confused and think we return some random object.
- (BOOL)hasRepresentedView;
- (id)representedView;
#ifdef DEBUG
// debug utility that will print the native accessibility tree, starting
// at this node.
- (void)printHierarchy;
#endif
/*** general ***/
// returns the accessible at the specified point.
- (id)accessibilityHitTest:(NSPoint)point;
// whether this element is flagged as ignored.
- (BOOL)accessibilityIsIgnored;
// currently focused UI element (possibly a child accessible)
- (id)accessibilityFocusedUIElement;
/*** attributes ***/
// all supported attributes
- (NSArray*)accessibilityAttributeNames;
// value for given attribute.
- (id)accessibilityAttributeValue:(NSString*)attribute;
// whether a particular attribute can be modified
- (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute;
/*** actions ***/
- (NSArray*)accessibilityActionNames;
- (NSString*)accessibilityActionDescription:(NSString*)action;
- (void)accessibilityPerformAction:(NSString*)action;
@end