The Tor Browser: accessible/src/mac/mozAccessibleProtocol.h@141e0f1194b1

     1 /* -*- Mode: Objective-C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #import <Cocoa/Cocoa.h>

     8 #import "mozView.h"

    10 /* This protocol's primary use is so widget/cocoa can talk back to us

    11    properly.

    13    ChildView owns the topmost mozRootAccessible, and needs to take care of setting up

    14    that parent/child relationship.

    16    This protocol is thus used to make sure it knows it's talking to us, and not

    17    just some random |id|.

    18 */

    20 @protocol mozAccessible

    22 // returns whether this accessible is the root accessible. there is one

    23 // root accessible per window.

    24 - (BOOL)isRoot;

    26 // some mozAccessibles implement accessibility support in place of another object. for example,

    27 // ChildView gets its support from us.

    28 //

    29 // instead of returning a mozAccessible to the OS when it wants an object, we need to pass the view we represent, so the

    30 // OS doesn't get confused and think we return some random object.

    31 - (BOOL)hasRepresentedView;

    32 - (id)representedView;

    34 #ifdef DEBUG

    35 // debug utility that will print the native accessibility tree, starting

    36 // at this node.

    37 - (void)printHierarchy;

    38 #endif

    40 /*** general ***/

    42 // returns the accessible at the specified point.

    43 - (id)accessibilityHitTest:(NSPoint)point;

    45 // whether this element is flagged as ignored.

    46 - (BOOL)accessibilityIsIgnored;

    48 // currently focused UI element (possibly a child accessible)

    49 - (id)accessibilityFocusedUIElement;

    51 /*** attributes ***/

    53 // all supported attributes

    54 - (NSArray*)accessibilityAttributeNames;

    56 // value for given attribute.

    57 - (id)accessibilityAttributeValue:(NSString*)attribute;

    59 // whether a particular attribute can be modified

    60 - (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute;

    62 /*** actions ***/

    64 - (NSArray*)accessibilityActionNames;

    65 - (NSString*)accessibilityActionDescription:(NSString*)action;

    66 - (void)accessibilityPerformAction:(NSString*)action;

    68 @end

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