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      1 /*
      2  * Copyright (C) 2008 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #import "config.h"
     27 #import "AccessibilityObject.h"
     28 
     29 #if HAVE(ACCESSIBILITY)
     30 
     31 #import "AccessibilityObjectWrapper.h"
     32 #import "Widget.h"
     33 
     34 namespace WebCore {
     35 
     36 bool AccessibilityObject::accessibilityIgnoreAttachment() const
     37 {
     38     // FrameView attachments are now handled by AccessibilityScrollView,
     39     // so if this is the attachment, it should be ignored.
     40     Widget* widget = 0;
     41     if (isAttachment() && (widget = widgetForAttachmentView()) && widget->isFrameView())
     42         return true;
     43 
     44     if ([wrapper() attachmentView])
     45         return [[wrapper() attachmentView] accessibilityIsIgnored];
     46 
     47     // Attachments are ignored by default (unless we determine that we should expose them).
     48     return true;
     49 }
     50 
     51 AccessibilityObjectInclusion AccessibilityObject::accessibilityPlatformIncludesObject() const
     52 {
     53     if (isMenuListPopup() || isMenuListOption())
     54         return IgnoreObject;
     55 
     56     // Never expose an unknown object on the Mac. Clients of the AX API will not know what to do with it.
     57     // Special case is when the unknown object is actually an attachment.
     58     if (roleValue() == UnknownRole && !isAttachment())
     59         return IgnoreObject;
     60 
     61     return DefaultBehavior;
     62 }
     63 
     64 } // WebCore
     65 
     66 #endif // HAVE(ACCESSIBILITY)
     67