WebCore/accessibility/AccessibilityList.cpp

   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  *
   8  * 1.  Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  * 2.  Redistributions in binary form must reproduce the above copyright
  11  *     notice, this list of conditions and the following disclaimer in the
  12  *     documentation and/or other materials provided with the distribution.
  13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  14  *     its contributors may be used to endorse or promote products derived
  15  *     from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include "config.h"
  30 #include "AccessibilityList.h"
  31
  32 #include "AXObjectCache.h"
  33 #include "HTMLNames.h"
  34 #include "RenderObject.h"
  35
  36 using namespace std;
  37
  38 namespace WebCore {
  39
  40 using namespace HTMLNames;
  41
  42 AccessibilityList::AccessibilityList(RenderObject* renderer)
  43     : AccessibilityRenderObject(renderer)
  44 {
  45 }
  46
  47 AccessibilityList::~AccessibilityList()
  48 {
  49 }
  50
  51 PassRefPtr<AccessibilityList> AccessibilityList::create(RenderObject* renderer)
  52 {
  53     return adoptRef(new AccessibilityList(renderer));
  54 }
  55
  56 bool AccessibilityList::accessibilityIsIgnored() const
  57 {
  58     // Is the platform interested in the object?
  59     if (accessibilityPlatformIncludesObject() == IgnoreObject)
  60         return true;
  61
  62     // lists don't appear on tiger/leopard on the mac
  63 #if ACCESSIBILITY_LISTS
  64     return false;
  65 #else
  66     return true;
  67 #endif
  68 }
  69
  70 bool AccessibilityList::isUnorderedList() const
  71 {
  72     if (!m_renderer)
  73         return false;
  74
  75     Node* node = m_renderer->node();
  76
  77     // The ARIA spec says the "list" role is supposed to mimic a UL or OL tag.
  78     // Since it can't be both, it's probably OK to say that it's an un-ordered list.
  79     // On the Mac, there's no distinction to the client.
  80     if (ariaRoleAttribute() == ListRole)
  81         return true;
  82
  83     return node && node->hasTagName(ulTag);
  84 }
  85
  86 bool AccessibilityList::isOrderedList() const
  87 {
  88     if (!m_renderer)
  89         return false;
  90
  91     // ARIA says a directory is like a static table of contents, which sounds like an ordered list.
  92     if (ariaRoleAttribute() == DirectoryRole)
  93         return true;
  94
  95     Node* node = m_renderer->node();
  96     return node && node->hasTagName(olTag);
  97 }
  98
  99 bool AccessibilityList::isDefinitionList() const
 100 {
 101     if (!m_renderer)
 102         return false;
 103
 104     Node* node = m_renderer->node();
 105     return node && node->hasTagName(dlTag);
 106 }
 107
 108
 109 } // namespace WebCore