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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  *
      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     AccessibilityObjectInclusion decision = accessibilityIsIgnoredBase();
     59     if (decision == IncludeObject)
     60         return false;
     61     if (decision == IgnoreObject)
     62         return true;
     63 
     64     // lists don't appear on tiger/leopard on the mac
     65 #if ACCESSIBILITY_LISTS
     66     return false;
     67 #else
     68     return true;
     69 #endif
     70 }
     71 
     72 bool AccessibilityList::isUnorderedList() const
     73 {
     74     if (!m_renderer)
     75         return false;
     76 
     77     Node* node = m_renderer->node();
     78 
     79     // The ARIA spec says the "list" role is supposed to mimic a UL or OL tag.
     80     // Since it can't be both, it's probably OK to say that it's an un-ordered list.
     81     // On the Mac, there's no distinction to the client.
     82     if (ariaRoleAttribute() == ListRole)
     83         return true;
     84 
     85     return node && node->hasTagName(ulTag);
     86 }
     87 
     88 bool AccessibilityList::isOrderedList() const
     89 {
     90     if (!m_renderer)
     91         return false;
     92 
     93     // ARIA says a directory is like a static table of contents, which sounds like an ordered list.
     94     if (ariaRoleAttribute() == DirectoryRole)
     95         return true;
     96 
     97     Node* node = m_renderer->node();
     98     return node && node->hasTagName(olTag);
     99 }
    100 
    101 bool AccessibilityList::isDefinitionList() const
    102 {
    103     if (!m_renderer)
    104         return false;
    105 
    106     Node* node = m_renderer->node();
    107     return node && node->hasTagName(dlTag);
    108 }
    109 
    110 
    111 } // namespace WebCore
    112