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 "core/accessibility/AXTableRow.h" 31 32#include "core/accessibility/AXTableCell.h" 33#include "core/rendering/RenderTableRow.h" 34 35 36namespace WebCore { 37 38using namespace HTMLNames; 39 40AXTableRow::AXTableRow(RenderObject* renderer) 41 : AXRenderObject(renderer) 42{ 43} 44 45AXTableRow::~AXTableRow() 46{ 47} 48 49PassRefPtr<AXTableRow> AXTableRow::create(RenderObject* renderer) 50{ 51 return adoptRef(new AXTableRow(renderer)); 52} 53 54AccessibilityRole AXTableRow::determineAccessibilityRole() 55{ 56 if (!isTableRow()) 57 return AXRenderObject::determineAccessibilityRole(); 58 59 m_ariaRole = determineAriaRoleAttribute(); 60 61 AccessibilityRole ariaRole = ariaRoleAttribute(); 62 if (ariaRole != UnknownRole) 63 return ariaRole; 64 65 return RowRole; 66} 67 68bool AXTableRow::isTableRow() const 69{ 70 AXObject* table = parentTable(); 71 if (!table || !table->isAXTable()) 72 return false; 73 74 return true; 75} 76 77AXObject* AXTableRow::observableObject() const 78{ 79 // This allows the table to be the one who sends notifications about tables. 80 return parentTable(); 81} 82 83bool AXTableRow::computeAccessibilityIsIgnored() const 84{ 85 AXObjectInclusion decision = defaultObjectInclusion(); 86 if (decision == IncludeObject) 87 return false; 88 if (decision == IgnoreObject) 89 return true; 90 91 if (!isTableRow()) 92 return AXRenderObject::computeAccessibilityIsIgnored(); 93 94 return false; 95} 96 97AXObject* AXTableRow::parentTable() const 98{ 99 AXObject* parent = parentObjectUnignored(); 100 if (!parent || !parent->isAXTable()) 101 return 0; 102 103 return parent; 104} 105 106AXObject* AXTableRow::headerObject() 107{ 108 if (!m_renderer || !m_renderer->isTableRow()) 109 return 0; 110 111 AccessibilityChildrenVector rowChildren = children(); 112 if (!rowChildren.size()) 113 return 0; 114 115 // check the first element in the row to see if it is a TH element 116 AXObject* cell = rowChildren[0].get(); 117 if (!cell->isTableCell()) 118 return 0; 119 120 RenderObject* cellRenderer = toAXTableCell(cell)->renderer(); 121 if (!cellRenderer) 122 return 0; 123 124 Node* cellNode = cellRenderer->node(); 125 if (!cellNode || !cellNode->hasTagName(thTag)) 126 return 0; 127 128 return cell; 129} 130 131} // namespace WebCore 132