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/AccessibilityTableRow.h" 31 32#include "core/accessibility/AccessibilityTableCell.h" 33#include "core/rendering/RenderTableRow.h" 34 35using namespace std; 36 37namespace WebCore { 38 39using namespace HTMLNames; 40 41AccessibilityTableRow::AccessibilityTableRow(RenderObject* renderer) 42 : AccessibilityRenderObject(renderer) 43{ 44} 45 46AccessibilityTableRow::~AccessibilityTableRow() 47{ 48} 49 50PassRefPtr<AccessibilityTableRow> AccessibilityTableRow::create(RenderObject* renderer) 51{ 52 return adoptRef(new AccessibilityTableRow(renderer)); 53} 54 55AccessibilityRole AccessibilityTableRow::determineAccessibilityRole() 56{ 57 if (!isTableRow()) 58 return AccessibilityRenderObject::determineAccessibilityRole(); 59 60 m_ariaRole = determineAriaRoleAttribute(); 61 62 AccessibilityRole ariaRole = ariaRoleAttribute(); 63 if (ariaRole != UnknownRole) 64 return ariaRole; 65 66 return RowRole; 67} 68 69bool AccessibilityTableRow::isTableRow() const 70{ 71 AccessibilityObject* table = parentTable(); 72 if (!table || !table->isAccessibilityTable()) 73 return false; 74 75 return true; 76} 77 78AccessibilityObject* AccessibilityTableRow::observableObject() const 79{ 80 // This allows the table to be the one who sends notifications about tables. 81 return parentTable(); 82} 83 84bool AccessibilityTableRow::computeAccessibilityIsIgnored() const 85{ 86 AccessibilityObjectInclusion decision = defaultObjectInclusion(); 87 if (decision == IncludeObject) 88 return false; 89 if (decision == IgnoreObject) 90 return true; 91 92 if (!isTableRow()) 93 return AccessibilityRenderObject::computeAccessibilityIsIgnored(); 94 95 return false; 96} 97 98AccessibilityObject* AccessibilityTableRow::parentTable() const 99{ 100 AccessibilityObject* parent = parentObjectUnignored(); 101 if (!parent || !parent->isAccessibilityTable()) 102 return 0; 103 104 return parent; 105} 106 107AccessibilityObject* AccessibilityTableRow::headerObject() 108{ 109 if (!m_renderer || !m_renderer->isTableRow()) 110 return 0; 111 112 AccessibilityChildrenVector rowChildren = children(); 113 if (!rowChildren.size()) 114 return 0; 115 116 // check the first element in the row to see if it is a TH element 117 AccessibilityObject* cell = rowChildren[0].get(); 118 if (!cell->isTableCell()) 119 return 0; 120 121 RenderObject* cellRenderer = static_cast<AccessibilityTableCell*>(cell)->renderer(); 122 if (!cellRenderer) 123 return 0; 124 125 Node* cellNode = cellRenderer->node(); 126 if (!cellNode || !cellNode->hasTagName(thTag)) 127 return 0; 128 129 return cell; 130} 131 132} // namespace WebCore 133