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 "AccessibilityTableRow.h" 31 32 #include "AXObjectCache.h" 33 #include "AccessibilityTableCell.h" 34 #include "HTMLNames.h" 35 #include "HTMLTableRowElement.h" 36 #include "RenderObject.h" 37 #include "RenderTableCell.h" 38 #include "RenderTableRow.h" 39 40 using namespace std; 41 42 namespace WebCore { 43 44 using namespace HTMLNames; 45 46 AccessibilityTableRow::AccessibilityTableRow(RenderObject* renderer) 47 : AccessibilityRenderObject(renderer) 48 { 49 } 50 51 AccessibilityTableRow::~AccessibilityTableRow() 52 { 53 } 54 55 PassRefPtr<AccessibilityTableRow> AccessibilityTableRow::create(RenderObject* renderer) 56 { 57 return adoptRef(new AccessibilityTableRow(renderer)); 58 } 59 60 AccessibilityRole AccessibilityTableRow::roleValue() const 61 { 62 if (!isTableRow()) 63 return AccessibilityRenderObject::roleValue(); 64 65 return RowRole; 66 } 67 68 bool AccessibilityTableRow::isTableRow() const 69 { 70 AccessibilityObject* table = parentTable(); 71 if (!table || !table->isAccessibilityTable()) 72 return false; 73 74 return true; 75 } 76 77 bool AccessibilityTableRow::accessibilityIsIgnored() const 78 { 79 AccessibilityObjectInclusion decision = accessibilityIsIgnoredBase(); 80 if (decision == IncludeObject) 81 return false; 82 if (decision == IgnoreObject) 83 return true; 84 85 if (!isTableRow()) 86 return AccessibilityRenderObject::accessibilityIsIgnored(); 87 88 return false; 89 } 90 91 AccessibilityObject* AccessibilityTableRow::parentTable() const 92 { 93 if (!m_renderer || !m_renderer->isTableRow()) 94 return 0; 95 96 // Do not use getOrCreate. parentTable() can be called while the render tree is being modified. 97 return axObjectCache()->get(toRenderTableRow(m_renderer)->table()); 98 } 99 100 AccessibilityObject* AccessibilityTableRow::headerObject() 101 { 102 if (!m_renderer || !m_renderer->isTableRow()) 103 return 0; 104 105 AccessibilityChildrenVector rowChildren = children(); 106 if (!rowChildren.size()) 107 return 0; 108 109 // check the first element in the row to see if it is a TH element 110 AccessibilityObject* cell = rowChildren[0].get(); 111 if (!cell->isTableCell()) 112 return 0; 113 114 RenderObject* cellRenderer = static_cast<AccessibilityTableCell*>(cell)->renderer(); 115 if (!cellRenderer) 116 return 0; 117 118 Node* cellNode = cellRenderer->node(); 119 if (!cellNode || !cellNode->hasTagName(thTag)) 120 return 0; 121 122 return cell; 123 } 124 125 } // namespace WebCore 126