1/* 2 * Copyright (C) 2009 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 "AccessibilityARIAGridCell.h" 31 32#include "AccessibilityObject.h" 33#include "AccessibilityTable.h" 34#include "AccessibilityTableRow.h" 35 36using namespace std; 37 38namespace WebCore { 39 40AccessibilityARIAGridCell::AccessibilityARIAGridCell(RenderObject* renderer) 41 : AccessibilityTableCell(renderer) 42{ 43} 44 45AccessibilityARIAGridCell::~AccessibilityARIAGridCell() 46{ 47} 48 49PassRefPtr<AccessibilityARIAGridCell> AccessibilityARIAGridCell::create(RenderObject* renderer) 50{ 51 return adoptRef(new AccessibilityARIAGridCell(renderer)); 52} 53 54AccessibilityObject* AccessibilityARIAGridCell::parentTable() const 55{ 56 AccessibilityObject* parent = parentObjectUnignored(); 57 if (!parent) 58 return 0; 59 60 if (parent->isAccessibilityTable()) 61 return parent; 62 63 // It could happen that we hadn't reached the parent table yet (in 64 // case objects for rows were not ignoring accessibility) so for 65 // that reason we need to run parentObjectUnignored once again. 66 parent = parent->parentObjectUnignored(); 67 if (!parent || !parent->isAccessibilityTable()) 68 return 0; 69 70 return parent; 71} 72 73void AccessibilityARIAGridCell::rowIndexRange(pair<int, int>& rowRange) 74{ 75 AccessibilityObject* parent = parentObjectUnignored(); 76 if (!parent) 77 return; 78 79 if (parent->isTableRow()) { 80 // We already got a table row, use its API. 81 rowRange.first = static_cast<AccessibilityTableRow*>(parent)->rowIndex(); 82 } else if (parent->isAccessibilityTable()) { 83 // We reached the parent table, so we need to inspect its 84 // children to determine the row index for the cell in it. 85 unsigned columnCount = static_cast<AccessibilityTable*>(parent)->columnCount(); 86 if (!columnCount) 87 return; 88 89 AccessibilityChildrenVector siblings = parent->children(); 90 unsigned childrenSize = siblings.size(); 91 for (unsigned k = 0; k < childrenSize; ++k) { 92 if (siblings[k].get() == this) { 93 rowRange.first = k / columnCount; 94 break; 95 } 96 } 97 } 98 99 // as far as I can tell, grid cells cannot span rows 100 rowRange.second = 1; 101} 102 103void AccessibilityARIAGridCell::columnIndexRange(pair<int, int>& columnRange) 104{ 105 AccessibilityObject* parent = parentObjectUnignored(); 106 if (!parent) 107 return; 108 109 if (!parent->isTableRow() && !parent->isAccessibilityTable()) 110 return; 111 112 AccessibilityChildrenVector siblings = parent->children(); 113 unsigned childrenSize = siblings.size(); 114 for (unsigned k = 0; k < childrenSize; ++k) { 115 if (siblings[k].get() == this) { 116 columnRange.first = k; 117 break; 118 } 119 } 120 121 // as far as I can tell, grid cells cannot span columns 122 columnRange.second = 1; 123} 124 125} // namespace WebCore 126