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| 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 "core/accessibility/AXARIAGridCell.h" | |
| 31 | |
| 32 #include "core/accessibility/AXTable.h" | |
| 33 #include "core/accessibility/AXTableRow.h" | |
| 34 | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 AXARIAGridCell::AXARIAGridCell(RenderObject* renderer) | |
| 39 : AXTableCell(renderer) | |
| 40 { | |
| 41 } | |
| 42 | |
| 43 AXARIAGridCell::~AXARIAGridCell() | |
| 44 { | |
| 45 } | |
| 46 | |
| 47 PassRefPtr<AXARIAGridCell> AXARIAGridCell::create(RenderObject* renderer) | |
| 48 { | |
| 49 return adoptRef(new AXARIAGridCell(renderer)); | |
| 50 } | |
| 51 | |
| 52 AXObject* AXARIAGridCell::parentTable() const | |
| 53 { | |
| 54 AXObject* parent = parentObjectUnignored(); | |
| 55 if (!parent) | |
| 56 return 0; | |
| 57 | |
| 58 if (parent->isAXTable()) | |
| 59 return parent; | |
| 60 | |
| 61 // It could happen that we hadn't reached the parent table yet (in | |
| 62 // case objects for rows were not ignoring accessibility) so for | |
| 63 // that reason we need to run parentObjectUnignored once again. | |
| 64 parent = parent->parentObjectUnignored(); | |
| 65 if (!parent || !parent->isAXTable()) | |
| 66 return 0; | |
| 67 | |
| 68 return parent; | |
| 69 } | |
| 70 | |
| 71 void AXARIAGridCell::rowIndexRange(pair<unsigned, unsigned>& rowRange) | |
| 72 { | |
| 73 AXObject* parent = parentObjectUnignored(); | |
| 74 if (!parent) | |
| 75 return; | |
| 76 | |
| 77 if (parent->isTableRow()) { | |
| 78 // We already got a table row, use its API. | |
| 79 rowRange.first = toAXTableRow(parent)->rowIndex(); | |
| 80 } else if (parent->isAXTable()) { | |
| 81 // We reached the parent table, so we need to inspect its | |
| 82 // children to determine the row index for the cell in it. | |
| 83 unsigned columnCount = toAXTable(parent)->columnCount(); | |
| 84 if (!columnCount) | |
| 85 return; | |
| 86 | |
| 87 AccessibilityChildrenVector siblings = parent->children(); | |
| 88 unsigned childrenSize = siblings.size(); | |
| 89 for (unsigned k = 0; k < childrenSize; ++k) { | |
| 90 if (siblings[k].get() == this) { | |
| 91 rowRange.first = k / columnCount; | |
| 92 break; | |
| 93 } | |
| 94 } | |
| 95 } | |
| 96 | |
| 97 // as far as I can tell, grid cells cannot span rows | |
| 98 rowRange.second = 1; | |
| 99 } | |
| 100 | |
| 101 void AXARIAGridCell::columnIndexRange(pair<unsigned, unsigned>& columnRange) | |
| 102 { | |
| 103 AXObject* parent = parentObjectUnignored(); | |
| 104 if (!parent) | |
| 105 return; | |
| 106 | |
| 107 if (!parent->isTableRow() && !parent->isAXTable()) | |
| 108 return; | |
| 109 | |
| 110 AccessibilityChildrenVector siblings = parent->children(); | |
| 111 unsigned childrenSize = siblings.size(); | |
| 112 for (unsigned k = 0; k < childrenSize; ++k) { | |
| 113 if (siblings[k].get() == this) { | |
| 114 columnRange.first = k; | |
| 115 break; | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 // as far as I can tell, grid cells cannot span columns | |
| 120 columnRange.second = 1; | |
| 121 } | |
| 122 | |
| 123 } // namespace blink | |
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Chromium Code Reviews
Issue 713933002:
Create Source/modules/accessibility/ and move most of core/accessibility/* into it (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master