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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/AXARIAGrid.h" | |
| 31 | |
| 32 #include "core/accessibility/AXObjectCacheImpl.h" | |
| 33 #include "core/accessibility/AXTableColumn.h" | |
| 34 #include "core/accessibility/AXTableRow.h" | |
| 35 #include "core/rendering/RenderObject.h" | |
| 36 | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 AXARIAGrid::AXARIAGrid(RenderObject* renderer) | |
| 41 : AXTable(renderer) | |
| 42 { | |
| 43 } | |
| 44 | |
| 45 AXARIAGrid::~AXARIAGrid() | |
| 46 { | |
| 47 } | |
| 48 | |
| 49 PassRefPtr<AXARIAGrid> AXARIAGrid::create(RenderObject* renderer) | |
| 50 { | |
| 51 return adoptRef(new AXARIAGrid(renderer)); | |
| 52 } | |
| 53 | |
| 54 bool AXARIAGrid::addTableCellChild(AXObject* child, HashSet<AXObject*>& appended
Rows, unsigned& columnCount) | |
| 55 { | |
| 56 if (!child || !child->isTableRow() || child->ariaRoleAttribute() != RowRole) | |
| 57 return false; | |
| 58 | |
| 59 AXTableRow* row = toAXTableRow(child); | |
| 60 if (appendedRows.contains(row)) | |
| 61 return false; | |
| 62 | |
| 63 // store the maximum number of columns | |
| 64 unsigned rowCellCount = row->children().size(); | |
| 65 if (rowCellCount > columnCount) | |
| 66 columnCount = rowCellCount; | |
| 67 | |
| 68 row->setRowIndex((int)m_rows.size()); | |
| 69 m_rows.append(row); | |
| 70 | |
| 71 // Try adding the row if it's not ignoring accessibility, | |
| 72 // otherwise add its children (the cells) as the grid's children. | |
| 73 if (!row->accessibilityIsIgnored()) | |
| 74 m_children.append(row); | |
| 75 else | |
| 76 m_children.appendVector(row->children()); | |
| 77 | |
| 78 appendedRows.add(row); | |
| 79 return true; | |
| 80 } | |
| 81 | |
| 82 void AXARIAGrid::addChildren() | |
| 83 { | |
| 84 ASSERT(!m_haveChildren); | |
| 85 | |
| 86 if (!isAXTable()) { | |
| 87 AXRenderObject::addChildren(); | |
| 88 return; | |
| 89 } | |
| 90 | |
| 91 m_haveChildren = true; | |
| 92 if (!m_renderer) | |
| 93 return; | |
| 94 | |
| 95 AXObjectCacheImpl* axCache = toAXObjectCacheImpl(m_renderer->document().axOb
jectCache()); | |
| 96 | |
| 97 // add only rows that are labeled as aria rows | |
| 98 HashSet<AXObject*> appendedRows; | |
| 99 unsigned columnCount = 0; | |
| 100 for (RefPtr<AXObject> child = firstChild(); child; child = child->nextSiblin
g()) { | |
| 101 | |
| 102 if (!addTableCellChild(child.get(), appendedRows, columnCount)) { | |
| 103 | |
| 104 // in case the render tree doesn't match the expected ARIA hierarchy
, look at the children | |
| 105 if (!child->hasChildren()) | |
| 106 child->addChildren(); | |
| 107 | |
| 108 // The children of this non-row will contain all non-ignored element
s (recursing to find them). | |
| 109 // This allows the table to dive arbitrarily deep to find the rows. | |
| 110 AccessibilityChildrenVector children = child->children(); | |
| 111 size_t length = children.size(); | |
| 112 for (size_t i = 0; i < length; ++i) | |
| 113 addTableCellChild(children[i].get(), appendedRows, columnCount); | |
| 114 } | |
| 115 } | |
| 116 | |
| 117 // make the columns based on the number of columns in the first body | |
| 118 for (unsigned i = 0; i < columnCount; ++i) { | |
| 119 AXTableColumn* column = toAXTableColumn(axCache->getOrCreate(ColumnRole)
); | |
| 120 column->setColumnIndex((int)i); | |
| 121 column->setParent(this); | |
| 122 m_columns.append(column); | |
| 123 if (!column->accessibilityIsIgnored()) | |
| 124 m_children.append(column); | |
| 125 } | |
| 126 | |
| 127 AXObject* headerContainerObject = headerContainer(); | |
| 128 if (headerContainerObject && !headerContainerObject->accessibilityIsIgnored(
)) | |
| 129 m_children.append(headerContainerObject); | |
| 130 } | |
| 131 | |
| 132 } // 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