1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*
* Copyright (C) 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "AccessibilityARIAGrid.h"
#include "AXObjectCache.h"
#include "AccessibilityARIAGridRow.h"
#include "AccessibilityTableCell.h"
#include "AccessibilityTableColumn.h"
#include "AccessibilityTableHeaderContainer.h"
#include "AccessibilityTableRow.h"
#include "RenderObject.h"
#include "RenderTableSection.h"
namespace WebCore {
AccessibilityARIAGrid::AccessibilityARIAGrid(RenderObject* renderer)
: AccessibilityTable(renderer)
{
}
AccessibilityARIAGrid::~AccessibilityARIAGrid()
{
}
Ref<AccessibilityARIAGrid> AccessibilityARIAGrid::create(RenderObject* renderer)
{
return adoptRef(*new AccessibilityARIAGrid(renderer));
}
bool AccessibilityARIAGrid::addTableCellChild(AccessibilityObject* child, HashSet<AccessibilityObject*>& appendedRows, unsigned& columnCount)
{
if (!child || (!is<AccessibilityTableRow>(*child) && !is<AccessibilityARIAGridRow>(*child)))
return false;
auto& row = downcast<AccessibilityTableRow>(*child);
if (appendedRows.contains(&row))
return false;
// store the maximum number of columns
unsigned rowCellCount = row.children().size();
if (rowCellCount > columnCount)
columnCount = rowCellCount;
row.setRowIndex((int)m_rows.size());
m_rows.append(&row);
// Try adding the row if it's not ignoring accessibility,
// otherwise add its children (the cells) as the grid's children.
if (!row.accessibilityIsIgnored())
m_children.append(&row);
else
m_children.appendVector(row.children());
appendedRows.add(&row);
return true;
}
void AccessibilityARIAGrid::addRowDescendant(AccessibilityObject* rowChild, HashSet<AccessibilityObject*>& appendedRows, unsigned& columnCount)
{
if (!rowChild)
return;
if (!rowChild->isTableRow() || !rowChild->node()) {
// Although a "grid" should have rows as its direct descendants, if this is not a table row,
// or this row is anonymous, dive deeper into the descendants to try to find a valid row.
for (const auto& child : rowChild->children())
addRowDescendant(child.get(), appendedRows, columnCount);
} else
addTableCellChild(rowChild, appendedRows, columnCount);
}
void AccessibilityARIAGrid::addChildren()
{
ASSERT(!m_haveChildren);
if (!isExposableThroughAccessibility()) {
AccessibilityRenderObject::addChildren();
return;
}
m_haveChildren = true;
if (!m_renderer)
return;
AXObjectCache* axCache = m_renderer->document().axObjectCache();
// Add the children rows but be mindful in case there are footer sections in this table.
HashSet<AccessibilityObject*> appendedRows;
unsigned columnCount = 0;
AccessibilityChildrenVector footerSections;
for (RefPtr<AccessibilityObject> child = firstChild(); child; child = child->nextSibling()) {
bool footerSection = false;
if (RenderObject* childRenderer = child->renderer()) {
if (is<RenderTableSection>(*childRenderer)) {
RenderTableSection& childSection = downcast<RenderTableSection>(*childRenderer);
if (&childSection == childSection.table()->footer()) {
footerSections.append(child);
footerSection = true;
}
}
}
if (!footerSection)
addRowDescendant(child.get(), appendedRows, columnCount);
}
for (const auto& footerSection : footerSections)
addRowDescendant(footerSection.get(), appendedRows, columnCount);
// make the columns based on the number of columns in the first body
for (unsigned i = 0; i < columnCount; ++i) {
auto& column = downcast<AccessibilityTableColumn>(*axCache->getOrCreate(ColumnRole));
column.setColumnIndex(static_cast<int>(i));
column.setParent(this);
m_columns.append(&column);
if (!column.accessibilityIsIgnored())
m_children.append(&column);
}
AccessibilityObject* headerContainerObject = headerContainer();
if (headerContainerObject && !headerContainerObject->accessibilityIsIgnored())
m_children.append(headerContainerObject);
}
} // namespace WebCore
|
