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/platform/external/webkit/WebCore/accessibility/AccessibilityARIAGridCell.cpp

https://github.com/aharish/totoro-gb-opensource-update2
C++ | 96 lines | 51 code | 16 blank | 29 comment | 11 complexity | 235800434e6c1e9f56c35a15d28bf27a MD5 | raw file
 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 "AccessibilityTableRow.h"
34
35using namespace std;
36
37namespace WebCore {
38    
39AccessibilityARIAGridCell::AccessibilityARIAGridCell(RenderObject* renderer)
40    : AccessibilityTableCell(renderer)
41{
42}
43
44AccessibilityARIAGridCell::~AccessibilityARIAGridCell()
45{
46}
47
48PassRefPtr<AccessibilityARIAGridCell> AccessibilityARIAGridCell::create(RenderObject* renderer)
49{
50    return adoptRef(new AccessibilityARIAGridCell(renderer));
51}
52
53AccessibilityObject* AccessibilityARIAGridCell::parentTable() const
54{
55    AccessibilityObject* parent = parentObjectUnignored();
56    if (!parent || !parent->isTableRow())
57        return 0;
58    
59    parent = parent->parentObjectUnignored();
60    if (!parent || !parent->isDataTable())
61        return 0;
62    
63    return parent;
64}
65    
66void AccessibilityARIAGridCell::rowIndexRange(pair<int, int>& rowRange)
67{
68    AccessibilityObject* parent = parentObjectUnignored();
69    if (!parent || !parent->isTableRow())
70        return;
71
72    // as far as I can tell, grid cells cannot span rows
73    rowRange.first = static_cast<AccessibilityTableRow*>(parent)->rowIndex();
74    rowRange.second = 1;    
75}
76
77void AccessibilityARIAGridCell::columnIndexRange(pair<int, int>& columnRange)
78{
79    AccessibilityObject* parent = parentObjectUnignored();
80    if (!parent || !parent->isTableRow())
81        return;
82    
83    AccessibilityChildrenVector siblings = parent->children();
84    unsigned childrenSize = siblings.size();
85    for (unsigned k = 0; k < childrenSize; ++k) {
86        if (siblings[k].get() == this) {
87            columnRange.first = k;
88            break;
89        }
90    }
91    
92    // as far as I can tell, grid cells cannot span columns
93    columnRange.second = 1;    
94}
95  
96} // namespace WebCore