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

 1/*
 2 * Copyright (C) 2008 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 "AccessibilityTableHeaderContainer.h"
31
32#include "AXObjectCache.h"
33#include "AccessibilityTable.h"
34
35using namespace std;
36
37namespace WebCore {
38
39AccessibilityTableHeaderContainer::AccessibilityTableHeaderContainer()
40    : m_parentTable(0)
41{
42}
43
44AccessibilityTableHeaderContainer::~AccessibilityTableHeaderContainer()
45{
46}
47
48PassRefPtr<AccessibilityTableHeaderContainer> AccessibilityTableHeaderContainer::create()
49{
50    return adoptRef(new AccessibilityTableHeaderContainer());
51}
52    
53const AccessibilityObject::AccessibilityChildrenVector& AccessibilityTableHeaderContainer::children()
54{
55    if (!m_haveChildren)
56        addChildren();
57    return m_children;
58}
59   
60IntRect AccessibilityTableHeaderContainer::elementRect() const
61{
62    // this will be filled in when addChildren is called
63    return m_headerRect;
64}
65    
66IntSize AccessibilityTableHeaderContainer::size() const
67{
68    return elementRect().size();
69}
70    
71void AccessibilityTableHeaderContainer::addChildren()
72{
73    ASSERT(!m_haveChildren); 
74    
75    m_haveChildren = true;
76    if (!m_parentTable || !m_parentTable->isDataTable())
77        return;
78    
79    static_cast<AccessibilityTable*>(m_parentTable)->columnHeaders(m_children);
80    
81    unsigned length = m_children.size();
82    for (unsigned k = 0; k < length; ++k)
83        m_headerRect.unite(m_children[k]->elementRect());
84}
85
86} // namespace WebCore