AccessibilityProgressIndicator.cpp revision cad810f21b803229eb11403f9209855525a25d57 
1/*
2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21#include "config.h"
22
23#if ENABLE(PROGRESS_TAG)
24
25#include "AccessibilityProgressIndicator.h"
26
27#include "FloatConversion.h"
28#include "HTMLNames.h"
29#include "HTMLProgressElement.h"
30#include "RenderObject.h"
31#include "RenderProgress.h"
32
33namespace WebCore {
34
35using namespace HTMLNames;
36
37AccessibilityProgressIndicator::AccessibilityProgressIndicator(RenderProgress* renderer)
38    : AccessibilityRenderObject(renderer)
39{
40}
41
42PassRefPtr<AccessibilityProgressIndicator> AccessibilityProgressIndicator::create(RenderProgress* renderer)
43{
44    return adoptRef(new AccessibilityProgressIndicator(renderer));
45}
46
47bool AccessibilityProgressIndicator::accessibilityIsIgnored() const
48{
49    return accessibilityIsIgnoredBase() == IgnoreObject;
50}
51
52float AccessibilityProgressIndicator::valueForRange() const
53{
54    if (element()->position() >= 0)
55        return narrowPrecisionToFloat(element()->value());
56    // Indeterminate progress bar should return 0.
57    return 0.0f;
58}
59
60float AccessibilityProgressIndicator::maxValueForRange() const
61{
62    return narrowPrecisionToFloat(element()->max());
63}
64
65float AccessibilityProgressIndicator::minValueForRange() const
66{
67    return 0.0f;
68}
69
70HTMLProgressElement* AccessibilityProgressIndicator::element() const
71{
72    return toRenderProgress(m_renderer)->progressElement();
73}
74
75
76} // namespace WebCore
77
78#endif // ENABLE(PROGRESS_TAG)
79