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/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "modules/accessibility/AXProgressIndicator.h"
#include "core/html/HTMLProgressElement.h"
#include "core/layout/LayoutProgress.h"
#include "modules/accessibility/AXObjectCacheImpl.h"
#include "wtf/MathExtras.h"
namespace blink {
using namespace HTMLNames;
AXProgressIndicator::AXProgressIndicator(LayoutProgress* layoutObject,
AXObjectCacheImpl& axObjectCache)
: AXLayoutObject(layoutObject, axObjectCache) {}
AXProgressIndicator* AXProgressIndicator::create(
LayoutProgress* layoutObject,
AXObjectCacheImpl& axObjectCache) {
return new AXProgressIndicator(layoutObject, axObjectCache);
}
AccessibilityRole AXProgressIndicator::determineAccessibilityRole() {
if ((m_ariaRole = determineAriaRoleAttribute()) != UnknownRole)
return m_ariaRole;
return ProgressIndicatorRole;
}
bool AXProgressIndicator::computeAccessibilityIsIgnored(
IgnoredReasons* ignoredReasons) const {
return accessibilityIsIgnoredByDefault(ignoredReasons);
}
float AXProgressIndicator::valueForRange() const {
if (hasAttribute(aria_valuenowAttr))
return getAttribute(aria_valuenowAttr).toFloat();
if (element()->position() >= 0)
return clampTo<float>(element()->value());
// Indeterminate progress bar should return 0.
return 0.0f;
}
float AXProgressIndicator::maxValueForRange() const {
if (hasAttribute(aria_valuemaxAttr))
return getAttribute(aria_valuemaxAttr).toFloat();
return clampTo<float>(element()->max());
}
float AXProgressIndicator::minValueForRange() const {
if (hasAttribute(aria_valueminAttr))
return getAttribute(aria_valueminAttr).toFloat();
return 0.0f;
}
HTMLProgressElement* AXProgressIndicator::element() const {
return toLayoutProgress(m_layoutObject)->progressElement();
}
} // namespace blink
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