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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 "config.h"
#if ENABLE(PROGRESS_TAG)
#include "HTMLProgressElement.h"
#include "Attribute.h"
#include "EventNames.h"
#include "ExceptionCode.h"
#include "FormDataList.h"
#include "HTMLDivElement.h"
#include "HTMLFormElement.h"
#include "HTMLNames.h"
#include "HTMLParserIdioms.h"
#include "ProgressShadowElement.h"
#include "RenderProgress.h"
#include "ShadowRoot.h"
#include <wtf/StdLibExtras.h>
namespace WebCore {
using namespace HTMLNames;
const double HTMLProgressElement::IndeterminatePosition = -1;
const double HTMLProgressElement::InvalidPosition = -2;
HTMLProgressElement::HTMLProgressElement(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
: HTMLFormControlElement(tagName, document, form)
{
ASSERT(hasTagName(progressTag));
}
HTMLProgressElement::~HTMLProgressElement()
{
}
PassRefPtr<HTMLProgressElement> HTMLProgressElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
{
RefPtr<HTMLProgressElement> progress = adoptRef(new HTMLProgressElement(tagName, document, form));
progress->createShadowSubtree();
return progress;
}
RenderObject* HTMLProgressElement::createRenderer(RenderArena* arena, RenderStyle*)
{
return new (arena) RenderProgress(this);
}
const AtomicString& HTMLProgressElement::formControlType() const
{
DEFINE_STATIC_LOCAL(const AtomicString, progress, ("progress"));
return progress;
}
void HTMLProgressElement::parseMappedAttribute(Attribute* attribute)
{
if (attribute->name() == valueAttr)
didElementStateChange();
else if (attribute->name() == maxAttr)
didElementStateChange();
else
HTMLFormControlElement::parseMappedAttribute(attribute);
}
void HTMLProgressElement::attach()
{
HTMLFormControlElement::attach();
didElementStateChange();
}
double HTMLProgressElement::value() const
{
const AtomicString& valueString = getAttribute(valueAttr);
double value;
bool ok = parseToDoubleForNumberType(valueString, &value);
if (!ok || value < 0)
return valueString.isNull() ? 1 : 0;
return (value > max()) ? max() : value;
}
void HTMLProgressElement::setValue(double value, ExceptionCode& ec)
{
if (!isfinite(value)) {
ec = NOT_SUPPORTED_ERR;
return;
}
setAttribute(valueAttr, String::number(value >= 0 ? value : 0));
}
double HTMLProgressElement::max() const
{
double max;
bool ok = parseToDoubleForNumberType(getAttribute(maxAttr), &max);
if (!ok || max <= 0)
return 1;
return max;
}
void HTMLProgressElement::setMax(double max, ExceptionCode& ec)
{
if (!isfinite(max)) {
ec = NOT_SUPPORTED_ERR;
return;
}
setAttribute(maxAttr, String::number(max > 0 ? max : 1));
}
double HTMLProgressElement::position() const
{
if (!hasAttribute(valueAttr))
return HTMLProgressElement::IndeterminatePosition;
return value() / max();
}
void HTMLProgressElement::didElementStateChange()
{
m_value->setWidthPercentage(position()*100);
if (renderer())
renderer()->updateFromElement();
}
void HTMLProgressElement::createShadowSubtree()
{
RefPtr<ProgressBarElement> bar = ProgressBarElement::create(document());
m_value = ProgressValueElement::create(document());
ExceptionCode ec = 0;
bar->appendChild(m_value, ec);
ensureShadowRoot()->appendChild(bar, ec);
}
} // namespace
#endif
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