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 *
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "WeekInputType.h"

#include "DateComponents.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include <wtf/PassOwnPtr.h>

#if ENABLE(INPUT_TYPE_WEEK)

namespace WebCore {

using namespace HTMLNames;

static const int weekDefaultStepBase = -259200000; // The first day of 1970-W01.
static const int weekDefaultStep = 1;
static const int weekStepScaleFactor = 604800000;

PassOwnPtr<InputType> WeekInputType::create(HTMLInputElement* element)
{
    return adoptPtr(new WeekInputType(element));
}

const AtomicString& WeekInputType::formControlType() const
{
    return InputTypeNames::week();
}

DateComponents::Type WeekInputType::dateType() const
{
    return DateComponents::Week;
}

StepRange WeekInputType::createStepRange(AnyStepHandling anyStepHandling) const
{
    DEFINE_STATIC_LOCAL(const StepRange::StepDescription, stepDescription, (weekDefaultStep, weekDefaultStepBase, weekStepScaleFactor, StepRange::ParsedStepValueShouldBeInteger));

    const Decimal stepBase = parseToNumber(element()->attributeWithoutSynchronization(minAttr), weekDefaultStepBase);
    const Decimal minimum = parseToNumber(element()->attributeWithoutSynchronization(minAttr), Decimal::fromDouble(DateComponents::minimumWeek()));
    const Decimal maximum = parseToNumber(element()->attributeWithoutSynchronization(maxAttr), Decimal::fromDouble(DateComponents::maximumWeek()));
    const Decimal step = StepRange::parseStep(anyStepHandling, stepDescription, element()->attributeWithoutSynchronization(stepAttr));
    return StepRange(stepBase, minimum, maximum, step, stepDescription);
}

bool WeekInputType::parseToDateComponentsInternal(const UChar* characters, unsigned length, DateComponents* out) const
{
    ASSERT(out);
    unsigned end;
    return out->parseWeek(characters, length, 0, end) && end == length;
}

bool WeekInputType::setMillisecondToDateComponents(double value, DateComponents* date) const
{
    ASSERT(date);
    return date->setMillisecondsSinceEpochForWeek(value);
}

bool WeekInputType::isWeekField() const
{
    return true;
}

} // namespace WebCore

#endif
