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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.
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#include "config.h"
#include "core/html/DateInputType.h"

#include "HTMLNames.h"
#include "core/html/DateTimeFieldsState.h"
#include "core/html/HTMLInputElement.h"
#include "core/html/InputTypeNames.h"
#include "core/platform/DateComponents.h"
#include "core/platform/LocalizedStrings.h"
#include "core/platform/text/PlatformLocale.h"
#include "wtf/PassOwnPtr.h"

namespace WebCore {

using namespace HTMLNames;

static const int dateDefaultStep = 1;
static const int dateDefaultStepBase = 0;
static const int dateStepScaleFactor = 86400000;

inline DateInputType::DateInputType(HTMLInputElement* element)
    : BaseDateInputType(element)
{
}

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

void DateInputType::attach()
{
    observeFeatureIfVisible(UseCounter::InputTypeDate);
}

const AtomicString& DateInputType::formControlType() const
{
    return InputTypeNames::date();
}

DateComponents::Type DateInputType::dateType() const
{
    return DateComponents::Date;
}

StepRange DateInputType::createStepRange(AnyStepHandling anyStepHandling) const
{
    DEFINE_STATIC_LOCAL(const StepRange::StepDescription, stepDescription, (dateDefaultStep, dateDefaultStepBase, dateStepScaleFactor, StepRange::ParsedStepValueShouldBeInteger));

    const Decimal stepBase = parseToNumber(element()->fastGetAttribute(minAttr), 0);
    const Decimal minimum = parseToNumber(element()->fastGetAttribute(minAttr), Decimal::fromDouble(DateComponents::minimumDate()));
    const Decimal maximum = parseToNumber(element()->fastGetAttribute(maxAttr), Decimal::fromDouble(DateComponents::maximumDate()));
    const Decimal step = StepRange::parseStep(anyStepHandling, stepDescription, element()->fastGetAttribute(stepAttr));
    return StepRange(stepBase, minimum, maximum, step, stepDescription);
}

bool DateInputType::parseToDateComponentsInternal(const String& string, DateComponents* out) const
{
    ASSERT(out);
    unsigned end;
    return out->parseDate(string, 0, end) && end == string.length();
}

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

bool DateInputType::isDateField() const
{
    return true;
}

#if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
String DateInputType::formatDateTimeFieldsState(const DateTimeFieldsState& dateTimeFieldsState) const
{
    if (!dateTimeFieldsState.hasDayOfMonth() || !dateTimeFieldsState.hasMonth() || !dateTimeFieldsState.hasYear())
        return emptyString();

    return String::format("%04u-%02u-%02u", dateTimeFieldsState.year(), dateTimeFieldsState.month(), dateTimeFieldsState.dayOfMonth());
}

void DateInputType::setupLayoutParameters(DateTimeEditElement::LayoutParameters& layoutParameters, const DateComponents& date) const
{
    layoutParameters.dateTimeFormat = layoutParameters.locale.dateFormat();
    layoutParameters.fallbackDateTimeFormat = "yyyy-MM-dd";
    if (!parseToDateComponents(element()->fastGetAttribute(minAttr), &layoutParameters.minimum))
        layoutParameters.minimum = DateComponents();
    if (!parseToDateComponents(element()->fastGetAttribute(maxAttr), &layoutParameters.maximum))
        layoutParameters.maximum = DateComponents();
    layoutParameters.placeholderForDay = placeholderForDayOfMonthField();
    layoutParameters.placeholderForMonth = placeholderForMonthField();
    layoutParameters.placeholderForYear = placeholderForYearField();
}

bool DateInputType::isValidFormat(bool hasYear, bool hasMonth, bool hasWeek, bool hasDay, bool hasAMPM, bool hasHour, bool hasMinute, bool hasSecond) const
{
    return hasYear && hasMonth && hasDay;
}
#endif

} // namespace WebCore