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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "BaseDateAndTimeInputType.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "KeyboardEvent.h"
#include "LocalizedDate.h"
#include <limits>
#include <wtf/CurrentTime.h>
#include <wtf/DateMath.h>
#include <wtf/MathExtras.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
using namespace HTMLNames;
using namespace std;
static const double msecPerMinute = 60 * 1000;
static const double msecPerSecond = 1000;
double BaseDateAndTimeInputType::valueAsDate() const
{
return parseToDouble(element()->value(), DateComponents::invalidMilliseconds());
}
void BaseDateAndTimeInputType::setValueAsDate(double value, ExceptionCode&) const
{
element()->setValue(serializeWithMilliseconds(value));
}
double BaseDateAndTimeInputType::valueAsNumber() const
{
return parseToDouble(element()->value(), numeric_limits<double>::quiet_NaN());
}
void BaseDateAndTimeInputType::setValueAsNumber(double newValue, ExceptionCode&) const
{
element()->setValue(serialize(newValue));
}
bool BaseDateAndTimeInputType::typeMismatchFor(const String& value) const
{
return !value.isEmpty() && !parseToDateComponents(value, 0);
}
bool BaseDateAndTimeInputType::typeMismatch() const
{
return typeMismatchFor(element()->value());
}
bool BaseDateAndTimeInputType::rangeUnderflow(const String& value) const
{
const double nan = numeric_limits<double>::quiet_NaN();
double doubleValue = parseToDouble(value, nan);
return isfinite(doubleValue) && doubleValue < minimum();
}
bool BaseDateAndTimeInputType::rangeOverflow(const String& value) const
{
const double nan = numeric_limits<double>::quiet_NaN();
double doubleValue = parseToDouble(value, nan);
return isfinite(doubleValue) && doubleValue > maximum();
}
bool BaseDateAndTimeInputType::supportsRangeLimitation() const
{
return true;
}
double BaseDateAndTimeInputType::defaultValueForStepUp() const
{
double ms = currentTimeMS();
double utcOffset = calculateUTCOffset();
double dstOffset = calculateDSTOffset(ms, utcOffset);
int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
return ms + (offset * msPerMinute);
}
bool BaseDateAndTimeInputType::isSteppable() const
{
return true;
}
bool BaseDateAndTimeInputType::stepMismatch(const String& value, double step) const
{
const double nan = numeric_limits<double>::quiet_NaN();
double doubleValue = parseToDouble(value, nan);
doubleValue = fabs(doubleValue - stepBase());
if (!isfinite(doubleValue))
return false;
ASSERT(round(doubleValue) == doubleValue);
ASSERT(round(step) == step);
return fmod(doubleValue, step);
}
double BaseDateAndTimeInputType::stepBase() const
{
return parseToDouble(element()->fastGetAttribute(minAttr), defaultStepBase());
}
void BaseDateAndTimeInputType::handleKeydownEvent(KeyboardEvent* event)
{
handleKeydownEventForSpinButton(event);
if (!event->defaultHandled())
TextFieldInputType::handleKeydownEvent(event);
}
void BaseDateAndTimeInputType::handleWheelEvent(WheelEvent* event)
{
handleWheelEventForSpinButton(event);
}
double BaseDateAndTimeInputType::parseToDouble(const String& src, double defaultValue) const
{
DateComponents date;
if (!parseToDateComponents(src, &date))
return defaultValue;
double msec = date.millisecondsSinceEpoch();
ASSERT(isfinite(msec));
return msec;
}
bool BaseDateAndTimeInputType::parseToDateComponents(const String& source, DateComponents* out) const
{
if (source.isEmpty())
return false;
DateComponents ignoredResult;
if (!out)
out = &ignoredResult;
return parseToDateComponentsInternal(source.characters(), source.length(), out);
}
String BaseDateAndTimeInputType::serialize(double value) const
{
if (!isfinite(value))
return String();
DateComponents date;
if (!setMillisecondToDateComponents(value, &date))
return String();
return serializeWithComponents(date);
}
String BaseDateAndTimeInputType::serializeWithComponents(const DateComponents& date) const
{
double step;
if (!element()->getAllowedValueStep(&step))
return date.toString();
if (!fmod(step, msecPerMinute))
return date.toString(DateComponents::None);
if (!fmod(step, msecPerSecond))
return date.toString(DateComponents::Second);
return date.toString(DateComponents::Millisecond);
}
String BaseDateAndTimeInputType::serializeWithMilliseconds(double value) const
{
return serialize(value);
}
String BaseDateAndTimeInputType::visibleValue() const
{
String currentValue = element()->value();
DateComponents date;
if (!parseToDateComponents(currentValue, &date))
return currentValue;
String localized = formatLocalizedDate(date);
return localized.isEmpty() ? currentValue : localized;
}
String BaseDateAndTimeInputType::convertFromVisibleValue(const String& visibleValue) const
{
if (visibleValue.isEmpty())
return visibleValue;
double parsedValue = parseLocalizedDate(visibleValue, dateType());
if (!isfinite(parsedValue))
return visibleValue;
return serializeWithMilliseconds(parsedValue);
}
} // namespace WebCore
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