| /* |
| * 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 "DateComponents.h" |
| #include "HTMLInputElement.h" |
| #include "HTMLNames.h" |
| #include "KeyboardEvent.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(serialize(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::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(); |
| 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); |
| } |
| |
| bool BaseDateAndTimeInputType::hasSpinButton() |
| { |
| return true; |
| } |
| |
| } // namespace WebCore |