1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "core/html/BaseDateAndTimeInputType.h" 33 34#include <limits> 35#include "core/html/HTMLInputElement.h" 36#include "core/platform/text/PlatformLocale.h" 37#include "wtf/CurrentTime.h" 38#include "wtf/DateMath.h" 39#include "wtf/MathExtras.h" 40#include "wtf/text/WTFString.h" 41 42namespace WebCore { 43 44using namespace HTMLNames; 45using namespace std; 46 47static const int msecPerMinute = 60 * 1000; 48static const int msecPerSecond = 1000; 49 50double BaseDateAndTimeInputType::valueAsDate() const 51{ 52 return valueAsDouble(); 53} 54 55void BaseDateAndTimeInputType::setValueAsDate(double value, ExceptionState&) const 56{ 57 element()->setValue(serializeWithMilliseconds(value)); 58} 59 60double BaseDateAndTimeInputType::valueAsDouble() const 61{ 62 const Decimal value = parseToNumber(element()->value(), Decimal::nan()); 63 return value.isFinite() ? value.toDouble() : DateComponents::invalidMilliseconds(); 64} 65 66void BaseDateAndTimeInputType::setValueAsDecimal(const Decimal& newValue, TextFieldEventBehavior eventBehavior, ExceptionState&) const 67{ 68 element()->setValue(serialize(newValue), eventBehavior); 69} 70 71bool BaseDateAndTimeInputType::typeMismatchFor(const String& value) const 72{ 73 return !value.isEmpty() && !parseToDateComponents(value, 0); 74} 75 76bool BaseDateAndTimeInputType::typeMismatch() const 77{ 78 return typeMismatchFor(element()->value()); 79} 80 81Decimal BaseDateAndTimeInputType::defaultValueForStepUp() const 82{ 83 double ms = currentTimeMS(); 84 double utcOffset = calculateUTCOffset(); 85 double dstOffset = calculateDSTOffset(ms, utcOffset); 86 int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute); 87 return Decimal::fromDouble(ms + (offset * msPerMinute)); 88} 89 90bool BaseDateAndTimeInputType::isSteppable() const 91{ 92 return true; 93} 94 95Decimal BaseDateAndTimeInputType::parseToNumber(const String& source, const Decimal& defaultValue) const 96{ 97 DateComponents date; 98 if (!parseToDateComponents(source, &date)) 99 return defaultValue; 100 double msec = date.millisecondsSinceEpoch(); 101 ASSERT(std::isfinite(msec)); 102 return Decimal::fromDouble(msec); 103} 104 105bool BaseDateAndTimeInputType::parseToDateComponents(const String& source, DateComponents* out) const 106{ 107 if (source.isEmpty()) 108 return false; 109 DateComponents ignoredResult; 110 if (!out) 111 out = &ignoredResult; 112 return parseToDateComponentsInternal(source, out); 113} 114 115String BaseDateAndTimeInputType::serialize(const Decimal& value) const 116{ 117 if (!value.isFinite()) 118 return String(); 119 DateComponents date; 120 if (!setMillisecondToDateComponents(value.toDouble(), &date)) 121 return String(); 122 return serializeWithComponents(date); 123} 124 125String BaseDateAndTimeInputType::serializeWithComponents(const DateComponents& date) const 126{ 127 Decimal step; 128 if (!element()->getAllowedValueStep(&step)) 129 return date.toString(); 130 if (step.remainder(msecPerMinute).isZero()) 131 return date.toString(DateComponents::None); 132 if (step.remainder(msecPerSecond).isZero()) 133 return date.toString(DateComponents::Second); 134 return date.toString(DateComponents::Millisecond); 135} 136 137String BaseDateAndTimeInputType::serializeWithMilliseconds(double value) const 138{ 139 return serialize(Decimal::fromDouble(value)); 140} 141 142String BaseDateAndTimeInputType::localizeValue(const String& proposedValue) const 143{ 144 DateComponents date; 145 if (!parseToDateComponents(proposedValue, &date)) 146 return proposedValue; 147 148 String localized = element()->locale().formatDateTime(date); 149 return localized.isEmpty() ? proposedValue : localized; 150} 151 152String BaseDateAndTimeInputType::visibleValue() const 153{ 154 return localizeValue(element()->value()); 155} 156 157String BaseDateAndTimeInputType::sanitizeValue(const String& proposedValue) const 158{ 159 return typeMismatchFor(proposedValue) ? emptyString() : proposedValue; 160} 161 162bool BaseDateAndTimeInputType::supportsReadOnly() const 163{ 164 return true; 165} 166 167bool BaseDateAndTimeInputType::shouldRespectListAttribute() 168{ 169 return InputType::themeSupportsDataListUI(this); 170} 171 172bool BaseDateAndTimeInputType::valueMissing(const String& value) const 173{ 174 return element()->isRequired() && value.isEmpty(); 175} 176 177bool BaseDateAndTimeInputType::shouldShowFocusRingOnMouseFocus() const 178{ 179 return true; 180} 181 182} // namespace WebCore 183