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32 #include "MonthInputType.h"
34 #include "DateComponents.h"
35 #include "HTMLInputElement.h"
36 #include "HTMLNames.h"
37 #include <wtf/CurrentTime.h>
38 #include <wtf/DateMath.h>
39 #include <wtf/MathExtras.h>
40 #include <wtf/PassOwnPtr.h>
44 using namespace HTMLNames;
46 static const double monthDefaultStep = 1.0;
47 static const double monthStepScaleFactor = 1.0;
49 PassOwnPtr<InputType> MonthInputType::create(HTMLInputElement* element)
51 return adoptPtr(new MonthInputType(element));
54 const AtomicString& MonthInputType::formControlType() const
56 return InputTypeNames::month();
59 DateComponents::Type MonthInputType::dateType() const
61 return DateComponents::Month;
64 double MonthInputType::valueAsDate() const
67 if (!parseToDateComponents(element()->value(), &date))
68 return DateComponents::invalidMilliseconds();
69 double msec = date.millisecondsSinceEpoch();
70 ASSERT(isfinite(msec));
74 String MonthInputType::serializeWithMilliseconds(double value) const
77 if (!date.setMillisecondsSinceEpochForMonth(value))
79 return serializeWithComponents(date);
82 double MonthInputType::defaultValueForStepUp() const
84 double current = currentTimeMS();
85 double utcOffset = calculateUTCOffset();
86 double dstOffset = calculateDSTOffset(current, utcOffset);
87 int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
88 current += offset * msPerMinute;
91 date.setMillisecondsSinceEpochForMonth(current);
92 double months = date.monthsSinceEpoch();
93 ASSERT(isfinite(months));
97 double MonthInputType::minimum() const
99 return parseToDouble(element()->fastGetAttribute(minAttr), DateComponents::minimumMonth());
102 double MonthInputType::maximum() const
104 return parseToDouble(element()->fastGetAttribute(maxAttr), DateComponents::maximumMonth());
107 double MonthInputType::defaultStep() const
109 return monthDefaultStep;
112 double MonthInputType::stepScaleFactor() const
114 return monthStepScaleFactor;
117 bool MonthInputType::parsedStepValueShouldBeInteger() const
122 double MonthInputType::parseToDouble(const String& src, double defaultValue) const
125 if (!parseToDateComponents(src, &date))
127 double months = date.monthsSinceEpoch();
128 ASSERT(isfinite(months));
132 bool MonthInputType::parseToDateComponentsInternal(const UChar* characters, unsigned length, DateComponents* out) const
136 return out->parseMonth(characters, length, 0, end) && end == length;
139 bool MonthInputType::setMillisecondToDateComponents(double value, DateComponents* date) const
142 return date->setMonthsSinceEpoch(value);
145 } // namespace WebCore