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#if ENABLE(INPUT_TYPE_MONTH)
33#include "MonthInputType.h"
34
35#include "HTMLInputElement.h"
36#include "HTMLNames.h"
37#include "InputTypeNames.h"
38#include <wtf/DateMath.h>
39#include <wtf/MathExtras.h>
40#include <wtf/NeverDestroyed.h>
41
42namespace WebCore {
43
44using namespace HTMLNames;
45
46static const int monthDefaultStep = 1;
47static const int monthDefaultStepBase = 0;
48static const int monthStepScaleFactor = 1;
49static const StepRange::StepDescription monthStepDescription { monthDefaultStep, monthDefaultStepBase, monthStepScaleFactor, StepRange::ParsedStepValueShouldBeInteger };
50
51const AtomicString& MonthInputType::formControlType() const
52{
53 return InputTypeNames::month();
54}
55
56DateComponents::Type MonthInputType::dateType() const
57{
58 return DateComponents::Month;
59}
60
61double MonthInputType::valueAsDate() const
62{
63 ASSERT(element());
64 DateComponents date;
65 if (!parseToDateComponents(element()->value(), &date))
66 return DateComponents::invalidMilliseconds();
67 double msec = date.millisecondsSinceEpoch();
68 ASSERT(std::isfinite(msec));
69 return msec;
70}
71
72String MonthInputType::serializeWithMilliseconds(double value) const
73{
74 DateComponents date;
75 if (!date.setMillisecondsSinceEpochForMonth(value))
76 return String();
77 return serializeWithComponents(date);
78}
79
80Decimal MonthInputType::defaultValueForStepUp() const
81{
82 double current = WallTime::now().secondsSinceEpoch().milliseconds();
83 int offset = calculateLocalTimeOffset(current).offset / msPerMinute;
84 current += offset * msPerMinute;
85
86 DateComponents date;
87 date.setMillisecondsSinceEpochForMonth(current);
88 double months = date.monthsSinceEpoch();
89 ASSERT(std::isfinite(months));
90 return Decimal::fromDouble(months);
91}
92
93StepRange MonthInputType::createStepRange(AnyStepHandling anyStepHandling) const
94{
95 ASSERT(element());
96 const Decimal stepBase = parseToNumber(element()->attributeWithoutSynchronization(minAttr), Decimal::fromDouble(monthDefaultStepBase));
97 const Decimal minimum = parseToNumber(element()->attributeWithoutSynchronization(minAttr), Decimal::fromDouble(DateComponents::minimumMonth()));
98 const Decimal maximum = parseToNumber(element()->attributeWithoutSynchronization(maxAttr), Decimal::fromDouble(DateComponents::maximumMonth()));
99 const Decimal step = StepRange::parseStep(anyStepHandling, monthStepDescription, element()->attributeWithoutSynchronization(stepAttr));
100 return StepRange(stepBase, RangeLimitations::Valid, minimum, maximum, step, monthStepDescription);
101}
102
103Decimal MonthInputType::parseToNumber(const String& src, const Decimal& defaultValue) const
104{
105 DateComponents date;
106 if (!parseToDateComponents(src, &date))
107 return defaultValue;
108 double months = date.monthsSinceEpoch();
109 ASSERT(std::isfinite(months));
110 return Decimal::fromDouble(months);
111}
112
113bool MonthInputType::parseToDateComponentsInternal(const UChar* characters, unsigned length, DateComponents* out) const
114{
115 ASSERT(out);
116 unsigned end;
117 return out->parseMonth(characters, length, 0, end) && end == length;
118}
119
120bool MonthInputType::setMillisecondToDateComponents(double value, DateComponents* date) const
121{
122 ASSERT(date);
123 return date->setMonthsSinceEpoch(value);
124}
125
126bool MonthInputType::isMonthField() const
127{
128 return true;
129}
130
131} // namespace WebCore
132
133#endif
134