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/forms/BaseDateAndTimeInputType.h"
33
34 #include <limits>
35 #include "core/html/HTMLInputElement.h"
36 #include "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
42 namespace WebCore {
43
44 using blink::WebLocalizedString;
45 using namespace HTMLNames;
46
47 static const int msecPerMinute = 60 * 1000;
48 static const int msecPerSecond = 1000;
49
valueAsDate() const50 double BaseDateAndTimeInputType::valueAsDate() const
51 {
52 return valueAsDouble();
53 }
54
setValueAsDate(double value,ExceptionState &) const55 void BaseDateAndTimeInputType::setValueAsDate(double value, ExceptionState&) const
56 {
57 element().setValue(serializeWithMilliseconds(value));
58 }
59
valueAsDouble() const60 double BaseDateAndTimeInputType::valueAsDouble() const
61 {
62 const Decimal value = parseToNumber(element().value(), Decimal::nan());
63 return value.isFinite() ? value.toDouble() : DateComponents::invalidMilliseconds();
64 }
65
setValueAsDouble(double newValue,TextFieldEventBehavior eventBehavior,ExceptionState & exceptionState) const66 void BaseDateAndTimeInputType::setValueAsDouble(double newValue, TextFieldEventBehavior eventBehavior, ExceptionState& exceptionState) const
67 {
68 setValueAsDecimal(Decimal::fromDouble(newValue), eventBehavior, exceptionState);
69 }
70
typeMismatchFor(const String & value) const71 bool BaseDateAndTimeInputType::typeMismatchFor(const String& value) const
72 {
73 return !value.isEmpty() && !parseToDateComponents(value, 0);
74 }
75
typeMismatch() const76 bool BaseDateAndTimeInputType::typeMismatch() const
77 {
78 return typeMismatchFor(element().value());
79 }
80
rangeOverflowText(const Decimal & maximum) const81 String BaseDateAndTimeInputType::rangeOverflowText(const Decimal& maximum) const
82 {
83 return locale().queryString(WebLocalizedString::ValidationRangeOverflowDateTime, localizeValue(serialize(maximum)));
84 }
85
rangeUnderflowText(const Decimal & minimum) const86 String BaseDateAndTimeInputType::rangeUnderflowText(const Decimal& minimum) const
87 {
88 return locale().queryString(WebLocalizedString::ValidationRangeUnderflowDateTime, localizeValue(serialize(minimum)));
89 }
90
defaultValueForStepUp() const91 Decimal BaseDateAndTimeInputType::defaultValueForStepUp() const
92 {
93 double ms = currentTimeMS();
94 double utcOffset = calculateUTCOffset();
95 double dstOffset = calculateDSTOffset(ms, utcOffset);
96 int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
97 return Decimal::fromDouble(ms + (offset * msPerMinute));
98 }
99
isSteppable() const100 bool BaseDateAndTimeInputType::isSteppable() const
101 {
102 return true;
103 }
104
parseToNumber(const String & source,const Decimal & defaultValue) const105 Decimal BaseDateAndTimeInputType::parseToNumber(const String& source, const Decimal& defaultValue) const
106 {
107 DateComponents date;
108 if (!parseToDateComponents(source, &date))
109 return defaultValue;
110 double msec = date.millisecondsSinceEpoch();
111 ASSERT(std::isfinite(msec));
112 return Decimal::fromDouble(msec);
113 }
114
parseToDateComponents(const String & source,DateComponents * out) const115 bool BaseDateAndTimeInputType::parseToDateComponents(const String& source, DateComponents* out) const
116 {
117 if (source.isEmpty())
118 return false;
119 DateComponents ignoredResult;
120 if (!out)
121 out = &ignoredResult;
122 return parseToDateComponentsInternal(source, out);
123 }
124
serialize(const Decimal & value) const125 String BaseDateAndTimeInputType::serialize(const Decimal& value) const
126 {
127 if (!value.isFinite())
128 return String();
129 DateComponents date;
130 if (!setMillisecondToDateComponents(value.toDouble(), &date))
131 return String();
132 return serializeWithComponents(date);
133 }
134
serializeWithComponents(const DateComponents & date) const135 String BaseDateAndTimeInputType::serializeWithComponents(const DateComponents& date) const
136 {
137 Decimal step;
138 if (!element().getAllowedValueStep(&step))
139 return date.toString();
140 if (step.remainder(msecPerMinute).isZero())
141 return date.toString(DateComponents::None);
142 if (step.remainder(msecPerSecond).isZero())
143 return date.toString(DateComponents::Second);
144 return date.toString(DateComponents::Millisecond);
145 }
146
serializeWithMilliseconds(double value) const147 String BaseDateAndTimeInputType::serializeWithMilliseconds(double value) const
148 {
149 return serialize(Decimal::fromDouble(value));
150 }
151
localizeValue(const String & proposedValue) const152 String BaseDateAndTimeInputType::localizeValue(const String& proposedValue) const
153 {
154 DateComponents date;
155 if (!parseToDateComponents(proposedValue, &date))
156 return proposedValue;
157
158 String localized = element().locale().formatDateTime(date);
159 return localized.isEmpty() ? proposedValue : localized;
160 }
161
visibleValue() const162 String BaseDateAndTimeInputType::visibleValue() const
163 {
164 return localizeValue(element().value());
165 }
166
sanitizeValue(const String & proposedValue) const167 String BaseDateAndTimeInputType::sanitizeValue(const String& proposedValue) const
168 {
169 return typeMismatchFor(proposedValue) ? emptyString() : proposedValue;
170 }
171
supportsReadOnly() const172 bool BaseDateAndTimeInputType::supportsReadOnly() const
173 {
174 return true;
175 }
176
shouldRespectListAttribute()177 bool BaseDateAndTimeInputType::shouldRespectListAttribute()
178 {
179 return true;
180 }
181
valueMissing(const String & value) const182 bool BaseDateAndTimeInputType::valueMissing(const String& value) const
183 {
184 return element().isRequired() && value.isEmpty();
185 }
186
shouldShowFocusRingOnMouseFocus() const187 bool BaseDateAndTimeInputType::shouldShowFocusRingOnMouseFocus() const
188 {
189 return true;
190 }
191
192 } // namespace WebCore
193