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
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "TimeInputType.h"
33
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>
41
42 namespace WebCore {
43
44 using namespace HTMLNames;
45
46 static const double timeDefaultStep = 60.0;
47 static const double timeStepScaleFactor = 1000.0;
48
create(HTMLInputElement * element)49 PassOwnPtr<InputType> TimeInputType::create(HTMLInputElement* element)
50 {
51 return adoptPtr(new TimeInputType(element));
52 }
53
formControlType() const54 const AtomicString& TimeInputType::formControlType() const
55 {
56 return InputTypeNames::time();
57 }
58
defaultValueForStepUp() const59 double TimeInputType::defaultValueForStepUp() const
60 {
61 double current = currentTimeMS();
62 double utcOffset = calculateUTCOffset();
63 double dstOffset = calculateDSTOffset(current, utcOffset);
64 int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
65 current += offset * msPerMinute;
66
67 DateComponents date;
68 date.setMillisecondsSinceMidnight(current);
69 double milliseconds = date.millisecondsSinceEpoch();
70 ASSERT(isfinite(milliseconds));
71 return milliseconds;
72 }
73
minimum() const74 double TimeInputType::minimum() const
75 {
76 return parseToDouble(element()->fastGetAttribute(minAttr), DateComponents::minimumTime());
77 }
78
maximum() const79 double TimeInputType::maximum() const
80 {
81 return parseToDouble(element()->fastGetAttribute(maxAttr), DateComponents::maximumTime());
82 }
83
defaultStep() const84 double TimeInputType::defaultStep() const
85 {
86 return timeDefaultStep;
87 }
88
stepScaleFactor() const89 double TimeInputType::stepScaleFactor() const
90 {
91 return timeStepScaleFactor;
92 }
93
scaledStepValueShouldBeInteger() const94 bool TimeInputType::scaledStepValueShouldBeInteger() const
95 {
96 return true;
97 }
98
parseToDateComponentsInternal(const UChar * characters,unsigned length,DateComponents * out) const99 bool TimeInputType::parseToDateComponentsInternal(const UChar* characters, unsigned length, DateComponents* out) const
100 {
101 ASSERT(out);
102 unsigned end;
103 return out->parseTime(characters, length, 0, end) && end == length;
104 }
105
setMillisecondToDateComponents(double value,DateComponents * date) const106 bool TimeInputType::setMillisecondToDateComponents(double value, DateComponents* date) const
107 {
108 ASSERT(date);
109 return date->setMillisecondsSinceMidnight(value);
110 }
111
112 } // namespace WebCore
113