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#if ENABLE(INPUT_TYPE_TIME)
33#include "TimeInputType.h"
34
35#include "DateComponents.h"
36#include "HTMLInputElement.h"
37#include "HTMLNames.h"
38#include "InputTypeNames.h"
39#include <wtf/CurrentTime.h>
40#include <wtf/DateMath.h>
41#include <wtf/MathExtras.h>
42#include <wtf/PassOwnPtr.h>
43
44namespace WebCore {
45
46using namespace HTMLNames;
47
48static const int timeDefaultStep = 60;
49static const int timeDefaultStepBase = 0;
50static const int timeStepScaleFactor = 1000;
51
52TimeInputType::TimeInputType(HTMLInputElement*  element)
53    : BaseTimeInputType(element)
54{
55}
56
57PassOwnPtr<InputType> TimeInputType::create(HTMLInputElement* element)
58{
59    return adoptPtr(new TimeInputType(element));
60}
61
62void TimeInputType::attach()
63{
64    observeFeatureIfVisible(FeatureObserver::InputTypeTime);
65}
66
67const AtomicString& TimeInputType::formControlType() const
68{
69    return InputTypeNames::time();
70}
71
72DateComponents::Type TimeInputType::dateType() const
73{
74    return DateComponents::Time;
75}
76
77Decimal TimeInputType::defaultValueForStepUp() const
78{
79    double current = currentTimeMS();
80    double utcOffset = calculateUTCOffset();
81    double dstOffset = calculateDSTOffset(current, utcOffset);
82    int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
83    current += offset * msPerMinute;
84
85    DateComponents date;
86    date.setMillisecondsSinceMidnight(current);
87    double milliseconds = date.millisecondsSinceEpoch();
88    ASSERT(std::isfinite(milliseconds));
89    return Decimal::fromDouble(milliseconds);
90}
91
92StepRange TimeInputType::createStepRange(AnyStepHandling anyStepHandling) const
93{
94    DEFINE_STATIC_LOCAL(const StepRange::StepDescription, stepDescription, (timeDefaultStep, timeDefaultStepBase, timeStepScaleFactor, StepRange::ScaledStepValueShouldBeInteger));
95
96    const Decimal stepBase = parseToNumber(element()->fastGetAttribute(minAttr), 0);
97    const Decimal minimum = parseToNumber(element()->fastGetAttribute(minAttr), Decimal::fromDouble(DateComponents::minimumTime()));
98    const Decimal maximum = parseToNumber(element()->fastGetAttribute(maxAttr), Decimal::fromDouble(DateComponents::maximumTime()));
99    const Decimal step = StepRange::parseStep(anyStepHandling, stepDescription, element()->fastGetAttribute(stepAttr));
100    return StepRange(stepBase, minimum, maximum, step, stepDescription);
101}
102
103bool TimeInputType::parseToDateComponentsInternal(const UChar* characters, unsigned length, DateComponents* out) const
104{
105    ASSERT(out);
106    unsigned end;
107    return out->parseTime(characters, length, 0, end) && end == length;
108}
109
110bool TimeInputType::setMillisecondToDateComponents(double value, DateComponents* date) const
111{
112    ASSERT(date);
113    return date->setMillisecondsSinceMidnight(value);
114}
115
116bool TimeInputType::isTimeField() const
117{
118    return true;
119}
120
121} // namespace WebCore
122
123#endif
124