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      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/TimeInputType.h"
     33 
     34 #include "core/HTMLNames.h"
     35 #include "core/InputTypeNames.h"
     36 #include "core/html/HTMLInputElement.h"
     37 #include "core/html/forms/DateTimeFieldsState.h"
     38 #include "platform/DateComponents.h"
     39 #include "platform/text/PlatformLocale.h"
     40 #include "wtf/CurrentTime.h"
     41 #include "wtf/DateMath.h"
     42 #include "wtf/MathExtras.h"
     43 #include "wtf/PassOwnPtr.h"
     44 #include "wtf/text/WTFString.h"
     45 
     46 namespace WebCore {
     47 
     48 using namespace HTMLNames;
     49 
     50 static const int timeDefaultStep = 60;
     51 static const int timeDefaultStepBase = 0;
     52 static const int timeStepScaleFactor = 1000;
     53 
     54 TimeInputType::TimeInputType(HTMLInputElement& element)
     55     : BaseTimeInputType(element)
     56 {
     57 }
     58 
     59 PassRefPtrWillBeRawPtr<InputType> TimeInputType::create(HTMLInputElement& element)
     60 {
     61     return adoptRefWillBeNoop(new TimeInputType(element));
     62 }
     63 
     64 void TimeInputType::countUsage()
     65 {
     66     countUsageIfVisible(UseCounter::InputTypeTime);
     67 }
     68 
     69 const AtomicString& TimeInputType::formControlType() const
     70 {
     71     return InputTypeNames::time;
     72 }
     73 
     74 Decimal TimeInputType::defaultValueForStepUp() const
     75 {
     76     double current = currentTimeMS();
     77     double utcOffset = calculateUTCOffset();
     78     double dstOffset = calculateDSTOffset(current, utcOffset);
     79     int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
     80     current += offset * msPerMinute;
     81 
     82     DateComponents date;
     83     date.setMillisecondsSinceMidnight(current);
     84     double milliseconds = date.millisecondsSinceEpoch();
     85     ASSERT(std::isfinite(milliseconds));
     86     return Decimal::fromDouble(milliseconds);
     87 }
     88 
     89 StepRange TimeInputType::createStepRange(AnyStepHandling anyStepHandling) const
     90 {
     91     DEFINE_STATIC_LOCAL(const StepRange::StepDescription, stepDescription, (timeDefaultStep, timeDefaultStepBase, timeStepScaleFactor, StepRange::ScaledStepValueShouldBeInteger));
     92 
     93     return InputType::createStepRange(anyStepHandling, timeDefaultStepBase, Decimal::fromDouble(DateComponents::minimumTime()), Decimal::fromDouble(DateComponents::maximumTime()), stepDescription);
     94 }
     95 
     96 bool TimeInputType::parseToDateComponentsInternal(const String& string, DateComponents* out) const
     97 {
     98     ASSERT(out);
     99     unsigned end;
    100     return out->parseTime(string, 0, end) && end == string.length();
    101 }
    102 
    103 bool TimeInputType::setMillisecondToDateComponents(double value, DateComponents* date) const
    104 {
    105     ASSERT(date);
    106     return date->setMillisecondsSinceMidnight(value);
    107 }
    108 
    109 bool TimeInputType::isTimeField() const
    110 {
    111     return true;
    112 }
    113 
    114 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
    115 
    116 String TimeInputType::localizeValue(const String& proposedValue) const
    117 {
    118     DateComponents date;
    119     if (!parseToDateComponents(proposedValue, &date))
    120         return proposedValue;
    121 
    122     Locale::FormatType formatType = shouldHaveSecondField(date) ? Locale::FormatTypeMedium : Locale::FormatTypeShort;
    123 
    124     String localized = element().locale().formatDateTime(date, formatType);
    125     return localized.isEmpty() ? proposedValue : localized;
    126 }
    127 
    128 String TimeInputType::formatDateTimeFieldsState(const DateTimeFieldsState& dateTimeFieldsState) const
    129 {
    130     if (!dateTimeFieldsState.hasHour() || !dateTimeFieldsState.hasMinute() || !dateTimeFieldsState.hasAMPM())
    131         return emptyString();
    132     if (dateTimeFieldsState.hasMillisecond() && dateTimeFieldsState.millisecond()) {
    133         return String::format("%02u:%02u:%02u.%03u",
    134             dateTimeFieldsState.hour23(),
    135             dateTimeFieldsState.minute(),
    136             dateTimeFieldsState.hasSecond() ? dateTimeFieldsState.second() : 0,
    137             dateTimeFieldsState.millisecond());
    138     }
    139     if (dateTimeFieldsState.hasSecond() && dateTimeFieldsState.second()) {
    140         return String::format("%02u:%02u:%02u",
    141             dateTimeFieldsState.hour23(),
    142             dateTimeFieldsState.minute(),
    143             dateTimeFieldsState.second());
    144     }
    145     return String::format("%02u:%02u", dateTimeFieldsState.hour23(), dateTimeFieldsState.minute());
    146 }
    147 
    148 void TimeInputType::setupLayoutParameters(DateTimeEditElement::LayoutParameters& layoutParameters, const DateComponents& date) const
    149 {
    150     if (shouldHaveSecondField(date)) {
    151         layoutParameters.dateTimeFormat = layoutParameters.locale.timeFormat();
    152         layoutParameters.fallbackDateTimeFormat = "HH:mm:ss";
    153     } else {
    154         layoutParameters.dateTimeFormat = layoutParameters.locale.shortTimeFormat();
    155         layoutParameters.fallbackDateTimeFormat = "HH:mm";
    156     }
    157     if (!parseToDateComponents(element().fastGetAttribute(minAttr), &layoutParameters.minimum))
    158         layoutParameters.minimum = DateComponents();
    159     if (!parseToDateComponents(element().fastGetAttribute(maxAttr), &layoutParameters.maximum))
    160         layoutParameters.maximum = DateComponents();
    161 }
    162 
    163 bool TimeInputType::isValidFormat(bool hasYear, bool hasMonth, bool hasWeek, bool hasDay, bool hasAMPM, bool hasHour, bool hasMinute, bool hasSecond) const
    164 {
    165     return hasHour && hasMinute && hasAMPM;
    166 }
    167 #endif
    168 
    169 } // namespace WebCore
    170