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 "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 49 PassOwnPtr<InputType> TimeInputType::create(HTMLInputElement* element) 50 { 51 return adoptPtr(new TimeInputType(element)); 52 } 53 54 const AtomicString& TimeInputType::formControlType() const 55 { 56 return InputTypeNames::time(); 57 } 58 59 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 74 double TimeInputType::minimum() const 75 { 76 return parseToDouble(element()->fastGetAttribute(minAttr), DateComponents::minimumTime()); 77 } 78 79 double TimeInputType::maximum() const 80 { 81 return parseToDouble(element()->fastGetAttribute(maxAttr), DateComponents::maximumTime()); 82 } 83 84 double TimeInputType::defaultStep() const 85 { 86 return timeDefaultStep; 87 } 88 89 double TimeInputType::stepScaleFactor() const 90 { 91 return timeStepScaleFactor; 92 } 93 94 bool TimeInputType::scaledStepValueShouldBeInteger() const 95 { 96 return true; 97 } 98 99 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 } 105 106 bool TimeInputType::setMillisecondToDateComponents(double value, DateComponents* date) const 107 { 108 ASSERT(date); 109 return date->setMillisecondsSinceMidnight(value); 110 } 111 112 } // namespace WebCore 113
