/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/1.3/dateUtils.js is in qml-module-ubuntu-components 1.3.1918+16.04.20160404-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | /*
* Copyright 2013-2015 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*!
\qmltype dateUtils
\inqmlmodule Ubuntu.Components 1.3
\ingroup ubuntu
\brief Various date utility functions.
*/
.pragma library
/*
Extending Date with few prototypes
*/
Date.msPerDay = 86400e3
Date.msPerWeek = Date.msPerDay * 7
/*!
\qmlmethod Date::midnight()
The function returns a Date object with the current date and hour set to
midnight.
*/
Date.prototype.midnight = function() {
this.setHours(0, 0, 0, 0);
return this;
}
/*!
\qmlmethod Date::getInvalidDate()
The function returns an invalid date object.
Example of use:
\code
var invalidDate = Date.prototype.getInvalidDate.call();
var otherInvalidDate = (new Date()).getInvalidDate();
\endcode
*/
Date.prototype.getInvalidDate = function() {
return new Date(-1, -1);
}
/*!
\qmlmethod Date::isValid()
The function checks whether the date object is a valid one, meaning the year,
month and date fields are positive numbers
*/
Date.prototype.isValid = function() {
if (Object.prototype.toString.call(this) !== "[object Date]") {
return false;
}
return (this.getFullYear() > 0) && (this.getMonth() >= 0) && (this.getDate() > 0);
}
/*!
\qmlmethod Date::daysInMonth()
The function returns the number of days in the month set in the Date object.
*/
Date.prototype.daysInMonth = function() {
return [
31/*an*/, 28/*Feb*/, 31/*Mar*/, 30/*Apr*/, 31/*May*/, 30/*Jun*/,
31/*Jul*/, 31/*Aug*/, 30/*Sep*/, 31/*Oct*/, 30/*Nov*/, 31/*Dec*/
][this.getMonth()] + (this.getMonth() === 1) * this.leapYear();
}
/*!
\qmlmethod Date::leapYear()
The function checks whether the year in the Date object is a leap year or not.
*/
Date.prototype.leapYear = function() {
var year = this.getFullYear();
return year % 400 == 0 || (year % 100 !== 0 && year % 4 == 0);
}
/*!
\qmlmethod Date::monthsTo(date)
The function returns the distance in months (not calendaristic months) between
the Date object and the given one as parameter.
*/
Date.prototype.monthsTo = function(target) {
return target.getMonth() - this.getMonth() + (12 * (target.getFullYear() - this.getFullYear()));
}
/*!
\qmlmethod Date::daysTo(date)
Same as monthsTo, but returns the distance in days.
*/
Date.prototype.daysTo = function(target) {
return !target.isValid() ? 0 : Math.ceil((target - this) / Date.msPerDay);
}
/*!
\qmlmethod Date::hoursTo(date)
Same as monthsTo, but returns the distance in hours.
*/
Date.prototype.hoursTo = function(target) {
return !target.isValid() ? 0 : Math.ceil((target.getTime() - this.getTime()) / (1000 * 60 * 60));
}
/*!
\qmlmethod Date::minutesTo(date)
Same as monthsTo, but returns the distance in minutes.
*/
Date.prototype.minutesTo = function(target) {
return !target.isValid() ? 0 : Math.ceil((target.getTime() - this.getTime()) / (1000 * 60));
}
/*!
\qmlmethod Date::secondsTo(date)
Same as monthsTo, but returns the distance in seconds.
*/
Date.prototype.secondsTo = function(target) {
return !target.isValid() ? 0 : Math.ceil((target.getTime() - this.getTime()) / 1000);
}
/*!
\qmlmethod Date::getWeek()
The function returns the week number of the date stored in the object.
*/
Date.prototype.getWeek = function() {
// Copy date so don't modify original
var date = new Date(this);
date.setHours(0, 0, 0, 0);
// Set to nearest Thursday: current date + 4 - current day number
// Make Sunday's day number 7
date.setDate(date.getDate() + 4 - (date.getDay() || 7));
// Get first day of year
var yearStart = new Date(date.getFullYear(), 0, 1);
// Calculate full weeks to nearest Thursday
var weekNo = Math.ceil((((date - yearStart) / 86400000) + 1) / 7);
// Return array of year and week number
return weekNo;
}
|