232 lines
8.0 KiB
JavaScript
232 lines
8.0 KiB
JavaScript
/*
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Copyright 2011, Google Inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following disclaimer
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in the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Google Inc. nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* The following code has been adapted from the Simile Ajax library at
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* http://code.google.com/p/simile-widgets/
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*/
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/*
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* (c) Copyright The SIMILE Project 2008. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Note: JQuery, www.jquery.com is included in this distribution. It is
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* covered by its own license:
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*
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* Copyright (c) 2008 John Resig (jquery.com)
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* Dual licensed under the MIT (MIT-LICENSE.txt)
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* and GPL (GPL-LICENSE.txt) licenses.
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*/
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DateTimeUtil = {};
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DateTimeUtil._dateRegexp = new RegExp(
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"^(-?)([0-9]{4})(" + [
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"(-?([0-9]{2})(-?([0-9]{2}))?)", // -month-dayOfMonth
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"(-?([0-9]{3}))", // -dayOfYear
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"(-?W([0-9]{2})(-?([1-7]))?)" // -Wweek-dayOfWeek
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].join("|") + ")?$"
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);
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DateTimeUtil._timezoneRegexp = new RegExp(
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"Z|(([-+])([0-9]{2})(:?([0-9]{2}))?)$"
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);
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DateTimeUtil._timeRegexp = new RegExp(
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"^([0-9]{2})(:?([0-9]{2})(:?([0-9]{2})(\.([0-9]+))?)?)?$"
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);
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DateTimeUtil.setIso8601Date = function(dateObject, string) {
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/*
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* This function has been adapted from dojo.date, v.0.3.0
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* http://dojotoolkit.org/.
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*/
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var d = string.match(DateTimeUtil._dateRegexp);
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if(!d) {
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throw new Error($.i18n('core-util-enc/invalid-date')+": " + string);
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}
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var sign = (d[1] == "-") ? -1 : 1; // BC or AD
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var year = sign * d[2];
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var month = d[5];
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var date = d[7];
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var dayofyear = d[9];
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var week = d[11];
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var dayofweek = (d[13]) ? d[13] : 1;
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dateObject.setUTCFullYear(year);
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if (dayofyear) {
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dateObject.setUTCMonth(0);
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dateObject.setUTCDate(Number(dayofyear));
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} else if (week) {
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dateObject.setUTCMonth(0);
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dateObject.setUTCDate(1);
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var gd = dateObject.getUTCDay();
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var day = (gd) ? gd : 7;
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var offset = Number(dayofweek) + (7 * Number(week));
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if (day <= 4) {
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dateObject.setUTCDate(offset + 1 - day);
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} else {
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dateObject.setUTCDate(offset + 8 - day);
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}
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} else {
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if (month) {
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dateObject.setUTCDate(1);
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dateObject.setUTCMonth(month - 1);
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}
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if (date) {
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dateObject.setUTCDate(date);
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}
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}
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return dateObject;
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};
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/**
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* Takes a date object and a string containing an ISO 8601 time and sets the
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* the time using information parsed from the string. Note that this method
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* does not parse any date information.
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*
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* @param {Date} dateObject the date object to modify
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* @param {String} string an ISO 8601 string to parse
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* @return {Date} the modified date object
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*/
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DateTimeUtil.setIso8601Time = function (dateObject, string) {
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/*
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* This function has been adapted from dojo.date, v.0.3.0
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* http://dojotoolkit.org/.
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*/
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var d = string.match(DateTimeUtil._timeRegexp);
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if(!d) {
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SimileAjax.Debug.warn($.i18n('core-util-enc/invalid-date')+": " + string);
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return false;
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}
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var hours = d[1];
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var mins = Number((d[3]) ? d[3] : 0);
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var secs = (d[5]) ? d[5] : 0;
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var ms = d[7] ? (Number("0." + d[7]) * 1000) : 0;
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dateObject.setUTCHours(hours);
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dateObject.setUTCMinutes(mins);
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dateObject.setUTCSeconds(secs);
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dateObject.setUTCMilliseconds(ms);
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return dateObject;
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};
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/**
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* The timezone offset in minutes in the user's browser.
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* @type Number
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*/
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DateTimeUtil.timezoneOffset = new Date().getTimezoneOffset();
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/**
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* Takes a date object and a string containing an ISO 8601 date and time and
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* sets the date object using information parsed from the string.
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*
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* @param {Date} dateObject the date object to modify
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* @param {String} string an ISO 8601 string to parse
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* @return {Date} the modified date object
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*/
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DateTimeUtil.setIso8601 = function (dateObject, string){
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/*
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* This function has been adapted from dojo.date, v.0.3.0
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* http://dojotoolkit.org/.
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*/
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var offset = null;
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var comps = (string.indexOf("T") == -1) ? string.split(" ") : string.split("T");
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DateTimeUtil.setIso8601Date(dateObject, comps[0]);
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if (comps.length == 2) {
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// first strip timezone info from the end
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var d = comps[1].match(DateTimeUtil._timezoneRegexp);
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if (d) {
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if (d[0] == 'Z') {
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offset = 0;
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} else {
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offset = (Number(d[3]) * 60) + Number(d[5]);
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offset *= ((d[2] == '-') ? 1 : -1);
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}
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comps[1] = comps[1].substr(0, comps[1].length - d[0].length);
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}
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DateTimeUtil.setIso8601Time(dateObject, comps[1]);
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}
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if (offset == null) {
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offset = dateObject.getTimezoneOffset(); // local time zone if no tz info
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}
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dateObject.setTime(dateObject.getTime() + offset * 60000);
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return dateObject;
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};
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/**
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* Takes a string containing an ISO 8601 date and returns a newly instantiated
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* date object with the parsed date and time information from the string.
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*
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* @param {String} string an ISO 8601 string to parse
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* @return {Date} a new date object created from the string
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*/
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DateTimeUtil.parseIso8601DateTime = function (string) {
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try {
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return DateTimeUtil.setIso8601(new Date(0), string);
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} catch (e) {
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return null;
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}
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}; |