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// Copyright (C) 2011, John 'Warthog9' Hawley <warthog9@eaglescrag.net>
// 2011, Jakub Narebski <jnareb@gmail.com>
/**
* @fileOverview Manipulate dates in gitweb output, adjusting timezone
* @license GPLv2 or later
*/
/**
* Get common timezone and adjust dates to use this common timezone.
*
* This function is called during onload event (added to window.onload).
*
* @param {String} tzDefault: default timezone, if there is no cookie
* @param {String} tzCookieName: name of cookie to store timezone
* @param {String} tzClassName: denotes elements with date to be adjusted
*/
function onloadTZSetup(tzDefault, tzCookieName, tzClassName) {
var tzCookie = getCookie(tzCookieName);
var tz = tzCookie ? tzCookie : tzDefault;
// server-side of gitweb produces datetime in UTC,
// so if tz is 'utc' there is no need for changes
if (tz !== 'utc') {
fixDatetimeTZ(tz, tzClassName);
}
}
/**
* Replace RFC-2822 dates contained in SPAN elements with tzClassName
* CSS class with equivalent dates in given timezone.
*
* @param {String} tz: numeric timezone in '(-|+)HHMM' format, or 'utc', or 'local'
* @param {String} tzClassName: specifies elements to be changed
*/
function fixDatetimeTZ(tz, tzClassName) {
// sanity check, method should be ensured by common-lib.js
if (!document.getElementsByClassName) {
return;
}
// translate to timezone in '(-|+)HHMM' format
tz = normalizeTimezoneInfo(tz);
// NOTE: result of getElementsByClassName should probably be cached
var classesFound = document.getElementsByClassName(tzClassName, "span");
for (var i = 0, len = classesFound.length; i < len; i++) {
var curElement = classesFound[i];
// we use *.firstChild.data (W3C DOM) instead of *.innerHTML
// as the latter doesn't always work everywhere in every browser
var epoch = parseRFC2822Date(curElement.firstChild.data);
var adjusted = formatDateRFC2882(epoch, tz);
curElement.firstChild.data = adjusted;
}
}
/* end of adjust-timezone.js */
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