/* Timetravel, version [0.2.0]
Documentation: Wikipedia:WikiProject User scripts/Scripts/TimeTraveller
Notes:
* Does not take into account:
** Old versions of templates, images
** Moved page titles
** Renamed users
** Time-sensitive magic words
*/
//to be localised
tt_currentrevision = 'Current revision';
tt_history='History';
//
// this code deals with the first access to an old page
// We have the revision id, but not the timetravel timestamp --> need to find it and set tt_timetravel
//
if(queryString('oldid') && !queryString('timetravel') && !queryString('diff') && mw.config.get('wgAction') == 'view') addOnloadHook(addTimetravelButton)
function addTimetravelButton() {
var url = mw.config.get('wgServer') + mw.config.get('wgScriptPath') + '/api.php?maxage=300&smaxage=300&action=query&prop=revisions&rvprop=timestamp|ids&format=json&callback=addTimetravelCB&revids=' + queryString('oldid');
mw.loader.load(url);
}
var tt_timetravel=false;
function addTimetravelCB(obj) {
if(!obj['query'] || !obj['query']['pages'] || !obj['query']['pages'][mw.config.get('wgArticleId')]) return
var rev = obj['query']['pages'][mw.config.get('wgArticleId')]['revisions'];
var ts ='';
for(var i in rev) {
if(rev[i]['revid'] == queryString('oldid')) {
ts = rev[i]['timestamp'];
}
}
tt_timetravel=ts;
engageTimetravelLinks();
}
//
// this code deals with the old pages accessed from another old one
// We thus have the tt_timetravel parameter
//
if(queryString('timetravel') && mw.config.get('wgAction') == 'view') addOnloadHook(engageTimetravelLinks)
// this is the routine called by the 2 previous cases
function engageTimetravelLinks() {
if(!tt_timetravel) tt_timetravel=queryString('timetravel');
appendCSS('a.timetravel { color:#00ff00 !important;} a.ttused {color:#ff0000 !important;}');
engageTT2 (document.getElementById('bodyContent') || document.getElementById('content') || document.body, "A");
engageTT2 (document.getElementById('p-cactions'), "B");
}
function engageTT2 (docobj, tag) {
if (!docobj) return;
var a = docobj.getElementsByTagName('a');
for(var i=0;i<a.length;i++) {
if (tag=='B' && a[i].innerHTML==tt_history) {
a[i].href=a[i].href + '&offset=' + tt_timetravel.replace(/[^0-9]/g,"");
continue
}
// Exclude: catlinks, extiw/external/new/image, diff/oldid/action, special, http/uri, media?, anchors?, imagemap?
if(a[i].className.search(/(extiw|external|new|image)/ig) != -1) continue
if(a[i].href.search(/(\/wiki\/(Category\:|Special\:)|diff\=|oldid\=|action\=|Special\:Cite)/ig) != -1) continue
if(a[i].innerHTML==tt_currentrevision) continue;
var link = a[i].href;
link = link.replace(mw.config.get('wgServer') + mw.config.get('wgArticlePath').replace(/\$1/,''),'');
if(link.indexOf('#') != -1) link = link.substr(0,link.indexOf('#'));
if(link.search(/(http|https|file|javascript)\:/ig) == 0) continue
a[i].onmouseover=timetravel;
// a[i].className += ' timetravel';
a[i].id = 'ttlink-' + tag + i;
}
}
//
// this code deals with the mouseOver an anchor
//
var tt_anchor, tt_id; // this may create a problem if several mouseover are fired before they can be fully handled
function timetravel(e) {
//first, let's find the anchor
var targ;
if (!e) var e = window.event;
if (e.target) targ = e.target;
else if (e.srcElement) targ = e.srcElement;
if (targ.nodeType == 3) // defeat Safari bug
targ = targ.parentNode;
var a = targ;
var link = a.href;
// no need to do anything else if it already has timetravel
if (link.indexOf('timetravel=') != -1) {
return
}
// block the href until updated
a.className += ' ttused';
if (link.indexOf('javascript:void("') !=-1) { // this happens when the call back does not happen! Remove it.
link=link.substr( ('javascript:void("').length, link.length- ('javascript:void("').length- ('");').length);
} else {
a.href = 'javascript:void("' + a.href + '");';
}
//set the global variables
link = link.replace(mw.config.get('wgServer') + mw.config.get('wgArticlePath').replace(/\$1/,''),'');
link = link.replace (/_/g, ' ');
if(link.indexOf('#') != -1) {
tt_anchor=link.substr(link.indexOf('#'))
link = link.substr(0,link.indexOf('#'));
} else {tt_anchor=''};
tt_id=a.id;
//call the API
var url = mw.config.get('wgServer') + mw.config.get('wgScriptPath') + '/api.php?maxage=300&smaxage=300&action=query&prop=revisions&&rvprop=ids&rvlimit=1&rvstart=' + tt_timetravel + '&format=json&callback=timetravelCB&titles=' + encodeURIComponent(decodeURIComponent(link));
url+= '&rnd=' + Math.random() // add a random element to make sure it is called
mw.loader.load(url);
}
function timetravelCB(obj) {
var a = document.getElementById(tt_id);
if(!obj['query'] || !obj['query']['pages']) return
var pages = obj['query']['pages'];
var rev;
var title = '';
for(var i in pages) {
rev = pages[i]['revisions'];
title = pages[i]['title'];
}
if(!rev) {
//unblock the link
url=a.href.substr( ('javascript:void("').length, a.href.length- ('javascript:void("').length- ('");').length);
a.href=url;
a.className ='';
// alert('No such page, or no revisions found that old.\n');
} else {
a.onmouseover=''; // no need to fire this anymore
var id = 0;
for(var i in rev) {
id = rev[i]['revid'];
}
if(id != 0) {
var url = mw.config.get('wgServer') + mw.config.get('wgScript') + '?title=' + encodeURIComponent(title) + '&oldid=' + id + '&timetravel=' + tt_timetravel +tt_anchor ;
a.href = url;
a.className ='';
}
}
}
function queryString(p) {
var re = RegExp('[&?#]' + p + '=([^&#]*)');
var matches;
if (matches = re.exec(document.location)) {
try {
return decodeURI(matches[1]);
} catch (e) {
}
}
return null;
}
//
// Add links to timestamps in talk pages
//
if (mw.config.get('wgAction') == 'view') addOnloadHook(addDateLinks);
function addDateLinks() {
var newContent = document.getElementById('bodyContent');
if (! newContent || ! newContent.innerHTML || newContent.innerHTML=='') return;
newContent=newContent.innerHTML;
var tt_regDate= /(\d?\d):(\d\d), (\d?\d) (January|February|March|April|May|June|July|August|September|October|November|December|Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Oct|Nov|Dec) (\d\d\d\d) \(UTC\)/g;
var dates= newContent.match(tt_regDate);
if (!dates || ! dates.length) return;
for (var j=0;j<dates.length;j++) {
tt_regDate.lastIndex=0;
var a = tt_regDate.exec(dates[j]);
if (!a) continue;
var dateLink=a[5] +'-'+ tt_2(a[4]) +'-'+ tt_2(a[3]) +'T'+ tt_2(a[1]) +':'+ tt_2(a[2]) + ':59Z';
dateLink="<a href=javascript:void('" + dateLink +"') id='" + dateLink +"' onmouseover='getURLofThisPageFor("+ '"'+dateLink+'"'+ ")'>"+ dates[j]+ "</a>";
var r= dates[j].replace("(","\\(");
r = r.replace(")","\\)");
r = new RegExp(r, "g");
newContent=newContent.replace(r, dateLink);
}
document.getElementById('bodyContent').innerHTML=newContent
};
//
// this code deals with the mouseOver an anchor
//
var tt_tentativeDate;
function getURLofThisPageFor(aDate) {
//first, let's find the anchor
var a=document.getElementById(aDate);
if (!a) return;
// no need to do anything else if it already has timetravel
if (a.href.indexOf('timetravel=') != -1) return;
//set the global variables
tt_tentativeDate=aDate;
//call the API
var pageName= mw.config.get('wgPageName').replace (/()\/Archive_[\d]*/,'$1');
var url = mw.config.get('wgServer') + mw.config.get('wgScriptPath') + '/api.php?maxage=300&smaxage=300&action=query&prop=revisions&&rvprop=ids&rvlimit=1&rvstart=' + aDate + '&format=json&callback=getURLofThisPageCB&titles=' + encodeURIComponent(decodeURIComponent(pageName));
url+= '&rnd=' + Math.random() // add a random element to make sure it is called
mw.loader.load(url);
};
function getURLofThisPageCB (obj) {
if (!tt_tentativeDate) return;
var a = document.getElementById(tt_tentativeDate);
if (!a) return;
if(!obj['query'] || !obj['query']['pages']) return
var pages = obj['query']['pages'];
var rev;
var title='';
for (var i in pages) {
rev = pages[i]['revisions'];
title = pages[i]['title'];
};
if(!rev) {
//unblock the link
url=a.href.substr( ('javascript:void("').length, a.href.length- ('javascript:void("').length- ('");').length);
a.href=url;
a.className ='';
// alert('No such page, or no revisions found that old.\n');
} else {
a.onmouseover=''; // no need to fire this anymore
var id = 0;
for (var i=0;i<rev.length;i++) {
id = rev[i]['revid'];
};
title=title.replace (/()\/Archive_[\d]*/,'$1');
if(id != 0) {
var url = mw.config.get('wgServer') + mw.config.get('wgScript') + '?title=' + encodeURIComponent(title) + '&oldid=' + id + '&timetravel=' + tt_tentativeDate ;
a.href = url;
a.className ='';
}
}
};
function tt_2 (s) {
switch (s) {
case '1': return '01';
case '2': return '02';
case '3': return '03';
case '4': return '04';
case '5': return '05';
case '6': return '06';
case '7': return '07';
case '8': return '08';
case '9': return '09';
case 'January': return '01';
case 'February': return '02';
case 'March': return '03';
case 'April': return '04';
case 'May': return '05';
case 'June': return '06';
case 'July': return '07';
case 'August': return '08';
case 'September': return '09';
case 'October': return '10';
case 'November': return '11';
case 'December': return '12';
case 'Jan': return '01';
case 'Feb': return '02';
case 'Mar': return '03';
case 'Apr': return '04';
case 'May': return '05';
case 'Jun': return '06';
case 'Jul': return '07';
case 'Aug': return '08';
case 'Sep': return '09';
case 'Oct': return '10';
case 'Nov': return '11';
case 'Dec': return '12';
default: return s
}
}
