There are 10 previous versions of this script.
// ==UserScript==
// @name tooltip_tweet_localtime
// @namespace http://twitter.com/towtter
// @description Adds local time tool tip to each tweet
// @include http://twitter.com/*
// @exclude http://twitter.com/account/*
// @exclude http://twitter.com/following
// @exclude http://twitter.com/followers
// @exclude http://twitter.com/login
// @exclude http://twitter.com/invitations/find*
// ==/UserScript==
// strftime function has almost same features as C language, but not support %B %A %j %U %W
function strftime(form, date){
var WDAYNAMES = {
'Sun':0,'Mon':1,'Tue':2,'Wed':3,'Thu':4,'Fri':5,'Sat':6
};
var MONTHNAMES = {
'Jan':0,'Feb':1,'Mar':2,'Apr':3,'May':4,'Jun':5,
'Jul':6,'Aug':7,'Sep':8,'Oct':9,'Nov':10,'Dec':11
};
var dt = date.toString().split(/[\s:]/);
var wDay = dt[0], aMon = dt[1], day = dt[2], year = dt[3], hour = dt[4], min = dt[5], sec = dt[6];
var formats = [];
var result = '';
var i=0;
var format = '';
while (i < form.length) {
var c = form.charAt(i);
if (c == '%') {
format = c;
i += 1;
c = form.charAt(i);
if (c.match(/[a-zA-Z]+/)){
format += c;
formats.push(format);
i += 1;
continue;
}
} else {
formats.push(c);
}
i += 1;
}
for (i=0; i<formats.length; i++){
format = formats[i];
switch (format) {
case '%a':
result += wDay;
break;
case '%b':
result += aMon;
break;
case '%c':
result += day + ' ' + hour + ":" + min + ":" + sec;
break;
case '%d':
result += day;
break;
case '%H':
result += hour;
break;
case '%I':
var h = Number(hour);
if (h > 12) result += (h - 12);
else if (h == 0) result += (h + 12);
else result += h;
break;
case '%m':
var m = MONTHNAMES[aMon] + 1;
if (m < 10) result += '0' + m;
else result += m;
break;
case '%M': result += min;
break;
case '%p':
if (hour >= 12) result += "PM";
else result += "AM";
break;
case '%S':
result += sec;
break;
case '%w':
result += WDAYNAMES[wDay];
break;
case '%x':
result += day + "/" + mon + "/" + year.substring(2, 4);
break;
case '%X':
var h = Number(hour);
if (h >= 12) {
if (h > 12) result += (h - 12) + ":" + min + " PM";
else result += h + ":" + min + " PM";
}
else {
if (h == 0) result += (h + 12) + ":" + min + " AM";
else result += h + ":" + min + " AM";
}
break;
case '%y': result += year.substring(2, 4);
break;
case '%Y': result += year;
break;
default :
result += format;
}
}
return result;
}
function formatDigit(x, digit){
var fmt = x.toString();
var i = fmt.lastIndexOf('.');
if (i > 0){
fmt = fmt.substring(0, i+digit+1);
}
return fmt;
}
TwitterUserProfile = {
data: {},
user_cache: {},
access_id: '',
is_user_page: false,
dateformat: '%a %X %b %d',
DST: {
"Alaska|Pacific Time|Arizona|Mountain Time|Central Time|Eastern Time|Indiana" :{
start_dst : { month : 2, nth : 2, hour : 2, wday : 'Sun'
},
end_dst : { month : 10, nth : 1, hour : 2, wday : 'Sun'
}
},
"Dublin|Edinburgh|Lisbon|London|Monrovia" : {
start_dst : { month : 2, nth : -1, hour : 1, wday : 'Sun'
},
end_dst : { month : 9, nth : -1, hour : 1, wday : 'Sun'
}
},
"Amsterdam|Belgrade|Berlin|Bern|Bratislava|Brussels|Budapest|Copenhagen|Ljubljana|Madrid|Paris|Prague|Rome|Sarajevo|Skopje|Stockholm|Vienna|Warsaw|West Central Africa|Zagreb" : {
start_dst : { month : 2, nth : -1, hour : 1, wday : 'Sun'
},
end_dst : { month : 9, nth : -1, hour : 1, wday : 'Sun'
}
},
"Baghdad|Kuwait|Moscow|Nairobi|Riyadh|St\. Petersburg|Volgograd" : {
start_dst : { month : 2, nth : -1, hour : 1, wday : 'Sun'
},
end_dst : { month : 9, nth : -1, hour : 1, wday : 'Sun'
}
},
"Newfoundland" : {
start_dst : { month : 3, nth : 1, hour : 2, wday : 'Sun'
},
end_dst : { month : 9, nth : -1, hour : 2, wday : 'Sun'
}
}
},
getUserProfile: function(id, status_id, pt){
if (this.user_cache[id] != undefined){
this.renderLocalTime(id, status_id, pt);
} else {
this.access_id = id;
GM_xmlhttpRequest({
method: 'GET',
url: 'http://www.twitter.com/users/show/' + id + '.json',
onload : function (response){
TwitterUserProfile.processProfile(response.responseText);
if (TwitterUserProfile.is_user_page) TwitterUserProfile.dispUsersProfile(TwitterUserProfile.data);
if ((status_id) && (pt)) TwitterUserProfile.renderLocalTime(id, status_id, pt);
}
});
}
},
// evaluate json object and caching user data
processProfile: function(response){
eval("var obj=" + response);
for (name in obj) {
this.data[name] = obj[name];
}
var utc_offset = 0;
var time_diff = '';
if (this.data['utc_offset'] != null)
utc_offset = parseInt(this.data['utc_offset']);
this.user_cache[this.access_id] = {
utc_offset: 0,
time_zone: ''
};
this.user_cache[this.access_id].utc_offset = utc_offset;
this.user_cache[this.access_id].time_zone = this.data['time_zone'];
},
// rendering local time
renderLocalTime : function(id, status_id, pt) {
var spanTags = document.getElementById(status_id).getElementsByTagName("span");
for (var i = 0; i < spanTags.length; i++) {
if (spanTags[i].className == 'published timestamp'){
var pbtime = spanTags[i];
break;
}
}
if (pbtime.getAttribute('title')) return;
var utc_offset = 0;
var time_zone = '';
var time_diff = '';
utc_offset = parseInt(this.user_cache[id].utc_offset);
time_zone = this.user_cache[id].time_zone;
var utc = Date.parse(pt);
var local = new Date();
utc = utc + local.getTimezoneOffset() * 60 * 1000 + utc_offset * 1000;
local.setTime(utc);
for (var dst in this.DST) {
var re = new RegExp(dst);
if ((time_zone) && (time_zone.match(re))){
var d = this.DST[dst];
if (this.isdst(local, d)) {
utc = utc + 3600 * 1000;
utc_offset = utc_offset + 3600;
break;
}
}
}
local.setTime(utc);
time_diff = local.getTimezoneOffset() / 60 + utc_offset / 3600;
var time_diff_min = 0;
if (time_diff < 0) {
time_diff_min = Math.abs(time_diff) + Math.ceil(time_diff);
time_diff = time_diff + time_diff_min;
}
else {
time_diff_min = Math.abs(time_diff) - Math.floor(time_diff);
time_diff = time_diff - time_diff_min;
}
time_diff_min = time_diff_min * 60;
if (time_diff_min < 10) time_diff_min = "0" + time_diff_min;
if (time_diff >= 0) time_diff = "+" + time_diff;
time_diff = time_diff + ":" + time_diff_min;
var local_time = strftime(this.dateformat, local);
if ((time_diff != '') && (time_diff != '+0:00')) local_time = local_time + " (" + time_diff + ")";
if (time_zone != '')
local_time = local_time + " [" + time_zone + "]";
local_time = 'Local Time:' + local_time;
pbtime.setAttribute("title", local_time);
},
dispUsersProfile: function(profile){
var start_date = Date.parse(profile.created_at);
var _now = new Date();
var user_days = (_now.getTime() - start_date) / 1000 / 3600 / 24;
var side_profile = document.getElementById("side").getElementsByTagName("div")[0];
var tbl = side_profile.getElementsByTagName("table")[0];
var row = tbl.getElementsByTagName("tr")[0];
if (row){
var td = null;
td = document.getElementById("days_twitter_following");
if (!td) {
td = document.createElement("td");
td.id = "days_twitter_following";
var date_text = document.createElement("span");
date_text.className = "stats_count numeric";
date_text.innerHTML = Math.ceil(user_days);
var date_lbl = document.createElement("span");
date_lbl.className = "label";
date_lbl.style.fontSize = "8px";
date_lbl.innerHTML = "days<br/>follow twitter";
td.appendChild(date_text);
td.appendChild(date_lbl);
row.appendChild(td);
var update_count = document.getElementById("update_count");
var count = update_count.innerHTML;
var ave = profile.statuses_count / user_days;
if (ave < 1){
ave = user_days / profile.statuses_count;
ave = Math.ceil(ave);
count += ' (1/' + ave + 'day)';
} else {
count += ' (' + formatDigit(ave, 1) + '/day)';
}
update_count.innerHTML = count;
}
}
},
isdst: function(t, dst) {
var this_year = new Date().getFullYear();
var start_dst = dst["start_dst"];
var end_dst = dst["end_dst"];
var dst_start = this.getDateOfNumberOfWday(this_year, start_dst.month, start_dst.wday, start_dst.nth);
var dst_end = this.getDateOfNumberOfWday(this_year, end_dst.month, end_dst.wday, end_dst.nth);
if ((t.getMonth() >= dst_start.getMonth()) && (t.getMonth() <= dst_end.getMonth())) {
if (t.getMonth() == dst_start.getMonth()){
var judge = t.getDate() - dst_start.getDate();
if (judge > 0) return true;
if (judge < 0) return false;
if (t.getHours() < start_dst.hour) return false;
} else if ((t.getMonth() == dst_end.getMonth())) {
var judge = t.getDate() - dst_end.getDate();
if (judge < 0) return true;
if (judge > 0) return false;
if ((t.getHours() + 1) >= end_dst.hour) return false;
}
return true;
}
},
getDateOfNumberOfWday: function(year, month, wday, n) {
var d = new Date(year, month, 1);
var getWday = function(date){
return date.toString().split(/[\s:]/)[0];
};
var nextMonth = d.getMonth() < 11 ? d.getMonth() + 1 : 0;
var m = d.getMonth();
var i = 1;
for (;;){
if (getWday(d) == wday) {
if (i == n){
return d;
} else {
i += 1;
d.setDate(d.getDate() + 7);
if ((n == -1) && (d.getMonth() == nextMonth)){
d.setDate(d.getDate() - 7);
return d;
}
continue;
}
}
d.setDate(d.getDate() + 1);
if (d.getMonth() == nextMonth) break;
}
}
};
(function(){
var statuses = [];
var loc_user_name = '';
function init(){
var loc = window.location.toString();
if (loc.match(/http:\/\/twitter\.com\/([^\/]+\/?)(.*)/)) {
TwitterUserProfile.is_user_page = true;
loc_user_name = RegExp.$1;
if (loc_user_name[loc_user_name.length-1] == "/") {
TwitterUserProfile.is_user_page = false;
loc_user_name = loc_user_name.substring(0, loc_user_name.length-1);
}
if (loc_user_name.match(/following|followers|login/)){
loc_user_name = "";
TwitterUserProfile.is_user_page = false;
}
var path = RegExp.$2;
if (path.match(/\w+/)){
loc_user_name = "";
TwitterUserProfile.is_user_page = false;
}
}
if (loc_user_name != "") {
TwitterUserProfile.getUserProfile(loc_user_name);
}
allocEvent();
}
function allocEvent(){
var spanTags = document.getElementsByTagName("span");
for (var i = 0; i < spanTags.length; i += 1) {
var span = spanTags[i];
if (span.className == "published timestamp") {
if ((span) && (span.addEventListener)) {
var status_id = span.parentNode.parentNode.parentNode.parentNode.id;
// prevent to add duplicate event
if (statuses.indexOf(status_id) == -1){
span.addEventListener("mouseover", function(e){return show_time(e, loc_user_name);}, false);
statuses.push(status_id);
}
}
}
}
}
function show_time(e, loc_user_name){
var tstamp = eval(e.target.getAttribute("data"));
if (loc_user_name == '') {
var status = e.target.parentNode.parentNode.parentNode;
var un = status.getElementsByTagName("strong")[0];
if (un){
var user_name = un.getElementsByTagName("a")[0].text;
}
} else {
var user_name = loc_user_name;
}
var status_id = e.target.parentNode.parentNode.parentNode.parentNode.id;
TwitterUserProfile.getUserProfile(user_name, status_id, tstamp);
}
function monitor(){
if (document.getElementsByClassName ('meta entry-meta').length != statuses.length){
allocEvent();
}
setTimeout (monitor, 200);
}
init();
setTimeout (monitor, 200);
})();
