From 2011.igem.org
// jquery.tweet.js - See http://tweet.seaofclouds.com/ or https://github.com/seaofclouds/tweet for more info
// Copyright (c) 2008-2011 Todd Matthews & Steve Purcell
(function($) {
$.fn.tweet = function(o){
var s = $.extend({
username: null, // [string or array] required unless using the 'query' option; one or more twitter screen names (use 'list' option for multiple names, where possible)
list: null, // [string] optional name of list belonging to username
favorites: false, // [boolean] display the user's favorites instead of his tweets
query: null, // [string] optional search query (see also: http://search.twitter.com/operators)
avatar_size: null, // [integer] height and width of avatar if displayed (48px max)
count: 3, // [integer] how many tweets to display?
fetch: null, // [integer] how many tweets to fetch via the API (set this higher than 'count' if using the 'filter' option)
page: 1, // [integer] which page of results to fetch (if count != fetch, you'll get unexpected results)
retweets: true, // [boolean] whether to fetch (official) retweets (not supported in all display modes)
intro_text: null, // [string] do you want text BEFORE your your tweets?
outro_text: null, // [string] do you want text AFTER your tweets?
join_text: null, // [string] optional text in between date and tweet, try setting to "auto"
auto_join_text_default: "i said,", // [string] auto text for non verb: "i said" bullocks
auto_join_text_ed: "i", // [string] auto text for past tense: "i" surfed
auto_join_text_ing: "i am", // [string] auto tense for present tense: "i was" surfing
auto_join_text_reply: "i replied to", // [string] auto tense for replies: "i replied to" @someone "with"
auto_join_text_url: "i was looking at", // [string] auto tense for urls: "i was looking at" http:...
loading_text: null, // [string] optional loading text, displayed while tweets load
refresh_interval: null , // [integer] optional number of seconds after which to reload tweets
twitter_url: "twitter.com", // [string] custom twitter url, if any (apigee, etc.)
twitter_api_url: "api.twitter.com", // [string] custom twitter api url, if any (apigee, etc.)
twitter_search_url: "search.twitter.com", // [string] custom twitter search url, if any (apigee, etc.)
template: "{avatar}{time}{join}{text}", // [string or function] template used to construct each tweet
- see code for available vars
comparator: function(tweet1, tweet2) { // [function] comparator used to sort tweets (see Array.sort)
return tweet2["tweet_time"] - tweet1["tweet_time"];
},
filter: function(tweet) { // [function] whether or not to include a particular tweet (be sure to also set 'fetch')
return true;
}
}, o);
// See http://daringfireball.net/2010/07/improved_regex_for_matching_urls
var url_regexp = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/gi;
// Expand values inside simple string templates with {placeholders}
function t(template, info) {
if (typeof template === "string") {
var result = template;
for(var key in info) {
var val = info[key];
result = result.replace(new RegExp('{'+key+'}','g'), val === null ? : val);
}
return result;
} else return template(info);
}
// Export the t function for use when passing a function as the 'template' option
$.extend({tweet: {t: t}});
function replacer (regex, replacement) {
return function() {
var returning = [];
this.each(function() {
returning.push(this.replace(regex, replacement));
});
return $(returning);
};
}
$.fn.extend({
linkUrl: replacer(url_regexp, function(match) {
var url = (/^[a-z]+:/i).test(match) ? match : "http://"+match;
return "<a href=\""+url+"\">"+match+"</a>";
}),
linkUser: replacer(/@(\w+)/gi, "@<a href=\"http://"+s.twitter_url+"/$1\">$1</a>"),
// Support various latin1 (\u00**) and arabic (\u06**) alphanumeric chars
linkHash: replacer(/(?:^| )[\#]+([\w\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff\u0600-\u06ff]+)/gi,
' <a href="http://'+s.twitter_search_url+'/search?q=&tag=$1&lang=all'+((s.username && s.username.length == 1 && !s.list) ? '&from='+s.username.join("%2BOR%2B") : )+'">#$1</a>'),
capAwesome: replacer(/\b(awesome)\b/gi, '$1'),
capEpic: replacer(/\b(epic)\b/gi, '$1'),
makeHeart: replacer(/(<)+[3]/gi, "♥")
});
function parse_date(date_str) {
// The non-search twitter APIs return inconsistently-formatted dates, which Date.parse
// cannot handle in IE. We therefore perform the following transformation:
// "Wed Apr 29 08:53:31 +0000 2009" => "Wed, Apr 29 2009 08:53:31 +0000"
return Date.parse(date_str.replace(/^([a-z]{3})( [a-z]{3} \d\d?)(.*)( \d{4})$/i, '$1,$2$4$3'));
}
function relative_time(date) {
var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
var delta = parseInt((relative_to.getTime() - date) / 1000, 10);
var r = ;
if (delta < 60) {
r = delta + ' seconds ago';
} else if(delta < 120) {
r = 'a minute ago';
} else if(delta < (45*60)) {
r = (parseInt(delta / 60, 10)).toString() + ' minutes ago';
} else if(delta < (2*60*60)) {
r = 'an hour ago';
} else if(delta < (24*60*60)) {
r = + (parseInt(delta / 3600, 10)).toString() + ' hours ago';
} else if(delta < (48*60*60)) {
r = 'a day ago';
} else {
r = (parseInt(delta / 86400, 10)).toString() + ' days ago';
}
return 'about ' + r;
}
function build_auto_join_text(text) {
if (text.match(/^(@([A-Za-z0-9-_]+)) .*/i)) {
return s.auto_join_text_reply;
} else if (text.match(url_regexp)) {
return s.auto_join_text_url;
} else if (text.match(/^((\w+ed)|just) .*/im)) {
return s.auto_join_text_ed;
} else if (text.match(/^(\w*ing) .*/i)) {
return s.auto_join_text_ing;
} else {
return s.auto_join_text_default;
}
}
function maybe_https(url) {
return ('https:' == document.location.protocol) ? url.replace(/^http:/, 'https:') : url;
}
function build_api_url() {
var proto = ('https:' == document.location.protocol ? 'https:' : 'http:');
var count = (s.fetch === null) ? s.count : s.fetch;
if (s.list) {
return proto+"//"+s.twitter_api_url+"/1/"+s.username[0]+"/lists/"+s.list+"/statuses.json?page="+s.page+"&per_page="+count+"&callback=?";
} else if (s.favorites) {
return proto+"//"+s.twitter_api_url+"/favorites/"+s.username[0]+".json?page="+s.page+"&count="+count+"&callback=?";
} else if (s.query === null && s.username.length == 1) {
return proto+'//'+s.twitter_api_url+'/1/statuses/user_timeline.json?screen_name='+s.username[0]+'&count='+count+(s.retweets ? '&include_rts=1' : )+'&page='+s.page+'&callback=?';
} else {
var query = (s.query || 'from:'+s.username.join(' OR from:'));
return proto+'//'+s.twitter_search_url+'/search.json?&q='+encodeURIComponent(query)+'&rpp='+count+'&page='+s.page+'&callback=?';
}
}
// Convert twitter API objects into data available for
// constructing each tweet using a template
function extract_template_data(item){
var o = {};
o.item = item;
o.source = item.source;
o.screen_name = item.from_user || item.user.screen_name;
o.avatar_size = s.avatar_size;
o.avatar_url = maybe_https(item.profile_image_url || item.user.profile_image_url);
o.retweet = typeof(item.retweeted_status) != 'undefined';
o.tweet_time = parse_date(item.created_at);
o.join_text = s.join_text == "auto" ? build_auto_join_text(item.text) : s.join_text;
o.tweet_id = item.id_str;
o.twitter_base = "http://"+s.twitter_url+"/";
o.user_url = o.twitter_base+o.screen_name;
o.tweet_url = o.user_url+"/status/"+o.tweet_id;
o.reply_url = o.twitter_base+"intent/tweet?in_reply_to="+o.tweet_id;
o.retweet_url = o.twitter_base+"intent/retweet?tweet_id="+o.tweet_id;
o.favorite_url = o.twitter_base+"intent/favorite?tweet_id="+o.tweet_id;
o.retweeted_screen_name = o.retweet && item.retweeted_status.user.screen_name;
o.tweet_relative_time = relative_time(o.tweet_time);
o.tweet_raw_text = o.retweet ? ('RT @'+o.retweeted_screen_name+' '+item.retweeted_status.text) : item.text; // avoid '...' in long retweets
o.tweet_text = $([o.tweet_raw_text]).linkUrl().linkUser().linkHash()[0];
o.tweet_text_fancy = $([o.tweet_text]).makeHeart().capAwesome().capEpic()[0];
// Default spans, and pre-formatted blocks for common layouts
o.user = t('<a class="tweet_user" href="{user_url}">{screen_name}</a>', o);
o.join = s.join_text ? t(' ', o) : ' ';
o.avatar = o.avatar_size ?
t('<a class="tweet_avatar" href="{user_url}"><img src="{avatar_url}" height="{avatar_size}" width="{avatar_size}" alt="{screen_name}\'s avatar" title="{screen_name}\'s avatar" border="0"/></a>', o) : ;
o.time = t('', o);
o.text = t('', o);
o.reply_action = t('<a class="tweet_action tweet_reply" href="{reply_url}">reply</a>', o);
o.retweet_action = t('<a class="tweet_action tweet_retweet" href="{retweet_url}">retweet</a>', o);
o.favorite_action = t('<a class="tweet_action tweet_favorite" href="{favorite_url}">favorite</a>', o);
return o;
}
return this.each(function(i, widget){
var list = $(' if(s.username && typeof(s.username) == "string"){
s.username = [s.username];
}
if (s.loading_text) $(widget).append(loading);
$(widget).bind("tweet:load", function(){
$.getJSON(build_api_url(), function(data){
if (s.loading_text) loading.remove();
if (s.intro_text) list.before(intro);
list.empty();
var tweets = $.map(data.results || data, extract_template_data);
tweets = $.grep(tweets, s.filter).sort(s.comparator).slice(0, s.count);
list.append($.map(tweets, function(o) { return "" + t(s.template, o) + ""; }).join(
)).
children('li:first').addClass('tweet_first').end().
children('li:odd').addClass('tweet_even').end().
children('li:even').addClass('tweet_odd');
if (s.outro_text) list.after(outro);
$(widget).trigger("loaded").trigger((tweets.length === 0 ? "empty" : "full"));
if (s.refresh_interval) {
window.setTimeout(function() { $(widget).trigger("tweet:load"); }, 1000 * s.refresh_interval);
}
});
}).trigger("tweet:load");
});
};
})(jQuery);
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