/**
* JS_TVTWEETS - By Bramus! - http://www.bram.us/
* ----------------------------------------------------------------
*/
var JS_TVTWEETS = {}
/**
*
* jQuery Extensions
* ----------------------------------------------------------------
*/
// reverse for jQuery
jQuery.fn.reverse=Array.prototype.reverse;
/**
* JS_TVTWEETS - Helper Object
* ----------------------------------------------------------------
*/
JS_TVTWEETS.helper = {
/**
* replaceAll - replace all occurences of one instring into a string
* @param string str
* @param string needle
* @param string replacement
* @return string
* -------------------------------------------------------------
*/
replaceAll : function(str, needle, replacement) {
if (!str || (str == undefined) || (str == '')) return '';
return str.replace(new RegExp(needle, 'ig'), replacement);
},
/**
* assignFromObject - kinda like Spoon its "$tpl->assignFromArray($associativeArray)" ;)
* @param string str
* @param Object object
* @return string
* -------------------------------------------------------------
*/
assignFromObject : function(str, object) {
if (!str || (str == undefined) || (str == '')) return '';
for (index in object) {
str = JS_TVTWEETS.helper.replaceAll(str, '{' + index + '}', object[index]);
}
return str;
},
/**
* html_entity_decode (cfr. PHP)
* @author http://kevin.vanzonneveld.net/code/php_equivalents/php.js
* @param string str
* @return string
* -------------------------------------------------------------
*/
html_entity_decode : function (str) {
if (!str || (str == undefined) || (str == '')) return '';
var ta = document.createElement("textarea");
ta.innerHTML = str.replace(//g,">");
toReturn = ta.value;
ta = null;
return toReturn;
},
/**
* reworkHashTag
* @param string str
* @param string tag
* @return string
* -------------------------------------------------------------
*/
reworkHashTag : function(str, tag)
{
return JS_TVTWEETS.helper.replaceAll(str, '#' + tag, '#' + tag + '');
},
/**
* end of object
* -------------------------------------------------------------
*/
_eoo : true
}
/**
* JS_TVTWEETS - Ticker Object
* ----------------------------------------------------------------
*/
JS_TVTWEETS.ticker = {
/**
* dataMembers
* ----------------------------------------------------------------
*/
// defines
timeBetweenFetch : 10000, // time between two fetches of new tweets, in ms
timeBetweenDisplay : 2000, // time beteen showing tweets, in ms
timeToShow : 1000, // time to animate a new tweet before it is shown
maxResultsToFetch : 25, // the number of results to fetch at once
blob : '' + "\n" // the HTML that defines a new tweet
+ ' ' + "\n"
+ ' ' + "\n"
+ ' ' + "\n"
+ ' ' + "\n"
+ ' ' + "\n"
+ ' ' + "\n" + "\n",
// dynamic datamembers
theList : null, // the jQuery object that holds the ul where the tweets get added onto
tagToSearch : null, // the tag to search
lastTweetId : null, // id of the last tweet fetched (initially the last one shown)
tweetsInQueue : [], // the tweets in the queue
timer : null, // the timer to show the tweets
/**
* init - inits JS_TVTWEETS.ticker
* ----------------------------------------------------------------
*/
init : function(theList, tagToSearch)
{
// store theList
JS_TVTWEETS.ticker.theList = theList;
// set hover on list
JS_TVTWEETS.ticker.theList.hover(function() {
JS_TVTWEETS.ticker.hoverOverList = true;
}, function() {
JS_TVTWEETS.ticker.hoverOverList = false;
});
// store tagToSearch
JS_TVTWEETS.ticker.tagToSearch = tagToSearch;
// define last fetched id
JS_TVTWEETS.ticker.lastTweetId = $('.result:first').attr('id').replace('result_','');
// Start Fetch
JS_TVTWEETS.ticker.fetch();
// Start Process
JS_TVTWEETS.ticker.timer = setInterval(JS_TVTWEETS.ticker.process, JS_TVTWEETS.ticker.timeBetweenDisplay);
},
/**
* fetch - fetches new tweets JS_TVTWEETS.ticker and stores them on our internal queue
* ----------------------------------------------------------------
*/
fetch : function()
{
// Yay, Web 2.0 ... Fancy Schmanzy!
$.getJSON(
'http://search.twitter.com/search.json?q=%23' + JS_TVTWEETS.ticker.tagToSearch + '&rpp=' + JS_TVTWEETS.ticker.maxResultsToFetch + '&since_id=' + JS_TVTWEETS.ticker.lastTweetId + '&callback=?',
function (json)
{
// we haz got results
if (json.results.length > 0)
{
// loop all results
jQuery(json.results).reverse().each(function(i) {
// rework source
this.source = JS_TVTWEETS.helper.html_entity_decode(this.source);
// rework text
this.text = JS_TVTWEETS.helper.reworkHashTag(this.text, JS_TVTWEETS.ticker.tagToSearch);
// push tweet on queue
JS_TVTWEETS.ticker.tweetsInQueue.push(this);
});
// store lastTweetId
if (JS_TVTWEETS.ticker.tweetsInQueue.length > 0)
{
JS_TVTWEETS.ticker.lastTweetId = JS_TVTWEETS.ticker.tweetsInQueue[JS_TVTWEETS.ticker.tweetsInQueue.length-1].id;
}
}
// now, fetch the results again
setTimeout(function() {
JS_TVTWEETS.ticker.fetch();
}, JS_TVTWEETS.ticker.timeBetweenFetch);
}
);
},
/**
* process - processes our internal queue and displays the tweets
* ----------------------------------------------------------------
*/
process : function()
{
// no items in queue? Just return then
if (JS_TVTWEETS.ticker.tweetsInQueue.length == 0) return;
// user is hovering over list? Don't show!
if (JS_TVTWEETS.ticker.hoverOverList) return;
// shift current item from tweetsInQueue
var curItem = JS_TVTWEETS.ticker.tweetsInQueue.shift();
// define blob
var blob = JS_TVTWEETS.helper.assignFromObject(JS_TVTWEETS.ticker.blob, curItem);
// inject it and show it
$(blob).css('display','none').prependTo(JS_TVTWEETS.ticker.theList).slideDown(JS_TVTWEETS.ticker.timeToShow);
},
/**
* end of object
* -------------------------------------------------------------
*/
_eoo : true
}
// EOF
' + "\n"
+ ' ' + "\n"
+ '