var lr = {
/**
* Url of the directory where these files are stored. Should not end in /
* @type string
*/
baseURL : gadgets.util.getUrlParameters()["url"].replace(/lamerankings\.xml/, ""),
/**
* Loads the supplied URL as a javascript file and calls callback when
* the file is finished loading
*/
loadScript : function(href, callback) {
if (href.indexOf("http") != 0) {
href = [ this.baseURL, href ].join("");
}
var script = document.createElement("script");
script.src = href;
if (typeof(callback) == "function") {
script.onload = callback;
}
document.body.appendChild(script);
},
loadCss : function(href) {
if (href.indexOf("http") != 0) {
href = [ this.baseURL, href ].join("");
}
var link = document.createElement("link");
link.rel = "stylesheet";
link.type = "text/css";
link.href = href;
document.body.appendChild(link);
},
/**
* Returns a closure that will call the supplied function on the supplied
* object and forward any parameters passed to it
*/
bind : function(func, obj) {
return function() {
func.apply(obj, arguments);
};
},
/**
* Logs a message to an appropriate location
*/
log : function() {
if (window.console && console.log) {
console.log.apply(console, arguments);
}
}
};
/**
* Class that calls a specified function after its own callback function has
* been called a set number of times
*/
lr.AggregateCallback = function(num, onfinished) {
this.current_ = 0;
this.total_ = num;
this.onfinished_ = onfinished;
};
/**
* Prototype for AggregateCallback
*/
lr.AggregateCallback.prototype = {
current_ : 0,
total_ : null,
onfinished_ : null,
callback : function() {
this.current_++;
lr.log("Loaded", this.current_, "callback / ", this.total_);
if (this.current_ == this.total_) {
this.onfinished_();
this.onfinished_ = null;
}
}
};
//Create a new AggregateCallback that waits for four callbacks and calls
//lr.init when all four have been activated
var ac = new lr.AggregateCallback(7, function() { lr.init(); });
//Load w23.js
lr.loadScript("/w23.js", lr.bind(ac.callback, ac));
//Load jquery.js
lr.loadScript("/jquery.js", lr.bind(ac.callback, ac));
//Load interface.js
lr.loadScript("/interface.js", lr.bind(ac.callback, ac));
//Load lamerankings.js
lr.loadScript("/lamerankings.js", lr.bind(ac.callback, ac));
//Load cr-opensocial.js
lr.loadScript("/cr-opensocial.js", lr.bind(ac.callback, ac));
//Load lr-lamerank.js
lr.loadScript("/lr-lamerank.js", lr.bind(ac.callback, ac));
//Wait for OpenSocial to have loaded
gadgets.util.registerOnLoadHandler(lr.bind(ac.callback, ac));
//Load CSS
lr.loadCss("/lamerankings.base.css");
]]>