~launchpad-pqm/launchpad/devel

//based on prototype's ajax class

//to be used with prototype.lite, moofx.mad4milk.net.

 

ajax = Class.create();

ajax.prototype = {

        initialize: function(url, options){

                this.transport = this.getTransport();

                this.postBody = options.postBody || '';

                this.method = options.method || 'post';

                this.onComplete = options.onComplete || null;

                this.update = $(options.update) || null;

                this.request(url);

        },

 

        request: function(url){

                this.transport.open(this.method, url, true);

                this.transport.onreadystatechange = this.onStateChange.bind(this);

                if (this.method == 'post') {

                        this.transport.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');

                        if (this.transport.overrideMimeType) this.transport.setRequestHeader('Connection', 'close');

                }

                this.transport.send(this.postBody);

        },

 

        onStateChange: function(){

                if (this.transport.readyState == 4 && this.transport.status == 200) {

                        if (this.onComplete) 

                                setTimeout(function(){this.onComplete(this.transport);}.bind(this), 10);

                        if (this.update)

                                setTimeout(function(){this.update.innerHTML = this.transport.responseText;}.bind(this), 10);

                        this.transport.onreadystatechange = function(){};

                }

        },

 

        getTransport: function() {

                if (window.ActiveXObject) return new ActiveXObject('Microsoft.XMLHTTP');

                else if (window.XMLHttpRequest) return new XMLHttpRequest();

                else return false;

        }

};