Ajax

ajax.js

/*!
 * Ajax JavaScript Library v0.5.12
 * http://public.ramon-barros.com/
 *
 * Copyright 2012, Ramon Barros
 * Licensed
 *
 * Includes ajax.js
 * http://.com/
 * Copyright 2012, 
 * 
 *
 * Date: Wed May 03 13:17:00 2012 -0300
 */
 (function (root) {
    'use strict';
    var Ajax = function () {
        this.setajax = {};
        this.xmlhttp = {};
    };
    Ajax.prototype.open = function (s) {
        var async, method, url, self = this;
        this.setajax = s;
        try {
          if (!this.setajax.url) {
              throw 'Você deve informar a url.';
          }
          if (typeof this.setajax === 'object') {
              if (root.XMLHttpRequest) {
                  // IE7+, Firefox, Chrome, Opera, Safari
                  this.xmlhttp = new XMLHttpRequest();
              } else {
                  // IE6, IE5
                  this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
              }
              this.xmlhttp.onreadystatechange = function () {
                  if (self.xmlhttp.readyState === 4 && self.xmlhttp.status === 200) {
                      if (self.setajax.dataType === 'json') {
                          self.setajax.responseText = JSON.parse(self.xmlhttp.responseText); //eval('(' + self.xmlhttp.responseText + ')');
                      } else {
                          self.setajax.responseText = self.xmlhttp.responseText;
                      }
                  }
              };
              method = this.setajax.method || 'GET';
              url = this.setajax.url || root.location.href;
              async = this.setajax.async || false;
              this.xmlhttp.open(method, url, async);
              this.xmlhttp.setRequestHeader("X-Requested-With", "XMLHttpRequest");
              if (this.setajax.data) {
                  this.xmlhttp.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
                  this.xmlhttp.send(JSON.stringify(this.setajax.data));
              } else {
                  this.xmlhttp.send();
              }
              if (this.setajax.success && typeof this.setajax.success === 'function') {
                  this.setajax.success(this.setajax.responseText);
              }
          } else {
              throw 'Você deve passar um objeto.';
          }
        } catch (e) {
          if (this.setajax.error && typeof this.setajax.error === 'function') {
              this.setajax.error(e);
          }
        }

        return this.xmlhttp;
    };
    root['Ajax'] = new Ajax();
}(this));

/*
 var ajax = Ajax.open({
	method: 'GET',
	url: 'http://localhost/',
	dataType: 'json',
	//data: { id: 1 },
	success: function (json) {
	  console.log(json);
	}
});
 */