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<h1 class="page-title">Source: modules/ajax.js</h1>
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<pre class="prettyprint source linenums"><code>/**
* Ajax
*
* Module for making ajax requests
*/
(function (undefined){
"use strict";
var ajax = {
_do: function (url, data, success_callback, error_callback, type)
{
var type,
request = new XMLHttpRequest();
if (success_callback === undefined)
{
/**
* @private
*/
success_callback = function (){};
}
if (type === "GET")
{
url += (url.match(/\?/))
? this._serialize(data)
: "?" + this._serialize(data);
}
request.open(type, url);
request.onreadystatechange = function ()
{
if (request.readyState === 4)
{
if (request.status === 200)
{
success_callback.call(request.responseText, request.responseText);
}
else
{
if (error_callback !== undefined)
{
error_callback.call(request.status, request.status);
}
}
}
};
if (type !== "GET")
{
request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
request.send(this._serialize(data));
}
else
{
request.send(null);
}
},
/**
* Url encoding for non-get requests
*
* @param data
* @returns {string}
* @private
*/
_serialize: function (data)
{
var name,
value,
pairs = [];
for (name in data)
{
if ( ! data.hasOwnProperty(name) || $_.type(data[name]) === "function")
{
continue;
}
value = data[name].toString();
name = encodeURIComponent(name);
value = encodeURIComponent(value);
pairs.push(name + "=" + value);
}
return pairs.join("&");
}
};
/**
* Sends a GET type ajax request
*
* @function get
* @memberOf $_
* @param {string} url - The url to retrieve
* @param {Object} data - get parameters to send
* @param {function} success_callback - callback called on success
* @param {function} [error_callback] - callback called if there is an error
*/
$_.ext('get', function (url, data, success_callback, error_callback){
ajax._do(url, data, success_callback, error_callback, 'GET');
});
/**
* Sends a POST type ajax request
*
* @function post
* @memberOf $_
* @param {string} url - The url to post to
* @param {Object} data - post parameters to send
* @param {function} success_callback - callback called on success
* @param {function} [error_callback] - callback called if there is an error
*/
$_.ext('post', function (url, data, success_callback, error_callback){
ajax._do(url, data, success_callback, error_callback, 'POST');
});
/**
* Sends a PUT type ajax request
*
* @function put
* @memberOf $_
* @param {string} url - The url to post to
* @param {Object} data - PUT parameters to send
* @param {function} success_callback - callback called on success
* @param {function} [error_callback] - callback called if there is an error
*/
$_.ext('put', function (url, data, success_callback, error_callback){
ajax._do(url, data, success_callback, error_callback, 'PUT');
});
/**
* Sends a DELETE type ajax request
*
* @function delete
* @memberOf $_
* @param {string} url - The url to post to
* @param {Object} data - delete parameters to send
* @param {function} success_callback - callback called on success
* @param {function} [error_callback] - callback called if there is an error
*/
$_.ext('delete', function (url, data, success_callback, error_callback){
ajax._do(url, data, success_callback, error_callback, 'DELETE');
});
}());
</code></pre>
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