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