forked from extern/egroupware
152 lines
4.5 KiB
JavaScript
152 lines
4.5 KiB
JavaScript
/**
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* eGroupWare API: JSON - Contains the client side javascript implementation of class.egw_json.inc.php
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*
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* @link http://www.egroupware.org
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package api
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* @subpackage ajax
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* @author Andreas Stoeckel <as@stylite.de>
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* @version $Id$
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*/
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/* The egw_json_request is the javaScript side implementation of class.egw_json.inc.php.*/
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/* The constructor of the egw_json_request class.
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* @param string _menuaction the menuaction function which should be called and which handles the actual request
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* @param array _parameters which should be passed to the menuaction function.
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*/
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function egw_json_request(_menuaction, _parameters)
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{
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//Copy the supplied parameters
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this.menuaction = _menuaction;
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this.parameters = _parameters;
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this.url = window.egw_webserverUrl + '/json.php';
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this.sender = null;
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this.callback = null;
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this.alertHandler = this.alertFunc;
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if (document.alertHandler)
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{
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this.alertHandler = document.alertHandler;
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}
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}
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/* Sends the AJAX JSON request.
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* @param boolean _async specifies whether the request should be handeled asynchronously (true, the sendRequest function immediately returns to the caller) or asynchronously (false, the sendRequest function waits until the request is received)
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* @param _callback is an additional callback function which should be called upon a "data" response is received
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* @param _sender is the reference object the callback function should get
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*/
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egw_json_request.prototype.sendRequest = function(_async, _callback, _sender)
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{
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//Store the sender and callback parameter inside this class
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this.sender = _sender;
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if (typeof _callback != "undefined")
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this.callback = _callback;
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//Copy the async parameter which defaults to "true"
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var is_async = true;
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if (typeof _async != "undefined")
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is_async = _async;
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//Assemble the actual request string
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var request = '{';
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request += '"request":{';
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if (this.parameters)
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{
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request += '"parameters":[';
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for (var i = 0; i < this.parameters.length; i++)
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{
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if (i > 0)
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{
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request += ',';
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}
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request += '"' + this.parameters[i] + '"';
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}
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request += ']';
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}
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request += '}}';
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var request_obj = new Object();
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request_obj.json_data = request;
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//Send the request via the jquery AJAX interface to the server
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$.ajax({url: this.url + '?menuaction=' + this.menuaction,
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async: is_async,
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context: this,
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data: request_obj,
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dataType: 'json',
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type: 'POST',
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success: this.handleResponse});
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}
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egw_json_request.prototype.alertFunc = function(_message, _details)
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{
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alert(_message);
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}
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/* Internal function which handles the response from the server */
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egw_json_request.prototype.handleResponse = function(data, textStatus, XMLHttpRequest)
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{
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if (data.response)
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{
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var hasResponse = false;
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for (var i = 0; i < data.response.length; i++)
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{
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switch (data.response[i].type)
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{
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case 'alert':
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//Check whether all needed parameters have been passed and call the alertHandler function
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if ((typeof data.response[i].data.message != 'undefined') &&
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(typeof data.response[i].data.details != 'undefined'))
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{
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this.alertHandler(
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data.response[i].data.message,
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data.response[i].data.details)
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hasResponse = true;
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}
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break;
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case 'assign':
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//Check whether all needed parameters have been passed and call the alertHandler function
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if ((typeof data.response[i].data.id != 'undefined') &&
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(typeof data.response[i].data.key != 'undefined') &&
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(typeof data.response[i].data.value != 'undefined'))
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{
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var obj = document.getElementById(data.response[i].data.id);
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if (obj)
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{
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obj[data.response[i].data.key] = data.response[i].data.value;
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}
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hasResponse = true;
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}
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break;
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case 'data':
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//Callback the caller in order to allow him to handle the data
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if (this.callback)
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{
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this.callback.call(this.sender, data.response[i].data);
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}
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hasResponse = true;
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break;
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case 'script':
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if (typeof data.response[i].data == 'string')
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{
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eval(data.response[i].data);
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hasResponse = true;
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}
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break;
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case 'redirect':
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if (typeof data.response[i].data == 'string')
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{
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window.location.href = data.response[i].data;
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}
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break;
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}
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}
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/* If no explicit response has been specified, call the callback (if one was set) */
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if (!hasResponse && this.callback)
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{
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this.callback.call(this.sender, data.response[i].data);
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}
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}
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}
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