mirror of
https://github.com/EGroupware/egroupware.git
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380 lines
9.6 KiB
JavaScript
380 lines
9.6 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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function egw_json_encode(input)
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{
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if (!input) return 'null';
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switch (input.constructor) {
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case String:
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return '"' + input + '"';
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case Number:
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return input.toString();
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case Boolean:
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return input ? 'true' : 'false';
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case Array :
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var buf = [];
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for (var i = 0; i < input.length; i++)
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buf.push(egw_json_encode(input[i]));
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return '[' + buf.join(',') + ']';
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case Object:
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var buf = [];
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for (var k in input)
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buf.push('"' + k + '":' + egw_json_encode(input[k]));
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return '{' + buf.join(',') + '}';
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default:
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return 'null';
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}
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}
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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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if (typeof _parameters != 'undefined')
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{
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this.parameters = _parameters;
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}
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else
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{
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this.parameters = new Array;
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}
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var url = window.egw_webserverUrl;
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// Search up to parent if the current window is in a frame
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if(typeof url == "undefined")
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{
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url = top.egw_webserverUrl;
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}
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this.url = url + '/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 (window.egw_alertHandler)
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{
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this.alertHandler = window.egw_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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window.console.log(this);
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//Assemble the actual request object containing the json data string
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var request_obj = {
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"json_data": egw_json_encode(
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{
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"request": {
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"parameters": this.parameters
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}
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})
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}
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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.getFormValues = function(_form)
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{
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var elem = null;
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if (typeof _form == 'object')
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{
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elem = _form;
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}
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else
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{
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elem = document.getElementsByName(_form)[0];
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}
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var serialized = new Object;
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if (typeof elem != "undefined" && elem && elem.childNodes)
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{
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_egw_json_getFormValues(serialized, elem.childNodes)
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}
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return serialized;
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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 && 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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hasResponse = true;
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}
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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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hasResponse = true;
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}
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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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try
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{
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var func = function() {eval(data.response[i].data);};
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func.call(window);
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}
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catch (e)
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{
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if (typeof console != "undefined" && typeof console.log != "undefined")
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{
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e.code = data.response[i].data;
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console.log(e);
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}
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}
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hasResponse = true;
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}
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break;
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case 'each':
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if (typeof data.response[i].select == 'string' && typeof data.response[i].func == 'string')
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{
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try
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{
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var func = data.response[i].func;
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// todo: for N>2
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$(data.response[i].select).each(func.call(data.response[i].parms[0],data.response[i].parms[1],data.response[i].parms[2]));
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}
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catch (e)
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{
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if (typeof console != "undefined" && typeof console.log != "undefined")
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{
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e.code = data.response[i];
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console.log(e);
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}
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}
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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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/**
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* Deprecated legacy xajax wrapper functions for the new egw_json interface
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*/
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_xajax_doXMLHTTP = function(_async, _menuaction, _arguments)
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{
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/* Assemble the parameter array */
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var paramarray = new Array();
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for (var i = 1; i < _arguments.length; i++)
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{
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paramarray[paramarray.length] = _arguments[i];
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}
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/* Create a new request, passing the menuaction and the parameter array */
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var request = new egw_json_request(_menuaction, paramarray);
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/* Send the request */
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request.sendRequest(_async);
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return request;
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}
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xajax_doXMLHTTP = function(_menuaction)
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{
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return _xajax_doXMLHTTP(true, _menuaction, arguments);
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}
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xajax_doXMLHTTPsync = function(_menuaction)
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{
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return _xajax_doXMLHTTP(false, _menuaction, arguments);
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};
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window.xajax = {
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"getFormValues": function(_form)
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{
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return egw_json_request.prototype.getFormValues(_form);
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}
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};
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/*
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The following code is adapted from the xajax project which is licensed under
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the following license
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@copyright Copyright (c) 2005-2007 by Jared White & J. Max Wilson
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@copyright Copyright (c) 2008-2009 by Joseph Woolley, Steffen Konerow, Jared White & J. Max Wilson
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@license http://www.xajaxproject.org/bsd_license.txt BSD License
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*/
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/**
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* used internally by the legacy "egw_json_response.getFormValues" to recursively
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* run over all form elements
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* @param serialized is the object which will contain the form data
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* @param children is the children node of the form we're runing over
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*/
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function _egw_json_getFormValues(serialized, children)
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{
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for (var i = 0; i < children.length; ++i) {
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var child = children[i];
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if (typeof child.childNodes != "undefined")
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_egw_json_getFormValues(serialized, child.childNodes);
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_egw_json_getFormValue(serialized, child);
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}
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}
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/**
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* used internally to serialize
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*/
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function _egw_json_getFormValue(serialized, child)
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{
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//Return if the child doesn't have a name, is disabled, or is a radio-/checkbox and not checked
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if ((!child.name) || (child.disabled && child.disabled == true) ||
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(child.type && (child.type == 'radio' || child.type == 'checkbox') && (!child.checked)))
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{
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return;
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}
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var name = child.name;
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var values = new Array;
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if ('select-multiple' == child.type)
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{
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for (var j = 0; j < child.length; ++j)
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{
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var option = child.options[j];
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if (option.selected == true)
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values.push(option.value);
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}
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}
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else
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{
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values = child.value;
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}
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//Special treatment if the name of the child contains a [] - then all theese
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//values are added to an array.
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var keyBegin = name.indexOf('[');
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if (0 <= keyBegin) {
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var n = name;
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var k = n.substr(0, n.indexOf('['));
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var a = n.substr(n.indexOf('['));
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if (typeof serialized[k] == 'undefined')
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serialized[k] = [];
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var p = serialized; // pointer reset
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while (a.length != 0) {
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var sa = a.substr(0, a.indexOf(']')+1);
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var lk = k; //save last key
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var lp = p; //save last pointer
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a = a.substr(a.indexOf(']')+1);
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p = p[k];
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k = sa.substr(1, sa.length-2);
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if (k == '') {
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if ('select-multiple' == child.type) {
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k = lk; //restore last key
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p = lp;
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} else {
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k = p.length;
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}
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}
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if (typeof p[k] == 'undefined')
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p[k] = [];
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}
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p[k] = values;
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} else {
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//Add the value to the result object with the given name
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if (typeof values != "undefined")
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{
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serialized[name] = values;
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}
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}
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}
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