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132 lines
3.8 KiB
JavaScript
132 lines
3.8 KiB
JavaScript
/**
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* (c) 2010 jxf - rpc module.
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*
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* The idea of behind this module is fetching data via an RPC-like call:
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* . RESTful web services
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* . XML/SOAP (not yet implemented)
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* . Remote document (HTML; XML; JSON)
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* . Local documents (HTML; XML; JSON)
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* The module will return the data to a callback function should a parser be specified, the module will parse the data and return the parsed data to the callback function
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* This allows the client code to minimize parsing should returned data be in a standard format.
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* TODO:
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* Improve on how returned data is handled (if necessary).
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*/
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if(!jx){
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var jx = {}
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}
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/**
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* These are a few parsers that can come in handy:
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* urlparser: This parser is intended to break down a url parameter string in key,value pairs
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*/
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function urlparser(url){
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if(url.toString().match(/\x3F/) != null){
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url = url.split('\x3F')[1]
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}
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var p = url.split('&') ;
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var r = {} ;
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r.meta = [] ;
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r.data = {} ;
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var entry;
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for(var i=0; i < p.length; i++){
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entry = p[i] ;
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key = (entry.match('(.*)=') !=null)? entry.match('(.*)=')[1]:null ;
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value = (entry.match('=(.*)$') != null)? entry.match('=(.*)$')[1]:null
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if(key != null){
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key = key.replace('\x3F','')
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r.meta.push(key) ;
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r.data[key] = value ;
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}
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}
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return r.data;
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}
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/**
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* The following are corrections related to consistency in style & cohesion
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*/
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jx.ajax = {}
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jx.ajax.get = {} ;
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jx.ajax.debug = null;
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jx.ajax.get.instance = function(){
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var factory = function(){
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this.obj = {}
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this.obj.headers = {}
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this.obj.async = true;
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this.setHeader = function(key,value){
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if(key.constructor != String && value == null){
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this.obj.headers = key ;
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}else{
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this.obj.headers[key] = value;
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}
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}
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this.setData = function(data){
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this.obj.data = data;
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}
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this.setAsync = function(flag){
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this.obj.async = (flag == true) ;
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}
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this.send = function(url,callback,method){
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if(method == null){
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method = 'GET'
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}
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p = jx.ajax.debug != null;
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q = false;
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if(p){
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q = jx.ajax.debug[url] != null;
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}
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is_debuggable = p && q
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if(is_debuggable){
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x = {} ;
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x.responseText = jx.ajax.debug [url] ;
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callback(x)
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}else{
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var http = new XMLHttpRequest() ;
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http.onreadystatechange = function(){
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if(http.readyState == 4){
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callback(http)
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}
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}
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//
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// In order to insure backward compatibility
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// Previous versions allowed the user to set the variable on the wrapper (poor design)
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if(this.async != null){
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this.setAsync(this.async) ;
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}
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http.open(method,url,this.obj.async) ;
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for(key in this.obj.headers){
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value = this.obj.headers[key] ;
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http.setRequestHeader(key,value)
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}
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http.send(this.obj.data)
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}
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}
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this.put = function(url,callback){
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this.send(url,callback,'PUT') ;
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}
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this.get = function(url,callback){
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this.send(url,callback,'GET') ;
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}
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this.post = function(url,callback){
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this.send(url,callback,'POST') ;
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}
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}//-- end of the factory method
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return new factory() ;
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}
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//
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// backward compatibility
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jx.ajax.getInstance = jx.ajax.get.instance ;
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HttpClient = jx.ajax.get ;
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