1 // remote scripting library
2 // (c) copyright 2005 modernmethod, inc
3 var sajax_debug_mode = false;
4 var sajax_request_type = "GET";
7 * if sajax_debug_mode is true, this function outputs given the message into
8 * the element with id = sajax_debug; if no such element exists in the document,
11 function sajax_debug(text) {
12 if (!sajax_debug_mode) return false;
14 var e= document.getElementById('sajax_debug');
17 e= document.createElement("p");
18 e.className= 'sajax_debug';
21 var b= document.getElementsByTagName("body")[0];
23 if (b.firstChild) b.insertBefore(e, b.firstChild);
24 else b.appendChild(e);
27 var m= document.createElement("div");
28 m.appendChild( document.createTextNode( text ) );
36 * compatibility wrapper for creating a new XMLHttpRequest object.
38 function sajax_init_object() {
39 sajax_debug("sajax_init_object() called..")
42 // Try the new style before ActiveX so we don't
43 // unnecessarily trigger warnings in IE 7 when
44 // set to prompt about ActiveX usage
45 A = new XMLHttpRequest();
48 A=new ActiveXObject("Msxml2.XMLHTTP");
51 A=new ActiveXObject("Microsoft.XMLHTTP");
58 sajax_debug("Could not create connection object.");
64 * Perform an ajax call to mediawiki. Calls are handeled by AjaxDispatcher.php
65 * func_name - the name of the function to call. Must be registered in $wgAjaxExportList
66 * args - an array of arguments to that function
67 * target - the target that will handle the result of the call. If this is a function,
68 * if will be called with the XMLHttpRequest as a parameter; if it's an input
69 * element, its value will be set to the resultText; if it's another type of
70 * element, its innerHTML will be set to the resultText.
73 * sajax_do_call('doFoo', [1, 2, 3], document.getElementById("showFoo"));
75 * This will call the doFoo function via MediaWiki's AjaxDispatcher, with
76 * (1, 2, 3) as the parameter list, and will show the result in the element
79 function sajax_do_call(func_name, args, target) {
84 ((wgScript == null) ? (wgScriptPath + "/index.php") : wgScript) +
86 if (sajax_request_type == "GET") {
87 if (uri.indexOf("?") == -1)
88 uri = uri + "?rs=" + encodeURIComponent(func_name);
90 uri = uri + "&rs=" + encodeURIComponent(func_name);
91 for (i = 0; i < args.length; i++)
92 uri = uri + "&rsargs[]=" + encodeURIComponent(args[i]);
93 //uri = uri + "&rsrnd=" + new Date().getTime();
96 post_data = "rs=" + encodeURIComponent(func_name);
97 for (i = 0; i < args.length; i++)
98 post_data = post_data + "&rsargs[]=" + encodeURIComponent(args[i]);
100 x = sajax_init_object();
102 alert("AJAX not supported");
107 x.open(sajax_request_type, uri, true);
109 if (window.location.hostname == "localhost") {
110 alert("Your browser blocks XMLHttpRequest to 'localhost', try using a real hostname for development/testing.");
114 if (sajax_request_type == "POST") {
115 x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
116 x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
118 x.setRequestHeader("Pragma", "cache=yes");
119 x.setRequestHeader("Cache-Control", "no-transform");
120 x.onreadystatechange = function() {
121 if (x.readyState != 4)
124 sajax_debug("received (" + x.status + " " + x.statusText + ") " + x.responseText);
126 //if (x.status != 200)
127 // alert("Error: " + x.status + " " + x.statusText + ": " + x.responseText);
130 if ( typeof( target ) == 'function' ) {
133 else if ( typeof( target ) == 'object' ) {
134 if ( target.tagName == 'INPUT' ) {
135 if (x.status == 200) target.value= x.responseText;
136 //else alert("Error: " + x.status + " " + x.statusText + " (" + x.responseText + ")");
139 if (x.status == 200) target.innerHTML = x.responseText;
140 else target.innerHTML= "<div class='error'>Error: " + x.status + " " + x.statusText + " (" + x.responseText + ")</div>";
144 alert("bad target for sajax_do_call: not a function or object: " + target);
150 sajax_debug(func_name + " uri = " + uri + " / post = " + post_data);
152 sajax_debug(func_name + " waiting..");
159 * @return boolean whether the browser supports XMLHttpRequest
161 function wfSupportsAjax() {
162 var request = sajax_init_object();
163 var supportsAjax = request ? true : false;