// remote scripting library // (c) copyright 2005 modernmethod, inc var sajax_debug_mode = false; var sajax_request_type = "GET"; /** * if sajax_debug_mode is true, this function outputs given the message into * the element with id = sajax_debug; if no such element exists in the document, * it is injected. */ function sajax_debug(text) { if (!sajax_debug_mode) return false; var e= document.getElementById('sajax_debug'); if (!e) { e= document.createElement("p"); e.className= 'sajax_debug'; e.id= 'sajax_debug'; var b= document.getElementsByTagName("body")[0]; if (b.firstChild) b.insertBefore(e, b.firstChild); else b.appendChild(e); } var m= document.createElement("div"); m.appendChild( document.createTextNode( text ) ); e.appendChild( m ); return true; } /** * compatibility wrapper for creating a new XMLHttpRequest object. */ function sajax_init_object() { sajax_debug("sajax_init_object() called..") var A; try { // Try the new style before ActiveX so we don't // unnecessarily trigger warnings in IE 7 when // set to prompt about ActiveX usage A = new XMLHttpRequest(); } catch (e) { try { A=new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { A=new ActiveXObject("Microsoft.XMLHTTP"); } catch (oc) { A=null; } } } if (!A) sajax_debug("Could not create connection object."); return A; } /** * Perform an ajax call to mediawiki. Calls are handeled by AjaxDispatcher.php * func_name - the name of the function to call. Must be registered in $wgAjaxExportList * args - an array of arguments to that function * target - the target that will handle the result of the call. If this is a function, * if will be called with the XMLHttpRequest as a parameter; if it's an input * element, its value will be set to the resultText; if it's another type of * element, its innerHTML will be set to the resultText. * * Example: * sajax_do_call('doFoo', [1, 2, 3], document.getElementById("showFoo")); * * This will call the doFoo function via MediaWiki's AjaxDispatcher, with * (1, 2, 3) as the parameter list, and will show the result in the element * with id = showFoo */ function sajax_do_call(func_name, args, target) { var i, x, n; var uri; var post_data; uri = wgServer + ((wgScript == null) ? (wgScriptPath + "/index.php") : wgScript) + "?action=ajax"; if (sajax_request_type == "GET") { if (uri.indexOf("?") == -1) uri = uri + "?rs=" + encodeURIComponent(func_name); else uri = uri + "&rs=" + encodeURIComponent(func_name); for (i = 0; i < args.length; i++) uri = uri + "&rsargs[]=" + encodeURIComponent(args[i]); //http://uri/ = uri + "&rsrnd=" + new Date().getTime(); post_data = null; } else { post_data = "rs=" + encodeURIComponent(func_name); for (i = 0; i < args.length; i++) post_data = post_data + "&rsargs[]=" + encodeURIComponent(args[i]); } x = sajax_init_object(); if (!x) { alert("AJAX not supported"); return false; } try { x.open(sajax_request_type, uri, true); } catch (e) { if (window.location.hostname == "localhost") { alert("Your browser blocks XMLHttpRequest to 'localhost', try using a real hostname for development/testing."); } throw e; } if (sajax_request_type == "POST") { x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1"); x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); } x.setRequestHeader("Pragma", "cache=yes"); x.setRequestHeader("Cache-Control", "no-transform"); x.onreadystatechange = function() { if (x.readyState != 4) return; sajax_debug("received (" + x.status + " " + x.statusText + ") " + x.responseText); //http://if/ (x.status != 200) // alert("Error: " + x.status + " " + x.statusText + ": " + x.responseText); //http://else/ if ( typeof( target ) == 'function' ) { target( x ); } else if ( typeof( target ) == 'object' ) { if ( target.tagName == 'INPUT' ) { if (x.status == 200) target.value= x.responseText; //http://else/ alert("Error: " + x.status + " " + x.statusText + " (" + x.responseText + ")"); } else { if (x.status == 200) target.innerHTML = x.responseText; else target.innerHTML= "
Error: " + x.status + " " + x.statusText + " (" + x.responseText + ")
"; } } else { alert("bad target for sajax_do_call: not a function or object: " + target); } return; } sajax_debug(func_name + " uri = " + uri + " / post = " + post_data); x.send(post_data); sajax_debug(func_name + " waiting.."); delete x; return true; } /** * @return boolean whether the browser supports XMLHttpRequest */ function wfSupportsAjax() { var request = sajax_init_object(); var supportsAjax = request ? true : false; delete request; return supportsAjax; }