remove some more raw xmlhttp code

functions.js

@@ -718,14 +718,14 @@ function parse_counters(reply, scheduled_call) {
 	}
 }
 
-function parse_counters_reply(xmlhttp, scheduled_call) {
+function parse_counters_reply(transport, scheduled_call) {
 
-	if (!xmlhttp.responseXML) {
+	if (!transport.responseXML) {
 		notify_error("Backend did not return valid XML", true);
 		return;
 	}
 
-	var reply = xmlhttp.responseXML.firstChild;
+	var reply = transport.responseXML.firstChild;
 	
 	if (!reply) {
 		notify_error("Backend did not return expected XML object", true);
@@ -1275,38 +1275,33 @@ function closeInfoBox(cleanup) {
 
 function displayDlg(id, param) {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	notify_progress("Loading, please wait...", true);
 
-	xmlhttp.open("GET", "backend.php?op=dlg&id=" +
-		param_escape(id) + "&param=" + param_escape(param), true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
 	disableHotkeys();
 
+	var query = "backend.php?op=dlg&id=" +
+		param_escape(id) + "&param=" + param_escape(param);
+
+	new Ajax.Request(query, {
+		onComplete: function (transport) {
+			infobox_callback2(transport);
+		} });
+
 	return false;
 }
 
-function infobox_submit_callback() {
+function infobox_submit_callback2(transport) {
-	if (xmlhttp.readyState == 4) {
+	closeInfoBox();
-		closeInfoBox();
-
-		try {
-			// called from prefs, reload tab
-			if (active_tab) {
-				selectTab(active_tab, false);
-			}
-		} catch (e) { }
 
-		if (xmlhttp.responseText) {
+	try {
-			notify_info(xmlhttp.responseText);
+		// called from prefs, reload tab
+		if (active_tab) {
+			selectTab(active_tab, false);
 		}
+	} catch (e) { }
 
+	if (transport.responseText) {
+		notify_info(transport.responseText);
 	}
 }
 
@@ -1352,19 +1347,8 @@ function infobox_callback2(transport) {
 	}
 }
 
-function infobox_callback() {
-	if (xmlhttp.readyState == 4) {
-		infobox_callback2(xmlhttp);
-	}
-}
-
 function addFilter() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	var form = document.forms['filter_add_form'];
 	var reg_exp = form.reg_exp.value;
 
@@ -1375,9 +1359,10 @@ function addFilter() {
 
 	var query = Form.serialize("filter_add_form");
 
-	xmlhttp.open("GET", "backend.php?" + query, true);
+	new Ajax.Request("backend.php?" + query, {
-	xmlhttp.onreadystatechange=infobox_submit_callback;
+		onComplete: function (transport) {
-	xmlhttp.send(null);
+			infobox_submit_callback2(transport);
+		} });
 	
 	return true;
 }
@@ -1396,11 +1381,6 @@ function isValidURL(s) {
 
 function qaddFeed() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	var form = document.forms['feed_add_form'];
 	var feed_url = form.feed_url.value;
 
@@ -1421,14 +1401,11 @@ function qaddFeed() {
 	
 	debug("subscribe q: " + query);
 
-/*	xmlhttp.open("GET", "backend.php?" + query, true);
+	new Ajax.Request("backend.php", {
-	xmlhttp.onreadystatechange=dlg_frefresh_callback;
+		parameters: query,
-	xmlhttp.send(null); */
+		onComplete: function(transport) { 
-
+			dlg_frefresh_callback(transport); 
-	xmlhttp.open("POST", "backend.php", true);
+		} });
-	xmlhttp.onreadystatechange=dlg_frefresh_callback;
-	xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-	xmlhttp.send(query);
 
 	return false;
 }
@@ -1667,35 +1644,46 @@ Position.Center = function(element, parent) {
         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
 }
 
-function labeltest_callback() {
-	var container = document.getElementById('label_test_result');
-	if (xmlhttp.readyState == 4) {
 
-		container.innerHTML=xmlhttp.responseText;
+function labeltest_callback(transport) {
+	try {
+		var container = document.getElementById('label_test_result');
+	
+		container.innerHTML = transport.responseText;
 		if (!Element.visible(container)) {
 			Effect.SlideDown(container, { duration : 0.5 });
 		}
+
 		notify("");
+	} catch (e) {
+		exception_error("labeltest_callback", e);
 	}
 }
 
 function labelTest() {
 
-	var container = document.getElementById('label_test_result');
+	try {
+		var container = document.getElementById('label_test_result');
 	
-	var form = document.forms['label_edit_form'];
+		var form = document.forms['label_edit_form'];
 	
-	var sql_exp = form.sql_exp.value;
+		var sql_exp = form.sql_exp.value;
-	var description = form.description.value;
+		var description = form.description.value;
 	
-	notify_progress("Loading, please wait...");
+		notify_progress("Loading, please wait...");
 	
-	xmlhttp.open("GET", "backend.php?op=pref-labels&subop=test&expr=" +
+		var query = "backend.php?op=pref-labels&subop=test&expr=" +
-		param_escape(sql_exp) + "&descr=" + param_escape(description), true);
+			param_escape(sql_exp) + "&descr=" + param_escape(description);
 	
-	xmlhttp.onreadystatechange=labeltest_callback;
+		new Ajax.Request(query, {
-	xmlhttp.send(null);
+			onComplete: function (transport) {
+				labeltest_callback(transport);
+			} });
 	
-	return false;
+		return false;
+
+	} catch (e) {
+		exception_error("labelTest", e);
+	}
 }
 

prefs.js

@@ -13,6 +13,19 @@ var caller_subop = false;
 
 var sanity_check_done = false;
 
+function infobox_callback() {
+	if (xmlhttp.readyState == 4) {
+		infobox_callback2(xmlhttp);
+	}
+}
+
+function infobox_submit_callback() {
+	if (xmlhttp.readyState == 4) {
+		infobox_submit_callback2(xmlhttp);
+	}
+}
+
+
 function replace_pubkey_callback() {
 	if (xmlhttp.readyState == 4) {
 		try {	
@@ -82,31 +95,29 @@ function feedlist_callback() {
 
 /* stub for subscription dialog */
 
-function dlg_frefresh_callback() {
+function dlg_frefresh_callback(transport) {
-	if (xmlhttp.readyState == 4) {		
-	//	setTimeout("updateFeedList()", 500);
-
-		try {
-			var container = document.getElementById('prefContent');	
-			container.innerHTML=xmlhttp.responseText;
-			selectTab("feedConfig", true);
-
-			if (caller_subop) {
-				var tuple = caller_subop.split(":");
-				if (tuple[0] == 'editFeed') {
-					window.setTimeout('editFeed('+tuple[1]+')', 100);
-				}				
 
-				caller_subop = false;
+	try {
-			}
+		var container = document.getElementById('prefContent');	
-			if (typeof correctPNG != 'undefined') {
+		container.innerHTML=transport.responseText;
-				correctPNG();
+		selectTab("feedConfig", true);
+
+		if (caller_subop) {
+			var tuple = caller_subop.split(":");
+			if (tuple[0] == 'editFeed') {
+				window.setTimeout('editFeed('+tuple[1]+')', 100);
 			}				
-			notify("");
+
-		} catch (e) {
+			caller_subop = false;
-			exception_error("feedlist_callback", e);
 		}
+		if (typeof correctPNG != 'undefined') {
+			correctPNG();
+		}
+		notify("");
+	} catch (e) {
+		exception_error("feedlist_callback", e);
 	}
+
 }
 
 function filterlist_callback() {