code cleanups, make feedlist_callback async

feedlist.js

@@ -10,10 +10,18 @@ function viewCategory(cat) {
 
 function feedlist_callback() {
 	if (xmlhttp.readyState == 4) {
-		debug("feedlist_callback");
+		feedlist_callback2(xmlhttp);
+	}
+}
+
+function feedlist_callback2(transport) {
+	try {
+		debug("feedlist_callback2");
 		var f = document.getElementById("feeds-frame");
-		f.innerHTML = xmlhttp.responseText;
+		f.innerHTML = transport.responseText;
 		feedlist_init();
+	} catch (e) {
+		exception_error("feedlist_callback2", e);
 	}
 }
 

prefs.js

@@ -48,7 +48,6 @@ function expand_feed_callback() {
 			var container = document.getElementById("BRDET-" + feed_to_expand);	
 			container.innerHTML=xmlhttp.responseText;
 //			container.style.display = "block";
-//			p_notify("");
 			Effect.Appear(container, {duration : 0.5});
 		} catch (e) {
 			exception_error("expand_feed_callback", e);
@@ -248,10 +247,6 @@ function updateFeedList(sort_key) {
 		return
 	}
 
-//	document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
-
-//	p_notify("Loading, please wait...");
-
 	var feed_search = document.getElementById("feed_search");
 	var search = "";
 	if (feed_search) { search = feed_search.value; }
@@ -279,10 +274,6 @@ function updateUsersList(sort_key) {
 		return
 	}
 
-//	document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
-
-//	p_notify("Loading, please wait...");
-
 	xmlhttp.open("GET", "backend.php?op=pref-users&sort="
 		+ param_escape(sort_key), true);
 	xmlhttp.onreadystatechange=userlist_callback;
@@ -1153,10 +1144,6 @@ function updateFilterList(sort_key) {
 		return
 	}
 
-//	document.getElementById("prefContent").innerHTML = "Loading filters, please wait...";
-
-//	p_notify("Loading, please wait...");
-
 	xmlhttp.open("GET", "backend.php?op=pref-filters&sort=" + 
 		param_escape(sort_key), true);
 	xmlhttp.onreadystatechange=filterlist_callback;
@@ -1171,10 +1158,6 @@ function updateLabelList(sort_key) {
 		return
 	}
 
-//	p_notify("Loading, please wait...");
-
-//	document.getElementById("prefContent").innerHTML = "Loading labels, please wait...";
-
 	xmlhttp.open("GET", "backend.php?op=pref-labels&sort=" + 
 		param_escape(sort_key), true);
 	xmlhttp.onreadystatechange=labellist_callback;
@@ -1188,8 +1171,6 @@ function updatePrefsList() {
 		return
 	}
 
-//	p_notify("Loading, please wait...");
-
 	xmlhttp.open("GET", "backend.php?op=pref-prefs", true);
 	xmlhttp.onreadystatechange=prefslist_callback;
 	xmlhttp.send(null);
@@ -1467,8 +1448,6 @@ function updateBigFeedBrowser(limit) {
 		return
 	}
 
-//	p_notify("Loading, please wait...");
-
 	var query = "backend.php?op=pref-feed-browser";
 
 	var limit_sel = document.getElementById("feedBrowserLimit");

tt-rss.js

@@ -219,14 +219,10 @@ function updateFeedList(silent, fetch) {
 
 	debug("updateFeedList Q=" + query_str);
 
-	if (xmlhttp_ready(xmlhttp)) {
-		xmlhttp.open("GET", query_str, true);
-		xmlhttp.onreadystatechange=feedlist_callback;
-		xmlhttp.send(null);
-	} else {
-		debug("xmlhttp busy");
-		//printLockingError();
-	}   
+	new Ajax.Request(query_str, {
+		onComplete: function(transport) { 
+			feedlist_callback2(transport); 
+		} });
 
 }
 
@@ -238,14 +234,10 @@ function catchupAllFeeds() {
 
 	debug("catchupAllFeeds Q=" + query_str);
 
-	if (xmlhttp_ready(xmlhttp)) {
-		xmlhttp.open("GET", query_str, true);
-		xmlhttp.onreadystatechange=feedlist_callback;
-		xmlhttp.send(null);
-	} else {
-		debug("xmlhttp busy");
-		//printLockingError();
-	}   
+	new Ajax.Request(query_str, {
+		onComplete: function(transport) { 
+			feedlist_callback2(transport); 
+		} });
 
 	global_unread = 0;
 	updateTitle("");
@@ -297,19 +289,6 @@ function search() {
 	viewCurrentFeed(0, "");
 }
 
-function localPiggieFunction(enable) {
-	if (enable) {
-		var query_str = "backend.php?op=feeds&subop=piggie";
-
-		if (xmlhttp_ready(xmlhttp)) {
-
-			xmlhttp.open("GET", query_str, true);
-			xmlhttp.onreadystatechange=feedlist_callback;
-			xmlhttp.send(null);
-		}
-	}
-}
-
 // if argument is undefined, current subtitle is not updated
 // use blank string to clear subtitle
 function updateTitle(s) {