when trying to load a feed from collapsed category, show loading indicator in category title

feedlist.js

@@ -287,11 +287,28 @@ function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
 
 					if (!is_cat && img) {
 
-						if (!img.src.match("indicator_white")) {
-							img.alt = img.src;
-							img.src = getInitParam("sign_progress");
-						}
+						var cat_list = feedr.parentNode;
+
+						if (!cat_list || Element.visible(cat_list)) {
+							if (!img.src.match("indicator_white")) {
+								img.alt = img.src;
+								img.src = getInitParam("sign_progress");
+							}
+						} else if (cat_list) {
+							feed_cat_id = cat_list.id.replace("FCATLIST-", "");
+
+							if (!$('FLL-' + feed_cat_id)) {
+
+								var ll = document.createElement('img');
 
+								ll.src = getInitParam("sign_progress_tiny");
+								ll.className = 'hlLoading';
+								ll.id = 'FLL-' + feed;
+
+								$("FCAP-" + feed_cat_id).appendChild(ll);
+							}
+						} 
+					
 					} else {
 
 						if (!$('FLL-' + feed)) {
@@ -304,8 +321,8 @@ function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
 							feedr.appendChild(ll);
 						}
 					}
-				}
-			}
+				} 
+			}  
 
 			new Ajax.Request("backend.php", {
 				parameters: query,
@@ -362,6 +379,14 @@ function toggleCollapseCat(cat) {
 	}
 }
 
+function isCatCollapsed(cat) {
+	try {
+		return Element.visible("FCATLIST-" + cat);
+	} catch (e) {
+		exception_error("isCatCollapsed", e);
+	}
+}
+
 function feedlist_dragsorted(ctr) {
 	try {
 		var elem = $("feedList");

viewfeed.js

@@ -77,21 +77,19 @@ function headlines_callback2(transport, feed_cur_page) {
 
 		var ll = $('FLL-' + feed_id);
 
+		if (ll && ll.parentNode) 
+			ll.parentNode.removeChild(ll);
+
 		if (!is_cat) {
 			var feedr = $("FEEDR-" + feed_id);
 			if (feedr && !feedr.className.match("Selected")) {	
 				feedr.className = feedr.className + "Selected";
 			} 
-			if (feedr && ll) feedr.removeChild(ll);
 		} else {
 			var feedr = $("FCAT-" + feed_id);
 			if (feedr && !feedr.className.match("Selected")) {	
 				feedr.className = feedr.className + "Selected";
 			} 
-
-			var fcap = $("FCAP-" + feed_id);
-			if (fcap && ll) fcap.removeChild(ll);
-
 		}
 
 		var img = $('FIMG-' + feed_id);