view: request counters in background, request_counters(): add client rate limit

backend.php

@@ -210,11 +210,11 @@
 				}
 			}
 
-			if ($mode != "prefetch_old") {
+/*			if ($mode != "prefetch_old") {
 				print "<counters>";
 				getAllCounters($link, $omode);
 				print "</counters>";
-			}
+			} */
 
 			print "</reply>";
 		break; // view

feedlist.js

@@ -496,7 +496,7 @@ function mouse_up_handler(e) {
 	}
 }
 
-function request_counters() {
+function request_counters_real() {
 
 	try {
 		var query = "backend.php?op=rpc&subop=getAllCounters";
@@ -516,6 +516,28 @@ function request_counters() {
 				}
 			} });
 
+	} catch (e) {
+		exception_error("request_counters_real", e);
+	}
+}
+
+var counters_last_request = 0;
+
+function request_counters() {
+
+	try {
+
+		var date = new Date();
+		var timestamp = Math.round(date.getTime() / 1000);
+
+		if (timestamp - counters_last_request > 10) {
+			debug("scheduling request of counters...");
+			window.setTimeout("request_counters_real()", 100);
+			counters_last_request = timestamp;
+		} else {
+			debug("request_counters: rate limit reached: " + (timestamp - counters_last_request));
+		}
+
 	} catch (e) {
 		exception_error("request_counters", e);
 	}

viewfeed.js

@@ -325,7 +325,7 @@ function article_callback2(transport, id, feed_id) {
 			active_real_feed_id = feed_id;
 			active_post_id = id; 
 
-			//showArticleInHeadlines(id);	
+			showArticleInHeadlines(id);	
 
 			var reply = transport.responseXML.firstChild.firstChild;
 
@@ -367,7 +367,8 @@ function article_callback2(transport, id, feed_id) {
 				debug("parsing piggybacked counters: " + counters);
 				parse_counters(counters, false);
 			} else {
-				debug("counters container not found in reply");
+				debug("counters container not found in reply, requesting...");
+				request_counters();
 			}
 		}
 
@@ -426,8 +427,6 @@ function view(id, feed_id, skip_history) {
 		var crow = document.getElementById("RROW-" + id);
 		var article_is_unread = crow.className.match("Unread");
 
-		showArticleInHeadlines(id);
-
 		if (!cached_article) {
 
 			notify_progress("Loading, please wait...");
@@ -442,6 +441,8 @@ function view(id, feed_id, skip_history) {
 
 			query = query + "&mode=prefetch_old";
 			render_article(cached_article);
+			showArticleInHeadlines(id);
+
 		}
 
 		cache_expire();