update amount of subscribed feeds in runtime-info (to invalidate feedlist cache)

feedlist.js

@@ -36,7 +36,7 @@ function render_feedlist(data) {
 		var f = document.getElementById("feeds-frame");
 		f.innerHTML = data;
 		cache_invalidate("FEEDLIST");
-		cache_inject("FEEDLIST", data);
+		cache_inject("FEEDLIST", data, getInitParam("num_feeds"));
 		feedlist_init();
 
 	} catch (e) {

functions.php

@@ -3002,12 +3002,28 @@
 
 		print "<param key=\"sync_counters\" value=\"1\"/>";
 
+		$result = db_query($link, "SELECT COUNT(*) AS cf FROM
+			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
+
+		$num_feeds = db_fetch_result($result, 0, "cf");
+
+		print "<param key=\"num_feeds\" value=\"".
+			(int)$num_feeds. "\"/>";
+
 		print "</init-params>";
 	}
 
 	function print_runtime_info($link) {
 		print "<runtime-info>";
 
+		$result = db_query($link, "SELECT COUNT(*) AS cf FROM
+			ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
+
+		$num_feeds = db_fetch_result($result, 0, "cf");
+
+		print "<param key=\"num_feeds\" value=\"".
+			(int)$num_feeds. "\"/>";
+
 		if (ENABLE_UPDATE_DAEMON) {
 			print "<param key=\"daemon_is_running\" value=\"".
 				sprintf("%d", file_is_locked("update_daemon.lock")) . "\"/>";

tt-rss.js

@@ -510,7 +510,7 @@ function init_second_stage() {
 		daemon_refresh_only = getInitParam("daemon_refresh_only") == 1;
 		feeds_sort_by_unread = getInitParam("feeds_sort_by_unread") == 1;
 
-		var fl = cache_find("FEEDLIST");
+		var fl = cache_find_param("FEEDLIST", getInitParam("num_feeds"));
 
 		if (fl) {
 			render_feedlist(fl);
@@ -737,6 +737,10 @@ function parse_runtime_info(elem) {
 
 		debug("RI: " + k + " => " + v);
 
+		if (k == "num_feeds") {
+			init_params[k] = v;					
+		}
+
 		if (k == "new_version_available") {
 			var icon = document.getElementById("newVersionIcon");
 			if (icon) {