bring back update button, it makes async update request to the daemon

feedlist.js

@@ -732,10 +732,12 @@ function parse_counters(reply, scheduled_call) {
 
 			if (updated && feedlink) {
 				if (error) {
-					feedlink.title = "Error: " + error + " (" + updated + ")";
+					feedlink.title = __("Error:") + " " + error + " (" + updated + ")";
 				} else {
-					feedlink.title = "Updated: " + updated;
+					feedlink.title = __("Updated:") + " " + updated;
 				}
+			} else if (!updated && feedlink) {
+				feedlink.title = __("Updated:") + " " + __("Never");
 			}
 
 			if (feedupd) {

functions.php

@@ -2872,6 +2872,9 @@
 
 			$has_img = feed_has_icon($id);
 
+			if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
+				$last_updated = '';
+
 			$cv = array("id" => $id,
 				"updated" => $last_updated,
 				"counter" => $count,

modules/backend-rpc.php

@@ -1173,6 +1173,45 @@
 			return;
 		}
 
+		if ($subop == "scheduleFeedUpdate") {
+			$feed_id = db_escape_string($_REQUEST["id"]);
+			$is_cat = db_escape_string($_REQUEST['is_cat']);
+
+			$message = __("Your request could not be completed.");
+
+			if ($feed_id >= 0) {
+				if (!$is_cat) {
+					$message = __("Feed update has been scheduled.");
+
+					db_query($link, "UPDATE ttrss_feeds SET
+						last_update_started = '1970-01-01',
+						last_updated = '1970-01-01' WHERE id = '$feed_id' AND
+						owner_uid = ".$_SESSION["uid"]);
+
+				} else {
+					$message = __("Category update has been scheduled.");
+
+					if ($feed_id) 
+						$cat_query = "cat_id = '$feed_id'";
+					else
+						$cat_query = "cat_id IS NULL";
+
+					db_query($link, "UPDATE ttrss_feeds SET
+						last_update_started = '1970-01-01',
+						last_updated = '1970-01-01' WHERE $cat_query AND
+						owner_uid = ".$_SESSION["uid"]);
+				}
+			} else {
+				$message = __("Can't update this kind of feed.");
+			}
+
+			print "<rpc-reply>";
+			print "<message>$message</message>";
+			print "</rpc-reply>";
+
+			return;
+		}
+
 		print "<rpc-reply><error>Unknown method: $subop</error></rpc-reply>";
 	}
 ?>

tt-rss.js

@@ -1286,3 +1286,39 @@ function handle_rpc_reply(transport, scheduled_call) {
 	return true;
 }
 
+function scheduleFeedUpdate() {
+	try {
+
+		if (!getActiveFeedId()) {
+			alert(__("Please select some feed first."));
+			return;
+		}
+
+		var query = "?op=rpc&subop=scheduleFeedUpdate&id=" + 
+			param_escape(getActiveFeedId()) +
+			"&is_cat=" + param_escape(activeFeedIsCat());
+
+		console.log(query);
+
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+
+				if (transport.responseXML) {
+					var message = transport.responseXML.getElementsByTagName("message")[0];
+
+					if (message) {
+						notify_info(message.firstChild.nodeValue);
+						return;
+					}
+				}
+
+				notify_error("Error communicating with server.");
+
+			} });
+
+
+	} catch (e) {
+		exception_error("scheduleFeedUpdate", e);
+	}
+}

tt-rss.php

@@ -226,13 +226,9 @@
 			<option value="score"><?php echo __('Score') ?></option>
 		</select>
 
-		<?php if (defined('_ENABLE_FEED_DEBUGGING')) { ?>
-
-		<button name="update" onclick="return viewCurrentFeed('ForceUpdate')">
+		<button name="update" onclick="return scheduleFeedUpdate()">
 			<?php echo __('Update') ?></button>
 
-		<?php } ?>
-
 		<button onclick="return catchupCurrentFeed()">
 			<?php echo __('Mark as read') ?></button>
 

viewfeed.js

@@ -58,6 +58,10 @@ function headlines_callback2(transport, feed_cur_page) {
 			}
 		}
 
+		var update_btn = document.forms["main_toolbar_form"].update;
+
+		update_btn.disabled = !(feed_id >= 0 && !is_cat);
+
 		var ll = $('FLL-' + feed_id);
 
 		if (ll && ll.parentNode)