[FIX] Unnecessary meteor.defer on openRoom (#14396)

app/ui-utils/client/lib/openRoom.js

@@ -42,87 +42,83 @@ function replaceCenterDomBy(dom) {
 }
 
 export const openRoom = function(type, name) {
-	Session.set('openedRoom', null);
-
-	return Meteor.defer(() =>
-		window.currentTracker = Tracker.autorun(function(c) {
-			const user = Meteor.user();
-			if ((user && user.username == null) || (user == null && settings.get('Accounts_AllowAnonymousRead') === false)) {
-				BlazeLayout.render('main');
-				return;
-			}
+	window.currentTracker = Tracker.autorun(function(c) {
+		const user = Meteor.user();
+		if ((user && user.username == null) || (user == null && settings.get('Accounts_AllowAnonymousRead') === false)) {
+			BlazeLayout.render('main');
+			return;
+		}
 
-			if (RoomManager.open(type + name).ready() !== true) {
-				replaceCenterDomBy(getDomOfLoading());
-				return;
-			}
-			if (window.currentTracker) {
-				window.currentTracker = undefined;
-			}
-			c.stop();
-
-			const room = roomTypes.findRoom(type, name, user);
-			if (room == null) {
-				if (type === 'd') {
-					Meteor.call('createDirectMessage', name, function(error) {
-						if (!error) {
-							RoomManager.close(type + name);
-							return openRoom('d', name);
-						} else {
-							Session.set('roomNotFound', { type, name, error });
-							BlazeLayout.render('main', { center: 'roomNotFound' });
-							return;
-						}
-					});
-				} else {
-					Meteor.call('getRoomByTypeAndName', type, name, function(error, record) {
-						if (error) {
-							Session.set('roomNotFound', { type, name, error });
-							return BlazeLayout.render('main', { center: 'roomNotFound' });
-						} else {
-							Rooms.upsert({ _id: record._id }, _.omit(record, '_id'));
-							RoomManager.close(type + name);
-							return openRoom(type, name);
-						}
-					});
-				}
-				return;
+		if (RoomManager.open(type + name).ready() !== true) {
+			replaceCenterDomBy(getDomOfLoading());
+			return;
+		}
+		if (window.currentTracker) {
+			window.currentTracker = undefined;
+		}
+		c.stop();
+
+		const room = roomTypes.findRoom(type, name, user);
+		if (room == null) {
+			if (type === 'd') {
+				Meteor.call('createDirectMessage', name, function(error) {
+					if (!error) {
+						RoomManager.close(type + name);
+						return openRoom('d', name);
+					} else {
+						Session.set('roomNotFound', { type, name, error });
+						BlazeLayout.render('main', { center: 'roomNotFound' });
+						return;
+					}
+				});
+			} else {
+				Meteor.call('getRoomByTypeAndName', type, name, function(error, record) {
+					if (error) {
+						Session.set('roomNotFound', { type, name, error });
+						return BlazeLayout.render('main', { center: 'roomNotFound' });
+					} else {
+						Rooms.upsert({ _id: record._id }, _.omit(record, '_id'));
+						RoomManager.close(type + name);
+						return openRoom(type, name);
+					}
+				});
 			}
+			return;
+		}
 
-			const roomDom = RoomManager.getDomOfRoom(type + name, room._id);
-			const mainNode = replaceCenterDomBy(roomDom);
+		const roomDom = RoomManager.getDomOfRoom(type + name, room._id);
+		const mainNode = replaceCenterDomBy(roomDom);
 
-			if (mainNode) {
-				if (roomDom.classList.contains('room-container')) {
-					roomDom.querySelector('.messages-box > .wrapper').scrollTop = roomDom.oldScrollTop;
-				}
+		if (mainNode) {
+			if (roomDom.classList.contains('room-container')) {
+				roomDom.querySelector('.messages-box > .wrapper').scrollTop = roomDom.oldScrollTop;
 			}
+		}
 
-			Session.set('openedRoom', room._id);
-			RoomManager.openedRoom = room._id;
-
-			fireGlobalEvent('room-opened', _.omit(room, 'usernames'));
-
-			Session.set('editRoomTitle', false);
-			RoomManager.updateMentionsMarksOfRoom(type + name);
-			Meteor.setTimeout(() => readMessage.readNow(), 2000);
-			// KonchatNotification.removeRoomNotification(params._id)
-			// update user's room subscription
-			const sub = ChatSubscription.findOne({ rid: room._id });
-			if (sub && sub.open === false) {
-				Meteor.call('openRoom', room._id, function(err) {
-					if (err) {
-						return handleError(err);
-					}
-				});
-			}
+		Session.set('openedRoom', room._id);
+		RoomManager.openedRoom = room._id;
+
+		fireGlobalEvent('room-opened', _.omit(room, 'usernames'));
+
+		Session.set('editRoomTitle', false);
+		RoomManager.updateMentionsMarksOfRoom(type + name);
+		Meteor.setTimeout(() => readMessage.readNow(), 2000);
+		// KonchatNotification.removeRoomNotification(params._id)
+		// update user's room subscription
+		const sub = ChatSubscription.findOne({ rid: room._id });
+		if (sub && sub.open === false) {
+			Meteor.call('openRoom', room._id, function(err) {
+				if (err) {
+					return handleError(err);
+				}
+			});
+		}
 
-			if (FlowRouter.getQueryParam('msg')) {
-				const msg = { _id: FlowRouter.getQueryParam('msg'), rid: room._id };
-				RoomHistoryManager.getSurroundingMessages(msg);
-			}
+		if (FlowRouter.getQueryParam('msg')) {
+			const msg = { _id: FlowRouter.getQueryParam('msg'), rid: room._id };
+			RoomHistoryManager.getSurroundingMessages(msg);
+		}
 
-			return callbacks.run('enter-room', sub);
-		})
-	);
+		return callbacks.run('enter-room', sub);
+	});
 };