reemit Room.timeline events correctly

lib/models/room.js

@@ -163,6 +163,7 @@ function Room(roomId, opts) {
     // all our per-room timeline lists. the first one is the unfiltered ones;
     // the subsequent ones are the filtered ones in no particular order.
     this._timelineLists = [ new EventTimelineList(roomId, this, opts) ];
+    reEmit(this, this._timelineLists[0], [ "Room.timeline" ]);
 
     this._fixUpLegacyTimelineFields();
 
@@ -453,6 +454,7 @@ Room.prototype.addFilteredTimelineList = function(filter) {
             filter: filter,
         }
     );
+    reEmit(this, timelineList, [ "Room.timeline" ]);
     this._filteredTimelineLists[filter.filterId] = timelineList;
     this._timelineLists.push(timelineList);
 };
@@ -1194,6 +1196,25 @@ function calculateRoomName(room, userId, ignoreRoomNameEvent) {
     }
 }
 
+// FIXME: copypasted from sync.js
+function reEmit(reEmitEntity, emittableEntity, eventNames) {
+    utils.forEach(eventNames, function(eventName) {
+        // setup a listener on the entity (the Room, User, etc) for this event
+        emittableEntity.on(eventName, function() {
+            // take the args from the listener and reuse them, adding the
+            // event name to the arg list so it works with .emit()
+            // Transformation Example:
+            // listener on "foo" => function(a,b) { ... }
+            // Re-emit on "thing" => thing.emit("foo", a, b)
+            var newArgs = [eventName];
+            for (var i = 0; i < arguments.length; i++) {
+                newArgs.push(arguments[i]);
+            }
+            reEmitEntity.emit.apply(reEmitEntity, newArgs);
+        });
+    });
+}
+
 /**
  * The Room class.
  */