make forward_message be friendly with the RVS stuffs

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/stores/RoomViewStore.js

@@ -55,6 +55,8 @@ const INITIAL_STATE = {
     //    pixelOffset: the number of pixels the window is scrolled down
     //        from the focussedEvent.
     scrollStateMap: {},
+
+    forwardingEvent: null,
 };
 
 /**
@@ -116,6 +118,11 @@ class RoomViewStore extends Store {
             case 'update_scroll_state':
                 this._updateScrollState(payload);
                 break;
+            case 'forward_event':
+                this._setState({
+                    forwardingEvent: payload.event,
+                });
+                break;
         }
     }
 
@@ -127,6 +134,7 @@ class RoomViewStore extends Store {
                 initialEventId: payload.event_id,
                 initialEventPixelOffset: undefined,
                 isInitialEventHighlighted: payload.highlighted,
+                forwardingEvent: null,
                 roomLoading: false,
                 roomLoadError: null,
             };
@@ -141,6 +149,14 @@ class RoomViewStore extends Store {
                 }
             }
 
+            if (this._state.forwardingEvent) {
+                dis.dispatch({
+                    action: 'send_event',
+                    room_id: newState.roomId,
+                    event: this._state.forwardingEvent,
+                });
+            }
+
             this._setState(newState);
         } else if (payload.room_alias) {
             // Resolve the alias and then do a second dispatch with the room ID acquired
@@ -276,6 +292,11 @@ class RoomViewStore extends Store {
     getJoinError() {
         return this._state.joinError;
     }
+
+    // The mxEvent if one is about to be forwarded
+    getForwardingEvent() {
+        return this._state.forwardingEvent;
+    }
 }
 
 let singletonRoomViewStore = null;