Send raise hand signaling message

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/java/com/nextcloud/talk/activities/CallActivity.java

@@ -416,27 +416,20 @@ public class CallActivity extends CallBaseActivity {
         raiseHandViewModel.setData(roomToken, isBreakoutRoom);
 
         raiseHandViewModel.getViewState().observe(this, viewState -> {
+            boolean raised = false;
             if (viewState instanceof RaiseHandViewModel.RaisedHandState) {
                 binding.lowerHandButton.setVisibility(View.VISIBLE);
+                raised = true;
             } else if (viewState instanceof RaiseHandViewModel.LoweredHandState) {
                 binding.lowerHandButton.setVisibility(View.GONE);
+                raised = false;
             }
 
-            // TODO: build&send raiseHand message (if not possible in RaiseHandViewModel, just do it here..)
-//        if (isConnectionEstablished() && peerConnectionWrapperList != null) {
-//            if (!hasMCU) {
-//                for (PeerConnectionWrapper peerConnectionWrapper : peerConnectionWrapperList) {
-//                    peerConnectionWrapper.raiseHand(...);
-//                }
-//            } else {
-//                for (PeerConnectionWrapper peerConnectionWrapper : peerConnectionWrapperList) {
-//                    if (peerConnectionWrapper.getSessionId().equals(webSocketClient.getSessionId())) {
-//                        peerConnectionWrapper.raiseHand(...);
-//                        break;
-//                    }
-//                }
-//            }
-//        }
+            if (isConnectionEstablished() && peerConnectionWrapperList != null) {
+                for (PeerConnectionWrapper peerConnectionWrapper : peerConnectionWrapperList) {
+                    peerConnectionWrapper.raiseHand(raised);
+                }
+            }
         });
 
         callRecordingViewModel = new ViewModelProvider(this, viewModelFactory).get((CallRecordingViewModel.class));

app/src/main/java/com/nextcloud/talk/webrtc/PeerConnectionWrapper.java

@@ -191,21 +191,17 @@ public class PeerConnectionWrapper {
     }
 
     public void raiseHand(Boolean raise) {
-        // TODO: build&send raiseHand message (either here or via RaiseHandViewModel)
-//        NCMessagePayload ncMessagePayload = new NCMessagePayload();
-//        ncMessagePayload.setState(raise);
-//        ncMessagePayload.setTimestamp(System.currentTimeMillis());
-//
-//
-//        NCSignalingMessage ncSignalingMessage = new NCSignalingMessage();
-////        ncSignalingMessage.setFrom();
-//        ncSignalingMessage.setTo(sessionId);
-////        ncSignalingMessage.setSid();
-//        ncSignalingMessage.setType("raiseHand");
-//        ncSignalingMessage.setPayload(ncMessagePayload);
-//        ncSignalingMessage.setRoomType(videoStreamType);
-//
-//        signalingMessageSender.send(ncSignalingMessage);
+        NCMessagePayload ncMessagePayload = new NCMessagePayload();
+        ncMessagePayload.setState(raise);
+        ncMessagePayload.setTimestamp(System.currentTimeMillis());
+
+        NCSignalingMessage ncSignalingMessage = new NCSignalingMessage();
+        ncSignalingMessage.setTo(sessionId);
+        ncSignalingMessage.setType("raiseHand");
+        ncSignalingMessage.setPayload(ncMessagePayload);
+        ncSignalingMessage.setRoomType(videoStreamType);
+
+        signalingMessageSender.send(ncSignalingMessage);
     }
 
     /**