Moderator: disable screen sharing

app/src/RoomClient.js

@@ -1432,6 +1432,26 @@ export default class RoomClient
 			peerActions.setStopPeerVideoInProgress(peerId, false));
 	}
 
+	async stopPeerScreenSharing(peerId)
+	{
+		logger.debug('stopPeerScreenSharing() [peerId:"%s"]', peerId);
+
+		store.dispatch(
+			peerActions.setStopPeerScreenSharingInProgress(peerId, true));
+
+		try
+		{
+			await this.sendRequest('moderator:stopScreenSharing', { peerId });
+		}
+		catch (error)
+		{
+			logger.error('stopPeerScreenSharing() failed: %o', error);
+		}
+
+		store.dispatch(
+			peerActions.setStopPeerScreenSharingInProgress(peerId, false));
+	}
+
 	async muteAllPeers()
 	{
 		logger.debug('muteAllPeers()');
@@ -2592,7 +2612,6 @@ export default class RoomClient
 					case 'moderator:stopVideo':
 					{
 						this.disableWebcam();
-						this.disableScreenSharing();
 
 						store.dispatch(requestActions.notify(
 							{
@@ -2605,6 +2624,21 @@ export default class RoomClient
 						break;
 					}
 
+					case 'moderator:stopScreenSharing':
+					{
+						this.disableScreenSharing();
+
+						store.dispatch(requestActions.notify(
+							{
+								text : intl.formatMessage({
+									id             : 'moderator.muteScreenSharingModerator',
+									defaultMessage : 'Moderator stopped your screen sharing'
+								})
+							}));
+
+						break;
+					}
+
 					case 'moderator:kick':
 					{
 						// Need some feedback

app/src/actions/peerActions.js

@@ -86,3 +86,10 @@ export const setStopPeerVideoInProgress = (peerId, flag) =>
 		type    : 'STOP_PEER_VIDEO_IN_PROGRESS',
 		payload : { peerId, flag }
 	});
+	
+export const setStopPeerScreenSharingInProgress = (peerId, flag) =>
+({
+	type    : 'STOP_PEER_SCREEN_SHARING_IN_PROGRESS',
+	payload : { peerId, flag }
+});
+

app/src/components/MeetingDrawer/ParticipantList/ListPeer.js

@@ -306,6 +306,33 @@ const ListPeer = (props) =>
 					</IconButton>
 				</Tooltip>
 			}
+			{ isModerator && screenConsumer && 
+				<Tooltip
+					title={intl.formatMessage({
+						id             : 'tooltip.muteScreenSharing',
+						defaultMessage : 'Mute participant screen share globally'
+					})}
+					placement='bottom'
+				>
+					<IconButton
+						className={classes.buttons}
+						style={{ color: green[500] }}
+						disabled={!isModerator || peer.stopPeerScreenSharingInProgress}
+						onClick={(e) =>
+						{
+							e.stopPropagation();
+
+							roomClient.stopPeerScreenSharing(peer.id);
+						}}
+					>
+						{ !screenConsumer.remotelyPaused ?
+							<ScreenIcon />
+							:
+							<ScreenOffIcon />
+						}
+					</IconButton>
+				</Tooltip>
+			}
 			{children}
 		</div>
 	);

app/src/reducers/peers.js

@@ -82,6 +82,11 @@ const peer = (state = initialState, action) =>
 				stopPeerVideoInProgress : action.payload.flag
 			};
 
+		case 'STOP_PEER_SCREEN_SHARING_IN_PROGRESS':
+			return {
+				...state,
+				stopPeerScreenSharingInProgress : action.payload.flag
+			};
 		default:
 			return state;
 	}
@@ -118,6 +123,7 @@ const peers = (state = initialState, action) =>
 		case 'REMOVE_PEER_ROLE':
 		case 'STOP_PEER_AUDIO_IN_PROGRESS':
 		case 'STOP_PEER_VIDEO_IN_PROGRESS':
+		case 'STOP_PEER_SCREEN_SHARING_IN_PROGRESS':
 		{
 			const oldPeer = state[action.payload.peerId];
 

app/src/translations/en.json

@@ -183,5 +183,6 @@
 	"moderator.clearChat": "Moderator cleared the chat",
 	"moderator.clearFiles": "Moderator cleared the files",
 	"moderator.muteAudio": "Moderator muted your audio",
-	"moderator.muteVideo": "Moderator muted your video"
+	"moderator.muteVideo": "Moderator muted your video",
+	"moderator.muteScreenSharing": "Moderator muted your screen sharing"
 }

server/lib/Room.js

@@ -1441,6 +1441,25 @@ class Room extends EventEmitter
 				break;
 			}
 
+			case 'moderator:stopScreenSharing':
+			{
+				if (!this._hasPermission(peer, MODERATE_ROOM))
+					throw new Error('peer not authorized');
+
+				const { peerId } = request.data;
+
+				const stopVideoPeer = this._peers[peerId];
+
+				if (!stopVideoPeer)
+					throw new Error(`peer with id "${peerId}" not found`);
+
+				this._notification(stopVideoPeer.socket, 'moderator:stopScreenSharing');
+
+				cb();
+
+				break;
+			}
+
 			case 'moderator:closeMeeting':
 			{
 				if (!this._hasPermission(peer, MODERATE_ROOM))