Set inputShouldShow to false when all websockets disconnect (#224)

photon-server/src/main/java/org/photonvision/Main.java

@@ -140,7 +140,7 @@ public class Main {
             logger.error("Failed to parse command-line options!", e);
         }
 
-        CVMat.enablePrint(true);
+        CVMat.enablePrint(false);
         PipelineProfiler.enablePrint(false);
 
         var logLevel = printDebugLogs ? LogLevel.TRACE : LogLevel.DEBUG;

photon-server/src/main/java/org/photonvision/server/SocketHandler.java

@@ -86,9 +86,16 @@ public class SocketHandler {
         users.remove(context);
 
         if (users.size() == 0) {
+            logger.info("All websocket connections are closed. Setting inputShouldShow to false.");
+
+            // cameraIndex -1 means the event is received by all cameras
             dcService.publishEvent(
                     new IncomingWebSocketEvent<>(
-                            DataChangeDestination.DCD_ACTIVEPIPELINESETTINGS, "inputShouldShow", false));
+                            DataChangeDestination.DCD_ACTIVEPIPELINESETTINGS,
+                            "inputShouldShow",
+                            false,
+                            -1,
+                            null));
         }
     }
 

photon-server/src/main/java/org/photonvision/vision/processes/VisionModuleChangeSubscriber.java

@@ -53,7 +53,9 @@ public class VisionModuleChangeSubscriber extends DataChangeSubscriber {
         if (event instanceof IncomingWebSocketEvent) {
             var wsEvent = (IncomingWebSocketEvent<?>) event;
 
-            if (wsEvent.cameraIndex != null && wsEvent.cameraIndex == parentModule.moduleIndex) {
+            // Camera index -1 means a "multicast event" (i.e. the event is received by all cameras)
+            if (wsEvent.cameraIndex != null
+                    && (wsEvent.cameraIndex == parentModule.moduleIndex || wsEvent.cameraIndex == -1)) {
                 logger.trace("Got PSC event - propName: " + wsEvent.propertyName);
 
                 var propName = wsEvent.propertyName;