Stop camera from turning on when returning to a group call.

app/src/main/java/org/thoughtcrime/securesms/service/webrtc/GroupConnectedActionProcessor.java

@@ -1,6 +1,9 @@
 package org.thoughtcrime.securesms.service.webrtc;
 
+import android.os.ResultReceiver;
+
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 import com.annimon.stream.Stream;
 
@@ -28,6 +31,14 @@ public class GroupConnectedActionProcessor extends GroupActionProcessor {
     super(webRtcInteractor, TAG);
   }
 
+  @Override
+  protected @NonNull WebRtcServiceState handleIsInCallQuery(@NonNull WebRtcServiceState currentState, @Nullable ResultReceiver resultReceiver) {
+    if (resultReceiver != null) {
+      resultReceiver.send(1, null);
+    }
+    return currentState;
+  }
+
   @Override
   protected @NonNull WebRtcServiceState handleGroupLocalDeviceStateChanged(@NonNull WebRtcServiceState currentState) {
     Log.i(tag, "handleGroupLocalDeviceStateChanged():");

app/src/main/java/org/thoughtcrime/securesms/service/webrtc/GroupJoiningActionProcessor.java

@@ -1,6 +1,9 @@
 package org.thoughtcrime.securesms.service.webrtc;
 
+import android.os.ResultReceiver;
+
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 import org.signal.ringrtc.CallException;
 import org.signal.ringrtc.GroupCall;
@@ -27,6 +30,14 @@ public class GroupJoiningActionProcessor extends GroupActionProcessor {
     callSetupDelegate = new CallSetupActionProcessorDelegate(webRtcInteractor, TAG);
   }
 
+  @Override
+  protected @NonNull WebRtcServiceState handleIsInCallQuery(@NonNull WebRtcServiceState currentState, @Nullable ResultReceiver resultReceiver) {
+    if (resultReceiver != null) {
+      resultReceiver.send(1, null);
+    }
+    return currentState;
+  }
+
   @Override
   protected @NonNull WebRtcServiceState handleGroupLocalDeviceStateChanged(@NonNull WebRtcServiceState currentState) {
     Log.i(tag, "handleGroupLocalDeviceStateChanged():");