Deleting UI Object fix

FloatingSpace/CircularMenuItem.js

@@ -279,7 +279,11 @@ function newCircularMenuItem () {
       /* A Click during confirmation executes the pre-defined action. */
       if (temporaryStatus === STATUS_WAITING_CONFIRMATION || temporaryStatus === STATUS_PRIMARY_WORK_DONE) {
         executeAction()
-        setStatus(thisObject.workDoneLabel, UI_COLOR.PATINATED_TURQUOISE, 100, STATUS_SECONDARY_WORK_DONE)
+        if (thisObject.workDoneLabel !== undefined) {
+          setStatus(thisObject.workDoneLabel, UI_COLOR.PATINATED_TURQUOISE, 100, STATUS_SECONDARY_WORK_DONE)
+        } else {
+          setStatus('Done', UI_COLOR.PATINATED_TURQUOISE, 100, STATUS_SECONDARY_WORK_DONE)
+        }
         return
       }
     }

FloatingSpace/CircularProgressBar.js

@@ -31,7 +31,9 @@ function newCircularProgressBar () {
 
   function finalize () {
     let key = thisObject.payload.node.name + '-' + thisObject.payload.node.type + '-' + thisObject.payload.node.id
-    systemEventHandler.stopListening(key, eventSubscriptionIdHeartbeat)
+    if (eventSubscriptionIdHeartbeat !== undefined) {
+      systemEventHandler.stopListening(key, eventSubscriptionIdHeartbeat)
+    }
 
     thisObject.container = undefined
     thisObject.payload = undefined

FloatingSpace/UiObject.js

@@ -120,8 +120,13 @@ function newUiObject () {
 
   function finalize () {
     let key = thisObject.payload.node.name + '-' + thisObject.payload.node.type + '-' + thisObject.payload.node.id
-    systemEventHandler.stopListening(key, eventSubscriptionIdOnRunning, 'UiObject')
-    systemEventHandler.stopListening(key, eventSubscriptionIdOnStopped, 'UiObject')
+
+    if (eventSubscriptionIdOnRunning !== undefined) {
+      systemEventHandler.stopListening(key, eventSubscriptionIdOnRunning, 'UiObject')
+    }
+    if (eventSubscriptionIdOnStopped !== undefined) {
+      systemEventHandler.stopListening(key, eventSubscriptionIdOnStopped, 'UiObject')
+    }
 
     thisObject.container.eventHandler.stopListening(selfFocusEventSubscriptionId)
     thisObject.container.eventHandler.stopListening(selfNotFocusEventSubscriptionId)

SystemEventHandler.js

@@ -44,7 +44,9 @@ function newSystemEventHandler () {
       responseWaiters.set(command.callerId, responseCallBack)
     }
 
-    WEB_SOCKETS_CONNECTION.send(JSON.stringify(command))
+    if (WEB_SOCKETS_CONNECTION.readyState === 1) { // 1 means connected and ready.
+      WEB_SOCKETS_CONNECTION.send(JSON.stringify(command))
+    }
   }
 
   function createEventHandler (eventHandlerName, callerId, responseCallBack) {