Update serial listener counter

microbit-grace · microbit-grace · commit 63281247852d · 2025-04-02T14:47:07.000+01:00
diff --git a/lib/usb.ts b/lib/usb.ts
@@ -488,7 +488,7 @@ class MicrobitWebUSBConnectionImpl
           this.startSerialInternal();
         }
         // Allows for reinstating serial after flashing.
-        this.addedListeners.serialdata = 1;
+        this.addedListeners.serialdata++;
         break;
       }
     }
@@ -498,7 +498,7 @@ class MicrobitWebUSBConnectionImpl
     switch (type as keyof SerialConnectionEventMap) {
       case "serialdata": {
         this.stopSerialInternal();
-        this.addedListeners.serialdata = 0;
+        this.addedListeners.serialdata--;
         break;
       }
     }

Original file line number	Diff line number	Diff line change
`@@ -488,7 +488,7 @@ class MicrobitWebUSBConnectionImpl`
`488`	`488`	`this.startSerialInternal();`
`489`	`489`	`}`
`490`	`490`	`// Allows for reinstating serial after flashing.`
`491`		`- this.addedListeners.serialdata = 1;`
	`491`	`+ this.addedListeners.serialdata++;`
`492`	`492`	`break;`
`493`	`493`	`}`
`494`	`494`	`}`
`@@ -498,7 +498,7 @@ class MicrobitWebUSBConnectionImpl`
`498`	`498`	`switch (type as keyof SerialConnectionEventMap) {`
`499`	`499`	`case "serialdata": {`
`500`	`500`	`this.stopSerialInternal();`
`501`		`- this.addedListeners.serialdata = 0;`
	`501`	`+ this.addedListeners.serialdata--;`
`502`	`502`	`break;`
`503`	`503`	`}`
`504`	`504`	`}`