make sure the "closed" event comes. It will not come from the C backend, so we generate it in the racket-webview-qt.rkt module"

example1/example.rkt

@@ -113,9 +113,7 @@
       (unless (eq? counter-thread #f)
         (send this message 'warning "Cannot close window"
               "Cannot close this window while the counter runs"))
-      (if (eq? counter-thread #f)
-          (super can-close?)
-          #f))
+      (eq? counter-thread #f))
 
     (define start-stop-btn #f)
 

racket-webview-qt.rkt

@@ -746,7 +746,14 @@
 
 (define (rkt-webview-close handle)
   (rkt_webview_close (rkt-wv-win handle))
-  ;(enqueue! (rkt-wv-evt-queue handle) 'quit)
+  (let ((evt-cb (hash-ref evt-cb-hash (rkt-wv-win handle) (λ args #t))))
+    (let ((evt (format
+                (string-append "{ \"event\": \"closed\", "
+                               "  \"elaped\": -1.0, "
+                               "  \"evt-id\": -98832, "
+                               "  \"timestamp\":  ~a }")
+                (current-milliseconds))))
+      (evt-cb evt)))
   (set-rkt-wv-valid! handle #f)
   (hash-remove! evt-cb-hash (rkt-wv-win handle))
   (hash-remove! rkt-wv-store (rkt-wv-win handle))

wv-window.rkt

@@ -248,11 +248,11 @@
       #t)
 
     (define/public (can-close?)
-      (when quit-on-close
-        (send this quit))
       #t)
 
     (define/public (closed)
+      (when quit-on-close
+        (send this quit))
       #t)
 
     (define/public (js-event js-event)