Cancel dialog close event

Flow
1

Hey,

I’m currently in the need for something which is pretty similar to the CrudEditor (best case this component should be useable without the CRUD Grid somehow).
While developing it I came into the need to display the confirm dialog when data changed and the user wants to change the dialog.
I successfully implemented this for the cancel button but sadly for closing it with ESC button this doesnt work:

addDialogCloseActionListener(e -> {
            if(this.form.getBinder().hasChanges()) {
                ConfirmDialog confirmDialog = new ConfirmDialog();
                confirmDialog.setHeader(getTranslation("crud.confirm.cancel.title"));
                confirmDialog.setText(getTranslation("crud.confirm.cancel.content"));
                confirmDialog.setConfirmText(getTranslation("crud.confirm.cancel.button.confirm"));
                confirmDialog.setCancelText(getTranslation("crud.confirm.cancel.button.dismiss"));
                confirmDialog.setCancelable(true);
                confirmDialog.open();

                confirmDialog.addCancelListener(cancelEvent -> confirmDialog.close());
                confirmDialog.addConfirmListener(confirmEvent -> {
                    confirmDialog.close();
                    close();
                });

                return;
            }

            close();
        });

binding this code to the cancel button works but not for the CloseActionListener. The CrudEditor has the functionality to show the confirm dialog on esc close.
How I do get this working? Help appreciated.