Fix FileOpenEvent with custom URL not being handled

Author: phw

picard/tagger.py

@@ -801,14 +801,19 @@ def event(self, event):
         if isinstance(event, thread.ProxyToMainEvent):
             event.run()
         elif event.type() == QtCore.QEvent.Type.FileOpen:
-            file = event.file()
-            self.add_paths([file])
-            if IS_HAIKU:
-                self.bring_tagger_front()
-            # We should just return True here, except that seems to
-            # cause the event's sender to get a -9874 error, so
-            # apparently there's some magic inside QFileOpenEvent...
-            return 1
+            url = event.url()
+            log.debug('Received file open event: %r', url)
+            if url.isLocalFile():
+                self.add_paths([url.toLocalFile()])
+                if IS_HAIKU:
+                    self.bring_tagger_front()
+                # We should just return True here, except that seems to
+                # cause the event's sender to get a -9874 error, so
+                # apparently there's some magic inside QFileOpenEvent...
+                return 1
+            elif url.scheme() == PICARD_CUSTOM_PROTOCOL:
+                self.browser_integration.url_handler(url)
+                return 1
         return super().event(event)
 
     def _file_loaded(self, file, target=None, remove_file=False, unmatched_files=None):