- Refactor the Web.ShareMode client_cancel variable to be Web.stop_q, a thread-safe queue that communicates to both share and receive mode when the user stops the server. In share mode this still stops sending the file. In receive mode, if there's a transfer in progress, it cancels it in the middle, and doesn't end up saving that file

- In receive mode, make the receive mode dir right before saving a file (so if it doesn't complete, don't make an empty dir)
- Minor UX tweak: resizing the window stretches the History widget first

onionshare_gui/mode/receive_mode/__init__.py

@@ -83,7 +83,7 @@ class ReceiveMode(Mode):
         # Wrapper layout
         self.wrapper_layout = QtWidgets.QHBoxLayout()
         self.wrapper_layout.addLayout(self.main_layout)
-        self.wrapper_layout.addWidget(self.history)
+        self.wrapper_layout.addWidget(self.history, stretch=1)
         self.setLayout(self.wrapper_layout)
 
     def get_stop_server_shutdown_timeout_text(self):
@@ -198,6 +198,18 @@ class ReceiveMode(Mode):
         self.history.update_completed()
         self.history.update_in_progress()
 
+    def handle_request_upload_canceled(self, event):
+        """
+        Handle REQUEST_UPLOAD_CANCELED event.
+        """
+        self.history.update(event["data"]["id"], {
+            'action': 'canceled'
+        })
+        self.history.completed_count += 1
+        self.history.in_progress_count -= 1
+        self.history.update_completed()
+        self.history.update_in_progress()
+
     def on_reload_settings(self):
         """
         We should be ok to re-enable the 'Start Receive Mode' button now.