add extra hook for media sync start/stop

qt/aqt/gui_hooks.py

@@ -721,6 +721,30 @@ class _MediaSyncDidProgressHook:
 media_sync_did_progress = _MediaSyncDidProgressHook()
 
 
+class _MediaSyncDidStartOrStopHook:
+    _hooks: List[Callable[[bool], None]] = []
+
+    def append(self, cb: Callable[[bool], None]) -> None:
+        """(running: bool)"""
+        self._hooks.append(cb)
+
+    def remove(self, cb: Callable[[bool], None]) -> None:
+        if cb in self._hooks:
+            self._hooks.remove(cb)
+
+    def __call__(self, running: bool) -> None:
+        for hook in self._hooks:
+            try:
+                hook(running)
+            except:
+                # if the hook fails, remove it
+                self._hooks.remove(hook)
+                raise
+
+
+media_sync_did_start_or_stop = _MediaSyncDidStartOrStopHook()
+
+
 class _OverviewDidRefreshHook:
     """Allow to update the overview window. E.g. add the deck name in the
         title."""

qt/aqt/mediasync.py

@@ -76,6 +76,7 @@ class MediaSyncer:
         self._log: List[LogEntryWithTime] = []
         self._want_stop = False
         hooks.rust_progress_callback.append(self._on_rust_progress)
+        gui_hooks.media_sync_did_start_or_stop.append(self._on_start_stop)
 
     def _on_rust_progress(self, proceed: bool, progress: Progress) -> bool:
         if progress.kind != ProgressKind.MediaSyncProgress:
@@ -116,7 +117,7 @@ class MediaSyncer:
         self._log_and_notify(_("Media sync starting..."))
         self._sync_state = MediaSyncState()
         self._want_stop = False
-        self._on_start_stop()
+        gui_hooks.media_sync_did_start_or_stop(True)
 
         (media_folder, media_db) = media_paths_from_col_path(self.mw.col.path)
 
@@ -144,7 +145,7 @@ class MediaSyncer:
 
     def _on_finished(self, future: Future) -> None:
         self._sync_state = None
-        self._on_start_stop()
+        gui_hooks.media_sync_did_start_or_stop(False)
 
         exc = future.exception()
         if exc is not None:
@@ -200,8 +201,8 @@ class MediaSyncer:
     def is_syncing(self) -> bool:
         return self._sync_state is not None
 
-    def _on_start_stop(self):
-        self.mw.toolbar.set_sync_active(self.is_syncing())
+    def _on_start_stop(self, running: bool):
+        self.mw.toolbar.set_sync_active(running)
 
     def show_sync_log(self):
         aqt.dialogs.open("sync_log", self.mw, self)

qt/tools/genhooks_gui.py

@@ -269,6 +269,7 @@ hooks = [
     Hook(
         name="media_sync_did_progress", args=["entry: aqt.mediasync.LogEntryWithTime"],
     ),
+    Hook(name="media_sync_did_start_or_stop", args=["running: bool"]),
     # Adding cards
     ###################
     Hook(