Add onSaveSlotUploaded to FS.syncFS callback

src/async_handler.cpp

@@ -275,12 +275,22 @@ bool AsyncHandler::IsFilePending(bool important, bool graphic) {
 }
 
 void AsyncHandler::SaveFilesystem() {
+#ifdef EMSCRIPTEN
+	// Save changed file system
+	EM_ASM({
+		FS.syncfs(function(err) {});
+	});
+#endif
+}
+
+void AsyncHandler::SaveFilesystem(int slot_id) {
 #ifdef EMSCRIPTEN
 	// Save changed file system
 	EM_ASM({
 		FS.syncfs(function(err) {
+			onSaveSlotUpdated($0);
 		});
-	});
+	}, slot_id);
 #endif
 }
 

src/async_handler.h

@@ -98,6 +98,7 @@ namespace AsyncHandler {
 	 * Only works on emscripten, noop on other platforms.
 	 */
 	void SaveFilesystem();
+	void SaveFilesystem(int slot_id); // for save sync callback
 }
 
 using FileRequestBinding = std::shared_ptr<int>;

src/scene_save.cpp

@@ -157,11 +157,7 @@ bool Scene_Save::Save(std::ostream& os, int slot_id, bool prepare_save) {
 	bool res = lcf::LSD_Reader::Save(os, save, lcf_engine, Player::encoding);
 
 	DynRpg::Save(slot_id);
-	AsyncHandler::SaveFilesystem();
-
-	EM_ASM({
-		onSaveSlotUpdated($0);
-	}, slot_id);
+	AsyncHandler::SaveFilesystem(slot_id);
 
 	return res;
 }