open files and uris after initial wallet loading

src/main/java/com/sparrowwallet/sparrow/AppController.java

@@ -280,7 +280,7 @@ public class AppController implements Initializable {
 
         rootStack.setOnDragOver(event -> {
             if(event.getGestureSource() != rootStack && event.getDragboard().hasFiles()) {
-                event.acceptTransferModes(TransferMode.COPY_OR_MOVE);
+                event.acceptTransferModes(TransferMode.LINK);
             }
             event.consume();
         });

src/main/java/com/sparrowwallet/sparrow/AppServices.java

@@ -33,6 +33,7 @@ import javafx.beans.property.SimpleBooleanProperty;
 import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.concurrent.ScheduledService;
+import javafx.concurrent.Service;
 import javafx.concurrent.Task;
 import javafx.concurrent.Worker;
 import javafx.fxml.FXMLLoader;
@@ -859,6 +860,25 @@ public class AppServices {
         }
     }
 
+    public static void openFileUriArgumentsAfterWalletLoading(Window window) {
+        if(!argFiles.isEmpty() || !argUris.isEmpty()) {
+            Service<Void> service = new Service<>() {
+                @Override
+                protected Task<Void> createTask() {
+                    return new Task<>() {
+                        @Override
+                        protected Void call() {
+                            return null;
+                        }
+                    };
+                }
+            };
+            service.setExecutor(Storage.LoadWalletService.getSingleThreadedExecutor());
+            service.setOnSucceeded(event -> openFileUriArguments(window));
+            service.start();
+        }
+    }
+
     public static void openFileUriArguments(Window window) {
         openFiles(argFiles, window);
         argFiles.clear();

src/main/java/com/sparrowwallet/sparrow/SparrowDesktop.java

@@ -108,7 +108,7 @@ public class SparrowDesktop extends Application {
             }
         }
 
-        AppServices.openFileUriArguments(stage);
+        AppServices.openFileUriArgumentsAfterWalletLoading(stage);
 
         AppServices.get().start();
     }

src/main/java/com/sparrowwallet/sparrow/control/DownloadVerifierDialog.java

@@ -231,7 +231,7 @@ public class DownloadVerifierDialog extends Dialog<ButtonBar.ButtonData> {
     private void setupDrag(DialogPane dialogPane) {
         dialogPane.setOnDragOver(event -> {
             if(event.getGestureSource() != dialogPane && event.getDragboard().hasFiles()) {
-                event.acceptTransferModes(TransferMode.COPY_OR_MOVE);
+                event.acceptTransferModes(TransferMode.LINK);
             }
             event.consume();
         });