@NotNull
    @Override
    public GutterDraggableObject getDraggableObject() {
      return new GutterDraggableObject() {
        @Override
        public boolean copy(int line, VirtualFile file, int actionId) {
          myBookmark.myTarget = new OpenFileDescriptor(myBookmark.myTarget.getProject(), file, line, -1, true);
          myBookmark.updateHighlighter();
          return true;
        }
      };
    }
@NotNull
    @Override
    public GutterDraggableObject getDraggableObject()