def on_main_window_drag_data_received(self, window, drag_context, x, y,<EOL>data, info, time):
if not self.profile:<EOL><INDENT>return<EOL><DEDENT>if info == TargetInfo.URI_LIST:<EOL><INDENT>uris = data.get_uris()<EOL>source_paths = util.uris_to_paths(uris)<EOL>if source_paths:<EOL><INDENT>self.upload_page.upload_files(source_paths)<EOL><DEDENT><DEDENT>
从其它程序拖放目录/文件, 以便上传.

        这里, 会弹出一个选择目标文件夹的对话框