history_item.py 文件源码

def _get_thumb_path(self):
        result = None
        if (
            self.kind != HistoryItemKind.FILE and
            self.kind != HistoryItemKind.IMAGE
        ): return result
        filename = os.path.expanduser(self._raw)
        if not os.path.exists(filename): return result

        uri = 'file://%s' % filename
        file_ = Gio.file_new_for_uri(uri)

        try:
            info = file_.query_info(
                'standard::content-type,thumbnail::path',
                Gio.FileQueryInfoFlags.NONE
            )
            path = info.get_attribute_byte_string('thumbnail::path')
            self._content_type = info.get_content_type()
            is_image = self._content_type.startswith('image')

            if path:
                result = path
            elif is_image:
                try:
                    GdkPixbuf.Pixbuf.new_from_file_at_scale(
                        filename,
                        80,
                        80,
                        False
                    )
                except GLib.Error:
                    pass
                else:
                    result = filename
            else:
                pass
        except GLib.Error:
            pass
        finally:
            return result