def on_save(self):
if self.__file is None:
chooser = Gtk.FileChooserNative.new(_('Save As…'), self,
Gtk.FileChooserAction.SAVE,
None, None)
response = chooser.run()
if response != Gtk.ResponseType.ACCEPT:
return
filename = chooser.get_filename()
self.__file = Gio.File.new_for_path(filename)
assert self.__file is not None
assert self.__file.get_path() is not None
source_file = GtkSource.File(location=self.__file)
cancellable = Gio.Cancellable()
cancel_handler = self.__menu_stack.status_area.connect(
'save-cancel-clicked', lambda b: cancellable.cancel())
self.__menu_stack.status_area.show_save_status()
saver = GtkSource.FileSaver(buffer=self.buffer, file=source_file)
# TODO: Show progress
saver.save_async(GLib.PRIORITY_DEFAULT, cancellable, None, None,
self.__finish_saving, cancel_handler)
