Callback for the shot open button

        :returns: None
        :rtype: None
        :raises: None

def shot_save_callback(self, *args, **kwargs):
        """Callback for the shot open button

        :returns: None
        :rtype: None
        :raises: None
        """
        tasksel = self.browser.shotbrws.selected_indexes(2)
        if not tasksel or not tasksel[0].isValid():
            self.statusbar.showMessage('No task selected! Cannot save!')
            return

        taskitem = tasksel[0].internalPointer()
        task = taskitem.internal_data()
        rtype = djadapter.RELEASETYPES['work']
        descriptor = self.shot_descriptor_le.text()
        if not self.check_selection_for_save(task, rtype, descriptor):
            return

        tfi = TaskFileInfo.get_next(task=task, releasetype=rtype,
                                    typ=self._filetype, descriptor=descriptor)
        self._save_tfi(tfi)