'Enable \'Save All\' if there are files to be saved'

def refresh_save_all_action(self):

    editorstack = self.get_current_editorstack()
    if editorstack:
        state = any(((finfo.editor.document().isModified() or finfo.newly_created) for finfo in editorstack.data))
        self.save_all_action.setEnabled(state)
