softwarepane.py 文件源码

def on_search_entry_key_press_event(self, event):
        """callback when a key is pressed in the search entry widget"""
        if not self.is_applist_view_showing():
            return
        if ((event.keyval == Gdk.keyval_from_name("Down") or
            event.keyval == Gdk.keyval_from_name("KP_Down")) and
            self.is_applist_view_showing() and
            len(self.app_view.tree_view.get_model()) > 0):
            # select the first item in the applist search result
            self.app_view.tree_view.grab_focus()
            self.app_view.tree_view.set_cursor(Gtk.TreePath(),
                                                   None, False)