book_element.py 文件源码

def _on_leave_notify(self, widget, event):
        """
        On leave notify remove css hover class
        :param widget: as Gtk.EventBox (can be None)
        :param event: as Gdk.Event (can be None)
        """
        self.box.get_style_context().remove_class("box_hover")
        self.play_img.get_style_context().remove_class("box_hover")
        if self.ui.current_track_element is not self and not self.selected:
            self.play_img.clear()