关于javascript:如何屏蔽dplayer右键上下文菜单vue

`

mounted() {
    document.querySelector("#dplayer").oncontextmenu =  () => {
        document.querySelector(".dplayer-menu").style.display = "none";
        document.querySelector(".dplayer-mask").style.display = "none";
        return false;
    };
}

`