How to use it better in mobile devices?

[LaoliangGitHub]

I use your plug-in in mobile devices, but how can I implement the adaptation?
I added my own judgement, but the result of the horizontal screen loading was different from the result of the vertical screen loading. Excuse me, how can I solve this problem?

if (window.orientation === 180 || window.orientation === 0) {
$sigdiv.jSignature({width:"100%",height:"100%"});
$sigdiv.jSignature("destroy");
}
if (window.orientation === 90 || window.orientation === -90 ){
$sigdiv.jSignature({width:"100%",height:"65%"});
$sigdiv.jSignature("destroy");
}