Check the Portrait / Landscape mode on mobile device with ssm.js ( http://www.simplestatemanager.com/ )

ssm-checkMode.js

ssm.addConfigOption({name:"orientation", test: function(){
    //landscape mode
    if(this.state.orientation === "landscape" && window.innerWidth >= window.innerHeight){
        console.log('landscape');
        return true;
    }
    //portrait mode
    else if (this.state.orientation === "portrait" && window.innerWidth <= window.innerHeight){
        console.log('portrait');
        return true;
    }
    else {
        return false;
    }
}});



//How to use it
ssm.addStates([
{
    id: 'tablet',
    minWidth: 768,
    maxWidth: 1023,
    orientation: 'portrait',
    onEnter: function(){
        console.log('enter tablet portrait mode');
    }
},{
    id: 'tablet',
    minWidth: 768,
    maxWidth: 1023,
    orientation: 'landscape',
    onEnter: function(){
        console.log('enter tablet landscape mode');
    }
}
]);