SilentComics/Strip

/**
 * Strip keyboard support for image navigation.
 */

( function( $ ) {
    $( document ).on( "keydown.strip", function( e ) {
        var url = false;

        // Left arrow key code.
        if ( 37 === e.which ) {
            url = $( ".previous a" ).attr( "href" );

        // Right arrow key code.
        } else if ( 39 === e.which ) {
            url = $( ".next a" ).attr( "href" );

        // Other key code.
        } else {
            return;
        }

        if ( url && ! $( "textarea, input" ).is( ":focus" ) ) {
            window.location = url;
            }
        }
    );
} ( jQuery ));