wp-content/themes/twentyfifteen/js/keyboard-image-navigation.js

   1 /**
   2  * Twenty Fifteen keyboard support for image navigation.
   3  */
   4
   5 ( function( $ ) {
   6         $( document ).on( 'keydown.twentyfifteen', function( e ) {
   7                 var url = false;
   8
   9                 // Left arrow key code.
  10                 if ( e.which === 37 ) {
  11                         url = $( '.nav-previous a' ).attr( 'href' );
  12
  13                 // Right arrow key code.
  14                 } else if ( e.which === 39 ) {
  15                         url = $( '.nav-next a' ).attr( 'href' );
  16                 }
  17
  18                 if ( url && ( ! $( 'textarea, input' ).is( ':focus' ) ) ) {
  19                         window.location = url;
  20                 }
  21         } );
  22 } )( jQuery );