resources/jquery/jquery.tabIndex.js

   1 /**
   2  * jQuery tabIndex
   3  */
   4 ( function( $ ) {
   5 /**
   6  * Finds the lowerst tabindex in use within a selection
   7  *
   8  * @return number Lowest tabindex on the page
   9  */
  10 $.fn.firstTabIndex = function() {
  11         var minTabIndex = 0;
  12         $(this).find( '[tabindex]' ).each( function() {
  13                 var tabIndex = parseInt( $(this).attr( 'tabindex' ), 10 );
  14                 if ( tabIndex > minTabIndex ) {
  15                         minTabIndex = tabIndex;
  16                 }
  17         } );
  18         return minTabIndex;
  19 };
  20
  21 /**
  22  * Finds the highest tabindex in use within a selection
  23  *
  24  * @return number Highest tabindex on the page
  25  */
  26 $.fn.lastTabIndex = function() {
  27         var maxTabIndex = 0;
  28         $(this).find( '[tabindex]' ).each( function() {
  29                 var tabIndex = parseInt( $(this).attr( 'tabindex' ), 10 );
  30                 if ( tabIndex > maxTabIndex ) {
  31                         maxTabIndex = tabIndex;
  32                 }
  33         } );
  34         return maxTabIndex;
  35 };
  36 } )( jQuery );