resources/src/jquery/jquery.checkboxShiftClick.js

   1 /**
   2  * @class jQuery.plugin.checkboxShiftClick
   3  */
   4 ( function ( $ ) {
   5
   6         /**
   7          * Enable checkboxes to be checked or unchecked in a row by clicking one,
   8          * holding shift and clicking another one.
   9          *
  10          * @return {jQuery}
  11          * @chainable
  12          */
  13         $.fn.checkboxShiftClick = function () {
  14                 var prevCheckbox = null,
  15                         $box = this;
  16                 // When our boxes are clicked..
  17                 $box.click( function ( e ) {
  18                         // And one has been clicked before...
  19                         if ( prevCheckbox !== null && e.shiftKey ) {
  20                                 // Check or uncheck this one and all in-between checkboxes,
  21                                 // except for disabled ones
  22                                 $box
  23                                         .slice(
  24                                                 Math.min( $box.index( prevCheckbox ), $box.index( e.target ) ),
  25                                                 Math.max( $box.index( prevCheckbox ), $box.index( e.target ) ) + 1
  26                                         )
  27                                         .filter( function () {
  28                                                 return !this.disabled;
  29                                         } )
  30                                         .prop( 'checked', !!e.target.checked );
  31                         }
  32                         // Either way, update the prevCheckbox variable to the one clicked now
  33                         prevCheckbox = e.target;
  34                 } );
  35                 return $box;
  36         };
  37
  38         /**
  39          * @class jQuery
  40          * @mixins jQuery.plugin.checkboxShiftClick
  41          */
  42
  43 }( jQuery ) );