MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / resources / src / jquery / jquery.checkboxShiftClick.js

diff --git a/resources/src/jquery/jquery.checkboxShiftClick.js b/resources/src/jquery/jquery.checkboxShiftClick.js
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+/**
+ * @class jQuery.plugin.checkboxShiftClick
+ */
+( function ( $ ) {
+
+       /**
+        * Enable checkboxes to be checked or unchecked in a row by clicking one,
+        * holding shift and clicking another one.
+        *
+        * @return {jQuery}
+        * @chainable
+        */
+       $.fn.checkboxShiftClick = function () {
+               var prevCheckbox = null,
+                       $box = this;
+               // When our boxes are clicked..
+               $box.click( function ( e ) {
+                       // And one has been clicked before...
+                       if ( prevCheckbox !== null && e.shiftKey ) {
+                               // Check or uncheck this one and all in-between checkboxes,
+                               // except for disabled ones
+                               $box
+                                       .slice(
+                                               Math.min( $box.index( prevCheckbox ), $box.index( e.target ) ),
+                                               Math.max( $box.index( prevCheckbox ), $box.index( e.target ) ) + 1
+                                       )
+                                       .filter( function () {
+                                               return !this.disabled;
+                                       } )
+                                       .prop( 'checked', !!e.target.checked );
+                       }
+                       // Either way, update the prevCheckbox variable to the one clicked now
+                       prevCheckbox = e.target;
+               } );
+               return $box;
+       };
+
+       /**
+        * @class jQuery
+        * @mixins jQuery.plugin.checkboxShiftClick
+        */
+
+}( jQuery ) );