resources/mediawiki/mediawiki.htmlform.js

   1 /**
   2  * Utility functions for jazzing up HTMLForm elements
   3  */
   4 ( function( $ ) {
   5
   6 /**
   7  * jQuery plugin to fade or snap to visible state.
   8  *
   9  * @param boolean instantToggle (optional)
  10  * @return jQuery
  11  */
  12 $.fn.goIn = function( instantToggle ) {
  13         if ( instantToggle === true ) {
  14                 return $(this).show();
  15         }
  16         return $(this).stop( true, true ).fadeIn();
  17 };
  18
  19 /**
  20  * jQuery plugin to fade or snap to hiding state.
  21  *
  22  * @param boolean instantToggle (optional)
  23  * @return jQuery
  24  */
  25 $.fn.goOut = function( instantToggle ) {
  26         if ( instantToggle === true ) {
  27                 return $(this).hide();
  28         }
  29         return $(this).stop( true, true ).fadeOut();
  30 };
  31
  32 /**
  33  * Bind a function to the jQuery object via live(), and also immediately trigger
  34  * the function on the objects with an 'instant' paramter set to true
  35  * @param callback function taking one paramter, which is Bool true when the event
  36  *     is called immediately, and the EventArgs object when triggered from an event
  37  */
  38 $.fn.liveAndTestAtStart = function( callback ){
  39         $(this)
  40                 .live( 'change', callback )
  41                 .each( function( index, element ){
  42                         callback.call( this, true );
  43                 } );
  44 };
  45
  46 // Document ready:
  47 $( function() {
  48
  49         // Animate the SelectOrOther fields, to only show the text field when
  50         // 'other' is selected.
  51         $( '.mw-htmlform-select-or-other' ).liveAndTestAtStart( function( instant ) {
  52                 var $other = $( '#' + $(this).attr( 'id' ) + '-other' );
  53                 $other = $other.add( $other.siblings( 'br' ) );
  54                 if ( $(this).val() === 'other' ) {
  55                         $other.goIn( instant );
  56                 } else {
  57                         $other.goOut( instant );
  58                 }
  59         });
  60
  61 });
  62
  63
  64 })( jQuery );