resources/src/jquery/jquery.badge.js

   1 /*!
   2  * jQuery Badge plugin
   3  *
   4  * @license MIT
   5  *
   6  * @author Ryan Kaldari <rkaldari@wikimedia.org>, 2012
   7  * @author Andrew Garrett <agarrett@wikimedia.org>, 2012
   8  * @author Marius Hoch <hoo@online.de>, 2012
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this software and associated documentation files (the "Software"), to deal
  12  * in the Software without restriction, including without limitation the rights
  13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14  * copies of the Software, and to permit persons to whom the Software is
  15  * furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  *
  20  * This program is distributed WITHOUT ANY WARRANTY.
  21  */
  22
  23 /**
  24  * @class jQuery.plugin.badge
  25  */
  26 ( function ( $, mw ) {
  27         /**
  28          * Put a badge on an item on the page. The badge container will be appended to the selected element(s).
  29          *
  30          *     $element.badge( text );
  31          *     $element.badge( 5 );
  32          *     $element.badge( '100+' );
  33          *     $element.badge( text, inline );
  34          *     $element.badge( 'New', true );
  35          *
  36          * @param {number|string} text The value to display in the badge. If the value is falsey (0,
  37          *  null, false, '', etc.), any existing badge will be removed.
  38          * @param {boolean} [inline=true] True if the badge should be displayed inline, false
  39          *  if the badge should overlay the parent element.
  40          * @param {boolean} [displayZero=false] True if the number zero should be displayed,
  41          *  false if the number zero should result in the badge being hidden
  42          * @return {jQuery}
  43          * @chainable
  44          */
  45         $.fn.badge = function ( text, inline, displayZero ) {
  46                 var $badge = this.find( '.mw-badge' ),
  47                         badgeStyleClass = 'mw-badge-' + ( inline ? 'inline' : 'overlay' ),
  48                         isImportant = true,
  49                         displayBadge = true;
  50
  51                 // If we're displaying zero, ensure style to be non-important
  52                 if ( mw.language.convertNumber( text, true ) === 0 ) {
  53                         isImportant = false;
  54                         if ( !displayZero ) {
  55                                 displayBadge = false;
  56                         }
  57                 // If text is falsey (besides 0), hide the badge
  58                 } else if ( !text ) {
  59                         displayBadge = false;
  60                 }
  61
  62                 if ( displayBadge ) {
  63                         // If a badge already exists, reuse it
  64                         if ( $badge.length ) {
  65                                 $badge
  66                                         .toggleClass( 'mw-badge-important', isImportant )
  67                                         .find( '.mw-badge-content' ).text( text );
  68                         } else {
  69                                 // Otherwise, create a new badge with the specified text and style
  70                                 $badge = $( '<div class="mw-badge"></div>' )
  71                                         .addClass( badgeStyleClass )
  72                                         .toggleClass( 'mw-badge-important', isImportant )
  73                                         .append(
  74                                                 $( '<span class="mw-badge-content"></span>' ).text( text )
  75                                         )
  76                                         .appendTo( this );
  77                         }
  78                 } else {
  79                         $badge.remove();
  80                 }
  81                 return this;
  82         };
  83
  84         /**
  85          * @class jQuery
  86          * @mixins jQuery.plugin.badge
  87          */
  88 }( jQuery, mediaWiki ) );