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   1  /*

   2   * jQuery UI Effects Pulsate 1.7.2

   3   *

   4   * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)

   5   * Dual licensed under the MIT (MIT-LICENSE.txt)

   6   * and GPL (GPL-LICENSE.txt) licenses.

   7   *

   8   * http://docs.jquery.com/UI/Effects/Pulsate

   9   *

  10   * Depends:

  11   *    effects.core.js

  12   */
  13  (function($) {
  14  
  15  $.effects.pulsate = function(o) {
  16  
  17      return this.queue(function() {
  18  
  19          // Create element

  20          var el = $(this);
  21  
  22          // Set options

  23          var mode = $.effects.setMode(el, o.options.mode || 'show'); // Set Mode

  24          var times = o.options.times || 5; // Default # of times

  25          var duration = o.duration ? o.duration / 2 : $.fx.speeds._default / 2;
  26  
  27          // Adjust

  28          if (mode == 'hide') times--;
  29          if (el.is(':hidden')) { // Show fadeIn
  30              el.css('opacity', 0);
  31              el.show(); // Show

  32              el.animate({opacity: 1}, duration, o.options.easing);
  33              times = times-2;
  34          }
  35  
  36          // Animate

  37          for (var i = 0; i < times; i++) { // Pulsate
  38              el.animate({opacity: 0}, duration, o.options.easing).animate({opacity: 1}, duration, o.options.easing);
  39          };
  40          if (mode == 'hide') { // Last Pulse
  41              el.animate({opacity: 0}, duration, o.options.easing, function(){
  42                  el.hide(); // Hide

  43                  if(o.callback) o.callback.apply(this, arguments); // Callback

  44              });
  45          } else {
  46              el.animate({opacity: 0}, duration, o.options.easing).animate({opacity: 1}, duration, o.options.easing, function(){
  47                  if(o.callback) o.callback.apply(this, arguments); // Callback

  48              });
  49          };
  50          el.queue('fx', function() { el.dequeue(); });
  51          el.dequeue();
  52      });
  53  
  54  };
  55  
  56  })(jQuery);