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   1  /*!
   2   * jQuery UI Effects Transfer 1.9.2
   3   * http://jqueryui.com
   4   *
   5   * Copyright 2012 jQuery Foundation and other contributors
   6   * Released under the MIT license.
   7   * http://jquery.org/license
   8   *
   9   * http://api.jqueryui.com/transfer-effect/
  10   *
  11   * Depends:
  12   *    jquery.ui.effect.js
  13   */
  14  (function( $, undefined ) {
  15  
  16  $.effects.effect.transfer = function( o, done ) {
  17      var elem = $( this ),
  18          target = $( o.to ),
  19          targetFixed = target.css( "position" ) === "fixed",
  20          body = $("body"),
  21          fixTop = targetFixed ? body.scrollTop() : 0,
  22          fixLeft = targetFixed ? body.scrollLeft() : 0,
  23          endPosition = target.offset(),
  24          animation = {
  25              top: endPosition.top - fixTop ,
  26              left: endPosition.left - fixLeft ,
  27              height: target.innerHeight(),
  28              width: target.innerWidth()
  29          },
  30          startPosition = elem.offset(),
  31          transfer = $( '<div class="ui-effects-transfer"></div>' )
  32              .appendTo( document.body )
  33              .addClass( o.className )
  34              .css({
  35                  top: startPosition.top - fixTop ,
  36                  left: startPosition.left - fixLeft ,
  37                  height: elem.innerHeight(),
  38                  width: elem.innerWidth(),
  39                  position: targetFixed ? "fixed" : "absolute"
  40              })
  41              .animate( animation, o.duration, o.easing, function() {
  42                  transfer.remove();
  43                  done();
  44              });
  45  };
  46  
  47  })(jQuery);