[Summary view] [Print] [Text view]

   1  /*!
   2   * jQuery UI Effects Bounce 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/bounce-effect/
  10   *
  11   * Depends:
  12   *    jquery.ui.effect.js
  13   */
  14  (function( $, undefined ) {
  15  
  16  $.effects.effect.bounce = function( o, done ) {
  17      var el = $( this ),
  18          props = [ "position", "top", "bottom", "left", "right", "height", "width" ],
  19  
  20          // defaults:
  21          mode = $.effects.setMode( el, o.mode || "effect" ),
  22          hide = mode === "hide",
  23          show = mode === "show",
  24          direction = o.direction || "up",
  25          distance = o.distance,
  26          times = o.times || 5,
  27  
  28          // number of internal animations
  29          anims = times * 2 + ( show || hide ? 1 : 0 ),
  30          speed = o.duration / anims,
  31          easing = o.easing,
  32  
  33          // utility:
  34          ref = ( direction === "up" || direction === "down" ) ? "top" : "left",
  35          motion = ( direction === "up" || direction === "left" ),
  36          i,
  37          upAnim,
  38          downAnim,
  39  
  40          // we will need to re-assemble the queue to stack our animations in place
  41          queue = el.queue(),
  42          queuelen = queue.length;
  43  
  44      // Avoid touching opacity to prevent clearType and PNG issues in IE
  45      if ( show || hide ) {
  46          props.push( "opacity" );
  47      }
  48  
  49      $.effects.save( el, props );
  50      el.show();
  51      $.effects.createWrapper( el ); // Create Wrapper
  52  
  53      // default distance for the BIGGEST bounce is the outer Distance / 3
  54      if ( !distance ) {
  55          distance = el[ ref === "top" ? "outerHeight" : "outerWidth" ]() / 3;
  56      }
  57  
  58      if ( show ) {
  59          downAnim = { opacity: 1 };
  60          downAnim[ ref ] = 0;
  61  
  62          // if we are showing, force opacity 0 and set the initial position
  63          // then do the "first" animation
  64          el.css( "opacity", 0 )
  65              .css( ref, motion ? -distance * 2 : distance * 2 )
  66              .animate( downAnim, speed, easing );
  67      }
  68  
  69      // start at the smallest distance if we are hiding
  70      if ( hide ) {
  71          distance = distance / Math.pow( 2, times - 1 );
  72      }
  73  
  74      downAnim = {};
  75      downAnim[ ref ] = 0;
  76      // Bounces up/down/left/right then back to 0 -- times * 2 animations happen here
  77      for ( i = 0; i < times; i++ ) {
  78          upAnim = {};
  79          upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
  80  
  81          el.animate( upAnim, speed, easing )
  82              .animate( downAnim, speed, easing );
  83  
  84          distance = hide ? distance * 2 : distance / 2;
  85      }
  86  
  87      // Last Bounce when Hiding
  88      if ( hide ) {
  89          upAnim = { opacity: 0 };
  90          upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
  91  
  92          el.animate( upAnim, speed, easing );
  93      }
  94  
  95      el.queue(function() {
  96          if ( hide ) {
  97              el.hide();
  98          }
  99          $.effects.restore( el, props );
 100          $.effects.removeWrapper( el );
 101          done();
 102      });
 103  
 104      // inject all the animations we just queued to be first in line (after "inprogress")
 105      if ( queuelen > 1) {
 106          queue.splice.apply( queue,
 107              [ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );
 108      }
 109      el.dequeue();
 110  
 111  };
 112  
 113  })(jQuery);