resources/lib/jquery.ui/jquery.ui.effect-bounce.js

   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);