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/*!

 * jQuery UI Effects Bounce 1.10.2

 * http://jqueryui.com

 *

 * Copyright 2013 jQuery Foundation and other contributors

 * Released under the MIT license.

 * http://jquery.org/license

 *

 * http://api.jqueryui.com/bounce-effect/

 *

 * Depends:

 *        jquery.ui.effect.js

 */

(function( $, undefined ) {

$.effects.effect.bounce = function( o, done ) {

        var el = $( this ),

                props = [ "position", "top", "bottom", "left", "right", "height", "width" ],

                // defaults:

                mode = $.effects.setMode( el, o.mode || "effect" ),

                hide = mode === "hide",

                show = mode === "show",

                direction = o.direction || "up",

                distance = o.distance,

                times = o.times || 5,

                // number of internal animations

                anims = times * 2 + ( show || hide ? 1 : 0 ),

                speed = o.duration / anims,

                easing = o.easing,

                // utility:

                ref = ( direction === "up" || direction === "down" ) ? "top" : "left",

                motion = ( direction === "up" || direction === "left" ),

                i,

                upAnim,

                downAnim,

                // we will need to re-assemble the queue to stack our animations in place

                queue = el.queue(),

                queuelen = queue.length;

        // Avoid touching opacity to prevent clearType and PNG issues in IE

        if ( show || hide ) {

                props.push( "opacity" );

        }

        $.effects.save( el, props );

        el.show();

        $.effects.createWrapper( el ); // Create Wrapper

        // default distance for the BIGGEST bounce is the outer Distance / 3

        if ( !distance ) {

                distance = el[ ref === "top" ? "outerHeight" : "outerWidth" ]() / 3;

        }

        if ( show ) {

                downAnim = { opacity: 1 };

                downAnim[ ref ] = 0;

                // if we are showing, force opacity 0 and set the initial position

                // then do the "first" animation

                el.css( "opacity", 0 )

                        .css( ref, motion ? -distance * 2 : distance * 2 )

                        .animate( downAnim, speed, easing );

        }

        // start at the smallest distance if we are hiding

        if ( hide ) {

                distance = distance / Math.pow( 2, times - 1 );

        }

        downAnim = {};

        downAnim[ ref ] = 0;

        // Bounces up/down/left/right then back to 0 -- times * 2 animations happen here

        for ( i = 0; i < times; i++ ) {

                upAnim = {};

                upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;

                el.animate( upAnim, speed, easing )

                        .animate( downAnim, speed, easing );

                distance = hide ? distance * 2 : distance / 2;

        }

        // Last Bounce when Hiding

        if ( hide ) {

                upAnim = { opacity: 0 };

                upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;

                el.animate( upAnim, speed, easing );

        }

        el.queue(function() {

                if ( hide ) {

                        el.hide();

                }

                $.effects.restore( el, props );

                $.effects.removeWrapper( el );

                done();

        });

        // inject all the animations we just queued to be first in line (after "inprogress")

        if ( queuelen > 1) {

                queue.splice.apply( queue,

                        [ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );

        }

        el.dequeue();

};

})(jQuery);