/*!

 * jQuery UI Effects Bounce 1.10.3

 * 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);