/*!
* jQuery UI Effects Fold 1.10.1
* http://jqueryui.com
*
* Copyright 2013 jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*
* http://api.jqueryui.com/fold-effect/
*
* Depends:
* jquery.ui.effect.js
*/
(function( $, undefined ) {

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

// Create element
var el = $( this ),
props = [ "position", "top", "bottom", "left", "right", "height", "width" ],
mode = $.effects.setMode( el, o.mode || "hide" ),
show = mode === "show",
hide = mode === "hide",
size = o.size || 15,
percent = /([0-9]+)%/.exec( size ),
horizFirst = !!o.horizFirst,
widthFirst = show !== horizFirst,
ref = widthFirst ? [ "width", "height" ] : [ "height", "width" ],
duration = o.duration / 2,
wrapper, distance,
animation1 = {},
animation2 = {};

$.effects.save( el, props );
el.show();

// Create Wrapper
wrapper = $.effects.createWrapper( el ).css({
overflow: "hidden"
});
distance = widthFirst ?
[ wrapper.width(), wrapper.height() ] :
[ wrapper.height(), wrapper.width() ];

if ( percent ) {
size = parseInt( percent[ 1 ], 10 ) / 100 * distance[ hide ? 0 : 1 ];
}
if ( show ) {
wrapper.css( horizFirst ? {
height: 0,
width: size
} : {
height: size,
width: 0
});
}

// Animation
animation1[ ref[ 0 ] ] = show ? distance[ 0 ] : size;
animation2[ ref[ 1 ] ] = show ? distance[ 1 ] : 0;

// Animate
wrapper
.animate( animation1, duration, o.easing )
.animate( animation2, duration, o.easing, function() {
if ( hide ) {
el.hide();
}
$.effects.restore( el, props );
$.effects.removeWrapper( el );
done();
});

};

})(jQuery);