/*!

 * jQuery UI Effects Blind 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/blind-effect/

 *

 * Depends:

 *	jquery.ui.effect.js

 */

(function( $, undefined ) {

var rvertical = /up|down|vertical/,

	rpositivemotion = /up|left|vertical|horizontal/;

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

	// Create element

	var el = $( this ),

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

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

		direction = o.direction || "up",

		vertical = rvertical.test( direction ),

		ref = vertical ? "height" : "width",

		ref2 = vertical ? "top" : "left",

		motion = rpositivemotion.test( direction ),

		animation = {},

		show = mode === "show",

		wrapper, distance, margin;

	// if already wrapped, the wrapper's properties are my property. #6245

	if ( el.parent().is( ".ui-effects-wrapper" ) ) {

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

	} else {

		$.effects.save( el, props );

	}

	el.show();

	wrapper = $.effects.createWrapper( el ).css({

		overflow: "hidden"

	});

	distance = wrapper[ ref ]();

	margin = parseFloat( wrapper.css( ref2 ) ) || 0;

	animation[ ref ] = show ? distance : 0;

	if ( !motion ) {

		el

			.css( vertical ? "bottom" : "right", 0 )

			.css( vertical ? "top" : "left", "auto" )

			.css({ position: "absolute" });

		animation[ ref2 ] = show ? margin : distance + margin;

	}

	// start at 0 if we are showing

	if ( show ) {

		wrapper.css( ref, 0 );

		if ( ! motion ) {

			wrapper.css( ref2, margin + distance );

		}

	}

	// Animate

	wrapper.animate( animation, {

		duration: o.duration,

		easing: o.easing,

		queue: false,

		complete: function() {

			if ( mode === "hide" ) {

				el.hide();

			}

			$.effects.restore( el, props );

			$.effects.removeWrapper( el );

			done();

		}

	});

};

})(jQuery);