1 /*!

     2  * jQuery UI Effects Drop 1.10.3

     3  * http://jqueryui.com

     4  *

     5  * Copyright 2013 jQuery Foundation and other contributors

     6  * Released under the MIT license.

     7  * http://jquery.org/license

     8  *

     9  * http://api.jqueryui.com/drop-effect/

    10  *

    11  * Depends:

    12  *	jquery.ui.effect.js

    13  */

    14 (function( $, undefined ) {

    15 

    16 $.effects.effect.drop = function( o, done ) {

    17 

    18 	var el = $( this ),

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

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

    21 		show = mode === "show",

    22 		direction = o.direction || "left",

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

    24 		motion = ( direction === "up" || direction === "left" ) ? "pos" : "neg",

    25 		animation = {

    26 			opacity: show ? 1 : 0

    27 		},

    28 		distance;

    29 

    30 	// Adjust

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

    32 	el.show();

    33 	$.effects.createWrapper( el );

    34 

    35 	distance = o.distance || el[ ref === "top" ? "outerHeight": "outerWidth" ]( true ) / 2;

    36 

    37 	if ( show ) {

    38 		el

    39 			.css( "opacity", 0 )

    40 			.css( ref, motion === "pos" ? -distance : distance );

    41 	}

    42 

    43 	// Animation

    44 	animation[ ref ] = ( show ?

    45 		( motion === "pos" ? "+=" : "-=" ) :

    46 		( motion === "pos" ? "-=" : "+=" ) ) +

    47 		distance;

    48 

    49 	// Animate

    50 	el.animate( animation, {

    51 		queue: false,

    52 		duration: o.duration,

    53 		easing: o.easing,

    54 		complete: function() {

    55 			if ( mode === "hide" ) {

    56 				el.hide();

    57 			}

    58 			$.effects.restore( el, props );

    59 			$.effects.removeWrapper( el );

    60 			done();

    61 		}

    62 	});

    63 };

    64 

    65 })(jQuery);