1 /*!

     2  * jQuery UI Effects Pulsate 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/pulsate-effect/

    10  *

    11  * Depends:

    12  *	jquery.ui.effect.js

    13  */

    14 (function( $, undefined ) {

    15 

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

    17 	var elem = $( this ),

    18 		mode = $.effects.setMode( elem, o.mode || "show" ),

    19 		show = mode === "show",

    20 		hide = mode === "hide",

    21 		showhide = ( show || mode === "hide" ),

    22 

    23 		// showing or hiding leaves of the "last" animation

    24 		anims = ( ( o.times || 5 ) * 2 ) + ( showhide ? 1 : 0 ),

    25 		duration = o.duration / anims,

    26 		animateTo = 0,

    27 		queue = elem.queue(),

    28 		queuelen = queue.length,

    29 		i;

    30 

    31 	if ( show || !elem.is(":visible")) {

    32 		elem.css( "opacity", 0 ).show();

    33 		animateTo = 1;

    34 	}

    35 

    36 	// anims - 1 opacity "toggles"

    37 	for ( i = 1; i < anims; i++ ) {

    38 		elem.animate({

    39 			opacity: animateTo

    40 		}, duration, o.easing );

    41 		animateTo = 1 - animateTo;

    42 	}

    43 

    44 	elem.animate({

    45 		opacity: animateTo

    46 	}, duration, o.easing);

    47 

    48 	elem.queue(function() {

    49 		if ( hide ) {

    50 			elem.hide();

    51 		}

    52 		done();

    53 	});

    54 

    55 	// We just queued up "anims" animations, we need to put them next in the queue

    56 	if ( queuelen > 1 ) {

    57 		queue.splice.apply( queue,

    58 			[ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );

    59 	}

    60 	elem.dequeue();

    61 };

    62 

    63 })(jQuery);