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EDIT :: effect-fold.js

/*! * jQuery UI Effects Fold 1.13.3 * https://jqueryui.com * * Copyright OpenJS Foundation and other contributors * Released under the MIT license. * https://jquery.org/license */ //>>label: Fold Effect //>>group: Effects //>>description: Folds an element first horizontally and then vertically. //>>docs: https://api.jqueryui.com/fold-effect/ //>>demos: https://jqueryui.com/effect/ ( function( factory ) { "use strict"; if ( typeof define === "function" && define.amd ) { // AMD. Register as an anonymous module. define( [ "jquery", "../version", "../effect" ], factory ); } else { // Browser globals factory( jQuery ); } } )( function( $ ) { "use strict"; return $.effects.define( "fold", "hide", function( options, done ) { // Create element var element = $( this ), mode = options.mode, show = mode === "show", hide = mode === "hide", size = options.size || 15, percent = /([0-9]+)%/.exec( size ), horizFirst = !!options.horizFirst, ref = horizFirst ? [ "right", "bottom" ] : [ "bottom", "right" ], duration = options.duration / 2, placeholder = $.effects.createPlaceholder( element ), start = element.cssClip(), animation1 = { clip: $.extend( {}, start ) }, animation2 = { clip: $.extend( {}, start ) }, distance = [ start[ ref[ 0 ] ], start[ ref[ 1 ] ] ], queuelen = element.queue().length; if ( percent ) { size = parseInt( percent[ 1 ], 10 ) / 100 * distance[ hide ? 0 : 1 ]; } animation1.clip[ ref[ 0 ] ] = size; animation2.clip[ ref[ 0 ] ] = size; animation2.clip[ ref[ 1 ] ] = 0; if ( show ) { element.cssClip( animation2.clip ); if ( placeholder ) { placeholder.css( $.effects.clipToBox( animation2 ) ); } animation2.clip = start; } // Animate element .queue( function( next ) { if ( placeholder ) { placeholder .animate( $.effects.clipToBox( animation1 ), duration, options.easing ) .animate( $.effects.clipToBox( animation2 ), duration, options.easing ); } next(); } ) .animate( animation1, duration, options.easing ) .animate( animation2, duration, options.easing ) .queue( done ); $.effects.unshift( element, queuelen, 4 ); } ); } );

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