View file File name : effect-drop.js Content :/*! * jQuery UI Effects Drop 1.13.3 * https://jqueryui.com * * Copyright OpenJS Foundation and other contributors * Released under the MIT license. * https://jquery.org/license */ //>>label: Drop Effect //>>group: Effects //>>description: Moves an element in one direction and hides it at the same time. //>>docs: https://api.jqueryui.com/drop-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( "drop", "hide", function( options, done ) { var distance, element = $( this ), mode = options.mode, show = mode === "show", direction = options.direction || "left", ref = ( direction === "up" || direction === "down" ) ? "top" : "left", motion = ( direction === "up" || direction === "left" ) ? "-=" : "+=", oppositeMotion = ( motion === "+=" ) ? "-=" : "+=", animation = { opacity: 0 }; $.effects.createPlaceholder( element ); distance = options.distance || element[ ref === "top" ? "outerHeight" : "outerWidth" ]( true ) / 2; animation[ ref ] = motion + distance; if ( show ) { element.css( animation ); animation[ ref ] = oppositeMotion + distance; animation.opacity = 1; } // Animate element.animate( animation, { queue: false, duration: options.duration, easing: options.easing, complete: done } ); } ); } );