2 lines
2.1 KiB
JavaScript
2 lines
2.1 KiB
JavaScript
/* appear.min.js 1.0.3 */
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appear=function(){"use strict";function e(){var e=window.scrollY||window.pageYOffset;null!=n&&(o.velocity=e-n,o.delta=o.velocity>=0?o.velocity:-1*o.velocity),n=e,i&&clearTimeout(i),i=setTimeout(function(){n=null},30)}function t(e,t){var n=e.getBoundingClientRect();return n.top+n.height>=0&&n.left+n.width>=0&&n.bottom-n.height<=(window.innerHeight||document.documentElement.clientHeight)+t&&n.right-n.width<=(window.innerWidth||document.documentElement.clientWidth)+t}var n=null,i=0,o={};return addEventListener("scroll",e,!1),function(e){return function(e){function n(e,t){return function(){var n=this,i=arguments;clearTimeout(l),l=setTimeout(function(){e.apply(n,i)},t)}}function i(){o.delta<y.delta.speed&&(s||(s=!0,d(),setTimeout(function(){s=!1},y.delta.timeout))),n(function(){d()},y.debounce)()}function r(){d(),addEventListener("scroll",i,!1),addEventListener("resize",i,!1)}function a(){v=[],l&&clearTimeout(l),u()}function u(){removeEventListener("scroll",i,!1),removeEventListener("resize",i,!1)}function d(){f||(v.forEach(function(e,n){e&&t(e,y.bounds)?h[n]&&(h[n]=!1,g++,y.appear&&y.appear(e),y.disappear||y.reappear||(v[n]=null)):(h[n]===!1&&(y.disappear&&y.disappear(e),w++,y.reappear||(v[n]=null)),h[n]=!0)}),y.reappear||y.appear&&(!y.appear||g!==p)||y.disappear&&(!y.disappear||w!==p)||(f=!0,u(),y.done&&y.done()))}function c(){if(!m){m=!0,y.init&&y.init();var e;if(e="function"==typeof y.elements?y.elements():y.elements){p=e.length;for(var t=0;p>t;t+=1)v.push(e[t]),h.push(!0);r()}}}var p,l,s,f,m=!1,v=[],h=[],g=0,w=0,y={};return function(e){e=e||{},y={init:e.init,elements:e.elements,appear:e.appear,disappear:e.disappear,done:e.done,reappear:e.reappear,bounds:e.bounds||0,debounce:e.debounce||50,delta:{speed:e.deltaSpeed||50,timeout:e.deltaTimeout||500}},addEventListener("DOMContentLoaded",c,!1);var t=!1;Function("/*@cc_on return document.documentMode===10@*/")()&&(t=!0);var n="complete"===document.readyState||"loaded"===document.readyState;return t?n&&c():(n||"interactive"===document.readyState)&&c(),{trigger:function(){d()},pause:function(){u()},resume:function(){r()},destroy:function(){a()}}}}()(e)}}(); |