mirror of
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2 lines
5.4 KiB
JavaScript
2 lines
5.4 KiB
JavaScript
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/*! smooth-scroll v16.1.3 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
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!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var w={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},L=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},H=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},q=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},x=function(e,t,n){0===e&&document.body.focus(),n||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),C.scrollTo(0,t))},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var O,a,I,M,A={};A.cancelScroll=function(e){cancelAnimationFrame(M),M=null,e||Q("scrollCancel",O)},A.animateScroll=function(a,r,e){A.cancelScroll();var i=L(O||w,e||{}),s="[object Number]"===Object.prototype.toString.call(a),t=s||!a.tagName?null:a;if(s||t){var c=C.pageYOffset;i.header&&!I&&(I=document.querySelector(i.header));var n,o,u,l,d,f,m,h,p=q(I),g=s?a:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,H()-C.innerHeight)),a})(t,p,parseInt("function"==typeof i.offset?i.offset(a,r):i.offset,10),i.clip),y=g-c,v=H(),S=0,E=(n=y,u=(o=i).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&u>o.durationMax?o.durationMax:o.durationMin&&u<o.durationMin?o.durationMin:parseInt(u,10)),b=function(e){var t,n,o;l||(l=e),S+=e-l,f=c+y*(n=d=1<(d=0===E?0:S/E)?1:d,"easeInQuad"===(t=i).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),(function(e,t){var n=C.pageYOffset;if(e==t||n==t||(c<t&&C.innerHeight+n)>=v)return A.cancelScroll(!0),x(a,t,s),Q("scrollStop",i,a,r),!(M=l=null)})(f,g)||(M=C.requestAnimationFrame(b),l=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=a,h=i,s||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches?x(a,Math.floor(g),!1):(Q("scrollStart",i,a,r),A.cancelScroll(!0),C.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(O.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decode
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