2 lines
5.3 KiB
JavaScript
2 lines
5.3 KiB
JavaScript
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/*! smooth-scroll v12.1.3 | (c) 2017 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
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window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),a=Math.max(0,16-(o-e)),i=window.setTimeout((function(){t(o+a)}),a);return e=o+a,i}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(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(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,before:function(){},after:function(){}},o=function(){for(var e={},t=0,n=arguments.length;t<n;t++){var o=arguments[t];!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(o)}return e},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},r=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},u=function(){return Math.max(document.documentElement.clientHeight,e.innerHeight||0)},c=function(){return parseInt(e.getComputedStyle(document.documentElement).height,10)},s=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0),Math.min(o,c()-u())},l=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)};return function(a,u){var m,h,g,p,w,v,y,A={};A.cancelScroll=function(){cancelAnimationFrame(y)},A.animateScroll=function(t,a,i){var u=o(m||n,i||{}),f="[object Number]"===Object.prototype.toString.call(t),h=f||!t.tagName?null:t;if(f||h){var g=e.pageYOffset;u.header&&!p&&(p=document.querySelector(u.header)),w||(w=l(p));var v,y,b,E=f?t:s(h,w,parseInt("function"==typeof u.offset?u.offset():u.offset,10)),S=E-g,I=c(),q=0,C=function(n,o){var i=e.pageYOffset;if(n==o||i==o||(g<o&&e.innerHeight+i)>=I)return A.cancelScroll(),d(t,o,f),u.after(t,a),v=null,!0},F=function(t){v||(v=t),q+=t-v,y=q/parseInt(u.speed,10),y=y>1?1:y,b=g+S*r(u,y),e.scrollTo(0,Math.floor(b)),C(b,E)||(e.requestAnimationFrame(F),v=t)};0===e.pageYOffset&&e.scrollTo(0,0),u.before(t,a),A.cancelScroll(),e.requestAnimationFrame(F)}};var b=function(t){try{i(decodeURIComponent(e.location.hash))}catch(t){i(e.location.hash)}h&&(h.id=
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