{"version":3,"sources":["webpack://BirnPartners/./Src/Scripts/components/top-navigation.js"],"names":["constructor","elm","this","didScroll","lastScrollTop","delta","header","offset","offsetHeight","window","onscroll","setInterval","hasScrolled","isMobileNavigation","querySelector","addEventListener","e","preventDefault","document","body","classList","toggle","contains","st","undefined","pageYOffset","documentElement","parentNode","scrollTop","Math","abs"],"mappings":"gMAAe,MACXA,YAAYC,GACRC,KAAKC,WAAY,EACjBD,KAAKE,cAAgB,EACrBF,KAAKG,MAAQ,EACbH,KAAKI,OAASL,EACdC,KAAKK,OAASL,KAAKI,OAAOE,aAE1BC,OAAOC,SAAW,KACdR,KAAKC,WAAY,GAGrBQ,aAAY,KACJT,KAAKC,YACLD,KAAKU,cACLV,KAAKC,WAAY,KAEtB,KAEH,MAAMU,EAAqBX,KAAKI,OAAOQ,cAAc,wBAC1B,OAAvBD,GACAA,EAAmBE,iBAAiB,SAASC,IACzCA,EAAEC,iBACFC,SAASC,KAAKC,UAAUC,OAAO,oBAAqBH,SAASC,KAAKC,UAAUE,SAAS,wBAI7FpB,KAAKU,cAGTA,cACI,MAAMW,OAA6BC,IAAvBf,OAAOgB,YAA6BhB,OAAOgB,aAAeP,SAASQ,iBAAmBR,SAASC,KAAKQ,YAAcT,SAASC,MAAMS,UAEzIC,KAAKC,IAAI5B,KAAKE,cAAgBmB,IAAOrB,KAAKG,QAE9CH,KAAKI,OAAOc,UAAUC,OAAO,WAAYE,EAAKrB,KAAKK,QACnDL,KAAKI,OAAOc,UAAUC,OAAO,WAAaE,EAAKrB,KAAKE,eAAiBmB,GACrErB,KAAKI,OAAOc,UAAUC,OAAO,SAAWE,EAAKrB,KAAKE,eAAiBmB,GAEnErB,KAAKE,cAAgBmB","file":"745.b6c4b2055d5bbbf3bf49.js","sourcesContent":["export default class TopNavigation {\n    constructor(elm) {\n        this.didScroll = false;\n        this.lastScrollTop = 0;\n        this.delta = 5;\n        this.header = elm;\n        this.offset = this.header.offsetHeight;\n\n        window.onscroll = () => {\n            this.didScroll = true;\n        };\n\n        setInterval(() => {\n            if (this.didScroll) {\n                this.hasScrolled();\n                this.didScroll = false;\n            }\n        }, 250);\n\n        const isMobileNavigation = this.header.querySelector('.header__burger-menu')\n        if (isMobileNavigation !== null) {\n            isMobileNavigation.addEventListener('click', e => {\n                e.preventDefault();\n                document.body.classList.toggle('mobile-menu-open', !document.body.classList.contains('mobile-menu-open'));\n            });\n        }\n        \n        this.hasScrolled()\n    }\n\n    hasScrolled() {\n        const st = (window.pageYOffset !== undefined) ? window.pageYOffset : (document.documentElement || document.body.parentNode || document.body).scrollTop;\n\n        if (Math.abs(this.lastScrollTop - st) <= this.delta) return;\n\n        this.header.classList.toggle('scrolled', st > this.offset);\n        this.header.classList.toggle('nav-down', (st > this.lastScrollTop && st));\n        this.header.classList.toggle('nav-up', (st > this.lastScrollTop && st));\n\n        this.lastScrollTop = st;\n    }\n}\n"],"sourceRoot":""}