1
|
{"version":3,"sources":["../src/scrollspy.js"],"names":["ScrollSpy","$","NAME","VERSION","DATA_KEY","EVENT_KEY","DATA_API_KEY","JQUERY_NO_CONFLICT","fn","Default","offset","method","target","DefaultType","Event","ACTIVATE","SCROLL","LOAD_DATA_API","ClassName","DROPDOWN_ITEM","DROPDOWN_MENU","ACTIVE","Selector","DATA_SPY","NAV_LIST_GROUP","NAV_LINKS","NAV_ITEMS","LIST_ITEMS","DROPDOWN","DROPDOWN_ITEMS","DROPDOWN_TOGGLE","OffsetMethod","OFFSET","POSITION","element","config","_element","_scrollElement","tagName","window","_config","_getConfig","_selector","_offsets","_targets","_activeTarget","_scrollHeight","on","event","_process","refresh","autoMethod","offsetMethod","offsetBase","_getScrollTop","_getScrollHeight","targets","makeArray","map","targetSelector","Util","getSelectorFromElement","targetBCR","getBoundingClientRect","width","height","top","filter","item","sort","a","b","forEach","push","dispose","removeData","off","id","attr","getUID","typeCheckConfig","pageYOffset","scrollTop","scrollHeight","Math","max","document","body","documentElement","_getOffsetHeight","innerHeight","maxScroll","length","_activate","_clear","i","isActiveTarget","queries","split","selector","$link","join","hasClass","closest","find","addClass","parents","prev","children","trigger","relatedTarget","removeClass","_jQueryInterface","each","data","Error","scrollSpys","$spy","call","Constructor","noConflict"],"mappings":";;;;;;AAIA;;;;;;AAOA,IAAMA,YAAa,UAACC,CAAD,EAAO;AAGxB;;;;;AAMA,MAAMC,OAAqB,WAA3B;AACA,MAAMC,UAAqB,cAA3B;AACA,MAAMC,WAAqB,cAA3B;AACA,MAAMC,kBAAyBD,QAA/B;AACA,MAAME,eAAqB,WAA3B;AACA,MAAMC,qBAAqBN,EAAEO,EAAF,CAAKN,IAAL,CAA3B;AAEA,MAAMO,UAAU;AACdC,YAAS,EADK;AAEdC,YAAS,MAFK;AAGdC,YAAS;AAHK,GAAhB;AAMA,MAAMC,cAAc;AAClBH,YAAS,QADS;AAElBC,YAAS,QAFS;AAGlBC,YAAS;AAHS,GAApB;AAMA,MAAME,QAAQ;AACZC,2BAA2BV,SADf;AAEZW,uBAAyBX,SAFb;AAGZY,4BAAuBZ,SAAvB,GAAmCC;AAHvB,GAAd;AAMA,MAAMY,YAAY;AAChBC,mBAAgB,eADA;AAEhBC,mBAAgB,eAFA;AAGhBC,YAAgB;AAHA,GAAlB;AAMA,MAAMC,WAAW;AACfC,cAAkB,qBADH;AAEfF,YAAkB,SAFH;AAGfG,oBAAkB,mBAHH;AAIfC,eAAkB,WAJH;AAKfC,eAAkB,WALH;AAMfC,gBAAkB,kBANH;AAOfC,cAAkB,WAPH;AAQfC,oBAAkB,gBARH;AASfC,qBAAkB;AATH,GAAjB;AAYA,MAAMC,eAAe;AACnBC,YAAW,QADQ;AAEnBC,cAAW;AAIb;;;;;;AANqB,GAArB;;AApDwB,MAgElBjC,SAhEkB;AAAA;AAAA;AAkEtB,uBAAYkC,OAAZ,EAAqBC,MAArB,EAA6B;AAAA;;AAC3B,WAAKC,QAAL,GAAsBF,OAAtB;AACA,WAAKG,cAAL,GAAsBH,QAAQI,OAAR,KAAoB,MAApB,GAA6BC,MAA7B,GAAsCL,OAA5D;AACA,WAAKM,OAAL,GAAsB,KAAKC,UAAL,CAAgBN,MAAhB,CAAtB;AACA,WAAKO,SAAL,GAAyB,KAAKF,OAAL,CAAa5B,MAAhB,SAA0BU,SAASG,SAAnC,UACG,KAAKe,OAAL,CAAa5B,MADhB,SAC0BU,SAASK,UADnC,WAEG,KAAKa,OAAL,CAAa5B,MAFhB,SAE0BU,SAASO,cAFnC,CAAtB;AAGA,WAAKc,QAAL,GAAsB,EAAtB;AACA,WAAKC,QAAL,GAAsB,EAAtB;AACA,WAAKC,aAAL,GAAsB,IAAtB;AACA,WAAKC,aAAL,GAAsB,CAAtB;AAEA7C,QAAE,KAAKoC,cAAP,EAAuBU,EAAvB,CAA0BjC,MAAME,MAAhC,EAAwC,UAACgC,KAAD;AAAA,eAAW,MAAKC,QAAL,CAAcD,KAAd,CAAX;AAAA,OAAxC;AAEA,WAAKE,OAAL;;AACA,WAAKD,QAAL;AACD,KAlFqB,CAqFtB;;;AArFsB;;AAgGtB;AAhGsB,WAkGtBC,OAlGsB,sBAkGZ;AAAA;;AACR,UAAMC,aAAa,KAAKd,cAAL,KAAwB,KAAKA,cAAL,CAAoBE,MAA5C,GACjBR,aAAaE,QADI,GACOF,aAAaC,MADvC;AAGA,UAAMoB,eAAe,KAAKZ,OAAL,CAAa7B,MAAb,KAAwB,MAAxB,GACnBwC,UADmB,GACN,KAAKX,OAAL,CAAa7B,MAD5B;AAGA,UAAM0C,aAAaD,iBAAiBrB,aAAaE,QAA9B,GACjB,KAAKqB,aAAL,EADiB,GACM,CADzB;AAGA,WAAKX,QAAL,GAAgB,EAAhB;AACA,WAAKC,QAAL,GAAgB,EAAhB;AAEA,WAAKE,aAAL,GAAqB,KAAKS,gBAAL,EAArB;AAEA,UAAMC,UAAUvD,EAAEwD,SAAF,CAAYxD,EAAE,KAAKyC,SAAP,CAAZ,CAAhB;AAEAc,cACGE,GADH,CACO,UAACxB,OAAD,EAAa;AAChB,YAAItB,MAAJ;AACA,YAAM+C,iBAAiBC,KAAKC,sBAAL,CAA4B3B,OAA5B,CAAvB;;AAEA,YAAIyB,cAAJ,EAAoB;AAClB/C,mBAASX,EAAE0D,cAAF,EAAkB,CAAlB,CAAT;AACD;;AAED,YAAI/C,MAAJ,EAAY;AACV,cAAMkD,YAAYlD,OAAOmD,qBAAP,EAAlB;;AACA,cAAID,UAAUE,KAAV,IAAmBF,UAAUG,MAAjC,EAAyC;AACvC;AACA,mBAAO,CACLhE,EAAEW,MAAF,EAAUwC,YAAV,IAA0Bc,GAA1B,GAAgCb,UAD3B,EAELM,cAFK,CAAP;AAID;AACF;;AACD,eAAO,IAAP;AACD,OApBH,EAqBGQ,MArBH,CAqBU,UAACC,IAAD;AAAA,eAAWA,IAAX;AAAA,OArBV,EAsBGC,IAtBH,CAsBQ,UAACC,CAAD,EAAIC,CAAJ;AAAA,eAAaD,EAAE,CAAF,IAAOC,EAAE,CAAF,CAApB;AAAA,OAtBR,EAuBGC,OAvBH,CAuBW,UAACJ,IAAD,EAAU;AACjB,eAAKzB,QAAL,CAAc8B,IAAd,CAAmBL,KAAK,CAAL,CAAnB;;AACA,eAAKxB,QAAL,CAAc6B,IAAd,CAAmBL,KAAK,CAAL,CAAnB;AACD,OA1BH;AA2BD,KA9IqB;;AAAA,WAgJtBM,OAhJsB,sBAgJZ;AACRzE,QAAE0E,UAAF,CAAa,KAAKvC,QAAlB,EAA4BhC,QAA5B;AACAH,QAAE,KAAKoC,cAAP,EAAuBuC,GAAvB,CAA2BvE,SAA3B;AAEA,WAAK+B,QAAL,GAAsB,IAAtB;AACA,WAAKC,cAAL,GAAsB,IAAtB;AACA,WAAKG,OAAL,GAAsB,IAAtB;AACA,WAAKE,SAAL,GAAsB,IAAtB;AACA,WAAKC,QAAL,GAAsB,IAAtB;AACA,WAAKC,QAAL,GAAsB,IAAtB;AACA,WAAKC,aAAL,GAAsB,IAAtB;AACA,WAAKC,aAAL,GAAsB,IAAtB;AACD,KA5JqB,EA+JtB;;;AA/JsB,WAiKtBL,UAjKsB,uBAiKXN,MAjKW,EAiKH;AACjBA,4BACK1B,OADL,EAEK0B,MAFL;;AAKA,UAAI,OAAOA,OAAOvB,MAAd,KAAyB,QAA7B,EAAuC;AACrC,YAAIiE,KAAK5E,EAAEkC,OAAOvB,MAAT,EAAiBkE,IAAjB,CAAsB,IAAtB,CAAT;;AACA,YAAI,CAACD,EAAL,EAAS;AACPA,eAAKjB,KAAKmB,MAAL,CAAY7E,IAAZ,CAAL;AACAD,YAAEkC,OAAOvB,MAAT,EAAiBkE,IAAjB,CAAsB,IAAtB,EAA4BD,EAA5B;AACD;;AACD1C,eAAOvB,MAAP,SAAoBiE,EAApB;AACD;;AAEDjB,WAAKoB,eAAL,CAAqB9E,IAArB,EAA2BiC,MAA3B,EAAmCtB,WAAnC;AAEA,aAAOsB,MAAP;AACD,KAnLqB;;AAAA,WAqLtBmB,aArLsB,4BAqLN;AACd,aAAO,KAAKjB,cAAL,KAAwBE,MAAxB,GACH,KAAKF,cAAL,CAAoB4C,WADjB,GAC+B,KAAK5C,cAAL,CAAoB6C,SAD1D;AAED,KAxLqB;;AAAA,WA0LtB3B,gBA1LsB,+BA0LH;AACjB,aAAO,KAAKlB,cAAL,CAAoB8C,YAApB,IAAoCC,KAAKC,GAAL,CACzCC,SAASC,IAAT,CAAcJ,YAD2B,EAEzCG,SAASE,eAAT,CAAyBL,YAFgB,CAA3C;AAID,KA/LqB;;AAAA,WAiMtBM,gBAjMsB,+BAiMH;AACjB,aAAO,KAAKpD,cAAL,KAAwBE,MAAxB,GACHA,OAAOmD,WADJ,GACkB,KAAKrD,cAAL,CAAoB0B,qBAApB,GAA4CE,MADrE;AAED,KApMqB;;AAAA,WAsMtBhB,QAtMsB,uBAsMX;AACT,UAAMiC,YAAe,KAAK5B,aAAL,KAAuB,KAAKd,OAAL,CAAa9B,MAAzD;;AACA,UAAMyE,eAAe,KAAK5B,gBAAL,EAArB;;AACA,UAAMoC,YAAe,KAAKnD,OAAL,CAAa9B,MAAb,GACjByE,YADiB,GAEjB,KAAKM,gBAAL,EAFJ;;AAIA,UAAI,KAAK3C,aAAL,KAAuBqC,YAA3B,EAAyC;AACvC,aAAKjC,OAAL;AACD;;AAED,UAAIgC,aAAaS,SAAjB,EAA4B;AAC1B,YAAM/E,SAAS,KAAKgC,QAAL,CAAc,KAAKA,QAAL,CAAcgD,MAAd,GAAuB,CAArC,CAAf;;AAEA,YAAI,KAAK/C,aAAL,KAAuBjC,MAA3B,EAAmC;AACjC,eAAKiF,SAAL,CAAejF,MAAf;AACD;;AACD;AACD;;AAED,UAAI,KAAKiC,aAAL,IAAsBqC,YAAY,KAAKvC,QAAL,CAAc,CAAd,CAAlC,IAAsD,KAAKA,QAAL,CAAc,CAAd,IAAmB,CAA7E,EAAgF;AAC9E,aAAKE,aAAL,GAAqB,IAArB;;AACA,aAAKiD,MAAL;;AACA;AACD;;AAED,WAAK,IAAIC,IAAI,KAAKpD,QAAL,CAAciD,MAA3B,EAAmCG,GAAnC,GAAyC;AACvC,YAAMC,iBAAiB,KAAKnD,aAAL,KAAuB,KAAKD,QAAL,CAAcmD,CAAd,CAAvB,IAChBb,aAAa,KAAKvC,QAAL,CAAcoD,CAAd,CADG,KAEf,OAAO,KAAKpD,QAAL,CAAcoD,IAAI,CAAlB,CAAP,KAAgC,WAAhC,IACAb,YAAY,KAAKvC,QAAL,CAAcoD,IAAI,CAAlB,CAHG,CAAvB;;AAKA,YAAIC,cAAJ,EAAoB;AAClB,eAAKH,SAAL,CAAe,KAAKjD,QAAL,CAAcmD,CAAd,CAAf;AACD;AACF;AACF,KA1OqB;;AAAA,WA4OtBF,SA5OsB,sBA4OZjF,MA5OY,EA4OJ;AAChB,WAAKiC,aAAL,GAAqBjC,MAArB;;AAEA,WAAKkF,MAAL;;AAEA,UAAIG,UAAU,KAAKvD,SAAL,CAAewD,KAAf,CAAqB,GAArB,CAAd,CALgB,CAMhB;;;AACAD,gBAAcA,QAAQvC,GAAR,CAAY,UAACyC,QAAD,EAAc;AACtC,eAAUA,QAAH,uBAA4BvF,MAA5B,aACGuF,QADH,gBACqBvF,MADrB,SAAP;AAED,OAHa,CAAd;AAKA,UAAMwF,QAAQnG,EAAEgG,QAAQI,IAAR,CAAa,GAAb,CAAF,CAAd;;AAEA,UAAID,MAAME,QAAN,CAAepF,UAAUC,aAAzB,CAAJ,EAA6C;AAC3CiF,cAAMG,OAAN,CAAcjF,SAASM,QAAvB,EAAiC4E,IAAjC,CAAsClF,SAASQ,eAA/C,EAAgE2E,QAAhE,CAAyEvF,UAAUG,MAAnF;AACA+E,cAAMK,QAAN,CAAevF,UAAUG,MAAzB;AACD,OAHD,MAGO;AACL;AACA+E,cAAMK,QAAN,CAAevF,UAAUG,MAAzB,EAFK,CAGL;AACA;;AACA+E,cAAMM,OAAN,CAAcpF,SAASE,cAAvB,EAAuCmF,IAAvC,CAA+CrF,SAASG,SAAxD,UAAsEH,SAASK,UAA/E,EAA6F8E,QAA7F,CAAsGvF,UAAUG,MAAhH,EALK,CAML;;AACA+E,cAAMM,OAAN,CAAcpF,SAASE,cAAvB,EAAuCmF,IAAvC,CAA4CrF,SAASI,SAArD,EAAgEkF,QAAhE,CAAyEtF,SAASG,SAAlF,EAA6FgF,QAA7F,CAAsGvF,UAAUG,MAAhH;AACD;;AAEDpB,QAAE,KAAKoC,cAAP,EAAuBwE,OAAvB,CAA+B/F,MAAMC,QAArC,EAA+C;AAC7C+F,uBAAelG;AAD8B,OAA/C;AAGD,KA1QqB;;AAAA,WA4QtBkF,MA5QsB,qBA4Qb;AACP7F,QAAE,KAAKyC,SAAP,EAAkByB,MAAlB,CAAyB7C,SAASD,MAAlC,EAA0C0F,WAA1C,CAAsD7F,UAAUG,MAAhE;AACD,KA9QqB,EAiRtB;;;AAjRsB,cAmRf2F,gBAnRe,6BAmRE7E,MAnRF,EAmRU;AAC9B,aAAO,KAAK8E,IAAL,CAAU,YAAY;AAC3B,YAAIC,OAAYjH,EAAE,IAAF,EAAQiH,IAAR,CAAa9G,QAAb,CAAhB;;AACA,YAAMoC,UAAU,OAAOL,MAAP,KAAkB,QAAlB,IAA8BA,MAA9C;;AAEA,YAAI,CAAC+E,IAAL,EAAW;AACTA,iBAAO,IAAIlH,SAAJ,CAAc,IAAd,EAAoBwC,OAApB,CAAP;AACAvC,YAAE,IAAF,EAAQiH,IAAR,CAAa9G,QAAb,EAAuB8G,IAAvB;AACD;;AAED,YAAI,OAAO/E,MAAP,KAAkB,QAAtB,EAAgC;AAC9B,cAAI,OAAO+E,KAAK/E,MAAL,CAAP,KAAwB,WAA5B,EAAyC;AACvC,kBAAM,IAAIgF,KAAJ,wBAA8BhF,MAA9B,QAAN;AACD;;AACD+E,eAAK/E,MAAL;AACD;AACF,OAfM,CAAP;AAgBD,KApSqB;;AAAA;AAAA;AAAA,0BAuFD;AACnB,eAAOhC,OAAP;AACD;AAzFqB;AAAA;AAAA,0BA2FD;AACnB,eAAOM,OAAP;AACD;AA7FqB;;AAAA;AAAA;AA0SxB;;;;;;;AAMAR,IAAEsC,MAAF,EAAUQ,EAAV,CAAajC,MAAMG,aAAnB,EAAkC,YAAM;AACtC,QAAMmG,aAAanH,EAAEwD,SAAF,CAAYxD,EAAEqB,SAASC,QAAX,CAAZ,CAAnB;;AAEA,SAAK,IAAIwE,IAAIqB,WAAWxB,MAAxB,EAAgCG,GAAhC,GAAsC;AACpC,UAAMsB,OAAOpH,EAAEmH,WAAWrB,CAAX,CAAF,CAAb;;AACA/F,gBAAUgH,gBAAV,CAA2BM,IAA3B,CAAgCD,IAAhC,EAAsCA,KAAKH,IAAL,EAAtC;AACD;AACF,GAPD;AAUA;;;;;;AAMAjH,IAAEO,EAAF,CAAKN,IAAL,IAAyBF,UAAUgH,gBAAnC;AACA/G,IAAEO,EAAF,CAAKN,IAAL,EAAWqH,WAAX,GAAyBvH,SAAzB;;AACAC,IAAEO,EAAF,CAAKN,IAAL,EAAWsH,UAAX,GAAyB,YAAY;AACnCvH,MAAEO,EAAF,CAAKN,IAAL,IAAaK,kBAAb;AACA,WAAOP,UAAUgH,gBAAjB;AACD,GAHD;;AAKA,SAAOhH,SAAP;AAED,CAzUiB,CAyUfC,CAzUe,CAAlB","file":"scrollspy.js","sourcesContent":["import $ from 'jquery'\nimport Util from './util'\n\n\n/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.0.0-beta.3): scrollspy.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst ScrollSpy = (($) => {\n\n\n /**\n * ------------------------------------------------------------------------\n * Constants\n * ------------------------------------------------------------------------\n */\n\n const NAME = 'scrollspy'\n const VERSION = '4.0.0-beta.3'\n const DATA_KEY = 'bs.scrollspy'\n const EVENT_KEY = `.${DATA_KEY}`\n const DATA_API_KEY = '.data-api'\n const JQUERY_NO_CONFLICT = $.fn[NAME]\n\n const Default = {\n offset : 10,\n method : 'auto',\n target : ''\n }\n\n const DefaultType = {\n offset : 'number',\n method : 'string',\n target : '(string|element)'\n }\n\n const Event = {\n ACTIVATE : `activate${EVENT_KEY}`,\n SCROLL : `scroll${EVENT_KEY}`,\n LOAD_DATA_API : `load${EVENT_KEY}${DATA_API_KEY}`\n }\n\n const ClassName = {\n DROPDOWN_ITEM : 'dropdown-item',\n DROPDOWN_MENU : 'dropdown-menu',\n ACTIVE : 'active'\n }\n\n const Selector = {\n DATA_SPY : '[data-spy=\"scroll\"]',\n ACTIVE : '.active',\n NAV_LIST_GROUP : '.nav, .list-group',\n NAV_LINKS : '.nav-link',\n NAV_ITEMS : '.nav-item',\n LIST_ITEMS : '.list-group-item',\n DROPDOWN : '.dropdown',\n DROPDOWN_ITEMS : '.dropdown-item',\n DROPDOWN_TOGGLE : '.dropdown-toggle'\n }\n\n const OffsetMethod = {\n OFFSET : 'offset',\n POSITION : 'position'\n }\n\n\n /**\n * ------------------------------------------------------------------------\n * Class Definition\n * ------------------------------------------------------------------------\n */\n\n class ScrollSpy {\n\n constructor(element, config) {\n this._element = element\n this._scrollElement = element.tagName === 'BODY' ? window : element\n this._config = this._getConfig(config)\n this._selector = `${this._config.target} ${Selector.NAV_LINKS},`\n + `${this._config.target} ${Selector.LIST_ITEMS},`\n + `${this._config.target} ${Selector.DROPDOWN_ITEMS}`\n this._offsets = []\n this._targets = []\n this._activeTarget = null\n this._scrollHeight = 0\n\n $(this._scrollElement).on(Event.SCROLL, (event) => this._process(event))\n\n this.refresh()\n this._process()\n }\n\n\n // getters\n\n static get VERSION() {\n return VERSION\n }\n\n static get Default() {\n return Default\n }\n\n\n // public\n\n refresh() {\n const autoMethod = this._scrollElement !== this._scrollElement.window ?\n OffsetMethod.POSITION : OffsetMethod.OFFSET\n\n const offsetMethod = this._config.method === 'auto' ?\n autoMethod : this._config.method\n\n const offsetBase = offsetMethod === OffsetMethod.POSITION ?\n this._getScrollTop() : 0\n\n this._offsets = []\n this._targets = []\n\n this._scrollHeight = this._getScrollHeight()\n\n const targets = $.makeArray($(this._selector))\n\n targets\n .map((element) => {\n let target\n const targetSelector = Util.getSelectorFromElement(element)\n\n if (targetSelector) {\n target = $(targetSelector)[0]\n }\n\n if (target) {\n const targetBCR = target.getBoundingClientRect()\n if (targetBCR.width || targetBCR.height) {\n // todo (fat): remove sketch reliance on jQuery position/offset\n return [\n $(target)[offsetMethod]().top + offsetBase,\n targetSelector\n ]\n }\n }\n return null\n })\n .filter((item) => item)\n .sort((a, b) => a[0] - b[0])\n .forEach((item) => {\n this._offsets.push(item[0])\n this._targets.push(item[1])\n })\n }\n\n dispose() {\n $.removeData(this._element, DATA_KEY)\n $(this._scrollElement).off(EVENT_KEY)\n\n this._element = null\n this._scrollElement = null\n this._config = null\n this._selector = null\n this._offsets = null\n this._targets = null\n this._activeTarget = null\n this._scrollHeight = null\n }\n\n\n // private\n\n _getConfig(config) {\n config = {\n ...Default,\n ...config\n }\n\n if (typeof config.target !== 'string') {\n let id = $(config.target).attr('id')\n if (!id) {\n id = Util.getUID(NAME)\n $(config.target).attr('id', id)\n }\n config.target = `#${id}`\n }\n\n Util.typeCheckConfig(NAME, config, DefaultType)\n\n return config\n }\n\n _getScrollTop() {\n return this._scrollElement === window ?\n this._scrollElement.pageYOffset : this._scrollElement.scrollTop\n }\n\n _getScrollHeight() {\n return this._scrollElement.scrollHeight || Math.max(\n document.body.scrollHeight,\n document.documentElement.scrollHeight\n )\n }\n\n _getOffsetHeight() {\n return this._scrollElement === window ?\n window.innerHeight : this._scrollElement.getBoundingClientRect().height\n }\n\n _process() {\n const scrollTop = this._getScrollTop() + this._config.offset\n const scrollHeight = this._getScrollHeight()\n const maxScroll = this._config.offset\n + scrollHeight\n - this._getOffsetHeight()\n\n if (this._scrollHeight !== scrollHeight) {\n this.refresh()\n }\n\n if (scrollTop >= maxScroll) {\n const target = this._targets[this._targets.length - 1]\n\n if (this._activeTarget !== target) {\n this._activate(target)\n }\n return\n }\n\n if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {\n this._activeTarget = null\n this._clear()\n return\n }\n\n for (let i = this._offsets.length; i--;) {\n const isActiveTarget = this._activeTarget !== this._targets[i]\n && scrollTop >= this._offsets[i]\n && (typeof this._offsets[i + 1] === 'undefined' ||\n scrollTop < this._offsets[i + 1])\n\n if (isActiveTarget) {\n this._activate(this._targets[i])\n }\n }\n }\n\n _activate(target) {\n this._activeTarget = target\n\n this._clear()\n\n let queries = this._selector.split(',')\n // eslint-disable-next-line arrow-body-style\n queries = queries.map((selector) => {\n return `${selector}[data-target=\"${target}\"],` +\n `${selector}[href=\"${target}\"]`\n })\n\n const $link = $(queries.join(','))\n\n if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {\n $link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE)\n $link.addClass(ClassName.ACTIVE)\n } else {\n // Set triggered link as active\n $link.addClass(ClassName.ACTIVE)\n // Set triggered links parents as active\n // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor\n $link.parents(Selector.NAV_LIST_GROUP).prev(`${Selector.NAV_LINKS}, ${Selector.LIST_ITEMS}`).addClass(ClassName.ACTIVE)\n // Handle special case when .nav-link is inside .nav-item\n $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE)\n }\n\n $(this._scrollElement).trigger(Event.ACTIVATE, {\n relatedTarget: target\n })\n }\n\n _clear() {\n $(this._selector).filter(Selector.ACTIVE).removeClass(ClassName.ACTIVE)\n }\n\n\n // static\n\n static _jQueryInterface(config) {\n return this.each(function () {\n let data = $(this).data(DATA_KEY)\n const _config = typeof config === 'object' && config\n\n if (!data) {\n data = new ScrollSpy(this, _config)\n $(this).data(DATA_KEY, data)\n }\n\n if (typeof config === 'string') {\n if (typeof data[config] === 'undefined') {\n throw new Error(`No method named \"${config}\"`)\n }\n data[config]()\n }\n })\n }\n\n\n }\n\n\n /**\n * ------------------------------------------------------------------------\n * Data Api implementation\n * ------------------------------------------------------------------------\n */\n\n $(window).on(Event.LOAD_DATA_API, () => {\n const scrollSpys = $.makeArray($(Selector.DATA_SPY))\n\n for (let i = scrollSpys.length; i--;) {\n const $spy = $(scrollSpys[i])\n ScrollSpy._jQueryInterface.call($spy, $spy.data())\n }\n })\n\n\n /**\n * ------------------------------------------------------------------------\n * jQuery\n * ------------------------------------------------------------------------\n */\n\n $.fn[NAME] = ScrollSpy._jQueryInterface\n $.fn[NAME].Constructor = ScrollSpy\n $.fn[NAME].noConflict = function () {\n $.fn[NAME] = JQUERY_NO_CONFLICT\n return ScrollSpy._jQueryInterface\n }\n\n return ScrollSpy\n\n})($)\n\nexport default ScrollSpy\n"]}
|
