+++ /dev/null
-import $ from 'jquery'
-import Util from './util'
-
-/**
- * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): scrollspy.js
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * --------------------------------------------------------------------------
- */
-
-const ScrollSpy = (($) => {
- /**
- * ------------------------------------------------------------------------
- * Constants
- * ------------------------------------------------------------------------
- */
-
- const NAME = 'scrollspy'
- const VERSION = '4.1.3'
- const DATA_KEY = 'bs.scrollspy'
- const EVENT_KEY = `.${DATA_KEY}`
- const DATA_API_KEY = '.data-api'
- const JQUERY_NO_CONFLICT = $.fn[NAME]
-
- const Default = {
- offset : 10,
- method : 'auto',
- target : ''
- }
-
- const DefaultType = {
- offset : 'number',
- method : 'string',
- target : '(string|element)'
- }
-
- const Event = {
- ACTIVATE : `activate${EVENT_KEY}`,
- SCROLL : `scroll${EVENT_KEY}`,
- LOAD_DATA_API : `load${EVENT_KEY}${DATA_API_KEY}`
- }
-
- const ClassName = {
- DROPDOWN_ITEM : 'dropdown-item',
- DROPDOWN_MENU : 'dropdown-menu',
- ACTIVE : 'active'
- }
-
- const Selector = {
- DATA_SPY : '[data-spy="scroll"]',
- ACTIVE : '.active',
- NAV_LIST_GROUP : '.nav, .list-group',
- NAV_LINKS : '.nav-link',
- NAV_ITEMS : '.nav-item',
- LIST_ITEMS : '.list-group-item',
- DROPDOWN : '.dropdown',
- DROPDOWN_ITEMS : '.dropdown-item',
- DROPDOWN_TOGGLE : '.dropdown-toggle'
- }
-
- const OffsetMethod = {
- OFFSET : 'offset',
- POSITION : 'position'
- }
-
- /**
- * ------------------------------------------------------------------------
- * Class Definition
- * ------------------------------------------------------------------------
- */
-
- class ScrollSpy {
- constructor(element, config) {
- this._element = element
- this._scrollElement = element.tagName === 'BODY' ? window : element
- this._config = this._getConfig(config)
- this._selector = `${this._config.target} ${Selector.NAV_LINKS},` +
- `${this._config.target} ${Selector.LIST_ITEMS},` +
- `${this._config.target} ${Selector.DROPDOWN_ITEMS}`
- this._offsets = []
- this._targets = []
- this._activeTarget = null
- this._scrollHeight = 0
-
- $(this._scrollElement).on(Event.SCROLL, (event) => this._process(event))
-
- this.refresh()
- this._process()
- }
-
- // Getters
-
- static get VERSION() {
- return VERSION
- }
-
- static get Default() {
- return Default
- }
-
- // Public
-
- refresh() {
- const autoMethod = this._scrollElement === this._scrollElement.window
- ? OffsetMethod.OFFSET : OffsetMethod.POSITION
-
- const offsetMethod = this._config.method === 'auto'
- ? autoMethod : this._config.method
-
- const offsetBase = offsetMethod === OffsetMethod.POSITION
- ? this._getScrollTop() : 0
-
- this._offsets = []
- this._targets = []
-
- this._scrollHeight = this._getScrollHeight()
-
- const targets = [].slice.call(document.querySelectorAll(this._selector))
-
- targets
- .map((element) => {
- let target
- const targetSelector = Util.getSelectorFromElement(element)
-
- if (targetSelector) {
- target = document.querySelector(targetSelector)
- }
-
- if (target) {
- const targetBCR = target.getBoundingClientRect()
- if (targetBCR.width || targetBCR.height) {
- // TODO (fat): remove sketch reliance on jQuery position/offset
- return [
- $(target)[offsetMethod]().top + offsetBase,
- targetSelector
- ]
- }
- }
- return null
- })
- .filter((item) => item)
- .sort((a, b) => a[0] - b[0])
- .forEach((item) => {
- this._offsets.push(item[0])
- this._targets.push(item[1])
- })
- }
-
- dispose() {
- $.removeData(this._element, DATA_KEY)
- $(this._scrollElement).off(EVENT_KEY)
-
- this._element = null
- this._scrollElement = null
- this._config = null
- this._selector = null
- this._offsets = null
- this._targets = null
- this._activeTarget = null
- this._scrollHeight = null
- }
-
- // Private
-
- _getConfig(config) {
- config = {
- ...Default,
- ...typeof config === 'object' && config ? config : {}
- }
-
- if (typeof config.target !== 'string') {
- let id = $(config.target).attr('id')
- if (!id) {
- id = Util.getUID(NAME)
- $(config.target).attr('id', id)
- }
- config.target = `#${id}`
- }
-
- Util.typeCheckConfig(NAME, config, DefaultType)
-
- return config
- }
-
- _getScrollTop() {
- return this._scrollElement === window
- ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop
- }
-
- _getScrollHeight() {
- return this._scrollElement.scrollHeight || Math.max(
- document.body.scrollHeight,
- document.documentElement.scrollHeight
- )
- }
-
- _getOffsetHeight() {
- return this._scrollElement === window
- ? window.innerHeight : this._scrollElement.getBoundingClientRect().height
- }
-
- _process() {
- const scrollTop = this._getScrollTop() + this._config.offset
- const scrollHeight = this._getScrollHeight()
- const maxScroll = this._config.offset +
- scrollHeight -
- this._getOffsetHeight()
-
- if (this._scrollHeight !== scrollHeight) {
- this.refresh()
- }
-
- if (scrollTop >= maxScroll) {
- const target = this._targets[this._targets.length - 1]
-
- if (this._activeTarget !== target) {
- this._activate(target)
- }
- return
- }
-
- if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
- this._activeTarget = null
- this._clear()
- return
- }
-
- const offsetLength = this._offsets.length
- for (let i = offsetLength; i--;) {
- const isActiveTarget = this._activeTarget !== this._targets[i] &&
- scrollTop >= this._offsets[i] &&
- (typeof this._offsets[i + 1] === 'undefined' ||
- scrollTop < this._offsets[i + 1])
-
- if (isActiveTarget) {
- this._activate(this._targets[i])
- }
- }
- }
-
- _activate(target) {
- this._activeTarget = target
-
- this._clear()
-
- let queries = this._selector.split(',')
- // eslint-disable-next-line arrow-body-style
- queries = queries.map((selector) => {
- return `${selector}[data-target="${target}"],` +
- `${selector}[href="${target}"]`
- })
-
- const $link = $([].slice.call(document.querySelectorAll(queries.join(','))))
-
- if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {
- $link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE)
- $link.addClass(ClassName.ACTIVE)
- } else {
- // Set triggered link as active
- $link.addClass(ClassName.ACTIVE)
- // Set triggered links parents as active
- // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
- $link.parents(Selector.NAV_LIST_GROUP).prev(`${Selector.NAV_LINKS}, ${Selector.LIST_ITEMS}`).addClass(ClassName.ACTIVE)
- // Handle special case when .nav-link is inside .nav-item
- $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE)
- }
-
- $(this._scrollElement).trigger(Event.ACTIVATE, {
- relatedTarget: target
- })
- }
-
- _clear() {
- const nodes = [].slice.call(document.querySelectorAll(this._selector))
- $(nodes).filter(Selector.ACTIVE).removeClass(ClassName.ACTIVE)
- }
-
- // Static
-
- static _jQueryInterface(config) {
- return this.each(function () {
- let data = $(this).data(DATA_KEY)
- const _config = typeof config === 'object' && config
-
- if (!data) {
- data = new ScrollSpy(this, _config)
- $(this).data(DATA_KEY, data)
- }
-
- if (typeof config === 'string') {
- if (typeof data[config] === 'undefined') {
- throw new TypeError(`No method named "${config}"`)
- }
- data[config]()
- }
- })
- }
- }
-
- /**
- * ------------------------------------------------------------------------
- * Data Api implementation
- * ------------------------------------------------------------------------
- */
-
- $(window).on(Event.LOAD_DATA_API, () => {
- const scrollSpys = [].slice.call(document.querySelectorAll(Selector.DATA_SPY))
-
- const scrollSpysLength = scrollSpys.length
- for (let i = scrollSpysLength; i--;) {
- const $spy = $(scrollSpys[i])
- ScrollSpy._jQueryInterface.call($spy, $spy.data())
- }
- })
-
- /**
- * ------------------------------------------------------------------------
- * jQuery
- * ------------------------------------------------------------------------
- */
-
- $.fn[NAME] = ScrollSpy._jQueryInterface
- $.fn[NAME].Constructor = ScrollSpy
- $.fn[NAME].noConflict = function () {
- $.fn[NAME] = JQUERY_NO_CONFLICT
- return ScrollSpy._jQueryInterface
- }
-
- return ScrollSpy
-})($)
-
-export default ScrollSpy
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