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path: root/js/src/scrollspy.js
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-rw-r--r--js/src/scrollspy.js149
1 files changed, 79 insertions, 70 deletions
diff --git a/js/src/scrollspy.js b/js/src/scrollspy.js
index 74b60b7348..010af89bd8 100644
--- a/js/src/scrollspy.js
+++ b/js/src/scrollspy.js
@@ -23,51 +23,51 @@ import SelectorEngine from './dom/selectorEngine'
* ------------------------------------------------------------------------
*/
-const NAME = 'scrollspy'
-const VERSION = '4.3.1'
-const DATA_KEY = 'bs.scrollspy'
-const EVENT_KEY = `.${DATA_KEY}`
-const DATA_API_KEY = '.data-api'
+const NAME = 'scrollspy'
+const VERSION = '4.3.1'
+const DATA_KEY = 'bs.scrollspy'
+const EVENT_KEY = `.${DATA_KEY}`
+const DATA_API_KEY = '.data-api'
const Default = {
- offset : 10,
- method : 'auto',
- target : ''
+ offset: 10,
+ method: 'auto',
+ target: ''
}
const DefaultType = {
- offset : 'number',
- method : 'string',
- target : '(string|element)'
+ 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}`
+ 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'
+ 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'
+ 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'
+ OFFSET: 'offset',
+ POSITION: 'position'
}
/**
@@ -78,18 +78,18 @@ const OffsetMethod = {
class ScrollSpy {
constructor(element, config) {
- this._element = element
+ this._element = element
this._scrollElement = element.tagName === 'BODY' ? window : element
- this._config = this._getConfig(config)
- this._selector = `${this._config.target} ${Selector.NAV_LINKS},` +
+ this._config = this._getConfig(config)
+ this._selector = `${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._offsets = []
+ this._targets = []
+ this._activeTarget = null
+ this._scrollHeight = 0
- EventHandler.on(this._scrollElement, Event.SCROLL, (event) => this._process(event))
+ EventHandler.on(this._scrollElement, Event.SCROLL, event => this._process(event))
this.refresh()
this._process()
@@ -110,14 +110,17 @@ class ScrollSpy {
// Public
refresh() {
- const autoMethod = this._scrollElement === this._scrollElement.window
- ? OffsetMethod.OFFSET : OffsetMethod.POSITION
+ const autoMethod = this._scrollElement === this._scrollElement.window ?
+ OffsetMethod.OFFSET :
+ OffsetMethod.POSITION
- const offsetMethod = this._config.method === 'auto'
- ? autoMethod : this._config.method
+ const offsetMethod = this._config.method === 'auto' ?
+ autoMethod :
+ this._config.method
- const offsetBase = offsetMethod === OffsetMethod.POSITION
- ? this._getScrollTop() : 0
+ const offsetBase = offsetMethod === OffsetMethod.POSITION ?
+ this._getScrollTop() :
+ 0
this._offsets = []
this._targets = []
@@ -127,7 +130,7 @@ class ScrollSpy {
const targets = makeArray(SelectorEngine.find(this._selector))
targets
- .map((element) => {
+ .map(element => {
let target
const targetSelector = getSelectorFromElement(element)
@@ -145,11 +148,12 @@ class ScrollSpy {
]
}
}
+
return null
})
- .filter((item) => item)
+ .filter(item => item)
.sort((a, b) => a[0] - b[0])
- .forEach((item) => {
+ .forEach(item => {
this._offsets.push(item[0])
this._targets.push(item[1])
})
@@ -159,14 +163,14 @@ class ScrollSpy {
Data.removeData(this._element, DATA_KEY)
EventHandler.off(this._scrollElement, EVENT_KEY)
- this._element = null
+ this._element = null
this._scrollElement = null
- this._config = null
- this._selector = null
- this._offsets = null
- this._targets = null
- this._activeTarget = null
- this._scrollHeight = null
+ this._config = null
+ this._selector = null
+ this._offsets = null
+ this._targets = null
+ this._activeTarget = null
+ this._scrollHeight = null
}
// Private
@@ -178,11 +182,12 @@ class ScrollSpy {
}
if (typeof config.target !== 'string') {
- let id = config.target.id
+ let { id } = config.target
if (!id) {
id = getUID(NAME)
config.target.id = id
}
+
config.target = `#${id}`
}
@@ -192,8 +197,9 @@ class ScrollSpy {
}
_getScrollTop() {
- return this._scrollElement === window
- ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop
+ return this._scrollElement === window ?
+ this._scrollElement.pageYOffset :
+ this._scrollElement.scrollTop
}
_getScrollHeight() {
@@ -204,14 +210,15 @@ class ScrollSpy {
}
_getOffsetHeight() {
- return this._scrollElement === window
- ? window.innerHeight : this._scrollElement.getBoundingClientRect().height
+ return this._scrollElement === window ?
+ window.innerHeight :
+ this._scrollElement.getBoundingClientRect().height
}
_process() {
- const scrollTop = this._getScrollTop() + this._config.offset
+ const scrollTop = this._getScrollTop() + this._config.offset
const scrollHeight = this._getScrollHeight()
- const maxScroll = this._config.offset +
+ const maxScroll = this._config.offset +
scrollHeight -
this._getOffsetHeight()
@@ -225,6 +232,7 @@ class ScrollSpy {
if (this._activeTarget !== target) {
this._activate(target)
}
+
return
}
@@ -253,7 +261,7 @@ class ScrollSpy {
this._clear()
const queries = this._selector.split(',')
- .map((selector) => `${selector}[data-target="${target}"],${selector}[href="${target}"]`)
+ .map(selector => `${selector}[data-target="${target}"],${selector}[href="${target}"]`)
const link = SelectorEngine.findOne(queries.join(','))
@@ -269,17 +277,17 @@ class ScrollSpy {
SelectorEngine
.parents(link, Selector.NAV_LIST_GROUP)
- .forEach((listGroup) => {
+ .forEach(listGroup => {
// Set triggered links parents as active
// With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
SelectorEngine.prev(listGroup, `${Selector.NAV_LINKS}, ${Selector.LIST_ITEMS}`)
- .forEach((item) => item.classList.add(ClassName.ACTIVE))
+ .forEach(item => item.classList.add(ClassName.ACTIVE))
// Handle special case when .nav-link is inside .nav-item
SelectorEngine.prev(listGroup, Selector.NAV_ITEMS)
- .forEach((navItem) => {
+ .forEach(navItem => {
SelectorEngine.children(navItem, Selector.NAV_LINKS)
- .forEach((item) => item.classList.add(ClassName.ACTIVE))
+ .forEach(item => item.classList.add(ClassName.ACTIVE))
})
})
}
@@ -291,8 +299,8 @@ class ScrollSpy {
_clear() {
makeArray(SelectorEngine.find(this._selector))
- .filter((node) => node.classList.contains(ClassName.ACTIVE))
- .forEach((node) => node.classList.remove(ClassName.ACTIVE))
+ .filter(node => node.classList.contains(ClassName.ACTIVE))
+ .forEach(node => node.classList.remove(ClassName.ACTIVE))
}
// Static
@@ -310,6 +318,7 @@ class ScrollSpy {
if (typeof data[config] === 'undefined') {
throw new TypeError(`No method named "${config}"`)
}
+
data[config]()
}
})
@@ -328,7 +337,7 @@ class ScrollSpy {
EventHandler.on(window, Event.LOAD_DATA_API, () => {
makeArray(SelectorEngine.find(Selector.DATA_SPY))
- .forEach((spy) => new ScrollSpy(spy, Manipulator.getDataAttributes(spy)))
+ .forEach(spy => new ScrollSpy(spy, Manipulator.getDataAttributes(spy)))
})
/**
@@ -339,9 +348,9 @@ EventHandler.on(window, Event.LOAD_DATA_API, () => {
if (typeof $ !== 'undefined') {
const JQUERY_NO_CONFLICT = $.fn[NAME]
- $.fn[NAME] = ScrollSpy._jQueryInterface
- $.fn[NAME].Constructor = ScrollSpy
- $.fn[NAME].noConflict = () => {
+ $.fn[NAME] = ScrollSpy._jQueryInterface
+ $.fn[NAME].Constructor = ScrollSpy
+ $.fn[NAME].noConflict = () => {
$.fn[NAME] = JQUERY_NO_CONFLICT
return ScrollSpy._jQueryInterface
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 11:59:08 +0300