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/**
* --------------------------------------------------------------------------
* Bootstrap (v5.0.0-alpha2): dom/polyfill.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
import { getUID } from '../util/index'
let find = Element.prototype.querySelectorAll
let findOne = Element.prototype.querySelector
const scopeSelectorRegex = /:scope\b/
const supportsScopeQuery = (() => {
const element = document.createElement('div')
try {
element.querySelectorAll(':scope *')
} catch (_) {
return false
}
return true
})()
if (!supportsScopeQuery) {
find = function (selector) {
if (!scopeSelectorRegex.test(selector)) {
return this.querySelectorAll(selector)
}
const hasId = Boolean(this.id)
if (!hasId) {
this.id = getUID('scope')
}
let nodeList = null
try {
selector = selector.replace(scopeSelectorRegex, `#${this.id}`)
nodeList = this.querySelectorAll(selector)
} finally {
if (!hasId) {
this.removeAttribute('id')
}
}
return nodeList
}
findOne = function (selector) {
if (!scopeSelectorRegex.test(selector)) {
return this.querySelector(selector)
}
const matches = find.call(this, selector)
return matches[0] ? matches[0] : null
}
}
export {
find,
findOne
}
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