590 lines
17 KiB
JavaScript
590 lines
17 KiB
JavaScript
const TRANSITION_EVENTS = ['transitionend', 'webkitTransitionEnd', 'oTransitionEnd']
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// const TRANSITION_PROPERTIES = ['transition', 'MozTransition', 'webkitTransition', 'WebkitTransition', 'OTransition']
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class Menu {
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constructor(el, config = {}, _PS = null) {
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this._el = el
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this._animate = config.animate !== false
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this._accordion = config.accordion !== false
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this._closeChildren = Boolean(config.closeChildren)
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this._onOpen = config.onOpen || (() => {})
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this._onOpened = config.onOpened || (() => {})
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this._onClose = config.onClose || (() => {})
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this._onClosed = config.onClosed || (() => {})
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this._psScroll = null
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this._topParent = null
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this._menuBgClass = null
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el.classList.add('menu')
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el.classList[this._animate ? 'remove' : 'add']('menu-no-animation') // check
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el.classList.add('menu-vertical')
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const PerfectScrollbarLib = _PS || window.PerfectScrollbar
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if (PerfectScrollbarLib) {
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this._scrollbar = new PerfectScrollbarLib(el.querySelector('.menu-inner'), {
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suppressScrollX: true,
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wheelPropagation: !Menu._hasClass('layout-menu-fixed layout-menu-fixed-offcanvas')
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})
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window.Helpers.menuPsScroll = this._scrollbar
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} else {
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el.querySelector('.menu-inner').classList.add('overflow-auto')
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}
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// Add data attribute for bg color class of menu
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const menuClassList = el.classList
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for (let i = 0; i < menuClassList.length; i++) {
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if (menuClassList[i].startsWith('bg-')) {
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this._menuBgClass = menuClassList[i]
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}
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}
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el.setAttribute('data-bg-class', this._menuBgClass)
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this._bindEvents()
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// Link menu instance to element
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el.menuInstance = this
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}
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_bindEvents() {
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// Click Event
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this._evntElClick = e => {
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// Find top parent element
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if (e.target.closest('ul') && e.target.closest('ul').classList.contains('menu-inner')) {
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const menuItem = Menu._findParent(e.target, 'menu-item', false)
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// eslint-disable-next-line prefer-destructuring
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if (menuItem) this._topParent = menuItem.childNodes[0]
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}
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const toggleLink = e.target.classList.contains('menu-toggle')
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? e.target
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: Menu._findParent(e.target, 'menu-toggle', false)
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if (toggleLink) {
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e.preventDefault()
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if (toggleLink.getAttribute('data-hover') !== 'true') {
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this.toggle(toggleLink)
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}
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}
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}
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if (window.Helpers.isMobileDevice) this._el.addEventListener('click', this._evntElClick)
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this._evntWindowResize = () => {
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this.update()
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if (this._lastWidth !== window.innerWidth) {
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this._lastWidth = window.innerWidth
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this.update()
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}
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const horizontalMenuTemplate = document.querySelector("[data-template^='horizontal-menu']")
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if (!this._horizontal && !horizontalMenuTemplate) this.manageScroll()
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}
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window.addEventListener('resize', this._evntWindowResize)
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}
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static childOf(/* child node */ c, /* parent node */ p) {
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// returns boolean
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if (c.parentNode) {
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while ((c = c.parentNode) && c !== p);
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return !!c
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}
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return false
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}
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_unbindEvents() {
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if (this._evntElClick) {
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this._el.removeEventListener('click', this._evntElClick)
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this._evntElClick = null
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}
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if (this._evntElMouseOver) {
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this._el.removeEventListener('mouseover', this._evntElMouseOver)
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this._evntElMouseOver = null
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}
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if (this._evntElMouseOut) {
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this._el.removeEventListener('mouseout', this._evntElMouseOut)
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this._evntElMouseOut = null
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}
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if (this._evntWindowResize) {
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window.removeEventListener('resize', this._evntWindowResize)
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this._evntWindowResize = null
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}
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if (this._evntBodyClick) {
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document.body.removeEventListener('click', this._evntBodyClick)
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this._evntBodyClick = null
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}
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if (this._evntInnerMousemove) {
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this._inner.removeEventListener('mousemove', this._evntInnerMousemove)
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this._evntInnerMousemove = null
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}
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if (this._evntInnerMouseleave) {
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this._inner.removeEventListener('mouseleave', this._evntInnerMouseleave)
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this._evntInnerMouseleave = null
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}
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}
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static _isRoot(item) {
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return !Menu._findParent(item, 'menu-item', false)
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}
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static _findParent(el, cls, throwError = true) {
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if (el.tagName.toUpperCase() === 'BODY') return null
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el = el.parentNode
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while (el.tagName.toUpperCase() !== 'BODY' && !el.classList.contains(cls)) {
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el = el.parentNode
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}
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el = el.tagName.toUpperCase() !== 'BODY' ? el : null
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if (!el && throwError) throw new Error(`Cannot find \`.${cls}\` parent element`)
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return el
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}
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static _findChild(el, cls) {
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const items = el.childNodes
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const found = []
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for (let i = 0, l = items.length; i < l; i++) {
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if (items[i].classList) {
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let passed = 0
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for (let j = 0; j < cls.length; j++) {
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if (items[i].classList.contains(cls[j])) passed += 1
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}
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if (cls.length === passed) found.push(items[i])
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}
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}
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return found
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}
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static _findMenu(item) {
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let curEl = item.childNodes[0]
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let menu = null
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while (curEl && !menu) {
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if (curEl.classList && curEl.classList.contains('menu-sub')) menu = curEl
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curEl = curEl.nextSibling
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}
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if (!menu) throw new Error('Cannot find `.menu-sub` element for the current `.menu-toggle`')
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return menu
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}
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// Has class
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static _hasClass(cls, el = window.Helpers.ROOT_EL) {
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let result = false
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cls.split(' ').forEach(c => {
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if (el.classList.contains(c)) result = true
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})
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return result
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}
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open(el, closeChildren = this._closeChildren) {
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const item = this._findUnopenedParent(Menu._getItem(el, true), closeChildren)
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if (!item) return
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const toggleLink = Menu._getLink(item, true)
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Menu._promisify(this._onOpen, this, item, toggleLink, Menu._findMenu(item))
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.then(() => {
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if (!this._horizontal || !Menu._isRoot(item)) {
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if (this._animate && !this._horizontal) {
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window.requestAnimationFrame(() => this._toggleAnimation(true, item, false))
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if (this._accordion) this._closeOther(item, closeChildren)
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} else if (this._animate) {
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// eslint-disable-next-line no-unused-expressions
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this._onOpened && this._onOpened(this, item, toggleLink, Menu._findMenu(item))
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} else {
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item.classList.add('open')
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// eslint-disable-next-line no-unused-expressions
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this._onOpened && this._onOpened(this, item, toggleLink, Menu._findMenu(item))
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if (this._accordion) this._closeOther(item, closeChildren)
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}
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} else {
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// eslint-disable-next-line no-unused-expressions
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this._onOpened && this._onOpened(this, item, toggleLink, Menu._findMenu(item))
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}
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})
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.catch(() => {})
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}
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close(el, closeChildren = this._closeChildren, _autoClose = false) {
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const item = Menu._getItem(el, true)
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const toggleLink = Menu._getLink(el, true)
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if (!item.classList.contains('open') || item.classList.contains('disabled')) return
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Menu._promisify(this._onClose, this, item, toggleLink, Menu._findMenu(item), _autoClose)
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.then(() => {
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if (!this._horizontal || !Menu._isRoot(item)) {
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if (this._animate && !this._horizontal) {
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window.requestAnimationFrame(() => this._toggleAnimation(false, item, closeChildren))
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} else {
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item.classList.remove('open')
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if (closeChildren) {
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const opened = item.querySelectorAll('.menu-item.open')
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for (let i = 0, l = opened.length; i < l; i++) opened[i].classList.remove('open')
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}
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// eslint-disable-next-line no-unused-expressions
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this._onClosed && this._onClosed(this, item, toggleLink, Menu._findMenu(item))
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}
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} else {
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// eslint-disable-next-line no-unused-expressions
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this._onClosed && this._onClosed(this, item, toggleLink, Menu._findMenu(item))
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}
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})
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.catch(() => {})
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}
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_closeOther(item, closeChildren) {
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const opened = Menu._findChild(item.parentNode, ['menu-item', 'open'])
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for (let i = 0, l = opened.length; i < l; i++) {
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if (opened[i] !== item) this.close(opened[i], closeChildren)
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}
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}
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toggle(el, closeChildren = this._closeChildren) {
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const item = Menu._getItem(el, true)
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// const toggleLink = Menu._getLink(el, true)
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if (item.classList.contains('open')) this.close(item, closeChildren)
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else this.open(item, closeChildren)
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}
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static _getItem(el, toggle) {
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let item = null
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const selector = toggle ? 'menu-toggle' : 'menu-link'
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if (el.classList.contains('menu-item')) {
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if (Menu._findChild(el, [selector]).length) item = el
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} else if (el.classList.contains(selector)) {
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item = el.parentNode.classList.contains('menu-item') ? el.parentNode : null
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}
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if (!item) {
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throw new Error(`${toggle ? 'Toggable ' : ''}\`.menu-item\` element not found.`)
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}
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return item
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}
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static _getLink(el, toggle) {
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let found = []
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const selector = toggle ? 'menu-toggle' : 'menu-link'
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if (el.classList.contains(selector)) found = [el]
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else if (el.classList.contains('menu-item')) found = Menu._findChild(el, [selector])
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if (!found.length) throw new Error(`\`${selector}\` element not found.`)
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return found[0]
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}
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_findUnopenedParent(item, closeChildren) {
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let tree = []
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let parentItem = null
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while (item) {
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if (item.classList.contains('disabled')) {
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parentItem = null
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tree = []
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} else {
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if (!item.classList.contains('open')) parentItem = item
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tree.push(item)
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}
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item = Menu._findParent(item, 'menu-item', false)
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}
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if (!parentItem) return null
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if (tree.length === 1) return parentItem
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tree = tree.slice(0, tree.indexOf(parentItem))
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for (let i = 0, l = tree.length; i < l; i++) {
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tree[i].classList.add('open')
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if (this._accordion) {
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const openedItems = Menu._findChild(tree[i].parentNode, ['menu-item', 'open'])
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for (let j = 0, k = openedItems.length; j < k; j++) {
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if (openedItems[j] !== tree[i]) {
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openedItems[j].classList.remove('open')
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if (closeChildren) {
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const openedChildren = openedItems[j].querySelectorAll('.menu-item.open')
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for (let x = 0, z = openedChildren.length; x < z; x++) {
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openedChildren[x].classList.remove('open')
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}
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}
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}
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}
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}
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}
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return parentItem
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}
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_toggleAnimation(open, item, closeChildren) {
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const toggleLink = Menu._getLink(item, true)
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const menu = Menu._findMenu(item)
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Menu._unbindAnimationEndEvent(item)
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const linkHeight = Math.round(toggleLink.getBoundingClientRect().height)
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item.style.overflow = 'hidden'
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const clearItemStyle = () => {
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item.classList.remove('menu-item-animating')
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item.classList.remove('menu-item-closing')
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item.style.overflow = null
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item.style.height = null
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this.update()
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}
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if (open) {
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item.style.height = `${linkHeight}px`
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item.classList.add('menu-item-animating')
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item.classList.add('open')
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Menu._bindAnimationEndEvent(item, () => {
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clearItemStyle()
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this._onOpened(this, item, toggleLink, menu)
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})
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setTimeout(() => {
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item.style.height = `${linkHeight + Math.round(menu.getBoundingClientRect().height)}px`
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}, 50)
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} else {
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item.style.height = `${linkHeight + Math.round(menu.getBoundingClientRect().height)}px`
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item.classList.add('menu-item-animating')
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item.classList.add('menu-item-closing')
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Menu._bindAnimationEndEvent(item, () => {
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item.classList.remove('open')
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clearItemStyle()
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if (closeChildren) {
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const opened = item.querySelectorAll('.menu-item.open')
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for (let i = 0, l = opened.length; i < l; i++) opened[i].classList.remove('open')
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}
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this._onClosed(this, item, toggleLink, menu)
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})
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setTimeout(() => {
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item.style.height = `${linkHeight}px`
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}, 50)
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}
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}
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static _bindAnimationEndEvent(el, handler) {
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const cb = e => {
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if (e.target !== el) return
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Menu._unbindAnimationEndEvent(el)
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handler(e)
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}
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let duration = window.getComputedStyle(el).transitionDuration
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duration = parseFloat(duration) * (duration.indexOf('ms') !== -1 ? 1 : 1000)
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el._menuAnimationEndEventCb = cb
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TRANSITION_EVENTS.forEach(ev => el.addEventListener(ev, el._menuAnimationEndEventCb, false))
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el._menuAnimationEndEventTimeout = setTimeout(() => {
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cb({ target: el })
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}, duration + 50)
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}
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_getItemOffset(item) {
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let curItem = this._inner.childNodes[0]
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let left = 0
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while (curItem !== item) {
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if (curItem.tagName) {
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left += Math.round(curItem.getBoundingClientRect().width)
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}
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curItem = curItem.nextSibling
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}
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return left
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}
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static _promisify(fn, ...args) {
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const result = fn(...args)
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if (result instanceof Promise) {
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return result
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}
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if (result === false) {
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return Promise.reject()
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}
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return Promise.resolve()
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}
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get _innerWidth() {
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const items = this._inner.childNodes
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let width = 0
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for (let i = 0, l = items.length; i < l; i++) {
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if (items[i].tagName) {
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width += Math.round(items[i].getBoundingClientRect().width)
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}
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}
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return width
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}
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get _innerPosition() {
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return parseInt(this._inner.style[this._rtl ? 'marginRight' : 'marginLeft'] || '0px', 10)
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}
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set _innerPosition(value) {
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this._inner.style[this._rtl ? 'marginRight' : 'marginLeft'] = `${value}px`
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return value
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}
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static _unbindAnimationEndEvent(el) {
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const cb = el._menuAnimationEndEventCb
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if (el._menuAnimationEndEventTimeout) {
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clearTimeout(el._menuAnimationEndEventTimeout)
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el._menuAnimationEndEventTimeout = null
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}
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if (!cb) return
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TRANSITION_EVENTS.forEach(ev => el.removeEventListener(ev, cb, false))
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el._menuAnimationEndEventCb = null
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}
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closeAll(closeChildren = this._closeChildren) {
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const opened = this._el.querySelectorAll('.menu-inner > .menu-item.open')
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for (let i = 0, l = opened.length; i < l; i++) this.close(opened[i], closeChildren)
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}
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static setDisabled(el, disabled) {
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Menu._getItem(el, false).classList[disabled ? 'add' : 'remove']('disabled')
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}
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static isActive(el) {
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return Menu._getItem(el, false).classList.contains('active')
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}
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static isOpened(el) {
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return Menu._getItem(el, false).classList.contains('open')
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}
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static isDisabled(el) {
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return Menu._getItem(el, false).classList.contains('disabled')
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}
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update() {
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if (this._scrollbar) {
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this._scrollbar.update()
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}
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}
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manageScroll() {
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const { PerfectScrollbar } = window
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const menuInner = document.querySelector('.menu-inner')
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if (window.innerWidth < window.Helpers.LAYOUT_BREAKPOINT) {
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if (this._scrollbar !== null) {
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// window.Helpers.menuPsScroll.destroy()
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this._scrollbar.destroy()
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this._scrollbar = null
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}
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menuInner.classList.add('overflow-auto')
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} else {
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if (this._scrollbar === null) {
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const menuScroll = new PerfectScrollbar(document.querySelector('.menu-inner'), {
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suppressScrollX: true,
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wheelPropagation: false
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})
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this._scrollbar = menuScroll
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}
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menuInner.classList.remove('overflow-auto')
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}
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}
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destroy() {
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if (!this._el) return
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this._unbindEvents()
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const items = this._el.querySelectorAll('.menu-item')
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for (let i = 0, l = items.length; i < l; i++) {
|
|
Menu._unbindAnimationEndEvent(items[i])
|
|
items[i].classList.remove('menu-item-animating')
|
|
items[i].classList.remove('open')
|
|
items[i].style.overflow = null
|
|
items[i].style.height = null
|
|
}
|
|
|
|
const menus = this._el.querySelectorAll('.menu-menu')
|
|
for (let i2 = 0, l2 = menus.length; i2 < l2; i2++) {
|
|
menus[i2].style.marginRight = null
|
|
menus[i2].style.marginLeft = null
|
|
}
|
|
|
|
this._el.classList.remove('menu-no-animation')
|
|
|
|
if (this._wrapper) {
|
|
this._prevBtn.parentNode.removeChild(this._prevBtn)
|
|
this._nextBtn.parentNode.removeChild(this._nextBtn)
|
|
this._wrapper.parentNode.insertBefore(this._inner, this._wrapper)
|
|
this._wrapper.parentNode.removeChild(this._wrapper)
|
|
this._inner.style.marginLeft = null
|
|
this._inner.style.marginRight = null
|
|
}
|
|
|
|
this._el.menuInstance = null
|
|
delete this._el.menuInstance
|
|
|
|
this._el = null
|
|
this._animate = null
|
|
this._accordion = null
|
|
this._closeChildren = null
|
|
this._onOpen = null
|
|
this._onOpened = null
|
|
this._onClose = null
|
|
this._onClosed = null
|
|
if (this._scrollbar) {
|
|
this._scrollbar.destroy()
|
|
this._scrollbar = null
|
|
}
|
|
this._inner = null
|
|
this._prevBtn = null
|
|
this._wrapper = null
|
|
this._nextBtn = null
|
|
}
|
|
}
|
|
|
|
export { Menu }
|