gruene-seele/resources/assets/vendor/js/sidenav.js
2021-01-08 17:48:20 +01:00

789 lines
24 KiB
JavaScript

const TRANSITION_EVENTS = ['transitionend','webkitTransitionEnd','oTransitionEnd']
const TRANSITION_PROPERTIES = ['transition', 'MozTransition', 'webkitTransition', 'WebkitTransition', 'OTransition']
const DELTA = 5
class SideNav {
constructor(el, options = {}, _PS = null) {
this._el = el
this._horizontal = options.orientation === 'horizontal'
this._animate = options.animate !== false && this._supportsTransitionEnd()
this._accordion = options.accordion !== false
this._closeChildren = Boolean(options.closeChildren)
this._showDropdownOnHover = Boolean(options.showDropdownOnHover)
this._rtl = document.documentElement.getAttribute('dir') === 'rtl' || document.body.getAttribute('dir') === 'rtl'
this._lastWidth = this._horizontal ? window.innerWidth : null
this._onOpen = options.onOpen || (() => {})
this._onOpened = options.onOpened || (() => {})
this._onClose = options.onClose || (() => {})
this._onClosed = options.onClosed || (() => {})
el.classList.add('sidenav')
el.classList[this._animate ? 'remove' : 'add']('sidenav-no-animation')
if (!this._horizontal) {
el.classList.add('sidenav-vertical')
el.classList.remove('sidenav-horizontal')
const PerfectScrollbarLib = _PS || window.PerfectScrollbar
if (PerfectScrollbarLib) {
this._scrollbar = new PerfectScrollbarLib(
el.querySelector('.sidenav-inner'),
{
suppressScrollX: true,
wheelPropagation: true
}
)
}
} else {
el.classList.add('sidenav-horizontal')
el.classList.remove('sidenav-vertical')
this._inner = el.querySelector('.sidenav-inner')
const container = this._inner.parentNode
this._prevBtn = el.querySelector('.sidenav-horizontal-prev')
if (!this._prevBtn) {
this._prevBtn = document.createElement('a')
this._prevBtn.href = '#'
this._prevBtn.className = 'sidenav-horizontal-prev'
container.appendChild(this._prevBtn)
}
this._wrapper = el.querySelector('.sidenav-horizontal-wrapper')
if (!this._wrapper) {
this._wrapper = document.createElement('div')
this._wrapper.className = 'sidenav-horizontal-wrapper'
this._wrapper.appendChild(this._inner)
container.appendChild(this._wrapper)
}
this._nextBtn = el.querySelector('.sidenav-horizontal-next')
if (!this._nextBtn) {
this._nextBtn = document.createElement('a')
this._nextBtn.href = '#'
this._nextBtn.className = 'sidenav-horizontal-next'
container.appendChild(this._nextBtn)
}
this._innerPosition = 0
this.update()
}
this._bindEvents()
// Link sidenav instance to element
el.sidenavInstance = this
}
open(el, closeChildren=this._closeChildren) {
const item = this._findUnopenedParent(this._getItem(el, true), closeChildren)
if (!item) return
const toggleLink = this._getLink(item, true)
this._promisify(this._onOpen, this, item, toggleLink, this._findMenu(item))
.then(() => {
if (!this._horizontal || !this._isRoot(item)) {
if (this._animate) {
window.requestAnimationFrame(() => this._toggleAnimation(true, item, false))
if (this._accordion) this._closeOther(item, closeChildren)
} else {
item.classList.add('open')
this._onOpened && this._onOpened(this, item, toggleLink, this._findMenu(item))
if (this._accordion) this._closeOther(item, closeChildren)
}
} else {
this._toggleDropdown(true, item, closeChildren)
this._onOpened && this._onOpened(this, item, toggleLink, this._findMenu(item))
}
})
.catch(() => {})
}
close(el, closeChildren=this._closeChildren, _autoClose=false) {
const item = this._getItem(el, true)
const toggleLink = this._getLink(el, true)
if (!item.classList.contains('open') || item.classList.contains('disabled')) return
this._promisify(this._onClose, this, item, toggleLink, this._findMenu(item), _autoClose)
.then(() => {
if (!this._horizontal || !this._isRoot(item)) {
if (this._animate) {
window.requestAnimationFrame(() => this._toggleAnimation(false, item, closeChildren))
} else {
item.classList.remove('open')
if (closeChildren) {
const opened = item.querySelectorAll('.sidenav-item.open')
for (let i = 0, l = opened.length; i < l; i++) opened[i].classList.remove('open')
}
this._onClosed && this._onClosed(this, item, toggleLink, this._findMenu(item))
}
} else {
this._toggleDropdown(false, item, closeChildren)
this._onClosed && this._onClosed(this, item, toggleLink, this._findMenu(item))
}
})
.catch(() => {})
}
toggle(el, closeChildren=this._closeChildren) {
const item = this._getItem(el, true)
if (item.classList.contains('open')) this.close(item, closeChildren)
else this.open(item, closeChildren)
}
closeAll(closeChildren=this._closeChildren) {
const opened = this._el.querySelectorAll('.sidenav-inner > .sidenav-item.open')
for (let i = 0, l = opened.length; i < l; i++) this.close(opened[i], closeChildren)
}
setActive(el, active, openTree=true, deactivateOthers=true) {
let item = this._getItem(el, false)
if (active && deactivateOthers) {
const activeItems = this._el.querySelectorAll('.sidenav-inner .sidenav-item.active')
for (let i = 0, l = activeItems.length; i < l; i++) activeItems[i].classList.remove('active')
}
if (active && openTree) {
const parentItem = this._findParent(item, 'sidenav-item', false)
parentItem && this.open(parentItem)
}
while (item) {
item.classList[active ? 'add' : 'remove']('active')
item = this._findParent(item, 'sidenav-item', false)
}
}
setDisabled(el, disabled) {
this._getItem(el, false).classList[disabled ? 'add' : 'remove']('disabled')
}
isActive(el) {
return this._getItem(el, false).classList.contains('active')
}
isOpened(el) {
return this._getItem(el, false).classList.contains('open')
}
isDisabled(el) {
return this._getItem(el, false).classList.contains('disabled')
}
update() {
if (!this._horizontal) {
if (this._scrollbar) {
this._scrollbar.update()
}
} else {
this.closeAll()
const wrapperWidth = Math.round(this._wrapper.getBoundingClientRect().width)
const innerWidth = this._innerWidth
let position = this._innerPosition
if ((wrapperWidth - position) > innerWidth) {
position = wrapperWidth - innerWidth
if (position > 0) position = 0
this._innerPosition = position
}
this._updateSlider(wrapperWidth, innerWidth, position)
}
}
_updateSlider(wrapperWidth = null, innerWidth = null, position = null) {
const _wrapperWidth = wrapperWidth !== null ? wrapperWidth : Math.round(this._wrapper.getBoundingClientRect().width)
const _innerWidth = innerWidth !== null ? innerWidth : this._innerWidth
const _position = position !== null ? position : this._innerPosition
if (_position === 0) this._prevBtn.classList.add('disabled')
else this._prevBtn.classList.remove('disabled')
if (_innerWidth + _position <= _wrapperWidth) this._nextBtn.classList.add('disabled')
else this._nextBtn.classList.remove('disabled')
}
_promisify(fn, ...args) {
const result = fn(...args)
return result instanceof Promise
? result
: (result === false ? Promise.reject() : Promise.resolve())
}
destroy() {
if (!this._el) return
this._unbindEvents()
const items = this._el.querySelectorAll('.sidenav-item')
for (let i = 0, l = items.length; i < l; i++) {
this._unbindAnimationEndEvent(items[i])
items[i].classList.remove('sidenav-item-animating')
items[i].classList.remove('open')
items[i].style.overflow = null
items[i].style.height = null
}
const menus = this._el.querySelectorAll('.sidenav-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('sidenav-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.sidenavInstance = null
delete this._el.sidenavInstance
this._el = null
this._horizontal = null
this._animate = null
this._accordion = null
this._closeChildren = null
this._showDropdownOnHover = null
this._rtl = 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
}
_getLink(el, toggle) {
let found = []
const selector = toggle ? 'sidenav-toggle' : 'sidenav-link'
if (el.classList.contains(selector)) found = [el]
else if (el.classList.contains('sidenav-item')) found = this._findChild(el, [selector])
if (!found.length) throw new Error(`\`${selector}\` element not found.`)
return found[0]
}
_getItem(el, toggle) {
let item = null
const selector = toggle ? 'sidenav-toggle' : 'sidenav-link'
if (el.classList.contains('sidenav-item')) {
if (this._findChild(el, [selector]).length) item = el
} else if (el.classList.contains(selector)) {
item = el.parentNode.classList.contains('sidenav-item') ? el.parentNode : null
}
if (!item) {
throw new Error(`${toggle ? 'Toggable ' : ''}\`.sidenav-item\` element not found.`)
}
return item
}
_findUnopenedParent(item, closeChildren) {
let tree = []
let parentItem = null
while (item) {
if (item.classList.contains('disabled')) {
parentItem = null
tree = []
} else {
if (!item.classList.contains('open')) parentItem = item
tree.push(item)
}
item = this._findParent(item, 'sidenav-item', false)
}
if (!parentItem) return null
if (tree.length === 1) return parentItem
tree = tree.slice(0, tree.indexOf(parentItem))
for (let i = 0, l = tree.length; i < l; i++) {
tree[i].classList.add('open')
if (this._accordion) {
let openedItems = this._findChild(tree[i].parentNode, ['sidenav-item', 'open'])
for (let j = 0, k = openedItems.length; j < k; j++) {
if (openedItems[j] === tree[i]) continue
openedItems[j].classList.remove('open')
if (closeChildren) {
let openedChildren = openedItems[j].querySelectorAll('.sidenav-item.open')
for (let x = 0, z = openedChildren.length; x < z; x++) {
openedChildren[x].classList.remove('open')
}
}
}
}
}
return parentItem
}
_closeOther(item, closeChildren) {
const opened = this._findChild(item.parentNode, ['sidenav-item', 'open'])
for (let i = 0, l = opened.length; i < l; i++) {
if (opened[i] !== item) this.close(opened[i], closeChildren, true)
}
}
_toggleAnimation(open, item, closeChildren) {
const toggleLink = this._getLink(item, true)
const menu = this._findMenu(item)
this._unbindAnimationEndEvent(item)
const linkHeight = Math.round(toggleLink.getBoundingClientRect().height)
item.style.overflow = 'hidden'
const clearItemStyle = () => {
item.classList.remove('sidenav-item-animating')
item.classList.remove('sidenav-item-closing')
item.style.overflow = null
item.style.height = null
if (!this._horizontal) this.update()
}
if (open) {
item.style.height = `${linkHeight}px`
item.classList.add('sidenav-item-animating')
item.classList.add('open')
this._bindAnimationEndEvent(item, () => {
clearItemStyle()
this._onOpened && this._onOpened(this, item, toggleLink, menu)
})
setTimeout(() => item.style.height = `${linkHeight + Math.round(menu.getBoundingClientRect().height)}px`, 50)
} else {
item.style.height = `${linkHeight + Math.round(menu.getBoundingClientRect().height)}px`
item.classList.add('sidenav-item-animating')
item.classList.add('sidenav-item-closing')
this._bindAnimationEndEvent(item, () => {
item.classList.remove('open')
clearItemStyle()
if (closeChildren) {
const opened = item.querySelectorAll('.sidenav-item.open')
for (let i = 0, l = opened.length; i < l; i++) opened[i].classList.remove('open')
}
this._onClosed && this._onClosed(this, item, toggleLink, menu)
})
setTimeout(() => item.style.height = `${linkHeight}px`, 50)
}
}
_toggleDropdown(show, item, closeChildren) {
const menu = this._findMenu(item)
if (show) {
const wrapperWidth = Math.round(this._wrapper.getBoundingClientRect().width)
const position = this._innerPosition
const itemOffset = this._getItemOffset(item)
const itemWidth = Math.round(item.getBoundingClientRect().width)
if ((itemOffset - DELTA) <= (-1 * position)) {
this._innerPosition = -1 * itemOffset
} else if ((itemOffset + position + itemWidth + DELTA) >= wrapperWidth) {
if (itemWidth > wrapperWidth) {
this._innerPosition = -1 * itemOffset
} else {
this._innerPosition = -1 * (itemOffset + itemWidth - wrapperWidth)
}
}
item.classList.add('open')
const menuWidth = Math.round(menu.getBoundingClientRect().width)
if ((itemOffset + this._innerPosition + menuWidth) > wrapperWidth && menuWidth < wrapperWidth && menuWidth > itemWidth) {
menu.style[this._rtl ? 'marginRight' : 'marginLeft'] = `-${menuWidth - itemWidth}px`
}
this._closeOther(item, closeChildren)
this._updateSlider()
} else {
const toggle = this._findChild(item, ['sidenav-toggle'])
toggle.length && toggle[0].removeAttribute('data-hover', 'true')
item.classList.remove('open')
menu.style[this._rtl ? 'marginRight' : 'marginLeft'] = null
if (closeChildren) {
const opened = menu.querySelectorAll('.sidenav-item.open')
for (let i = 0, l = opened.length; i < l; i++) opened[i].classList.remove('open')
}
}
}
_slide(direction) {
const wrapperWidth = Math.round(this._wrapper.getBoundingClientRect().width)
const innerWidth = this._innerWidth
let newPosition
if (direction === 'next') {
newPosition = this._getSlideNextPos()
if (innerWidth + newPosition < wrapperWidth) {
newPosition = wrapperWidth - innerWidth
}
} else {
newPosition = this._getSlidePrevPos()
if (newPosition > 0) newPosition = 0
}
this._innerPosition = newPosition
this.update()
}
_getSlideNextPos() {
const wrapperWidth = Math.round(this._wrapper.getBoundingClientRect().width)
const position = this._innerPosition
let curItem = this._inner.childNodes[0]
let left = 0
while(curItem) {
if (curItem.tagName) {
let curItemWidth = Math.round(curItem.getBoundingClientRect().width)
if ((left + position - DELTA) <= wrapperWidth && (left + position + curItemWidth + DELTA) >= wrapperWidth) {
if (curItemWidth > wrapperWidth && left === (-1 * position)) left += curItemWidth
break
}
left += curItemWidth
}
curItem = curItem.nextSibling
}
return -1 * left
}
_getSlidePrevPos() {
const wrapperWidth = Math.round(this._wrapper.getBoundingClientRect().width)
const position = this._innerPosition
let curItem = this._inner.childNodes[0]
let left = 0
while(curItem) {
if (curItem.tagName) {
let curItemWidth = Math.round(curItem.getBoundingClientRect().width)
if ((left - DELTA) <= (-1 * position) && (left + curItemWidth + DELTA) >= (-1 * position)) {
if (curItemWidth <= wrapperWidth) left = left + curItemWidth - wrapperWidth
break
}
left += curItemWidth
}
curItem = curItem.nextSibling
}
return -1 * left
}
_getItemOffset(item) {
let curItem = this._inner.childNodes[0]
let left = 0
while(curItem !== item) {
if (curItem.tagName) {
left += Math.round(curItem.getBoundingClientRect().width)
}
curItem = curItem.nextSibling
}
return left
}
_bindAnimationEndEvent(el, handler) {
const cb = e => {
if (e.target !== el) return
this._unbindAnimationEndEvent(el)
handler(e)
}
let duration = window.getComputedStyle(el).transitionDuration
duration = parseFloat(duration) * (duration.indexOf('ms') !== -1 ? 1 : 1000)
el._sideNavAnimationEndEventCb = cb
TRANSITION_EVENTS.forEach(ev => el.addEventListener(ev, el._sideNavAnimationEndEventCb, false))
el._sideNavAnimationEndEventTimeout = setTimeout(function() {
cb({ target: el })
}, duration + 50)
}
_unbindAnimationEndEvent(el) {
const cb = el._sideNavAnimationEndEventCb
if (el._sideNavAnimationEndEventTimeout) {
clearTimeout(el._sideNavAnimationEndEventTimeout)
el._sideNavAnimationEndEventTimeout = null
}
if (!cb) return
TRANSITION_EVENTS.forEach(ev => el.removeEventListener(ev, cb, false))
el._sideNavAnimationEndEventCb = null
}
_bindEvents() {
this._evntElClick = (e) => {
const toggleLink = e.target.classList.contains('sidenav-toggle') ?
e.target :
this._findParent(e.target, 'sidenav-toggle', false)
if (toggleLink) {
e.preventDefault()
if (toggleLink.getAttribute('data-hover') !== 'true') {
this.toggle(toggleLink)
}
}
}
this._el.addEventListener('click', this._evntElClick)
this._evntWindowResize = () => {
if (!this._horizontal) {
this.update()
} else if (this._lastWidth !== window.innerWidth) {
this._lastWidth = window.innerWidth
this.update()
}
}
window.addEventListener('resize', this._evntWindowResize)
if (this._horizontal) {
this._evntPrevBtnClick = (e) => {
e.preventDefault()
if (this._prevBtn.classList.contains('disabled')) return
this._slide('prev')
}
this._prevBtn.addEventListener('click', this._evntPrevBtnClick)
this._evntNextBtnClick = (e) => {
e.preventDefault()
if (this._nextBtn.classList.contains('disabled')) return
this._slide('next')
}
this._nextBtn.addEventListener('click', this._evntNextBtnClick)
this._evntBodyClick = (e) => {
if (!this._inner.contains(e.target) && this._el.querySelectorAll('.sidenav-inner > .sidenav-item.open').length) this.closeAll()
}
document.body.addEventListener('click', this._evntBodyClick)
this._evntHorizontalElClick = (e) => {
const link = e.target.classList.contains('sidenav-link') ? e.target : this._findParent(e.target, 'sidenav-link', false)
if (link && !link.classList.contains('sidenav-toggle')) this.closeAll()
}
this._el.addEventListener('click', this._evntHorizontalElClick)
if (this._showDropdownOnHover) {
this._evntInnerMousemove = (e) => {
let curItem = this._findParent(e.target, 'sidenav-item', false)
let item = null
while (curItem) {
item = curItem
curItem = this._findParent(curItem, 'sidenav-item', false)
}
if (item && !item.classList.contains('open')) {
const toggle = this._findChild(item, ['sidenav-toggle'])
if (toggle.length) {
toggle[0].setAttribute('data-hover', 'true')
this.open(toggle[0], this._closeChildren, true)
setTimeout(() => {
toggle[0].removeAttribute('data-hover')
}, 500)
}
}
}
this._inner.addEventListener('mousemove', this._evntInnerMousemove)
this._evntInnerMouseleave = (e) => {
this.closeAll()
}
this._inner.addEventListener('mouseleave', this._evntInnerMouseleave)
}
}
}
_unbindEvents() {
if (this._evntElClick) {
this._el.removeEventListener('click', this._evntElClick)
this._evntElClick = null
}
if (this._evntWindowResize) {
window.removeEventListener('resize', this._evntWindowResize)
this._evntWindowResize = null
}
if (this._evntPrevBtnClick) {
this._prevBtn.removeEventListener('click', this._evntPrevBtnClick)
this._evntPrevBtnClick = null
}
if (this._evntNextBtnClick) {
this._nextBtn.removeEventListener('click', this._evntNextBtnClick)
this._evntNextBtnClick = null
}
if (this._evntBodyClick) {
document.body.removeEventListener('click', this._evntBodyClick)
this._evntBodyClick = null
}
if (this._evntHorizontalElClick) {
this._el.removeEventListener('click', this._evntHorizontalElClick)
this._evntHorizontalElClick = null
}
if (this._evntInnerMousemove) {
this._inner.removeEventListener('mousemove', this._evntInnerMousemove)
this._evntInnerMousemove = null
}
if (this._evntInnerMouseleave) {
this._inner.removeEventListener('mouseleave', this._evntInnerMouseleave)
this._evntInnerMouseleave = null
}
}
_findMenu(item) {
let curEl = item.childNodes[0]
let menu = null
while (curEl && !menu) {
if (curEl.classList && curEl.classList.contains('sidenav-menu')) menu = curEl
curEl = curEl.nextSibling
}
if (!menu) throw new Error('Cannot find `.sidenav-menu` element for the current `.sidenav-toggle`')
return menu
}
_isRoot(item) {
return !this._findParent(item, 'sidenav-item', false)
}
_findParent(el, cls, throwError = true) {
if (el.tagName.toUpperCase() === 'BODY') return null
el = el.parentNode
while (el && el.tagName.toUpperCase() !== 'BODY' && !el.classList.contains(cls)) {
el = el.parentNode
}
el = el && el.tagName.toUpperCase() !== 'BODY' ? el : null
if (!el && throwError) throw new Error(`Cannot find \`.${cls}\` parent element`)
return el
}
_findChild(el, cls) {
const items = el.childNodes
const found = []
for (let i = 0, l = items.length; i < l; i++) {
if (items[i].classList) {
let passed = 0
for (let j = 0; j < cls.length; j++) {
if (items[i].classList.contains(cls[j])) passed++
}
if (cls.length === passed) found.push(items[i])
}
}
return found
}
_supportsTransitionEnd() {
if (window.QUnit) {
return false
}
const el = document.body || document.documentElement
let result = false
TRANSITION_PROPERTIES.forEach(evnt => {
if (typeof el.style[evnt] !== 'undefined') result = true
})
return result
}
get _innerWidth() {
const items = this._inner.childNodes
let width = 0
for (let i = 0, l = items.length; i < l; i++) {
if (items[i].tagName) {
width += Math.round(items[i].getBoundingClientRect().width)
}
}
return width
}
get _innerPosition() {
return parseInt(this._inner.style[this._rtl ? 'marginRight' : 'marginLeft'] || '0px')
}
set _innerPosition(value) {
this._inner.style[this._rtl ? 'marginRight' : 'marginLeft'] = `${value}px`
return value
}
}
export { SideNav }