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@@ -1,37 +1,9 @@
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import { useStateRef } from '@/Hooks/useStateRef'
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import { useEffect, useRef, useState } from 'react'
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import { Direction, Pan, PointerListener, type GestureEventData } from 'contactjs'
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import { MutuallyExclusiveMediaQueryBreakpoints, useMediaQuery } from '@/Hooks/useMediaQuery'
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import { useApplication } from '../ApplicationProvider'
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import { ApplicationEvent, PrefKey } from '@standardnotes/snjs'
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import { PrefDefaults } from '@/Constants/PrefDefaults'
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function getScrollParent(node: HTMLElement | null): HTMLElement | null {
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if (!node) {
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return null
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}
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if (node.scrollHeight > node.clientHeight || node.scrollWidth > node.clientWidth) {
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return node
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} else {
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return getScrollParent(node.parentElement)
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}
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}
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const supportsPassive = (() => {
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let supportsPassive = false
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try {
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const opts = Object.defineProperty({}, 'passive', {
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get: () => {
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supportsPassive = true
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},
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})
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window.addEventListener('test', null as never, opts)
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window.removeEventListener('test', null as never, opts)
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} catch (e) {
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/* empty */
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}
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return supportsPassive
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})()
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export const usePaneSwipeGesture = (
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direction: 'left' | 'right',
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@@ -40,18 +12,16 @@ export const usePaneSwipeGesture = (
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) => {
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const application = useApplication()
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const underlayElementRef = useRef<HTMLElement | null>(null)
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const overlayElementRef = useRef<HTMLElement | null>(null)
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const [element, setElement] = useState<HTMLElement | null>(null)
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const onSwipeEndRef = useStateRef(onSwipeEnd)
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const isMobileScreen = useMediaQuery(MutuallyExclusiveMediaQueryBreakpoints.sm)
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const [isEnabled, setIsEnabled] = useState(() =>
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application.getPreference(PrefKey.PaneGesturesEnabled, PrefDefaults[PrefKey.PaneGesturesEnabled]),
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)
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const [isEnabled, setIsEnabled] = useState(() => application.getPreference(PrefKey.PaneGesturesEnabled, false))
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useEffect(() => {
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return application.addSingleEventObserver(ApplicationEvent.PreferencesChanged, async () => {
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setIsEnabled(application.getPreference(PrefKey.PaneGesturesEnabled, PrefDefaults[PrefKey.PaneGesturesEnabled]))
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setIsEnabled(application.getPreference(PrefKey.PaneGesturesEnabled, false))
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})
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}, [application])
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@@ -68,159 +38,126 @@ export const usePaneSwipeGesture = (
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return
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}
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underlayElementRef.current = element.parentElement?.querySelector(`[data-pane-underlay="${element.id}"]`) || null
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const panRecognizer = new Pan(element, {
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supportedDirections: direction === 'left' ? [Direction.Left] : [Direction.Right],
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})
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let startX = 0
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let clientX = 0
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let closestScrollContainer: HTMLElement | null
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let scrollContainerAxis: 'x' | 'y' | null = null
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let canceled = false
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const pointerListener = new PointerListener(element, {
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supportedGestures: [panRecognizer],
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})
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const TouchMoveThreshold = 15
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const SwipeFinishThreshold = 40 + TouchMoveThreshold
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function onPan(e: unknown) {
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const event = e as CustomEvent<GestureEventData>
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if (!element) {
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return
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}
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const scrollListener = () => {
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canceled = true
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const x = event.detail.global.deltaX
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requestElementUpdate(x)
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}
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const touchStartListener = (event: TouchEvent) => {
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closestScrollContainer = getScrollParent(event.target as HTMLElement)
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if (closestScrollContainer) {
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closestScrollContainer.addEventListener('scroll', scrollListener)
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let ticking = false
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if (closestScrollContainer.scrollWidth > closestScrollContainer.clientWidth) {
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scrollContainerAxis = 'x'
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function onPanEnd(e: unknown) {
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const event = e as CustomEvent<GestureEventData>
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if (ticking) {
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setTimeout(function () {
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onPanEnd(event)
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}, 100)
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} else {
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if (!element) {
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return
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}
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} else {
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scrollContainerAxis = null
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}
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const touch = event.touches[0]
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startX = touch.clientX
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if (direction === 'right' && event.detail.global.deltaX > 40) {
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onSwipeEndRef.current(element)
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} else if (direction === 'left' && event.detail.global.deltaX < -40) {
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onSwipeEndRef.current(element)
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} else {
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requestElementUpdate(0)
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}
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canceled = false
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element.style.willChange = 'transform'
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}
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const updateElement = (x: number) => {
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if (!underlayElementRef.current) {
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const underlayElement = document.createElement('div')
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underlayElement.style.position = 'fixed'
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underlayElement.style.top = '0'
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underlayElement.style.left = '0'
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underlayElement.style.width = '100%'
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underlayElement.style.height = '100%'
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underlayElement.style.pointerEvents = 'none'
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underlayElement.style.backgroundColor = '#000'
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underlayElement.style.opacity = '0'
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underlayElement.style.willChange = 'opacity'
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underlayElement.setAttribute('role', 'presentation')
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underlayElement.ariaHidden = 'true'
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underlayElement.setAttribute('data-pane-underlay', element.id)
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element.before(underlayElement)
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underlayElementRef.current = underlayElement
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}
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element.animate(
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[
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{
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transform: `translate3d(${x}px, 0, 0)`,
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},
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],
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{
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duration: 0,
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fill: 'forwards',
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},
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)
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const percent = Math.min(window.innerWidth / x / 10, 0.45)
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underlayElementRef.current.animate([{ opacity: percent }], {
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duration: 0,
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fill: 'forwards',
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})
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}
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const touchMoveListener = (event: TouchEvent) => {
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if (scrollContainerAxis === 'x') {
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return
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}
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if (canceled) {
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return
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}
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const touch = event.touches[0]
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clientX = touch.clientX
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const deltaX = clientX - startX
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if (Math.abs(deltaX) < TouchMoveThreshold) {
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return
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}
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if (closestScrollContainer) {
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closestScrollContainer.style.touchAction = 'none'
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}
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const x =
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direction === 'right' ? Math.max(deltaX - TouchMoveThreshold, 0) : Math.min(deltaX + TouchMoveThreshold, 0)
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if (gesture === 'pan') {
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updateElement(x)
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if (overlayElementRef.current) {
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overlayElementRef.current
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.animate([{ opacity: 0 }], {
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duration: 5,
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fill: 'forwards',
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})
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.finished.then(() => {
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if (overlayElementRef.current) {
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overlayElementRef.current.remove()
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overlayElementRef.current = null
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}
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})
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.catch(console.error)
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}
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}
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}
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const touchEndListener = () => {
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if (closestScrollContainer) {
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closestScrollContainer.removeEventListener('scroll', scrollListener)
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closestScrollContainer.style.touchAction = ''
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}
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function requestElementUpdate(x: number) {
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if (!ticking) {
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requestAnimationFrame(function () {
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if (!element) {
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return
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}
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if (canceled) {
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updateElement(0)
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return
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}
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if (!overlayElementRef.current) {
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const overlayElement = document.createElement('div')
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overlayElement.style.position = 'fixed'
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overlayElement.style.top = '0'
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overlayElement.style.left = '0'
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overlayElement.style.width = '100%'
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overlayElement.style.height = '100%'
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overlayElement.style.pointerEvents = 'none'
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overlayElement.style.backgroundColor = '#000'
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overlayElement.style.opacity = '0'
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overlayElement.style.willChange = 'opacity'
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const deltaX = clientX - startX
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element.before(overlayElement)
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overlayElementRef.current = overlayElement
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}
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element.style.willChange = ''
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const newLeft = direction === 'right' ? Math.max(x, 0) : Math.min(x, 0)
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element.animate([{ transform: `translate3d(${newLeft}px,0,0)` }], { duration: 0, fill: 'forwards' })
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if (
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(direction === 'right' && deltaX > SwipeFinishThreshold) ||
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(direction === 'left' && deltaX < -SwipeFinishThreshold)
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) {
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onSwipeEndRef.current(element)
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} else {
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updateElement(0)
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}
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if (underlayElementRef.current) {
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underlayElementRef.current
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.animate([{ opacity: 0 }], {
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easing: 'cubic-bezier(.36,.66,.04,1)',
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duration: 500,
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const percent = Math.min(window.innerWidth / newLeft / 10, 0.45)
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overlayElementRef.current.animate([{ opacity: percent }], {
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duration: 0,
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fill: 'forwards',
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})
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.finished.then(() => {
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if (underlayElementRef.current) {
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underlayElementRef.current.remove()
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underlayElementRef.current = null
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}
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})
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.catch(console.error)
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ticking = false
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})
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ticking = true
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}
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}
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element.addEventListener('touchstart', touchStartListener, supportsPassive ? { passive: true } : false)
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element.addEventListener('touchmove', touchMoveListener, supportsPassive ? { passive: true } : false)
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element.addEventListener('touchend', touchEndListener, supportsPassive ? { passive: true } : false)
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if (gesture === 'pan') {
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element.addEventListener('panleft', onPan)
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element.addEventListener('panright', onPan)
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element.addEventListener('panend', onPanEnd)
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} else {
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if (direction === 'left') {
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element.addEventListener('swipeleft', onPanEnd)
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} else {
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element.addEventListener('swiperight', onPanEnd)
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}
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}
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return () => {
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element.removeEventListener('touchstart', touchStartListener)
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element.removeEventListener('touchmove', touchMoveListener)
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element.removeEventListener('touchend', touchEndListener)
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pointerListener.destroy()
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if (gesture === 'pan') {
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element.removeEventListener('panleft', onPan)
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element.removeEventListener('panright', onPan)
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element.removeEventListener('panend', onPanEnd)
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} else {
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if (direction === 'left') {
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element.removeEventListener('swipeleft', onPanEnd)
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} else {
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element.removeEventListener('swiperight', onPanEnd)
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}
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}
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}
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}, [direction, element, gesture, isMobileScreen, onSwipeEndRef, isEnabled])
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