platform/packages/ui/src/components/Scroller.svelte
Alexander Platov 79f2ad8e2d
Fixed navigators and aSide behavior when the document size is small. (#7613)
Signed-off-by: Alexander Platov <alexander.platov@hardcoreeng.com>
2025-01-09 15:24:11 +07:00

1062 lines
32 KiB
Svelte

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// Copyright © 2020 Anticrm Platform Contributors.
//
// Licensed under the Eclipse Public License, Version 2.0 (the "License");
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// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
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<script lang="ts">
import { themeStore as themeOptions } from '@hcengineering/theme'
import { afterUpdate, beforeUpdate, createEventDispatcher, onDestroy, onMount } from 'svelte'
import { resizeObserver } from '../resize'
import { closeTooltip, tooltipstore } from '../tooltips'
import type { FadeOptions, ScrollParams } from '../types'
import { defaultSP } from '../types'
import { DelayedCaller } from '../utils'
import IconDownOutline from './icons/DownOutline.svelte'
import HalfUpDown from './icons/HalfUpDown.svelte'
import IconUpOutline from './icons/UpOutline.svelte'
export let padding: string | undefined = undefined
export let bottomPadding: string | undefined = undefined
export let autoscroll: boolean = false
export let bottomStart: boolean = false
export let fade: FadeOptions = defaultSP
export let noFade: boolean = true
export let invertScroll: boolean = false
export let scrollDirection: 'vertical' | 'vertical-reverse' = 'vertical'
export let contentDirection: 'vertical' | 'vertical-reverse' | 'horizontal' = 'vertical'
export let horizontal: boolean = contentDirection === 'horizontal'
export let align: 'start' | 'center' | 'end' | 'stretch' = 'stretch'
export let gap: string | undefined = undefined
export let noStretch: boolean = autoscroll
export let buttons: 'normal' | 'union' | false = false
export let shrink: boolean = false
export let divScroll: HTMLElement | undefined | null = undefined
export let divBox: HTMLElement | undefined | null = undefined
export let scrollSnap: boolean = false
export let checkForHeaders: boolean = false
export let stickedScrollBars: boolean = false
export let thinScrollBars: boolean = false
export let disableOverscroll = false
export let disablePointerEventsOnScroll = false
export let onScroll: ((params: ScrollParams) => void) | undefined = undefined
export let onResize: (() => void) | undefined = undefined
export let containerName: string | undefined = undefined
export let containerType: 'size' | 'inline-size' | undefined = containerName !== undefined ? 'inline-size' : undefined
export let maxHeight: number | undefined = undefined
export function scroll (top: number, left?: number, behavior: 'auto' | 'smooth' = 'auto') {
if (divScroll) {
if (top !== 0) divScroll.scroll({ top, left: 0, behavior })
if (left !== 0 && left !== undefined) divScroll.scroll({ top: 0, left, behavior })
}
}
export function scrollBy (top: number, left?: number, behavior: 'auto' | 'smooth' = 'auto') {
if (divScroll) {
if (top !== 0) divScroll.scrollBy({ top, left: 0, behavior })
if (left !== 0 || left !== undefined) divScroll.scrollBy({ top: 0, left, behavior })
}
}
const dispatch = createEventDispatcher()
const stepScroll = 52
let mask: 'top' | 'bottom' | 'both' | 'none' = 'none'
let topCrop: 'top' | 'bottom' | 'full' | 'none' = 'none'
let topCropValue: number = 0
let maskH: 'left' | 'right' | 'both' | 'none' = 'none'
let divHScroll: HTMLElement
let divBar: HTMLElement
let divBarH: HTMLElement
let isScrollingByBar: 'vertical' | 'horizontal' | false = false
let isScrolling: boolean = false
let scrollTimer: any = 0
let dXY: number
let belowContent: number | undefined = undefined
let beforeContent: number | undefined = undefined
let leftContent: number | undefined = undefined
let rightContent: number | undefined = undefined
$: scrolling = autoscroll
let firstScroll = autoscroll
let orientir: 'vertical' | 'horizontal' = 'vertical'
let timer: any | undefined = undefined
let timerH: any | undefined = undefined
const inter = new Set<Element>()
let hasLastCategories: boolean = false
$: fz = $themeOptions.fontSize
$: shiftTop = fade.multipler?.top ? fade.multipler?.top * fz : 0
$: shiftBottom = fade.multipler?.bottom ? fade.multipler?.bottom * fz : 0
$: shiftLeft = fade.multipler?.left ? fade.multipler?.left * fz : 0
$: shiftRight = fade.multipler?.right ? fade.multipler?.right * fz : 0
$: orientir = contentDirection === 'horizontal' ? 'horizontal' : 'vertical'
const checkBar = (): void => {
if (divBar && divScroll) {
dispatch('divScrollTop', divScroll.scrollTop)
const trackH = divScroll.clientHeight - shiftTop - shiftBottom - 4
const scrollH = divScroll.scrollHeight
const proc = scrollH / trackH
const newHeight = (divScroll.clientHeight - 4) / proc
const newHeightPx = newHeight + 'px'
if (divBar.style.height !== 'newHeight') {
divBar.style.height = newHeightPx
}
let newTop = '0px'
if (scrollDirection === 'vertical-reverse') {
newTop = divScroll.clientHeight + divScroll.scrollTop / proc - newHeight - shiftTop - 2 + 'px'
} else {
newTop = divScroll.scrollTop / proc + shiftTop + 2 + 'px'
}
if (divBar.style.top !== newTop) {
divBar.style.top = newTop
}
if (mask === 'none') {
if (divBar.style.visibility !== 'hidden') {
divBar.style.visibility = 'hidden'
}
} else {
if (divBar.style.visibility !== 'visible') {
divBar.style.visibility = 'visible'
}
if (divBar) {
if (timer) {
clearTimeout(timer)
timer = undefined
if (divBar.style.opacity !== '1') {
divBar.style.opacity = '1'
}
}
timer = setTimeout(() => {
if (divBar) {
divBar.style.opacity = '0'
}
}, 1500)
}
}
if (divScroll.clientHeight >= divScroll.scrollHeight) {
if (divBar.style.visibility !== 'hidden') {
divBar.style.visibility = 'hidden'
}
}
}
}
const checkBarH = (): void => {
if (divBarH && divScroll) {
const trackW = divScroll.clientWidth - (mask !== 'none' ? 14 : 4) - shiftLeft - shiftRight
const scrollW = divScroll.scrollWidth
const proc = scrollW / trackW
divBarH.style.width = divScroll.clientWidth / proc + 'px'
divBarH.style.left = divScroll.scrollLeft / proc + 2 + shiftLeft + 'px'
if (maskH === 'none') divBarH.style.visibility = 'hidden'
else {
divBarH.style.visibility = 'visible'
if (divBarH) {
if (timerH) {
clearTimeout(timerH)
timerH = undefined
divBarH.style.opacity = '1'
}
timerH = setTimeout(() => {
if (divBarH) divBarH.style.opacity = '0'
}, 1500)
}
}
if (divScroll.clientWidth >= divScroll.scrollWidth) divBarH.style.visibility = 'hidden'
}
}
const handleScroll = (event: PointerEvent): void => {
scrolling = false
if (
(divBar == null && isScrollingByBar === 'vertical') ||
(divBarH == null && isScrollingByBar === 'horizontal') ||
divScroll == null
) {
return
}
const rectScroll = divScroll.getBoundingClientRect()
if (isScrollingByBar === 'vertical') {
let Y = Math.round(event.clientY) - dXY
if (Y < rectScroll.top + shiftTop + 2) Y = rectScroll.top + shiftTop + 2
if (Y > rectScroll.bottom - divBar.clientHeight - shiftBottom - 2) {
Y = rectScroll.bottom - divBar.clientHeight - shiftBottom - 2
}
divBar.style.top = Y - rectScroll.y + 'px'
const topBar = Y - rectScroll.y - shiftTop - 2
const heightScroll = rectScroll.height - 4 - divBar.clientHeight - shiftTop - shiftBottom
const procBar = topBar / heightScroll
if (scrollDirection === 'vertical-reverse') {
divScroll.scrollTop = (divScroll.scrollHeight - divScroll.clientHeight) * (procBar - 1)
} else {
divScroll.scrollTop = (divScroll.scrollHeight - divScroll.clientHeight) * procBar
}
} else if (isScrollingByBar === 'horizontal') {
let X = Math.round(event.clientX) - dXY
if (X < rectScroll.left + 2 + shiftLeft) X = rectScroll.left + 2 + shiftLeft
if (X > rectScroll.right - divBarH.clientWidth - (mask !== 'none' ? 12 : 2) - shiftRight) {
X = rectScroll.right - divBarH.clientWidth - (mask !== 'none' ? 12 : 2) - shiftRight
}
divBarH.style.left = X - rectScroll.x + 'px'
const leftBar = X - rectScroll.x - shiftLeft - 2
const widthScroll =
rectScroll.width - 2 - (mask !== 'none' ? 12 : 2) - divBarH.clientWidth - shiftLeft - shiftRight
const procBar = leftBar / widthScroll
divScroll.scrollLeft = (divScroll.scrollWidth - divScroll.clientWidth) * procBar
}
}
const onScrollEnd = (): void => {
document.removeEventListener('pointermove', handleScroll)
document.body.style.userSelect = 'auto'
document.body.style.webkitUserSelect = 'auto'
document.removeEventListener('pointerup', onScrollEnd)
isScrollingByBar = false
}
const onScrollStart = (event: PointerEvent, direction: 'vertical' | 'horizontal'): void => {
if (divScroll == null) return
scrolling = false
dXY = Math.round(direction === 'vertical' ? event.offsetY : event.offsetX)
document.addEventListener('pointerup', onScrollEnd)
document.addEventListener('pointermove', handleScroll)
document.body.style.userSelect = 'none'
document.body.style.webkitUserSelect = 'none'
isScrollingByBar = direction
}
const renderFade = () => {
if (divScroll && !noFade) {
const th = shiftTop + (topCrop === 'top' ? 2 * fz - topCropValue : 0)
const tf =
topCrop === 'full'
? 0
: mask === 'both' || mask === 'top'
? 2 * fz - (topCrop === 'bottom' ? topCropValue : topCrop === 'top' ? 2 * fz - topCropValue : 0)
: 0
const gradient = `linear-gradient(
0deg,
rgba(0, 0, 0, 1) ${shiftBottom}px,
rgba(0, 0, 0, 0) ${shiftBottom}px,
rgba(0, 0, 0, 1) ${shiftBottom + (mask === 'both' || mask === 'bottom' ? 2 * fz : 0)}px,
rgba(0, 0, 0, 1) calc(100% - ${th + tf}px),
rgba(0, 0, 0, 0) calc(100% - ${th}px),
rgba(0, 0, 0, 1) calc(100% - ${th}px)
)`
divScroll.style.webkitMaskImage = gradient
}
if (divHScroll && horizontal && !noFade) {
const gradientH = `linear-gradient(
90deg,
rgba(0, 0, 0, 1) ${shiftLeft}px,
rgba(0, 0, 0, 0) ${shiftLeft}px,
rgba(0, 0, 0, 1) ${shiftLeft + (maskH === 'both' || maskH === 'right' ? 2 * fz : 0)}px,
rgba(0, 0, 0, 1) calc(100% - ${shiftRight + (maskH === 'both' || maskH === 'left' ? 2 * fz : 0)}px),
rgba(0, 0, 0, 0) calc(100% - ${shiftRight}px),
rgba(0, 0, 0, 1) calc(100% - ${shiftRight}px)
)`
divHScroll.style.webkitMaskImage = gradientH
}
}
const delayedCaller = new DelayedCaller(25)
const delayCall = (op: () => void) => {
delayedCaller.call(op)
}
const checkFade = (): void => {
delayCall(_checkFade)
}
const _checkFade = (): void => {
if (divScroll) {
beforeContent = divScroll.scrollTop
belowContent = divScroll.scrollHeight - divScroll.clientHeight - beforeContent
if (beforeContent > 2 && belowContent > 2) mask = 'both'
else if (beforeContent > 2) mask = 'top'
else if (belowContent > 2) mask = 'bottom'
else mask = 'none'
if (horizontal) {
leftContent = divScroll.scrollLeft
rightContent = divScroll.scrollWidth - divScroll.clientWidth - leftContent
if (leftContent > 2 && rightContent > 2) maskH = 'both'
else if (leftContent > 2) maskH = 'right'
else if (rightContent > 2) maskH = 'left'
else maskH = 'none'
}
if (inter.size) {
checkIntersectionFade()
}
renderFade()
}
if (!isScrollingByBar) {
checkBar()
}
if (!isScrollingByBar && horizontal) {
checkBarH()
}
}
function checkAutoScroll () {
if (firstScroll && divHeight && divScroll) {
scrollDown()
firstScroll = false
}
}
const scrollDown = (): void => {
if (divScroll) {
divScroll.scrollTop = divScroll.scrollHeight - divHeight + 2
}
}
$: if (scrolling && belowContent && belowContent > 0) {
firstScroll = false
scrollDown()
}
const checkIntersection = (entries: IntersectionObserverEntry[], observer: IntersectionObserver) => {
const interArr: Element[] = []
const catEntries: IntersectionObserverEntry[] = []
const lastCatEntries: IntersectionObserverEntry[] = []
entries.forEach((el) => {
if (el.isIntersecting && el.target.classList.contains('categoryHeader')) {
inter.add(el.target)
interArr.push(el.target)
} else inter.delete(el.target)
if (hasLastCategories) {
if (el.isIntersecting && el.target.classList.contains('categoryHeader')) catEntries.push(el)
if (el.isIntersecting && el.target.classList.contains('lastCat')) lastCatEntries.push(el)
}
})
if (interArr.length > 0) {
dispatch('lastScrolledCategory', interArr[interArr.length - 1]?.getAttribute('id'))
dispatch('firstScrolledCategory', interArr[0]?.getAttribute('id'))
const interCats: string[] = interArr.map((it) => it.getAttribute('id') as string)
dispatch('scrolledCategories', interCats)
}
if (hasLastCategories) {
const targets = new Set<Element>()
const closed = new Set<Element>()
lastCatEntries.forEach((last) => {
catEntries.forEach((cat) => {
if (last.target !== cat.target) {
if (
last.boundingClientRect.top < cat.boundingClientRect.top + 8 &&
last.boundingClientRect.top >= cat.boundingClientRect.top
) {
targets.add(cat.target)
}
if (cat.target.classList.contains('closed') && !closed.has(cat.target)) closed.add(cat.target)
}
})
})
closed.forEach((el) => {
if (!targets.has(el)) el.classList.remove('closed')
})
targets.forEach((el) => {
el.classList.add('closed')
})
}
}
const checkIntersectionFade = () => {
topCrop = 'none'
topCropValue = 0
if (!fade.multipler?.top || !divScroll) return
const offset = divScroll.getBoundingClientRect().top
inter.forEach((el) => {
const rect = el.getBoundingClientRect()
if (shiftTop > 0) {
if (offset + shiftTop < rect.top && offset + shiftTop + 2 * fz >= rect.top) {
if (topCrop === 'top' || topCrop === 'full') topCrop = 'full'
else topCrop = 'bottom'
topCropValue = offset + shiftTop + 2 * fz - rect.top
} else if (offset + shiftTop < rect.bottom && offset + shiftTop + 2 * fz > rect.bottom) {
topCrop = 'top'
topCropValue = offset + shiftTop + 2 * fz - rect.bottom
} else if (offset + shiftTop >= rect.top && offset + shiftTop + 2 * fz <= rect.bottom) {
topCrop = 'full'
topCropValue = offset + shiftTop + 2 * fz
}
}
})
}
const wheelEvent = (e: WheelEvent) => {
e = e || window.event
const deltaY = e.deltaY
if (deltaY < 0 && autoscroll && scrolling && beforeContent && beforeContent > 0) {
scrolling = false
} else if (deltaY > 0 && autoscroll && !scrolling && belowContent && belowContent <= 10) {
scrolling = true
}
}
let observer: IntersectionObserver
onMount(() => {
if (divScroll && divBox) {
divScroll.addEventListener('wheel', wheelEvent)
divScroll.addEventListener('scroll', checkFade)
delayCall(() => {
checkBar()
if (horizontal) {
checkBarH()
}
})
}
})
onDestroy(() => {
if (observer) observer.disconnect()
if (divScroll) {
divScroll.removeEventListener('wheel', wheelEvent)
divScroll.removeEventListener('scroll', checkFade)
}
})
let oldTop: number
if (checkForHeaders) {
beforeUpdate(() => {
if (divBox && divScroll) {
oldTop = divScroll.scrollTop
}
})
afterUpdate(() => {
if (divBox && divScroll) {
if (oldTop !== divScroll.scrollTop) {
divScroll.scrollTop = oldTop
}
delayCall(() => {
if (divBox == null) {
return
}
const tempEls = divBox.querySelectorAll('.categoryHeader')
observer = new IntersectionObserver(checkIntersection, { root: null, rootMargin: '0px', threshold: 0.1 })
tempEls.forEach((el) => {
observer.observe(el)
})
const tempCats = divBox.querySelectorAll('.lastCat')
if (tempCats.length > 0) {
hasLastCategories = true
tempCats.forEach((el) => {
observer.observe(el)
})
} else {
hasLastCategories = false
}
})
}
})
}
let divHeight: number
const _resize = (): void => {
checkFade()
}
const tapScroll = (n: number, dir: 'up' | 'down') => {
if (divScroll) {
if (orientir === 'horizontal') {
divScroll.scrollBy({ top: 0, left: dir === 'up' ? -n : n, behavior: 'smooth' })
} else {
divScroll.scrollBy({ top: dir === 'up' ? -n : n, left: 0, behavior: 'smooth' })
}
}
}
const clickOnTrack = (
ev: MouseEvent & { currentTarget: EventTarget & HTMLDivElement },
horizontal: boolean = false
) => {
if (
(divBar == null && !horizontal) ||
(divBarH == null && horizontal) ||
divScroll == null ||
isScrollingByBar !== false
) {
return
}
const rectScroll = divScroll.getBoundingClientRect()
if (horizontal) {
const x = ev.offsetX
const trackWidth = ev.currentTarget.clientWidth
const barWidth = divBarH.clientWidth
const leftBar =
x - barWidth / 2 <= 0
? rectScroll.left + shiftLeft + 2
: x + barWidth / 2 >= trackWidth
? rectScroll.right - barWidth - shiftRight - (mask !== 'none' ? 12 : 2)
: ev.clientX - barWidth / 2
divBarH.style.left = `${leftBar}px`
const widthScroll = rectScroll.width - 2 - (mask !== 'none' ? 12 : 2) - barWidth - shiftLeft - shiftRight
const procBar = (leftBar - rectScroll.left - shiftLeft - 2) / widthScroll
divScroll.scrollLeft = (divScroll.scrollWidth - divScroll.clientWidth) * procBar
} else {
const y = ev.offsetY
const trackHeight = ev.currentTarget.clientHeight
const barHeight = divBar.clientHeight
const topBar =
y - barHeight / 2 <= 0
? rectScroll.top + shiftTop + 2
: y + barHeight / 2 >= trackHeight
? rectScroll.bottom - barHeight - shiftBottom - 2
: ev.clientY - barHeight / 2
divBar.style.top = `${topBar}px`
const heightScroll = rectScroll.height - 4 - barHeight - shiftTop - shiftBottom
const procBar = (topBar - rectScroll.top - shiftTop - 2) / heightScroll
if (scrollDirection === 'vertical-reverse') {
divScroll.scrollTop = (divScroll.scrollHeight - divScroll.clientHeight) * (procBar - 1)
} else {
divScroll.scrollTop = (divScroll.scrollHeight - divScroll.clientHeight) * procBar
}
}
}
$: topButton =
(orientir === 'vertical' && (mask === 'top' || mask === 'both')) ||
(orientir === 'horizontal' && (maskH === 'right' || maskH === 'both'))
? 'visible'
: 'hidden'
$: bottomButton =
(orientir === 'vertical' && (mask === 'bottom' || mask === 'both')) ||
(orientir === 'horizontal' && (maskH === 'left' || maskH === 'both'))
? 'visible'
: 'hidden'
</script>
<svelte:window on:resize={_resize} />
<div
class="scroller-container {orientir} {invertScroll ? 'invert' : 'normal'}"
class:buttons={buttons === 'normal'}
class:union={buttons === 'union'}
class:sticked={stickedScrollBars}
class:thin={thinScrollBars}
class:shrink
style:user-select={isScrolling ? 'none' : 'inherit'}
style:--scroller-header-height={`${(fade.multipler?.top ?? 0) * fz + 2}px`}
style:--scroller-footer-height={`${(fade.multipler?.bottom ?? 0) * fz + (stickedScrollBars ? 0 : 2)}px`}
style:--scroller-left-offset={`${(fade.multipler?.left ?? 0) * fz + 2}px`}
style:--scroller-right-offset={`${(fade.multipler?.right ?? 0) * fz + (mask !== 'none' ? 12 : 2)}px`}
style:max-height={maxHeight !== undefined ? `${maxHeight}rem` : undefined}
>
<div bind:this={divHScroll} class="horizontalBox flex-col flex-shrink">
<div
bind:this={divScroll}
use:resizeObserver={(element) => {
divHeight = element.clientHeight
onResize?.()
}}
class="scroll relative flex-shrink flex-col"
style:flex-direction={scrollDirection === 'vertical-reverse' ? 'column-reverse' : 'column'}
class:disableOverscroll
class:scrollSnapX={scrollSnap && contentDirection === 'horizontal'}
class:scrollSnapY={scrollSnap && contentDirection === 'vertical'}
style:overflow-x={horizontal ? 'auto' : 'hidden'}
on:scroll={() => {
if (onScroll) {
onScroll({ autoScrolling: autoscroll && scrolling })
}
if (
$tooltipstore.label !== undefined ||
($tooltipstore.component !== undefined && $tooltipstore.kind !== 'submenu')
) {
closeTooltip()
}
clearTimeout(scrollTimer)
isScrolling = true
scrollTimer = setTimeout(() => {
isScrolling = false
}, 300)
}}
>
<!-- svelte-ignore a11y-no-static-element-interactions -->
<div
bind:this={divBox}
class="box{gap ? ` ${gap}` : ''}"
class:items-center={contentDirection === 'horizontal'}
style:padding
style:flex-direction={contentDirection === 'vertical'
? 'column'
: contentDirection === 'vertical-reverse'
? 'column-reverse'
: 'row'}
style:height={contentDirection === 'vertical-reverse' ? 'max-content' : noStretch ? 'auto' : '100%'}
style:align-items={align}
style:container-name={containerName}
style:container-type={containerType}
class:disableEvents={isScrolling && disablePointerEventsOnScroll}
use:resizeObserver={() => {
checkAutoScroll()
checkFade()
}}
on:dragover
on:drop
on:scroll
>
{#if bottomStart}<div class="flex-grow flex-shrink" />{/if}
<slot />
{#if bottomPadding}
<div style:width={'100%'} style:min-height={bottomPadding} />
{/if}
</div>
</div>
</div>
{#if buttons === 'normal'}
<button
class="scrollButton top {orientir}"
style:visibility={topButton}
on:click|preventDefault|stopPropagation={() => {
tapScroll(stepScroll, 'up')
}}
>
<div style:transform={orientir === 'horizontal' ? 'rotate(-90deg)' : ''}>
<IconUpOutline size={'medium'} />
</div>
</button>
<button
class="scrollButton bottom {orientir}"
style:visibility={bottomButton}
on:click|preventDefault|stopPropagation={() => {
tapScroll(stepScroll, 'down')
}}
>
<div style:transform={orientir === 'horizontal' ? 'rotate(-90deg)' : ''}>
<IconDownOutline size={'medium'} />
</div>
</button>
{:else if buttons === 'union'}
<div class="updown-container {orientir}">
<button
class="updown-up"
style:visibility={topButton}
on:click|preventDefault|stopPropagation={() => {
tapScroll(stepScroll, 'up')
}}
>
<HalfUpDown />
</button>
<button
class="updown-down"
style:visibility={bottomButton}
on:click|preventDefault|stopPropagation={() => {
tapScroll(stepScroll, 'down')
}}
>
<HalfUpDown />
</button>
</div>
{/if}
{#if mask !== 'none'}
<!-- svelte-ignore a11y-click-events-have-key-events -->
<!-- svelte-ignore a11y-no-static-element-interactions -->
<div
class="track"
class:hovered={isScrollingByBar === 'vertical'}
on:click|stopPropagation={(ev) => {
clickOnTrack(ev)
}}
/>
<!-- svelte-ignore a11y-no-static-element-interactions -->
<div
class="bar"
class:hovered={isScrollingByBar === 'vertical'}
class:reverse={scrollDirection === 'vertical-reverse'}
bind:this={divBar}
on:pointerdown|stopPropagation={(ev) => {
onScrollStart(ev, 'vertical')
}}
on:pointerleave={checkFade}
/>
{/if}
{#if horizontal && maskH !== 'none'}
<!-- svelte-ignore a11y-click-events-have-key-events -->
<!-- svelte-ignore a11y-no-static-element-interactions -->
<div
class="track-horizontal"
class:hovered={isScrollingByBar === 'horizontal'}
on:click|stopPropagation={(ev) => {
clickOnTrack(ev, true)
}}
/>
<!-- svelte-ignore a11y-no-static-element-interactions -->
<div
class="bar-horizontal"
class:hovered={isScrollingByBar === 'horizontal'}
bind:this={divBarH}
on:pointerdown|stopPropagation={(ev) => {
onScrollStart(ev, 'horizontal')
}}
on:pointerleave={checkFade}
/>
{/if}
</div>
<style lang="scss">
.updown-container {
position: absolute;
display: flex;
flex-direction: column;
align-items: center;
width: 1rem;
height: 1rem;
transform-origin: center;
transform: rotate(0deg);
transition: transform 0.15s var(--timing-main);
button {
width: 1rem;
height: 0.5rem;
color: var(--theme-trans-color);
border-radius: 0.25rem;
border: none;
outline: none;
&:hover,
&:focus {
color: var(--theme-caption-color);
background-color: var(--theme-button-hovered);
}
}
.updown-down {
transform-origin: center;
transform: rotate(180deg);
}
&.vertical {
left: 50%;
bottom: -2.25rem;
transform: translate(-50%, 0) rotate(0deg);
}
&.horizontal {
top: 50%;
right: -1.5rem;
transform: translate(0, -50%) rotate(90deg);
}
}
.scrollButton {
position: absolute;
color: var(--theme-caption-color);
background-color: transparent;
border: 1px solid transparent;
border-radius: 0.25rem;
visibility: hidden;
transform-origin: center;
transition-property: opacity, transform;
transition-timing-function: var(--timing-main);
transition-duration: 0.1s;
transform: scale(0.8);
opacity: 0.1;
&:hover,
&:focus {
transform: scale(1);
opacity: 0.8;
}
&:hover {
background-color: var(--theme-button-hovered);
}
&:focus {
box-shadow: 0 0 0 2px var(--primary-button-outline);
}
&.vertical {
width: 2rem;
height: 1.25rem;
}
&.horizontal {
width: 1.25rem;
height: 2rem;
}
&.top.vertical {
top: calc(var(--scroller-header-height) - 2rem);
left: 50%;
transform: translateX(-50%);
}
&.top.horizontal {
top: 50%;
left: -2rem;
transform: translateY(-50%);
}
&.bottom.vertical {
right: 50%;
bottom: calc(var(--scroller-footer-height) - 2rem);
transform: translateX(50%);
}
&.bottom.horizontal {
right: -2rem;
bottom: 50%;
transform: translateY(50%);
}
}
.scroller-container {
position: relative;
display: flex;
flex-direction: column;
align-items: center;
flex-shrink: 1;
min-width: 0;
min-height: 0;
&:not(.shrink) {
flex-grow: 1;
height: 100%;
}
&.vertical {
min-width: 1.5rem;
}
// &.horizontal {
// margin-right: 2rem;
// }
&.buttons.vertical {
margin: 1.5rem 0;
}
&.buttons.horizontal {
margin-right: 2rem;
}
&.union.vertical {
margin-bottom: 2.75rem;
}
&.union.horizontal {
margin-right: 1.5rem;
}
&.normal {
.track,
.bar {
right: 2px;
}
.track-horizontal,
.bar-horizontal {
bottom: var(--scroller-footer-height);
}
}
&.invert {
.track,
.bar {
left: 2px;
}
.track-horizontal,
.bar-horizontal {
top: 2px;
}
}
}
.horizontalBox {
flex-grow: 1;
min-width: 0;
min-height: 0;
width: 100%;
height: 100%;
}
.scroll {
will-change: opacity;
flex-grow: 1;
min-width: 0;
min-height: 0;
width: 100%;
height: 100%;
overflow-y: auto;
&.disableOverscroll {
overscroll-behavior: none;
}
&.scrollSnapY {
scroll-snap-type: y mandatory;
}
&.scrollSnapX {
scroll-snap-type: x mandatory;
}
&.scrollSnapX,
&.scrollSnapY {
scroll-padding-inline: var(--spacing-1);
}
&::-webkit-scrollbar:vertical {
display: none;
width: 0;
}
&::-webkit-scrollbar:horizontal {
display: none;
height: 0;
}
@media print {
overflow: visible !important;
}
}
.box {
display: flex;
flex-direction: column;
justify-content: flex-start;
}
.bar,
.bar-horizontal {
visibility: hidden;
position: absolute;
background-color: var(--scrollbar-bar-color);
transform-origin: center;
transition: all 0.15s;
border-radius: 0.125rem;
box-shadow: 0 0 1px 1px var(--theme-overlay-color);
opacity: 0;
cursor: pointer;
&.hovered {
transition: none;
}
}
.bar {
top: 2px;
right: 2px;
width: 8px;
min-height: 2rem;
max-height: calc(100% - 12px);
transform: scaleX(0.5);
&.reverse {
top: auto;
bottom: 2px;
}
&:hover,
&.hovered {
transform: scaleX(1);
}
}
.bar-horizontal {
left: 2px;
bottom: var(--scroller-footer-height, 2px);
height: 8px;
min-width: 2rem;
max-width: calc(100% - 12px);
transform: scaleY(0.5);
&:hover,
&.hovered {
transform: scaleY(1);
}
}
.track,
.track-horizontal {
position: absolute;
transform-origin: center;
transition: all 0.1s ease-in-out;
background-color: var(--scrollbar-track-color);
border-radius: 0.5rem;
opacity: 0;
&::after {
position: absolute;
content: '';
inset: 0;
transform-origin: center;
transition: all 0.1s ease-in-out;
}
}
.track {
top: var(--scroller-header-height, 2px);
bottom: var(--scroller-footer-height, 2px);
width: 8px;
transform: scaleX(0.1);
&::after {
transform: scaleX(10);
}
&:hover {
transform: scaleX(1);
opacity: 1;
&::after,
& + .bar {
transform: scaleX(1);
}
}
}
.track-horizontal {
bottom: var(--scroller-footer-height, 2px);
left: var(--scroller-left-offset, 2px);
right: var(--scroller-right-offset, 2px);
height: 8px;
transform: scaleY(0.1);
&::after {
transform: scaleY(10);
}
&:hover {
transform: scaleY(1);
opacity: 1;
&::after,
& + .bar-horizontal {
transform: scaleY(1);
}
}
}
.track:hover + .bar,
.track-horizontal:hover + .bar-horizontal,
.bar:hover,
.bar-horizontal:hover,
.bar.hovered,
.bar-horizontal.hovered {
background-color: var(--scrollbar-bar-hover);
border-radius: 0.25rem;
opacity: 1 !important;
box-shadow: 0 0 1px black;
}
.scroller-container.sticked,
.scroller-container.thin {
.bar,
.track {
transform-origin: center right;
}
.bar-horizontal,
.track-horizontal {
transform-origin: bottom center;
}
}
.scroller-container.sticked {
.bar,
.track {
right: 0;
}
.bar-horizontal,
.track-horizontal {
bottom: var(--scroller-footer-height, 0);
}
}
.scroller-container.thin {
.bar,
.track {
width: 6px;
}
.bar-horizontal,
.track-horizontal {
height: 6px;
}
}
.disableEvents {
pointer-events: none !important;
}
</style>