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Fix jumping Scroller (#2305)

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Signed-off-by: Alexander Platov <sas_lord@mail.ru>
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Alexander Platov 2022-10-14 09:13:18 +03:00 committed by GitHub
parent 4304066083
commit c808457c30
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 12 additions and 2 deletions
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12
packages/ui/src/components/Scroller.svelte
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@ -13,7 +13,7 @@
// limitations under the License. // limitations under the License.
--> -->
<script lang="ts"> <script lang="ts">
import { onDestroy, onMount } from 'svelte' import { beforeUpdate, afterUpdate, onDestroy, onMount } from 'svelte'
import { resizeObserver } from '../resize' import { resizeObserver } from '../resize'
import { themeStore as themeOptions } from '@hcengineering/theme' import { themeStore as themeOptions } from '@hcengineering/theme'
import type { FadeOptions } from '../types' import type { FadeOptions } from '../types'
@ -203,6 +203,16 @@
if (divScroll) divScroll.removeEventListener('scroll', checkFade) if (divScroll) divScroll.removeEventListener('scroll', checkFade)
}) })
let oldTop: number
beforeUpdate(() => {
if (divBox && divScroll) oldTop = divScroll.scrollTop
})
afterUpdate(() => {
if (divBox && divScroll) {
if (oldTop !== divScroll.scrollTop) divScroll.scrollTop = oldTop
}
})
let divHeight: number let divHeight: number
const _resize = (): void => checkFade() const _resize = (): void => checkFade()