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tab performance (#9621)

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Co-authored-by: Freeplay <Freeplay@duck.com>
Reviewed-on: https://codeberg.org/calckey/calckey/pulls/9621
Co-authored-by: Free <freeplay@duck.com>
Co-committed-by: Free <freeplay@duck.com>
This commit is contained in:
Free 2023-02-12 22:49:38 +00:00 committed by Kainoa Kanter
parent 9046b76536
commit 3185512753
1 changed files with 8 additions and 6 deletions
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14
packages/client/src/components/global/MkPageHeader.vue
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@ -153,12 +153,14 @@ onMounted(() => {
// offsetWidth や offsetLeft は少数を丸めてしまうため getBoundingClientRect を使う必要がある
// https://developer.mozilla.org/ja/docs/Web/API/HTMLElement/offsetWidth#%E5%80%A4
function transition() {
const parentRect = tabsEl.getBoundingClientRect();
const rect = tabEl.getBoundingClientRect();
const left = (rect.left - parentRect.left + tabsEl?.scrollLeft);
tabHighlightEl.style.width = rect.width + 'px';
tabHighlightEl.style.left = left + 'px';
tabsEl?.scrollTo({left: left - 80, behavior: "smooth"});
window.requestAnimationFrame(() => {
const parentRect = tabsEl.getBoundingClientRect();
const rect = tabEl.getBoundingClientRect();
const left = (rect.left - parentRect.left + tabsEl?.scrollLeft);
tabHighlightEl.style.width = rect.width + 'px';
tabHighlightEl.style.left = left + 'px';
tabsEl?.scrollTo({left: left - 80, behavior: "smooth"});
})
tabEl.removeEventListener("transitionend", transition);
}
tabEl.addEventListener("transitionend", transition);