revert...

This commit is contained in:
tamaina 2023-07-17 10:16:19 +00:00
parent 5a5ef7564a
commit 41824ae383
1 changed files with 23 additions and 2 deletions

View File

@ -233,6 +233,10 @@ watch([$$(weakBacked), $$(contentEl)], () => {
})();
});
function preventDefault(ev: Event) {
ev.preventDefault();
}
/**
* アイテムを上に追加した場合に追加分だけスクロールを下にずらす
* @param fn DOM操作(unshiftItemsなどで)
@ -240,15 +244,32 @@ watch([$$(weakBacked), $$(contentEl)], () => {
function adjustScroll(fn: () => void): Promise<void> {
const oldHeight = scrollableElement ? scrollableElement.scrollHeight : getBodyScrollHeight();
const oldScroll = scrollableElement ? scrollableElement.scrollTop : window.scrollY;
//
try {
// scrollableElementOrHtmlundefined
scrollableElementOrHtml.addEventListener('wheel', preventDefault, { passive: false });
scrollableElementOrHtml.addEventListener('touchmove', preventDefault, { passive: false });
// try
scroll(scrollableElement, { top: oldScroll, behavior: 'instant' });
} catch (err) {
console.error(err, { scrollableElementOrHtml });
}
denyMoveTransition.value = true;
fn();
return nextTick(() => {
const top = oldScroll + ((scrollableElement ? scrollableElement.scrollHeight : getBodyScrollHeight()) - oldHeight);
scroll(scrollableElement, { top, behavior: 'instant' });
try {
const top = oldScroll + ((scrollableElement ? scrollableElement.scrollHeight : getBodyScrollHeight()) - oldHeight);
scroll(scrollableElement, { top, behavior: 'instant' });
// scrollableElementOrHtmlundefined
scrollableElementOrHtml.removeEventListener('wheel', preventDefault);
scrollableElementOrHtml.removeEventListener('touchmove', preventDefault);
} catch (err) {
console.error(err, { scrollableElementOrHtml });
}
denyMoveTransition.value = false;
return nextTick();
});