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fix(client): ✌️

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This commit is contained in:
syuilo
2020-07-19 12:26:05 +09:00
parent 3f71b14637
commit 280eeb9d75
4 changed files with 33 additions and 31 deletions
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24
src/client/scripts/scroll.ts
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@ -26,6 +26,19 @@ export function onScrollTop(el: Element, cb) {
container.addEventListener('scroll', onScroll, { passive: true });
}
export function onScrollBottom(el: Element, cb) {
const container = getScrollContainer(el) || window;
const onScroll = ev => {
if (!document.body.contains(el)) return;
const pos = getScrollPosition(el);
if (pos + el.clientHeight > el.scrollHeight - 1) {
cb();
container.removeEventListener('scroll', onscroll);
}
};
container.addEventListener('scroll', onScroll, { passive: true });
}
export function scroll(el: Element, top: number) {
const container = getScrollContainer(el);
if (container == null) {
@ -34,3 +47,14 @@ export function scroll(el: Element, top: number) {
container.scrollTop = top;
}
}
export function isBottom(el: Element, asobi = 0) {
const container = getScrollContainer(el);
const current = container
? el.scrollTop + el.offsetHeight
: window.scrollY + window.innerHeight;
const max = container
? el.scrollHeight
: document.body.offsetHeight;
return current >= (max - asobi);
}