1 files changed, 0 insertions, 144 deletions
diff --git a/packages/frontend/src/scripts/scroll.ts b/packages/frontend/src/scripts/scroll.ts
deleted file mode 100644
index f0274034b5..0000000000
--- a/packages/frontend/src/scripts/scroll.ts
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-type ScrollBehavior = 'auto' | 'smooth' | 'instant';
-
-export function getScrollContainer(el: HTMLElement | null): HTMLElement | null {
-	if (el == null || el.tagName === 'HTML') return null;
-	const overflow = window.getComputedStyle(el).getPropertyValue('overflow-y');
-	if (overflow === 'scroll' || overflow === 'auto') {
-		return el;
-	} else {
-		return getScrollContainer(el.parentElement);
-	}
-}
-
-export function getStickyTop(el: HTMLElement, container: HTMLElement | null = null, top = 0) {
-	if (!el.parentElement) return top;
-	const data = el.dataset.stickyContainerHeaderHeight;
-	const newTop = data ? Number(data) + top : top;
-	if (el === container) return newTop;
-	return getStickyTop(el.parentElement, container, newTop);
-}
-
-export function getStickyBottom(el: HTMLElement, container: HTMLElement | null = null, bottom = 0) {
-	if (!el.parentElement) return bottom;
-	const data = el.dataset.stickyContainerFooterHeight;
-	const newBottom = data ? Number(data) + bottom : bottom;
-	if (el === container) return newBottom;
-	return getStickyBottom(el.parentElement, container, newBottom);
-}
-
-export function getScrollPosition(el: HTMLElement | null): number {
-	const container = getScrollContainer(el);
-	return container == null ? window.scrollY : container.scrollTop;
-}
-
-export function onScrollTop(el: HTMLElement, cb: () => unknown, tolerance = 1, once = false) {
-	// とりあえず評価してみる
-	if (el.isConnected && isTopVisible(el)) {
-		cb();
-		if (once) return null;
-	}
-
-	const container = getScrollContainer(el) ?? window;
-
-	const onScroll = ev => {
-		if (!document.body.contains(el)) return;
-		if (isTopVisible(el, tolerance)) {
-			cb();
-			if (once) removeListener();
-		}
-	};
-
-	function removeListener() { container.removeEventListener('scroll', onScroll); }
-
-	container.addEventListener('scroll', onScroll, { passive: true });
-	return removeListener;
-}
-
-export function onScrollBottom(el: HTMLElement, cb: () => unknown, tolerance = 1, once = false) {
-	const container = getScrollContainer(el);
-
-	// とりあえず評価してみる
-	if (el.isConnected && isBottomVisible(el, tolerance, container)) {
-		cb();
-		if (once) return null;
-	}
-
-	const containerOrWindow = container ?? window;
-	const onScroll = ev => {
-		if (!document.body.contains(el)) return;
-		if (isBottomVisible(el, 1, container)) {
-			cb();
-			if (once) removeListener();
-		}
-	};
-
-	function removeListener() {
-		containerOrWindow.removeEventListener('scroll', onScroll);
-	}
-
-	containerOrWindow.addEventListener('scroll', onScroll, { passive: true });
-	return removeListener;
-}
-
-export function scroll(el: HTMLElement, options: ScrollToOptions | undefined) {
-	const container = getScrollContainer(el);
-	if (container == null) {
-		window.scroll(options);
-	} else {
-		container.scroll(options);
-	}
-}
-
-/**
- * Scroll to Top
- * @param el Scroll container element
- * @param options Scroll options
- */
-export function scrollToTop(el: HTMLElement, options: { behavior?: ScrollBehavior; } = {}) {
-	scroll(el, { top: 0, ...options });
-}
-
-/**
- * Scroll to Bottom
- * @param el Content element
- * @param options Scroll options
- * @param container Scroll container element
- */
-export function scrollToBottom(
-	el: HTMLElement,
-	options: ScrollToOptions = {},
-	container = getScrollContainer(el),
-) {
-	if (container) {
-		container.scroll({ top: el.scrollHeight - container.clientHeight + getStickyTop(el, container) || 0, ...options });
-	} else {
-		window.scroll({
-			top: (el.scrollHeight - window.innerHeight + getStickyTop(el, container) + (window.innerWidth <= 500 ? 96 : 0)) || 0,
-			...options,
-		});
-	}
-}
-
-export function isTopVisible(el: HTMLElement, tolerance = 1): boolean {
-	const scrollTop = getScrollPosition(el);
-	return scrollTop <= tolerance;
-}
-
-export function isBottomVisible(el: HTMLElement, tolerance = 1, container = getScrollContainer(el)) {
-	if (container) return el.scrollHeight <= container.clientHeight + Math.abs(container.scrollTop) + tolerance;
-	return el.scrollHeight <= window.innerHeight + window.scrollY + tolerance;
-}
-
-// https://ja.javascript.info/size-and-scroll-window#ref-932
-export function getBodyScrollHeight() {
-	return Math.max(
-		document.body.scrollHeight, document.documentElement.scrollHeight,
-		document.body.offsetHeight, document.documentElement.offsetHeight,
-		document.body.clientHeight, document.documentElement.clientHeight,
-	);
-}