286 lines
9.2 KiB
JavaScript
286 lines
9.2 KiB
JavaScript
"use client"
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import * as React from "react"
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import { Drawer as DrawerPrimitive } from "vaul"
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import { cn } from "@/lib/utils"
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const DrawerScrollLockContext = React.createContext(null)
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/**
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* 移动端滚动锁定：仅将 body 设为 position:fixed，用负值 top 把页面“拉”回当前视口位置，
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* 既锁定滚动又保留视觉位置；overlay 上 ontouchmove preventDefault 防止背景触摸滚动。
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*/
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function useScrollLock(open) {
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const savedScrollYRef = React.useRef(0)
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const onOverlayTouchMove = React.useCallback((e) => {
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e.preventDefault()
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}, [])
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React.useEffect(() => {
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if (!open || typeof document === "undefined") return
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const scrollY = window.scrollY ?? window.pageYOffset
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savedScrollYRef.current = scrollY
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const prev = {
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position: document.body.style.position,
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top: document.body.style.top,
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left: document.body.style.left,
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right: document.body.style.right,
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width: document.body.style.width,
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}
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document.body.style.position = "fixed"
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document.body.style.top = `-${scrollY}px`
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document.body.style.left = "0"
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document.body.style.right = "0"
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document.body.style.width = "100%"
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return () => {
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document.body.style.position = prev.position
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document.body.style.top = prev.top
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document.body.style.left = prev.left
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document.body.style.right = prev.right
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document.body.style.width = prev.width
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window.scrollTo(0, savedScrollYRef.current)
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}
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}, [open])
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return React.useMemo(
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() => (open ? { onTouchMove: onOverlayTouchMove } : null),
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[open, onOverlayTouchMove]
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)
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}
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function parseVhToPx(vhStr) {
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if (typeof vhStr === "number") return vhStr
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const match = String(vhStr).match(/^([\d.]+)\s*vh$/)
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if (!match) return null
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return (window.innerHeight * Number(match[1])) / 100
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}
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function Drawer({ open, ...props }) {
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const scrollLock = useScrollLock(open)
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const contextValue = React.useMemo(
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() => ({ ...scrollLock, open: !!open }),
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[scrollLock, open]
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)
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return (
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<DrawerScrollLockContext.Provider value={contextValue}>
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<DrawerPrimitive.Root modal={false} data-slot="drawer" open={open} {...props} />
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</DrawerScrollLockContext.Provider>
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)
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}
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function DrawerTrigger({
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...props
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}) {
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return <DrawerPrimitive.Trigger data-slot="drawer-trigger" {...props} />;
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}
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function DrawerPortal({
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...props
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}) {
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return <DrawerPrimitive.Portal data-slot="drawer-portal" {...props} />;
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}
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function DrawerClose({
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...props
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}) {
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return <DrawerPrimitive.Close data-slot="drawer-close" {...props} />;
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}
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function DrawerOverlay({
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className,
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...props
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}) {
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const ctx = React.useContext(DrawerScrollLockContext)
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const { open = false, ...scrollLockProps } = ctx || {}
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// modal={false} 时 vaul 不渲染/隐藏 Overlay，用自定义遮罩 div 保证始终有遮罩；点击遮罩关闭
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return (
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<DrawerPrimitive.Close asChild>
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<div
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data-slot="drawer-overlay"
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data-state={open ? "open" : "closed"}
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role="button"
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tabIndex={-1}
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aria-label="关闭"
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className={cn(
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"fixed inset-0 z-50 cursor-default bg-[var(--drawer-overlay,rgba(0,0,0,0.45))] backdrop-blur-[6px]",
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"data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:animate-in data-[state=open]:fade-in-0",
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className
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)}
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{...scrollLockProps}
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{...props}
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/>
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</DrawerPrimitive.Close>
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);
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}
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function DrawerContent({
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className,
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children,
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defaultHeight = "77vh",
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minHeight = "20vh",
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maxHeight = "90vh",
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...props
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}) {
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const [heightPx, setHeightPx] = React.useState(() =>
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typeof window !== "undefined" ? parseVhToPx(defaultHeight) : null
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);
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const [isDragging, setIsDragging] = React.useState(false);
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const dragRef = React.useRef({ startY: 0, startHeight: 0 });
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const minPx = React.useMemo(() => parseVhToPx(minHeight), [minHeight]);
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const maxPx = React.useMemo(() => parseVhToPx(maxHeight), [maxHeight]);
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React.useEffect(() => {
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const px = parseVhToPx(defaultHeight);
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if (px != null) setHeightPx(px);
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}, [defaultHeight]);
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React.useEffect(() => {
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const sync = () => {
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const max = parseVhToPx(maxHeight);
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const min = parseVhToPx(minHeight);
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setHeightPx((prev) => {
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if (prev == null) return parseVhToPx(defaultHeight);
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const clamped = Math.min(prev, max ?? prev);
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return Math.max(clamped, min ?? clamped);
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});
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};
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window.addEventListener("resize", sync);
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return () => window.removeEventListener("resize", sync);
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}, [defaultHeight, minHeight, maxHeight]);
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const handlePointerDown = React.useCallback(
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(e) => {
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e.preventDefault();
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setIsDragging(true);
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dragRef.current = { startY: e.clientY ?? e.touches?.[0]?.clientY, startHeight: heightPx ?? parseVhToPx(defaultHeight) ?? 0 };
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},
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[heightPx, defaultHeight]
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);
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React.useEffect(() => {
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if (!isDragging) return;
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const move = (e) => {
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const clientY = e.clientY ?? e.touches?.[0]?.clientY;
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const { startY, startHeight } = dragRef.current;
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const delta = startY - clientY;
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const next = Math.min(maxPx ?? Infinity, Math.max(minPx ?? 0, startHeight + delta));
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setHeightPx(next);
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};
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const up = () => setIsDragging(false);
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document.addEventListener("mousemove", move, { passive: true });
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document.addEventListener("mouseup", up);
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document.addEventListener("touchmove", move, { passive: true });
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document.addEventListener("touchend", up);
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return () => {
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document.removeEventListener("mousemove", move);
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document.removeEventListener("mouseup", up);
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document.removeEventListener("touchmove", move);
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document.removeEventListener("touchend", up);
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};
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}, [isDragging, minPx, maxPx]);
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const contentStyle = React.useMemo(() => {
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if (heightPx == null) return undefined;
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return { height: `${heightPx}px`, maxHeight: maxPx != null ? `${maxPx}px` : undefined };
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}, [heightPx, maxPx]);
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return (
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<DrawerPortal data-slot="drawer-portal">
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<DrawerOverlay />
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<DrawerPrimitive.Content
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data-slot="drawer-content"
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style={contentStyle}
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className={cn(
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"group/drawer-content fixed z-50 flex h-auto flex-col bg-[var(--card)] text-[var(--text)] border-[var(--border)]",
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"data-[vaul-drawer-direction=top]:inset-x-0 data-[vaul-drawer-direction=top]:top-0 data-[vaul-drawer-direction=top]:mb-24 data-[vaul-drawer-direction=top]:max-h-[80vh] data-[vaul-drawer-direction=top]:rounded-b-[var(--radius)] data-[vaul-drawer-direction=top]:border-b drawer-shadow-top",
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"data-[vaul-drawer-direction=bottom]:inset-x-0 data-[vaul-drawer-direction=bottom]:bottom-0 data-[vaul-drawer-direction=bottom]:mt-24 data-[vaul-drawer-direction=bottom]:max-h-[88vh] data-[vaul-drawer-direction=bottom]:rounded-t-[20px] data-[vaul-drawer-direction=bottom]:border-t drawer-shadow-bottom",
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"data-[vaul-drawer-direction=right]:inset-y-0 data-[vaul-drawer-direction=right]:right-0 data-[vaul-drawer-direction=right]:w-3/4 data-[vaul-drawer-direction=right]:border-l data-[vaul-drawer-direction=right]:sm:max-w-sm",
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"data-[vaul-drawer-direction=left]:inset-y-0 data-[vaul-drawer-direction=left]:left-0 data-[vaul-drawer-direction=left]:w-3/4 data-[vaul-drawer-direction=left]:border-r data-[vaul-drawer-direction=left]:sm:max-w-sm",
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"drawer-content-theme",
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className
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)}
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{...props}>
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<div
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role="separator"
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aria-label="拖动调整高度"
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onMouseDown={handlePointerDown}
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onTouchStart={handlePointerDown}
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className={cn(
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"mx-auto mt-4 hidden h-2 w-[100px] shrink-0 rounded-full bg-[var(--muted)] cursor-n-resize touch-none select-none",
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"group-data-[vaul-drawer-direction=bottom]/drawer-content:block",
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"hover:bg-[var(--muted-foreground)/0.4] active:bg-[var(--muted-foreground)/0.6]"
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)}
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/>
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{children}
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</DrawerPrimitive.Content>
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</DrawerPortal>
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);
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}
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function DrawerHeader({
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className,
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...props
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}) {
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return (
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<div
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data-slot="drawer-header"
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className={cn(
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"flex flex-col gap-0.5 p-4 border-b border-[var(--border)] group-data-[vaul-drawer-direction=bottom]/drawer-content:text-center group-data-[vaul-drawer-direction=top]/drawer-content:text-center md:gap-1.5 md:text-left",
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"drawer-header-theme",
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className
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)}
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{...props} />
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);
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}
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function DrawerFooter({
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className,
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...props
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}) {
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return (
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<div
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data-slot="drawer-footer"
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className={cn("mt-auto flex flex-col gap-2 p-4", className)}
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{...props} />
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);
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}
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function DrawerTitle({
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className,
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...props
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}) {
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return (
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<DrawerPrimitive.Title
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data-slot="drawer-title"
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className={cn("font-semibold text-[var(--text)]", className)}
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{...props} />
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);
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}
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function DrawerDescription({
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className,
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...props
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}) {
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return (
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<DrawerPrimitive.Description
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data-slot="drawer-description"
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className={cn("text-sm text-[var(--muted)]", className)}
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{...props} />
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);
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}
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export {
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Drawer,
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DrawerPortal,
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DrawerOverlay,
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DrawerTrigger,
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DrawerClose,
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DrawerContent,
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DrawerHeader,
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DrawerFooter,
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DrawerTitle,
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DrawerDescription,
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}
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