2023-12-28 00:06:32 +08:00

117 lines
3.1 KiB
TypeScript

"use client";
import { useSectionStore } from "@/components/docs/SectionProvider";
import { Tag } from "@/components/docs/Tag";
import { remToPx } from "@/lib/remToPx";
import { useInView } from "framer-motion";
import Link from "next/link";
import { useEffect, useRef } from "react";
function AnchorIcon(props: React.ComponentPropsWithoutRef<"svg">) {
return (
<svg
viewBox="0 0 20 20"
fill="none"
strokeLinecap="round"
aria-hidden="true"
{...props}
>
<path d="m6.5 11.5-.964-.964a3.535 3.535 0 1 1 5-5l.964.964m2 2 .964.964a3.536 3.536 0 0 1-5 5L8.5 13.5m0-5 3 3" />
</svg>
);
}
function Eyebrow({ tag, label }: { tag?: string; label?: string }) {
if (!tag && !label) {
return null;
}
return (
<div className="flex items-center gap-x-3">
{tag && <Tag>{tag}</Tag>}
{tag && label && (
<span className="h-0.5 w-0.5 rounded-full bg-zinc-300 dark:bg-zinc-600" />
)}
{label && (
<span className="font-mono text-xs text-zinc-400">{label}</span>
)}
</div>
);
}
function Anchor({
id,
inView,
children,
}: {
id: string;
inView: boolean;
children: React.ReactNode;
}) {
return (
<Link
href={`#${id}`}
className="group text-inherit no-underline hover:text-inherit"
>
{inView && (
<div className="absolute ml-[calc(-1*var(--width))] mt-1 hidden w-[var(--width)] opacity-0 transition [--width:calc(2.625rem+0.5px+50%-min(50%,calc(theme(maxWidth.lg)+theme(spacing.8))))] group-hover:opacity-100 group-focus:opacity-100 md:block lg:z-50 2xl:[--width:theme(spacing.10)]">
<div className="group/anchor block h-5 w-5 rounded-lg bg-zinc-50 ring-1 ring-inset ring-zinc-300 transition hover:ring-zinc-500 dark:bg-zinc-800 dark:ring-zinc-700 dark:hover:bg-zinc-700 dark:hover:ring-zinc-600">
<AnchorIcon className="h-5 w-5 stroke-zinc-500 transition dark:stroke-zinc-400 dark:group-hover/anchor:stroke-white" />
</div>
</div>
)}
{children}
</Link>
);
}
export function Heading<Level extends 2 | 3>({
children,
tag,
label,
level,
anchor = true,
...props
}: React.ComponentPropsWithoutRef<`h${Level}`> & {
id: string;
tag?: string;
label?: string;
level?: Level;
anchor?: boolean;
}) {
level = level ?? (2 as Level);
const Component = `h${level}` as "h2" | "h3";
const ref = useRef<HTMLHeadingElement>(null);
const registerHeading = useSectionStore((s) => s.registerHeading);
const inView = useInView(ref, {
margin: `${remToPx(-3.5)}px 0px 0px 0px`,
amount: "all",
});
useEffect(() => {
if (level === 2) {
registerHeading({ id: props.id, ref, offsetRem: tag || label ? 8 : 6 });
}
});
return (
<>
<Eyebrow tag={tag} label={label} />
<Component
ref={ref}
className={tag || label ? "mt-2 scroll-mt-32" : "scroll-mt-24"}
{...props}
>
{anchor ? (
<Anchor id={props.id} inView={inView}>
{children}
</Anchor>
) : (
children
)}
</Component>
</>
);
}