Bento Grid

1"use client"
2 
3import * as React from "react"
4 
5import { cn } from "@/lib/utils"
6 
7export interface BentoGridProps extends React.ComponentProps<"div"> {
8  /** Milliseconds between one tile arriving and the next. */
9  stagger?: number
10  /** Run on mount instead of holding until the grid scrolls into view. */
11  startOnView?: boolean
12  /** Render the finished layout with no arrival. */
13  disabled?: boolean
14}
15 
16/**
17 * The grid owns the arrival, not the tiles: it hands each tile its place in the
18 * order, so tiles stay plain markup and can be composed, wrapped or reordered
19 * without carrying an index around.
20 */
21export function BentoGrid({
22  children,
23  className,
24  stagger = 70,
25  startOnView = true,
26  disabled = false,
27  style,
28  ...props
29}: BentoGridProps) {
30  const ref = React.useRef<HTMLDivElement>(null)
31  const [active, setActive] = React.useState(!startOnView)
32 
33  React.useEffect(() => {
34    const root = ref.current
35    if (!root) {
36      return
37    }
38 
39    for (const [index, tile] of Array.from(
40      root.querySelectorAll<HTMLElement>("[data-slot='bento-card']")
41    ).entries()) {
42      tile.style.setProperty("--bento-delay", `${index * stagger}ms`)
43    }
44  }, [stagger, children])
45 
46  React.useEffect(() => {
47    if (!startOnView || disabled) {
48      return
49    }
50 
51    const root = ref.current
52    if (!root || typeof IntersectionObserver === "undefined") {
53      setActive(true)
54      return
55    }
56 
57    const observer = new IntersectionObserver(
58      ([entry]) => {
59        if (entry.isIntersecting) {
60          setActive(true)
61          observer.disconnect()
62        }
63      },
64      { threshold: 0.15 }
65    )
66 
67    observer.observe(root)
68    return () => observer.disconnect()
69  }, [startOnView, disabled])
70 
71  return (
72    <div
73      ref={ref}
74      data-slot="bento-grid"
75      data-active={disabled || active ? "" : undefined}
76      className={cn(
77        "group grid auto-rows-[minmax(9rem,auto)] grid-cols-1 gap-4 sm:grid-cols-3",
78        className
79      )}
80      style={style}
81      {...props}
82    >
83      {children}
84    </div>
85  )
86}
87 
88export interface BentoCardProps extends Omit<
89  React.ComponentProps<"div">,
90  "title"
91> {
92  /** Heading for the tile. */
93  title?: React.ReactNode
94  /** Supporting line under the title. */
95  description?: React.ReactNode
96  /** Mark shown above the title. A glyph or a small icon. */
97  icon?: React.ReactNode
98  /** Anything pinned to the bottom of the tile. A link, usually. */
99  footer?: React.ReactNode
100}
101 
102export function BentoCard({
103// … truncated