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June 18, 2023 13:54
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Masonry layout using React and CSS
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| import * as React from "react"; | |
| type MasonryProps = { | |
| breakpoints?: (Record<number, number> & { default?: number }) | number; | |
| gap?: string; | |
| className?: string; | |
| children: React.ReactNode; | |
| }; | |
| const DEFAULT_COLUMNS = 4; | |
| const DEFAULT_GAP = "40px"; | |
| export function Masonry({ | |
| breakpoints = DEFAULT_COLUMNS, | |
| gap = DEFAULT_GAP, | |
| children, | |
| }: MasonryProps) { | |
| const defaultCols = | |
| typeof breakpoints === "number" | |
| ? breakpoints | |
| : breakpoints.default || DEFAULT_COLUMNS; | |
| const [cols, setCols] = React.useState(defaultCols); | |
| const lastAnimationFrameRef = React.useRef<number | null>(null); | |
| const calculateColumn = React.useCallback(() => { | |
| const windowWidth = (window && window.innerWidth) || Infinity; | |
| let bp = | |
| typeof breakpoints !== "object" | |
| ? { default: breakpoints || DEFAULT_COLUMNS } | |
| : breakpoints; | |
| let matchBreakpoint = Infinity; | |
| let { default: col = DEFAULT_COLUMNS, ...breakpointOptions } = bp; | |
| const bpKeys = Object.keys(breakpointOptions); | |
| for (let i = 0; i < bpKeys.length; i++) { | |
| const size = parseInt(bpKeys[i]); | |
| const isBreakpoint = size > 0 && windowWidth <= size; | |
| if (isBreakpoint && size < matchBreakpoint) { | |
| matchBreakpoint = size; | |
| col = bp[size]; | |
| } | |
| } | |
| setCols(Math.max(1, col)); | |
| }, []); | |
| const calculateColumnDebounce = React.useCallback(() => { | |
| if (!window || !window.requestAnimationFrame) { | |
| calculateColumn(); | |
| return; | |
| } | |
| if (window.cancelAnimationFrame && lastAnimationFrameRef.current) { | |
| window.cancelAnimationFrame(lastAnimationFrameRef.current); | |
| } | |
| lastAnimationFrameRef.current = window.requestAnimationFrame(() => { | |
| calculateColumn(); | |
| }); | |
| }, []); | |
| React.useEffect(() => { | |
| calculateColumn(); | |
| window.addEventListener("resize", calculateColumnDebounce); | |
| return () => { | |
| window.removeEventListener("resize", calculateColumnDebounce); | |
| }; | |
| }, []); | |
| const childs = React.useMemo(() => { | |
| const items = new Array(cols); | |
| const childrens = React.Children.toArray(children); | |
| for (let i = 0; i < childrens.length; i++) { | |
| const columnIndex = i % cols; | |
| if (!items[columnIndex]) { | |
| items[columnIndex] = []; | |
| } | |
| items[columnIndex].push(childrens[i]); | |
| } | |
| return items; | |
| }, [cols, children]); | |
| const columnWidth = `${100 / childs.length}%`; | |
| return ( | |
| <div className="flex w-auto" style={{ gap }}> | |
| {childs.map((child, i) => ( | |
| <div | |
| style={{ | |
| display: "flex", | |
| flexDirection: "column", | |
| width: columnWidth, | |
| gap, | |
| }} | |
| key={i} | |
| > | |
| {child} | |
| </div> | |
| ))} | |
| </div> | |
| ); | |
| } |
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