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README.md

React GridList

A virtual-scrolling GridList component based on CSS Grids.

  • Render anything (not just images) of a known width/height inside.
  • Variable height items in the same row.
  • Highly performant virtual scrolling (aka windowing) for buttery smoothness.
  • Customizable & Responsive.
  • Very small bundle size

Install

npm install --save react-gridlist

Example

import React from "react"
import GridList from "react-gridlist"

function getGridGap(elementWidth: number, windowHeight: number) {
  if (elementWidth > 720 && windowHeight > 480) {
    return 10
  } else {
    return 5
  }
}

function getColumnCount(elementWidth: number, gridGap: number) {
  return Math.floor((elementWidth + gridGap) / (300 + gridGap))
}

function getWindowMargin(windowHeight: number) {
  return Math.round(windowHeight * 1.5)
}

function getItemData(image: Image, columnWidth: number) {
  let imageRatio = image.height / image.width
  let adjustedHeight = Math.round(columnWidth * imageRatio)

  return {
    key: image.url,
    height: adjustedHeight,
  }
}

function Example(props) {
  return (
    <GridList
      items={props.images}
      getGridGap={getGridGap}
      getColumnCount={getColumnCount}
      getWindowMargin={getWindowMargin}
      getItemData={getItemData}
      renderItem={(image) => {
        return (
          <img
            src={image.url}
            width={image.width}
            height={image.height}
            className={styles.image}
          />
        )
      }}
    />
  )
}

Fixed Column Width

You can also pass a fixedColumnWidth to lock the columns to a specific pixel width.

<GridList
  // ...
  fixedColumnWidth={300}
/>