react-medium-image-zoom

The original medium.com-inspired image zooming library for React.

Features:

<img />, including all object-fit values, any object-position, and loading="lazy"
<div> and <span> with any background-image, background-size, and background-position
<picture> with <source /> and <img />
<figure> with <img />
Accessibility:
- JAWS in Chrome, Edge, and Firefox (Windows)
- NVDA in Chrome, Edge, and Firefox (Windows)
- VoiceOver in Safari (macOS, iOS)
- TalkBack in Chrome (Android)
Supports popular tools:
- Gatsby and gatsby-plugin-image
- Next.js
Zero dependencies

View the storybook examples to see various usages. NOTE: Help is wanted with making the examples more informative, so please start a discussion if you're able to help!

Quickstart

npm install --save react-medium-image-zoom

import React from 'react'
import Zoom from 'react-medium-image-zoom'
import 'react-medium-image-zoom/dist/styles.css'

export const MyImg = () => (
  <Zoom>
    <img
      alt="That Wanaka Tree, New Zealand by Laura Smetsers"
      src="/path/to/thatwanakatree.jpg"
      width="500"
    />
  </Zoom>
)

This library's compilation target is ES2022, but it only uses features from ES2020 and below. If you find you need to support older environments, run this project through your build system.

API

You can pass these options to either the Uncontrolled (default) or Controlled components.

export interface UncontrolledProps {
  // Accessible label text for when you want to unzoom
  // Default: 'Minimize image'
  a11yNameButtonUnzoom?: string

  // Accessible label text for when you want to zoom
  // Default: 'Expand image'
  a11yNameButtonZoom?: string

  // Your image
  children: ReactNode

  // Provide your own unzoom button icon
  // Default: ICompress
  IconUnzoom?: ElementType

  // Provide your own zoom button icon
  // Default: IEnlarge
  IconZoom?: ElementType

  // Scrollable parent element
  // Default: window
  scrollableEl?: Window | HTMLElement

  // Higher quality image attributes to use on zoom
  zoomImg?: ImgHTMLAttributes<HTMLImageElement>

  // Offset in pixels the zoomed image should
  // be from the window's boundaries
  // Default: 0
  zoomMargin?: number
}

You can pass these options to only the Controlled component.

export interface ControlledProps {
  // ...same as UncontrolledProps

  // Tell the component whether or not it should be zoomed
  // Default: false
  isZoomed: boolean

  // Listen for hints from the component about when you
  // should zoom (`true` value) or unzoom (`false` value)
  onZoomChange?: (value: boolean) => void
}

Basic Usage

Uncontrolled component (default)

Import the component and the CSS, wrap your image with the component, and the component will handle it's own state.

import React from 'react'
import Zoom from 'react-medium-image-zoom'
import 'react-medium-image-zoom/dist/styles.css'

// <img />
export const MyImg = () => (
  <Zoom>
    <img
      alt="That Wanaka Tree, New Zealand by Laura Smetsers"
      src="/path/to/thatwanakatree.jpg"
      width="500"
    />
  </Zoom>
)

// <div>
export const MyDiv = () => (
  <Zoom>
    <div
      aria-label="That Wanaka Tree, New Zealand by Laura Smetsers"
      role="img"
      style={{
        backgroundColor: '#fff',
        backgroundImage: `url("/path/to/thatwanakatree.jpg")`,
        backgroundPosition: '50%',
        backgroundRepeat: 'no-repeat',
        backgroundSize: 'cover',
        height: '0',
        paddingBottom: '56%',
        width: '100%',
      }}
    />
  </Zoom>
)

// <picture>
export const MyPicture = () => (
  <Zoom>
    <picture>
      <source media="(max-width: 800px)" srcSet="/path/to/teAraiPoint.jpg" />
      <img
        alt="A beautiful, serene setting in nature"
        src="/path/to/thatwanakatree.jpg"
        width="500"
      />
    </picture>
  </Zoom>
)

// <figure>
export const MyFigure = () => (
  <figure>
    <Zoom>
      <img
        alt="That Wanaka Tree, New Zealand by Laura Smetsers"
        src="/path/to/thatwanakatree.jpg"
        width="500"
      />
    </Zoom>
    <figcaption>Photo by Laura Smetsers</figcaption>
  </figure>
)

Controlled component

Import the Controlled component and the CSS, wrap your image with the component, and then dictate the isZoomed state to the component.

import React, { useCallback, useState } from 'react'
import { Controlled as ControlledZoom } from 'react-medium-image-zoom'
import 'react-medium-image-zoom/dist/styles.css'

const MyComponent = () => {
  const [isZoomed, setIsZoomed] = useState(false)

  const handleZoomChange = useCallback(shouldZoom => {
    setIsZoomed(shouldZoom)
  }, [])

  return (
    <ControlledZoom isZoomed={isZoomed} onZoomChange={handleZoomChange}>
      <img
        alt="That wanaka tree, alone in the water near mountains"
        src="/path/to/thatwanakatree.jpg"
        width="500"
      />
    </ControlledZoom>
  )
)

export default MyComponent

The onZoomChange prop accepts a callback that will receive true or false based on events that occur (like click or scroll events) to assist you in determining when to zoom and unzoom the component.

Styles

You can import the default styles from react-medium-image-zoom/dist/styles.css and override the values from your code, or you can copy the styles.css file and alter it to your liking. The latter is the best option, given rems should be used instead of px to account for different default browser font sizes, and it's hard for a library to guess at what these values should be.

An example of customizing the transition duration, timing function, overlay background color, and unzoom button styles with :focus-visible can be found in this story: https://rpearce.github.io/react-medium-image-zoom/?path=/story/img--custom-modal-styles

Migrating From v4 to v5

Here are the prop changes from v4 to be aware of:

closeText was renamed to a11yNameButtonUnzoom
openText was renamed to a11yNameButtonZoom
overlayBgColorStart was removed and is now controlled via the CSS selector [data-rmiz-modal-overlay="hidden"]
overlayBgColorEnd was removed and is now controlled via the CSS selector [data-rmiz-modal-overlay="visible"]
portalEl was removed, for we are using the <dialog> element now
transitionDuration was removed and is now controlled via the CSS selectors [data-rmiz-modal-overlay] and [data-rmiz-modal-img]
wrapElement was removed
wrapStyle was removed
zoomZindex was removed, for we are using the <dialog> element now

And you can now provide zoomImg props to specify a different image to load when zooming.

Contributors ✨

Thanks goes to these wonderful people (emoji key):

_{Robert Pearce} 💻 💬 ⚠️ 🐛 💡 🎨 👀 🤔 📖	_{Cameron Bothner} 💻 📖 🐛 💡 🤔 👀 ⚠️	_{Jeremy Bini} 💻 🐛	_ismay 🐛 🤔	_{Rajit Singh} 🐛	_{Roberto Saccon} 🐛	_wtfdaemon 🐛
_{Josh Sloat} 🐛 💻 💡 👀 🤔 📖 🎨 💬	_Aswin 💬	_{Alex Shelkovskiy} 🐛	_{Adrian Bindiu} 🐛	_{Kendall Buchanan} 🐛	_Kaycee 💻	_Anuj 🐛 💬
_{Ludwig Frank} 🐛 💻	_LX 🐛 🤔	_{Rosen Tomov} 🐛	_{Tom Moor} 💻 🐛	_{Johan Preynat} 💻 🐛	_{Rahul Gaba} 💻 🐛	_{Spencer Davis} 💻 🤔 👀 🎨
_dnlnvl 💻	_Madi 🤔	_{Ben Hood} 🤔 🐛 💡 👀	_Navilan 🤔	₁₃₈₀₆ 🐛	_{Akshay Kadam (A2K)} 🐛 🤔	_{Jake Stewart} 🐛 🤔
_hhh 🐛	_@davalapar 🐛	_{Sun Knudsen} 💻 🐛 🤔 💡 💬 👀 ⚠️ 📖	_{Douglas Galdino} 💻 📖 🐛 🤔 💡 👀 ⚠️	_{Mohammed Faragallah} 🐛 🤔 💡	_{Youngrok Kim} 💻 🐛	_{Nandhagopal Ezhilmaran} 🐛
_{Mattia Astorino} 🐛	_{Dan Wood} 📖	_{Zachery C Gentry} 🐛	_xmflsct 🐛	_Will.iam 💻 ⚠️	_{Gourav Goyal} 📖	_{Joshua Chen} 🐛 💻
_{David Edler} 🐛	_rikusen0335 🤔	_{Surjith S M} 🤔	_{developergunny} 🐛	_{Khan Mohsin} 💬	_{Robin Goudeketting} 🐛	_{Botros Toro} 🤔
_{Christian Guevara} 💬	_{Johan Book} 🐛	_{Paolo Di Bello} 🤔	_{Tommaso De Rossi} 📖 🐛	_Lezan 🐛 🤔