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https://github.com/digidem/react-dimensions

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https://github.com/digidem/react-dimensions

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# react-dimensions



React [higher-order component](https://gist.github.com/sebmarkbage/ef0bf1f338a7182b6775) to get the dimensions of a wrapper element and pass them as properties to the child element.



**DEVELOPMENT STATUS:** I'm not really using this any more since for grids/tables in React I've switched from [fixed-data-table](https://github.com/facebook/fixed-data-table) (which I was using this for) to [react-virtualized](https://github.com/bvaughn/react-virtualized) which includes similar functionality to this with the [Autosizer](https://bvaughn.github.io/react-virtualized/#/components/AutoSizer). I'm happy for someone else to take this module on.



**v2.0.0-alpha1:** Includes several breaking changes, most importantly changing the way dimensions are calculated. The parent container is now used for width calculations, and the wrapper div inside this component is ignored. Hopefully this will solve the multiple styling issues users have had, but it will break layout in apps using v1.2.0



## Why? How?



Some React components require a width to be set in pixels, and cannot be set to `100%`. This is a challenge for responsive design. This component measures the size of the parent node, and then passes these dimensions to your component.



## Installation



Requires [nodejs](http://nodejs.org/).



```sh

$ npm install react-dimensions

```



To install the pre-release version:



```sh

$ npm install react-dimensions@next

```



## API



### Dimensions([options])(MyComponent)



Wraps a react component and adds properties `containerHeight` and

`containerWidth`. Useful for responsive design. Properties update on

window resize. **Note** that the parent element must have either a

height or a width, or nothing will be rendered



Can be used as a

[higher-order component](http://babeljs.io/blog/2015/06/07/react-on-es6-plus/#property-initializers)

or as an [ES7 class decorator](https://github.com/wycats/javascript-decorators)

(see examples)



**Parameters**



-   `options` **[object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)=**

    -   `options.getHeight` **[function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)=** A function that is passed an element and returns element

        height, where element is the wrapper div. Defaults to `(element) => element.clientHeight`

    -   `options.getWidth` **[function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)=** A function that is passed an element and returns element

        width, where element is the wrapper div. Defaults to `(element) => element.clientWidth`

    -   `options.debounce` **\[[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)]** Optionally debounce the `onResize` callback function by

        supplying the delay time in milliseconds. This will prevent excessive dimension

        updates. See  for more information. Defaults to `0`, which disables debouncing.

    -   `options.debounceOpts` **\[[object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)]** Options to pass to the debounce function. See

         for all available options. Defaults to `{}`.

    -   `options.containerStyle` **[object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)=** A style object for the `
` that will wrap your component.

        If you are using a flexbox layout you will need to style this `div` rather than your wrapped component (because flexbox only works with direct children). The default style is

        `{ margin: 0, padding: 0, border: 0 }`.

    -   `options.className` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)=** Control the class name set on the wrapper `
`

    -   `options.elementResize` **[boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)=** Set true to watch the wrapper `div` for changes in

        size which are not a result of window resizing - e.g. changes to the flexbox and other layout. (optional, default `false`)



**Examples**



```javascript

// ES2015

import React from 'react'

import Dimensions from 'react-dimensions'



class MyComponent extends React.Component {

  render() (

    


    


  )

}



export default Dimensions()(MyComponent) // Enhanced component

```



```javascript

// ES5

var React = require('react')

var Dimensions = require('react-dimensions')



var MyComponent = React.createClass({

  render: function() {(

    


    


  )}

}



module.exports = Dimensions()(MyComponent) // Enhanced component

```



Returns **[function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** A higher-order component that can be

used to enhance a react component `Dimensions()(MyComponent)`



### getWrappedInstance()



Returns the underlying wrapped component instance.

Useful if you need to access a method or property of the component

passed to react-dimensions. Does not currently work for stateless function components see [#30](https://github.com/digidem/react-dimensions/issues/30)



Returns **[object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** The wrapped React component instance



## Live Example



Will open a browser window for localhost:9966



`npm i && npm i react react-dom && npm start`



## Tests



```sh

$ npm test

```