Package Exports

react-visibility-sensor

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (react-visibility-sensor) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

React Visibility Sensor

Sensor component for React that notifies you when it goes in or out of the window viewport.

Install

npm install react-visibility-sensor

Example

View the example

To run the example locally:

npm run build-example
open example/index.html in a browser

General usage goes something like:

function render () {
  var VisibilitySensor = require('react-visibility-sensor');

  var onChange = function (isVisible) {
    console.log('Element is now %s', isVisible ? 'visible' : 'hidden');
  };

  return (
    <VisibilitySensor onChange={onChange} />
  );
}

Props

onChange: callback for whenever the element changes from being within the window viewport or not. Function is called with 1 argument (isVisible: boolean)
active: (default true) boolean flag for enabling / disabling the sensor. When active !== true the sensor will not fire the onChange callback.
delay: (default 1000) integer, number of milliseconds between checking the element's position in relation the the window viewport. Making this number too low will have a negative impact on performance.
containment: (optional) element to use as a viewport when checking visibility. Default behaviour is to use the browser window as viewport.
className: (optional) className for the sensor element.
style: (optional) style object for the sensor element.

Thanks

Special thanks to contributors:

License

MIT