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import React, {Component} from 'react';
import EventListener from 'react-event-listener';
export const SMALL = 1;
export const MEDIUM = 2;
export const LARGE = 3;
export default function withWidth(options = {}) {
const {
largeWidth = 992,
mediumWidth = 768,
resizeInterval = 166, // Corresponds to 10 frames at 60 Hz.
} = options;
return (MyComponent) => {
return class WithWidth extends Component {
state = {
width: null,
};
componentDidMount() {
this.updateWidth();
}
componentWillUnmount() {
clearTimeout(this.deferTimer);
}
handleResize = () => {
clearTimeout(this.deferTimer);
this.deferTimer = setTimeout(() => {
this.updateWidth();
}, resizeInterval);
};
updateWidth() {
const innerWidth = window.innerWidth;
let width;
if (innerWidth >= largeWidth) {
width = LARGE;
} else if (innerWidth >= mediumWidth) {
width = MEDIUM;
} else { // innerWidth < 768
width = SMALL;
}
if (width !== this.state.width) {
this.setState({
width: width,
});
}
}
render() {
const width = this.state.width;
/**
* When rendering the component on the server,
* we have no idea about the screen width.
* In order to prevent blinks and help the reconciliation
* we are not rendering the component.
*
* A better alternative would be to send client hints.
* But the browser support of this API is low:
* http://caniuse.com/#search=client%20hint
*/
if (width === null) {
return null;
}
return (
<EventListener target="window" onResize={this.handleResize}>
<MyComponent
width={width}
{...this.props}
/>
</EventListener>
);
}
};
};
}
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