chinwagsocial/app/javascript/mastodon/features/ui/components/bundle.js
Eugen Rochko c20d096e6a
Show disappointed elephant if web UI crashes (#10275)
* Do not crash the whole UI when loading an invalid column

* Add error boundary component to catch Web UI crashes

* Add stack trace on supported browsers

* Add component stack info, pre-format everything for github

* Make “Reload” a clickable link that calls window.location.reload()

* Remove elephant friend from error boundary, make title stand out more

* Simplify error boundary to only a graphic
2019-03-15 05:35:45 +01:00

106 lines
2.4 KiB
JavaScript

import React from 'react';
import PropTypes from 'prop-types';
const emptyComponent = () => null;
const noop = () => { };
class Bundle extends React.PureComponent {
static propTypes = {
fetchComponent: PropTypes.func.isRequired,
loading: PropTypes.func,
error: PropTypes.func,
children: PropTypes.func.isRequired,
renderDelay: PropTypes.number,
onFetch: PropTypes.func,
onFetchSuccess: PropTypes.func,
onFetchFail: PropTypes.func,
}
static defaultProps = {
loading: emptyComponent,
error: emptyComponent,
renderDelay: 0,
onFetch: noop,
onFetchSuccess: noop,
onFetchFail: noop,
}
static cache = new Map
state = {
mod: undefined,
forceRender: false,
}
componentWillMount() {
this.load(this.props);
}
componentWillReceiveProps(nextProps) {
if (nextProps.fetchComponent !== this.props.fetchComponent) {
this.load(nextProps);
}
}
componentWillUnmount () {
if (this.timeout) {
clearTimeout(this.timeout);
}
}
load = (props) => {
const { fetchComponent, onFetch, onFetchSuccess, onFetchFail, renderDelay } = props || this.props;
const cachedMod = Bundle.cache.get(fetchComponent);
if (fetchComponent === undefined) {
this.setState({ mod: null });
return Promise.resolve();
}
onFetch();
if (cachedMod) {
this.setState({ mod: cachedMod.default });
onFetchSuccess();
return Promise.resolve();
}
this.setState({ mod: undefined });
if (renderDelay !== 0) {
this.timestamp = new Date();
this.timeout = setTimeout(() => this.setState({ forceRender: true }), renderDelay);
}
return fetchComponent()
.then((mod) => {
Bundle.cache.set(fetchComponent, mod);
this.setState({ mod: mod.default });
onFetchSuccess();
})
.catch((error) => {
this.setState({ mod: null });
onFetchFail(error);
});
}
render() {
const { loading: Loading, error: Error, children, renderDelay } = this.props;
const { mod, forceRender } = this.state;
const elapsed = this.timestamp ? (new Date() - this.timestamp) : renderDelay;
if (mod === undefined) {
return (elapsed >= renderDelay || forceRender) ? <Loading /> : null;
}
if (mod === null) {
return <Error onRetry={this.load} />;
}
return children(mod);
}
}
export default Bundle;