diff options
Diffstat (limited to 'server/sonar-web/src/main/js/components/lazyLoadComponent.tsx')
-rw-r--r-- | server/sonar-web/src/main/js/components/lazyLoadComponent.tsx | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/server/sonar-web/src/main/js/components/lazyLoadComponent.tsx b/server/sonar-web/src/main/js/components/lazyLoadComponent.tsx new file mode 100644 index 00000000000..d45577895dc --- /dev/null +++ b/server/sonar-web/src/main/js/components/lazyLoadComponent.tsx @@ -0,0 +1,73 @@ +/* + * SonarQube + * Copyright (C) 2009-2021 SonarSource SA + * mailto:info AT sonarsource DOT com + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +import * as React from 'react'; +import { Alert } from '../components/ui/Alert'; +import { IS_SSR } from '../helpers/init'; +import { translate } from '../helpers/l10n'; +import { requestTryAndRepeatUntil } from '../helpers/request'; + +export function lazyLoadComponent<T extends React.ComponentType<any>>( + factory: () => Promise<{ default: T }>, + displayName?: string +) { + const LazyComponent = React.lazy(() => + requestTryAndRepeatUntil(factory, { max: 2, slowThreshold: 2 }, () => true) + ); + + function LazyComponentWrapper(props: React.ComponentProps<T>) { + if (IS_SSR) { + return null; + } + return ( + <LazyErrorBoundary> + <React.Suspense fallback={null}> + <LazyComponent {...props} /> + </React.Suspense> + </LazyErrorBoundary> + ); + } + + LazyComponentWrapper.displayName = displayName; + return LazyComponentWrapper; +} + +interface ErrorBoundaryProps { + children: React.ReactNode; +} + +interface ErrorBoundaryState { + hasError: boolean; +} + +export class LazyErrorBoundary extends React.Component<ErrorBoundaryProps, ErrorBoundaryState> { + state: ErrorBoundaryState = { hasError: false }; + + static getDerivedStateFromError() { + // Update state so the next render will show the fallback UI. + return { hasError: true }; + } + + render() { + if (this.state.hasError) { + return <Alert variant="error">{translate('default_error_message')}</Alert>; + } + return this.props.children; + } +} |