element-web/src/components/views/elements/ErrorBoundary.tsx

/*
Copyright 2019 - 2021 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import React, { ErrorInfo, ReactNode } from "react";
import { logger } from "matrix-js-sdk/src/logger";

import { _t } from "../../../languageHandler";
import { MatrixClientPeg } from "../../../MatrixClientPeg";
import PlatformPeg from "../../../PlatformPeg";
import Modal from "../../../Modal";
import SdkConfig from "../../../SdkConfig";
import BugReportDialog from "../dialogs/BugReportDialog";
import AccessibleButton from "./AccessibleButton";

interface Props {
    children: ReactNode;
}

interface IState {
    error?: Error;
}

/**
 * This error boundary component can be used to wrap large content areas and
 * catch exceptions during rendering in the component tree below them.
 */
export default class ErrorBoundary extends React.PureComponent<Props, IState> {
    public constructor(props: Props) {
        super(props);

        this.state = {};
    }

    public static getDerivedStateFromError(error: Error): Partial<IState> {
        // Side effects are not permitted here, so we only update the state so
        // that the next render shows an error message.
        return { error };
    }

    public componentDidCatch(error: Error, { componentStack }: ErrorInfo): void {
        // Browser consoles are better at formatting output when native errors are passed
        // in their own `console.error` invocation.
        logger.error(error);
        logger.error("The above error occurred while React was rendering the following components:", componentStack);
    }

    private onClearCacheAndReload = (): void => {
        if (!PlatformPeg.get()) return;

        MatrixClientPeg.safeGet().stopClient();
        MatrixClientPeg.safeGet()
            .store.deleteAllData()
            .then(() => {
                PlatformPeg.get()?.reload();
            });
    };

    private onBugReport = (): void => {
        Modal.createDialog(BugReportDialog, {
            label: "react-soft-crash",
            error: this.state.error,
        });
    };

    public render(): ReactNode {
        if (this.state.error) {
            const newIssueUrl = SdkConfig.get().feedback.new_issue_url;

            let bugReportSection;
            if (SdkConfig.get().bug_report_endpoint_url) {
                bugReportSection = (
                    <React.Fragment>
                        <p>
                            {_t(
                                "bug_reporting|create_new_issue",
                                {},
                                {
                                    newIssueLink: (sub) => {
                                        return (
                                            <a target="_blank" rel="noreferrer noopener" href={newIssueUrl}>
                                                {sub}
                                            </a>
                                        );
                                    },
                                },
                            )}
                        </p>
                        <p>
                            {_t("bug_reporting|introduction")}
                            &nbsp;
                            {_t("bug_reporting|description")}
                        </p>
                        <AccessibleButton onClick={this.onBugReport} kind="primary">
                            {_t("bug_reporting|submit_debug_logs")}
                        </AccessibleButton>
                    </React.Fragment>
                );
            }

            let clearCacheButton: JSX.Element | undefined;
            // we only show this button if there is an initialised MatrixClient otherwise we can't clear the cache
            if (MatrixClientPeg.get()) {
                clearCacheButton = (
                    <AccessibleButton onClick={this.onClearCacheAndReload} kind="danger">
                        {_t("setting|help_about|clear_cache_reload")}
                    </AccessibleButton>
                );
            }

            return (
                <div className="mx_ErrorBoundary">
                    <div className="mx_ErrorBoundary_body">
                        <h1>{_t("error|something_went_wrong")}</h1>
                        {bugReportSection}
                        {clearCacheButton}
                    </div>
                </div>
            );
        }

        return this.props.children;
    }
}