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/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2022 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import Logger from "@utils/Logger";
import { Margins } from "@utils/margins";
import { LazyComponent } from "@utils/misc";
import { React } from "@webpack/common";
import { ErrorCard } from "./ErrorCard";
interface Props<T = any> {
/** Render nothing if an error occurs */
noop?: boolean;
/** Fallback component to render if an error occurs */
fallback?: React.ComponentType<React.PropsWithChildren<{ error: any; message: string; stack: string; }>>;
/** called when an error occurs. The props property is only available if using .wrap */
onError?(data: { error: Error, errorInfo: React.ErrorInfo, props: T; }): void;
/** Custom error message */
message?: string;
/** The props passed to the wrapped component. Only used by wrap */
wrappedProps?: T;
}
const color = "#e78284";
const logger = new Logger("React ErrorBoundary", color);
const NO_ERROR = {};
// We might want to import this in a place where React isn't ready yet.
// Thus, wrap in a LazyComponent
const ErrorBoundary = LazyComponent(() => {
return class ErrorBoundary extends React.PureComponent<React.PropsWithChildren<Props>> {
state = {
error: NO_ERROR as any,
stack: "",
message: ""
};
static getDerivedStateFromError(error: any) {
let stack = error?.stack ?? "";
let message = error?.message || String(error);
if (error instanceof Error && stack) {
const eolIdx = stack.indexOf("\n");
if (eolIdx !== -1) {
message = stack.slice(0, eolIdx);
stack = stack.slice(eolIdx + 1).replace(/https:\/\/\S+\/assets\//g, "");
}
}
return { error, stack, message };
}
componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
this.props.onError?.({ error, errorInfo, props: this.props.wrappedProps });
logger.error("A component threw an Error\n", error);
logger.error("Component Stack", errorInfo.componentStack);
}
render() {
if (this.state.error === NO_ERROR) return this.props.children;
if (this.props.noop) return null;
if (this.props.fallback)
return <this.props.fallback
children={this.props.children}
{...this.state}
/>;
const msg = this.props.message || "An error occurred while rendering this Component. More info can be found below and in your console.";
return (
<ErrorCard style={{ overflow: "hidden" }}>
<h1>Oh no!</h1>
<p>{msg}</p>
<code>
{this.state.message}
{!!this.state.stack && (
<pre className={Margins.top8}>
{this.state.stack}
</pre>
)}
</code>
</ErrorCard>
);
}
};
}) as
React.ComponentType<React.PropsWithChildren<Props>> & {
wrap<T extends object = any>(Component: React.ComponentType<T>, errorBoundaryProps?: Omit<Props<T>, "wrappedProps">): React.FunctionComponent<T>;
};
ErrorBoundary.wrap = (Component, errorBoundaryProps) => props => (
<ErrorBoundary {...errorBoundaryProps} wrappedProps={props}>
<Component {...props} />
</ErrorBoundary>
);
export default ErrorBoundary;
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