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index.tsx
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index.tsx
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/**
* Copyright 2021 Google LLC. All Rights Reserved.
*
* 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 {Loader, LoaderOptions} from '@googlemaps/js-api-loader';
import React, {ReactElement, ReactNode, useEffect, useState} from 'react';
export enum Status {
LOADING = 'LOADING',
FAILURE = 'FAILURE',
SUCCESS = 'SUCCESS',
}
/**
* The `WrapperProps` interface extends the `LoaderOptions` interface from
* [@googlemaps/js-api-loader](https://npmjs.com/package/@googlemaps/js-api-loader).
* See the reference documentation for
* [LoaderOptions](https://googlemaps.github.io/js-api-loader/interfaces/LoaderOptions.html)
* for a complete list of all props that are available.
*/
export interface WrapperProps extends LoaderOptions {
/**
* Children wrapped by the `<Wrapper>{elements}</Wrapper`.
*/
children?: ReactNode;
/**
* Render prop used to switch on the status.
*/
render?: (status: Status) => ReactElement;
/**
* Callback prop used to access `@googlemaps/js-api-loader` and `Status`.
*
* Note: The callback be executed multiple times in the lifecycle of the component.
*/
callback?: (status: Status, loader: Loader) => void;
}
/**
* A component to wrap the loading of the Google Maps JavaScript API.
*
* ```
* import { Wrapper } from '@googlemaps/react-wrapper';
*
* const MyApp = () => (
* <Wrapper apiKey={'YOUR_API_KEY'}>
* <MyMapComponent />
* </Wrapper>
* );
* ```
*
* @param props
*/
export const Wrapper = ({
children,
render,
callback,
...options
}: WrapperProps): ReactElement => {
const [status, setStatus] = useState(Status.LOADING);
useEffect(() => {
const loader = new Loader(options);
const setStatusAndExecuteCallback = (status: Status) => {
if (callback) callback(status, loader);
setStatus(status);
};
setStatusAndExecuteCallback(Status.LOADING);
loader.load().then(
() => setStatusAndExecuteCallback(Status.SUCCESS),
() => setStatusAndExecuteCallback(Status.FAILURE)
);
}, []);
if (status === Status.SUCCESS && children) return <>{children}</>;
if (render) return render(status);
return <></>;
};