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snackbarProvider.tsx
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snackbarProvider.tsx
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/*
* Copyright 2020 Google LLC
*
* 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
*
* https://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.
*/
/**
* External dependencies
*/
import { useCallback, useMemo, useState } from '@googleforcreators/react';
import { v4 as uuidv4 } from 'uuid';
import type { ReactNode } from 'react';
/**
* Internal dependencies
*/
import type { SnackbarNotification } from '../../components';
import Context from './context';
interface SnackbarProviderProps {
children: ReactNode;
placement?: 'bottom' | 'top';
}
function SnackbarProvider({
children,
placement = 'bottom',
}: SnackbarProviderProps) {
const [notifications, setNotifications] = useState<SnackbarNotification[]>(
[]
);
const remove = useCallback(
(
toRemove:
| Pick<SnackbarNotification, 'id'>
| Pick<SnackbarNotification, 'id'>[]
) => {
setNotifications((currentNotifications) =>
currentNotifications.filter((item) => {
if (Array.isArray(toRemove)) {
return !toRemove.find(({ id }) => id === item.id);
}
return item.id !== toRemove.id;
})
);
},
[]
);
const create = useCallback(
(notification: Omit<SnackbarNotification, 'id'>) => {
const newNotification = {
id: uuidv4(),
...notification,
};
// React may batch state updates, so use the setter that receives the
// previous state.
setNotifications((currentNotifications) => [
...currentNotifications,
newNotification,
]);
},
[]
);
const clear = useCallback(() => {
setNotifications([]);
}, []);
const state = useMemo(
() => ({
showSnackbar: create,
clearSnackbar: clear,
removeSnack: remove,
currentSnacks: notifications,
placement,
}),
[create, clear, remove, notifications, placement]
);
return <Context.Provider value={state}>{children}</Context.Provider>;
}
export default SnackbarProvider;