41 lines
1.5 KiB
TypeScript
41 lines
1.5 KiB
TypeScript
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/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { useState } from "react";
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const favouriteMessageIds = JSON.parse(
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localStorage?.getItem("io_element_favouriteMessages")?? "[]") as string[];
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export default function useFavouriteMessages() {
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const [, setX] = useState<string[]>();
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//checks if an id already exist
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const isFavourite = (eventId: string): boolean => favouriteMessageIds.includes(eventId);
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const toggleFavourite = (eventId: string) => {
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isFavourite(eventId) ? favouriteMessageIds.splice(favouriteMessageIds.indexOf(eventId), 1)
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: favouriteMessageIds.push(eventId);
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//update the local storage
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localStorage.setItem('io_element_favouriteMessages', JSON.stringify(favouriteMessageIds));
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// This forces a re-render to account for changes in appearance in real-time when the favourite button is toggled
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setX([]);
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};
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return { isFavourite, toggleFavourite };
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}
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