36 lines
1.4 KiB
TypeScript
36 lines
1.4 KiB
TypeScript
/*
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Copyright 2020 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 {useCallback, useState} from "react";
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import {MatrixClient} from "matrix-js-sdk/src/client";
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import {MatrixEvent} from "matrix-js-sdk/src/models/event";
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import {Room} from "matrix-js-sdk/src/models/room";
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import {useEventEmitter} from "./useEventEmitter";
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// Hook to simplify watching whether a Matrix room is encrypted, returns undefined if room is undefined
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export function useIsEncrypted(cli: MatrixClient, room?: Room): boolean | undefined {
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const [isEncrypted, setIsEncrypted] = useState(room ? cli.isRoomEncrypted(room.roomId) : undefined);
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const update = useCallback((event: MatrixEvent) => {
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if (room && event.getType() === "m.room.encryption") {
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setIsEncrypted(cli.isRoomEncrypted(room.roomId));
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}
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}, [cli, room]);
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useEventEmitter(room ? room.currentState : undefined, "RoomState.events", update);
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return isEncrypted;
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}
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