41 lines
1.0 KiB
TypeScript
41 lines
1.0 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { useEffect } from 'react';
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import { usePrevious } from './usePrevious';
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type RemoteParticipant = {
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hasRemoteVideo: boolean;
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presenting: boolean;
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title: string;
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uuid?: string;
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};
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export function useActivateSpeakerViewOnPresenting({
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remoteParticipants,
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switchToPresentationView,
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switchFromPresentationView,
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}: {
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remoteParticipants: ReadonlyArray<RemoteParticipant>;
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switchToPresentationView: () => void;
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switchFromPresentationView: () => void;
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}): void {
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const presenterUuid = remoteParticipants.find(
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participant => participant.presenting
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)?.uuid;
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const prevPresenterUuid = usePrevious(presenterUuid, presenterUuid);
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useEffect(() => {
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if (prevPresenterUuid !== presenterUuid && presenterUuid) {
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switchToPresentationView();
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} else if (prevPresenterUuid && !presenterUuid) {
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switchFromPresentationView();
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}
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}, [
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presenterUuid,
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prevPresenterUuid,
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switchToPresentationView,
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switchFromPresentationView,
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]);
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}
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