63 lines
1.8 KiB
TypeScript
63 lines
1.8 KiB
TypeScript
/*
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Copyright 2023, 2024 New Vector Ltd.
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SPDX-License-Identifier: AGPL-3.0-only
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Please see LICENSE in the repository root for full details.
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*/
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import {
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MatrixRTCSession,
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MatrixRTCSessionEvent,
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} from "matrix-js-sdk/src/matrixrtc/MatrixRTCSession";
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import { useCallback, useEffect, useState } from "react";
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import { deepCompare } from "matrix-js-sdk/src/utils";
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import { logger } from "matrix-js-sdk/src/logger";
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import {
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LivekitFocus,
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isLivekitFocus,
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} from "matrix-js-sdk/src/matrixrtc/LivekitFocus";
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/**
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* Gets the currently active (livekit) focus for a MatrixRTC session
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* This logic is specific to livekit foci where the whole call must use one
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* and the same focus.
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*/
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export function useActiveLivekitFocus(
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rtcSession: MatrixRTCSession,
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): LivekitFocus | undefined {
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const [activeFocus, setActiveFocus] = useState(() => {
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const f = rtcSession.getActiveFocus();
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// Only handle foci with type="livekit" for now.
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return !!f && isLivekitFocus(f) ? f : undefined;
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});
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const onMembershipsChanged = useCallback(() => {
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const newActiveFocus = rtcSession.getActiveFocus();
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if (!!newActiveFocus && !isLivekitFocus(newActiveFocus)) return;
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if (!deepCompare(activeFocus, newActiveFocus)) {
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const oldestMembership = rtcSession.getOldestMembership();
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logger.warn(
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`Got new active focus from membership: ${oldestMembership?.sender}/${oldestMembership?.deviceId}.
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Updating focus (focus switch) from ${activeFocus} to ${newActiveFocus}`,
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);
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setActiveFocus(newActiveFocus);
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}
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}, [activeFocus, rtcSession]);
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useEffect(() => {
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rtcSession.on(
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MatrixRTCSessionEvent.MembershipsChanged,
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onMembershipsChanged,
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);
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return (): void => {
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rtcSession.off(
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MatrixRTCSessionEvent.MembershipsChanged,
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onMembershipsChanged,
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);
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};
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});
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return activeFocus;
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}
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