WIP refactor for removing m.call events

src/useMatrixRTCSessionMemberships.ts

@@ -0,0 +1,48 @@
+/*
+Copyright 2023 New Vector Ltd
+
+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
+
+    http://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.
+*/
+
+import { CallMembership } from "matrix-js-sdk/src/matrixrtc/CallMembership";
+import {
+  MatrixRTCSession,
+  MatrixRTCSessionEvent,
+} from "matrix-js-sdk/src/matrixrtc/MatrixRTCSession";
+import { useCallback, useEffect, useState } from "react";
+
+export function useMatrixRTCSessionMemberships(
+  rtcSession: MatrixRTCSession
+): CallMembership[] {
+  const [memberships, setMemberships] = useState(rtcSession.memberships);
+
+  const onMembershipsChanged = useCallback(() => {
+    setMemberships(rtcSession.memberships);
+  }, [rtcSession]);
+
+  useEffect(() => {
+    rtcSession.on(
+      MatrixRTCSessionEvent.MembershipsChanged,
+      onMembershipsChanged
+    );
+
+    return () => {
+      rtcSession.off(
+        MatrixRTCSessionEvent.MembershipsChanged,
+        onMembershipsChanged
+      );
+    };
+  }, [rtcSession, onMembershipsChanged]);
+
+  return memberships;
+}