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Merge pull request #2286 from robintown/fix-holds

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Fix participants disappearing during focus switch (probably)
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Robin
2024-04-10 09:58:08 -04:00
committed by GitHub
parent 3c3150a6b6 5121b956ca
commit 708cb18332
1 changed files with 4 additions and 5 deletions
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9
src/state/useObservable.ts
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@@ -1,5 +1,5 @@
/* /*
Copyright 2023 New Vector Ltd Copyright 2023-2024 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License"); Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. you may not use this file except in compliance with the License.
@@ -14,18 +14,17 @@ See the License for the specific language governing permissions and
limitations under the License. limitations under the License.
*/ */
import { useEffect, useRef } from "react"; import { useRef } from "react";
import { BehaviorSubject, Observable } from "rxjs"; import { BehaviorSubject, Observable } from "rxjs";
/** /**
* React hook that creates an Observable from a changing value. The Observable * React hook that creates an Observable from a changing value. The Observable
* replays its current value upon subscription, emits whenever the value * replays its current value upon subscription and emits whenever the value
* changes, and completes when the component is unmounted. * changes.
*/ */
export function useObservable<T>(value: T): Observable<T> { export function useObservable<T>(value: T): Observable<T> {
const subject = useRef<BehaviorSubject<T>>(); const subject = useRef<BehaviorSubject<T>>();
subject.current ??= new BehaviorSubject(value); subject.current ??= new BehaviorSubject(value);
if (value !== subject.current.value) subject.current.next(value); if (value !== subject.current.value) subject.current.next(value);
useEffect(() => subject.current!.complete(), []);
return subject.current; return subject.current;
} }