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Handle autoplay denials for remote call participants #20

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Merged
bm12 merged 1 commit into from
Sep 22, 2025
Merged

Handle autoplay denials for remote call participants #20

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203 changes: 180 additions & 23 deletions frontend/src/features/call/components/CallParticipantsGrid.tsx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import { useCallback } from 'react';
import { useCallback, useEffect, useRef, useState } from 'react';
import type { RefObject } from 'react';

import type { RemoteParticipant } from '../hooks/useCallPeers';
Expand All @@ -18,6 +18,118 @@ export const CallParticipantsGrid = ({
containerRef,
isFullscreen,
}: CallParticipantsGridProps) => {
const blockedElementsRef = useRef(new Set<HTMLVideoElement>());
const [autoplayBlocked, setAutoplayBlocked] = useState(false);

const isAutoplayDeniedError = (error: unknown): error is DOMException =>
error instanceof DOMException && error.name === 'NotAllowedError';

const updateAutoplayBlockedState = useCallback(() => {
setAutoplayBlocked(blockedElementsRef.current.size > 0);
}, []);

const attemptToPlay = useCallback(
(element: HTMLVideoElement) => {
let playPromise: Promise<void> | undefined;

try {
playPromise = element.play();
} catch (error) {
if (isAutoplayDeniedError(error)) {
blockedElementsRef.current.add(element);
updateAutoplayBlockedState();
return;
}

blockedElementsRef.current.delete(element);
updateAutoplayBlockedState();
return;
}

if (!playPromise) {
blockedElementsRef.current.delete(element);
updateAutoplayBlockedState();
return;
}

playPromise
.then(() => {
blockedElementsRef.current.delete(element);
updateAutoplayBlockedState();
})
.catch((error) => {
if (isAutoplayDeniedError(error)) {
blockedElementsRef.current.add(element);
updateAutoplayBlockedState();
return;
}

blockedElementsRef.current.delete(element);
updateAutoplayBlockedState();
});
},
[updateAutoplayBlockedState],
);

const retryBlockedElements = useCallback(() => {
const blockedElements = Array.from(blockedElementsRef.current);

blockedElements.forEach((element) => {
if (!element.isConnected) {
blockedElementsRef.current.delete(element);
return;
}

attemptToPlay(element);
});

updateAutoplayBlockedState();
}, [attemptToPlay, updateAutoplayBlockedState]);

useEffect(() => {
if (!autoplayBlocked) {
return;
}

if (typeof document === 'undefined') {
return;
}

const target = containerRef.current ?? document;

const handleInteraction = () => {
retryBlockedElements();
};

target.addEventListener('click', handleInteraction);
target.addEventListener('touchend', handleInteraction);

retryBlockedElements();

return () => {
target.removeEventListener('click', handleInteraction);
target.removeEventListener('touchend', handleInteraction);
};
}, [autoplayBlocked, containerRef, retryBlockedElements]);

const clearBlockedElementById = useCallback(
(participantId: string) => {
let removed = false;

blockedElementsRef.current.forEach((element) => {
if (element.dataset?.autoplayParticipantId === participantId) {
blockedElementsRef.current.delete(element);
removed = true;
}
});

if (removed) {
updateAutoplayBlockedState();
}
},
[updateAutoplayBlockedState],
);

const attachStreamToElement = useCallback(
(element: HTMLVideoElement | null, stream: MediaStream | null | undefined) => {
if (!element) {
Expand All @@ -30,18 +142,45 @@ export const CallParticipantsGrid = ({
if (stream && currentStream !== stream) {
element.srcObject = stream;
streamAttached = true;
} else if (!stream) {
blockedElementsRef.current.delete(element);
updateAutoplayBlockedState();
}

if ((streamAttached || element.paused) && element.srcObject) {
element.play().catch(() => undefined);
attemptToPlay(element);
}
},
[attemptToPlay, updateAutoplayBlockedState],
);

const handleRemoteVideoElement = useCallback(
(
element: HTMLVideoElement | null,
participantId: string,
stream: MediaStream | null | undefined,
) => {
if (!element) {
clearBlockedElementById(participantId);
return;
}

element.dataset.autoplayParticipantId = participantId;
attachStreamToElement(element, stream);
},
[],
[attachStreamToElement, clearBlockedElementById],
);

const handleLocalVideoRef = useCallback(
(element: HTMLVideoElement | null) => {
const previousElement = localVideoRef.current;
if (!element && previousElement) {
blockedElementsRef.current.delete(previousElement);
updateAutoplayBlockedState();
}

localVideoRef.current = element;

if (!element) {
return;
}
Expand All @@ -50,23 +189,32 @@ export const CallParticipantsGrid = ({
element.muted = true;
attachStreamToElement(element, stream);
},
[attachStreamToElement, localStreamRef, localVideoRef],
[attachStreamToElement, localStreamRef, localVideoRef, updateAutoplayBlockedState],
);

if (isFullscreen && remoteParticipants.length > 0) {
const [primaryParticipant, ...secondaryParticipants] = remoteParticipants;

return (
<div ref={containerRef} className="video-stage video-stage--fullscreen">
{autoplayBlocked && (
<button
type="button"
className="video-grid__autoplay-warning"
onClick={retryBlockedElements}
>
Нажмите, чтобы включить звук участников
</button>
)}
<div className="video-stage__primary">
<video
autoPlay
playsInline
ref={(element) => {
attachStreamToElement(element, primaryParticipant.stream);
}}
className="video-stage__primary-video"
/>
<video
autoPlay
playsInline
ref={(element) => {
handleRemoteVideoElement(element, primaryParticipant.id, primaryParticipant.stream);
}}
className="video-stage__primary-video"
/>
<span className="video-grid__label">{primaryParticipant.id.slice(0, 6)}</span>
</div>

Expand All @@ -83,16 +231,16 @@ export const CallParticipantsGrid = ({

{secondaryParticipants.length > 0 && (
<div className="video-stage__thumbnails">
{secondaryParticipants.map((participant) => (
<div key={participant.id} className="video-stage__thumbnail">
<video
autoPlay
playsInline
ref={(element) => {
attachStreamToElement(element, participant.stream);
}}
className="video-stage__thumbnail-video"
/>
{secondaryParticipants.map((participant) => (
<div key={participant.id} className="video-stage__thumbnail">
<video
autoPlay
playsInline
ref={(element) => {
handleRemoteVideoElement(element, participant.id, participant.stream);
}}
className="video-stage__thumbnail-video"
/>
<span className="video-grid__label">{participant.id.slice(0, 6)}</span>
</div>
))}
Expand All @@ -104,6 +252,15 @@ export const CallParticipantsGrid = ({

return (
<div ref={containerRef} className="video-grid">
{autoplayBlocked && (
<button
type="button"
className="video-grid__autoplay-warning"
onClick={retryBlockedElements}
>
Нажмите, чтобы включить звук участников
</button>
)}
<div className="video-grid__item">
<video ref={handleLocalVideoRef} autoPlay playsInline muted className="video-grid__video" />
<span className="video-grid__label">Вы</span>
Expand All @@ -114,7 +271,7 @@ export const CallParticipantsGrid = ({
autoPlay
playsInline
ref={(element) => {
attachStreamToElement(element, participant.stream);
handleRemoteVideoElement(element, participant.id, participant.stream);
}}
/>
<span className="video-grid__label">{participant.id.slice(0, 6)}</span>
Expand Down
31 changes: 31 additions & 0 deletions frontend/src/index.css
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ a:hover {
grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
gap: 16px;
width: 100%;
position: relative;
}

.video-grid video {
Expand Down Expand Up @@ -128,6 +129,36 @@ a:hover {
font-size: 12px;
}

.video-grid__autoplay-warning {
position: absolute;
top: 16px;
left: 50%;
transform: translateX(-50%);
z-index: 5;
background: rgba(0, 0, 0, 0.75);
color: #fff;
padding: 10px 20px;
border: 1px solid rgba(255, 255, 255, 0.25);
border-radius: 999px;
font-size: 14px;
line-height: 1.4;
cursor: pointer;
box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
backdrop-filter: blur(12px);
transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.video-grid__autoplay-warning:hover {
background: rgba(0, 0, 0, 0.85);
border-color: rgba(255, 255, 255, 0.35);
}

.video-grid__autoplay-warning:focus-visible {
outline: 2px solid #1677ff;
outline-offset: 2px;
transform: translateX(-50%) scale(1.02);
}

.video-stage {
position: relative;
width: 100%;
Expand Down