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cinny/src/app/hooks/useScreenshareNotices.ts
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fix(calls): no "the shared window was closed" toast when an admin turns sharing off (#297)
When a room admin turned off Allow Screen Sharing, the sharer got two
toasts: the correct "turned off by a room admin" and the fork's
"ended" notice, "the shared window was closed", which was wrong. Skip
the ended notice while the room policy forbids sharing.

Fixes #297

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5
2026-10-17 20:55:05 -04:00

64 lines
2.4 KiB
TypeScript

import { useEffect, useRef } from 'react';
import { useSetAtom } from 'jotai';
import { Icons } from 'folds';
import { CallEmbed } from '../plugins/call';
import { toastQueueAtom } from '../state/toast';
import { useRoomCallPolicy } from './useRoomCallPolicy';
export type ScreenshareNoticeKind = 'ended' | 'no-frames' | 'alone';
export const describeScreenshareNotice = (kind: ScreenshareNoticeKind): string | undefined => {
switch (kind) {
case 'ended':
return 'Screen sharing stopped — the shared window was closed.';
case 'no-frames':
return 'Your screen share is showing nothing — the shared window may be minimised or hidden.';
case 'alone':
return "Still sharing? You've been sharing your screen for 30 minutes with nobody else in the call.";
default:
return undefined;
}
};
/** Pure: a policy-forced stop is explained by its own toast (#297). */
export const shouldShowScreenshareNotice = (
kind: ScreenshareNoticeKind,
allowScreenshare: boolean,
): boolean => !(kind === 'ended' && !allowScreenshare);
/**
* [Gitea EC#39] Toast the fork's io.lotus.screenshare_notice: shared window
* closed, no frames for a while, or a long share with nobody watching.
*/
export function useScreenshareNotices(embed: CallEmbed): void {
const setToast = useSetAtom(toastQueueAtom);
// [Gitea #297] When a room admin turns screen sharing off, the share ends
// and the fork reports `ended` ("the shared window was closed"), which is
// wrong; useCallPolicyRevokedToast already says what happened.
const { allowScreenshare } = useRoomCallPolicy(embed.room);
const allowRef = useRef(allowScreenshare);
allowRef.current = allowScreenshare;
useEffect(
() =>
embed.listenAction<{ data?: { kind?: ScreenshareNoticeKind } }>(
'io.lotus.screenshare_notice',
(evt) => {
const kind = evt.detail?.data?.kind as ScreenshareNoticeKind;
if (!shouldShowScreenshareNotice(kind, allowRef.current)) return;
const body = describeScreenshareNotice(kind);
if (!body) return;
setToast({
id: `screenshare-${evt.detail?.data?.kind}-${Date.now()}`,
iconSrc: Icons.ScreenShare,
displayName: 'Screen share',
body,
roomName: embed.room.name ?? 'Voice call',
roomId: embed.roomId,
sticky: evt.detail?.data?.kind === 'alone',
});
},
),
[embed, setToast],
);
}