[stable-24.0] fix: send local state when ICE connects instead of at participant-add time#6241
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… time When a participant was added, LocalStateBroadcasterNoMcu.handleCallParticipantAdded was called with a snapshot of the current ParticipantUiState. At that moment the PeerConnectionWrapper did not yet exist, so the data channel was unavailable and all state messages (audioOn/videoOn/speaking) were silently dropped. Subsequent ICE transitions were never observed, so the remote participant never learned the local audio/video state. Fix: LocalStateBroadcasterNoMcu now accepts a live StateFlow<ParticipantUiState> and collects it internally via IceConnectionStateObserver. State is sent on every false→true transition of isConnected, i.e. exactly when the data channel becomes ready. CallActivity passes the live StateFlow instead of the snapshot value. A non-abstract default overload is added to LocalStateBroadcaster so that LocalStateBroadcasterMcu continues to work unchanged. Tests: - LocalStateBroadcasterNoMcuTest: drives state via MutableStateFlow; fails without the fix because updates after handleCallParticipantAdded are never seen - CallParticipantStateBroadcastIntegrationTest: full pipeline test through CallViewModel → ParticipantHandler → LocalStateBroadcasterNoMcu with a mocked PeerConnectionWrapper driving ICE transitions - CallActivityAddParticipantTest: Robolectric test verifying that CallActivity passes the live StateFlow object (not a snapshot) to the broadcaster Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: Alain Lauzon <alauzon@alainlauzon.com>
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APK file: https://github.com/nextcloud/talk-android/actions/runs/26620376760/artifacts/7284003331 |
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Backport of PR #6086