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Supported topic on send-receive publish data, fix parameter mapping for DataReceived event. #74

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Supported topic on send-receive publish data, fix parameter mapping for DataReceived event. #74

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a00aee4
Support topic and fix parameter mapping for DataReceived event
massimilianogaio Nov 1, 2025
df396d4
removed unused using
massimilianogaio Nov 1, 2025
ced9ea1
improved code readability
massimilianogaio Nov 1, 2025
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38 changes: 16 additions & 22 deletions Runtime/Scripts/Room/Participant/LocalParticipant.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -161,28 +161,22 @@ public LocalTrackPublication UnpublishTrack(MediaStreamTrack track, bool? stopOn
public JSPromise PublishData(byte[] data, bool reliable, string[] destinationIdentities, string topic)
{
return PublishData(data, 0, data.Length, reliable, destinationIdentities, topic);
}

public JSPromise PublishData(byte[] data, int offset, int size, bool reliable, string[] destinationIdentities, string topic)
{
JSArray<string> arr = null;
if (destinationIdentities != null)
arr = new JSArray<string>(destinationIdentities);

JSNative.PushData(data, offset, size);
JSNative.PushBoolean((bool)reliable);

if (destinationIdentities == null)
JSNative.PushUndefined();
else
JSNative.PushObject(arr.NativeHandle);

if(topic == null)
JSNative.PushUndefined();
else
JSNative.PushString(topic);

return Acquire<JSPromise>(JSNative.CallMethod(NativeHandle, "publishData"));
}

public JSPromise PublishData(byte[] data, int offset, int size, bool reliable, string[] destinationIdentities, string topic)
{
var options = new PublishDataOptions
{
Reliable = reliable,
DestinationIdentities = destinationIdentities,
Topic = topic
};

JSNative.PushData(data, offset, size);
JSNative.PushStruct(JsonConvert.SerializeObject(options, JSNative.JsonSettings));

var result = JSNative.CallMethod(NativeHandle, "publishData");
return Acquire<JSPromise>(result);
}

public void SetTrackSubscriptionPermissions(bool allParticipantsAllowed,
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13 changes: 13 additions & 0 deletions Runtime/Scripts/Room/Participant/PublishDataOptions.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
using Newtonsoft.Json;
namespace LiveKit
{
public struct PublishDataOptions
{
[JsonProperty("reliable")]
public bool Reliable;
[JsonProperty("destinationIdentities")]
public string[] DestinationIdentities;
[JsonProperty("topic")]
public string Topic;
}
}
11 changes: 11 additions & 0 deletions Runtime/Scripts/Room/Participant/PublishDataOptions.cs.meta
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15 changes: 10 additions & 5 deletions Runtime/Scripts/Room/Room.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ public class Room : JSEventEmitter<RoomEvent>, IDisposable
public delegate void ParticipantMetadataChangedDelegate(string metadata, Participant participant);
public delegate void ActiveSpeakersChangedDelegate(JSArray<Participant> speakers);
public delegate void RoomMetadataChangedDelegate(string metadata);
public delegate void DataReceivedDelegate(byte[] data, RemoteParticipant participant, DataPacketKind? kind);
public delegate void DataReceivedDelegate(byte[] data, RemoteParticipant participant, DataPacketKind? kind, string topic);
public delegate void ConnectionQualityChangedDelegate(ConnectionQuality quality, Participant participant);
public delegate void MediaDevicesErrorDelegate(JSError error);
public delegate void TrackStreamStateChangedDelegate(RemoteTrackPublication publication, TrackStreamState streamState, RemoteParticipant participant);
Expand Down Expand Up @@ -235,10 +235,15 @@ private static void EventReceived(IntPtr iptr)
var kindPtr = JSNative.ShiftStack();
DataPacketKind? kind = null;
if (JSNative.IsNumber(kindPtr))
kind = (DataPacketKind?) JSNative.GetNumber(kindPtr);

Log.Debug($"Room: Received DataReceived({data}, {participant?.Sid}, {kind})");
room.DataReceived?.Invoke(data.ToArray(), participant, kind);
kind = (DataPacketKind?) JSNative.GetNumber(kindPtr);

var topicPtr = JSNative.ShiftStack();
string topic = null;
if (!JSNative.IsUndefined(topicPtr) && JSNative.IsString(topicPtr))
topic = JSNative.GetString(topicPtr);

Log.Debug($"Room: Received DataReceived({data}, {participant?.Sid}, {kind} {topic})");
room.DataReceived?.Invoke(data.ToArray(), participant, kind, topic);
break;
}
case RoomEvent.ConnectionQualityChanged:
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