From 7364fc49a8606983c5016c59044c0a5d28287664 Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre.git@communiquons.org>
Date: Mon, 20 Apr 2020 17:53:31 +0200
Subject: [PATCH] Can send ice candidates to server

---
 lib/helpers/calls_helper.dart   | 11 +++++++++++
 lib/ui/screens/call_screen.dart |  4 ++++
 2 files changed, 15 insertions(+)

diff --git a/lib/helpers/calls_helper.dart b/lib/helpers/calls_helper.dart
index 24270e5..b9dcc98 100644
--- a/lib/helpers/calls_helper.dart
+++ b/lib/helpers/calls_helper.dart
@@ -4,6 +4,7 @@ import 'package:comunic/helpers/websocket_helper.dart';
 import 'package:comunic/lists/call_members_list.dart';
 import 'package:comunic/models/call_config.dart';
 import 'package:comunic/models/call_member.dart';
+import 'package:flutter_webrtc/rtc_ice_candidate.dart';
 import 'package:flutter_webrtc/rtc_session_description.dart';
 
 /// Calls helper
@@ -51,4 +52,14 @@ class CallsHelper {
         "type": "SDP",
         "data": jsonEncode(sdp.toMap())
       });
+
+  /// Send an IceCandidate
+  static Future<void> sendIceCandidate(
+          int callID, int peerID, RTCIceCandidate candidate) async =>
+      await ws("calls/signal", {
+        "callID": callID,
+        "peerID": peerID,
+        "type": "CANDIDATE",
+        "data": jsonEncode(candidate)
+      });
 }
diff --git a/lib/ui/screens/call_screen.dart b/lib/ui/screens/call_screen.dart
index 538bfb6..6268d41 100644
--- a/lib/ui/screens/call_screen.dart
+++ b/lib/ui/screens/call_screen.dart
@@ -168,6 +168,10 @@ class _CallScreenState extends SafeState<CallScreen> {
 
       _peersConnections[memberID] = peerConnection;
 
+      // Register callbacks
+      peerConnection.onIceCandidate =
+          (c) => CallsHelper.sendIceCandidate(convID, memberID, c);
+
       // Request an offer to establish a peer connection
       await CallsHelper.requestOffer(convID, memberID);
     } catch (e, stack) {