feat(mobile): add cast support (#18341)

* initial cast framework complete and mocked cast dialog working * wip casting * casting works! just need to add session key check and remote video controls * cleanup of classes * add session expiration checks * cast dialog now shows connected device at top of list with a list header. Discovered devices are also cached for app session. * cast video player finalized * show fullsize assets on casting * translation already happens on the text element * remove prints * fix lintings * code review changes from @shenlong-tanwen * fix connect method override * fix alphabetization * remove important * filter chromecast audio devices * fix some disconnect command ordering issues and unawaited futures * remove prints * only disconnect if we are connected * don't try to reconnect if its the current device * add cast button to top bar * format sessions api * more formatting issues fixed * add snack bar to tell user that we cannot cast an asset that is not uploaded to server * make casting icon change to primary color when casting is active * only show casting snackbar if we are casting * dont show cast button if asset is remote and we are not casting * stop playing media if we seek to an asset that is not remote * remove https check since it works with local http IP addresses * remove unneeded imports * fix recasting when socket closes * fix info plist formatting * only show cast button if there is an active websocket connection (ie the server is accessible) * add device capability bitmask checks * small comment about bitmask
2025-06-08 21:55:23 -05:00
parent e88eb44aba
commit 5574b2dd39
24 changed files with 1101 additions and 41 deletions
@@ -0,0 +1,75 @@
+import 'package:cast/device.dart';
+import 'package:cast/session.dart';
+import 'package:cast/session_manager.dart';
+import 'package:cast/discovery_service.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+final gCastRepositoryProvider = Provider((_) {
+  return GCastRepository();
+});
+
+class GCastRepository {
+  CastSession? _castSession;
+
+  void Function(CastSessionState)? onCastStatus;
+  void Function(Map<String, dynamic>)? onCastMessage;
+
+  Map<String, dynamic>? _receiverStatus;
+
+  GCastRepository();
+
+  Future<void> connect(CastDevice device) async {
+    _castSession = await CastSessionManager().startSession(device);
+
+    _castSession?.stateStream.listen((state) {
+      onCastStatus?.call(state);
+    });
+
+    _castSession?.messageStream.listen((message) {
+      onCastMessage?.call(message);
+      if (message['type'] == 'RECEIVER_STATUS') {
+        _receiverStatus = message;
+      }
+    });
+
+    // open the default receiver
+    sendMessage(CastSession.kNamespaceReceiver, {
+      'type': 'LAUNCH',
+      'appId': 'CC1AD845',
+    });
+  }
+
+  Future<void> disconnect() async {
+    final sessionID = getSessionId();
+
+    sendMessage(CastSession.kNamespaceReceiver, {
+      'type': "STOP",
+      "sessionId": sessionID,
+    });
+
+    // wait 500ms to ensure the stop command is processed
+    await Future.delayed(const Duration(milliseconds: 500));
+
+    await _castSession?.close();
+  }
+
+  String? getSessionId() {
+    if (_receiverStatus == null) {
+      return null;
+    }
+    return _receiverStatus!['status']['applications'][0]['sessionId'];
+  }
+
+  void sendMessage(String namespace, Map<String, dynamic> message) {
+    if (_castSession == null) {
+      throw Exception("Cast session is not established");
+    }
+
+    _castSession!.sendMessage(namespace, message);
+  }
+
+  Future<List<CastDevice>> listDestinations() async {
+    return await CastDiscoveryService()
+        .search(timeout: const Duration(seconds: 3));
+  }
+}