Add "controllers" for scanning

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/control/scanner_controller.dart b/lib/control/scanner_controller.dart
new file mode 100644
index 0000000..75711d6
--- /dev/null
+++ b/lib/control/scanner_controller.dart
@@ -0,0 +1,16 @@
+import 'dart:async';
+
+import 'package:badge/model/device.dart';
+
+/// Represents the scan status.
+enum ScanStatus { idle, scanning, finished, error }
+
+/// Represents a scanner controller.
+/// It emits devices which may be connected to later.
+abstract class ScannerController {
+  Stream<List<Device>> get scanResultsStream;
+  Stream<ScanStatus> get statusStream;
+  Future<void> startScan({Duration timeout});
+  Future<void> stopScan();
+  void dispose();
+}