provide the current torch mode instead of `hasTorch` when the camera starts

@@ -246,7 +246,9 @@ class MethodChannelMobileScanner extends MobileScannerPlatform {
     _textureId = textureId;
 
     final int? numberOfCameras = startResult['numberOfCameras'] as int?;
-    final bool hasTorch = startResult['torchable'] as bool? ?? false;
+    final TorchState currentTorchState = TorchState.fromRawValue(
+      startResult['currentTorchState'] as int? ?? -1,
+    );
 
     final Map<Object?, Object?>? sizeInfo =
         startResult['size'] as Map<Object?, Object?>?;
@@ -262,7 +264,7 @@ class MethodChannelMobileScanner extends MobileScannerPlatform {
     }
 
     return MobileScannerViewAttributes(
-      hasTorch: hasTorch,
+      currentTorchMode: currentTorchState,
       numberOfCameras: numberOfCameras,
       size: size,
     );

@@ -281,9 +281,9 @@ class MobileScannerController extends ValueNotifier<MobileScannerState> {
           isInitialized: true,
           isRunning: true,
           size: viewAttributes.size,
-          // If the device has a flashlight, let the platform update the torch state.
-          // If it does not have one, provide the unavailable state directly.
-          torchState: viewAttributes.hasTorch ? null : TorchState.unavailable,
+          // Provide the current torch state.
+          // Updates are provided by the `torchStateStream`.
+          torchState: viewAttributes.currentTorchMode,
         );
       }
     } on MobileScannerException catch (error) {

 import 'dart:ui';
 
+import 'package:mobile_scanner/src/enums/torch_state.dart';
+
 /// This class defines the attributes for the mobile scanner view.
 class MobileScannerViewAttributes {
   const MobileScannerViewAttributes({
-    required this.hasTorch,
+    required this.currentTorchMode,
     this.numberOfCameras,
     required this.size,
   });
 
-  /// Whether the current active camera has a torch.
-  final bool hasTorch;
+  /// The current torch state of the active camera.
+  final TorchState currentTorchMode;
 
   /// The number of available cameras.
   final int? numberOfCameras;

@@ -346,7 +346,9 @@ class MobileScannerWeb extends MobileScannerPlatform {
       }
 
       return MobileScannerViewAttributes(
-        hasTorch: hasTorch,
+        // The torch of a media stream is not available for video tracks.
+        // See https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints#instance_properties_of_video_tracks
+        currentTorchMode: TorchState.unavailable,
         size: _barcodeReader?.videoSize ?? Size.zero,
       );
     } catch (error, stackTrace) {