feat: add media camera error codes

packages/camera/camera_web/lib/src/types/camera_error_code.dart

@@ -0,0 +1,71 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:html' as html;
+
+/// Error codes that may occur during the camera initialization,
+/// configuration or video streaming.
+class CameraErrorCode {
+  const CameraErrorCode._(this._type);
+
+  final String _type;
+
+  @override
+  String toString() => _type;
+
+  /// The camera is not supported.
+  static const CameraErrorCode notSupported =
+      CameraErrorCode._('cameraNotSupported');
+
+  /// The camera is not found.
+  static const CameraErrorCode notFound = CameraErrorCode._('cameraNotFound');
+
+  /// The camera is not readable.
+  static const CameraErrorCode notReadable =
+      CameraErrorCode._('cameraNotReadable');
+
+  /// The camera options are impossible to satisfy.
+  static const CameraErrorCode overconstrained =
+      CameraErrorCode._('cameraOverconstrained');
+
+  /// The camera cannot be used or the permission
+  /// to access the camera is not granted.
+  static const CameraErrorCode permissionDenied =
+      CameraErrorCode._('cameraPermission');
+
+  /// The camera options are incorrect or attempted
+  /// to access the media input from an insecure context.
+  static const CameraErrorCode type = CameraErrorCode._('cameraType');
+
+  /// Some problem occurred that prevented the camera from being used.
+  static const CameraErrorCode abort = CameraErrorCode._('cameraAbort');
+
+  /// The user media support is disabled in the current browser.
+  static const CameraErrorCode security = CameraErrorCode._('cameraSecurity');
+
+  /// The camera metadata is missing.
+  static const CameraErrorCode missingMetadata =
+      CameraErrorCode._('cameraMissingMetadata');
+
+  /// An unknown camera error.
+  static const CameraErrorCode unknown = CameraErrorCode._('cameraUnknown');
+
+  /// Returns a camera error code based on the media error.
+  ///
+  /// See: https://developer.mozilla.org/en-US/docs/Web/API/MediaError/code
+  static CameraErrorCode fromMediaError(html.MediaError error) {
+    switch (error.code) {
+      case html.MediaError.MEDIA_ERR_ABORTED:
+        return CameraErrorCode._('mediaErrorAborted');
+      case html.MediaError.MEDIA_ERR_NETWORK:
+        return CameraErrorCode._('mediaErrorNetwork');
+      case html.MediaError.MEDIA_ERR_DECODE:
+        return CameraErrorCode._('mediaErrorDecode');
+      case html.MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED:
+        return CameraErrorCode._('mediaErrorSourceNotSupported');
+      default:
+        return CameraErrorCode._('mediaErrorUnknown');
+    }
+  }
+}

packages/camera/camera_web/lib/src/types/types.dart

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-export 'camera_error_codes.dart';
+export 'camera_error_code.dart';
 export 'camera_metadata.dart';
 export 'camera_options.dart';
 export 'media_device_kind.dart';