reworked developer tools with diagnostics, storage viewers and release-capable debug overlays

lib/storage/dev_tools_settings.dart

@@ -8,8 +8,22 @@ enum MarianumConnectEndpoint { live, beta, custom }
 @JsonSerializable()
 class DevToolsSettings {
   bool showPerformanceOverlay;
-  bool checkerboardOffscreenLayers;
-  bool checkerboardRasterCacheImages;
+
+  @JsonKey(defaultValue: false)
+  bool showFrameStats;
+
+  @JsonKey(defaultValue: false)
+  bool showMemoryStats;
+
+  @JsonKey(defaultValue: false)
+  bool showSemanticsDebugger;
+
+  @JsonKey(defaultValue: false)
+  bool slowAnimations;
+
+  /// Forced text scale factor; `0` follows the system setting.
+  @JsonKey(defaultValue: 0)
+  double textScaleOverride;
 
   @JsonKey(defaultValue: MarianumConnectEndpoint.live)
   MarianumConnectEndpoint marianumConnectEndpoint;
@@ -24,8 +38,11 @@ class DevToolsSettings {
 
   DevToolsSettings({
     required this.showPerformanceOverlay,
-    required this.checkerboardOffscreenLayers,
-    required this.checkerboardRasterCacheImages,
+    this.showFrameStats = false,
+    this.showMemoryStats = false,
+    this.showSemanticsDebugger = false,
+    this.slowAnimations = false,
+    this.textScaleOverride = 0,
     this.marianumConnectEndpoint = MarianumConnectEndpoint.live,
     this.marianumConnectCustomUrl = '',
     this.emergencyNoticeUrl = '',
@@ -51,7 +68,8 @@ class DevToolsSettings {
 
   /// Compiled-in source for the backend-independent emergency notice. Must live
   /// on infrastructure that is reachable even when MarianumConnect is down.
-  static const String emergencyNoticeDefaultUrl = 'https://www.marianum-fulda.de/~aushang/marMobile.override';
+  static const String emergencyNoticeDefaultUrl =
+      'https://www.marianum-fulda.de/~aushang/marMobile.override';
 
   String? resolveEmergencyNoticeUrl() =>
       sanitizeCustomUrl(emergencyNoticeUrl) ??

lib/storage/dev_tools_settings.g.dart

@@ -6,27 +6,33 @@ part of 'dev_tools_settings.dart';
 // JsonSerializableGenerator
 // **************************************************************************
 
-DevToolsSettings _$DevToolsSettingsFromJson(
-  Map<String, dynamic> json,
-) => DevToolsSettings(
-  showPerformanceOverlay: json['showPerformanceOverlay'] as bool,
-  checkerboardOffscreenLayers: json['checkerboardOffscreenLayers'] as bool,
-  checkerboardRasterCacheImages: json['checkerboardRasterCacheImages'] as bool,
-  marianumConnectEndpoint:
-      $enumDecodeNullable(
-        _$MarianumConnectEndpointEnumMap,
-        json['marianumConnectEndpoint'],
-      ) ??
-      MarianumConnectEndpoint.live,
-  marianumConnectCustomUrl: json['marianumConnectCustomUrl'] as String? ?? '',
-  emergencyNoticeUrl: json['emergencyNoticeUrl'] as String? ?? '',
-);
+DevToolsSettings _$DevToolsSettingsFromJson(Map<String, dynamic> json) =>
+    DevToolsSettings(
+      showPerformanceOverlay: json['showPerformanceOverlay'] as bool,
+      showFrameStats: json['showFrameStats'] as bool? ?? false,
+      showMemoryStats: json['showMemoryStats'] as bool? ?? false,
+      showSemanticsDebugger: json['showSemanticsDebugger'] as bool? ?? false,
+      slowAnimations: json['slowAnimations'] as bool? ?? false,
+      textScaleOverride: (json['textScaleOverride'] as num?)?.toDouble() ?? 0,
+      marianumConnectEndpoint:
+          $enumDecodeNullable(
+            _$MarianumConnectEndpointEnumMap,
+            json['marianumConnectEndpoint'],
+          ) ??
+          MarianumConnectEndpoint.live,
+      marianumConnectCustomUrl:
+          json['marianumConnectCustomUrl'] as String? ?? '',
+      emergencyNoticeUrl: json['emergencyNoticeUrl'] as String? ?? '',
+    );
 
 Map<String, dynamic> _$DevToolsSettingsToJson(DevToolsSettings instance) =>
     <String, dynamic>{
       'showPerformanceOverlay': instance.showPerformanceOverlay,
-      'checkerboardOffscreenLayers': instance.checkerboardOffscreenLayers,
-      'checkerboardRasterCacheImages': instance.checkerboardRasterCacheImages,
+      'showFrameStats': instance.showFrameStats,
+      'showMemoryStats': instance.showMemoryStats,
+      'showSemanticsDebugger': instance.showSemanticsDebugger,
+      'slowAnimations': instance.slowAnimations,
+      'textScaleOverride': instance.textScaleOverride,
       'marianumConnectEndpoint':
           _$MarianumConnectEndpointEnumMap[instance.marianumConnectEndpoint]!,
       'marianumConnectCustomUrl': instance.marianumConnectCustomUrl,

lib/storage/hydrated_storage_bootstrap.dart

@@ -37,6 +37,8 @@ Future<void> _deleteHydratedBox(String directoryPath) async {
 class InMemoryStorage implements Storage {
   final Map<String, dynamic> _values = {};
 
+  Iterable<String> get keys => _values.keys;
+
   @override
   dynamic read(String key) => _values[key];