improve gesture ui and matching

apps/weblibre/lib/features/gestures/data/models/gesture_settings.dart

@@ -39,6 +39,10 @@ const defaultGestureIntervalMs = 0;
 const minGestureIntervalMs = 0;
 const maxGestureIntervalMs = 2000;
 
+const defaultGestureStrokeIntervalMs = 0;
+const minGestureStrokeIntervalMs = 0;
+const maxGestureStrokeIntervalMs = 500;
+
 /// Minimum number of strokes drawn before the live overlay starts suggesting
 /// the other possible completions (mirrors the reference add-on's
 /// `toastMinStroke`).
@@ -82,6 +86,11 @@ class GestureSettings with FastEquatable {
   /// gestures are ignored. 0 disables the cooldown.
   final int intervalMs;
 
+  /// Minimum milliseconds required between two consecutive direction changes
+  /// within a single gesture. A faster direction change aborts the in-progress
+  /// gesture, guarding against accidental fast scribbles. 0 disables the check.
+  final int minStrokeIntervalMs;
+
   /// Whether to show the live feedback overlay while a stroke is being drawn
   /// (the in-progress arrows plus the matching/possible actions).
   final bool showFeedback;
@@ -108,6 +117,7 @@ class GestureSettings with FastEquatable {
     required this.timeoutMs,
     required this.maxFingers,
     required this.intervalMs,
+    required this.minStrokeIntervalMs,
     required this.showFeedback,
     required this.suggestNext,
     required this.minSuggestionStroke,
@@ -122,6 +132,7 @@ class GestureSettings with FastEquatable {
     int? timeoutMs,
     int? maxFingers,
     int? intervalMs,
+    int? minStrokeIntervalMs,
     bool? showFeedback,
     bool? suggestNext,
     int? minSuggestionStroke,
@@ -133,6 +144,8 @@ class GestureSettings with FastEquatable {
        timeoutMs = timeoutMs ?? defaultGestureTimeoutMs,
        maxFingers = maxFingers ?? defaultGestureMaxFingers,
        intervalMs = intervalMs ?? defaultGestureIntervalMs,
+       minStrokeIntervalMs =
+           minStrokeIntervalMs ?? defaultGestureStrokeIntervalMs,
        showFeedback = showFeedback ?? true,
        suggestNext = suggestNext ?? true,
        minSuggestionStroke =
@@ -156,6 +169,7 @@ class GestureSettings with FastEquatable {
     timeoutMs,
     maxFingers,
     intervalMs,
+    minStrokeIntervalMs,
     showFeedback,
     suggestNext,
     minSuggestionStroke,

apps/weblibre/lib/features/gestures/data/models/gesture_settings.g.dart

@@ -19,6 +19,8 @@ abstract class _$GestureSettingsCWProxy {
 
   GestureSettings intervalMs(int intervalMs);
 
+  GestureSettings minStrokeIntervalMs(int minStrokeIntervalMs);
+
   GestureSettings showFeedback(bool showFeedback);
 
   GestureSettings suggestNext(bool suggestNext);
@@ -43,6 +45,7 @@ abstract class _$GestureSettingsCWProxy {
     int timeoutMs,
     int maxFingers,
     int intervalMs,
+    int minStrokeIntervalMs,
     bool showFeedback,
     bool suggestNext,
     int minSuggestionStroke,
@@ -76,6 +79,10 @@ class _$GestureSettingsCWProxyImpl implements _$GestureSettingsCWProxy {
   @override
   GestureSettings intervalMs(int intervalMs) => call(intervalMs: intervalMs);
 
+  @override
+  GestureSettings minStrokeIntervalMs(int minStrokeIntervalMs) =>
+      call(minStrokeIntervalMs: minStrokeIntervalMs);
+
   @override
   GestureSettings showFeedback(bool showFeedback) =>
       call(showFeedback: showFeedback);
@@ -111,6 +118,7 @@ class _$GestureSettingsCWProxyImpl implements _$GestureSettingsCWProxy {
     Object? timeoutMs = const $CopyWithPlaceholder(),
     Object? maxFingers = const $CopyWithPlaceholder(),
     Object? intervalMs = const $CopyWithPlaceholder(),
+    Object? minStrokeIntervalMs = const $CopyWithPlaceholder(),
     Object? showFeedback = const $CopyWithPlaceholder(),
     Object? suggestNext = const $CopyWithPlaceholder(),
     Object? minSuggestionStroke = const $CopyWithPlaceholder(),
@@ -145,6 +153,12 @@ class _$GestureSettingsCWProxyImpl implements _$GestureSettingsCWProxy {
           ? _value.intervalMs
           // ignore: cast_nullable_to_non_nullable
           : intervalMs as int,
+      minStrokeIntervalMs:
+          minStrokeIntervalMs == const $CopyWithPlaceholder() ||
+              minStrokeIntervalMs == null
+          ? _value.minStrokeIntervalMs
+          // ignore: cast_nullable_to_non_nullable
+          : minStrokeIntervalMs as int,
       showFeedback:
           showFeedback == const $CopyWithPlaceholder() || showFeedback == null
           ? _value.showFeedback
@@ -193,6 +207,7 @@ GestureSettings _$GestureSettingsFromJson(Map<String, dynamic> json) =>
       timeoutMs: (json['timeoutMs'] as num?)?.toInt(),
       maxFingers: (json['maxFingers'] as num?)?.toInt(),
       intervalMs: (json['intervalMs'] as num?)?.toInt(),
+      minStrokeIntervalMs: (json['minStrokeIntervalMs'] as num?)?.toInt(),
       showFeedback: json['showFeedback'] as bool?,
       suggestNext: json['suggestNext'] as bool?,
       minSuggestionStroke: (json['minSuggestionStroke'] as num?)?.toInt(),
@@ -212,6 +227,7 @@ Map<String, dynamic> _$GestureSettingsToJson(GestureSettings instance) =>
       'timeoutMs': instance.timeoutMs,
       'maxFingers': instance.maxFingers,
       'intervalMs': instance.intervalMs,
+      'minStrokeIntervalMs': instance.minStrokeIntervalMs,
       'showFeedback': instance.showFeedback,
       'suggestNext': instance.suggestNext,
       'minSuggestionStroke': instance.minSuggestionStroke,