opt gesture

Signed-off-by: dom <githubaccount56556@proton.me>

lib/common/widgets/gesture/horizontal_drag_gesture_recognizer.dart

@@ -0,0 +1,52 @@
+import 'package:PiliPlus/utils/storage_pref.dart';
+import 'package:flutter/gestures.dart';
+
+class CustomHorizontalDragGestureRecognizer
+    extends HorizontalDragGestureRecognizer {
+  CustomHorizontalDragGestureRecognizer({
+    super.debugOwner,
+    super.supportedDevices,
+    super.allowedButtonsFilter,
+  });
+
+  Offset? _initialPosition;
+
+  @override
+  void addAllowedPointer(PointerDownEvent event) {
+    super.addAllowedPointer(event);
+    _initialPosition = event.position;
+  }
+
+  @override
+  bool hasSufficientGlobalDistanceToAccept(
+    PointerDeviceKind pointerDeviceKind,
+    double? deviceTouchSlop,
+  ) {
+    return globalDistanceMoved.abs() > _computeHitSlop(pointerDeviceKind) &&
+        _cacl(_initialPosition!, lastPosition.global, gestureSettings);
+  }
+
+  static bool _cacl(
+    Offset initialPosition,
+    Offset lastPosition,
+    DeviceGestureSettings? gestureSettings,
+  ) {
+    final offset = lastPosition - initialPosition;
+    return offset.dx.abs() > offset.dy.abs() * 3;
+  }
+}
+
+double touchSlopH = Pref.touchSlopH;
+
+double _computeHitSlop(PointerDeviceKind kind) {
+  switch (kind) {
+    case PointerDeviceKind.mouse:
+      return kPrecisePointerHitSlop;
+    case PointerDeviceKind.stylus:
+    case PointerDeviceKind.invertedStylus:
+    case PointerDeviceKind.unknown:
+    case PointerDeviceKind.touch:
+    case PointerDeviceKind.trackpad:
+      return touchSlopH;
+  }
+}