inspect/tap skip FilledButton and CheckboxListTile; callback fallback no-ops when hittable is false #68

Summary

inspect does not list Material 3 FilledButton or CheckboxListTile as interactive widgets. tap by ValueKey finds those widgets, but when hittable is false (debug overlay / modal scrim covering the app) _tryInvokeCallback no-ops for both types, so the CLI reports Tapped and the UI does not change.

set_checkbox already understands CheckboxListTile (_getCheckboxState), then calls _performTapWithDetails, which hits the same no-op.

Published 0.9.37 (c31a08ead80e) is GitHub main. Re-activating dart pub global activate flutter_skill and flutter pub upgrade flutter_skill cannot pick up a newer release.

Environment

• flutter_skill 0.9.37 (app FlutterSkillBinding + dart pub global activate flutter_skill)
• Flutter 3.47.x / Dart 3.13.x
• Android emulator (Pixel 10 Pro XL, 1344×2992) with ISpect overlay (--dart-define=ISPECT_ENABLED=true)
• Modal showModalBottomSheet containing CheckboxListTile + FilledButton with ValueKeys

Repro

showModalBottomSheet<void>(
  context: context,
  builder: (context) => Column(
    mainAxisSize: MainAxisSize.min,
    children: [
      CheckboxListTile(
        key: const ValueKey('appointment-consent-treatment'),
        value: false,
        onChanged: (_) {},
        title: const Text('Treatment'),
      ),
      FilledButton(
        key: const ValueKey('appointment-consent-grant'),
        onPressed: () {},
        child: const Text('Grant'),
      ),
    ],
  ),
);

dart run flutter_skill inspect --output=json "ws://127.0.0.1:<vm>/ws"
dart run flutter_skill act "ws://…" find_element appointment-consent-grant
dart run flutter_skill act "ws://…" tap appointment-consent-grant

Actual

inspect (28 elements on a live VitalForge consumer sheet):

• 27 hittable: false (home chrome under the scrim, close IconButton, chips)
• 1 hittable: true — ISpect floating pill GestureDetector (~40×40)
• No FilledButton, no CheckboxListTile, no appointment-consent-* keys
• Close control appears as type: Button, widgetType: IconButton, key: null even though the widget has ValueKey('appointment-detail-close')

find_element appointment-consent-grant → not found while the form is hidden (granted state). While the form is showing, tap appointment-consent-treatment prints Tapped and either does nothing or the pointer hits the modal barrier and dismisses the sheet.

Expected

1. inspect lists FilledButton / ButtonStyleButton with the ValueKey (and Semantics.identifier when set).
2. inspect lists CheckboxListTile (or the keyed parent) with value / enabled, not only an inner key-less Checkbox.
3. When hittable is false, tap / set_checkbox invoke FilledButton.onPressed and CheckboxListTile.onChanged (same as ElevatedButton / IconButton / GestureDetector today).
4. Overlay-route widgets (modal sheet) are listed even when a debug pill is the only hittable hit-test target.

Source (0.9.37 lib/flutter_skill.dart)

Allowlist — no FilledButton, no CheckboxListTile:

static bool _isInteractiveWidget(Widget widget) {
  return widget is ElevatedButton ||
      widget is TextButton ||
      widget is OutlinedButton ||
      widget is IconButton ||
      widget is FloatingActionButton ||
      widget is TextField ||
      widget is TextFormField ||
      widget is Checkbox ||
      widget is Switch ||
      widget is Slider ||
      widget is DropdownButton ||
      (widget is InkWell && widget.onTap != null) ||
      (widget is GestureDetector && widget.onTap != null) ||
      widget is ListTile;
}

Same gap in _findInteractiveElements / _findInteractiveElementsStructured and SemanticRefGenerator._getSemanticRole.

Tap path:

if (_isHittableAt(element, center)) {
  await _dispatchTap(center);
} else {
  _tryInvokeCallback(element); // Elevated/Text/Outlined/IconButton/FAB/InkWell/GestureDetector only
}

_getCheckboxState already handles CheckboxListTile / SwitchListTile; _tryInvokeCallback does not call onChanged.

Suggested fix

• Treat ButtonStyleButton (covers FilledButton, ElevatedButton, OutlinedButton, TextButton) in inspect, semantic refs, and _tryInvokeCallback.
• Treat CheckboxListTile / SwitchListTile / RadioListTile the same way; invoke onChanged?.call(!(value ?? false)).
• Emit Semantics.identifier on inspect entries and resolve tap / set_checkbox / find_element by identifier as well as ValueKey.
• When an overlay route is current, prefer its interactive (and keyed) widgets even if a debug overlay makes hittable false.

Related

• tap by ref/coordinates rejected by published server; tap(text:) hits background route in stacked screens #52 tap hits background route in stacked screens (partially addressed by topmost-match in 0.9.37; modal + ISpect still drops sheet controls)
• fix(input): reliable synthetic pointer engine — single activation, timestamps, drag hold, hittable flag, screenshot geometry #59 hittable flag / single activation (the fallback path is why missing callback types now silently succeed)