[web] fix re-enabling tappable semantic elements (#32932)
diff --git a/lib/web_ui/lib/src/engine/semantics/tappable.dart b/lib/web_ui/lib/src/engine/semantics/tappable.dart
index 99fd1c2..77c2923 100644
--- a/lib/web_ui/lib/src/engine/semantics/tappable.dart
+++ b/lib/web_ui/lib/src/engine/semantics/tappable.dart
@@ -38,6 +38,7 @@
semanticsObject.element.setAttribute('aria-disabled', 'true');
_stopListening();
} else {
+ semanticsObject.element.removeAttribute('aria-disabled');
// Excluding text fields because text fields have browser-specific logic
// for recognizing taps and activating the keyboard.
if (semanticsObject.hasAction(ui.SemanticsAction.tap) &&
diff --git a/lib/web_ui/test/engine/semantics/semantics_test.dart b/lib/web_ui/test/engine/semantics/semantics_test.dart
index d7ec3fa..c848f48 100644
--- a/lib/web_ui/test/engine/semantics/semantics_test.dart
+++ b/lib/web_ui/test/engine/semantics/semantics_test.dart
@@ -1475,6 +1475,39 @@
semantics().semanticsEnabled = false;
});
+
+ test('can switch tappable between enabled and disabled', () async {
+ semantics()
+ ..debugOverrideTimestampFunction(() => _testTime)
+ ..semanticsEnabled = true;
+
+ void updateTappable({required bool enabled}) {
+ final SemanticsTester tester = SemanticsTester(semantics());
+ tester.updateNode(
+ id: 0,
+ hasTap: true,
+ hasEnabledState: true,
+ isEnabled: enabled,
+ isButton: true,
+ rect: const ui.Rect.fromLTRB(0, 0, 100, 50),
+ );
+ tester.apply();
+ }
+
+ updateTappable(enabled: false);
+ expectSemanticsTree('<sem role="button" aria-disabled="true" style="$rootSemanticStyle"></sem>');
+
+ updateTappable(enabled: true);
+ expectSemanticsTree('<sem role="button" style="$rootSemanticStyle"></sem>');
+
+ updateTappable(enabled: false);
+ expectSemanticsTree('<sem role="button" aria-disabled="true" style="$rootSemanticStyle"></sem>');
+
+ updateTappable(enabled: true);
+ expectSemanticsTree('<sem role="button" style="$rootSemanticStyle"></sem>');
+
+ semantics().semanticsEnabled = false;
+ });
}
void _testImage() {
