Reland "Dismiss text selection toolbar with ESC" (#98995)

packages/flutter/lib/src/widgets/editable_text.dart

@@ -3181,11 +3181,20 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
     bringIntoView(newSelection.extent);
   }
 
+  Object? _hideToolbarIfVisible(DismissIntent intent) {
+    if (_selectionOverlay?.toolbarIsVisible ?? false) {
+      hideToolbar(false);
+      return null;
+    }
+    return Actions.invoke(context, intent);
+  }
+
   late final Map<Type, Action<Intent>> _actions = <Type, Action<Intent>>{
     DoNothingAndStopPropagationTextIntent: DoNothingAction(consumesKey: false),
     ReplaceTextIntent: _replaceTextAction,
     UpdateSelectionIntent: _updateSelectionAction,
     DirectionalFocusIntent: DirectionalFocusAction.forTextField(),
+    DismissIntent: CallbackAction<DismissIntent>(onInvoke: _hideToolbarIfVisible),
 
     // Delete
     DeleteCharacterIntent: _makeOverridable(_DeleteTextAction<DeleteCharacterIntent>(this, _characterBoundary)),

packages/flutter/test/widgets/editable_text_test.dart

@@ -1318,6 +1318,41 @@ void main() {
     expect(find.text('Paste'), kIsWeb ? findsNothing : findsOneWidget);
   });
 
+  testWidgets('can hide toolbar with DismissIntent', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        home: EditableText(
+          backgroundCursorColor: Colors.grey,
+          controller: controller,
+          focusNode: focusNode,
+          style: textStyle,
+          cursorColor: cursorColor,
+          selectionControls: materialTextSelectionControls,
+        ),
+      ),
+    );
+
+    final EditableTextState state =
+      tester.state<EditableTextState>(find.byType(EditableText));
+
+    // Show the toolbar
+    state.renderEditable.selectWordsInRange(
+      from: Offset.zero,
+      cause: SelectionChangedCause.tap,
+    );
+    await tester.pump();
+
+    // On web, we don't let Flutter show the toolbar.
+    expect(state.showToolbar(), kIsWeb ? isFalse : isTrue);
+    await tester.pumpAndSettle();
+    expect(find.text('Paste'), kIsWeb ? findsNothing : findsOneWidget);
+
+    // Hide the menu using the DismissIntent.
+    await tester.sendKeyEvent(LogicalKeyboardKey.escape);
+    await tester.pump();
+    expect(find.text('Paste'), findsNothing);
+  });
+
   testWidgets('Paste is shown only when there is something to paste', (WidgetTester tester) async {
     await tester.pumpWidget(
       MaterialApp(