Request focus if SemanticsAction.focus is sent to a focusable widget (#142942)

## Description

This causes the `Focus` widget to request focus on its focus node if the accessibility system (screen reader) focuses a widget via the `SemanticsAction.focus` action.

## Related Issues
 - https://github.com/flutter/flutter/issues/83809

## Tests
 - Added a test to make sure that focus is requested when `SemanticsAction.focus` is sent by the engine.

dev/integration_tests/flutter_gallery/test/demo/material/chip_demo_test.dart

@@ -20,6 +20,7 @@ void main() {
       isEnabled: true,
       isFocusable: true,
       hasTapAction: true,
+      hasFocusAction: true,
       label: 'Update border shape',
     ));
 
@@ -29,6 +30,7 @@ void main() {
       isEnabled: true,
       isFocusable: true,
       hasTapAction: true,
+      hasFocusAction: true,
       label: 'Reset chips',
     ));
 

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

@@ -671,6 +671,14 @@ class _FocusState extends State<Focus> {
     Widget child = widget.child;
     if (widget.includeSemantics) {
       child = Semantics(
+        // Automatically request the focus for a focusable widget when it
+        // receives an input focus action from the semantics. Nothing is needed
+        // for losing the focus because if focus is lost, that means another
+        // node will gain focus and take focus from this widget.
+        onFocus:
+          _couldRequestFocus
+          ? focusNode.requestFocus
+          : null,
         focusable: _couldRequestFocus,
         focused: _hadPrimaryFocus,
         child: widget.child,

packages/flutter/test/cupertino/checkbox_test.dart

@@ -34,6 +34,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
 
@@ -54,6 +55,7 @@ void main() {
       isChecked: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
 
@@ -73,6 +75,7 @@ void main() {
       hasEnabledState: true,
       // isFocusable is delayed by 1 frame.
       isFocusable: true,
+      hasFocusAction: true,
     ));
 
     await tester.pump();
@@ -178,6 +181,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();
@@ -247,7 +251,7 @@ void main() {
         SemanticsFlag.isFocusable,
         SemanticsFlag.isCheckStateMixed,
       ],
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
     ), hasLength(1));
 
     await tester.pumpWidget(
@@ -268,7 +272,7 @@ void main() {
         SemanticsFlag.isChecked,
         SemanticsFlag.isFocusable,
       ],
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
     ), hasLength(1));
 
     await tester.pumpWidget(
@@ -288,7 +292,7 @@ void main() {
         SemanticsFlag.isEnabled,
         SemanticsFlag.isFocusable,
       ],
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
     ), hasLength(1));
 
     semantics.dispose();

packages/flutter/test/cupertino/radio_test.dart

@@ -147,6 +147,7 @@ void main() {
         ],
         actions: <SemanticsAction>[
           SemanticsAction.tap,
+          SemanticsAction.focus,
         ],
       ),
     );
@@ -171,6 +172,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
       isInMutuallyExclusiveGroup: true,
     ));
@@ -190,6 +192,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
       isInMutuallyExclusiveGroup: true,
       isChecked: true,
@@ -210,6 +213,7 @@ void main() {
       hasEnabledState: true,
       isFocusable: true,
       isInMutuallyExclusiveGroup: true,
+      hasFocusAction: true,
     ));
 
     await tester.pump();

packages/flutter/test/cupertino/route_test.dart

@@ -1945,7 +1945,7 @@ void main() {
     await tester.pumpAndSettle();
 
     expect(semantics, isNot(includesNodeWith(
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
       label: 'Dismiss',
     )));
     debugDefaultTargetPlatformOverride = null;

packages/flutter/test/cupertino/text_field_test.dart

@@ -2621,7 +2621,7 @@ void main() {
       ),
     );
 
-    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap])));
+    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus])));
 
     semantics.dispose();
   });

packages/flutter/test/material/back_button_test.dart

@@ -215,6 +215,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();
@@ -258,6 +259,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();

packages/flutter/test/material/bottom_navigation_bar_test.dart

@@ -2111,6 +2111,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -2120,6 +2121,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -2129,6 +2131,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
   });
@@ -2165,6 +2168,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -2174,6 +2178,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -2183,6 +2188,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
   });
@@ -2515,6 +2521,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -2524,6 +2531,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
   });
@@ -2558,6 +2566,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -2567,6 +2576,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
   });
@@ -2747,13 +2757,13 @@ void main() {
                                 SemanticsFlag.isSelected,
                                 SemanticsFlag.isFocusable,
                               ],
-                              actions: <SemanticsAction>[SemanticsAction.tap],
+                              actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                               label: 'A\nTab 1 of 2',
                               textDirection: TextDirection.ltr,
                             ),
                             TestSemantics(
                               flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
-                              actions: <SemanticsAction>[SemanticsAction.tap],
+                              actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                               label: 'B\nTab 2 of 2',
                               textDirection: TextDirection.ltr,
                             ),

packages/flutter/test/material/calendar_date_picker_test.dart

@@ -864,6 +864,7 @@ void main() {
           tooltip: 'Previous month',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,
@@ -872,6 +873,7 @@ void main() {
           tooltip: 'Next month',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,
@@ -882,90 +884,105 @@ void main() {
           label: '1, Friday, January 1, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('2')), matchesSemantics(
           label: '2, Saturday, January 2, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('3')), matchesSemantics(
           label: '3, Sunday, January 3, 2016, Today',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('4')), matchesSemantics(
           label: '4, Monday, January 4, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('5')), matchesSemantics(
           label: '5, Tuesday, January 5, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('6')), matchesSemantics(
           label: '6, Wednesday, January 6, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('7')), matchesSemantics(
           label: '7, Thursday, January 7, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('8')), matchesSemantics(
           label: '8, Friday, January 8, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('9')), matchesSemantics(
           label: '9, Saturday, January 9, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('10')), matchesSemantics(
           label: '10, Sunday, January 10, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('11')), matchesSemantics(
           label: '11, Monday, January 11, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('12')), matchesSemantics(
           label: '12, Tuesday, January 12, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('13')), matchesSemantics(
           label: '13, Wednesday, January 13, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('14')), matchesSemantics(
           label: '14, Thursday, January 14, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('15')), matchesSemantics(
           label: '15, Friday, January 15, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isSelected: true,
           isFocusable: true,
         ));
@@ -973,90 +990,105 @@ void main() {
           label: '16, Saturday, January 16, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('17')), matchesSemantics(
           label: '17, Sunday, January 17, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('18')), matchesSemantics(
           label: '18, Monday, January 18, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('19')), matchesSemantics(
           label: '19, Tuesday, January 19, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('20')), matchesSemantics(
           label: '20, Wednesday, January 20, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('21')), matchesSemantics(
           label: '21, Thursday, January 21, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('22')), matchesSemantics(
           label: '22, Friday, January 22, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('23')), matchesSemantics(
           label: '23, Saturday, January 23, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('24')), matchesSemantics(
           label: '24, Sunday, January 24, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('25')), matchesSemantics(
           label: '25, Monday, January 25, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('26')), matchesSemantics(
           label: '26, Tuesday, January 26, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('27')), matchesSemantics(
           label: '27, Wednesday, January 27, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('28')), matchesSemantics(
           label: '28, Thursday, January 28, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('29')), matchesSemantics(
           label: '29, Friday, January 29, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         expect(tester.getSemantics(find.text('30')), matchesSemantics(
           label: '30, Saturday, January 30, 2016',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
         semantics.dispose();
@@ -1081,6 +1113,7 @@ void main() {
           expect(tester.getSemantics(find.text('$year')), matchesSemantics(
             label: '$year',
             hasTapAction: true,
+            hasFocusAction: true,
             isSelected: year == 2016,
             isFocusable: true,
             isButton: true,

packages/flutter/test/material/card_test.dart

@@ -130,6 +130,7 @@ void main() {
                 textDirection: TextDirection.ltr,
                 actions: <SemanticsAction>[
                   SemanticsAction.tap,
+                  SemanticsAction.focus,
                 ],
                 flags: <SemanticsFlag>[
                   SemanticsFlag.hasEnabledState,

packages/flutter/test/material/checkbox_list_tile_test.dart

@@ -1189,6 +1189,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
       label: 'Hello\nthere',
     ));

packages/flutter/test/material/checkbox_test.dart

@@ -78,6 +78,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
 
@@ -97,6 +98,7 @@ void main() {
       isChecked: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
 
@@ -115,6 +117,7 @@ void main() {
       hasEnabledState: true,
       // isFocusable is delayed by 1 frame.
       isFocusable: true,
+      hasFocusAction: true,
     ));
 
     await tester.pump();
@@ -213,6 +216,7 @@ void main() {
       isChecked: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();
@@ -242,6 +246,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();
@@ -317,7 +322,7 @@ void main() {
         SemanticsFlag.isFocusable,
         SemanticsFlag.isCheckStateMixed,
       ],
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
     ), hasLength(1));
 
     await tester.pumpWidget(
@@ -341,7 +346,7 @@ void main() {
         SemanticsFlag.isChecked,
         SemanticsFlag.isFocusable,
       ],
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
     ), hasLength(1));
 
     await tester.pumpWidget(
@@ -364,7 +369,7 @@ void main() {
         SemanticsFlag.isEnabled,
         SemanticsFlag.isFocusable,
       ],
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
     ), hasLength(1));
 
     semantics.dispose();

packages/flutter/test/material/chip_test.dart

@@ -2971,7 +2971,7 @@ void main() {
                             children: <TestSemantics>[
                               TestSemantics(
                                 tooltip: 'Delete',
-                                actions: <SemanticsAction>[SemanticsAction.tap],
+                                actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                                 textDirection: TextDirection.ltr,
                                 flags: <SemanticsFlag>[
                                   SemanticsFlag.isButton,
@@ -3030,7 +3030,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                           ),
                         ],
                       ),
@@ -3088,7 +3088,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                           ),
                         ],
                       ),
@@ -3141,7 +3141,7 @@ void main() {
                               SemanticsFlag.isFocusable,
                               SemanticsFlag.isSelected,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                           ),
                         ],
                       ),
@@ -3295,7 +3295,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                           ),
                         ],
                       ),

packages/flutter/test/material/date_picker_test.dart

@@ -1545,6 +1545,7 @@ void main() {
           label: '3, Sunday, January 3, 2016, Today',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isFocusable: true,
         ));
 
@@ -1553,6 +1554,7 @@ void main() {
           tooltip: 'Switch to input',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,
@@ -1565,6 +1567,7 @@ void main() {
           label: 'OK',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,
@@ -1573,6 +1576,7 @@ void main() {
           label: 'CANCEL',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,
@@ -1603,6 +1607,7 @@ void main() {
           tooltip: 'Switch to calendar',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,
@@ -1630,6 +1635,7 @@ void main() {
           label: 'OK',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,
@@ -1638,6 +1644,7 @@ void main() {
           label: 'CANCEL',
           isButton: true,
           hasTapAction: true,
+          hasFocusAction: true,
           isEnabled: true,
           hasEnabledState: true,
           isFocusable: true,

packages/flutter/test/material/date_range_picker_test.dart

@@ -1319,6 +1319,7 @@ void main() {
           matchesSemantics(
             label: '30, Saturday, January 30, 2016, Today',
             hasTapAction: true,
+            hasFocusAction: true,
             isFocusable: true,
           ),
         );

packages/flutter/test/material/drawer_button_test.dart

@@ -182,6 +182,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();
@@ -239,6 +240,7 @@ void main() {
       hasEnabledState: true,
       isEnabled: true,
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();

packages/flutter/test/material/drawer_test.dart

@@ -147,7 +147,7 @@ void main() {
 
     expect(semantics, isNot(includesNodeWith(
       label: const DefaultMaterialLocalizations().modalBarrierDismissLabel,
-      actions: <SemanticsAction>[SemanticsAction.tap],
+      actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
     )));
 
     semantics.dispose();

packages/flutter/test/material/dropdown_test.dart

@@ -1300,6 +1300,7 @@ void main() {
       isButton: true,
       label: 'test',
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
 
@@ -1315,6 +1316,7 @@ void main() {
       isButton: true,
       label: 'three',
       hasTapAction: true,
+      hasFocusAction: true,
       isFocusable: true,
     ));
     handle.dispose();
@@ -1360,28 +1362,28 @@ void main() {
                             SemanticsFlag.isFocusable,
                           ],
                           tags: <SemanticsTag>[const SemanticsTag('RenderViewport.twoPane')],
-                          actions: <SemanticsAction>[SemanticsAction.tap],
+                          actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         ),
                         TestSemantics(
                           label: 'two',
                           textDirection: TextDirection.ltr,
                           flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
                           tags: <SemanticsTag>[const SemanticsTag('RenderViewport.twoPane')],
-                          actions: <SemanticsAction>[SemanticsAction.tap],
+                          actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         ),
                         TestSemantics(
                           label: 'three',
                           textDirection: TextDirection.ltr,
                           flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
                           tags: <SemanticsTag>[const SemanticsTag('RenderViewport.twoPane')],
-                          actions: <SemanticsAction>[SemanticsAction.tap],
+                          actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         ),
                         TestSemantics(
                           label: 'four',
                           textDirection: TextDirection.ltr,
                           flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
                           tags: <SemanticsTag>[const SemanticsTag('RenderViewport.twoPane')],
-                          actions: <SemanticsAction>[SemanticsAction.tap],
+                          actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         ),
                       ],
                     ),

packages/flutter/test/material/elevated_button_test.dart

@@ -819,6 +819,7 @@ void main() {
           TestSemantics.rootChild(
             actions: <SemanticsAction>[
               SemanticsAction.tap,
+              SemanticsAction.focus,
             ],
             label: 'ABC',
             rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),

packages/flutter/test/material/expand_icon_test.dart

@@ -217,6 +217,7 @@ void main() {
 
     expect(tester.getSemantics(find.byType(ExpandIcon)), matchesSemantics(
       hasTapAction: true,
+      hasFocusAction: true,
       hasEnabledState: true,
       isEnabled: true,
       isFocusable: true,
@@ -233,6 +234,7 @@ void main() {
 
     expect(tester.getSemantics(find.byType(ExpandIcon)), matchesSemantics(
       hasTapAction: true,
+      hasFocusAction: true,
       hasEnabledState: true,
       isEnabled: true,
       isFocusable: true,
@@ -258,6 +260,7 @@ void main() {
       children: <Matcher>[
         matchesSemantics(
           hasTapAction: true,
+          hasFocusAction: true,
           hasEnabledState: true,
           isEnabled: true,
           isFocusable: true,
@@ -277,6 +280,7 @@ void main() {
       children: <Matcher>[
         matchesSemantics(
           hasTapAction: true,
+          hasFocusAction: true,
           hasEnabledState: true,
           isEnabled: true,
           isFocusable: true,

packages/flutter/test/material/expansion_panel_test.dart

@@ -211,6 +211,7 @@ void main() {
       isEnabled: true,
       isFocusable: true,
       hasTapAction: true,
+      hasFocusAction: true,
     ));
 
     // Check custom header widget semantics is preserved.
@@ -261,6 +262,7 @@ void main() {
           isEnabled: true,
           isFocusable: true,
           hasTapAction: true,
+          hasFocusAction: true,
         ),
       ],
     ));
@@ -1099,6 +1101,7 @@ void main() {
       isEnabled: true,
       isFocusable: true,
       hasTapAction: true,
+      hasFocusAction: true,
       onTapHint: localizations.expandedIconTapHint,
     ));
 
@@ -1123,6 +1126,7 @@ void main() {
       isEnabled: true,
       isFocusable: true,
       hasTapAction: true,
+      hasFocusAction: true,
       onTapHint: localizations.collapsedIconTapHint,
     ));
 
@@ -1187,6 +1191,7 @@ void main() {
           isEnabled: true,
           isFocusable: true,
           hasTapAction: true,
+          hasFocusAction: true,
         ),
       ],
     ));
@@ -1215,6 +1220,7 @@ void main() {
           isEnabled: true,
           isFocusable: true,
           hasTapAction: true,
+          hasFocusAction: true,
         ),
       ],
     ));
@@ -1268,6 +1274,7 @@ void main() {
       isFocusable: true,
       hasEnabledState: true,
       hasTapAction: true,
+      hasFocusAction: true,
     ));
 
     expect(tester.getSemantics(find.byKey(collapsedKey)), matchesSemantics(
@@ -1276,6 +1283,7 @@ void main() {
       isFocusable: true,
       hasEnabledState: true,
       hasTapAction: true,
+      hasFocusAction: true,
     ));
 
     handle.dispose();

packages/flutter/test/material/expansion_tile_test.dart

@@ -728,6 +728,7 @@ void main() {
       tester.getSemantics(find.byType(ListTile).first),
       matchesSemantics(
         hasTapAction: true,
+        hasFocusAction: true,
         hasEnabledState: true,
         isEnabled: true,
         isFocused: true,
@@ -742,6 +743,7 @@ void main() {
       tester.getSemantics(find.byType(ListTile).last),
       matchesSemantics(
         hasTapAction: true,
+        hasFocusAction: true,
         hasEnabledState: true,
         isEnabled: true,
         isFocusable: true,

packages/flutter/test/material/filled_button_test.dart

@@ -1004,6 +1004,7 @@ void main() {
           TestSemantics.rootChild(
             actions: <SemanticsAction>[
               SemanticsAction.tap,
+              SemanticsAction.focus,
             ],
             label: 'ABC',
             rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),

packages/flutter/test/material/floating_action_button_test.dart

@@ -631,6 +631,7 @@ void main() {
           ],
           actions: <SemanticsAction>[
             SemanticsAction.tap,
+            SemanticsAction.focus,
           ],
         ),
       ],
@@ -699,6 +700,7 @@ void main() {
                       tooltip: 'Add Photo',
                       actions: <SemanticsAction>[
                         SemanticsAction.tap,
+                        SemanticsAction.focus,
                       ],
                       flags: <SemanticsFlag>[
                         SemanticsFlag.hasEnabledState,
@@ -922,6 +924,7 @@ void main() {
       tester.getSemantics(find.byType(FloatingActionButton)),
       matchesSemantics(
         hasTapAction: true,
+        hasFocusAction: true,
         hasEnabledState: true,
         isButton: true,
         isEnabled: true,

packages/flutter/test/material/icon_button_test.dart

@@ -616,6 +616,7 @@ void main() {
           rect: const Rect.fromLTRB(0.0, 0.0, 48.0, 48.0),
           actions: <SemanticsAction>[
             SemanticsAction.tap,
+            SemanticsAction.focus,
           ],
           flags: <SemanticsFlag>[
             SemanticsFlag.hasEnabledState,
@@ -690,6 +691,7 @@ void main() {
                         TestSemantics(
                           actions: <SemanticsAction>[
                             SemanticsAction.tap,
+                            SemanticsAction.focus,
                           ],
                           flags: <SemanticsFlag>[
                             SemanticsFlag.hasEnabledState,
@@ -2177,6 +2179,7 @@ void main() {
           TestSemantics.rootChild(
             actions: <SemanticsAction>[
               SemanticsAction.tap,
+              SemanticsAction.focus,
             ],
             rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),
             transform: Matrix4.translationValues(356.0, 276.0, 0.0),

packages/flutter/test/material/ink_well_test.dart

@@ -1178,7 +1178,7 @@ testWidgets('InkResponse radius can be updated', (WidgetTester tester) async {
         ),
       ),
     ));
-    expect(semantics, includesNodeWith(label: 'Button', actions: <SemanticsAction>[SemanticsAction.tap]));
+    expect(semantics, includesNodeWith(label: 'Button', actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus]));
 
     await tester.pumpWidget(Directionality(
       textDirection: TextDirection.ltr,
@@ -1190,7 +1190,7 @@ testWidgets('InkResponse radius can be updated', (WidgetTester tester) async {
         ),
       ),
     ));
-    expect(semantics, isNot(includesNodeWith(label: 'Button', actions: <SemanticsAction>[SemanticsAction.tap])));
+    expect(semantics, isNot(includesNodeWith(label: 'Button', actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus])));
 
     semantics.dispose();
   });
@@ -1983,6 +1983,7 @@ testWidgets('InkResponse radius can be updated', (WidgetTester tester) async {
       label: 'Foo',
       hasLongPressAction: true,
       isFocusable: true,
+      hasFocusAction: true,
       textDirection: TextDirection.ltr,
     ));
 
@@ -2003,6 +2004,7 @@ testWidgets('InkResponse radius can be updated', (WidgetTester tester) async {
     expect(tester.getSemantics(find.bySemanticsLabel('Foo')), matchesSemantics(
       label: 'Foo',
       hasTapAction: true,
+      hasFocusAction: true,
       hasLongPressAction: true,
       isFocusable: true,
       textDirection: TextDirection.ltr,

packages/flutter/test/material/list_tile_test.dart

@@ -308,7 +308,7 @@ void main() {
                 SemanticsFlag.isEnabled,
                 SemanticsFlag.isFocusable,
               ],
-              actions: <SemanticsAction>[SemanticsAction.tap],
+              actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
               label: 'two',
             ),
             TestSemantics.rootChild(

packages/flutter/test/material/material_button_test.dart

@@ -620,6 +620,7 @@ void main() {
             label: 'Button',
             actions: <SemanticsAction>[
               SemanticsAction.tap,
+              SemanticsAction.focus,
             ],
             flags: <SemanticsFlag>[
               SemanticsFlag.hasEnabledState,
@@ -661,6 +662,7 @@ void main() {
               SemanticsFlag.isButton,
               SemanticsFlag.isFocusable,
             ],
+            actions: <SemanticsAction>[SemanticsAction.focus],
           ),
         ],
       ),

packages/flutter/test/material/menu_anchor_test.dart

@@ -3421,6 +3421,7 @@ void main() {
               TestSemantics.rootChild(
                 actions: <SemanticsAction>[
                   SemanticsAction.tap,
+                  SemanticsAction.focus,
                 ],
                 label: 'ABC',
                 rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),
@@ -3551,7 +3552,7 @@ void main() {
                               SemanticsFlag.hasExpandedState,
                               SemanticsFlag.isExpanded,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: 'ABC',
                             rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),
                           ),
@@ -3573,7 +3574,7 @@ void main() {
                                       SemanticsFlag.isEnabled,
                                       SemanticsFlag.isFocusable,
                                     ],
-                                    actions: <SemanticsAction>[SemanticsAction.tap],
+                                    actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                                   ),
                                 ],
                               ),
@@ -3621,7 +3622,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: 'ABC',
                             rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),
                           ),

packages/flutter/test/material/navigation_bar_test.dart

@@ -559,6 +559,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -568,6 +569,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
 
@@ -580,6 +582,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -590,6 +593,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
   });
@@ -624,6 +628,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -633,6 +638,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
 
@@ -645,6 +651,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -655,6 +662,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
   });

packages/flutter/test/material/navigation_drawer_test.dart

@@ -324,6 +324,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -333,6 +334,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
 
@@ -345,6 +347,7 @@ void main() {
         textDirection: TextDirection.ltr,
         isFocusable: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
     expect(
@@ -355,6 +358,7 @@ void main() {
         isFocusable: true,
         isSelected: true,
         hasTapAction: true,
+        hasFocusAction: true,
       ),
     );
   });

packages/flutter/test/material/navigation_rail_test.dart

@@ -5513,25 +5513,25 @@ TestSemantics _expectedSemantics() {
                       SemanticsFlag.isSelected,
                       SemanticsFlag.isFocusable,
                     ],
-                    actions: <SemanticsAction>[SemanticsAction.tap],
+                    actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                     label: 'Abc\nTab 1 of 4',
                     textDirection: TextDirection.ltr,
                   ),
                   TestSemantics(
                     flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
-                    actions: <SemanticsAction>[SemanticsAction.tap],
+                    actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                     label: 'Def\nTab 2 of 4',
                     textDirection: TextDirection.ltr,
                   ),
                   TestSemantics(
                     flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
-                    actions: <SemanticsAction>[SemanticsAction.tap],
+                    actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                     label: 'Ghi\nTab 3 of 4',
                     textDirection: TextDirection.ltr,
                   ),
                   TestSemantics(
                     flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
-                    actions: <SemanticsAction>[SemanticsAction.tap],
+                    actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                     label: 'Jkl\nTab 4 of 4',
                     textDirection: TextDirection.ltr,
                   ),

packages/flutter/test/material/outlined_button_test.dart

@@ -1073,6 +1073,7 @@ void main() {
           TestSemantics.rootChild(
             actions: <SemanticsAction>[
               SemanticsAction.tap,
+              SemanticsAction.focus,
             ],
             label: 'ABC',
             rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),

packages/flutter/test/material/popup_menu_test.dart

@@ -1219,7 +1219,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '1',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1230,7 +1230,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '2',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1241,7 +1241,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '3',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1252,7 +1252,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '4',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1263,7 +1263,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '5',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1351,7 +1351,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: 'test1\ntest2',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1432,7 +1432,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '1',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1452,7 +1452,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '3',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1463,7 +1463,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '4',
                             textDirection: TextDirection.ltr,
                           ),
@@ -1474,7 +1474,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: '5',
                             textDirection: TextDirection.ltr,
                           ),

packages/flutter/test/material/radio_list_tile_test.dart

@@ -411,7 +411,7 @@ void main() {
                 SemanticsFlag.isInMutuallyExclusiveGroup,
                 SemanticsFlag.isFocusable,
               ],
-              actions: <SemanticsAction>[SemanticsAction.tap],
+              actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
               label: 'Title',
               textDirection: TextDirection.ltr,
             ),
@@ -448,7 +448,7 @@ void main() {
                 SemanticsFlag.isInMutuallyExclusiveGroup,
                 SemanticsFlag.isFocusable,
               ],
-              actions: <SemanticsAction>[SemanticsAction.tap],
+              actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
               label: 'Title',
               textDirection: TextDirection.ltr,
             ),
@@ -483,6 +483,7 @@ void main() {
                 SemanticsFlag.isInMutuallyExclusiveGroup,
                 SemanticsFlag.isFocusable,
               ],
+              actions: <SemanticsAction>[SemanticsAction.focus],
               label: 'Title',
               textDirection: TextDirection.ltr,
             ),

packages/flutter/test/material/radio_test.dart

@@ -221,6 +221,7 @@ void main() {
         ],
         actions: <SemanticsAction>[
           SemanticsAction.tap,
+          SemanticsAction.focus,
         ],
       ),
     );
@@ -254,6 +255,7 @@ void main() {
           ],
           actions: <SemanticsAction>[
             SemanticsAction.tap,
+            SemanticsAction.focus,
           ],
         ),
       ],
@@ -284,6 +286,7 @@ void main() {
           ],
           actions: <SemanticsAction>[
             SemanticsAction.tap,
+            SemanticsAction.focus,
           ],
         ),
       ],
@@ -310,6 +313,7 @@ void main() {
             SemanticsFlag.isInMutuallyExclusiveGroup,
             SemanticsFlag.isFocusable,  // This flag is delayed by 1 frame.
           ],
+          actions: <SemanticsAction>[SemanticsAction.focus],
         ),
       ],
     ), ignoreRect: true, ignoreTransform: true));

packages/flutter/test/material/raw_material_button_test.dart

@@ -160,6 +160,7 @@ void main() {
             ],
             actions: <SemanticsAction>[
               SemanticsAction.tap,
+              SemanticsAction.focus,
             ],
             label: '+',
             textDirection: TextDirection.ltr,

packages/flutter/test/material/reorderable_list_test.dart

@@ -751,6 +751,7 @@ void main() {
             hasEnabledState: true,
             label: 'Switch tile',
             hasTapAction: true,
+            hasFocusAction: true,
           ));
           handle.dispose();
         });

packages/flutter/test/material/search_test.dart

@@ -662,7 +662,7 @@ void main() {
                                   SemanticsFlag.isEnabled,
                                   SemanticsFlag.isFocusable,
                                 ],
-                                actions: <SemanticsAction>[SemanticsAction.tap],
+                                actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                                 tooltip: 'Back',
                                 textDirection: TextDirection.ltr,
                               ),
@@ -718,7 +718,7 @@ void main() {
                           SemanticsFlag.isEnabled,
                           SemanticsFlag.isFocusable,
                         ],
-                        actions: <SemanticsAction>[SemanticsAction.tap],
+                        actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         label: 'Suggestions',
                         textDirection: TextDirection.ltr,
                       ),
@@ -812,7 +812,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable,
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             tooltip: 'Back',
                             textDirection: TextDirection.ltr,
                           ),
@@ -856,7 +856,7 @@ void main() {
                           SemanticsFlag.isEnabled,
                           SemanticsFlag.isFocusable,
                         ],
-                        actions: <SemanticsAction>[SemanticsAction.tap],
+                        actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         label: 'Suggestions',
                         textDirection: TextDirection.ltr,
                       ),

packages/flutter/test/material/segmented_button_test.dart

@@ -449,6 +449,7 @@ void main() {
               label: '1',
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
             ),
 
@@ -466,6 +467,7 @@ void main() {
               label: '2',
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
             ),
 
@@ -529,6 +531,7 @@ void main() {
               label: '1',
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
             ),
 
@@ -544,6 +547,7 @@ void main() {
               label: '2',
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
             ),
 

packages/flutter/test/material/slider_test.dart

@@ -1292,6 +1292,7 @@ void main() {
                             SemanticsFlag.isSlider,
                           ],
                           actions: <SemanticsAction>[
+                            SemanticsAction.focus,
                             SemanticsAction.increase,
                             SemanticsAction.decrease,
                           ],
@@ -1350,6 +1351,7 @@ void main() {
                             SemanticsFlag.isFocusable,
                             SemanticsFlag.isSlider,
                           ],
+                          actions: <SemanticsAction>[SemanticsAction.focus],
                           value: '50%',
                           increasedValue: '55%',
                           decreasedValue: '45%',
@@ -1452,7 +1454,7 @@ void main() {
                         TestSemantics(
                           id: 4,
                           flags: <SemanticsFlag>[SemanticsFlag.hasEnabledState, SemanticsFlag.isEnabled, SemanticsFlag.isFocusable, SemanticsFlag.isSlider],
-                          actions: <SemanticsAction>[SemanticsAction.increase, SemanticsAction.decrease],
+                          actions: <SemanticsAction>[SemanticsAction.focus, SemanticsAction.increase, SemanticsAction.decrease],
                           value: '50%',
                           increasedValue: '60%',
                           decreasedValue: '40%',
@@ -1565,6 +1567,7 @@ void main() {
                             SemanticsFlag.isSlider,
                           ],
                           actions: <SemanticsAction>[
+                            SemanticsAction.focus,
                             SemanticsAction.increase,
                             SemanticsAction.decrease,
                             SemanticsAction.didGainAccessibilityFocus,
@@ -1625,6 +1628,7 @@ void main() {
                             SemanticsFlag.isSlider,
                           ],
                           actions: <SemanticsAction>[
+                            SemanticsAction.focus,
                             SemanticsAction.didGainAccessibilityFocus,
                           ],
                           value: '50%',
@@ -1729,7 +1733,7 @@ void main() {
                         TestSemantics(
                           id: 4,
                           flags: <SemanticsFlag>[SemanticsFlag.hasEnabledState, SemanticsFlag.isEnabled, SemanticsFlag.isFocusable, SemanticsFlag.isSlider],
-                          actions: <SemanticsAction>[SemanticsAction.increase, SemanticsAction.decrease],
+                          actions: <SemanticsAction>[SemanticsAction.focus, SemanticsAction.increase, SemanticsAction.decrease],
                           value: '40',
                           increasedValue: '60',
                           decreasedValue: '20',
@@ -1789,7 +1793,7 @@ void main() {
                         TestSemantics(
                           id: 4,
                           flags: <SemanticsFlag>[SemanticsFlag.hasEnabledState, SemanticsFlag.isEnabled, SemanticsFlag.isFocusable, SemanticsFlag.isSlider],
-                          actions: <SemanticsAction>[SemanticsAction.increase, SemanticsAction.decrease],
+                          actions: <SemanticsAction>[SemanticsAction.focus, SemanticsAction.increase, SemanticsAction.decrease],
                           value: '40',
                           increasedValue: '60',
                           decreasedValue: '20',
@@ -2633,6 +2637,7 @@ void main() {
                           SemanticsFlag.isSlider,
                         ],
                         actions: <SemanticsAction>[
+                          SemanticsAction.focus,
                           SemanticsAction.increase,
                           SemanticsAction.decrease,
                           SemanticsAction.didGainAccessibilityFocus,

packages/flutter/test/material/switch_list_tile_test.dart

@@ -78,7 +78,7 @@ void main() {
             SemanticsFlag.isFocusable,
             SemanticsFlag.isToggled,
           ],
-          actions: SemanticsAction.tap.index,
+          actions: SemanticsAction.tap.index | SemanticsAction.focus.index,
           label: 'aaa\nAAA',
         ),
         TestSemantics.rootChild(
@@ -92,7 +92,7 @@ void main() {
             SemanticsFlag.isEnabled,
             SemanticsFlag.isFocusable,
           ],
-          actions: SemanticsAction.tap.index,
+          actions: SemanticsAction.tap.index | SemanticsAction.focus.index,
           label: 'bbb\nBBB',
         ),
         TestSemantics.rootChild(
@@ -106,7 +106,7 @@ void main() {
             SemanticsFlag.isFocusable,
             SemanticsFlag.isInMutuallyExclusiveGroup,
           ],
-          actions: SemanticsAction.tap.index,
+          actions: SemanticsAction.tap.index | SemanticsAction.focus.index,
           label: 'CCC\nccc',
         ),
       ],

packages/flutter/test/material/tabs_test.dart

@@ -3592,7 +3592,7 @@ void main() {
                     children: <TestSemantics>[
                       TestSemantics(
                         id: 4,
-                        actions: <SemanticsAction>[SemanticsAction.tap],
+                        actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         flags: <SemanticsFlag>[
                           SemanticsFlag.isSelected,
                           SemanticsFlag.isFocusable,
@@ -3604,7 +3604,7 @@ void main() {
                       TestSemantics(
                         id: 5,
                         flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
-                        actions: <SemanticsAction>[SemanticsAction.tap],
+                        actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         label: 'TAB #1\nTab 2 of 2',
                         rect: const Rect.fromLTRB(0.0, 0.0, 116.0, kTextTabBarHeight),
                         transform: Matrix4.translationValues(116.0, 276.0, 0.0),
@@ -3863,7 +3863,7 @@ void main() {
                           SemanticsFlag.isSelected,
                           SemanticsFlag.isFocusable,
                         ],
-                        actions: <SemanticsAction>[SemanticsAction.tap],
+                        actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         label: 'Semantics override 0\nTab 1 of 2',
                         rect: const Rect.fromLTRB(0.0, 0.0, 116.0, kTextTabBarHeight),
                         transform: Matrix4.translationValues(0.0, 276.0, 0.0),
@@ -3871,7 +3871,7 @@ void main() {
                       TestSemantics(
                         id: 5,
                         flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
-                        actions: <SemanticsAction>[SemanticsAction.tap],
+                        actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                         label: 'Semantics override 1\nTab 2 of 2',
                         rect: const Rect.fromLTRB(0.0, 0.0, 116.0, kTextTabBarHeight),
                         transform: Matrix4.translationValues(116.0, 276.0, 0.0),
@@ -5652,14 +5652,14 @@ void main() {
               flags: <SemanticsFlag>[SemanticsFlag.isFocusable, SemanticsFlag.isSelected],
               id: 2,
               rect: TestSemantics.fullScreen,
-              actions: 1,
+              actions: 1 | SemanticsAction.focus.index,
             ),
             TestSemantics(
               label: 'TAB2\nTab 2 of 2',
               flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
               id: 3,
               rect: TestSemantics.fullScreen,
-              actions: <SemanticsAction>[SemanticsAction.tap],
+              actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
             ),
             TestSemantics(
               id: 4,

packages/flutter/test/material/text_button_test.dart

@@ -607,6 +607,7 @@ void main() {
           TestSemantics.rootChild(
             actions: <SemanticsAction>[
               SemanticsAction.tap,
+              SemanticsAction.focus,
             ],
             label: 'ABC',
             rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),

packages/flutter/test/material/text_field_test.dart

@@ -6964,7 +6964,7 @@ void main() {
       ),
     );
 
-    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap])));
+    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus])));
     semantics.dispose();
   });
 
@@ -7005,7 +7005,7 @@ void main() {
       ),
     );
 
-    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap])));
+    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus])));
 
     semantics.dispose();
   });

packages/flutter/test/material/time_picker_test.dart

@@ -1250,7 +1250,7 @@ void main() {
           semantics,
           includesNodeWith(
             label: amString,
-            actions: <SemanticsAction>[SemanticsAction.tap],
+            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
             flags: <SemanticsFlag>[
               SemanticsFlag.isButton,
               SemanticsFlag.isChecked,
@@ -1264,7 +1264,7 @@ void main() {
           semantics,
           includesNodeWith(
             label: pmString,
-            actions: <SemanticsAction>[SemanticsAction.tap],
+            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
             flags: <SemanticsFlag>[
               SemanticsFlag.isButton,
               SemanticsFlag.isInMutuallyExclusiveGroup,

packages/flutter/test/material/toggle_buttons_test.dart

@@ -2117,6 +2117,7 @@ void main() {
               ],
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
               rect: const Rect.fromLTRB(0.0, 0.0, 87.0, 48.0),
             ),
@@ -2130,6 +2131,7 @@ void main() {
               ],
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
               rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0)
             ),
@@ -2143,6 +2145,7 @@ void main() {
               ],
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
               rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0),
             ),
@@ -2188,6 +2191,7 @@ void main() {
               ],
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
             ),
             TestSemantics(
@@ -2201,6 +2205,7 @@ void main() {
               ],
               actions: <SemanticsAction>[
                 SemanticsAction.tap,
+                SemanticsAction.focus,
               ],
             ),
           ],

packages/flutter/test/material/user_accounts_drawer_header_test.dart

@@ -531,6 +531,7 @@ void main() {
                           flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
                           label: 'Signed in\nname\nemail',
                           textDirection: TextDirection.ltr,
+                          actions: <SemanticsAction>[SemanticsAction.focus],
                           children: <TestSemantics>[
                             TestSemantics(
                               label: r'B',

packages/flutter/test/widgets/absorb_pointer_test.dart

@@ -48,6 +48,7 @@ void main() {
         matchesSemantics(
           label: 'button',
           hasTapAction: true,
+          hasFocusAction: true,
           isButton: true,
           isFocusable: true,
           hasEnabledState: true,

packages/flutter/test/widgets/actions_test.dart

@@ -1013,9 +1013,11 @@ void main() {
             // This semantic is from `Focus` widget under `FocusableActionDetector`.
             matchesSemantics(
               isFocusable: true,
+              hasFocusAction: true,
               children: <Matcher>[
                 matchesSemantics(
                   hasTapAction: true,
+                  hasFocusAction: true,
                   isButton: true,
                   hasEnabledState: true,
                   isEnabled: true,
@@ -1025,6 +1027,7 @@ void main() {
                 ),
                 matchesSemantics(
                   hasTapAction: true,
+                  hasFocusAction: true,
                   isButton: true,
                   hasEnabledState: true,
                   isEnabled: true,
@@ -1068,6 +1071,7 @@ void main() {
           children: <Matcher>[
             matchesSemantics(
               hasTapAction: true,
+              hasFocusAction: true,
               isButton: true,
               hasEnabledState: true,
               isEnabled: true,
@@ -1077,6 +1081,7 @@ void main() {
             ),
             matchesSemantics(
               hasTapAction: true,
+              hasFocusAction: true,
               isButton: true,
               hasEnabledState: true,
               isEnabled: true,

packages/flutter/test/widgets/basic_test.dart

@@ -858,6 +858,7 @@ void main() {
         matchesSemantics(
           label: 'button',
           hasTapAction: true,
+          hasFocusAction: true,
           isButton: true,
           isFocusable: true,
           hasEnabledState: true,

packages/flutter/test/widgets/drawer_test.dart

@@ -348,7 +348,7 @@ void main() {
     scaffoldKey.currentState!.openDrawer();
     await tester.pump(const Duration(milliseconds: 100));
 
-    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap])));
+    expect(semantics, isNot(includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus])));
     expect(semantics, isNot(includesNodeWith(label: 'Dismiss')));
 
     semantics.dispose();

packages/flutter/test/widgets/focus_scope_test.dart

@@ -1999,6 +1999,47 @@ void main() {
         ),
       );
     });
+
+    testWidgets('Focus widget gains input focus when it gains accessibility focus', (WidgetTester tester) async {
+      final SemanticsTester semantics = SemanticsTester(tester);
+      final SemanticsOwner semanticsOwner = tester.binding.pipelineOwner.semanticsOwner!;
+      final FocusNode focusNode = FocusNode();
+      addTearDown(focusNode.dispose);
+      await tester.pumpWidget(
+        Directionality(
+          textDirection: TextDirection.rtl,
+          child: Focus(
+            focusNode: focusNode,
+            child: const Text('Test'),
+          ),
+        ),
+      );
+
+      expect(
+        semantics,
+        hasSemantics(
+          TestSemantics.root(
+            children: <TestSemantics>[
+              TestSemantics(
+                id: 1,
+                flags: <SemanticsFlag>[SemanticsFlag.isFocusable],
+                actions: <SemanticsAction>[SemanticsAction.focus],
+                label: 'Test',
+                textDirection: TextDirection.rtl,
+              ),
+            ],
+          ),
+          ignoreRect: true,
+          ignoreTransform: true,
+        ),
+      );
+
+      expect(focusNode.hasFocus, isFalse);
+      semanticsOwner.performAction(1, SemanticsAction.focus);
+      await tester.pumpAndSettle();
+      expect(focusNode.hasFocus, isTrue);
+      semantics.dispose();
+    });
   });
 
   group('ExcludeFocus', () {

packages/flutter/test/widgets/focus_traversal_test.dart

@@ -3182,6 +3182,9 @@ void main() {
             flags: <SemanticsFlag>[
               SemanticsFlag.isFocusable,
             ],
+            actions: <SemanticsAction>[
+              SemanticsAction.focus,
+            ],
           ),
         ],
       );

packages/flutter/test/widgets/gesture_detector_semantics_test.dart

@@ -333,7 +333,7 @@ void main() {
         );
 
         expect(semantics, isNot(includesNodeWith(
-          actions: <SemanticsAction>[SemanticsAction.tap],
+          actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
         )));
 
         semantics.dispose();

packages/flutter/test/widgets/selectable_region_test.dart

@@ -260,7 +260,7 @@ void main() {
                               SemanticsFlag.isEnabled,
                               SemanticsFlag.isFocusable
                             ],
-                            actions: <SemanticsAction>[SemanticsAction.tap],
+                            actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus],
                             label: 'Button',
                             textDirection: TextDirection.ltr,
                           ),

packages/flutter_test/lib/src/matchers.dart

@@ -674,6 +674,7 @@ Matcher matchesSemantics({
   bool isExpanded = false,
   // Actions //
   bool hasTapAction = false,
+  bool hasFocusAction = false,
   bool hasLongPressAction = false,
   bool hasScrollLeftAction = false,
   bool hasScrollRightAction = false,
@@ -753,6 +754,7 @@ Matcher matchesSemantics({
     isExpanded: isExpanded,
     // Actions
     hasTapAction: hasTapAction,
+    hasFocusAction: hasFocusAction,
     hasLongPressAction: hasLongPressAction,
     hasScrollLeftAction: hasScrollLeftAction,
     hasScrollRightAction: hasScrollRightAction,
@@ -860,6 +862,7 @@ Matcher containsSemantics({
   bool? isExpanded,
   // Actions
   bool? hasTapAction,
+  bool? hasFocusAction,
   bool? hasLongPressAction,
   bool? hasScrollLeftAction,
   bool? hasScrollRightAction,
@@ -939,6 +942,7 @@ Matcher containsSemantics({
     isExpanded: isExpanded,
     // Actions
     hasTapAction: hasTapAction,
+    hasFocusAction: hasFocusAction,
     hasLongPressAction: hasLongPressAction,
     hasScrollLeftAction: hasScrollLeftAction,
     hasScrollRightAction: hasScrollRightAction,
@@ -2259,6 +2263,7 @@ class _MatchesSemanticsData extends Matcher {
     required bool? isExpanded,
     // Actions
     required bool? hasTapAction,
+    required bool? hasFocusAction,
     required bool? hasLongPressAction,
     required bool? hasScrollLeftAction,
     required bool? hasScrollRightAction,
@@ -2317,6 +2322,7 @@ class _MatchesSemanticsData extends Matcher {
         },
         actions = <SemanticsAction, bool>{
           if (hasTapAction != null) SemanticsAction.tap: hasTapAction,
+          if (hasFocusAction != null) SemanticsAction.focus: hasFocusAction,
           if (hasLongPressAction != null) SemanticsAction.longPress: hasLongPressAction,
           if (hasScrollLeftAction != null) SemanticsAction.scrollLeft: hasScrollLeftAction,
           if (hasScrollRightAction != null) SemanticsAction.scrollRight: hasScrollRightAction,
@@ -2379,8 +2385,8 @@ class _MatchesSemanticsData extends Matcher {
   final Map<SemanticsFlag, bool> flags;
 
   @override
-  Description describe(Description description) {
+  Description describe(Description description, [String? index]) {
-    description.add('has semantics');
+    description.add('${index == null ? '' : 'Child $index '}has semantics');
     if (label != null) {
       description.add(' with label: $label');
     }
@@ -2479,9 +2485,15 @@ class _MatchesSemanticsData extends Matcher {
       description.add(' with custom hints: $hintOverrides');
     }
     if (children != null) {
-      description.add(' with children:\n');
+      description.add(' with children:\n  ');
-      for (final _MatchesSemanticsData child in children!.cast<_MatchesSemanticsData>()) {
+      final List<_MatchesSemanticsData> childMatches = children!.cast<_MatchesSemanticsData>();
-        child.describe(description);
+      int childIndex = 1;
+      for (final _MatchesSemanticsData child in childMatches) {
+        child.describe(description, index != null ? '$index:$childIndex': '$childIndex');
+        if (child != childMatches.last) {
+          description.add('\n  ');
+        }
+        childIndex += 1;
       }
     }
     return description;

packages/flutter_test/test/matchers_test.dart

@@ -746,6 +746,7 @@ void main() {
          hasDidGainAccessibilityFocusAction: true,
          hasDidLoseAccessibilityFocusAction: true,
          hasDismissAction: true,
+         hasFocusAction: true,
          customActions: <CustomSemanticsAction>[action],
       ));
     });
@@ -1033,6 +1034,7 @@ void main() {
           hasDidGainAccessibilityFocusAction: true,
           hasDidLoseAccessibilityFocusAction: true,
           hasDismissAction: true,
+          hasFocusAction: true,
           customActions: <CustomSemanticsAction>[action],
         ),
       );
@@ -1125,6 +1127,7 @@ void main() {
           hasDidGainAccessibilityFocusAction: false,
           hasDidLoseAccessibilityFocusAction: false,
           hasDismissAction: false,
+          hasFocusAction: false,
         ),
       );
     });