Add fadeDuration back to TextSelectionOverlay (#100381)

* Add fadeDuration back to TextSelectionOverlay

* fix build and add dart fix

* format

* add test

packages/flutter/lib/fix_data.yaml

@@ -17,6 +17,20 @@
 
 version: 1
 transforms:
+  # Changes made in https://github.com/flutter/flutter/pull/100381
+  - title: "Migrate 'TextSelectionOverlay.fadeDuration' to SelectionOverlay.fadeDuration"
+    date: 2022-03-18
+    element:
+      uris: [ 'widgets.dart', 'material.dart', 'cupertino.dart' ]
+      field: 'fadeDuration'
+      inClass: 'TextSelectionOverlay'
+    changes:
+      - kind: 'replacedBy'
+        newElement:
+          uris: [ 'widgets.dart', 'material.dart', 'cupertino.dart' ]
+          field: 'fadeDuration'
+          inClass: 'SelectionOverlay'
+
   # Changes made in https://github.com/flutter/flutter/pull/96174
   - title: "Migrate 'useDeleteButtonTooltip' to 'deleteButtonTooltipMessage'"
     date: 2022-01-05

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

@@ -303,6 +303,13 @@ class TextSelectionOverlay {
     );
   }
 
+  /// Controls the fade-in and fade-out animations for the toolbar and handles.
+  @Deprecated(
+    'Use `SelectionOverlay.fadeDuration` instead. '
+    'This feature was deprecated after v2.12.0-4.1.pre.'
+  )
+  static const Duration fadeDuration = SelectionOverlay.fadeDuration;
+
   // TODO(mpcomplete): what if the renderObject is removed or replaced, or
   // moves? Not sure what cases I need to handle, or how to handle them.
   /// The editable line in which the selected text is being displayed.

packages/flutter/test/widgets/text_selection_test.dart

@@ -91,6 +91,10 @@ void main() {
     );
   }
 
+  test('TextSelectionOverlay.fadeDuration exist', () async {
+    expect(TextSelectionOverlay.fadeDuration, SelectionOverlay.fadeDuration);
+  });
+
   testWidgets('a series of taps all call onTaps', (WidgetTester tester) async {
     await pumpGestureDetector(tester);
     await tester.tapAt(const Offset(200, 200));

packages/flutter/test_fixes/cupertino.dart

@@ -226,4 +226,7 @@ void main() {
   bool nowShowing = scrollbar.isAlwaysShown;
   RawScrollbar rawScrollbar = RawScrollbar(isAlwaysShown: true);
   nowShowing = rawScrollbar.isAlwaysShown;
+
+  // Change made in https://github.com/flutter/flutter/pull/100381
+  TextSelectionOverlay.fadeDuration;
 }

packages/flutter/test_fixes/cupertino.dart.expect

@@ -226,4 +226,7 @@ void main() {
   bool nowShowing = scrollbar.thumbVisibility;
   RawScrollbar rawScrollbar = RawScrollbar(thumbVisibility: true);
   nowShowing = rawScrollbar.thumbVisibility;
+
+  // Change made in https://github.com/flutter/flutter/pull/100381
+  SelectionOverlay.fadeDuration;
 }

packages/flutter/test_fixes/material.dart

@@ -551,4 +551,7 @@ void main() {
   rawChip = RawChip(useDeleteButtonTooltip: true);
   rawChip = RawChip(useDeleteButtonTooltip: false, deleteButtonTooltipMessage: 'Delete Tooltip');
   rawChip.useDeleteButtonTooltip;
+
+  // Change made in https://github.com/flutter/flutter/pull/100381
+  TextSelectionOverlay.fadeDuration;
 }

packages/flutter/test_fixes/material.dart.expect

@@ -524,4 +524,7 @@ void main() {
   rawChip = RawChip();
   rawChip = RawChip(deleteButtonTooltipMessage: 'Delete Tooltip');
   rawChip.deleteButtonTooltipMessage;
+
+  // Change made in https://github.com/flutter/flutter/pull/100381
+  SelectionOverlay.fadeDuration;
 }

packages/flutter/test_fixes/widgets.dart

@@ -181,4 +181,7 @@ void main() {
   // Changes made in https://github.com/flutter/flutter/pull/96957
   RawScrollbar rawScrollbar = RawScrollbar(isAlwaysShown: true);
   nowShowing = rawScrollbar.isAlwaysShown;
+
+  // Change made in https://github.com/flutter/flutter/pull/100381
+  TextSelectionOverlay.fadeDuration;
 }

packages/flutter/test_fixes/widgets.dart.expect

@@ -181,4 +181,7 @@ void main() {
   // Changes made in https://github.com/flutter/flutter/pull/96957
   RawScrollbar rawScrollbar = RawScrollbar(thumbVisibility: true);
   nowShowing = rawScrollbar.thumbVisibility;
+
+  // Change made in https://github.com/flutter/flutter/pull/100381
+  SelectionOverlay.fadeDuration;
 }