Time picker precursors (#116450)

* Make some minor changes in preparation for updating the Time Picker to M3

* Revert OutlineInputBorder.borderRadius type change

* Revert more OutlineInputBorder.borderRadius changes.

dev/tools/gen_defaults/lib/snackbar_template.dart

@@ -67,10 +67,6 @@ class _${blockName}DefaultsM3 extends SnackBarThemeData {
 
   @override
   bool get showCloseIcon => false;
-
-  @override
-  Color get iconColor => _colors.onInverseSurface;
 }
-
 ''';
 }

dev/tools/gen_defaults/lib/template.dart

@@ -26,7 +26,7 @@ abstract class TokenTemplate {
   /// Defaults to 'Theme.of(context).colorScheme.'
   final String colorSchemePrefix;
 
-  /// Optional prefix prepended to text style definitians.
+  /// Optional prefix prepended to text style definitions.
   ///
   /// Defaults to 'Theme.of(context).textTheme.'
   final String textThemePrefix;
@@ -145,13 +145,17 @@ abstract class TokenTemplate {
   }
 
   /// Generate the opacity value for the given token.
-  String? opacity(String token) {
-    final dynamic value = tokens[token];
+  String? opacity(String token) => _numToString(tokens[token]);
+
+  String? _numToString(Object? value, [int? digits]) {
     if (value == null) {
       return null;
     }
-    if (value is double) {
-      return value.toString();
+    if (value is num) {
+      if (value == double.infinity) {
+        return 'double.infinity';
+      }
+      return digits == null ? value.toString() : value.toStringAsFixed(digits);
     }
     return tokens[value].toString();
   }
@@ -161,6 +165,24 @@ abstract class TokenTemplate {
     return tokens[tokens['$componentToken.elevation']!]!.toString();
   }
 
+  /// Generate a size value for the given component token.
+  ///
+  /// Non-square sizes are specified as width and height.
+  String size(String componentToken) {
+    final String sizeToken = '$componentToken.size';
+    if (!tokens.containsKey(sizeToken)) {
+      final String widthToken = '$componentToken.width';
+      final String heightToken = '$componentToken.height';
+      if (!tokens.containsKey(widthToken) && !tokens.containsKey(heightToken)) {
+        throw Exception('Unable to find width, height, or size tokens for $componentToken');
+      }
+      final String? width = _numToString(tokens.containsKey(widthToken) ? tokens[widthToken]! as num : double.infinity, 0);
+      final String? height = _numToString(tokens.containsKey(heightToken) ? tokens[heightToken]! as num : double.infinity, 0);
+      return 'const Size($width, $height)';
+    }
+    return 'const Size.square(${_numToString(tokens[sizeToken])})';
+  }
+
   /// Generate a shape constant for the given component token.
   ///
   /// Currently supports family:

packages/flutter/lib/src/material/material_state.dart

@@ -409,7 +409,6 @@ abstract class MaterialStateOutlinedBorder extends OutlinedBorder implements Mat
   OutlinedBorder? resolve(Set<MaterialState> states);
 }
 
-
 /// Defines a [TextStyle] that is also a [MaterialStateProperty].
 ///
 /// This class exists to enable widgets with [TextStyle] valued properties

packages/flutter/lib/src/material/menu_anchor.dart

@@ -3572,6 +3572,7 @@ class _MenuBarDefaultsM3 extends MenuStyle {
       shape: const MaterialStatePropertyAll<OutlinedBorder>(_defaultMenuBorder),
       alignment: AlignmentDirectional.bottomStart,
     );
+
   static const RoundedRectangleBorder _defaultMenuBorder =
     RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(4.0)));
 
@@ -3614,6 +3615,7 @@ class _MenuButtonDefaultsM3 extends ButtonStyle {
       enableFeedback: true,
       alignment: AlignmentDirectional.centerStart,
     );
+
   final BuildContext context;
 
   late final ColorScheme _colors = Theme.of(context).colorScheme;
@@ -3756,6 +3758,7 @@ class _MenuDefaultsM3 extends MenuStyle {
       shape: const MaterialStatePropertyAll<OutlinedBorder>(_defaultMenuBorder),
       alignment: AlignmentDirectional.topEnd,
     );
+
   static const RoundedRectangleBorder _defaultMenuBorder =
     RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(4.0)));
 

packages/flutter/lib/src/material/snack_bar.dart

@@ -883,10 +883,6 @@ class _SnackbarDefaultsM3 extends SnackBarThemeData {
 
   @override
   bool get showCloseIcon => false;
-
-  @override
-  Color get closeIconColor => _colors.onInverseSurface;
 }
 
-
 // END GENERATED TOKEN PROPERTIES - Snackbar

packages/flutter/test/painting/system_fonts_test.dart

@@ -283,8 +283,8 @@ void main() {
     final RenderObject renderObject = tester.renderObject(
       find.descendant(
         of: find.byKey(const Key('parent')),
-        matching: find.byType(CustomPaint),
-      ).first,
+        matching: find.byKey(const ValueKey<String>('time-picker-dial')),
+      ),
     );
     expect(renderObject.debugNeedsPaint, isTrue);
   });