Linkify 'see also' sections (flutter#150734)

Follow-up to flutter#150540.

Fixes flutter#150562.

packages/flutter/lib/src/gestures/monodrag.dart

@@ -81,8 +81,8 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
     this.velocityTrackerBuilder = _defaultBuilder,
     this.onlyAcceptDragOnThreshold = false,
     super.supportedDevices,
-    AllowedButtonsFilter? allowedButtonsFilter,
-  }) : super(allowedButtonsFilter: allowedButtonsFilter ?? _defaultButtonAcceptBehavior);
+    super.allowedButtonsFilter = _defaultButtonAcceptBehavior,
+  });
 
   static VelocityTracker _defaultBuilder(PointerEvent event) => VelocityTracker.withKind(event.kind);
 
@@ -146,7 +146,7 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   ///  * [DragDownDetails], which is passed as an argument to this callback.
   GestureDragDownCallback? onDown;
 
@@ -161,7 +161,7 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   ///  * [DragStartDetails], which is passed as an argument to this callback.
   GestureDragStartCallback? onStart;
 
@@ -183,7 +183,7 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   ///  * [DragUpdateDetails], which is passed as an argument to this callback.
   GestureDragUpdateCallback? onUpdate;
 
@@ -206,15 +206,15 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   ///  * [DragEndDetails], which is passed as an argument to this callback.
   GestureDragEndCallback? onEnd;
 
   /// The pointer that previously triggered [onDown] did not complete.
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   GestureDragCancelCallback? onCancel;
 
   /// The minimum distance an input pointer drag must have moved

packages/flutter/lib/src/gestures/multitap.dart

@@ -119,8 +119,8 @@ class DoubleTapGestureRecognizer extends GestureRecognizer {
   DoubleTapGestureRecognizer({
     super.debugOwner,
     super.supportedDevices,
-    AllowedButtonsFilter? allowedButtonsFilter,
-  }) : super(allowedButtonsFilter: allowedButtonsFilter ?? _defaultButtonAcceptBehavior);
+    super.allowedButtonsFilter = _defaultButtonAcceptBehavior,
+  });
 
   // The default value for [allowedButtonsFilter].
   // Accept the input if, and only if, [kPrimaryButton] is pressed.
@@ -161,7 +161,7 @@ class DoubleTapGestureRecognizer extends GestureRecognizer {
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   ///  * [TapDownDetails], which is passed as an argument to this callback.
   ///  * [GestureDetector.onDoubleTapDown], which exposes this callback.
   GestureTapDownCallback? onDoubleTapDown;
@@ -174,7 +174,7 @@ class DoubleTapGestureRecognizer extends GestureRecognizer {
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   ///  * [GestureDetector.onDoubleTap], which exposes this callback.
   GestureDoubleTapCallback? onDoubleTap;
 
@@ -188,7 +188,7 @@ class DoubleTapGestureRecognizer extends GestureRecognizer {
   ///
   /// See also:
   ///
-  ///  * `allowedButtonsFilter`, which decides which button will be allowed.
+  ///  * [allowedButtonsFilter], which decides which button will be allowed.
   ///  * [GestureDetector.onDoubleTapCancel], which exposes this callback.
   GestureTapCancelCallback? onDoubleTapCancel;
 

packages/flutter/lib/src/gestures/recognizer.dart

@@ -101,7 +101,8 @@ enum MultitouchDragStrategy {
   sumAllPointers,
 }
 
-/// Signature for `allowedButtonsFilter` in [GestureRecognizer].
+/// Signature for [GestureRecognizer.allowedButtonsFilter].
+///
 /// Used to filter the input buttons of incoming pointer events.
 /// The parameter `buttons` comes from [PointerEvent.buttons].
 typedef AllowedButtonsFilter = bool Function(int buttons);
@@ -132,8 +133,8 @@ abstract class GestureRecognizer extends GestureArenaMember with DiagnosticableT
   GestureRecognizer({
     this.debugOwner,
     this.supportedDevices,
-    AllowedButtonsFilter? allowedButtonsFilter,
-  }) : _allowedButtonsFilter = allowedButtonsFilter ?? _defaultButtonAcceptBehavior {
+    this.allowedButtonsFilter = _defaultButtonAcceptBehavior,
+  }) {
     // TODO(polina-c): stop duplicating code across disposables
     // https://github.com/flutter/flutter/issues/137435
     if (kFlutterMemoryAllocationsEnabled) {
@@ -178,7 +179,7 @@ abstract class GestureRecognizer extends GestureArenaMember with DiagnosticableT
   ///
   /// Defaults to all buttons.
   /// {@endtemplate}
-  final AllowedButtonsFilter _allowedButtonsFilter;
+  final AllowedButtonsFilter allowedButtonsFilter;
 
   // The default value for [allowedButtonsFilter].
   // Accept any input.
@@ -271,9 +272,8 @@ abstract class GestureRecognizer extends GestureArenaMember with DiagnosticableT
   /// Checks whether or not a pointer is allowed to be tracked by this recognizer.
   @protected
   bool isPointerAllowed(PointerDownEvent event) {
-    return (supportedDevices == null ||
-            supportedDevices!.contains(event.kind)) &&
-        _allowedButtonsFilter(event.buttons);
+    return (supportedDevices == null || supportedDevices!.contains(event.kind))
+        && allowedButtonsFilter(event.buttons);
   }
 
   /// Handles a pointer pan/zoom being added that's not allowed by this recognizer.

packages/flutter/lib/src/gestures/tap.dart

@@ -354,7 +354,7 @@ abstract class BaseTapGestureRecognizer extends PrimaryPointerGestureRecognizer
 /// no-op.
 ///
 /// {@template flutter.gestures.tap.TapGestureRecognizer.allowedButtonsFilter}
-/// The `allowedButtonsFilter` argument only gives this recognizer the
+/// The [allowedButtonsFilter] argument only gives this recognizer the
 /// ability to limit the buttons it accepts. It does not provide the
 /// ability to recognize any buttons beyond the ones it already accepts:
 /// kPrimaryButton, kSecondaryButton or kTertiaryButton. Therefore, a

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

@@ -137,10 +137,10 @@ class Switch extends StatelessWidget {
   /// is iOS or macOS, otherwise a Material Design switch is created.
   ///
   /// To provide a custom switch theme that's only used by this factory
-  /// constructor, add a custom `Adaptation<SwitchThemeData>` class to
-  /// `ThemeData.adaptations`. This can be useful in situations where you don't
-  /// want the overall [ThemeData.switchTheme] to apply when this adaptive
-  /// constructor is used.
+  /// constructor, pass a custom `Adaptation<SwitchThemeData>` class to the
+  /// `adaptations` parameter of [ThemeData]. This can be useful in situations
+  /// where you don't want the overall [ThemeData.switchTheme] to apply when
+  /// this adaptive constructor is used.
   ///
   /// {@tool dartpad}
   /// This sample shows how to create and use subclasses of [Adaptation] that

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

@@ -87,11 +87,12 @@ class Adaptation<T> {
   /// ThemeData class, like [SwitchThemeData], instead of the defaultValue.
   ///
   /// Factory constructors that support adaptations - currently only
-  /// [Switch.adaptive] - look for a `ThemeData.adaptations` member of the expected
-  /// type when computing their effective default component theme. If a matching
-  /// adaptation is not found, the component may choose to use a default adaptation.
-  /// For example, the [Switch.adaptive] component uses an empty [SwitchThemeData]
-  /// if a matching adaptation is not found, for the sake of backwards compatibility.
+  /// [Switch.adaptive] - look for a type-specific adaptation in
+  /// [ThemeData.adaptationMap] when computing their effective default component
+  /// theme. If a matching adaptation is not found, the component may choose to
+  /// use a default adaptation. For example, the [Switch.adaptive] component
+  /// uses an empty [SwitchThemeData] if a matching adaptation is not found, for
+  /// the sake of backwards compatibility.
   ///
   /// {@tool dartpad}
   /// This sample shows how to create and use subclasses of [Adaptation] that