* Manual merge or Dart into flutter a3815b6590...24c7666def
dart-lang/sdk@24c7666def Update tests that have the current version number hardcoded
dart-lang/sdk@f88ce7aef5 Increase Dart version to 2.10
* Update language version.
* Update license.
* Hpdate language version.
* Update license.
The underlying _updateNode call requires that all parameters be set
non-null. There's a single call site in the framework in
lib/src/semantics/semantics.dart in SemanticsNode.updateWith(). At that
call site, all parameters are either asserted non-null in the
constructor of SemanticsData or defaulted to null, with the sole
exception of textDirection.
The ergonomics of this method are currently pretty ugly and we should
consider migrating most of the defaulting and assertions that we apply
at the call site up to the definition in dart:ui. That work is filed as
https://github.com/flutter/flutter/issues/57720.
This adds an isFocusable to SemanticsFlag so that the framework can tell the engine what semantics nodes are allowed to be focused, which will affect what platform flags are applied to the semantics information.
This flag is not yet in use by the frame
This brings the Dart and C++ semantics flag enums back in sync.
In #5902, the ability to move the cursor forward and backward one word
were added to dart:ui, and to the Android embedder, but not to the
SemanticsAction enum on the C++ side.
This brings the Dart and C++ semantics flag enums back in sync.
In #5941, implicit scrolling support was added to SemanticsFlag in
dart:ui, and to the Android embedder, but not to the SemanticsFlags enum
on the C++ side.
This also clarifies/corrects the documentation for this value in dart:ui
and in the embedder API.
Flutter's accessibility APIs consist of three main calls from the
embedder to the Dart application:
1. FlutterEngineUpdateSemanticsEnabled: enables/disables semantics support.
2. FlutterEngineUpdateAccessibilityFeatures: sets embedder-specific
accessibility features.
3. FlutterEngineDispatchSemanticsAction: dispatches an action (tap,
long-press, scroll, etc.) to a semantics node.
and two main callbacks triggered by Dart code:
1. FlutterUpdateSemanticsNodeCallback: notifies the embedder of
updates to the properties of a given semantics node.
2. FlutterUpdateSemanticsCustomActionCallback: notifies the embedder
of updates to custom semantics actions registered in Dart code.
In the Flutter framework, when accessibility is first enabled, the
embedder will receive a stream of update callbacks notifying the
embedder of the full semantics tree. On further changes in the Dart
application, only updates will be sent.
* - Roll engine to version f9ebf2129732fd2b606286fdf58e500384b8a0bc
- Update @pragma directive for some classes in semantics.dart
* Update license file.
The `dart_vm_entry_points.txt` file is now deprecated in favor of annotations.
Support for parsing and generating the entry-points files will be removed from Dart shortly.
