Implements a PlatformMenuBar widget and associated data structures for defining menu bars that use native APIs for rendering.
This PR includes:
A PlatformMenuBar class, which is a widget that menu bar data can be attached to for sending to the platform.
A PlatformMenuDelegate base, which is the type taken by a new WidgetsBinding.platformMenuDelegate.
An implementation of the above in DefaultPlatformMenuDelegate that talks to the built-in "flutter/menu" channel to talk to the built-in platform implementation. The delegate is so that a plugin could override with its own delegate and provide other platforms with native menu support using the same widgets to define the menus.
This is the framework part of the implementation. The engine part will be in flutter/engine#32080 (and flutter/engine#32358)
Text editing shortcuts involving the arrow keys are no longer handled by RenderEditable's RawKeyboardListener, they use the new Shortcuts setup. First PR in a plan to port all text editing keyboard handling to shortcuts.
* Making a custom iOS-style text selection menu is now much easier.
* Exposes a new widget for the toolbar, a new widget for the buttons, and a new widget for the layout.
* Reland "Nnbd widgets (#64672)"
This reverts commit 127e67902e8bbb0dcbfb3351b8fd00f7cbdf0178.
* remove non-nullable enforcement on AsyncSnapshot
* make data param non-nullable for AsyncSnapshot.withData
* make some Text params non-nullable
* migrate widget to nullsafety
* remove double blank line after license
* address review comments in actions.dart
* nullable ObjectKey.value
* use local variable oldElement
* make State.build non-nullable
* make State.context non-nullable
* newline at eof
* make ProxyWidget.child non-nullable
* make _InactiveElements.debugContains non-nullable
* make Element.depth non-nullable
* make ProxyElement.build non-nullable
* make StatefulElement.state non-nullable
* remove 'Notice that'
* avoid cast of list in RenderObjectElement.updateChildren
* make IndexedSlot.value non-nullable
* avoid cast of list in MultiChildRenderObjectElement.mount
* make some WidgetsApp parameters non-nullable
* hitTest take non-nullable position
* make ScrollableState.position non-nullable
* use _pixels instead of pixels
* make ViewportOffset.pixels non-nullable
* make param and return type of IndexedWidgetBuilder non-nullable
* unused_import
* make context param non-nullable for Builder in animated_list.dart
* make ScrollMetrics.viewportDimension non-nullable
* make ScrollMetrics.{min,max}ScrollExtent non-nullable
* make _Location.file non-nullable
* _WidgetForTypeTests.createElement throw UnimplementedError
* update _NullWidget.build error message
* make _ShortcutsState.manager non-nullable
* Fix childCount issues for NNBD
* fix childCount computation on web
* increase max value on js side to compute childCount
* make aspect parameter of dependOnInheritedWidgetOfExactType nullable
* merge has{min,max}ScrollExtent into hasScrollExtents
* update focus_manager.dart
* address review comments in icon.dart
* address review comments in image.dart
* address review comments in routes.dart
* address review comments in scroll_activity.dart
* update doc comments
* make UserScrollNotification.direction non-nullable and required
* rename hasScrollExtents to hasContentDimensions
* unnecessary late
Co-authored-by: Ian Hickson <ian@hixie.ch>
