FxUndoScope class

Provides an FxUndoController to a widget subtree.

Inheritance

• Object
• DiagnosticableTree
• Widget
• ProxyWidget
• InheritedWidget
• InheritedNotifier<FxUndoController>
• FxUndoScope

Constructors

FxUndoScope({Key? key, required FxUndoController controller, required Widget child})

Creates an undo scope.

const

Properties

child → Widget

The widget below this widget in the tree.

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

notifier → FxUndoController?

The Listenable object to which to listen.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

createElement() → InheritedElement

Inflates this configuration to a concrete instance.

inherited

debugDescribeChildren() → List<DiagnosticsNode>

Returns a list of DiagnosticsNode objects describing this node's children.

inherited

debugFillProperties(DiagnosticPropertiesBuilder properties) → void

Add additional properties associated with the node.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode

Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.

inherited

toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String

A string representation of this object.

inherited

toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String

Returns a string representation of this node and its descendants.

inherited

toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a one-line detailed description of the object.

inherited

toStringShort() → String

A short, textual description of this widget.

inherited

updateShouldNotify(covariant InheritedNotifier<FxUndoController> oldWidget) → bool

Whether the framework should notify widgets that inherit from this widget.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

maybeOf(BuildContext context) → FxUndoController?

Returns the nearest undo controller, or null when no scope exists.

of(BuildContext context) → FxUndoController

Returns the nearest undo controller.