NodeFlowActionDispatcher<T> class

A Flutter Action that dispatches to NodeFlow actions based on intent actionId.

This class acts as a dispatcher that bridges Flutter's Actions framework with NodeFlow's action system. It receives NodeFlowActionIntents and dispatches them to the appropriate NodeFlowAction based on the intent's actionId.

The dispatcher:

  • Looks up the appropriate NodeFlowAction using the intent's actionId
  • Checks if the action can be executed before invoking it
  • Executes the action with the controller and optional context

This design allows all NodeFlow actions to be handled by a single Flutter Action, which is compatible with Flutter's type-based action registration system.

Example usage:

final dispatcher = NodeFlowActionDispatcher(controller);
actions[NodeFlowActionIntent] = dispatcher;

See also:

Inheritance

Constructors

NodeFlowActionDispatcher(NodeFlowController<T> controller)
Creates a NodeFlow action dispatcher.

Properties

callingAction → Action<NodeFlowActionIntent<T>>?
The Action overridden by this Action.
no setterinherited
controller → NodeFlowController<T>
The controller that actions operate on.
final
hashCode → int
The hash code for this object.
no setterinherited
intentType → Type
Gets the type of intent this action responds to.
no setterinherited
isActionEnabled → bool
Whether this Action is inherently enabled.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addActionListener(ActionListenerCallback listener) → void
Register a callback to listen for changes to the state of this action.
inherited
consumesKey(NodeFlowActionIntent<T> intent) → bool
Indicates whether this action should treat key events mapped to this action as being "handled" when it is invoked via the key event.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
invoke(NodeFlowActionIntent<T> intent) → Object?
Dispatches the intent to the appropriate NodeFlow action.
override
isEnabled(NodeFlowActionIntent<T> intent) → bool
Checks if the action specified in the intent can currently be executed.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyActionListeners() → void
Call all the registered listeners.
inherited
removeActionListener(ActionListenerCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
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
toKeyEventResult(NodeFlowActionIntent<T> intent, covariant Object? invokeResult) → KeyEventResult
Converts the result of invoke of this action to a KeyEventResult.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringShort() → String
A brief description of this object, usually just the runtimeType and the hashCode.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited