AiWidgetRegistry class

A name→widget allowlist for generative UI: the model emits a DataPart with a dataType discriminator and a JSON payload, and the registry maps it to a Flutter widget.

This is a deliberate allowlist — only registered dataTypes render (no reflection, no arbitrary instantiation), so a model can't conjure UI you didn't sanction. Unknown types fall back (see AiDataView).

Constructors

AiWidgetRegistry([Map<String, AiDataWidgetBuilder>? builders])

Creates a registry, optionally seeded with builders.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

types → Iterable<String>

The dataTypes with a registered builder.

no setter

Methods

build(BuildContext context, DataPart part) → Widget?

Builds the widget for part, or null if its dataType is not registered.

contains(String dataType) → bool

Whether a builder is registered for dataType.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

register(String dataType, AiDataWidgetBuilder builder) → AiWidgetRegistry

Registers builder for dataType, replacing any previous entry. Returns the registry for chaining.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited