Injection token for providing field signal context to mappers and components.

The field signal context is the "nervous system" of the dynamic form library, providing access to:

The form instance and structure
Current form values (as signals)
Default values
Validation messages
The injector for creating components

This token is provided by the DynamicForm component and can be scoped for nested forms (Groups, Arrays) via child injectors.

Presentation

const FIELD_SIGNAL_CONTEXT: InjectionToken<
  FieldSignalContext<Record<string, unknown>>
>;

Example usage

// In a mapper function
export function mapValueField(fieldDef: BaseValueField<any, any>): Binding[] {
  const context = inject(FIELD_SIGNAL_CONTEXT);
  const form = context.form();
  // ... use context
}

// In a component
export class MyFieldComponent {
  private context = inject(FIELD_SIGNAL_CONTEXT);
}