ngx-forms-form-accessor

name	ngx-forms-form-accessor
description	FormAccessor, DataFormAccessor, and createAccessorProviders from @ibenvandeveire/ngx-forms for reusable ControlValueAccessor components.

ngx-forms — FormAccessor

Install: npm install @ibenvandeveire/ngx-forms.

Abstract CVA layer with defaults for writeValue, validate, setDisabledState, markAsTouched, markAsPristine.

Base

export class MyComponent extends FormAccessor<FormDataType, FormControlType> {
  initForm(): FormGroup {
    return new FormGroup({ foo: new FormControl(), bar: new FormControl() });
  }
}

External vs internal shape

Third generic InternalFormDataType + optional mappers:

• onWriteValueMapper — API → form UI
• onChangeMapper — form UI → API

disableFields

disableFields input — disable specific keys; optional emitValueWhenDisableFieldsUsingInput.

setDisableState

First setDisableState ignored by default (Angular always calls it). Set skipInitialSetDisable: false to opt out.

DataFormAccessor

data input drives initForm (e.g. dynamic control lists).

createAccessorProviders

Registers NG_VALUE_ACCESSOR + NG_VALIDATORS. Prefer over manual providers.

FormAccessorContainer

• Manual providers: also provide BaseFormAccessor with useExisting: forwardRef(…).
• updateValueAndValidity() — recursive on nested accessors.
• Skip BaseFormAccessor when using createAccessorProviders.