Label, Help, FieldError

Field renders these for you. Import them when you assemble a field yourself, or to change the words without touching the schema.

#Preview

#Usage

import { Form, Label, Help, FieldControl, FieldError, Submit } from '@trymirio/mirio';

<Form schema={schema} client={mirio}>
  <div className="flex flex-col gap-1.5">
    <Label name="company">Company name</Label>   {/* children override the schema label */}
    <Help name="company" />
    <FieldControl name="company" />
    <FieldError name="company" />
  </div>
  <Submit />
</Form>

#Props

#Label

Prop	Type	Default	Description
name	string	required	The field key.
children	ReactNode	field.label	Replaces the label text.
requiredIndicator	ReactNode | null	from Form/MirioProvider, else nothing	What to append when field.required.
optionalIndicator	ReactNode | null	from Form/MirioProvider, else a small muted "Optional"	What to append when the field isn't required; null renders nothing.
className	string	text-sm font-medium leading-none text-mirio-fg	Merged onto the element.
…<label> attributes			Spread on the <label>.

Renders <label for="<control id>" id="<label id>" data-mirio="label">. For grouped controls (single_choice, multiple_choice, yes_no, rating) it renders a <span id data-mirio="label"> instead, because the group is labelled through aria-labelledby rather than for.

#Help

Prop	Type	Default	Description
name	string	required	The field key.
children	ReactNode	field.help	Replaces the help text. Renders nothing when there is none.
className	string	text-sm text-mirio-muted-fg	Merged onto the <p>.
…<p> attributes			Spread on the <p>.

Renders <p id="<help id>" data-mirio="help">; the id is in the control's aria-describedby. Field places it under the label, and under the checkbox row for consent fields.

#FieldError

Prop	Type	Default	Description
name	string	required	The field key.
className	string	text-sm text-mirio-error	Merged onto the <p>.
…<p> attributes			Spread on the <p>.

Renders <p id="<error id>" role="alert" data-mirio="error">message</p> while the field has an error, nothing otherwise. Messages come from Mirio's validator (client and server use the same one), e.g. "This field is required", "Enter a valid email address", "Choose at most 2".

#Variants and states

Required and optional marks (since 0.1.3): by default optional fields get a small, muted "Optional" after the label and required fields get no mark. Most fields on a short form are required, so a mark on each says little; screen readers hear "Optional" with the label, and required controls carry aria-required. Set either mark once for every form, or per label:

<Form schema={schema} client={mirio}>            // the default
  <Field name="email" />
</Form>

<MirioProvider
  client={mirio}
  requiredIndicator={<span aria-hidden className="ml-0.5 text-mirio-error">*</span>}   // asterisks instead
  optionalIndicator={null}
>
  <Form schema={schema}>…</Form>
</MirioProvider>

<Label name="company" optionalIndicator={null}>Company</Label>   // one label

Resolution order for each: the Label prop, then the nearest Form/MirioProvider that set one, then the default (nothing for required, "Optional" for optional). A required consent checkbox uses requiredIndicator; an optional one has no mark.

#Customization

• Tokens: --mirio-fg (label), --mirio-muted-fg (help and the "Optional" mark), --mirio-error (error).
• className="text-base font-semibold" on Label replaces the size and weight. FieldError with className="text-xs" shrinks the message.
• CSS hooks: [data-mirio="label"], [data-mirio="help"], [data-mirio="error"].
• Label and help text are part of the schema (and its hash): changing them is a schema change that mirio push records as a new version; overriding with children is a display-only change.

#Accessibility

Label targets the control with for (or labels a group through aria-labelledby). Help and FieldError ids are joined into the control's aria-describedby, so screen readers read help on focus and the error with the control. FieldError is a live region (role="alert"), so a new message is announced when it appears, and Mirio also moves focus to the first invalid control after a failed submit. The default * is aria-hidden; required state is conveyed by aria-required on the control.

#Related

Field, MirioProvider, Consent, Headless: useField