# PhoneNumberField

Das PhoneNumberField ermöglicht die Eingabe von Telefonnummern in beliebigem Format. Eingaben werden automatisch normalisiert und validiert — Leerzeichen und Ländervorwahl muss der User nicht in einem bestimmten Format eingeben.

## Overview

# Playground

Verwende `<PhoneNumberField />`, um Telefonnummern einzugeben. Die Component
basiert auf [libphonenumber-js](https://www.npmjs.com/package/libphonenumber-js)
und wird über den Export `@mittwald/flow-react-components/phone-tools`
bereitgestellt.

Eingaben werden unabhängig von Leerzeichen und Formatierung verstanden. Über
`onChange` liefert die Component gültige Nummern immer im E.164-Format (z. B.
`+495772293100`); beim Verlassen des Felds wird die Anzeige international
formatiert.

```tsx
import {
  FieldError,
  Label,
} from "@mittwald/flow-react-components";
import { PhoneNumberField } from "@mittwald/flow-react-components/phone-tools";

export default () => (
  <PhoneNumberField>
    <Label>Telefonnummer</Label>
    <FieldError />
  </PhoneNumberField>
)
```

---

# Ländervorwahl

Nummern ohne Ländervorwahl werden über `defaultCountry` interpretiert (Standard:
`DE`). Nummern mit `+`-Präfix werden unabhängig davon automatisch erkannt.

```tsx
import {
  FieldDescription,
  FieldError,
  Label,
} from "@mittwald/flow-react-components";
import { PhoneNumberField } from "@mittwald/flow-react-components/phone-tools";

export default () => (
  <PhoneNumberField defaultCountry="AT">
    <Label>Telefonnummer</Label>
    <FieldDescription>
      Nummern ohne Vorwahl werden als österreichisch (+43)
      interpretiert
    </FieldDescription>
    <FieldError />
  </PhoneNumberField>
)
```

---

# Validierung

Ungültige Telefonnummern invalidieren das Feld automatisch. Mittels
`<FieldError />` wird die Fehlermeldung angezeigt; eigene Validierungen können
zusätzlich über `validate` ergänzt werden und erhalten die normalisierte Nummer.

```tsx
import {
  FieldError,
  Label,
} from "@mittwald/flow-react-components";
import { PhoneNumberField } from "@mittwald/flow-react-components/phone-tools";

export default () => (
  <PhoneNumberField defaultValue="12345" isRequired>
    <Label>Telefonnummer</Label>
    <FieldError />
  </PhoneNumberField>
)
```


## Develop

# Properties

| Property | Type | Default | Description |
| --- | --- | --- | --- |
| `defaultCountry` | `CountryCode` | `"DE"` | The country used to interpret phone numbers entered without a country calling code. Numbers entered with a "+" prefix are detected automatically. |
| `id` | `string` | - | The element's unique identifier. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/id). |
| `children` | `ReactNode` | - | - |
| `translate` | `"yes" \| "no"` | - | - |
| `className` | `ClassNameOrFunction<TextFieldRenderProps>` | `'react-aria-TextField'` | The CSS [className](https://developer.mozilla.org/en-US/docs/Web/API/Element/className) for the element. A function may be provided to compute the class based on component state. |
| `style` | `StyleOrFunction<TooltipRenderProps>` | - | The inline [style](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style) for the element. A function may be provided to compute the style based on component state. |
| `render` | `DOMRenderFunction<"div", TooltipRenderProps>` | - | Overrides the default DOM element with a custom render function. This allows rendering existing components with built-in styles and behaviors such as router links, animation libraries, and pre-styled components. Requirements: - You must render the expected element type (e.g. if `<button>` is expected, you cannot render an `<a>`). - Only a single root DOM element can be rendered (no fragments). - You must pass through props and ref to the underlying DOM element, merging with your own prop as appropriate. |
| `dir` | `string` | - | - |
| `lang` | `string` | - | - |
| `hidden` | `boolean` | - | - |
| `inert` | `boolean` | - | - |
| `wrapWith` | `ReactElement<unknown, string \| JSXElementConstructor<any>>` | - | - |
| `ref` | `Ref<HTMLSpanElement>` | - | Allows getting a ref to the component instance. Once the component unmounts, React will set `ref.current` to `null` (or call the ref with `null` if you passed a callback ref). @see [React Docs](https://react.dev/learn/referencing-values-with-refs#refs-and-the-dom) |
| `key` | `Key` | - | - |
| `validationBehavior` | `"native" \| "aria"` | `'native'` | Whether to use native HTML form validation to prevent form submission when the value is missing or invalid, or mark the field as required or invalid via ARIA. |
| `isDisabled` | `boolean` | - | Whether the input is disabled. |
| `isReadOnly` | `boolean` | - | Whether the input can be selected but not changed by the user. |
| `isRequired` | `boolean` | - | Whether user input is required on the input before form submission. |
| `isInvalid` | `boolean` | - | Whether the value is invalid. |
| `validate` | `((value: TimeValue) => true \| ValidationError)` | - | A function that returns an error message if a given value is invalid. Validation errors are displayed to the user when the form is submitted if `validationBehavior="native"`. For realtime validation, use the `isInvalid` prop instead. |
| `autoFocus` | `boolean` | - | Whether the element should receive focus on render. |
| `value` | `TimeValue` | - | The current value (controlled). |
| `defaultValue` | `TimeValue` | - | The default value (uncontrolled). |
| `name` | `string` | - | The name of the input element, used when submitting an HTML form. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#htmlattrdefname). |
| `form` | `string` | - | The `<form>` element to associate the input with. The value of this attribute must be the id of a `<form>` in the same document. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/input#form). |
| `slot` | `string` | - | A slot name for the component. Slots allow the component to receive props from a parent component. An explicit `null` value indicates that the local props completely override all props received from a parent. |
| `placeholder` | `string` | - | Temporary text that occupies the text input when it is empty. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes/placeholder). |
| `enterKeyHint` | `"enter" \| "done" \| "go" \| "next" \| "previous" \| "search" \| "send"` | - | An enumerated attribute that defines what action label or icon to preset for the enter key on virtual keyboards. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/enterkeyhint). |
| `excludeFromTabOrder` | `boolean` | - | Whether to exclude the element from the sequential tab order. If true, the element will not be focusable via the keyboard by tabbing. This should be avoided except in rare scenarios where an alternative means of accessing the element or its functionality via the keyboard is available. |
| `autoComplete` | `string` | - | Describes the type of autocomplete functionality the input should provide if any. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#htmlattrdefautocomplete). |
| `maxLength` | `number` | - | The maximum number of characters supported by the input. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#htmlattrdefmaxlength). |
| `minLength` | `number` | - | The minimum number of characters required by the input. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#htmlattrdefminlength). |
| `pattern` | `string` | - | Regex pattern that the value of the input must match to be valid. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#htmlattrdefpattern). |
| `inputMode` | `"text" \| "none" \| "search" \| "url" \| "tel" \| "email" \| "numeric" \| "decimal"` | - | Hints at the type of data that might be entered by the user while editing the element or its contents. See [MDN](https://html.spec.whatwg.org/multipage/interaction.html#input-modalities:-the-inputmode-attribute). |
| `autoCorrect` | `string` | - | An attribute that takes as its value a space-separated string that describes what, if any, type of autocomplete functionality the input should provide. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#autocomplete). |
| `spellCheck` | `string` | - | An enumerated attribute that defines whether the element may be checked for spelling errors. See [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/spellcheck). |

### Events

| Property | Type | Default | Description |
| --- | --- | --- | --- |
| `onClick` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onClickCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onAuxClick` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onAuxClickCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onContextMenu` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onContextMenuCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onDoubleClick` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onDoubleClickCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseDown` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseDownCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseEnter` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseLeave` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseMove` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseMoveCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseOut` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseOutCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseOver` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseOverCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseUp` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onMouseUpCapture` | `MouseEventHandler<HTMLDivElement>` | - | - |
| `onTouchCancel` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onTouchCancelCapture` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onTouchEnd` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onTouchEndCapture` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onTouchMove` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onTouchMoveCapture` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onTouchStart` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onTouchStartCapture` | `TouchEventHandler<HTMLDivElement>` | - | - |
| `onPointerDown` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerDownCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerMove` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerMoveCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerUp` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerUpCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerCancel` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerCancelCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerEnter` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerLeave` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerOver` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerOverCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerOut` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onPointerOutCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onGotPointerCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onGotPointerCaptureCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onLostPointerCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onLostPointerCaptureCapture` | `PointerEventHandler<HTMLDivElement>` | - | - |
| `onScroll` | `UIEventHandler<HTMLDivElement>` | - | - |
| `onScrollCapture` | `UIEventHandler<HTMLDivElement>` | - | - |
| `onWheel` | `WheelEventHandler<HTMLDivElement>` | - | - |
| `onWheelCapture` | `WheelEventHandler<HTMLDivElement>` | - | - |
| `onAnimationStart` | `AnimationEventHandler<HTMLDivElement>` | - | - |
| `onAnimationStartCapture` | `AnimationEventHandler<HTMLDivElement>` | - | - |
| `onAnimationEnd` | `AnimationEventHandler<HTMLDivElement>` | - | - |
| `onAnimationEndCapture` | `AnimationEventHandler<HTMLDivElement>` | - | - |
| `onAnimationIteration` | `AnimationEventHandler<HTMLDivElement>` | - | - |
| `onAnimationIterationCapture` | `AnimationEventHandler<HTMLDivElement>` | - | - |
| `onTransitionCancel` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onTransitionCancelCapture` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onTransitionEnd` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onTransitionEndCapture` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onTransitionRun` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onTransitionRunCapture` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onTransitionStart` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onTransitionStartCapture` | `TransitionEventHandler<HTMLDivElement>` | - | - |
| `onFocus` | `((e: FocusEvent<Element, Element>) => void)` | - | Handler that is called when the element receives focus. |
| `onBlur` | `((e: FocusEvent<Element, Element>) => void)` | - | Handler that is called when the element loses focus. |
| `onFocusChange` | `((isFocused: boolean) => void)` | - | Handler that is called when the element's focus status changes. |
| `onKeyDown` | `((e: KeyboardEvent) => void)` | - | Handler that is called when a key is pressed. |
| `onKeyUp` | `((e: KeyboardEvent) => void)` | - | Handler that is called when a key is released. |
| `onChange` | `((value: TimeValue) => void)` | - | Handler that is called when the value changes. |
| `onCopy` | `ClipboardEventHandler<HTMLInputElement>` | - | Handler that is called when the user copies text. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/oncopy). |
| `onCut` | `ClipboardEventHandler<HTMLInputElement>` | - | Handler that is called when the user cuts text. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/oncut). |
| `onPaste` | `ClipboardEventHandler<HTMLInputElement>` | - | Handler that is called when the user pastes text. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/onpaste). |
| `onCompositionStart` | `CompositionEventHandler<HTMLInputElement>` | - | Handler that is called when a text composition system starts a new text composition session. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Element/compositionstart_event). |
| `onCompositionEnd` | `CompositionEventHandler<HTMLInputElement>` | - | Handler that is called when a text composition system completes or cancels the current text composition session. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Element/compositionend_event). |
| `onCompositionUpdate` | `CompositionEventHandler<HTMLInputElement>` | - | Handler that is called when a new character is received in the current text composition session. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Element/compositionupdate_event). |
| `onSelect` | `ReactEventHandler<HTMLInputElement>` | - | Handler that is called when text in the input is selected. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Element/select_event). |
| `onBeforeInput` | `FormEventHandler<HTMLInputElement>` | - | Handler that is called when the input value is about to be modified. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/beforeinput_event). |
| `onInput` | `FormEventHandler<HTMLInputElement>` | - | Handler that is called when the input value is modified. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/input_event). |

### Accessibility

| Property | Type | Default | Description |
| --- | --- | --- | --- |
| `aria-label` | `string` | - | Defines a string value that labels the current element. |
| `aria-labelledby` | `string` | - | Identifies the element (or elements) that labels the current element. |
| `aria-describedby` | `string` | - | Identifies the element (or elements) that describes the object. |
| `aria-details` | `string` | - | Identifies the element (or elements) that provide a detailed, extended description for the object. |
| `aria-activedescendant` | `string` | - | Identifies the currently active element when DOM focus is on a composite widget, textbox, group, or application. |
| `aria-autocomplete` | `"list" \| "none" \| "inline" \| "both"` | - | Indicates whether inputting text could trigger display of one or more predictions of the user's intended value for an input and specifies how predictions would be presented if they are made. |
| `aria-haspopup` | `boolean \| "false" \| "true" \| "menu" \| "listbox" \| "tree" \| "grid" \| "dialog"` | - | Indicates the availability and type of interactive popup element, such as menu or dialog, that can be triggered by an element. |
| `aria-controls` | `string` | - | Identifies the element (or elements) whose contents or presence are controlled by the current element. |
| `aria-errormessage` | `string` | - | Identifies the element that provides an error message for the object. |


## Guidelines

# Grundlagen

Das PhoneNumberField ist eine Component zur Eingabe von Telefonnummern. Es
akzeptiert Eingaben in beliebigem Format — mit oder ohne Leerzeichen, mit oder
ohne Ländervorwahl — und normalisiert sie zu einem einheitlichen Wert. User
müssen sich dadurch nicht an ein vorgegebenes Format halten. Für Eingaben, die
keine Telefonnummern sind, sollte ein reguläres
[TextField](/04-components/form-controls/text-field/overview) verwendet werden.

## Best Practices

Achte bei der Verwendung eines PhoneNumberFields darauf, dass ...

- ein `<FieldError />` vorhanden ist, damit ungültige Nummern für den User
  nachvollziehbar sind.
- das `defaultCountry` zum Kontext passt, wenn die Zielgruppe überwiegend
  außerhalb Deutschlands liegt.

## Verwendung

Verwende ein PhoneNumberField, um ...

- Telefonnummern ohne Formatvorgaben zu erfassen.
- Telefonnummern einheitlich (E.164) zu speichern.
- Tippfehler durch die eingebaute Validierung frühzeitig sichtbar zu machen.

