VfAddon

Basic

VfAddon renders a single addon cell inside an element's input wrapper. It is used when overriding the addonBefore or addonAfter slot of an element to provide custom addon content.

Website

https://

<VfText name="website" label="Website">
  <template #addon-before>
    <VfAddon>https://</VfAddon>
  </template>
</VfText>

<template>
  <VfText name="website" label="Website">
    <template #addon-before>
      <VfAddon>https://</VfAddon>
    </template>
  </VfText>
</template>

<script setup lang="ts">
import { defineSchema, defineSlot, useForm } from '@vueform/ui'
import { h, resolveComponent } from 'vue'

const schema = defineSchema({
  website: {
    type: 'text',
    label: 'Website',
    slots: {
      'addon-before': defineSlot('VfText.addon-before', {
        setup: () => () => {
          const VfAddon = resolveComponent('VfAddon')
          return h(VfAddon, null, () => 'https://')
        },
      }),
    },
  },
})

const [Form] = useForm({ schema })
</script>

<template>
  <Form />
</template>

Props

Configure the component's behavior and appearance with these props.

Component

Prop	Default	Description
addon	—	The addon content — a text value or an element schema tuple.

Customization

Prop	Default	Description
parts	—	Custom DOM attribute overrides for the component's structural parts.
class	—	CSS classes to apply to the component's root element.
classes	—	Custom CSS class overrides for the component's structural parts.
reclass	—	CSS class overrides that replace (rather than merge with) default classes.
slots	—	Custom Vue components to use for named slots. Every component resolves it through the standard outlets pipeline (see useOutlets).
presets	—	Named configuration presets to apply to the component.
template	—	A custom Vue component to use as the template instead of the default.
component	—	A custom Vue component to render in the component's default slot.

Context

Reactive properties and methods accessible on the component's Context object.

General

Name	Description
props	The resolved component props with defaults applied.

Addon

Name	Description
resolved	Resolves the addon prop into a sanitized text string or a dynamic component descriptor ({ component, props }) for rendering.

Layout

Name	Description
classes	The resolved CSS class map for the component.
parts	The resolved DOM attribute overrides for internal elements.

Events

Name	Description
fire()	Fires an event synchronously, invoking before, main, and after listeners in order.
fireAsync()	Fires an event asynchronously, awaiting each callback and short-circuiting when any returns false.
on()	Subscribes a callback to a specific event.
off()	Removes a previously registered event callback.
onBefore()	Registers a callback that runs before the main event listeners.
onAfter()	Registers a callback that runs after the main event listeners.

Events

Events emitted by the component. See Events for details.

Name	Params	Description
beforeMount	context$	Emitted before the component is mounted.
mounted	context$	Emitted after the component is mounted.
beforeUnmount	context$	Emitted before the component is unmounted.
unmounted	context$	Emitted after the component is unmounted.
updated	context$	Emitted after the component is updated.

Slots

Named Slots for replacing parts of the component's rendering.

Name	Scope	Description
template	context	Slot that replaces the entire component rendering. Receives the full component context as a single context prop.
default	—	Default slot for addon content.

Parts

DOM attribute overrides targeting internal elements. See Parts for details.

Example

root

The root wrapper element.

Element	<div>
Classes	.vf-addon

Tokens

All the CSS variables that control this component's appearance with default values in the default theme. See Themes & Tokens for details.

:root {
  /**
   * Component tokens
   * -------------------------------------------------------------------------- */
  --vf-addon-bg: var(--vf-white);
  --vf-addon-bg-danger: var(--vf-white);

  --vf-addon-color: inherit;
  --vf-addon-color-danger: inherit;

  --vf-addon-border-color: var(--vf-gray-300);
  --vf-addon-border-color-danger: var(--vf-gray-300);
  --vf-addon-border-style: solid;
  --vf-addon-border-width: 1px;
  --vf-addon-radius: calc(var(--vf-radius) - var(--vf-border-width-t));

  --vf-addon-after-padding: 0 var(--vf-px);
  --vf-addon-before-margin: 0;
  --vf-addon-before-padding: 0 var(--vf-px);
}

{
  /**
   * Component tokens
   * -------------------------------------------------------------------------- */
  addonBg: '$white',
  addonBgDanger: '$white',

  addonColor: 'inherit',
  addonColorDanger: 'inherit',

  addonBorderColor: '$gray300',
  addonBorderColorDanger: '$gray300',
  addonBorderStyle: 'solid',
  addonBorderWidth: '1px',
  addonRadius: 'calc($radius - $borderWidthT)',

  addonAfterPadding: '0 $px',
  addonBeforeMargin: '0',
  addonBeforePadding: '0 $px',
}