docs: Add component specification and API documentation for N8nInput (#22082)

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Csaba Tuncsik 2025-11-28 06:08:42 +02:00 committed by GitHub
parent 3c0e809e41
commit ce05c7f7d3
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194

View File

@ -0,0 +1,216 @@
# Component specification
A versatile text input component for collecting user text, numbers, passwords, and other types of single-line or multi-line data. Supports various input types, validation states, and customizable appearance through slots.
- **Component Name:** N8nInput
- **Figma Component:** [Input](https://www.figma.com/design/8zib7Trf2D2CHYXrEGPHkg/n8n-Design-System-V3?node-id=239-2170&m=dev)
- **Element+ Component:** [ElInput](https://element-plus.org/en-US/component/input.html)
- **Reka UI Component:** N/A (no direct equivalent - will use native HTML input with Editable component for enhanced features)
- **Nuxt UI Component:** [Input](https://ui.nuxt.com/docs/components/input)
## Public API Definition
**Props**
- `modelValue?: string | number | null` - The bound value of the input (v-model). Default: `''`
- `type?: InputType` - Type of input field. Values: `'text' | 'textarea' | 'password'`. Default: `'text'`
- `size?: InputSize` - Size of the input. Values: `'xlarge' | 'large' | 'medium' | 'small' | 'mini'`. Default: `'large'`
- `placeholder?: string` - Placeholder text displayed when input is empty. Default: `''`
- `disabled?: boolean` - When `true`, prevents user interaction and dims the input. Default: `false`
- `clearable?: boolean` - When `true`, displays a clear button (×) when input has a value. Default: `false`
- `rows?: number` - Number of rows for textarea type. Default: `2`
- `maxlength?: number` - Maximum number of characters allowed.
- `autosize?: boolean | { minRows?: number; maxRows?: number }` - Auto-resize textarea height based on content. When `true`, auto-sizes without limits. Object form specifies min/max row constraints. Only applies when `type="textarea"`. Default: `false`
- `autofocus?: boolean` - When `true`, automatically focuses the input on mount. Default: `false`
- `autocomplete?: 'on' | 'off'` - HTML autocomplete attribute. Default: `'off'`
**Events**
- `update:modelValue` - Emitted when input value changes. Payload: `[value: string | number | null]`
- `blur` - Emitted when input loses focus. Payload: `[event: FocusEvent]`
- `keydown` - Emitted on keydown event. Payload: `[event: KeyboardEvent]`
**Slots**
- `prefix` - Content inside input box, before the text (typically for search icons)
- `suffix` - Content inside input box, after the text (typically for icons or indicators)
**Exposed Methods**
- `focus(): void` - Programmatically focus the input element
- `blur(): void` - Programmatically blur the input element
- `select(): void` - Programmatically select all text in the input
### Template usage examples
**Basic text input:**
```vue
<script setup lang="ts">
import { ref } from 'vue'
import { N8nInput } from '@n8n/design-system'
const username = ref('')
</script>
<template>
<N8nInput
v-model="username"
placeholder="Enter username..."
size="large"
/>
</template>
```
**Search input with icon and clear button:**
```vue
<script setup lang="ts">
import { ref } from 'vue'
import { N8nInput, N8nIcon } from '@n8n/design-system'
const searchQuery = ref('')
</script>
<template>
<N8nInput
v-model="searchQuery"
placeholder="Search..."
clearable
>
<template #prefix>
<N8nIcon icon="search" />
</template>
</N8nInput>
</template>
```
**Textarea with fixed rows:**
```vue
<script setup lang="ts">
import { ref } from 'vue'
import { N8nInput } from '@n8n/design-system'
const description = ref('')
</script>
<template>
<N8nInput
v-model="description"
type="textarea"
placeholder="Enter description..."
:rows="4"
:maxlength="500"
/>
</template>
```
**Auto-resizing textarea:**
```vue
<script setup lang="ts">
import { ref } from 'vue'
import { N8nInput } from '@n8n/design-system'
const message = ref('')
</script>
<template>
<N8nInput
v-model="message"
type="textarea"
placeholder="Type your message..."
:autosize="{ minRows: 1, maxRows: 6 }"
/>
</template>
```
**Disabled input:**
```vue
<script setup lang="ts">
import { N8nInput } from '@n8n/design-system'
</script>
<template>
<N8nInput
model-value="Cannot edit this"
disabled
/>
</template>
```
**Input with suffix icon:**
```vue
<script setup lang="ts">
import { ref } from 'vue'
import { N8nInput, N8nIcon } from '@n8n/design-system'
const name = ref('')
</script>
<template>
<N8nInput
v-model="name"
placeholder="Enter name..."
>
<template #suffix>
<N8nIcon icon="info" size="small" />
</template>
</N8nInput>
</template>
```
**Input with keydown handler:**
```vue
<script setup lang="ts">
import { ref } from 'vue'
import { N8nInput } from '@n8n/design-system'
const value = ref('')
const handleKeyDown = (event: KeyboardEvent) => {
if (event.key === 'Enter') {
console.log('Submitted:', value.value)
}
if (event.key === 'Escape') {
value.value = ''
}
}
</script>
<template>
<N8nInput
v-model="value"
placeholder="Press Enter to submit..."
@keydown="handleKeyDown"
/>
</template>
```
**Using exposed methods:**
```vue
<script setup lang="ts">
import { ref } from 'vue'
import { N8nInput, N8nButton } from '@n8n/design-system'
const inputRef = ref()
const value = ref('')
const focusInput = () => {
inputRef.value?.focus()
}
const selectAll = () => {
inputRef.value?.select()
}
</script>
<template>
<div>
<N8nInput
ref="inputRef"
v-model="value"
placeholder="Controllable input..."
/>
<N8nButton label="Focus" @click="focusInput" />
<N8nButton label="Select All" @click="selectAll" />
</div>
</template>
```