stacker.news/components/form.js

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import Button from 'react-bootstrap/Button'
import InputGroup from 'react-bootstrap/InputGroup'
import BootstrapForm from 'react-bootstrap/Form'
import Alert from 'react-bootstrap/Alert'
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import { Formik, Form as FormikForm, useFormikContext, useField, FieldArray } from 'formik'
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import React, { useEffect, useRef, useState } from 'react'
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import copy from 'clipboard-copy'
import Thumb from '../svgs/thumb-up-fill.svg'
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import { Col, Nav } from 'react-bootstrap'
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import Markdown from '../svgs/markdown-line.svg'
import styles from './form.module.css'
import Text from '../components/text'
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import AddIcon from '../svgs/add-fill.svg'
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import { mdHas } from '../lib/md'
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export function SubmitButton ({
children, variant, value, onClick, ...props
}) {
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const { isSubmitting, setFieldValue } = useFormikContext()
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return (
<Button
variant={variant || 'main'}
type='submit'
disabled={isSubmitting}
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onClick={value
? e => {
setFieldValue('submit', value)
onClick && onClick(e)
}
: onClick}
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{...props}
>
{children}
</Button>
)
}
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export function CopyInput (props) {
const [copied, setCopied] = useState(false)
const handleClick = () => {
copy(props.placeholder)
setCopied(true)
setTimeout(() => setCopied(false), 1500)
}
return (
<Input
onClick={handleClick}
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append={
<Button
size={props.size}
onClick={handleClick}
>
{copied ? <Thumb width={18} height={18} /> : 'copy'}
</Button>
}
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{...props}
/>
)
}
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export function InputSkeleton ({ label, hint }) {
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return (
<BootstrapForm.Group>
{label && <BootstrapForm.Label>{label}</BootstrapForm.Label>}
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<div className='form-control clouds' />
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{hint &&
<BootstrapForm.Text>
{hint}
</BootstrapForm.Text>}
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</BootstrapForm.Group>
)
}
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export function MarkdownInput ({ label, topLevel, groupClassName, onChange, setHasImgLink, ...props }) {
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const [tab, setTab] = useState('write')
const [, meta] = useField(props)
useEffect(() => {
!meta.value && setTab('write')
}, [meta.value])
return (
<FormGroup label={label} className={groupClassName}>
<div className={`${styles.markdownInput} ${tab === 'write' ? styles.noTopLeftRadius : ''}`}>
<Nav variant='tabs' defaultActiveKey='write' activeKey={tab} onSelect={tab => setTab(tab)}>
<Nav.Item>
<Nav.Link eventKey='write'>write</Nav.Link>
</Nav.Item>
<Nav.Item>
<Nav.Link eventKey='preview' disabled={!meta.value}>preview</Nav.Link>
</Nav.Item>
<a
className='ml-auto text-muted d-flex align-items-center'
href='https://guides.github.com/features/mastering-markdown/' target='_blank' rel='noreferrer'
>
<Markdown width={18} height={18} />
</a>
</Nav>
<div className={tab !== 'write' ? 'd-none' : ''}>
<InputInner
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{...props} onChange={(formik, e) => {
if (onChange) onChange(formik, e)
if (setHasImgLink) {
setHasImgLink(mdHas(e.target.value, ['link', 'image']))
}
}}
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/>
</div>
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<div className={tab !== 'preview' ? 'd-none' : 'form-group'}>
<div className={`${styles.text} form-control`}>
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{tab === 'preview' && <Text topLevel={topLevel} noFragments>{meta.value}</Text>}
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</div>
</div>
</div>
</FormGroup>
)
}
function FormGroup ({ className, label, children }) {
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return (
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<BootstrapForm.Group className={className}>
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{label && <BootstrapForm.Label>{label}</BootstrapForm.Label>}
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{children}
</BootstrapForm.Group>
)
}
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function InputInner ({
prepend, append, hint, showValid, onChange, overrideValue,
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innerRef, storageKeyPrefix, noForm, ...props
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}) {
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const [field, meta, helpers] = noForm ? [{}, {}, {}] : useField(props)
const formik = noForm ? null : useFormikContext()
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const storageKey = storageKeyPrefix ? storageKeyPrefix + '-' + props.name : undefined
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useEffect(() => {
if (overrideValue) {
helpers.setValue(overrideValue)
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if (storageKey) {
localStorage.setItem(storageKey, overrideValue)
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}
} else if (storageKey) {
const draft = localStorage.getItem(storageKey)
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if (draft) {
// for some reason we have to turn off validation to get formik to
// not assume this is invalid
helpers.setValue(draft, false)
}
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}
}, [overrideValue])
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return (
<>
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<InputGroup hasValidation>
{prepend && (
<InputGroup.Prepend>
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{prepend}
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</InputGroup.Prepend>
)}
<BootstrapForm.Control
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onKeyDown={(e) => {
if (e.keyCode === 13 && (e.metaKey || e.ctrlKey)) {
formik?.submitForm()
}
}}
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ref={innerRef}
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{...field} {...props}
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onChange={(e) => {
field.onChange(e)
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if (storageKey) {
localStorage.setItem(storageKey, e.target.value)
}
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if (onChange) {
onChange(formik, e)
}
}}
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isInvalid={meta.touched && meta.error}
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isValid={showValid && meta.initialValue !== meta.value && meta.touched && !meta.error}
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/>
{append && (
<InputGroup.Append>
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{append}
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</InputGroup.Append>
)}
<BootstrapForm.Control.Feedback type='invalid'>
{meta.touched && meta.error}
</BootstrapForm.Control.Feedback>
</InputGroup>
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{hint && (
<BootstrapForm.Text>
{hint}
</BootstrapForm.Text>
)}
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</>
)
}
export function Input ({ label, groupClassName, ...props }) {
return (
<FormGroup label={label} className={groupClassName}>
<InputInner {...props} />
</FormGroup>
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)
}
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export function VariableInput ({ label, groupClassName, name, hint, max, readOnlyLen, ...props }) {
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return (
<FormGroup label={label} className={groupClassName}>
<FieldArray name={name}>
{({ form, ...fieldArrayHelpers }) => {
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const options = form.values[name]
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return (
<>
{options.map((_, i) => (
<div key={i}>
<BootstrapForm.Row className='mb-2'>
<Col>
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<InputInner name={`${name}[${i}]`} {...props} readOnly={i < readOnlyLen} placeholder={i > 1 ? 'optional' : undefined} />
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</Col>
{options.length - 1 === i && options.length !== max
? <AddIcon className='fill-grey align-self-center pointer mx-2' onClick={() => fieldArrayHelpers.push('')} />
: null}
</BootstrapForm.Row>
</div>
))}
</>
)
}}
</FieldArray>
{hint && (
<BootstrapForm.Text>
{hint}
</BootstrapForm.Text>
)}
</FormGroup>
)
}
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export function Checkbox ({ children, label, groupClassName, hiddenLabel, extra, handleChange, inline, ...props }) {
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// React treats radios and checkbox inputs differently other input types, select, and textarea.
// Formik does this too! When you specify `type` to useField(), it will
// return the correct bag of props for you
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const [field] = useField({ ...props, type: 'checkbox' })
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return (
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<BootstrapForm.Group className={groupClassName}>
{hiddenLabel && <BootstrapForm.Label className='invisible'>{label}</BootstrapForm.Label>}
<BootstrapForm.Check
custom
id={props.id || props.name}
inline={inline}
>
<BootstrapForm.Check.Input
{...field} {...props} type='checkbox' onChange={(e) => {
field.onChange(e)
handleChange && handleChange(e.target.checked)
}}
/>
<BootstrapForm.Check.Label className='d-flex'>
<div className='flex-grow-1'>{label}</div>
{extra &&
<div className={styles.checkboxExtra}>
{extra}
</div>}
</BootstrapForm.Check.Label>
</BootstrapForm.Check>
</BootstrapForm.Group>
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)
}
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export function Form ({
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initial, schema, onSubmit, children, initialError, validateImmediately, storageKeyPrefix, ...props
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}) {
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const [error, setError] = useState(initialError)
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return (
<Formik
initialValues={initial}
validationSchema={schema}
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initialTouched={validateImmediately && initial}
validateOnBlur={false}
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onSubmit={async (values, ...args) =>
onSubmit && onSubmit(values, ...args).then(() => {
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if (!storageKeyPrefix) return
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Object.keys(values).forEach(v => {
localStorage.removeItem(storageKeyPrefix + '-' + v)
if (Array.isArray(values[v])) {
values[v].forEach(
(_, i) => localStorage.removeItem(`${storageKeyPrefix}-${v}[${i}]`))
}
}
)
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}).catch(e => setError(e.message || e))}
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>
<FormikForm {...props} noValidate>
{error && <Alert variant='danger' onClose={() => setError(undefined)} dismissible>{error}</Alert>}
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{storageKeyPrefix
? React.Children.map(children, (child) => {
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// if child has a type that's a string, it's a dom element and can't get a prop
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if (child) {
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let childProps = {}
if (typeof child.type !== 'string') {
childProps = { storageKeyPrefix }
}
return React.cloneElement(child, childProps)
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}
})
: children}
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</FormikForm>
</Formik>
)
}
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export function SyncForm ({
initial, schema, children, action, ...props
}) {
const ref = useRef(null)
return (
<Formik
initialValues={initial}
validationSchema={schema}
validateOnBlur={false}
onSubmit={() => ref.current.submit()}
>
{props => (
<form
ref={ref}
onSubmit={props.handleSubmit}
onReset={props.handleReset}
action={action}
method='POST'
noValidate
>
{children}
</form>
)}
</Formik>
)
}