stacker.news/components/form.js

766 lines
25 KiB
JavaScript

import Button from 'react-bootstrap/Button'
import InputGroup from 'react-bootstrap/InputGroup'
import BootstrapForm from 'react-bootstrap/Form'
import { Formik, Form as FormikForm, useFormikContext, useField, FieldArray } from 'formik'
import React, { createContext, useCallback, useContext, useEffect, useRef, useState } from 'react'
import copy from 'clipboard-copy'
import Thumb from '../svgs/thumb-up-fill.svg'
import Col from 'react-bootstrap/Col'
import Dropdown from 'react-bootstrap/Dropdown'
import Nav from 'react-bootstrap/Nav'
import Row from 'react-bootstrap/Row'
import Markdown from '../svgs/markdown-line.svg'
import styles from './form.module.css'
import Text from '../components/text'
import AddIcon from '../svgs/add-fill.svg'
import { mdHas } from '../lib/md'
import CloseIcon from '../svgs/close-line.svg'
import { useLazyQuery } from '@apollo/client'
import { TOP_USERS, USER_SEARCH } from '../fragments/users'
import TextareaAutosize from 'react-textarea-autosize'
import { useToast } from './toast'
import { useInvoiceable } from './invoice'
import { numWithUnits } from '../lib/format'
import textAreaCaret from 'textarea-caret'
import ReactDatePicker from 'react-datepicker'
import 'react-datepicker/dist/react-datepicker.css'
import { debounce } from './use-debounce-callback'
export function SubmitButton ({
children, variant, value, onClick, disabled, cost, ...props
}) {
const formik = useFormikContext()
useEffect(() => {
formik?.setFieldValue('cost', cost)
}, [formik?.setFieldValue, formik?.getFieldProps('cost').value, cost])
return (
<Button
variant={variant || 'main'}
type='submit'
disabled={disabled || formik.isSubmitting}
onClick={value
? e => {
formik.setFieldValue('submit', value)
onClick && onClick(e)
}
: onClick}
{...props}
>
{children}
</Button>
)
}
export function CopyInput (props) {
const [copied, setCopied] = useState(false)
const handleClick = () => {
copy(props.placeholder)
setCopied(true)
setTimeout(() => setCopied(false), 1500)
}
return (
<Input
onClick={handleClick}
append={
<Button
className={styles.appendButton}
size={props.size}
onClick={handleClick}
>
{copied ? <Thumb width={18} height={18} /> : 'copy'}
</Button>
}
{...props}
/>
)
}
export function InputSkeleton ({ label, hint }) {
return (
<BootstrapForm.Group>
{label && <BootstrapForm.Label>{label}</BootstrapForm.Label>}
<div className='form-control clouds' style={{ color: 'transparent' }}>.</div>
{hint &&
<BootstrapForm.Text>
{hint}
</BootstrapForm.Text>}
</BootstrapForm.Group>
)
}
const DEFAULT_MENTION_INDICES = { start: -1, end: -1 }
export function MarkdownInput ({ label, topLevel, groupClassName, onChange, setHasImgLink, onKeyDown, innerRef, ...props }) {
const [tab, setTab] = useState('write')
const [, meta, helpers] = useField(props)
const [selectionRange, setSelectionRange] = useState({ start: 0, end: 0 })
innerRef = innerRef || useRef(null)
const previousTab = useRef(tab)
props.as ||= TextareaAutosize
props.rows ||= props.minRows || 6
useEffect(() => {
!meta.value && setTab('write')
}, [meta.value])
useEffect(() => {
// focus on input when switching to write tab from preview tab
if (innerRef?.current && tab === 'write' && previousTab?.current !== 'write') {
innerRef.current.focus()
}
previousTab.current = tab
}, [tab])
useEffect(() => {
if (selectionRange.start <= selectionRange.end && innerRef?.current) {
const { start, end } = selectionRange
const input = innerRef.current
input.setSelectionRange(start, end)
}
}, [innerRef, selectionRange.start, selectionRange.end])
const [mentionQuery, setMentionQuery] = useState()
const [mentionIndices, setMentionIndices] = useState(DEFAULT_MENTION_INDICES)
const [userSuggestDropdownStyle, setUserSuggestDropdownStyle] = useState({})
const insertMention = useCallback((name) => {
const { start, end } = mentionIndices
const first = `${innerRef.current.value.substring(0, start)}@${name}`
const second = innerRef.current.value.substring(end)
const updatedValue = `${first}${second}`
innerRef.current.value = updatedValue
helpers.setValue(updatedValue)
setSelectionRange({ start: first.length, end: first.length })
innerRef.current.focus()
}, [mentionIndices, innerRef, helpers?.setValue])
const onChangeInner = useCallback((formik, e) => {
if (onChange) onChange(formik, e)
if (setHasImgLink) {
setHasImgLink(mdHas(e.target.value, ['link', 'image']))
}
// check for mention editing
const { value, selectionStart } = e.target
let priorSpace = -1
for (let i = selectionStart - 1; i >= 0; i--) {
if (/\s|\n/.test(value[i])) {
priorSpace = i
break
}
}
let nextSpace = value.length
for (let i = selectionStart; i <= value.length; i++) {
if (/\s|\n/.test(value[i])) {
nextSpace = i
break
}
}
const currentSegment = value.substring(priorSpace + 1, nextSpace)
// set the query to the current character segment and note where it appears
if (/^@[\w_]*$/.test(currentSegment)) {
setMentionQuery(currentSegment)
setMentionIndices({ start: priorSpace + 1, end: nextSpace })
const { top, left } = textAreaCaret(e.target, e.target.selectionStart)
setUserSuggestDropdownStyle({
position: 'absolute',
top: `${top + Number(window.getComputedStyle(e.target).lineHeight.replace('px', ''))}px`,
left: `${left}px`
})
} else {
setMentionQuery(undefined)
setMentionIndices(DEFAULT_MENTION_INDICES)
}
}, [onChange, setHasImgLink, setMentionQuery, setMentionIndices, setUserSuggestDropdownStyle])
const onKeyDownInner = useCallback((userSuggestOnKeyDown) => {
return (e) => {
const metaOrCtrl = e.metaKey || e.ctrlKey
if (metaOrCtrl) {
if (e.key === 'k') {
// some browsers use CTRL+K to focus search bar so we have to prevent that behavior
e.preventDefault()
insertMarkdownLinkFormatting(innerRef.current, helpers.setValue, setSelectionRange)
}
if (e.key === 'b') {
// some browsers use CTRL+B to open bookmarks so we have to prevent that behavior
e.preventDefault()
insertMarkdownBoldFormatting(innerRef.current, helpers.setValue, setSelectionRange)
}
if (e.key === 'i') {
// some browsers might use CTRL+I to do something else so prevent that behavior too
e.preventDefault()
insertMarkdownItalicFormatting(innerRef.current, helpers.setValue, setSelectionRange)
}
if (e.key === 'Tab' && e.altKey) {
e.preventDefault()
insertMarkdownTabFormatting(innerRef.current, helpers.setValue, setSelectionRange)
}
}
if (!metaOrCtrl) {
userSuggestOnKeyDown(e)
}
if (onKeyDown) onKeyDown(e)
}
}, [innerRef, helpers?.setValue, setSelectionRange, onKeyDown])
return (
<FormGroup label={label} className={groupClassName}>
<div className={`${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='ms-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={`position-relative ${tab === 'write' ? '' : 'd-none'}`}>
<UserSuggest
query={mentionQuery}
onSelect={insertMention}
dropdownStyle={userSuggestDropdownStyle}
>{({ onKeyDown: userSuggestOnKeyDown, resetSuggestions }) => (
<InputInner
innerRef={innerRef}
{...props}
onChange={onChangeInner}
onKeyDown={onKeyDownInner(userSuggestOnKeyDown)}
onBlur={() => setTimeout(resetSuggestions, 100)}
/>)}
</UserSuggest>
</div>
{tab !== 'write' &&
<div className='form-group'>
<div className={`${styles.text} form-control`}>
<Text topLevel={topLevel} noFragments tab={tab}>{meta.value}</Text>
</div>
</div>}
</div>
</FormGroup>
)
}
function insertMarkdownFormatting (replaceFn, selectFn) {
return function (input, setValue, setSelectionRange) {
const start = input.selectionStart
const end = input.selectionEnd
const val = input.value
const selectedText = val.substring(start, end)
const mdFormatted = replaceFn(selectedText)
const newVal = val.substring(0, start) + mdFormatted + val.substring(end)
setValue(newVal)
// required for undo, see https://stackoverflow.com/a/27028258
document.execCommand('insertText', false, mdFormatted)
// see https://github.com/facebook/react/issues/6483
// for why we don't use `input.setSelectionRange` directly (hint: event order)
setSelectionRange(selectFn ? selectFn(start, end, mdFormatted) : { start: start + mdFormatted.length, end: start + mdFormatted.length })
}
}
const insertMarkdownTabFormatting = insertMarkdownFormatting(
val => `\t${val}`,
(start, end, mdFormatted) => ({ start: start + 1, end: end + 1 }) // move inside tab
)
const insertMarkdownLinkFormatting = insertMarkdownFormatting(
val => `[${val}](url)`,
(start, end, mdFormatted) => (
start === end
? { start: start + 1, end: end + 1 } // move inside brackets
: { start: start + mdFormatted.length - 4, end: start + mdFormatted.length - 1 }) // move to select url part
)
const insertMarkdownBoldFormatting = insertMarkdownFormatting(
val => `**${val}**`,
(start, end, mdFormatted) => ({ start: start + 2, end: end + 2 }) // move inside bold
)
const insertMarkdownItalicFormatting = insertMarkdownFormatting(
val => `_${val}_`,
(start, end, mdFormatted) => ({ start: start + 1, end: end + 1 }) // move inside italic
)
function FormGroup ({ className, label, children }) {
return (
<BootstrapForm.Group className={`form-group ${className}`}>
{label && <BootstrapForm.Label>{label}</BootstrapForm.Label>}
{children}
</BootstrapForm.Group>
)
}
function InputInner ({
prepend, append, hint, showValid, onChange, onBlur, overrideValue,
innerRef, noForm, clear, onKeyDown, inputGroupClassName, debounce: debounceTime, maxLength,
...props
}) {
const [field, meta, helpers] = noForm ? [{}, {}, {}] : useField(props)
const formik = noForm ? null : useFormikContext()
const storageKeyPrefix = useContext(StorageKeyPrefixContext)
const storageKey = storageKeyPrefix ? storageKeyPrefix + '-' + props.name : undefined
const onKeyDownInner = useCallback((e) => {
const metaOrCtrl = e.metaKey || e.ctrlKey
if (metaOrCtrl) {
if (e.key === 'Enter') formik?.submitForm()
}
if (onKeyDown) onKeyDown(e)
}, [formik?.submitForm, onKeyDown])
const onChangeInner = useCallback((e) => {
field?.onChange(e)
if (storageKey) {
window.localStorage.setItem(storageKey, e.target.value)
}
if (onChange) {
onChange(formik, e)
}
}, [field?.onChange, storageKey, onChange])
const onBlurInner = useCallback((e) => {
field?.onBlur?.(e)
onBlur && onBlur(e)
}, [field?.onBlur, onBlur])
useEffect(() => {
if (overrideValue) {
helpers.setValue(overrideValue)
if (storageKey) {
window.localStorage.setItem(storageKey, overrideValue)
}
} else if (storageKey) {
const draft = window.localStorage.getItem(storageKey)
if (draft) {
// for some reason we have to turn off validation to get formik to
// not assume this is invalid
helpers.setValue(draft, false)
}
}
}, [overrideValue])
const invalid = (!formik || formik.submitCount > 0) && meta.touched && meta.error
useEffect(debounce(() => {
if (!noForm && !isNaN(debounceTime) && debounceTime > 0) {
formik.validateForm()
}
}, debounceTime), [noForm, formik, field.value])
const remaining = maxLength && maxLength - (field.value || '').length
return (
<>
<InputGroup hasValidation className={inputGroupClassName}>
{prepend}
<BootstrapForm.Control
ref={innerRef}
{...field}
{...props}
onKeyDown={onKeyDownInner}
onChange={onChangeInner}
onBlur={onBlurInner}
isInvalid={invalid}
isValid={showValid && meta.initialValue !== meta.value && meta.touched && !meta.error}
/>
{(clear && field.value) &&
<Button
variant={null}
onClick={(e) => {
helpers.setValue('')
if (storageKey) {
window.localStorage.removeItem(storageKey)
}
if (onChange) {
onChange(formik, { target: { value: '' } })
}
}}
className={`${styles.clearButton} ${styles.appendButton} ${invalid ? styles.isInvalid : ''}`}
><CloseIcon className='fill-grey' height={20} width={20} />
</Button>}
{append}
<BootstrapForm.Control.Feedback type='invalid'>
{meta.touched && meta.error}
</BootstrapForm.Control.Feedback>
</InputGroup>
{hint && (
<BootstrapForm.Text>
{hint}
</BootstrapForm.Text>
)}
{maxLength && !(meta.touched && meta.error && invalid) && (
<BootstrapForm.Text className={remaining < 0 ? 'text-danger' : undefined}>
{`${numWithUnits(remaining, { abbreviate: false, unitSingular: 'character', unitPlural: 'characters' })} remaining`}
</BootstrapForm.Text>
)}
</>
)
}
const INITIAL_SUGGESTIONS = { array: [], index: 0 }
export function UserSuggest ({
query, onSelect, dropdownStyle, children,
transformUser = user => user, selectWithTab = true, filterUsers = () => true
}) {
const [getUsers] = useLazyQuery(TOP_USERS, {
onCompleted: data => {
setSuggestions({
array: data.topUsers.users
.filter((...args) => filterUsers(query, ...args))
.map(transformUser),
index: 0
})
}
})
const [getSuggestions] = useLazyQuery(USER_SEARCH, {
onCompleted: data => {
setSuggestions({
array: data.searchUsers
.filter((...args) => filterUsers(query, ...args))
.map(transformUser),
index: 0
})
}
})
const [suggestions, setSuggestions] = useState(INITIAL_SUGGESTIONS)
const resetSuggestions = useCallback(() => setSuggestions(INITIAL_SUGGESTIONS), [])
useEffect(() => {
if (query !== undefined) {
// remove both the leading @ and any @domain after nym
const q = query?.replace(/^[@ ]+|[ ]+$/g, '').replace(/@[^\s]*$/, '')
if (q === '') {
getUsers({ variables: { by: 'stacked', when: 'week', limit: 5 } })
} else {
getSuggestions({ variables: { q } })
}
} else {
resetSuggestions()
}
}, [query])
const onKeyDown = useCallback(e => {
switch (e.code) {
case 'ArrowUp':
if (suggestions.array.length === 0) {
break
}
e.preventDefault()
setSuggestions(suggestions =>
({
...suggestions,
index: Math.max(suggestions.index - 1, 0)
}))
break
case 'ArrowDown':
if (suggestions.array.length === 0) {
break
}
e.preventDefault()
setSuggestions(suggestions =>
({
...suggestions,
index: Math.min(suggestions.index + 1, suggestions.array.length - 1)
}))
break
case 'Tab':
case 'Enter':
if (e.code === 'Tab' && !selectWithTab) {
break
}
if (suggestions.array?.length === 0) {
break
}
e.preventDefault()
onSelect(suggestions.array[suggestions.index].name)
resetSuggestions()
break
case 'Escape':
e.preventDefault()
resetSuggestions()
break
default:
break
}
}, [onSelect, resetSuggestions, suggestions])
return (
<>
{children?.({ onKeyDown, resetSuggestions })}
<Dropdown show={suggestions.array.length > 0} style={dropdownStyle}>
<Dropdown.Menu className={styles.suggestionsMenu}>
{suggestions.array.map((v, i) =>
<Dropdown.Item
key={v.name}
active={suggestions.index === i}
onClick={() => {
onSelect(v.name)
resetSuggestions()
}}
>
{v.name}
</Dropdown.Item>)}
</Dropdown.Menu>
</Dropdown>
</>
)
}
export function InputUserSuggest ({
label, groupClassName, transformUser, filterUsers,
selectWithTab, onChange, transformQuery, ...props
}) {
const [ovalue, setOValue] = useState()
const [query, setQuery] = useState()
return (
<FormGroup label={label} className={groupClassName}>
<UserSuggest
transformUser={transformUser}
filterUsers={filterUsers}
selectWithTab={selectWithTab}
onSelect={(v) => {
// HACK ... ovalue does not trigger onChange
onChange && onChange(undefined, { target: { value: v } })
setOValue(v)
}}
query={query}
>
{({ onKeyDown, resetSuggestions }) => (
<InputInner
{...props}
autoComplete='off'
onChange={(formik, e) => {
onChange && onChange(formik, e)
setOValue(e.target.value)
setQuery(e.target.value.replace(/^[@ ]+|[ ]+$/g, ''))
}}
overrideValue={ovalue}
onKeyDown={onKeyDown}
onBlur={() => setTimeout(resetSuggestions, 100)}
/>
)}
</UserSuggest>
</FormGroup>
)
}
export function Input ({ label, groupClassName, ...props }) {
return (
<FormGroup label={label} className={groupClassName}>
<InputInner {...props} />
</FormGroup>
)
}
export function VariableInput ({ label, groupClassName, name, hint, max, min, readOnlyLen, children, emptyItem = '', ...props }) {
return (
<FormGroup label={label} className={groupClassName}>
<FieldArray name={name} hasValidation>
{({ form, ...fieldArrayHelpers }) => {
const options = form.values[name]
return (
<>
{options?.map((_, i) => (
<div key={i}>
<Row className='mb-2'>
<Col>
{children
? children({ index: i, readOnly: i < readOnlyLen, placeholder: i >= min ? 'optional' : undefined })
: <InputInner name={`${name}[${i}]`} {...props} readOnly={i < readOnlyLen} placeholder={i >= min ? 'optional' : undefined} />}
</Col>
<Col className='d-flex ps-0' xs='auto'>
{options.length - 1 === i && options.length !== max
? <AddIcon className='fill-grey align-self-center justify-self-center pointer' onClick={() => fieldArrayHelpers.push(emptyItem)} />
// filler div for col alignment across rows
: <div style={{ width: '24px', height: '24px' }} />}
</Col>
{options.length - 1 === i &&
<>
{hint && <BootstrapForm.Text>{hint}</BootstrapForm.Text>}
{form.touched[name] && typeof form.errors[name] === 'string' &&
<div className='invalid-feedback d-block'>{form.errors[name]}</div>}
</>}
</Row>
</div>
))}
</>
)
}}
</FieldArray>
</FormGroup>
)
}
export function Checkbox ({ children, label, groupClassName, hiddenLabel, extra, handleChange, inline, disabled, ...props }) {
// 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
const [field,, helpers] = useField({ ...props, type: 'checkbox' })
return (
<FormGroup className={groupClassName}>
{hiddenLabel && <BootstrapForm.Label className='invisible'>{label}</BootstrapForm.Label>}
<BootstrapForm.Check
id={props.id || props.name}
inline={inline}
>
<BootstrapForm.Check.Input
{...field} {...props} disabled={disabled} type='checkbox' onChange={(e) => {
field.onChange(e)
handleChange && handleChange(e.target.checked, helpers.setValue)
}}
/>
<BootstrapForm.Check.Label className={'d-inline-flex flex-nowrap align-items-center' + (disabled ? ' text-muted' : '')}>
<div className='flex-grow-1'>{label}</div>
{extra &&
<div className={styles.checkboxExtra}>
{extra}
</div>}
</BootstrapForm.Check.Label>
</BootstrapForm.Check>
</FormGroup>
)
}
const StorageKeyPrefixContext = createContext()
export function Form ({
initial, schema, onSubmit, children, initialError, validateImmediately, storageKeyPrefix, validateOnChange = true, invoiceable, innerRef, ...props
}) {
const toaster = useToast()
const initialErrorToasted = useRef(false)
useEffect(() => {
if (initialError && !initialErrorToasted.current) {
toaster.danger(initialError.message || initialError.toString?.())
initialErrorToasted.current = true
}
}, [])
const clearLocalStorage = useCallback((values) => {
Object.keys(values).forEach(v => {
window.localStorage.removeItem(storageKeyPrefix + '-' + v)
if (Array.isArray(values[v])) {
values[v].forEach(
(iv, i) => {
Object.keys(iv).forEach(k => {
window.localStorage.removeItem(`${storageKeyPrefix}-${v}[${i}].${k}`)
})
window.localStorage.removeItem(`${storageKeyPrefix}-${v}[${i}]`)
})
}
})
}, [storageKeyPrefix])
// if `invoiceable` is set,
// support for payment per invoice if they are lurking or don't have enough balance
// is added to submit handlers.
// submit handlers need to accept { satsReceived, hash, hmac } in their first argument
// and use them as variables in their GraphQL mutation
if (invoiceable && onSubmit) {
const options = typeof invoiceable === 'object' ? invoiceable : undefined
onSubmit = useInvoiceable(onSubmit, { callback: clearLocalStorage, ...options })
}
const onSubmitInner = useCallback(async (values, ...args) => {
try {
if (onSubmit) {
const options = await onSubmit(values, ...args)
if (!storageKeyPrefix || options?.keepLocalStorage) return
clearLocalStorage(values)
}
} catch (err) {
console.log(err)
toaster.danger(err.message || err.toString?.())
}
}, [onSubmit, toaster, clearLocalStorage, storageKeyPrefix])
return (
<Formik
initialValues={initial}
validateOnChange={validateOnChange}
validationSchema={schema}
initialTouched={validateImmediately && initial}
validateOnBlur={false}
onSubmit={onSubmitInner}
innerRef={innerRef}
>
<FormikForm {...props} noValidate>
<StorageKeyPrefixContext.Provider value={storageKeyPrefix}>
{children}
</StorageKeyPrefixContext.Provider>
</FormikForm>
</Formik>
)
}
export function Select ({ label, items, groupClassName, onChange, noForm, overrideValue, ...props }) {
const [field, meta, helpers] = noForm ? [{}, {}, {}] : useField(props)
const formik = noForm ? null : useFormikContext()
const invalid = meta.touched && meta.error
useEffect(() => {
if (overrideValue) {
helpers.setValue(overrideValue)
}
}, [overrideValue])
return (
<FormGroup label={label} className={groupClassName}>
<BootstrapForm.Select
{...field} {...props}
onChange={(e) => {
if (field?.onChange) {
field.onChange(e)
}
if (onChange) {
onChange(formik, e)
}
}}
isInvalid={invalid}
>
{items.map(item => <option key={item}>{item}</option>)}
</BootstrapForm.Select>
<BootstrapForm.Control.Feedback type='invalid'>
{meta.touched && meta.error}
</BootstrapForm.Control.Feedback>
</FormGroup>
)
}
export function DatePicker ({ fromName, toName, noForm, onMount, ...props }) {
const formik = noForm ? null : useFormikContext()
const onChangeHandler = props.onChange
const [,, fromHelpers] = noForm ? [{}, {}, {}] : useField({ ...props, name: fromName })
const [,, toHelpers] = noForm ? [{}, {}, {}] : useField({ ...props, name: toName })
useEffect(() => {
if (onMount) {
const [from, to] = onMount()
fromHelpers.setValue(from)
toHelpers.setValue(to)
}
}, [])
return (
<ReactDatePicker
{...props}
onChange={([from, to], e) => {
fromHelpers.setValue(from?.toISOString())
toHelpers.setValue(to?.toISOString())
onChangeHandler(formik, [from, to], e)
}}
/>
)
}