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| // Dependencies.
import React from 'react'
import PropTypes from 'prop-types'
// Utility methods.
import {
bind,
exists,
regex,
trim,
unique
} from '@t7/utils'
// UI components.
import {
ErrorMessage,
Label
} from '../'
// Define class.
class Input extends React.Component {
constructor (props) {
// Pass `props` into scope.
super(props)
// Bind context.
bind(this)
// Get default state.
this.defaultState()
}
// Set default state.
defaultState () {
// Props.
const {
mask,
id = unique(),
value = ''
} = this.props
this.state = {
id,
oldValue: value,
value: mask(String(value))
}
}
// Update state.
static getDerivedStateFromProps (props = {}, state = {}) {
// Props.
const {
mask,
value
} = props
// State.
const { oldValue } = state
// Set in conditional.
let newState = null
// Update?
if (
exists(value) &&
value !== oldValue
) {
newState = {
oldValue: value,
value: mask(String(value))
}
}
// Expose object.
return newState
}
// Apply mask.
applyMask (e = {}, value = '') {
// Get element.
const {
currentTarget: el = {}
} = e
// To string.
value = String(value)
// Set in conditional.
let oldCaret
let oldSlice
// Supports selection?
Eif (typeof el.selectionStart === 'number') {
/*
Value: from start,
to caret position.
*/
oldCaret = el.selectionStart
oldSlice = value.slice(0, oldCaret)
}
// Format.
value = this.props.mask(value)
// Wait for re-render.
window.requestAnimationFrame(() => {
// Supports selection?
Eif (
exists(oldCaret) &&
el === document.activeElement &&
typeof el.setSelectionRange === 'function'
) {
/*
Caret: Based on the diff
between old/new values.
*/
const newSlice = value.slice(0, oldCaret)
// Match list.
const rMatch = regex([
',',
'.'
])
// Ignore list.
const rIgnore = regex([
'/',
'-'
])
// Check for special characters.
const newMatch = newSlice.match(rMatch) || []
const oldMatch = oldSlice.match(rMatch) || []
// Get diff.
const diff = (
newMatch.length ||
oldMatch.length
? newMatch.length - oldMatch.length
: newSlice.length - oldSlice.length
)
// New caret.
const newCaret = oldCaret + diff
// Move caret?
Eif (!value.match(rIgnore)) {
el.setSelectionRange(newCaret, newCaret)
}
}
})
// Expose string.
return value
}
// Change event.
handleChange (e = {}) {
// Get element.
const {
type,
currentTarget: el = {}
} = e
// Get value.
let {
value = ''
} = el
// Clean up.
if (type === 'blur') {
value = trim(value)
}
// Apply mask.
value = this.applyMask(e, value)
// Update state.
this.setState({ value })
// Callback.
this.props.handleChange(e, value)
}
// Render method.
render () {
// State.
const {
id,
value
} = this.state
// Props.
const {
autofocus,
classNameForAbbr,
classNameForError,
classNameForInput,
classNameForLabel,
disabled,
errorMessage,
label,
maxlength,
name,
placeholder,
readonly,
required,
size,
styleForAbbr,
styleForError,
styleForInput,
styleForLabel,
type,
width
} = this.props
// Events.
const { handleChange } = this
// Build class name.
let className = [
't7-input',
classNameForInput
]
if (
size > 0 ||
width === 'auto'
) {
className.push('t7-input--width-auto')
}
// Convert to string.
className = trim(
className.join(' ')
)
// Props for error.
const propsForError = {
classNameForError,
errorMessage,
styleForError
}
// Props for label.
const propsForLabel = {
classNameForAbbr,
classNameForLabel,
id,
label,
required,
styleForAbbr,
styleForLabel
}
// Props for input.
const propsForInput = {
className,
disabled,
id,
name,
placeholder,
required,
size,
type,
value,
autoFocus: autofocus,
maxLength: maxlength,
onBlur: handleChange,
onChange: handleChange,
readOnly: readonly,
style: styleForInput
}
// Expose UI.
return (
<React.Fragment>
<Label
{...propsForLabel}
/>
<input
{...propsForInput}
/>
<ErrorMessage
{...propsForError}
/>
</React.Fragment>
)
}
}
// Validation.
Input.propTypes = {
autofocus: PropTypes.bool,
classNameForAbbr: PropTypes.string,
classNameForError: PropTypes.string,
classNameForInput: PropTypes.string,
classNameForLabel: PropTypes.string,
disabled: PropTypes.bool,
errorMessage: PropTypes.string,
id: PropTypes.string,
label: PropTypes.string,
name: PropTypes.string,
placeholder: PropTypes.string,
readonly: PropTypes.bool,
required: PropTypes.bool,
styleForAbbr: PropTypes.object,
styleForError: PropTypes.object,
styleForInput: PropTypes.object,
styleForLabel: PropTypes.object,
type: PropTypes.string,
width: PropTypes.string,
maxlength: PropTypes.oneOfType([
PropTypes.string,
PropTypes.number
]),
size: PropTypes.oneOfType([
PropTypes.string,
PropTypes.number
]),
value: PropTypes.oneOfType([
PropTypes.string,
PropTypes.number
]),
// Events.
handleChange: PropTypes.func,
// Mask value.
mask: PropTypes.func
}
// Prop defaults.
Input.defaultProps = {
type: 'text',
// Events.
handleChange: () => {},
// Mask value.
mask: (value) => {
return value
}
}
// Export.
export default Input
|