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Mini Shell
Mini Shell
// This is just `./ReactInput.js` rewritten in Hooks.
import React, { useCallback, useRef } from 'react'
import PropTypes from 'prop-types'
import {
onChange as onInputChange,
onKeyDown as onInputKeyDown
} from '../inputControl.js'
// Usage:
//
// <ReactInput
// value={this.state.phone}
// onChange={phone => this.setState({ phone })}
// parse={character => character}
// format={value => ({ text: value, template: 'xxxxxxxx' })}/>
//
function Input({
value,
parse,
format,
inputComponent: InputComponent,
onChange,
onKeyDown,
...rest
}, ref) {
const internalRef = useRef();
const setRef = useCallback((instance) => {
internalRef.current = instance;
if (ref) {
if (typeof ref === 'function') {
ref(instance)
} else {
ref.current = instance
}
}
}, [ref]);
const _onChange = useCallback((event) => {
return onInputChange(
event,
internalRef.current,
parse,
format,
onChange
)
}, [internalRef, parse, format, onChange])
const _onKeyDown = useCallback((event) => {
if (onKeyDown) {
onKeyDown(event)
}
return onInputKeyDown(
event,
internalRef.current,
parse,
format,
onChange
)
}, [internalRef, parse, format, onChange, onKeyDown])
return (
<InputComponent
{...rest}
ref={setRef}
value={format(isEmptyValue(value) ? '' : value).text}
onKeyDown={_onKeyDown}
onChange={_onChange}/>
)
}
Input = React.forwardRef(Input)
Input.propTypes = {
// Parses a single characher of `<input/>` text.
parse: PropTypes.func.isRequired,
// Formats `value` into `<input/>` text.
format: PropTypes.func.isRequired,
// Renders `<input/>` by default.
inputComponent: PropTypes.elementType.isRequired,
// `<input/>` `type` attribute.
type: PropTypes.string.isRequired,
// Is parsed from <input/> text.
value: PropTypes.string,
// This handler is called each time `<input/>` text is changed.
onChange: PropTypes.func.isRequired,
// Passthrough
onKeyDown: PropTypes.func,
onCut: PropTypes.func,
onPaste: PropTypes.func
}
Input.defaultProps = {
// Renders `<input/>` by default.
inputComponent: 'input',
// `<input/>` `type` attribute.
type: 'text'
}
export default Input
function isEmptyValue(value) {
return value === undefined || value === null
}
Zerion Mini Shell 1.0