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173 lines
3.5 KiB
173 lines
3.5 KiB
3 years ago
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import classNames from 'classnames';
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import PropTypes from 'prop-types';
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import React, { Component } from 'react';
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import styles from './TextArea.css';
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class TextArea extends Component {
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//
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// Lifecycle
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constructor(props, context) {
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super(props, context);
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this._input = null;
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this._selectionStart = null;
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this._selectionEnd = null;
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this._selectionTimeout = null;
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this._isMouseTarget = false;
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}
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componentDidMount() {
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window.addEventListener('mouseup', this.onDocumentMouseUp);
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}
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componentWillUnmount() {
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window.removeEventListener('mouseup', this.onDocumentMouseUp);
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if (this._selectionTimeout) {
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this._selectionTimeout = clearTimeout(this._selectionTimeout);
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}
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}
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//
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// Control
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setInputRef = (ref) => {
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this._input = ref;
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};
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selectionChange() {
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if (this._selectionTimeout) {
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this._selectionTimeout = clearTimeout(this._selectionTimeout);
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}
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this._selectionTimeout = setTimeout(() => {
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const selectionStart = this._input.selectionStart;
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const selectionEnd = this._input.selectionEnd;
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const selectionChanged = (
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this._selectionStart !== selectionStart ||
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this._selectionEnd !== selectionEnd
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);
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this._selectionStart = selectionStart;
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this._selectionEnd = selectionEnd;
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if (this.props.onSelectionChange && selectionChanged) {
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this.props.onSelectionChange(selectionStart, selectionEnd);
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}
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}, 10);
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}
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//
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// Listeners
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onChange = (event) => {
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const {
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name,
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onChange
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} = this.props;
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const payload = {
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name,
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value: event.target.value
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};
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onChange(payload);
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};
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onFocus = (event) => {
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if (this.props.onFocus) {
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this.props.onFocus(event);
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}
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this.selectionChange();
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};
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onKeyUp = () => {
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this.selectionChange();
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};
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onMouseDown = () => {
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this._isMouseTarget = true;
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};
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onMouseUp = () => {
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this.selectionChange();
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};
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onDocumentMouseUp = () => {
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if (this._isMouseTarget) {
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this.selectionChange();
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}
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this._isMouseTarget = false;
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};
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//
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// Render
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render() {
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const {
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className,
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readOnly,
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autoFocus,
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placeholder,
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name,
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value,
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hasError,
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hasWarning,
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onBlur
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} = this.props;
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return (
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<textarea
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ref={this.setInputRef}
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readOnly={readOnly}
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autoFocus={autoFocus}
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placeholder={placeholder}
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className={classNames(
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className,
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readOnly && styles.readOnly,
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hasError && styles.hasError,
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hasWarning && styles.hasWarning
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)}
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name={name}
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value={value}
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onChange={this.onChange}
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onFocus={this.onFocus}
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onBlur={onBlur}
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onKeyUp={this.onKeyUp}
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onMouseDown={this.onMouseDown}
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onMouseUp={this.onMouseUp}
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/>
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);
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}
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}
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TextArea.propTypes = {
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className: PropTypes.string.isRequired,
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readOnly: PropTypes.bool,
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autoFocus: PropTypes.bool,
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placeholder: PropTypes.string,
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name: PropTypes.string.isRequired,
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value: PropTypes.oneOfType([PropTypes.string, PropTypes.number, PropTypes.array]).isRequired,
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hasError: PropTypes.bool,
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hasWarning: PropTypes.bool,
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onChange: PropTypes.func.isRequired,
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onFocus: PropTypes.func,
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onBlur: PropTypes.func,
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onSelectionChange: PropTypes.func
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};
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TextArea.defaultProps = {
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className: styles.input,
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type: 'text',
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readOnly: false,
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autoFocus: false,
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value: ''
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};
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export default TextArea;
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