import React from 'react';
import nodeHeight from './nodeHeight';
import {Utils} from 'ship-components-utility';
import css from './text-input.css';
export default class TextInput extends React.Component {
constructor(props) {
super(props);
this.state = {
focus: false,
height: null,
minHeight: -Infinity,
maxHeight: Infinity
}
this.calculateHeight = this.calculateHeight.bind(this);
this.handleFocus = this.handleFocus.bind(this);
this.handleBlur = this.handleBlur.bind(this);
this.handleChange = this.handleChange.bind(this);
this.handleKeyDown = this.handleKeyDown.bind(this);
this.handleEnterKey = this.handleEnterKey.bind(this);
this.getFontSize = this.getFontSize.bind(this);
}
componentDidMount() {
this.calculateHeight();
window.addEventListener('resize', this.calculateHeight);
}
componentWillReceiveProps() {
// Render the content and then update the state/height
clearTimeout(this.updateId);
this.updateId = setTimeout(this.calculateHeight, 0);
clearTimeout(this.transitionUpdateId)
this.transitionUpdateId = setTimeout(this.calculateHeight, 250);
}
componentWillUnmount() {
clearTimeout(this.updateId);
clearTimeout(this.transitionUpdateId)
window.removeEventListener('resize', this.calculateHeight);
}
handleFocus(event) {
if (!this.props.editable) {
return;
}
this.setState({
focus: true
});
if (typeof this.props.onFocus === 'function') {
this.props.onFocus(event);
}
}
handleBlur(event) {
this.setState({
focus: false
});
if (typeof this.props.onBlur === 'function') {
this.props.onBlur(event);
}
}
handleChange(event) {
this.calculateHeight();
if (typeof this.props.onChange === 'function') {
this.props.onChange(event);
}
}
handleKeyDown(event) {
if (event.key === 'Enter' || event.keyCode === 13) {
this.handleEnterKey(event);
}
if (typeof this.props.onKeyDown === 'function') {
this.props.onKeyDown(event);
}
}
handleEnterKey(event) {
if (!(this.props.multiline && event.shiftKey)) {
// prevent new line if not Shift + Enter
event.preventDefault();
}
if (typeof this.props.onEnterKeyDown === 'function') {
this.props.onEnterKeyDown(event);
}
}
/**
* Calculate the height of the node and update the state
*/
calculateHeight() {
let state = nodeHeight(
this.refs.input,
this.props.minRows,
this.props.maxRows
);
// ONESONY-693, IE11 nodeHeight workaround
if (Utils.isIEBrowser() && (!this.props.value || this.props.value.length === 0)) {
state.height = parseInt(this.getFontSize(), 10);
}
this.setState(state);
}
getFontSize() {
return window.getComputedStyle(this.refs.wrapper).getPropertyValue('font-size');
}
/**
* Get css class names for the component for it's different states
* @return {String}
*/
classNames() {
let classes = ['text-input', css.container, this.props.className];
let value = this.props.value || this.props.defaultValue;
let valueIsNotEmpty = value && value.length > 0;
if (this.state.focus || valueIsNotEmpty) {
classes.push(css.active);
}
if (this.state.focus) {
classes.push(css.focus);
}
if (this.props.label) {
classes.push(css.hasLabel);
}
if (valueIsNotEmpty && typeof this.props.validate === 'function') {
if (this.validate(this.props.value)) {
classes.push(css.success);
} else {
classes.push(css.error);
}
}
return classes
.filter((cla) => typeof cla === 'string' && cla.length)
.join(' ')
.trim();
}
/**
* If we have a validate function call it
* @param {Mixed} value
* @return {Boolean}
*/
validate(value) {
if (typeof this.props.validate !== 'function') {
return true;
}
return this.props.validate(value);
}
/**
* Render
* @return {React}
*/
render(){
let props = this.props;
let styles = { props };
styles.height = this.state.height;
let maxHeight = Math.max(styles.maxHeight ? styles.maxHeight : -Infinity, this.state.maxHeight);
// Hide scrollbar if we don't need it
if (maxHeight >= this.state.height) {
styles.overflow = 'hidden';
} else {
styles.overflow = 'auto';
}
return (
<div className={this.classNames()}>
<div className={css.fieldContainer}>
<textarea
placeholder={this.props.placeholder}
tabIndex={this.props.tabIndex}
onDragStart={this.props.onDragStart}
onDragEnd={this.props.onDragEnd}
onDragOver={this.props.onDragOver}
className={'text-input--field ' + css.field}
ref='input'
disabled={this.props.disabled || !this.props.editable}
style={styles}
value={this.props.value}
onClick={this.props.onClick}
onFocus={this.handleFocus}
onBlur={this.handleBlur}
onChange={this.handleChange}
onKeyDown={this.handleKeyDown}
/>
{this.props.label ?
<label className={'text-input--label ' + css.label}>
{this.props.label}
</label>
: null}
</div>
{this.props.error ?
<label className={'text-input--error ' + css.error}>
{this.props.error}
</label>
: null}
</div>
);
}
}
/**
* Defaults
* @type {Object}
*/
TextInput.defaultProps = {
editable: true,
value: '',
label: null
};
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