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127 lines
2.3 KiB
127 lines
2.3 KiB
import PropTypes from 'prop-types';
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import React, { Component } from 'react';
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import TextInput from './TextInput';
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function parseValue(props, value) {
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const {
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isFloat,
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min,
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max
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} = props;
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if (value == null || value === '') {
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return min;
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}
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let newValue = isFloat ? parseFloat(value) : parseInt(value);
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if (min != null && newValue != null && newValue < min) {
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newValue = min;
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} else if (max != null && newValue != null && newValue > max) {
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newValue = max;
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}
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return newValue;
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}
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class NumberInput 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.state = {
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value: props.value == null ? '' : props.value.toString(),
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isFocused: false
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};
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}
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componentDidUpdate(prevProps, prevState) {
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const { value } = this.props;
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if (value !== prevProps.value && !this.state.isFocused) {
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this.setState({
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value: value == null ? '' : value.toString()
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});
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}
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}
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//
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// Listeners
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onChange = ({ name, value }) => {
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this.setState({ value });
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this.props.onChange({
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name,
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value: parseValue(this.props, value)
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});
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};
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onFocus = () => {
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this.setState({ isFocused: true });
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};
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onBlur = () => {
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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 { value } = this.state;
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const parsedValue = parseValue(this.props, value);
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const stringValue = parsedValue == null ? '' : parsedValue.toString();
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if (stringValue === value) {
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this.setState({ isFocused: false });
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} else {
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this.setState({
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value: stringValue,
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isFocused: false
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});
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}
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onChange({
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name,
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value: parsedValue
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});
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};
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//
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// Render
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render() {
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const value = this.state.value;
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return (
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<TextInput
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{...this.props}
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type="number"
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value={value == null ? '' : value}
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onChange={this.onChange}
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onBlur={this.onBlur}
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onFocus={this.onFocus}
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/>
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);
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}
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}
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NumberInput.propTypes = {
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name: PropTypes.string.isRequired,
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value: PropTypes.number,
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min: PropTypes.number,
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max: PropTypes.number,
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isFloat: PropTypes.bool.isRequired,
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onChange: PropTypes.func.isRequired
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};
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NumberInput.defaultProps = {
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value: null,
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isFloat: false
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};
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export default NumberInput;
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