65 lines
1.9 KiB
JavaScript
65 lines
1.9 KiB
JavaScript
import React, { Component } from 'react';
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import cm from 'codemirror';
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import { getKey, isCtrlKey } from '../util/keys';
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if(typeof window !== 'undefined') {
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require('codemirror/mode/markdown/markdown');
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}
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export default class CodeMirror extends Component {
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handleChange = () => {
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if(!this.editor) return;
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const value = this.editor.getValue();
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if(value !== this.props.value) {
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this.props.onChange && this.props.onChange(value);
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if(this.editor.getValue() !== this.props.value) {
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if(this.state.isControlled) {
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this.editor.setValue(this.props.value);
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} else {
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this.props.value = value;
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}
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}
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}
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}
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checkSubmit = (cm, e) => {
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const key = getKey(e);
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if(isCtrlKey(key)) {
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this.ctrlKey = true;
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} else if(key === 13 && this.ctrlKey) {
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this.props.onSubmit();
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}
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}
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handleKeyUp = (cm, e) => {
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if(isCtrlKey(getKey(e))) this.ctrlKey = false;
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}
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componentDidMount() {
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if(typeof window === 'undefined') return;
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this.editor = cm.fromTextArea(this.textarea, this.props.options);
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this.editor.on('change', this.handleChange);
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if(typeof this.props.onSubmit === 'function') {
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this.editor.on('keydown', this.checkSubmit);
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this.editor.on('keyup', this.handleKeyUp);
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this.setupSubmitKey = true;
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}
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}
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componentWillUnmount() {
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if(this.setupSubmitKey) {
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this.editor.off('keydown', this.checkSubmit);
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this.editor.off('keyup', this.handleKeyUp);
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this.setupSubmitKey = false;
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}
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}
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componentDidUpdate() {
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if(!this.editor || !this.props.value) return;
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if(this.editor.getValue() !== this.props.value) {
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this.editor.setValue(this.props.value);
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}
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}
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render() {
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const { value, className, onChange } = this.props;
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return (
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<div {...{className}}>
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<textarea {...{value, onChange}} ref={el => this.textarea = el} />
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</div>
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);
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}
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} |