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| import ace from 'brace'
import React, { Component } from 'react'
import PropTypes from 'prop-types'
import isEqual from 'lodash.isequal'
const { Range } = ace.acequire('ace/range');
const editorOptions = [
'minLines',
'maxLines',
'readOnly',
'highlightActiveLine',
'tabSize',
'enableBasicAutocompletion',
'enableLiveAutocompletion',
'enableSnippets',
];
export default class ReactAce extends Component {
constructor(props) {
super(props);
[
'onChange',
'onFocus',
'onBlur',
'onCopy',
'onPaste',
'onSelectionChange',
'onScroll',
'handleOptions',
'updateRef',
]
.forEach(method => {
this[method] = this[method].bind(this);
});
}
componentDidMount() {
const {
className,
onBeforeLoad,
mode,
focus,
theme,
fontSize,
value,
defaultValue,
cursorStart,
showGutter,
wrapEnabled,
showPrintMargin,
scrollMargin = [ 0, 0, 0, 0],
keyboardHandler,
onLoad,
commands,
annotations,
markers,
} = this.props;
this.editor = ace.edit(this.refEditor);
if (onBeforeLoad) {
onBeforeLoad(ace);
}
const editorProps = Object.keys(this.props.editorProps);
for (let i = 0; i < editorProps.length; i++) {
this.editor[editorProps[i]] = this.props.editorProps[editorProps[i]];
}
this.editor.renderer.setScrollMargin(scrollMargin[0], scrollMargin[1], scrollMargin[2], scrollMargin[3])
this.editor.getSession().setMode(`ace/mode/${mode}`);
this.editor.setTheme(`ace/theme/${theme}`);
this.editor.setFontSize(fontSize);
this.editor.setValue(defaultValue === undefined ? value : defaultValue, cursorStart);
this.editor.renderer.setShowGutter(showGutter);
this.editor.getSession().setUseWrapMode(wrapEnabled);
this.editor.setShowPrintMargin(showPrintMargin);
this.editor.on('focus', this.onFocus);
this.editor.on('blur', this.onBlur);
this.editor.on('copy', this.onCopy);
this.editor.on('paste', this.onPaste);
this.editor.on('change', this.onChange);
this.editor.getSession().selection.on('changeSelection', this.onSelectionChange);
this.editor.session.on('changeScrollTop', this.onScroll);
this.handleOptions(this.props);
this.editor.getSession().setAnnotations(annotations || []);
if(markers && markers.length > 0){
this.handleMarkers(markers);
}
// get a list of possible options to avoid 'misspelled option errors'
const availableOptions = this.editor.$options;
for (let i = 0; i < editorOptions.length; i++) {
const option = editorOptions[i];
if (availableOptions.hasOwnProperty(option)) {
this.editor.setOption(option, this.props[option]);
}
}
if (Array.isArray(commands)) {
commands.forEach((command) => {
this.editor.commands.addCommand(command);
});
}
if (keyboardHandler) {
this.editor.setKeyboardHandler('ace/keyboard/' + keyboardHandler);
}
if (className) {
this.refEditor.className += ' ' + className;
}
if (focus) {
this.editor.focus();
}
if (onLoad) {
onLoad(this.editor);
}
}
componentWillReceiveProps(nextProps) {
const oldProps = this.props;
for (let i = 0; i < editorOptions.length; i++) {
const option = editorOptions[i];
if (nextProps[option] !== oldProps[option]) {
this.editor.setOption(option, nextProps[option]);
}
}
if (nextProps.className !== oldProps.className) {
let appliedClasses = this.refEditor.className;
let appliedClassesArray = appliedClasses.trim().split(' ');
let oldClassesArray = oldProps.className.trim().split(' ');
oldClassesArray.forEach((oldClass) => {
let index = appliedClassesArray.indexOf(oldClass);
appliedClassesArray.splice(index, 1);
});
this.refEditor.className = ' ' + nextProps.className + ' ' + appliedClassesArray.join(' ');
}
if (nextProps.mode !== oldProps.mode) {
this.editor.getSession().setMode('ace/mode/' + nextProps.mode);
}
if (nextProps.theme !== oldProps.theme) {
this.editor.setTheme('ace/theme/' + nextProps.theme);
}
if (nextProps.keyboardHandler !== oldProps.keyboardHandler) {
Eif (nextProps.keyboardHandler) {
this.editor.setKeyboardHandler('ace/keyboard/' + nextProps.keyboardHandler);
} else {
this.editor.setKeyboardHandler(null);
}
}
if (nextProps.fontSize !== oldProps.fontSize) {
this.editor.setFontSize(nextProps.fontSize);
}
if (nextProps.wrapEnabled !== oldProps.wrapEnabled) {
this.editor.getSession().setUseWrapMode(nextProps.wrapEnabled);
}
if (nextProps.showPrintMargin !== oldProps.showPrintMargin) {
this.editor.setShowPrintMargin(nextProps.showPrintMargin);
}
if (nextProps.showGutter !== oldProps.showGutter) {
this.editor.renderer.setShowGutter(nextProps.showGutter);
}
if (!isEqual(nextProps.setOptions, oldProps.setOptions)) {
this.handleOptions(nextProps);
}
if (!isEqual(nextProps.annotations, oldProps.annotations)) {
this.editor.getSession().setAnnotations(nextProps.annotations || []);
}
if (!isEqual(nextProps.markers, oldProps.markers) && (nextProps.markers && nextProps.markers.length > 0)) {
this.handleMarkers(nextProps.markers);
}
// this doesn't look like it works at all....
Iif (!isEqual(nextProps.scrollMargin, oldProps.scrollMargin)) {
this.handleScrollMargins(nextProps.scrollMargin)
}
if (this.editor && this.editor.getValue() !== nextProps.value) {
// editor.setValue is a synchronous function call, change event is emitted before setValue return.
this.silent = true;
const pos = this.editor.session.selection.toJSON();
this.editor.setValue(nextProps.value, nextProps.cursorStart);
this.editor.session.selection.fromJSON(pos);
this.silent = false;
}
if (nextProps.focus && !oldProps.focus) {
this.editor.focus();
}
if(nextProps.height !== this.props.height || nextProps.width !== this.props.width){
this.editor.resize();
}
}
handleScrollMargins(margins = [0, 0, 0, 0]) {
this.editor.renderer.setScrollMargins(margins[0], margins[1], margins[2], margins[3])
}
componentWillUnmount() {
this.editor.destroy();
this.editor = null;
}
onChange(event) {
if (this.props.onChange && !this.silent) {
const value = this.editor.getValue();
this.props.onChange(value, event);
}
}
onSelectionChange(event) {
if (this.props.onSelectionChange) {
const value = this.editor.getSelection();
this.props.onSelectionChange(value, event);
}
}
onFocus() {
if (this.props.onFocus) {
this.props.onFocus();
}
}
onBlur() {
if (this.props.onBlur) {
this.props.onBlur();
}
}
onCopy(text) {
if (this.props.onCopy) {
this.props.onCopy(text);
}
}
onPaste(text) {
if (this.props.onPaste) {
this.props.onPaste(text);
}
}
onScroll() {
if (this.props.onScroll) {
this.props.onScroll(this.editor);
}
}
handleOptions(props) {
const setOptions = Object.keys(props.setOptions);
for (let y = 0; y < setOptions.length; y++) {
this.editor.setOption(setOptions[y], props.setOptions[setOptions[y]]);
}
}
handleMarkers(markers) {
// remove foreground markers
let currentMarkers = this.editor.getSession().getMarkers(true);
for (const i in currentMarkers) {
Eif (currentMarkers.hasOwnProperty(i)) {
this.editor.getSession().removeMarker(currentMarkers[i].id);
}
}
// remove background markers
currentMarkers = this.editor.getSession().getMarkers(false);
for (const i in currentMarkers) {
Eif (currentMarkers.hasOwnProperty(i)) {
this.editor.getSession().removeMarker(currentMarkers[i].id);
}
}
// add new markers
markers.forEach(({ startRow, startCol, endRow, endCol, className, type, inFront = false }) => {
const range = new Range(startRow, startCol, endRow, endCol);
this.editor.getSession().addMarker(range, className, type, inFront);
});
}
updateRef(item) {
this.refEditor = item;
}
render() {
const { name, width, height, style } = this.props;
const divStyle = { width, height, ...style };
return (
<div ref={this.updateRef}
id={name}
style={divStyle}
>
</div>
);
}
}
ReactAce.propTypes = {
mode: PropTypes.string,
focus: PropTypes.bool,
theme: PropTypes.string,
name: PropTypes.string,
className: PropTypes.string,
height: PropTypes.string,
width: PropTypes.string,
fontSize: PropTypes.oneOfType([
PropTypes.number,
PropTypes.string,
]),
showGutter: PropTypes.bool,
onChange: PropTypes.func,
onCopy: PropTypes.func,
onPaste: PropTypes.func,
onFocus: PropTypes.func,
onBlur: PropTypes.func,
onScroll: PropTypes.func,
value: PropTypes.string,
defaultValue: PropTypes.string,
onLoad: PropTypes.func,
onSelectionChange: PropTypes.func,
onBeforeLoad: PropTypes.func,
minLines: PropTypes.number,
maxLines: PropTypes.number,
readOnly: PropTypes.bool,
highlightActiveLine: PropTypes.bool,
tabSize: PropTypes.number,
showPrintMargin: PropTypes.bool,
cursorStart: PropTypes.number,
editorProps: PropTypes.object,
setOptions: PropTypes.object,
style: PropTypes.object,
scrollMargin: PropTypes.array,
annotations: PropTypes.array,
markers: PropTypes.array,
keyboardHandler: PropTypes.string,
wrapEnabled: PropTypes.bool,
enableBasicAutocompletion: PropTypes.oneOfType([
PropTypes.bool,
PropTypes.array,
]),
enableLiveAutocompletion: PropTypes.oneOfType([
PropTypes.bool,
PropTypes.array,
]),
commands: PropTypes.array,
};
ReactAce.defaultProps = {
name: 'brace-editor',
focus: false,
mode: '',
theme: '',
height: '500px',
width: '500px',
value: '',
fontSize: 12,
showGutter: true,
onChange: null,
onPaste: null,
onLoad: null,
onScroll: null,
minLines: null,
maxLines: null,
readOnly: false,
highlightActiveLine: true,
showPrintMargin: true,
tabSize: 4,
cursorStart: 1,
editorProps: {},
style: {},
scrollMargin: [ 0, 0, 0, 0],
setOptions: {},
wrapEnabled: false,
enableBasicAutocompletion: false,
enableLiveAutocompletion: false,
};
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