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Files
homebrewery/shared/naturalcrit/codeEditor/codeEditor.jsx
2022-10-18 13:52:22 -04:00

398 lines
13 KiB
JavaScript

/* eslint-disable max-lines */
require('./codeEditor.less');
const React = require('react');
const createClass = require('create-react-class');
const _ = require('lodash');
const cx = require('classnames');
const closeTag = require('./close-tag');
let CodeMirror;
if(typeof navigator !== 'undefined'){
CodeMirror = require('codemirror');
//Language Modes
require('codemirror/mode/gfm/gfm.js'); //Github flavoured markdown
require('codemirror/mode/css/css.js');
require('codemirror/mode/javascript/javascript.js');
//Addons
//Code folding
require('codemirror/addon/fold/foldcode.js');
require('codemirror/addon/fold/foldgutter.js');
//Search and replace
require('codemirror/addon/search/search.js');
require('codemirror/addon/search/searchcursor.js');
require('codemirror/addon/search/jump-to-line.js');
require('codemirror/addon/search/match-highlighter.js');
require('codemirror/addon/search/matchesonscrollbar.js');
require('codemirror/addon/dialog/dialog.js');
//Trailing space highlighting
// require('codemirror/addon/edit/trailingspace.js');
//Active line highlighting
// require('codemirror/addon/selection/active-line.js');
//Scroll past last line
require('codemirror/addon/scroll/scrollpastend.js');
//Auto-closing
//XML code folding is a requirement of the auto-closing tag feature and is not enabled
require('codemirror/addon/fold/xml-fold.js');
require('codemirror/addon/edit/closetag.js');
const foldCode = require('./fold-code');
foldCode.registerHomebreweryHelper(CodeMirror);
}
const CodeEditor = createClass({
displayName : 'CodeEditor',
getDefaultProps : function() {
return {
language : '',
value : '',
wrap : true,
onChange : ()=>{},
enableFolding : true
};
},
getInitialState : function() {
return {
docs : {}
};
},
componentDidMount : function() {
this.buildEditor();
const newDoc = CodeMirror.Doc(this.props.value, this.props.language);
this.codeMirror.swapDoc(newDoc);
},
componentDidUpdate : function(prevProps) {
if(prevProps.view !== this.props.view){ //view changed; swap documents
let newDoc;
if(!this.state.docs[this.props.view]) {
newDoc = CodeMirror.Doc(this.props.value, this.props.language);
} else {
newDoc = this.state.docs[this.props.view];
}
const oldDoc = { [prevProps.view]: this.codeMirror.swapDoc(newDoc) };
this.setState((prevState)=>({
docs : _.merge({}, prevState.docs, oldDoc)
}));
this.props.rerenderParent();
} else if(this.codeMirror?.getValue() != this.props.value) { //update editor contents if brew.text is changed from outside
this.codeMirror.setValue(this.props.value);
}
if(this.props.enableFolding) {
this.codeMirror.setOption('foldOptions', this.foldOptions(this.codeMirror));
} else {
this.codeMirror.setOption('foldOptions', false);
}
},
buildEditor : function() {
this.codeMirror = CodeMirror(this.refs.editor, {
lineNumbers : true,
lineWrapping : this.props.wrap,
indentWithTabs : true,
tabSize : 2,
historyEventDelay : 250,
scrollPastEnd : true,
extraKeys : {
'Ctrl-B' : this.makeBold,
'Cmd-B' : this.makeBold,
'Ctrl-I' : this.makeItalic,
'Cmd-I' : this.makeItalic,
'Ctrl-U' : this.makeUnderline,
'Cmd-U' : this.makeUnderline,
'Ctrl-.' : this.makeNbsp,
'Cmd-.' : this.makeNbsp,
'Shift-Ctrl-.' : this.makeSpace,
'Shift-Cmd-.' : this.makeSpace,
'Shift-Ctrl-,' : this.removeSpace,
'Shift-Cmd-,' : this.removeSpace,
'Ctrl-M' : this.makeSpan,
'Cmd-M' : this.makeSpan,
'Shift-Ctrl-M' : this.makeDiv,
'Shift-Cmd-M' : this.makeDiv,
'Ctrl-/' : this.makeComment,
'Cmd-/' : this.makeComment,
'Ctrl-K' : this.makeLink,
'Cmd-K' : this.makeLink,
'Ctrl-L' : ()=>this.makeList('UL'),
'Cmd-L' : ()=>this.makeList('UL'),
'Shift-Ctrl-L' : ()=>this.makeList('OL'),
'Shift-Cmd-L' : ()=>this.makeList('OL'),
'Shift-Ctrl-1' : ()=>this.makeHeader(1),
'Shift-Ctrl-2' : ()=>this.makeHeader(2),
'Shift-Ctrl-3' : ()=>this.makeHeader(3),
'Shift-Ctrl-4' : ()=>this.makeHeader(4),
'Shift-Ctrl-5' : ()=>this.makeHeader(5),
'Shift-Ctrl-6' : ()=>this.makeHeader(6),
'Shift-Cmd-1' : ()=>this.makeHeader(1),
'Shift-Cmd-2' : ()=>this.makeHeader(2),
'Shift-Cmd-3' : ()=>this.makeHeader(3),
'Shift-Cmd-4' : ()=>this.makeHeader(4),
'Shift-Cmd-5' : ()=>this.makeHeader(5),
'Shift-Cmd-6' : ()=>this.makeHeader(6),
'Shift-Ctrl-Enter' : this.newColumn,
'Shift-Cmd-Enter' : this.newColumn,
'Ctrl-Enter' : this.newPage,
'Cmd-Enter' : this.newPage,
'Ctrl-F' : 'findPersistent',
'Cmd-F' : 'findPersistent',
'Shift-Enter' : 'findPersistentPrevious',
'Ctrl-[' : this.foldAllCode,
'Cmd-[' : this.foldAllCode,
'Ctrl-]' : this.unfoldAllCode,
'Cmd-]' : this.unfoldAllCode
},
foldGutter : true,
foldOptions : this.foldOptions(this.codeMirror),
gutters : ['CodeMirror-linenumbers', 'CodeMirror-foldgutter'],
autoCloseTags : true,
styleActiveLine : true,
showTrailingSpace : false,
// specialChars : / /,
// specialCharPlaceholder : function(char) {
// const el = document.createElement('span');
// el.className = 'cm-space';
// el.innerHTML = ' ';
// return el;
// }
});
closeTag.autoCloseCurlyBraces(CodeMirror, this.codeMirror);
// Note: codeMirror passes a copy of itself in this callback. cm === this.codeMirror. Either one works.
this.codeMirror.on('change', (cm)=>{this.props.onChange(cm.getValue());});
this.updateSize();
},
makeHeader : function (number) {
const selection = this.codeMirror.getSelection();
const header = Array(number).fill('#').join('');
this.codeMirror.replaceSelection(`${header} ${selection}`, 'around');
const cursor = this.codeMirror.getCursor();
this.codeMirror.setCursor({ line: cursor.line, ch: cursor.ch + selection.length + number + 1 });
},
makeBold : function() {
const selection = this.codeMirror.getSelection(), t = selection.slice(0, 2) === '**' && selection.slice(-2) === '**';
this.codeMirror.replaceSelection(t ? selection.slice(2, -2) : `**${selection}**`, 'around');
if(selection.length === 0){
const cursor = this.codeMirror.getCursor();
this.codeMirror.setCursor({ line: cursor.line, ch: cursor.ch - 2 });
}
},
makeItalic : function() {
const selection = this.codeMirror.getSelection(), t = selection.slice(0, 1) === '*' && selection.slice(-1) === '*';
this.codeMirror.replaceSelection(t ? selection.slice(1, -1) : `*${selection}*`, 'around');
if(selection.length === 0){
const cursor = this.codeMirror.getCursor();
this.codeMirror.setCursor({ line: cursor.line, ch: cursor.ch - 1 });
}
},
makeNbsp : function() {
this.codeMirror.replaceSelection(' ', 'end');
},
makeSpace : function() {
const selection = this.codeMirror.getSelection();
const t = selection.slice(0, 8) === '{{width:' && selection.slice(0 -4) === '% }}';
if(t){
const percent = parseInt(selection.slice(8, -4)) + 10;
this.codeMirror.replaceSelection(percent < 90 ? `{{width:${percent}% }}` : '{{width:100% }}', 'around');
} else {
this.codeMirror.replaceSelection(`{{width:10% }}`, 'around');
}
},
removeSpace : function() {
const selection = this.codeMirror.getSelection();
const t = selection.slice(0, 8) === '{{width:' && selection.slice(0 -4) === '% }}';
if(t){
const percent = parseInt(selection.slice(8, -4)) - 10;
this.codeMirror.replaceSelection(percent > 10 ? `{{width:${percent}% }}` : '', 'around');
}
},
newColumn : function() {
this.codeMirror.replaceSelection('\n\\column\n\n', 'end');
},
newPage : function() {
this.codeMirror.replaceSelection('\n\\page\n\n', 'end');
},
injectText : function(injectText, overwrite=true) {
const cm = this.codeMirror;
if(!overwrite) {
cm.setCursor(cm.getCursor('from'));
}
cm.replaceSelection(injectText, 'end');
cm.focus();
},
makeUnderline : function() {
const selection = this.codeMirror.getSelection(), t = selection.slice(0, 3) === '<u>' && selection.slice(-4) === '</u>';
this.codeMirror.replaceSelection(t ? selection.slice(3, -4) : `<u>${selection}</u>`, 'around');
if(selection.length === 0){
const cursor = this.codeMirror.getCursor();
this.codeMirror.setCursor({ line: cursor.line, ch: cursor.ch - 4 });
}
},
makeSpan : function() {
const selection = this.codeMirror.getSelection(), t = selection.slice(0, 2) === '{{' && selection.slice(-2) === '}}';
this.codeMirror.replaceSelection(t ? selection.slice(2, -2) : `{{ ${selection}}}`, 'around');
if(selection.length === 0){
const cursor = this.codeMirror.getCursor();
this.codeMirror.setCursor({ line: cursor.line, ch: cursor.ch - 2 });
}
},
makeDiv : function() {
const selection = this.codeMirror.getSelection(), t = selection.slice(0, 2) === '{{' && selection.slice(-2) === '}}';
this.codeMirror.replaceSelection(t ? selection.slice(2, -2) : `{{\n${selection}\n}}`, 'around');
if(selection.length === 0){
const cursor = this.codeMirror.getCursor();
this.codeMirror.setCursor({ line: cursor.line - 1, ch: cursor.ch }); // set to -2? if wanting to enter classes etc. if so, get rid of first \n when replacing selection
}
},
makeComment : function() {
let regex;
let cursorPos;
let newComment;
const selection = this.codeMirror.getSelection();
if(this.props.language === 'gfm'){
regex = /^\s*(<!--\s?)(.*?)(\s?-->)\s*$/gs;
cursorPos = 4;
newComment = `<!-- ${selection} -->`;
} else {
regex = /^\s*(\/\*\s?)(.*?)(\s?\*\/)\s*$/gs;
cursorPos = 3;
newComment = `/* ${selection} */`;
}
this.codeMirror.replaceSelection(regex.test(selection) == true ? selection.replace(regex, '$2') : newComment, 'around');
if(selection.length === 0){
const cursor = this.codeMirror.getCursor();
this.codeMirror.setCursor({ line: cursor.line, ch: cursor.ch - cursorPos });
};
},
makeLink : function() {
const isLink = /^\[(.*)\]\((.*)\)$/;
const selection = this.codeMirror.getSelection().trim();
let match;
if(match = isLink.exec(selection)){
const altText = match[1];
const url = match[2];
this.codeMirror.replaceSelection(`${altText} ${url}`);
const cursor = this.codeMirror.getCursor();
this.codeMirror.setSelection({ line: cursor.line, ch: cursor.ch - url.length }, { line: cursor.line, ch: cursor.ch });
} else {
this.codeMirror.replaceSelection(`[${selection || 'alt text'}](url)`);
const cursor = this.codeMirror.getCursor();
this.codeMirror.setSelection({ line: cursor.line, ch: cursor.ch - 4 }, { line: cursor.line, ch: cursor.ch - 1 });
}
},
makeList : function(listType) {
const selectionStart = this.codeMirror.getCursor('from'), selectionEnd = this.codeMirror.getCursor('to');
this.codeMirror.setSelection(
{ line: selectionStart.line, ch: 0 },
{ line: selectionEnd.line, ch: this.codeMirror.getLine(selectionEnd.line).length }
);
const newSelection = this.codeMirror.getSelection();
const regex = /^\d+\.\s|^-\s/gm;
if(newSelection.match(regex) != null){ // if selection IS A LIST
this.codeMirror.replaceSelection(newSelection.replace(regex, ''), 'around');
} else { // if selection IS NOT A LIST
listType == 'UL' ? this.codeMirror.replaceSelection(newSelection.replace(/^/gm, `- `), 'around') :
this.codeMirror.replaceSelection(newSelection.replace(/^/gm, (()=>{
let n = 1;
return ()=>{
return `${n++}. `;
};
})()), 'around');
}
},
foldAllCode : function() {
this.codeMirror.execCommand('foldAll');
},
unfoldAllCode : function() {
this.codeMirror.execCommand('unfoldAll');
},
//=-- Externally used -==//
setCursorPosition : function(line, char){
setTimeout(()=>{
this.codeMirror.focus();
this.codeMirror.doc.setCursor(line, char);
}, 10);
},
getCursorPosition : function(){
return this.codeMirror.getCursor();
},
updateSize : function(){
this.codeMirror.refresh();
},
redo : function(){
return this.codeMirror.redo();
},
undo : function(){
return this.codeMirror.undo();
},
historySize : function(){
return this.codeMirror.doc.historySize();
},
foldOptions : function(cm){
return {
scanUp : true,
rangeFinder : CodeMirror.fold.homebrewery,
widget : (from, to)=>{
let text = '';
let currentLine = from.line;
const maxLength = 50;
let foldPreviewText = '';
while (currentLine <= to.line && text.length <= maxLength) {
const currentText = this.codeMirror.getLine(currentLine);
currentLine++;
if(currentText[0] == '#'){
foldPreviewText = currentText;
break;
}
if(!foldPreviewText && currentText != '\n') {
foldPreviewText = currentText;
}
}
text = foldPreviewText || `Lines ${from.line+1}-${to.line+1}`;
text = text.trim();
if(text.length > maxLength)
text = `${text.substr(0, maxLength)}...`;
return `\u21A4 ${text} \u21A6`;
}
};
},
//----------------------//
render : function(){
return <div className='codeEditor' ref='editor' style={this.props.style}/>;
}
});
module.exports = CodeEditor;