resources/js/wysiwyg/plugin-codeeditor.js
function elemIsCodeBlock(elem) {
return elem.tagName.toLowerCase() === 'code-block';
}
/**
* @param {Editor} editor
* @param {String} code
* @param {String} language
* @param {String} direction
* @param {function(string, string)} callback (Receives (code: string,language: string)
*/
function showPopup(editor, code, language, direction, callback) {
/** @var {CodeEditor} codeEditor * */
const codeEditor = window.$components.first('code-editor');
const bookMark = editor.selection.getBookmark();
codeEditor.open(code, language, direction, (newCode, newLang) => {
callback(newCode, newLang);
editor.focus();
editor.selection.moveToBookmark(bookMark);
}, () => {
editor.focus();
editor.selection.moveToBookmark(bookMark);
});
}
/**
* @param {Editor} editor
* @param {CodeBlockElement} codeBlock
*/
function showPopupForCodeBlock(editor, codeBlock) {
const direction = codeBlock.getAttribute('dir') || '';
showPopup(editor, codeBlock.getContent(), codeBlock.getLanguage(), direction, (newCode, newLang) => {
codeBlock.setContent(newCode, newLang);
});
}
/**
* Define our custom code-block HTML element that we use.
* Needs to be delayed since it needs to be defined within the context of the
* child editor window and document, hence its definition within a callback.
* @param {Editor} editor
*/
function defineCodeBlockCustomElement(editor) {
const doc = editor.getDoc();
const win = doc.defaultView;
class CodeBlockElement extends win.HTMLElement {
/**
* @type {?SimpleEditorInterface}
*/
editor = null;
constructor() {
super();
this.attachShadow({mode: 'open'});
const stylesToCopy = document.head.querySelectorAll('link[rel="stylesheet"]:not([media="print"]),style');
const copiedStyles = Array.from(stylesToCopy).map(styleEl => styleEl.cloneNode(true));
const cmContainer = document.createElement('div');
cmContainer.style.pointerEvents = 'none';
cmContainer.contentEditable = 'false';
cmContainer.classList.add('CodeMirrorContainer');
cmContainer.classList.toggle('dark-mode', document.documentElement.classList.contains('dark-mode'));
this.shadowRoot.append(...copiedStyles, cmContainer);
}
getLanguage() {
const getLanguageFromClassList = classes => {
const langClasses = classes.split(' ').filter(cssClass => cssClass.startsWith('language-'));
return (langClasses[0] || '').replace('language-', '');
};
const code = this.querySelector('code');
const pre = this.querySelector('pre');
return getLanguageFromClassList(pre.className) || (code && getLanguageFromClassList(code.className)) || '';
}
setContent(content, language) {
if (this.editor) {
this.editor.setContent(content);
this.editor.setMode(language, content);
}
let pre = this.querySelector('pre');
if (!pre) {
pre = doc.createElement('pre');
this.append(pre);
}
pre.innerHTML = '';
const code = doc.createElement('code');
pre.append(code);
code.innerText = content;
code.className = `language-${language}`;
}
getContent() {
const code = this.querySelector('code') || this.querySelector('pre');
const tempEl = document.createElement('pre');
tempEl.innerHTML = code.innerHTML.replace(/\ufeff/g, '');
const brs = tempEl.querySelectorAll('br');
for (const br of brs) {
br.replaceWith('\n');
}
return tempEl.textContent;
}
connectedCallback() {
const connectedTime = Date.now();
if (this.editor) {
return;
}
this.cleanChildContent();
const content = this.getContent();
const lines = content.split('\n').length;
const height = (lines * 19.2) + 18 + 24;
this.style.height = `${height}px`;
const container = this.shadowRoot.querySelector('.CodeMirrorContainer');
const renderEditor = Code => {
this.editor = Code.wysiwygView(container, this.shadowRoot, content, this.getLanguage());
setTimeout(() => {
this.style.height = null;
}, 12);
};
window.importVersioned('code').then(Code => {
const timeout = (Date.now() - connectedTime < 20) ? 20 : 0;
setTimeout(() => renderEditor(Code), timeout);
});
}
cleanChildContent() {
const pre = this.querySelector('pre');
if (!pre) return;
for (const preChild of pre.childNodes) {
if (preChild.nodeName === '#text' && preChild.textContent === '') {
preChild.remove();
}
}
}
}
win.customElements.define('code-block', CodeBlockElement);
}
/**
* @param {Editor} editor
*/
function register(editor) {
editor.ui.registry.addIcon('codeblock', '<svg width="24" height="24"><path d="M4 3h16c.6 0 1 .4 1 1v16c0 .6-.4 1-1 1H4a1 1 0 0 1-1-1V4c0-.6.4-1 1-1Zm1 2v14h14V5Z"/><path d="M11.103 15.423c.277.277.277.738 0 .922a.692.692 0 0 1-1.106 0l-4.057-3.78a.738.738 0 0 1 0-1.107l4.057-3.872c.276-.277.83-.277 1.106 0a.724.724 0 0 1 0 1.014L7.6 12.012ZM12.897 8.577c-.245-.312-.2-.675.08-.955.28-.281.727-.27 1.027.033l4.057 3.78a.738.738 0 0 1 0 1.107l-4.057 3.872c-.277.277-.83.277-1.107 0a.724.724 0 0 1 0-1.014l3.504-3.412z"/></svg>');
editor.ui.registry.addButton('codeeditor', {
tooltip: 'Insert code block',
icon: 'codeblock',
onAction() {
editor.execCommand('codeeditor');
},
});
editor.ui.registry.addButton('editcodeeditor', {
tooltip: 'Edit code block',
icon: 'edit-block',
onAction() {
editor.execCommand('codeeditor');
},
});
editor.addCommand('codeeditor', () => {
const selectedNode = editor.selection.getNode();
const doc = selectedNode.ownerDocument;
if (elemIsCodeBlock(selectedNode)) {
showPopupForCodeBlock(editor, selectedNode);
} else {
const textContent = editor.selection.getContent({format: 'text'});
const direction = document.dir === 'rtl' ? 'ltr' : '';
showPopup(editor, textContent, '', direction, (newCode, newLang) => {
const pre = doc.createElement('pre');
const code = doc.createElement('code');
code.classList.add(`language-${newLang}`);
code.innerText = newCode;
if (direction) {
pre.setAttribute('dir', direction);
}
pre.append(code);
editor.insertContent(pre.outerHTML);
});
}
});
editor.on('dblclick', () => {
const selectedNode = editor.selection.getNode();
if (elemIsCodeBlock(selectedNode)) {
showPopupForCodeBlock(editor, selectedNode);
}
});
editor.on('PreInit', () => {
editor.parser.addNodeFilter('pre', elms => {
for (const el of elms) {
const wrapper = window.tinymce.html.Node.create('code-block', {
contenteditable: 'false',
});
const childCodeBlock = el.children().filter(child => child.name === 'code')[0] || null;
const direction = el.attr('dir') || (childCodeBlock && childCodeBlock.attr('dir')) || '';
if (direction) {
wrapper.attr('dir', direction);
}
const spans = el.getAll('span');
for (const span of spans) {
span.unwrap();
}
el.attr('style', null);
el.wrap(wrapper);
}
});
editor.parser.addNodeFilter('code-block', elms => {
for (const el of elms) {
el.attr('contenteditable', 'false');
}
});
editor.serializer.addNodeFilter('code-block', elms => {
for (const el of elms) {
const direction = el.attr('dir');
if (direction && el.firstChild) {
el.firstChild.attr('dir', direction);
} else if (el.firstChild) {
el.firstChild.attr('dir', null);
}
el.unwrap();
}
});
});
editor.ui.registry.addContextToolbar('codeeditor', {
predicate(node) {
return node.nodeName.toLowerCase() === 'code-block';
},
items: 'editcodeeditor',
position: 'node',
scope: 'node',
});
editor.on('PreInit', () => {
defineCodeBlockCustomElement(editor);
});
}
/**
* @return {register}
*/
export function getPlugin() {
return register;
}