mirror of
https://github.com/BookStackApp/BookStack.git
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291 lines
7.7 KiB
JavaScript
291 lines
7.7 KiB
JavaScript
import CodeMirror from "codemirror";
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import Clipboard from "clipboard/dist/clipboard.min";
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// Modes
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import 'codemirror/mode/css/css';
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import 'codemirror/mode/clike/clike';
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import 'codemirror/mode/diff/diff';
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import 'codemirror/mode/go/go';
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import 'codemirror/mode/htmlmixed/htmlmixed';
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import 'codemirror/mode/javascript/javascript';
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import 'codemirror/mode/julia/julia';
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import 'codemirror/mode/lua/lua';
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import 'codemirror/mode/haskell/haskell';
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import 'codemirror/mode/markdown/markdown';
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import 'codemirror/mode/mllike/mllike';
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import 'codemirror/mode/nginx/nginx';
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import 'codemirror/mode/php/php';
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import 'codemirror/mode/powershell/powershell';
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import 'codemirror/mode/properties/properties';
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import 'codemirror/mode/python/python';
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import 'codemirror/mode/ruby/ruby';
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import 'codemirror/mode/rust/rust';
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import 'codemirror/mode/shell/shell';
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import 'codemirror/mode/sql/sql';
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import 'codemirror/mode/toml/toml';
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import 'codemirror/mode/xml/xml';
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import 'codemirror/mode/yaml/yaml';
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// Addons
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import 'codemirror/addon/scroll/scrollpastend';
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// Mapping of potential languages or formats from user input
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// to their proper codemirror modes.
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const modeMap = {
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css: 'css',
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c: 'text/x-csrc',
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java: 'text/x-java',
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scala: 'text/x-scala',
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kotlin: 'text/x-kotlin',
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'c++': 'text/x-c++src',
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'c#': 'text/x-csharp',
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csharp: 'text/x-csharp',
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diff: 'diff',
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go: 'go',
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haskell: 'haskell',
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hs: 'haskell',
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html: 'htmlmixed',
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ini: 'properties',
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javascript: 'javascript',
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json: {name: 'javascript', json: true},
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js: 'javascript',
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jl: 'julia',
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julia: 'julia',
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lua: 'lua',
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md: 'markdown',
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mdown: 'markdown',
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markdown: 'markdown',
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ml: 'mllike',
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nginx: 'nginx',
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powershell: 'powershell',
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properties: 'properties',
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ocaml: 'mllike',
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php: 'php',
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py: 'python',
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python: 'python',
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ruby: 'ruby',
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rust: 'rust',
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rb: 'ruby',
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rs: 'rust',
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shell: 'shell',
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sh: 'shell',
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bash: 'shell',
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toml: 'toml',
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sql: 'text/x-sql',
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xml: 'xml',
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yaml: 'yaml',
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yml: 'yaml',
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};
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/**
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* Highlight pre elements on a page
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*/
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function highlight() {
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let codeBlocks = document.querySelectorAll('.page-content pre, .comment-box .content pre');
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for (let i = 0; i < codeBlocks.length; i++) {
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highlightElem(codeBlocks[i]);
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}
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}
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/**
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* Add code highlighting to a single element.
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* @param {HTMLElement} elem
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*/
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function highlightElem(elem) {
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let innerCodeElem = elem.querySelector('code[class^=language-]');
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let mode = '';
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if (innerCodeElem !== null) {
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let langName = innerCodeElem.className.replace('language-', '');
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mode = getMode(langName);
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}
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elem.innerHTML = elem.innerHTML.replace(/<br\s*[\/]?>/gi ,'\n');
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let content = elem.textContent.trim();
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let cm = CodeMirror(function(elt) {
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elem.parentNode.replaceChild(elt, elem);
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}, {
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value: content,
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mode: mode,
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lineNumbers: true,
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lineWrapping: false,
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theme: getTheme(),
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readOnly: true
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});
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addCopyIcon(cm);
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}
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/**
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* Add a button to a CodeMirror instance which copies the contents to the clipboard upon click.
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* @param cmInstance
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*/
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function addCopyIcon(cmInstance) {
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const copyIcon = `<svg viewBox="0 0 24 24" width="16" height="16" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h24v24H0z" fill="none"/><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z"/></svg>`;
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const copyButton = document.createElement('div');
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copyButton.classList.add('CodeMirror-copy');
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copyButton.innerHTML = copyIcon;
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cmInstance.display.wrapper.appendChild(copyButton);
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const clipboard = new Clipboard(copyButton, {
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text: function(trigger) {
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return cmInstance.getValue()
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}
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});
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clipboard.on('success', event => {
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copyButton.classList.add('success');
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setTimeout(() => {
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copyButton.classList.remove('success');
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}, 240);
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});
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}
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/**
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* Search for a codemirror code based off a user suggestion
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* @param suggestion
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* @returns {string}
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*/
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function getMode(suggestion) {
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suggestion = suggestion.trim().replace(/^\./g, '').toLowerCase();
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return (typeof modeMap[suggestion] !== 'undefined') ? modeMap[suggestion] : '';
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}
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/**
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* Ge the theme to use for CodeMirror instances.
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* @returns {*|string}
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*/
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function getTheme() {
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return window.codeTheme || 'base16-light';
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}
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/**
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* Create a CodeMirror instance for showing inside the WYSIWYG editor.
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* Manages a textarea element to hold code content.
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* @param {HTMLElement} elem
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* @returns {{wrap: Element, editor: *}}
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*/
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function wysiwygView(elem) {
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let doc = elem.ownerDocument;
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let codeElem = elem.querySelector('code');
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let lang = (elem.className || '').replace('language-', '');
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if (lang === '' && codeElem) {
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lang = (codeElem.className || '').replace('language-', '')
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}
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elem.innerHTML = elem.innerHTML.replace(/<br\s*[\/]?>/gi ,'\n');
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let content = elem.textContent;
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let newWrap = doc.createElement('div');
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let newTextArea = doc.createElement('textarea');
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newWrap.className = 'CodeMirrorContainer';
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newWrap.setAttribute('data-lang', lang);
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newWrap.setAttribute('dir', 'ltr');
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newTextArea.style.display = 'none';
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elem.parentNode.replaceChild(newWrap, elem);
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newWrap.appendChild(newTextArea);
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newWrap.contentEditable = false;
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newTextArea.textContent = content;
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let cm = CodeMirror(function(elt) {
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newWrap.appendChild(elt);
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}, {
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value: content,
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mode: getMode(lang),
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lineNumbers: true,
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lineWrapping: false,
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theme: getTheme(),
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readOnly: true
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});
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setTimeout(() => {
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cm.refresh();
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}, 300);
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return {wrap: newWrap, editor: cm};
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}
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/**
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* Create a CodeMirror instance to show in the WYSIWYG pop-up editor
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* @param {HTMLElement} elem
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* @param {String} modeSuggestion
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* @returns {*}
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*/
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function popupEditor(elem, modeSuggestion) {
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let content = elem.textContent;
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return CodeMirror(function(elt) {
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elem.parentNode.insertBefore(elt, elem);
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elem.style.display = 'none';
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}, {
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value: content,
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mode: getMode(modeSuggestion),
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lineNumbers: true,
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lineWrapping: false,
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theme: getTheme()
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});
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}
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/**
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* Set the mode of a codemirror instance.
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* @param cmInstance
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* @param modeSuggestion
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*/
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function setMode(cmInstance, modeSuggestion) {
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cmInstance.setOption('mode', getMode(modeSuggestion));
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}
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/**
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* Set the content of a cm instance.
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* @param cmInstance
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* @param codeContent
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*/
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function setContent(cmInstance, codeContent) {
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cmInstance.setValue(codeContent);
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setTimeout(() => {
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cmInstance.refresh();
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}, 10);
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}
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/**
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* Get a CodeMirror instance to use for the markdown editor.
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* @param {HTMLElement} elem
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* @returns {*}
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*/
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function markdownEditor(elem) {
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const content = elem.textContent;
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const config = {
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value: content,
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mode: "markdown",
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lineNumbers: true,
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lineWrapping: true,
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theme: getTheme(),
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scrollPastEnd: true,
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};
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window.$events.emitPublic(elem, 'editor-markdown-cm::pre-init', {config});
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return CodeMirror(function (elt) {
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elem.parentNode.insertBefore(elt, elem);
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elem.style.display = 'none';
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}, config);
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}
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/**
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* Get the 'meta' key dependant on the user's system.
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* @returns {string}
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*/
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function getMetaKey() {
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let mac = CodeMirror.keyMap["default"] == CodeMirror.keyMap.macDefault;
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return mac ? "Cmd" : "Ctrl";
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}
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export default {
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highlight: highlight,
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wysiwygView: wysiwygView,
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popupEditor: popupEditor,
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setMode: setMode,
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setContent: setContent,
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markdownEditor: markdownEditor,
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getMetaKey: getMetaKey,
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};
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