import tinycolor from 'tinycolor2'; import {basename, extname, isObject, isDarkTheme} from '../utils.js'; import {onInputDebounce} from '../utils/dom.js'; const languagesByFilename = {}; const languagesByExt = {}; const baseOptions = { fontFamily: 'var(--fonts-monospace)', fontSize: 14, // https://github.com/microsoft/monaco-editor/issues/2242 guides: {bracketPairs: false, indentation: false}, links: false, minimap: {enabled: false}, occurrencesHighlight: false, overviewRulerLanes: 0, renderLineHighlight: 'all', renderLineHighlightOnlyWhenFocus: true, rulers: false, scrollbar: {horizontalScrollbarSize: 6, verticalScrollbarSize: 6}, scrollBeyondLastLine: false, automaticLayout: true, }; function getEditorconfig(input) { try { return JSON.parse(input.getAttribute('data-editorconfig')); } catch { return null; } } function initLanguages(monaco) { for (const {filenames, extensions, id} of monaco.languages.getLanguages()) { for (const filename of filenames || []) { languagesByFilename[filename] = id; } for (const extension of extensions || []) { languagesByExt[extension] = id; } } } function getLanguage(filename) { return languagesByFilename[filename] || languagesByExt[extname(filename)] || 'plaintext'; } function updateEditor(monaco, editor, filename, lineWrapExts) { editor.updateOptions(getFileBasedOptions(filename, lineWrapExts)); const model = editor.getModel(); const language = model.getLanguageId(); const newLanguage = getLanguage(filename); if (language !== newLanguage) monaco.editor.setModelLanguage(model, newLanguage); } // export editor for customization - https://github.com/go-gitea/gitea/issues/10409 function exportEditor(editor) { if (!window.codeEditors) window.codeEditors = []; if (!window.codeEditors.includes(editor)) window.codeEditors.push(editor); } export async function createMonaco(textarea, filename, editorOpts) { const monaco = await import(/* webpackChunkName: "monaco" */'monaco-editor'); initLanguages(monaco); let {language, eol, ...other} = editorOpts; if (!language) language = getLanguage(filename); const container = document.createElement('div'); container.className = 'monaco-editor-container'; textarea.parentNode.append(container); // https://github.com/microsoft/monaco-editor/issues/2427 // also, monaco can only parse 6-digit hex colors, so we convert the colors to that format const styles = window.getComputedStyle(document.documentElement); const getColor = (name) => tinycolor(styles.getPropertyValue(name).trim()).toString('hex6'); monaco.editor.defineTheme('gitea', { base: isDarkTheme() ? 'vs-dark' : 'vs', inherit: true, rules: [ { background: getColor('--color-code-bg'), } ], colors: { 'editor.background': getColor('--color-code-bg'), 'editor.foreground': getColor('--color-text'), 'editor.inactiveSelectionBackground': getColor('--color-primary-light-4'), 'editor.lineHighlightBackground': getColor('--color-editor-line-highlight'), 'editor.selectionBackground': getColor('--color-primary-light-3'), 'editor.selectionForeground': getColor('--color-primary-light-3'), 'editorLineNumber.background': getColor('--color-code-bg'), 'editorLineNumber.foreground': getColor('--color-secondary-dark-6'), 'editorWidget.background': getColor('--color-body'), 'editorWidget.border': getColor('--color-secondary'), 'input.background': getColor('--color-input-background'), 'input.border': getColor('--color-input-border'), 'input.foreground': getColor('--color-input-text'), 'scrollbar.shadow': getColor('--color-shadow'), 'progressBar.background': getColor('--color-primary'), } }); // Quick fix: https://github.com/microsoft/monaco-editor/issues/2962 monaco.languages.register({id: 'vs.editor.nullLanguage'}); monaco.languages.setLanguageConfiguration('vs.editor.nullLanguage', {}); // We encode the initial value in JSON on the backend to prevent browsers from // discarding the \r during HTML parsing: // https://html.spec.whatwg.org/multipage/parsing.html#preprocessing-the-input-stream const value = JSON.parse(textarea.getAttribute('data-initial-value') || '""'); textarea.value = value; textarea.removeAttribute('data-initial-value'); const editor = monaco.editor.create(container, { value, theme: 'gitea', language, ...other, }); const model = editor.getModel(); // Monaco performs auto-detection of dominant EOL in the file, biased towards LF for // empty files. If there is an editorconfig value, override this detected value. if (eol in monaco.editor.EndOfLineSequence) { model.setEOL(monaco.editor.EndOfLineSequence[eol]); } model.onDidChangeContent(() => { textarea.value = editor.getValue(); textarea.dispatchEvent(new Event('change')); // seems to be needed for jquery-are-you-sure }); exportEditor(editor); const loading = document.querySelector('.editor-loading'); if (loading) loading.remove(); return {monaco, editor}; } function getFileBasedOptions(filename, lineWrapExts) { return { wordWrap: (lineWrapExts || []).includes(extname(filename)) ? 'on' : 'off', }; } function togglePreviewDisplay(previewable) { const previewTab = document.querySelector('a[data-tab="preview"]'); if (!previewTab) return; if (previewable) { const newUrl = (previewTab.getAttribute('data-url') || '').replace(/(.*)\/.*/, `$1/markup`); previewTab.setAttribute('data-url', newUrl); previewTab.style.display = ''; } else { previewTab.style.display = 'none'; // If the "preview" tab was active, user changes the filename to a non-previewable one, // then the "preview" tab becomes inactive (hidden), so the "write" tab should become active if (previewTab.classList.contains('active')) { const writeTab = document.querySelector('a[data-tab="write"]'); writeTab.click(); } } } export async function createCodeEditor(textarea, filenameInput) { const filename = basename(filenameInput.value); const previewableExts = new Set((textarea.getAttribute('data-previewable-extensions') || '').split(',')); const lineWrapExts = (textarea.getAttribute('data-line-wrap-extensions') || '').split(','); const previewable = previewableExts.has(extname(filename)); const editorConfig = getEditorconfig(filenameInput); togglePreviewDisplay(previewable); const {monaco, editor} = await createMonaco(textarea, filename, { ...baseOptions, ...getFileBasedOptions(filenameInput.value, lineWrapExts), ...getEditorConfigOptions(editorConfig), }); filenameInput.addEventListener('input', onInputDebounce(() => { const filename = filenameInput.value; const previewable = previewableExts.has(extname(filename)); togglePreviewDisplay(previewable); updateEditor(monaco, editor, filename, lineWrapExts); })); return editor; } function getEditorConfigOptions(ec) { if (!isObject(ec)) return {}; const opts = {}; opts.detectIndentation = !('indent_style' in ec) || !('indent_size' in ec); if ('indent_size' in ec) opts.indentSize = Number(ec.indent_size); if ('tab_width' in ec) opts.tabSize = Number(ec.tab_width) || opts.indentSize; if ('max_line_length' in ec) opts.rulers = [Number(ec.max_line_length)]; opts.trimAutoWhitespace = ec.trim_trailing_whitespace === true; opts.insertSpaces = ec.indent_style === 'space'; opts.useTabStops = ec.indent_style === 'tab'; opts.eol = ec.end_of_line?.toUpperCase(); return opts; }