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import {basename, extname, isObject, isDarkTheme} from '../utils.js';
import {debounce} from 'throttle-debounce';
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,
renderWhitespace: 'none',
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, ...other} = editorOpts;
if (!language) language = getLanguage(filename);
const container = document.createElement('div');
container.className = 'monaco-editor-container';
textarea.parentNode.appendChild(container);
// https://github.com/microsoft/monaco-editor/issues/2427
const styles = window.getComputedStyle(document.documentElement);
const getProp = (name) => styles.getPropertyValue(name).trim();
monaco.editor.defineTheme('gitea', {
base: isDarkTheme() ? 'vs-dark' : 'vs',
inherit: true,
rules: [
{
background: getProp('--color-code-bg'),
}
],
colors: {
'editor.background': getProp('--color-code-bg'),
'editor.foreground': getProp('--color-text'),
'editor.inactiveSelectionBackground': getProp('--color-primary-light-4'),
'editor.lineHighlightBackground': getProp('--color-editor-line-highlight'),
'editor.selectionBackground': getProp('--color-primary-light-3'),
'editor.selectionForeground': getProp('--color-primary-light-3'),
'editorLineNumber.background': getProp('--color-code-bg'),
'editorLineNumber.foreground': getProp('--color-secondary-dark-6'),
'editorWidget.background': getProp('--color-body'),
'editorWidget.border': getProp('--color-secondary'),
'input.background': getProp('--color-input-background'),
'input.border': getProp('--color-input-border'),
'input.foreground': getProp('--color-input-text'),
'scrollbar.shadow': getProp('--color-shadow'),
'progressBar.background': getProp('--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', {});
const editor = monaco.editor.create(container, {
value: textarea.value,
theme: 'gitea',
language,
...other,
});
const model = editor.getModel();
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', debounce(500, () => {
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';
return opts;
}
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