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import { editor as monacoEditor, languages as monacoLanguages, Uri } from 'monaco-editor';
import { DEFAULT_THEME, themes } from '~/ide/lib/themes';
import languages from '~/ide/lib/languages';
import { defaultEditorOptions } from '~/ide/lib/editor_options';
import { registerLanguages } from '~/ide/utils';
import { joinPaths } from '~/lib/utils/url_utility';
import { clearDomElement } from './utils';
import { EDITOR_LITE_INSTANCE_ERROR_NO_EL, URI_PREFIX } from './constants';
export default class Editor {
constructor(options = {}) {
this.instances = [];
this.options = {
extraEditorClassName: 'gl-editor-lite',
...defaultEditorOptions,
...options,
};
Editor.setupMonacoTheme();
registerLanguages(...languages);
}
static setupMonacoTheme() {
const themeName = window.gon?.user_color_scheme || DEFAULT_THEME;
const theme = themes.find(t => t.name === themeName);
if (theme) monacoEditor.defineTheme(themeName, theme.data);
monacoEditor.setTheme(theme ? themeName : DEFAULT_THEME);
}
static updateModelLanguage(path, instance) {
if (!instance) return;
const model = instance.getModel();
const ext = `.${path.split('.').pop()}`;
const language = monacoLanguages
.getLanguages()
.find(lang => lang.extensions.indexOf(ext) !== -1);
const id = language ? language.id : 'plaintext';
monacoEditor.setModelLanguage(model, id);
}
/**
* Creates a monaco instance with the given options.
*
* @param {Object} options Options used to initialize monaco.
* @param {Element} options.el The element which will be used to create the monacoEditor.
* @param {string} options.blobPath The path used as the URI of the model. Monaco uses the extension of this path to determine the language.
* @param {string} options.blobContent The content to initialize the monacoEditor.
* @param {string} options.blobGlobalId This is used to help globally identify monaco instances that are created with the same blobPath.
*/
createInstance({
el = undefined,
blobPath = '',
blobContent = '',
blobGlobalId = '',
...instanceOptions
} = {}) {
if (!el) {
throw new Error(EDITOR_LITE_INSTANCE_ERROR_NO_EL);
}
clearDomElement(el);
const uriFilePath = joinPaths(URI_PREFIX, blobGlobalId, blobPath);
const model = monacoEditor.createModel(blobContent, undefined, Uri.file(uriFilePath));
monacoEditor.onDidCreateEditor(() => {
delete el.dataset.editorLoading;
});
const instance = monacoEditor.create(el, {
...this.options,
...instanceOptions,
});
instance.setModel(model);
instance.onDidDispose(() => {
const index = this.instances.findIndex(inst => inst === instance);
this.instances.splice(index, 1);
model.dispose();
});
instance.updateModelLanguage = path => Editor.updateModelLanguage(path, instance);
this.instances.push(instance);
return instance;
}
dispose() {
this.instances.forEach(instance => instance.dispose());
}
use(exts = [], instance = null) {
const extensions = Array.isArray(exts) ? exts : [exts];
if (instance) {
Object.assign(instance, ...extensions);
} else {
this.instances.forEach(inst => Object.assign(inst, ...extensions));
}
}
}
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