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68 lines
2.3 KiB
JavaScript
68 lines
2.3 KiB
JavaScript
import * as monaco from "monaco-editor/esm/vs/editor/editor.api";
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import ElixirOnTypeFormattingEditProvider from "./elixir/on_type_formatting_edit_provider";
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import theme from "./theme";
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monaco.languages.registerOnTypeFormattingEditProvider(
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"elixir",
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ElixirOnTypeFormattingEditProvider
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);
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// Define custom theme
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monaco.editor.defineTheme("custom", theme);
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// See https://github.com/microsoft/monaco-editor/issues/648#issuecomment-564978560
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// Without this selecting text with whitespace shrinks the whitespace.
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document.fonts.addEventListener("loadingdone", (event) => {
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const jetBrainsMonoLoaded = event.fontfaces.some(
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// font-family may be either "JetBrains Mono" or "\"JetBrains Mono\""
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(fontFace) => fontFace.family.includes("JetBrains Mono")
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);
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if (jetBrainsMonoLoaded) {
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// We use JetBrains Mono in all instances of the editor,
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// so we wait until it loads and then tell Monaco to remeasure
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// fonts and updates its cache.
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monaco.editor.remeasureFonts();
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}
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});
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// Define custom completion provider.
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// In our case the completion behaviour is cell-dependent,
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// so we delegate the implementation to the appropriate cell.
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// See cell/live_editor.js for more details.
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monaco.languages.registerCompletionItemProvider("elixir", {
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provideCompletionItems: (model, position) => {
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if (model.__getCompletionItems) {
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return model.__getCompletionItems(model, position);
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} else {
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return [];
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}
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},
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});
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// Define custom code formatting provider.
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// Formatting is cell agnostic, but we still delegate
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// to a cell specific implementation to communicate with LV.
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monaco.languages.registerDocumentFormattingEditProvider("elixir", {
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provideDocumentFormattingEdits: function (model, options, token) {
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if (model.__getDocumentFormattingEdits) {
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return model.__getDocumentFormattingEdits(model);
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} else {
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return [];
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}
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},
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});
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export default monaco;
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/**
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* Highlights the given code using the same rules as in the editor.
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*
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* Returns a promise resolving to HTML that renders as the highlighted code.
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*/
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export function highlight(code, language) {
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return monaco.editor.colorize(code, language).then((result) => {
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// `colorize` always adds additional newline, so we remove it
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return result.replace(/<br\/>$/, "");
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});
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}
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