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// Full-page editor for code files.
import Editor, { type Monaco } from "@monaco-editor/react";
import type { editor } from "monaco-editor";
import { useEffect, useRef } from "react";
import { Link, useParams } from "react-router";
import { WebsocketProvider } from "y-websocket";
import * as Y from "yjs";
// @ts-ignore
import Atom from "~icons/tabler/atom.jsx";
// @ts-ignore
import Backspace from "~icons/tabler/backspace.jsx";
// @ts-ignore
import Close from "~icons/tabler/x.jsx";
import favicon from "./assets/favicon.ico";
import theme from "./code-theme.ts";
export default function Code() {
const { path } = useParams();
const parentDir = path!.split("/").slice(0, -1).join("/");
const yDocRef = useRef<any>();
const wsProviderRef = useRef<any>();
const monacoBindingRef = useRef<any>();
const yMonacoRef = useRef<any>();
const yMonacoLoadingRef = useRef(false);
const editorRef = useRef<any>();
useEffect(() => {
const loadMonaco = async () => {
if (yMonacoLoadingRef.current) return;
yMonacoLoadingRef.current = true;
// y-monaco is gigantic. The other Monaco packages are small.
yMonacoRef.current = await import("y-monaco");
initCRDT();
};
loadMonaco();
}, []);
function beforeMount(monaco: Monaco) {
monaco.editor.defineTheme("lynxkite", theme);
}
function onMount(_editor: editor.IStandaloneCodeEditor, monaco: Monaco) {
// Do nothing on Ctrl+S. We save after every keypress anyway.
_editor.addCommand(monaco.KeyMod.CtrlCmd | monaco.KeyCode.KeyS, () => {});
editorRef.current = _editor;
initCRDT();
}
function initCRDT() {
if (!yMonacoRef.current || !editorRef.current) return;
if (yDocRef.current) return;
yDocRef.current = new Y.Doc();
const text = yDocRef.current.getText("text");
const proto = location.protocol === "https:" ? "wss:" : "ws:";
wsProviderRef.current = new WebsocketProvider(
`${proto}//${location.host}/ws/code/crdt`,
path!,
yDocRef.current,
);
monacoBindingRef.current = new yMonacoRef.current.MonacoBinding(
text,
editorRef.current.getModel()!,
new Set([editorRef.current]),
wsProviderRef.current.awareness,
);
}
useEffect(() => {
return () => {
yDocRef.current?.destroy();
wsProviderRef.current?.destroy();
monacoBindingRef.current?.destroy();
};
});
return (
<div className="workspace">
<div className="top-bar bg-neutral">
<Link className="logo" to="">
<img alt="" src={favicon} />
</Link>
<div className="ws-name">{path}</div>
<div className="tools text-secondary">
<button className="btn btn-link">
<Atom />
</button>
<button className="btn btn-link">
<Backspace />
</button>
<Link to={`/dir/${parentDir}`} className="btn btn-link">
<Close />
</Link>
</div>
</div>
<Editor
defaultLanguage="python"
theme="lynxkite"
path={path}
beforeMount={beforeMount}
onMount={onMount}
loading={null}
options={{
cursorStyle: "block",
cursorBlinking: "solid",
minimap: { enabled: false },
renderLineHighlight: "none",
}}
/>
</div>
);
}
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