Add support for running extensions in the browser

src/common/nodeProxy.ts

@@ -0,0 +1,47 @@
+import { Event } from "vs/base/common/event";
+import { IChannel, IServerChannel } from "vs/base/parts/ipc/common/ipc";
+import { createDecorator } from "vs/platform/instantiation/common/instantiation";
+import { ReadWriteConnection } from "vs/server/node_modules/@coder/node-browser/out/common/connection";
+
+export const INodeProxyService = createDecorator<INodeProxyService>("nodeProxyService");
+
+export interface INodeProxyService extends ReadWriteConnection {
+	_serviceBrand: any;
+	send(message: string): void;
+	onMessage: Event<string>;
+	onUp: Event<void>;
+	onClose: Event<void>;
+	onDown: Event<void>;
+}
+
+export class NodeProxyChannel implements IServerChannel {
+	constructor(private service: INodeProxyService) {}
+
+	listen(_: unknown, event: string): Event<any> {
+		switch (event) {
+			case "onMessage": return this.service.onMessage;
+		}
+		throw new Error(`Invalid listen ${event}`);
+	}
+
+	async call(_: unknown, command: string, args?: any): Promise<any> {
+		switch (command) {
+			case "send": return this.service.send(args[0]);
+		}
+		throw new Error(`Invalid call ${command}`);
+	}
+}
+
+export class NodeProxyChannelClient {
+	_serviceBrand: any;
+
+	public readonly onMessage: Event<string>;
+
+	constructor(private readonly channel: IChannel) {
+		this.onMessage = this.channel.listen<string>("onMessage");
+	}
+
+	public send(data: string): void {
+		this.channel.call("send", [data]);
+	}
+}