The GDScript LSP Client is works correctly !

src/extension.ts

@@ -1,16 +1,17 @@
 import { ExtensionContext } from "vscode";
-import GDScriptLanguageClient from "./lsp/GDScriptLanguageClient";
+import { GodotTools } from "./godot-tools";
 
-let client: GDScriptLanguageClient = null;
+
+let tools: GodotTools = null;
 
 export function activate(context: ExtensionContext) {
-	client = new GDScriptLanguageClient();
-	context.subscriptions.push(client.start());
+	tools = new GodotTools(context);
+	tools.activate();
 }
 
 export function deactivate(): Thenable<void> {
-	if (client) {
-		return client.stop();
-	}
-	return new Promise((resolve, reject) => {});
+	return new Promise((resolve, reject) => {
+		tools.deactivate();
+		resolve();
+	});
 }

src/godot-tools.ts

@@ -0,0 +1,209 @@
+import * as vscode from "vscode";
+import * as path from 'path';
+import * as fs from 'fs';
+import GDScriptLanguageClient from "./lsp/GDScriptLanguageClient";
+import { get_configuration, set_configuration } from "./utils";
+import { MessageIO } from "./lsp/MessageIO";
+
+const CONFIG_CONTAINER = "godot_tools";
+const TOOL_NAME = "GodotTools";
+
+enum ClientStatus {
+	PENDING,
+	DISCONNECTED,
+	CONNECTED,
+}
+
+export class GodotTools {
+
+	private context: vscode.ExtensionContext;
+	private client: GDScriptLanguageClient = null;
+	private workspace_dir = vscode.workspace.rootPath;
+	private project_file = "project.godot";
+	private connection_status: vscode.StatusBarItem = null;
+	private message_handler: MessageHandler = null;
+
+	constructor(p_context: vscode.ExtensionContext) {
+		this.context = p_context;
+		this.client = new GDScriptLanguageClient();
+		this.message_handler = new MessageHandler(this.client.io);
+		this.client.io.on('disconnected', this.on_client_disconnected.bind(this));
+		this.client.io.on('connected', this.on_server_connected.bind(this));
+		this.connection_status = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Right);
+	}
+	
+	public activate() {
+		vscode.commands.registerCommand("godot-tool.open_editor", ()=>{
+			this.open_workspace_with_editor("-e").catch(err=>vscode.window.showErrorMessage(err));
+		});
+		vscode.commands.registerCommand("godot-tool.run_project", ()=>{
+			this.open_workspace_with_editor().catch(err=>vscode.window.showErrorMessage(err));
+		});
+		this.connection_status.text = "starting";
+		this.connection_status.show();
+		this.try_connect_to_server();
+	}
+	
+	
+	
+	public deactivate() {
+		this.client.stop();
+	}
+	
+
+	private open_workspace_with_editor(params = "") {
+		
+		return new Promise((resolve, reject) => {
+			let valid = false
+			if (this.workspace_dir) {
+				let cfg = path.join(this.workspace_dir, this.project_file);
+				valid = (fs.existsSync(cfg) && fs.statSync(cfg).isFile());
+			}
+			if (valid) {
+				this.run_editor(`--path "${this.workspace_dir}" ${params}`).then(()=>resolve()).catch(err=>{
+					reject(err);
+				});
+			} else {
+				reject("Current workspace is not a Godot project");
+			}
+		});
+	}
+
+	private run_editor(params = "") {
+		
+		return new Promise((resolve, reject) => {
+			const run_godot = (path: string, params: string) => {
+				const escape_command = (cmd: string) => {
+					let cmdEsc = `"${cmd}"`;
+					let shell = vscode.workspace.getConfiguration("terminal.integrated.shell").get("windows", "");
+					if (shell.endsWith("powershell.exe") && process.platform === "win32") {
+						cmdEsc = `&${cmdEsc}`;
+					}
+					return cmdEsc;
+				};
+				let existingTerminal = vscode.window.terminals.find(t => t.name === TOOL_NAME)
+				if (existingTerminal) {
+					existingTerminal.dispose()
+				}
+				let terminal = vscode.window.createTerminal(TOOL_NAME);
+				let editorPath = escape_command(path);
+				let cmmand = `${editorPath} ${params}`;
+				terminal.sendText(cmmand, true);
+				terminal.show();
+				resolve();
+			};
+			
+			let editorPath = get_configuration("editor_path", "")
+			editorPath = editorPath.replace("${workspaceRoot}", this.workspace_dir);
+			if (!fs.existsSync(editorPath) || !fs.statSync(editorPath).isFile()) {
+				vscode.window.showOpenDialog({
+						openLabel: "Run",
+						filters: process.platform === "win32" ? {"Godot Editor Binary": ["exe", "EXE"]} : undefined
+					}).then((uris: vscode.Uri[])=> {
+						if (!uris) return;
+						let path = uris[0].fsPath;
+						if (!fs.existsSync(path) || !fs.statSync(path).isFile()) {
+							reject("Invalid editor path to run the project");
+						} else {
+							run_godot(path, params);
+							set_configuration("editor_path", path);
+						}
+				});
+			} else {
+				run_godot(editorPath, params);
+			}
+		});
+	}
+	
+	private try_connect_to_server() {
+		this.client.connect_to_server();
+		this.update_client_status(ClientStatus.PENDING);
+	}
+	
+	private update_client_status(status: ClientStatus) {
+		this.connection_status.color = vscode.ThemeColor;
+		switch (status) {
+			case ClientStatus.PENDING:
+				this.connection_status.text = `$(sync) Connecting`;
+				this.connection_status.tooltip = `Connecting to GDScript Language Server`;
+				break;
+			case ClientStatus.CONNECTED:
+				this.connection_status.text = `$(check) Connected`;
+				this.connection_status.tooltip = `Connected to GDScript Language Server`;
+				break;
+			case ClientStatus.DISCONNECTED:
+				this.connection_status.text = `$(x) Disconnected`;
+				this.connection_status.tooltip = `Disconnect to GDScript Language Server`;
+				break;
+			default:
+				break;
+		}
+	}
+	
+	private on_server_connected() {
+		this.context.subscriptions.push(this.client.start());
+		this.update_client_status(ClientStatus.CONNECTED);
+	}
+	
+	private on_client_disconnected() {
+		this.update_client_status(ClientStatus.DISCONNECTED);
+		vscode.window.showErrorMessage(`Failed connect to GDScript Language Server`, 'Open Godot Editor', 'Retry', 'Ignore').then(item=>{
+			if (item == 'Retry') {
+				this.try_connect_to_server();
+			} else if (item == 'Open Godot Editor') {
+				this.update_client_status(ClientStatus.PENDING);
+				this.open_workspace_with_editor("-e").then(()=>{
+					setTimeout(()=>{
+						this.try_connect_to_server();
+					}, 10 * 1000);
+				});
+			}
+		});
+	}
+	
+	
+	
+};
+
+const CUSTOM_MESSAGE = "gdscrip_client/";
+
+class MessageHandler {
+	io: MessageIO = null;
+	
+	constructor(io: MessageIO) {
+		this.io = io;
+		this.io.on('message', this.on_server_message.bind(this));
+	}
+	
+	changeWorkspace(params: {path: string}) {
+		vscode.window.showErrorMessage("The GDScript Language Server can't work properly!\nThe opening workspace is diffrent with the editor's.", 'Reload', 'Ignore').then(item=>{
+			if (item == "Reload") {
+				let folderUrl = vscode.Uri.file(params.path);
+				vscode.commands.executeCommand('vscode.openFolder', folderUrl, false);
+			}
+		});
+	}
+	
+	private on_server_message(message: any) {
+		if (message && message.method && (message.method as string).startsWith(CUSTOM_MESSAGE)) {
+			const method = (message.method as string).substring(CUSTOM_MESSAGE.length, message.method.length);
+			if (this[method]) {
+				let ret = this[method](message.params);
+				if (ret) {
+					ret = this.handle_result(message, ret);
+					if (ret) {
+						this.io.send_message(ret);
+					}
+				}
+			}
+		}
+	}
+	
+	private handle_result(request: any, ret: any) {
+		let data = ret;
+		if (ret) {
+			data = JSON.stringify(data);
+		}
+		return data
+	}
+}

src/lsp/GDScriptLanguageClient.ts

@@ -1,10 +1,7 @@
 import { workspace } from "vscode";
 import { LanguageClient, LanguageClientOptions, ServerOptions } from "vscode-languageclient";
 import { is_debug_mode, get_configuration } from "../utils";
-import logger from "../loggger";
-import * as WebSocket  from 'ws';
 import * as vscode  from 'vscode';
-import { EventEmitter } from "events";
 import { MessageIO, MessageIOReader, MessageIOWriter } from "./MessageIO";
 
 function getClientOptions(): LanguageClientOptions {
@@ -16,7 +13,7 @@ function getClientOptions(): LanguageClientOptions {
 		],
 		synchronize: {
 			// Notify the server about file changes to '.gd files contain in the workspace
-			fileEvents: workspace.createFileSystemWatcher("**/*.gd"),
+			// fileEvents: workspace.createFileSystemWatcher("**/*.gd"),
 		},
 	};
 }
@@ -29,23 +26,19 @@ function get_server_uri() : string {
 const io = new MessageIO(get_server_uri());
 const serverOptions: ServerOptions = () => {
 	return new Promise((resolve, reject) => {
-		io.connect_to_language_server().then(()=>{
-			resolve({reader: new MessageIOReader(io), writer: new MessageIOWriter(io)});
-		});
+		resolve({reader: new MessageIOReader(io), writer: new MessageIOWriter(io)});
 	});
 };
 
-export default class GDScriptLanguageClient extends LanguageClient {	
+export default class GDScriptLanguageClient extends LanguageClient {
+	
+	public io: MessageIO = io;
+	
 	constructor() {
 		super(`GDScriptLanguageClient`, serverOptions, getClientOptions());
-		io.on('disconnected', this.on_disconnected.bind(this));
 	}
 	
-	private on_disconnected() {
-		vscode.window.showErrorMessage(`Failed connect to GDScript Language Server`, 'Retry', 'Close').then(item=>{
-			if (item == 'Retry') {
-				io.connect_to_language_server();
-			}
-		});
+	connect_to_server() {
+		io.connect_to_language_server();
 	}
 };

src/lsp/MessageIO.ts

@@ -5,6 +5,7 @@ import MessageBuffer from "./MessageBuffer";
 import logger from "../loggger";
 import { AbstractMessageWriter, MessageWriter } from "vscode-jsonrpc/lib/messageWriter";
 import { Message } from "vscode-jsonrpc";
+import { is_debug_mode } from "../utils";
 
 export class MessageIO extends EventEmitter {
 	
@@ -20,13 +21,17 @@ export class MessageIO extends EventEmitter {
 		if (this.socket) {
 			this.socket.send(message);
 		}
-		logger.log("[client]", message);
+		if (is_debug_mode) logger.log("[client]", message);
 	}
 	
 	protected on_message(chunk: WebSocket.Data) {
 		let message = chunk.toString();
 		this.emit('data', message);
-		logger.log("[server]", message);
+		if (is_debug_mode) logger.log("[server]", message);
+	}
+	
+	on_message_callback(message: Object) {
+		this.emit("message", message);
 	}
 	
 	connect_to_language_server():Promise<void> {
@@ -120,6 +125,7 @@ export class MessageIOReader extends AbstractMessageReader implements MessageRea
 			this.messageToken++;
 			var json = JSON.parse(msg);
 			this.callback(json);
+			this.io.on_message_callback(json);
 		}
 	}
 

src/utils.ts

@@ -1,7 +1,13 @@
-import { workspace } from "vscode";
+import * as vscode from "vscode";
+
+const CONFIG_CONTAINER = "godot_tools";
 
 export function get_configuration(name: string, default_value: any = null) {
-	return workspace.getConfiguration("godot_tools").get(name, default_value);
+	return vscode.workspace.getConfiguration(CONFIG_CONTAINER).get(name, default_value);
+}
+
+export function set_configuration(name: string, value: any) {
+	return vscode.workspace.getConfiguration(CONFIG_CONTAINER).update(name, value);
 }
 
 export function is_debug_mode(): boolean {