From 47647a05aebfbb7cf2fc7792631c7760fa6f610a Mon Sep 17 00:00:00 2001
From: geequlim <geequlim@gmail.com>
Date: Fri, 4 Oct 2019 19:22:02 +0800
Subject: [PATCH] [WIP] Add NativeDocumentManager to show native symbol
 informations

---
 src/godot-tools.ts                |  2 +-
 src/lsp/GDScriptLanguageClient.ts | 13 ++++---
 src/lsp/MessageIO.ts              |  3 +-
 src/lsp/NativeDocumentManager.ts  | 65 +++++++++++++++++++++++++++++++
 4 files changed, 76 insertions(+), 7 deletions(-)
 create mode 100644 src/lsp/NativeDocumentManager.ts

diff --git a/src/godot-tools.ts b/src/godot-tools.ts
index 790fa52..39f0056 100644
--- a/src/godot-tools.ts
+++ b/src/godot-tools.ts
@@ -17,7 +17,7 @@ export class GodotTools {
 
 	constructor(p_context: vscode.ExtensionContext) {
 		this.context = p_context;
-		this.client = new GDScriptLanguageClient();
+		this.client = new GDScriptLanguageClient(p_context);
 		this.client.watch_status(this.on_client_status_changed.bind(this));
 		this.connection_status = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Right);
 	}
diff --git a/src/lsp/GDScriptLanguageClient.ts b/src/lsp/GDScriptLanguageClient.ts
index ae1d55e..3df2d6f 100644
--- a/src/lsp/GDScriptLanguageClient.ts
+++ b/src/lsp/GDScriptLanguageClient.ts
@@ -1,11 +1,10 @@
 import * as vscode from 'vscode';
-import { LanguageClient, LanguageClientOptions, ServerOptions, RequestMessage, NotificationMessage } from "vscode-languageclient";
+import { LanguageClient, LanguageClientOptions, ServerOptions, RequestMessage } from "vscode-languageclient";
 import { is_debug_mode, get_configuration } from "../utils";
-import { MessageIO, MessageIOReader, MessageIOWriter } from "./MessageIO";
-import { ResponseMessage } from "vscode-jsonrpc/lib/messages";
+import { MessageIO, MessageIOReader, MessageIOWriter, Message } from "./MessageIO";
 import logger from "../loggger";
 import { EventEmitter } from "events";
-type Message = RequestMessage | ResponseMessage | NotificationMessage;
+import NativeDocumentManager from './NativeDocumentManager';
 
 function getClientOptions(): LanguageClientOptions {
 	return {
@@ -44,11 +43,13 @@ export default class GDScriptLanguageClient extends LanguageClient {
 	
 	public io: MessageIO = io;
 	
+	private context: vscode.ExtensionContext;
 	private _started : boolean = false;
 	private _status : ClientStatus;
 	private _status_changed_callbacks: ((v : ClientStatus)=>void)[] = [];
 	private _initialize_request: Message = null;
 	private message_handler: MessageHandler = null;
+	private native_doc_manager: NativeDocumentManager = null;	
 	
 	public get started() : boolean { return this._started; }
 	public get status() : ClientStatus { return this._status; }
@@ -67,14 +68,16 @@ export default class GDScriptLanguageClient extends LanguageClient {
 		}
 	}
 	
-	constructor() {
+	constructor(context: vscode.ExtensionContext) {
 		super(`GDScriptLanguageClient`, serverOptions, getClientOptions());
+		this.context = context;
 		this.status = ClientStatus.PENDING;
 		this.message_handler = new MessageHandler();
 		this.io.on('disconnected', this.on_disconnected.bind(this));
 		this.io.on('connected', this.on_connected.bind(this));
 		this.io.on('message', this.on_message.bind(this));
 		this.io.on('send_message', this.on_send_message.bind(this));
+		this.native_doc_manager = new NativeDocumentManager(this.io);
 	}
 	
 	connect_to_server() {
diff --git a/src/lsp/MessageIO.ts b/src/lsp/MessageIO.ts
index c26ccdd..c8bdca1 100644
--- a/src/lsp/MessageIO.ts
+++ b/src/lsp/MessageIO.ts
@@ -3,7 +3,8 @@ import { EventEmitter } from "events";
 import * as WebSocket  from 'ws';
 import MessageBuffer from "./MessageBuffer";
 import { AbstractMessageWriter, MessageWriter } from "vscode-jsonrpc/lib/messageWriter";
-import { Message } from "vscode-jsonrpc";
+import { RequestMessage, ResponseMessage, NotificationMessage } from "vscode-jsonrpc/lib/messages";
+export type Message = RequestMessage | ResponseMessage | NotificationMessage;
 
 export class MessageIO extends EventEmitter {
 	
diff --git a/src/lsp/NativeDocumentManager.ts b/src/lsp/NativeDocumentManager.ts
new file mode 100644
index 0000000..794c1ce
--- /dev/null
+++ b/src/lsp/NativeDocumentManager.ts
@@ -0,0 +1,65 @@
+import * as vscode from 'vscode';
+import { EventEmitter } from "events";
+import { MessageIO } from "./MessageIO";
+import { NotificationMessage } from "vscode-jsonrpc";
+import { DocumentSymbol } from "vscode";
+const METHOD_ID = 'gdscript/show_native_symbol';
+
+class GodotNativeSymbol extends DocumentSymbol {
+	documentation: string;
+	native_class: string;
+};
+
+export default class NativeDocumentManager extends EventEmitter {
+		
+	constructor(io: MessageIO) {
+		super();
+		io.on("message", (message: NotificationMessage)=>{
+			if (message.method == METHOD_ID) {
+				this.show_native_symbol(message.params);
+			}
+		});
+	}
+
+	
+	private show_native_symbol(symbol: GodotNativeSymbol) {
+		// 创建webview
+		const panel = vscode.window.createWebviewPanel(
+			'doc',
+			symbol.name,
+			vscode.ViewColumn.Nine,
+			{
+				enableScripts: false, // 启用JS，默认禁用
+				retainContextWhenHidden: false, // webview被隐藏时保持状态，避免被重置
+			}
+		);
+		panel.title = symbol.name;
+		panel.webview.html = this.make_html_content(symbol);
+	}
+	
+	private make_html_content(symbol: GodotNativeSymbol): string {
+		return `<html><body>${this.make_symbol_document(symbol)}</body></html>`;
+	}
+	
+	private make_symbol_document(symbol: GodotNativeSymbol): string {
+		let doc = '';
+		function line(text: string) {
+			doc += text + '\n';
+		};
+		
+		switch (symbol.kind) {
+			case vscode.SymbolKind.Class: {
+				line(`<h1>${symbol.detail}</h1>`);
+				line(`<h3>Description</h3>`)
+				line(`<p>${this.parse_markdown(symbol.documentation)}</p>`);
+			} break;
+			default:
+				break;
+		}
+		return doc;
+	}
+	
+	private parse_markdown(markdown: string): string {
+		return markdown;
+	}
+}