Split up ext host <-> main thread communication to separate files

src/vs/workbench/api/node/mainThreadMessageService.ts

@@ -0,0 +1,59 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import nls = require('vs/nls');
+import {IMessageService} from 'vs/platform/message/common/message';
+import Severity from 'vs/base/common/severity';
+import {Action} from 'vs/base/common/actions';
+import {TPromise as Promise} from 'vs/base/common/winjs.base';
+
+export class MainThreadMessageService {
+
+	private _messageService: IMessageService;
+
+	constructor(@IMessageService messageService:IMessageService) {
+		this._messageService = messageService;
+	}
+
+	$showMessage(severity: Severity, message: string, commands: { title: string; isCloseAffordance: boolean; handle: number; }[]): Thenable<number> {
+
+		return new Promise<number>(resolve => {
+
+			let messageHide: Function;
+			let actions: MessageItemAction[] = [];
+			let hasCloseAffordance = false;
+
+			class MessageItemAction extends Action {
+				constructor(id: string, label: string, handle: number) {
+					super(id, label, undefined, true, () => {
+						resolve(handle);
+						messageHide(); // triggers dispose! make sure promise is already resolved
+						return undefined;
+					});
+				}
+				dispose(): void {
+					resolve(undefined);
+				}
+			}
+
+			commands.forEach(command => {
+				if (command.isCloseAffordance === true) {
+					hasCloseAffordance = true;
+				}
+				actions.push(new MessageItemAction('_extension_message_handle_' + command.handle, command.title, command.handle));
+			});
+
+			if (!hasCloseAffordance) {
+				actions.unshift(new MessageItemAction('__close', nls.localize('close', "Close"), undefined));
+			}
+
+			messageHide = this._messageService.show(severity, {
+				message,
+				actions
+			});
+		});
+	}
+}