SQL Operations Studio Public Preview 1 (0.23) release source code

src/sql/services/angularEventing/angularEventingService.ts

@@ -0,0 +1,60 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
+import { Subscription } from 'rxjs/Subscription';
+import { Subject } from 'rxjs/Subject';
+import { warn } from 'sql/base/common/log';
+
+const ANGULAREVENTING_SERVICE_ID = 'angularEventingService';
+export const IAngularEventingService = createDecorator<IAngularEventingService>(ANGULAREVENTING_SERVICE_ID);
+
+export enum AngularEventType {
+	NAV_DATABASE,
+	NAV_SERVER
+}
+
+export interface IAngularEventingService {
+	_serviceBrand: any;
+	/**
+	 * Adds a listener for the dashboard to send events, should only be called once for each dashboard by the dashboard itself
+	 * @param uri Uri of the dashboard
+	 * @param cb Listening function
+	 * @returns
+	 */
+	onAngularEvent(uri: string, cb: (event: AngularEventType) => void): Subscription;
+
+	/**
+	 * Send an event to the dashboard; no op if the dashboard has not started listening yet
+	 * @param uri Uri of the dashboard to send the event to
+	 * @param event event to send
+	 */
+	sendAngularEvent(uri: string, event: AngularEventType): void;
+}
+
+export class AngularEventingService implements IAngularEventingService {
+	public _serviceBrand: any;
+	private _angularMap = new Map<string, Subject<AngularEventType>>();
+
+	public onAngularEvent(uri: string, cb: (event: AngularEventType) => void): Subscription {
+		let subject: Subject<AngularEventType>;
+		if (!this._angularMap.has(uri)) {
+			subject = new Subject<AngularEventType>();
+			this._angularMap.set(uri, subject);
+		} else {
+			subject = this._angularMap.get(uri);
+		}
+		let sub = subject.subscribe(cb);
+		return sub;
+	}
+
+	public sendAngularEvent(uri: string, event: AngularEventType): void {
+		if (!this._angularMap.has(uri)) {
+			warn('Got request to send an event to a dashboard that has not started listening');
+		} else {
+			this._angularMap.get(uri).next(event);
+		}
+	}
+}