Support left nav bar and inner tabs (#751)

* Add left nav bar and inner tab contribution

* place holder for dashboard left nav bar

* formatting

* refactor widget helper

* improving the panel look and feel

* removed extra files that added by accident

src/sql/platform/dashboard/common/dashboardRegistry.ts

@@ -34,6 +34,7 @@ export interface IDashboardRegistry {
 	registerDashboardProvider(id: string, properties: ProviderProperties): void;
 	getProperties(id: string): ProviderProperties;
 	registerTab(tab: IDashboardTab): void;
+	registerTabContent(id: string, schema: IJSONSchema): void;
 	tabs: Array<IDashboardTab>;
 	tabContentSchemaProperties: IJSONSchemaMap;
 }

src/sql/platform/dashboard/common/innerTabRegistry.ts

@@ -0,0 +1,70 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { Registry } from 'vs/platform/registry/common/platform';
+import { IJSONSchema, IJSONSchemaMap } from 'vs/base/common/jsonSchema';
+import { Extensions as ConfigurationExtension } from 'vs/platform/configuration/common/configurationRegistry';
+import { deepClone } from 'vs/base/common/objects';
+
+import { WidgetConfig } from 'sql/parts/dashboard/common/dashboardWidget';
+
+export const Extensions = {
+	InnerTabContributions: 'dashboard.contributions.innerTabs'
+};
+
+export interface IDashboardInnerTab {
+	id: string;
+	title: string;
+	hasIcon: boolean;
+	content?: object;
+}
+
+export interface IDashboardInnerTabRegistry {
+	registerInnerTab(tab: IDashboardInnerTab): void;
+	registerInnerTabContent(id: string, schema: IJSONSchema): void;
+	innerTabs: Array<IDashboardInnerTab>;
+	innerTabContentSchemaProperties: IJSONSchemaMap;
+}
+
+class DashboardInnerTabRegistry implements IDashboardInnerTabRegistry {
+	private _innertabs = new Array<IDashboardInnerTab>();
+	private _dashboardInnerTabContentSchemaProperties: IJSONSchemaMap = {};
+
+	public registerInnerTab(tab: IDashboardInnerTab): void {
+		this._innertabs.push(tab);
+	}
+
+	public get innerTabs(): Array<IDashboardInnerTab> {
+		return this._innertabs;
+	}
+
+	/**
+	 * Register a dashboard widget
+	 * @param id id of the widget
+	 * @param schema config schema of the widget
+	 */
+	public registerInnerTabContent(id: string, schema: IJSONSchema): void {
+		this._dashboardInnerTabContentSchemaProperties[id] = schema;
+	}
+
+	public get innerTabContentSchemaProperties(): IJSONSchemaMap {
+		return deepClone(this._dashboardInnerTabContentSchemaProperties);
+	}
+}
+
+const dashboardInnerTabRegistry = new DashboardInnerTabRegistry();
+Registry.add(Extensions.InnerTabContributions, dashboardInnerTabRegistry);
+
+export function registerInnerTab(innerTab: IDashboardInnerTab): void {
+	dashboardInnerTabRegistry.registerInnerTab(innerTab);
+}
+
+export function registerInnerTabContent(id: string, schema: IJSONSchema): void {
+	dashboardInnerTabRegistry.registerInnerTabContent(id, schema);
+}
+
+export function generateInnerTabContentSchemaProperties(): IJSONSchemaMap {
+	return dashboardInnerTabRegistry.innerTabContentSchemaProperties;
+}