Refresh master with initial release/0.24 snapshot (#332)

* Initial port of release/0.24 source code

* Fix additional headers

* Fix a typo in launch.json

src/vs/workbench/common/activity.ts

@@ -0,0 +1,43 @@
+/*---------------------------------------------------------------------------------------------
+ *  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 { IAction } from 'vs/base/common/actions';
+import { IConstructorSignature0 } from 'vs/platform/instantiation/common/instantiation';
+
+export interface IActivity {
+	id: string;
+	name: string;
+	keybindingId?: string;
+	cssClass: string;
+}
+
+export interface IGlobalActivity extends IActivity {
+	getActions(): IAction[];
+}
+
+export const GlobalActivityExtensions = 'workbench.contributions.globalActivities';
+
+export interface IGlobalActivityRegistry {
+	registerActivity(descriptor: IConstructorSignature0<IGlobalActivity>): void;
+	getActivities(): IConstructorSignature0<IGlobalActivity>[];
+}
+
+export class GlobalActivityRegistry implements IGlobalActivityRegistry {
+
+	private activityDescriptors = new Set<IConstructorSignature0<IGlobalActivity>>();
+
+	registerActivity(descriptor: IConstructorSignature0<IGlobalActivity>): void {
+		this.activityDescriptors.add(descriptor);
+	}
+
+	getActivities(): IConstructorSignature0<IGlobalActivity>[] {
+		const result: IConstructorSignature0<IGlobalActivity>[] = [];
+		this.activityDescriptors.forEach(d => result.push(d));
+		return result;
+	}
+}
+
+Registry.add(GlobalActivityExtensions, new GlobalActivityRegistry());