#43645 Prepare for activity groups contribution

src/vs/workbench/api/browser/viewsExtensionPoint.ts

@@ -83,6 +83,14 @@ namespace schema {
 	};
 }
 
+function getViewLocation(value: string): ViewLocation {
+	switch (value) {
+		case 'explorer': return ViewLocation.Explorer;
+		case 'debug': return ViewLocation.Debug;
+		default: return ViewLocation.get(`workbench.view.extension.${value}`) || ViewLocation.Explorer;
+	}
+}
+
 ExtensionsRegistry.registerExtensionPoint<{ [loc: string]: schema.IUserFriendlyViewDescriptor[] }>('views', [], schema.viewsContribution)
 	.setHandler((extensions) => {
 		for (let extension of extensions) {
@@ -93,12 +101,7 @@ ExtensionsRegistry.registerExtensionPoint<{ [loc: string]: schema.IUserFriendlyV
 					return;
 				}
 
-				const location = ViewLocation.getContributedViewLocation(entry.key);
-				if (!location) {
-					collector.warn(localize('locationId.invalid', "`{0}` is not a valid view location", entry.key));
-					return;
-				}
-
+				const location = getViewLocation(entry.key);
 				const registeredViews = ViewsRegistry.getViews(location);
 				const viewIds = [];
 				const viewDescriptors = coalesce(entry.value.map(item => {
@@ -129,4 +132,4 @@ ExtensionsRegistry.registerExtensionPoint<{ [loc: string]: schema.IUserFriendlyV
 				ViewsRegistry.registerViews(viewDescriptors);
 			});
 		}
-	});
+	});

src/vs/workbench/browser/parts/views/viewsViewlet.ts

@@ -544,7 +544,7 @@ export class ViewsViewlet extends PanelViewlet implements IViewsViewlet {
 			return false;
 		}
 
-		if (ViewLocation.getContributedViewLocation(this.location.id)) {
+		if (ViewLocation.get(this.location.id)) {
 			let visibleViewsCount = 0;
 			if (this.areExtensionsReady) {
 				visibleViewsCount = this.getViewDescriptorsFromRegistry().reduce((visibleViewsCount, v) => visibleViewsCount + (this.canBeVisible(v) ? 1 : 0), 0);

src/vs/workbench/common/views.ts

@@ -17,24 +17,23 @@ import { ThemeIcon } from 'vs/platform/theme/common/themeService';
 
 export class ViewLocation {
 
-	static readonly Explorer = new ViewLocation('workbench.view.explorer');
-	static readonly Debug = new ViewLocation('workbench.view.debug');
-	static readonly Extensions = new ViewLocation('workbench.view.extensions');
-
-	constructor(private _id: string) {
+	private static locations: Map<string, ViewLocation> = new Map<string, ViewLocation>();
+	static register(id: string): ViewLocation {
+		const viewLocation = new ViewLocation(id);
+		ViewLocation.locations.set(id, viewLocation);
+		return viewLocation;
 	}
-
-	get id(): string {
-		return this._id;
+	static get(value: string): ViewLocation {
+		return ViewLocation.locations.get(value);
 	}
 
-	static getContributedViewLocation(value: string): ViewLocation {
-		switch (value) {
-			case 'explorer': return ViewLocation.Explorer;
-			case 'debug': return ViewLocation.Debug;
-		}
-		return void 0;
-	}
+	static readonly Explorer: ViewLocation = ViewLocation.register('workbench.view.explorer');
+	static readonly Debug: ViewLocation = ViewLocation.register('workbench.view.debug');
+	static readonly Extensions: ViewLocation = ViewLocation.register('workbench.view.extensions');
+
+	private constructor(private _id: string) { }
+	get id(): string { return this._id; }
+
 }
 
 export interface IViewDescriptor {

src/vs/workbench/parts/quickopen/browser/viewPickerHandler.ts

@@ -146,11 +146,7 @@ export class ViewPickerHandler extends QuickOpenHandler {
 
 		// Views
 		viewlets.forEach((viewlet, index) => {
-			const viewLocation: ViewLocation = viewlet.id === EXPLORER_VIEWLET_ID ? ViewLocation.Explorer
-				: viewlet.id === DEBUG_VIEWLET_ID ? ViewLocation.Debug
-					: viewlet.id === EXTENSIONS_VIEWLET_ID ? ViewLocation.Extensions
-						: null;
-
+			const viewLocation: ViewLocation = ViewLocation.get(viewlet.id);
 			if (viewLocation) {
 				const viewEntriesForViewlet: ViewEntry[] = getViewEntriesForViewlet(viewlet, viewLocation);
 				viewEntries.push(...viewEntriesForViewlet);