Implement #41759

src/vs/workbench/parts/extensions/browser/extensionsStatus.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as DOM from 'vs/base/browser/dom';
+import { IStatusbarItem } from 'vs/workbench/browser/parts/statusbar/statusbar';
+import { Disposable, toDisposable, IDisposable } from 'vs/base/common/lifecycle';
+import { IExtensionManagementService, InstallExtensionEvent, DidInstallExtensionEvent } from 'vs/platform/extensionManagement/common/extensionManagement';
+import { localize } from 'vs/nls';
+import { getIdFromLocalExtensionId } from 'vs/platform/extensionManagement/common/extensionManagementUtil';
+
+export class InstallingStatusItem extends Disposable implements IStatusbarItem {
+
+	private statusElement: HTMLElement;
+	private installingExtensions: string[] = [];
+
+	constructor(
+		@IExtensionManagementService extensionManagementService: IExtensionManagementService
+	) {
+		super();
+		this.statusElement = DOM.$('div');
+		this.statusElement.style.display = 'none';
+
+		this._register(extensionManagementService.onInstallExtension(e => this.onInstallingExtension(e)));
+		this._register(extensionManagementService.onDidInstallExtension(e => this.onDidInstallExtension(e)));
+	}
+
+	render(parent: HTMLElement): IDisposable {
+		parent.appendChild(this.statusElement);
+		return toDisposable(() => this.dispose());
+	}
+
+	private onInstallingExtension(e: InstallExtensionEvent): void {
+		this.statusElement.style.display = 'block';
+		this.installingExtensions.push(getIdFromLocalExtensionId(e.identifier.id));
+
+		if (this.installingExtensions.length === 1) {
+			this.statusElement.textContent = localize('installingExtension', "Installing {0}", this.installingExtensions[0]);
+		} else {
+			this.statusElement.textContent = localize('installingExtensions', "Installing {0} extensions", this.installingExtensions.length);
+		}
+	}
+
+	private onDidInstallExtension(e: DidInstallExtensionEvent): void {
+		const index = this.installingExtensions.indexOf(getIdFromLocalExtensionId(e.identifier.id));
+		if (index !== -1) {
+			this.installingExtensions.splice(index, 1);
+			if (this.installingExtensions.length === 0) {
+				this.statusElement.textContent = '';
+				this.statusElement.style.display = 'none';
+			} else if (this.installingExtensions.length === 1) {
+				this.statusElement.textContent = localize('installingExtension', "Installing {0}", this.installingExtensions[0]);
+			} else {
+				this.statusElement.textContent = localize('installingExtensions', "Installing {0} extensions", this.installingExtensions.length);
+			}
+
+		}
+	}
+
+}
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src/vs/workbench/parts/extensions/electron-browser/extensions.contribution.ts

@@ -43,6 +43,8 @@ import { LifecyclePhase } from 'vs/platform/lifecycle/common/lifecycle';
 import { RuntimeExtensionsEditor, RuntimeExtensionsInput, ShowRuntimeExtensionsAction, IExtensionHostProfileService } from 'vs/workbench/parts/extensions/electron-browser/runtimeExtensionsEditor';
 import { EditorInput, IEditorInputFactory, IEditorInputFactoryRegistry, Extensions as EditorInputExtensions } from 'vs/workbench/common/editor';
 import { ExtensionHostProfileService } from 'vs/workbench/parts/extensions/electron-browser/extensionProfileService';
+import { IStatusbarRegistry, Extensions as StatusbarExtensions, StatusbarItemDescriptor, StatusbarAlignment } from 'vs/workbench/browser/parts/statusbar/statusbar';
+import { InstallingStatusItem } from 'vs/workbench/parts/extensions/browser/extensionsStatus';
 
 // Singletons
 registerSingleton(IExtensionGalleryService, ExtensionGalleryService);
@@ -223,3 +225,7 @@ CommandsRegistry.registerCommand('_extensions.manage', (accessor: ServicesAccess
 		extensionService.open(extension[0]).done(null, errors.onUnexpectedError);
 	}
 });
+
+
+let statusbarRegistry = <IStatusbarRegistry>Registry.as(StatusbarExtensions.Statusbar);
+statusbarRegistry.registerStatusbarItem(new StatusbarItemDescriptor(InstallingStatusItem, StatusbarAlignment.LEFT, 50 /* Medium Priority */));
\ No newline at end of file