scm: selected repositories

src/vs/workbench/parts/scm/electron-browser/scmViewlet.ts

@@ -1321,6 +1321,11 @@ export class SCMViewlet extends PanelViewlet implements IViewModel, IViewsViewle
 
 			this.updateTitleArea();
 		}
+
+		if (this.isVisible()) {
+			panelsToRemove.forEach(p => p.repository.setSelected(false));
+			newRepositoryPanels.forEach(p => p.repository.setSelected(true));
+		}
 	}
 
 	private getContributableViewsSize(): number {

src/vs/workbench/services/scm/common/scm.ts

@@ -96,9 +96,12 @@ export interface ISCMInput {
 
 export interface ISCMRepository extends IDisposable {
 	readonly onDidFocus: Event<void>;
+	readonly selected: boolean;
+	readonly onDidChangeSelection: Event<boolean>;
 	readonly provider: ISCMProvider;
 	readonly input: ISCMInput;
 	focus(): void;
+	setSelected(selected: boolean): void;
 }
 
 export interface ISCMService {
@@ -108,6 +111,8 @@ export interface ISCMService {
 	readonly onDidRemoveRepository: Event<ISCMRepository>;
 
 	readonly repositories: ISCMRepository[];
+	readonly selectedRepositories: ISCMRepository[];
+	readonly onDidChangeSelectedRepositories: Event<ISCMRepository[]>;
 
 	registerSCMProvider(provider: ISCMProvider): ISCMRepository;
 }

src/vs/workbench/services/scm/common/scmService.ts

@@ -10,6 +10,7 @@ import { Event, Emitter } from 'vs/base/common/event';
 import { ISCMService, ISCMProvider, ISCMInput, ISCMRepository, IInputValidator } from './scm';
 import { ILogService } from 'vs/platform/log/common/log';
 import { TPromise } from 'vs/base/common/winjs.base';
+import { equals } from 'vs/base/common/arrays';
 
 class SCMInput implements ISCMInput {
 
@@ -61,6 +62,14 @@ class SCMRepository implements ISCMRepository {
 	private _onDidFocus = new Emitter<void>();
 	readonly onDidFocus: Event<void> = this._onDidFocus.event;
 
+	private _selected = false;
+	get selected(): boolean {
+		return this._selected;
+	}
+
+	private _onDidChangeSelection = new Emitter<boolean>();
+	readonly onDidChangeSelection: Event<boolean> = this._onDidChangeSelection.event;
+
 	readonly input: ISCMInput = new SCMInput();
 
 	constructor(
@@ -72,6 +81,11 @@ class SCMRepository implements ISCMRepository {
 		this._onDidFocus.fire();
 	}
 
+	setSelected(selected: boolean): void {
+		this._selected = selected;
+		this._onDidChangeSelection.fire(selected);
+	}
+
 	dispose(): void {
 		this.disposable.dispose();
 		this.provider.dispose();
@@ -86,6 +100,12 @@ export class SCMService implements ISCMService {
 	private _repositories: ISCMRepository[] = [];
 	get repositories(): ISCMRepository[] { return [...this._repositories]; }
 
+	private _selectedRepositories: ISCMRepository[] = [];
+	get selectedRepositories(): ISCMRepository[] { return [...this._selectedRepositories]; }
+
+	private _onDidChangeSelectedRepositories = new Emitter<ISCMRepository[]>();
+	readonly onDidChangeSelectedRepositories: Event<ISCMRepository[]> = this._onDidChangeSelectedRepositories.event;
+
 	private _onDidAddProvider = new Emitter<ISCMRepository>();
 	get onDidAddRepository(): Event<ISCMRepository> { return this._onDidAddProvider.event; }
 
@@ -110,15 +130,34 @@ export class SCMService implements ISCMService {
 				return;
 			}
 
+			selectedDisposable.dispose();
 			this._providerIds.delete(provider.id);
 			this._repositories.splice(index, 1);
 			this._onDidRemoveProvider.fire(repository);
 		});
 
 		const repository = new SCMRepository(provider, disposable);
+		const selectedDisposable = repository.onDidChangeSelection(this.onDidChangeSelection, this);
+
 		this._repositories.push(repository);
 		this._onDidAddProvider.fire(repository);
 
+		// automatically select the first repository
+		if (this._repositories.length === 1) {
+			repository.setSelected(true);
+		}
+
 		return repository;
 	}
+
+	private onDidChangeSelection(): void {
+		const selectedRepositories = this._repositories.filter(r => r.selected);
+
+		if (equals(this._selectedRepositories, selectedRepositories)) {
+			return;
+		}
+
+		this._selectedRepositories = this._repositories.filter(r => r.selected);
+		this._onDidChangeSelectedRepositories.fire(this.selectedRepositories);
+	}
 }