scm: fix actions context

src/vs/workbench/browser/composite.ts

@@ -173,6 +173,13 @@ export abstract class Composite extends Component implements IComposite {
 		return null;
 	}
 
+	/**
+	 * Provide a context to be passed to the toolbar.
+	 */
+	getActionsContext(): any {
+		return null;
+	}
+
 	/**
 	 * Returns the instance of IActionRunner to use with this composite for the
 	 * composite tool bar.

src/vs/workbench/browser/parts/compositePart.ts

@@ -342,6 +342,9 @@ export abstract class CompositePart<T extends Composite> extends Part {
 		primaryActions.push(...this.getActions());
 		secondaryActions.push(...this.getSecondaryActions());
 
+		// Update context
+		this.toolBar.context = this.actionsContextProvider();
+
 		// Return fn to set into toolbar
 		return this.toolBar.setActions(prepareActions(primaryActions), prepareActions(secondaryActions));
 	}
@@ -438,6 +441,16 @@ export abstract class CompositePart<T extends Composite> extends Part {
 		return null;
 	}
 
+	protected actionsContextProvider(): any {
+
+		// Check Active Composite
+		if (this.activeComposite) {
+			return this.activeComposite.getActionsContext();
+		}
+
+		return null;
+	}
+
 	createContentArea(parent: HTMLElement): HTMLElement {
 		const contentContainer = append(parent, $('.content'));
 

src/vs/workbench/contrib/scm/browser/scmViewlet.ts

@@ -1072,9 +1072,6 @@ export class SCMViewlet extends ViewContainerViewlet implements IViewModel {
 		}
 	}
 
-	// private contributedViews: PersistentContributableViewsModel;
-	// private contributedViewDisposables: IDisposable[] = [];
-
 	constructor(
 		@IPartService partService: IPartService,
 		@ITelemetryService telemetryService: ITelemetryService,
@@ -1217,4 +1214,10 @@ export class SCMViewlet extends ViewContainerViewlet implements IViewModel {
 
 		return new ContextAwareMenuItemActionItem(action, this.keybindingService, this.notificationService, this.contextMenuService);
 	}
+
+	getActionsContext(): any {
+		if (this.visibleRepositories.length === 1) {
+			return this.repositories[0].provider;
+		}
+	}
 }