Merge from vscode 817eb6b0c720a4ecbc13c020afbbebfed667aa09 (#7356)

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

@@ -0,0 +1,53 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { ISCMResource, ISCMRepository, ISCMResourceGroup } from 'vs/workbench/contrib/scm/common/scm';
+import { IMenu } from 'vs/platform/actions/common/actions';
+import { ActionBar } from 'vs/base/browser/ui/actionbar/actionbar';
+import { IDisposable, Disposable, combinedDisposable, toDisposable } from 'vs/base/common/lifecycle';
+import { IAction } from 'vs/base/common/actions';
+import { createAndFillInActionBarActions } from 'vs/platform/actions/browser/menuEntryActionViewItem';
+import { equals } from 'vs/base/common/arrays';
+
+export function isSCMRepository(element: any): element is ISCMRepository {
+	return !!(element as ISCMRepository).provider && typeof (element as ISCMRepository).setSelected === 'function';
+}
+
+export function isSCMResourceGroup(element: any): element is ISCMResourceGroup {
+	return !!(element as ISCMResourceGroup).provider && !!(element as ISCMResourceGroup).elements;
+}
+
+export function isSCMResource(element: any): element is ISCMResource {
+	return !!(element as ISCMResource).sourceUri && isSCMResourceGroup((element as ISCMResource).resourceGroup);
+}
+
+export function connectPrimaryMenuToInlineActionBar(menu: IMenu, actionBar: ActionBar): IDisposable {
+	let cachedDisposable: IDisposable = Disposable.None;
+	let cachedPrimary: IAction[] = [];
+
+	const updateActions = () => {
+		const primary: IAction[] = [];
+		const secondary: IAction[] = [];
+
+		const disposable = createAndFillInActionBarActions(menu, { shouldForwardArgs: true }, { primary, secondary }, g => /^inline/.test(g));
+
+		if (equals(cachedPrimary, primary, (a, b) => a.id === b.id)) {
+			disposable.dispose();
+			return;
+		}
+
+		cachedDisposable = disposable;
+		cachedPrimary = primary;
+
+		actionBar.clear();
+		actionBar.push(primary, { icon: true, label: false });
+	};
+
+	updateActions();
+
+	return combinedDisposable(menu.onDidChange(updateActions), toDisposable(() => {
+		cachedDisposable.dispose();
+	}));
+}