move code from parts to contrib (#8319)

src/sql/workbench/contrib/connection/browser/savedConnectionTreeController.ts

@@ -0,0 +1,30 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { DefaultController, ICancelableEvent } from 'vs/base/parts/tree/browser/treeDefaults';
+import { ITree } from 'vs/base/parts/tree/browser/tree';
+import { IKeyboardEvent } from 'vs/base/browser/keyboardEvent';
+
+export class SavedConnectionTreeController extends DefaultController {
+	constructor(private clickcb: (element: any, eventish: ICancelableEvent, origin: string) => void) {
+		super();
+	}
+
+	protected onLeftClick(tree: ITree, element: any, eventish: ICancelableEvent, origin: string = 'mouse'): boolean {
+		this.clickcb(element, eventish, origin);
+		return super.onLeftClick(tree, element, eventish, origin);
+	}
+
+	protected onEnter(tree: ITree, event: IKeyboardEvent): boolean {
+		super.onEnter(tree, event);
+
+		// grab the current selection for use later
+		let selection = tree.getSelection();
+
+		this.clickcb(selection[0], event, 'keyboard');
+		tree.toggleExpansion(selection[0]);
+		return true;
+	}
+}