fixes microsoft#67755

joaomoreno · joaomoreno · commit 8020bdcf22a9 · 2019-02-01T16:52:33.000+01:00
diff --git a/src/vs/base/browser/ui/list/listWidget.ts b/src/vs/base/browser/ui/list/listWidget.ts
@@ -1066,7 +1066,7 @@ export class List<T> implements ISpliceable<T>, IDisposable {
 	private mouseController: MouseController<T> | undefined;
 
 	get multipleSelectionController(): IMultipleSelectionController<T> {
-		return this.mouseController ? this.mouseController.multipleSelectionController : DefaultMultipleSelectionContoller;
+		return (this.mouseController && this.mouseController.multipleSelectionController) || DefaultMultipleSelectionContoller;
 	}
 
 	private _onDidUpdateOptions = new Emitter<IListOptions<T>>();

Original file line number	Diff line number	Diff line change
`@@ -1066,7 +1066,7 @@ export class List<T> implements ISpliceable<T>, IDisposable {`
`1066`	`1066`	`private mouseController: MouseController<T> \| undefined;`
`1067`	`1067`
`1068`	`1068`	`get multipleSelectionController(): IMultipleSelectionController<T> {`
`1069`		`- return this.mouseController ? this.mouseController.multipleSelectionController : DefaultMultipleSelectionContoller;`
	`1069`	`+ return (this.mouseController && this.mouseController.multipleSelectionController) \|\| DefaultMultipleSelectionContoller;`
`1070`	`1070`	`}`
`1071`	`1071`
`1072`	`1072`	`private _onDidUpdateOptions = new Emitter<IListOptions<T>>();`