From 7f18a4bfeeb6374ea2e6c9f1c11ef8e29097fb2f Mon Sep 17 00:00:00 2001
From: Benjamin Pasero <benjpas@microsoft.com>
Date: Mon, 16 Mar 2020 10:31:09 +0100
Subject: [PATCH] quick input - fix integration tests

---
 src/vs/base/parts/quickinput/browser/quickInput.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vs/base/parts/quickinput/browser/quickInput.ts b/src/vs/base/parts/quickinput/browser/quickInput.ts
index 372fe2882c1..3479a6bbead 100644
--- a/src/vs/base/parts/quickinput/browser/quickInput.ts
+++ b/src/vs/base/parts/quickinput/browser/quickInput.ts
@@ -724,7 +724,7 @@ class QuickPick<T extends IQuickPickItem> extends QuickInput implements IQuickPi
 				this._selectedItems = selectedItems as T[];
 				this.onDidChangeSelectionEmitter.fire(selectedItems as T[]);
 				if (selectedItems.length) {
-					this.onDidAcceptEmitter.fire({ inBackground: (event as MouseEvent).button === 1 /* mouse middle click */ });
+					this.onDidAcceptEmitter.fire({ inBackground: event instanceof MouseEvent && event.button === 1 /* mouse middle click */ });
 				}
 			}));
 			this.visibleDisposables.add(this.ui.list.onChangedCheckedElements(checkedItems => {