From 99929b581d2f67733e4a46d9f67c90032aecd4ef Mon Sep 17 00:00:00 2001
From: Christof Marti <chrmarti@microsoft.com>
Date: Thu, 6 Dec 2018 21:30:50 +0100
Subject: [PATCH] Prevent default on mouse down (fixes #64350)

---
 src/vs/workbench/browser/parts/quickinput/quickInputList.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/vs/workbench/browser/parts/quickinput/quickInputList.ts b/src/vs/workbench/browser/parts/quickinput/quickInputList.ts
index c230e87ad45..558a89487ed 100644
--- a/src/vs/workbench/browser/parts/quickinput/quickInputList.ts
+++ b/src/vs/workbench/browser/parts/quickinput/quickInputList.ts
@@ -279,6 +279,12 @@ export class QuickInputList {
 					break;
 			}
 		}));
+		this.disposables.push(this.list.onMouseDown(e => {
+			if (e.browserEvent.button !== 2) {
+				// Works around / fixes #64350.
+				e.browserEvent.preventDefault();
+			}
+		}));
 		this.disposables.push(dom.addDisposableListener(this.container, dom.EventType.CLICK, e => {
 			if (e.x || e.y) { // Avoid 'click' triggered by 'space' on checkbox.
 				this._onLeave.fire();
-- 
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