From a034784dfa3c6b3f0dd535174c9eac946aeb32e8 Mon Sep 17 00:00:00 2001
From: "martijn.martijn@gmail.com" <martijn.martijn@gmail.com>
Date: Tue, 2 Oct 2007 07:50:51 -0700
Subject: [PATCH] Bug 398143 - Dragging scrollbar with mouse while autocomplete
 input has focus triggers autocomplete, r=mano, a=mconnor

---
 toolkit/components/satchel/src/nsFormFillController.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/toolkit/components/satchel/src/nsFormFillController.cpp b/toolkit/components/satchel/src/nsFormFillController.cpp
index d97a93c5abe4..71781ad3d803 100644
--- a/toolkit/components/satchel/src/nsFormFillController.cpp
+++ b/toolkit/components/satchel/src/nsFormFillController.cpp
@@ -791,6 +791,12 @@ nsFormFillController::MouseDown(nsIDOMEvent* aMouseEvent)
   if (!mouseEvent)
     return NS_ERROR_FAILURE;
 
+  nsCOMPtr<nsIDOMEventTarget> target;
+  aMouseEvent->GetTarget(getter_AddRefs(target));
+  nsCOMPtr<nsIDOMHTMLInputElement> targetInput = do_QueryInterface(target);
+  if (!targetInput)
+    return NS_OK;
+
   PRUint16 button;
   mouseEvent->GetButton(&button);
   if (button != 0)