From ea6a5bb8fb886624f61bffece3df92e9491d12ce Mon Sep 17 00:00:00 2001
From: Guilherme Felipe <guilhermefelipecgs@gmail.com>
Date: Sat, 1 Dec 2018 11:25:43 -0200
Subject: [PATCH] Fix crash when multiple mouse buttons is pressed.

---
 scene/main/viewport.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index 9ceac0d7b0c..fd584e82add 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -1780,7 +1780,7 @@ void Viewport::_gui_input_event(Ref<InputEvent> p_event) {
 				}
 			}
 
-			if (gui.mouse_focus->can_process()) {
+			if (gui.mouse_focus && gui.mouse_focus->can_process()) {
 				_gui_call_input(gui.mouse_focus, mb);
 			}