From 100b9154dd00187079529dab7b4076bdac92c027 Mon Sep 17 00:00:00 2001
From: simon <none@none>
Date: Wed, 26 Feb 2014 12:49:29 -0800
Subject: MAINT-3555 : crash in LLPanel::~LLPanel() on shutdown.  Fixes to be
 paranoid about the return type for calls to LLView::getParent(): never assume
 a down cast is possible.

---
 indra/llui/lldraghandle.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'indra/llui/lldraghandle.cpp')

diff --git a/indra/llui/lldraghandle.cpp b/indra/llui/lldraghandle.cpp
index 5f69c6af31..304d21d0df 100755
--- a/indra/llui/lldraghandle.cpp
+++ b/indra/llui/lldraghandle.cpp
@@ -315,14 +315,15 @@ BOOL LLDragHandle::handleHover(S32 x, S32 y, MASK mask)
 		S32 delta_y = screen_y - mDragLastScreenY;
 
 		// if dragging a docked floater we want to undock
-		if (((LLFloater*)getParent())->isDocked())
+		LLFloater * parent = dynamic_cast<LLFloater *>(getParent());
+		if (parent && parent->isDocked())
 		{
 			const S32 SLOP = 12;
 
 			if (delta_y <= -SLOP || 
 				delta_y >= SLOP)
 			{
-				((LLFloater*)getParent())->setDocked(false, false);
+				parent->setDocked(false, false);
 				return TRUE;
 			}
 			else
-- 
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