3 files changed, 94 insertions, 20 deletions

diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp
index 4264028338..5cb840fd61 100644
--- a/indra/llui/llmenugl.cpp
+++ b/indra/llui/llmenugl.cpp
@@ -4087,25 +4087,39 @@ void LLTearOffMenu::closeTearOff()
 }
 
 LLContextMenuBranch::LLContextMenuBranch(const LLContextMenuBranch::Params& p) 
-:	LLMenuItemGL(p),
-	mBranch( p.branch()->getHandle() )
+:	LLMenuItemGL(p)
 {
-	mBranch.get()->hide();
-	mBranch.get()->setParentMenuItem(this);
+	LLContextMenu* branch = static_cast<LLContextMenu*>(p.branch);
+	if (branch)
+	{
+		mBranch = branch->getHandle();
+		branch->hide();
+		branch->setParentMenuItem(this);
+	}
+}
+
+LLContextMenuBranch::~LLContextMenuBranch()
+{
+	if (mBranch.get())
+	{
+		mBranch.get()->die();
+	}
 }
 
 // called to rebuild the draw label
 void LLContextMenuBranch::buildDrawLabel( void )
 {
+	auto menu = getBranch();
+	if (menu)
 	{
 		// default enablement is this -- if any of the subitems are
 		// enabled, this item is enabled. JC
-		U32 sub_count = mBranch.get()->getItemCount();
+		U32 sub_count = menu->getItemCount();
 		U32 i;
 		BOOL any_enabled = FALSE;
 		for (i = 0; i < sub_count; i++)
 		{
-			LLMenuItemGL* item = mBranch.get()->getItem(i);
+			LLMenuItemGL* item = menu->getItem(i);
 			item->buildDrawLabel();
 			if (item->getEnabled() && !item->getDrawTextDisabled() )
 			{
@@ -4127,13 +4141,17 @@ void LLContextMenuBranch::buildDrawLabel( void )
 
 void	LLContextMenuBranch::showSubMenu()
 {
-	LLMenuItemGL* menu_item = mBranch.get()->getParentMenuItem();
-	if (menu_item != NULL && menu_item->getVisible())
+	auto menu = getBranch();
+	if(menu)
 	{
-		S32 center_x;
-		S32 center_y;
-		localPointToScreen(getRect().getWidth(), getRect().getHeight() , &center_x, &center_y);
-		mBranch.get()->show(center_x, center_y);
+		LLMenuItemGL* menu_item = menu->getParentMenuItem();
+		if (menu_item != NULL && menu_item->getVisible())
+		{
+			S32 center_x;
+			S32 center_y;
+			localPointToScreen(getRect().getWidth(), getRect().getHeight(), &center_x, &center_y);
+			menu->show(center_x, center_y);
+		}
 	}
 }
 
@@ -4147,13 +4165,17 @@ void LLContextMenuBranch::setHighlight( BOOL highlight )
 {
 	if (highlight == getHighlight()) return;
 	LLMenuItemGL::setHighlight(highlight);
-	if( highlight )
-	{
-		showSubMenu();
-	}
-	else
+	auto menu = getBranch();
+	if (menu)
 	{
-		mBranch.get()->hide();
+		if (highlight)
+		{
+			showSubMenu();
+		}
+		else
+		{
+			menu->hide();
+		}
 	}
 }
 
diff --git a/indra/llui/llmenugl.h b/indra/llui/llmenugl.h
index abbfd9a24a..f84c4d41eb 100644
--- a/indra/llui/llmenugl.h
+++ b/indra/llui/llmenugl.h
@@ -745,8 +745,7 @@ public:
 
 	LLContextMenuBranch(const Params&);
 
-	virtual ~LLContextMenuBranch()
-	{}
+	virtual ~LLContextMenuBranch();
 
 	// called to rebuild the draw label
 	virtual void	buildDrawLabel( void );
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index 5ce46b143a..49f5756976 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -3420,6 +3420,59 @@ void LLViewerWindow::updateUI()
 		root_view = mRootView;
 	}
 
+	static LLCachedControl<bool> dump_menu_holder(gSavedSettings, "DumpMenuHolderSize", false);
+	if (dump_menu_holder)
+	{
+		static bool init = false;
+		static LLFrameTimer child_count_timer;
+		static std::vector <std::string> child_vec;
+		if (!init)
+		{
+			child_count_timer.resetWithExpiry(5.f);
+			init = true;
+		}
+		if (child_count_timer.hasExpired())
+		{
+			LL_INFOS() << "gMenuHolder child count: " << gMenuHolder->getChildCount() << LL_ENDL;
+			std::vector<std::string> local_child_vec;
+			LLView::child_list_t child_list = *gMenuHolder->getChildList();
+			for (auto child : child_list)
+			{
+				local_child_vec.emplace_back(child->getName());
+			}
+			if (!local_child_vec.empty() && local_child_vec != child_vec)
+			{
+				std::vector<std::string> out_vec;
+				std::sort(local_child_vec.begin(), local_child_vec.end());
+				std::sort(child_vec.begin(), child_vec.end());
+				std::set_difference(child_vec.begin(), child_vec.end(), local_child_vec.begin(), local_child_vec.end(), std::inserter(out_vec, out_vec.begin()));
+				if (!out_vec.empty())
+				{
+					LL_INFOS() << "gMenuHolder removal diff size: '"<<out_vec.size() <<"' begin_child_diff";
+					for (auto str : out_vec)
+					{
+						LL_CONT << " : " << str;
+					}
+					LL_CONT << " : end_child_diff" << LL_ENDL;
+				}
+
+				out_vec.clear();
+				std::set_difference(local_child_vec.begin(), local_child_vec.end(), child_vec.begin(), child_vec.end(), std::inserter(out_vec, out_vec.begin()));
+				if (!out_vec.empty())
+				{
+					LL_INFOS() << "gMenuHolder addition diff size: '" << out_vec.size() << "' begin_child_diff";
+					for (auto str : out_vec)
+					{
+						LL_CONT << " : " << str;
+					}
+					LL_CONT << " : end_child_diff" << LL_ENDL;
+				}
+				child_vec.swap(local_child_vec);
+			}
+			child_count_timer.resetWithExpiry(5.f);
+		}
+	}
+
 	// only update mouse hover set when UI is visible (since we shouldn't send hover events to invisible UI
 	if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI))
 	{