3 files changed, 27 insertions, 1 deletions
diff --git a/indra/llui/llfloaterreg.cpp b/indra/llui/llfloaterreg.cpp
index 7588d8ab7a..85f9af126c 100644
--- a/indra/llui/llfloaterreg.cpp
+++ b/indra/llui/llfloaterreg.cpp
@@ -47,6 +47,7 @@ LLFloaterReg::instance_map_t LLFloaterReg::sInstanceMap;
 LLFloaterReg::build_map_t LLFloaterReg::sBuildMap;
 std::map<std::string,std::string> LLFloaterReg::sGroupMap;
 bool LLFloaterReg::sBlockShowFloaters = false;
+std::set<std::string> LLFloaterReg::sAlwaysShowableList;
 
 static LLFloaterRegListener sFloaterRegListener;
 
@@ -219,7 +220,9 @@ LLFloaterReg::const_instance_list_t& LLFloaterReg::getFloaterList(const std::str
 //static
 LLFloater* LLFloaterReg::showInstance(const std::string& name, const LLSD& key, BOOL focus) 
 {
-	if( sBlockShowFloaters )
+	if( sBlockShowFloaters
+			// see EXT-7090
+			&& sAlwaysShowableList.find(name) == sAlwaysShowableList.end())
 		return 0;//
 	LLFloater* instance = getInstance(name, key); 
 	if (instance) 
@@ -403,6 +406,14 @@ void LLFloaterReg::registerControlVariables()
 			declareVisibilityControl(name);
 		}
 	}
+
+	const LLSD& exclude_list = LLUI::sSettingGroups["config"]->getLLSD("always_showable_floaters");
+	for (LLSD::array_const_iterator iter = exclude_list.beginArray();
+		iter != exclude_list.endArray();
+		iter++)
+	{
+		sAlwaysShowableList.insert(iter->asString());
+	}
 }
 
 // Callbacks
diff --git a/indra/llui/llfloaterreg.h b/indra/llui/llfloaterreg.h
index 5cacf76771..f1ba41f638 100644
--- a/indra/llui/llfloaterreg.h
+++ b/indra/llui/llfloaterreg.h
@@ -76,6 +76,10 @@ private:
 	static build_map_t sBuildMap;
 	static std::map<std::string,std::string> sGroupMap;
 	static bool sBlockShowFloaters;
+	/**
+	 * Defines list of floater names that can be shown despite state of sBlockShowFloaters.
+	 */
+	static std::set<std::string> sAlwaysShowableList;
 	
 public:
 	// Registration
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index 390ec234d3..78a6ab1eaa 100644
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -1116,8 +1116,19 @@ void LLTextBase::reflow()
 
 	updateSegments();
 
+	S32 reflow_count = 0;
 	while(mReflowIndex < S32_MAX)
 	{
+		// we can get into an infinite loop if the document height does not monotonically increase
+		// with decreasing width (embedded ui elements with alternate layouts).  In that case, 
+		// we want to stop reflowing after 2 iterations.  We use 2, since we need to handle the case
+		// of introducing a vertical scrollbar causing a reflow with less width.  We should also always
+		// use an even number of iterations to avoid user visible oscillation of the layout
+		if(++reflow_count > 2)
+		{
+			lldebugs << "Breaking out of reflow due to possible infinite loop in " << getName() << llendl;
+			break;
+		}
 		S32 start_index = mReflowIndex;
 		mReflowIndex = S32_MAX;