3 files changed, 18 insertions, 0 deletions
diff --git a/indra/newview/llconversationview.cpp b/indra/newview/llconversationview.cpp
index 441de2e1a5..73b2c6f88c 100755
--- a/indra/newview/llconversationview.cpp
+++ b/indra/newview/llconversationview.cpp
@@ -39,6 +39,7 @@
 #include "llfloaterreg.h"
 #include "llgroupiconctrl.h"
 #include "lluictrlfactory.h"
+#include "lltoolbarview.h"
 
 //
 // Implementation of conversations list session widgets
@@ -114,6 +115,12 @@ void LLConversationViewSession::startFlashing()
 	{
 		mFlashStarted = true;
 		mFlashTimer->startFlashing();
+		
+		// flash chat toolbar button if scrolled out of sight (because flashing will not be visible)
+		if (mContainer->isScrolledOutOfSight(this))
+		{
+			gToolBarView->flashCommand(LLCommandId("chat"), true);
+		}
 	}
 }
 
diff --git a/indra/newview/llfloaterimcontainer.cpp b/indra/newview/llfloaterimcontainer.cpp
index 73fcfa244e..c5edd11c12 100644
--- a/indra/newview/llfloaterimcontainer.cpp
+++ b/indra/newview/llfloaterimcontainer.cpp
@@ -1877,6 +1877,16 @@ void LLFloaterIMContainer::flashConversationItemWidget(const LLUUID& session_id,
 	}
 }
 
+bool LLFloaterIMContainer::isScrolledOutOfSight(LLConversationViewSession* conversation_item_widget)
+{
+	llassert(conversation_item_widget != NULL);
+
+	// check whether the widget is in the visible portion of the scroll container
+	LLRect widget_rect;
+	conversation_item_widget->localRectToOtherView(conversation_item_widget->getLocalRect(), &widget_rect, mConversationsRoot);
+	return !mConversationsRoot->getVisibleRect().overlaps(widget_rect);
+}
+
 void LLFloaterIMContainer::closeFloater(bool app_quitting/* = false*/)
 {
 	// Always unminimize before trying to close.
diff --git a/indra/newview/llfloaterimcontainer.h b/indra/newview/llfloaterimcontainer.h
index 33d63a391c..419239f90b 100644
--- a/indra/newview/llfloaterimcontainer.h
+++ b/indra/newview/llfloaterimcontainer.h
@@ -186,6 +186,7 @@ public:
 	void updateSpeakBtnState();
 	static bool isConversationLoggingAllowed();
 	void flashConversationItemWidget(const LLUUID& session_id, bool is_flashes);
+	bool isScrolledOutOfSight(LLConversationViewSession* conversation_item_widget);
 	boost::signals2::connection mMicroChangedSignal;
 	S32 getConversationListItemSize() { return mConversationsWidgets.size(); }