6 files changed, 79 insertions, 66 deletions

diff --git a/indra/newview/llavatarlist.cpp b/indra/newview/llavatarlist.cpp
index e54e47180f..9f02f301a1 100644
--- a/indra/newview/llavatarlist.cpp
+++ b/indra/newview/llavatarlist.cpp
@@ -46,6 +46,7 @@
 #include "lluuid.h"
 #include "llvoiceclient.h"
 #include "llviewercontrol.h"	// for gSavedSettings
+#include "lltooldraganddrop.h"
 
 static LLDefaultChildRegistry::Register<LLAvatarList> r("avatar_list");
 
@@ -462,6 +463,57 @@ BOOL LLAvatarList::handleRightMouseDown(S32 x, S32 y, MASK mask)
 	return handled;
 }
 
+BOOL LLAvatarList::handleMouseDown(S32 x, S32 y, MASK mask)
+{
+	gFocusMgr.setMouseCapture(this);
+
+	S32 screen_x;
+	S32 screen_y;
+	localPointToScreen(x, y, &screen_x, &screen_y);
+	LLToolDragAndDrop::getInstance()->setDragStart(screen_x, screen_y);
+
+	return LLFlatListViewEx::handleMouseDown(x, y, mask);
+}
+
+BOOL LLAvatarList::handleMouseUp( S32 x, S32 y, MASK mask )
+{
+	if(hasMouseCapture())
+	{
+		gFocusMgr.setMouseCapture(NULL);
+	}
+
+	return LLFlatListViewEx::handleMouseUp(x, y, mask);
+}
+
+BOOL LLAvatarList::handleHover(S32 x, S32 y, MASK mask)
+{
+	bool handled = hasMouseCapture();
+	if(handled)
+	{
+		S32 screen_x;
+		S32 screen_y;
+		localPointToScreen(x, y, &screen_x, &screen_y);
+
+		if(LLToolDragAndDrop::getInstance()->isOverThreshold(screen_x, screen_y))
+		{
+			// First, create the global drag and drop object
+			std::vector<EDragAndDropType> types;
+			uuid_vec_t cargo_ids;
+			getSelectedUUIDs(cargo_ids);
+			types.resize(cargo_ids.size(), DAD_PERSON);
+			LLToolDragAndDrop::ESource src = LLToolDragAndDrop::SOURCE_PEOPLE;
+			LLToolDragAndDrop::getInstance()->beginMultiDrag(types, cargo_ids, src);
+		}
+	}
+
+	if(!handled)
+	{
+		handled = LLFlatListViewEx::handleHover(x, y, mask);
+	}
+
+	return handled;
+}
+
 bool LLAvatarList::isAvalineItemSelected()
 {
 	std::vector<LLPanel*> selected_items;
diff --git a/indra/newview/llavatarlist.h b/indra/newview/llavatarlist.h
index 4814a88a79..3542577ae3 100644
--- a/indra/newview/llavatarlist.h
+++ b/indra/newview/llavatarlist.h
@@ -84,6 +84,9 @@ public:
 	bool getIconsVisible() const { return mShowIcons; }
 	const std::string getIconParamName() const{return mIconParamName;}
 	virtual BOOL handleRightMouseDown(S32 x, S32 y, MASK mask);
+	/*virtual*/ BOOL handleMouseDown( S32 x, S32 y, MASK mask );
+	/*virtual*/ BOOL handleMouseUp(S32 x, S32 y, MASK mask);
+	/*virtual*/ BOOL handleHover(S32 x, S32 y, MASK mask);
 
 	// Return true if filter has at least one match.
 	bool filterHasMatches();
diff --git a/indra/newview/llavatarlistitem.cpp b/indra/newview/llavatarlistitem.cpp
index 3ed0c7c482..3e6c817dd6 100644
--- a/indra/newview/llavatarlistitem.cpp
+++ b/indra/newview/llavatarlistitem.cpp
@@ -368,61 +368,6 @@ BOOL LLAvatarListItem::handleDoubleClick(S32 x, S32 y, MASK mask)
 	return LLPanel::handleDoubleClick(x, y, mask);
 }
 
-BOOL LLAvatarListItem::handleMouseDown(S32 x, S32 y, MASK mask)
-{
-	if (LLUICtrl::handleMouseDown(x, y, mask))
-	{
-		return TRUE;
-	}
-
-	gFocusMgr.setMouseCapture(this);
-
-	S32 screen_x;
-	S32 screen_y;
-	localPointToScreen(x, y, &screen_x, &screen_y);
-	LLToolDragAndDrop::getInstance()->setDragStart(screen_x, screen_y);
-
-	return TRUE;
-}
-
-BOOL LLAvatarListItem::handleMouseUp( S32 x, S32 y, MASK mask )
-{
-	if (LLUICtrl::childrenHandleMouseUp(x, y, mask))
-	{
-		return TRUE;
-	}
-
-	if(hasMouseCapture())
-	{
-		gFocusMgr.setMouseCapture(NULL);
-	}
-	return TRUE;
-}
-
-BOOL LLAvatarListItem::handleHover(S32 x, S32 y, MASK mask)
-{
-	bool handled = hasMouseCapture();
-	if(handled)
-	{
-		S32 screen_x;
-		S32 screen_y;
-		localPointToScreen(x, y, &screen_x, &screen_y);
-
-		if(LLToolDragAndDrop::getInstance()->isOverThreshold(screen_x, screen_y))
-		{
-			// First, create the global drag and drop object
-			std::vector<EDragAndDropType> types;
-			uuid_vec_t cargo_ids;
-			types.push_back(DAD_PERSON);
-			cargo_ids.push_back(mAvatarId);
-			LLToolDragAndDrop::ESource src = LLToolDragAndDrop::SOURCE_PEOPLE;
-			LLToolDragAndDrop::getInstance()->beginMultiDrag(types, cargo_ids, src);
-		}
-	}
-
-	return handled;
-}
-
 void LLAvatarListItem::setValue( const LLSD& value )
 {
 	if (!value.isMap()) return;;
diff --git a/indra/newview/llavatarlistitem.h b/indra/newview/llavatarlistitem.h
index 96aed20016..7ef35a746e 100644
--- a/indra/newview/llavatarlistitem.h
+++ b/indra/newview/llavatarlistitem.h
@@ -115,9 +115,6 @@ public:
 	void onProfileBtnClick();
 
 	/*virtual*/ BOOL handleDoubleClick(S32 x, S32 y, MASK mask);
-	/*virtual*/ BOOL handleMouseDown( S32 x, S32 y, MASK mask );
-	/*virtual*/ BOOL handleMouseUp(S32 x, S32 y, MASK mask);
-	/*virtual*/ BOOL handleHover(S32 x, S32 y, MASK mask);
 
 protected:
 	/**
diff --git a/indra/newview/llfloaterimsession.cpp b/indra/newview/llfloaterimsession.cpp
index f754853b82..50b2ed8c51 100644
--- a/indra/newview/llfloaterimsession.cpp
+++ b/indra/newview/llfloaterimsession.cpp
@@ -1044,6 +1044,19 @@ void LLFloaterIMSession::processSessionUpdate(const LLSD& session_update)
 }
 
 // virtual
+void LLFloaterIMSession::draw()
+{
+	// add people who were added via dropPerson()
+	if (!mPendingParticipants.empty())
+	{
+		addSessionParticipants(mPendingParticipants);
+		mPendingParticipants.clear();
+	}
+
+	LLFloaterIMSessionTab::draw();
+}
+
+// virtual
 BOOL LLFloaterIMSession::handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
 									EDragAndDropType cargo_type,
 									void* cargo_data,
@@ -1081,7 +1094,9 @@ bool LLFloaterIMSession::dropPerson(LLUUID* person_id, bool drop)
 		res = canAddSelectedToChat(ids);
 		if(res && drop)
 		{
-			addSessionParticipants(ids);
+			// these people will be added during the next draw() call
+			// (so they can be added all at once)
+			mPendingParticipants.push_back(*person_id);
 		}
 	}
 
diff --git a/indra/newview/llfloaterimsession.h b/indra/newview/llfloaterimsession.h
index e7fd6f9ff3..381b3cf721 100644
--- a/indra/newview/llfloaterimsession.h
+++ b/indra/newview/llfloaterimsession.h
@@ -69,6 +69,13 @@ public:
 	/*virtual*/ BOOL getVisible();
 	// Check typing timeout timer.
 
+	/*virtual*/ void draw();
+	/*virtual*/ BOOL handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
+		EDragAndDropType cargo_type,
+		void* cargo_data,
+		EAcceptance* accept,
+		std::string& tooltip_msg);
+
 	static LLFloaterIMSession* findInstance(const LLUUID& session_id);
 	static LLFloaterIMSession* getInstance(const LLUUID& session_id);
 
@@ -117,13 +124,6 @@ public:
 	void processAgentListUpdates(const LLSD& body);
 	void processSessionUpdate(const LLSD& session_update);
 
-	/*virtual*/ BOOL handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
-									   EDragAndDropType cargo_type,
-									   void* cargo_data,
-									   EAcceptance* accept,
-									   std::string& tooltip_msg);
-
-
 	//used as a callback on receiving new IM message
 	static void sRemoveTypingIndicator(const LLSD& data);
 	static void onIMChicletCreated(const LLUUID& session_id);
@@ -189,6 +189,7 @@ private:
 	LLSD mQueuedMsgsForInit;
 
 	uuid_vec_t mInvitedParticipants;
+	uuid_vec_t mPendingParticipants;
 
 	// connection to voice channel state change signal
 	boost::signals2::connection mVoiceChannelStateChangeConnection;