From: Chris Yeoh <cyeoh@au1.ibm.com>

The attached patch implements llPassTouches. It has been added
to the export/import XML along with the flag for AllowedInventoryDrop.

The MySQL backend has been updated as well, though I haven't
done one of those before so could do with a check. I added
the migration mysql file as well.

The other data backends need updating as well.

OpenSim/Data/MySQL/MySQLRegionData.cs

@@ -196,6 +196,7 @@ namespace OpenSim.Data.MySQL
                             "ColorR, ColorG, ColorB, ColorA, "+
                             "ParticleSystem, ClickAction, Material, "+
                             "CollisionSound, CollisionSoundVolume, "+
+                            "PassTouches, "+
                             "LinkNumber) values (" + "?UUID, "+
                             "?CreationDate, ?Name, ?Text, "+
                             "?Description, ?SitName, ?TouchName, "+
@@ -227,7 +228,7 @@ namespace OpenSim.Data.MySQL
                             "?SaleType, ?ColorR, ?ColorG, "+
                             "?ColorB, ?ColorA, ?ParticleSystem, "+
                             "?ClickAction, ?Material, ?CollisionSound, "+
-                            "?CollisionSoundVolume, ?LinkNumber)";
+                            "?CollisionSoundVolume, ?PassTouches, ?LinkNumber)";
 
                     FillPrimCommand(cmd, prim, obj.UUID, regionUUID);
 
@@ -950,6 +951,9 @@ namespace OpenSim.Data.MySQL
 
             prim.CollisionSound = new UUID(row["CollisionSound"].ToString());
             prim.CollisionSoundVolume = Convert.ToSingle(row["CollisionSoundVolume"]);
+            
+            if (Convert.ToInt16(row["PassTouches"]) != 0)
+                prim.PassTouches = true;
             prim.LinkNum = Convert.ToInt32(row["LinkNumber"]);
 
             return prim;
@@ -1272,6 +1276,12 @@ namespace OpenSim.Data.MySQL
 
             cmd.Parameters.AddWithValue("CollisionSound", prim.CollisionSound.ToString());
             cmd.Parameters.AddWithValue("CollisionSoundVolume", prim.CollisionSoundVolume);
+
+            if (prim.PassTouches)
+                cmd.Parameters.AddWithValue("PassTouches", 1);
+            else
+                cmd.Parameters.AddWithValue("PassTouches", 0);
+
             cmd.Parameters.AddWithValue("LinkNumber", prim.LinkNum);
         }
 
@@ -1534,4 +1544,4 @@ namespace OpenSim.Data.MySQL
             }
         }
     }
-}
+}

OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs

@@ -251,10 +251,16 @@ namespace OpenSim.Region.Framework.Scenes
 
                             // If the touched prim handles touches, deliver it
                             // If not, deliver to root prim
-                            if ((part.ScriptEvents & scriptEvents.touch_start) != 0)
+                            if ((part.ScriptEvents & scriptEvents.touch_start) != 0) 
                                 EventManager.TriggerObjectGrab(part.LocalId, 0, part.OffsetPosition, remoteClient, surfaceArg);
-                            else
+                            // Deliver to the root prim if the touched prim doesn't handle touches
+                            // or if we're meant to pass on touches anyway. Don't send to root prim
+                            // if prim touched is the root prim as we just did it
+                            if (((part.ScriptEvents & scriptEvents.touch_start) == 0) ||
+                                (part.PassTouches && (part.LocalId != obj.RootPart.LocalId))) 
+                            {
                                 EventManager.TriggerObjectGrab(obj.RootPart.LocalId, part.LocalId, part.OffsetPosition, remoteClient, surfaceArg);
+                            }
 
                             return;
                         }

OpenSim/Region/Framework/Scenes/SceneObjectPart.cs

@@ -102,7 +102,6 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Fields
 
-        [XmlIgnore]
         public bool AllowedDrop = false;
 
         [XmlIgnore]
@@ -216,6 +215,9 @@ namespace OpenSim.Region.Framework.Scenes
         private readonly UndoStack<UndoState> m_undo = new UndoStack<UndoState>(5);
         private UUID _creatorID;
 
+
+        private bool m_passTouches = false;
+
         /// <summary>
         /// Only used internally to schedule client updates.
         /// 0 - no update is scheduled
@@ -431,6 +433,17 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public bool PassTouches
+        {
+            get { return m_passTouches; }
+            set
+            {
+                m_passTouches = value;
+                if (ParentGroup != null)
+                    ParentGroup.HasGroupChanged = true;
+            }
+        }
+
         public ulong RegionHandle
         {
             get { return m_regionHandle; }

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -3705,7 +3705,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llPassTouches(int pass)
         {
             m_host.AddScriptLPS(1);
-            NotImplemented("llPassTouches");
+            if (pass != 0) 
+                m_host.PassTouches = true;
+            else 
+                m_host.PassTouches = false;
         }
 
         public LSL_String llRequestAgentData(string id, int data)