From 6baa13ab7aeb7d0ee08f2460f52961dbd79bada1 Mon Sep 17 00:00:00 2001
From: Robert Adams <Robert.Adams@intel.com>
Date: Fri, 17 Feb 2012 09:12:41 -0800
Subject: [PATCH] Add new and updated script events

---
 .../Region/Framework/Scenes/EventManager.cs   | 58 ++++++++++++++++++-
 .../Framework/Scenes/Scene.Inventory.cs       | 12 ++++
 2 files changed, 67 insertions(+), 3 deletions(-)

diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index d31d380145..34d3da76ab 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -184,10 +184,62 @@ namespace OpenSim.Region.Framework.Scenes
 
         public event ClientClosed OnClientClosed;
 
+        // Fired when a script is created
+        // The indication that a new script exists in this region.
+        public delegate void NewScript(UUID clientID, SceneObjectPart part, UUID itemID);
+        public event NewScript OnNewScript;
+        public virtual void TriggerNewScript(UUID clientID, SceneObjectPart part, UUID itemID)
+        {
+            NewScript handlerNewScript = OnNewScript;
+            if (handlerNewScript != null)
+            {
+                foreach (NewScript d in handlerNewScript.GetInvocationList())
+                {
+                    try
+                    {
+                        d(clientID, part, itemID);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerNewScript failed - continuing.  {0} {1}",
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }
+
+        //TriggerUpdateScript: triggered after Scene receives client's upload of updated script and stores it as asset
+        // An indication that the script has changed.
+        public delegate void UpdateScript(UUID clientID, UUID itemId, UUID primId, bool isScriptRunning, UUID newAssetID);
+        public event UpdateScript OnUpdateScript;
+        public virtual void TriggerUpdateScript(UUID clientId, UUID itemId, UUID primId, bool isScriptRunning, UUID newAssetID)
+        {
+            UpdateScript handlerUpdateScript = OnUpdateScript;
+            if (handlerUpdateScript != null)
+            {
+                foreach (UpdateScript d in handlerUpdateScript.GetInvocationList())
+                {
+                    try
+                    {
+                        d(clientId, itemId, primId, isScriptRunning, newAssetID);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerUpdateScript failed - continuing.  {0} {1}",
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        } 
+
         /// <summary>
-        /// This is fired when a scene object property that a script might be interested in (such as color, scale or
-        /// inventory) changes.  Only enough information is sent for the LSL changed event
-        /// (see http://lslwiki.net/lslwiki/wakka.php?wakka=changed)
+        /// ScriptChangedEvent is fired when a scene object property that a script might be interested 
+        /// in (such as color, scale or inventory) changes.  Only enough information sent is for the LSL changed event.
+        /// This is not an indication that the script has changed (see OnUpdateScript for that). 
+        /// This event is sent to a script to tell it that some property changed on 
+        /// the object the script is in. See http://lslwiki.net/lslwiki/wakka.php?wakka=changed .
         /// </summary>
         public event ScriptChangedEvent OnScriptChangedEvent;
         public delegate void ScriptChangedEvent(uint localID, uint change);
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 9d9729e88e..6cc78b84b8 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -283,6 +283,10 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 remoteClient.SendAgentAlertMessage("Script saved", false);
             }
+
+            // Tell anyone managing scripts that a script has been reloaded/changed
+            EventManager.TriggerUpdateScript(remoteClient.AgentId, itemId, primId, isScriptRunning, item.AssetID);
+
             part.ParentGroup.ResumeScripts();
             return errors;
         }
@@ -1624,9 +1628,13 @@ namespace OpenSim.Region.Framework.Scenes
                     // have state in inventory
                     part.Inventory.CreateScriptInstance(copyID, 0, false, DefaultScriptEngine, 0);
 
+                    // tell anyone watching that there is a new script in town
+                    EventManager.TriggerNewScript(agentID, part, copyID);
+
                     //                        m_log.InfoFormat("[PRIMINVENTORY]: " +
                     //                                         "Rezzed script {0} into prim local ID {1} for user {2}",
                     //                                         item.inventoryName, localID, remoteClient.Name);
+
                     part.ParentGroup.ResumeScripts();
 
                     return part;
@@ -1707,6 +1715,10 @@ namespace OpenSim.Region.Framework.Scenes
 
             part.Inventory.AddInventoryItem(taskItem, false);
             part.Inventory.CreateScriptInstance(taskItem, 0, false, DefaultScriptEngine, 0);
+
+            // tell anyone managing scripts that a new script exists
+            EventManager.TriggerNewScript(agentID, part, taskItem.ItemID);
+
             part.ParentGroup.ResumeScripts();
 
             return part;