7 files changed, 246 insertions, 9 deletions

diff --git a/OpenSim/Region/Framework/Interfaces/IMoapModule.cs b/OpenSim/Region/Framework/Interfaces/IMoapModule.cs
new file mode 100644
index 0000000..24b6860
--- /dev/null
+++ b/OpenSim/Region/Framework/Interfaces/IMoapModule.cs
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using OpenMetaverse;
+using OpenSim.Region.Framework.Scenes;
+
+namespace OpenSim.Region.Framework.Interfaces
+{
+    /// <summary>
+    /// Provides methods from manipulating media-on-a-prim
+    /// </summary>
+    public interface IMoapModule
+    {
+        /// <summary>
+        /// Get the media entry for a given prim face.
+        /// </summary>
+        /// A copy of the media entry is returned rather than the original, so this can be altered at will without
+        /// affecting the original settings.
+        /// <param name="part"></param>
+        /// <param name="face"></param>
+        /// <returns></returns>
+        MediaEntry GetMediaEntry(SceneObjectPart part, int face);
+        
+        /// <summary>
+        /// Set the media entry for a given prim face.
+        /// </summary>
+        /// <param name="SceneObjectPart"></param>
+        /// <param name="face"></param>
+        /// <param name="me"></param>
+        void SetMediaEntry(SceneObjectPart part, int face, MediaEntry me);
+        
+        /// <summary>
+        /// Clear the media entry for a given prim face.
+        /// </summary>
+        /// 
+        /// This is the equivalent of setting a media entry of null
+        /// 
+        /// <param name="part"></param>
+        /// <param name="face">/param>
+        void ClearMediaEntry(SceneObjectPart part, int face);
+    }        
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index e060c05..52e6e92 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -334,10 +334,38 @@ namespace OpenSim.Region.Framework.Scenes
         /// If the object is being attached, then the avatarID will be present.  If the object is being detached then
         /// the avatarID is UUID.Zero (I know, this doesn't make much sense but now it's historical).
         public delegate void Attach(uint localID, UUID itemID, UUID avatarID);
-        public event Attach OnAttach;
+        public event Attach OnAttach;                
+        
+        /// <summary>
+        /// Called immediately after an object is loaded from storage.
+        /// </summary>
+        public event SceneObjectDelegate OnSceneObjectLoaded;
+        public delegate void SceneObjectDelegate(SceneObjectGroup so);
+        
+        /// <summary>
+        /// Called immediately before an object is saved to storage.
+        /// </summary>
+        /// <param name="persistingSo">
+        /// The scene object being persisted.  
+        /// This is actually a copy of the original scene object so changes made here will be saved to storage but will not be kept in memory.
+        /// </param>
+        /// <param name="originalSo">
+        /// The original scene object being persisted.  Changes here will stay in memory but will not be saved to storage on this save.
+        /// </param>
+        public event SceneObjectPreSaveDelegate OnSceneObjectPreSave;
+        public delegate void SceneObjectPreSaveDelegate(SceneObjectGroup persistingSo, SceneObjectGroup originalSo);
+        
+        /// <summary>
+        /// Called when a scene object part is cloned within the region.
+        /// </summary>
+        /// <param name="copy"></param>
+        /// <param name="original"></param>
+        /// <param name="userExposed">True if the duplicate will immediately be in the scene, false otherwise</param>
+        public event SceneObjectPartCopyDelegate OnSceneObjectPartCopy;
+        public delegate void SceneObjectPartCopyDelegate(SceneObjectPart copy, SceneObjectPart original, bool userExposed);
 
         public delegate void RegionUp(GridRegion region);
-        public event RegionUp OnRegionUp;
+        public event RegionUp OnRegionUp;       
 
         public class MoneyTransferArgs : EventArgs
         {
@@ -2037,5 +2065,68 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
         }
+        
+        public void TriggerOnSceneObjectLoaded(SceneObjectGroup so)
+        {
+            SceneObjectDelegate handler = OnSceneObjectLoaded;
+            if (handler != null)
+            {
+                foreach (SceneObjectDelegate d in handler.GetInvocationList())
+                {
+                    try
+                    {
+                        d(so);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerOnSceneObjectLoaded failed - continuing.  {0} {1}", 
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }  
+        
+        public void TriggerOnSceneObjectPreSave(SceneObjectGroup persistingSo, SceneObjectGroup originalSo)
+        {
+            SceneObjectPreSaveDelegate handler = OnSceneObjectPreSave;
+            if (handler != null)
+            {
+                foreach (SceneObjectPreSaveDelegate d in handler.GetInvocationList())
+                {
+                    try
+                    {
+                        d(persistingSo, originalSo);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerOnSceneObjectPreSave failed - continuing.  {0} {1}", 
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        } 
+        
+        public void TriggerOnSceneObjectPartCopy(SceneObjectPart copy, SceneObjectPart original, bool userExposed)
+        {
+            SceneObjectPartCopyDelegate handler = OnSceneObjectPartCopy;
+            if (handler != null)
+            {
+                foreach (SceneObjectPartCopyDelegate d in handler.GetInvocationList())
+                {
+                    try
+                    {
+                        d(copy, original, userExposed);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerOnSceneObjectPartCopy failed - continuing.  {0} {1}", 
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }   
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs b/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
index a523351..4e80bf2 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -82,6 +82,8 @@ namespace OpenSim.Region.Framework.Scenes
     public delegate bool CopyUserInventoryHandler(UUID itemID, UUID userID);
     public delegate bool DeleteUserInventoryHandler(UUID itemID, UUID userID);
     public delegate bool TeleportHandler(UUID userID, Scene scene);
+    public delegate bool ControlPrimMediaHandler(UUID userID, UUID primID, int face);
+    public delegate bool InteractWithPrimMediaHandler(UUID userID, UUID primID, int face);
     #endregion
 
     public class ScenePermissions
@@ -141,6 +143,8 @@ namespace OpenSim.Region.Framework.Scenes
         public event CopyUserInventoryHandler OnCopyUserInventory;
         public event DeleteUserInventoryHandler OnDeleteUserInventory;
         public event TeleportHandler OnTeleport;
+        public event ControlPrimMediaHandler OnControlPrimMedia;
+        public event InteractWithPrimMediaHandler OnInteractWithPrimMedia;
         #endregion
 
         #region Object Permission Checks
@@ -964,5 +968,35 @@ namespace OpenSim.Region.Framework.Scenes
             }
             return true;
         }
+        
+        public bool CanControlPrimMedia(UUID userID, UUID primID, int face)
+        {
+            ControlPrimMediaHandler handler = OnControlPrimMedia;
+            if (handler != null)
+            {
+                Delegate[] list = handler.GetInvocationList();
+                foreach (ControlPrimMediaHandler h in list)
+                {
+                    if (h(userID, primID, face) == false)
+                        return false;
+                }
+            }
+            return true;
+        } 
+        
+        public bool CanInteractWithPrimMedia(UUID userID, UUID primID, int face)
+        {
+            InteractWithPrimMediaHandler handler = OnInteractWithPrimMedia;
+            if (handler != null)
+            {
+                Delegate[] list = handler.GetInvocationList();
+                foreach (InteractWithPrimMediaHandler h in list)
+                {
+                    if (h(userID, primID, face) == false)
+                        return false;
+                }
+            }
+            return true;
+        }    
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 644fbb0..d55c7a1 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1918,9 +1918,11 @@ namespace OpenSim.Region.Framework.Scenes
 
             foreach (SceneObjectGroup group in PrimsFromDB)
             {
+                EventManager.TriggerOnSceneObjectLoaded(group);
+                
                 if (group.RootPart == null)
                 {
-                    m_log.ErrorFormat("[SCENE] Found a SceneObjectGroup with m_rootPart == null and {0} children",
+                    m_log.ErrorFormat("[SCENE]: Found a SceneObjectGroup with m_rootPart == null and {0} children",
                                       group.Children == null ? 0 : group.Children.Count);
                 }
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index 5a3dc20..8ce79a2 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -1745,6 +1745,7 @@ namespace OpenSim.Region.Framework.Scenes
                         backup_group.RootPart.ParticleSystem = RootPart.ParticleSystem;
                         HasGroupChanged = false;
 
+                        m_scene.EventManager.TriggerOnSceneObjectPreSave(backup_group, this);
                         datastore.StoreObject(backup_group, m_scene.RegionInfo.RegionID);
 
                         backup_group.ForEachPart(delegate(SceneObjectPart part) 
@@ -1795,6 +1796,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Duplicates this object, including operations such as physics set up and attaching to the backup event.
         /// </summary>
+        /// <param name="userExposed">True if the duplicate will immediately be in the scene, false otherwise</param>
         /// <returns></returns>
         public SceneObjectGroup Copy(bool userExposed)
         {
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index badd357..efdc19c 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -59,6 +59,7 @@ namespace OpenSim.Region.Framework.Scenes
         REGION = 256,
         TELEPORT = 512,
         REGION_RESTART = 1024,
+        MEDIA = 2048,
         ANIMATION = 16384
     }
 
@@ -330,6 +331,11 @@ namespace OpenSim.Region.Framework.Scenes
         protected Vector3 m_lastAcceleration;
         protected Vector3 m_lastAngularVelocity;
         protected int m_lastTerseSent;
+        
+        /// <summary>
+        /// Stores media texture data
+        /// </summary>
+        protected string m_mediaUrl;
 
         // TODO: Those have to be changed into persistent properties at some later point,
         // or sit-camera on vehicles will break on sim-crossing.
@@ -984,18 +990,39 @@ namespace OpenSim.Region.Framework.Scenes
                 TriggerScriptChangedEvent(Changed.SCALE);
             }
         }
+        
         public byte UpdateFlag
         {
             get { return m_updateFlag; }
             set { m_updateFlag = value; }
         }
+        
+        /// <summary>
+        /// Used for media on a prim.
+        /// </summary>
+        /// Do not change this value directly - always do it through an IMoapModule.
+        public string MediaUrl 
+        { 
+            get
+            {
+                return m_mediaUrl; 
+            }
+            
+            set               
+            {   
+                m_mediaUrl = value;
+                
+                if (ParentGroup != null)
+                    ParentGroup.HasGroupChanged = true;        
+            }
+        }
 
         [XmlIgnore]
         public bool CreateSelected
         {
             get { return m_createSelected; }
             set { m_createSelected = value; }
-        }
+        }                
 
         #endregion
 
@@ -1553,6 +1580,11 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Duplicates this part.
         /// </summary>
+        /// <param name="localID"></param>
+        /// <param name="AgentID"></param>
+        /// <param name="GroupID"></param>
+        /// <param name="linkNum"></param>
+        /// <param name="userExposed">True if the duplicate will immediately be in the scene, false otherwise</param>
         /// <returns></returns>
         public SceneObjectPart Copy(uint localID, UUID AgentID, UUID GroupID, int linkNum, bool userExposed)
         {
@@ -1616,7 +1648,11 @@ namespace OpenSim.Region.Framework.Scenes
                 dupe.DoPhysicsPropertyUpdate(UsePhysics, true);
             }
             
-            return dupe;
+            ParentGroup.Scene.EventManager.TriggerOnSceneObjectPartCopy(dupe, this, userExposed);
+
+//            m_log.DebugFormat("[SCENE OBJECT PART]: Clone of {0} {1} finished", Name, UUID);
+                          
+            return dupe;            
         }
 
         protected void AssetReceived(string id, Object sender, AssetBase asset)
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 44c3d12..b3fa2f4 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1059,7 +1059,12 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void MakeChildAgent()
         {
-            Animator.ResetAnimations();
+            // It looks like m_animator is set to null somewhere, and MakeChild
+            // is called after that. Probably in aborted teleports.
+            if (m_animator == null)
+                m_animator = new ScenePresenceAnimator(this);
+            else
+                Animator.ResetAnimations();
 
 //            m_log.DebugFormat(
 //                 "[SCENEPRESENCE]: Downgrading root agent {0}, {1} to a child agent in {2}",