EXT-8650 Can wear multiple copies of no-copy item via object links

* EXT-8688 Automatically detach same object is detected
* EXT-8689 Cleanup detachAttachmentIntoInventory code

When an object arrives as an attachment, if it's already attached then it's automatically detached.

5 files changed, 53 insertions, 51 deletions

diff --git a/indra/newview/llappearancemgr.cpp b/indra/newview/llappearancemgr.cpp
index 6fdd71bfbf..21a635e738 100644
--- a/indra/newview/llappearancemgr.cpp
+++ b/indra/newview/llappearancemgr.cpp
@@ -2496,29 +2496,17 @@ void LLAppearanceMgr::removeItemFromAvatar(const LLUUID& id_to_remove)
 
 	switch (item_to_remove->getType())
 	{
-	case LLAssetType::AT_CLOTHING:
-		if (get_is_item_worn(id_to_remove))
-		{
-			//*TODO move here the exact removing code from LLWearableBridge::removeItemFromAvatar in the future
-			LLWearableBridge::removeItemFromAvatar(item_to_remove);
-		}
-		break;
-	case LLAssetType::AT_OBJECT:
-		gMessageSystem->newMessageFast(_PREHASH_DetachAttachmentIntoInv);
-		gMessageSystem->nextBlockFast(_PREHASH_ObjectData);
-		gMessageSystem->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
-		gMessageSystem->addUUIDFast(_PREHASH_ItemID, item_to_remove->getLinkedUUID());
-		gMessageSystem->sendReliable( gAgent.getRegion()->getHost());
-
-		{
-			// this object might have been selected, so let the selection manager know it's gone now
-			LLViewerObject *found_obj = gObjectList.findObject(item_to_remove->getLinkedUUID());
-			if (found_obj)
+		case LLAssetType::AT_CLOTHING:
+			if (get_is_item_worn(id_to_remove))
 			{
-				LLSelectMgr::getInstance()->remove(found_obj);
-			};
-		}
-	default: break;
+				//*TODO move here the exact removing code from LLWearableBridge::removeItemFromAvatar in the future
+				LLWearableBridge::removeItemFromAvatar(item_to_remove);
+			}
+			break;
+		case LLAssetType::AT_OBJECT:
+			LLVOAvatarSelf::detachAttachmentIntoInventory(item_to_remove->getLinkedUUID());
+		default:
+			break;
 	}
 
 	// *HACK: Force to remove garbage from COF.
diff --git a/indra/newview/llinventorybridge.cpp b/indra/newview/llinventorybridge.cpp
index 9bbc6514b4..66bf325f04 100644
--- a/indra/newview/llinventorybridge.cpp
+++ b/indra/newview/llinventorybridge.cpp
@@ -3957,18 +3957,7 @@ void LLObjectBridge::performAction(LLInventoryModel* model, std::string action)
 		LLInventoryItem* item = gInventory.getItem(mUUID);
 		if(item)
 		{
-			gMessageSystem->newMessageFast(_PREHASH_DetachAttachmentIntoInv);
-			gMessageSystem->nextBlockFast(_PREHASH_ObjectData);
-			gMessageSystem->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
-			gMessageSystem->addUUIDFast(_PREHASH_ItemID, item->getLinkedUUID());
-			gMessageSystem->sendReliable( gAgent.getRegion()->getHost());
-
-			// this object might have been selected, so let the selection manager know it's gone now
-			LLViewerObject *found_obj = gObjectList.findObject(item->getLinkedUUID());
-			if (found_obj)
-			{
-				LLSelectMgr::getInstance()->remove(found_obj);
-			}
+			LLVOAvatarSelf::detachAttachmentIntoInventory(item->getLinkedUUID());
 		}
 	}
 	else LLItemBridge::performAction(model, action);
@@ -4321,19 +4310,7 @@ void remove_inventory_category_from_avatar_step2( BOOL proceed, LLUUID category_
 				LLViewerInventoryItem *obj_item = obj_item_array.get(i);
 				if (get_is_item_worn(obj_item->getUUID()))
 				{
-					gMessageSystem->newMessageFast(_PREHASH_DetachAttachmentIntoInv);
-					gMessageSystem->nextBlockFast(_PREHASH_ObjectData );
-					gMessageSystem->addUUIDFast(_PREHASH_AgentID, gAgent.getID() );
-					gMessageSystem->addUUIDFast(_PREHASH_ItemID, obj_item->getLinkedUUID() );
-					
-					gMessageSystem->sendReliable( gAgent.getRegion()->getHost() );
-					
-					// this object might have been selected, so let the selection manager know it's gone now
-					LLViewerObject *found_obj = gObjectList.findObject( obj_item->getLinkedUUID());
-					if (found_obj)
-					{
-						LLSelectMgr::getInstance()->remove(found_obj);
-					}
+					LLVOAvatarSelf::detachAttachmentIntoInventory(obj_item->getLinkedUUID());
 				}
 			}
 		}
diff --git a/indra/newview/llviewerjointattachment.cpp b/indra/newview/llviewerjointattachment.cpp
index da4960b69d..c9335366cd 100644
--- a/indra/newview/llviewerjointattachment.cpp
+++ b/indra/newview/llviewerjointattachment.cpp
@@ -35,12 +35,11 @@
 #include "llviewerjointattachment.h"
 
 #include "llagentconstants.h"
-
 #include "llviewercontrol.h"
 #include "lldrawable.h"
 #include "llgl.h"
 #include "llrender.h"
-#include "llvoavatar.h"
+#include "llvoavatarself.h"
 #include "llvolume.h"
 #include "pipeline.h"
 #include "llspatialpartition.h"
@@ -164,6 +163,9 @@ void LLViewerJointAttachment::setupDrawable(LLViewerObject *object)
 //-----------------------------------------------------------------------------
 BOOL LLViewerJointAttachment::addObject(LLViewerObject* object)
 {
+	object->extractAttachmentItemID();
+
+	// Same object reattached
 	if (isObjectAttached(object))
 	{
 		llinfos << "(same object re-attached)" << llendl;
@@ -171,8 +173,19 @@ BOOL LLViewerJointAttachment::addObject(LLViewerObject* object)
 		// Pass through anyway to let setupDrawable()
 		// re-connect object to the joint correctly
 	}
+	
+	// Two instances of the same inventory item attached --
+	// Request detach, and kill the object in the meantime.
+	if (getAttachedObject(object->getAttachmentItemID()))
+	{
+		llinfos << "(same object re-attached)" << llendl;
+		object->markDead();
+
+		// If this happens to be attached to self, then detach.
+		LLVOAvatarSelf::detachAttachmentIntoInventory(object->getAttachmentItemID());
+		return FALSE;
+	}
 
-	object->extractAttachmentItemID();
 	mAttachedObjects.push_back(object);
 	setupDrawable(object);
 	
@@ -195,7 +208,7 @@ BOOL LLViewerJointAttachment::addObject(LLViewerObject* object)
 	}
 	calcLOD();
 	mUpdateXform = TRUE;
-
+	
 	return TRUE;
 }
 
diff --git a/indra/newview/llvoavatarself.cpp b/indra/newview/llvoavatarself.cpp
index 73ea629bc3..09e50dcb90 100644
--- a/indra/newview/llvoavatarself.cpp
+++ b/indra/newview/llvoavatarself.cpp
@@ -1115,6 +1115,29 @@ BOOL LLVOAvatarSelf::detachObject(LLViewerObject *viewer_object)
 	return FALSE;
 }
 
+// static
+BOOL LLVOAvatarSelf::detachAttachmentIntoInventory(const LLUUID &item_id)
+{
+	LLInventoryItem* item = gInventory.getItem(item_id);
+	if (item)
+	{
+		gMessageSystem->newMessageFast(_PREHASH_DetachAttachmentIntoInv);
+		gMessageSystem->nextBlockFast(_PREHASH_ObjectData);
+		gMessageSystem->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
+		gMessageSystem->addUUIDFast(_PREHASH_ItemID, item_id);
+		gMessageSystem->sendReliable(gAgent.getRegion()->getHost());
+		
+		// this object might have been selected, so let the selection manager know it's gone now
+		LLViewerObject *found_obj = gObjectList.findObject(item_id);
+		if (found_obj)
+		{
+			LLSelectMgr::getInstance()->remove(found_obj);
+		}
+		return TRUE;
+	}
+	return FALSE;
+}
+
 U32 LLVOAvatarSelf::getNumWearables(LLVOAvatarDefines::ETextureIndex i) const
 {
 	LLWearableType::EType type = LLVOAvatarDictionary::getInstance()->getTEWearableType(i);
diff --git a/indra/newview/llvoavatarself.h b/indra/newview/llvoavatarself.h
index 630afe7a0f..37d24d138f 100644
--- a/indra/newview/llvoavatarself.h
+++ b/indra/newview/llvoavatarself.h
@@ -295,6 +295,7 @@ public:
 	const std::string   getAttachedPointName(const LLUUID& inv_item_id) const;
 	/*virtual*/ const LLViewerJointAttachment *attachObject(LLViewerObject *viewer_object);
 	/*virtual*/ BOOL 	detachObject(LLViewerObject *viewer_object);
+	static BOOL			detachAttachmentIntoInventory(const LLUUID& item_id);
 
 	//--------------------------------------------------------------------
 	// HUDs