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/**
* @file llvoinventorylistener.h
* @brief Interface for classes that wish to receive updates about viewer object inventory
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
// Description of LLVOInventoryListener class, which is an interface
// for windows that are interested in updates to a ViewerObject's inventory.
#ifndef LL_LLVOINVENTORYLISTENER_H
#define LL_LLVOINVENTORYLISTENER_H
#include "llinventory.h"
class LLViewerObject;
class LLVOInventoryListener
{
public:
virtual void inventoryChanged(LLViewerObject* object,
LLInventoryObject::object_list_t* inventory,
S32 serial_num,
void* user_data) = 0;
// Remove the listener from the object and clear this listener
void removeVOInventoryListener();
// Just clear this listener, don't worry about the object.
void clearVOInventoryListener();
protected:
LLVOInventoryListener() : mListenerVObject(NULL) { }
virtual ~LLVOInventoryListener() { removeVOInventoryListener(); }
void registerVOInventoryListener(LLViewerObject* object, void* user_data);
void requestVOInventory();
private:
// LLViewerObject is normally wrapped by an LLPointer, but not in
// this case, because it's already sure to be kept alive by
// LLPointers held by other objects that have longer lifetimes
// than this one. Plumbing correct LLPointer usage all the way
// down here has been deemed too much work for now.
LLViewerObject *mListenerVObject;
};
#endif
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