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/**
* @file llworldmapmessage.h
* @brief Handling of the messages to the DB made by and for the world map.
*
* $LicenseInfo:firstyear=2003&license=viewerlgpl$
* 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
* $/LicenseInfo$
*/
#ifndef LL_LLWORLDMAPMESSAGE_H
#define LL_LLWORLDMAPMESSAGE_H
#include "boost/function.hpp"
// Handling of messages (send and process) as well as SLURL callback if necessary
class LLMessageSystem;
class LLWorldMapMessage : public LLSingleton<LLWorldMapMessage>
{
public:
typedef boost::function<void(U64 region_handle, const std::string& url, const LLUUID& snapshot_id, bool teleport)>
url_callback_t;
LLWorldMapMessage();
~LLWorldMapMessage();
// Process incoming answers to map stuff requests
static void processMapBlockReply(LLMessageSystem*, void**);
static void processMapItemReply(LLMessageSystem*, void**);
// Request data for all regions in a rectangular area. Coordinates in grids (i.e. meters / 256).
void sendMapBlockRequest(U16 min_x, U16 min_y, U16 max_x, U16 max_y, bool return_nonexistent = false);
// Various methods to request LLSimInfo data to the simulator and asset DB
void sendNamedRegionRequest(std::string region_name);
void sendNamedRegionRequest(std::string region_name,
url_callback_t callback,
const std::string& callback_url,
bool teleport);
void sendHandleRegionRequest(U64 region_handle,
url_callback_t callback,
const std::string& callback_url,
bool teleport);
// Request item data for regions
// Note: the handle works *only* when requesting agent count (type = MAP_ITEM_AGENT_LOCATIONS). In that case,
// the request will actually be transitting through the spaceserver (all that is done on the sim).
// All other values of type do create a global grid request to the asset DB. So no need to try to get, say,
// the events for one particular region. For such a request, the handle is ignored.
void sendItemRequest(U32 type, U64 handle = 0);
private:
// Search for region (by name or handle) for SLURL processing and teleport
// None of this relies explicitly on the LLWorldMap instance so better handle it here
std::string mSLURLRegionName;
U64 mSLURLRegionHandle;
std::string mSLURL;
url_callback_t mSLURLCallback;
bool mSLURLTeleport;
};
#endif // LL_LLWORLDMAPMESSAGE_H
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