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/**
* @file llocationhistory.h
* @brief Typed locations history
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* 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_LLLOCATIONHISTORY_H
#define LL_LLLOCATIONHISTORY_H
#include "llsingleton.h" // for LLSingleton
#include <vector>
#include <string>
#include <map>
#include <boost/function.hpp>
#include <boost/signals2.hpp>
class LLSD;
/**
* This enum is responsible for identifying of history item.
*/
enum ELocationType {
TYPED_REGION_SLURL//item added after the user had typed a region name or slurl
,LANDMARK // item has been loaded from landmark folder
,TELEPORT_HISTORY // item from session teleport history
};
class LLLocationHistoryItem {
public:
LLLocationHistoryItem(){}
LLLocationHistoryItem(std::string typed_location,
LLVector3d global_position, std::string tooltip,ELocationType type ):
mLocation(typed_location),
mGlobalPos(global_position),
mToolTip(tooltip),
mType(type)
{}
LLLocationHistoryItem(const LLLocationHistoryItem& item):
mGlobalPos(item.mGlobalPos),
mToolTip(item.mToolTip),
mLocation(item.mLocation),
mType(item.mType)
{}
LLLocationHistoryItem(const LLSD& data):
mLocation(data["location"]),
mGlobalPos(data["global_pos"]),
mToolTip(data["tooltip"]),
mType(ELocationType(data["item_type"].asInteger()))
{}
bool operator==(const LLLocationHistoryItem& item)
{
// do not compare mGlobalPos,
// because of a rounding off , the history can contain duplicates
return mLocation == item.mLocation && (mType == item.mType);
}
bool operator!=(const LLLocationHistoryItem& item)
{
return ! (*this == item);
}
LLSD toLLSD() const
{
LLSD val;
val["location"]= mLocation;
val["global_pos"] = mGlobalPos.getValue();
val["tooltip"] = mToolTip;
val["item_type"] = mType;
return val;
}
const std::string& getLocation() const { return mLocation; };
const std::string& getToolTip() const { return mToolTip; };
//static bool equalByRegionParcel(const LLLocationHistoryItem& item1, const LLLocationHistoryItem& item2);
static bool equalByLocation(const LLLocationHistoryItem& item1, const std::string& item_location)
{
return item1.getLocation() == item_location;
}
LLVector3d mGlobalPos; // global position
std::string mToolTip;// SURL
std::string mLocation;// typed_location
ELocationType mType;
};
class LLLocationHistory: public LLSingleton<LLLocationHistory>
{
LLSINGLETON(LLLocationHistory);
LOG_CLASS(LLLocationHistory);
public:
enum EChangeType
{
ADD
,CLEAR
,LOAD
};
typedef std::vector<LLLocationHistoryItem> location_list_t;
typedef boost::function<void(EChangeType event)> history_changed_callback_t;
typedef boost::signals2::signal<void(EChangeType event)> history_changed_signal_t;
void addItem(const LLLocationHistoryItem& item);
bool touchItem(const LLLocationHistoryItem& item);
void removeItems();
size_t getItemCount() const { return mItems.size(); }
const location_list_t& getItems() const { return mItems; }
bool getMatchingItems(const std::string& substring, location_list_t& result) const;
boost::signals2::connection setChangedCallback(history_changed_callback_t cb) { return mChangedSignal.connect(cb); }
void save() const;
void load();
void dump() const;
private:
location_list_t mItems;
std::string mFilename; /// File to store the history to.
history_changed_signal_t mChangedSignal;
};
#endif
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