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/**
* @file llsearchhistory.h
* @brief Search history container definition
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* 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_LLSEARCHHISTORY_H
#define LL_LLSEARCHHISTORY_H
#include "llsingleton.h"
#include "llinitdestroyclass.h"
#include "llui.h"
/**
* Search history container able to save and load history from file.
* History is stored in chronological order, most recent at the beginning.
*/
class LLSearchHistory : public LLSingleton<LLSearchHistory>, private LLDestroyClass<LLSearchHistory>
{
friend class LLDestroyClass<LLSearchHistory>;
public:
// Forward declaration
class LLSearchHistoryItem;
// Search history container
typedef std::list<LLSearchHistoryItem> search_history_list_t;
/**
* Saves search history to file
*/
bool save();
/**
* loads search history from file
*/
bool load();
/**
* Returns search history list
*/
search_history_list_t& getSearchHistoryList() { return mSearchHistory; }
/**
* Deletes all search history queries from list.
*/
void clearHistory() { mSearchHistory.clear(); }
/**
* Adds unique entry to front of search history list, case insensitive
* If entry is already in list, it will be deleted and added to front.
*/
void addEntry(const std::string& search_text);
LLSearchHistory();
/**
* Class for storing data about single search request.
*/
class LLSearchHistoryItem
{
public:
LLSearchHistoryItem()
{}
LLSearchHistoryItem(const std::string& query)
: search_query(query)
{}
LLSearchHistoryItem(const LLSD& item)
{
if(item.has(SEARCH_QUERY))
search_query = item[SEARCH_QUERY].asString();
}
std::string search_query;
/**
* Allows std::list sorting
*/
bool operator < (const LLSearchHistory::LLSearchHistoryItem& right);
/**
* Allows std::list sorting
*/
bool operator > (const LLSearchHistory::LLSearchHistoryItem& right);
bool operator==(const LLSearchHistoryItem& right);
bool operator==(const std::string& right);
/**
* Serializes search history item to LLSD
*/
LLSD toLLSD() const;
};
protected:
/**
* Returns path to search history file.
*/
std::string getHistoryFilePath();
static std::string SEARCH_HISTORY_FILE_NAME;
static std::string SEARCH_QUERY;
private:
// Implementation of LLDestroyClass<LLSearchHistory>
static void destroyClass()
{
LLSearchHistory::getInstance()->save();
}
search_history_list_t mSearchHistory;
};
class LLSearchComboBox;
#endif //LL_LLSEARCHHISTORY_H
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