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/**
* @file lllocationhistory.cpp
* @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
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "lllocationhistory.h"
#include <iomanip> // for std::setw()
#include "llui.h"
#include "llsd.h"
#include "llsdserialize.h"
LLLocationHistory::LLLocationHistory() :
mFilename("typed_locations.txt")
{
}
void LLLocationHistory::addItem(const LLLocationHistoryItem& item) {
static LLUICachedControl<S32> max_items("LocationHistoryMaxSize", 100);
// check if this item doesn't duplicate any existing one
location_list_t::iterator item_iter = std::find(mItems.begin(), mItems.end(),item);
if(item_iter != mItems.end()) // if it already exists, erase the old one
{
mItems.erase(item_iter);
}
mItems.push_back(item);
// If the vector size exceeds the maximum, purge the oldest items (at the start of the mItems vector).
if ((S32)mItems.size() > max_items)
{
mItems.erase(mItems.begin(), mItems.end()-max_items);
}
llassert((S32)mItems.size() <= max_items);
mChangedSignal(ADD);
}
/*
* @brief Try to find item in history.
* If item has been founded, it will be places into end of history.
* @return true - item has founded
*/
bool LLLocationHistory::touchItem(const LLLocationHistoryItem& item) {
bool result = false;
location_list_t::iterator item_iter = std::find(mItems.begin(), mItems.end(), item);
// the last used item should be the first in the history
if (item_iter != mItems.end()) {
mItems.erase(item_iter);
mItems.push_back(item);
result = true;
}
return result;
}
void LLLocationHistory::removeItems()
{
mItems.clear();
mChangedSignal(CLEAR);
}
bool LLLocationHistory::getMatchingItems(const std::string& substring, location_list_t& result) const
{
// *TODO: an STL algorithm would look nicer
result.clear();
std::string needle = substring;
LLStringUtil::toLower(needle);
for (location_list_t::const_iterator it = mItems.begin(); it != mItems.end(); ++it)
{
std::string haystack = it->getLocation();
LLStringUtil::toLower(haystack);
if (haystack.find(needle) != std::string::npos)
result.push_back(*it);
}
return result.size();
}
void LLLocationHistory::dump() const
{
LL_INFOS() << "Location history dump:" << LL_ENDL;
int i = 0;
for (location_list_t::const_iterator it = mItems.begin(); it != mItems.end(); ++it, ++i)
{
LL_INFOS() << "#" << std::setw(2) << std::setfill('0') << i << ": " << it->getLocation() << LL_ENDL;
}
}
void LLLocationHistory::save() const
{
// build filename for each user
std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename);
if (resolved_filename.empty())
{
LL_INFOS() << "can't get path to location history filename - probably not logged in yet." << LL_ENDL;
return;
}
// open a file for writing
llofstream file(resolved_filename.c_str());
if (!file.is_open())
{
LL_WARNS() << "can't open location history file \"" << mFilename << "\" for writing" << LL_ENDL;
return;
}
for (location_list_t::const_iterator it = mItems.begin(); it != mItems.end(); ++it)
{
file << LLSDOStreamer<LLSDNotationFormatter>((*it).toLLSD()) << std::endl;
}
file.close();
}
void LLLocationHistory::load()
{
LL_INFOS() << "Loading location history." << LL_ENDL;
// build filename for each user
std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename);
llifstream file(resolved_filename.c_str());
if (!file.is_open())
{
LL_WARNS() << "can't load location history from file \"" << mFilename << "\"" << LL_ENDL;
return;
}
mItems.clear();// need to use a direct call of clear() method to avoid signal invocation
// add each line in the file to the list
std::string line;
LLPointer<LLSDParser> parser = new LLSDNotationParser();
while (std::getline(file, line)) {
LLSD s_item;
std::istringstream iss(line);
if (parser->parse(iss, s_item, line.length()) == LLSDParser::PARSE_FAILURE)
{
LL_INFOS()<< "Parsing saved teleport history failed" << LL_ENDL;
break;
}
mItems.push_back(s_item);
}
file.close();
mChangedSignal(LOAD);
}
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