/** * @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 { llinfos << "Location history dump:" << llendl; int i = 0; for (location_list_t::const_iterator it = mItems.begin(); it != mItems.end(); ++it, ++i) { llinfos << "#" << std::setw(2) << std::setfill('0') << i << ": " << it->getLocation() << llendl; } } 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()) { llinfos << "can't get path to location history filename - probably not logged in yet." << llendl; return; } // open a file for writing llofstream file (resolved_filename); if (!file.is_open()) { llwarns << "can't open location history file \"" << mFilename << "\" for writing" << llendl; 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() { llinfos << "Loading location history." << llendl; // build filename for each user std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename); llifstream file(resolved_filename); if (!file.is_open()) { llwarns << "can't load location history from file \"" << mFilename << "\"" << llendl; 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) { llinfos<< "Parsing saved teleport history failed" << llendl; break; } mItems.push_back(s_item); } file.close(); mChangedSignal(LOAD); }