307 lines
8.6 KiB
C++
307 lines
8.6 KiB
C++
/**
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* @file llteleporthistorystorage.cpp
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* @brief Teleport history
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*
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* $LicenseInfo:firstyear=2009&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "llviewerprecompiledheaders.h"
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#include "llteleporthistorystorage.h"
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#include "llsd.h"
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#include "llsdserialize.h"
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#include "lldir.h"
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#include "llteleporthistory.h"
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#include "llagent.h"
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#include "llfloaterreg.h"
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#include "llfloaterworldmap.h"
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// [RLVa:KB] - Checked: 2010-09-03 (RLVa-1.2.1b)
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#include "rlvactions.h"
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// [/RLVa:KB]
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// Max offset for two global positions to consider them as equal
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const F64 MAX_GLOBAL_POS_OFFSET = 5.0f;
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LLTeleportHistoryPersistentItem::LLTeleportHistoryPersistentItem(const LLSD& val)
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{
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mTitle = val["title"].asString();
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mGlobalPos.setValue(val["global_pos"]);
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mDate = val["date"];
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}
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LLSD LLTeleportHistoryPersistentItem::toLLSD() const
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{
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LLSD val;
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val["title"] = mTitle;
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val["global_pos"] = mGlobalPos.getValue();
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val["date"] = mDate;
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return val;
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}
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struct LLSortItemsByDate
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{
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bool operator()(const LLTeleportHistoryPersistentItem& a, const LLTeleportHistoryPersistentItem& b)
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{
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return a.mDate < b.mDate;
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}
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};
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LLTeleportHistoryStorage::LLTeleportHistoryStorage() :
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mFilename("teleport_history.txt")
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{
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mItems.clear();
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LLTeleportHistory *th = LLTeleportHistory::getInstance();
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if (th)
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th->setHistoryChangedCallback(boost::bind(&LLTeleportHistoryStorage::onTeleportHistoryChange, this));
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load();
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}
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LLTeleportHistoryStorage::~LLTeleportHistoryStorage()
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{
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}
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void LLTeleportHistoryStorage::onTeleportHistoryChange()
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{
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LLTeleportHistory *th = LLTeleportHistory::getInstance();
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if (!th)
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return;
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// Hacky sanity check. (EXT-6798)
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if (th->getItems().size() == 0)
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{
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llassert(!"Inconsistent teleport history state");
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return;
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}
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const LLTeleportHistoryItem &item = th->getItems()[th->getCurrentItemIndex()];
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// [RLVa:KB] - Checked: 2010-09-03 (RLVa-1.2.1b) | Added: RLVa-1.2.1b
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// Make sure we don't attempt to save zero'ed out teleport history items
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if (item.mGlobalPos.isExactlyZero())
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{
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return;
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}
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// [/RLVa:KB]
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addItem(item.mTitle, item.mGlobalPos);
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save();
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}
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void LLTeleportHistoryStorage::purgeItems()
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{
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mItems.clear();
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mHistoryChangedSignal(-1);
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}
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void LLTeleportHistoryStorage::addItem(const std::string title, const LLVector3d& global_pos)
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{
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addItem(title, global_pos, LLDate::now());
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}
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bool LLTeleportHistoryStorage::compareByTitleAndGlobalPos(const LLTeleportHistoryPersistentItem& a, const LLTeleportHistoryPersistentItem& b)
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{
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return a.mTitle == b.mTitle && (a.mGlobalPos - b.mGlobalPos).length() < MAX_GLOBAL_POS_OFFSET;
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}
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void LLTeleportHistoryStorage::addItem(const std::string title, const LLVector3d& global_pos, const LLDate& date)
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{
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// [RLVa:KB] - Checked: 2010-09-03 (RLVa-1.2.1b) | Added: RLVa-1.2.1b
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if (!RlvActions::canShowLocation())
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{
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return;
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}
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// [/RLVa:KB]
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LLTeleportHistoryPersistentItem item(title, global_pos, date);
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slurl_list_t::iterator item_iter = std::find_if(mItems.begin(), mItems.end(),
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boost::bind(&LLTeleportHistoryStorage::compareByTitleAndGlobalPos, this, _1, item));
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// If there is such item already, remove it, since new item is more recent
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S32 removed_index = -1;
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if (item_iter != mItems.end())
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{
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// When teleporting via history it's possible that there can be
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// an offset applied to the position, so each new teleport can
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// be a meter higher than the last.
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// Avoid it by preserving original position.
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item.mGlobalPos = item_iter->mGlobalPos;
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removed_index = (S32)(item_iter - mItems.begin());
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mItems.erase(item_iter);
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}
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mItems.push_back(item);
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// Check whether sorting is needed
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if (mItems.size() > 1)
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{
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item_iter = mItems.end();
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item_iter--;
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item_iter--;
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// If second to last item is more recent than last, then resort items
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if (item_iter->mDate > item.mDate)
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{
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removed_index = -1;
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std::sort(mItems.begin(), mItems.end(), LLSortItemsByDate());
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}
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}
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mHistoryChangedSignal(removed_index);
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}
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void LLTeleportHistoryStorage::removeItem(S32 idx)
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{
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if (idx < 0 || idx >= (S32)mItems.size())
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return;
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mItems.erase (mItems.begin() + idx);
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}
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void LLTeleportHistoryStorage::save()
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{
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// build filename for each user
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std::string resolvedFilename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename);
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// open the history file for writing
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llofstream file(resolvedFilename.c_str());
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if (!file.is_open())
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{
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LL_WARNS() << "can't open teleport history file \"" << mFilename << "\" for writing" << LL_ENDL;
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return;
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}
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for (size_t i=0; i<mItems.size(); i++)
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{
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LLSD s_item = mItems[i].toLLSD();
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file << LLSDOStreamer<LLSDNotationFormatter>(s_item) << std::endl;
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}
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file.close();
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}
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void LLTeleportHistoryStorage::load()
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{
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// build filename for each user
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std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename);
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// open the history file for reading
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llifstream file(resolved_filename.c_str());
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if (!file.is_open())
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{
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LL_WARNS() << "can't load teleport history from file \"" << mFilename << "\"" << LL_ENDL;
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return;
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}
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// remove current entries before we load over them
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mItems.clear();
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// the parser's destructor is protected so we cannot create in the stack.
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LLPointer<LLSDParser> parser = new LLSDNotationParser();
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std::string line;
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while (std::getline(file, line))
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{
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if (line.empty())
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{
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LL_WARNS() << "Teleport history contains empty line."<< LL_ENDL;
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continue;
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}
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LLSD s_item;
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std::istringstream iss(line);
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if (parser->parse(iss, s_item, line.length()) == LLSDParser::PARSE_FAILURE)
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{
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LL_INFOS() << "Parsing saved teleport history failed" << LL_ENDL;
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break;
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}
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mItems.push_back(s_item);
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}
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file.close();
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std::sort(mItems.begin(), mItems.end(), LLSortItemsByDate());
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mHistoryChangedSignal(-1);
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}
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void LLTeleportHistoryStorage::dump() const
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{
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LL_INFOS() << "Teleport history storage dump (" << mItems.size() << " items):" << LL_ENDL;
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for (size_t i=0; i<mItems.size(); i++)
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{
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std::stringstream line;
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line << i << ": " << mItems[i].mTitle;
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line << " global pos: " << mItems[i].mGlobalPos;
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line << " date: " << mItems[i].mDate;
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LL_INFOS() << line.str() << LL_ENDL;
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}
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}
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boost::signals2::connection LLTeleportHistoryStorage::setHistoryChangedCallback(history_callback_t cb)
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{
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return mHistoryChangedSignal.connect(cb);
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}
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void LLTeleportHistoryStorage::goToItem(S32 idx)
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{
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// Validate specified index.
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if (idx < 0 || idx >= (S32)mItems.size())
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{
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LL_WARNS() << "Invalid teleport history index (" << idx << ") specified" << LL_ENDL;
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dump();
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return;
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}
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// Attempt to teleport to the requested item.
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gAgent.teleportViaLocation(mItems[idx].mGlobalPos);
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}
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void LLTeleportHistoryStorage::showItemOnMap(S32 idx)
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{
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// Validate specified index.
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if (idx < 0 || idx >= (S32)mItems.size())
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{
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LL_WARNS() << "Invalid teleport history index (" << idx << ") specified" << LL_ENDL;
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dump();
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return;
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}
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LLVector3d landmark_global_pos = mItems[idx].mGlobalPos;
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LLFloaterWorldMap* worldmap_instance = LLFloaterWorldMap::getInstance();
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if (!landmark_global_pos.isExactlyZero() && worldmap_instance)
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{
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worldmap_instance->trackLocation(landmark_global_pos);
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LLFloaterReg::showInstance("world_map", "center");
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}
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}
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