Redesign "Incomplete folder" feature

Change "Incomplete/temp folder" term with "download folder".
Allow to set "download folder" per torrent (in manual mode) and per category (in automatic mode).

src/base/CMakeLists.txt

@@ -8,6 +8,7 @@ add_library(qbt_base STATIC
     bittorrent/bandwidthscheduler.h
     bittorrent/bencoderesumedatastorage.h
     bittorrent/cachestatus.h
+    bittorrent/categoryoptions.h
     bittorrent/common.h
     bittorrent/customstorage.h
     bittorrent/dbresumedatastorage.h
@@ -100,6 +101,7 @@ add_library(qbt_base STATIC
     bittorrent/abstractfilestorage.cpp
     bittorrent/bandwidthscheduler.cpp
     bittorrent/bencoderesumedatastorage.cpp
+    bittorrent/categoryoptions.cpp
     bittorrent/customstorage.cpp
     bittorrent/dbresumedatastorage.cpp
     bittorrent/downloadpriority.cpp

src/base/base.pri

@@ -7,6 +7,7 @@ HEADERS += \
     $$PWD/bittorrent/bandwidthscheduler.h \
     $$PWD/bittorrent/bencoderesumedatastorage.h \
     $$PWD/bittorrent/cachestatus.h \
+    $$PWD/bittorrent/categoryoptions.h \
     $$PWD/bittorrent/common.h \
     $$PWD/bittorrent/customstorage.h \
     $$PWD/bittorrent/downloadpriority.h \
@@ -100,6 +101,7 @@ SOURCES += \
     $$PWD/bittorrent/abstractfilestorage.cpp \
     $$PWD/bittorrent/bandwidthscheduler.cpp \
     $$PWD/bittorrent/bencoderesumedatastorage.cpp \
+    $$PWD/bittorrent/categoryoptions.cpp \
     $$PWD/bittorrent/customstorage.cpp \
     $$PWD/bittorrent/dbresumedatastorage.cpp \
     $$PWD/bittorrent/downloadpriority.cpp \

src/base/bittorrent/addtorrentparams.h

@@ -48,7 +48,8 @@ namespace BitTorrent
         QString category;
         TagSet tags;
         QString savePath;
-        bool disableTempPath = false; // e.g. for imported torrents
+        std::optional<bool> useDownloadPath;
+        QString downloadPath;
         bool sequential = false;
         bool firstLastPiecePriority = false;
         bool addForced = false;

src/base/bittorrent/bencoderesumedatastorage.cpp

@@ -173,12 +173,19 @@ std::optional<BitTorrent::LoadTorrentParams> BitTorrent::BencodeResumeDataStorag
     torrentParams.restored = true;
     torrentParams.category = fromLTString(root.dict_find_string_value("qBt-category"));
     torrentParams.name = fromLTString(root.dict_find_string_value("qBt-name"));
-    torrentParams.savePath = Profile::instance()->fromPortablePath(
-                Utils::Fs::toUniformPath(fromLTString(root.dict_find_string_value("qBt-savePath"))));
     torrentParams.hasSeedStatus = root.dict_find_int_value("qBt-seedStatus");
     torrentParams.firstLastPiecePriority = root.dict_find_int_value("qBt-firstLastPiecePriority");
     torrentParams.seedingTimeLimit = root.dict_find_int_value("qBt-seedingTimeLimit", Torrent::USE_GLOBAL_SEEDING_TIME);
 
+    torrentParams.savePath = Profile::instance()->fromPortablePath(
+                Utils::Fs::toUniformPath(fromLTString(root.dict_find_string_value("qBt-savePath"))));
+    torrentParams.useAutoTMM = torrentParams.savePath.isEmpty();
+    if (!torrentParams.useAutoTMM)
+    {
+        torrentParams.downloadPath = Profile::instance()->fromPortablePath(
+                    Utils::Fs::toUniformPath(fromLTString(root.dict_find_string_value("qBt-downloadPath"))));
+    }
+
     // TODO: The following code is deprecated. Replace with the commented one after several releases in 4.4.x.
     // === BEGIN DEPRECATED CODE === //
     const lt::bdecode_node contentLayoutNode = root.dict_find("qBt-contentLayout");
@@ -352,7 +359,6 @@ void BitTorrent::BencodeResumeDataStorage::Worker::store(const TorrentID &id, co
         }
     }
 
-    data["qBt-savePath"] = Profile::instance()->toPortablePath(resumeData.savePath).toStdString();
     data["qBt-ratioLimit"] = static_cast<int>(resumeData.ratioLimit * 1000);
     data["qBt-seedingTimeLimit"] = resumeData.seedingTimeLimit;
     data["qBt-category"] = resumeData.category.toStdString();
@@ -362,6 +368,12 @@ void BitTorrent::BencodeResumeDataStorage::Worker::store(const TorrentID &id, co
     data["qBt-contentLayout"] = Utils::String::fromEnum(resumeData.contentLayout).toStdString();
     data["qBt-firstLastPiecePriority"] = resumeData.firstLastPiecePriority;
 
+    if (!resumeData.useAutoTMM)
+    {
+        data["qBt-savePath"] = Profile::instance()->toPortablePath(resumeData.savePath).toStdString();
+        data["qBt-downloadPath"] = Profile::instance()->toPortablePath(resumeData.downloadPath).toStdString();
+    }
+
     const QString resumeFilepath = m_resumeDataDir.absoluteFilePath(QString::fromLatin1("%1.fastresume").arg(id.toString()));
     const nonstd::expected<void, QString> result = Utils::IO::saveToFile(resumeFilepath, data);
     if (!result)

src/base/bittorrent/categoryoptions.cpp

@@ -0,0 +1,78 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2021  Vladimir Golovnev <glassez@yandex.ru>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#include "categoryoptions.h"
+
+#include <QJsonObject>
+#include <QJsonValue>
+
+const QString OPTION_SAVEPATH {QStringLiteral("save_path")};
+const QString OPTION_DOWNLOADPATH {QStringLiteral("download_path")};
+
+BitTorrent::CategoryOptions BitTorrent::CategoryOptions::fromJSON(const QJsonObject &jsonObj)
+{
+    CategoryOptions options;
+    options.savePath = jsonObj.value(OPTION_SAVEPATH).toString();
+
+    const QJsonValue downloadPathValue = jsonObj.value(OPTION_DOWNLOADPATH);
+    if (downloadPathValue.isBool())
+        options.downloadPath = {downloadPathValue.toBool()};
+    else if (downloadPathValue.isString())
+        options.downloadPath = {true, downloadPathValue.toString()};
+
+    return options;
+}
+
+QJsonObject BitTorrent::CategoryOptions::toJSON() const
+{
+    QJsonValue downloadPathValue = QJsonValue::Undefined;
+    if (downloadPath)
+    {
+        if (downloadPath->enabled)
+            downloadPathValue = downloadPath->path;
+        else
+            downloadPathValue = false;
+    }
+
+    return {
+        {OPTION_SAVEPATH, savePath},
+        {OPTION_DOWNLOADPATH, downloadPathValue}
+    };
+}
+
+bool BitTorrent::operator==(const BitTorrent::CategoryOptions::DownloadPathOption &left, const BitTorrent::CategoryOptions::DownloadPathOption &right)
+{
+    return ((left.enabled == right.enabled)
+            && (left.path == right.path));
+}
+
+bool BitTorrent::operator==(const BitTorrent::CategoryOptions &left, const BitTorrent::CategoryOptions &right)
+{
+    return ((left.savePath == right.savePath)
+            && (left.downloadPath == right.downloadPath));
+}

src/base/bittorrent/categoryoptions.h

@@ -0,0 +1,56 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2021  Vladimir Golovnev <glassez@yandex.ru>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#pragma once
+
+#include <optional>
+
+#include <QString>
+
+class QJsonObject;
+
+namespace BitTorrent
+{
+    struct CategoryOptions
+    {
+        struct DownloadPathOption
+        {
+            bool enabled;
+            QString path;
+        };
+
+        QString savePath;
+        std::optional<DownloadPathOption> downloadPath;
+
+        static CategoryOptions fromJSON(const QJsonObject &jsonObj);
+        QJsonObject toJSON() const;
+    };
+
+    bool operator==(const CategoryOptions::DownloadPathOption &left, const CategoryOptions::DownloadPathOption &right);
+    bool operator==(const CategoryOptions &left, const CategoryOptions &right);
+}

src/base/bittorrent/dbresumedatastorage.cpp

@@ -28,6 +28,8 @@
 
 #include "dbresumedatastorage.h"
 
+#include <utility>
+
 #include <libtorrent/bdecode.hpp>
 #include <libtorrent/bencode.hpp>
 #include <libtorrent/entry.hpp>
@@ -57,11 +59,13 @@ namespace
 {
     const char DB_CONNECTION_NAME[] = "ResumeDataStorage";
 
-    const int DB_VERSION = 1;
+    const int DB_VERSION = 2;
 
     const char DB_TABLE_META[] = "meta";
     const char DB_TABLE_TORRENTS[] = "torrents";
 
+    const char META_VERSION[] = "version";
+
     struct Column
     {
         QString name;
@@ -80,6 +84,7 @@ namespace
     const Column DB_COLUMN_CATEGORY = makeColumn("category");
     const Column DB_COLUMN_TAGS = makeColumn("tags");
     const Column DB_COLUMN_TARGET_SAVE_PATH = makeColumn("target_save_path");
+    const Column DB_COLUMN_DOWNLOAD_PATH = makeColumn("download_path");
     const Column DB_COLUMN_CONTENT_LAYOUT = makeColumn("content_layout");
     const Column DB_COLUMN_RATIO_LIMIT = makeColumn("ratio_limit");
     const Column DB_COLUMN_SEEDING_TIME_LIMIT = makeColumn("seeding_time_limit");
@@ -109,42 +114,50 @@ namespace
         return QString::fromLatin1("CREATE TABLE %1 (%2)").arg(quoted(tableName), items.join(QLatin1Char(',')));
     }
 
-    QString makeInsertStatement(const QString &tableName, const QVector<Column> &columns)
+    std::pair<QString, QString> joinColumns(const QVector<Column> &columns)
     {
-        QStringList names;
-        names.reserve(columns.size());
-        QStringList values;
-        values.reserve(columns.size());
+        int namesSize = columns.size();
+        int valuesSize = columns.size();
         for (const Column &column : columns)
         {
-            names.append(quoted(column.name));
-            values.append(column.placeholder);
+            namesSize += column.name.size() + 2;
+            valuesSize += column.placeholder.size();
         }
 
-        const QString jointNames = names.join(QLatin1Char(','));
-        const QString jointValues = values.join(QLatin1Char(','));
+        QString names;
+        names.reserve(namesSize);
+        QString values;
+        values.reserve(valuesSize);
+        for (const Column &column : columns)
+        {
+            names.append(quoted(column.name) + QLatin1Char(','));
+            values.append(column.placeholder + QLatin1Char(','));
+        }
+        names.chop(1);
+        values.chop(1);
 
-        return QString::fromLatin1("INSERT INTO %1 (%2) VALUES (%3)")
-                .arg(quoted(tableName), jointNames, jointValues);
+        return std::make_pair(names, values);
     }
 
-    QString makeOnConflictUpdateStatement(const Column &constraint, const QVector<Column> &columns)
+    QString makeInsertStatement(const QString &tableName, const QVector<Column> &columns)
     {
-        QStringList names;
-        names.reserve(columns.size());
-        QStringList values;
-        values.reserve(columns.size());
-        for (const Column &column : columns)
-        {
-            names.append(quoted(column.name));
-            values.append(column.placeholder);
-        }
+        const auto [names, values] = joinColumns(columns);
+        return QString::fromLatin1("INSERT INTO %1 (%2) VALUES (%3)")
+                .arg(quoted(tableName), names, values);
+    }
 
-        const QString jointNames = names.join(QLatin1Char(','));
-        const QString jointValues = values.join(QLatin1Char(','));
+    QString makeUpdateStatement(const QString &tableName, const QVector<Column> &columns)
+    {
+        const auto [names, values] = joinColumns(columns);
+        return QString::fromLatin1("UPDATE %1 SET (%2) = (%3)")
+                .arg(quoted(tableName), names, values);
+    }
 
+    QString makeOnConflictUpdateStatement(const Column &constraint, const QVector<Column> &columns)
+    {
+        const auto [names, values] = joinColumns(columns);
         return QString::fromLatin1(" ON CONFLICT (%1) DO UPDATE SET (%2) = (%3)")
-                .arg(quoted(constraint.name), jointNames, jointValues);
+                .arg(quoted(constraint.name), names, values);
     }
 
     QString makeColumnDefinition(const Column &column, const char *definition)
@@ -187,7 +200,15 @@ BitTorrent::DBResumeDataStorage::DBResumeDataStorage(const QString &dbPath, QObj
         throw RuntimeError(db.lastError().text());
 
     if (needCreateDB)
+    {
         createDB();
+    }
+    else
+    {
+        const int dbVersion = currentDBVersion();
+        if (dbVersion == 1)
+            updateDBFromVersion1();
+    }
 
     m_asyncWorker = new Worker(dbPath, QLatin1String("ResumeDataStorageWorker"));
     m_asyncWorker->moveToThread(m_ioThread);
@@ -276,8 +297,6 @@ std::optional<BitTorrent::LoadTorrentParams> BitTorrent::DBResumeDataStorage::lo
         const QStringList tagList = tagsData.split(QLatin1Char(','));
         resumeData.tags.insert(tagList.cbegin(), tagList.cend());
     }
-    resumeData.savePath = Profile::instance()->fromPortablePath(
-                Utils::Fs::toUniformPath(query.value(DB_COLUMN_TARGET_SAVE_PATH.name).toString()));
     resumeData.hasSeedStatus = query.value(DB_COLUMN_HAS_SEED_STATUS.name).toBool();
     resumeData.firstLastPiecePriority = query.value(DB_COLUMN_HAS_OUTER_PIECES_PRIORITY.name).toBool();
     resumeData.ratioLimit = query.value(DB_COLUMN_RATIO_LIMIT.name).toInt() / 1000.0;
@@ -288,6 +307,15 @@ std::optional<BitTorrent::LoadTorrentParams> BitTorrent::DBResumeDataStorage::lo
                 query.value(DB_COLUMN_OPERATING_MODE.name).toString(), TorrentOperatingMode::AutoManaged);
     resumeData.stopped = query.value(DB_COLUMN_STOPPED.name).toBool();
 
+    resumeData.savePath = Profile::instance()->fromPortablePath(
+                Utils::Fs::toUniformPath(query.value(DB_COLUMN_TARGET_SAVE_PATH.name).toString()));
+    resumeData.useAutoTMM = resumeData.savePath.isEmpty();
+    if (!resumeData.useAutoTMM)
+    {
+        resumeData.downloadPath = Profile::instance()->fromPortablePath(
+                    Utils::Fs::toUniformPath(query.value(DB_COLUMN_DOWNLOAD_PATH.name).toString()));
+    }
+
     const QByteArray bencodedResumeData = query.value(DB_COLUMN_RESUMEDATA.name).toByteArray();
     const QByteArray bencodedMetadata = query.value(DB_COLUMN_METADATA.name).toByteArray();
     const QByteArray allData = ((bencodedMetadata.isEmpty() || bencodedResumeData.isEmpty())
@@ -297,6 +325,9 @@ std::optional<BitTorrent::LoadTorrentParams> BitTorrent::DBResumeDataStorage::lo
     lt::error_code ec;
     const lt::bdecode_node root = lt::bdecode(allData, ec);
 
+    resumeData.downloadPath = Profile::instance()->fromPortablePath(
+                Utils::Fs::toUniformPath(fromLTString(root.dict_find_string_value("qBt-downloadPath"))));
+
     lt::add_torrent_params &p = resumeData.ltAddTorrentParams;
 
     p = lt::read_resume_data(root, ec);
@@ -329,6 +360,33 @@ void BitTorrent::DBResumeDataStorage::storeQueue(const QVector<TorrentID> &queue
     });
 }
 
+int BitTorrent::DBResumeDataStorage::currentDBVersion() const
+{
+    const auto selectDBVersionStatement = QString::fromLatin1("SELECT %1 FROM %2 WHERE %3 = %4;")
+            .arg(quoted(DB_COLUMN_VALUE.name), quoted(DB_TABLE_META), quoted(DB_COLUMN_NAME.name), DB_COLUMN_NAME.placeholder);
+
+    auto db = QSqlDatabase::database(DB_CONNECTION_NAME);
+    QSqlQuery query {db};
+
+    if (!query.prepare(selectDBVersionStatement))
+        throw RuntimeError(query.lastError().text());
+
+    query.bindValue(DB_COLUMN_NAME.placeholder, QString::fromLatin1(META_VERSION));
+
+    if (!query.exec())
+        throw RuntimeError(query.lastError().text());
+
+    if (!query.next())
+        throw RuntimeError(tr("Database is corrupted."));
+
+    bool ok;
+    const int dbVersion = query.value(0).toInt(&ok);
+    if (!ok)
+        throw RuntimeError(tr("Database is corrupted."));
+
+    return dbVersion;
+}
+
 void BitTorrent::DBResumeDataStorage::createDB() const
 {
     auto db = QSqlDatabase::database(DB_CONNECTION_NAME);
@@ -353,7 +411,7 @@ void BitTorrent::DBResumeDataStorage::createDB() const
         if (!query.prepare(insertMetaVersionQuery))
             throw RuntimeError(query.lastError().text());
 
-        query.bindValue(DB_COLUMN_NAME.placeholder, QString::fromLatin1("version"));
+        query.bindValue(DB_COLUMN_NAME.placeholder, QString::fromLatin1(META_VERSION));
         query.bindValue(DB_COLUMN_VALUE.placeholder, DB_VERSION);
 
         if (!query.exec())
@@ -391,6 +449,42 @@ void BitTorrent::DBResumeDataStorage::createDB() const
     }
 }
 
+void BitTorrent::DBResumeDataStorage::updateDBFromVersion1() const
+{
+    auto db = QSqlDatabase::database(DB_CONNECTION_NAME);
+
+    if (!db.transaction())
+        throw RuntimeError(db.lastError().text());
+
+    QSqlQuery query {db};
+
+    try
+    {
+        const auto alterTableTorrentsQuery = QString::fromLatin1("ALTER TABLE %1 ADD %2")
+                .arg(quoted(DB_TABLE_TORRENTS), makeColumnDefinition(DB_COLUMN_DOWNLOAD_PATH, "TEXT"));
+        if (!query.exec(alterTableTorrentsQuery))
+            throw RuntimeError(query.lastError().text());
+
+        const QString updateMetaVersionQuery = makeUpdateStatement(DB_TABLE_META, {DB_COLUMN_NAME, DB_COLUMN_VALUE});
+        if (!query.prepare(updateMetaVersionQuery))
+            throw RuntimeError(query.lastError().text());
+
+        query.bindValue(DB_COLUMN_NAME.placeholder, QString::fromLatin1(META_VERSION));
+        query.bindValue(DB_COLUMN_VALUE.placeholder, DB_VERSION);
+
+        if (!query.exec())
+            throw RuntimeError(query.lastError().text());
+
+        if (!db.commit())
+            throw RuntimeError(db.lastError().text());
+    }
+    catch (const RuntimeError &)
+    {
+        db.rollback();
+        throw;
+    }
+}
+
 BitTorrent::DBResumeDataStorage::Worker::Worker(const QString &dbPath, const QString &dbConnectionName)
     : m_path {dbPath}
     , m_connectionName {dbConnectionName}
@@ -499,7 +593,6 @@ void BitTorrent::DBResumeDataStorage::Worker::store(const TorrentID &id, const L
         query.bindValue(DB_COLUMN_CATEGORY.placeholder, resumeData.category);
         query.bindValue(DB_COLUMN_TAGS.placeholder, (resumeData.tags.isEmpty()
             ? QVariant(QVariant::String) : resumeData.tags.join(QLatin1String(","))));
-        query.bindValue(DB_COLUMN_TARGET_SAVE_PATH.placeholder, Profile::instance()->toPortablePath(resumeData.savePath));
         query.bindValue(DB_COLUMN_CONTENT_LAYOUT.placeholder, Utils::String::fromEnum(resumeData.contentLayout));
         query.bindValue(DB_COLUMN_RATIO_LIMIT.placeholder, static_cast<int>(resumeData.ratioLimit * 1000));
         query.bindValue(DB_COLUMN_SEEDING_TIME_LIMIT.placeholder, resumeData.seedingTimeLimit);
@@ -507,6 +600,13 @@ void BitTorrent::DBResumeDataStorage::Worker::store(const TorrentID &id, const L
         query.bindValue(DB_COLUMN_HAS_SEED_STATUS.placeholder, resumeData.hasSeedStatus);
         query.bindValue(DB_COLUMN_OPERATING_MODE.placeholder, Utils::String::fromEnum(resumeData.operatingMode));
         query.bindValue(DB_COLUMN_STOPPED.placeholder, resumeData.stopped);
+
+        if (!resumeData.useAutoTMM)
+        {
+            query.bindValue(DB_COLUMN_TARGET_SAVE_PATH.placeholder, Profile::instance()->toPortablePath(resumeData.savePath));
+            query.bindValue(DB_COLUMN_DOWNLOAD_PATH.placeholder, Profile::instance()->toPortablePath(resumeData.downloadPath));
+        }
+
         query.bindValue(DB_COLUMN_RESUMEDATA.placeholder, bencodedResumeData);
         if (!bencodedMetadata.isEmpty())
             query.bindValue(DB_COLUMN_METADATA.placeholder, bencodedMetadata);

src/base/bittorrent/dbresumedatastorage.h

@@ -50,7 +50,9 @@ namespace BitTorrent
         void storeQueue(const QVector<TorrentID> &queue) const override;
 
     private:
+        int currentDBVersion() const;
         void createDB() const;
+        void updateDBFromVersion1() const;
 
         QThread *m_ioThread = nullptr;
 

src/base/bittorrent/filesearcher.cpp

@@ -34,7 +34,7 @@
 #include "base/bittorrent/infohash.h"
 
 void FileSearcher::search(const BitTorrent::TorrentID &id, const QStringList &originalFileNames
-                          , const QString &completeSavePath, const QString &incompleteSavePath)
+                          , const QString &savePath, const QString &downloadPath)
 {
     const auto findInDir = [](const QString &dirPath, QStringList &fileNames) -> bool
     {
@@ -56,14 +56,14 @@ void FileSearcher::search(const BitTorrent::TorrentID &id, const QStringList &or
         return found;
     };
 
-    QString savePath = completeSavePath;
+    QString usedPath = savePath;
     QStringList adjustedFileNames = originalFileNames;
-    const bool found = findInDir(savePath, adjustedFileNames);
-    if (!found && !incompleteSavePath.isEmpty())
+    const bool found = findInDir(usedPath, adjustedFileNames);
+    if (!found && !downloadPath.isEmpty())
     {
-        savePath = incompleteSavePath;
-        findInDir(savePath, adjustedFileNames);
+        usedPath = downloadPath;
+        findInDir(usedPath, adjustedFileNames);
     }
 
-    emit searchFinished(id, savePath, adjustedFileNames);
+    emit searchFinished(id, usedPath, adjustedFileNames);
 }

src/base/bittorrent/filesearcher.h

@@ -45,7 +45,7 @@ public:
 
 public slots:
     void search(const BitTorrent::TorrentID &id, const QStringList &originalFileNames
-                , const QString &completeSavePath, const QString &incompleteSavePath);
+                , const QString &savePath, const QString &downloadPath);
 
 signals:
     void searchFinished(const BitTorrent::TorrentID &id, const QString &savePath, const QStringList &fileNames);

src/base/bittorrent/loadtorrentparams.h

@@ -46,8 +46,10 @@ namespace BitTorrent
         QString category;
         TagSet tags;
         QString savePath;
+        QString downloadPath;
         TorrentContentLayout contentLayout = TorrentContentLayout::Original;
         TorrentOperatingMode operatingMode = TorrentOperatingMode::AutoManaged;
+        bool useAutoTMM = false;
         bool firstLastPiecePriority = false;
         bool hasSeedStatus = false;
         bool stopped = false;

src/base/bittorrent/session.cpp

@@ -58,6 +58,10 @@
 #include <QDir>
 #include <QFile>
 #include <QHostAddress>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonValue>
 #include <QNetworkAddressEntry>
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
 #include <QNetworkConfigurationManager>
@@ -80,6 +84,7 @@
 #include "base/unicodestrings.h"
 #include "base/utils/bytearray.h"
 #include "base/utils/fs.h"
+#include "base/utils/io.h"
 #include "base/utils/misc.h"
 #include "base/utils/net.h"
 #include "base/utils/random.h"
@@ -103,6 +108,8 @@
 
 using namespace BitTorrent;
 
+const QString CATEGORIES_FILE_NAME {QStringLiteral("categories.json")};
+
 namespace
 {
     const char PEER_ID[] = "qB";
@@ -156,42 +163,9 @@ namespace
         }
     }
 
-    QStringMap map_cast(const QVariantMap &map)
-    {
-        QStringMap result;
-        for (auto i = map.cbegin(); i != map.cend(); ++i)
-            result[i.key()] = i.value().toString();
-        return result;
-    }
-
-    QVariantMap map_cast(const QStringMap &map)
-    {
-        QVariantMap result;
-        for (auto i = map.cbegin(); i != map.cend(); ++i)
-            result[i.key()] = i.value();
-        return result;
-    }
-
-    QString normalizePath(const QString &path)
+    QMap<QString, CategoryOptions> expandCategories(const QMap<QString, CategoryOptions> &categories)
     {
-        QString tmp = Utils::Fs::toUniformPath(path.trimmed());
-        if (!tmp.isEmpty() && !tmp.endsWith('/'))
-            return tmp + '/';
-        return tmp;
-    }
-
-    QString normalizeSavePath(QString path, const QString &defaultPath = specialFolderLocation(SpecialFolder::Downloads))
-    {
-        path = path.trimmed();
-        if (path.isEmpty())
-            path = Utils::Fs::toUniformPath(defaultPath.trimmed());
-
-        return normalizePath(path);
-    }
-
-    QStringMap expandCategories(const QStringMap &categories)
-    {
-        QStringMap expanded = categories;
+        QMap<QString, CategoryOptions> expanded = categories;
 
         for (auto i = categories.cbegin(); i != categories.cend(); ++i)
         {
@@ -199,7 +173,7 @@ namespace
             for (const QString &subcat : asConst(Session::expandCategory(category)))
             {
                 if (!expanded.contains(subcat))
-                    expanded[subcat] = "";
+                    expanded[subcat] = {};
             }
         }
 
@@ -418,13 +392,12 @@ Session::Session(QObject *parent)
         , clampValue(ChokingAlgorithm::FixedSlots, ChokingAlgorithm::RateBased))
     , m_seedChokingAlgorithm(BITTORRENT_SESSION_KEY("SeedChokingAlgorithm"), SeedChokingAlgorithm::FastestUpload
         , clampValue(SeedChokingAlgorithm::RoundRobin, SeedChokingAlgorithm::AntiLeech))
-    , m_storedCategories(BITTORRENT_SESSION_KEY("Categories"))
     , m_storedTags(BITTORRENT_SESSION_KEY("Tags"))
     , m_maxRatioAction(BITTORRENT_SESSION_KEY("MaxRatioAction"), Pause)
-    , m_defaultSavePath(BITTORRENT_SESSION_KEY("DefaultSavePath"), specialFolderLocation(SpecialFolder::Downloads), normalizePath)
-    , m_tempPath(BITTORRENT_SESSION_KEY("TempPath"), defaultSavePath() + "temp/", normalizePath)
+    , m_savePath(BITTORRENT_SESSION_KEY("DefaultSavePath"), specialFolderLocation(SpecialFolder::Downloads), Utils::Fs::toUniformPath)
+    , m_downloadPath(BITTORRENT_SESSION_KEY("TempPath"), specialFolderLocation(SpecialFolder::Downloads) + QLatin1String("/temp"), Utils::Fs::toUniformPath)
     , m_isSubcategoriesEnabled(BITTORRENT_SESSION_KEY("SubcategoriesEnabled"), false)
-    , m_isTempPathEnabled(BITTORRENT_SESSION_KEY("TempPathEnabled"), false)
+    , m_isDownloadPathEnabled(BITTORRENT_SESSION_KEY("TempPathEnabled"), false)
     , m_isAutoTMMDisabledByDefault(BITTORRENT_SESSION_KEY("DisableAutoTMMByDefault"), true)
     , m_isDisableAutoTMMWhenCategoryChanged(BITTORRENT_SESSION_KEY("DisableAutoTMMTriggers/CategoryChanged"), false)
     , m_isDisableAutoTMMWhenDefaultSavePathChanged(BITTORRENT_SESSION_KEY("DisableAutoTMMTriggers/DefaultSavePathChanged"), true)
@@ -472,12 +445,11 @@ Session::Session(QObject *parent)
     if (isBandwidthSchedulerEnabled())
         enableBandwidthScheduler();
 
-    m_categories = map_cast(m_storedCategories);
+    loadCategories();
     if (isSubcategoriesEnabled())
     {
         // if subcategories support changed manually
         m_categories = expandCategories(m_categories);
-        m_storedCategories = map_cast(m_categories);
     }
 
     const QStringList storedTags = m_storedTags.get();
@@ -566,18 +538,18 @@ void Session::setPeXEnabled(const bool enabled)
         LogMsg(tr("Restart is required to toggle PeX support"), Log::WARNING);
 }
 
-bool Session::isTempPathEnabled() const
+bool Session::isDownloadPathEnabled() const
 {
-    return m_isTempPathEnabled;
+    return m_isDownloadPathEnabled;
 }
 
-void Session::setTempPathEnabled(const bool enabled)
+void Session::setDownloadPathEnabled(const bool enabled)
 {
-    if (enabled != isTempPathEnabled())
+    if (enabled != isDownloadPathEnabled())
     {
-        m_isTempPathEnabled = enabled;
+        m_isDownloadPathEnabled = enabled;
         for (TorrentImpl *const torrent : asConst(m_torrents))
-            torrent->handleTempPathChanged();
+            torrent->handleDownloadPathChanged();
     }
 }
 
@@ -645,22 +617,14 @@ void Session::setFinishedTorrentExportDirectory(QString path)
         m_finishedTorrentExportDirectory = path;
 }
 
-QString Session::defaultSavePath() const
+QString Session::savePath() const
 {
-    return Utils::Fs::toUniformPath(m_defaultSavePath);
+    return m_savePath;
 }
 
-QString Session::tempPath() const
+QString Session::downloadPath() const
 {
-    return Utils::Fs::toUniformPath(m_tempPath);
-}
-
-QString Session::torrentTempPath(const TorrentInfo &torrentInfo) const
-{
-    if ((torrentInfo.filesCount() > 1) && !torrentInfo.hasRootFolder())
-        return tempPath() + torrentInfo.name() + '/';
-
-    return tempPath();
+    return m_downloadPath;
 }
 
 bool Session::isValidCategoryName(const QString &name)
@@ -692,29 +656,53 @@ QStringList Session::expandCategory(const QString &category)
     return result;
 }
 
-QStringMap Session::categories() const
+QStringList Session::categories() const
 {
-    return m_categories;
+    return m_categories.keys();
+}
+
+CategoryOptions Session::categoryOptions(const QString &categoryName) const
+{
+    return m_categories.value(categoryName);
 }
 
 QString Session::categorySavePath(const QString &categoryName) const
 {
-    const QString basePath = m_defaultSavePath;
-    if (categoryName.isEmpty()) return basePath;
+    const QString basePath = savePath();
+    if (categoryName.isEmpty())
+        return basePath;
 
-    QString path = m_categories.value(categoryName);
+    QString path = m_categories.value(categoryName).savePath;
     if (path.isEmpty()) // use implicit save path
         path = Utils::Fs::toValidFileSystemName(categoryName, true);
 
-    if (!QDir::isAbsolutePath(path))
-        path.prepend(basePath);
+    return (QDir::isAbsolutePath(path) ? path : Utils::Fs::resolvePath(path, basePath));
+}
+
+QString Session::categoryDownloadPath(const QString &categoryName) const
+{
+    const CategoryOptions categoryOptions = m_categories.value(categoryName);
+    const CategoryOptions::DownloadPathOption downloadPathOption =
+            categoryOptions.downloadPath.value_or(CategoryOptions::DownloadPathOption {isDownloadPathEnabled(), downloadPath()});
+    if (!downloadPathOption.enabled)
+        return {};
 
-    return normalizeSavePath(path);
+    const QString basePath = downloadPath();
+    if (categoryName.isEmpty())
+        return basePath;
+
+    const QString path = (!downloadPathOption.path.isEmpty()
+                          ? downloadPathOption.path
+                          : Utils::Fs::toValidFileSystemName(categoryName, true)); // use implicit download path
+
+    return (QDir::isAbsolutePath(path) ? path : Utils::Fs::resolvePath(path, basePath));
 }
 
-bool Session::addCategory(const QString &name, const QString &savePath)
+bool Session::addCategory(const QString &name, const CategoryOptions &options)
 {
-    if (name.isEmpty()) return false;
+    if (name.isEmpty())
+        return false;
+
     if (!isValidCategoryName(name) || m_categories.contains(name))
         return false;
 
@@ -724,37 +712,46 @@ bool Session::addCategory(const QString &name, const QString &savePath)
         {
             if ((parent != name) && !m_categories.contains(parent))
             {
-                m_categories[parent] = "";
+                m_categories[parent] = {};
                 emit categoryAdded(parent);
             }
         }
     }
 
-    m_categories[name] = savePath;
-    m_storedCategories = map_cast(m_categories);
+    m_categories[name] = options;
+    storeCategories();
     emit categoryAdded(name);
 
     return true;
 }
 
-bool Session::editCategory(const QString &name, const QString &savePath)
+bool Session::editCategory(const QString &name, const CategoryOptions &options)
 {
-    if (!m_categories.contains(name)) return false;
-    if (categorySavePath(name) == savePath) return false;
+    const auto it = m_categories.find(name);
+    if (it == m_categories.end())
+        return false;
+
+    CategoryOptions &currentOptions = it.value();
+    if (options == currentOptions)
+        return false;
 
-    m_categories[name] = savePath;
-    m_storedCategories = map_cast(m_categories);
+    currentOptions = options;
+    storeCategories();
     if (isDisableAutoTMMWhenCategorySavePathChanged())
     {
         for (TorrentImpl *const torrent : asConst(m_torrents))
+        {
             if (torrent->category() == name)
                 torrent->setAutoTMMEnabled(false);
+        }
     }
     else
     {
         for (TorrentImpl *const torrent : asConst(m_torrents))
+        {
             if (torrent->category() == name)
-                torrent->handleCategorySavePathChanged();
+                torrent->handleCategoryOptionsChanged();
+        }
     }
 
     return true;
@@ -763,8 +760,10 @@ bool Session::editCategory(const QString &name, const QString &savePath)
 bool Session::removeCategory(const QString &name)
 {
     for (TorrentImpl *const torrent : asConst(m_torrents))
+    {
         if (torrent->belongsToCategory(name))
             torrent->setCategory("");
+    }
 
     // remove stored category and its subcategories if exist
     bool result = false;
@@ -772,7 +771,7 @@ bool Session::removeCategory(const QString &name)
     {
         // remove subcategories
         const QString test = name + '/';
-        Algorithm::removeIf(m_categories, [this, &test, &result](const QString &category, const QString &)
+        Algorithm::removeIf(m_categories, [this, &test, &result](const QString &category, const CategoryOptions &)
         {
             if (category.startsWith(test))
             {
@@ -789,7 +788,7 @@ bool Session::removeCategory(const QString &name)
     if (result)
     {
         // update stored categories
-        m_storedCategories = map_cast(m_categories);
+        storeCategories();
         emit categoryRemoved(name);
     }
 
@@ -810,12 +809,12 @@ void Session::setSubcategoriesEnabled(const bool value)
         // expand categories to include all parent categories
         m_categories = expandCategories(m_categories);
         // update stored categories
-        m_storedCategories = map_cast(m_categories);
+        storeCategories();
     }
     else
     {
         // reload categories
-        m_categories = map_cast(m_storedCategories);
+        loadCategories();
     }
 
     m_isSubcategoriesEnabled = value;
@@ -1823,14 +1822,7 @@ bool Session::deleteTorrent(const TorrentID &id, const DeleteOption deleteOption
     }
     else
     {
-        QString rootPath = torrent->rootPath(true);
-        if (!rootPath.isEmpty() && torrent->useTempPath())
-        {
-            // torrent without root folder still has it in its temporary save path
-            rootPath = torrent->actualStorageLocation();
-        }
-
-        m_removingTorrents[torrent->id()] = {torrent->name(), rootPath, deleteOption};
+        m_removingTorrents[torrent->id()] = {torrent->name(), torrent->rootPath(), deleteOption};
 
         if (m_moveStorageQueue.size() > 1)
         {
@@ -2059,6 +2051,7 @@ LoadTorrentParams Session::initLoadTorrentParams(const AddTorrentParams &addTorr
     LoadTorrentParams loadTorrentParams;
 
     loadTorrentParams.name = addTorrentParams.name;
+    loadTorrentParams.useAutoTMM = addTorrentParams.useAutoTMM.value_or(!isAutoTMMDisabledByDefault());
     loadTorrentParams.firstLastPiecePriority = addTorrentParams.firstLastPiecePriority;
     loadTorrentParams.hasSeedStatus = addTorrentParams.skipChecking; // do not react on 'torrent_finished_alert' when skipping
     loadTorrentParams.contentLayout = addTorrentParams.contentLayout.value_or(torrentContentLayout());
@@ -2067,21 +2060,26 @@ LoadTorrentParams Session::initLoadTorrentParams(const AddTorrentParams &addTorr
     loadTorrentParams.ratioLimit = addTorrentParams.ratioLimit;
     loadTorrentParams.seedingTimeLimit = addTorrentParams.seedingTimeLimit;
 
-    const bool useAutoTMM = addTorrentParams.useAutoTMM.value_or(!isAutoTMMDisabledByDefault());
-    if (useAutoTMM)
-        loadTorrentParams.savePath = "";
-    else if (addTorrentParams.savePath.isEmpty())
-        loadTorrentParams.savePath = defaultSavePath();
-    else if (QDir(addTorrentParams.savePath).isRelative())
-        loadTorrentParams.savePath = QDir(defaultSavePath()).absoluteFilePath(addTorrentParams.savePath);
-    else
-        loadTorrentParams.savePath = normalizePath(addTorrentParams.savePath);
+    if (!loadTorrentParams.useAutoTMM)
+    {
+        loadTorrentParams.savePath = (QDir::isAbsolutePath(addTorrentParams.savePath)
+                                      ? addTorrentParams.savePath
+                                      : Utils::Fs::resolvePath(addTorrentParams.savePath, savePath()));
+
+        const bool useDownloadPath = addTorrentParams.useDownloadPath.value_or(isDownloadPathEnabled());
+        if (useDownloadPath)
+        {
+            loadTorrentParams.downloadPath = (QDir::isAbsolutePath(addTorrentParams.downloadPath)
+                                              ? addTorrentParams.downloadPath
+                                              : Utils::Fs::resolvePath(addTorrentParams.downloadPath, downloadPath()));
+        }
+    }
 
     const QString category = addTorrentParams.category;
     if (!category.isEmpty() && !m_categories.contains(category) && !addCategory(category))
         loadTorrentParams.category = "";
     else
-        loadTorrentParams.category = addTorrentParams.category;
+        loadTorrentParams.category = category;
 
     for (const QString &tag : addTorrentParams.tags)
     {
@@ -2143,8 +2141,9 @@ bool Session::addTorrent_impl(const std::variant<MagnetUri, TorrentInfo> &source
 
     bool isFindingIncompleteFiles = false;
 
-    // If empty then Automatic mode, otherwise Manual mode
-    const QString actualSavePath = loadTorrentParams.savePath.isEmpty() ? categorySavePath(loadTorrentParams.category) : loadTorrentParams.savePath;
+    const bool useAutoTMM = loadTorrentParams.useAutoTMM;
+    const QString actualSavePath = useAutoTMM ? categorySavePath(loadTorrentParams.category) : loadTorrentParams.savePath;
+
     if (hasMetadata)
     {
         const TorrentInfo &torrentInfo = std::get<TorrentInfo>(source);
@@ -2170,7 +2169,9 @@ bool Session::addTorrent_impl(const std::variant<MagnetUri, TorrentInfo> &source
 
         if (!loadTorrentParams.hasSeedStatus)
         {
-            findIncompleteFiles(torrentInfo, actualSavePath, filePaths);
+            const QString actualDownloadPath = useAutoTMM
+                    ? categoryDownloadPath(loadTorrentParams.category) : loadTorrentParams.downloadPath;
+            findIncompleteFiles(torrentInfo, actualSavePath, actualDownloadPath, filePaths);
             isFindingIncompleteFiles = true;
         }
 
@@ -2264,17 +2265,16 @@ bool Session::loadTorrent(LoadTorrentParams params)
     return true;
 }
 
-void Session::findIncompleteFiles(const TorrentInfo &torrentInfo, const QString &savePath, const QStringList &filePaths) const
+void Session::findIncompleteFiles(const TorrentInfo &torrentInfo, const QString &savePath
+                                  , const QString &downloadPath, const QStringList &filePaths) const
 {
     Q_ASSERT(filePaths.isEmpty() || (filePaths.size() == torrentInfo.filesCount()));
 
     const auto searchId = TorrentID::fromInfoHash(torrentInfo.infoHash());
     const QStringList originalFileNames = (filePaths.isEmpty() ? torrentInfo.filePaths() : filePaths);
-    const QString completeSavePath = savePath;
-    const QString incompleteSavePath = (isTempPathEnabled() ? torrentTempPath(torrentInfo) : QString {});
     QMetaObject::invokeMethod(m_fileSearcher, [=]()
     {
-        m_fileSearcher->search(searchId, originalFileNames, completeSavePath, incompleteSavePath);
+        m_fileSearcher->search(searchId, originalFileNames, savePath, downloadPath);
     });
 }
 
@@ -2432,30 +2432,37 @@ void Session::removeTorrentsQueue() const
     m_resumeDataStorage->storeQueue({});
 }
 
-void Session::setDefaultSavePath(QString path)
+void Session::setSavePath(const QString &path)
 {
-    path = normalizeSavePath(path);
-    if (path == m_defaultSavePath) return;
+    const QString baseSavePath = specialFolderLocation(SpecialFolder::Downloads);
+    const QString resolvedPath = (QDir::isAbsolutePath(path) ? path : Utils::Fs::resolvePath(path, baseSavePath));
+    if (resolvedPath == m_savePath) return;
 
-    m_defaultSavePath = path;
+    m_savePath = resolvedPath;
 
     if (isDisableAutoTMMWhenDefaultSavePathChanged())
+    {
         for (TorrentImpl *const torrent : asConst(m_torrents))
             torrent->setAutoTMMEnabled(false);
+    }
     else
+    {
         for (TorrentImpl *const torrent : asConst(m_torrents))
-            torrent->handleCategorySavePathChanged();
+            torrent->handleCategoryOptionsChanged();
+    }
 }
 
-void Session::setTempPath(QString path)
+void Session::setDownloadPath(const QString &path)
 {
-    path = normalizeSavePath(path, defaultSavePath() + "temp/");
-    if (path == m_tempPath) return;
-
-    m_tempPath = path;
+    const QString baseDownloadPath = specialFolderLocation(SpecialFolder::Downloads) + QLatin1String("/temp");
+    const QString resolvedPath = (QDir::isAbsolutePath(path) ? path  : Utils::Fs::resolvePath(path, baseDownloadPath));
+    if (resolvedPath != m_downloadPath)
+    {
+        m_downloadPath = resolvedPath;
 
-    for (TorrentImpl *const torrent : asConst(m_torrents))
-        torrent->handleTempPathChanged();
+        for (TorrentImpl *const torrent : asConst(m_torrents))
+            torrent->handleDownloadPathChanged();
+    }
 }
 
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
@@ -3969,7 +3976,7 @@ void Session::handleTorrentFinished(TorrentImpl *const torrent)
         if (torrentRelpath.endsWith(".torrent", Qt::CaseInsensitive))
         {
             qDebug("Found possible recursive torrent download.");
-            const QString torrentFullpath = torrent->savePath(true) + '/' + torrentRelpath;
+            const QString torrentFullpath = torrent->actualStorageLocation() + '/' + torrentRelpath;
             qDebug("Full subtorrent path is %s", qUtf8Printable(torrentFullpath));
             if (TorrentInfo::loadFromFile(torrentFullpath))
             {
@@ -4022,7 +4029,7 @@ bool Session::addMoveTorrentStorageJob(TorrentImpl *torrent, const QString &newP
     Q_ASSERT(torrent);
 
     const lt::torrent_handle torrentHandle = torrent->nativeHandle();
-    const QString currentLocation = torrent->actualStorageLocation();
+    const QString currentLocation = Utils::Fs::toNativePath(torrent->actualStorageLocation());
 
     if (m_moveStorageQueue.size() > 1)
     {
@@ -4116,6 +4123,89 @@ void Session::handleMoveTorrentStorageJobFinished()
     }
 }
 
+void Session::storeCategories() const
+{
+    QJsonObject jsonObj;
+    for (auto it = m_categories.cbegin(); it != m_categories.cend(); ++it)
+    {
+        const QString &categoryName = it.key();
+        const CategoryOptions &categoryOptions = it.value();
+        jsonObj[categoryName] = categoryOptions.toJSON();
+    }
+
+    const QString path = QDir(specialFolderLocation(SpecialFolder::Config)).absoluteFilePath(CATEGORIES_FILE_NAME);
+    const QByteArray data = QJsonDocument(jsonObj).toJson();
+    const nonstd::expected<void, QString> result = Utils::IO::saveToFile(path, data);
+    if (!result)
+    {
+        LogMsg(tr("Couldn't store Categories configuration to %1. Error: %2")
+               .arg(path, result.error()), Log::WARNING);
+    }
+}
+
+void Session::upgradeCategories()
+{
+    const auto legacyCategories = SettingValue<QVariantMap>("BitTorrent/Session/Categories").get();
+    for (auto it = legacyCategories.cbegin(); it != legacyCategories.cend(); ++it)
+    {
+        const QString categoryName = it.key();
+        CategoryOptions categoryOptions;
+        categoryOptions.savePath = it.value().toString();
+        m_categories[categoryName] = categoryOptions;
+    }
+
+    storeCategories();
+}
+
+void Session::loadCategories()
+{
+    m_categories.clear();
+
+    QFile confFile {QDir(specialFolderLocation(SpecialFolder::Config)).absoluteFilePath(CATEGORIES_FILE_NAME)};
+    if (!confFile.exists())
+    {
+        // TODO: Remove the following upgrade code in v4.5
+        // == BEGIN UPGRADE CODE ==
+        upgradeCategories();
+        m_needUpgradeDownloadPath = true;
+        // == END UPGRADE CODE ==
+
+//        return;
+    }
+
+    if (!confFile.open(QFile::ReadOnly))
+    {
+        LogMsg(tr("Couldn't load Categories from %1. Error: %2")
+               .arg(confFile.fileName(), confFile.errorString()), Log::CRITICAL);
+        return;
+    }
+
+    QJsonParseError jsonError;
+    const QJsonDocument jsonDoc = QJsonDocument::fromJson(confFile.readAll(), &jsonError);
+    if (jsonError.error != QJsonParseError::NoError)
+    {
+        LogMsg(tr("Couldn't parse Categories configuration from %1. Error: %2")
+               .arg(confFile.fileName(), jsonError.errorString()), Log::WARNING);
+        return;
+    }
+
+    if (!jsonDoc.isObject())
+    {
+        LogMsg(tr("Couldn't load Categories configuration from %1. Invalid data format.")
+               .arg(confFile.fileName()), Log::WARNING);
+        return;
+    }
+
+
+    const QJsonObject jsonObj = jsonDoc.object();
+    for (auto it = jsonObj.constBegin(); it != jsonObj.constEnd(); ++it)
+    {
+        const QString &categoryName = it.key();
+        const auto categoryOptions = CategoryOptions::fromJSON(it.value().toObject());
+        m_categories[categoryName] = categoryOptions;
+    }
+}
+
 void Session::handleTorrentTrackerWarning(TorrentImpl *const torrent, const QString &trackerUrl)
 {
     emit trackerWarning(torrent, trackerUrl);
@@ -4258,20 +4348,40 @@ void Session::startUpTorrents()
     QVector<TorrentID> queue;
     for (const TorrentID &torrentID : torrents)
     {
-        const std::optional<LoadTorrentParams> resumeData = startupStorage->load(torrentID);
-        if (resumeData)
+        const std::optional<LoadTorrentParams> loadResumeDataResult = startupStorage->load(torrentID);
+        if (loadResumeDataResult)
         {
+            LoadTorrentParams resumeData = *loadResumeDataResult;
+            bool needStore = false;
+
             if (m_resumeDataStorage != startupStorage)
             {
-                m_resumeDataStorage->store(torrentID, *resumeData);
-                if (isQueueingSystemEnabled() && !resumeData->hasSeedStatus)
+               needStore = true;
+               if (isQueueingSystemEnabled() && !resumeData.hasSeedStatus)
                     queue.append(torrentID);
             }
 
+            // TODO: Remove the following upgrade code in v4.5
+            // == BEGIN UPGRADE CODE ==
+            if (m_needUpgradeDownloadPath && isDownloadPathEnabled())
+            {
+                if (!resumeData.useAutoTMM)
+                {
+                    resumeData.downloadPath = downloadPath();
+                    needStore = true;
+                }
+            }
+            // == END UPGRADE CODE ==
+
+            if (needStore)
+                 m_resumeDataStorage->store(torrentID, resumeData);
+
             qDebug() << "Starting up torrent" << torrentID.toString() << "...";
-            if (!loadTorrent(*resumeData))
+            if (!loadTorrent(resumeData))
+            {
                 LogMsg(tr("Unable to resume torrent '%1'.", "e.g: Unable to resume torrent 'hash'.")
-                           .arg(torrentID.toString()), Log::CRITICAL);
+                       .arg(torrentID.toString()), Log::CRITICAL);
+            }
 
             // process add torrent messages before message queue overflow
             if ((resumedTorrentsCount % 100) == 0) readAlerts();

src/base/bittorrent/session.h

@@ -47,6 +47,7 @@
 #include "base/types.h"
 #include "addtorrentparams.h"
 #include "cachestatus.h"
+#include "categoryoptions.h"
 #include "sessionstatus.h"
 #include "torrentinfo.h"
 #include "trackerentry.h"
@@ -211,22 +212,23 @@ namespace BitTorrent
         static void freeInstance();
         static Session *instance();
 
-        QString defaultSavePath() const;
-        void setDefaultSavePath(QString path);
-        QString tempPath() const;
-        void setTempPath(QString path);
-        bool isTempPathEnabled() const;
-        void setTempPathEnabled(bool enabled);
-        QString torrentTempPath(const TorrentInfo &torrentInfo) const;
+        QString savePath() const;
+        void setSavePath(const QString &path);
+        QString downloadPath() const;
+        void setDownloadPath(const QString &path);
+        bool isDownloadPathEnabled() const;
+        void setDownloadPathEnabled(bool enabled);
 
         static bool isValidCategoryName(const QString &name);
         // returns category itself and all top level categories
         static QStringList expandCategory(const QString &category);
 
-        QStringMap categories() const;
+        QStringList categories() const;
+        CategoryOptions categoryOptions(const QString &categoryName) const;
         QString categorySavePath(const QString &categoryName) const;
-        bool addCategory(const QString &name, const QString &savePath = "");
-        bool editCategory(const QString &name, const QString &savePath);
+        QString categoryDownloadPath(const QString &categoryName) const;
+        bool addCategory(const QString &name, const CategoryOptions &options = {});
+        bool editCategory(const QString &name, const CategoryOptions &options);
         bool removeCategory(const QString &name);
         bool isSubcategoriesEnabled() const;
         void setSubcategoriesEnabled(bool value);
@@ -499,7 +501,8 @@ namespace BitTorrent
 
         bool addMoveTorrentStorageJob(TorrentImpl *torrent, const QString &newPath, MoveStorageMode mode);
 
-        void findIncompleteFiles(const TorrentInfo &torrentInfo, const QString &savePath, const QStringList &filePaths = {}) const;
+        void findIncompleteFiles(const TorrentInfo &torrentInfo, const QString &savePath
+                                 , const QString &downloadPath, const QStringList &filePaths = {}) const;
 
     signals:
         void allTorrentsFinished();
@@ -642,6 +645,10 @@ namespace BitTorrent
         void moveTorrentStorage(const MoveStorageJob &job) const;
         void handleMoveTorrentStorageJobFinished();
 
+        void loadCategories();
+        void storeCategories() const;
+        void upgradeCategories();
+
         // BitTorrent
         lt::session *m_nativeSession = nullptr;
 
@@ -729,13 +736,12 @@ namespace BitTorrent
         CachedSettingValue<bool> m_isProxyPeerConnectionsEnabled;
         CachedSettingValue<ChokingAlgorithm> m_chokingAlgorithm;
         CachedSettingValue<SeedChokingAlgorithm> m_seedChokingAlgorithm;
-        CachedSettingValue<QVariantMap> m_storedCategories;
         CachedSettingValue<QStringList> m_storedTags;
         CachedSettingValue<int> m_maxRatioAction;
-        CachedSettingValue<QString> m_defaultSavePath;
-        CachedSettingValue<QString> m_tempPath;
+        CachedSettingValue<QString> m_savePath;
+        CachedSettingValue<QString> m_downloadPath;
         CachedSettingValue<bool> m_isSubcategoriesEnabled;
-        CachedSettingValue<bool> m_isTempPathEnabled;
+        CachedSettingValue<bool> m_isDownloadPathEnabled;
         CachedSettingValue<bool> m_isAutoTMMDisabledByDefault;
         CachedSettingValue<bool> m_isDisableAutoTMMWhenCategoryChanged;
         CachedSettingValue<bool> m_isDisableAutoTMMWhenDefaultSavePathChanged;
@@ -780,7 +786,7 @@ namespace BitTorrent
         QHash<QString, AddTorrentParams> m_downloadedTorrents;
         QHash<TorrentID, RemovingTorrentData> m_removingTorrents;
         QSet<TorrentID> m_needSaveResumeDataTorrents;
-        QStringMap m_categories;
+        QMap<QString, CategoryOptions> m_categories;
         QSet<QString> m_tags;
 
         // I/O errored torrents
@@ -800,6 +806,8 @@ namespace BitTorrent
 
         QString m_lastExternalIP;
 
+        bool m_needUpgradeDownloadPath = false;
+
         static Session *m_instance;
     };
 }

src/base/bittorrent/torrent.h

@@ -126,11 +126,10 @@ namespace BitTorrent
         virtual QString currentTracker() const = 0;
 
         // 1. savePath() - the path where all the files and subfolders of torrent are stored.
+        // 1.1 downloadPath() - the path where all the files and subfolders of torrent are stored until torrent has finished downloading.
         // 2. rootPath() - absolute path of torrent file tree (first common subfolder of torrent files); empty string if torrent has no root folder.
         // 3. contentPath() - absolute path of torrent content (root path for multifile torrents, absolute file path for singlefile torrents).
         //
-        // These methods have 'actual' parameter (defaults to false) which allow to get actual or final path variant.
-        //
         // Examples.
         // Suppose we have three torrent with following structures and save path `/home/user/torrents`:
         //
@@ -168,14 +167,15 @@ namespace BitTorrent
         // | B | /home/user/torrents/torrentB | /home/user/torrents/torrentB/subdir1/file1 |
         // | C |           <empty>            | /home/user/torrents/file1                  |
 
-        virtual QString savePath(bool actual = false) const = 0;
-        virtual QString rootPath(bool actual = false) const = 0;
-        virtual QString contentPath(bool actual = false) const = 0;
-
-        virtual bool useTempPath() const = 0;
-
         virtual bool isAutoTMMEnabled() const = 0;
         virtual void setAutoTMMEnabled(bool enabled) = 0;
+        virtual QString savePath() const = 0;
+        virtual void setSavePath(const QString &savePath) = 0;
+        virtual QString downloadPath() const = 0;
+        virtual void setDownloadPath(const QString &downloadPath) = 0;
+        virtual QString actualStorageLocation() const = 0;
+        virtual QString rootPath() const = 0;
+        virtual QString contentPath() const = 0;
         virtual QString category() const = 0;
         virtual bool belongsToCategory(const QString &category) const = 0;
         virtual bool setCategory(const QString &category) = 0;
@@ -273,7 +273,6 @@ namespace BitTorrent
         virtual void setFirstLastPiecePriority(bool enabled) = 0;
         virtual void pause() = 0;
         virtual void resume(TorrentOperatingMode mode = TorrentOperatingMode::AutoManaged) = 0;
-        virtual void move(QString path) = 0;
         virtual void forceReannounce(int index = -1) = 0;
         virtual void forceDHTAnnounce() = 0;
         virtual void forceRecheck() = 0;

src/base/bittorrent/torrentimpl.cpp

@@ -252,7 +252,8 @@ TorrentImpl::TorrentImpl(Session *session, lt::session *nativeSession
     , m_infoHash(m_nativeHandle.info_hash())
 #endif
     , m_name(params.name)
-    , m_savePath(Utils::Fs::toNativePath(params.savePath))
+    , m_savePath(params.savePath)
+    , m_downloadPath(params.downloadPath)
     , m_category(params.category)
     , m_tags(params.tags)
     , m_ratioLimit(params.ratioLimit)
@@ -261,13 +262,10 @@ TorrentImpl::TorrentImpl(Session *session, lt::session *nativeSession
     , m_contentLayout(params.contentLayout)
     , m_hasSeedStatus(params.hasSeedStatus)
     , m_hasFirstLastPiecePriority(params.firstLastPiecePriority)
-    , m_useAutoTMM(params.savePath.isEmpty())
+    , m_useAutoTMM(params.useAutoTMM)
     , m_isStopped(params.stopped)
     , m_ltAddTorrentParams(params.ltAddTorrentParams)
 {
-    if (m_useAutoTMM)
-        m_savePath = Utils::Fs::toNativePath(m_session->categorySavePath(m_category));
-
     if (m_ltAddTorrentParams.ti)
     {
         // Initialize it only if torrent is added with metadata.
@@ -293,7 +291,7 @@ TorrentImpl::TorrentImpl(Session *session, lt::session *nativeSession
     if (hasMetadata())
         applyFirstLastPiecePriority(m_hasFirstLastPiecePriority);
 
-    // TODO: Remove the following upgrade code in v.4.4
+    // TODO: Remove the following upgrade code in v4.4
     // == BEGIN UPGRADE CODE ==
     const QString spath = actualStorageLocation();
     for (int i = 0; i < filesCount(); ++i)
@@ -396,15 +394,52 @@ QString TorrentImpl::currentTracker() const
     return QString::fromStdString(m_nativeStatus.current_tracker);
 }
 
-QString TorrentImpl::savePath(bool actual) const
+QString TorrentImpl::savePath() const
 {
-    if (actual)
-        return Utils::Fs::toUniformPath(actualStorageLocation());
-    else
-        return Utils::Fs::toUniformPath(m_savePath);
+    return isAutoTMMEnabled() ? m_session->categorySavePath(category()) : m_savePath;
+}
+
+void TorrentImpl::setSavePath(const QString &path)
+{
+    Q_ASSERT(!isAutoTMMEnabled());
+
+    const QString resolvedPath = (QDir::isAbsolutePath(path) ? path : Utils::Fs::resolvePath(path, m_session->savePath()));
+    if (resolvedPath == savePath())
+        return;
+
+    m_savePath = resolvedPath;
+
+    m_session->handleTorrentNeedSaveResumeData(this);
+
+    const bool isFinished = isSeed() || m_hasSeedStatus;
+    if (isFinished)
+        moveStorage(savePath(), MoveStorageMode::KeepExistingFiles);
+}
+
+QString TorrentImpl::downloadPath() const
+{
+    return isAutoTMMEnabled() ? m_session->categoryDownloadPath(category()) : m_downloadPath;
+}
+
+void TorrentImpl::setDownloadPath(const QString &path)
+{
+    Q_ASSERT(!isAutoTMMEnabled());
+
+    const QString resolvedPath = ((path.isEmpty() || QDir::isAbsolutePath(path))
+                                  ? path : Utils::Fs::resolvePath(path, m_session->downloadPath()));
+    if (resolvedPath == m_downloadPath)
+        return;
+
+    m_downloadPath = resolvedPath;
+
+    m_session->handleTorrentNeedSaveResumeData(this);
+
+    const bool isFinished = isSeed() || m_hasSeedStatus;
+    if (!isFinished)
+        moveStorage((m_downloadPath.isEmpty() ? savePath() : m_downloadPath), MoveStorageMode::KeepExistingFiles);
 }
 
-QString TorrentImpl::rootPath(bool actual) const
+QString TorrentImpl::rootPath() const
 {
     if (!hasMetadata())
         return {};
@@ -413,19 +448,19 @@ QString TorrentImpl::rootPath(bool actual) const
     if (relativeRootPath.isEmpty())
         return {};
 
-    return QDir(savePath(actual)).absoluteFilePath(relativeRootPath);
+    return QDir(actualStorageLocation()).absoluteFilePath(relativeRootPath);
 }
 
-QString TorrentImpl::contentPath(const bool actual) const
+QString TorrentImpl::contentPath() const
 {
     if (!hasMetadata())
         return {};
 
     if (filesCount() == 1)
-        return QDir(savePath(actual)).absoluteFilePath(filePath(0));
+        return QDir(actualStorageLocation()).absoluteFilePath(filePath(0));
 
-    const QString rootPath = this->rootPath(actual);
-    return (rootPath.isEmpty() ? savePath(actual) : rootPath);
+    const QString rootPath = this->rootPath();
+    return (rootPath.isEmpty() ? actualStorageLocation() : rootPath);
 }
 
 bool TorrentImpl::isAutoTMMEnabled() const
@@ -435,19 +470,25 @@ bool TorrentImpl::isAutoTMMEnabled() const
 
 void TorrentImpl::setAutoTMMEnabled(bool enabled)
 {
-    if (m_useAutoTMM == enabled) return;
+    if (m_useAutoTMM == enabled)
+        return;
 
     m_useAutoTMM = enabled;
+    if (!m_useAutoTMM)
+    {
+        m_savePath = m_session->categorySavePath(category());
+        m_downloadPath = m_session->categoryDownloadPath(category());
+    }
+
     m_session->handleTorrentNeedSaveResumeData(this);
     m_session->handleTorrentSavingModeChanged(this);
 
-    if (m_useAutoTMM)
-        move_impl(m_session->categorySavePath(m_category), MoveStorageMode::Overwrite);
+    adjustStorageLocation();
 }
 
 QString TorrentImpl::actualStorageLocation() const
 {
-    return QString::fromStdString(m_nativeStatus.save_path);
+    return Utils::Fs::toUniformPath(QString::fromStdString(m_nativeStatus.save_path));
 }
 
 void TorrentImpl::setAutoManaged(const bool enable)
@@ -774,7 +815,7 @@ QStringList TorrentImpl::absoluteFilePaths() const
 {
     if (!hasMetadata()) return {};
 
-    const QDir saveDir {savePath(true)};
+    const QDir saveDir {actualStorageLocation()};
     QStringList res;
     res.reserve(filesCount());
     for (int i = 0; i < filesCount(); ++i)
@@ -1351,7 +1392,7 @@ bool TorrentImpl::setCategory(const QString &category)
         if (m_useAutoTMM)
         {
             if (!m_session->isDisableAutoTMMWhenCategoryChanged())
-                move_impl(m_session->categorySavePath(m_category), MoveStorageMode::Overwrite);
+                adjustStorageLocation();
             else
                 setAutoTMMEnabled(false);
         }
@@ -1360,41 +1401,6 @@ bool TorrentImpl::setCategory(const QString &category)
     return true;
 }
 
-void TorrentImpl::move(QString path)
-{
-    if (m_useAutoTMM)
-    {
-        m_useAutoTMM = false;
-        m_session->handleTorrentNeedSaveResumeData(this);
-        m_session->handleTorrentSavingModeChanged(this);
-    }
-
-    path = Utils::Fs::toUniformPath(path.trimmed());
-    if (path.isEmpty())
-        path = m_session->defaultSavePath();
-    if (!path.endsWith('/'))
-        path += '/';
-
-    move_impl(path, MoveStorageMode::KeepExistingFiles);
-}
-
-void TorrentImpl::move_impl(QString path, const MoveStorageMode mode)
-{
-    if (path == savePath()) return;
-
-    path = Utils::Fs::toNativePath(path);
-    if (!useTempPath())
-    {
-        moveStorage(path, mode);
-    }
-    else
-    {
-        m_savePath = path;
-        m_session->handleTorrentNeedSaveResumeData(this);
-        m_session->handleTorrentSavePathChanged(this);
-    }
-}
-
 void TorrentImpl::forceReannounce(const int index)
 {
     m_nativeHandle.force_reannounce(0, index);
@@ -1611,7 +1617,7 @@ void TorrentImpl::resume(const TorrentOperatingMode mode)
 
 void TorrentImpl::moveStorage(const QString &newPath, const MoveStorageMode mode)
 {
-    if (m_session->addMoveTorrentStorageJob(this, newPath, mode))
+    if (m_session->addMoveTorrentStorageJob(this, Utils::Fs::toNativePath(newPath), mode))
     {
         m_storageIsMoving = true;
         updateStatus();
@@ -1629,18 +1635,18 @@ void TorrentImpl::handleStateUpdate(const lt::torrent_status &nativeStatus)
     updateStatus(nativeStatus);
 }
 
+void TorrentImpl::handleDownloadPathChanged()
+{
+    adjustStorageLocation();
+}
+
 void TorrentImpl::handleMoveStorageJobFinished(const bool hasOutstandingJob)
 {
     m_session->handleTorrentNeedSaveResumeData(this);
     m_storageIsMoving = hasOutstandingJob;
 
     updateStatus();
-    const QString newPath = QString::fromStdString(m_nativeStatus.save_path);
-    if (!useTempPath() && (newPath != m_savePath))
-    {
-        m_savePath = newPath;
-        m_session->handleTorrentSavePathChanged(this);
-    }
+    m_session->handleTorrentSavePathChanged(this);
 
     if (!m_storageIsMoving)
     {
@@ -1717,7 +1723,7 @@ void TorrentImpl::handleTorrentCheckedAlert(const lt::torrent_checked_alert *p)
         else if (progress() == 1.0)
             m_hasSeedStatus = true;
 
-        adjustActualSavePath();
+        adjustStorageLocation();
         manageIncompleteFiles();
     }
 
@@ -1735,7 +1741,7 @@ void TorrentImpl::handleTorrentFinishedAlert(const lt::torrent_finished_alert *p
     updateStatus();
     m_hasSeedStatus = true;
 
-    adjustActualSavePath();
+    adjustStorageLocation();
     manageIncompleteFiles();
 
     m_session->handleTorrentNeedSaveResumeData(this);
@@ -1778,7 +1784,7 @@ void TorrentImpl::handleSaveResumeDataAlert(const lt::save_resume_data_alert *p)
 
         QStringList filePaths = metadata.filePaths();
         applyContentLayout(filePaths, m_contentLayout);
-        m_session->findIncompleteFiles(metadata, m_savePath, filePaths);
+        m_session->findIncompleteFiles(metadata, savePath(), downloadPath(), filePaths);
     }
     else
     {
@@ -1812,7 +1818,6 @@ void TorrentImpl::prepareResumeData(const lt::add_torrent_params &params)
     LoadTorrentParams resumeData;
     resumeData.name = m_name;
     resumeData.category = m_category;
-    resumeData.savePath = m_useAutoTMM ? "" : m_savePath;
     resumeData.tags = m_tags;
     resumeData.contentLayout = m_contentLayout;
     resumeData.ratioLimit = m_ratioLimit;
@@ -1822,6 +1827,12 @@ void TorrentImpl::prepareResumeData(const lt::add_torrent_params &params)
     resumeData.stopped = m_isStopped;
     resumeData.operatingMode = m_operatingMode;
     resumeData.ltAddTorrentParams = m_ltAddTorrentParams;
+    resumeData.useAutoTMM = m_useAutoTMM;
+    if (!resumeData.useAutoTMM)
+    {
+        resumeData.savePath = m_savePath;
+        resumeData.downloadPath = m_downloadPath;
+    }
 
     m_session->handleTorrentResumeDataReady(this, resumeData);
 }
@@ -1956,15 +1967,10 @@ void TorrentImpl::handlePerformanceAlert(const lt::performance_alert *p) const
            , Log::INFO);
 }
 
-void TorrentImpl::handleTempPathChanged()
-{
-    adjustActualSavePath();
-}
-
-void TorrentImpl::handleCategorySavePathChanged()
+void TorrentImpl::handleCategoryOptionsChanged()
 {
     if (m_useAutoTMM)
-        move_impl(m_session->categorySavePath(m_category), MoveStorageMode::Overwrite);
+        adjustStorageLocation();
 }
 
 void TorrentImpl::handleAppendExtensionToggled()
@@ -2069,39 +2075,13 @@ void TorrentImpl::manageIncompleteFiles()
     }
 }
 
-void TorrentImpl::adjustActualSavePath()
+void TorrentImpl::adjustStorageLocation()
 {
-    if (!isMoveInProgress())
-        adjustActualSavePath_impl();
-    else
-        m_moveFinishedTriggers.append([this]() { adjustActualSavePath_impl(); });
-}
-
-void TorrentImpl::adjustActualSavePath_impl()
-{
-    const bool needUseTempDir = useTempPath();
-    const QDir tempDir {m_session->torrentTempPath(m_torrentInfo)};
-    const QDir currentDir {actualStorageLocation()};
-    const QDir targetDir {needUseTempDir ? tempDir : QDir {savePath()}};
-
-    if (targetDir == currentDir) return;
+    const QString downloadPath = this->downloadPath();
+    const bool isFinished = isSeed() || m_hasSeedStatus;
+    const QDir targetDir {((isFinished || downloadPath.isEmpty()) ? savePath() : downloadPath)};
 
-    if (!needUseTempDir)
-    {
-        if ((currentDir == tempDir) && (currentDir != QDir {m_session->tempPath()}))
-        {
-            // torrent without root folder still has it in its temporary save path
-            // so its temp path isn't equal to temp path root
-            const QString currentDirPath = currentDir.absolutePath();
-            m_moveFinishedTriggers.append([currentDirPath]
-            {
-                qDebug() << "Removing torrent temp folder:" << currentDirPath;
-                Utils::Fs::smartRemoveEmptyFolderTree(currentDirPath);
-            });
-        }
-    }
-
-    moveStorage(Utils::Fs::toNativePath(targetDir.absolutePath()), MoveStorageMode::Overwrite);
+    moveStorage(targetDir.absolutePath(), MoveStorageMode::Overwrite);
 }
 
 lt::torrent_handle TorrentImpl::nativeHandle() const
@@ -2114,11 +2094,6 @@ bool TorrentImpl::isMoveInProgress() const
     return m_storageIsMoving;
 }
 
-bool TorrentImpl::useTempPath() const
-{
-    return m_session->isTempPathEnabled() && !(isSeed() || m_hasSeedStatus);
-}
-
 void TorrentImpl::updateStatus()
 {
     updateStatus(m_nativeHandle.status());

src/base/bittorrent/torrentimpl.h

@@ -99,14 +99,15 @@ namespace BitTorrent
         qlonglong wastedSize() const override;
         QString currentTracker() const override;
 
-        QString savePath(bool actual = false) const override;
-        QString rootPath(bool actual = false) const override;
-        QString contentPath(bool actual = false) const override;
-
-        bool useTempPath() const override;
-
         bool isAutoTMMEnabled() const override;
         void setAutoTMMEnabled(bool enabled) override;
+        QString savePath() const override;
+        void setSavePath(const QString &path) override;
+        QString downloadPath() const override;
+        void setDownloadPath(const QString &path) override;
+        QString actualStorageLocation() const override;
+        QString rootPath() const override;
+        QString contentPath() const override;
         QString category() const override;
         bool belongsToCategory(const QString &category) const override;
         bool setCategory(const QString &category) override;
@@ -201,7 +202,6 @@ namespace BitTorrent
         void setFirstLastPiecePriority(bool enabled) override;
         void pause() override;
         void resume(TorrentOperatingMode mode = TorrentOperatingMode::AutoManaged) override;
-        void move(QString path) override;
         void forceReannounce(int index = -1) override;
         void forceDHTAnnounce() override;
         void forceRecheck() override;
@@ -232,15 +232,13 @@ namespace BitTorrent
 
         void handleAlert(const lt::alert *a);
         void handleStateUpdate(const lt::torrent_status &nativeStatus);
-        void handleTempPathChanged();
-        void handleCategorySavePathChanged();
+        void handleDownloadPathChanged();
+        void handleCategoryOptionsChanged();
         void handleAppendExtensionToggled();
         void saveResumeData();
         void handleMoveStorageJobFinished(bool hasOutstandingJob);
         void fileSearchFinished(const QString &savePath, const QStringList &fileNames);
 
-        QString actualStorageLocation() const;
-
     private:
         using EventTrigger = std::function<void ()>;
 
@@ -272,9 +270,7 @@ namespace BitTorrent
 
         void setAutoManaged(bool enable);
 
-        void adjustActualSavePath();
-        void adjustActualSavePath_impl();
-        void move_impl(QString path, MoveStorageMode mode);
+        void adjustStorageLocation();
         void moveStorage(const QString &newPath, MoveStorageMode mode);
         void manageIncompleteFiles();
         void applyFirstLastPiecePriority(bool enabled, const QVector<DownloadPriority> &updatedFilePrio = {});
@@ -308,6 +304,7 @@ namespace BitTorrent
         // Persistent data
         QString m_name;
         QString m_savePath;
+        QString m_downloadPath;
         QString m_category;
         TagSet m_tags;
         qreal m_ratioLimit;

src/base/profile.cpp

@@ -88,8 +88,6 @@ QString Profile::location(const SpecialFolder folder) const
         break;
     }
 
-    if (!result.endsWith(QLatin1Char('/')))
-        result += QLatin1Char('/');
     return result;
 }
 

src/base/torrentfileswatcher.cpp

@@ -74,6 +74,8 @@ const QString OPTION_RECURSIVE {QStringLiteral("recursive")};
 const QString PARAM_CATEGORY {QStringLiteral("category")};
 const QString PARAM_TAGS {QStringLiteral("tags")};
 const QString PARAM_SAVEPATH {QStringLiteral("save_path")};
+const QString PARAM_USEDOWNLOADPATH {QStringLiteral("use_download_path")};
+const QString PARAM_DOWNLOADPATH {QStringLiteral("download_path")};
 const QString PARAM_OPERATINGMODE {QStringLiteral("operating_mode")};
 const QString PARAM_STOPPED {QStringLiteral("stopped")};
 const QString PARAM_SKIPCHECKING {QStringLiteral("skip_checking")};
@@ -136,6 +138,8 @@ namespace
         params.category = jsonObj.value(PARAM_CATEGORY).toString();
         params.tags = parseTagSet(jsonObj.value(PARAM_TAGS).toArray());
         params.savePath = jsonObj.value(PARAM_SAVEPATH).toString();
+        params.useDownloadPath = getOptionalBool(jsonObj, PARAM_USEDOWNLOADPATH);
+        params.downloadPath = jsonObj.value(PARAM_DOWNLOADPATH).toString();
         params.addForced = (getEnum<BitTorrent::TorrentOperatingMode>(jsonObj, PARAM_OPERATINGMODE) == BitTorrent::TorrentOperatingMode::Forced);
         params.addPaused = getOptionalBool(jsonObj, PARAM_STOPPED);
         params.skipChecking = jsonObj.value(PARAM_SKIPCHECKING).toBool();
@@ -155,6 +159,7 @@ namespace
             {PARAM_CATEGORY, params.category},
             {PARAM_TAGS, serializeTagSet(params.tags)},
             {PARAM_SAVEPATH, params.savePath},
+            {PARAM_DOWNLOADPATH, params.downloadPath},
             {PARAM_OPERATINGMODE, Utils::String::fromEnum(params.addForced
                 ? BitTorrent::TorrentOperatingMode::Forced : BitTorrent::TorrentOperatingMode::AutoManaged)},
             {PARAM_SKIPCHECKING, params.skipChecking},
@@ -170,6 +175,8 @@ namespace
             jsonObj[PARAM_CONTENTLAYOUT] = Utils::String::fromEnum(*params.contentLayout);
         if (params.useAutoTMM)
             jsonObj[PARAM_AUTOTMM] = *params.useAutoTMM;
+        if (params.useDownloadPath)
+            jsonObj[PARAM_USEDOWNLOADPATH] = *params.useDownloadPath;
 
         return jsonObj;
     }

src/base/torrentfilter.cpp

@@ -127,7 +127,7 @@ bool TorrentFilter::setCategory(const QString &category)
     if ((m_category != category)
             || (m_category.isNull() && !category.isNull())
             || (!m_category.isNull() && category.isNull()))
-            {
+    {
         m_category = category;
         return true;
     }
@@ -141,7 +141,7 @@ bool TorrentFilter::setTag(const QString &tag)
     if ((m_tag != tag)
         || (m_tag.isNull() && !tag.isNull())
         || (!m_tag.isNull() && tag.isNull()))
-        {
+    {
         m_tag = tag;
         return true;
     }

src/base/utils/fs.cpp

@@ -72,9 +72,14 @@ QString Utils::Fs::toUniformPath(const QString &path)
     return QDir::fromNativeSeparators(path);
 }
 
-/**
- * Returns the file extension part of a file name.
- */
+QString Utils::Fs::resolvePath(const QString &relativePath, const QString &basePath)
+{
+    Q_ASSERT(QDir::isRelativePath(relativePath));
+    Q_ASSERT(QDir::isAbsolutePath(basePath));
+
+    return (relativePath.isEmpty() ? basePath : QDir(basePath).absoluteFilePath(relativePath));
+}
+
 QString Utils::Fs::fileExtension(const QString &filename)
 {
     const QString name = filename.endsWith(QB_EXT)

src/base/utils/fs.h

@@ -42,6 +42,7 @@ namespace Utils::Fs
      * with the OS being run.
      */
     QString toNativePath(const QString &path);
+
     /**
      * Converts a path to a string suitable for processing.
      * This function makes sure the directory separator used is independent
@@ -50,7 +51,16 @@ namespace Utils::Fs
      */
     QString toUniformPath(const QString &path);
 
+    /**
+     * If `path is relative then resolves it against `basePath`, otherwise returns the `path` itself
+     */
+    QString resolvePath(const QString &relativePath, const QString &basePath);
+
+    /**
+     * Returns the file extension part of a file name.
+     */
     QString fileExtension(const QString &filename);
+
     QString fileName(const QString &filePath);
     QString folderName(const QString &filePath);
     qint64 computePathSize(const QString &path);

src/gui/addnewtorrentdialog.cpp

@@ -66,6 +66,7 @@ namespace
     const QString KEY_ENABLED = QStringLiteral(SETTINGS_KEY("Enabled"));
     const QString KEY_TOPLEVEL = QStringLiteral(SETTINGS_KEY("TopLevel"));
     const QString KEY_SAVEPATHHISTORY = QStringLiteral(SETTINGS_KEY("SavePathHistory"));
+    const QString KEY_DOWNLOADPATHHISTORY = QStringLiteral(SETTINGS_KEY("DownloadPathHistory"));
     const QString KEY_SAVEPATHHISTORYLENGTH = QStringLiteral(SETTINGS_KEY("SavePathHistoryLength"));
 
     // just a shortcut
@@ -118,6 +119,45 @@ namespace
         const BitTorrent::TorrentInfo &m_torrentInfo;
         QStringList &m_filePaths;
     };
+
+    // savePath is a folder, not an absolute file path
+    int indexOfPath(const FileSystemPathComboEdit *fsPathEdit, const QString &savePath)
+    {
+        const QDir saveDir {savePath};
+        for (int i = 0; i < fsPathEdit->count(); ++i)
+        {
+            if (QDir(fsPathEdit->item(i)) == saveDir)
+                return i;
+        }
+        return -1;
+    }
+
+    void setPath(FileSystemPathComboEdit *fsPathEdit, const QString &newPath)
+    {
+        int existingIndex = indexOfPath(fsPathEdit, newPath);
+        if (existingIndex < 0)
+        {
+            // New path, prepend to combo box
+            fsPathEdit->insertItem(0, newPath);
+            existingIndex = 0;
+        }
+
+        fsPathEdit->setCurrentIndex(existingIndex);
+    }
+
+    void updatePathHistory(const QString &settingsKey, const QString &path, const int maxLength)
+    {
+        // Add last used save path to the front of history
+
+        auto pathList = settings()->loadValue<QStringList>(settingsKey);
+        const int selectedSavePathIndex = pathList.indexOf(path);
+        if (selectedSavePathIndex > 0)
+            pathList.removeAt(selectedSavePathIndex);
+        if (selectedSavePathIndex != 0)
+            pathList.prepend(path);
+
+        settings()->storeValue(settingsKey, QStringList(pathList.mid(0, maxLength)));
+    }
 }
 
 const int AddNewTorrentDialog::minPathHistoryLength;
@@ -153,13 +193,19 @@ AddNewTorrentDialog::AddNewTorrentDialog(const BitTorrent::AddTorrentParams &inP
 
     const auto *session = BitTorrent::Session::instance();
 
+    m_ui->downloadPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
+    m_ui->downloadPath->setDialogCaption(tr("Choose save path"));
+    m_ui->downloadPath->setMaxVisibleItems(20);
+
     m_ui->startTorrentCheckBox->setChecked(!m_torrentParams.addPaused.value_or(session->isAddTorrentPaused()));
 
     m_ui->comboTTM->blockSignals(true); // the TreeView size isn't correct if the slot does it job at this point
-    m_ui->comboTTM->setCurrentIndex(!session->isAutoTMMDisabledByDefault());
+    m_ui->comboTTM->setCurrentIndex(session->isAutoTMMDisabledByDefault() ? 0 : 1);
     m_ui->comboTTM->blockSignals(false);
-    populateSavePathComboBox();
+
     connect(m_ui->savePath, &FileSystemPathEdit::selectedPathChanged, this, &AddNewTorrentDialog::onSavePathChanged);
+    connect(m_ui->downloadPath, &FileSystemPathEdit::selectedPathChanged, this, &AddNewTorrentDialog::onDownloadPathChanged);
+    connect(m_ui->groupBoxDownloadPath, &QGroupBox::toggled, this, &AddNewTorrentDialog::onUseDownloadPathChanged);
 
     m_ui->checkBoxRememberLastSavePath->setChecked(m_storeRememberLastSavePath);
 
@@ -174,7 +220,7 @@ AddNewTorrentDialog::AddNewTorrentDialog(const BitTorrent::AddTorrentParams &inP
     m_ui->doNotDeleteTorrentCheckBox->setVisible(TorrentFileGuard::autoDeleteMode() != TorrentFileGuard::Never);
 
     // Load categories
-    QStringList categories = session->categories().keys();
+    QStringList categories = session->categories();
     std::sort(categories.begin(), categories.end(), Utils::Compare::NaturalLessThan<Qt::CaseInsensitive>());
     const QString defaultCategory = m_storeDefaultCategory;
 
@@ -342,6 +388,7 @@ bool AddNewTorrentDialog::loadTorrentImpl()
     m_ui->labelInfohash2Data->setText(m_torrentInfo.infoHash().v2().isValid() ? m_torrentInfo.infoHash().v2().toString() : tr("N/A"));
     setupTreeview();
     TMMChanged(m_ui->comboTTM->currentIndex());
+
     return true;
 }
 
@@ -407,36 +454,6 @@ void AddNewTorrentDialog::showEvent(QShowEvent *event)
     raise();
 }
 
-void AddNewTorrentDialog::saveSavePathHistory() const
-{
-    // Get current history
-    auto history = settings()->loadValue<QStringList>(KEY_SAVEPATHHISTORY);
-    QVector<QDir> historyDirs;
-    for (const QString &path : asConst(history))
-        historyDirs << QDir {path};
-
-    const QDir selectedSavePath {m_ui->savePath->selectedPath()};
-    const int selectedSavePathIndex = historyDirs.indexOf(selectedSavePath);
-    if (selectedSavePathIndex > 0)
-        history.removeAt(selectedSavePathIndex);
-    if (selectedSavePathIndex != 0)
-        // Add last used save path to the front of history
-        history.push_front(selectedSavePath.absolutePath());
-
-    // Save history
-    settings()->storeValue(KEY_SAVEPATHHISTORY, QStringList {history.mid(0, savePathHistoryLength())});
-}
-
-// savePath is a folder, not an absolute file path
-int AddNewTorrentDialog::indexOfSavePath(const QString &savePath)
-{
-    QDir saveDir(savePath);
-    for (int i = 0; i < m_ui->savePath->count(); ++i)
-        if (QDir(m_ui->savePath->item(i)) == saveDir)
-            return i;
-    return -1;
-}
-
 void AddNewTorrentDialog::updateDiskSpaceLabel()
 {
     // Determine torrent size
@@ -470,18 +487,42 @@ void AddNewTorrentDialog::onSavePathChanged(const QString &newPath)
 {
     Q_UNUSED(newPath);
     // Remember index
-    m_oldIndex = m_ui->savePath->currentIndex();
+    m_savePathIndex = m_ui->savePath->currentIndex();
     updateDiskSpaceLabel();
 }
 
+void AddNewTorrentDialog::onDownloadPathChanged(const QString &newPath)
+{
+    Q_UNUSED(newPath);
+    // Remember index
+    const int currentPathIndex = m_ui->downloadPath->currentIndex();
+    if (currentPathIndex >= 0)
+        m_downloadPathIndex = m_ui->downloadPath->currentIndex();
+}
+
+void AddNewTorrentDialog::onUseDownloadPathChanged(const bool checked)
+{
+    m_useDownloadPath = checked;
+    m_ui->downloadPath->setCurrentIndex(checked ? m_downloadPathIndex : -1);
+}
+
 void AddNewTorrentDialog::categoryChanged(int index)
 {
     Q_UNUSED(index);
 
     if (m_ui->comboTTM->currentIndex() == 1)
     {
-        QString savePath = BitTorrent::Session::instance()->categorySavePath(m_ui->categoryComboBox->currentText());
+        const auto *btSession = BitTorrent::Session::instance();
+        const QString categoryName = m_ui->categoryComboBox->currentText();
+
+        const QString savePath = btSession->categorySavePath(categoryName);
         m_ui->savePath->setSelectedPath(Utils::Fs::toNativePath(savePath));
+
+        const QString downloadPath = btSession->categoryDownloadPath(categoryName);
+        m_ui->downloadPath->setSelectedPath(Utils::Fs::toNativePath(downloadPath));
+
+        m_ui->groupBoxDownloadPath->setChecked(!m_ui->downloadPath->selectedPath().isEmpty());
+
         updateDiskSpaceLabel();
     }
 }
@@ -511,19 +552,6 @@ void AddNewTorrentDialog::contentLayoutChanged(const int index)
     }
 }
 
-void AddNewTorrentDialog::setSavePath(const QString &newPath)
-{
-    int existingIndex = indexOfSavePath(newPath);
-    if (existingIndex < 0)
-    {
-        // New path, prepend to combo box
-        m_ui->savePath->insertItem(0, newPath);
-        existingIndex = 0;
-    }
-    m_ui->savePath->setCurrentIndex(existingIndex);
-    onSavePathChanged(newPath);
-}
-
 void AddNewTorrentDialog::saveTorrentFile()
 {
     Q_ASSERT(hasMetadata());
@@ -553,22 +581,78 @@ bool AddNewTorrentDialog::hasMetadata() const
     return m_torrentInfo.isValid();
 }
 
-void AddNewTorrentDialog::populateSavePathComboBox()
+void AddNewTorrentDialog::populateSavePaths()
 {
+    const auto *btSession = BitTorrent::Session::instance();
+
+    m_ui->savePath->blockSignals(true);
     m_ui->savePath->clear();
+    const auto savePathHistory = settings()->loadValue<QStringList>(KEY_SAVEPATHHISTORY);
+    if (savePathHistory.size() > 0)
+    {
+        for (const QString &path : savePathHistory)
+            m_ui->savePath->addItem(path);
+    }
+    else
+    {
+        m_ui->savePath->addItem(btSession->savePath());
+    }
 
-    // Load save path history
-    const auto savePathHistory {settings()->loadValue<QStringList>(KEY_SAVEPATHHISTORY)};
-    for (const QString &savePath : savePathHistory)
-        m_ui->savePath->addItem(savePath);
+    if (m_savePathIndex >= 0)
+    {
+        m_ui->savePath->setCurrentIndex(std::min(m_savePathIndex, (m_ui->savePath->count() - 1)));
+    }
+    else
+    {
+        if (!m_torrentParams.savePath.isEmpty())
+            setPath(m_ui->savePath, m_torrentParams.savePath);
+        else if (!m_storeRememberLastSavePath)
+            setPath(m_ui->savePath, btSession->savePath());
+        else
+            m_ui->savePath->setCurrentIndex(0);
+
+        m_savePathIndex = m_ui->savePath->currentIndex();
+    }
+
+    m_ui->savePath->blockSignals(false);
+
+    m_ui->downloadPath->blockSignals(true);
+    m_ui->downloadPath->clear();
+    const auto downloadPathHistory = settings()->loadValue<QStringList>(KEY_DOWNLOADPATHHISTORY);
+    if (downloadPathHistory.size() > 0)
+    {
+        for (const QString &path : downloadPathHistory)
+            m_ui->downloadPath->addItem(path);
+    }
+    else
+    {
+        m_ui->downloadPath->addItem(btSession->downloadPath());
+    }
 
-    const QString defSavePath {BitTorrent::Session::instance()->defaultSavePath()};
+    if (m_downloadPathIndex >= 0)
+    {
+        m_ui->downloadPath->setCurrentIndex(m_useDownloadPath ? std::min(m_downloadPathIndex, (m_ui->downloadPath->count() - 1)) : -1);
+        m_ui->groupBoxDownloadPath->setChecked(m_useDownloadPath);
+    }
+    else
+    {
+        const bool useDownloadPath = m_torrentParams.useDownloadPath.value_or(btSession->isDownloadPathEnabled());
+        m_ui->groupBoxDownloadPath->setChecked(useDownloadPath);
 
-    if (!m_torrentParams.savePath.isEmpty())
-        setSavePath(m_torrentParams.savePath);
-    else if (!m_storeRememberLastSavePath)
-        setSavePath(defSavePath);
-    // else last used save path will be selected since it is the first in the list
+        if (!m_torrentParams.downloadPath.isEmpty())
+            setPath(m_ui->downloadPath, m_torrentParams.downloadPath);
+        else if (!m_storeRememberLastSavePath)
+            setPath(m_ui->downloadPath, btSession->downloadPath());
+        else
+            m_ui->downloadPath->setCurrentIndex(0);
+
+        m_downloadPathIndex = m_ui->downloadPath->currentIndex();
+        if (!useDownloadPath)
+            m_ui->downloadPath->setCurrentIndex(-1);
+    }
+
+    m_ui->downloadPath->blockSignals(false);
+    m_ui->groupBoxDownloadPath->blockSignals(false);
 }
 
 void AddNewTorrentDialog::displayContentTreeMenu(const QPoint &)
@@ -692,16 +776,21 @@ void AddNewTorrentDialog::accept()
     m_torrentParams.sequential = m_ui->sequentialCheckBox->isChecked();
     m_torrentParams.firstLastPiecePriority = m_ui->firstLastCheckBox->isChecked();
 
-    QString savePath = m_ui->savePath->selectedPath();
-    if (m_ui->comboTTM->currentIndex() != 1)
-    { // 0 is Manual mode and 1 is Automatic mode. Handle all non 1 values as manual mode.
-        m_torrentParams.useAutoTMM = false;
-        m_torrentParams.savePath = savePath;
-        saveSavePathHistory();
-    }
-    else
+    const bool useAutoTMM = (m_ui->comboTTM->currentIndex() == 1); // 1 is Automatic mode. Handle all non 1 values as manual mode.
+    m_torrentParams.useAutoTMM = useAutoTMM;
+    if (!useAutoTMM)
     {
-        m_torrentParams.useAutoTMM = true;
+        const QString savePath = m_ui->savePath->selectedPath();
+        m_torrentParams.savePath = savePath;
+        updatePathHistory(KEY_SAVEPATHHISTORY, savePath, savePathHistoryLength());
+
+        m_torrentParams.useDownloadPath = m_ui->groupBoxDownloadPath->isChecked();
+        if (m_torrentParams.useDownloadPath)
+        {
+            const QString downloadPath = m_ui->downloadPath->selectedPath();
+            m_torrentParams.downloadPath = downloadPath;
+            updatePathHistory(KEY_DOWNLOADPATHHISTORY, downloadPath, savePathHistoryLength());
+        }
     }
 
     setEnabled(!m_ui->checkBoxNeverShow->isChecked());
@@ -853,18 +942,28 @@ void AddNewTorrentDialog::TMMChanged(int index)
 {
     if (index != 1)
     { // 0 is Manual mode and 1 is Automatic mode. Handle all non 1 values as manual mode.
-        populateSavePathComboBox();
+        populateSavePaths();
         m_ui->groupBoxSavePath->setEnabled(true);
-        m_ui->savePath->blockSignals(false);
-        m_ui->savePath->setCurrentIndex(m_oldIndex < m_ui->savePath->count() ? m_oldIndex : m_ui->savePath->count() - 1);
     }
     else
     {
+        const auto *session = BitTorrent::Session::instance();
+
         m_ui->groupBoxSavePath->setEnabled(false);
+
         m_ui->savePath->blockSignals(true);
         m_ui->savePath->clear();
-        QString savePath = BitTorrent::Session::instance()->categorySavePath(m_ui->categoryComboBox->currentText());
+        const QString savePath = session->categorySavePath(m_ui->categoryComboBox->currentText());
         m_ui->savePath->addItem(savePath);
+
+        m_ui->downloadPath->blockSignals(true);
+        m_ui->downloadPath->clear();
+        const QString downloadPath = session->categoryDownloadPath(m_ui->categoryComboBox->currentText());
+        m_ui->downloadPath->addItem(downloadPath);
+
+        m_ui->groupBoxDownloadPath->blockSignals(true);
+        m_ui->groupBoxDownloadPath->setChecked(!downloadPath.isEmpty());
+
         updateDiskSpaceLabel();
     }
 }

src/gui/addnewtorrentdialog.h

@@ -81,6 +81,8 @@ private slots:
     void displayContentTreeMenu(const QPoint &);
     void updateDiskSpaceLabel();
     void onSavePathChanged(const QString &newPath);
+    void onDownloadPathChanged(const QString &newPath);
+    void onUseDownloadPathChanged(bool checked);
     void updateMetadata(const BitTorrent::TorrentInfo &metadata);
     void handleDownloadFinished(const Net::DownloadResult &downloadResult);
     void TMMChanged(int index);
@@ -97,14 +99,11 @@ private:
     bool loadTorrentFile(const QString &torrentPath);
     bool loadTorrentImpl();
     bool loadMagnet(const BitTorrent::MagnetUri &magnetUri);
-    void populateSavePathComboBox();
-    void saveSavePathHistory() const;
-    int indexOfSavePath(const QString &savePath);
+    void populateSavePaths();
     void loadState();
     void saveState();
     void setMetadataProgressIndicator(bool visibleIndicator, const QString &labelText = {});
     void setupTreeview();
-    void setSavePath(const QString &newPath);
     void saveTorrentFile();
     bool hasMetadata() const;
 
@@ -115,7 +114,9 @@ private:
     PropListDelegate *m_contentDelegate = nullptr;
     BitTorrent::MagnetUri m_magnetURI;
     BitTorrent::TorrentInfo m_torrentInfo;
-    int m_oldIndex = 0;
+    int m_savePathIndex = -1;
+    int m_downloadPathIndex = -1;
+    bool m_useDownloadPath = false;
     std::unique_ptr<TorrentFileGuard> m_torrentGuard;
     BitTorrent::AddTorrentParams m_torrentParams;
 

src/gui/addnewtorrentdialog.ui

@@ -83,13 +83,48 @@
           <item>
            <widget class="FileSystemPathComboEdit" name="savePath" native="true"/>
           </item>
-          <item alignment="Qt::AlignRight">
-           <widget class="QCheckBox" name="checkBoxRememberLastSavePath">
-            <property name="text">
-             <string>Remember last used save path</string>
+          <item>
+           <widget class="QGroupBox" name="groupBoxDownloadPath">
+            <property name="title">
+             <string>Use another path for incomplete torrent</string>
             </property>
+            <property name="checkable">
+             <bool>true</bool>
+            </property>
+            <property name="checked">
+             <bool>false</bool>
+            </property>
+            <layout class="QVBoxLayout" name="verticalLayout_4">
+             <item>
+              <widget class="FileSystemPathComboEdit" name="downloadPath" native="true"/>
+             </item>
+            </layout>
            </widget>
           </item>
+          <item>
+           <layout class="QHBoxLayout" name="layoutRememberLastSavePath">
+            <item>
+             <spacer name="horizontalSpacer_5">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+            <item>
+             <widget class="QCheckBox" name="checkBoxRememberLastSavePath">
+              <property name="text">
+               <string>Remember last used save path</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
          </layout>
         </widget>
        </item>

src/gui/categoryfiltermodel.cpp

@@ -404,40 +404,33 @@ void CategoryFilterModel::populate()
 
     // Uncategorized torrents
     using Torrent = BitTorrent::Torrent;
-    m_rootItem->addChild(
-                UID_UNCATEGORIZED
-                , new CategoryModelItem(
-                    nullptr, tr("Uncategorized")
-                    , std::count_if(torrents.begin(), torrents.end()
-                                    , [](Torrent *torrent) { return torrent->category().isEmpty(); })));
+    const int torrentsCount = std::count_if(torrents.begin(), torrents.end()
+                                            , [](Torrent *torrent) { return torrent->category().isEmpty(); });
+    m_rootItem->addChild(UID_UNCATEGORIZED, new CategoryModelItem(nullptr, tr("Uncategorized"), torrentsCount));
 
-    using Torrent = BitTorrent::Torrent;
-    const QStringMap categories = session->categories();
-    for (auto i = categories.cbegin(); i != categories.cend(); ++i)
+    using BitTorrent::Torrent;
+    for (const QString &categoryName : asConst(session->categories()))
     {
-        const QString &category = i.key();
         if (m_isSubcategoriesEnabled)
         {
             CategoryModelItem *parent = m_rootItem;
-            for (const QString &subcat : asConst(session->expandCategory(category)))
+            for (const QString &subcat : asConst(session->expandCategory(categoryName)))
             {
                 const QString subcatName = shortName(subcat);
                 if (!parent->hasChild(subcatName))
                 {
-                    new CategoryModelItem(
-                                parent, subcatName
-                                , std::count_if(torrents.cbegin(), torrents.cend()
-                                                , [subcat](Torrent *torrent) { return torrent->category() == subcat; }));
+                    const int torrentsCount = std::count_if(torrents.cbegin(), torrents.cend()
+                                                            , [subcat](Torrent *torrent) { return torrent->category() == subcat; });
+                    new CategoryModelItem(parent, subcatName, torrentsCount);
                 }
                 parent = parent->child(subcatName);
             }
         }
         else
         {
-            new CategoryModelItem(
-                        m_rootItem, category
-                        , std::count_if(torrents.begin(), torrents.end()
-                                        , [category](Torrent *torrent) { return torrent->belongsToCategory(category); }));
+            const int torrentsCount = std::count_if(torrents.begin(), torrents.end()
+                                                    , [categoryName](Torrent *torrent) { return torrent->belongsToCategory(categoryName); });
+            new CategoryModelItem(m_rootItem, categoryName, torrentsCount);
         }
     }
 }

src/gui/categoryfilterwidget.cpp

@@ -215,7 +215,7 @@ void CategoryFilterWidget::removeCategory()
 void CategoryFilterWidget::removeUnusedCategories()
 {
     auto session = BitTorrent::Session::instance();
-    for (const QString &category : asConst(session->categories().keys()))
+    for (const QString &category : asConst(session->categories()))
     {
         if (model()->data(static_cast<CategoryFilterProxyModel *>(model())->index(category), Qt::UserRole) == 0)
             session->removeCategory(category);

src/gui/optionsdialog.cpp

@@ -354,7 +354,7 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     connect(m_ui->comboTorrentCategoryChanged, qComboBoxCurrentIndexChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->comboCategoryDefaultPathChanged, qComboBoxCurrentIndexChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->comboCategoryChanged, qComboBoxCurrentIndexChanged, this, &ThisType::enableApplyButton);
-    connect(m_ui->textTempPath, &FileSystemPathEdit::selectedPathChanged, this, &ThisType::enableApplyButton);
+    connect(m_ui->textDownloadPath, &FileSystemPathEdit::selectedPathChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->checkAppendqB, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkPreallocateAll, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkRecursiveDownload, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
@@ -372,8 +372,8 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     connect(m_ui->textExportDirFin, &FileSystemPathEdit::selectedPathChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->actionTorrentDlOnDblClBox, qComboBoxCurrentIndexChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->actionTorrentFnOnDblClBox, qComboBoxCurrentIndexChanged, this, &ThisType::enableApplyButton);
-    connect(m_ui->checkTempFolder, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
-    connect(m_ui->checkTempFolder, &QAbstractButton::toggled, m_ui->textTempPath, &QWidget::setEnabled);
+    connect(m_ui->checkUseDownloadPath, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
+    connect(m_ui->checkUseDownloadPath, &QAbstractButton::toggled, m_ui->textDownloadPath, &QWidget::setEnabled);
     connect(m_ui->addWatchedFolderButton, &QAbstractButton::clicked, this, &ThisType::enableApplyButton);
     connect(m_ui->removeWatchedFolderButton, &QAbstractButton::clicked, this, &ThisType::enableApplyButton);
     connect(m_ui->groupMailNotification, &QGroupBox::toggled, this, &ThisType::enableApplyButton);
@@ -559,8 +559,8 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     m_ui->textSavePath->setDialogCaption(tr("Choose a save directory"));
     m_ui->textSavePath->setMode(FileSystemPathEdit::Mode::DirectorySave);
 
-    m_ui->textTempPath->setDialogCaption(tr("Choose a save directory"));
-    m_ui->textTempPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
+    m_ui->textDownloadPath->setDialogCaption(tr("Choose a save directory"));
+    m_ui->textDownloadPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
 
     // disable mouse wheel event on widgets to avoid mis-selection
     auto *wheelEventEater = new WheelEventEater(this);
@@ -731,14 +731,14 @@ void OptionsDialog::saveOptions()
     auto session = BitTorrent::Session::instance();
 
     // Downloads preferences
-    session->setDefaultSavePath(Utils::Fs::expandPathAbs(m_ui->textSavePath->selectedPath()));
+    session->setSavePath(Utils::Fs::expandPathAbs(m_ui->textSavePath->selectedPath()));
     session->setSubcategoriesEnabled(m_ui->checkUseSubcategories->isChecked());
     session->setAutoTMMDisabledByDefault(m_ui->comboSavingMode->currentIndex() == 0);
     session->setDisableAutoTMMWhenCategoryChanged(m_ui->comboTorrentCategoryChanged->currentIndex() == 1);
     session->setDisableAutoTMMWhenCategorySavePathChanged(m_ui->comboCategoryChanged->currentIndex() == 1);
     session->setDisableAutoTMMWhenDefaultSavePathChanged(m_ui->comboCategoryDefaultPathChanged->currentIndex() == 1);
-    session->setTempPathEnabled(m_ui->checkTempFolder->isChecked());
-    session->setTempPath(Utils::Fs::expandPathAbs(m_ui->textTempPath->selectedPath()));
+    session->setDownloadPathEnabled(m_ui->checkUseDownloadPath->isChecked());
+    session->setDownloadPath(Utils::Fs::expandPathAbs(m_ui->textDownloadPath->selectedPath()));
     session->setAppendExtensionEnabled(m_ui->checkAppendqB->isChecked());
     session->setPreallocationEnabled(preAllocateAllFiles());
     pref->disableRecursiveDownload(!m_ui->checkRecursiveDownload->isChecked());
@@ -997,16 +997,16 @@ void OptionsDialog::loadOptions()
     m_ui->deleteTorrentBox->setChecked(autoDeleteMode != TorrentFileGuard::Never);
     m_ui->deleteCancelledTorrentBox->setChecked(autoDeleteMode == TorrentFileGuard::Always);
 
-    m_ui->textSavePath->setSelectedPath(session->defaultSavePath());
+    m_ui->textSavePath->setSelectedPath(session->savePath());
     m_ui->checkUseSubcategories->setChecked(session->isSubcategoriesEnabled());
     m_ui->comboSavingMode->setCurrentIndex(!session->isAutoTMMDisabledByDefault());
     m_ui->comboTorrentCategoryChanged->setCurrentIndex(session->isDisableAutoTMMWhenCategoryChanged());
     m_ui->comboCategoryChanged->setCurrentIndex(session->isDisableAutoTMMWhenCategorySavePathChanged());
     m_ui->comboCategoryDefaultPathChanged->setCurrentIndex(session->isDisableAutoTMMWhenDefaultSavePathChanged());
-    m_ui->checkTempFolder->setChecked(session->isTempPathEnabled());
-    m_ui->textTempPath->setEnabled(m_ui->checkTempFolder->isChecked());
-    m_ui->textTempPath->setEnabled(m_ui->checkTempFolder->isChecked());
-    m_ui->textTempPath->setSelectedPath(Utils::Fs::toNativePath(session->tempPath()));
+    m_ui->checkUseDownloadPath->setChecked(session->isDownloadPathEnabled());
+    m_ui->textDownloadPath->setEnabled(m_ui->checkUseDownloadPath->isChecked());
+    m_ui->textDownloadPath->setEnabled(m_ui->checkUseDownloadPath->isChecked());
+    m_ui->textDownloadPath->setSelectedPath(Utils::Fs::toNativePath(session->downloadPath()));
     m_ui->checkAppendqB->setChecked(session->isAppendExtensionEnabled());
     m_ui->checkPreallocateAll->setChecked(session->isPreallocationEnabled());
     m_ui->checkRecursiveDownload->setChecked(!pref->recursiveDownloadDisabled());

src/gui/optionsdialog.ui

@@ -1105,23 +1105,26 @@ Manual: Various torrent properties (e.g. save path) must be assigned manually</s
                </item>
                <item>
                 <layout class="QGridLayout" name="gridLayout_4">
-                 <item row="1" column="1">
-                  <widget class="FileSystemPathLineEdit" name="textTempPath" native="true"/>
-                 </item>
-                 <item row="3" column="0">
-                  <widget class="QCheckBox" name="checkExportDirFin">
+                 <item row="0" column="0">
+                  <widget class="QLabel" name="labelSavePath">
                    <property name="text">
-                    <string>Copy .torrent files for finished downloads to:</string>
+                    <string>Default Save Path:</string>
                    </property>
                   </widget>
                  </item>
-                 <item row="0" column="0">
-                  <widget class="QLabel" name="labelSavePath">
+                 <item row="0" column="1">
+                  <widget class="FileSystemPathLineEdit" name="textSavePath" native="true"/>
+                 </item>
+                 <item row="1" column="0">
+                  <widget class="QCheckBox" name="checkUseDownloadPath">
                    <property name="text">
-                    <string>Default Save Path:</string>
+                    <string>Use another path for incomplete torrents:</string>
                    </property>
                   </widget>
                  </item>
+                 <item row="1" column="1">
+                  <widget class="FileSystemPathLineEdit" name="textDownloadPath" native="true"/>
+                 </item>
                  <item row="2" column="0">
                   <widget class="QCheckBox" name="checkExportDir">
                    <property name="text">
@@ -1129,21 +1132,18 @@ Manual: Various torrent properties (e.g. save path) must be assigned manually</s
                    </property>
                   </widget>
                  </item>
-                 <item row="1" column="0">
-                  <widget class="QCheckBox" name="checkTempFolder">
-                   <property name="text">
-                    <string>Keep incomplete torrents in:</string>
-                   </property>
-                  </widget>
+                 <item row="2" column="1">
+                  <widget class="FileSystemPathLineEdit" name="textExportDir" native="true"/>
                  </item>
                  <item row="3" column="1">
                   <widget class="FileSystemPathLineEdit" name="textExportDirFin" native="true"/>
                  </item>
-                 <item row="0" column="1">
-                  <widget class="FileSystemPathLineEdit" name="textSavePath" native="true"/>
-                 </item>
-                 <item row="2" column="1">
-                  <widget class="FileSystemPathLineEdit" name="textExportDir" native="true"/>
+                 <item row="3" column="0">
+                  <widget class="QCheckBox" name="checkExportDirFin">
+                   <property name="text">
+                    <string>Copy .torrent files for finished downloads to:</string>
+                   </property>
+                  </widget>
                  </item>
                 </layout>
                </item>
@@ -3490,8 +3490,8 @@ Use ';' to split multiple entries. Can use wildcard '*'.</string>
   <tabstop>checkAdditionDialog</tabstop>
   <tabstop>checkAdditionDialogFront</tabstop>
   <tabstop>checkPreallocateAll</tabstop>
-  <tabstop>checkTempFolder</tabstop>
-  <tabstop>textTempPath</tabstop>
+  <tabstop>checkUseDownloadPath</tabstop>
+  <tabstop>textDownloadPath</tabstop>
   <tabstop>checkAppendqB</tabstop>
   <tabstop>scanFoldersView</tabstop>
   <tabstop>addWatchedFolderButton</tabstop>

src/gui/properties/propertieswidget.cpp

@@ -581,11 +581,12 @@ void PropertiesWidget::loadUrlSeeds()
 
 QString PropertiesWidget::getFullPath(const QModelIndex &index) const
 {
+    const QDir saveDir {m_torrent->actualStorageLocation()};
+
     if (m_propListModel->itemType(index) == TorrentContentModelItem::FileType)
     {
         const int fileIdx = m_propListModel->getFileIndex(index);
         const QString filename {m_torrent->filePath(fileIdx)};
-        const QDir saveDir {m_torrent->savePath(true)};
         const QString fullPath {Utils::Fs::expandPath(saveDir.absoluteFilePath(filename))};
         return fullPath;
     }
@@ -596,7 +597,6 @@ QString PropertiesWidget::getFullPath(const QModelIndex &index) const
     for (QModelIndex modelIdx = m_propListModel->parent(nameIndex); modelIdx.isValid(); modelIdx = modelIdx.parent())
         folderPath.prepend(modelIdx.data().toString() + '/');
 
-    const QDir saveDir {m_torrent->savePath(true)};
     const QString fullPath {Utils::Fs::expandPath(saveDir.absoluteFilePath(folderPath))};
     return fullPath;
 }

src/gui/rss/automatedrssdownloader.cpp

@@ -331,7 +331,7 @@ void AutomatedRssDownloader::clearRuleDefinitionBox()
 void AutomatedRssDownloader::initCategoryCombobox()
 {
     // Load torrent categories
-    QStringList categories = BitTorrent::Session::instance()->categories().keys();
+    QStringList categories = BitTorrent::Session::instance()->categories();
     std::sort(categories.begin(), categories.end(), Utils::Compare::NaturalLessThan<Qt::CaseInsensitive>());
     m_ui->comboCategory->addItem("");
     m_ui->comboCategory->addItems(categories);

src/gui/torrentcategorydialog.cpp

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2017  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2017, 2021  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -32,6 +32,7 @@
 #include <QPushButton>
 
 #include "base/bittorrent/session.h"
+#include "base/utils/fs.h"
 #include "ui_torrentcategorydialog.h"
 
 TorrentCategoryDialog::TorrentCategoryDialog(QWidget *parent)
@@ -39,15 +40,20 @@ TorrentCategoryDialog::TorrentCategoryDialog(QWidget *parent)
     , m_ui {new Ui::TorrentCategoryDialog}
 {
     m_ui->setupUi(this);
+
     m_ui->comboSavePath->setMode(FileSystemPathEdit::Mode::DirectorySave);
     m_ui->comboSavePath->setDialogCaption(tr("Choose save path"));
 
+    m_ui->comboDownloadPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
+    m_ui->comboDownloadPath->setDialogCaption(tr("Choose download path"));
+    m_ui->comboDownloadPath->setEnabled(false);
+    m_ui->labelDownloadPath->setEnabled(false);
+
     // disable save button
     m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
-    connect(m_ui->textCategoryName, &QLineEdit::textChanged, this, [this](const QString &text)
-    {
-        m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(!text.isEmpty());
-    });
+
+    connect(m_ui->textCategoryName, &QLineEdit::textChanged, this, &TorrentCategoryDialog::categoryNameChanged);
+    connect(m_ui->comboUseDownloadPath, &QComboBox::currentIndexChanged, this, &TorrentCategoryDialog::useDownloadPathChanged);
 }
 
 TorrentCategoryDialog::~TorrentCategoryDialog()
@@ -57,20 +63,21 @@ TorrentCategoryDialog::~TorrentCategoryDialog()
 
 QString TorrentCategoryDialog::createCategory(QWidget *parent, const QString &parentCategoryName)
 {
+    using BitTorrent::CategoryOptions;
     using BitTorrent::Session;
 
-    QString newCategoryName {parentCategoryName};
+    QString newCategoryName = parentCategoryName;
     if (!newCategoryName.isEmpty())
         newCategoryName += QLatin1Char('/');
     newCategoryName += tr("New Category");
 
-    TorrentCategoryDialog dialog(parent);
+    TorrentCategoryDialog dialog {parent};
     dialog.setCategoryName(newCategoryName);
     while (dialog.exec() == TorrentCategoryDialog::Accepted)
     {
         newCategoryName = dialog.categoryName();
 
-        if (!BitTorrent::Session::isValidCategoryName(newCategoryName))
+        if (!Session::isValidCategoryName(newCategoryName))
         {
             QMessageBox::critical(
                         parent, tr("Invalid category name")
@@ -78,7 +85,7 @@ QString TorrentCategoryDialog::createCategory(QWidget *parent, const QString &pa
                              "Category name cannot start/end with '/'.\n"
                              "Category name cannot contain '//' sequence."));
         }
-        else if (BitTorrent::Session::instance()->categories().contains(newCategoryName))
+        else if (Session::instance()->categories().contains(newCategoryName))
         {
             QMessageBox::critical(
                         parent, tr("Category creation error")
@@ -87,7 +94,7 @@ QString TorrentCategoryDialog::createCategory(QWidget *parent, const QString &pa
         }
         else
         {
-            Session::instance()->addCategory(newCategoryName, dialog.savePath());
+            Session::instance()->addCategory(newCategoryName, dialog.categoryOptions());
             return newCategoryName;
         }
     }
@@ -105,10 +112,10 @@ void TorrentCategoryDialog::editCategory(QWidget *parent, const QString &categor
     dialog->setAttribute(Qt::WA_DeleteOnClose);
     dialog->setCategoryNameEditable(false);
     dialog->setCategoryName(categoryName);
-    dialog->setSavePath(Session::instance()->categories()[categoryName]);
+    dialog->setCategoryOptions(Session::instance()->categoryOptions(categoryName));
     connect(dialog, &TorrentCategoryDialog::accepted, parent, [dialog, categoryName]()
     {
-        Session::instance()->editCategory(categoryName, dialog->savePath());
+        Session::instance()->editCategory(categoryName, dialog->categoryOptions());
     });
     dialog->open();
 }
@@ -128,12 +135,59 @@ void TorrentCategoryDialog::setCategoryName(const QString &categoryName)
     m_ui->textCategoryName->setText(categoryName);
 }
 
-QString TorrentCategoryDialog::savePath() const
+BitTorrent::CategoryOptions TorrentCategoryDialog::categoryOptions() const
 {
-    return m_ui->comboSavePath->selectedPath();
+    BitTorrent::CategoryOptions categoryOptions;
+    categoryOptions.savePath = m_ui->comboSavePath->selectedPath();
+    if (m_ui->comboUseDownloadPath->currentIndex() == 1)
+        categoryOptions.downloadPath = {true, m_ui->comboDownloadPath->selectedPath()};
+    else if (m_ui->comboUseDownloadPath->currentIndex() == 2)
+        categoryOptions.downloadPath = {false};
+
+    return categoryOptions;
+}
+
+void TorrentCategoryDialog::setCategoryOptions(const BitTorrent::CategoryOptions &categoryOptions)
+{
+    m_ui->comboSavePath->setSelectedPath(categoryOptions.savePath);
+    if (categoryOptions.downloadPath)
+    {
+        m_ui->comboUseDownloadPath->setCurrentIndex(categoryOptions.downloadPath->enabled ? 1 : 2);
+        m_ui->comboDownloadPath->setSelectedPath(categoryOptions.downloadPath->enabled ? categoryOptions.downloadPath->path : QString());
+    }
+    else
+    {
+        m_ui->comboUseDownloadPath->setCurrentIndex(0);
+        m_ui->comboDownloadPath->setSelectedPath({});
+    }
+}
+
+void TorrentCategoryDialog::categoryNameChanged(const QString &categoryName)
+{
+    const QString categoryPath = Utils::Fs::toValidFileSystemName(categoryName, true);
+    const auto *btSession = BitTorrent::Session::instance();
+    m_ui->comboSavePath->setPlaceholder(Utils::Fs::resolvePath(categoryPath, btSession->savePath()));
+
+    const int index = m_ui->comboUseDownloadPath->currentIndex();
+    const bool useDownloadPath = (index == 1) || ((index == 0) && BitTorrent::Session::instance()->isDownloadPathEnabled());
+    if (useDownloadPath)
+        m_ui->comboDownloadPath->setPlaceholder(Utils::Fs::resolvePath(categoryPath, btSession->downloadPath()));
+
+    m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(!categoryName.isEmpty());
 }
 
-void TorrentCategoryDialog::setSavePath(const QString &savePath)
+void TorrentCategoryDialog::useDownloadPathChanged(const int index)
 {
-    m_ui->comboSavePath->setSelectedPath(savePath);
+    if (const QString selectedPath = m_ui->comboDownloadPath->selectedPath(); !selectedPath.isEmpty())
+        m_lastEnteredDownloadPath = selectedPath;
+
+    m_ui->labelDownloadPath->setEnabled(index == 1);
+    m_ui->comboDownloadPath->setEnabled(index == 1);
+    m_ui->comboDownloadPath->setSelectedPath((index == 1) ? m_lastEnteredDownloadPath : QString());
+
+    const QString categoryName = m_ui->textCategoryName->text();
+    const QString categoryPath = Utils::Fs::resolvePath(Utils::Fs::toValidFileSystemName(categoryName, true)
+                                             , BitTorrent::Session::instance()->downloadPath());
+    const bool useDownloadPath = (index == 1) || ((index == 0) && BitTorrent::Session::instance()->isDownloadPathEnabled());
+    m_ui->comboDownloadPath->setPlaceholder(useDownloadPath ? categoryPath : QString());
 }

src/gui/torrentcategorydialog.h

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2017  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2017, 2021  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -30,6 +30,11 @@
 
 #include <QDialog>
 
+namespace BitTorrent
+{
+    struct CategoryOptions;
+}
+
 namespace Ui
 {
     class TorrentCategoryDialog;
@@ -50,9 +55,14 @@ public:
     void setCategoryNameEditable(bool editable);
     QString categoryName() const;
     void setCategoryName(const QString &categoryName);
-    QString savePath() const;
-    void setSavePath(const QString &savePath);
+    void setCategoryOptions(const BitTorrent::CategoryOptions &categoryOptions);
+    BitTorrent::CategoryOptions categoryOptions() const;
+
+private slots:
+    void categoryNameChanged(const QString &categoryName);
+    void useDownloadPathChanged(int index);
 
 private:
     Ui::TorrentCategoryDialog *m_ui;
+    QString m_lastEnteredDownloadPath;
 };

src/gui/torrentcategorydialog.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>400</width>
-    <height>100</height>
+    <width>493</width>
+    <height>208</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -15,7 +15,7 @@
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
-    <spacer name="verticalSpacer_2">
+    <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
      </property>
@@ -29,10 +29,13 @@
    </item>
    <item>
     <layout class="QGridLayout" name="gridLayout">
-     <item row="0" column="0">
-      <widget class="QLabel" name="labelCategoryName">
-       <property name="text">
-        <string>Name:</string>
+     <item row="1" column="1">
+      <widget class="FileSystemPathComboEdit" name="comboSavePath" native="true">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
        </property>
       </widget>
      </item>
@@ -46,20 +49,99 @@
        </property>
       </widget>
      </item>
-     <item row="1" column="1">
-      <widget class="FileSystemPathComboEdit" name="comboSavePath" native="true">
-       <property name="sizePolicy">
-        <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
-         <horstretch>0</horstretch>
-         <verstretch>0</verstretch>
-        </sizepolicy>
+     <item row="0" column="0">
+      <widget class="QLabel" name="labelCategoryName">
+       <property name="text">
+        <string>Name:</string>
        </property>
       </widget>
      </item>
     </layout>
    </item>
    <item>
-    <spacer name="verticalSpacer">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Save path for incomplete torrents:</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <widget class="QLabel" name="labelUseDownloadPath">
+          <property name="text">
+           <string>Use another path for incomplete torrents:</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="comboUseDownloadPath">
+          <property name="maxVisibleItems">
+           <number>3</number>
+          </property>
+          <item>
+           <property name="text">
+            <string>Default</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>Yes</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>No</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>40</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_2">
+        <item>
+         <widget class="QLabel" name="labelDownloadPath">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="text">
+           <string>Path:</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="FileSystemPathComboEdit" name="comboDownloadPath" native="true">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <spacer name="verticalSpacer_2">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
      </property>

src/gui/torrentoptionsdialog.cpp

@@ -63,19 +63,33 @@ TorrentOptionsDialog::TorrentOptionsDialog(QWidget *parent, const QVector<BitTor
     , m_storeDialogSize {SETTINGS_KEY("Size")}
     , m_currentCategoriesString {QString::fromLatin1("--%1--").arg(tr("Currently used categories"))}
 {
+    Q_ASSERT(!torrents.empty());
+
     m_ui->setupUi(this);
 
     m_ui->savePath->setMode(FileSystemPathEdit::Mode::DirectorySave);
     m_ui->savePath->setDialogCaption(tr("Choose save path"));
-    Q_ASSERT(!torrents.empty());
+    m_ui->downloadPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
+    m_ui->downloadPath->setDialogCaption(tr("Choose save path"));
 
     const auto *session = BitTorrent::Session::instance();
-    bool allSameUpLimit = true, allSameDownLimit = true, allSameRatio = true, allSameSeedingTime = true
-            , allTorrentsArePrivate = true, allSameDHT = true, allSamePEX = true, allSameLSD = true
-            , allSameSequential = true, allSameFirstLastPieces = true, allSameAutoTMM = true, allSameSavePath = true;
+    bool allSameUpLimit = true;
+    bool allSameDownLimit = true;
+    bool allSameRatio = true;
+    bool allSameSeedingTime = true;
+    bool allTorrentsArePrivate = true;
+    bool allSameDHT = true;
+    bool allSamePEX = true;
+    bool allSameLSD = true;
+    bool allSameSequential = true;
+    bool allSameFirstLastPieces = true;
+    bool allSameAutoTMM = true;
+    bool allSameSavePath = true;
+    bool allSameDownloadPath = true;
 
     const bool isFirstTorrentAutoTMMEnabled = torrents[0]->isAutoTMMEnabled();
     const QString firstTorrentSavePath = torrents[0]->savePath();
+    const QString firstTorrentDownloadPath = torrents[0]->downloadPath();
     const QString firstTorrentCategory = torrents[0]->category();
 
     const int firstTorrentUpLimit = qMax(0, torrents[0]->uploadLimit());
@@ -105,6 +119,11 @@ TorrentOptionsDialog::TorrentOptionsDialog(QWidget *parent, const QVector<BitTor
             if (torrent->savePath() != firstTorrentSavePath)
                 allSameSavePath = false;
         }
+        if (allSameDownloadPath)
+        {
+            if (torrent->downloadPath() != firstTorrentDownloadPath)
+                allSameDownloadPath = false;
+        }
         if (m_allSameCategory)
         {
             if (torrent->category() != firstTorrentCategory)
@@ -170,6 +189,16 @@ TorrentOptionsDialog::TorrentOptionsDialog(QWidget *parent, const QVector<BitTor
     if (allSameSavePath)
         m_ui->savePath->setSelectedPath(firstTorrentSavePath);
 
+    if (allSameDownloadPath)
+    {
+        m_ui->downloadPath->setSelectedPath(firstTorrentDownloadPath);
+        m_ui->checkUseDownloadPath->setChecked(!firstTorrentDownloadPath.isEmpty());
+    }
+    else
+    {
+        m_ui->checkUseDownloadPath->setCheckState(Qt::PartiallyChecked);
+    }
+
     if (!m_allSameCategory)
     {
         m_ui->comboCategory->addItem(m_currentCategoriesString);
@@ -183,7 +212,7 @@ TorrentOptionsDialog::TorrentOptionsDialog(QWidget *parent, const QVector<BitTor
     }
     m_ui->comboCategory->addItem(QString());
 
-    m_categories = session->categories().keys();
+    m_categories = session->categories();
     std::sort(m_categories.begin(), m_categories.end(), Utils::Compare::NaturalLessThan<Qt::CaseInsensitive>());
     for (const QString &category : asConst(m_categories))
     {
@@ -322,12 +351,14 @@ TorrentOptionsDialog::TorrentOptionsDialog(QWidget *parent, const QVector<BitTor
     m_initialValues =
     {
         m_ui->savePath->selectedPath(),
+        m_ui->downloadPath->selectedPath(),
         m_ui->comboCategory->currentText(),
         getRatio(),
         getSeedingTime(),
         m_ui->spinUploadLimit->value(),
         m_ui->spinDownloadLimit->value(),
         m_ui->checkAutoTMM->checkState(),
+        m_ui->checkUseDownloadPath->checkState(),
         m_ui->checkDisableDHT->checkState(),
         m_ui->checkDisablePEX->checkState(),
         m_ui->checkDisableLSD->checkState(),
@@ -337,9 +368,11 @@ TorrentOptionsDialog::TorrentOptionsDialog(QWidget *parent, const QVector<BitTor
 
     // Needs to be called after the initial values struct is initialized
     handleTMMChanged();
+    handleUseDownloadPathChanged();
     handleRatioTypeChanged();
 
     connect(m_ui->checkAutoTMM, &QCheckBox::clicked, this, &TorrentOptionsDialog::handleTMMChanged);
+    connect(m_ui->checkUseDownloadPath, &QCheckBox::clicked, this, &TorrentOptionsDialog::handleUseDownloadPathChanged);
     connect(m_ui->comboCategory, &QComboBox::activated, this, &TorrentOptionsDialog::handleCategoryChanged);
 
     // Sync up/down speed limit sliders with their corresponding spinboxes
@@ -378,11 +411,28 @@ void TorrentOptionsDialog::accept()
         BitTorrent::Torrent *torrent = session->findTorrent(id);
         if (!torrent) continue;
 
-        const QString savePath = m_ui->savePath->selectedPath();
         if (m_initialValues.autoTMM != m_ui->checkAutoTMM->checkState())
             torrent->setAutoTMMEnabled(m_ui->checkAutoTMM->isChecked());
-        if (!m_ui->checkAutoTMM->isChecked() && (m_initialValues.savePath != savePath))
-            torrent->move(Utils::Fs::expandPathAbs(savePath));
+
+        if (m_ui->checkAutoTMM->checkState() == Qt::Unchecked)
+        {
+            const QString savePath = m_ui->savePath->selectedPath();
+            if (m_initialValues.savePath != savePath)
+                torrent->setSavePath(Utils::Fs::expandPathAbs(savePath));
+
+            const Qt::CheckState useDownloadPathState = m_ui->checkUseDownloadPath->checkState();
+            if (useDownloadPathState == Qt::Checked)
+            {
+                const QString downloadPath = m_ui->downloadPath->selectedPath();
+                if (m_initialValues.downloadPath != downloadPath)
+                    torrent->setDownloadPath(Utils::Fs::expandPathAbs(downloadPath));
+            }
+            else if (useDownloadPathState == Qt::Unchecked)
+            {
+                torrent->setDownloadPath(QString());
+            }
+        }
+
         const QString category = m_ui->comboCategory->currentText();
         // index 0 is always the current category
         if ((m_initialValues.category != category) || (m_ui->comboCategory->currentIndex() != 0))
@@ -485,33 +535,48 @@ void TorrentOptionsDialog::handleTMMChanged()
 {
     if (m_ui->checkAutoTMM->checkState() == Qt::Unchecked)
     {
-        m_ui->labelSavePath->setEnabled(true);
-        m_ui->savePath->setEnabled(true);
+        m_ui->groupBoxSavePath->setEnabled(true);
         m_ui->savePath->setSelectedPath(Utils::Fs::toNativePath(m_initialValues.savePath));
+        m_ui->downloadPath->setSelectedPath(Utils::Fs::toNativePath(m_initialValues.downloadPath));
+        m_ui->checkUseDownloadPath->setCheckState(m_initialValues.useDownloadPath);
     }
     else
     {
-        m_ui->labelSavePath->setEnabled(false);
-        m_ui->savePath->setEnabled(false);
+        m_ui->groupBoxSavePath->setEnabled(false);
         if (m_ui->checkAutoTMM->checkState() == Qt::Checked)
         {
             if (!m_allSameCategory && (m_ui->comboCategory->currentIndex() == 0))
             {
                 m_ui->savePath->setSelectedPath(QString());
+                m_ui->downloadPath->setSelectedPath(QString());
+                m_ui->checkUseDownloadPath->setCheckState(Qt::PartiallyChecked);
             }
             else
             {
                 const QString savePath = BitTorrent::Session::instance()->categorySavePath(m_ui->comboCategory->currentText());
                 m_ui->savePath->setSelectedPath(Utils::Fs::toNativePath(savePath));
+                const QString downloadPath = BitTorrent::Session::instance()->categoryDownloadPath(m_ui->comboCategory->currentText());
+                m_ui->downloadPath->setSelectedPath(Utils::Fs::toNativePath(downloadPath));
+                m_ui->checkUseDownloadPath->setChecked(!downloadPath.isEmpty());
             }
         }
         else // partially checked
         {
             m_ui->savePath->setSelectedPath(QString());
+            m_ui->downloadPath->setSelectedPath(QString());
+            m_ui->checkUseDownloadPath->setCheckState(Qt::PartiallyChecked);
         }
     }
 }
 
+void TorrentOptionsDialog::handleUseDownloadPathChanged()
+{
+    const bool isChecked = m_ui->checkUseDownloadPath->checkState() == Qt::Checked;
+    m_ui->downloadPath->setEnabled(isChecked);
+    if (isChecked && m_ui->downloadPath->selectedPath().isEmpty())
+        m_ui->downloadPath->setSelectedPath(BitTorrent::Session::instance()->downloadPath());
+}
+
 void TorrentOptionsDialog::handleRatioTypeChanged()
 {
     if ((m_initialValues.ratio == MIXED_SHARE_LIMITS) || (m_initialValues.seedingTime == MIXED_SHARE_LIMITS))

src/gui/torrentoptionsdialog.h

@@ -62,6 +62,7 @@ public slots:
 private slots:
     void handleCategoryChanged(int index);
     void handleTMMChanged();
+    void handleUseDownloadPathChanged();
 
     void handleUpSpeedLimitChanged();
     void handleDownSpeedLimitChanged();
@@ -82,12 +83,14 @@ private:
     struct
     {
         QString savePath;
+        QString downloadPath;
         QString category;
         qreal ratio;
         int seedingTime;
         int upSpeedLimit;
         int downSpeedLimit;
         Qt::CheckState autoTMM;
+        Qt::CheckState useDownloadPath;
         Qt::CheckState disableDHT;
         Qt::CheckState disablePEX;
         Qt::CheckState disableLSD;

src/gui/torrentoptionsdialog.ui

@@ -13,7 +13,7 @@
   <property name="windowTitle">
    <string>Torrent Options</string>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout_2">
+  <layout class="QVBoxLayout" name="verticalLayout_3">
    <item>
     <widget class="QCheckBox" name="checkAutoTMM">
      <property name="toolTip">
@@ -24,33 +24,35 @@
      </property>
     </widget>
    </item>
+   <item>
+    <widget class="QGroupBox" name="groupBoxSavePath">
+     <property name="title">
+      <string>Save at</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <widget class="FileSystemPathComboEdit" name="savePath" native="true"/>
+      </item>
+      <item>
+       <widget class="QCheckBox" name="checkUseDownloadPath">
+        <property name="text">
+         <string>Use another path for incomplete torrent</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="FileSystemPathComboEdit" name="downloadPath" native="true">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
    <item>
     <layout class="QGridLayout" name="gridLayout_4">
-     <item row="0" column="0">
-      <widget class="QLabel" name="labelSavePath">
-       <property name="text">
-        <string>Save path:</string>
-       </property>
-      </widget>
-     </item>
      <item row="0" column="1">
-      <widget class="FileSystemPathLineEdit" name="savePath" native="true">
-       <property name="sizePolicy">
-        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
-         <horstretch>0</horstretch>
-         <verstretch>0</verstretch>
-        </sizepolicy>
-       </property>
-      </widget>
-     </item>
-     <item row="1" column="0">
-      <widget class="QLabel" name="labelCategory">
-       <property name="text">
-        <string>Category:</string>
-       </property>
-      </widget>
-     </item>
-     <item row="1" column="1">
       <widget class="QComboBox" name="comboCategory">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
@@ -69,6 +71,13 @@
        </property>
       </widget>
      </item>
+     <item row="0" column="0">
+      <widget class="QLabel" name="labelCategory">
+       <property name="text">
+        <string>Category:</string>
+       </property>
+      </widget>
+     </item>
     </layout>
    </item>
    <item>
@@ -310,7 +319,7 @@
  </widget>
  <customwidgets>
   <customwidget>
-   <class>FileSystemPathLineEdit</class>
+   <class>FileSystemPathComboEdit</class>
    <extends>QWidget</extends>
    <header>gui/fspathedit.h</header>
    <container>1</container>

src/gui/transferlistwidget.cpp

@@ -106,12 +106,12 @@ namespace
     void openDestinationFolder(const BitTorrent::Torrent *const torrent)
     {
 #ifdef Q_OS_MACOS
-        MacUtils::openFiles({torrent->contentPath(true)});
+        MacUtils::openFiles({torrent->contentPath()});
 #else
         if (torrent->filesCount() == 1)
-            Utils::Gui::openFolderSelect(torrent->contentPath(true));
+            Utils::Gui::openFolderSelect(torrent->contentPath());
         else
-            Utils::Gui::openPath(torrent->contentPath(true));
+            Utils::Gui::openPath(torrent->contentPath());
 #endif
     }
 
@@ -525,22 +525,22 @@ void TransferListWidget::openSelectedTorrentsFolder() const
     // folders prehilighted for opening, so we use a custom method.
     for (BitTorrent::Torrent *const torrent : asConst(getSelectedTorrents()))
     {
-        QString path = torrent->contentPath(true);
-        pathsList.insert(path);
+        const QString contentPath = QDir(torrent->actualStorageLocation()).absoluteFilePath(torrent->contentPath());
+        pathsList.insert(contentPath);
     }
     MacUtils::openFiles(pathsList);
 #else
     for (BitTorrent::Torrent *const torrent : asConst(getSelectedTorrents()))
     {
-        QString path = torrent->contentPath(true);
-        if (!pathsList.contains(path))
+        const QString contentPath = torrent->contentPath();
+        if (!pathsList.contains(contentPath))
         {
             if (torrent->filesCount() == 1)
-                Utils::Gui::openFolderSelect(path);
+                Utils::Gui::openFolderSelect(contentPath);
             else
-                Utils::Gui::openPath(path);
+                Utils::Gui::openPath(contentPath);
         }
-        pathsList.insert(path);
+        pathsList.insert(contentPath);
     }
 #endif // Q_OS_MACOS
 }

src/gui/watchedfolderoptionsdialog.cpp

@@ -44,6 +44,7 @@ WatchedFolderOptionsDialog::WatchedFolderOptionsDialog(
     : QDialog {parent}
     , m_ui {new Ui::WatchedFolderOptionsDialog}
     , m_savePath {watchedFolderOptions.addTorrentParams.savePath}
+    , m_downloadPath {watchedFolderOptions.addTorrentParams.downloadPath}
     , m_storeDialogSize {SETTINGS_KEY("DialogSize")}
 {
     m_ui->setupUi(this);
@@ -51,13 +52,18 @@ WatchedFolderOptionsDialog::WatchedFolderOptionsDialog(
     m_ui->savePath->setMode(FileSystemPathEdit::Mode::DirectorySave);
     m_ui->savePath->setDialogCaption(tr("Choose save path"));
 
+    const auto *session = BitTorrent::Session::instance();
+
+    m_ui->downloadPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
+    m_ui->downloadPath->setDialogCaption(tr("Choose save path"));
+    m_ui->groupBoxDownloadPath->setChecked(watchedFolderOptions.addTorrentParams.useDownloadPath.value_or(session->isDownloadPathEnabled()));
+
     connect(m_ui->comboTTM, qOverload<int>(&QComboBox::currentIndexChanged), this, &WatchedFolderOptionsDialog::onTMMChanged);
     connect(m_ui->categoryComboBox, qOverload<int>(&QComboBox::currentIndexChanged), this, &WatchedFolderOptionsDialog::onCategoryChanged);
 
     m_ui->checkBoxRecursive->setChecked(watchedFolderOptions.recursive);
-    populateSavePathComboBox();
+    populateSavePaths();
 
-    const auto *session = BitTorrent::Session::instance();
     const BitTorrent::AddTorrentParams &torrentParams = watchedFolderOptions.addTorrentParams;
     m_ui->startTorrentCheckBox->setChecked(!torrentParams.addPaused.value_or(session->isAddTorrentPaused()));
     m_ui->skipCheckingCheckBox->setChecked(torrentParams.skipChecking);
@@ -66,7 +72,7 @@ WatchedFolderOptionsDialog::WatchedFolderOptionsDialog(
         static_cast<int>(torrentParams.contentLayout.value_or(session->torrentContentLayout())));
 
     // Load categories
-    QStringList categories = session->categories().keys();
+    QStringList categories = session->categories();
     std::sort(categories.begin(), categories.end(), Utils::Compare::NaturalLessThan<Qt::CaseInsensitive>());
 
     if (!torrentParams.category.isEmpty())
@@ -96,10 +102,16 @@ TorrentFilesWatcher::WatchedFolderOptions WatchedFolderOptionsDialog::watchedFol
     watchedFolderOptions.recursive = m_ui->checkBoxRecursive->isChecked();
 
     BitTorrent::AddTorrentParams &params = watchedFolderOptions.addTorrentParams;
-    params.useAutoTMM = (m_ui->comboTTM->currentIndex() == 1);
-    if (!*params.useAutoTMM)
+    const bool useAutoTMM = (m_ui->comboTTM->currentIndex() == 1);
+    if (!useAutoTMM)
+    {
         params.savePath = m_ui->savePath->selectedPath();
-    params.category = m_ui->categoryComboBox->currentText();;
+        params.useDownloadPath = m_ui->groupBoxDownloadPath->isChecked();
+        if (params.useDownloadPath)
+            params.downloadPath = m_ui->downloadPath->selectedPath();
+    }
+    params.useAutoTMM = useAutoTMM;
+    params.category = m_ui->categoryComboBox->currentText();
     params.addPaused = !m_ui->startTorrentCheckBox->isChecked();
     params.skipChecking = m_ui->skipCheckingCheckBox->isChecked();
     params.contentLayout = static_cast<BitTorrent::TorrentContentLayout>(m_ui->contentLayoutComboBox->currentIndex());
@@ -121,34 +133,60 @@ void WatchedFolderOptionsDialog::onCategoryChanged(const int index)
 {
     Q_UNUSED(index);
 
-    const QString category = m_ui->categoryComboBox->currentText();
     if (m_ui->comboTTM->currentIndex() == 1)
     {
-        const QString savePath = BitTorrent::Session::instance()->categorySavePath(category);
+        const auto *btSession = BitTorrent::Session::instance();
+        const QString categoryName = m_ui->categoryComboBox->currentText();
+
+        const QString savePath = btSession->categorySavePath(categoryName);
         m_ui->savePath->setSelectedPath(Utils::Fs::toNativePath(savePath));
+
+        const QString finishedSavePath = btSession->categoryDownloadPath(categoryName);
+        m_ui->downloadPath->setSelectedPath(Utils::Fs::toNativePath(finishedSavePath));
+
+        m_ui->groupBoxDownloadPath->setChecked(!finishedSavePath.isEmpty());
     }
 }
 
-void WatchedFolderOptionsDialog::populateSavePathComboBox()
+void WatchedFolderOptionsDialog::populateSavePaths()
 {
-    const QString defSavePath {BitTorrent::Session::instance()->defaultSavePath()};
-    m_ui->savePath->setSelectedPath(!m_savePath.isEmpty() ? m_savePath : defSavePath);
+    const auto *btSession = BitTorrent::Session::instance();
+
+    const QString defaultSavePath {btSession->savePath()};
+    m_ui->savePath->setSelectedPath(!m_savePath.isEmpty() ? m_savePath : defaultSavePath);
+
+    const QString defaultFinishedSavePath {btSession->downloadPath()};
+    m_ui->downloadPath->setSelectedPath(!m_downloadPath.isEmpty() ? m_downloadPath : defaultFinishedSavePath);
+
+    m_ui->groupBoxDownloadPath->setChecked(m_useDownloadPath);
 }
 
 void WatchedFolderOptionsDialog::onTMMChanged(const int index)
 {
     if (index != 1)
     { // 0 is Manual mode and 1 is Automatic mode. Handle all non 1 values as manual mode.
-        populateSavePathComboBox();
+        populateSavePaths();
         m_ui->groupBoxSavePath->setEnabled(true);
         m_ui->savePath->blockSignals(false);
+        m_ui->downloadPath->blockSignals(false);
     }
     else
     {
         m_ui->groupBoxSavePath->setEnabled(false);
+
+        const auto *btSession = BitTorrent::Session::instance();
+
         m_ui->savePath->blockSignals(true);
         m_savePath = m_ui->savePath->selectedPath();
-        const QString savePath = BitTorrent::Session::instance()->categorySavePath(m_ui->categoryComboBox->currentText());
+        const QString savePath = btSession->categorySavePath(m_ui->categoryComboBox->currentText());
         m_ui->savePath->setSelectedPath(savePath);
+
+        m_ui->downloadPath->blockSignals(true);
+        m_downloadPath = m_ui->downloadPath->selectedPath();
+        const QString finishedSavePath = btSession->categoryDownloadPath(m_ui->categoryComboBox->currentText());
+        m_ui->downloadPath->setSelectedPath(finishedSavePath);
+
+        m_useDownloadPath = m_ui->groupBoxDownloadPath->isChecked();
+        m_ui->groupBoxDownloadPath->setChecked(!finishedSavePath.isEmpty());
     }
 }

src/gui/watchedfolderoptionsdialog.h

@@ -50,7 +50,7 @@ public:
     TorrentFilesWatcher::WatchedFolderOptions watchedFolderOptions() const;
 
 private:
-    void populateSavePathComboBox();
+    void populateSavePaths();
     void loadState();
     void saveState();
     void onTMMChanged(int index);
@@ -58,5 +58,7 @@ private:
 
     Ui::WatchedFolderOptionsDialog *m_ui;
     QString m_savePath;
+    QString m_downloadPath;
+    bool m_useDownloadPath = false;
     SettingValue<QSize> m_storeDialogSize;
 };

src/gui/watchedfolderoptionsdialog.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>462</width>
-    <height>325</height>
+    <height>364</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -119,6 +119,24 @@
              <item>
               <widget class="FileSystemPathLineEdit" name="savePath" native="true"/>
              </item>
+             <item>
+              <widget class="QGroupBox" name="groupBoxDownloadPath">
+               <property name="title">
+                <string>Use another path for incomplete torrents</string>
+               </property>
+               <property name="checkable">
+                <bool>true</bool>
+               </property>
+               <property name="checked">
+                <bool>false</bool>
+               </property>
+               <layout class="QVBoxLayout" name="verticalLayout_4">
+                <item>
+                 <widget class="FileSystemPathLineEdit" name="downloadPath" native="true"/>
+                </item>
+               </layout>
+              </widget>
+             </item>
             </layout>
            </widget>
           </item>
@@ -296,6 +314,12 @@
    <header>gui/fspathedit.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>FileSystemPathLineEdit</class>
+   <extends>QWidget</extends>
+   <header>gui/fspathedit.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections>

src/webui/api/appcontroller.cpp

@@ -112,9 +112,9 @@ void AppController::preferencesAction()
     data["torrent_changed_tmm_enabled"] = !session->isDisableAutoTMMWhenCategoryChanged();
     data["save_path_changed_tmm_enabled"] = !session->isDisableAutoTMMWhenDefaultSavePathChanged();
     data["category_changed_tmm_enabled"] = !session->isDisableAutoTMMWhenCategorySavePathChanged();
-    data["save_path"] = Utils::Fs::toNativePath(session->defaultSavePath());
-    data["temp_path_enabled"] = session->isTempPathEnabled();
-    data["temp_path"] = Utils::Fs::toNativePath(session->tempPath());
+    data["save_path"] = Utils::Fs::toNativePath(session->savePath());
+    data["temp_path_enabled"] = session->isDownloadPathEnabled();
+    data["temp_path"] = Utils::Fs::toNativePath(session->downloadPath());
     data["export_dir"] = Utils::Fs::toNativePath(session->torrentExportDirectory());
     data["export_dir_fin"] = Utils::Fs::toNativePath(session->finishedTorrentExportDirectory());
 
@@ -399,11 +399,11 @@ void AppController::setPreferencesAction()
     if (hasKey("category_changed_tmm_enabled"))
         session->setDisableAutoTMMWhenCategorySavePathChanged(!it.value().toBool());
     if (hasKey("save_path"))
-        session->setDefaultSavePath(it.value().toString());
+        session->setSavePath(it.value().toString());
     if (hasKey("temp_path_enabled"))
-        session->setTempPathEnabled(it.value().toBool());
+        session->setDownloadPathEnabled(it.value().toBool());
     if (hasKey("temp_path"))
-        session->setTempPath(it.value().toString());
+        session->setDownloadPath(it.value().toString());
     if (hasKey("export_dir"))
         session->setTorrentExportDirectory(it.value().toString());
     if (hasKey("export_dir_fin"))
@@ -866,7 +866,7 @@ void AppController::setPreferencesAction()
 
 void AppController::defaultSavePathAction()
 {
-    setResult(BitTorrent::Session::instance()->defaultSavePath());
+    setResult(BitTorrent::Session::instance()->savePath());
 }
 
 void AppController::networkInterfaceListAction()

src/webui/api/freediskspacechecker.cpp

@@ -33,6 +33,6 @@
 
 void FreeDiskSpaceChecker::check()
 {
-    const qint64 freeDiskSpace = Utils::Fs::freeDiskSpaceOnPath(BitTorrent::Session::instance()->defaultSavePath());
+    const qint64 freeDiskSpace = Utils::Fs::freeDiskSpaceOnPath(BitTorrent::Session::instance()->savePath());
     emit checked(freeDiskSpace);
 }

src/webui/api/serialize/serialize_torrent.cpp

@@ -131,6 +131,7 @@ QVariantMap serialize(const BitTorrent::Torrent &torrent)
         {KEY_TORRENT_SUPER_SEEDING, torrent.superSeeding()},
         {KEY_TORRENT_FORCE_START, torrent.isForced()},
         {KEY_TORRENT_SAVE_PATH, Utils::Fs::toNativePath(torrent.savePath())},
+        {KEY_TORRENT_DOWNLOAD_PATH, Utils::Fs::toNativePath(torrent.downloadPath())},
         {KEY_TORRENT_CONTENT_PATH, Utils::Fs::toNativePath(torrent.contentPath())},
         {KEY_TORRENT_ADDED_ON, torrent.addedTime().toSecsSinceEpoch()},
         {KEY_TORRENT_COMPLETION_ON, torrent.completedTime().toSecsSinceEpoch()},

src/webui/api/serialize/serialize_torrent.h

@@ -61,6 +61,7 @@ inline const char KEY_TORRENT_TAGS[] = "tags";
 inline const char KEY_TORRENT_SUPER_SEEDING[] = "super_seeding";
 inline const char KEY_TORRENT_FORCE_START[] = "force_start";
 inline const char KEY_TORRENT_SAVE_PATH[] = "save_path";
+inline const char KEY_TORRENT_DOWNLOAD_PATH[] = "download_path";
 inline const char KEY_TORRENT_CONTENT_PATH[] = "content_path";
 inline const char KEY_TORRENT_ADDED_ON[] = "added_on";
 inline const char KEY_TORRENT_COMPLETION_ON[] = "completion_on";

src/webui/api/synccontroller.cpp

@@ -209,6 +209,7 @@ namespace
             case QMetaType::ULongLong:
             case QMetaType::UInt:
             case QMetaType::QDateTime:
+            case QMetaType::Nullptr:
                 if (prevData[key] != value)
                     syncData[key] = value;
                 break;
@@ -426,6 +427,7 @@ SyncController::~SyncController()
 //  - "uploaded_session": Amount of data uploaded since program open
 //  - "amount_left": Amount of data left to download
 //  - "save_path": Torrent save path
+//  - "download_path": Torrent download path
 //  - "completed": Amount of data completed
 //  - "max_ratio": Upload max share ratio
 //  - "max_seeding_time": Upload max seeding time
@@ -496,15 +498,13 @@ void SyncController::maindataAction()
     data["torrents"] = torrents;
 
     QVariantHash categories;
-    const QStringMap categoriesList = session->categories();
-    for (auto it = categoriesList.cbegin(); it != categoriesList.cend(); ++it)
+    const QStringList categoriesList = session->categories();
+    for (const auto &categoryName : categoriesList)
     {
-        const QString &key = it.key();
-        categories[key] = QVariantMap
-        {
-            {"name", key},
-            {"savePath", it.value()}
-        };
+        const BitTorrent::CategoryOptions categoryOptions = session->categoryOptions(categoryName);
+        QJsonObject category = categoryOptions.toJSON();
+        category.insert(QLatin1String("name"), categoryName);
+        categories[categoryName] = category.toVariantMap();
     }
     data["categories"] = categories;
 

src/webui/api/torrentscontroller.cpp

@@ -39,6 +39,7 @@
 #include <QRegularExpression>
 #include <QUrl>
 
+#include "base/bittorrent/categoryoptions.h"
 #include "base/bittorrent/common.h"
 #include "base/bittorrent/downloadpriority.h"
 #include "base/bittorrent/infohash.h"
@@ -103,6 +104,7 @@ const char KEY_PROP_ADDITION_DATE[] = "addition_date";
 const char KEY_PROP_COMPLETION_DATE[] = "completion_date";
 const char KEY_PROP_CREATION_DATE[] = "creation_date";
 const char KEY_PROP_SAVE_PATH[] = "save_path";
+const char KEY_PROP_DOWNLOAD_PATH[] = "download_path";
 const char KEY_PROP_COMMENT[] = "comment";
 
 // File keys
@@ -372,6 +374,7 @@ void TorrentsController::infoAction()
 //   - "completion_date": Torrent completion date
 //   - "creation_date": Torrent creation date
 //   - "save_path": Torrent save path
+//   - "download_path": Torrent download path
 //   - "comment": Torrent comment
 void TorrentsController::propertiesAction()
 {
@@ -430,6 +433,7 @@ void TorrentsController::propertiesAction()
         dataDict[KEY_PROP_CREATION_DATE] = -1;
     }
     dataDict[KEY_PROP_SAVE_PATH] = Utils::Fs::toNativePath(torrent->savePath());
+    dataDict[KEY_PROP_DOWNLOAD_PATH] = Utils::Fs::toNativePath(torrent->downloadPath());
     dataDict[KEY_PROP_COMMENT] = torrent->comment();
 
     setResult(dataDict);
@@ -643,6 +647,8 @@ void TorrentsController::addAction()
     const bool firstLastPiece = parseBool(params()["firstLastPiecePrio"]).value_or(false);
     const std::optional<bool> addPaused = parseBool(params()["paused"]);
     const QString savepath = params()["savepath"].trimmed();
+    const QString downloadPath = params()["downloadPath"].trimmed();
+    const std::optional<bool> useDownloadPath = parseBool(params()["useDownloadPath"]);
     const QString category = params()["category"];
     const QStringList tags = params()["tags"].split(',', Qt::SkipEmptyParts);
     const QString torrentName = params()["rename"].trimmed();
@@ -682,6 +688,8 @@ void TorrentsController::addAction()
     addTorrentParams.addPaused = addPaused;
     addTorrentParams.contentLayout = contentLayout;
     addTorrentParams.savePath = savepath;
+    addTorrentParams.downloadPath = downloadPath;
+    addTorrentParams.useDownloadPath = useDownloadPath;
     addTorrentParams.category = category;
     addTorrentParams.tags.insert(tags.cbegin(), tags.cend());
     addTorrentParams.name = torrentName;
@@ -1095,7 +1103,58 @@ void TorrentsController::setLocationAction()
     {
         LogMsg(tr("WebUI Set location: moving \"%1\", from \"%2\" to \"%3\"")
             .arg(torrent->name(), Utils::Fs::toNativePath(torrent->savePath()), Utils::Fs::toNativePath(newLocation)));
-        torrent->move(Utils::Fs::expandPathAbs(newLocation));
+        torrent->setAutoTMMEnabled(false);
+        torrent->setSavePath(Utils::Fs::expandPathAbs(newLocation));
+    });
+}
+
+void TorrentsController::setSavePathAction()
+{
+    requireParams({"id", "path"});
+
+    const QStringList ids {params()["id"].split('|')};
+    const QString newPath {params()["path"]};
+
+    if (newPath.isEmpty())
+        throw APIError(APIErrorType::BadParams, tr("Save path cannot be empty"));
+
+    // try to create the directory if it does not exist
+    if (!QDir(newPath).mkpath("."))
+        throw APIError(APIErrorType::Conflict, tr("Cannot create target directory"));
+
+    // check permissions
+    if (!QFileInfo(newPath).isWritable())
+        throw APIError(APIErrorType::AccessDenied, tr("Cannot write to directory"));
+
+    applyToTorrents(ids, [&newPath](BitTorrent::Torrent *const torrent)
+    {
+        if (!torrent->isAutoTMMEnabled())
+            torrent->setSavePath(newPath);
+    });
+}
+
+void TorrentsController::setDownloadPathAction()
+{
+    requireParams({"id", "path"});
+
+    const QStringList ids {params()["id"].split('|')};
+    const QString newPath {params()["path"]};
+
+    if (!newPath.isEmpty())
+    {
+        // try to create the directory if it does not exist
+        if (!QDir(newPath).mkpath("."))
+            throw APIError(APIErrorType::Conflict, tr("Cannot create target directory"));
+
+        // check permissions
+        if (!QFileInfo(newPath).isWritable())
+            throw APIError(APIErrorType::AccessDenied, tr("Cannot write to directory"));
+    }
+
+    applyToTorrents(ids, [&newPath](BitTorrent::Torrent *const torrent)
+    {
+        if (!torrent->isAutoTMMEnabled())
+            torrent->setDownloadPath(newPath);
     });
 }
 
@@ -1164,16 +1223,24 @@ void TorrentsController::createCategoryAction()
 {
     requireParams({"category"});
 
-    const QString category {params()["category"]};
-    const QString savePath {params()["savePath"]};
-
+    const QString category = params()["category"];
     if (category.isEmpty())
         throw APIError(APIErrorType::BadParams, tr("Category cannot be empty"));
 
     if (!BitTorrent::Session::isValidCategoryName(category))
         throw APIError(APIErrorType::Conflict, tr("Incorrect category name"));
 
-    if (!BitTorrent::Session::instance()->addCategory(category, savePath))
+    const QString savePath = params()["savePath"];
+    const auto useDownloadPath = parseBool(params()["downloadPathEnabled"]);
+    BitTorrent::CategoryOptions categoryOptions;
+    categoryOptions.savePath = savePath;
+    if (useDownloadPath.has_value())
+    {
+        const QString downloadPath = params()["downloadPath"];
+        categoryOptions.downloadPath = {useDownloadPath.value(), downloadPath};
+    }
+
+    if (!BitTorrent::Session::instance()->addCategory(category, categoryOptions))
         throw APIError(APIErrorType::Conflict, tr("Unable to create category"));
 }
 
@@ -1181,13 +1248,21 @@ void TorrentsController::editCategoryAction()
 {
     requireParams({"category", "savePath"});
 
-    const QString category {params()["category"]};
-    const QString savePath {params()["savePath"]};
-
+    const QString category = params()["category"];
     if (category.isEmpty())
         throw APIError(APIErrorType::BadParams, tr("Category cannot be empty"));
 
-    if (!BitTorrent::Session::instance()->editCategory(category, savePath))
+    const QString savePath = params()["savePath"];
+    const auto useDownloadPath = parseBool(params()["downloadPathEnabled"]);
+    BitTorrent::CategoryOptions categoryOptions;
+    categoryOptions.savePath = savePath;
+    if (useDownloadPath.has_value())
+    {
+        const QString downloadPath = params()["downloadPath"];
+        categoryOptions.downloadPath = {useDownloadPath.value(), downloadPath};
+    }
+
+    if (!BitTorrent::Session::instance()->editCategory(category, categoryOptions))
         throw APIError(APIErrorType::Conflict, tr("Unable to edit category"));
 }
 
@@ -1202,16 +1277,16 @@ void TorrentsController::removeCategoriesAction()
 
 void TorrentsController::categoriesAction()
 {
+    const auto session = BitTorrent::Session::instance();
+
     QJsonObject categories;
-    const QStringMap categoriesMap = BitTorrent::Session::instance()->categories();
-    for (auto it = categoriesMap.cbegin(); it != categoriesMap.cend(); ++it)
+    const QStringList categoriesList = session->categories();
+    for (const auto &categoryName : categoriesList)
     {
-        const auto &key = it.key();
-        categories[key] = QJsonObject
-        {
-            {"name", key},
-            {"savePath", it.value()}
-        };
+        const BitTorrent::CategoryOptions categoryOptions = session->categoryOptions(categoryName);
+        QJsonObject category = categoryOptions.toJSON();
+        category.insert(QLatin1String("name"), categoryName);
+        categories[categoryName] = category;
     }
 
     setResult(categories);

src/webui/api/torrentscontroller.h

@@ -78,6 +78,8 @@ private slots:
     void topPrioAction();
     void bottomPrioAction();
     void setLocationAction();
+    void setSavePathAction();
+    void setDownloadPathAction();
     void setAutoManagementAction();
     void setSuperSeedingAction();
     void setForceStartAction();

src/webui/webapplication.h

@@ -43,7 +43,7 @@
 #include "base/utils/net.h"
 #include "base/utils/version.h"
 
-inline const Utils::Version<int, 3, 2> API_VERSION {2, 8, 3};
+inline const Utils::Version<int, 3, 2> API_VERSION {2, 8, 4};
 
 class APIController;
 class WebApplication;