Add a DeviceManager which holds all the listers and connected devices. Make FilesystemDevices use their own LibraryWatcher.

src/CMakeLists.txt

@@ -55,7 +55,7 @@ set(SOURCES
   devices/connecteddevice.cpp
   devices/devicekitlister.cpp
   devices/devicelister.cpp
-  devices/devicetest.cpp
+  devices/devicemanager.cpp
   devices/filesystemdevice.cpp
 
   engines/enginebase.cpp
@@ -177,7 +177,7 @@ set(HEADERS
   devices/connecteddevice.h
   devices/devicekitlister.h
   devices/devicelister.h
-  devices/devicetest.h
+  devices/devicemanager.h
   devices/filesystemdevice.h
 
   engines/enginebase.h

src/core/database.cpp

@@ -29,6 +29,9 @@
 const char* Database::kDatabaseFilename = "clementine.db";
 const int Database::kSchemaVersion = 13;
 
+int Database::sNextConnectionId = 1;
+QMutex Database::sNextConnectionIdMutex;
+
 Database::Token::Token(const QString& token, int start, int end)
     : token(token),
       start_offset(start),
@@ -320,6 +323,11 @@ Database::Database(QObject* parent, const QString& database_name)
     injected_database_name_(database_name),
     query_hash_(0)
 {
+  {
+    QMutexLocker l(&sNextConnectionIdMutex);
+    connection_id_ = sNextConnectionId ++;
+  }
+
   directory_ = QDir::toNativeSeparators(
       QDir::homePath() + "/.config/" + QCoreApplication::organizationName());
 
@@ -337,8 +345,9 @@ QSqlDatabase Database::Connect() {
     }
   }
 
-  const QString connection_id("thread_" + QString::number(
-      reinterpret_cast<quint64>(QThread::currentThread())));
+  const QString connection_id =
+      QString("%1_thread_%2").arg(connection_id_).arg(
+        reinterpret_cast<quint64>(QThread::currentThread()));
 
   // Try to find an existing connection for this thread
   QSqlDatabase db = QSqlDatabase::database(connection_id);

src/core/database.h

@@ -60,6 +60,13 @@ class Database : public QObject {
   QMutex connect_mutex_;
   QMutex mutex_;
 
+  // This ID makes the QSqlDatabase name unique to the object as well as the
+  // thread
+  int connection_id_;
+
+  static QMutex sNextConnectionIdMutex;
+  static int sNextConnectionId;
+
   // Used by tests
   QString injected_database_name_;
 

src/devices/connecteddevice.cpp

@@ -15,18 +15,25 @@
 */
 
 #include "connecteddevice.h"
+#include "devicemanager.h"
 #include "core/database.h"
 #include "library/library.h"
 #include "library/librarybackend.h"
 #include "library/librarymodel.h"
 
-ConnectedDevice::ConnectedDevice(QObject *parent)
-  : QObject(parent),
-    lister_(NULL),
+#include <QtDebug>
+
+ConnectedDevice::ConnectedDevice(DeviceLister* lister, const QString& id,
+                                 DeviceManager* manager)
+  : QObject(manager),
+    lister_(lister),
+    unique_id_(id),
+    manager_(manager),
     database_(new BackgroundThreadImplementation<Database, MemoryDatabase>(this)),
     backend_(NULL),
     model_(NULL)
 {
+  qDebug() << __PRETTY_FUNCTION__;
   // Wait for the database thread to start
   database_->Start(true);
 
@@ -39,8 +46,3 @@ ConnectedDevice::ConnectedDevice(QObject *parent)
   // Create the model
   model_ = new LibraryModel(backend_, this);
 }
-
-void ConnectedDevice::set_lister(DeviceLister *lister, const QString &id) {
-  lister_ = lister;
-  unique_id_ = id;
-}

src/devices/connecteddevice.h

@@ -23,6 +23,7 @@
 
 class Database;
 class DeviceLister;
+class DeviceManager;
 class LibraryBackend;
 class LibraryModel;
 
@@ -30,9 +31,8 @@ class ConnectedDevice : public QObject {
   Q_OBJECT
 
 public:
-  ConnectedDevice(QObject *parent = 0);
+  ConnectedDevice(DeviceLister* lister, const QString& id, DeviceManager* manager);
 
-  void set_lister(DeviceLister* lister, const QString& id);
   DeviceLister* lister() const { return lister_; }
   QString unique_id() const { return unique_id_; }
 
@@ -41,6 +41,7 @@ public:
 protected:
   DeviceLister* lister_;
   QString unique_id_;
+  DeviceManager* manager_;
 
   BackgroundThread<Database>* database_;
   LibraryBackend* backend_;

src/devices/devicekitlister.cpp

@@ -217,6 +217,8 @@ QString DeviceKitLister::FindUniqueIdByPath(const QDBusObjectPath &path) const {
   return QString();
 }
 
-ConnectedDevice* DeviceKitLister::Connect(const QString &id, QObject *parent) {
-  return new FilesystemDevice(DeviceInfo(id, Field_MountPath).toString(), parent);
+ConnectedDevice* DeviceKitLister::Connect(const QString &id, DeviceManager* manager) {
+  return new FilesystemDevice(
+      DeviceInfo(id, Field_MountPath).toString(),
+      this, id, manager);
 }

src/devices/devicekitlister.h

@@ -45,7 +45,7 @@ public:
   QStringList DeviceUniqueIDs();
   QVariant DeviceInfo(const QString& id, int field);
 
-  ConnectedDevice* Connect(const QString &id, QObject *parent);
+  ConnectedDevice* Connect(const QString &id, DeviceManager* manager);
 
 protected:
   void Init();

src/devices/devicelister.h

@@ -20,6 +20,7 @@
 #include <QAbstractItemModel>
 
 class ConnectedDevice;
+class DeviceManager;
 
 class DeviceLister : public QObject {
   Q_OBJECT
@@ -49,7 +50,7 @@ public:
 
   // Create a new ConnectedDevice instance for the given device.  Must be
   // thread-safe.
-  virtual ConnectedDevice* Connect(const QString& id, QObject* parent) = 0;
+  virtual ConnectedDevice* Connect(const QString& id, DeviceManager* manager) = 0;
 
 signals:
   void DeviceAdded(const QString& id);

src/devices/devicemanager.cpp

@@ -14,15 +14,22 @@
    along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#include "devicetest.h"
+#include "connecteddevice.h"
+#include "devicemanager.h"
 #include "devicekitlister.h"
 
-#include <QtDebug>
-
-DeviceTest::DeviceTest(QObject *parent)
-  : QObject(parent)
+DeviceManager::DeviceManager(TaskManager* task_manager, QObject *parent)
+  : QObject(parent),
+    task_manager_(task_manager)
 {
-  DeviceLister* lister = new DeviceKitLister;
+  AddLister(new DeviceKitLister);
+}
+
+DeviceManager::~DeviceManager() {
+  qDeleteAll(listers_);
+}
+
+void DeviceManager::AddLister(DeviceLister *lister) {
   listers_ << lister;
   connect(lister, SIGNAL(DeviceAdded(QString)), SLOT(DeviceAdded(QString)));
   connect(lister, SIGNAL(DeviceRemoved(QString)), SLOT(DeviceRemoved(QString)));
@@ -31,28 +38,36 @@ DeviceTest::DeviceTest(QObject *parent)
   lister->Start();
 }
 
-DeviceTest::~DeviceTest() {
-  qDeleteAll(listers_);
-}
-
-void DeviceTest::DeviceAdded(const QString &id) {
-  DeviceLister* engine = qobject_cast<DeviceLister*>(sender());
+void DeviceManager::DeviceAdded(const QString &id) {
+  DeviceLister* lister = qobject_cast<DeviceLister*>(sender());
 
   qDebug() << "Device added:" << id;
   for (int i=0 ; i<DeviceKitLister::LastField ; ++i) {
-    qDebug() << i << engine->DeviceInfo(id, i);
+    qDebug() << i << lister->DeviceInfo(id, i);
+  }
+
+  ConnectedDevice* device = lister->Connect(id, this);
+  devices_ << device;
+}
+
+void DeviceManager::DeviceRemoved(const QString &id) {
+  DeviceLister* lister = qobject_cast<DeviceLister*>(sender());
+
+  qDebug() << "Device removed:" << id;
+  foreach (ConnectedDevice* device, devices_) {
+    if (device->lister() == lister && device->unique_id() == id) {
+      delete device;
+      devices_.removeAll(device);
+      break;
+    }
   }
 }
 
-void DeviceTest::DeviceRemoved(const QString &id) {
-  qDebug() << "Device removed:" << id;
-}
-
-void DeviceTest::DeviceChanged(const QString &id) {
-  DeviceLister* engine = qobject_cast<DeviceLister*>(sender());
+void DeviceManager::DeviceChanged(const QString &id) {
+  DeviceLister* lister = qobject_cast<DeviceLister*>(sender());
 
   qDebug() << "Device changed:" << id;
   for (int i=0 ; i<DeviceKitLister::LastField ; ++i) {
-    qDebug() << i << engine->DeviceInfo(id, i);
+    qDebug() << i << lister->DeviceInfo(id, i);
   }
 }

src/devices/devicemanager.h

@@ -14,27 +14,37 @@
    along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef DEVICETEST_H
-#define DEVICETEST_H
+#ifndef DEVICEMANAGER_H
+#define DEVICEMANAGER_H
 
 #include <QObject>
 
+class ConnectedDevice;
 class DeviceLister;
+class TaskManager;
 
-class DeviceTest : public QObject {
+class DeviceManager : public QObject {
   Q_OBJECT
 
 public:
-  DeviceTest(QObject* parent = 0);
-  ~DeviceTest();
+  DeviceManager(TaskManager* task_manager, QObject* parent = 0);
+  ~DeviceManager();
 
-public slots:
+  TaskManager* task_manager() const { return task_manager_; }
+
+private slots:
   void DeviceAdded(const QString& id);
   void DeviceRemoved(const QString& id);
   void DeviceChanged(const QString& id);
 
 private:
+  void AddLister(DeviceLister* lister);
+
+private:
+  TaskManager* task_manager_;
+
   QList<DeviceLister*> listers_;
+  QList<ConnectedDevice*> devices_;
 };
 
-#endif // DEVICETEST_H
+#endif // DEVICEMANAGER_H

src/devices/filesystemdevice.cpp

@@ -14,11 +14,50 @@
    along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include "devicelister.h"
+#include "devicemanager.h"
 #include "filesystemdevice.h"
 #include "library/librarybackend.h"
+#include "library/librarywatcher.h"
 
-FilesystemDevice::FilesystemDevice(const QString& mount_point, QObject* parent)
-  : ConnectedDevice(parent)
+#include <QtDebug>
+
+FilesystemDevice::FilesystemDevice(
+    const QString& mount_point, DeviceLister* lister, const QString& id,
+    DeviceManager* manager)
+      : ConnectedDevice(lister, id, manager),
+        watcher_(new BackgroundThreadImplementation<LibraryWatcher, LibraryWatcher>(this))
 {
+  // Create the library watcher
+  watcher_->Start(true);
+  watcher_->Worker()->set_device_name(lister_->DeviceInfo(
+      unique_id_, DeviceLister::Field_FriendlyName).toString());
+  watcher_->Worker()->set_backend(backend_);
+  watcher_->Worker()->set_task_manager(manager_->task_manager());
+
+  // To make the connections below less verbose
+  LibraryWatcher* watcher = watcher_->Worker().get();
+
+  connect(backend_, SIGNAL(DirectoryDiscovered(Directory,SubdirectoryList)),
+          watcher,  SLOT(AddDirectory(Directory,SubdirectoryList)));
+  connect(backend_, SIGNAL(DirectoryDeleted(Directory)),
+          watcher,  SLOT(RemoveDirectory(Directory)));
+  connect(watcher,  SIGNAL(NewOrUpdatedSongs(SongList)),
+          backend_, SLOT(AddOrUpdateSongs(SongList)));
+  connect(watcher,  SIGNAL(SongsMTimeUpdated(SongList)),
+          backend_, SLOT(UpdateMTimesOnly(SongList)));
+  connect(watcher,  SIGNAL(SongsDeleted(SongList)),
+          backend_, SLOT(DeleteSongs(SongList)));
+  connect(watcher,  SIGNAL(SubdirsDiscovered(SubdirectoryList)),
+          backend_, SLOT(AddOrUpdateSubdirs(SubdirectoryList)));
+  connect(watcher,  SIGNAL(SubdirsMTimeUpdated(SubdirectoryList)),
+          backend_, SLOT(AddOrUpdateSubdirs(SubdirectoryList)));
+  connect(watcher,  SIGNAL(CompilationsNeedUpdating()),
+          backend_, SLOT(UpdateCompilations()));
+
   backend_->AddDirectory(mount_point);
 }
+
+FilesystemDevice::~FilesystemDevice() {
+  qDebug() << __PRETTY_FUNCTION__;
+}

src/devices/filesystemdevice.h

@@ -19,11 +19,19 @@
 
 #include "connecteddevice.h"
 
+class DeviceManager;
+class LibraryWatcher;
+
 class FilesystemDevice : public ConnectedDevice {
   Q_OBJECT
 
 public:
-  FilesystemDevice(const QString& mount_point, QObject* parent = 0);
+  FilesystemDevice(const QString& mount_point, DeviceLister* lister,
+                   const QString& id, DeviceManager* manager);
+  ~FilesystemDevice();
+
+private:
+  BackgroundThread<LibraryWatcher>* watcher_;
 };
 
 #endif // FILESYSTEMDEVICE_H

src/library/library.cpp

@@ -61,8 +61,8 @@ void Library::StartThreads() {
 void Library::WatcherInitialised() {
   LibraryWatcher* watcher = watcher_->Worker().get();
 
-  watcher->SetBackend(backend_);
-  watcher->SetTaskManager(task_manager_);
+  watcher->set_backend(backend_);
+  watcher->set_task_manager(task_manager_);
 
   connect(backend_, SIGNAL(DirectoryDiscovered(Directory,SubdirectoryList)),
           watcher,  SLOT(AddDirectory(Directory,SubdirectoryList)));

src/library/librarywatcher.cpp

@@ -67,7 +67,13 @@ LibraryWatcher::ScanTransaction::ScanTransaction(LibraryWatcher* watcher,
     cached_songs_dirty_(true),
     known_subdirs_dirty_(true)
 {
-  task_id_ = watcher_->task_manager_->StartTask(tr("Updating library"));
+  QString description;
+  if (watcher_->device_name_.isEmpty())
+    description = tr("Updating library");
+  else
+    description = tr("Updating %1").arg(watcher_->device_name_);
+
+  task_id_ = watcher_->task_manager_->StartTask(description);
 }
 
 LibraryWatcher::ScanTransaction::~ScanTransaction() {

src/library/librarywatcher.h

@@ -38,8 +38,10 @@ class LibraryWatcher : public QObject {
 
   static const char* kSettingsGroup;
 
-  void SetBackend(LibraryBackend* backend) { backend_ = backend; }
-  void SetTaskManager(TaskManager* task_manager) { task_manager_ = task_manager; }
+  void set_backend(LibraryBackend* backend) { backend_ = backend; }
+  void set_task_manager(TaskManager* task_manager) { task_manager_ = task_manager; }
+  void set_device_name(const QString& device_name) { device_name_ = device_name; }
+
   void IncrementalScanAsync();
   void SetRescanPausedAsync(bool pause);
 
@@ -135,6 +137,7 @@ class LibraryWatcher : public QObject {
 
   LibraryBackend* backend_;
   TaskManager* task_manager_;
+  QString device_name_;
   bool stop_requested_;
   bool scan_on_startup_;
 

src/main.cpp

@@ -34,8 +34,6 @@
 #include "ui/iconloader.h"
 #include "ui/mainwindow.h"
 
-#include "devices/devicetest.h" // TODO: Remove me
-
 #include <QtSingleApplication>
 #include <QtDebug>
 #include <QLibraryInfo>
@@ -166,8 +164,6 @@ int main(int argc, char *argv[]) {
   MPRIS mpris;
 #endif
 
-  DeviceTest device_test; // TODO: Remove me (and the header)
-
   // Window
   MainWindow w(&network, options.engine());
 

src/translations/ru.po

@@ -1476,6 +1476,10 @@ msgstr "Обновить коллекцию"
 msgid "Update the library when Clementine starts"
 msgstr "Обновить коллекцию при старте Clementine"
 
+#, qt-format
+msgid "Updating %1"
+msgstr ""
+
 msgid "Updating library"
 msgstr "Обновление библиотеки"
 

src/translations/translations.pot

@@ -1460,6 +1460,10 @@ msgstr ""
 msgid "Update the library when Clementine starts"
 msgstr ""
 
+#, qt-format
+msgid "Updating %1"
+msgstr ""
+
 msgid "Updating library"
 msgstr ""
 

src/ui/mainwindow.cpp

@@ -25,6 +25,7 @@
 #include "core/songloader.h"
 #include "core/stylesheetloader.h"
 #include "core/taskmanager.h"
+#include "devices/devicemanager.h"
 #include "engines/enginebase.h"
 #include "library/groupbydialog.h"
 #include "library/libraryconfig.h"
@@ -117,6 +118,7 @@ MainWindow::MainWindow(NetworkAccessManager* network, Engine::Type engine, QWidg
     player_(NULL),
     library_(NULL),
     global_shortcuts_(new GlobalShortcuts(this)),
+    devices_(new DeviceManager(task_manager_, this)),
     settings_dialog_(NULL),
     add_stream_dialog_(new AddStreamDialog),
     cover_manager_(NULL),

src/ui/mainwindow.h

@@ -34,6 +34,7 @@ class AddStreamDialog;
 class AlbumCoverManager;
 class CommandlineOptions;
 class Database;
+class DeviceManager;
 class EditTagDialog;
 class Equalizer;
 class ErrorDialog;
@@ -184,6 +185,8 @@ class MainWindow : public QMainWindow, public PlatformInterface {
   Library* library_;
   GlobalShortcuts* global_shortcuts_;
 
+  DeviceManager* devices_;
+
   boost::scoped_ptr<SettingsDialog> settings_dialog_;
   boost::scoped_ptr<AddStreamDialog> add_stream_dialog_;
   boost::scoped_ptr<AlbumCoverManager> cover_manager_;