Merge lp:~thomas-voss/media-hub/rebuild-against-dbus-cpp into lp:media-hub

[Thomas Voß]

Version bump to force rebuild.

Version bump to force rebuild.

Unmerged revisions

163. By Thomas Voß on 2015-11-11

Version bump to force rebuild.

=== modified file 'CMakeLists.txt'
--- CMakeLists.txt	2015-10-16 08:32:58 +0000
+++ CMakeLists.txt	2015-11-11 09:47:06 +0000
@@ -2,8 +2,13 @@
 
 project(ubuntu-media-hub)
 
+<<<<<<< TREE
 set(UBUNTU_MEDIA_HUB_VERSION_MAJOR 4)
 set(UBUNTU_MEDIA_HUB_VERSION_MINOR 1)
+=======
+set(UBUNTU_MEDIA_HUB_VERSION_MAJOR 3)
+set(UBUNTU_MEDIA_HUB_VERSION_MINOR 3)
+>>>>>>> MERGE-SOURCE
 set(UBUNTU_MEDIA_HUB_VERSION_PATCH 0)
 
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -fPIC -pthread")

=== modified file 'README'
--- README	2015-09-09 14:08:12 +0000
+++ README	2015-11-11 09:47:06 +0000
@@ -6,6 +6,10 @@
 
 https://google-styleguide.googlecode.com/svn/trunk/cppguide.html
 
+Deviations from the Google Style Guide above:
+
+1. We will agree to maximum of 100 characters in a single line instead of 80.
+
 
 To Build:
 ---------

=== modified file 'debian/changelog'
--- debian/changelog	2015-10-16 08:42:28 +0000
+++ debian/changelog	2015-11-11 09:47:06 +0000
@@ -1,3 +1,4 @@
+<<<<<<< TREE
 media-hub (4.1.0+15.10.20151016.1-0ubuntu1) wily; urgency=medium
 
   [ Simon Fels ]
@@ -9,6 +10,25 @@
     being freed. Also, remove unneeded unrefs that must be performed in
     gstreamer instead.
   * Emit CanPlay, CanPause, and CanGo[Next|Previous] in the mpris object path
+=======
+media-hub (3.3.0+15.04.20151023.3-0ubuntu2) UNRELEASED; urgency=medium
+
+  * Version bump to force rebuild.
+
+ -- Thomas Voß <[e-mail]>  Wed, 11 Nov 2015 10:34:27 +0100
+
+media-hub (3.3.0+15.04.20151023.3-0ubuntu1) vivid; urgency=medium
+
+  [ Jim Hodapp ]
+  * Add batch adding of tracks to the TrackList.
+
+  [ CI Train Bot ]
+  * New rebuild forced.
+
+ -- Jim Hodapp <[e-mail]>  Fri, 23 Oct 2015 19:07:52 +0000
+
+media-hub (3.2.0+15.04.20151014-0ubuntu1) vivid; urgency=medium
+>>>>>>> MERGE-SOURCE
 
   [ Jim Hodapp ]
   * Make sure the correct player is set as the current player controled by

=== modified file 'include/core/media/track_list.h'
--- include/core/media/track_list.h	2015-07-20 20:39:42 +0000
+++ include/core/media/track_list.h	2015-11-11 09:47:06 +0000
@@ -41,10 +41,21 @@
 {
   public:
     typedef std::vector<Track::Id> Container;
+    typedef std::vector<Track::UriType> ContainerURI;
     typedef std::tuple<std::vector<Track::Id>, Track::Id> ContainerTrackIdTuple;
     typedef Container::iterator Iterator;
     typedef Container::const_iterator ConstIterator;
 
+    struct Errors
+    {
+        Errors() = delete;
+
+        struct InsufficientPermissionsToAddTrack : public std::runtime_error
+        {
+            InsufficientPermissionsToAddTrack();
+        };
+    };
+
     static const Track::Id& after_empty_track();
 
     TrackList(const TrackList&) = delete;
@@ -65,9 +76,12 @@
     /** Gets the URI for a given Track. */
     virtual Track::UriType query_uri_for_track(const Track::Id& id) = 0;
 
-    /** Adds a URI in the TrackList. */
+    /** Adds a URI into the TrackList. */
     virtual void add_track_with_uri_at(const Track::UriType& uri, const Track::Id& position, bool make_current) = 0;
 
+    /** Adds a list of URIs into the TrackList. */
+    virtual void add_tracks_with_uri_at(const ContainerURI& uris, const Track::Id& position) = 0;
+
     /** Removes a Track from the TrackList. */
     virtual void remove_track(const Track::Id& id) = 0;
 
@@ -103,6 +117,9 @@
     /** Indicates that a track has been added to the track list. */
     virtual const core::Signal<Track::Id>& on_track_added() const = 0;
 
+    /** Indicates that one or more tracks have been added to the track list. */
+    virtual const core::Signal<ContainerURI>& on_tracks_added() const = 0;
+
     /** Indicates that a track has been removed from the track list. */
     virtual const core::Signal<Track::Id>& on_track_removed() const = 0;
 

=== modified file 'src/core/media/mpris/track_list.h'
--- src/core/media/mpris/track_list.h	2015-07-27 22:15:33 +0000
+++ src/core/media/mpris/track_list.h	2015-11-11 09:47:06 +0000
@@ -48,9 +48,21 @@
         return s;
     }
 
+    struct Error
+    {
+        struct InsufficientPermissionsToAddTrack
+        {
+            static constexpr const char* name
+            {
+                "mpris.TrackList.Error.InsufficientPermissionsToAddTrack"
+            };
+        };
+    };
+
     DBUS_CPP_METHOD_DEF(GetTracksMetadata, TrackList)
     DBUS_CPP_METHOD_DEF(GetTracksUri, TrackList)
     DBUS_CPP_METHOD_DEF(AddTrack, TrackList)
+    DBUS_CPP_METHOD_DEF(AddTracks, TrackList)
     DBUS_CPP_METHOD_DEF(RemoveTrack, TrackList)
     DBUS_CPP_METHOD_DEF(GoTo, TrackList)
     DBUS_CPP_METHOD_DEF(Reset, TrackList)
@@ -75,6 +87,13 @@
 
         DBUS_CPP_SIGNAL_DEF
         (
+            TracksAdded,
+            TrackList,
+            core::ubuntu::media::TrackList::ContainerURI
+        )
+
+        DBUS_CPP_SIGNAL_DEF
+        (
             TrackRemoved,
             TrackList,
             core::ubuntu::media::Track::Id
@@ -134,6 +153,7 @@
               {
                   configuration.object->template get_signal<Signals::TrackListReplaced>(),
                   configuration.object->template get_signal<Signals::TrackAdded>(),
+                  configuration.object->template get_signal<Signals::TracksAdded>(),
                   configuration.object->template get_signal<Signals::TrackRemoved>(),
                   configuration.object->template get_signal<Signals::TrackChanged>(),
                   configuration.object->template get_signal<Signals::TrackMetadataChanged>(),
@@ -178,6 +198,7 @@
         {
             core::dbus::Signal<Signals::TrackListReplaced, Signals::TrackListReplaced::ArgumentType>::Ptr tracklist_replaced;
             core::dbus::Signal<Signals::TrackAdded, Signals::TrackAdded::ArgumentType>::Ptr track_added;
+            core::dbus::Signal<Signals::TracksAdded, Signals::TracksAdded::ArgumentType>::Ptr tracks_added;
             core::dbus::Signal<Signals::TrackRemoved, Signals::TrackRemoved::ArgumentType>::Ptr track_removed;
             core::dbus::Signal<Signals::TrackChanged, Signals::TrackChanged::ArgumentType>::Ptr track_changed;
             core::dbus::Signal<Signals::TrackMetadataChanged, Signals::TrackMetadataChanged::ArgumentType>::Ptr track_metadata_changed;

=== modified file 'src/core/media/player_implementation.cpp'
--- src/core/media/player_implementation.cpp	2015-09-29 11:07:54 +0000
+++ src/core/media/player_implementation.cpp	2015-11-11 09:47:06 +0000
@@ -547,6 +547,18 @@
         d->update_mpris_properties();
     });
 
+    d->track_list->on_tracks_added().connect([this](const media::TrackList::ContainerURI& tracks)
+    {
+        std::cout << "** Track was added, handling in PlayerImplementation" << std::endl;
+        // If the two sizes are the same, that means the TrackList was previously empty and we need
+        // to open the first track in the TrackList so that is_audio_source() and is_video_source()
+        // will function correctly.
+        if (tracks.size() >= 1 and d->track_list->tracks()->size() == tracks.size())
+            d->open_first_track_from_tracklist(tracks.front());
+
+        d->update_mpris_properties();
+    });
+
     d->track_list->on_track_removed().connect([this](const media::Track::Id&)
     {
         d->update_mpris_properties();

=== modified file 'src/core/media/track_list.cpp'
--- src/core/media/track_list.cpp	2015-07-20 20:39:42 +0000
+++ src/core/media/track_list.cpp	2015-11-11 09:47:06 +0000
@@ -20,6 +20,11 @@
 
 namespace media = core::ubuntu::media;
 
+media::TrackList::Errors::InsufficientPermissionsToAddTrack::InsufficientPermissionsToAddTrack()
+    : std::runtime_error{"Insufficient client permissions for adding track to TrackList"}
+{
+}
+
 const media::Track::Id& media::TrackList::after_empty_track()
 {
     static const media::Track::Id id{"/org/mpris/MediaPlayer2/TrackList/NoTrack"};

=== modified file 'src/core/media/track_list_implementation.cpp'
--- src/core/media/track_list_implementation.cpp	2015-09-28 13:20:01 +0000
+++ src/core/media/track_list_implementation.cpp	2015-11-11 09:47:06 +0000
@@ -20,6 +20,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <tuple>
+#include <unistd.h>
+
+#include <dbus/dbus.h>
 
 #include "track_list_implementation.h"
 
@@ -39,6 +42,30 @@
     // Used for caching the original tracklist order to be used to restore the order
     // to the live TrackList after shuffle is turned off
     media::TrackList::Container original_tracklist;
+
+    void updateCachedTrackMetadata(const media::Track::Id& id, const media::Track::UriType& uri)
+    {
+        if (meta_data_cache.count(id) == 0)
+        {
+            // FIXME: This code seems to conflict badly when called multiple times in a row: causes segfaults
+#if 0
+            try {
+                meta_data_cache[id] = std::make_tuple(
+                            uri,
+                            extractor->meta_data_for_track_with_uri(uri));
+            } catch (const std::runtime_error &e) {
+                std::cerr << "Failed to retrieve metadata for track '" << uri << "' (" << e.what() << ")" << std::endl;
+            }
+#else
+            meta_data_cache[id] = std::make_tuple(
+                    uri,
+                    core::ubuntu::media::Track::MetaData{});
+#endif
+        } else
+        {
+            std::get<0>(meta_data_cache[id]) = uri;
+        }
+    }
 };
 
 media::TrackListImplementation::TrackListImplementation(
@@ -84,7 +111,8 @@
 {
     std::cout << __PRETTY_FUNCTION__ << std::endl;
 
-    std::stringstream ss; ss << d->object->path().as_string() << "/" << d->track_counter++;
+    std::stringstream ss;
+    ss << d->object->path().as_string() << "/" << d->track_counter++;
     Track::Id id{ss.str()};
 
     std::cout << "Adding Track::Id: " << id << std::endl;
@@ -101,26 +129,7 @@
 
     if (result)
     {
-        if (d->meta_data_cache.count(id) == 0)
-        {
-            // FIXME: This code seems to conflict badly when called multiple times in a row: causes segfaults
-#if 0
-            try {
-                d->meta_data_cache[id] = std::make_tuple(
-                            uri,
-                            d->extractor->meta_data_for_track_with_uri(uri));
-            } catch (const std::runtime_error &e) {
-                std::cerr << "Failed to retrieve metadata for track '" << uri << "' (" << e.what() << ")" << std::endl;
-            }
-#else
-            d->meta_data_cache[id] = std::make_tuple(
-                    uri,
-                    core::ubuntu::media::Track::MetaData{});
-#endif
-        } else
-        {
-            std::get<0>(d->meta_data_cache[id]) = uri;
-        }
+        d->updateCachedTrackMetadata(id, uri);
 
         if (make_current)
         {
@@ -138,8 +147,50 @@
         std::cout << "Signaling that we just added track id: " << id << std::endl;
         // Signal to the client that a track was added to the TrackList
         on_track_added()(id);
-        std::cout << "Signaled that we just added track id: " << id << std::endl;
-    }
+    }
+}
+
+void media::TrackListImplementation::add_tracks_with_uri_at(const ContainerURI& uris, const Track::Id& position)
+{
+    std::cout << __PRETTY_FUNCTION__ << std::endl;
+
+    ContainerURI tmp;
+    for (const auto uri : uris)
+    {
+        // TODO: Refactor this code to use a smaller common function shared with add_track_with_uri_at()
+        std::stringstream ss;
+        ss << d->object->path().as_string() << "/" << d->track_counter++;
+        Track::Id id{ss.str()};
+        std::cout << "Adding Track::Id: " << id << std::endl;
+        std::cout << "\tURI: " << uri << std::endl;
+
+        tmp.push_back(id);
+
+        Track::Id insert_position = position;
+
+        auto it = std::find(tracks().get().begin(), tracks().get().end(), insert_position);
+        auto result = tracks().update([this, id, position, it, &insert_position](TrackList::Container& container)
+        {
+            container.insert(it, id);
+            // Make sure the next insert position is after the current insert position
+            // Update the Track::Id after which to insert the next one from uris
+            insert_position = id;
+
+            return true;
+        });
+
+        if (result)
+        {
+            d->updateCachedTrackMetadata(id, uri);
+
+            // Signal to the client that the current track has changed for the first track added to the TrackList
+            if (tracks().get().size() == 1)
+                on_track_changed()(id);
+        }
+    }
+
+    std::cout << "Signaling that we just added " << tmp.size() << " tracks to the TrackList" << std::endl;
+    on_tracks_added()(tmp);
 }
 
 void media::TrackListImplementation::remove_track(const media::Track::Id& id)

=== modified file 'src/core/media/track_list_implementation.h'
--- src/core/media/track_list_implementation.h	2015-05-22 21:19:28 +0000
+++ src/core/media/track_list_implementation.h	2015-11-11 09:47:06 +0000
@@ -43,6 +43,7 @@
     Track::MetaData query_meta_data_for_track(const Track::Id& id);
 
     void add_track_with_uri_at(const Track::UriType& uri, const Track::Id& position, bool make_current);
+    void add_tracks_with_uri_at(const ContainerURI& uris, const Track::Id& position);
     void remove_track(const Track::Id& id);
 
     void go_to(const Track::Id& track, bool toggle_player_state);

=== modified file 'src/core/media/track_list_skeleton.cpp'
--- src/core/media/track_list_skeleton.cpp	2015-09-28 15:31:46 +0000
+++ src/core/media/track_list_skeleton.cpp	2015-11-11 09:47:06 +0000
@@ -59,6 +59,7 @@
           signals
           {
               skeleton.signals.track_added,
+              skeleton.signals.tracks_added,
               skeleton.signals.track_removed,
               skeleton.signals.track_changed,
               skeleton.signals.tracklist_replaced
@@ -93,9 +94,12 @@
     void handle_add_track_with_uri_at(const core::dbus::Message::Ptr& msg)
     {
         std::cout << "*** " << __PRETTY_FUNCTION__ << std::endl;
-        request_context_resolver->resolve_context_for_dbus_name_async(msg->sender(), [this, msg](const media::apparmor::ubuntu::Context& context)
+        request_context_resolver->resolve_context_for_dbus_name_async
+            (msg->sender(), [this, msg](const media::apparmor::ubuntu::Context& context)
         {
-            Track::UriType uri; media::Track::Id after; bool make_current;
+            Track::UriType uri;
+            media::Track::Id after;
+            bool make_current;
             msg->reader() >> uri >> after >> make_current;
 
             // Make sure the client has adequate apparmor permissions to open the URI
@@ -104,10 +108,63 @@
             auto reply = dbus::Message::make_method_return(msg);
             // Only add the track to the TrackList if it passes the apparmor permissions check
             if (std::get<0>(result))
+            {
                 impl->add_track_with_uri_at(uri, after, make_current);
-            else
-                std::cerr << "Warning: Not adding track " << uri <<
-                    " to TrackList because of inadequate client apparmor permissions." << std::endl;
+            }
+            else
+            {
+                const std::string err_str = {"Warning: Not adding track " + uri +
+                    " to TrackList because of inadequate client apparmor permissions."};
+                std::cerr << err_str << std::endl;
+                reply = dbus::Message::make_error(
+                            msg,
+                            mpris::TrackList::Error::InsufficientPermissionsToAddTrack::name,
+                            err_str);
+            }
+
+            bus->send(reply);
+        });
+    }
+
+    void handle_add_tracks_with_uri_at(const core::dbus::Message::Ptr& msg)
+    {
+        std::cout << "*** " << __PRETTY_FUNCTION__ << std::endl;
+        request_context_resolver->resolve_context_for_dbus_name_async
+            (msg->sender(), [this, msg](const media::apparmor::ubuntu::Context& context)
+        {
+            ContainerURI uris;
+            media::Track::Id after;
+            msg->reader() >> uris >> after;
+
+            media::apparmor::ubuntu::RequestAuthenticator::Result result;
+            std::string err_str;
+            for (const auto uri : uris)
+            {
+                // Make sure the client has adequate apparmor permissions to open the URI
+                result = request_authenticator->authenticate_open_uri_request(context, uri);
+                if (not std::get<0>(result))
+                {
+                    err_str = {"Warning: Not adding track " + uri +
+                        " to TrackList because of inadequate client apparmor permissions."};
+                    break;
+                }
+            }
+
+            core::dbus::Message::Ptr reply;
+            // Only add the track to the TrackList if it passes the apparmor permissions check
+            if (std::get<0>(result))
+            {
+                reply = dbus::Message::make_method_return(msg);
+                impl->add_tracks_with_uri_at(uris, after);
+            }
+            else
+            {
+                std::cerr << err_str << std::endl;
+                reply = dbus::Message::make_error(
+                            msg,
+                            mpris::TrackList::Error::InsufficientPermissionsToAddTrack::name,
+                            err_str);
+            }
 
             bus->send(reply);
         });
@@ -159,11 +216,13 @@
     struct Signals
     {
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackAdded, mpris::TrackList::Signals::TrackAdded::ArgumentType> DBusTrackAddedSignal;
+        typedef core::dbus::Signal<mpris::TrackList::Signals::TracksAdded, mpris::TrackList::Signals::TracksAdded::ArgumentType> DBusTracksAddedSignal;
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackRemoved, mpris::TrackList::Signals::TrackRemoved::ArgumentType> DBusTrackRemovedSignal;
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackChanged, mpris::TrackList::Signals::TrackChanged::ArgumentType> DBusTrackChangedSignal;
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackListReplaced, mpris::TrackList::Signals::TrackListReplaced::ArgumentType> DBusTrackListReplacedSignal;
 
         Signals(const std::shared_ptr<DBusTrackAddedSignal>& remote_track_added,
+                const std::shared_ptr<DBusTracksAddedSignal>& remote_tracks_added,
                 const std::shared_ptr<DBusTrackRemovedSignal>& remote_track_removed,
                 const std::shared_ptr<DBusTrackChangedSignal>& remote_track_changed,
                 const std::shared_ptr<DBusTrackListReplacedSignal>& remote_track_list_replaced)
@@ -174,6 +233,11 @@
                 remote_track_added->emit(id);
             });
 
+            on_tracks_added.connect([remote_tracks_added](const media::TrackList::ContainerURI &tracks)
+            {
+                remote_tracks_added->emit(tracks);
+            });
+
             on_track_removed.connect([remote_track_removed](const media::Track::Id &id)
             {
                 remote_track_removed->emit(id);
@@ -191,6 +255,7 @@
         }
 
         core::Signal<Track::Id> on_track_added;
+        core::Signal<TrackList::ContainerURI> on_tracks_added;
         core::Signal<Track::Id> on_track_removed;
         core::Signal<Track::Id> on_track_changed;
         core::Signal<TrackList::ContainerTrackIdTuple> on_track_list_replaced;
@@ -219,6 +284,11 @@
                   std::ref(d),
                   std::placeholders::_1));
 
+    d->object->install_method_handler<mpris::TrackList::AddTracks>(
+        std::bind(&Private::handle_add_tracks_with_uri_at,
+                  std::ref(d),
+                  std::placeholders::_1));
+
     d->object->install_method_handler<mpris::TrackList::RemoveTrack>(
         std::bind(&Private::handle_remove_track,
                   std::ref(d),
@@ -490,6 +560,11 @@
     return d->signals.on_track_added;
 }
 
+const core::Signal<media::TrackList::ContainerURI>& media::TrackListSkeleton::on_tracks_added() const
+{
+    return d->signals.on_tracks_added;
+}
+
 const core::Signal<media::Track::Id>& media::TrackListSkeleton::on_track_removed() const
 {
     return d->signals.on_track_removed;
@@ -520,6 +595,11 @@
     return d->signals.on_track_added;
 }
 
+core::Signal<media::TrackList::ContainerURI>& media::TrackListSkeleton::on_tracks_added()
+{
+    return d->signals.on_tracks_added;
+}
+
 core::Signal<media::Track::Id>& media::TrackListSkeleton::on_track_removed()
 {
     return d->signals.on_track_removed;

=== modified file 'src/core/media/track_list_skeleton.h'
--- src/core/media/track_list_skeleton.h	2015-09-28 13:20:01 +0000
+++ src/core/media/track_list_skeleton.h	2015-11-11 09:47:06 +0000
@@ -54,6 +54,8 @@
     core::Signal<ContainerTrackIdTuple>& on_track_list_replaced();
     const core::Signal<Track::Id>& on_track_added() const;
     core::Signal<Track::Id>& on_track_added();
+    const core::Signal<ContainerURI>& on_tracks_added() const;
+    core::Signal<ContainerURI>& on_tracks_added();
     const core::Signal<Track::Id>& on_track_removed() const;
     const core::Signal<Track::Id>& on_track_changed() const;
     core::Signal<Track::Id>& on_track_changed();

=== modified file 'src/core/media/track_list_stub.cpp'
--- src/core/media/track_list_stub.cpp	2015-07-27 22:15:33 +0000
+++ src/core/media/track_list_stub.cpp	2015-11-11 09:47:06 +0000
@@ -52,6 +52,7 @@
           signals
           {
               object->get_signal<mpris::TrackList::Signals::TrackAdded>(),
+              object->get_signal<mpris::TrackList::Signals::TracksAdded>(),
               object->get_signal<mpris::TrackList::Signals::TrackRemoved>(),
               object->get_signal<mpris::TrackList::Signals::TrackListReplaced>(),
               object->get_signal<mpris::TrackList::Signals::TrackChanged>()
@@ -70,21 +71,25 @@
     struct Signals
     {
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackAdded, mpris::TrackList::Signals::TrackAdded::ArgumentType> DBusTrackAddedSignal;
+        typedef core::dbus::Signal<mpris::TrackList::Signals::TracksAdded, mpris::TrackList::Signals::TracksAdded::ArgumentType> DBusTracksAddedSignal;
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackRemoved, mpris::TrackList::Signals::TrackRemoved::ArgumentType> DBusTrackRemovedSignal;
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackListReplaced, mpris::TrackList::Signals::TrackListReplaced::ArgumentType> DBusTrackListReplacedSignal;
         typedef core::dbus::Signal<mpris::TrackList::Signals::TrackChanged, mpris::TrackList::Signals::TrackChanged::ArgumentType> DBusTrackChangedSignal;
 
         Signals(const std::shared_ptr<DBusTrackAddedSignal>& track_added,
+                const std::shared_ptr<DBusTracksAddedSignal>& tracks_added,
                 const std::shared_ptr<DBusTrackRemovedSignal>& track_removed,
                 const std::shared_ptr<DBusTrackListReplacedSignal>& track_list_replaced,
                 const std::shared_ptr<DBusTrackChangedSignal>& track_changed)
             : on_track_added(),
+              on_tracks_added(),
               on_track_removed(),
               on_track_list_replaced(),
               on_track_changed(),
               dbus
               {
                   track_added,
+                  tracks_added,
                   track_removed,
                   track_list_replaced,
                   track_changed,
@@ -96,6 +101,12 @@
                 on_track_added(id);
             });
 
+            dbus.on_tracks_added->connect([this](const media::TrackList::ContainerURI& tracks)
+            {
+                std::cout << "OnTracksAdded signal arrived via the bus." << std::endl;
+                on_tracks_added(tracks);
+            });
+
             dbus.on_track_removed->connect([this](const Track::Id& id)
             {
                 std::cout << "OnTrackRemoved signal arrived via the bus." << std::endl;
@@ -116,6 +127,7 @@
         }
 
         core::Signal<Track::Id> on_track_added;
+        core::Signal<media::TrackList::ContainerURI> on_tracks_added;
         core::Signal<Track::Id> on_track_removed;
         core::Signal<media::TrackList::ContainerTrackIdTuple> on_track_list_replaced;
         core::Signal<Track::Id> on_track_changed;
@@ -125,6 +137,7 @@
         struct DBus
         {
             std::shared_ptr<DBusTrackAddedSignal> on_track_added;
+            std::shared_ptr<DBusTracksAddedSignal> on_tracks_added;
             std::shared_ptr<DBusTrackRemovedSignal> on_track_removed;
             std::shared_ptr<DBusTrackListReplacedSignal> on_track_list_replaced;
             std::shared_ptr<DBusTrackChangedSignal> on_track_changed;
@@ -184,16 +197,38 @@
 
 void media::TrackListStub::add_track_with_uri_at(
         const media::Track::UriType& uri,
-        const media::Track::Id& id,
+        const media::Track::Id& position,
         bool make_current)
 {
     auto op = d->object->invoke_method_synchronously<mpris::TrackList::AddTrack, void>(
                 uri,
-                id,
+                position,
                 make_current);
 
     if (op.is_error())
-        throw std::runtime_error("Problem adding track: " + op.error());
+    {
+        if (op.error().name() ==
+                mpris::TrackList::Error::InsufficientPermissionsToAddTrack::name)
+            throw media::TrackList::Errors::InsufficientPermissionsToAddTrack{};
+        else
+            throw std::runtime_error{op.error().print()};
+    }
+}
+
+void media::TrackListStub::add_tracks_with_uri_at(const ContainerURI& uris, const Track::Id& position)
+{
+    auto op = d->object->invoke_method_synchronously<mpris::TrackList::AddTracks, void>(
+                uris,
+                position);
+
+    if (op.is_error())
+    {
+        if (op.error().name() ==
+                mpris::TrackList::Error::InsufficientPermissionsToAddTrack::name)
+            throw media::TrackList::Errors::InsufficientPermissionsToAddTrack{};
+        else
+            throw std::runtime_error{op.error().print()};
+    }
 }
 
 void media::TrackListStub::remove_track(const media::Track::Id& track)
@@ -255,6 +290,11 @@
     return d->signals.on_track_added;
 }
 
+const core::Signal<media::TrackList::ContainerURI>& media::TrackListStub::on_tracks_added() const
+{
+    return d->signals.on_tracks_added;
+}
+
 const core::Signal<media::Track::Id>& media::TrackListStub::on_track_removed() const
 {
     return d->signals.on_track_removed;

=== modified file 'src/core/media/track_list_stub.h'
--- src/core/media/track_list_stub.h	2015-07-20 20:39:42 +0000
+++ src/core/media/track_list_stub.h	2015-11-11 09:47:06 +0000
@@ -48,6 +48,7 @@
     Track::UriType query_uri_for_track(const Track::Id& id);
 
     void add_track_with_uri_at(const Track::UriType& uri, const Track::Id& position, bool make_current);
+    void add_tracks_with_uri_at(const ContainerURI& uris, const Track::Id& position);
     void remove_track(const Track::Id& id);
 
     void go_to(const Track::Id& track, bool toggle_player_state);
@@ -62,6 +63,7 @@
 
     const core::Signal<ContainerTrackIdTuple>& on_track_list_replaced() const;
     const core::Signal<Track::Id>& on_track_added() const;
+    const core::Signal<ContainerURI>& on_tracks_added() const;
     const core::Signal<Track::Id>& on_track_removed() const;
     const core::Signal<Track::Id>& on_track_changed() const;
     const core::Signal<std::pair<Track::Id, bool>>& on_go_to_track() const;