Discover remote sessions

Adds a way of discovering remote sessions and in Jellyfin the UI.

core/CMakeLists.txt

@@ -13,12 +13,14 @@ include(GNUInstallDirs)
 include(GeneratedSources.cmake)
 
 set(JellyfinQt_SOURCES
+        src/model/controllablesession.cpp
         src/model/deviceprofile.cpp
         src/model/item.cpp
         src/model/player.cpp
         src/model/playbackmanager.cpp
         src/model/playbackreporter.cpp
         src/model/playlist.cpp
+        src/model/remotejellyfinplayback.cpp
         src/model/shuffle.cpp
         src/model/user.cpp
 
@@ -32,6 +34,7 @@ set(JellyfinQt_SOURCES
         src/viewmodel/modelstatus.cpp
         src/viewmodel/playbackmanager.cpp
         src/viewmodel/playlist.cpp
+        src/viewmodel/remotedevice.cpp
         src/viewmodel/settings.cpp
         src/viewmodel/userdata.cpp
         src/viewmodel/usermodel.cpp
@@ -49,41 +52,44 @@ set(JellyfinQt_SOURCES
 list(APPEND JellyfinQt_SOURCES ${openapi_SOURCES})
 
 set(JellyfinQt_HEADERS
-        include/JellyfinQt/model/deviceprofile.h
+    include/JellyfinQt/model/controllablesession.h
-        include/JellyfinQt/model/item.h
+    include/JellyfinQt/model/deviceprofile.h
-        include/JellyfinQt/model/player.h
+    include/JellyfinQt/model/item.h
-        include/JellyfinQt/model/playbackmanager.h
+    include/JellyfinQt/model/player.h
-        include/JellyfinQt/model/playbackreporter.h
+    include/JellyfinQt/model/playbackmanager.h
-        include/JellyfinQt/model/playlist.h
+    include/JellyfinQt/model/playbackreporter.h
-        include/JellyfinQt/model/shuffle.h
+    include/JellyfinQt/model/playlist.h
-        include/JellyfinQt/model/user.h
+    include/JellyfinQt/model/remotejellyfinplayback.h
-        include/JellyfinQt/support/jsonconv.h
+    include/JellyfinQt/model/shuffle.h
-        include/JellyfinQt/support/jsonconvimpl.h
+    include/JellyfinQt/model/user.h
-        include/JellyfinQt/support/loader.h
+    include/JellyfinQt/support/jsonconv.h
-        include/JellyfinQt/support/parseexception.h
+    include/JellyfinQt/support/jsonconvimpl.h
-        include/JellyfinQt/viewmodel/item.h
+    include/JellyfinQt/support/loader.h
-        include/JellyfinQt/viewmodel/itemmodel.h
+    include/JellyfinQt/support/parseexception.h
-        include/JellyfinQt/viewmodel/loader.h
+    include/JellyfinQt/viewmodel/item.h
-        include/JellyfinQt/viewmodel/mediastream.h
+    include/JellyfinQt/viewmodel/itemmodel.h
-        include/JellyfinQt/viewmodel/modelstatus.h
+    include/JellyfinQt/viewmodel/loader.h
-        include/JellyfinQt/viewmodel/propertyhelper.h
+    include/JellyfinQt/viewmodel/mediastream.h
-        include/JellyfinQt/viewmodel/playbackmanager.h
+    include/JellyfinQt/viewmodel/modelstatus.h
-        include/JellyfinQt/viewmodel/platformmediacontrol.h
+    include/JellyfinQt/viewmodel/propertyhelper.h
-        include/JellyfinQt/viewmodel/playlist.h
+    include/JellyfinQt/viewmodel/playbackmanager.h
-        include/JellyfinQt/viewmodel/settings.h
+    include/JellyfinQt/viewmodel/platformmediacontrol.h
-        include/JellyfinQt/viewmodel/userdata.h
+    include/JellyfinQt/viewmodel/playlist.h
-        include/JellyfinQt/viewmodel/usermodel.h
+    include/JellyfinQt/viewmodel/remotedevice.h
-        include/JellyfinQt/viewmodel/user.h
+    include/JellyfinQt/viewmodel/settings.h
-        include/JellyfinQt/viewmodel/utils.h
+    include/JellyfinQt/viewmodel/userdata.h
-        include/JellyfinQt/apiclient.h
+    include/JellyfinQt/viewmodel/usermodel.h
-        include/JellyfinQt/apimodel.h
+    include/JellyfinQt/viewmodel/user.h
-        include/JellyfinQt/credentialmanager.h
+    include/JellyfinQt/viewmodel/utils.h
-        include/JellyfinQt/eventbus.h
+    include/JellyfinQt/apiclient.h
-        include/JellyfinQt/jellyfin.h
+    include/JellyfinQt/apimodel.h
-        include/JellyfinQt/jsonhelper.h
+    include/JellyfinQt/credentialmanager.h
-        include/JellyfinQt/qobjectsettingswrapper.h
+    include/JellyfinQt/eventbus.h
-        include/JellyfinQt/serverdiscoverymodel.h
+    include/JellyfinQt/jellyfin.h
-        include/JellyfinQt/websocket.h)
+    include/JellyfinQt/jsonhelper.h
+    include/JellyfinQt/qobjectsettingswrapper.h
+    include/JellyfinQt/serverdiscoverymodel.h
+    include/JellyfinQt/websocket.h)
 
 if (FREEDESKTOP_INTEGRATION)
     list(APPEND JellyfinQt_SOURCES

core/include/JellyfinQt/apiclient.h

@@ -96,6 +96,7 @@ public:
     explicit ApiClient(QObject *parent = nullptr);
     virtual ~ApiClient();
     Q_PROPERTY(QString baseUrl READ baseUrl WRITE setBaseUrl NOTIFY baseUrlChanged)
+    Q_PROPERTY(QString appName READ appName WRITE setAppName NOTIFY appNameChanged)
     Q_PROPERTY(bool authenticated READ authenticated WRITE setAuthenticated NOTIFY authenticatedChanged)
     Q_PROPERTY(QString userId READ userId NOTIFY userIdChanged)
     Q_PROPERTY(QJsonObject deviceProfile READ deviceProfileJson NOTIFY deviceProfileChanged)
@@ -114,6 +115,7 @@ public:
 
     bool authenticated() const;
     void setBaseUrl(const QString &url);
+    void setAppName(const QString &appName);
     QNetworkReply *get(const QString &path, const QUrlQuery &params = QUrlQuery());
     QNetworkReply *post(const QString &path, const QJsonDocument &data, const QUrlQuery &params = QUrlQuery());
     QNetworkReply *post(const QString &path, const QByteArray &data = QByteArray(), const QUrlQuery &params = QUrlQuery());
@@ -127,6 +129,7 @@ public:
     Q_ENUM(ApiError)
 
     const QString &baseUrl() const;
+    const QString &appName() const;
     const QString &userId() const;
     const QString &deviceId() const;
     /**
@@ -185,6 +188,7 @@ signals:
 
     void authenticatedChanged(bool authenticated);
     void baseUrlChanged(const QString &baseUrl);
+    void appNameChanged(const QString &newAppName);
     void settingsChanged();
 
     /**

core/include/JellyfinQt/model/controllablesession.h

@@ -0,0 +1,171 @@
+#ifndef JELLYFIN_MODEL_CONTROLLABLESESSION_H
+#define JELLYFIN_MODEL_CONTROLLABLESESSION_H
+
+#include <QObject>
+#include <QScopedPointer>
+#include <QSharedPointer>
+
+#include "JellyfinQt/dto/sessioninfo.h"
+
+namespace Jellyfin {
+
+class ApiClient;
+
+namespace DTO {
+class ClientCapabilities;
+} // NS DTO
+
+namespace Model {
+
+class PlaybackManager;
+
+class DeviceTypeClass { Q_GADGET
+public:
+    enum Value {
+        Unknown,
+        Tv,
+        Computer,
+        Phone
+    };
+    Q_ENUM(Value)
+};
+
+class MediaTypeClass {
+    Q_GADGET
+public:
+    enum Value {
+        None  = 0x0,
+        Audio = 0x1,
+        Video = 0x2,
+        Photo = 0x4
+    };
+    Q_DECLARE_FLAGS(MediaTypes, Value)
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(MediaTypeClass::MediaTypes)
+
+using DeviceType = DeviceTypeClass::Value;
+using MediaTypes = MediaTypeClass::MediaTypes;
+
+/**
+ * @brief Abstract class for describing a playback session that can be controlled.
+ *
+ * Main purpose for this class is to hold information for displaying it in a UI for an user to select
+ * and to create an implementation of a PlaybackManager instance to control this session.
+ */
+class ControllableSession : public QObject {
+    Q_OBJECT
+public:
+    explicit ControllableSession(QObject *parent = nullptr);
+    /**
+     * @brief An unique id for this session.
+     */
+    virtual QString id() const = 0;
+    /**
+     * @brief An human-readable name for this session
+     */
+    virtual QString name() const = 0;
+    /**
+     * @brief The app for this session
+     */
+    virtual QString appName() const = 0;
+    virtual DeviceType deviceType() const = 0;
+
+    /**
+     * @brief user The username of who started this session
+     */
+    virtual QString userName() const = 0;
+    /**
+     * @brief Creates a playbackManager for this device. This PlaybackManager has no
+     * QObject parent and must be cleaned up by the caller.
+     */
+    virtual PlaybackManager *createPlaybackManager() const = 0;
+};
+
+/**
+ * @brief Dummy session representing this device.
+ */
+class LocalSession : public ControllableSession {
+    Q_OBJECT
+public:
+    LocalSession(ApiClient &apiClient, QObject *parent = nullptr);
+    QString id() const override;
+    QString name() const override;
+    QString appName() const override;
+    DeviceType deviceType() const override;
+    QString userName() const override;
+    PlaybackManager *createPlaybackManager() const override;
+private:
+    ApiClient &m_apiClient;
+};
+
+/**
+ * @brief A session on the Jellyfin server that can be controlled.
+ */
+class ControllableJellyfinSession : public ControllableSession {
+    Q_OBJECT
+public:
+    ControllableJellyfinSession(QSharedPointer<DTO::SessionInfo> info, QObject *parent = nullptr);
+    QString id() const override;
+    QString name() const override;
+    QString appName() const override;
+    DeviceType deviceType() const override;
+    QString userName() const override;
+    PlaybackManager *createPlaybackManager() const override;
+private:
+    QSharedPointer<DTO::SessionInfo> m_data;
+};
+
+/**
+ * Abstract class for finding remotely controllable sessions
+ */
+class RemoteSessionScanner : public QObject {
+    Q_OBJECT
+public:
+    explicit RemoteSessionScanner(QObject *parent = nullptr);
+    /**
+     * The session scanner should start discovering sessions
+     */
+    virtual void startScanning() = 0;
+    /**
+     * The session scanner should stop discovering sessions
+     */
+    virtual void stopScanning() = 0;
+signals:
+    /**
+     * This signal should be emitted when an session has been discovered.
+     * The session should be reparented to whoever is listening for this signal.
+     */
+    void sessionFound(Jellyfin::Model::ControllableSession *session);
+    /**
+     * Should be emitted when an session is gone.
+     */
+    void sessionLost(const QString &sessionId);
+    /**
+     * Should be emitted when the listener should delete all sessions by this discoverer.
+     */
+    void resetSessions();
+};
+
+
+class RemoteJellyfinSessionScannerPrivate;
+/**
+ * @brief Lists controllable Jellyfin sessions from the Jellyfin server
+ */
+class RemoteJellyfinSessionScanner : public RemoteSessionScanner {
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(RemoteJellyfinSessionScanner);
+public:
+    explicit RemoteJellyfinSessionScanner(ApiClient *client, QObject *parent);
+    virtual ~RemoteJellyfinSessionScanner();
+
+    void startScanning() override;
+    void stopScanning() override;
+private:
+    QScopedPointer<RemoteJellyfinSessionScannerPrivate> d_ptr;
+};
+
+} // NS Model
+} // NS Jellyfin
+
+#endif // JELLYFIN_MODEL_CONTROLLABLESESSION_H

core/include/JellyfinQt/model/playbackmanager.h

@@ -62,10 +62,25 @@ class PlaybackManager : public QObject {
     Q_PROPERTY(bool resumePlayback READ resumePlayback WRITE setResumePlayback NOTIFY resumePlaybackChanged)
     Q_PROPERTY(int audioIndex READ audioIndex WRITE setAudioIndex NOTIFY audioIndexChanged)
     Q_PROPERTY(int subtitleIndex READ subtitleIndex WRITE setSubtitleIndex NOTIFY subtitleIndexChanged)
+    /**
+     * @brief The position in ticks in the currently playing item
+     */
     Q_PROPERTY(qint64 position READ position NOTIFY positionChanged)
+    /**
+     * @brief The duration in ticks of the currently playing item
+     */
     Q_PROPERTY(qint64 duration READ duration NOTIFY durationChanged)
+    /**
+     * @brief Whether the playbackmanager is currently able to seek
+     */
     Q_PROPERTY(bool seekable READ seekable NOTIFY seekableChanged)
+    /**
+     * @brief Whether the currently playing item has audio
+     */
     Q_PROPERTY(bool hasAudio READ hasAudio NOTIFY hasAudioChanged)
+    /**
+     * @brief Whether the currently playing item has video
+     */
     Q_PROPERTY(bool hasVideo READ hasVideo NOTIFY hasVideoChanged)
     Q_PROPERTY(Jellyfin::Model::PlayerStateClass::Value playbackState READ playbackState NOTIFY playbackStateChanged)
     Q_PROPERTY(Jellyfin::Model::MediaStatusClass::Value mediaStatus READ mediaStatus NOTIFY mediaStatusChanged)
@@ -104,7 +119,15 @@ public:
     virtual bool hasAudio() const = 0;
     virtual bool hasVideo() const = 0;
 
+    /**
+     * @brief Start playing the given item
+     */
     virtual void playItem(QSharedPointer<Model::Item> item) = 0;
+    /**
+     * @brief Set the playlist to the given playlist and start playing the item at the given index
+     * @param items The list of items to play
+     * @param index Index of the item to play
+     */
     virtual void playItemInList(const QList<QSharedPointer<Model::Item>> &items, int index) = 0;
 
 signals:

core/include/JellyfinQt/model/remotejellyfinplayback.h

@@ -0,0 +1,74 @@
+/*
+ * Sailfin: a Jellyfin client written using Qt
+ * Copyright (C) 2023 Chris Josten and the Sailfin Contributors.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef JELLYFIN_MODEL_REMOTEJELLYFINPLAYBACK_H
+#define JELLYFIN_MODEL_REMOTEJELLYFINPLAYBACK_H
+
+#include <JellyfinQt/dto/generalcommandtype.h>
+#include <JellyfinQt/model/playbackmanager.h>
+
+#include <QJsonObject>
+#include <QSharedPointer>
+
+namespace Jellyfin {
+
+class ApiClient;
+
+namespace Model {
+
+class RemoteJellyfinPlayback : public PlaybackManager {
+public:
+    RemoteJellyfinPlayback(ApiClient &apiClient, QObject *parent = nullptr);
+
+
+    // PlaybackManager
+    void swap(PlaybackManager &other) override;
+    PlayerState playbackState() const override;
+    MediaStatus mediaStatus() const override;
+    bool hasNext() const override;
+    bool hasPrevious() const override;
+    PlaybackManagerError error() const override;
+    const QString &errorString() const override;
+    qint64 position() const override;
+    qint64 duration() const override;
+    bool seekable() const override;
+    bool hasAudio() const override;
+    bool hasVideo() const override;
+    void playItem(QSharedPointer<Item> item) override;
+    void playItemInList(const QList<QSharedPointer<Item> > &items, int index) override;
+
+public slots:
+    void pause() override;
+    void play() override;
+    void playItemId(const QString &id) override;
+    void previous() override;
+    void next() override;
+    void goTo(int index) override;
+    void stop() override;
+    void seek(qint64 pos) override;
+private:
+    void sendGeneralCommand(DTO::GeneralCommandType command, QJsonObject arguments = QJsonObject());
+    ApiClient &m_apiClient;
+};
+
+
+} // NS Model
+} // NS Jellyfin
+
+
+#endif // JELLYFIN_MODEL_REMOTEJELLYFINPLAYBACK_H

core/include/JellyfinQt/viewmodel/playbackmanager.h

@@ -20,11 +20,12 @@
 #define JELLYFIN_VIEWMODEL_PLAYBACKMANAGER_H
 
 #include <QAbstractItemModel>
+#include <QFuture>
 #include <QJsonArray>
 #include <QJsonObject>
 #include <QLoggingCategory>
-#include <QFuture>
 #include <QObject>
+#include <QSharedPointer>
 #include <QtGlobal>
 #include <QUrlQuery>
 #include <QVariant>
@@ -34,17 +35,18 @@
 
 #include <functional>
 
-#include "../dto/baseitemdto.h"
+#include <JellyfinQt/dto/baseitemdto.h>
-#include "../dto/playbackinfodto.h"
+#include <JellyfinQt/dto/playbackinfodto.h>
-#include "../dto/playbackinforesponse.h"
+#include <JellyfinQt/dto/playbackinforesponse.h>
-#include "../dto/playmethod.h"
+#include <JellyfinQt/dto/playmethod.h>
-#include "../loader/requesttypes.h"
+#include <JellyfinQt/loader/requesttypes.h>
-#include "../model/player.h"
+#include <JellyfinQt/model/controllablesession.h>
-#include "../model/playlist.h"
+#include <JellyfinQt/model/player.h>
-#include "../support/jsonconv.h"
+#include <JellyfinQt/model/playlist.h>
-#include "../viewmodel/item.h"
+#include <JellyfinQt/support/jsonconv.h>
-#include "../viewmodel/playlist.h"
+#include <JellyfinQt/viewmodel/item.h>
-#include "../apiclient.h"
+#include <JellyfinQt/viewmodel/playlist.h>
+#include <JellyfinQt/apiclient.h>
 #include "itemmodel.h"
 
 
@@ -81,6 +83,13 @@ public:
     virtual ~PlaybackManager();
 
     Q_PROPERTY(ApiClient *apiClient READ apiClient WRITE setApiClient)
+    Q_PROPERTY(QString controllingSessionId READ controllingSessionId NOTIFY controllingSessionIdChanged)
+    Q_PROPERTY(QString controllingSessionName READ controllingSessionName NOTIFY controllingSessionNameChanged)
+    /**
+     * Whether the playback is done by this client
+     */
+    Q_PROPERTY(bool controllingSessionLocal READ controllingSessionLocal NOTIFY controllingSessionLocalChanged)
+
     Q_PROPERTY(int audioIndex READ audioIndex WRITE setAudioIndex NOTIFY audioIndexChanged)
     Q_PROPERTY(int subtitleIndex READ subtitleIndex WRITE setSubtitleIndex NOTIFY subtitleIndexChanged)
     Q_PROPERTY(QString streamUrl READ streamUrl NOTIFY streamUrlChanged)
@@ -91,7 +100,7 @@ public:
     Q_PROPERTY(bool resumePlayback READ resumePlayback WRITE setResumePlayback NOTIFY resumePlaybackChanged)
     Q_PROPERTY(Jellyfin::DTO::PlayMethodClass::Value playMethod READ playMethod NOTIFY playMethodChanged)
 
-    // Current Item and queue informatoion
+    // Current Item and queue information
     Q_PROPERTY(QObject *item READ item NOTIFY itemChanged)
     Q_PROPERTY(int queueIndex READ queueIndex NOTIFY queueIndexChanged)
     Q_PROPERTY(Jellyfin::ViewModel::Playlist *queue READ queue NOTIFY queueChanged)
@@ -124,6 +133,11 @@ public:
     ViewModel::Item *item() const;
     QSharedPointer<Model::Item> dataItem() const;
 
+    QSharedPointer<Model::ControllableSession> controllingSession() const;
+    void setControllingSession(QSharedPointer<Model::ControllableSession> session);
+    QString controllingSessionId() const;
+    QString controllingSessionName() const;
+    bool controllingSessionLocal() const;
     QString streamUrl() const;
     PlayMethod playMethod() const;
     qint64 position() const;
@@ -146,6 +160,10 @@ public:
     void setHandlePlaystateCommands(bool newHandlePlaystateCommands);
 signals:
     void itemChanged();
+    void controllingSessionChanged();
+    void controllingSessionIdChanged();
+    void controllingSessionNameChanged();
+    void controllingSessionLocalChanged();
     void streamUrlChanged(const QString &newStreamUrl);
     void autoOpenChanged(bool autoOpen);
     void audioIndexChanged(int audioIndex);

core/include/JellyfinQt/viewmodel/remotedevice.h

@@ -0,0 +1,118 @@
+/*
+ * Sailfin: a Jellyfin client written using Qt
+ * Copyright (C) 2022 Chris Josten and the Sailfin Contributors.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef JELLYFIN_VIEWMODEL_REMOTEDEVICE_H
+#define JELLYFIN_VIEWMODEL_REMOTEDEVICE_H
+
+#include <JellyfinQt/model/controllablesession.h>
+
+#include <QAbstractItemModel>
+#include <QList>
+#include <QObject>
+#include <QQmlParserStatus>
+#include <QSharedPointer>
+
+#include <utility>
+
+namespace Jellyfin {
+
+class ApiClient;
+
+namespace ViewModel {
+
+class PlaybackManager;
+
+/**
+ * @brief AbstractListModel of remotely controllable devices by JellyfinQt.
+ *
+ * This class controls a set of \link ViewModel::RemoteSessionScanner RemoteSessionScanners\endlink and
+ * puts their found devices in this list.
+ */
+class RemoteDeviceList : public QAbstractListModel, public QQmlParserStatus {
+    Q_OBJECT
+    Q_INTERFACES(QQmlParserStatus)
+
+    /**
+     * The ApiClient for interacting with the Jellyfin API.
+     */
+    Q_PROPERTY(Jellyfin::ApiClient* apiClient READ apiClient WRITE setApiClient NOTIFY apiClientChanged)
+    /**
+     * Gets/sets whether the model is scanning for other devices.
+     */
+    Q_PROPERTY(bool scanning READ scanning WRITE setScanning NOTIFY scanningChanged);
+public:
+    enum RoleNames {
+        jellyfinId = Qt::UserRole + 1,
+        name,
+        deviceName,
+        deviceType,
+        userName,
+        session
+    };
+
+    explicit RemoteDeviceList(QObject *parent = nullptr);
+
+    ApiClient *apiClient() const { return m_apiClient; }
+    void setApiClient(ApiClient *apiClient);
+
+    bool scanning() const { return m_scanning; }
+    void setScanning(bool scanning);
+
+    // QAbstractListModel
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    QHash<int, QByteArray> roleNames() const override {
+        return {
+            { RoleNames::jellyfinId, "jellyfinId"},
+            { RoleNames::name,       "name"       },
+            { RoleNames::deviceName, "deviceName" },
+            { RoleNames::deviceType, "deviceType" },
+            { RoleNames::userName,   "userName"   },
+            { RoleNames::session,    "session"    }
+        };
+    }
+
+    /**
+     * @brief Sets the PlaybackManager to control the session at the given index in this model
+     * @param manager The PlaybackManager
+     * @param index The index of the session that should be controlled
+     */
+    Q_INVOKABLE void activateSession(Jellyfin::ViewModel::PlaybackManager *manager, int index);
+
+    // QQmlParserStatus
+    void classBegin() override;
+    void componentComplete() override;
+signals:
+    void apiClientChanged();
+    void scanningChanged();
+private slots:
+    void onSessionFound(Jellyfin::Model::ControllableSession * session);
+    void onSessionLost(QString sessionId);
+    void onSessionsReset();
+private:
+    ApiClient *m_apiClient = nullptr;
+    bool m_scanning = false;
+    bool m_componentComplete = false;
+    QList<std::pair<Model::RemoteSessionScanner *, QSharedPointer<Model::ControllableSession>>> m_sessions;
+    QList<Model::RemoteSessionScanner *> m_scanners;
+};
+
+} // NS ViewModel
+} // NS Jellyfin
+
+#endif // JELLYFIN_VIEWMODEL_REMOTEDEVICE_H

core/include/JellyfinQt/viewmodel/usermodel.h

@@ -43,17 +43,17 @@ public:
         userId = Qt::UserRole + 1,
         name,
         hasPassword,
-        primaryImageTag,
+        primaryImageTag
     };
 
     explicit UserModel (QObject *parent = nullptr);
 
     virtual QHash<int, QByteArray> roleNames() const override {
         return {
-            { RoleNames::userId,                    "userId"                    },
+            { RoleNames::userId,                    "userId"          },
-            { RoleNames::name,                      "name"                      },
+            { RoleNames::name,                      "name"            },
-            { RoleNames::hasPassword,               "hasPassword"               },
+            { RoleNames::hasPassword,               "hasPassword"     },
-            { RoleNames::primaryImageTag,           "primaryImageTag"           },
+            { RoleNames::primaryImageTag,           "primaryImageTag" }
         };
     }
     QVariant data(const QModelIndex &index, int role) const override;

core/src/apiclient.cpp

@@ -44,6 +44,7 @@ public:
     // Authentication-related variables
     QString token;
     QString baseUrl;
+    QString appName;
     QString deviceName;
     QString deviceId;
     QString userId;
@@ -103,6 +104,21 @@ void ApiClient::setBaseUrl(const QString &url) {
     emit this->baseUrlChanged(d->baseUrl);
 }
 
+const QString &ApiClient::appName() const {
+    const Q_D(ApiClient);
+    return d->appName;
+}
+
+void ApiClient::setAppName(const QString &name) {
+    Q_D(ApiClient);
+    d->appName = name;
+    emit appNameChanged(name);
+
+    if (!d->componentBeingParsed) {
+        generateDeviceProfile();
+    }
+}
+
 const QString &ApiClient::userId() const {
     Q_D(const ApiClient);
     return d->userId;
@@ -220,7 +236,7 @@ void ApiClient::addBaseRequestHeaders(QNetworkRequest &request, const QString &p
 void ApiClient::addTokenHeader(QNetworkRequest &request) const {
     Q_D(const ApiClient);
     QString authentication =   "MediaBrowser ";
-    authentication        +=   "Client=\"Sailfin\"";
+    authentication        +=   "Client=\"" +d->appName +"\"";
     authentication        += ", Device=\"" + d->deviceName + "\"";
     authentication        += ", DeviceId=\"" + d->deviceId + "\"";
     authentication        += ", Version=\"" + version() + "\"";
@@ -425,7 +441,6 @@ QString ApiClient::downloadUrl(const QString &itemId) const {
 void ApiClient::generateDeviceProfile() {
     Q_D(ApiClient);
     QSharedPointer<DTO::DeviceProfile> deviceProfile = QSharedPointer<DTO::DeviceProfile>::create(Model::DeviceProfile::generateProfile());
-    deviceProfile->setName(d->deviceName);
     deviceProfile->setJellyfinId(d->deviceId);
     deviceProfile->setFriendlyName(QSysInfo::prettyProductName());
     deviceProfile->setMaxStreamingBitrate(d->settings->maxStreamingBitRate());

core/src/jellyfin.cpp

@@ -30,6 +30,7 @@
 #include "JellyfinQt/eventbus.h"
 #include "JellyfinQt/serverdiscoverymodel.h"
 #include "JellyfinQt/websocket.h"
+#include "JellyfinQt/model/controllablesession.h"
 #include "JellyfinQt/model/player.h"
 #include "JellyfinQt/viewmodel/item.h"
 #include "JellyfinQt/viewmodel/itemmodel.h"
@@ -39,6 +40,7 @@
 #include "JellyfinQt/viewmodel/platformmediacontrol.h"
 #include "JellyfinQt/viewmodel/playbackmanager.h"
 #include "JellyfinQt/viewmodel/playlist.h"
+#include "JellyfinQt/viewmodel/remotedevice.h"
 #include "JellyfinQt/viewmodel/settings.h"
 #include "JellyfinQt/viewmodel/userdata.h"
 #include "JellyfinQt/viewmodel/usermodel.h"
@@ -66,6 +68,7 @@ void JellyfinPlugin::registerTypes(const char *uri) {
     qmlRegisterType<ViewModel::ItemModel>(uri, 1, 0, "ItemModel");
     qmlRegisterType<ViewModel::UserModel>(uri, 1, 0, "UserModel");
     qmlRegisterUncreatableType<ViewModel::Playlist>(uri, 1, 0, "Playlist", "Available via PlaybackManager");
+    qmlRegisterType<ViewModel::RemoteDeviceList>(uri, 1, 0, "RemoteDeviceList");
 
     // Loaders
     qmlRegisterUncreatableType<ViewModel::LoaderBase>(uri, 1, 0, "LoaderBase", "Use one of its subclasses");
@@ -90,6 +93,7 @@ void JellyfinPlugin::registerTypes(const char *uri) {
     qmlRegisterUncreatableType<Jellyfin::ViewModel::NowPlayingSection>(uri, 1, 0, "NowPlayingSection", "Is an enum");
     qmlRegisterUncreatableType<Jellyfin::Model::PlayerStateClass>(uri, 1, 0, "PlayerState", "Is an enum");
     qmlRegisterUncreatableType<Jellyfin::Model::MediaStatusClass>(uri, 1, 0, "MediaStatus", "Is an enum");
+    qmlRegisterUncreatableType<Jellyfin::Model::DeviceTypeClass>(uri, 1, 0, "DeviceType", "Is an enum");
 
     qRegisterMetaType<Jellyfin::DTO::PlayMethodClass::Value>();
 }

core/src/model/controllablesession.cpp

@@ -0,0 +1,132 @@
+#include "JellyfinQt/model/controllablesession.h"
+
+#include <optional>
+
+#include "JellyfinQt/loader/http/session.h"
+#include "JellyfinQt/loader/requesttypes.h"
+#include <JellyfinQt/model/playbackmanager.h>
+
+
+namespace Jellyfin {
+namespace Model {
+
+ControllableSession::ControllableSession(QObject *parent)
+    : QObject(parent) {}
+
+// LocalSession
+LocalSession::LocalSession(ApiClient &apiClient, QObject *parent)
+    : ControllableSession(parent), m_apiClient(apiClient) {}
+
+QString LocalSession::id() const {
+    return m_apiClient.deviceId();
+}
+
+QString LocalSession::appName() const {
+    return m_apiClient.appName();
+}
+
+QString LocalSession::name() const {
+    //: Shown in a list of devices to indicate that media should be played on this device
+    return tr("This device");
+}
+
+DeviceType LocalSession::deviceType() const {
+    return DeviceType::Unknown;
+}
+
+QString LocalSession::userName() const {
+    return m_apiClient.userId();
+}
+
+PlaybackManager *LocalSession::createPlaybackManager() const {
+    return new LocalPlaybackManager();
+}
+
+// ControllableJellyfinSession
+ControllableJellyfinSession::ControllableJellyfinSession(const QSharedPointer<DTO::SessionInfo> info, QObject *parent)
+    : ControllableSession(parent),
+      m_data(info) {}
+
+QString ControllableJellyfinSession::id() const {
+    return m_data->jellyfinId();
+}
+
+QString ControllableJellyfinSession::appName() const {
+    return m_data->client();
+}
+
+QString ControllableJellyfinSession::name() const {
+    return m_data->deviceName();
+}
+
+DeviceType ControllableJellyfinSession::deviceType() const {
+    return DeviceType::Unknown;
+}
+
+QString ControllableJellyfinSession::userName() const {
+    return m_data->userName();
+}
+
+PlaybackManager * ControllableJellyfinSession::createPlaybackManager() const {
+    // TODO: implement
+    return nullptr;
+}
+
+RemoteSessionScanner::RemoteSessionScanner(QObject *parent)
+    : QObject(parent) {}
+
+using GetSessionsLoader = Loader::HTTP::GetSessionsLoader;
+class RemoteJellyfinSessionScannerPrivate {
+public:
+    RemoteJellyfinSessionScannerPrivate(ApiClient *apiClient)
+        : apiClient(apiClient) {
+    };
+
+    ApiClient *apiClient;
+    GetSessionsLoader *loader = nullptr;
+};
+
+
+RemoteJellyfinSessionScanner::RemoteJellyfinSessionScanner(ApiClient *apiClient, QObject *parent)
+    : RemoteSessionScanner(parent),
+      d_ptr(new RemoteJellyfinSessionScannerPrivate(apiClient)) {
+}
+
+RemoteJellyfinSessionScanner::~RemoteJellyfinSessionScanner() {}
+
+void RemoteJellyfinSessionScanner::startScanning() {
+    Q_D(RemoteJellyfinSessionScanner);
+    if (d->loader != nullptr) return;
+
+    emit resetSessions();
+    emit sessionFound(new LocalSession(*d->apiClient));
+
+    Loader::GetSessionsParams params;
+    params.setControllableByUserId(d->apiClient->userId());
+    d->loader = new GetSessionsLoader(d->apiClient);
+    d->loader->setParameters(params);
+    connect(d->loader, &Loader::HTTP::GetSessionsLoader::ready, this, [this, d]() {
+        if (d->loader == nullptr) return;
+        QList<DTO::SessionInfo> sessions = d->loader->result();
+
+        for(auto it = sessions.begin(); it != sessions.end(); it++) {
+
+            // Skip this device
+            if (it->jellyfinId() == d->apiClient->deviceId()) continue;
+
+            emit sessionFound(new ControllableJellyfinSession(QSharedPointer<DTO::SessionInfo>::create(*it)));
+        }
+    });
+    d->loader->load();
+}
+
+void RemoteJellyfinSessionScanner::stopScanning() {
+    Q_D(RemoteJellyfinSessionScanner);
+    if (d->loader != nullptr) {
+        d->loader->deleteLater();
+        d->loader = nullptr;
+    }
+}
+
+} // NS Model
+} // NS Jellyfin

core/src/model/player.cpp

@@ -89,7 +89,7 @@ QtMultimediaPlayerPrivate::QtMultimediaPlayerPrivate(QtMultimediaPlayer *q)
     q->connect(m_mediaPlayer, &QMediaPlayer::seekableChanged, q, &QtMultimediaPlayer::seekableChanged);
     q->connect(m_mediaPlayer, &QMediaPlayer::audioAvailableChanged, q, &QtMultimediaPlayer::hasAudioChanged);
     q->connect(m_mediaPlayer, &QMediaPlayer::videoAvailableChanged, q, &QtMultimediaPlayer::hasVideoChanged);
-    q->connect(m_mediaPlayer, SIGNAL(error(QMediaPlayer::Error)), q, SLOT(errorStringChanged));
+    //q->connect(m_mediaPlayer, SIGNAL(error(QMediaPlayer::Error)), q, SLOT(errorStringChanged(QString)));
     if (m_mediaStreamsControl != nullptr) {
         q->connect(m_mediaStreamsControl, &QMediaStreamsControl::streamsChanged, q, [this](){
             qCDebug(player) << m_mediaStreamsControl->streamCount() << " streams in the medi source";

core/src/model/remotejellyfinplayback.cpp

@@ -0,0 +1,132 @@
+/*
+ * Sailfin: a Jellyfin client written using Qt
+ * Copyright (C) 2023 Chris Josten and the Sailfin Contributors.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <JellyfinQt/model/remotejellyfinplayback.h>
+
+#include <JellyfinQt/apiclient.h>
+#include <JellyfinQt/loader/http/session.h>
+#include <JellyfinQt/loader/requesttypes.h>
+
+namespace Jellyfin {
+namespace Model {
+
+RemoteJellyfinPlayback::RemoteJellyfinPlayback(ApiClient &apiClient, QObject *parent)
+    : PlaybackManager(parent), m_apiClient(apiClient) {
+
+}
+
+void RemoteJellyfinPlayback::swap(PlaybackManager &other) {
+
+}
+
+PlayerState RemoteJellyfinPlayback::playbackState() const {
+
+}
+
+MediaStatus RemoteJellyfinPlayback::mediaStatus() const {
+
+}
+
+bool RemoteJellyfinPlayback::hasNext() const {
+
+}
+
+bool RemoteJellyfinPlayback::hasPrevious() const {
+
+}
+
+PlaybackManagerError RemoteJellyfinPlayback::error() const {
+
+}
+
+const QString &RemoteJellyfinPlayback::errorString() const {
+
+}
+
+qint64 RemoteJellyfinPlayback::position() const {
+
+}
+
+qint64 RemoteJellyfinPlayback::duration() const {
+
+}
+
+bool RemoteJellyfinPlayback::seekable() const {
+
+}
+
+bool RemoteJellyfinPlayback::hasAudio() const {
+
+}
+
+bool RemoteJellyfinPlayback::hasVideo() const {
+
+}
+
+void RemoteJellyfinPlayback::playItem(QSharedPointer<Item> item) {
+
+}
+
+void RemoteJellyfinPlayback::playItemInList(const QList<QSharedPointer<Item> > &items, int index) {
+
+}
+
+void RemoteJellyfinPlayback::pause() {
+}
+
+void RemoteJellyfinPlayback::play() {
+
+}
+
+void RemoteJellyfinPlayback::playItemId(const QString &id) {
+
+}
+
+void RemoteJellyfinPlayback::previous() {
+
+}
+
+void RemoteJellyfinPlayback::next() {
+
+}
+
+void RemoteJellyfinPlayback::goTo(int index) {
+
+}
+
+void RemoteJellyfinPlayback::stop() {
+
+}
+
+void RemoteJellyfinPlayback::seek(qint64 pos) {
+
+}
+
+void RemoteJellyfinPlayback::sendGeneralCommand(DTO::GeneralCommandType command, QJsonObject arguments) {
+    Loader::SendFullGeneralCommandParams params;
+    QSharedPointer<DTO::GeneralCommand> fullCommand = QSharedPointer<DTO::GeneralCommand>::create(command, m_apiClient.userId());
+    fullCommand->setArguments(arguments);
+    // FIXME: send command
+}
+
+
+
+} // NS Model
+} // NS Jellyfin
+

core/src/viewmodel/playbackmanager.cpp

@@ -23,10 +23,13 @@
 #include <JellyfinQt/dto/playstatecommand.h>
 #include <JellyfinQt/dto/playstaterequest.h>
 
-// #include "JellyfinQt/DTO/dto.h"
 #include <JellyfinQt/dto/useritemdatadto.h>
+#include <JellyfinQt/model/controllablesession.h>
 #include <JellyfinQt/model/playbackmanager.h>
 #include <JellyfinQt/viewmodel/settings.h>
+
+#include <QSharedPointer>
+
 #include <utility>
 
 namespace Jellyfin {
@@ -47,7 +50,8 @@ public:
     PlaybackManager *q_ptr = nullptr;
 
     ApiClient *m_apiClient = nullptr;
-    Model::PlaybackManager *m_impl = nullptr;
+    QSharedPointer<Model::ControllableSession> m_session;
+    QScopedPointer<Model::PlaybackManager> m_impl;
 
     /// The currently played item that will be shown in the GUI
     ViewModel::Item *m_displayItem = nullptr;
@@ -59,6 +63,7 @@ public:
 
 PlaybackManagerPrivate::PlaybackManagerPrivate(PlaybackManager *q)
     : q_ptr(q),
+      m_session(nullptr),
       m_impl(new Model::LocalPlaybackManager(q)),
       m_displayItem(new ViewModel::Item(q)),
       m_displayQueue(new ViewModel::Playlist(m_impl->queue())) {
@@ -73,21 +78,22 @@ PlaybackManager::PlaybackManager(QObject *parent)
 
     Q_D(PlaybackManager);
     // Set up connections.
-    connect(d->m_impl, &Model::PlaybackManager::positionChanged, this, &PlaybackManager::positionChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::positionChanged, this, &PlaybackManager::positionChanged);
-    connect(d->m_impl, &Model::PlaybackManager::durationChanged, this, &PlaybackManager::durationChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::durationChanged, this, &PlaybackManager::durationChanged);
-    connect(d->m_impl, &Model::PlaybackManager::hasNextChanged, this, &PlaybackManager::hasNextChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::hasNextChanged, this, &PlaybackManager::hasNextChanged);
-    connect(d->m_impl, &Model::PlaybackManager::hasPreviousChanged, this, &PlaybackManager::hasPreviousChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::hasPreviousChanged, this, &PlaybackManager::hasPreviousChanged);
-    connect(d->m_impl, &Model::PlaybackManager::seekableChanged, this, &PlaybackManager::seekableChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::seekableChanged, this, &PlaybackManager::seekableChanged);
-    connect(d->m_impl, &Model::PlaybackManager::queueIndexChanged, this, &PlaybackManager::queueIndexChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::queueIndexChanged, this, &PlaybackManager::queueIndexChanged);
-    connect(d->m_impl, &Model::PlaybackManager::itemChanged, this, &PlaybackManager::mediaPlayerItemChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::itemChanged, this, &PlaybackManager::mediaPlayerItemChanged);
-    connect(d->m_impl, &Model::PlaybackManager::playbackStateChanged, this, &PlaybackManager::playbackStateChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::playbackStateChanged, this, &PlaybackManager::playbackStateChanged);
-    if (auto localImp = qobject_cast<Model::LocalPlaybackManager*>(d->m_impl)) {
+
+    if (auto localImp = qobject_cast<Model::LocalPlaybackManager*>(d->m_impl.data())) {
         connect(localImp, &Model::LocalPlaybackManager::streamUrlChanged, this, [this](const QUrl& newUrl){
-            this->streamUrlChanged(newUrl.toString());
+            emit this->streamUrlChanged(newUrl.toString());
         });
         connect(localImp, &Model::LocalPlaybackManager::playMethodChanged, this, &PlaybackManager::playMethodChanged);
     }
-    connect(d->m_impl, &Model::PlaybackManager::mediaStatusChanged, this, &PlaybackManager::mediaStatusChanged);
+    connect(d->m_impl.data(), &Model::PlaybackManager::mediaStatusChanged, this, &PlaybackManager::mediaStatusChanged);
 }
 
 PlaybackManager::~PlaybackManager() {
@@ -107,6 +113,10 @@ void PlaybackManager::setApiClient(ApiClient *apiClient) {
     d->m_impl->setApiClient(apiClient);
 
     if (d->m_apiClient != nullptr) {
+        // Set the session to a new LocalSession in case it hasn't been set yet.
+        if (d->m_session.isNull()) {
+            setControllingSession(QSharedPointer<Model::LocalSession>::create(*apiClient, this));
+        }
         connect(d->m_apiClient->eventbus(), &EventBus::playstateCommandReceived, this, &PlaybackManager::handlePlaystateRequest);
     }
 }
@@ -155,9 +165,42 @@ ApiClient * PlaybackManager::apiClient() const {
     return d->m_apiClient;
 }
 
+QSharedPointer<Model::ControllableSession> PlaybackManager::controllingSession() const {
+    const Q_D(PlaybackManager);
+    return d->m_session;
+}
+
+void PlaybackManager::setControllingSession(QSharedPointer<Model::ControllableSession> session) {
+    Q_D(PlaybackManager);
+
+    qCDebug(playbackManager()) << "Now controlling session " << session->name();
+    session->setParent(this);
+    d->m_session.swap(session);
+    // TODO: swap out playback manager
+    emit controllingSessionChanged();
+    emit controllingSessionIdChanged();
+    emit controllingSessionNameChanged();
+    emit controllingSessionLocalChanged();
+}
+
+QString PlaybackManager::controllingSessionId() const {
+    const Q_D(PlaybackManager);
+    return d->m_session->id();
+}
+
+QString PlaybackManager::controllingSessionName() const {
+    const Q_D(PlaybackManager);
+    return d->m_session->name();
+}
+
+bool PlaybackManager::controllingSessionLocal() const {
+    const Q_D(PlaybackManager);
+    return qobject_cast<Model::LocalPlaybackManager *>(d->m_impl.data()) != nullptr;
+}
+
 QString PlaybackManager::streamUrl() const {
     const Q_D(PlaybackManager);
-    if (Model::LocalPlaybackManager *lpm = qobject_cast<Model::LocalPlaybackManager *>(d->m_impl)) {
+    if (Model::LocalPlaybackManager *lpm = qobject_cast<Model::LocalPlaybackManager *>(d->m_impl.data())) {
         return lpm->streamUrl().toString();
     } else {
         return QStringLiteral("<not playing back locally>");
@@ -166,7 +209,7 @@ QString PlaybackManager::streamUrl() const {
 
 PlayMethod PlaybackManager::playMethod() const {
     const Q_D(PlaybackManager);
-    if (Model::LocalPlaybackManager *lpm = qobject_cast<Model::LocalPlaybackManager *>(d->m_impl)) {
+    if (Model::LocalPlaybackManager *lpm = qobject_cast<Model::LocalPlaybackManager *>(d->m_impl.data())) {
         return lpm->playMethod();
     } else {
         return PlayMethod::EnumNotSet;
@@ -210,7 +253,7 @@ bool PlaybackManager::hasPrevious() const {
 
 QObject* PlaybackManager::mediaObject() const {
     const Q_D(PlaybackManager);
-    if (auto localPb = qobject_cast<Model::LocalPlaybackManager*>(d->m_impl)) {
+    if (auto localPb = qobject_cast<Model::LocalPlaybackManager*>(d->m_impl.data())) {
         return localPb->player()->videoOutputSource();
     } else {
         return nullptr;

core/src/viewmodel/remotedevice.cpp

@@ -0,0 +1,152 @@
+/*
+ * Sailfin: a Jellyfin client written using Qt
+ * Copyright (C) 2022 Chris Josten and the Sailfin Contributors.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <JellyfinQt/viewmodel/remotedevice.h>
+
+#include <JellyfinQt/model/controllablesession.h>
+#include <JellyfinQt/viewmodel/playbackmanager.h>
+
+namespace Jellyfin {
+namespace ViewModel {
+
+RemoteDeviceList::RemoteDeviceList(QObject *parent)
+    : QAbstractListModel(parent) {}
+
+void RemoteDeviceList::classBegin() {}
+void RemoteDeviceList::componentComplete() {
+    m_componentComplete = true;
+    if (m_apiClient != nullptr) {
+        setApiClient(m_apiClient);
+    }
+}
+
+void RemoteDeviceList::setApiClient(ApiClient *apiClient) {
+    if (m_apiClient != nullptr) {
+        for (auto it = m_scanners.begin(); it != m_scanners.end(); it++) {
+            disconnect(*it, &Model::RemoteSessionScanner::sessionFound, this, &RemoteDeviceList::onSessionFound);
+            disconnect(*it, &Model::RemoteSessionScanner::sessionLost, this, &RemoteDeviceList::onSessionLost);
+            disconnect(*it, &Model::RemoteSessionScanner::resetSessions, this, &RemoteDeviceList::onSessionsReset);
+        }
+        for (auto it = m_sessions.begin(); it != m_sessions.end(); it++) {
+            it->first->stopScanning();
+            it->first->deleteLater();
+            it->second->deleteLater();
+        }
+        m_scanners.clear();
+        m_sessions.clear();
+    }
+    m_apiClient = apiClient;
+    emit apiClientChanged();
+    if (!m_componentComplete) return;
+
+    m_scanners.append(new Model::RemoteJellyfinSessionScanner(m_apiClient, this));
+    for (auto it = m_scanners.begin(); it != m_scanners.end(); it++) {
+        connect(*it, &Model::RemoteSessionScanner::sessionFound, this, &RemoteDeviceList::onSessionFound);
+        connect(*it, &Model::RemoteSessionScanner::sessionLost, this, &RemoteDeviceList::onSessionLost);
+        connect(*it, &Model::RemoteSessionScanner::resetSessions, this, &RemoteDeviceList::onSessionsReset);
+    }
+}
+
+int RemoteDeviceList::rowCount(const QModelIndex &parent) const {
+    return m_sessions.size();
+}
+
+QVariant RemoteDeviceList::data(const QModelIndex &index, int role) const {
+    int row = index.row();
+    if (!index.isValid() || row < 0 || row > rowCount()) return QVariant();
+    const QSharedPointer<Model::ControllableSession> session = m_sessions.at(row).second;
+    if (session.isNull()) return QVariant();
+
+    switch (role) {
+    case RoleNames::jellyfinId:
+        return session->id();
+    case RoleNames::name:
+        return session->name();
+    case RoleNames::deviceName:
+        return session->appName();
+    case RoleNames::deviceType:
+        return QVariant::fromValue<Model::DeviceType>(session->deviceType());
+    case RoleNames::userName:
+        return session->userName();
+    default:
+        return QVariant();
+    }
+}
+
+void RemoteDeviceList::activateSession(PlaybackManager *manager, int index) {
+    manager->setControllingSession(m_sessions.at(index).second);
+}
+
+void RemoteDeviceList::setScanning(bool scanning) {
+    if (scanning == m_scanning) return;
+    m_scanning = scanning;
+    emit scanningChanged();
+
+    if (scanning) {
+        for (auto it = m_scanners.begin(); it != m_scanners.end(); it++) {
+            (*it)->startScanning();
+        }
+    } else {
+        for (auto it = m_scanners.begin(); it != m_scanners.end(); it++) {
+            (*it)->stopScanning();
+        }
+    }
+}
+
+void RemoteDeviceList::onSessionFound(Model::ControllableSession *session) {
+    beginInsertRows(QModelIndex(), rowCount(), rowCount());
+    m_sessions.append(std::make_pair(qobject_cast<Model::RemoteSessionScanner *>(sender()), QSharedPointer<Model::ControllableSession>(session)));
+    endInsertRows();
+}
+
+void RemoteDeviceList::onSessionLost(QString sessionId) {
+    Model::RemoteSessionScanner *scanner = qobject_cast<Model::RemoteSessionScanner *>(sender());
+    for (int i = 0; i < m_sessions.size(); i++) {
+        auto row = m_sessions.at(i);
+        if (row.first == scanner && row.second->name() == sessionId) {
+            beginRemoveRows(QModelIndex(), i, i);
+            m_sessions.removeAt(i);
+            if (row.second->parent() == this) {
+                row.second->deleteLater();
+            }
+            endRemoveRows();
+            i--;
+        }
+    }
+}
+
+void RemoteDeviceList::onSessionsReset() {
+    Model::RemoteSessionScanner *scanner = qobject_cast<Model::RemoteSessionScanner *>(sender());
+    for (int i = 0; i < m_sessions.size(); i++) {
+        auto row = m_sessions.at(i);
+        if (row.first == scanner) {
+            beginRemoveRows(QModelIndex(), i, i);
+            m_sessions.removeAt(i);
+            if (row.second->parent() == this) {
+                row.second->deleteLater();
+            }
+            endRemoveRows();
+            i--;
+        }
+    }
+}
+
+
+} // NS Model
+} // NS Jellyfin

sailfish/CMakeLists.txt

@@ -26,7 +26,7 @@ set(sailfin_QML_SOURCES
 	qml/components/videoplayer/VideoError.qml
 	qml/components/videoplayer/VideoHud.qml
 	qml/components/IconListItem.qml
-    qml/components/ItemChildrenShowcase.qml
+	qml/components/ItemChildrenShowcase.qml
 	qml/components/JItem.qml
 	qml/components/LibraryItemDelegate.qml
 	qml/components/MoreSection.qml
@@ -39,14 +39,15 @@ set(sailfin_QML_SOURCES
 	qml/components/UserGridDelegate.qml
 	qml/components/VideoPlayer.qml
 	qml/components/VideoTrackSelector.qml
-        qml/cover/CollectionPage.qml
+	qml/cover/CollectionPage.qml
 	qml/cover/PosterCover.qml
-        qml/cover/NowPlayingCover.qml
+	qml/cover/NowPlayingCover.qml
 	qml/pages/LegalPage.qml
 	qml/pages/MainPage.qml
 	qml/pages/AboutPage.qml
-        qml/harbour-sailfin.qml
+	qml/harbour-sailfin.qml
-        qml/pages/ConnectingPage.qml
+	qml/pages/ConnectingPage.qml
+	qml/pages/ControllableDevicesPage.qml
 	qml/pages/SettingsPage.qml
 	qml/pages/VideoPage.qml
 	qml/pages/itemdetails/BaseDetailPage.qml
@@ -54,8 +55,8 @@ set(sailfin_QML_SOURCES
 	qml/pages/itemdetails/EpisodePage.qml
 	qml/pages/itemdetails/FilmPage.qml
 	qml/pages/itemdetails/MusicAlbumPage.qml
-    qml/pages/itemdetails/MusicArtistPage.qml
+	qml/pages/itemdetails/MusicArtistPage.qml
-    qml/pages/itemdetails/MusicLibraryPage.qml
+	qml/pages/itemdetails/MusicLibraryPage.qml
 	qml/pages/itemdetails/PhotoPage.qml
 	qml/pages/itemdetails/SeasonPage.qml
 	qml/pages/itemdetails/SeriesPage.qml

sailfish/qml/components/PlaybackBar.qml

@@ -267,7 +267,16 @@ PanelBackground {
    states: [
        State {
            name: ""
-           when: manager.playbackState !== J.PlayerState.Stopped && !isFullPage && !("__hidePlaybackBar" in pageStack.currentPage)
+           // Show the bar whenever:
+           // 1. Either one of the following is true:
+           //    a. The playbackmanager is playing media
+           //    b. The playbackmanager is controlling a remote session
+           // AND
+           // 2. The playback bar isn't in the full page state
+           // AND
+           // 3. The topmost page on the pagestack hasn't requested to hide the page
+           when: (manager.playbackState !== J.PlayerState.Stopped || !manager.controllingSessionLocal)
+                 && !isFullPage && !("__hidePlaybackBar" in pageStack.currentPage)
        },
        State {
            name: "large"

sailfish/qml/harbour-sailfin.qml

@@ -50,6 +50,7 @@ ApplicationWindow {
     ApiClient {
         id: _apiClient
         objectName: "Test"
+        appName: "Sailfin"
         supportedCommands: [GeneralCommandType.Play, GeneralCommandType.DisplayMessage]
     }
 

sailfish/qml/pages/ControllableDevicesPage.qml

@@ -0,0 +1,63 @@
+import QtQuick 2.6
+import Sailfish.Silica 1.0
+
+import nl.netsoj.chris.Jellyfin 1.0 as J
+import ".."
+
+Page {
+    id: pageRoot
+    SilicaListView {
+        id: listView
+        anchors.fill: parent
+        contentHeight: Theme.itemSizeLarge
+
+        header: PageHeader {
+            //: Page title: page for remote controlling other Jellyfin apps
+            title: qsTr("Remote control")
+        }
+        model: J.RemoteDeviceList {
+            id: deviceList
+            apiClient: appWindow.apiClient
+            scanning: pageRoot.status == PageStatus.Active
+        }
+
+        delegate: ListItem {
+            property bool isConnected: model.jellyfinId === appWindow.playbackManager.controllingSessionId
+            onClicked: deviceList.activateSession(appWindow.playbackManager, model.index)
+            contentHeight: Theme.itemSizeMedium
+            HighlightImage {
+                id: deviceIcon
+                anchors {
+                    left: parent.left
+                    leftMargin: Theme.horizontalPageMargin
+                    verticalCenter: parent.verticalCenter
+                }
+                height: parent.contentHeight - 2 * Theme.paddingMedium
+                width: height
+                source: "image://theme/icon-m-computer"
+                highlighted: parent.down || isConnected
+            }
+            Column {
+                anchors {
+                    left: deviceIcon.right
+                    right: parent.right
+                    verticalCenter: parent.verticalCenter
+                    leftMargin: Theme.paddingLarge
+                    rightMargin: Theme.horizontalPageMargin
+                }
+                Label {
+                    id: deviceName
+                    //: List of devices item title in the form of <app name> — <device name>
+                    text: qsTr("%1 — %2").arg(model.name).arg(model.deviceName)
+                    color: isConnected || highlighted ? Theme.highlightColor : Theme.primaryColor
+                }
+                Label {
+                    id: deviceUser
+                    text: model.userName
+                    color: isConnected || highlighted ? Theme.secondaryHighlightColor : Theme.secondaryColor
+                }
+            }
+        }
+    }
+
+}

sailfish/qml/pages/MainPage.qml

@@ -45,6 +45,11 @@ Page {
                 text: qsTr("Settings")
                 onClicked: pageStack.push(Qt.resolvedUrl("SettingsPage.qml"))
             }
+            MenuItem {
+                //: Pulley menu item: shows controllable device page
+                text: qsTr("Remote control")
+                onClicked: pageStack.push(Qt.resolvedUrl("ControllableDevicesPage.qml"))
+            }
             MenuItem {
                 //: Pulley menu item: reload items on page
                 text: qsTr("Reload")