[Linux] DBus fixes

linux/playerstatuswatcher.cpp

@@ -0,0 +1,77 @@
+#include "media/playerstatuswatcher.h"
+#include <QDBusConnection>
+#include <QDBusPendingReply>
+#include <QVariantMap>
+#include <QDBusReply>
+
+PlayerStatusWatcher::PlayerStatusWatcher(const QString &playerService, QObject *parent)
+    : QObject(parent),
+      m_playerService(playerService),
+      m_iface(new QDBusInterface(playerService, "/org/mpris/MediaPlayer2",
+                                 "org.mpris.MediaPlayer2.Player", QDBusConnection::sessionBus(), this)),
+      m_serviceWatcher(new QDBusServiceWatcher(playerService, QDBusConnection::sessionBus(),
+                                               QDBusServiceWatcher::WatchForOwnerChange, this))
+{
+    // Register this object on the session bus to receive D-Bus messages
+    QDBusConnection::sessionBus().registerObject("/PlayerStatusWatcher", this,
+                                               QDBusConnection::ExportAllSlots);
+
+    QDBusConnection::sessionBus().connect(
+        playerService, "/org/mpris/MediaPlayer2", "org.freedesktop.DBus.Properties",
+        "PropertiesChanged", this, SLOT(onPropertiesChanged(QString,QVariantMap,QStringList))
+    );
+    connect(m_serviceWatcher, &QDBusServiceWatcher::serviceOwnerChanged,
+            this, &PlayerStatusWatcher::onServiceOwnerChanged);
+    updateStatus();
+}
+
+void PlayerStatusWatcher::onPropertiesChanged(const QString &interface,
+                                              const QVariantMap &changed,
+                                              const QStringList &)
+{
+    // Get the service name of the sender
+    QString sender = message().service();
+    
+    // Skip if it's a KDE Connect player
+    if (sender.contains("kdeconnect", Qt::CaseInsensitive)) {
+        return;
+    }
+
+    if (interface == "org.mpris.MediaPlayer2.Player" && changed.contains("PlaybackStatus")) {
+        emit playbackStatusChanged(changed.value("PlaybackStatus").toString());
+    }
+}
+
+void PlayerStatusWatcher::updateStatus() {
+    QVariant reply = m_iface->property("PlaybackStatus");
+    if (reply.isValid()) {
+        emit playbackStatusChanged(reply.toString());
+    }
+}
+
+void PlayerStatusWatcher::onServiceOwnerChanged(const QString &name, const QString &, const QString &newOwner)
+{
+    if (name == m_playerService && newOwner.isEmpty()) {
+        emit playbackStatusChanged(""); // player disappeared
+    } else if (name == m_playerService && !newOwner.isEmpty()) {
+        updateStatus(); // player appeared/reappeared
+    }
+}
+
+QString PlayerStatusWatcher::getCurrentPlaybackStatus(const QString &playerService)
+{
+    QDBusInterface iface(
+        playerService,
+        "/org/mpris/MediaPlayer2",
+        "org.mpris.MediaPlayer2.Player",
+        QDBusConnection::sessionBus());
+    QVariant reply = iface.property("PlaybackStatus");
+    if (reply.isValid())
+    {
+        return reply.toString(); // "Playing", "Paused", "Stopped"
+    }
+    else
+    {
+        return QString(); // or handle error as needed
+    }
+}