fix: instance not add if service start after AM

try add instance on JobNew signal

Issue: https://github.com/linuxdeepin/developer-center/issues/8879

src/dbus/applicationmanager1service.cpp

@@ -69,6 +69,32 @@ void ApplicationManager1Service::initService(QDBusConnection &connection) noexce
     auto &dispatcher = SystemdSignalDispatcher::instance();
 
     connect(&dispatcher, &SystemdSignalDispatcher::SystemdUnitNew, this, &ApplicationManager1Service::addInstanceToApplication);
+    connect(&dispatcher, &SystemdSignalDispatcher::SystemdJobNew, this, [this](QString unitName, QDBusObjectPath systemdUnitPath){
+        auto info = processUnitName(unitName);
+        auto appId = std::move(info.applicationID);
+
+        if (appId.isEmpty()) {
+            return;
+        }
+
+        auto appIt = std::find_if(m_applicationList.cbegin(),
+                                  m_applicationList.cend(),
+                                  [&appId](const QSharedPointer<ApplicationService> &app) { return app->id() == appId; });
+
+        if (appIt == m_applicationList.cend()) {
+            return;
+        }
+
+        // 服务在 AM 之后启动那么 instance size 是 0， newJob 时尝试添加一次
+        // 比如 dde-file-manager.service 如果启动的比 AM 晚，那么在 scanInstances 时不会 addInstanceToApplication
+        if ((*appIt)->instances().size() > 0) {
+            return;
+        }
+
+        qDebug() << "add Instance " << unitName << "on JobNew";
+
+        addInstanceToApplication(unitName, systemdUnitPath);
+    });
 
     connect(&dispatcher,
             &SystemdSignalDispatcher::SystemdUnitRemoved,

src/systemdsignaldispatcher.cpp

@@ -38,6 +38,16 @@ bool SystemdSignalDispatcher::connectToSignals() noexcept
         return false;
     }
 
+    if (!con.connect(SystemdService,
+                     SystemdObjectPath,
+                     SystemdInterfaceName,
+                     "JobNew",
+                     this,
+                     SLOT(onJobNew(uint32_t, QDBusObjectPath, QString)))) {
+        qCritical() << "can't connect to UnitNew signal of systemd service.";
+        return false;
+    }
+
     return true;
 }
 
@@ -57,6 +67,11 @@ void SystemdSignalDispatcher::onUnitNew(QString unitName, QDBusObjectPath system
     emit SystemdUnitNew(unitName, systemdUnitPath);
 }
 
+void SystemdSignalDispatcher::onJobNew(uint32_t, QDBusObjectPath systemdUnitPath, QString unitName)
+{
+    emit SystemdJobNew(unitName, systemdUnitPath);
+}
+
 void SystemdSignalDispatcher::onUnitRemoved(QString unitName, QDBusObjectPath systemdUnitPath)
 {
     emit SystemdUnitRemoved(unitName, systemdUnitPath);

src/systemdsignaldispatcher.h

@@ -20,11 +20,13 @@ public:
     }
 Q_SIGNALS:
     void SystemdUnitNew(QString unitName, QDBusObjectPath systemdUnitPath);
+    void SystemdJobNew(QString unitName, QDBusObjectPath systemdUnitPath);
     void SystemdUnitRemoved(QString unitName, QDBusObjectPath systemdUnitPath);
     void SystemdEnvironmentChanged(QStringList envs);
 
 private Q_SLOTS:
     void onUnitNew(QString unitName, QDBusObjectPath systemdUnitPath);
+    void onJobNew(uint32_t id, QDBusObjectPath systemdUnitPath, QString unitName);
     void onUnitRemoved(QString unitName, QDBusObjectPath systemdUnitPath);
     void onPropertiesChanged(QString interface, QVariantMap props, QStringList invalid);