[libtaskmanager] Add ApplicationMenu{ObjectPath,ServiceName} roles to model

Summary:
The tasks model now exposes a window's application menu object path and service name.

No update signals set up for XOrg; not sure what to listen for.

Test Plan:
See that the model has more roles and see that they're wired to the application
menu obiect path and service name on Wayland and XOrg.

Reviewers: #plasma, broulik

Reviewed By: #plasma, broulik

Subscribers: broulik, plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D27959

libtaskmanager/abstracttasksmodel.h

@@ -96,6 +96,10 @@ public:
                                model contents due to the asynchronous nature of the windowing
                                system. */
         LastActivated,    /**< The timestamp of the last time a task was the active task. */
+        ApplicationMenuServiceName, /**< The DBus service name for the application's menu.
+                                         May be empty. @since 5.19 */
+        ApplicationMenuObjectPath,/**< The DBus object path for the application's menu.
+                                       May be empty. @since 5.19 */
     };
     Q_ENUM(AdditionalRoles)
 

libtaskmanager/waylandtasksmodel.cpp

@@ -312,6 +312,12 @@ void WaylandTasksModel::Private::addWindow(KWayland::Client::PlasmaWindow *windo
     QObject::connect(window, &KWayland::Client::PlasmaWindow::skipTaskbarChanged, q,
         [window, this] { this->dataChanged(window, SkipTaskbar); }
     );
+
+    QObject::connect(window, &KWayland::Client::PlasmaWindow::applicationMenuChanged, q,
+        [window, this] {
+            this->dataChanged(window, QVector<int>{ApplicationMenuServiceName, ApplicationMenuObjectPath});
+        }
+    );
 }
 
 AppData WaylandTasksModel::Private::appData(KWayland::Client::PlasmaWindow *window)
@@ -461,6 +467,10 @@ QVariant WaylandTasksModel::data(const QModelIndex &index, int role) const
         // FIXME Implement.
     } else if (role == AppPid) {
         return window->pid();
+    } else if (role == ApplicationMenuObjectPath) {
+        return window->applicationMenuObjectPath();
+    } else if (role == ApplicationMenuServiceName) {
+        return window->applicationMenuServiceName();
     }
 
     return QVariant();

libtaskmanager/xwindowtasksmodel.cpp

@@ -81,6 +81,8 @@ public:
 
     KWindowInfo* windowInfo(WId window);
     AppData appData(WId window);
+    QString appMenuServiceName(WId window);
+    QString appMenuObjectPath(WId window);
 
     QIcon icon(WId window);
     static QString mimeType();
@@ -465,6 +467,18 @@ AppData XWindowTasksModel::Private::appData(WId window)
     return data;
 }
 
+QString XWindowTasksModel::Private::appMenuServiceName(WId window)
+{
+    const KWindowInfo *info = windowInfo(window);
+    return QString::fromUtf8(info->applicationMenuServiceName());
+}
+
+QString XWindowTasksModel::Private::appMenuObjectPath(WId window)
+{
+    const KWindowInfo *info = windowInfo(window);
+    return QString::fromUtf8(info->applicationMenuServiceName());
+}
+
 QIcon XWindowTasksModel::Private::icon(WId window)
 {
     const AppData &app = appData(window);
@@ -690,6 +704,10 @@ QVariant XWindowTasksModel::data(const QModelIndex &index, int role) const
         if (d->lastActivated.contains(window)) {
             return d->lastActivated.value(window);
         }
+    } else if (role == ApplicationMenuObjectPath) {
+        return d->appMenuObjectPath(window);
+    } else if (role == ApplicationMenuServiceName) {
+        return d->appMenuServiceName(window);
     }
 
     return QVariant();