WaylandTasksModel: Extract uuids from mimedata

We are using uuids now. See above in this class where we return the uuid for the  mime data.
CCBUG:436823

libtaskmanager/waylandtasksmodel.cpp

@@ -749,7 +749,7 @@ void WaylandTasksModel::requestPublishDelegateGeometry(const QModelIndex &index,
     window->setMinimizedGeometry(surface, rect);
 }
 
-quint32 WaylandTasksModel::winIdFromMimeData(const QMimeData *mimeData, bool *ok)
+QUuid WaylandTasksModel::winIdFromMimeData(const QMimeData *mimeData, bool *ok)
 {
     Q_ASSERT(mimeData);
 
@@ -761,15 +761,16 @@ quint32 WaylandTasksModel::winIdFromMimeData(const QMimeData *mimeData, bool *ok
         return 0;
     }
 
-    quint32 id = mimeData->data(Private::mimeType()).toUInt(ok);
+    QUuid id(mimeData->data(Private::mimeType()));
+    *ok = !id.isNull();
 
     return id;
 }
 
-QList<quint32> WaylandTasksModel::winIdsFromMimeData(const QMimeData *mimeData, bool *ok)
+QList<QUuid> WaylandTasksModel::winIdsFromMimeData(const QMimeData *mimeData, bool *ok)
 {
     Q_ASSERT(mimeData);
-    QList<quint32> ids;
+    QList<QUuid> ids;
 
     if (ok) {
         *ok = false;
@@ -778,7 +779,7 @@ QList<quint32> WaylandTasksModel::winIdsFromMimeData(const QMimeData *mimeData,
     if (!mimeData->hasFormat(Private::groupMimeType())) {
         // Try to extract single window id.
         bool singularOk;
-        WId id = winIdFromMimeData(mimeData, &singularOk);
+        QUuid id = winIdFromMimeData(mimeData, &singularOk);
 
         if (ok) {
             *ok = singularOk;

libtaskmanager/waylandtasksmodel.h

@@ -221,7 +221,7 @@ public:
      * @param mimeData Some mime data.
      * @param @ok Set to true or false on success or failure.
      */
-    static quint32 winIdFromMimeData(const QMimeData *mimeData, bool *ok = nullptr);
+    static QUuid winIdFromMimeData(const QMimeData *mimeData, bool *ok = nullptr);
 
     /**
      * Tries to extract process-internal Wayland window ids from supplied mime data.
@@ -229,7 +229,7 @@ public:
      * @param mimeData Some mime data.
      * @param @ok Set to true or false on success or failure.
      */
-    static QList<quint32> winIdsFromMimeData(const QMimeData *mimeData, bool *ok = nullptr);
+    static QList<QUuid> winIdsFromMimeData(const QMimeData *mimeData, bool *ok = nullptr);
 
 private:
     class Private;