Fix some compile error against qt6

CMakeLists.txt

@@ -69,7 +69,7 @@ find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
     WindowSystem
 )
 
-find_package(KUserFeedback 1.0.0)
+find_package(KUserFeedback 1.2.0)
 set_package_properties(KUserFeedback
         PROPERTIES TYPE OPTIONAL
         PURPOSE "Used for submission of telemetry data"
@@ -91,13 +91,13 @@ set_package_properties(KF5Activities PROPERTIES DESCRIPTION "KActivities librari
 
 find_package(Phonon4Qt${QT_MAJOR_VERSION} CONFIG REQUIRED)
 
-find_package(PackageKitQt5)
-set_package_properties(PackageKitQt5
+find_package(PackageKitQt${QT_MAJOR_VERSION})
+set_package_properties(PackageKitQt${QT_MAJOR_VERSION}
         PROPERTIES DESCRIPTION "Software Manager integration"
         TYPE OPTIONAL
         PURPOSE "Used in the service menu installer"
         )
-if(PackageKitQt5_FOUND)
+if(PackageKitQt${QT_MAJOR_VERSION}_FOUND)
     set(HAVE_PACKAGEKIT TRUE)
 endif()
 

src/CMakeLists.txt

@@ -307,7 +307,7 @@ target_link_libraries(dolphinstatic
     KF5::KCMUtils
     KF5::DBusAddons
     KF5::Notifications
-    Phonon::phonon4qt5
+    Phonon::phonon4qt${QT_MAJOR_VERSION}
 )
 
 if (HAVE_KACTIVITIES)

src/kitemviews/kfileitemmodel.cpp

@@ -15,7 +15,7 @@
 
 #include <KDirLister>
 #include <KIO/Job>
-#include <KIO/kio_version.h>
+#include <kio_version.h>
 #include <KLocalizedString>
 #include <KLazyLocalizedString>
 #include <KUrlMimeData>

src/kitemviews/kstandarditemlistwidget.cpp

@@ -1211,7 +1211,11 @@ QString KStandardItemListWidget::elideRightKeepExtension(const QString &text, in
             QString ret = m_customizedFontMetrics.elidedText(text.chopped(extensionLength),
                                                              Qt::ElideRight,
                                                              elidingWidth - extensionWidth);
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
             ret.append(text.rightRef(extensionLength));
+#else
+            ret.append(QStringView(text).right(extensionLength));
+#endif
             return ret;
         }
     }

src/trash/dolphintrash.h

@@ -11,7 +11,7 @@
 #include <QWidget>
 
 #include <KIO/EmptyTrashJob>
-#include <KIOWidgets/KDirLister>
+#include <KDirLister>
 
 class Trash: public QObject
 {