Move playlist's section sizer to BaseTheme

src/qml/BaseTheme.qml

@@ -48,4 +48,16 @@ Item {
     property int gridDelegateSize: 170
 
     property int viewSelectorSmallSizeThreshold: 800
+
+    readonly property alias sectionHeight: sectionSizer.implicitHeight
+
+    // calculate a fixed height for playlist's section delegates
+    // workaround for QTBUG-52595
+    Column {
+        id: sectionSizer
+        visible: false
+        spacing: Kirigami.Units.smallSpacing
+        LabelWithToolTip { text: "M\nM"; level: 2 }
+        LabelWithToolTip { text: "M" }
+    }
 }

src/qml/BasicPlayListAlbumHeader.qml

@@ -52,7 +52,7 @@ Rectangle {
             id: albumHeaderTextColumn
 
             Layout.fillWidth: true
-            Layout.preferredHeight: background.ListView.view.sectionSizer.implicitHeight
+            Layout.preferredHeight: elisaTheme.sectionHeight
 
             Layout.leftMargin: !LayoutMirroring.enabled ? - Kirigami.Units.smallSpacing : 0
             Layout.rightMargin: LayoutMirroring.enabled ? - Kirigami.Units.smallSpacing : 0

src/qml/MediaPlayListView.qml

@@ -197,7 +197,6 @@ Kirigami.Page {
                 property alias list: playListView
                 ListView {
                     id: playListView
-                    readonly property alias sectionSizer: sectionSizer
 
                     focus: true
                     clip: true
@@ -368,16 +367,6 @@ Kirigami.Page {
                             onTriggered: playListNotification.visible = false
                         }
                     }
-
-                    // calculate a fixed hight for section delegates
-                    // workaround for QTBUG-52595
-                    Column {
-                        id: sectionSizer
-                        visible: false
-                        spacing: Kirigami.Units.smallSpacing
-                        LabelWithToolTip { text: "M\nM"; level: 2 }
-                        LabelWithToolTip { text: "M" }
-                    }
                 }
             }
         }