Merge pull request #6366 from scottjones/fix-notification-surface-resize

Fix notification popups stretching/squishing when the count changes

shell/plugins/notifications/Service.qml

@@ -787,26 +787,22 @@ Item {
       readonly property var popupPlacement: NotificationLogic.popupPlacement(
         service.barPosition, service.barClearance, Style.gapsOut)
 
-      anchors {
-        top: popupWindow.popupPlacement.anchors.top
-        bottom: popupWindow.popupPlacement.anchors.bottom
-        left: popupWindow.popupPlacement.anchors.left
-        right: popupWindow.popupPlacement.anchors.right
-      }
-      margins {
-        top: popupWindow.popupPlacement.margins.top
-        bottom: popupWindow.popupPlacement.margins.bottom
-        left: popupWindow.popupPlacement.margins.left
-        right: popupWindow.popupPlacement.margins.right
-      }
+      // Full-screen, fixed-size surface (like the OSD overlay). Adding or
+      // removing a toast changes only the content inside; the Wayland surface
+      // never resizes, so the compositor can't briefly scale a stale buffer --
+      // which is what stretched/squished the cards during count changes.
+      anchors { top: true; bottom: true; left: true; right: true }
 
-      implicitWidth: popupColumn.implicitWidth
-      implicitHeight: popupColumn.implicitHeight
+      // Keep the surface click-through except over the toast column, so the
+      // rest of the (invisible) full-screen overlay never eats input.
+      mask: Region { item: popupColumn }
 
       ColumnLayout {
         id: popupColumn
         anchors.right: parent.right
         anchors.top: parent.top
+        anchors.topMargin: popupWindow.popupPlacement.margins.top
+        anchors.rightMargin: popupWindow.popupPlacement.margins.right
         spacing: Style.space(8)
 
         Repeater {