From d8faf8ab08747f90a7b6b566927711f8e96c0c87 Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Mon, 19 Sep 2022 13:08:27 +0300
Subject: [PATCH] Fix multi-screen drag-and-drop in WindowHeap

DND was failing with the following error

file:///data/projects/usr/lib/qml/org/kde/kwin/private/effects/WindowHeap.qml:96: TypeError: Cannot read property 'mapToGlobal' of undefined
---
 src/effects/private/qml/WindowHeap.qml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/effects/private/qml/WindowHeap.qml b/src/effects/private/qml/WindowHeap.qml
index 2c59023976..242776e67f 100644
--- a/src/effects/private/qml/WindowHeap.qml
+++ b/src/effects/private/qml/WindowHeap.qml
@@ -93,9 +93,7 @@ FocusScope {
             for (let i in screens) {
                 if (targetScreen === screens[i]) {
                     found = true;
-                    let globalPos = item.screen.mapToGlobal(item.mapToItem(null, 0,0));
-                    let heapRelativePos = targetScreen.mapFromGlobal(globalPos);
-                    heapRelativePos = heap.mapFromItem(null, heapRelativePos.x, heapRelativePos.y);
+                    const heapRelativePos = heap.mapFromGlobal(item.mapToGlobal(0, 0));
                     otherScreenThumbnail.cloneOf = item
                     otherScreenThumbnail.x = heapRelativePos.x;
                     otherScreenThumbnail.y = heapRelativePos.y;