Call updateSize only for new windows

This avoids "No update on item size as the buffer is currently
locked" warnings when windows are hold in a model and a window is
closed and removed from the model. The problem was apparent in many
QtApplicationManager examples.

Change-Id: Icb9d4cd37d3a4a8ee4214a92aed8422794729d9d
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
(cherry picked from commit 074ac72067b86420904e350b01db374de706a064)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 7 insertions, 7 deletions

diff --git a/src/compositor/compositor_api/qwaylandquickitem.cpp b/src/compositor/compositor_api/qwaylandquickitem.cpp
index 7e1227db..c00b904e 100644
--- a/src/compositor/compositor_api/qwaylandquickitem.cpp
+++ b/src/compositor/compositor_api/qwaylandquickitem.cpp
@@ -1369,15 +1369,15 @@ void QWaylandQuickItem::updateWindow()
     if (d->connectedWindow) {
         connect(d->connectedWindow, &QQuickWindow::beforeSynchronizing, this, &QWaylandQuickItem::beforeSync, Qt::DirectConnection);
         connect(d->connectedWindow, &QQuickWindow::screenChanged, this, &QWaylandQuickItem::updateSize); // new screen may have new dpr
-    }
 
-    if (compositor() && d->connectedWindow) {
-        QWaylandOutput *output = compositor()->outputFor(d->connectedWindow);
-        Q_ASSERT(output);
-        d->view->setOutput(output);
-    }
+        if (compositor()) {
+            QWaylandOutput *output = compositor()->outputFor(d->connectedWindow);
+            Q_ASSERT(output);
+            d->view->setOutput(output);
+        }
 
-    updateSize(); // because scaleFactor depends on devicePixelRatio, which may be different for the new window
+        updateSize(); // because scaleFactor depends on devicePixelRatio, which may be different for the new window
+    }
 }
 
 void QWaylandQuickItem::updateOutput()