Item views: fix error when accessing attached view from non-delegates

Ensure that the view is set on the relevant attached objects before
QQmlComponent::completeCreate() is called, which would otherwise result
in a TypeError because the view would be set too late.

Fixes: QTBUG-104026
Task-number: QTBUG-98718
Change-Id: Ic65370bd4534e7452f2377ab4d60a74badf02079
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
(cherry picked from commit dbd108a7997f129004bbed523db75d4aa9d0ab6c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/quick/items/qquickgridview.cpp b/src/quick/items/qquickgridview.cpp
index 5c4e4d7018..e0adac3337 100644
--- a/src/quick/items/qquickgridview.cpp
+++ b/src/quick/items/qquickgridview.cpp
@@ -208,6 +208,8 @@ public:
     void updateHeader() override;
     void updateFooter() override;
 
+    void initializeComponentItem(QQuickItem *item) const override;
+
     void changedVisibleIndex(int newIndex) override;
     void initializeCurrentItem() override;
 
@@ -853,6 +855,14 @@ void QQuickGridViewPrivate::updateFooter()
         emit q->footerItemChanged();
 }
 
+void QQuickGridViewPrivate::initializeComponentItem(QQuickItem *item) const
+{
+    QQuickGridViewAttached *attached = static_cast<QQuickGridViewAttached *>(
+        qmlAttachedPropertiesObject<QQuickGridView>(item));
+    if (attached)
+        attached->setView(const_cast<QQuickGridView*>(q_func()));
+}
+
 void QQuickGridViewPrivate::updateHeader()
 {
     Q_Q(QQuickGridView);