Fix content position of list view

The content position of list view is incorrect, if populate animation
is configured with BottomToTop or RightToLeft layout direction. This is
because, we are not setting internal position for first item in the
list view.

This patch will set correct internal postion to the first item in list
view.

Fixes: QTBUG-111050
Change-Id: I1a233a938e2c088d176d79871a08bcd2a8edd6b3
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/auto/quick/qquicklistview/tst_qquicklistview.cpp b/tests/auto/quick/qquicklistview/tst_qquicklistview.cpp
index 8a3a23826d..8bdd8fbcba 100644
--- a/tests/auto/quick/qquicklistview/tst_qquicklistview.cpp
+++ b/tests/auto/quick/qquicklistview/tst_qquicklistview.cpp
@@ -187,6 +187,7 @@ private slots:
 
     void populateTransitions();
     void populateTransitions_data();
+    void repositionFirstItemOnPopulateTransition();
     void sizeTransitions();
     void sizeTransitions_data();
 
@@ -6792,6 +6793,20 @@ void tst_QQuickListView::populateTransitions_data()
     QTest::newRow("empty to start with, no populate") << false << false << false;
 }
 
+// QTBUG-111050
+/* Reposition first visible item in list view on populate transition
+   Note: Occurs only in BottomToTop or RightToLeft layout */
+void tst_QQuickListView::repositionFirstItemOnPopulateTransition()
+{
+    QScopedPointer<QQuickView> window(createView());
+    window->setSource(testFileUrl("repositionListViewOnPopulateTransition.qml"));
+    window->show();
+    QVERIFY(QTest::qWaitForWindowExposed(window.data()));
+
+    QQuickListView *listview = qobject_cast<QQuickListView*>(window->rootObject());
+    QTRY_VERIFY(listview != nullptr);
+    QTRY_COMPARE(listview->contentY(), -100.0);
+}
 
 /*
  * Tests if the first visible item is not repositioned if the same item