1 files changed, 67 insertions, 0 deletions
diff --git a/src/quicktemplates/qquickpopupanchors.cpp b/src/quicktemplates/qquickpopupanchors.cpp
new file mode 100644
index 0000000000..963dd21aa4
--- /dev/null
+++ b/src/quicktemplates/qquickpopupanchors.cpp
@@ -0,0 +1,67 @@
+// Copyright (C) 2018 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qquickpopupanchors_p.h"
+#include "qquickpopupanchors_p_p.h"
+#include "qquickpopup_p_p.h"
+
+QT_BEGIN_NAMESPACE
+
+QQuickPopupAnchors::QQuickPopupAnchors(QQuickPopup *popup)
+    : QObject(*(new QQuickPopupAnchorsPrivate), popup)
+{
+    Q_D(QQuickPopupAnchors);
+    d->popup = popup;
+}
+
+QQuickPopupAnchors::~QQuickPopupAnchors()
+{
+    Q_D(const QQuickPopupAnchors);
+    if (d->centerIn) {
+        auto centerInPrivate = QQuickItemPrivate::get(d->centerIn);
+        centerInPrivate->removeItemChangeListener(this, QQuickItemPrivate::Destroyed);
+    }
+}
+
+QQuickItem *QQuickPopupAnchors::centerIn() const
+{
+    Q_D(const QQuickPopupAnchors);
+    return d->centerIn;
+}
+
+void QQuickPopupAnchors::setCenterIn(QQuickItem *item)
+{
+    Q_D(QQuickPopupAnchors);
+    if (item == d->centerIn)
+        return;
+
+    if (d->centerIn) {
+        auto centerInPrivate = QQuickItemPrivate::get(d->centerIn);
+        centerInPrivate->removeItemChangeListener(this, QQuickItemPrivate::Destroyed);
+    }
+
+    d->centerIn = item;
+
+    if (d->centerIn) {
+        auto centerInPrivate = QQuickItemPrivate::get(d->centerIn);
+        centerInPrivate->addItemChangeListener(this, QQuickItemPrivate::Destroyed);
+    }
+
+    QQuickPopupPrivate::get(d->popup)->reposition();
+
+    emit centerInChanged();
+}
+
+void QQuickPopupAnchors::resetCenterIn()
+{
+    setCenterIn(nullptr);
+}
+
+void QQuickPopupAnchors::itemDestroyed(QQuickItem *)
+{
+    resetCenterIn();
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickpopupanchors_p.cpp"