QQuickPopup: prepare for overriding the positioner

Create the positioner lazily to make it possible for QQuickPopup
sub-classes to override the positioner, and give the upcoming
QQuickPopupPositioner sub-classes access to the popup instance.

- QQuickDrawer has custom positioning along the window edges
- QQuickMenu has custom positioning for cascading sub-menus
- in the future, native menus, native tooltips, and top-level
  popups/dialogs will also need different positioners.

Change-Id: I7c3ac2c38b00ef92410b2cdf4e51fa974efb534f
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/quicktemplates2/qquickpopuppositioner.cpp b/src/quicktemplates2/qquickpopuppositioner.cpp
index 60a989da..1c2cd1c8 100644
--- a/src/quicktemplates2/qquickpopuppositioner.cpp
+++ b/src/quicktemplates2/qquickpopuppositioner.cpp
@@ -67,6 +67,11 @@ QQuickPopupPositioner::~QQuickPopupPositioner()
     }
 }
 
+QQuickPopup *QQuickPopupPositioner::popup() const
+{
+    return m_popup;
+}
+
 QQuickItem *QQuickPopupPositioner::parentItem() const
 {
     return m_parentItem;