Fix crash with nested xdg popups

Popups that are children of popups would get a null parent in pure-qml.
This would cause a crash in XdgPopupV5Integration.

This change fixes pure-qml to set the parent correctly, and also adds
null pointer checks to XdgPopupV5Integration.

Change-Id: Ica5bd6c1a0853fbec1b30bc6ffff806b2cfd15f8
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

1 files changed, 2 insertions, 1 deletions

diff --git a/examples/wayland/pure-qml/qml/main.qml b/examples/wayland/pure-qml/qml/main.qml
index 9bce7bcb8..5eece078b 100644
--- a/examples/wayland/pure-qml/qml/main.qml
+++ b/examples/wayland/pure-qml/qml/main.qml
@@ -81,7 +81,8 @@ WaylandCompositor {
         }
         onXdgPopupCreated: {
             var parentView = viewsBySurface[xdgPopup.parentSurface];
-            chromeComponent.createObject(parentView, { "shellSurface": xdgPopup } );
+            var item = chromeComponent.createObject(parentView, { "shellSurface": xdgPopup } );
+            viewsBySurface[xdgPopup.surface] = item;
         }
     }