[broadway] Fix up toplevel content visibility in useToplevel mode

surfaces.canvas may change if we move to another document, so
reupdate the element to show after ensureSurfaceInDocument.

diff --git a/gdk/broadway/broadway.js b/gdk/broadway/broadway.js
index 83e2b28db80ab10ded8d9336a0d09373e3885620..838277188c9a98c1558168b9390d6216e804b937 100644 (file)
--- a/gdk/broadway/broadway.js
+++ b/gdk/broadway/broadway.js
@@ -433,6 +433,7 @@ function cmdShowSurface(id)
        }
 
        ensureSurfaceInDocument(surface, doc);
+       element = surface.canvas;
     } else {
        if (surface.frame) {
            element = surface.frame;