Don't use gtk_window_resize to resize offscreen window

* src/xwidget.c (Fmake_xwidget): Use gtk_container_check_resize instead.
(Fxwidget_resize): Use gtk_container_check_resize instead.

; Gtk+3 document says:
; > Applications should not use any API specific to GtkWindow
; > to operate on this object. It should be treated as a GtkBin
; > that has no parent widget.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/xwidget.c b/src/xwidget.c
index c9fc706663b..893292cf5ae 100644
--- a/src/xwidget.c
+++ b/src/xwidget.c
@@ -122,8 +122,12 @@ Returns the newly constructed xwidget, or nil if construction fails.  */)
 # endif
 
       xw->widgetwindow_osr = gtk_offscreen_window_new ();
+#ifndef HAVE_PGTK
       gtk_window_resize (GTK_WINDOW (xw->widgetwindow_osr), xw->width,
                          xw->height);
+#else
+      gtk_container_check_resize (GTK_CONTAINER (xw->widgetwindow_osr));
+#endif
 
       if (EQ (xw->type, Qwebkit))
         {
@@ -966,8 +970,12 @@ DEFUN ("xwidget-resize", Fxwidget_resize, Sxwidget_resize, 3, 3, 0,
 #ifdef USE_GTK
   if (xw->widget_osr)
     {
+#ifndef HAVE_PGTK
       gtk_window_resize (GTK_WINDOW (xw->widgetwindow_osr), xw->width,
                          xw->height);
+#else
+      gtk_container_check_resize (GTK_CONTAINER (xw->widgetwindow_osr));
+#endif
       gtk_container_resize_children (GTK_CONTAINER (xw->widgetwindow_osr));
       gtk_widget_set_size_request (GTK_WIDGET (xw->widget_osr), xw->width,
                                    xw->height);