[gtk+] gdk/quartz: Fix mixup in attributes usage creating window implementation

[Thibault Saunier <tsaunier src gnome org>]

commit fb581a1084ed8949c6b8c666f07a3239153c03f6
Author: Thibault Saunier <tsaunier gnome org>
Date:   Sun Feb 22 13:01:17 2015 +0100

    gdk/quartz: Fix mixup in attributes usage creating window implementation
    
    First, attributes can be NULL (which is always the case when calling
    gdk_window_ensure_native) so do not unconditionally dereference it.
    
    Then the window_type should be taken directly from the GdkWindow as
    in other backends (such as the X11 one for example).
    
    https://bugzilla.gnome.org/show_bug.cgi?id=744942

 gdk/quartz/gdkwindow-quartz.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/gdk/quartz/gdkwindow-quartz.c b/gdk/quartz/gdkwindow-quartz.c
index 2a2444e..6306034 100644
--- a/gdk/quartz/gdkwindow-quartz.c
+++ b/gdk/quartz/gdkwindow-quartz.c
@@ -818,7 +818,7 @@ _gdk_quartz_display_create_window_impl (GdkDisplay    *display,
 
   impl->view = NULL;
 
-  switch (attributes->window_type)
+  switch (window->window_type)
     {
     case GDK_WINDOW_TOPLEVEL:
     case GDK_WINDOW_TEMP:
@@ -846,8 +846,9 @@ _gdk_quartz_display_create_window_impl (GdkDisplay    *display,
                                    window->width,
                                    window->height);
 
-        if (attributes->window_type == GDK_WINDOW_TEMP ||
-            attributes->type_hint == GDK_WINDOW_TYPE_HINT_SPLASHSCREEN)
+        if (window->window_type == GDK_WINDOW_TEMP ||
+            ((attributes_mask & GDK_WA_TYPE_HINT) &&
+              attributes->type_hint == GDK_WINDOW_TYPE_HINT_SPLASHSCREEN))
           {
             style_mask = NSBorderlessWindowMask;
           }