[gtk/wip/chergert/quartz4u: 57/116] macos: tweak initial placement of CSD windows

[Christian Hergert <chergert src gnome org>]

commit 37f89ab89d2c2e70f4bac9c0a80ac4bdac7ec1b8
Author: Christian Hergert <chergert redhat com>
Date:   Wed May 20 10:13:31 2020 -0700

    macos: tweak initial placement of CSD windows
    
    Currently, they show with an offset just so the shadow can be displayed.
    That isn't really ideal (although showing everything in the topleft corner
    isnt really ideal either).
    
    Given that we don't really tell applications to do window placement on
    other platforms, I'm not sure what the right answer here is. We might
    want to do some rudimentary placement of windows since Quartz
    doesn't seem to be doing that for us.

 gdk/macos/gdkmacostoplevelsurface.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
---
diff --git a/gdk/macos/gdkmacostoplevelsurface.c b/gdk/macos/gdkmacostoplevelsurface.c
index 6de799914b..66a83958ed 100644
--- a/gdk/macos/gdkmacostoplevelsurface.c
+++ b/gdk/macos/gdkmacostoplevelsurface.c
@@ -144,6 +144,25 @@ _gdk_macos_toplevel_surface_present (GdkToplevel       *toplevel,
   else
     _gdk_macos_toplevel_surface_unfullscreen (self);
 
+  if (GDK_SURFACE (self)->transient_for != NULL)
+    {
+    }
+  else
+    {
+      if (!self->decorated &&
+          !GDK_MACOS_SURFACE (self)->did_initial_present &&
+          GDK_SURFACE (self)->x == 0 &&
+          GDK_SURFACE (self)->y == 0 &&
+          (GDK_MACOS_SURFACE (self)->shadow_left ||
+           GDK_MACOS_SURFACE (self)->shadow_top))
+        {
+          int x = GDK_SURFACE (self)->x - GDK_MACOS_SURFACE (self)->shadow_left;
+          int y = GDK_SURFACE (self)->y - GDK_MACOS_SURFACE (self)->shadow_top;
+
+          _gdk_macos_surface_move (GDK_MACOS_SURFACE (self), x, y);
+        }
+    }
+
   _gdk_macos_surface_show (GDK_MACOS_SURFACE (self));
 
   GDK_MACOS_SURFACE (self)->did_initial_present = TRUE;