[gtk/wip/matthiasc/popup5: 75/150] gdk: Introduce a popup surface type

[Matthias Clasen <matthiasc src gnome org>]

commit 13a49615f175b5b2cb1ccb4a164e4403fb8e72cd
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Apr 22 13:16:26 2019 +0000

    gdk: Introduce a popup surface type
    
    This surface type is meant to have semantics
    similar to xdg-popup, with a mandatory parent,
    and relative placement using gdk_surface_move_to_rect.

 gdk/gdksurface.c | 4 ++--
 gdk/gdksurface.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gdk/gdksurface.c b/gdk/gdksurface.c
index 09fd0cd1d1..bf7e5bf376 100644
--- a/gdk/gdksurface.c
+++ b/gdk/gdksurface.c
@@ -806,8 +806,8 @@ gdk_surface_new_popup (GdkDisplay *display,
   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
   g_return_val_if_fail (GDK_IS_SURFACE (parent), NULL);
 
-  surface = gdk_surface_new (display, GDK_SURFACE_TEMP,
-                             NULL, 0, 0, 100, 100);
+  surface = gdk_surface_new (display, GDK_SURFACE_POPUP,
+                             parent, 0, 0, 100, 100);
 
   gdk_surface_set_transient_for (surface, parent);
   gdk_surface_set_type_hint (surface, GDK_SURFACE_TYPE_HINT_MENU);
diff --git a/gdk/gdksurface.h b/gdk/gdksurface.h
index f3ab38f851..938c59ba17 100644
--- a/gdk/gdksurface.h
+++ b/gdk/gdksurface.h
@@ -43,6 +43,7 @@ typedef struct _GdkGeometry          GdkGeometry;
  * GdkSurfaceType:
  * @GDK_SURFACE_TOPLEVEL: toplevel window (used to implement #GtkWindow)
  * @GDK_SURFACE_TEMP: override redirect temporary surface (used to implement #GtkMenu)
+ * @GDK_SURFACE_POPUP: popup window with semantics like xdg-popover
  *
  * Describes the kind of surface.
  */
@@ -50,6 +51,7 @@ typedef enum
 {
   GDK_SURFACE_TOPLEVEL,
   GDK_SURFACE_TEMP,
+  GDK_SURFACE_POPUP
 } GdkSurfaceType;
 
 /* Size restriction enumeration.