Port key handling code to GTK3

GTK3 removed some previously-deprecated API that we still use. This
includes GDK_DISPLAY(), gdk_x11_drawable_get_xdisplay(), and some
key constants.

Port our code to the new API.

[split patch into several parts, added minimal description]
Signed-off-by: Sascha Silbe <silbe@activitycentral.com>

src/sugar3/eggaccelerators.c

@@ -352,9 +352,11 @@ egg_accelerator_parse_virtual (const gchar            *accelerator,
 			bad_keyval = TRUE;
 		    }
 		}
-	    } else if (keycode != NULL)
+	    } else if (keycode != NULL) {
-		*keycode = XKeysymToKeycode (GDK_DISPLAY(), keyval);
+		GdkDisplay *display = gdk_display_get_default ();
-
+		*keycode = XKeysymToKeycode (GDK_DISPLAY_XDISPLAY(display),
+					     keyval);
+	    }
           accelerator += len;
           len -= len;
 	}
@@ -624,20 +626,20 @@ reload_modmap (GdkKeymap *keymap,
       j = 0;
       while (j < n_entries)
         {
-          if (keyvals[j] == GDK_Num_Lock)
+          if (keyvals[j] == GDK_KEY_Num_Lock)
             mask |= EGG_VIRTUAL_NUM_LOCK_MASK;
-          else if (keyvals[j] == GDK_Scroll_Lock)
+          else if (keyvals[j] == GDK_KEY_Scroll_Lock)
             mask |= EGG_VIRTUAL_SCROLL_LOCK_MASK;
-          else if (keyvals[j] == GDK_Meta_L ||
+	  else if (keyvals[j] == GDK_KEY_Meta_L ||
-                   keyvals[j] == GDK_Meta_R)
+                   keyvals[j] == GDK_KEY_Meta_R)
             mask |= EGG_VIRTUAL_META_MASK;
-          else if (keyvals[j] == GDK_Hyper_L ||
+          else if (keyvals[j] == GDK_KEY_Hyper_L ||
-                   keyvals[j] == GDK_Hyper_R)
+                   keyvals[j] == GDK_KEY_Hyper_R)
             mask |= EGG_VIRTUAL_HYPER_MASK;
-          else if (keyvals[j] == GDK_Super_L ||
+          else if (keyvals[j] == GDK_KEY_Super_L ||
-                   keyvals[j] == GDK_Super_R)
+                   keyvals[j] == GDK_KEY_Super_R)
             mask |= EGG_VIRTUAL_SUPER_MASK;
-          else if (keyvals[j] == GDK_Mode_switch)
+          else if (keyvals[j] == GDK_KEY_Mode_switch)
             mask |= EGG_VIRTUAL_MODE_SWITCH_MASK;
 
           ++j;

src/sugar3/eggdesktopfile.c

@@ -32,8 +32,8 @@
 
 #include <glib/gi18n.h>
 #include <gdk/gdk.h>
-#include <gtk/gtkwindow.h>
+#include <gtk/gtk.h>
-#include <gdk/gdkx.h>
+
 
 struct EggDesktopFile {
   GKeyFile           *key_file;

src/sugar3/sugar-key-grabber.c

@@ -18,9 +18,9 @@
  */
 
 #include <X11/X.h>
-#include <gdk/gdkscreen.h>
+#include <X11/Xlib.h>
-#include <gdk/gdkx.h>
 #include <gdk/gdk.h>
+#include <gdk/gdkx.h>
 
 #include "sugar-key-grabber.h"
 #include "eggaccelerators.h"
@@ -160,11 +160,12 @@ sugar_key_grabber_init(SugarKeyGrabber *grabber)
 static void
 grab_key_real (Key *key, GdkWindow *root, gboolean grab, int result)
 {
+        Display *display = GDK_DISPLAY_XDISPLAY(gdk_display_get_default ());
         if (grab)
-                XGrabKey (GDK_DISPLAY(), key->keycode, (result | key->state),
+                XGrabKey (display, key->keycode, (result | key->state),
                                 GDK_WINDOW_XID (root), True, GrabModeAsync, GrabModeAsync);
         else
-                XUngrabKey(GDK_DISPLAY(), key->keycode, (result | key->state),
+                XUngrabKey(display, key->keycode, (result | key->state),
                                 GDK_WINDOW_XID (root));
 }
 
@@ -255,7 +256,7 @@ sugar_key_grabber_is_modifier(SugarKeyGrabber *grabber, guint keycode, guint mas
 	gint start, end, i, mod_index;
 	gboolean is_modifier = FALSE;
 
-	xdisplay = gdk_x11_drawable_get_xdisplay(GDK_DRAWABLE (grabber->root));
+	xdisplay = GDK_DISPLAY_XDISPLAY(gdk_display_get_default ());
 
 	modmap = XGetModifierMapping(xdisplay);