Add GdkWrapper to access non-introspectable Gdk API

See https://bugzilla.gnome.org/show_bug.cgi?id=663261

Signed-off-by: Raul Gutierrez Segales <rgs@collabora.co.uk>

src/sugar3/Makefile.am

@@ -33,6 +33,8 @@ libsugarext_la_SOURCES =		\
 	eggsmclient.h			\
 	eggsmclient-private.h		\
 	eggsmclient-xsmp.c		\
+	gdk-wrapper.c			\
+	gdk-wrapper.h			\
 	gsm-app.c			\
 	gsm-app.h			\
 	gsm-client.c			\
@@ -70,7 +72,8 @@ INTROSPECTION_GIRS = SugarExt-1.0.gir
 INTROSPECTION_SCANNER_ARGS = --identifier-prefix=Sugar --symbol-prefix=sugar \
 	--identifier-prefix=EggSM --symbol-prefix=egg_sm \
 	--identifier-prefix=Gsm --symbol-prefix=gsm \
-	--identifier-prefix=Acme --symbol-prefix=acme
+	--identifier-prefix=Acme --symbol-prefix=acme \
+	--identifier-prefix=GdkWrapper --symbol-prefix=gdk_wrapper
 SugarExt_1_0_gir_LIBS = libsugarext.la
 SugarExt_1_0_gir_FILES = \
 	acme-volume.c \
@@ -84,7 +87,10 @@ SugarExt_1_0_gir_FILES = \
 	gsm-xsmp.c \
 	gsm-xsmp.h \
 	sugar-key-grabber.c \
-	sugar-key-grabber.h
+	sugar-key-grabber.h \
+	gdk-wrapper.c \
+	gdk-wrapper.h
+
 SugarExt_1_0_gir_INCLUDES = Gtk-3.0 Gdk-3.0
 SugarExt_1_0_gir_PACKAGES = gtk+-3.0 gdk-3.0
 SugarExt_1_0_gir_EXPORT_PACKAGES = SugarExt-1.0

src/sugar3/gdk-wrapper.c

@@ -0,0 +1,59 @@
+/* gdk-wrapper.c
+ *
+ * Copyright (C) 1995-2007 Peter Mattis, Spencer Kimball,
+ *                         Josh MacDonald, Ryan Lortie
+ * Copyright (C) 2011 Raul Gutierrez Segales
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+/* Work around introspection unfriendly API in gdk */
+
+#include "gdk-wrapper.h"
+#include <string.h>
+
+/**
+ * gdk_wrapper_property_change:
+ * @window: a #GdkWindow
+ * @property: the property to change
+ * @type: the new type for the property. If @mode is
+ *   %GDK_PROP_MODE_PREPEND or %GDK_PROP_MODE_APPEND, then this
+ *   must match the existing type or an error will occur.
+ * @format: the new format for the property. If @mode is
+ *   %GDK_PROP_MODE_PREPEND or %GDK_PROP_MODE_APPEND, then this
+ *   must match the existing format or an error will occur.
+ * @mode: a value describing how the new data is to be combined
+ *   with the current data.
+ * @data: the data (a <literal>gchar *</literal>)
+ *
+ * Changes the contents of a property on a window.
+ */
+void
+gdk_wrapper_property_change (GdkWindow    *window,
+			     const gchar  *property,
+			     const gchar  *type,
+			     gint          format,
+			     GdkPropMode   mode,
+			     const gchar  *data)
+{
+  GdkAtom property_a = gdk_atom_intern (property, FALSE);
+  GdkAtom type_a = gdk_atom_intern (type, FALSE);
+  gint nelements = strlen(data);
+
+  gdk_property_change (window, property_a, type_a, format, mode,(const guchar *)data,
+		       nelements);
+}
+

src/sugar3/gdk-wrapper.h

@@ -0,0 +1,36 @@
+/* gdk-wrapper.h
+ * Copyright (C) 2011 Raul Gutierrez Segales
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef __GDK_WRAPPER_H__
+#define __GDK_WRAPPER_H__
+
+#include <gdk/gdk.h>
+
+
+
+void
+gdk_wrapper_property_change (GdkWindow    *window,
+			     const gchar  *property,
+			     const gchar  *type,
+			     gint          format,
+			     GdkPropMode   mode,
+			     const gchar *data);
+
+
+#endif /* __GDK_WRAPPER_H__ */

src/sugar3/wm.py

@@ -21,6 +21,7 @@ UNSTABLE. Used only internally by Activity and jarabe.
 
 from gi.repository import Gtk
 from gi.repository import Gdk
+from gi.repository import SugarExt
 import logging
 
 
@@ -42,7 +43,7 @@ def _property_change_trapped(window, prop, prop_type, format, mode, data):
     # pylint: disable=W0622
     Gdk.error_trap_push()
 
-    window.property_change(prop, prop_type, format, mode, data)
+    SugarExt.property_change(window, prop, prop_type, format, mode, data)
 
     error = Gdk.error_trap_pop()
     if error: