[gtk+] Fix gdk_x11_display_text_property_to_text_list

[Matthias Clasen <matthiasc src gnome org>]

commit 29eb3fba5f3a8e85c19cd3bd404f9e88a1541805
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 24 16:27:31 2010 -0500

    Fix gdk_x11_display_text_property_to_text_list
    
    This was an incomplete attempt to get rid of the custom free function.
    Lets just keep it for now. Bug 637849, patch by Dan Winship.
    
    Also add a test case for this function.

 gdk/tests/Makefile.am      |    4 +++
 gdk/tests/encoding.c       |   46 ++++++++++++++++++++++++++++++++++++++++++++
 gdk/x11/gdkselection-x11.c |    4 +-
 3 files changed, 52 insertions(+), 2 deletions(-)
---
diff --git a/gdk/tests/Makefile.am b/gdk/tests/Makefile.am
index 9a75314..e23df12 100644
--- a/gdk/tests/Makefile.am
+++ b/gdk/tests/Makefile.am
@@ -23,6 +23,10 @@ TEST_PROGS        += gdk-color
 gdk_color_SOURCES  = gdk-color.c
 gdk_color_LDADD    = $(progs_ldadd)
 
+TEST_PROGS        += encoding
+encoding_SOURCES  = encoding.c
+encoding_LDADD    = $(progs_ldadd)
+
 CLEANFILES = \
 	cairosurface.png	\
 	gdksurface.png
diff --git a/gdk/tests/encoding.c b/gdk/tests/encoding.c
new file mode 100644
index 0000000..e1d0307
--- /dev/null
+++ b/gdk/tests/encoding.c
@@ -0,0 +1,46 @@
+#include <gdk/gdk.h>
+#ifdef GDK_WINDOWING_X11
+#include "x11/gdkx.h"
+#endif
+
+static void
+test_to_text_list (void)
+{
+  GdkDisplay *display;
+
+  display = gdk_display_get_default ();
+
+#ifdef GDK_WINDOWING_X11
+  if (GDK_IS_X11_DISPLAY (display))
+    {
+      GdkAtom encoding;
+      gint format;
+      const guchar *text;
+      gint length;
+      gchar **list;
+      gint n;
+
+      encoding = gdk_atom_intern ("UTF8_STRING", FALSE);
+      format = 8;
+      text = (const guchar*)"abcdef \304\201 \304\205\0ABCDEF \304\200 \304\204";
+      length = 25;
+      n = gdk_x11_display_text_property_to_text_list (display, encoding, format, text, length, &list);
+      g_assert_cmpint (n, ==, 2);
+      g_assert (g_str_has_prefix (list[0], "abcdef "));
+      g_assert (g_str_has_prefix (list[1], "ABCDEF "));
+
+      gdk_x11_free_text_list (list);
+    }
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  g_test_init (&argc, &argv, NULL);
+  gdk_init (&argc, &argv);
+
+  g_test_add_func ("/encoding/to-text-list", test_to_text_list);
+
+  return g_test_run ();
+}
diff --git a/gdk/x11/gdkselection-x11.c b/gdk/x11/gdkselection-x11.c
index 5a0dfea..f13207b 100644
--- a/gdk/x11/gdkselection-x11.c
+++ b/gdk/x11/gdkselection-x11.c
@@ -340,7 +340,7 @@ _gdk_x11_display_send_selection_notify (GdkDisplay       *display,
  * @format: the format of the property
  * @text: The text data
  * @length: The number of items to transform
- * @list: location to store a terminated array of strings in
+ * @list: location to store an  array of strings in
  *    the encoding of the current locale. This array should be
  *    freed using gdk_free_text_list().
  *
@@ -385,7 +385,7 @@ gdk_x11_display_text_property_to_text_list (GdkDisplay   *display,
   else
     {
       if (list)
-        *list = g_strdupv (local_list);
+        *list = local_list;
       else
         XFreeStringList (local_list);