[gtk+/wip/clipboard] GdkClipboard: always provide content types

[Matthias Clasen <matthiasc src gnome org>]

commit 5ffe8e53d2412811a93b463d17aaa941ad2b1503
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 16 16:59:26 2014 -0400

    GdkClipboard: always provide content types
    
    It is a bit awkward if gdk_clipboard_get_content_types
    returns nothing for text or image content. So, just return
    the 'standard' content types: 'text/plain' and 'image/png'.

 gdk/gdkclipboard.c |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkclipboard.c b/gdk/gdkclipboard.c
index 9a52e20..7b3c135 100644
--- a/gdk/gdkclipboard.c
+++ b/gdk/gdkclipboard.c
@@ -111,11 +111,20 @@ _gdk_clipboard_set_available_content (GdkClipboard        *clipboard,
                                       const gchar         **content_types)
 {
   GdkClipboardPrivate *priv = gdk_clipboard_get_instance_private (clipboard);
+  const gchar *text_content_types[] = { "text/plain", NULL };
+  const gchar *image_content_types[] = { "image/png", NULL };
+
+  if (content_types == NULL)
+    {
+      if (content == TEXT_CONTENT)
+        content_types = text_content_types;
+      else if (content == IMAGE_CONTENT)
+        content_types = image_content_types;
+    }
 
   priv->content = content;
   g_strfreev (priv->content_types);
   priv->content_types = g_strdupv ((gchar **)content_types);
-  /* FIXME: should we automatically set text / image content types ? */
 
   g_signal_emit (clipboard, signals[CHANGED], 0);
 }