~ubuntu-core-dev/update-notifier/ubuntu

/*

 * src/clipboard.c - X clipboard hack to detect if daemon is running

 *

 * Elliot Lee <sopwith@redhat.com>

 *

 * (C) Copyright 1999 Red Hat, Inc.

 *

 * Licensed under the GNU GPL v2.  See COPYING.

 */

#include "config.h"

#include <gconf/gconf-client.h>

#include <gdk/gdkx.h>

#include "update-notifier.h"

/*

 * clipboard_get_func - dummy get_func for gtk_clipboard_set_with_data ()

 */

static void

clipboard_get_func (GtkClipboard *clipboard __attribute__((__unused__)),

		   GtkSelectionData *selection_data __attribute__((__unused__)),

		    guint info __attribute__((__unused__)),

		    gpointer user_data_or_owner __attribute__((__unused__)))

{

}

/*

 * clipboard_clear_func - dummy clear_func for gtk_clipboard_set_with_data ()

 */

static void

clipboard_clear_func (GtkClipboard *clipboard __attribute__((__unused__)),

		      gpointer user_data_or_owner __attribute__((__unused__)))

{

}

/*

 * up_get_clipboard - try and get the CLIPBOARD_NAME clipboard

 *

 * Returns TRUE if successfully retrieved and FALSE otherwise.

 */

gboolean

up_get_clipboard (void)

{

	static const GtkTargetEntry targets[] = { {CLIPBOARD_NAME, 0, 0} };

	gboolean retval = FALSE;

	GtkClipboard *clipboard;

	Atom atom;

	Display *display;

	atom = gdk_x11_get_xatom_by_name (CLIPBOARD_NAME);

	display = gdk_x11_display_get_xdisplay (gdk_display_get_default ());

	XGrabServer (display);

	if (XGetSelectionOwner (display, atom) != None)

		goto out;

	clipboard = gtk_clipboard_get (gdk_atom_intern (CLIPBOARD_NAME, FALSE));

	if (gtk_clipboard_set_with_data (clipboard, targets,

					 G_N_ELEMENTS (targets),

					 clipboard_get_func,

					 clipboard_clear_func, NULL))

		retval = TRUE;

out:

	XUngrabServer (display);

	gdk_flush ();

	return retval;

}