/* GStreamer base utils library plugin install support for applications

 * Copyright (C) 2007 Tim-Philipp Müller <tim centricular net>

 * Copyright (C) 2006 Ryan Lortie <desrt desrt ca>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library 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

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#ifndef __GST_PB_UTILS_INSTALL_PLUGINS_H__

#define __GST_PB_UTILS_INSTALL_PLUGINS_H__

#include <glib-object.h>

G_BEGIN_DECLS

/*

 * functions for use by applications to initiate installation of missing plugins

 */

/**

 * GstInstallPluginsReturn:

 * @GST_INSTALL_PLUGINS_SUCCESS: all of the requested plugins could be

 *     installed

 * @GST_INSTALL_PLUGINS_NOT_FOUND: no appropriate installation candidate for

 *     any of the requested plugins could be found. Only return this if nothing

 *     has been installed. Return #GST_INSTALL_PLUGINS_PARTIAL_SUCCESS if

 *     some (but not all) of the requested plugins could be installed.

 * @GST_INSTALL_PLUGINS_ERROR: an error occured during the installation. If

 *     this happens, the  user has already seen an error message and another

 *     one should not be displayed

 * @GST_INSTALL_PLUGINS_CRASHED: the installer had an unclean exit code

 *     (ie. death by signal)

 * @GST_INSTALL_PLUGINS_PARTIAL_SUCCESS: some of the requested plugins could

 *     be installed, but not all

 * @GST_INSTALL_PLUGINS_USER_ABORT: the user has aborted the installation

 * @GST_INSTALL_PLUGINS_INVALID: the helper returned an invalid status code

 * @GST_INSTALL_PLUGINS_STARTED_OK: returned by gst_install_plugins_async() to

 *     indicate that everything went fine so far and the provided callback

 *     will be called with the result of the installation later

 * @GST_INSTALL_PLUGINS_INTERNAL_FAILURE: some internal failure has

 *     occured when trying to start the installer

 * @GST_INSTALL_PLUGINS_HELPER_MISSING: the helper script to call the

 *     actual installer is not installed

 * @GST_INSTALL_PLUGINS_INSTALL_IN_PROGRESS: a previously-started plugin

 *     installation is still in progress, try again later

 *

 * Result codes returned by gst_install_plugins_async() and

 * gst_install_plugins_sync(), and also the result code passed to the

 * #GstInstallPluginsResultFunc specified with gst_install_plugin_async().

 *

 * These codes indicate success or failure of starting an external installer

 * program and to what extent the requested plugins could be installed.

 *

 * Since: 0.10.12

 */

typedef enum {

  /* Return codes from the installer. Returned by gst_install_plugins_sync(),

   * or passed as result code to your #GstInstallPluginsResultFunc */

  GST_INSTALL_PLUGINS_SUCCESS = 0,

  GST_INSTALL_PLUGINS_NOT_FOUND = 1,

  GST_INSTALL_PLUGINS_ERROR = 2,

  GST_INSTALL_PLUGINS_PARTIAL_SUCCESS = 3,

  GST_INSTALL_PLUGINS_USER_ABORT = 4,

  /* Returned by gst_install_plugins_sync(), or passed as result code to your

   * #GstInstallPluginsResultFunc */

  GST_INSTALL_PLUGINS_CRASHED = 100,

  GST_INSTALL_PLUGINS_INVALID,

  /* Return codes from starting the external helper, may be returned by both

   * gst_install_plugins_sync() and gst_install_plugins_async(), but should

   * never be seen by a #GstInstallPluginsResultFunc */

  GST_INSTALL_PLUGINS_STARTED_OK = 200,

  GST_INSTALL_PLUGINS_INTERNAL_FAILURE,

  GST_INSTALL_PLUGINS_HELPER_MISSING,

  GST_INSTALL_PLUGINS_INSTALL_IN_PROGRESS

} GstInstallPluginsReturn;

/**

 * GstInstallPluginsContext:

 *

 * Opaque context structure for the plugin installation. Use the provided

 * API to set details on it.

 *

 * Since: 0.10.12

 */

#define GST_TYPE_INSTALL_PLUGINS_CONTEXT	(gst_install_plugins_context_get_type())

typedef struct _GstInstallPluginsContext GstInstallPluginsContext;

#ifdef __SYMBIAN32__

IMPORT_C

#endif

GstInstallPluginsContext * gst_install_plugins_context_new (void);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void   gst_install_plugins_context_free    (GstInstallPluginsContext * ctx);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void   gst_install_plugins_context_set_xid (GstInstallPluginsContext * ctx,

                                            guint                      xid);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

GType  gst_install_plugins_context_get_type (void);

/**

 * GstInstallPluginsResultFunc:

 * @result: whether the installation of the requested plugins succeeded or not

 * @user_data: the user data passed to gst_install_plugins_async()

 *

 * The prototype of the callback function that will be called once the

 * external plugin installer program has returned. You only need to provide

 * a callback function if you are using the asynchronous interface.

 *

 * Since: 0.10.12

 */

typedef void (*GstInstallPluginsResultFunc) (GstInstallPluginsReturn  result,

                                             gpointer                 user_data);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

GstInstallPluginsReturn  gst_install_plugins_async (gchar                    ** details,

                                                    GstInstallPluginsContext  * ctx,

                                                    GstInstallPluginsResultFunc func,

                                                    gpointer                    user_data);

GstInstallPluginsReturn  gst_install_plugins_sync  (gchar                    ** details,

                                                    GstInstallPluginsContext  * ctx);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

const gchar * gst_install_plugins_return_get_name (GstInstallPluginsReturn ret);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

gboolean      gst_install_plugins_installation_in_progress (void);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

gboolean      gst_install_plugins_supported (void);

G_END_DECLS

#endif /* __GST_PB_UTILS_INSTALL_PLUGINS_H__ */