gio/gpermission.h

   1 /*
   2  * Copyright © 2010 Codethink Limited
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the licence, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  *
  19  * Author: Ryan Lortie <desrt@desrt.ca>
  20  */
  21
  22 #if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
  23 #error "Only <gio/gio.h> can be included directly."
  24 #endif
  25
  26 #ifndef __G_PERMISSION_H__
  27 #define __G_PERMISSION_H__
  28
  29 #include <gio/giotypes.h>
  30
  31 G_BEGIN_DECLS
  32
  33 #define G_TYPE_PERMISSION             (g_permission_get_type ())
  34 #define G_PERMISSION(inst)            (G_TYPE_CHECK_INSTANCE_CAST ((inst),   \
  35                                        G_TYPE_PERMISSION, GPermission))
  36 #define G_PERMISSION_CLASS(class)     (G_TYPE_CHECK_CLASS_CAST ((class),     \
  37                                        G_TYPE_PERMISSION, GPermissionClass))
  38 #define G_IS_PERMISSION(inst)         (G_TYPE_CHECK_INSTANCE_TYPE ((inst),   \
  39                                        G_TYPE_PERMISSION))
  40 #define G_IS_PERMISSION_CLASS(class)  (G_TYPE_CHECK_CLASS_TYPE ((class),     \
  41                                        G_TYPE_PERMISSION))
  42 #define G_PERMISSION_GET_CLASS(inst)  (G_TYPE_INSTANCE_GET_CLASS ((inst),    \
  43                                        G_TYPE_PERMISSION, GPermissionClass))
  44
  45 typedef struct _GPermissionPrivate    GPermissionPrivate;
  46 typedef struct _GPermissionClass      GPermissionClass;
  47
  48 struct _GPermission
  49 {
  50   GObject parent_instance;
  51
  52   /*< private >*/
  53   GPermissionPrivate *priv;
  54 };
  55
  56 struct _GPermissionClass {
  57   GObjectClass parent_class;
  58
  59   gboolean (*acquire)        (GPermission          *permission,
  60                               GCancellable         *cancellable,
  61                               GError              **error);
  62   void     (*acquire_async)  (GPermission          *permission,
  63                               GCancellable         *cancellable,
  64                               GAsyncReadyCallback   callback,
  65                               gpointer              user_data);
  66   gboolean (*acquire_finish) (GPermission          *permission,
  67                               GAsyncResult         *result,
  68                               GError              **error);
  69
  70   gboolean (*release)        (GPermission          *permission,
  71                               GCancellable         *cancellable,
  72                               GError              **error);
  73   void     (*release_async)  (GPermission          *permission,
  74                               GCancellable         *cancellable,
  75                               GAsyncReadyCallback   callback,
  76                               gpointer              user_data);
  77   gboolean (*release_finish) (GPermission          *permission,
  78                               GAsyncResult         *result,
  79                               GError              **error);
  80
  81   gpointer reserved[16];
  82 };
  83
  84 GType           g_permission_get_type           (void);
  85 gboolean        g_permission_acquire            (GPermission          *permission,
  86                                                  GCancellable         *cancellable,
  87                                                  GError              **error);
  88 void            g_permission_acquire_async      (GPermission          *permission,
  89                                                  GCancellable         *cancellable,
  90                                                  GAsyncReadyCallback   callback,
  91                                                  gpointer              user_data);
  92 gboolean        g_permission_acquire_finish     (GPermission          *permission,
  93                                                  GAsyncResult         *result,
  94                                                  GError              **error);
  95
  96 gboolean        g_permission_release            (GPermission          *permission,
  97                                                  GCancellable         *cancellable,
  98                                                  GError              **error);
  99 void            g_permission_release_async      (GPermission          *permission,
 100                                                  GCancellable         *cancellable,
 101                                                  GAsyncReadyCallback   callback,
 102                                                  gpointer              user_data);
 103 gboolean        g_permission_release_finish     (GPermission          *permission,
 104                                                  GAsyncResult         *result,
 105                                                  GError              **error);
 106
 107 gboolean        g_permission_get_allowed        (GPermission   *permission);
 108 gboolean        g_permission_get_can_acquire    (GPermission   *permission);
 109 gboolean        g_permission_get_can_release    (GPermission   *permission);
 110
 111 void            g_permission_impl_update        (GPermission  *permission,
 112                                                  gboolean      allowed,
 113                                                  gboolean      can_acquire,
 114                                                  gboolean      can_release);
 115
 116 G_END_DECLS
 117
 118 #endif /* __G_PERMISSION_H__ */