atk/atkaction.h

   1 /* ATK -  Accessibility Toolkit
   2  * Copyright 2001 Sun Microsystems Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, 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  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library 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
  20 #if defined(ATK_DISABLE_SINGLE_INCLUDES) && !defined (__ATK_H_INSIDE__) && !defined (ATK_COMPILATION)
  21 #error "Only <atk/atk.h> can be included directly."
  22 #endif
  23
  24 #ifndef __ATK_ACTION_H__
  25 #define __ATK_ACTION_H__
  26
  27 #include <atk/atkobject.h>
  28
  29 G_BEGIN_DECLS
  30
  31 /*
  32  * The interface AtkAction should be supported by any object that can
  33  * perform one or more actions. The interface provides the standard
  34  * mechanism for an assistive technology to determine what those actions
  35  * are as well as tell the object to perform them. Any object that can
  36  * be manipulated should support this interface.
  37  */
  38
  39
  40 #define ATK_TYPE_ACTION                    (atk_action_get_type ())
  41 #define ATK_IS_ACTION(obj)                 G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_ACTION)
  42 #define ATK_ACTION(obj)                    G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_ACTION, AtkAction)
  43 #define ATK_ACTION_GET_IFACE(obj)          (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_ACTION, AtkActionIface))
  44
  45 #ifndef _TYPEDEF_ATK_ACTION_
  46 #define _TYPEDEF_ATK_ACTION_
  47 typedef struct _AtkAction AtkAction;
  48 #endif
  49 typedef struct _AtkActionIface AtkActionIface;
  50
  51 struct _AtkActionIface
  52 {
  53   GTypeInterface parent;
  54
  55   gboolean                (*do_action)         (AtkAction         *action,
  56                                                 gint              i);
  57   gint                    (*get_n_actions)     (AtkAction         *action);
  58   const gchar*            (*get_description)   (AtkAction         *action,
  59                                                 gint              i);
  60   const gchar*            (*get_name)          (AtkAction         *action,
  61                                                 gint              i);
  62   const gchar*            (*get_keybinding)    (AtkAction         *action,
  63                                                 gint              i);
  64   gboolean                (*set_description)   (AtkAction         *action,
  65                                                 gint              i,
  66                                                 const gchar       *desc);
  67   const gchar*            (*get_localized_name)(AtkAction         *action,
  68                                                 gint              i);
  69 };
  70
  71 GType atk_action_get_type (void);
  72
  73 /*
  74  * These are the function which would be called by an application with
  75  * the argument being a AtkObject object cast to (AtkAction).
  76  *
  77  * The function will just check that * the corresponding
  78  * function pointer is not NULL and will call it.
  79  *
  80  * The "real" implementation of the function for accessible will be
  81  * provided in a support library
  82  */
  83
  84 gboolean   atk_action_do_action                (AtkAction         *action,
  85                                             gint              i);
  86 gint   atk_action_get_n_actions            (AtkAction *action);
  87 const gchar*          atk_action_get_description  (AtkAction         *action,
  88                                                    gint              i);
  89 const gchar*          atk_action_get_name         (AtkAction         *action,
  90                                                    gint              i);
  91 const gchar*          atk_action_get_keybinding   (AtkAction         *action,
  92                                                    gint              i);
  93 gboolean              atk_action_set_description  (AtkAction         *action,
  94                                                    gint              i,
  95                                                    const gchar       *desc);
  96
  97 /* NEW in ATK 1.1: */
  98
  99 const gchar* atk_action_get_localized_name (AtkAction       *action,
 100                                                      gint            i);
 101
 102 /*
 103  * Additional GObject properties exported by AtkAction:
 104  *    "accessible_action"
 105  *       (an accessible action, or the list of actions, has changed)
 106  */
 107
 108 G_END_DECLS
 109
 110 #endif /* __ATK_ACTION_H__ */