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authorBill Haneman <billh@src.gnome.org>2001-04-26 14:23:41 +0000
committerBill Haneman <billh@src.gnome.org>2001-04-26 14:23:41 +0000
commitdba66b4bec94a908cd35a5537209db255fa5fa33 (patch)
tree3c6361db3558e2e2c70e9c802193974f45d24bf0 /atk/atkaction.h
downloadatk-dba66b4bec94a908cd35a5537209db255fa5fa33.tar.gz
Initial revision
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+/* ATK - Accessibility Toolkit
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * 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 __ATK_ACTION_H__
+#define __ATK_ACTION_H__
+
+#include <atk/atkobject.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/*
+ * The interface AtkAction should be supported by any object that can
+ * perform one or more actions. The interface provides the standard
+ * mechanism for an assitive technology to determine what those actions
+ * are as well as tell the object to perform them. Any object that can
+ * be manipulated should support this interface.
+ */
+
+
+#define ATK_TYPE_ACTION (atk_action_get_type ())
+#define ATK_IS_ACTION(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_ACTION)
+#define ATK_ACTION(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_ACTION, AtkAction)
+#define ATK_ACTION_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_ACTION, AtkActionIface))
+
+#ifndef _TYPEDEF_ATK_ACTION_
+#define _TYPEDEF_ATK_ACTION_
+typedef struct _AtkAction AtkAction;
+#endif
+
+struct _AtkActionIface
+{
+ GTypeInterface parent;
+
+ /*
+ * Perform the specified action on the object
+ */
+ gboolean (*do_action) (AtkAction *action,
+ gint i);
+ /*
+ * Returns the number of accessible actions available on the object.
+ * If there are more than one, the first one is considered the
+ * "default" action of the object.
+ */
+ gint (*get_n_actions) (AtkAction *action);
+ /*
+ * Returns a description of the specified action of the object
+ */
+ G_CONST_RETURN gchar* (*get_description) (AtkAction *action,
+ gint i);
+ /*
+ * Returns a keybinding associated with this action, if one exists.
+ */
+ G_CONST_RETURN gchar* (*get_keybinding) (AtkAction *action,
+ gint i);
+
+};
+GType atk_action_get_type ();
+
+/*
+ * These are the function which would be called by an application with
+ * the argument being a AtkObject object cast to (AtkAction).
+ *
+ * The function will just check that * the corresponding
+ * function pointer is not NULL and will call it.
+ *
+ * The "real" implementation of the function for accessible will be
+ * provided in a support library
+ */
+
+void atk_action_do_action (AtkAction *action,
+ gint i);
+gint atk_action_get_n_actions (AtkAction *action);
+G_CONST_RETURN gchar* atk_action_get_description (AtkAction *action,
+ gint i);
+
+
+/*
+ * Additional GObject properties exported by AtkAction:
+ * "accessible_action"
+ * (an accessible action, or the list of actions, has changed)
+ */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#endif /* __ATK_ACTION_H__ */