gnucash/libgnucash/engine/gnc-hooks.h
Geert Janssens b1ba16c33b gnc-hooks - factor out scm calls into a separate source file
This required the addition of an extra parameter to gnc_hook_add_dangler
to allow the scm hooks to unprotect the scm data on hook destruction.
2019-12-06 19:59:11 +01:00

77 lines
2.4 KiB
C

/*
* gnc-hooks.h -- helpers for using Glib hook functions
* Copyright (C) 2005 David Hampton <hampton@employees.org>
* Derek Atkins <derek@ihtfp.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, contact:
*
* Free Software Foundation Voice: +1-617-542-5942
* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652
* Boston, MA 02110-1301, USA gnu@gnu.org
*
*/
#ifndef GNC_HOOKS_H
#define GNC_HOOKS_H
/**
* Create a new hook. Not a common occurrence, but...
* The returned string is just the 'name' argument,
* which belongs to the caller.
*/
gchar * gnc_hook_create(const gchar *name, gint num_args, const gchar *desc);
/**
* add and remove C-style dangers from a hook. The callback is called
* function(hook_run_data, cb_data)
*/
void gnc_hook_add_dangler(const gchar *name, GFunc callback,
GDestroyNotify destroy, gpointer cb_data);
void gnc_hook_remove_dangler(const gchar *name, GFunc callback);
/**
* helper function to retrieve the number of arguments
* a hook expects
*/
int gnc_hook_num_args (const gchar *name);
/**
* Run the hook danglers.
*/
void gnc_hook_run(const gchar *name, gpointer data);
/**
* Initialize the known hooks
*/
void gnc_hooks_init(void);
/* Common hook names */
#define HOOK_STARTUP "hook_startup"
#define HOOK_SHUTDOWN "hook_shutdown"
#define HOOK_UI_STARTUP "hook_ui_startup"
#define HOOK_UI_POST_STARTUP "hook_ui_post_startup"
#define HOOK_UI_SHUTDOWN "hook_ui_shutdown"
#define HOOK_NEW_BOOK "hook_new_book"
#define HOOK_REPORT "hook_report"
#define HOOK_CURRENCY_CHANGED "hook_currency_changed"
#define HOOK_SAVE_OPTIONS "hook_save_options"
#define HOOK_ADD_EXTENSION "hook_add_extension"
/* Common session hook names */
#define HOOK_BOOK_OPENED "hook_book_opened"
#define HOOK_BOOK_CLOSED "hook_book_closed"
#define HOOK_BOOK_SAVED "hook_book_saved"
#endif /* GNC_HOOKS_H */