xref: /openbsd-src/lib/libform/frm_hook.c (revision a28daedfc357b214be5c701aa8ba8adb29a7f1c2)
1 /*	$OpenBSD: frm_hook.c,v 1.6 2001/01/22 18:02:15 millert Exp $	*/
2 
3 /****************************************************************************
4  * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
5  *                                                                          *
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7  * copy of this software and associated documentation files (the            *
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11  * copies of the Software, and to permit persons to whom the Software is    *
12  * furnished to do so, subject to the following conditions:                 *
13  *                                                                          *
14  * The above copyright notice and this permission notice shall be included  *
15  * in all copies or substantial portions of the Software.                   *
16  *                                                                          *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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25  * Except as contained in this notice, the name(s) of the above copyright   *
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30 
31 /****************************************************************************
32  *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
33  ****************************************************************************/
34 
35 #include "form.priv.h"
36 
37 MODULE_ID("$From: frm_hook.c,v 1.9 2000/12/10 02:09:37 tom Exp $")
38 
39 /* "Template" macro to generate function to set application specific hook */
40 #define GEN_HOOK_SET_FUNCTION( typ, name ) \
41 NCURSES_IMPEXP int NCURSES_API set_ ## typ ## _ ## name (FORM *form, Form_Hook func)\
42 {\
43    (Normalize_Form( form ) -> typ ## name) = func ;\
44    RETURN(E_OK);\
45 }
46 
47 /* "Template" macro to generate function to get application specific hook */
48 #define GEN_HOOK_GET_FUNCTION( typ, name ) \
49 NCURSES_IMPEXP Form_Hook NCURSES_API typ ## _ ## name ( const FORM *form )\
50 {\
51    return ( Normalize_Form( form ) -> typ ## name );\
52 }
53 
54 /*---------------------------------------------------------------------------
55 |   Facility      :  libnform
56 |   Function      :  int set_field_init(FORM *form, Form_Hook f)
57 |
58 |   Description   :  Assigns an application defined initialization function
59 |                    to be called when the form is posted and just after
60 |                    the current field changes.
61 |
62 |   Return Values :  E_OK      - success
63 +--------------------------------------------------------------------------*/
64 GEN_HOOK_SET_FUNCTION(field,init)
65 
66 /*---------------------------------------------------------------------------
67 |   Facility      :  libnform
68 |   Function      :  Form_Hook field_init(const FORM *form)
69 |
70 |   Description   :  Retrieve field initialization routine address.
71 |
72 |   Return Values :  The address or NULL if no hook defined.
73 +--------------------------------------------------------------------------*/
74 GEN_HOOK_GET_FUNCTION(field,init)
75 
76 /*---------------------------------------------------------------------------
77 |   Facility      :  libnform
78 |   Function      :  int set_field_term(FORM *form, Form_Hook f)
79 |
80 |   Description   :  Assigns an application defined finalization function
81 |                    to be called when the form is unposted and just before
82 |                    the current field changes.
83 |
84 |   Return Values :  E_OK      - success
85 +--------------------------------------------------------------------------*/
86 GEN_HOOK_SET_FUNCTION(field,term)
87 
88 /*---------------------------------------------------------------------------
89 |   Facility      :  libnform
90 |   Function      :  Form_Hook field_term(const FORM *form)
91 |
92 |   Description   :  Retrieve field finalization routine address.
93 |
94 |   Return Values :  The address or NULL if no hook defined.
95 +--------------------------------------------------------------------------*/
96 GEN_HOOK_GET_FUNCTION(field,term)
97 
98 /*---------------------------------------------------------------------------
99 |   Facility      :  libnform
100 |   Function      :  int set_form_init(FORM *form, Form_Hook f)
101 |
102 |   Description   :  Assigns an application defined initialization function
103 |                    to be called when the form is posted and just after
104 |                    a page change.
105 |
106 |   Return Values :  E_OK       - success
107 +--------------------------------------------------------------------------*/
108 GEN_HOOK_SET_FUNCTION(form,init)
109 
110 /*---------------------------------------------------------------------------
111 |   Facility      :  libnform
112 |   Function      :  Form_Hook form_init(const FORM *form)
113 |
114 |   Description   :  Retrieve form initialization routine address.
115 |
116 |   Return Values :  The address or NULL if no hook defined.
117 +--------------------------------------------------------------------------*/
118 GEN_HOOK_GET_FUNCTION(form,init)
119 
120 /*---------------------------------------------------------------------------
121 |   Facility      :  libnform
122 |   Function      :  int set_form_term(FORM *form, Form_Hook f)
123 |
124 |   Description   :  Assigns an application defined finalization function
125 |                    to be called when the form is unposted and just before
126 |                    a page change.
127 |
128 |   Return Values :  E_OK       - success
129 +--------------------------------------------------------------------------*/
130 GEN_HOOK_SET_FUNCTION(form,term)
131 
132 /*---------------------------------------------------------------------------
133 |   Facility      :  libnform
134 |   Function      :  Form_Hook form_term(const FORM *form)
135 |
136 |   Description   :  Retrieve form finalization routine address.
137 |
138 |   Return Values :  The address or NULL if no hook defined.
139 +--------------------------------------------------------------------------*/
140 GEN_HOOK_GET_FUNCTION(form,term)
141 
142 /* frm_hook.c ends here */
143