1 /****************************************************************************
2 * Copyright (c) 1998 Free Software Foundation, Inc. *
3 * *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
11 * *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
14 * *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
22 * *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
26 * authorization. *
27 ****************************************************************************/
28
29 /****************************************************************************
30 * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
31 ****************************************************************************/
32 #include "form.priv.h"
33
34 MODULE_ID("$Id$")
35
36 /*---------------------------------------------------------------------------
37 | Facility : libnform
38 | Function : int set_current_field(FORM * form,FIELD * field)
39 |
40 | Description : Set the current field of the form to the specified one.
41 |
42 | Return Values : E_OK - success
43 | E_BAD_ARGUMENT - invalid form or field pointer
44 | E_REQUEST_DENIED - field not selectable
45 | E_BAD_STATE - called from a hook routine
46 | E_INVALID_FIELD - current field can't be left
47 | E_SYSTEM_ERROR - system error
48 +--------------------------------------------------------------------------*/
set_current_field(FORM * form,FIELD * field)49 int set_current_field(FORM * form, FIELD * field)
50 {
51 int err = E_OK;
52
53 if ( !form || !field )
54 RETURN(E_BAD_ARGUMENT);
55
56 if ( (form != field->form) || Field_Is_Not_Selectable(field) )
57 RETURN(E_REQUEST_DENIED);
58
59 if (!(form->status & _POSTED))
60 {
61 form->current = field;
62 form->curpage = field->page;
63 }
64 else
65 {
66 if (form->status & _IN_DRIVER)
67 err = E_BAD_STATE;
68 else
69 {
70 if (form->current != field)
71 {
72 if (!_nc_Internal_Validation(form))
73 err = E_INVALID_FIELD;
74 else
75 {
76 Call_Hook(form,fieldterm);
77 if (field->page != form->curpage)
78 {
79 Call_Hook(form,formterm);
80 err = _nc_Set_Form_Page(form,field->page,field);
81 Call_Hook(form,forminit);
82 }
83 else
84 {
85 err = _nc_Set_Current_Field(form,field);
86 }
87 Call_Hook(form,fieldinit);
88 _nc_Refresh_Current_Field(form);
89 }
90 }
91 }
92 }
93 RETURN(err);
94 }
95
96 /*---------------------------------------------------------------------------
97 | Facility : libnform
98 | Function : FIELD *current_field(const FORM * form)
99 |
100 | Description : Return the current field.
101 |
102 | Return Values : Pointer to the current field.
103 +--------------------------------------------------------------------------*/
current_field(const FORM * form)104 FIELD *current_field(const FORM * form)
105 {
106 return Normalize_Form(form)->current;
107 }
108
109 /*---------------------------------------------------------------------------
110 | Facility : libnform
111 | Function : int field_index(const FIELD * field)
112 |
113 | Description : Return the index of the field in the field-array of
114 | the form.
115 |
116 | Return Values : >= 0 : field index
117 | -1 : fieldpointer invalid or field not connected
118 +--------------------------------------------------------------------------*/
field_index(const FIELD * field)119 int field_index(const FIELD * field)
120 {
121 return ( (field && field->form) ? field->index : -1 );
122 }
123
124 /* fld_current.c ends here */
125