1 /****************************************************************************
2 * Copyright (c) 1998 Free Software Foundation, Inc. *
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: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
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. *
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 *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
31 ****************************************************************************/
32 #include "form.priv.h"
34 MODULE_ID("$Id: fld_current.c,v 1.4 1999/05/16 17:16:46 juergen Exp $")
36 /*---------------------------------------------------------------------------
38 | Function : int set_current_field(FORM * form,FIELD * field)
40 | Description : Set the current field of the form to the specified one.
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 +--------------------------------------------------------------------------*/
49 int set_current_field(FORM * form, FIELD * field)
53 if ( !form || !field )
54 RETURN(E_BAD_ARGUMENT);
56 if ( (form != field->form) || Field_Is_Not_Selectable(field) )
57 RETURN(E_REQUEST_DENIED);
59 if (!(form->status & _POSTED))
61 form->current = field;
62 form->curpage = field->page;
66 if (form->status & _IN_DRIVER)
70 if (form->current != field)
72 if (!_nc_Internal_Validation(form))
73 err = E_INVALID_FIELD;
76 Call_Hook(form,fieldterm);
77 if (field->page != form->curpage)
79 Call_Hook(form,formterm);
80 err = _nc_Set_Form_Page(form,field->page,field);
81 Call_Hook(form,forminit);
85 err = _nc_Set_Current_Field(form,field);
87 Call_Hook(form,fieldinit);
88 _nc_Refresh_Current_Field(form);
96 /*---------------------------------------------------------------------------
98 | Function : FIELD *current_field(const FORM * form)
100 | Description : Return the current field.
102 | Return Values : Pointer to the current field.
103 +--------------------------------------------------------------------------*/
104 FIELD *current_field(const FORM * form)
106 return Normalize_Form(form)->current;
109 /*---------------------------------------------------------------------------
110 | Facility : libnform
111 | Function : int field_index(const FIELD * field)
113 | Description : Return the index of the field in the field-array of
116 | Return Values : >= 0 : field index
117 | -1 : fieldpointer invalid or field not connected
118 +--------------------------------------------------------------------------*/
119 int field_index(const FIELD * field)
121 return ( (field && field->form) ? field->index : -1 );
124 /* fld_current.c ends here */