1 /****************************************************************************
2 * Copyright (c) 1998-2002,2003 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, 1995,1997 *
31 ****************************************************************************/
33 #include "form.priv.h"
35 MODULE_ID("$Id: fld_current.c,v 1.7 2003/10/25 15:17:08 tom Exp $")
37 /*---------------------------------------------------------------------------
39 | Function : int set_current_field(FORM * form,FIELD * field)
41 | Description : Set the current field of the form to the specified one.
43 | Return Values : E_OK - success
44 | E_BAD_ARGUMENT - invalid form or field pointer
45 | E_REQUEST_DENIED - field not selectable
46 | E_BAD_STATE - called from a hook routine
47 | E_INVALID_FIELD - current field can't be left
48 | E_SYSTEM_ERROR - system error
49 +--------------------------------------------------------------------------*/
51 set_current_field (FORM
* form
, FIELD
* field
)
55 if ( !form
|| !field
)
56 RETURN(E_BAD_ARGUMENT
);
58 if ( (form
!= field
->form
) || Field_Is_Not_Selectable(field
) )
59 RETURN(E_REQUEST_DENIED
);
61 if (!(form
->status
& _POSTED
))
63 form
->current
= field
;
64 form
->curpage
= field
->page
;
68 if (form
->status
& _IN_DRIVER
)
72 if (form
->current
!= field
)
74 if (!_nc_Internal_Validation(form
))
75 err
= E_INVALID_FIELD
;
78 Call_Hook(form
,fieldterm
);
79 if (field
->page
!= form
->curpage
)
81 Call_Hook(form
,formterm
);
82 err
= _nc_Set_Form_Page(form
,field
->page
,field
);
83 Call_Hook(form
,forminit
);
87 err
= _nc_Set_Current_Field(form
,field
);
89 Call_Hook(form
,fieldinit
);
90 _nc_Refresh_Current_Field(form
);
98 /*---------------------------------------------------------------------------
100 | Function : FIELD *current_field(const FORM * form)
102 | Description : Return the current field.
104 | Return Values : Pointer to the current field.
105 +--------------------------------------------------------------------------*/
106 NCURSES_EXPORT(FIELD
*)
107 current_field (const FORM
* form
)
109 return Normalize_Form(form
)->current
;
112 /*---------------------------------------------------------------------------
113 | Facility : libnform
114 | Function : int field_index(const FIELD * field)
116 | Description : Return the index of the field in the field-array of
119 | Return Values : >= 0 : field index
120 | -1 : fieldpointer invalid or field not connected
121 +--------------------------------------------------------------------------*/
123 field_index (const FIELD
* field
)
125 return ( (field
&& field
->form
) ? field
->index
: -1 );
128 /* fld_current.c ends here */