1 /* $OpenBSD: fld_current.c,v 1.2 1998/07/24 02:36:36 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 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. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> 1995,1997 * 33 ****************************************************************************/ 34 #include "form.priv.h" 35 36 MODULE_ID("$From: fld_current.c,v 1.2 1998/02/11 12:13:44 tom Exp $") 37 38 /*--------------------------------------------------------------------------- 39 | Facility : libnform 40 | Function : int set_current_field(FORM * form,FIELD * field) 41 | 42 | Description : Set the current field of the form to the specified one. 43 | 44 | Return Values : E_OK - success 45 | E_BAD_ARGUMENT - invalid form or field pointer 46 | E_REQUEST_DENIED - field not selectable 47 | E_BAD_STATE - called from a hook routine 48 | E_INVALID_FIELD - current field can't be left 49 | E_SYSTEM_ERROR - system error 50 +--------------------------------------------------------------------------*/ 51 int set_current_field(FORM * form, FIELD * field) 52 { 53 int err = E_OK; 54 55 if ( !form || !field ) 56 RETURN(E_BAD_ARGUMENT); 57 58 if ( (form != field->form) || Field_Is_Not_Selectable(field) ) 59 RETURN(E_REQUEST_DENIED); 60 61 if (!(form->status & _POSTED)) 62 { 63 form->current = field; 64 form->curpage = field->page; 65 } 66 else 67 { 68 if (form->status & _IN_DRIVER) 69 err = E_BAD_STATE; 70 else 71 { 72 if (form->current != field) 73 { 74 if (!_nc_Internal_Validation(form)) 75 err = E_INVALID_FIELD; 76 else 77 { 78 Call_Hook(form,fieldterm); 79 if (field->page != form->curpage) 80 { 81 Call_Hook(form,formterm); 82 err = _nc_Set_Form_Page(form,field->page,field); 83 Call_Hook(form,forminit); 84 } 85 else 86 { 87 err = _nc_Set_Current_Field(form,field); 88 } 89 Call_Hook(form,fieldinit); 90 _nc_Refresh_Current_Field(form); 91 } 92 } 93 } 94 } 95 RETURN(err); 96 } 97 98 /*--------------------------------------------------------------------------- 99 | Facility : libnform 100 | Function : FIELD *current_field(const FORM * form) 101 | 102 | Description : Return the current field. 103 | 104 | Return Values : Pointer to the current field. 105 +--------------------------------------------------------------------------*/ 106 FIELD *current_field(const FORM * form) 107 { 108 return Normalize_Form(form)->current; 109 } 110 111 /*--------------------------------------------------------------------------- 112 | Facility : libnform 113 | Function : int field_index(const FIELD * field) 114 | 115 | Description : Return the index of the field in the field-array of 116 | the form. 117 | 118 | Return Values : >= 0 : field index 119 | -1 : fieldpointer invalid or field not connected 120 +--------------------------------------------------------------------------*/ 121 int field_index(const FIELD * field) 122 { 123 return ( (field && field->form) ? field->index : -1 ); 124 } 125 126 /* fld_current.c ends here */ 127