payloads/libpayload/curses/menu/m_hook.c

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  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 /***************************************************************************
  34 * Module m_hook                                                            *
  35 * Assign application specific routines for automatic invocation by menus   *
  36 ***************************************************************************/
  37
  38 #include "menu.priv.h"
  39
  40 MODULE_ID("$Id: m_hook.c,v 1.15 2010/01/23 21:16:54 tom Exp $")
  41
  42 /* "Template" macro to generate function to set application specific hook */
  43 #define GEN_HOOK_SET_FUNCTION( typ, name ) \
  44 NCURSES_IMPEXP int NCURSES_API set_ ## typ ## _ ## name (MENU *menu, Menu_Hook func )\
  45 {\
  46    T((T_CALLED("set_" #typ "_" #name "(%p,%p)"), menu, func));\
  47    (Normalize_Menu(menu) -> typ ## name = func );\
  48    RETURN(E_OK);\
  49 }
  50
  51 /* "Template" macro to generate function to get application specific hook */
  52 #define GEN_HOOK_GET_FUNCTION( typ, name ) \
  53 NCURSES_IMPEXP Menu_Hook NCURSES_API typ ## _ ## name ( const MENU *menu )\
  54 {\
  55    T((T_CALLED(#typ "_" #name "(%p)"), (const void *) menu));\
  56    returnMenuHook(Normalize_Menu(menu) -> typ ## name);\
  57 }
  58
  59 /*---------------------------------------------------------------------------
  60 |   Facility      :  libnmenu
  61 |   Function      :  int set_menu_init(MENU *menu, void (*f)(MENU *))
  62 |
  63 |   Description   :  Set user-exit which is called when menu is posted
  64 |                    or just after the top row changes.
  65 |
  66 |   Return Values :  E_OK               - success
  67 +--------------------------------------------------------------------------*/
  68 GEN_HOOK_SET_FUNCTION(menu, init)
  69
  70 /*---------------------------------------------------------------------------
  71 |   Facility      :  libnmenu
  72 |   Function      :  void (*)(MENU *) menu_init(const MENU *menu)
  73 |
  74 |   Description   :  Return address of user-exit function which is called
  75 |                    when a menu is posted or just after the top row
  76 |                    changes.
  77 |
  78 |   Return Values :  Menu init function address or NULL
  79 +--------------------------------------------------------------------------*/
  80 GEN_HOOK_GET_FUNCTION(menu, init)
  81
  82 /*---------------------------------------------------------------------------
  83 |   Facility      :  libnmenu
  84 |   Function      :  int set_menu_term (MENU *menu, void (*f)(MENU *))
  85 |
  86 |   Description   :  Set user-exit which is called when menu is unposted
  87 |                    or just before the top row changes.
  88 |
  89 |   Return Values :  E_OK               - success
  90 +--------------------------------------------------------------------------*/
  91 GEN_HOOK_SET_FUNCTION(menu, term)
  92
  93 /*---------------------------------------------------------------------------
  94 |   Facility      :  libnmenu
  95 |   Function      :  void (*)(MENU *) menu_term(const MENU *menu)
  96 |
  97 |   Description   :  Return address of user-exit function which is called
  98 |                    when a menu is unposted or just before the top row
  99 |                    changes.
 100 |
 101 |   Return Values :  Menu finalization function address or NULL
 102 +--------------------------------------------------------------------------*/
 103 GEN_HOOK_GET_FUNCTION(menu, term)
 104
 105 /*---------------------------------------------------------------------------
 106 |   Facility      :  libnmenu
 107 |   Function      :  int set_item_init (MENU *menu, void (*f)(MENU *))
 108 |
 109 |   Description   :  Set user-exit which is called when menu is posted
 110 |                    or just after the current item changes.
 111 |
 112 |   Return Values :  E_OK               - success
 113 +--------------------------------------------------------------------------*/
 114 GEN_HOOK_SET_FUNCTION(item, init)
 115
 116 /*---------------------------------------------------------------------------
 117 |   Facility      :  libnmenu
 118 |   Function      :  void (*)(MENU *) item_init (const MENU *menu)
 119 |
 120 |   Description   :  Return address of user-exit function which is called
 121 |                    when a menu is posted or just after the current item
 122 |                    changes.
 123 |
 124 |   Return Values :  Item init function address or NULL
 125 +--------------------------------------------------------------------------*/
 126 GEN_HOOK_GET_FUNCTION(item, init)
 127
 128 /*---------------------------------------------------------------------------
 129 |   Facility      :  libnmenu
 130 |   Function      :  int set_item_term (MENU *menu, void (*f)(MENU *))
 131 |
 132 |   Description   :  Set user-exit which is called when menu is unposted
 133 |                    or just before the current item changes.
 134 |
 135 |   Return Values :  E_OK               - success
 136 +--------------------------------------------------------------------------*/
 137 GEN_HOOK_SET_FUNCTION(item, term)
 138
 139 /*---------------------------------------------------------------------------
 140 |   Facility      :  libnmenu
 141 |   Function      :  void (*)(MENU *) item_init (const MENU *menu)
 142 |
 143 |   Description   :  Return address of user-exit function which is called
 144 |                    when a menu is unposted or just before the current item
 145 |                    changes.
 146 |
 147 |   Return Values :  Item finalization function address or NULL
 148 +--------------------------------------------------------------------------*/
 149 GEN_HOOK_GET_FUNCTION(item, term)
 150
 151 /* m_hook.c ends here */