abook_rl.c

   1 /*
   2  * $Id$
   3  *
   4  * by JH <jheinonen@users.sourceforge.net>
   5  *
   6  * Copyright (C) Jaakko Heinonen
   7  */
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <sys/types.h>
  12 #include "abook.h"
  13 #include "abook_rl.h"
  14
  15 #ifdef HAVE_CONFIG_H
  16 #       include "config.h"
  17 #endif
  18
  19 #if defined(HAVE_READLINE_READLINE_H)
  20 #       include <readline/readline.h>
  21 #elif defined(HAVE_READLINE_H)
  22 #       include <readline.h>
  23 #endif
  24
  25 #if defined(HAVE_READLINE_HISTORY_H)
  26 #       include <readline/history.h>
  27 #elif defined(HAVE_HISTORY_H)
  28 #       include <history.h>
  29 #endif
  30
  31 #define RL_READLINE_NAME        "Abook"
  32
  33 static int rl_x, rl_y;
  34 static WINDOW *rl_win;
  35
  36 static void
  37 rl_refresh()
  38 {
  39         /*refresh();*/
  40         wrefresh(rl_win);
  41 }
  42
  43 static void
  44 rline_update()
  45 {
  46         int real_point = rl_point + rl_x;
  47
  48         if(real_point > (COLS - 1))
  49                 mvwaddnstr(rl_win, rl_y, rl_x,
  50                         rl_line_buffer + (1 + real_point - COLS),
  51                         COLS - rl_x - 1);
  52         else
  53                 mvwaddnstr(rl_win, rl_y, rl_x, rl_line_buffer, rl_end);
  54
  55         wclrtoeol(rl_win);
  56         wmove(rl_win, rl_y, min(real_point, COLS - 1));
  57
  58         rl_refresh();
  59 }
  60
  61 void
  62 rline_compdisp(char **matches, int n, int max_len)
  63 {
  64         /*
  65          * dummy
  66          */
  67 }
  68
  69 static void
  70 abook_rl_init(int use_completion)
  71 {
  72         rl_readline_name = RL_READLINE_NAME;
  73
  74         rl_already_prompted = 1;
  75
  76         rl_redisplay_function = rline_update;
  77         rl_completion_display_matches_hook = rline_compdisp;
  78
  79         rl_unbind_function_in_map(rl_clear_screen, rl_get_keymap());
  80
  81         if(use_completion)
  82                 rl_bind_key('\t', rl_menu_complete);
  83         else {
  84                 rl_unbind_function_in_map(rl_complete, rl_get_keymap());
  85                 rl_unbind_function_in_map(rl_menu_complete, rl_get_keymap());
  86         }
  87
  88         clear_history();
  89 }
  90
  91 char *
  92 abook_readline(WINDOW *w, int y, int x, char *s, int limit, int use_completion)
  93 {
  94         char *ret = NULL;
  95
  96         rl_win = w;
  97         abook_rl_init(use_completion);
  98
  99         wmove(rl_win, rl_y = y, rl_x = x);
 100         rl_refresh();
 101
 102         if(s && *s)
 103                 add_history(s);
 104
 105         ret = readline(NULL);
 106
 107         return ret;
 108 }
 109