abook_rl.c

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