Imported Upstream version 0.5.3

[pkg/abook.git] / abook_rl.c

diff --git a/abook_rl.c b/abook_rl.c
new file mode 100644 (file)
index 0000000..b450d94
--- /dev/null
+++ b/abook_rl.c
@@ -0,0 +1,163 @@
+/*
+ * $Id: abook_rl.c,v 1.11 2004/02/18 19:41:37 jheinonen Exp $
+ *
+ * by JH <jheinonen@users.sourceforge.net>
+ *
+ * Copyright (C) Jaakko Heinonen
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include "abook.h"
+#include "abook_rl.h"
+
+#define KEYPAD_HACK 1 /* enable keypad hack */
+#define CBREAK_HACK 1 /* enable cbreak hack */
+
+#ifdef HAVE_CONFIG_H
+#      include "config.h"
+#endif
+
+#if defined(HAVE_READLINE_READLINE_H)
+#       include <readline/readline.h>
+#elif defined(HAVE_READLINE_H)
+#       include <readline.h>
+#endif
+
+#if defined(HAVE_READLINE_HISTORY_H)
+#       include <readline/history.h>
+#elif defined(HAVE_HISTORY_H)
+#       include <history.h>
+#endif
+
+#ifdef HANDLE_MULTIBYTE
+#      include <mbswidth.h>
+#endif
+
+#define RL_READLINE_NAME       "Abook"
+
+static int rl_x, rl_y;
+static WINDOW *rl_win;
+
+static bool rl_cancelled;
+
+static void
+rl_refresh()
+{
+       /*refresh();*/
+       wrefresh(rl_win);
+}
+
+#ifdef HANDLE_MULTIBYTE
+static int
+rline_calc_point()
+{
+       return (int)mbsnwidth(rl_line_buffer, rl_point, 0);
+}
+#endif
+
+static void
+rline_update()
+{      
+#ifdef HANDLE_MULTIBYTE
+       int real_point = rline_calc_point() + rl_x;
+#else
+       int real_point = rl_point + rl_x;
+#endif
+       
+       if(real_point > (COLS - 1))
+               mvwaddnstr(rl_win, rl_y, rl_x,
+                       rl_line_buffer + (1 + real_point - COLS),
+                       COLS - rl_x - 1);
+       else
+               mvwaddnstr(rl_win, rl_y, rl_x, rl_line_buffer, rl_end);
+
+       wclrtoeol(rl_win);
+       wmove(rl_win, rl_y, min(real_point, COLS - 1));
+
+       rl_refresh();
+}
+
+static void
+rline_compdisp(char **matches, int n, int max_len)
+{
+       /* dummy */
+}
+
+static int
+rl_cancel(int dummy1, int dummy2)
+{
+       rl_cancelled = TRUE;
+
+       rl_done = 1;
+
+       return 0;
+}
+
+static void
+abook_rl_init(bool use_completion)
+{
+       rl_readline_name = RL_READLINE_NAME;
+       
+#if RL_VERSION_MAJOR >= 4
+       rl_already_prompted = 1;
+#endif
+       rl_catch_sigwinch = 0;
+       
+       rl_redisplay_function = rline_update;
+       rl_completion_display_matches_hook = rline_compdisp;
+
+       rl_unbind_function_in_map(rl_clear_screen, rl_get_keymap());
+       rl_unbind_function_in_map(rl_reverse_search_history, rl_get_keymap());
+       rl_unbind_function_in_map(rl_re_read_init_file, rl_get_keymap());
+       
+       if(use_completion) {
+               rl_bind_key('\t', rl_menu_complete);
+       } else {
+               rl_unbind_function_in_map(rl_complete, rl_get_keymap());
+               rl_unbind_function_in_map(rl_menu_complete, rl_get_keymap());
+       }
+
+       rl_bind_key('g' & 31, rl_cancel); /* C-g */
+
+       clear_history();
+
+       rl_cancelled = FALSE;
+}      
+
+char *
+abook_readline(WINDOW *w, int y, int x, char *s, int limit, bool use_completion)
+{
+       char *ret;
+
+       abook_rl_init(use_completion);
+
+       wmove(rl_win = w, rl_y = y, rl_x = x);
+       rl_refresh();
+
+       if(s && *s)
+               add_history(s);
+       
+#ifdef KEYPAD_HACK
+       keypad(w, FALSE);
+#endif
+#ifdef CBREAK_HACK
+       nocbreak();
+#endif
+       ret = readline(NULL);
+#ifdef CBREAK_HACK
+       cbreak();
+#endif
+#ifdef KEYPAD_HACK
+       keypad(w, TRUE);
+#endif
+
+       if(rl_cancelled && ret) {
+               free(ret);
+               ret = NULL;
+       }
+
+       return ret;
+}
+