multibyte update

[pkg/abook.git] / abook_rl.c

diff --git a/abook_rl.c b/abook_rl.c
index fe070700899b42f943fc7d3ccba74d673be68e67..00410f49a3485e9dfca6fe3559bf970ef56ba168 100644 (file)
--- a/abook_rl.c
+++ b/abook_rl.c
@@ -12,6 +12,9 @@
 #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
@@ -28,11 +31,18 @@
 #       include <history.h>
 #endif
 
+#ifdef HANDLE_MULTIBYTE
+#      include <wchar.h>
+#      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()
 {
@@ -40,10 +50,22 @@ rl_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,
@@ -58,51 +80,82 @@ rline_update()
        rl_refresh();
 }
 
-void
+static void
 rline_compdisp(char **matches, int n, int max_len)
 {
-       /*
-        * dummy
-        */
+       /* dummy */
+}
+
+static int
+rl_cancel(int dummy1, int dummy2)
+{
+       rl_cancelled = TRUE;
+
+       rl_done = 1;
+
+       return 0;
 }
 
 static void
-abook_rl_init(int use_completion)
+abook_rl_init(bool use_completion)
 {
        rl_readline_name = RL_READLINE_NAME;
        
        rl_already_prompted = 1;
+       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());
 
-       if(use_completion)
+       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 {
+       } 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, int use_completion)
+abook_readline(WINDOW *w, int y, int x, char *s, int limit, bool use_completion)
 {
-       char *ret = NULL;
+       char *ret;
 
-       rl_win = w;
        abook_rl_init(use_completion);
 
-       wmove(rl_win, rl_y = y, rl_x = x);
+       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;
 }