patch 9.1.0563: Cannot process any Key event
Problem: Cannot process any Key event
Solution: Add the KeyInputPre autocmd
(Shougo Matsushita)
closes: #15182
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Co-authored-by: K.Takata <kentkt@csc.jp>
Signed-off-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/getchar.c b/src/getchar.c
index 1c544da..0a37b7b 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -96,6 +96,9 @@
static void updatescript(int c);
static int vgetorpeek(int);
static int inchar(char_u *buf, int maxlen, long wait_time);
+#ifdef FEAT_EVAL
+static int do_key_input_pre(int c);
+#endif
/*
* Free and clear a buffer.
@@ -2130,6 +2133,10 @@
}
#endif
+#ifdef FEAT_EVAL
+ c = do_key_input_pre(c);
+#endif
+
// Need to process the character before we know it's safe to do something
// else.
if (c != K_IGNORE)
@@ -2138,6 +2145,74 @@
return c;
}
+#ifdef FEAT_EVAL
+/*
+ * Handle the InsertCharPre autocommand.
+ * "c" is the character that was typed.
+ * Return new input character.
+ */
+ static int
+do_key_input_pre(int c)
+{
+ int res = c;
+ char_u buf[MB_MAXBYTES + 1];
+ char_u curr_mode[MODE_MAX_LENGTH];
+ int save_State = State;
+ save_v_event_T save_v_event;
+ dict_T *v_event;
+
+ // Return quickly when there is nothing to do.
+ if (!has_keyinputpre())
+ return res;
+
+ if (IS_SPECIAL(c))
+ {
+ buf[0] = K_SPECIAL;
+ buf[1] = KEY2TERMCAP0(c);
+ buf[2] = KEY2TERMCAP1(c);
+ buf[3] = NUL;
+ }
+ else
+ buf[(*mb_char2bytes)(c, buf)] = NUL;
+
+ get_mode(curr_mode);
+
+ // Lock the text to avoid weird things from happening.
+ ++textlock;
+ set_vim_var_string(VV_CHAR, buf, -1); // set v:char
+
+ v_event = get_v_event(&save_v_event);
+ (void)dict_add_bool(v_event, "typed", KeyTyped);
+
+ if (apply_autocmds(EVENT_KEYINPUTPRE, curr_mode, curr_mode, FALSE, curbuf)
+ && STRCMP(buf, get_vim_var_str(VV_CHAR)) != 0)
+ {
+ // Get the value of v:char. It may be empty or more than one
+ // character. Only use it when changed, otherwise continue with the
+ // original character.
+ char_u *v_char;
+
+ v_char = get_vim_var_str(VV_CHAR);
+
+ // Convert special bytes when it is special string.
+ if (STRLEN(v_char) >= 3 && v_char[0] == K_SPECIAL)
+ res = TERMCAP2KEY(v_char[1], v_char[2]);
+ else if (STRLEN(v_char) > 0)
+ res = PTR2CHAR(v_char);
+ }
+
+ restore_v_event(v_event, &save_v_event);
+
+ set_vim_var_string(VV_CHAR, NULL, -1); // clear v:char
+ --textlock;
+
+ // Restore the State, it may have been changed.
+ State = save_State;
+
+ return res;
+}
+#endif
+
/*
* Like vgetc(), but never return a NUL when called recursively, get a key
* directly from the user (ignoring typeahead).