TTY: Prevent accidental escapes from string entries

On NAO, one of the major complaints was accidental escaping
from wishing prompt when using cursor keys.  The users were
trying to go "back" on the entry to fix a typo, but lost
the wish instead.

This prevents escaping out of a text prompt if there is any
text entered into the prompt; pressing escape clears the prompt.

diff --git a/win/tty/getline.c b/win/tty/getline.c
index 4a2d8c25131aacfea40f9db47fc38380510e2cee..1e4e6c43f30cf75c9fc816bd08ce7c9cb73c9e03 100644 (file)
--- a/win/tty/getline.c
+++ b/win/tty/getline.c
@@ -60,9 +60,19 @@ getlin_hook_proc hook;
                Strcat(strcat(strcpy(toplines, query), " "), obufp);
                c = pgetchar();
                if (c == '\033' || c == EOF) {
-                   obufp[0] = '\033';
-                   obufp[1] = '\0';
-                   break;
+                   if (c == '\033' && obufp[0] != '\0') {
+                       obufp[0] = '\0';
+                       bufp = obufp;
+                       tty_clear_nhwindow(WIN_MESSAGE);
+                       cw->maxcol = cw->maxrow;
+                       addtopl(query);
+                       addtopl(" ");
+                       addtopl(obufp);
+                   } else {
+                       obufp[0] = '\033';
+                       obufp[1] = '\0';
+                       break;
+                   }
                }
                if (ttyDisplay->intr) {
                    ttyDisplay->intr--;