Completely rip-out and redesign sysinstall's refresh model as well

as redoing all the menus to have proper, or at least non-hallucinogenic,
keyboard accelerators.

This requires my recent update to libdialog to work properly and will
probably also exhibit some other "interesting" behavior while the last
few missing screen clears are found (which is why I'm not going to MFC
immediately).  At least now, however, sysinstall does not gratuitously
redraw random screens at the drop of a hat and drive serial console
installers out of their minds.

1 files changed, 6 insertions, 1 deletions

diff --git a/usr.sbin/sade/system.c b/usr.sbin/sade/system.c
index 0353fc6..c03d211 100644
--- a/usr.sbin/sade/system.c
+++ b/usr.sbin/sade/system.c
@@ -191,7 +191,9 @@ systemExecute(char *command)
 {
     int status;
     struct termios foo;
+    WINDOW *w = savescr();
 
+    dialog_clear();
     dialog_update();
     end_dialog();
     DialogActive = FALSE;
@@ -206,6 +208,7 @@ systemExecute(char *command)
 	msgDebug("systemExecute:  Faked execution of `%s'\n", command);
     }
     DialogActive = TRUE;
+    restorescr(w);
     return status;
 }
 
@@ -216,7 +219,8 @@ systemDisplayHelp(char *file)
     char *fname = NULL;
     char buf[FILENAME_MAX];
     int ret = 0;
-
+    WINDOW *w = savescr();
+    
     fname = systemHelpFile(file, buf);
     if (!fname) {
 	snprintf(buf, FILENAME_MAX, "The %s file is not provided on this particular floppy image.", file);
@@ -230,6 +234,7 @@ systemDisplayHelp(char *file)
 	use_helpline(NULL);
 	dialog_textbox(file, fname, LINES, COLS);
     }
+    restorescr(w);
     return ret;
 }