http://ftp.ksu.edu.tw/FTP/FreeBSD/distfiles/xscreensaver-4.23.tar.gz

[xscreensaver] / driver / xscreensaver.c

diff --git a/driver/xscreensaver.c b/driver/xscreensaver.c
index ab39b84e62341db668725061a05b382b7e0bc23c..cb41a4942f4351d059971b4562cf6b1871f3df15 100644 (file)
--- a/driver/xscreensaver.c
+++ b/driver/xscreensaver.c
@@ -1,4 +1,4 @@
-/* xscreensaver, Copyright (c) 1991-2003 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1991-2005 Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -255,7 +255,7 @@ do_help (saver_info *si)
   fflush (stdout);
   fflush (stderr);
   fprintf (stdout, "\
-xscreensaver %s, copyright (c) 1991-2004 by Jamie Zawinski <jwz@jwz.org>\n\
+xscreensaver %s, copyright (c) 1991-2005 by Jamie Zawinski <jwz@jwz.org>\n\
 \n\
   All xscreensaver configuration is via the `~/.xscreensaver' file.\n\
   Rather than editing that file by hand, just run `xscreensaver-demo':\n\
@@ -719,7 +719,7 @@ print_banner (saver_info *si)
 
   if (p->verbose_p)
     fprintf (stderr,
-            "%s %s, copyright (c) 1991-2004 "
+            "%s %s, copyright (c) 1991-2005 "
             "by Jamie Zawinski <jwz@jwz.org>.\n",
             progname, si->version);
 
@@ -904,6 +904,8 @@ initialize_per_screen_info (saver_info *si, Widget toplevel_shell)
 
       ssi->number = i;
       ssi->screen = ScreenOfDisplay (si->dpy, ssi->real_screen_number);
+      ssi->poll_mouse_last_root_x = -1;
+      ssi->poll_mouse_last_root_y = -1;
 
       if (!si->xinerama_p)
         {
@@ -1190,8 +1192,13 @@ main_loop (saver_info *si)
           /* Go around the loop and wait for the next bout of idleness,
              or for the init file to change, or for a remote command to
              come in, or something.
+
+             But, if locked_p is true, go ahead.  This can only happen
+             if we're in "disabled" mode but a "lock" clientmessage came
+             in: in that case, we should go ahead and blank/lock the screen.
            */
-          continue;
+          if (!si->locked_p)
+            continue;
         }
 
       /* Since we're about to blank the screen, kill the de-race timer,
@@ -1591,10 +1598,12 @@ clientmessage_response (saver_info *si, Window w, Bool error,
 static void
 bogus_clientmessage_warning (saver_info *si, XEvent *event)
 {
+  saver_preferences *p = &si->prefs;
   char *str = XGetAtomName_safe (si->dpy, event->xclient.message_type);
   Window w = event->xclient.window;
   char wdesc[255];
   int screen = 0;
+  Bool root_p = False;
 
   *wdesc = 0;
   for (screen = 0; screen < si->nscreens; screen++)
@@ -1606,9 +1615,19 @@ bogus_clientmessage_warning (saver_info *si, XEvent *event)
     else if (w == RootWindow (si->dpy, screen))
       {
         strcpy (wdesc, "root");
+        root_p = True;
         break;
       }
 
+  /* If this ClientMessage was sent to the real root window instead of to the
+     xscreensaver window, then it might be intended for someone else who is
+     listening on the root window (e.g., the window manager).  So only print
+     the warning if: we are in debug mode; or if the bogus message was
+     actually sent to one of the xscreensaver-created windows.
+   */
+  if (root_p && !p->debug_p)
+    return;
+
   if (!*wdesc)
     {
       XErrorHandler old_handler;
@@ -1902,11 +1921,7 @@ handle_clientmessage (saver_info *si, XEvent *event, Bool until_idle_p)
                              "not compiled with support for locking.",
                              "locking not enabled.");
 #else /* !NO_LOCKING */
-      if (p->mode == DONT_BLANK)
-        clientmessage_response(si, window, True,
-                             "LOCK ClientMessage received in DONT_BLANK mode.",
-                               "screen blanking is currently disabled.");
-      else if (si->locking_disabled_p)
+      if (si->locking_disabled_p)
        clientmessage_response (si, window, True,
                      "LOCK ClientMessage received, but locking is disabled.",
                              "locking not enabled.");
@@ -1950,6 +1965,12 @@ handle_clientmessage (saver_info *si, XEvent *event, Bool until_idle_p)
     }
   else if (type == XA_THROTTLE)
     {
+      /* The THROTTLE command is deprecated -- it predates the XDPMS
+         extension.  Instead of using -throttle, users should instead
+         just power off the monitor (e.g., "xset dpms force off".)
+         In a few minutes, xscreensaver will notice that the monitor
+         is off, and cease running hacks.
+       */
       if (si->throttled_p)
        clientmessage_response (si, window, True,
                                 "THROTTLE ClientMessage received, but "
@@ -2258,7 +2279,7 @@ display_is_on_console_p (saver_info *si)
 void
 check_for_leaks (const char *where)
 {
-#ifdef HAVE_SBRK
+#if defined(HAVE_SBRK) && defined(LEAK_PARANOIA)
   static unsigned long last_brk = 0;
   int b = (unsigned long) sbrk(0);
   if (last_brk && last_brk < b)