-/* xscreensaver, Copyright (c) 1991-1995 Jamie Zawinski <jwz@mcom.com>
+/* xscreensaver, Copyright (c) 1991-1996 Jamie Zawinski <jwz@netscape.com>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* and a few other things. The included "xscreensaver_command" program
* sends these messsages.
*
- * If we don't have the XIdle or MIT-SCREENSAVER extensions, then we do the
- * XAutoLock trick: notice every window that gets created, and wait 30
- * seconds or so until its creating process has settled down, and then
- * select KeyPress events on those windows which already select for
- * KeyPress events. It's important that we not select KeyPress on windows
- * which don't select them, because that would interfere with event
- * propagation. This will break if any program changes its event mask to
- * contain KeyRelease or PointerMotion more than 30 seconds after creating
- * the window, but that's probably pretty rare.
+ * If we don't have the XIdle, MIT-SCREEN-SAVER, or SGI SCREEN_SAVER
+ * extensions, then we do the XAutoLock trick: notice every window that
+ * gets created, and wait 30 seconds or so until its creating process has
+ * settled down, and then select KeyPress events on those windows which
+ * already select for KeyPress events. It's important that we not select
+ * KeyPress on windows which don't select them, because that would
+ * interfere with event propagation. This will break if any program
+ * changes its event mask to contain KeyRelease or PointerMotion more than
+ * 30 seconds after creating the window, but that's probably pretty rare.
*
* The reason that we can't select KeyPresses on windows that don't have
* them already is that, when dispatching a KeyPress event, X finds the
* one of them if the description above sounds just too flaky to live. It
* is, but those are your choices.
*
- * A third idle-detection option could be implement (but is not): when
+ * A third idle-detection option could be implemented (but is not): when
* running on the console display ($DISPLAY is `localhost`:0) and we're on a
* machine where /dev/tty and /dev/mouse have reasonable last-modification
- * times, we could just stat those. But the incremental benefit of
+ * times, we could just stat() those. But the incremental benefit of
* implementing this is really small, so forget I said anything.
*
* Debugging hints:
* - you probably can't set breakpoints in functions that are called on
* the other side of a call to fork() -- if your clients are dying
* with signal 5, Trace/BPT Trap, you're losing in this way.
- * - If you aren't using XIdle, don't leave this stopped under the
- * debugger for very long, or the X input buffer will get huge because
- * of the keypress events it's selecting for. This can make your X
- * server wedge with "no more input buffers."
+ * - If you aren't using a server extension, don't leave this stopped
+ * under the debugger for very long, or the X input buffer will get
+ * huge because of the keypress events it's selecting for. This can
+ * make your X server wedge with "no more input buffers."
*
- * ======================================================================== */
+ * ======================================================================== */
#if __STDC__
#include <stdlib.h>
#include <X11/extensions/xidle.h>
#endif /* HAVE_XIDLE_EXTENSION */
-#ifdef HAVE_SAVER_EXTENSION
+#ifdef HAVE_MIT_SAVER_EXTENSION
#include <X11/extensions/scrnsaver.h>
-#endif /* HAVE_SAVER_EXTENSION */
+#endif /* HAVE_MIT_SAVER_EXTENSION */
-#include "xscreensaver.h"
+#ifdef HAVE_SGI_SAVER_EXTENSION
+#include <X11/extensions/XScreenSaver.h>
+#endif /* HAVE_SGI_SAVER_EXTENSION */
-#if defined(SVR4) || defined(SYSV)
-# define srandom(i) srand((unsigned int)(i))
-#else
-# ifndef __linux
-extern void srandom P((int)); /* srand() is in stdlib.h... */
-# endif
-#endif
+#include "yarandom.h"
+#include "xscreensaver.h"
extern char *get_string_resource P((char *, char *));
extern Bool get_boolean_resource P((char *, char *));
extern XtIntervalId lock_id, cycle_id;
Bool use_xidle_extension;
-Bool use_saver_extension;
+Bool use_mit_saver_extension;
+Bool use_sgi_saver_extension;
Bool verbose_p;
Bool lock_p, locked_p;
extern Bool dbox_up_p;
extern int next_mode_p;
-#ifdef HAVE_SAVER_EXTENSION
-int saver_ext_event_number = 0;
-int saver_ext_error_number = 0;
-#endif /* HAVE_SAVER_EXTENSION */
+#ifdef HAVE_MIT_SAVER_EXTENSION
+int mit_saver_ext_event_number = 0;
+int mit_saver_ext_error_number = 0;
+#endif /* HAVE_MIT_SAVER_EXTENSION */
+
+#ifdef HAVE_SGI_SAVER_EXTENSION
+int sgi_saver_ext_event_number = 0;
+int sgi_saver_ext_error_number = 0;
+#endif /* HAVE_SGI_SAVER_EXTENSION */
static time_t initial_delay;
#ifdef NO_MOTIF /* kludge */
Bool demo_mode_p = 0;
Bool dbox_up_p = 0;
-#ifndef NO_LOCKING
-Time passwd_timeout = 0;
-#endif
#endif
\f
{ "-timeout", ".timeout", XrmoptionSepArg, 0 },
{ "-cycle", ".cycle", XrmoptionSepArg, 0 },
{ "-idelay", ".initialDelay", XrmoptionSepArg, 0 },
+ { "-nice", ".nice", XrmoptionSepArg, 0 },
{ "-visual", ".visualID", XrmoptionSepArg, 0 },
{ "-lock-timeout", ".lockTimeout", XrmoptionSepArg, 0 },
{ "-install", ".installColormap", XrmoptionNoArg, "on" },
{ "-silent", ".verbose", XrmoptionNoArg, "off" },
{ "-xidle-extension", ".xidleExtension", XrmoptionNoArg, "on" },
{ "-no-xidle-extension", ".xidleExtension", XrmoptionNoArg, "off" },
- { "-ss-extension", ".saverExtension", XrmoptionNoArg, "on" },
- { "-no-ss-extension", ".saverExtension", XrmoptionNoArg, "off" },
+ { "-mit-extension", ".mitSaverExtension",XrmoptionNoArg, "on" },
+ { "-no-mit-extension", ".mitSaverExtension",XrmoptionNoArg, "off" },
+ { "-sgi-extension", ".sgiSaverExtension",XrmoptionNoArg, "on" },
+ { "-no-sgi-extension", ".sgiSaverExtension",XrmoptionNoArg, "off" },
{ "-lock", ".lock", XrmoptionNoArg, "on" },
{ "-no-lock", ".lock", XrmoptionNoArg, "off" }
};
do_help P((void))
{
printf ("\
-xscreensaver %s, copyright (c) 1991-1995 by Jamie Zawinski <jwz@mcom.com>.\n\
+xscreensaver %s, copyright (c) 1991-1996 by Jamie Zawinski <jwz@netscape.com>.\n\
The standard Xt command-line options are accepted; other options include:\n\
\n\
-timeout <minutes> When the screensaver should activate.\n\
-silent Don't.\n\
-xidle-extension Use the R5 XIdle server extension.\n\
-no-xidle-extension Don't.\n\
- -saver-extension Use the R6 MIT-SCREEN-SAVER server extension.\n\
- -no-saver-extension Don't.\n\
+ -mit-extension Use the R6 MIT_SCREEN_SAVER server extension.\n\
+ -no-mit-extension Don't.\n\
+ -sgi-extension Use the SGI SCREEN-SAVER server extension.\n\
+ -no-sgi-extension Don't.\n\
-lock Require a password before deactivating.\n\
-no-lock Don't.\n\
-lock-timeout <minutes> Grace period before locking; default 0.\n\
#ifdef NO_DEMO_MODE
printf ("Support for demo mode was not enabled at compile-time.\n");
#endif
-#if !defined(HAVE_XIDLE_EXTENSION) && !defined(HAVE_SAVER_EXTENSION)
- printf ("Support for the XIDLE and MIT-SCREEN-SAVER server extensions\
- was not\n\enabled at compile-time.\n");
-#endif /* !HAVE_XIDLE_EXTENSION && !HAVE_SAVER_EXTENSION */
+#if !defined(HAVE_XIDLE_EXTENSION) && !defined(HAVE_MIT_SAVER_EXTENSION) && !defined(HAVE_SGI_SAVER_EXTENSION)
+ printf ("Support for the XIDLE, SCREEN_SAVER, and MIT-SCREEN-SAVER server\
+ extensions\nwas not enabled at compile-time.\n");
+#endif /* !HAVE_XIDLE_EXTENSION && !HAVE_MIT_SAVER_EXTENSION && !HAVE_SGI_SAVER_EXTENSION */
fflush (stdout);
exit (1);
#endif /* !HAVE_XIDLE_EXTENSION */
/* don't set use_saver_extension unless it is explicitly specified */
- if (get_string_resource ("saverExtension", "Boolean"))
- use_xidle_extension = get_boolean_resource ("saverExtension", "Boolean");
+ if (get_string_resource ("mitSaverExtension", "Boolean"))
+ use_mit_saver_extension = get_boolean_resource ("mitSaverExtension",
+ "Boolean");
else
-#ifdef HAVE_SAVER_EXTENSION /* pick a default */
- use_saver_extension = True;
-#else /* !HAVE_SAVER_EXTENSION */
- use_saver_extension = False;
-#endif /* !HAVE_SAVER_EXTENSION */
+#ifdef HAVE_MIT_SAVER_EXTENSION /* pick a default */
+ use_mit_saver_extension = True;
+#else /* !HAVE_MIT_SAVER_EXTENSION */
+ use_mit_saver_extension = False;
+#endif /* !HAVE_MIT_SAVER_EXTENSION */
+ /* don't set use_saver_extension unless it is explicitly specified */
+ if (get_string_resource ("sgiSaverExtension", "Boolean"))
+ use_sgi_saver_extension = get_boolean_resource ("sgiSaverExtension",
+ "Boolean");
+ else
+#ifdef HAVE_SGI_SAVER_EXTENSION /* pick a default */
+ use_sgi_saver_extension = True;
+#else /* !HAVE_SGI_SAVER_EXTENSION */
+ use_sgi_saver_extension = False;
+#endif /* !HAVE_SGI_SAVER_EXTENSION */
get_screenhacks ();
}
XA_LOCK = XInternAtom (dpy, "LOCK", False);
}
-#ifdef HAVE_SAVER_EXTENSION
+#ifdef HAVE_MIT_SAVER_EXTENSION
static int
ignore_all_errors_ehandler (dpy, error)
}
static void
-init_saver_extension ()
+init_mit_saver_extension ()
{
XID kill_id;
Atom kill_type;
Window root = RootWindowOfScreen (screen);
- XScreenSaverInfo *info;
Pixmap blank_pix = XCreatePixmap (dpy, root, 1, 1, 1);
/* Kill off the old MIT-SCREEN-SAVER client if there is one.
XScreenSaverRegister (dpy, XScreenNumberOfScreen (screen),
(XID) blank_pix, XA_PIXMAP);
- info = XScreenSaverAllocInfo ();
+}
+#endif /* HAVE_MIT_SAVER_EXTENSION */
+
+
+#ifdef HAVE_SGI_SAVER_EXTENSION
-#if 0
- /* #### I think this is noticing that the saver is on, and replacing it
- without turning it off first. */
- saver = info->window;
- if (info->state == ScreenSaverOn)
+static void
+init_sgi_saver_extension ()
+{
+ if (! XScreenSaverEnable (dpy, XScreenNumberOfScreen(screen)))
{
- if (info->kind != ScreenSaverExternal)
- {
- XResetScreenSaver (display);
- XActivateScreenSaver (display);
- }
- StartSaver ();
+ fprintf (stderr,
+ "%s: %sSGI SCREEN_SAVER extension exists, but can't be initialized;\n\
+ perhaps some other screensaver program is already running?\n",
+ progname, (verbose_p ? "## " : ""));
+ use_sgi_saver_extension = False;
}
-#endif
}
-#endif /* HAVE_SAVER_EXTENSION */
+
+#endif /* HAVE_SGI_SAVER_EXTENSION */
extern void init_sigchld P((void));
nolock_reason = "not compiled with locking support";
#else
locking_disabled_p = False;
+
+#ifdef SCO
+ set_auth_parameters(argc, argv);
+#endif
+
if (! lock_init ()) /* before hack_uid() for proper permissions */
{
locking_disabled_p = True;
if (verbose_p)
printf ("\
-%s %s, copyright (c) 1991-1995 by Jamie Zawinski <jwz@mcom.com>.\n\
+%s %s, copyright (c) 1991-1996 by Jamie Zawinski <jwz@netscape.com>.\n\
pid = %d.\n", progname, screensaver_version, getpid ());
ensure_no_screensaver_running ();
demo_mode_p = initial_demo_mode_p;
screensaver_window = 0;
cursor = 0;
- initialize_screensaver_window ();
srandom ((int) time ((time_t *) 0));
cycle_id = 0;
lock_id = 0;
locked_p = False;
- if (use_saver_extension)
+ if (use_sgi_saver_extension)
{
-#ifdef HAVE_SAVER_EXTENSION
+#ifdef HAVE_SGI_SAVER_EXTENSION
if (! XScreenSaverQueryExtension (dpy,
- &saver_ext_event_number,
- &saver_ext_error_number))
+ &sgi_saver_ext_event_number,
+ &sgi_saver_ext_error_number))
+ {
+ fprintf (stderr,
+ "%s: %sdisplay %s does not support the SGI SCREEN_SAVER extension.\n",
+ progname, (verbose_p ? "## " : ""), DisplayString (dpy));
+ use_sgi_saver_extension = False;
+ }
+ else if (use_mit_saver_extension)
+ {
+ fprintf (stderr, "%s: %sSGI SCREEN_SAVER extension used instead\
+ of MIT-SCREEN-SAVER extension.\n",
+ progname, (verbose_p ? "## " : ""));
+ use_mit_saver_extension = False;
+ }
+ else if (use_xidle_extension)
+ {
+ fprintf (stderr,
+ "%s: %sSGI SCREEN_SAVER extension used instead of XIDLE extension.\n",
+ progname, (verbose_p ? "## " : ""));
+ use_xidle_extension = False;
+ }
+#else /* !HAVE_MIT_SAVER_EXTENSION */
+ fprintf (stderr,
+ "%s: %snot compiled with support for the SGI SCREEN_SAVER extension.\n",
+ progname, (verbose_p ? "## " : ""));
+ use_sgi_saver_extension = False;
+#endif /* !HAVE_SGI_SAVER_EXTENSION */
+ }
+
+ if (use_mit_saver_extension)
+ {
+#ifdef HAVE_MIT_SAVER_EXTENSION
+ if (! XScreenSaverQueryExtension (dpy,
+ &mit_saver_ext_event_number,
+ &mit_saver_ext_error_number))
{
fprintf (stderr,
"%s: %sdisplay %s does not support the MIT-SCREEN-SAVER extension.\n",
progname, (verbose_p ? "## " : ""), DisplayString (dpy));
- use_saver_extension = False;
+ use_mit_saver_extension = False;
}
else if (use_xidle_extension)
{
progname, (verbose_p ? "## " : ""));
use_xidle_extension = False;
}
-#else /* !HAVE_SAVER_EXTENSION */
+#else /* !HAVE_MIT_SAVER_EXTENSION */
fprintf (stderr,
"%s: %snot compiled with support for the MIT-SCREEN-SAVER extension.\n",
progname, (verbose_p ? "## " : ""));
- use_saver_extension = False;
-#endif /* !HAVE_SAVER_EXTENSION */
+ use_mit_saver_extension = False;
+#endif /* !HAVE_MIT_SAVER_EXTENSION */
}
if (use_xidle_extension)
#endif /* !HAVE_XIDLE_EXTENSION */
}
+ /* Call this only after having probed for presence of desired extension. */
+ initialize_screensaver_window ();
+
init_sigchld ();
disable_builtin_screensaver ();
-#ifdef HAVE_SAVER_EXTENSION
- if (use_saver_extension)
- init_saver_extension ();
-#endif /* HAVE_SAVER_EXTENSION */
+#ifdef HAVE_MIT_SAVER_EXTENSION
+ if (use_mit_saver_extension)
+ init_mit_saver_extension ();
+#endif /* HAVE_MIT_SAVER_EXTENSION */
- if (verbose_p && use_saver_extension)
+#ifdef HAVE_SGI_SAVER_EXTENSION
+ if (use_sgi_saver_extension)
+ init_sgi_saver_extension ();
+#endif /* HAVE_SGI_SAVER_EXTENSION */
+
+ if (verbose_p && use_mit_saver_extension)
fprintf (stderr, "%s: using MIT-SCREEN-SAVER server extension.\n",
progname);
+ if (verbose_p && use_sgi_saver_extension)
+ fprintf (stderr, "%s: using SGI SCREEN_SAVER server extension.\n",
+ progname);
if (verbose_p && use_xidle_extension)
fprintf (stderr, "%s: using XIdle server extension.\n",
progname);
/* If the user wants demo mode, don't wait around before doing it. */
initial_delay = 0;
- if (!use_xidle_extension && !use_saver_extension)
+ if (!use_xidle_extension &&
+ !use_mit_saver_extension &&
+ !use_sgi_saver_extension)
{
if (initial_delay)
{
blank_screen ();
spawn_screenhack (True);
if (cycle)
- cycle_id = XtAppAddTimeOut (app, cycle, (XtPointer)cycle_timer, 0);
+ cycle_id = XtAppAddTimeOut (app, cycle,
+ (XtTimerCallbackProc)cycle_timer, 0);
#ifndef NO_LOCKING
if (lock_p && lock_timeout == 0)
if (lock_p && !locked_p)
/* locked_p might be true already because of ClientMessage */
lock_id = XtAppAddTimeOut (app,lock_timeout,
- (XtPointer)activate_lock_timer,0);
+ (XtTimerCallbackProc)
+ activate_lock_timer,0);
#endif
PASSWD_INVALID:
XEvent *event;
Bool until_idle_p;
{
- Atom type;
+ Atom type = 0;
if (event->xclient.message_type != XA_SCREENSAVER)
{
char *str;
progname, (verbose_p ? "## " : ""),
(str ? str : "(null)"));
if (str) XFree (str);
+ return False;
}
if (event->xclient.format != 32)
{
fprintf (stderr, "%s: %sClientMessage of format %d received, not 32\n",
progname, (verbose_p ? "## " : ""), event->xclient.format);
+ return False;
}
type = event->xclient.data.l[0];
if (type == XA_ACTIVATE)
{
if (verbose_p)
printf ("%s: ACTIVATE ClientMessage received.\n", progname);
- return True;
+ if (use_mit_saver_extension || use_sgi_saver_extension)
+ {
+ XForceScreenSaver (dpy, ScreenSaverActive);
+ return False;
+ }
+ else
+ {
+ return True;
+ }
}
fprintf (stderr,
"%s: %sClientMessage ACTIVATE received while already active.\n",
{
if (verbose_p)
printf ("%s: DEACTIVATE ClientMessage received.\n", progname);
- return True;
+ if (use_mit_saver_extension || use_sgi_saver_extension)
+ {
+ XForceScreenSaver (dpy, ScreenSaverReset);
+ return False;
+ }
+ else
+ {
+ return True;
+ }
}
fprintf (stderr,
"%s: %sClientMessage DEACTIVATE received while inactive.\n",
}
if (until_idle_p)
- return True;
+ {
+ if (use_mit_saver_extension || use_sgi_saver_extension)
+ {
+ XForceScreenSaver (dpy, ScreenSaverActive);
+ return False;
+ }
+ else
+ {
+ return True;
+ }
+ }
}
#endif
}
else
{
char *str;
- str = XGetAtomName (dpy, type);
+ str = (type ? XGetAtomName(dpy, type) : 0);
if (str)
fprintf (stderr,
"%s: %sunrecognised screensaver ClientMessage %s received\n",
progname, (verbose_p ? "## " : ""), str);
else
fprintf (stderr,
- "%s: %sunrecognised screensaver ClientMessage 0x%x received\n",
+ "%s: %sunrecognised screensaver ClientMessage 0x%x received\n",
progname, (verbose_p ? "## " : ""),
(unsigned int) event->xclient.data.l[0]);
if (str) XFree (str);
projects / xscreensaver / blobdiff