-/* xscreensaver, Copyright (c) 1993 Jamie Zawinski <jwz@mcom.com>
+/* xscreensaver, Copyright (c) 1993-1998 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
* implied warranty.
*/
-#ifdef VMS
-#include "config.h"
-#endif /* VMS */
+#ifndef __XSCREENSAVER_H__
+#define __XSCREENSAVER_H__
-#if __STDC__
-# include <stdlib.h>
+#include <stdlib.h>
+#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
-#if __STDC__
-# define P(x)x
-#else
-# define P(x)()
-# ifndef const
-# define const /**/
-# endif
+#include <string.h>
+#include <stdio.h>
+
+extern char *progname;
+extern char *progclass;
+
+typedef struct saver_preferences saver_preferences;
+typedef struct saver_info saver_info;
+typedef struct saver_screen_info saver_screen_info;
+
+
+#undef countof
+#define countof(x) (sizeof((x))/sizeof((*x)))
+
+
+
+/* This structure holds all the user-specified parameters, read from the
+ command line, the resource database, or entered through a dialog box.
+ */
+struct saver_preferences {
+ Bool verbose_p; /* whether to print out lots of status info */
+ Bool timestamp_p; /* whether to mark messages with a timestamp */
+ Bool debug_p; /* pay no mind to the man behind the curtain */
+
+ Bool lock_p; /* whether to lock as well as save */
+ Bool fade_p; /* whether to fade to black */
+ Bool unfade_p; /* whether to fade from black */
+ int fade_seconds; /* how long that should take */
+ int fade_ticks; /* how many ticks should be used */
+
+ Bool install_cmap_p; /* whether we should use our own colormap
+ when using the screen's default visual. */
+
+ char **screenhacks; /* the programs to run */
+ int screenhacks_count;
+
+ int nice_inferior; /* nice value for subprocs */
+
+ int initial_delay; /* how long to sleep after launch */
+ Time timeout; /* how much idle time before activation */
+ Time lock_timeout; /* how long after activation locking starts */
+ Time cycle; /* how long each hack should run */
+#ifndef NO_LOCKING
+ Time passwd_timeout; /* how much time before pw dialog goes down */
#endif
+ Time pointer_timeout; /* how often to check mouse position */
+ Time notice_events_timeout; /* how long after window creation to select */
+ Time watchdog_timeout; /* how often to re-raise and re-blank screen */
+
+ Bool use_xidle_extension; /* which extension to use, if possible */
+ Bool use_mit_saver_extension;
+ Bool use_sgi_saver_extension;
+
+ char *shell; /* where to find /bin/sh */
+
+};
+
+
+/* This structure holds all the data that applies to the program as a whole,
+ or to the non-screen-specific parts of the display connection.
+ */
+struct saver_info {
+ char *version;
+ saver_preferences prefs;
+
+ int nscreens;
+ saver_screen_info *screens;
+ saver_screen_info *default_screen; /* ...on which dialogs will appear. */
+
+ /* =======================================================================
+ global connection info
+ ======================================================================= */
+
+ XtAppContext app;
+ Display *dpy;
+ XrmDatabase db;
+
+ /* =======================================================================
+ server extension info
+ ======================================================================= */
-#ifdef NO_MOTIF
-# define NO_DEMO_MODE
-# ifndef NO_LOCKING
-# define NO_LOCKING
+# ifdef HAVE_MIT_SAVER_EXTENSION
+ int mit_saver_ext_event_number;
+ int mit_saver_ext_error_number;
# endif
+# ifdef HAVE_SGI_SAVER_EXTENSION
+ int sgi_saver_ext_event_number;
+ int sgi_saver_ext_error_number;
+# endif
+
+
+ /* =======================================================================
+ blanking
+ ======================================================================= */
+
+ Bool screen_blanked_p; /* Whether the saver is currently active. */
+ Window mouse_grab_window; /* Window holding our mouse grab */
+ Window keyboard_grab_window; /* Window holding our keyboard grab */
+
+
+ /* =======================================================================
+ locking
+ ======================================================================= */
+
+ Bool locking_disabled_p; /* Sometimes locking is impossible. */
+ char *nolock_reason; /* This is why. */
+ Bool locked_p; /* Whether the screen is currently locked. */
+ Bool dbox_up_p; /* Whether the demo-mode or passwd dialogs
+ are currently visible */
+
+ /* =======================================================================
+ demoing
+ ======================================================================= */
+
+ Bool demo_mode_p; /* Whether demo-mode is active */
+ char *demo_hack; /* The hack that has been selected from the
+ dialog box, which should be run next. */
+
+
+ /* =======================================================================
+ asking questions
+ ======================================================================= */
+
+ Bool question_up_p; /* Whether the question dialog is currently
+ visible. */
+ Widget question_dialog; /* The question dialog, if any. */
+
+
+ /* =======================================================================
+ timers
+ ======================================================================= */
+
+ XtIntervalId lock_id; /* Timer to implement `prefs.lock_timeout' */
+ XtIntervalId cycle_id; /* Timer to implement `prefs.cycle' */
+ XtIntervalId timer_id; /* Timer to implement `prefs.timeout' */
+ XtIntervalId watchdog_id; /* Timer to implement `prefs.watchdog */
+ XtIntervalId check_pointer_timer_id; /* `prefs.pointer_timeout' */
+
+ time_t last_activity_time; /* Used only when no server exts. */
+ saver_screen_info *last_activity_screen;
+
+
+ /* =======================================================================
+ remote control
+ ======================================================================= */
+
+ int next_mode_p; /* Set to 1 if the NEXT ClientMessage has just
+ been received; set to 2 if PREV has just
+ been received. (#### This is nasty.) */
+
+ /* =======================================================================
+ subprocs
+ ======================================================================= */
+
+ XtIntervalId stderr_popup_timer;
+
+};
+
+
+/* This structure holds all the data that applies to the screen-specific parts
+ of the display connection; if the display has multiple screens, there will
+ be one of these for each screen.
+ */
+struct saver_screen_info {
+ saver_info *global;
+
+ Screen *screen;
+ Widget toplevel_shell;
+
+ /* =======================================================================
+ blanking
+ ======================================================================= */
+
+ Window screensaver_window; /* The window that will impersonate the root,
+ when the screensaver activates. Note that
+ the window stored here may change, as we
+ destroy and recreate it on different
+ visuals. */
+ Colormap cmap; /* The colormap that goes with the window. */
+ Bool install_cmap_p; /* whether we should use our own colormap.
+ This can be overridden on a per-hack basis.
+ */
+ Visual *current_visual; /* The visual of the window. */
+ Visual *default_visual; /* visual to use when none other specified */
+ int current_depth; /* How deep the visual (and the window) are. */
+
+ Window real_vroot; /* The original virtual-root window. */
+ Window real_vroot_value; /* What was in the __SWM_VROOT property. */
+
+ Cursor cursor; /* A blank cursor that goes with the
+ real root window. */
+ unsigned long black_pixel; /* Black, allocated from `cmap'. */
+
+# ifdef HAVE_MIT_SAVER_EXTENSION
+ Window server_mit_saver_window;
+# endif
+
+
+ /* =======================================================================
+ demoing
+ ======================================================================= */
+
+ Colormap demo_cmap; /* The colormap that goes with the dialogs:
+ this might be the same as `cmap' so care
+ must be taken not to free it while it's
+ still in use. */
+
+ /* =======================================================================
+ timers
+ ======================================================================= */
+
+ int poll_mouse_last_root_x; /* Used only when no server exts. */
+ int poll_mouse_last_root_y;
+ Window poll_mouse_last_child;
+ unsigned int poll_mouse_last_mask;
+
+
+ /* =======================================================================
+ subprocs
+ ======================================================================= */
+
+ int current_hack; /* Index into `prefs.screenhacks' */
+ pid_t pid;
+
+ int stderr_text_x;
+ int stderr_text_y;
+ int stderr_line_height;
+ XFontStruct *stderr_font;
+ GC stderr_gc;
+ Window stderr_overlay_window; /* Used if the server has overlay planes */
+ Colormap stderr_cmap;
+};
+
+
+\f
+
+/* =======================================================================
+ server extensions and virtual roots
+ ======================================================================= */
+
+extern void restore_real_vroot (saver_info *si);
+extern void disable_builtin_screensaver (saver_info *si, Bool turn_off_p);
+extern Bool ensure_no_screensaver_running (Display *, Screen *);
+
+#ifdef HAVE_MIT_SAVER_EXTENSION
+extern Bool query_mit_saver_extension (saver_info *);
#endif
+#ifdef HAVE_SGI_SAVER_EXTENSION
+extern Bool query_sgi_saver_extension (saver_info *);
+#endif
+
+/* Display Power Management System (DPMS) interface. */
+extern Bool monitor_powered_on_p (saver_info *si);
+extern void monitor_power_on (saver_info *si);
+
+
+/* =======================================================================
+ blanking
+ ======================================================================= */
+
+extern void initialize_screensaver_window (saver_info *si);
+extern void raise_window (saver_info *si,
+ Bool inhibit_fade, Bool between_hacks_p,
+ Bool dont_clear);
+extern void blank_screen (saver_info *si);
+extern void unblank_screen (saver_info *si);
+extern void grab_keyboard_and_mouse (saver_info *si, Window, Cursor);
+extern void ungrab_keyboard_and_mouse (saver_info *si);
+
+/* =======================================================================
+ locking
+ ======================================================================= */
+
+#ifndef NO_LOCKING
+extern Bool unlock_p (saver_info *si);
+extern create_passwd_dialog (Widget, Visual *, Colormap);
+extern Bool lock_init (int argc, char **argv);
+extern Bool passwd_valid_p (const char *typed_passwd);
+#endif
+
+/* =======================================================================
+ demoing
+ ======================================================================= */
+
+#ifndef NO_DEMO_MODE
+extern void demo_mode (saver_info *si);
+extern void demo_mode_restart_process (saver_info *si);
+extern create_demo_dialog (Widget, Visual *, Colormap);
+extern create_resources_dialog (Widget, Visual *, Colormap);
+#endif
+
+#if !defined(NO_LOCKING) || !defined(NO_DEMO_MODE)
+extern void pop_up_dialog_box (Widget dialog, Widget form, int where);
+extern void format_into_label (Widget label, const char *arg);
+extern void steal_focus_and_colormap (Widget dialog);
+#endif
+
+#ifdef HAVE_MOTIF
+extern void disable_motif_drag_and_drop(Widget w);
+#endif
+
+
+/* =======================================================================
+ timers
+ ======================================================================= */
+
+extern void start_notice_events_timer (saver_info *, Window);
+extern void cycle_timer (XtPointer si, XtIntervalId *id);
+extern void activate_lock_timer (XtPointer si, XtIntervalId *id);
+extern void reset_watchdog_timer (saver_info *si, Bool on_p);
+extern void idle_timer (XtPointer si, XtIntervalId *id);
+extern void sleep_until_idle (saver_info *si, Bool until_idle_p);
+
+/* =======================================================================
+ remote control
+ ======================================================================= */
+
+extern Bool handle_clientmessage (saver_info *, XEvent *, Bool);
+
+/* =======================================================================
+ subprocs
+ ======================================================================= */
+
+extern void hack_environment (saver_info *si);
+extern void init_sigchld (void);
+extern void spawn_screenhack (saver_info *si, Bool first_time_p);
+extern void kill_screenhack (saver_info *si);
+extern void suspend_screenhack (saver_info *si, Bool suspend_p);
+extern Bool screenhack_running_p (saver_info *si);
+extern void emergency_kill_subproc (saver_info *si);
+extern Bool select_visual (saver_screen_info *ssi, const char *visual_name);
+extern const char *signal_name (int signal);
+
+/* =======================================================================
+ subprocs security
+ ======================================================================= */
-extern char *progname, *progclass;
-extern char *screensaver_version;
+#ifdef NO_SETUID
+# define hack_uid()
+# define hack_uid_warn()
+#else /* !NO_SETUID */
+ extern void hack_uid (saver_info *si);
+ extern void hack_uid_warn (saver_info *si);
+#endif /* NO_SETUID */
-extern Display *dpy;
-extern Screen *screen;
-extern Visual *visual;
-extern int visual_depth;
+/* =======================================================================
+ subprocs diagnostics
+ ======================================================================= */
-extern Bool verbose_p;
+extern FILE *real_stderr;
+extern FILE *real_stdout;
+extern void initialize_stderr (saver_info *si);
+extern void reset_stderr (saver_screen_info *ssi);
+extern void clear_stderr (saver_screen_info *ssi);
-extern void initialize_screensaver_window P((void));
-extern void raise_window P((Bool inhibit_fade, Bool between_hacks_p));
-extern void blank_screen P((void));
-extern void unblank_screen P((void));
-extern void restart_process P((void));
+/* =======================================================================
+ misc
+ ======================================================================= */
-extern void restore_real_vroot P((void));
+extern const char *blurb (void);
+extern void save_argv (int argc, char **argv);
+extern void saver_exit (saver_info *si, int status);
+extern void restart_process (saver_info *si);
-extern void spawn_screenhack P((Bool));
-extern void kill_screenhack P((void));
+extern int saver_ehandler (Display *dpy, XErrorEvent *error);
+extern int BadWindow_ehandler (Display *dpy, XErrorEvent *error);
+extern Bool window_exists_p (Display *dpy, Window window);
+extern char *timestring (void);
-extern Colormap copy_colormap P((Display *, Colormap, Colormap));
-extern void fade_colormap P((Display*, Colormap, Colormap, int, int, Bool));
-extern void blacken_colormap P((Display *, Colormap));
+extern Atom XA_VROOT, XA_XSETROOT_ID;
+extern Atom XA_SCREENSAVER, XA_SCREENSAVER_VERSION, XA_SCREENSAVER_ID;
+extern Atom XA_SCREENSAVER_TIME;
-extern int BadWindow_ehandler P((Display *dpy, XErrorEvent *error));
+#endif /* __XSCREENSAVER_H__ */
projects / xscreensaver / blobdiff