-/* xscreensaver, Copyright (c) 1992, 1995, 1997, 1998, 2001
+/* xscreensaver, Copyright (c) 1992, 1995, 1997, 1998, 2001, 2002, 2003, 2004
* Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
#include "version.h"
#include "vroot.h"
+#ifndef _XSCREENSAVER_VROOT_H_
+# error Error! You have an old version of vroot.h! Check -I args.
+#endif /* _XSCREENSAVER_VROOT_H_ */
+
#ifndef isupper
# define isupper(c) ((c) >= 'A' && (c) <= 'Z')
#endif
{ "-install", ".installColormap", XrmoptionNoArg, "True" },
{ "-noinstall",".installColormap", XrmoptionNoArg, "False" },
{ "-visual", ".visualID", XrmoptionSepArg, 0 },
+ { "-window-id", ".windowID", XrmoptionSepArg, 0 },
{ 0, 0, 0, 0 }
};
"*mono: false",
"*installColormap: false",
"*visualID: default",
+ "*windowID: ",
+ "*desktopGrabber: xscreensaver-getimage %s",
0
};
void
screenhack_handle_event (Display *dpy, XEvent *event)
{
+ if (XtAppPending (app) & (XtIMTimer|XtIMAlternateInput))
+ XtAppProcessEvent (app, XtIMTimer|XtIMAlternateInput);
+
switch (event->xany.type)
{
case KeyPress:
/* Notice when the user has requested a different visual or colormap
- on a pre-existing window (e.g., "-root -visual truecolor") and
- complain, since when drawing on an existing window, we have no
- choice about these things.
+ on a pre-existing window (e.g., "-root -visual truecolor" or
+ "-window-id 0x2c00001 -install") and complain, since when drawing
+ on an existing window, we have no choice about these things.
*/
static void
visual_warning (Screen *screen, Window window, Visual *visual, Colormap cmap,
if (window == RootWindowOfScreen (screen))
strcpy (win, "root window");
else
- sprintf (win, "window 0x%x", (unsigned long) window);
+ sprintf (win, "window 0x%lx", (unsigned long) window);
if (window_p)
- sprintf (why, "-window-id 0x%x", (unsigned long) window);
+ sprintf (why, "-window-id 0x%lx", (unsigned long) window);
else
strcpy (why, "-root");
{
fprintf (stderr, "%s: ignoring `-visual %s' because of `%s'.\n",
progname, visual_string, why);
- fprintf (stderr, "%s: using %s's visual 0x%x.\n",
+ fprintf (stderr, "%s: using %s's visual 0x%lx.\n",
progname, win, XVisualIDFromVisual (visual));
}
free (visual_string);
{
fprintf (stderr, "%s: ignoring `-install' because of `%s'.\n",
progname, why);
- fprintf (stderr, "%s: using %s's colormap 0x%x.\n",
+ fprintf (stderr, "%s: using %s's colormap 0x%lx.\n",
progname, win, (unsigned long) cmap);
}
}
+static void
+fix_fds (void)
+{
+ /* Bad Things Happen if stdin, stdout, and stderr have been closed
+ (as by the `sh incantation "attraction >&- 2>&-"). When you do
+ that, the X connection gets allocated to one of these fds, and
+ then some random library writes to stderr, and random bits get
+ stuffed down the X pipe, causing "Xlib: sequence lost" errors.
+ So, we cause the first three file descriptors to be open to
+ /dev/null if they aren't open to something else already. This
+ must be done before any other files are opened (or the closing
+ of that other file will again free up one of the "magic" first
+ three FDs.)
+
+ We do this by opening /dev/null three times, and then closing
+ those fds, *unless* any of them got allocated as #0, #1, or #2,
+ in which case we leave them open. Gag.
+
+ Really, this crap is technically required of *every* X program,
+ if you want it to be robust in the face of "2>&-".
+ */
+ int fd0 = open ("/dev/null", O_RDWR);
+ int fd1 = open ("/dev/null", O_RDWR);
+ int fd2 = open ("/dev/null", O_RDWR);
+ if (fd0 > 2) close (fd0);
+ if (fd1 > 2) close (fd1);
+ if (fd2 > 2) close (fd2);
+}
+
+
int
main (int argc, char **argv)
{
Visual *visual;
Colormap cmap;
Bool root_p;
+ Window on_window = 0;
XEvent event;
Boolean dont_clear /*, dont_map */;
char version[255];
+ fix_fds();
+
#ifdef XLOCKMORE
pre_merge_options ();
#endif
int i;
int x = 18;
int end = 78;
- Bool help_p = !strcmp(argv[1], "-help");
+ Bool help_p = (!strcmp(argv[1], "-help") ||
+ !strcmp(argv[1], "--help"));
fprintf (stderr, "%s\n", version);
for (s = progclass; *s; s++) fprintf(stderr, " ");
fprintf (stderr, " http://www.jwz.org/xscreensaver/\n\n");
if (argp) fprintf (stderr, " <arg>");
if (i != merged_options_size - 1) fprintf (stderr, ", ");
}
+
fprintf (stderr, ".\n");
+
+#if 0
+ if (help_p)
+ {
+ fprintf (stderr, "\nResources:\n\n");
+ for (i = 0; i < merged_options_size; i++)
+ {
+ const char *opt = merged_options [i].option;
+ const char *res = merged_options [i].specifier + 1;
+ const char *val = merged_options [i].value;
+ char *s = get_string_resource ((char *) res, (char *) res);
+
+ if (s)
+ {
+ int L = strlen(s);
+ while (L > 0 && (s[L-1] == ' ' || s[L-1] == '\t'))
+ s[--L] = 0;
+ }
+
+ fprintf (stderr, " %-16s %-18s ", opt, res);
+ if (merged_options [i].argKind == XrmoptionSepArg)
+ {
+ fprintf (stderr, "[%s]", (s ? s : "?"));
+ }
+ else
+ {
+ fprintf (stderr, "%s", (val ? val : "(null)"));
+ if (val && s && !strcasecmp (val, s))
+ fprintf (stderr, " [default]");
+ }
+ fprintf (stderr, "\n");
+ }
+ fprintf (stderr, "\n");
+ }
+#endif
+
exit (help_p ? 0 : 1);
}
root_p = get_boolean_resource ("root", "Boolean");
- if (root_p)
+ {
+ char *s = get_string_resource ("windowID", "WindowID");
+ if (s && *s)
+ on_window = get_integer_resource ("windowID", "WindowID");
+ if (s) free (s);
+ }
+
+ if (on_window)
+ {
+ XWindowAttributes xgwa;
+ window = (Window) on_window;
+ XtDestroyWidget (toplevel);
+ XGetWindowAttributes (dpy, window, &xgwa);
+ cmap = xgwa.colormap;
+ visual = xgwa.visual;
+ screen = xgwa.screen;
+ visual_warning (screen, window, visual, cmap, True);
+
+ /* Select KeyPress and resize events on the external window.
+ */
+ xgwa.your_event_mask |= KeyPressMask | StructureNotifyMask;
+ XSelectInput (dpy, window, xgwa.your_event_mask);
+
+ /* Select ButtonPress and ButtonRelease events on the external window,
+ if no other app has already selected them (only one app can select
+ ButtonPress at a time: BadAccess results.)
+ */
+ if (! (xgwa.all_event_masks & (ButtonPressMask | ButtonReleaseMask)))
+ XSelectInput (dpy, window,
+ (xgwa.your_event_mask |
+ ButtonPressMask | ButtonReleaseMask));
+ }
+ else if (root_p)
{
XWindowAttributes xgwa;
- window = RootWindowOfScreen (XtScreen (toplevel));
+ window = VirtualRootWindowOfScreen (XtScreen (toplevel));
XtDestroyWidget (toplevel);
XGetWindowAttributes (dpy, window, &xgwa);
cmap = xgwa.colormap;
unsigned int bg, bd;
Widget new;
- cmap = XCreateColormap (dpy, RootWindowOfScreen(screen),
+ cmap = XCreateColormap (dpy, VirtualRootWindowOfScreen(screen),
visual, AllocNone);
bg = get_pixel_resource ("background", "Background", dpy, cmap);
bd = get_pixel_resource ("borderColor", "Foreground", dpy, cmap);
XtNbackground, (Pixel) bg,
XtNborderColor, (Pixel) bd,
XtNinput, True, /* for WM_HINTS */
- 0);
+ NULL);
XtDestroyWidget (toplevel);
toplevel = new;
XtRealizeWidget (toplevel);
XtVaSetValues (toplevel,
XtNmappedWhenManaged, False,
XtNinput, True, /* for WM_HINTS */
- 0);
+ NULL);
XtRealizeWidget (toplevel);
window = XtWindow (toplevel);
/*
if (dont_map)
{
- XtVaSetValues (toplevel, XtNmappedWhenManaged, False, 0);
+ XtVaSetValues (toplevel, XtNmappedWhenManaged, False, NULL);
XtRealizeWidget (toplevel);
}
else
XtPopup (toplevel, XtGrabNone);
}
- XtVaSetValues(toplevel, XtNtitle, version, 0);
+ XtVaSetValues(toplevel, XtNtitle, version, NULL);
/* For screenhack_handle_events(): select KeyPress, and
announce that we accept WM_DELETE_WINDOW. */
XWindowAttributes xgwa;
XGetWindowAttributes (dpy, window, &xgwa);
XSelectInput (dpy, window,
- xgwa.your_event_mask | KeyPressMask | ButtonPressMask);
+ (xgwa.your_event_mask | KeyPressMask |
+ ButtonPressMask | ButtonReleaseMask));
XChangeProperty (dpy, window, XA_WM_PROTOCOLS, XA_ATOM, 32,
PropModeReplace,
(unsigned char *) &XA_WM_DELETE_WINDOW, 1);
XClearWindow (dpy, window);
}
- if (!root_p)
+ if (!root_p && !on_window)
/* wait for it to be mapped */
XIfEvent (dpy, &event, MapNotify_event_p, (XPointer) window);
projects / xscreensaver / blobdiff