X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=driver%2Fwindows.c;h=7ee76045134b9cf0967b73821c2582aa9ec545fa;hp=e06ab2e9640cd1f674b4b5da9c744b22fcd536f2;hb=9c9d475ff889ed8be02e8ce8c17da28b93278fca;hpb=e4fa2ac140f7bc56571373a7b7eb585fa4500e38 diff --git a/driver/windows.c b/driver/windows.c index e06ab2e9..7ee76045 100644 --- a/driver/windows.c +++ b/driver/windows.c @@ -1,5 +1,5 @@ /* windows.c --- turning the screen black; dealing with visuals, virtual roots. - * xscreensaver, Copyright (c) 1991-2003 Jamie Zawinski + * xscreensaver, Copyright (c) 1991-2004 Jamie Zawinski * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that @@ -47,6 +47,10 @@ # include #endif /* HAVE_XF86VMODE */ +#ifdef HAVE_XINERAMA +# include +#endif /* HAVE_XINERAMA */ + /* This file doesn't need the Xt headers, so stub these types out... */ #undef XtPointer #define XtAppContext void* @@ -166,6 +170,55 @@ ungrab_mouse(saver_info *si) } +/* Apparently there is this program called "rdesktop" which is a windows + terminal server client for Unix. It would seem that this program holds + the keyboard GRABBED the whole time it has focus! This is, of course, + completely idiotic: the whole point of grabbing is to get events when + you do *not* have focus, so grabbing *only when* you have focus is + completely redundant -- unless your goal is to make xscreensaver not + able to ever lock the screen when your program is running. + + If xscreensaver blanks while rdesktop still has a keyboard grab, then + when we try to prompt for the password, we won't get the characters: + they'll be typed into rdesktop. + + Perhaps rdesktop will release its keyboard grab if it loses focus? + What the hell, let's give it a try. If we fail to grab the keyboard + four times in a row, we forcibly set focus to "None" and try four + more times. (We don't touch focus unless we're already having a hard + time getting a grab.) + */ +static void +nuke_focus (saver_info *si, int screen_no) +{ + saver_preferences *p = &si->prefs; + Window focus = 0; + int rev = 0; + + XGetInputFocus (si->dpy, &focus, &rev); + + if (p->verbose_p) + { + char w[255], r[255]; + + if (focus == PointerRoot) strcpy (w, "PointerRoot"); + else if (focus == None) strcpy (w, "None"); + else sprintf (w, "0x%lx", (unsigned long) focus); + + if (rev == RevertToParent) strcpy (r, "RevertToParent"); + else if (rev == RevertToPointerRoot) strcpy (r, "RevertToPointerRoot"); + else if (rev == RevertToNone) strcpy (r, "RevertToNone"); + else sprintf (r, "0x%x", rev); + + fprintf (stderr, "%s: %d: removing focus from %s / %s.\n", + blurb(), screen_no, w, r); + } + + XSetInputFocus (si->dpy, None, RevertToNone, CurrentTime); + XSync (si->dpy, False); +} + + static Bool grab_keyboard_and_mouse (saver_info *si, Window window, Cursor cursor, int screen_no) @@ -173,6 +226,9 @@ grab_keyboard_and_mouse (saver_info *si, Window window, Cursor cursor, Status mstatus = 0, kstatus = 0; int i; int retries = 4; + Bool focus_fuckus = False; + + AGAIN: for (i = 0; i < retries; i++) { @@ -186,8 +242,17 @@ grab_keyboard_and_mouse (saver_info *si, Window window, Cursor cursor, } if (kstatus != GrabSuccess) - fprintf (stderr, "%s: couldn't grab keyboard! (%s)\n", - blurb(), grab_string(kstatus)); + { + fprintf (stderr, "%s: couldn't grab keyboard! (%s)\n", + blurb(), grab_string(kstatus)); + + if (! focus_fuckus) + { + focus_fuckus = True; + nuke_focus (si, screen_no); + goto AGAIN; + } + } for (i = 0; i < retries; i++) { @@ -917,22 +982,23 @@ get_screen_viewport (saver_screen_info *ssi, int w = WidthOfScreen (ssi->screen); int h = HeightOfScreen (ssi->screen); -#ifdef HAVE_XF86VMODE +# ifdef HAVE_XF86VMODE saver_info *si = ssi->global; + saver_preferences *p = &si->prefs; int event, error; int dot; XF86VidModeModeLine ml; int x, y; Bool xinerama_p = si->xinerama_p; -#ifndef HAVE_XINERAMA +# ifndef HAVE_XINERAMA /* Even if we don't have the client-side Xinerama lib, check to see if the server supports Xinerama, so that we know to ignore the VidMode extension -- otherwise a server crash could result. Yay. */ xinerama_p = XQueryExtension (si->dpy, "XINERAMA", &error, &event, &error); -#endif /* !HAVE_XINERAMA */ +# endif /* !HAVE_XINERAMA */ -#ifdef HAVE_XINERAMA +# ifdef HAVE_XINERAMA if (xinerama_p) { int mouse_p = (target_x != -1 && target_y != -1); @@ -975,7 +1041,7 @@ get_screen_viewport (saver_screen_info *ssi, return; } -#endif /* HAVE_XINERAMA */ +# endif /* HAVE_XINERAMA */ if (!xinerama_p && /* Xinerama + VidMode = broken. */ XF86VidModeQueryExtension (si->dpy, &event, &error) && @@ -1025,6 +1091,45 @@ get_screen_viewport (saver_screen_info *ssi, *w_ret, *h_ret, *x_ret, *y_ret); + if (p->getviewport_full_of_lies_p) + { + /* XF86VidModeGetViewPort() tends to be full of lies on laptops + that have a docking station or external monitor that runs in + a different resolution than the laptop's screen: + + http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=81593 + http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=208417 + http://bugs.xfree86.org/show_bug.cgi?id=421 + + The XFree86 developers have closed the bug. As far as I can + tell, their reason for this was, "this is an X server bug, + but it's pretty hard to fix. Therefore, we are closing it." + + So, now there's a preference item for those unfortunate users to + tell us not to trust a word that XF86VidModeGetViewPort() says. + */ + static int warned_once = 0; + if (!warned_once && verbose_p) + { + warned_once = 1; + fprintf (stderr, + "%s: %d: XF86VidModeGetViewPort() says vp is %dx%d+%d+%d;\n" + "%s: %d: assuming that is a pack of lies;\n" + "%s: %d: using %dx%d+0+0 instead.\n", + blurb(), ssi->number, + *w_ret, *h_ret, *x_ret, *y_ret, + blurb(), ssi->number, + blurb(), ssi->number, w, h); + } + + *x_ret = 0; + *y_ret = 0; + *w_ret = w; + *h_ret = h; + return; + } + + /* Apparently, though the server stores the X position in increments of 1 pixel, it will only make changes to the *display* in some other increment. With XF86_SVGA on a Thinkpad, the display only updates @@ -1052,7 +1157,7 @@ get_screen_viewport (saver_screen_info *ssi, will still look pretty stupid -- for example, "slidescreen" will cut off the left and right edges of the grid, etc. */ -# define FUDGE 16 +# define FUDGE 16 if (x > 0 && x < w - ml.hdisplay) /* not at left edge or right edge */ { /* Round X position down to next lower multiple of FUDGE. @@ -1061,7 +1166,7 @@ get_screen_viewport (saver_screen_info *ssi, *x_ret = ((x - 1) / FUDGE) * FUDGE; *w_ret += (FUDGE * 2); } -# undef FUDGE +# undef FUDGE if (*x_ret != x || *y_ret != y || @@ -1076,7 +1181,7 @@ get_screen_viewport (saver_screen_info *ssi, return; } -#endif /* HAVE_XF86VMODE */ +# endif /* HAVE_XF86VMODE */ *x_ret = 0; *y_ret = 0; @@ -1433,6 +1538,131 @@ initialize_screensaver_window (saver_info *si) } +/* Called when the RANDR (Resize and Rotate) extension tells us that the + size of the screen has changed while the screen was blanked. If we + don't do this, then the screen saver will no longer fully fill the + screen, and some of the underlying desktop may be visible. + */ +void +resize_screensaver_window (saver_info *si) +{ + saver_preferences *p = &si->prefs; + int i; + + /* First update the size info in the saver_screen_info structs. + */ + +# ifdef HAVE_XINERAMA + if (si->xinerama_p) + { + /* As of XFree86 4.3.0, the RANDR and XINERAMA extensions cannot coexist. + However, maybe they will someday, so I'm guessing that the right thing + to do in that case will be to re-query the Xinerama rectangles after + a RANDR size change is received: presumably, if the resolution of one + or more of the monitors has changed, then the Xinerama rectangle + corresponding to that monitor will also have been updated. + */ + int nscreens; + XineramaScreenInfo *xsi = XineramaQueryScreens (si->dpy, &nscreens); + if (nscreens != si->nscreens) abort(); + if (!xsi) abort(); + for (i = 0; i < si->nscreens; i++) + { + saver_screen_info *ssi = &si->screens[i]; + if (p->verbose_p && + (ssi->x != xsi[i].x_org || + ssi->y != xsi[i].y_org || + ssi->width != xsi[i].width || + ssi->height != xsi[i].height)) + fprintf (stderr, + "%s: %d: resize xinerama from %dx%d+%d+%d to %dx%d+%d+%d\n", + blurb(), i, + ssi->width, ssi->height, ssi->x, ssi->y, + xsi[i].width, xsi[i].height, xsi[i].x_org, xsi[i].y_org); + + ssi->x = xsi[i].x_org; + ssi->y = xsi[i].y_org; + ssi->width = xsi[i].width; + ssi->height = xsi[i].height; + } + XFree (xsi); + } + else +# endif /* HAVE_XINERAMA */ + { + /* Not Xinerama -- get the real sizes of the root windows. */ + for (i = 0; i < si->nscreens; i++) + { + saver_screen_info *ssi = &si->screens[i]; + XWindowAttributes xgwa; + XGetWindowAttributes (si->dpy, RootWindowOfScreen (ssi->screen), + &xgwa); + + if (p->verbose_p && + (ssi->x != xgwa.x || + ssi->y != xgwa.y || + ssi->width != xgwa.width || + ssi->height != xgwa.height)) + fprintf (stderr, + "%s: %d: resize screen from %dx%d+%d+%d to %dx%d+%d+%d\n", + blurb(), i, + ssi->width, ssi->height, ssi->x, ssi->y, + xgwa.width, xgwa.height, xgwa.x, xgwa.y); + + ssi->x = xgwa.x; + ssi->y = xgwa.y; + ssi->width = xgwa.width; + ssi->height = xgwa.height; + } + } + + /* Next, ensure that the screensaver windows are the right size, taking + into account both the new size of the screen in question's root window, + and any viewport within that. + */ + + for (i = 0; i < si->nscreens; i++) + { + saver_screen_info *ssi = &si->screens[i]; + XWindowAttributes xgwa; + XWindowChanges changes; + int x, y, width, height; + unsigned int changesmask = CWX|CWY|CWWidth|CWHeight|CWBorderWidth; + + XGetWindowAttributes (si->dpy, ssi->screensaver_window, &xgwa); + get_screen_viewport (ssi, &x, &y, &width, &height, -1, -1, + (p->verbose_p && !si->screen_blanked_p)); + if (xgwa.x == x && + xgwa.y == y && + xgwa.width == width && + xgwa.height == height) + continue; /* no change! */ + + changes.x = x; + changes.y = y; + changes.width = width; + changes.height = height; + changes.border_width = 0; + + if (p->debug_p && !p->quad_p) changes.width = changes.width / 2; + + if (p->verbose_p) + fprintf (stderr, + "%s: %d: resize 0x%lx from %dx%d+%d+%d to %dx%d+%d+%d\n", + blurb(), i, (unsigned long) ssi->screensaver_window, + xgwa.width, xgwa.height, xgwa.x, xgwa.y, + width, height, x, y); + if (! safe_XConfigureWindow (si->dpy, ssi->screensaver_window, + changesmask, &changes)) + { + fprintf (stderr, + "%s: %d: someone horked our saver window (0x%lx)! Unable to resize it!\n", + blurb(), i, (unsigned long) ssi->screensaver_window); + } + } +} + + void raise_window (saver_info *si, Bool inhibit_fade, Bool between_hacks_p, Bool dont_clear)