-void
-raise_window (inhibit_fade, between_hacks_p)
- Bool inhibit_fade, between_hacks_p;
-{
- initialize_screensaver_window ();
-
- if (fade_p && !inhibit_fade && !demo_mode_p)
- {
- int grabbed;
- Colormap current_map = (between_hacks_p
- ? cmap
- : DefaultColormapOfScreen (screen));
- copy_colormap (dpy, current_map, cmap2);
- XGrabServer (dpy);
- /* grab and blacken mouse on the root window (saver not mapped yet) */
- grabbed = grab_mouse (RootWindowOfScreen (screen));
- /* fade what's on the screen to black */
- XInstallColormap (dpy, cmap2);
- fade_colormap (dpy, current_map, cmap2, fade_seconds, fade_ticks, True);
- XClearWindow (dpy, screensaver_window);
- XMapRaised (dpy, screensaver_window);
- /* Once the saver window is up, restore the colormap. */
- XInstallColormap (dpy, cmap);
- if (grabbed == GrabSuccess)
- XUngrabPointer (dpy, CurrentTime);
- XUngrabServer (dpy);
+Bool
+blank_screen (saver_info *si)
+{
+ int i;
+ Bool ok;
+ Window w;
+ int mscreen;
+
+ /* Note: we do our grabs on the root window, not on the screensaver window.
+ If we grabbed on the saver window, then the demo mode and lock dialog
+ boxes wouldn't get any events.
+
+ By "the root window", we mean "the root window that contains the mouse."
+ We use to always grab the mouse on screen 0, but that has the effect of
+ moving the mouse to screen 0 from whichever screen it was on, on
+ multi-head systems.
+ */
+ mscreen = mouse_screen (si);
+ w = RootWindowOfScreen(si->screens[mscreen].screen);
+ ok = grab_keyboard_and_mouse (si, w,
+ (si->demoing_p ? 0 : si->screens[0].cursor),
+ mscreen);
+
+
+# if 0
+ if (si->using_mit_saver_extension || si->using_sgi_saver_extension)
+ /* If we're using a server extension, then failure to get a grab is
+ not a big deal -- even without the grab, we will still be able
+ to un-blank when there is user activity, since the server will
+ tell us. */
+ /* #### No, that's not true: if we don't have a keyboard grab,
+ then we can't read passwords to unlock.
+ */
+ ok = True;
+# endif /* 0 */
+
+ if (!ok)
+ return False;
+
+ for (i = 0; i < si->nscreens; i++)
+ {
+ saver_screen_info *ssi = &si->screens[i];
+ if (ssi->real_screen_p)
+ save_real_vroot (ssi);
+ store_vroot_property (si->dpy,
+ ssi->screensaver_window,
+ ssi->screensaver_window);
+
+#ifdef HAVE_XF86VMODE
+ {
+ int ev, er;
+ if (!XF86VidModeQueryExtension (si->dpy, &ev, &er) ||
+ !safe_XF86VidModeGetViewPort (si->dpy, i,
+ &ssi->blank_vp_x,
+ &ssi->blank_vp_y))
+ ssi->blank_vp_x = ssi->blank_vp_y = -1;
+ }
+#endif /* HAVE_XF86VMODE */
+ }
+
+ raise_window (si, False, False, False);
+
+ si->screen_blanked_p = True;
+ si->blank_time = time ((time_t) 0);
+ si->last_wall_clock_time = 0;
+
+ store_saver_status (si); /* store blank time */
+
+ return True;
+}
+
+
+void
+unblank_screen (saver_info *si)
+{
+ saver_preferences *p = &si->prefs;
+ Bool unfade_p = (si->fading_possible_p && p->unfade_p);
+ int i;
+
+ monitor_power_on (si);
+ reset_watchdog_timer (si, False);
+
+ if (si->demoing_p)
+ unfade_p = False;
+
+ if (unfade_p)
+ {
+ Window *current_windows = (Window *)
+ calloc(sizeof(Window), si->nscreens);
+
+ for (i = 0; i < si->nscreens; i++)
+ {
+ saver_screen_info *ssi = &si->screens[i];
+ current_windows[i] = ssi->screensaver_window;
+ /* Ensure that the default background of the window is really black,
+ not a pixmap or something. (This does not clear the window.) */
+ XSetWindowBackground (si->dpy, ssi->screensaver_window,
+ ssi->black_pixel);
+ }
+
+ if (p->verbose_p) fprintf (stderr, "%s: unfading...\n", blurb());
+
+
+ XSync (si->dpy, False);
+ XGrabServer (si->dpy); /* ############ DANGER! */
+ XSync (si->dpy, False);
+
+ /* Clear the stderr layer on each screen.
+ */
+ for (i = 0; i < si->nscreens; i++)
+ {
+ saver_screen_info *ssi = &si->screens[i];
+ clear_stderr (ssi);
+ }
+
+ XUngrabServer (si->dpy);
+ XSync (si->dpy, False); /* ###### (danger over) */
+
+ fade_screens (si->dpy, 0,
+ current_windows, si->nscreens,
+ p->fade_seconds/1000, p->fade_ticks,
+ False, False);
+
+ free(current_windows);
+ current_windows = 0;
+
+ if (p->verbose_p) fprintf (stderr, "%s: unfading done.\n", blurb());