4 * Copyright 2001 Sun Microsystems Inc.
6 * Erwann Chenede <erwann.chenede@sun.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
26 #include "gdkscreen-x11.h"
27 #include "gdkdisplay-x11.h"
28 #include "gdkprivate-x11.h"
35 #include <X11/Xatom.h>
37 #ifdef HAVE_SOLARIS_XINERAMA
38 #include <X11/extensions/xinerama.h>
40 #ifdef HAVE_XFREE_XINERAMA
41 #include <X11/extensions/Xinerama.h>
45 #include <X11/extensions/Xrandr.h>
49 #include <X11/extensions/Xfixes.h>
52 #include "gdksettings.c"
54 static void gdk_x11_screen_dispose (GObject *object);
55 static void gdk_x11_screen_finalize (GObject *object);
56 static void init_randr_support (GdkScreen *screen);
57 static void deinit_multihead (GdkScreen *screen);
61 WINDOW_MANAGER_CHANGED,
65 static guint signals[LAST_SIGNAL] = { 0 };
67 G_DEFINE_TYPE (GdkX11Screen, gdk_x11_screen, GDK_TYPE_SCREEN)
69 typedef struct _NetWmSupportedAtoms NetWmSupportedAtoms;
71 struct _NetWmSupportedAtoms
79 GdkRectangle geometry;
89 gdk_x11_screen_init (GdkX11Screen *screen)
94 gdk_x11_screen_get_display (GdkScreen *screen)
96 g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
98 return GDK_X11_SCREEN (screen)->display;
102 gdk_x11_screen_get_width (GdkScreen *screen)
104 g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
106 return WidthOfScreen (GDK_X11_SCREEN (screen)->xscreen);
110 gdk_x11_screen_get_height (GdkScreen *screen)
112 g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
114 return HeightOfScreen (GDK_X11_SCREEN (screen)->xscreen);
118 gdk_x11_screen_get_width_mm (GdkScreen *screen)
120 g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
122 return WidthMMOfScreen (GDK_X11_SCREEN (screen)->xscreen);
126 gdk_x11_screen_get_height_mm (GdkScreen *screen)
128 g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
130 return HeightMMOfScreen (GDK_X11_SCREEN (screen)->xscreen);
134 gdk_x11_screen_get_number (GdkScreen *screen)
136 g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
138 return GDK_X11_SCREEN (screen)->screen_num;
142 gdk_x11_screen_get_root_window (GdkScreen *screen)
144 g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
146 return GDK_X11_SCREEN (screen)->root_window;
150 _gdk_x11_screen_events_uninit (GdkScreen *screen)
152 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
154 if (x11_screen->xsettings_client)
156 xsettings_client_destroy (x11_screen->xsettings_client);
157 x11_screen->xsettings_client = NULL;
162 gdk_x11_screen_dispose (GObject *object)
164 GdkX11Screen *x11_screen = GDK_X11_SCREEN (object);
167 for (i = 0; i < 32; ++i)
169 if (x11_screen->subwindow_gcs[i])
171 XFreeGC (x11_screen->xdisplay, x11_screen->subwindow_gcs[i]);
172 x11_screen->subwindow_gcs[i] = 0;
176 _gdk_x11_screen_events_uninit (GDK_SCREEN (object));
178 if (x11_screen->root_window)
179 _gdk_window_destroy (x11_screen->root_window, TRUE);
181 G_OBJECT_CLASS (gdk_x11_screen_parent_class)->dispose (object);
183 x11_screen->xdisplay = NULL;
184 x11_screen->xscreen = NULL;
185 x11_screen->screen_num = -1;
186 x11_screen->xroot_window = None;
187 x11_screen->wmspec_check_window = None;
191 gdk_x11_screen_finalize (GObject *object)
193 GdkX11Screen *x11_screen = GDK_X11_SCREEN (object);
196 if (x11_screen->root_window)
197 g_object_unref (x11_screen->root_window);
200 for (i = 0; i < x11_screen->nvisuals; i++)
201 g_object_unref (x11_screen->visuals[i]);
202 g_free (x11_screen->visuals);
203 g_hash_table_destroy (x11_screen->visual_hash);
205 g_free (x11_screen->window_manager_name);
207 deinit_multihead (GDK_SCREEN (object));
209 G_OBJECT_CLASS (gdk_x11_screen_parent_class)->finalize (object);
213 gdk_x11_screen_get_n_monitors (GdkScreen *screen)
215 g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
217 return GDK_X11_SCREEN (screen)->n_monitors;
221 gdk_x11_screen_get_primary_monitor (GdkScreen *screen)
223 g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
225 return GDK_X11_SCREEN (screen)->primary_monitor;
229 gdk_x11_screen_get_monitor_width_mm (GdkScreen *screen,
232 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
234 g_return_val_if_fail (GDK_IS_SCREEN (screen), -1);
235 g_return_val_if_fail (monitor_num >= 0, -1);
236 g_return_val_if_fail (monitor_num < x11_screen->n_monitors, -1);
238 return x11_screen->monitors[monitor_num].width_mm;
242 gdk_x11_screen_get_monitor_height_mm (GdkScreen *screen,
245 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
247 g_return_val_if_fail (GDK_IS_SCREEN (screen), -1);
248 g_return_val_if_fail (monitor_num >= 0, -1);
249 g_return_val_if_fail (monitor_num < x11_screen->n_monitors, -1);
251 return x11_screen->monitors[monitor_num].height_mm;
255 gdk_x11_screen_get_monitor_plug_name (GdkScreen *screen,
258 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
260 g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
261 g_return_val_if_fail (monitor_num >= 0, NULL);
262 g_return_val_if_fail (monitor_num < x11_screen->n_monitors, NULL);
264 return g_strdup (x11_screen->monitors[monitor_num].output_name);
268 * gdk_x11_screen_get_monitor_output: (skip)
269 * @screen: a #GdkScreen
270 * @monitor_num: number of the monitor, between 0 and gdk_screen_get_n_monitors (screen)
272 * Gets the XID of the specified output/monitor.
273 * If the X server does not support version 1.2 of the RANDR
274 * extension, 0 is returned.
276 * Returns: the XID of the monitor
281 gdk_x11_screen_get_monitor_output (GdkScreen *screen,
284 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
286 g_return_val_if_fail (GDK_IS_SCREEN (screen), None);
287 g_return_val_if_fail (monitor_num >= 0, None);
288 g_return_val_if_fail (monitor_num < x11_screen->n_monitors, None);
290 return x11_screen->monitors[monitor_num].output;
294 gdk_x11_screen_get_monitor_geometry (GdkScreen *screen,
298 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
300 g_return_if_fail (GDK_IS_SCREEN (screen));
301 g_return_if_fail (monitor_num >= 0);
302 g_return_if_fail (monitor_num < x11_screen->n_monitors);
305 *dest = x11_screen->monitors[monitor_num].geometry;
309 gdk_x11_screen_get_rgba_visual (GdkScreen *screen)
311 GdkX11Screen *x11_screen;
313 g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
315 x11_screen = GDK_X11_SCREEN (screen);
317 return x11_screen->rgba_visual;
321 * gdk_x11_screen_get_xscreen:
322 * @screen: a #GdkScreen.
323 * @returns: (transfer none): an Xlib <type>Screen*</type>
325 * Returns the screen of a #GdkScreen.
330 gdk_x11_screen_get_xscreen (GdkScreen *screen)
332 return GDK_X11_SCREEN (screen)->xscreen;
336 * gdk_x11_screen_get_screen_number:
337 * @screen: a #GdkScreen.
338 * @returns: the position of @screen among the screens of
341 * Returns the index of a #GdkScreen.
346 gdk_x11_screen_get_screen_number (GdkScreen *screen)
348 return GDK_X11_SCREEN (screen)->screen_num;
352 check_is_composited (GdkDisplay *display,
353 GdkX11Screen *x11_screen)
355 Atom xselection = gdk_x11_atom_to_xatom_for_display (display, x11_screen->cm_selection_atom);
358 xwindow = XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), xselection);
360 return xwindow != None;
364 make_cm_atom (int screen_number)
366 gchar *name = g_strdup_printf ("_NET_WM_CM_S%d", screen_number);
367 GdkAtom atom = gdk_atom_intern (name, FALSE);
373 init_monitor_geometry (GdkX11Monitor *monitor,
374 int x, int y, int width, int height)
376 monitor->geometry.x = x;
377 monitor->geometry.y = y;
378 monitor->geometry.width = width;
379 monitor->geometry.height = height;
381 monitor->output = None;
382 monitor->width_mm = -1;
383 monitor->height_mm = -1;
384 monitor->output_name = NULL;
385 monitor->manufacturer = NULL;
389 init_fake_xinerama (GdkScreen *screen)
391 #ifdef G_ENABLE_DEBUG
392 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
393 XSetWindowAttributes atts;
397 if (!(_gdk_debug_flags & GDK_DEBUG_XINERAMA))
400 /* Fake Xinerama mode by splitting the screen into 4 monitors.
401 * Also draw a little cross to make the monitor boundaries visible.
403 w = WidthOfScreen (x11_screen->xscreen);
404 h = HeightOfScreen (x11_screen->xscreen);
406 x11_screen->n_monitors = 4;
407 x11_screen->monitors = g_new0 (GdkX11Monitor, 4);
408 init_monitor_geometry (&x11_screen->monitors[0], 0, 0, w / 2, h / 2);
409 init_monitor_geometry (&x11_screen->monitors[1], w / 2, 0, w / 2, h / 2);
410 init_monitor_geometry (&x11_screen->monitors[2], 0, h / 2, w / 2, h / 2);
411 init_monitor_geometry (&x11_screen->monitors[3], w / 2, h / 2, w / 2, h / 2);
413 atts.override_redirect = 1;
414 atts.background_pixel = WhitePixel(GDK_SCREEN_XDISPLAY (screen),
415 x11_screen->screen_num);
416 win = XCreateWindow(GDK_SCREEN_XDISPLAY (screen),
417 x11_screen->xroot_window, 0, h / 2, w, 1, 0,
418 DefaultDepth(GDK_SCREEN_XDISPLAY (screen),
419 x11_screen->screen_num),
421 DefaultVisual(GDK_SCREEN_XDISPLAY (screen),
422 x11_screen->screen_num),
423 CWOverrideRedirect|CWBackPixel,
425 XMapRaised(GDK_SCREEN_XDISPLAY (screen), win);
426 win = XCreateWindow(GDK_SCREEN_XDISPLAY (screen),
427 x11_screen->xroot_window, w/2 , 0, 1, h, 0,
428 DefaultDepth(GDK_SCREEN_XDISPLAY (screen),
429 x11_screen->screen_num),
431 DefaultVisual(GDK_SCREEN_XDISPLAY (screen),
432 x11_screen->screen_num),
433 CWOverrideRedirect|CWBackPixel,
435 XMapRaised(GDK_SCREEN_XDISPLAY (screen), win);
443 free_monitors (GdkX11Monitor *monitors,
448 for (i = 0; i < n_monitors; ++i)
450 g_free (monitors[i].output_name);
451 g_free (monitors[i].manufacturer);
459 monitor_compare_function (GdkX11Monitor *monitor1,
460 GdkX11Monitor *monitor2)
462 /* Sort the leftmost/topmost monitors first.
463 * For "cloned" monitors, sort the bigger ones first
464 * (giving preference to taller monitors over wider
468 if (monitor1->geometry.x != monitor2->geometry.x)
469 return monitor1->geometry.x - monitor2->geometry.x;
471 if (monitor1->geometry.y != monitor2->geometry.y)
472 return monitor1->geometry.y - monitor2->geometry.y;
474 if (monitor1->geometry.height != monitor2->geometry.height)
475 return - (monitor1->geometry.height - monitor2->geometry.height);
477 if (monitor1->geometry.width != monitor2->geometry.width)
478 return - (monitor1->geometry.width - monitor2->geometry.width);
485 init_randr13 (GdkScreen *screen)
488 GdkDisplay *display = gdk_screen_get_display (screen);
489 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
490 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
491 Display *dpy = GDK_SCREEN_XDISPLAY (screen);
492 XRRScreenResources *resources;
493 RROutput primary_output;
494 RROutput first_output = None;
497 gboolean randr12_compat = FALSE;
499 if (!display_x11->have_randr13)
502 resources = XRRGetScreenResourcesCurrent (x11_screen->xdisplay,
503 x11_screen->xroot_window);
507 monitors = g_array_sized_new (FALSE, TRUE, sizeof (GdkX11Monitor),
510 for (i = 0; i < resources->noutput; ++i)
512 XRROutputInfo *output =
513 XRRGetOutputInfo (dpy, resources, resources->outputs[i]);
515 /* Non RandR1.2 X driver have output name "default" */
516 randr12_compat |= !g_strcmp0 (output->name, "default");
518 if (output->connection == RR_Disconnected)
520 XRRFreeOutputInfo (output);
526 GdkX11Monitor monitor;
527 XRRCrtcInfo *crtc = XRRGetCrtcInfo (dpy, resources, output->crtc);
529 monitor.geometry.x = crtc->x;
530 monitor.geometry.y = crtc->y;
531 monitor.geometry.width = crtc->width;
532 monitor.geometry.height = crtc->height;
534 monitor.output = resources->outputs[i];
535 monitor.width_mm = output->mm_width;
536 monitor.height_mm = output->mm_height;
537 monitor.output_name = g_strdup (output->name);
538 /* FIXME: need EDID parser */
539 monitor.manufacturer = NULL;
541 g_array_append_val (monitors, monitor);
543 XRRFreeCrtcInfo (crtc);
546 XRRFreeOutputInfo (output);
549 if (resources->noutput > 0)
550 first_output = resources->outputs[0];
552 XRRFreeScreenResources (resources);
554 /* non RandR 1.2 X driver doesn't return any usable multihead data */
557 guint n_monitors = monitors->len;
559 free_monitors ((GdkX11Monitor *)g_array_free (monitors, FALSE),
565 g_array_sort (monitors,
566 (GCompareFunc) monitor_compare_function);
567 x11_screen->n_monitors = monitors->len;
568 x11_screen->monitors = (GdkX11Monitor *)g_array_free (monitors, FALSE);
570 x11_screen->primary_monitor = 0;
572 primary_output = XRRGetOutputPrimary (x11_screen->xdisplay,
573 x11_screen->xroot_window);
575 for (i = 0; i < x11_screen->n_monitors; ++i)
577 if (x11_screen->monitors[i].output == primary_output)
579 x11_screen->primary_monitor = i;
583 /* No RandR1.3+ available or no primary set, fall back to prefer LVDS as primary if present */
584 if (primary_output == None &&
585 g_ascii_strncasecmp (x11_screen->monitors[i].output_name, "LVDS", 4) == 0)
587 x11_screen->primary_monitor = i;
591 /* No primary specified and no LVDS found */
592 if (x11_screen->monitors[i].output == first_output)
593 x11_screen->primary_monitor = i;
596 return x11_screen->n_monitors > 0;
603 init_solaris_xinerama (GdkScreen *screen)
605 #ifdef HAVE_SOLARIS_XINERAMA
606 Display *dpy = GDK_SCREEN_XDISPLAY (screen);
607 int screen_no = gdk_screen_get_number (screen);
608 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
609 XRectangle monitors[MAXFRAMEBUFFERS];
610 unsigned char hints[16];
615 if (!XineramaGetState (dpy, screen_no))
618 result = XineramaGetInfo (dpy, screen_no, monitors, hints, &n_monitors);
620 /* Yes I know it should be Success but the current implementation
621 * returns the num of monitor
628 x11_screen->monitors = g_new0 (GdkX11Monitor, n_monitors);
629 x11_screen->n_monitors = n_monitors;
631 for (i = 0; i < n_monitors; i++)
633 init_monitor_geometry (&x11_screen->monitors[i],
634 monitors[i].x, monitors[i].y,
635 monitors[i].width, monitors[i].height);
638 x11_screen->primary_monitor = 0;
641 #endif /* HAVE_SOLARIS_XINERAMA */
647 init_xfree_xinerama (GdkScreen *screen)
649 #ifdef HAVE_XFREE_XINERAMA
650 Display *dpy = GDK_SCREEN_XDISPLAY (screen);
651 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
652 XineramaScreenInfo *monitors;
655 if (!XineramaIsActive (dpy))
658 monitors = XineramaQueryScreens (dpy, &n_monitors);
660 if (n_monitors <= 0 || monitors == NULL)
662 /* If Xinerama doesn't think we have any monitors, try acting as
663 * though we had no Xinerama. If the "no monitors" condition
664 * is because XRandR 1.2 is currently switching between CRTCs,
665 * we'll be notified again when we have our monitor back,
666 * and can go back into Xinerama-ish mode at that point.
674 x11_screen->n_monitors = n_monitors;
675 x11_screen->monitors = g_new0 (GdkX11Monitor, n_monitors);
677 for (i = 0; i < n_monitors; ++i)
679 init_monitor_geometry (&x11_screen->monitors[i],
680 monitors[i].x_org, monitors[i].y_org,
681 monitors[i].width, monitors[i].height);
686 x11_screen->primary_monitor = 0;
689 #endif /* HAVE_XFREE_XINERAMA */
695 deinit_multihead (GdkScreen *screen)
697 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
699 free_monitors (x11_screen->monitors, x11_screen->n_monitors);
701 x11_screen->n_monitors = 0;
702 x11_screen->monitors = NULL;
706 compare_monitor (GdkX11Monitor *m1,
709 if (m1->geometry.x != m2->geometry.x ||
710 m1->geometry.y != m2->geometry.y ||
711 m1->geometry.width != m2->geometry.width ||
712 m1->geometry.height != m2->geometry.height)
715 if (m1->width_mm != m2->width_mm ||
716 m1->height_mm != m2->height_mm)
719 if (g_strcmp0 (m1->output_name, m2->output_name) != 0)
722 if (g_strcmp0 (m1->manufacturer, m2->manufacturer) != 0)
729 compare_monitors (GdkX11Monitor *monitors1, gint n_monitors1,
730 GdkX11Monitor *monitors2, gint n_monitors2)
734 if (n_monitors1 != n_monitors2)
737 for (i = 0; i < n_monitors1; i++)
739 if (!compare_monitor (monitors1 + i, monitors2 + i))
747 init_multihead (GdkScreen *screen)
749 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
750 int opcode, firstevent, firsterror;
752 /* There are four different implementations of multihead support:
754 * 1. Fake Xinerama for debugging purposes
756 * 3. Solaris Xinerama
757 * 4. XFree86/Xorg Xinerama
759 * We use them in that order.
761 if (init_fake_xinerama (screen))
764 if (init_randr13 (screen))
767 if (XQueryExtension (GDK_SCREEN_XDISPLAY (screen), "XINERAMA",
768 &opcode, &firstevent, &firsterror))
770 if (init_solaris_xinerama (screen))
773 if (init_xfree_xinerama (screen))
777 /* No multihead support of any kind for this screen */
778 x11_screen->n_monitors = 1;
779 x11_screen->monitors = g_new0 (GdkX11Monitor, 1);
780 x11_screen->primary_monitor = 0;
782 init_monitor_geometry (x11_screen->monitors, 0, 0,
783 WidthOfScreen (x11_screen->xscreen),
784 HeightOfScreen (x11_screen->xscreen));
788 _gdk_x11_screen_new (GdkDisplay *display,
792 GdkX11Screen *x11_screen;
793 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
795 screen = g_object_new (GDK_TYPE_X11_SCREEN, NULL);
797 x11_screen = GDK_X11_SCREEN (screen);
798 x11_screen->display = display;
799 x11_screen->xdisplay = display_x11->xdisplay;
800 x11_screen->xscreen = ScreenOfDisplay (display_x11->xdisplay, screen_number);
801 x11_screen->screen_num = screen_number;
802 x11_screen->xroot_window = RootWindow (display_x11->xdisplay,screen_number);
803 x11_screen->wmspec_check_window = None;
804 /* we want this to be always non-null */
805 x11_screen->window_manager_name = g_strdup ("unknown");
807 init_multihead (screen);
808 init_randr_support (screen);
810 _gdk_x11_screen_init_visuals (screen);
811 _gdk_x11_screen_init_root_window (screen);
817 * It is important that we first request the selection
818 * notification, and then setup the initial state of
819 * is_composited to avoid a race condition here.
822 _gdk_x11_screen_setup (GdkScreen *screen)
824 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
826 x11_screen->cm_selection_atom = make_cm_atom (x11_screen->screen_num);
827 gdk_display_request_selection_notification (x11_screen->display,
828 x11_screen->cm_selection_atom);
829 x11_screen->is_composited = check_is_composited (x11_screen->display, x11_screen);
833 gdk_x11_screen_is_composited (GdkScreen *screen)
835 GdkX11Screen *x11_screen;
837 g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
839 x11_screen = GDK_X11_SCREEN (screen);
841 return x11_screen->is_composited;
845 init_randr_support (GdkScreen *screen)
847 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
849 XSelectInput (GDK_SCREEN_XDISPLAY (screen),
850 x11_screen->xroot_window,
851 StructureNotifyMask);
854 if (!GDK_X11_DISPLAY (gdk_screen_get_display (screen))->have_randr12)
857 XRRSelectInput (GDK_SCREEN_XDISPLAY (screen),
858 x11_screen->xroot_window,
859 RRScreenChangeNotifyMask
860 | RRCrtcChangeNotifyMask
861 | RROutputPropertyNotifyMask);
866 process_monitors_change (GdkScreen *screen)
868 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
870 GdkX11Monitor *monitors;
873 n_monitors = x11_screen->n_monitors;
874 monitors = x11_screen->monitors;
876 x11_screen->n_monitors = 0;
877 x11_screen->monitors = NULL;
879 init_multihead (screen);
881 changed = !compare_monitors (monitors, n_monitors,
882 x11_screen->monitors, x11_screen->n_monitors);
884 free_monitors (monitors, n_monitors);
887 g_signal_emit_by_name (screen, "monitors-changed");
891 _gdk_x11_screen_size_changed (GdkScreen *screen,
896 GdkX11Display *display_x11;
899 width = gdk_screen_get_width (screen);
900 height = gdk_screen_get_height (screen);
903 display_x11 = GDK_X11_DISPLAY (gdk_screen_get_display (screen));
905 if (display_x11->have_randr13 && event->type == ConfigureNotify)
907 g_signal_emit_by_name (screen, "monitors-changed");
911 XRRUpdateConfiguration (event);
913 if (event->type == ConfigureNotify)
915 XConfigureEvent *rcevent = (XConfigureEvent *) event;
916 Screen *xscreen = gdk_x11_screen_get_xscreen (screen);
918 xscreen->width = rcevent->width;
919 xscreen->height = rcevent->height;
925 process_monitors_change (screen);
927 if (width != gdk_screen_get_width (screen) ||
928 height != gdk_screen_get_height (screen))
929 g_signal_emit_by_name (screen, "size-changed");
933 _gdk_x11_screen_window_manager_changed (GdkScreen *screen)
935 g_signal_emit (screen, signals[WINDOW_MANAGER_CHANGED], 0);
939 _gdk_x11_screen_process_owner_change (GdkScreen *screen,
943 XFixesSelectionNotifyEvent *selection_event = (XFixesSelectionNotifyEvent *)event;
944 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
945 Atom xcm_selection_atom = gdk_x11_atom_to_xatom_for_display (x11_screen->display,
946 x11_screen->cm_selection_atom);
948 if (selection_event->selection == xcm_selection_atom)
950 gboolean composited = selection_event->owner != None;
952 if (composited != x11_screen->is_composited)
954 x11_screen->is_composited = composited;
956 g_signal_emit_by_name (screen, "composited-changed");
963 substitute_screen_number (const gchar *display_name,
969 str = g_string_new (display_name);
971 p = strrchr (str->str, '.');
972 if (p && p > strchr (str->str, ':'))
973 g_string_truncate (str, p - str->str);
975 g_string_append_printf (str, ".%d", screen_number);
977 return g_string_free (str, FALSE);
981 gdk_x11_screen_make_display_name (GdkScreen *screen)
983 const gchar *old_display;
985 g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
987 old_display = gdk_display_get_name (gdk_screen_get_display (screen));
989 return substitute_screen_number (old_display,
990 gdk_screen_get_number (screen));
994 gdk_x11_screen_get_active_window (GdkScreen *screen)
996 GdkX11Screen *x11_screen;
997 GdkWindow *ret = NULL;
1000 gulong nitems_return;
1001 gulong bytes_after_return;
1002 guchar *data = NULL;
1004 g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
1006 if (!gdk_x11_screen_supports_net_wm_hint (screen,
1007 gdk_atom_intern_static_string ("_NET_ACTIVE_WINDOW")))
1010 x11_screen = GDK_X11_SCREEN (screen);
1012 if (XGetWindowProperty (x11_screen->xdisplay, x11_screen->xroot_window,
1013 gdk_x11_get_xatom_by_name_for_display (x11_screen->display,
1014 "_NET_ACTIVE_WINDOW"),
1015 0, 1, False, XA_WINDOW, &type_return,
1016 &format_return, &nitems_return,
1017 &bytes_after_return, &data)
1020 if ((type_return == XA_WINDOW) && (format_return == 32) && (data))
1022 Window window = *(Window *) data;
1026 ret = gdk_x11_window_foreign_new_for_display (x11_screen->display,
1039 gdk_x11_screen_get_window_stack (GdkScreen *screen)
1041 GdkX11Screen *x11_screen;
1045 gulong nitems_return;
1046 gulong bytes_after_return;
1047 guchar *data = NULL;
1049 g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
1051 if (!gdk_x11_screen_supports_net_wm_hint (screen,
1052 gdk_atom_intern_static_string ("_NET_CLIENT_LIST_STACKING")))
1055 x11_screen = GDK_X11_SCREEN (screen);
1057 if (XGetWindowProperty (x11_screen->xdisplay, x11_screen->xroot_window,
1058 gdk_x11_get_xatom_by_name_for_display (x11_screen->display,
1059 "_NET_CLIENT_LIST_STACKING"),
1060 0, G_MAXLONG, False, XA_WINDOW, &type_return,
1061 &format_return, &nitems_return,
1062 &bytes_after_return, &data)
1065 if ((type_return == XA_WINDOW) && (format_return == 32) &&
1066 (data) && (nitems_return > 0))
1068 gulong *stack = (gulong *) data;
1072 for (i = 0; i < nitems_return; i++)
1074 win = gdk_x11_window_foreign_new_for_display (x11_screen->display,
1078 ret = g_list_append (ret, win);
1089 /* Sends a ClientMessage to all toplevel client windows */
1091 gdk_event_send_client_message_to_all_recurse (GdkDisplay *display,
1098 unsigned long nitems, after;
1099 unsigned char *data;
1100 Window *ret_children, ret_root, ret_parent;
1101 unsigned int ret_nchildren;
1102 gboolean send = FALSE;
1103 gboolean found = FALSE;
1104 gboolean result = FALSE;
1107 gdk_x11_display_error_trap_push (display);
1109 if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), xid,
1110 gdk_x11_get_xatom_by_name_for_display (display, "WM_STATE"),
1111 0, 0, False, AnyPropertyType,
1112 &type, &format, &nitems, &after, &data) != Success)
1122 /* OK, we're all set, now let's find some windows to send this to */
1123 if (!XQueryTree (GDK_DISPLAY_XDISPLAY (display), xid,
1124 &ret_root, &ret_parent,
1125 &ret_children, &ret_nchildren))
1128 for(i = 0; i < ret_nchildren; i++)
1129 if (gdk_event_send_client_message_to_all_recurse (display, xev, ret_children[i], level + 1))
1132 XFree (ret_children);
1135 if (send || (!found && (level == 1)))
1137 xev->xclient.window = xid;
1138 _gdk_x11_display_send_xevent (display, xid, False, NoEventMask, xev);
1141 result = send || found;
1144 gdk_x11_display_error_trap_pop_ignored (display);
1150 gdk_x11_screen_broadcast_client_message (GdkScreen *screen,
1154 GdkWindow *root_window;
1156 g_return_if_fail (event != NULL);
1158 root_window = gdk_screen_get_root_window (screen);
1160 /* Set up our event to send, with the exception of its target window */
1161 sev.xclient.type = ClientMessage;
1162 sev.xclient.display = GDK_WINDOW_XDISPLAY (root_window);
1163 sev.xclient.format = event->client.data_format;
1164 memcpy(&sev.xclient.data, &event->client.data, sizeof (sev.xclient.data));
1165 sev.xclient.message_type =
1166 gdk_x11_atom_to_xatom_for_display (GDK_WINDOW_DISPLAY (root_window),
1167 event->client.message_type);
1169 gdk_event_send_client_message_to_all_recurse (gdk_screen_get_display (screen),
1171 GDK_WINDOW_XID (root_window),
1176 check_transform (const gchar *xsettings_name,
1180 if (!g_value_type_transformable (src_type, dest_type))
1182 g_warning ("Cannot transform xsetting %s of type %s to type %s\n",
1184 g_type_name (src_type),
1185 g_type_name (dest_type));
1193 gdk_x11_screen_get_setting (GdkScreen *screen,
1198 const char *xsettings_name = NULL;
1199 XSettingsResult result;
1200 XSettingsSetting *setting = NULL;
1201 GdkX11Screen *x11_screen;
1202 gboolean success = FALSE;
1204 GValue tmp_val = { 0, };
1206 g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
1208 x11_screen = GDK_X11_SCREEN (screen);
1210 for (i = 0; i < GDK_SETTINGS_N_ELEMENTS(); i++)
1211 if (strcmp (GDK_SETTINGS_GDK_NAME (i), name) == 0)
1213 xsettings_name = GDK_SETTINGS_X_NAME (i);
1217 if (!xsettings_name)
1220 result = xsettings_client_get_setting (x11_screen->xsettings_client,
1221 xsettings_name, &setting);
1222 if (result != XSETTINGS_SUCCESS)
1225 switch (setting->type)
1227 case XSETTINGS_TYPE_INT:
1228 if (check_transform (xsettings_name, G_TYPE_INT, G_VALUE_TYPE (value)))
1230 g_value_init (&tmp_val, G_TYPE_INT);
1231 g_value_set_int (&tmp_val, setting->data.v_int);
1232 g_value_transform (&tmp_val, value);
1237 case XSETTINGS_TYPE_STRING:
1238 if (check_transform (xsettings_name, G_TYPE_STRING, G_VALUE_TYPE (value)))
1240 g_value_init (&tmp_val, G_TYPE_STRING);
1241 g_value_set_string (&tmp_val, setting->data.v_string);
1242 g_value_transform (&tmp_val, value);
1247 case XSETTINGS_TYPE_COLOR:
1248 if (!check_transform (xsettings_name, GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
1252 g_value_init (&tmp_val, GDK_TYPE_COLOR);
1255 color.red = setting->data.v_color.red;
1256 color.green = setting->data.v_color.green;
1257 color.blue = setting->data.v_color.blue;
1259 g_value_set_boxed (&tmp_val, &color);
1261 g_value_transform (&tmp_val, value);
1268 g_value_unset (&tmp_val);
1272 xsettings_setting_free (setting);
1277 return _gdk_x11_get_xft_setting (screen, name, value);
1281 cleanup_atoms(gpointer data)
1283 NetWmSupportedAtoms *supported_atoms = data;
1284 if (supported_atoms->atoms)
1285 XFree (supported_atoms->atoms);
1286 g_free (supported_atoms);
1290 fetch_net_wm_check_window (GdkScreen *screen)
1292 GdkX11Screen *x11_screen;
1293 GdkDisplay *display;
1303 x11_screen = GDK_X11_SCREEN (screen);
1304 display = x11_screen->display;
1306 g_return_if_fail (GDK_X11_DISPLAY (display)->trusted_client);
1308 g_get_current_time (&tv);
1310 if (ABS (tv.tv_sec - x11_screen->last_wmspec_check_time) < 15)
1311 return; /* we've checked recently */
1313 x11_screen->last_wmspec_check_time = tv.tv_sec;
1316 XGetWindowProperty (x11_screen->xdisplay, x11_screen->xroot_window,
1317 gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTING_WM_CHECK"),
1318 0, G_MAXLONG, False, XA_WINDOW, &type, &format,
1319 &n_items, &bytes_after, &data);
1321 if (type != XA_WINDOW)
1328 xwindow = (Window *)data;
1330 if (x11_screen->wmspec_check_window == *xwindow)
1336 gdk_x11_display_error_trap_push (display);
1338 /* Find out if this WM goes away, so we can reset everything. */
1339 XSelectInput (x11_screen->xdisplay, *xwindow, StructureNotifyMask);
1341 error = gdk_x11_display_error_trap_pop (display);
1344 x11_screen->wmspec_check_window = *xwindow;
1345 x11_screen->need_refetch_net_supported = TRUE;
1346 x11_screen->need_refetch_wm_name = TRUE;
1348 /* Careful, reentrancy */
1349 _gdk_x11_screen_window_manager_changed (GDK_SCREEN (x11_screen));
1351 else if (error == BadWindow)
1353 /* Leftover property, try again immediately, new wm may be starting up */
1354 x11_screen->last_wmspec_check_time = 0;
1361 * gdk_x11_screen_supports_net_wm_hint:
1362 * @screen: the relevant #GdkScreen.
1363 * @property: a property atom.
1365 * This function is specific to the X11 backend of GDK, and indicates
1366 * whether the window manager supports a certain hint from the
1367 * Extended Window Manager Hints Specification. You can find this
1369 * <ulink url="http://www.freedesktop.org">http://www.freedesktop.org</ulink>.
1371 * When using this function, keep in mind that the window manager
1372 * can change over time; so you shouldn't use this function in
1373 * a way that impacts persistent application state. A common bug
1374 * is that your application can start up before the window manager
1375 * does when the user logs in, and before the window manager starts
1376 * gdk_x11_screen_supports_net_wm_hint() will return %FALSE for every property.
1377 * You can monitor the window_manager_changed signal on #GdkScreen to detect
1378 * a window manager change.
1380 * Return value: %TRUE if the window manager supports @property
1385 gdk_x11_screen_supports_net_wm_hint (GdkScreen *screen,
1389 GdkX11Screen *x11_screen;
1390 NetWmSupportedAtoms *supported_atoms;
1391 GdkDisplay *display;
1393 g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
1395 x11_screen = GDK_X11_SCREEN (screen);
1396 display = x11_screen->display;
1398 if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1401 supported_atoms = g_object_get_data (G_OBJECT (screen), "gdk-net-wm-supported-atoms");
1402 if (!supported_atoms)
1404 supported_atoms = g_new0 (NetWmSupportedAtoms, 1);
1405 g_object_set_data_full (G_OBJECT (screen), "gdk-net-wm-supported-atoms", supported_atoms, cleanup_atoms);
1408 fetch_net_wm_check_window (screen);
1410 if (x11_screen->wmspec_check_window == None)
1413 if (x11_screen->need_refetch_net_supported)
1415 /* WM has changed since we last got the supported list,
1422 x11_screen->need_refetch_net_supported = FALSE;
1424 if (supported_atoms->atoms)
1425 XFree (supported_atoms->atoms);
1427 supported_atoms->atoms = NULL;
1428 supported_atoms->n_atoms = 0;
1430 XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), x11_screen->xroot_window,
1431 gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTED"),
1432 0, G_MAXLONG, False, XA_ATOM, &type, &format,
1433 &supported_atoms->n_atoms, &bytes_after,
1434 (guchar **)&supported_atoms->atoms);
1436 if (type != XA_ATOM)
1440 if (supported_atoms->atoms == NULL)
1444 while (i < supported_atoms->n_atoms)
1446 if (supported_atoms->atoms[i] == gdk_x11_atom_to_xatom_for_display (display, property))
1456 refcounted_grab_server (Display *xdisplay)
1458 GdkDisplay *display = gdk_x11_lookup_xdisplay (xdisplay);
1460 gdk_x11_display_grab (display);
1464 refcounted_ungrab_server (Display *xdisplay)
1466 GdkDisplay *display = gdk_x11_lookup_xdisplay (xdisplay);
1468 gdk_x11_display_ungrab (display);
1471 static GdkFilterReturn
1472 gdk_xsettings_client_event_filter (GdkXEvent *xevent,
1476 GdkX11Screen *screen = data;
1478 if (xsettings_client_process_event (screen->xsettings_client, (XEvent *)xevent))
1479 return GDK_FILTER_REMOVE;
1481 return GDK_FILTER_CONTINUE;
1485 gdk_xsettings_watch_cb (Window window,
1491 GdkScreen *screen = cb_data;
1493 gdkwin = gdk_x11_window_lookup_for_display (gdk_screen_get_display (screen), window);
1498 g_object_ref (gdkwin);
1501 gdkwin = gdk_x11_window_foreign_new_for_display (gdk_screen_get_display (screen), window);
1503 /* gdk_window_foreign_new_for_display() can fail and return NULL if the
1504 * window has already been destroyed.
1510 gdk_window_add_filter (gdkwin, gdk_xsettings_client_event_filter, screen);
1516 /* gdkwin should not be NULL here, since if starting the watch succeeded
1517 * we have a reference on the window. It might mean that the caller didn't
1518 * remove the watch when it got a DestroyNotify event. Or maybe the
1519 * caller ignored the return value when starting the watch failed.
1521 g_warning ("gdk_xsettings_watch_cb(): Couldn't find window to unwatch");
1525 gdk_window_remove_filter (gdkwin, gdk_xsettings_client_event_filter, screen);
1526 g_object_unref (gdkwin);
1533 gdk_xsettings_notify_cb (const char *name,
1534 XSettingsAction action,
1535 XSettingsSetting *setting,
1539 GdkScreen *screen = data;
1540 GdkX11Screen *x11_screen = data;
1543 if (x11_screen->xsettings_in_init)
1546 new_event.type = GDK_SETTING;
1547 new_event.setting.window = gdk_screen_get_root_window (screen);
1548 new_event.setting.send_event = FALSE;
1549 new_event.setting.name = NULL;
1551 for (i = 0; i < GDK_SETTINGS_N_ELEMENTS() ; i++)
1552 if (strcmp (GDK_SETTINGS_X_NAME (i), name) == 0)
1554 new_event.setting.name = (char*) GDK_SETTINGS_GDK_NAME (i);
1558 if (!new_event.setting.name)
1563 case XSETTINGS_ACTION_NEW:
1564 new_event.setting.action = GDK_SETTING_ACTION_NEW;
1566 case XSETTINGS_ACTION_CHANGED:
1567 new_event.setting.action = GDK_SETTING_ACTION_CHANGED;
1569 case XSETTINGS_ACTION_DELETED:
1570 new_event.setting.action = GDK_SETTING_ACTION_DELETED;
1574 gdk_event_put (&new_event);
1578 _gdk_x11_screen_init_events (GdkScreen *screen)
1580 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1582 /* Keep a flag to avoid extra notifies that we don't need
1584 x11_screen->xsettings_in_init = TRUE;
1585 x11_screen->xsettings_client = xsettings_client_new_with_grab_funcs (x11_screen->xdisplay,
1586 x11_screen->screen_num,
1587 gdk_xsettings_notify_cb,
1588 gdk_xsettings_watch_cb,
1590 refcounted_grab_server,
1591 refcounted_ungrab_server);
1592 x11_screen->xsettings_in_init = FALSE;
1596 * gdk_x11_screen_get_window_manager_name:
1597 * @screen: a #GdkScreen
1599 * Returns the name of the window manager for @screen.
1601 * Return value: the name of the window manager screen @screen, or
1602 * "unknown" if the window manager is unknown. The string is owned by GDK
1603 * and should not be freed.
1608 gdk_x11_screen_get_window_manager_name (GdkScreen *screen)
1610 GdkX11Screen *x11_screen;
1611 GdkDisplay *display;
1613 x11_screen = GDK_X11_SCREEN (screen);
1614 display = x11_screen->display;
1616 if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1617 return x11_screen->window_manager_name;
1619 fetch_net_wm_check_window (screen);
1621 if (x11_screen->need_refetch_wm_name)
1623 /* Get the name of the window manager */
1624 x11_screen->need_refetch_wm_name = FALSE;
1626 g_free (x11_screen->window_manager_name);
1627 x11_screen->window_manager_name = g_strdup ("unknown");
1629 if (x11_screen->wmspec_check_window != None)
1639 gdk_x11_display_error_trap_push (display);
1641 XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
1642 x11_screen->wmspec_check_window,
1643 gdk_x11_get_xatom_by_name_for_display (display,
1645 0, G_MAXLONG, False,
1646 gdk_x11_get_xatom_by_name_for_display (display,
1649 &n_items, &bytes_after,
1652 gdk_x11_display_error_trap_pop_ignored (display);
1656 g_free (x11_screen->window_manager_name);
1657 x11_screen->window_manager_name = g_strdup (name);
1663 return GDK_X11_SCREEN (screen)->window_manager_name;
1667 gdk_x11_screen_class_init (GdkX11ScreenClass *klass)
1669 GObjectClass *object_class = G_OBJECT_CLASS (klass);
1670 GdkScreenClass *screen_class = GDK_SCREEN_CLASS (klass);
1672 object_class->dispose = gdk_x11_screen_dispose;
1673 object_class->finalize = gdk_x11_screen_finalize;
1675 screen_class->get_display = gdk_x11_screen_get_display;
1676 screen_class->get_width = gdk_x11_screen_get_width;
1677 screen_class->get_height = gdk_x11_screen_get_height;
1678 screen_class->get_width_mm = gdk_x11_screen_get_width_mm;
1679 screen_class->get_height_mm = gdk_x11_screen_get_height_mm;
1680 screen_class->get_number = gdk_x11_screen_get_number;
1681 screen_class->get_root_window = gdk_x11_screen_get_root_window;
1682 screen_class->get_n_monitors = gdk_x11_screen_get_n_monitors;
1683 screen_class->get_primary_monitor = gdk_x11_screen_get_primary_monitor;
1684 screen_class->get_monitor_width_mm = gdk_x11_screen_get_monitor_width_mm;
1685 screen_class->get_monitor_height_mm = gdk_x11_screen_get_monitor_height_mm;
1686 screen_class->get_monitor_plug_name = gdk_x11_screen_get_monitor_plug_name;
1687 screen_class->get_monitor_geometry = gdk_x11_screen_get_monitor_geometry;
1688 screen_class->get_system_visual = _gdk_x11_screen_get_system_visual;
1689 screen_class->get_rgba_visual = gdk_x11_screen_get_rgba_visual;
1690 screen_class->is_composited = gdk_x11_screen_is_composited;
1691 screen_class->make_display_name = gdk_x11_screen_make_display_name;
1692 screen_class->get_active_window = gdk_x11_screen_get_active_window;
1693 screen_class->get_window_stack = gdk_x11_screen_get_window_stack;
1694 screen_class->broadcast_client_message = gdk_x11_screen_broadcast_client_message;
1695 screen_class->get_setting = gdk_x11_screen_get_setting;
1696 screen_class->visual_get_best_depth = _gdk_x11_screen_visual_get_best_depth;
1697 screen_class->visual_get_best_type = _gdk_x11_screen_visual_get_best_type;
1698 screen_class->visual_get_best = _gdk_x11_screen_visual_get_best;
1699 screen_class->visual_get_best_with_depth = _gdk_x11_screen_visual_get_best_with_depth;
1700 screen_class->visual_get_best_with_type = _gdk_x11_screen_visual_get_best_with_type;
1701 screen_class->visual_get_best_with_both = _gdk_x11_screen_visual_get_best_with_both;
1702 screen_class->query_depths = _gdk_x11_screen_query_depths;
1703 screen_class->query_visual_types = _gdk_x11_screen_query_visual_types;
1704 screen_class->list_visuals = _gdk_x11_screen_list_visuals;
1706 signals[WINDOW_MANAGER_CHANGED] =
1707 g_signal_new (g_intern_static_string ("window_manager_changed"),
1708 G_OBJECT_CLASS_TYPE (object_class),
1710 G_STRUCT_OFFSET (GdkX11ScreenClass, window_manager_changed),
1712 g_cclosure_marshal_VOID__VOID,