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[chaz/openbox] / openbox / screen.c
1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
2
3 screen.c for the Openbox window manager
4 Copyright (c) 2006 Mikael Magnusson
5 Copyright (c) 2003 Ben Jansens
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 See the COPYING file for a copy of the GNU General Public License.
18 */
19
20 #include "debug.h"
21 #include "openbox.h"
22 #include "dock.h"
23 #include "xerror.h"
24 #include "prop.h"
25 #include "grab.h"
26 #include "startupnotify.h"
27 #include "moveresize.h"
28 #include "config.h"
29 #include "screen.h"
30 #include "client.h"
31 #include "frame.h"
32 #include "event.h"
33 #include "focus.h"
34 #include "popup.h"
35 #include "extensions.h"
36 #include "render/render.h"
37
38 #include <X11/Xlib.h>
39 #ifdef HAVE_UNISTD_H
40 # include <sys/types.h>
41 # include <unistd.h>
42 #endif
43 #include <assert.h>
44
45 /*! The event mask to grab on the root window */
46 #define ROOT_EVENTMASK (StructureNotifyMask | PropertyChangeMask | \
47 EnterWindowMask | LeaveWindowMask | \
48 SubstructureNotifyMask | SubstructureRedirectMask | \
49 ButtonPressMask | ButtonReleaseMask | ButtonMotionMask)
50
51 guint screen_num_desktops;
52 guint screen_num_monitors;
53 guint screen_desktop;
54 guint screen_last_desktop;
55 Size screen_physical_size;
56 gboolean screen_showing_desktop;
57 DesktopLayout screen_desktop_layout;
58 gchar **screen_desktop_names;
59 Window screen_support_win;
60
61 static Rect **area; /* array of desktop holding array of xinerama areas */
62 static Rect *monitor_area;
63
64 static ObPagerPopup *desktop_cycle_popup;
65
66 static gboolean replace_wm()
67 {
68 gchar *wm_sn;
69 Atom wm_sn_atom;
70 Window current_wm_sn_owner;
71 Time timestamp;
72
73 wm_sn = g_strdup_printf("WM_S%d", ob_screen);
74 wm_sn_atom = XInternAtom(ob_display, wm_sn, FALSE);
75 g_free(wm_sn);
76
77 current_wm_sn_owner = XGetSelectionOwner(ob_display, wm_sn_atom);
78 if (current_wm_sn_owner == screen_support_win)
79 current_wm_sn_owner = None;
80 if (current_wm_sn_owner) {
81 if (!ob_replace_wm) {
82 g_warning("A window manager is already running on screen %d",
83 ob_screen);
84 return FALSE;
85 }
86 xerror_set_ignore(TRUE);
87 xerror_occured = FALSE;
88
89 /* We want to find out when the current selection owner dies */
90 XSelectInput(ob_display, current_wm_sn_owner, StructureNotifyMask);
91 XSync(ob_display, FALSE);
92
93 xerror_set_ignore(FALSE);
94 if (xerror_occured)
95 current_wm_sn_owner = None;
96 }
97
98 {
99 /* Generate a timestamp */
100 XEvent event;
101
102 XSelectInput(ob_display, screen_support_win, PropertyChangeMask);
103
104 XChangeProperty(ob_display, screen_support_win,
105 prop_atoms.wm_class, prop_atoms.string,
106 8, PropModeAppend, NULL, 0);
107 XWindowEvent(ob_display, screen_support_win,
108 PropertyChangeMask, &event);
109
110 XSelectInput(ob_display, screen_support_win, NoEventMask);
111
112 timestamp = event.xproperty.time;
113 }
114
115 XSetSelectionOwner(ob_display, wm_sn_atom, screen_support_win,
116 timestamp);
117
118 if (XGetSelectionOwner(ob_display, wm_sn_atom) != screen_support_win) {
119 g_warning("Could not acquire window manager selection on screen %d",
120 ob_screen);
121 return FALSE;
122 }
123
124 /* Wait for old window manager to go away */
125 if (current_wm_sn_owner) {
126 XEvent event;
127 gulong wait = 0;
128 const gulong timeout = G_USEC_PER_SEC * 15; /* wait for 15s max */
129
130 while (wait < timeout) {
131 if (XCheckWindowEvent(ob_display, current_wm_sn_owner,
132 StructureNotifyMask, &event) &&
133 event.type == DestroyNotify)
134 break;
135 g_usleep(G_USEC_PER_SEC / 10);
136 wait += G_USEC_PER_SEC / 10;
137 }
138
139 if (wait >= timeout) {
140 g_warning("Timeout expired while waiting for the current WM to die "
141 "on screen %d", ob_screen);
142 return FALSE;
143 }
144 }
145
146 /* Send client message indicating that we are now the WM */
147 prop_message(RootWindow(ob_display, ob_screen), prop_atoms.manager,
148 timestamp, wm_sn_atom, 0, 0, SubstructureNotifyMask);
149
150
151 return TRUE;
152 }
153
154 gboolean screen_annex()
155 {
156 XSetWindowAttributes attrib;
157 pid_t pid;
158 gint i, num_support;
159 gulong *supported;
160
161 /* create the netwm support window */
162 attrib.override_redirect = TRUE;
163 screen_support_win = XCreateWindow(ob_display,
164 RootWindow(ob_display, ob_screen),
165 -100, -100, 1, 1, 0,
166 CopyFromParent, InputOutput,
167 CopyFromParent,
168 CWOverrideRedirect, &attrib);
169 XMapRaised(ob_display, screen_support_win);
170
171 if (!replace_wm()) {
172 XDestroyWindow(ob_display, screen_support_win);
173 return FALSE;
174 }
175
176 xerror_set_ignore(TRUE);
177 xerror_occured = FALSE;
178 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
179 ROOT_EVENTMASK);
180 xerror_set_ignore(FALSE);
181 if (xerror_occured) {
182 g_warning("A window manager is already running on screen %d",
183 ob_screen);
184
185 XDestroyWindow(ob_display, screen_support_win);
186 return FALSE;
187 }
188
189
190 screen_set_root_cursor();
191
192 /* set the OPENBOX_PID hint */
193 pid = getpid();
194 PROP_SET32(RootWindow(ob_display, ob_screen),
195 openbox_pid, cardinal, pid);
196
197 /* set supporting window */
198 PROP_SET32(RootWindow(ob_display, ob_screen),
199 net_supporting_wm_check, window, screen_support_win);
200
201 /* set properties on the supporting window */
202 PROP_SETS(screen_support_win, net_wm_name, "Openbox");
203 PROP_SET32(screen_support_win, net_supporting_wm_check,
204 window, screen_support_win);
205
206 /* set the _NET_SUPPORTED_ATOMS hint */
207 num_support = 51;
208 i = 0;
209 supported = g_new(gulong, num_support);
210 supported[i++] = prop_atoms.net_current_desktop;
211 supported[i++] = prop_atoms.net_number_of_desktops;
212 supported[i++] = prop_atoms.net_desktop_geometry;
213 supported[i++] = prop_atoms.net_desktop_viewport;
214 supported[i++] = prop_atoms.net_active_window;
215 supported[i++] = prop_atoms.net_workarea;
216 supported[i++] = prop_atoms.net_client_list;
217 supported[i++] = prop_atoms.net_client_list_stacking;
218 supported[i++] = prop_atoms.net_desktop_names;
219 supported[i++] = prop_atoms.net_close_window;
220 supported[i++] = prop_atoms.net_desktop_layout;
221 supported[i++] = prop_atoms.net_showing_desktop;
222 supported[i++] = prop_atoms.net_wm_name;
223 supported[i++] = prop_atoms.net_wm_visible_name;
224 supported[i++] = prop_atoms.net_wm_icon_name;
225 supported[i++] = prop_atoms.net_wm_visible_icon_name;
226 supported[i++] = prop_atoms.net_wm_desktop;
227 supported[i++] = prop_atoms.net_wm_strut;
228 supported[i++] = prop_atoms.net_wm_window_type;
229 supported[i++] = prop_atoms.net_wm_window_type_desktop;
230 supported[i++] = prop_atoms.net_wm_window_type_dock;
231 supported[i++] = prop_atoms.net_wm_window_type_toolbar;
232 supported[i++] = prop_atoms.net_wm_window_type_menu;
233 supported[i++] = prop_atoms.net_wm_window_type_utility;
234 supported[i++] = prop_atoms.net_wm_window_type_splash;
235 supported[i++] = prop_atoms.net_wm_window_type_dialog;
236 supported[i++] = prop_atoms.net_wm_window_type_normal;
237 supported[i++] = prop_atoms.net_wm_allowed_actions;
238 supported[i++] = prop_atoms.net_wm_action_move;
239 supported[i++] = prop_atoms.net_wm_action_resize;
240 supported[i++] = prop_atoms.net_wm_action_minimize;
241 supported[i++] = prop_atoms.net_wm_action_shade;
242 supported[i++] = prop_atoms.net_wm_action_maximize_horz;
243 supported[i++] = prop_atoms.net_wm_action_maximize_vert;
244 supported[i++] = prop_atoms.net_wm_action_fullscreen;
245 supported[i++] = prop_atoms.net_wm_action_change_desktop;
246 supported[i++] = prop_atoms.net_wm_action_close;
247 supported[i++] = prop_atoms.net_wm_state;
248 supported[i++] = prop_atoms.net_wm_state_modal;
249 supported[i++] = prop_atoms.net_wm_state_maximized_vert;
250 supported[i++] = prop_atoms.net_wm_state_maximized_horz;
251 supported[i++] = prop_atoms.net_wm_state_shaded;
252 supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
253 supported[i++] = prop_atoms.net_wm_state_skip_pager;
254 supported[i++] = prop_atoms.net_wm_state_hidden;
255 supported[i++] = prop_atoms.net_wm_state_fullscreen;
256 supported[i++] = prop_atoms.net_wm_state_above;
257 supported[i++] = prop_atoms.net_wm_state_below;
258 supported[i++] = prop_atoms.net_moveresize_window;
259 supported[i++] = prop_atoms.net_wm_moveresize;
260 supported[i++] = prop_atoms.ob_wm_state_undecorated;
261 g_assert(i == num_support);
262 /*
263 supported[] = prop_atoms.net_wm_action_stick;
264 */
265
266 PROP_SETA32(RootWindow(ob_display, ob_screen),
267 net_supported, atom, supported, num_support);
268 g_free(supported);
269
270 return TRUE;
271 }
272
273 void screen_startup(gboolean reconfig)
274 {
275 GSList *it;
276 guint i;
277
278 desktop_cycle_popup = pager_popup_new(FALSE);
279
280 if (!reconfig)
281 /* get the initial size */
282 screen_resize();
283
284 /* set the names */
285 screen_desktop_names = g_new(gchar*,
286 g_slist_length(config_desktops_names) + 1);
287 for (i = 0, it = config_desktops_names; it; ++i, it = g_slist_next(it))
288 screen_desktop_names[i] = it->data; /* dont strdup */
289 screen_desktop_names[i] = NULL;
290 PROP_SETSS(RootWindow(ob_display, ob_screen),
291 net_desktop_names, screen_desktop_names);
292 g_free(screen_desktop_names); /* dont free the individual strings */
293 screen_desktop_names = NULL;
294
295 if (!reconfig)
296 screen_num_desktops = 0;
297 screen_set_num_desktops(config_desktops_num);
298 if (!reconfig) {
299 screen_set_desktop(MIN(config_screen_firstdesk, screen_num_desktops) - 1);
300
301 /* don't start in showing-desktop mode */
302 screen_showing_desktop = FALSE;
303 PROP_SET32(RootWindow(ob_display, ob_screen),
304 net_showing_desktop, cardinal, screen_showing_desktop);
305
306 screen_update_layout();
307 }
308 }
309
310 void screen_shutdown(gboolean reconfig)
311 {
312 Rect **r;
313
314 pager_popup_free(desktop_cycle_popup);
315
316 if (!reconfig) {
317 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
318 NoEventMask);
319
320 /* we're not running here no more! */
321 PROP_ERASE(RootWindow(ob_display, ob_screen), openbox_pid);
322 /* not without us */
323 PROP_ERASE(RootWindow(ob_display, ob_screen), net_supported);
324 /* don't keep this mode */
325 PROP_ERASE(RootWindow(ob_display, ob_screen), net_showing_desktop);
326
327 XDestroyWindow(ob_display, screen_support_win);
328 }
329
330 g_strfreev(screen_desktop_names);
331 screen_desktop_names = NULL;
332 for (r = area; *r; ++r)
333 g_free(*r);
334 g_free(area);
335 area = NULL;
336 }
337
338 void screen_resize()
339 {
340 static gint oldw = 0, oldh = 0;
341 gint w, h;
342 GList *it;
343 gulong geometry[2];
344
345 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
346 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
347
348 if (w == oldw && h == oldh) return;
349
350 oldw = w; oldh = h;
351
352 /* Set the _NET_DESKTOP_GEOMETRY hint */
353 screen_physical_size.width = geometry[0] = w;
354 screen_physical_size.height = geometry[1] = h;
355 PROP_SETA32(RootWindow(ob_display, ob_screen),
356 net_desktop_geometry, cardinal, geometry, 2);
357
358 if (ob_state() == OB_STATE_STARTING)
359 return;
360
361 screen_update_areas();
362 dock_configure();
363
364 for (it = client_list; it; it = g_list_next(it))
365 client_move_onscreen(it->data, FALSE);
366 }
367
368 void screen_set_num_desktops(guint num)
369 {
370 guint i, old;
371 gulong *viewport;
372 GList *it;
373
374 g_assert(num > 0);
375
376 if (screen_num_desktops == num) return;
377
378 old = screen_num_desktops;
379 screen_num_desktops = num;
380 PROP_SET32(RootWindow(ob_display, ob_screen),
381 net_number_of_desktops, cardinal, num);
382
383 /* set the viewport hint */
384 viewport = g_new0(gulong, num * 2);
385 PROP_SETA32(RootWindow(ob_display, ob_screen),
386 net_desktop_viewport, cardinal, viewport, num * 2);
387 g_free(viewport);
388
389 /* the number of rows/columns will differ */
390 screen_update_layout();
391
392 /* may be some unnamed desktops that we need to fill in with names */
393 screen_update_desktop_names();
394
395 /* move windows on desktops that will no longer exist! */
396 for (it = client_list; it; it = g_list_next(it)) {
397 ObClient *c = it->data;
398 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
399 client_set_desktop(c, num - 1, FALSE);
400 }
401
402 /* change our struts/area to match (after moving windows) */
403 screen_update_areas();
404
405 /* change our desktop if we're on one that no longer exists! */
406 if (screen_desktop >= screen_num_desktops)
407 screen_set_desktop(num - 1);
408
409 /* update the focus lists */
410 /* free our lists for the desktops which have disappeared */
411 for (i = num; i < old; ++i)
412 g_list_free(focus_order[i]);
413 /* realloc the array */
414 focus_order = g_renew(GList*, focus_order, num);
415 /* set the new lists to be empty */
416 for (i = old; i < num; ++i)
417 focus_order[i] = NULL;
418 }
419
420 void screen_set_desktop(guint num)
421 {
422 GList *it;
423 guint old;
424
425 g_assert(num < screen_num_desktops);
426
427 old = screen_desktop;
428 screen_desktop = num;
429 PROP_SET32(RootWindow(ob_display, ob_screen),
430 net_current_desktop, cardinal, num);
431
432 if (old == num) return;
433
434 screen_last_desktop = old;
435
436 ob_debug("Moving to desktop %d\n", num+1);
437
438 if (moveresize_client)
439 client_set_desktop(moveresize_client, num, TRUE);
440
441 /* show windows before hiding the rest to lessen the enter/leave events */
442
443 /* show windows from top to bottom */
444 for (it = stacking_list; it; it = g_list_next(it)) {
445 if (WINDOW_IS_CLIENT(it->data)) {
446 ObClient *c = it->data;
447 if (client_should_show(c))
448 frame_show(c->frame);
449 }
450 }
451
452 /* hide windows from bottom to top */
453 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
454 if (WINDOW_IS_CLIENT(it->data)) {
455 ObClient *c = it->data;
456 if (c->frame->visible && !client_should_show(c))
457 frame_hide(c->frame);
458 }
459 }
460
461 event_ignore_queued_enters();
462
463 focus_hilite = focus_fallback_target(OB_FOCUS_FALLBACK_NOFOCUS);
464 if (focus_hilite) {
465 frame_adjust_focus(focus_hilite->frame, TRUE);
466
467 /*!
468 When this focus_client check is not used, you can end up with races,
469 as demonstrated with gnome-panel, sometmies the window you click on
470 another desktop ends up losing focus cuz of the focus change here.
471 */
472 /*if (!focus_client)*/
473 client_focus(focus_hilite);
474 }
475 }
476
477 static void get_row_col(guint d, guint *r, guint *c)
478 {
479 switch (screen_desktop_layout.orientation) {
480 case OB_ORIENTATION_HORZ:
481 switch (screen_desktop_layout.start_corner) {
482 case OB_CORNER_TOPLEFT:
483 *r = d / screen_desktop_layout.columns;
484 *c = d % screen_desktop_layout.columns;
485 break;
486 case OB_CORNER_BOTTOMLEFT:
487 *r = screen_desktop_layout.rows - 1 -
488 d / screen_desktop_layout.columns;
489 *c = d % screen_desktop_layout.columns;
490 break;
491 case OB_CORNER_TOPRIGHT:
492 *r = d / screen_desktop_layout.columns;
493 *c = screen_desktop_layout.columns - 1 -
494 d % screen_desktop_layout.columns;
495 break;
496 case OB_CORNER_BOTTOMRIGHT:
497 *r = screen_desktop_layout.rows - 1 -
498 d / screen_desktop_layout.columns;
499 *c = screen_desktop_layout.columns - 1 -
500 d % screen_desktop_layout.columns;
501 break;
502 }
503 break;
504 case OB_ORIENTATION_VERT:
505 switch (screen_desktop_layout.start_corner) {
506 case OB_CORNER_TOPLEFT:
507 *r = d % screen_desktop_layout.rows;
508 *c = d / screen_desktop_layout.rows;
509 break;
510 case OB_CORNER_BOTTOMLEFT:
511 *r = screen_desktop_layout.rows - 1 -
512 d % screen_desktop_layout.rows;
513 *c = d / screen_desktop_layout.rows;
514 break;
515 case OB_CORNER_TOPRIGHT:
516 *r = d % screen_desktop_layout.rows;
517 *c = screen_desktop_layout.columns - 1 -
518 d / screen_desktop_layout.rows;
519 break;
520 case OB_CORNER_BOTTOMRIGHT:
521 *r = screen_desktop_layout.rows - 1 -
522 d % screen_desktop_layout.rows;
523 *c = screen_desktop_layout.columns - 1 -
524 d / screen_desktop_layout.rows;
525 break;
526 }
527 break;
528 }
529 }
530
531 static guint translate_row_col(guint r, guint c)
532 {
533 switch (screen_desktop_layout.orientation) {
534 case OB_ORIENTATION_HORZ:
535 switch (screen_desktop_layout.start_corner) {
536 case OB_CORNER_TOPLEFT:
537 return r % screen_desktop_layout.rows *
538 screen_desktop_layout.columns +
539 c % screen_desktop_layout.columns;
540 case OB_CORNER_BOTTOMLEFT:
541 return (screen_desktop_layout.rows - 1 -
542 r % screen_desktop_layout.rows) *
543 screen_desktop_layout.columns +
544 c % screen_desktop_layout.columns;
545 case OB_CORNER_TOPRIGHT:
546 return r % screen_desktop_layout.rows *
547 screen_desktop_layout.columns +
548 (screen_desktop_layout.columns - 1 -
549 c % screen_desktop_layout.columns);
550 case OB_CORNER_BOTTOMRIGHT:
551 return (screen_desktop_layout.rows - 1 -
552 r % screen_desktop_layout.rows) *
553 screen_desktop_layout.columns +
554 (screen_desktop_layout.columns - 1 -
555 c % screen_desktop_layout.columns);
556 }
557 case OB_ORIENTATION_VERT:
558 switch (screen_desktop_layout.start_corner) {
559 case OB_CORNER_TOPLEFT:
560 return c % screen_desktop_layout.columns *
561 screen_desktop_layout.rows +
562 r % screen_desktop_layout.rows;
563 case OB_CORNER_BOTTOMLEFT:
564 return c % screen_desktop_layout.columns *
565 screen_desktop_layout.rows +
566 (screen_desktop_layout.rows - 1 -
567 r % screen_desktop_layout.rows);
568 case OB_CORNER_TOPRIGHT:
569 return (screen_desktop_layout.columns - 1 -
570 c % screen_desktop_layout.columns) *
571 screen_desktop_layout.rows +
572 r % screen_desktop_layout.rows;
573 case OB_CORNER_BOTTOMRIGHT:
574 return (screen_desktop_layout.columns - 1 -
575 c % screen_desktop_layout.columns) *
576 screen_desktop_layout.rows +
577 (screen_desktop_layout.rows - 1 -
578 r % screen_desktop_layout.rows);
579 }
580 }
581 g_assert_not_reached();
582 return 0;
583 }
584
585 void screen_desktop_popup(guint d, gboolean show)
586 {
587 Rect *a;
588
589 if (!show) {
590 pager_popup_hide(desktop_cycle_popup);
591 } else {
592 a = screen_physical_area_monitor(0);
593 pager_popup_position(desktop_cycle_popup, CenterGravity,
594 a->x + a->width / 2, a->y + a->height / 2);
595 /* XXX the size and the font extents need to be related on some level
596 */
597 pager_popup_size(desktop_cycle_popup, POPUP_WIDTH, POPUP_HEIGHT);
598
599 pager_popup_set_text_align(desktop_cycle_popup, RR_JUSTIFY_CENTER);
600
601 pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
602 }
603 }
604
605 guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
606 gboolean dialog, gboolean done, gboolean cancel)
607 {
608 static gboolean first = TRUE;
609 static guint origd, d;
610 guint r, c;
611
612 if (cancel) {
613 d = origd;
614 goto done_cycle;
615 } else if (done && dialog) {
616 goto done_cycle;
617 }
618 if (first) {
619 first = FALSE;
620 d = origd = screen_desktop;
621 }
622
623 get_row_col(d, &r, &c);
624
625 if (linear) {
626 switch (dir) {
627 case OB_DIRECTION_EAST:
628 if (d < screen_num_desktops - 1)
629 ++d;
630 else if (wrap)
631 d = 0;
632 break;
633 case OB_DIRECTION_WEST:
634 if (d > 0)
635 --d;
636 else if (wrap)
637 d = screen_num_desktops - 1;
638 break;
639 default:
640 assert(0);
641 return screen_desktop;
642 }
643 } else {
644 switch (dir) {
645 case OB_DIRECTION_EAST:
646 ++c;
647 if (c >= screen_desktop_layout.columns) {
648 if (wrap) {
649 c = 0;
650 } else {
651 d = screen_desktop;
652 goto show_cycle_dialog;
653 }
654 }
655 d = translate_row_col(r, c);
656 if (d >= screen_num_desktops) {
657 if (wrap) {
658 ++c;
659 } else {
660 d = screen_desktop;
661 goto show_cycle_dialog;
662 }
663 }
664 break;
665 case OB_DIRECTION_WEST:
666 --c;
667 if (c >= screen_desktop_layout.columns) {
668 if (wrap) {
669 c = screen_desktop_layout.columns - 1;
670 } else {
671 d = screen_desktop;
672 goto show_cycle_dialog;
673 }
674 }
675 d = translate_row_col(r, c);
676 if (d >= screen_num_desktops) {
677 if (wrap) {
678 --c;
679 } else {
680 d = screen_desktop;
681 goto show_cycle_dialog;
682 }
683 }
684 break;
685 case OB_DIRECTION_SOUTH:
686 ++r;
687 if (r >= screen_desktop_layout.rows) {
688 if (wrap) {
689 r = 0;
690 } else {
691 d = screen_desktop;
692 goto show_cycle_dialog;
693 }
694 }
695 d = translate_row_col(r, c);
696 if (d >= screen_num_desktops) {
697 if (wrap) {
698 ++r;
699 } else {
700 d = screen_desktop;
701 goto show_cycle_dialog;
702 }
703 }
704 break;
705 case OB_DIRECTION_NORTH:
706 --r;
707 if (r >= screen_desktop_layout.rows) {
708 if (wrap) {
709 r = screen_desktop_layout.rows - 1;
710 } else {
711 d = screen_desktop;
712 goto show_cycle_dialog;
713 }
714 }
715 d = translate_row_col(r, c);
716 if (d >= screen_num_desktops) {
717 if (wrap) {
718 --r;
719 } else {
720 d = screen_desktop;
721 goto show_cycle_dialog;
722 }
723 }
724 break;
725 default:
726 assert(0);
727 return d = screen_desktop;
728 }
729
730 d = translate_row_col(r, c);
731 }
732
733 show_cycle_dialog:
734 if (dialog) {
735 screen_desktop_popup(d, TRUE);
736 return d;
737 }
738
739 done_cycle:
740 first = TRUE;
741
742 screen_desktop_popup(0, FALSE);
743
744 return d;
745 }
746
747 void screen_update_layout()
748 {
749 ObOrientation orient;
750 ObCorner corner;
751 guint rows;
752 guint cols;
753 guint32 *data;
754 guint num;
755 gboolean valid = FALSE;
756
757 if (PROP_GETA32(RootWindow(ob_display, ob_screen),
758 net_desktop_layout, cardinal, &data, &num)) {
759 if (num == 3 || num == 4) {
760
761 if (data[0] == prop_atoms.net_wm_orientation_vert)
762 orient = OB_ORIENTATION_VERT;
763 else if (data[0] == prop_atoms.net_wm_orientation_horz)
764 orient = OB_ORIENTATION_HORZ;
765 else
766 goto screen_update_layout_bail;
767
768 if (num < 4)
769 corner = OB_CORNER_TOPLEFT;
770 else {
771 if (data[3] == prop_atoms.net_wm_topleft)
772 corner = OB_CORNER_TOPLEFT;
773 else if (data[3] == prop_atoms.net_wm_topright)
774 corner = OB_CORNER_TOPRIGHT;
775 else if (data[3] == prop_atoms.net_wm_bottomright)
776 corner = OB_CORNER_BOTTOMRIGHT;
777 else if (data[3] == prop_atoms.net_wm_bottomleft)
778 corner = OB_CORNER_BOTTOMLEFT;
779 else
780 goto screen_update_layout_bail;
781 }
782
783 cols = data[1];
784 rows = data[2];
785
786 /* fill in a zero rows/columns */
787 if ((cols == 0 && rows == 0)) { /* both 0's is bad data.. */
788 goto screen_update_layout_bail;
789 } else {
790 if (cols == 0) {
791 cols = screen_num_desktops / rows;
792 if (rows * cols < screen_num_desktops)
793 cols++;
794 if (rows * cols >= screen_num_desktops + cols)
795 rows--;
796 } else if (rows == 0) {
797 rows = screen_num_desktops / cols;
798 if (cols * rows < screen_num_desktops)
799 rows++;
800 if (cols * rows >= screen_num_desktops + rows)
801 cols--;
802 }
803 }
804
805 /* bounds checking */
806 if (orient == OB_ORIENTATION_HORZ) {
807 cols = MIN(screen_num_desktops, cols);
808 rows = MIN(rows, (screen_num_desktops + cols - 1) / cols);
809 cols = screen_num_desktops / rows +
810 !!(screen_num_desktops % rows);
811 } else {
812 rows = MIN(screen_num_desktops, rows);
813 cols = MIN(cols, (screen_num_desktops + rows - 1) / rows);
814 rows = screen_num_desktops / cols +
815 !!(screen_num_desktops % cols);
816 }
817
818 valid = TRUE;
819 }
820 screen_update_layout_bail:
821 g_free(data);
822 }
823
824 if (!valid) {
825 /* defaults */
826 orient = OB_ORIENTATION_HORZ;
827 corner = OB_CORNER_TOPLEFT;
828 rows = 1;
829 cols = screen_num_desktops;
830 }
831
832 screen_desktop_layout.orientation = orient;
833 screen_desktop_layout.start_corner = corner;
834 screen_desktop_layout.rows = rows;
835 screen_desktop_layout.columns = cols;
836 }
837
838 void screen_update_desktop_names()
839 {
840 guint i;
841
842 /* empty the array */
843 g_strfreev(screen_desktop_names);
844 screen_desktop_names = NULL;
845
846 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
847 net_desktop_names, utf8, &screen_desktop_names))
848 for (i = 0; screen_desktop_names[i] && i <= screen_num_desktops; ++i);
849 else
850 i = 0;
851 if (i <= screen_num_desktops) {
852 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
853 screen_num_desktops + 1);
854 screen_desktop_names[screen_num_desktops] = NULL;
855 for (; i < screen_num_desktops; ++i)
856 screen_desktop_names[i] = g_strdup_printf("Desktop %i", i + 1);
857 }
858 }
859
860 void screen_show_desktop(gboolean show)
861 {
862 GList *it;
863
864 if (show == screen_showing_desktop) return; /* no change */
865
866 screen_showing_desktop = show;
867
868 if (show) {
869 /* bottom to top */
870 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
871 if (WINDOW_IS_CLIENT(it->data)) {
872 ObClient *client = it->data;
873 if (client->frame->visible && !client_should_show(client))
874 frame_hide(client->frame);
875 }
876 }
877 } else {
878 /* top to bottom */
879 for (it = stacking_list; it; it = g_list_next(it)) {
880 if (WINDOW_IS_CLIENT(it->data)) {
881 ObClient *client = it->data;
882 if (!client->frame->visible && client_should_show(client))
883 frame_show(client->frame);
884 }
885 }
886 }
887
888 if (show) {
889 /* focus desktop */
890 for (it = focus_order[screen_desktop]; it; it = g_list_next(it))
891 if (((ObClient*)it->data)->type == OB_CLIENT_TYPE_DESKTOP &&
892 client_focus(it->data))
893 break;
894 } else {
895 focus_fallback(OB_FOCUS_FALLBACK_NOFOCUS);
896 }
897
898 show = !!show; /* make it boolean */
899 PROP_SET32(RootWindow(ob_display, ob_screen),
900 net_showing_desktop, cardinal, show);
901 }
902
903 void screen_install_colormap(ObClient *client, gboolean install)
904 {
905 XWindowAttributes wa;
906
907 if (client == NULL) {
908 if (install)
909 XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
910 else
911 XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
912 } else {
913 if (XGetWindowAttributes(ob_display, client->window, &wa) &&
914 wa.colormap != None) {
915 xerror_set_ignore(TRUE);
916 if (install)
917 XInstallColormap(RrDisplay(ob_rr_inst), wa.colormap);
918 else
919 XUninstallColormap(RrDisplay(ob_rr_inst), wa.colormap);
920 xerror_set_ignore(FALSE);
921 }
922 }
923 }
924
925 static inline void
926 screen_area_add_strut_left(const StrutPartial *s, const Rect *monitor_area,
927 gint edge, Strut *ret)
928 {
929 if (s->left &&
930 ((s->left_end <= s->left_start) ||
931 (RECT_TOP(*monitor_area) < s->left_end &&
932 RECT_BOTTOM(*monitor_area) > s->left_start)))
933 ret->left = MAX(ret->left, edge);
934 }
935
936 static inline void
937 screen_area_add_strut_top(const StrutPartial *s, const Rect *monitor_area,
938 gint edge, Strut *ret)
939 {
940 if (s->top &&
941 ((s->top_end <= s->top_start) ||
942 (RECT_LEFT(*monitor_area) < s->top_end &&
943 RECT_RIGHT(*monitor_area) > s->top_start)))
944 ret->top = MAX(ret->top, edge);
945 }
946
947 static inline void
948 screen_area_add_strut_right(const StrutPartial *s, const Rect *monitor_area,
949 gint edge, Strut *ret)
950 {
951 if (s->right &&
952 ((s->right_end <= s->right_start) ||
953 (RECT_TOP(*monitor_area) < s->right_end &&
954 RECT_BOTTOM(*monitor_area) > s->right_start)))
955 ret->right = MAX(ret->right, edge);
956 }
957
958 static inline void
959 screen_area_add_strut_bottom(const StrutPartial *s, const Rect *monitor_area,
960 gint edge, Strut *ret)
961 {
962 if (s->bottom &&
963 ((s->bottom_end <= s->bottom_start) ||
964 (RECT_LEFT(*monitor_area) < s->bottom_end &&
965 RECT_RIGHT(*monitor_area) > s->bottom_start)))
966 ret->bottom = MAX(ret->bottom, edge);
967 }
968
969 void screen_update_areas()
970 {
971 guint i, x;
972 gulong *dims;
973 GList *it;
974 gint o;
975
976 g_free(monitor_area);
977 extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
978
979 if (area) {
980 for (i = 0; area[i]; ++i)
981 g_free(area[i]);
982 g_free(area);
983 }
984
985 area = g_new(Rect*, screen_num_desktops + 2);
986 for (i = 0; i < screen_num_desktops + 1; ++i)
987 area[i] = g_new0(Rect, screen_num_monitors + 1);
988 area[i] = NULL;
989
990 dims = g_new(gulong, 4 * screen_num_desktops);
991
992 for (i = 0; i < screen_num_desktops + 1; ++i) {
993 Strut *struts;
994 gint l, r, t, b;
995
996 struts = g_new0(Strut, screen_num_monitors);
997
998 /* calc the xinerama areas */
999 for (x = 0; x < screen_num_monitors; ++x) {
1000 area[i][x] = monitor_area[x];
1001 if (x == 0) {
1002 l = monitor_area[x].x;
1003 t = monitor_area[x].y;
1004 r = monitor_area[x].x + monitor_area[x].width - 1;
1005 b = monitor_area[x].y + monitor_area[x].height - 1;
1006 } else {
1007 l = MIN(l, monitor_area[x].x);
1008 t = MIN(t, monitor_area[x].y);
1009 r = MAX(r, monitor_area[x].x + monitor_area[x].width - 1);
1010 b = MAX(b, monitor_area[x].y + monitor_area[x].height - 1);
1011 }
1012 }
1013 RECT_SET(area[i][x], l, t, r - l + 1, b - t + 1);
1014
1015 /* apply the struts */
1016
1017 /* find the left-most xin heads, i do this in 2 loops :| */
1018 o = area[i][0].x;
1019 for (x = 1; x < screen_num_monitors; ++x)
1020 o = MIN(o, area[i][x].x);
1021
1022 for (x = 0; x < screen_num_monitors; ++x) {
1023 for (it = client_list; it; it = g_list_next(it)) {
1024 ObClient *c = it->data;
1025 screen_area_add_strut_left(&c->strut,
1026 &monitor_area[x],
1027 o + c->strut.left - area[i][x].x,
1028 &struts[x]);
1029 }
1030 screen_area_add_strut_left(&dock_strut,
1031 &monitor_area[x],
1032 o + dock_strut.left - area[i][x].x,
1033 &struts[x]);
1034
1035 area[i][x].x += struts[x].left;
1036 area[i][x].width -= struts[x].left;
1037 }
1038
1039 /* find the top-most xin heads, i do this in 2 loops :| */
1040 o = area[i][0].y;
1041 for (x = 1; x < screen_num_monitors; ++x)
1042 o = MIN(o, area[i][x].y);
1043
1044 for (x = 0; x < screen_num_monitors; ++x) {
1045 for (it = client_list; it; it = g_list_next(it)) {
1046 ObClient *c = it->data;
1047 screen_area_add_strut_top(&c->strut,
1048 &monitor_area[x],
1049 o + c->strut.top - area[i][x].y,
1050 &struts[x]);
1051 }
1052 screen_area_add_strut_top(&dock_strut,
1053 &monitor_area[x],
1054 o + dock_strut.top - area[i][x].y,
1055 &struts[x]);
1056
1057 area[i][x].y += struts[x].top;
1058 area[i][x].height -= struts[x].top;
1059 }
1060
1061 /* find the right-most xin heads, i do this in 2 loops :| */
1062 o = area[i][0].x + area[i][0].width - 1;
1063 for (x = 1; x < screen_num_monitors; ++x)
1064 o = MAX(o, area[i][x].x + area[i][x].width - 1);
1065
1066 for (x = 0; x < screen_num_monitors; ++x) {
1067 for (it = client_list; it; it = g_list_next(it)) {
1068 ObClient *c = it->data;
1069 screen_area_add_strut_right(&c->strut,
1070 &monitor_area[x],
1071 (area[i][x].x +
1072 area[i][x].width - 1) -
1073 (o - c->strut.right),
1074 &struts[x]);
1075 }
1076 screen_area_add_strut_right(&dock_strut,
1077 &monitor_area[x],
1078 (area[i][x].x +
1079 area[i][x].width - 1) -
1080 (o - dock_strut.right),
1081 &struts[x]);
1082
1083 area[i][x].width -= struts[x].right;
1084 }
1085
1086 /* find the bottom-most xin heads, i do this in 2 loops :| */
1087 o = area[i][0].y + area[i][0].height - 1;
1088 for (x = 1; x < screen_num_monitors; ++x)
1089 o = MAX(o, area[i][x].y + area[i][x].height - 1);
1090
1091 for (x = 0; x < screen_num_monitors; ++x) {
1092 for (it = client_list; it; it = g_list_next(it)) {
1093 ObClient *c = it->data;
1094 screen_area_add_strut_bottom(&c->strut,
1095 &monitor_area[x],
1096 (area[i][x].y +
1097 area[i][x].height - 1) - \
1098 (o - c->strut.bottom),
1099 &struts[x]);
1100 }
1101 screen_area_add_strut_bottom(&dock_strut,
1102 &monitor_area[x],
1103 (area[i][x].y +
1104 area[i][x].height - 1) - \
1105 (o - dock_strut.bottom),
1106 &struts[x]);
1107
1108 area[i][x].height -= struts[x].bottom;
1109 }
1110
1111 l = RECT_LEFT(area[i][0]);
1112 t = RECT_TOP(area[i][0]);
1113 r = RECT_RIGHT(area[i][0]);
1114 b = RECT_BOTTOM(area[i][0]);
1115 for (x = 1; x < screen_num_monitors; ++x) {
1116 l = MIN(l, RECT_LEFT(area[i][x]));
1117 t = MIN(l, RECT_TOP(area[i][x]));
1118 r = MAX(r, RECT_RIGHT(area[i][x]));
1119 b = MAX(b, RECT_BOTTOM(area[i][x]));
1120 }
1121 RECT_SET(area[i][screen_num_monitors], l, t,
1122 r - l + 1, b - t + 1);
1123
1124 /* XXX optimize when this is run? */
1125
1126 /* the area has changed, adjust all the maximized
1127 windows */
1128 for (it = client_list; it; it = g_list_next(it)) {
1129 ObClient *c = it->data;
1130 if (i < screen_num_desktops) {
1131 if (c->desktop == i)
1132 client_reconfigure(c);
1133 } else if (c->desktop == DESKTOP_ALL)
1134 client_reconfigure(c);
1135 }
1136 if (i < screen_num_desktops) {
1137 /* don't set these for the 'all desktops' area */
1138 dims[(i * 4) + 0] = area[i][screen_num_monitors].x;
1139 dims[(i * 4) + 1] = area[i][screen_num_monitors].y;
1140 dims[(i * 4) + 2] = area[i][screen_num_monitors].width;
1141 dims[(i * 4) + 3] = area[i][screen_num_monitors].height;
1142 }
1143
1144 g_free(struts);
1145 }
1146
1147 PROP_SETA32(RootWindow(ob_display, ob_screen), net_workarea, cardinal,
1148 dims, 4 * screen_num_desktops);
1149
1150 g_free(dims);
1151 }
1152
1153 Rect *screen_area(guint desktop)
1154 {
1155 return screen_area_monitor(desktop, screen_num_monitors);
1156 }
1157
1158 Rect *screen_area_monitor(guint desktop, guint head)
1159 {
1160 if (head > screen_num_monitors)
1161 return NULL;
1162 if (desktop >= screen_num_desktops) {
1163 if (desktop == DESKTOP_ALL)
1164 return &area[screen_num_desktops][head];
1165 return NULL;
1166 }
1167 return &area[desktop][head];
1168 }
1169
1170 Rect *screen_physical_area()
1171 {
1172 return screen_physical_area_monitor(screen_num_monitors);
1173 }
1174
1175 Rect *screen_physical_area_monitor(guint head)
1176 {
1177 if (head > screen_num_monitors)
1178 return NULL;
1179 return &monitor_area[head];
1180 }
1181
1182 void screen_set_root_cursor()
1183 {
1184 if (sn_app_starting())
1185 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1186 ob_cursor(OB_CURSOR_BUSY));
1187 else
1188 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1189 ob_cursor(OB_CURSOR_POINTER));
1190 }
1191
1192 gboolean screen_pointer_pos(gint *x, gint *y)
1193 {
1194 Window w;
1195 gint i;
1196 guint u;
1197
1198 return !!XQueryPointer(ob_display, RootWindow(ob_display, ob_screen),
1199 &w, &w, x, y, &i, &i, &u);
1200 }
my patches for the openbox window manager
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