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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) 2003-2007 Dana 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 SubstructureRedirectMask | FocusChangeMask | \
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 XMapWindow(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 = 55;
208 i = 0;
209 supported = g_new(gulong, num_support);
210 supported[i++] = prop_atoms.net_wm_full_placement;
211 supported[i++] = prop_atoms.net_current_desktop;
212 supported[i++] = prop_atoms.net_number_of_desktops;
213 supported[i++] = prop_atoms.net_desktop_geometry;
214 supported[i++] = prop_atoms.net_desktop_viewport;
215 supported[i++] = prop_atoms.net_active_window;
216 supported[i++] = prop_atoms.net_workarea;
217 supported[i++] = prop_atoms.net_client_list;
218 supported[i++] = prop_atoms.net_client_list_stacking;
219 supported[i++] = prop_atoms.net_desktop_names;
220 supported[i++] = prop_atoms.net_close_window;
221 supported[i++] = prop_atoms.net_desktop_layout;
222 supported[i++] = prop_atoms.net_showing_desktop;
223 supported[i++] = prop_atoms.net_wm_name;
224 supported[i++] = prop_atoms.net_wm_visible_name;
225 supported[i++] = prop_atoms.net_wm_icon_name;
226 supported[i++] = prop_atoms.net_wm_visible_icon_name;
227 supported[i++] = prop_atoms.net_wm_desktop;
228 supported[i++] = prop_atoms.net_wm_strut;
229 supported[i++] = prop_atoms.net_wm_window_type;
230 supported[i++] = prop_atoms.net_wm_window_type_desktop;
231 supported[i++] = prop_atoms.net_wm_window_type_dock;
232 supported[i++] = prop_atoms.net_wm_window_type_toolbar;
233 supported[i++] = prop_atoms.net_wm_window_type_menu;
234 supported[i++] = prop_atoms.net_wm_window_type_utility;
235 supported[i++] = prop_atoms.net_wm_window_type_splash;
236 supported[i++] = prop_atoms.net_wm_window_type_dialog;
237 supported[i++] = prop_atoms.net_wm_window_type_normal;
238 supported[i++] = prop_atoms.net_wm_allowed_actions;
239 supported[i++] = prop_atoms.net_wm_action_move;
240 supported[i++] = prop_atoms.net_wm_action_resize;
241 supported[i++] = prop_atoms.net_wm_action_minimize;
242 supported[i++] = prop_atoms.net_wm_action_shade;
243 supported[i++] = prop_atoms.net_wm_action_maximize_horz;
244 supported[i++] = prop_atoms.net_wm_action_maximize_vert;
245 supported[i++] = prop_atoms.net_wm_action_fullscreen;
246 supported[i++] = prop_atoms.net_wm_action_change_desktop;
247 supported[i++] = prop_atoms.net_wm_action_close;
248 supported[i++] = prop_atoms.net_wm_state;
249 supported[i++] = prop_atoms.net_wm_state_modal;
250 supported[i++] = prop_atoms.net_wm_state_maximized_vert;
251 supported[i++] = prop_atoms.net_wm_state_maximized_horz;
252 supported[i++] = prop_atoms.net_wm_state_shaded;
253 supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
254 supported[i++] = prop_atoms.net_wm_state_skip_pager;
255 supported[i++] = prop_atoms.net_wm_state_hidden;
256 supported[i++] = prop_atoms.net_wm_state_fullscreen;
257 supported[i++] = prop_atoms.net_wm_state_above;
258 supported[i++] = prop_atoms.net_wm_state_below;
259 supported[i++] = prop_atoms.net_wm_state_demands_attention;
260 supported[i++] = prop_atoms.net_moveresize_window;
261 supported[i++] = prop_atoms.net_wm_moveresize;
262 supported[i++] = prop_atoms.net_wm_user_time;
263 supported[i++] = prop_atoms.net_frame_extents;
264 supported[i++] = prop_atoms.ob_wm_state_undecorated;
265 g_assert(i == num_support);
266 /*
267 supported[] = prop_atoms.net_wm_action_stick;
268 */
269
270 PROP_SETA32(RootWindow(ob_display, ob_screen),
271 net_supported, atom, supported, num_support);
272 g_free(supported);
273
274 return TRUE;
275 }
276
277 void screen_startup(gboolean reconfig)
278 {
279 GSList *it;
280 guint i;
281
282 desktop_cycle_popup = pager_popup_new(FALSE);
283
284 if (!reconfig)
285 /* get the initial size */
286 screen_resize();
287
288 /* set the names */
289 screen_desktop_names = g_new(gchar*,
290 g_slist_length(config_desktops_names) + 1);
291 for (i = 0, it = config_desktops_names; it; ++i, it = g_slist_next(it))
292 screen_desktop_names[i] = it->data; /* dont strdup */
293 screen_desktop_names[i] = NULL;
294 PROP_SETSS(RootWindow(ob_display, ob_screen),
295 net_desktop_names, screen_desktop_names);
296 g_free(screen_desktop_names); /* dont free the individual strings */
297 screen_desktop_names = NULL;
298
299 if (!reconfig)
300 screen_num_desktops = 0;
301 screen_set_num_desktops(config_desktops_num);
302 if (!reconfig) {
303 screen_set_desktop(MIN(config_screen_firstdesk, screen_num_desktops)
304 - 1);
305
306 /* don't start in showing-desktop mode */
307 screen_showing_desktop = FALSE;
308 PROP_SET32(RootWindow(ob_display, ob_screen),
309 net_showing_desktop, cardinal, screen_showing_desktop);
310
311 screen_update_layout();
312 }
313 }
314
315 void screen_shutdown(gboolean reconfig)
316 {
317 Rect **r;
318
319 pager_popup_free(desktop_cycle_popup);
320
321 if (!reconfig) {
322 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
323 NoEventMask);
324
325 /* we're not running here no more! */
326 PROP_ERASE(RootWindow(ob_display, ob_screen), openbox_pid);
327 /* not without us */
328 PROP_ERASE(RootWindow(ob_display, ob_screen), net_supported);
329 /* don't keep this mode */
330 PROP_ERASE(RootWindow(ob_display, ob_screen), net_showing_desktop);
331
332 XDestroyWindow(ob_display, screen_support_win);
333 }
334
335 g_strfreev(screen_desktop_names);
336 screen_desktop_names = NULL;
337 for (r = area; *r; ++r)
338 g_free(*r);
339 g_free(area);
340 area = NULL;
341 }
342
343 void screen_resize()
344 {
345 static gint oldw = 0, oldh = 0;
346 gint w, h;
347 GList *it;
348 gulong geometry[2];
349
350 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
351 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
352
353 if (w == oldw && h == oldh) return;
354
355 oldw = w; oldh = h;
356
357 /* Set the _NET_DESKTOP_GEOMETRY hint */
358 screen_physical_size.width = geometry[0] = w;
359 screen_physical_size.height = geometry[1] = h;
360 PROP_SETA32(RootWindow(ob_display, ob_screen),
361 net_desktop_geometry, cardinal, geometry, 2);
362
363 if (ob_state() == OB_STATE_STARTING)
364 return;
365
366 screen_update_areas();
367 dock_configure();
368
369 for (it = client_list; it; it = g_list_next(it))
370 client_move_onscreen(it->data, FALSE);
371 }
372
373 void screen_set_num_desktops(guint num)
374 {
375 guint old;
376 gulong *viewport;
377 GList *it;
378
379 g_assert(num > 0);
380
381 if (screen_num_desktops == num) return;
382
383 old = screen_num_desktops;
384 screen_num_desktops = num;
385 PROP_SET32(RootWindow(ob_display, ob_screen),
386 net_number_of_desktops, cardinal, num);
387
388 /* set the viewport hint */
389 viewport = g_new0(gulong, num * 2);
390 PROP_SETA32(RootWindow(ob_display, ob_screen),
391 net_desktop_viewport, cardinal, viewport, num * 2);
392 g_free(viewport);
393
394 /* the number of rows/columns will differ */
395 screen_update_layout();
396
397 /* may be some unnamed desktops that we need to fill in with names */
398 screen_update_desktop_names();
399
400 /* move windows on desktops that will no longer exist! */
401 for (it = client_list; it; it = g_list_next(it)) {
402 ObClient *c = it->data;
403 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
404 client_set_desktop(c, num - 1, FALSE);
405 }
406
407 /* change our struts/area to match (after moving windows) */
408 screen_update_areas();
409
410 /* change our desktop if we're on one that no longer exists! */
411 if (screen_desktop >= screen_num_desktops)
412 screen_set_desktop(num - 1);
413 }
414
415 void screen_set_desktop(guint num)
416 {
417 GList *it;
418 guint old;
419
420 g_assert(num < screen_num_desktops);
421
422 old = screen_desktop;
423 screen_desktop = num;
424 PROP_SET32(RootWindow(ob_display, ob_screen),
425 net_current_desktop, cardinal, num);
426
427 if (old == num) return;
428
429 screen_last_desktop = old;
430
431 ob_debug("Moving to desktop %d\n", num+1);
432
433 if (moveresize_client)
434 client_set_desktop(moveresize_client, num, TRUE);
435
436 /* show windows before hiding the rest to lessen the enter/leave events */
437
438 /* show/hide windows from top to bottom */
439 for (it = stacking_list; it; it = g_list_next(it)) {
440 if (WINDOW_IS_CLIENT(it->data)) {
441 ObClient *c = it->data;
442 client_show(c);
443 }
444 }
445
446 /* hide windows from bottom to top */
447 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
448 if (WINDOW_IS_CLIENT(it->data)) {
449 ObClient *c = it->data;
450 client_hide(c);
451 }
452 }
453
454 event_ignore_queued_enters();
455
456 focus_hilite = focus_fallback_target(TRUE, focus_client);
457 if (focus_hilite) {
458 frame_adjust_focus(focus_hilite->frame, TRUE);
459
460 /*!
461 When this focus_client check is not used, you can end up with
462 races, as demonstrated with gnome-panel, sometimes the window
463 you click on another desktop ends up losing focus cuz of the
464 focus change here.
465 */
466 /*if (!focus_client)*/
467 client_focus(focus_hilite);
468 }
469 }
470
471 static void get_row_col(guint d, guint *r, guint *c)
472 {
473 switch (screen_desktop_layout.orientation) {
474 case OB_ORIENTATION_HORZ:
475 switch (screen_desktop_layout.start_corner) {
476 case OB_CORNER_TOPLEFT:
477 *r = d / screen_desktop_layout.columns;
478 *c = d % screen_desktop_layout.columns;
479 break;
480 case OB_CORNER_BOTTOMLEFT:
481 *r = screen_desktop_layout.rows - 1 -
482 d / screen_desktop_layout.columns;
483 *c = d % screen_desktop_layout.columns;
484 break;
485 case OB_CORNER_TOPRIGHT:
486 *r = d / screen_desktop_layout.columns;
487 *c = screen_desktop_layout.columns - 1 -
488 d % screen_desktop_layout.columns;
489 break;
490 case OB_CORNER_BOTTOMRIGHT:
491 *r = screen_desktop_layout.rows - 1 -
492 d / screen_desktop_layout.columns;
493 *c = screen_desktop_layout.columns - 1 -
494 d % screen_desktop_layout.columns;
495 break;
496 }
497 break;
498 case OB_ORIENTATION_VERT:
499 switch (screen_desktop_layout.start_corner) {
500 case OB_CORNER_TOPLEFT:
501 *r = d % screen_desktop_layout.rows;
502 *c = d / screen_desktop_layout.rows;
503 break;
504 case OB_CORNER_BOTTOMLEFT:
505 *r = screen_desktop_layout.rows - 1 -
506 d % screen_desktop_layout.rows;
507 *c = d / screen_desktop_layout.rows;
508 break;
509 case OB_CORNER_TOPRIGHT:
510 *r = d % screen_desktop_layout.rows;
511 *c = screen_desktop_layout.columns - 1 -
512 d / screen_desktop_layout.rows;
513 break;
514 case OB_CORNER_BOTTOMRIGHT:
515 *r = screen_desktop_layout.rows - 1 -
516 d % screen_desktop_layout.rows;
517 *c = screen_desktop_layout.columns - 1 -
518 d / screen_desktop_layout.rows;
519 break;
520 }
521 break;
522 }
523 }
524
525 static guint translate_row_col(guint r, guint c)
526 {
527 switch (screen_desktop_layout.orientation) {
528 case OB_ORIENTATION_HORZ:
529 switch (screen_desktop_layout.start_corner) {
530 case OB_CORNER_TOPLEFT:
531 return r % screen_desktop_layout.rows *
532 screen_desktop_layout.columns +
533 c % screen_desktop_layout.columns;
534 case OB_CORNER_BOTTOMLEFT:
535 return (screen_desktop_layout.rows - 1 -
536 r % screen_desktop_layout.rows) *
537 screen_desktop_layout.columns +
538 c % screen_desktop_layout.columns;
539 case OB_CORNER_TOPRIGHT:
540 return r % screen_desktop_layout.rows *
541 screen_desktop_layout.columns +
542 (screen_desktop_layout.columns - 1 -
543 c % screen_desktop_layout.columns);
544 case OB_CORNER_BOTTOMRIGHT:
545 return (screen_desktop_layout.rows - 1 -
546 r % screen_desktop_layout.rows) *
547 screen_desktop_layout.columns +
548 (screen_desktop_layout.columns - 1 -
549 c % screen_desktop_layout.columns);
550 }
551 case OB_ORIENTATION_VERT:
552 switch (screen_desktop_layout.start_corner) {
553 case OB_CORNER_TOPLEFT:
554 return c % screen_desktop_layout.columns *
555 screen_desktop_layout.rows +
556 r % screen_desktop_layout.rows;
557 case OB_CORNER_BOTTOMLEFT:
558 return c % screen_desktop_layout.columns *
559 screen_desktop_layout.rows +
560 (screen_desktop_layout.rows - 1 -
561 r % screen_desktop_layout.rows);
562 case OB_CORNER_TOPRIGHT:
563 return (screen_desktop_layout.columns - 1 -
564 c % screen_desktop_layout.columns) *
565 screen_desktop_layout.rows +
566 r % screen_desktop_layout.rows;
567 case OB_CORNER_BOTTOMRIGHT:
568 return (screen_desktop_layout.columns - 1 -
569 c % screen_desktop_layout.columns) *
570 screen_desktop_layout.rows +
571 (screen_desktop_layout.rows - 1 -
572 r % screen_desktop_layout.rows);
573 }
574 }
575 g_assert_not_reached();
576 return 0;
577 }
578
579 void screen_desktop_popup(guint d, gboolean show)
580 {
581 Rect *a;
582
583 if (!show) {
584 pager_popup_hide(desktop_cycle_popup);
585 } else {
586 a = screen_physical_area_monitor(0);
587 pager_popup_position(desktop_cycle_popup, CenterGravity,
588 a->x + a->width / 2, a->y + a->height / 2);
589 /* XXX the size and the font extents need to be related on some level
590 */
591 pager_popup_size(desktop_cycle_popup, POPUP_WIDTH, POPUP_HEIGHT);
592
593 pager_popup_set_text_align(desktop_cycle_popup, RR_JUSTIFY_CENTER);
594
595 pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
596 }
597 }
598
599 guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
600 gboolean dialog, gboolean done, gboolean cancel)
601 {
602 static gboolean first = TRUE;
603 static guint origd, d;
604 guint r, c;
605
606 if (cancel) {
607 d = origd;
608 goto done_cycle;
609 } else if (done && dialog) {
610 goto done_cycle;
611 }
612 if (first) {
613 first = FALSE;
614 d = origd = screen_desktop;
615 }
616
617 get_row_col(d, &r, &c);
618
619 if (linear) {
620 switch (dir) {
621 case OB_DIRECTION_EAST:
622 if (d < screen_num_desktops - 1)
623 ++d;
624 else if (wrap)
625 d = 0;
626 break;
627 case OB_DIRECTION_WEST:
628 if (d > 0)
629 --d;
630 else if (wrap)
631 d = screen_num_desktops - 1;
632 break;
633 default:
634 assert(0);
635 return screen_desktop;
636 }
637 } else {
638 switch (dir) {
639 case OB_DIRECTION_EAST:
640 ++c;
641 if (c >= screen_desktop_layout.columns) {
642 if (wrap) {
643 c = 0;
644 } else {
645 d = screen_desktop;
646 goto show_cycle_dialog;
647 }
648 }
649 d = translate_row_col(r, c);
650 if (d >= screen_num_desktops) {
651 if (wrap) {
652 ++c;
653 } else {
654 d = screen_desktop;
655 goto show_cycle_dialog;
656 }
657 }
658 break;
659 case OB_DIRECTION_WEST:
660 --c;
661 if (c >= screen_desktop_layout.columns) {
662 if (wrap) {
663 c = screen_desktop_layout.columns - 1;
664 } else {
665 d = screen_desktop;
666 goto show_cycle_dialog;
667 }
668 }
669 d = translate_row_col(r, c);
670 if (d >= screen_num_desktops) {
671 if (wrap) {
672 --c;
673 } else {
674 d = screen_desktop;
675 goto show_cycle_dialog;
676 }
677 }
678 break;
679 case OB_DIRECTION_SOUTH:
680 ++r;
681 if (r >= screen_desktop_layout.rows) {
682 if (wrap) {
683 r = 0;
684 } else {
685 d = screen_desktop;
686 goto show_cycle_dialog;
687 }
688 }
689 d = translate_row_col(r, c);
690 if (d >= screen_num_desktops) {
691 if (wrap) {
692 ++r;
693 } else {
694 d = screen_desktop;
695 goto show_cycle_dialog;
696 }
697 }
698 break;
699 case OB_DIRECTION_NORTH:
700 --r;
701 if (r >= screen_desktop_layout.rows) {
702 if (wrap) {
703 r = screen_desktop_layout.rows - 1;
704 } else {
705 d = screen_desktop;
706 goto show_cycle_dialog;
707 }
708 }
709 d = translate_row_col(r, c);
710 if (d >= screen_num_desktops) {
711 if (wrap) {
712 --r;
713 } else {
714 d = screen_desktop;
715 goto show_cycle_dialog;
716 }
717 }
718 break;
719 default:
720 assert(0);
721 return d = screen_desktop;
722 }
723
724 d = translate_row_col(r, c);
725 }
726
727 show_cycle_dialog:
728 if (dialog) {
729 screen_desktop_popup(d, TRUE);
730 return d;
731 }
732
733 done_cycle:
734 first = TRUE;
735
736 screen_desktop_popup(0, FALSE);
737
738 return d;
739 }
740
741 void screen_update_layout()
742 {
743 ObOrientation orient;
744 ObCorner corner;
745 guint rows;
746 guint cols;
747 guint32 *data;
748 guint num;
749 gboolean valid = FALSE;
750
751 if (PROP_GETA32(RootWindow(ob_display, ob_screen),
752 net_desktop_layout, cardinal, &data, &num)) {
753 if (num == 3 || num == 4) {
754
755 if (data[0] == prop_atoms.net_wm_orientation_vert)
756 orient = OB_ORIENTATION_VERT;
757 else if (data[0] == prop_atoms.net_wm_orientation_horz)
758 orient = OB_ORIENTATION_HORZ;
759 else
760 goto screen_update_layout_bail;
761
762 if (num < 4)
763 corner = OB_CORNER_TOPLEFT;
764 else {
765 if (data[3] == prop_atoms.net_wm_topleft)
766 corner = OB_CORNER_TOPLEFT;
767 else if (data[3] == prop_atoms.net_wm_topright)
768 corner = OB_CORNER_TOPRIGHT;
769 else if (data[3] == prop_atoms.net_wm_bottomright)
770 corner = OB_CORNER_BOTTOMRIGHT;
771 else if (data[3] == prop_atoms.net_wm_bottomleft)
772 corner = OB_CORNER_BOTTOMLEFT;
773 else
774 goto screen_update_layout_bail;
775 }
776
777 cols = data[1];
778 rows = data[2];
779
780 /* fill in a zero rows/columns */
781 if ((cols == 0 && rows == 0)) { /* both 0's is bad data.. */
782 goto screen_update_layout_bail;
783 } else {
784 if (cols == 0) {
785 cols = screen_num_desktops / rows;
786 if (rows * cols < screen_num_desktops)
787 cols++;
788 if (rows * cols >= screen_num_desktops + cols)
789 rows--;
790 } else if (rows == 0) {
791 rows = screen_num_desktops / cols;
792 if (cols * rows < screen_num_desktops)
793 rows++;
794 if (cols * rows >= screen_num_desktops + rows)
795 cols--;
796 }
797 }
798
799 /* bounds checking */
800 if (orient == OB_ORIENTATION_HORZ) {
801 cols = MIN(screen_num_desktops, cols);
802 rows = MIN(rows, (screen_num_desktops + cols - 1) / cols);
803 cols = screen_num_desktops / rows +
804 !!(screen_num_desktops % rows);
805 } else {
806 rows = MIN(screen_num_desktops, rows);
807 cols = MIN(cols, (screen_num_desktops + rows - 1) / rows);
808 rows = screen_num_desktops / cols +
809 !!(screen_num_desktops % cols);
810 }
811
812 valid = TRUE;
813 }
814 screen_update_layout_bail:
815 g_free(data);
816 }
817
818 if (!valid) {
819 /* defaults */
820 orient = OB_ORIENTATION_HORZ;
821 corner = OB_CORNER_TOPLEFT;
822 rows = 1;
823 cols = screen_num_desktops;
824 }
825
826 screen_desktop_layout.orientation = orient;
827 screen_desktop_layout.start_corner = corner;
828 screen_desktop_layout.rows = rows;
829 screen_desktop_layout.columns = cols;
830 }
831
832 void screen_update_desktop_names()
833 {
834 guint i;
835
836 /* empty the array */
837 g_strfreev(screen_desktop_names);
838 screen_desktop_names = NULL;
839
840 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
841 net_desktop_names, utf8, &screen_desktop_names))
842 for (i = 0; screen_desktop_names[i] && i <= screen_num_desktops; ++i);
843 else
844 i = 0;
845 if (i <= screen_num_desktops) {
846 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
847 screen_num_desktops + 1);
848 screen_desktop_names[screen_num_desktops] = NULL;
849 for (; i < screen_num_desktops; ++i)
850 screen_desktop_names[i] = g_strdup_printf("Desktop %i", i + 1);
851 }
852 }
853
854 void screen_show_desktop(gboolean show)
855 {
856 GList *it;
857
858 if (show == screen_showing_desktop) return; /* no change */
859
860 screen_showing_desktop = show;
861
862 if (show) {
863 /* bottom to top */
864 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
865 if (WINDOW_IS_CLIENT(it->data)) {
866 ObClient *client = it->data;
867 client_showhide(client);
868 }
869 }
870 } else {
871 /* top to bottom */
872 for (it = stacking_list; it; it = g_list_next(it)) {
873 if (WINDOW_IS_CLIENT(it->data)) {
874 ObClient *client = it->data;
875 client_showhide(client);
876 }
877 }
878 }
879
880 if (show) {
881 /* focus desktop */
882 for (it = focus_order; it; it = g_list_next(it)) {
883 ObClient *c = it->data;
884 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
885 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
886 client_focus(it->data))
887 break;
888 }
889 } else {
890 focus_fallback(TRUE);
891 }
892
893 show = !!show; /* make it boolean */
894 PROP_SET32(RootWindow(ob_display, ob_screen),
895 net_showing_desktop, cardinal, show);
896 }
897
898 void screen_install_colormap(ObClient *client, gboolean install)
899 {
900 XWindowAttributes wa;
901
902 if (client == NULL) {
903 if (install)
904 XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
905 else
906 XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
907 } else {
908 if (XGetWindowAttributes(ob_display, client->window, &wa) &&
909 wa.colormap != None) {
910 xerror_set_ignore(TRUE);
911 if (install)
912 XInstallColormap(RrDisplay(ob_rr_inst), wa.colormap);
913 else
914 XUninstallColormap(RrDisplay(ob_rr_inst), wa.colormap);
915 xerror_set_ignore(FALSE);
916 }
917 }
918 }
919
920 static inline void
921 screen_area_add_strut_left(const StrutPartial *s, const Rect *monitor_area,
922 gint edge, Strut *ret)
923 {
924 if (s->left &&
925 ((s->left_end <= s->left_start) ||
926 (RECT_TOP(*monitor_area) < s->left_end &&
927 RECT_BOTTOM(*monitor_area) > s->left_start)))
928 ret->left = MAX(ret->left, edge);
929 }
930
931 static inline void
932 screen_area_add_strut_top(const StrutPartial *s, const Rect *monitor_area,
933 gint edge, Strut *ret)
934 {
935 if (s->top &&
936 ((s->top_end <= s->top_start) ||
937 (RECT_LEFT(*monitor_area) < s->top_end &&
938 RECT_RIGHT(*monitor_area) > s->top_start)))
939 ret->top = MAX(ret->top, edge);
940 }
941
942 static inline void
943 screen_area_add_strut_right(const StrutPartial *s, const Rect *monitor_area,
944 gint edge, Strut *ret)
945 {
946 if (s->right &&
947 ((s->right_end <= s->right_start) ||
948 (RECT_TOP(*monitor_area) < s->right_end &&
949 RECT_BOTTOM(*monitor_area) > s->right_start)))
950 ret->right = MAX(ret->right, edge);
951 }
952
953 static inline void
954 screen_area_add_strut_bottom(const StrutPartial *s, const Rect *monitor_area,
955 gint edge, Strut *ret)
956 {
957 if (s->bottom &&
958 ((s->bottom_end <= s->bottom_start) ||
959 (RECT_LEFT(*monitor_area) < s->bottom_end &&
960 RECT_RIGHT(*monitor_area) > s->bottom_start)))
961 ret->bottom = MAX(ret->bottom, edge);
962 }
963
964 void screen_update_areas()
965 {
966 guint i, x;
967 gulong *dims;
968 GList *it;
969 gint o;
970
971 g_free(monitor_area);
972 extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
973
974 if (area) {
975 for (i = 0; area[i]; ++i)
976 g_free(area[i]);
977 g_free(area);
978 }
979
980 area = g_new(Rect*, screen_num_desktops + 2);
981 for (i = 0; i < screen_num_desktops + 1; ++i)
982 area[i] = g_new0(Rect, screen_num_monitors + 1);
983 area[i] = NULL;
984
985 dims = g_new(gulong, 4 * screen_num_desktops);
986
987 for (i = 0; i < screen_num_desktops + 1; ++i) {
988 Strut *struts;
989 gint l, r, t, b;
990
991 struts = g_new0(Strut, screen_num_monitors);
992
993 /* calc the xinerama areas */
994 for (x = 0; x < screen_num_monitors; ++x) {
995 area[i][x] = monitor_area[x];
996 if (x == 0) {
997 l = monitor_area[x].x;
998 t = monitor_area[x].y;
999 r = monitor_area[x].x + monitor_area[x].width - 1;
1000 b = monitor_area[x].y + monitor_area[x].height - 1;
1001 } else {
1002 l = MIN(l, monitor_area[x].x);
1003 t = MIN(t, monitor_area[x].y);
1004 r = MAX(r, monitor_area[x].x + monitor_area[x].width - 1);
1005 b = MAX(b, monitor_area[x].y + monitor_area[x].height - 1);
1006 }
1007 }
1008 RECT_SET(area[i][x], l, t, r - l + 1, b - t + 1);
1009
1010 /* apply the struts */
1011
1012 /* find the left-most xin heads, i do this in 2 loops :| */
1013 o = area[i][0].x;
1014 for (x = 1; x < screen_num_monitors; ++x)
1015 o = MIN(o, area[i][x].x);
1016
1017 for (x = 0; x < screen_num_monitors; ++x) {
1018 for (it = client_list; it; it = g_list_next(it)) {
1019 ObClient *c = it->data;
1020 screen_area_add_strut_left(&c->strut,
1021 &monitor_area[x],
1022 o + c->strut.left - area[i][x].x,
1023 &struts[x]);
1024 }
1025 screen_area_add_strut_left(&dock_strut,
1026 &monitor_area[x],
1027 o + dock_strut.left - area[i][x].x,
1028 &struts[x]);
1029
1030 area[i][x].x += struts[x].left;
1031 area[i][x].width -= struts[x].left;
1032 }
1033
1034 /* find the top-most xin heads, i do this in 2 loops :| */
1035 o = area[i][0].y;
1036 for (x = 1; x < screen_num_monitors; ++x)
1037 o = MIN(o, area[i][x].y);
1038
1039 for (x = 0; x < screen_num_monitors; ++x) {
1040 for (it = client_list; it; it = g_list_next(it)) {
1041 ObClient *c = it->data;
1042 screen_area_add_strut_top(&c->strut,
1043 &monitor_area[x],
1044 o + c->strut.top - area[i][x].y,
1045 &struts[x]);
1046 }
1047 screen_area_add_strut_top(&dock_strut,
1048 &monitor_area[x],
1049 o + dock_strut.top - area[i][x].y,
1050 &struts[x]);
1051
1052 area[i][x].y += struts[x].top;
1053 area[i][x].height -= struts[x].top;
1054 }
1055
1056 /* find the right-most xin heads, i do this in 2 loops :| */
1057 o = area[i][0].x + area[i][0].width - 1;
1058 for (x = 1; x < screen_num_monitors; ++x)
1059 o = MAX(o, area[i][x].x + area[i][x].width - 1);
1060
1061 for (x = 0; x < screen_num_monitors; ++x) {
1062 for (it = client_list; it; it = g_list_next(it)) {
1063 ObClient *c = it->data;
1064 screen_area_add_strut_right(&c->strut,
1065 &monitor_area[x],
1066 (area[i][x].x +
1067 area[i][x].width - 1) -
1068 (o - c->strut.right),
1069 &struts[x]);
1070 }
1071 screen_area_add_strut_right(&dock_strut,
1072 &monitor_area[x],
1073 (area[i][x].x +
1074 area[i][x].width - 1) -
1075 (o - dock_strut.right),
1076 &struts[x]);
1077
1078 area[i][x].width -= struts[x].right;
1079 }
1080
1081 /* find the bottom-most xin heads, i do this in 2 loops :| */
1082 o = area[i][0].y + area[i][0].height - 1;
1083 for (x = 1; x < screen_num_monitors; ++x)
1084 o = MAX(o, area[i][x].y + area[i][x].height - 1);
1085
1086 for (x = 0; x < screen_num_monitors; ++x) {
1087 for (it = client_list; it; it = g_list_next(it)) {
1088 ObClient *c = it->data;
1089 screen_area_add_strut_bottom(&c->strut,
1090 &monitor_area[x],
1091 (area[i][x].y +
1092 area[i][x].height - 1) - \
1093 (o - c->strut.bottom),
1094 &struts[x]);
1095 }
1096 screen_area_add_strut_bottom(&dock_strut,
1097 &monitor_area[x],
1098 (area[i][x].y +
1099 area[i][x].height - 1) - \
1100 (o - dock_strut.bottom),
1101 &struts[x]);
1102
1103 area[i][x].height -= struts[x].bottom;
1104 }
1105
1106 l = RECT_LEFT(area[i][0]);
1107 t = RECT_TOP(area[i][0]);
1108 r = RECT_RIGHT(area[i][0]);
1109 b = RECT_BOTTOM(area[i][0]);
1110 for (x = 1; x < screen_num_monitors; ++x) {
1111 l = MIN(l, RECT_LEFT(area[i][x]));
1112 t = MIN(l, RECT_TOP(area[i][x]));
1113 r = MAX(r, RECT_RIGHT(area[i][x]));
1114 b = MAX(b, RECT_BOTTOM(area[i][x]));
1115 }
1116 RECT_SET(area[i][screen_num_monitors], l, t,
1117 r - l + 1, b - t + 1);
1118
1119 /* XXX optimize when this is run? */
1120
1121 /* the area has changed, adjust all the maximized
1122 windows */
1123 for (it = client_list; it; it = g_list_next(it)) {
1124 ObClient *c = it->data;
1125 if (i < screen_num_desktops) {
1126 if (c->desktop == i)
1127 client_reconfigure(c);
1128 } else if (c->desktop == DESKTOP_ALL)
1129 client_reconfigure(c);
1130 }
1131 if (i < screen_num_desktops) {
1132 /* don't set these for the 'all desktops' area */
1133 dims[(i * 4) + 0] = area[i][screen_num_monitors].x;
1134 dims[(i * 4) + 1] = area[i][screen_num_monitors].y;
1135 dims[(i * 4) + 2] = area[i][screen_num_monitors].width;
1136 dims[(i * 4) + 3] = area[i][screen_num_monitors].height;
1137 }
1138
1139 g_free(struts);
1140 }
1141
1142 PROP_SETA32(RootWindow(ob_display, ob_screen), net_workarea, cardinal,
1143 dims, 4 * screen_num_desktops);
1144
1145 g_free(dims);
1146 }
1147
1148 Rect *screen_area(guint desktop)
1149 {
1150 return screen_area_monitor(desktop, screen_num_monitors);
1151 }
1152
1153 Rect *screen_area_monitor(guint desktop, guint head)
1154 {
1155 if (head > screen_num_monitors)
1156 return NULL;
1157 if (desktop >= screen_num_desktops) {
1158 if (desktop == DESKTOP_ALL)
1159 return &area[screen_num_desktops][head];
1160 return NULL;
1161 }
1162 return &area[desktop][head];
1163 }
1164
1165 guint screen_find_monitor(Rect *search)
1166 {
1167 guint i;
1168 guint most = 0;
1169 guint mostv = 0;
1170
1171 for (i = 0; i < screen_num_monitors; ++i) {
1172 Rect *area = screen_physical_area_monitor(i);
1173 if (RECT_INTERSECTS_RECT(*area, *search)) {
1174 Rect r;
1175 guint v;
1176
1177 RECT_SET_INTERSECTION(r, *area, *search);
1178 v = r.width * r.height;
1179
1180 if (v > mostv) {
1181 mostv = v;
1182 most = i;
1183 }
1184 }
1185 }
1186 return most;
1187 }
1188
1189 Rect *screen_physical_area()
1190 {
1191 return screen_physical_area_monitor(screen_num_monitors);
1192 }
1193
1194 Rect *screen_physical_area_monitor(guint head)
1195 {
1196 if (head > screen_num_monitors)
1197 return NULL;
1198 return &monitor_area[head];
1199 }
1200
1201 void screen_set_root_cursor()
1202 {
1203 if (sn_app_starting())
1204 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1205 ob_cursor(OB_CURSOR_BUSY));
1206 else
1207 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1208 ob_cursor(OB_CURSOR_POINTER));
1209 }
1210
1211 gboolean screen_pointer_pos(gint *x, gint *y)
1212 {
1213 Window w;
1214 gint i;
1215 guint u;
1216
1217 return !!XQueryPointer(ob_display, RootWindow(ob_display, ob_screen),
1218 &w, &w, x, y, &i, &i, &u);
1219 }
my patches for the openbox window manager
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