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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 guint32 d;
304 /* start on the current desktop when a wm was already running */
305 if (PROP_GET32(RootWindow(ob_display, ob_screen),
306 net_current_desktop, cardinal, &d) &&
307 d < screen_num_desktops)
308 {
309 screen_set_desktop(d);
310 } else
311 screen_set_desktop(MIN(config_screen_firstdesk,
312 screen_num_desktops) - 1);
313
314 /* don't start in showing-desktop mode */
315 screen_showing_desktop = FALSE;
316 PROP_SET32(RootWindow(ob_display, ob_screen),
317 net_showing_desktop, cardinal, screen_showing_desktop);
318
319 screen_update_layout();
320 }
321 }
322
323 void screen_shutdown(gboolean reconfig)
324 {
325 Rect **r;
326
327 pager_popup_free(desktop_cycle_popup);
328
329 if (!reconfig) {
330 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
331 NoEventMask);
332
333 /* we're not running here no more! */
334 PROP_ERASE(RootWindow(ob_display, ob_screen), openbox_pid);
335 /* not without us */
336 PROP_ERASE(RootWindow(ob_display, ob_screen), net_supported);
337 /* don't keep this mode */
338 PROP_ERASE(RootWindow(ob_display, ob_screen), net_showing_desktop);
339
340 XDestroyWindow(ob_display, screen_support_win);
341 }
342
343 g_strfreev(screen_desktop_names);
344 screen_desktop_names = NULL;
345 for (r = area; *r; ++r)
346 g_free(*r);
347 g_free(area);
348 area = NULL;
349 }
350
351 void screen_resize()
352 {
353 static gint oldw = 0, oldh = 0;
354 gint w, h;
355 GList *it;
356 gulong geometry[2];
357
358 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
359 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
360
361 if (w == oldw && h == oldh) return;
362
363 oldw = w; oldh = h;
364
365 /* Set the _NET_DESKTOP_GEOMETRY hint */
366 screen_physical_size.width = geometry[0] = w;
367 screen_physical_size.height = geometry[1] = h;
368 PROP_SETA32(RootWindow(ob_display, ob_screen),
369 net_desktop_geometry, cardinal, geometry, 2);
370
371 if (ob_state() == OB_STATE_STARTING)
372 return;
373
374 screen_update_areas();
375 dock_configure();
376
377 for (it = client_list; it; it = g_list_next(it))
378 client_move_onscreen(it->data, FALSE);
379 }
380
381 void screen_set_num_desktops(guint num)
382 {
383 guint old;
384 gulong *viewport;
385 GList *it;
386
387 g_assert(num > 0);
388
389 if (screen_num_desktops == num) return;
390
391 old = screen_num_desktops;
392 screen_num_desktops = num;
393 PROP_SET32(RootWindow(ob_display, ob_screen),
394 net_number_of_desktops, cardinal, num);
395
396 /* set the viewport hint */
397 viewport = g_new0(gulong, num * 2);
398 PROP_SETA32(RootWindow(ob_display, ob_screen),
399 net_desktop_viewport, cardinal, viewport, num * 2);
400 g_free(viewport);
401
402 /* the number of rows/columns will differ */
403 screen_update_layout();
404
405 /* may be some unnamed desktops that we need to fill in with names */
406 screen_update_desktop_names();
407
408 /* move windows on desktops that will no longer exist! */
409 for (it = client_list; it; it = g_list_next(it)) {
410 ObClient *c = it->data;
411 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
412 client_set_desktop(c, num - 1, FALSE);
413 }
414
415 /* change our struts/area to match (after moving windows) */
416 screen_update_areas();
417
418 /* change our desktop if we're on one that no longer exists! */
419 if (screen_desktop >= screen_num_desktops)
420 screen_set_desktop(num - 1);
421 }
422
423 void screen_set_desktop(guint num)
424 {
425 ObClient *c;
426 GList *it;
427 guint old;
428
429 g_assert(num < screen_num_desktops);
430
431 old = screen_desktop;
432 screen_desktop = num;
433 PROP_SET32(RootWindow(ob_display, ob_screen),
434 net_current_desktop, cardinal, num);
435
436 if (old == num) return;
437
438 screen_last_desktop = old;
439
440 ob_debug("Moving to desktop %d\n", num+1);
441
442 if (moveresize_client)
443 client_set_desktop(moveresize_client, num, TRUE);
444
445 /* show windows before hiding the rest to lessen the enter/leave events */
446
447 /* show/hide windows from top to bottom */
448 for (it = stacking_list; it; it = g_list_next(it)) {
449 if (WINDOW_IS_CLIENT(it->data)) {
450 ObClient *c = it->data;
451 client_show(c);
452 }
453 }
454
455 /* hide windows from bottom to top */
456 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
457 if (WINDOW_IS_CLIENT(it->data)) {
458 ObClient *c = it->data;
459 client_hide(c);
460 }
461 }
462
463 /* have to try focus here because when you leave an empty desktop
464 there is no focus out to watch for */
465 if ((c = focus_fallback_target(TRUE, focus_client))) {
466 /* reduce flicker by hiliting now rather than waiting for the server
467 FocusIn event */
468 frame_adjust_focus(c->frame, TRUE);
469 client_focus(c);
470 }
471
472 event_ignore_queued_enters();
473 }
474
475 static void get_row_col(guint d, guint *r, guint *c)
476 {
477 switch (screen_desktop_layout.orientation) {
478 case OB_ORIENTATION_HORZ:
479 switch (screen_desktop_layout.start_corner) {
480 case OB_CORNER_TOPLEFT:
481 *r = d / screen_desktop_layout.columns;
482 *c = d % screen_desktop_layout.columns;
483 break;
484 case OB_CORNER_BOTTOMLEFT:
485 *r = screen_desktop_layout.rows - 1 -
486 d / screen_desktop_layout.columns;
487 *c = d % screen_desktop_layout.columns;
488 break;
489 case OB_CORNER_TOPRIGHT:
490 *r = d / screen_desktop_layout.columns;
491 *c = screen_desktop_layout.columns - 1 -
492 d % screen_desktop_layout.columns;
493 break;
494 case OB_CORNER_BOTTOMRIGHT:
495 *r = screen_desktop_layout.rows - 1 -
496 d / screen_desktop_layout.columns;
497 *c = screen_desktop_layout.columns - 1 -
498 d % screen_desktop_layout.columns;
499 break;
500 }
501 break;
502 case OB_ORIENTATION_VERT:
503 switch (screen_desktop_layout.start_corner) {
504 case OB_CORNER_TOPLEFT:
505 *r = d % screen_desktop_layout.rows;
506 *c = d / screen_desktop_layout.rows;
507 break;
508 case OB_CORNER_BOTTOMLEFT:
509 *r = screen_desktop_layout.rows - 1 -
510 d % screen_desktop_layout.rows;
511 *c = d / screen_desktop_layout.rows;
512 break;
513 case OB_CORNER_TOPRIGHT:
514 *r = d % screen_desktop_layout.rows;
515 *c = screen_desktop_layout.columns - 1 -
516 d / screen_desktop_layout.rows;
517 break;
518 case OB_CORNER_BOTTOMRIGHT:
519 *r = screen_desktop_layout.rows - 1 -
520 d % screen_desktop_layout.rows;
521 *c = screen_desktop_layout.columns - 1 -
522 d / screen_desktop_layout.rows;
523 break;
524 }
525 break;
526 }
527 }
528
529 static guint translate_row_col(guint r, guint c)
530 {
531 switch (screen_desktop_layout.orientation) {
532 case OB_ORIENTATION_HORZ:
533 switch (screen_desktop_layout.start_corner) {
534 case OB_CORNER_TOPLEFT:
535 return r % screen_desktop_layout.rows *
536 screen_desktop_layout.columns +
537 c % screen_desktop_layout.columns;
538 case OB_CORNER_BOTTOMLEFT:
539 return (screen_desktop_layout.rows - 1 -
540 r % screen_desktop_layout.rows) *
541 screen_desktop_layout.columns +
542 c % screen_desktop_layout.columns;
543 case OB_CORNER_TOPRIGHT:
544 return r % screen_desktop_layout.rows *
545 screen_desktop_layout.columns +
546 (screen_desktop_layout.columns - 1 -
547 c % screen_desktop_layout.columns);
548 case OB_CORNER_BOTTOMRIGHT:
549 return (screen_desktop_layout.rows - 1 -
550 r % screen_desktop_layout.rows) *
551 screen_desktop_layout.columns +
552 (screen_desktop_layout.columns - 1 -
553 c % screen_desktop_layout.columns);
554 }
555 case OB_ORIENTATION_VERT:
556 switch (screen_desktop_layout.start_corner) {
557 case OB_CORNER_TOPLEFT:
558 return c % screen_desktop_layout.columns *
559 screen_desktop_layout.rows +
560 r % screen_desktop_layout.rows;
561 case OB_CORNER_BOTTOMLEFT:
562 return c % screen_desktop_layout.columns *
563 screen_desktop_layout.rows +
564 (screen_desktop_layout.rows - 1 -
565 r % screen_desktop_layout.rows);
566 case OB_CORNER_TOPRIGHT:
567 return (screen_desktop_layout.columns - 1 -
568 c % screen_desktop_layout.columns) *
569 screen_desktop_layout.rows +
570 r % screen_desktop_layout.rows;
571 case OB_CORNER_BOTTOMRIGHT:
572 return (screen_desktop_layout.columns - 1 -
573 c % screen_desktop_layout.columns) *
574 screen_desktop_layout.rows +
575 (screen_desktop_layout.rows - 1 -
576 r % screen_desktop_layout.rows);
577 }
578 }
579 g_assert_not_reached();
580 return 0;
581 }
582
583 void screen_desktop_popup(guint d, gboolean show)
584 {
585 Rect *a;
586
587 if (!show) {
588 pager_popup_hide(desktop_cycle_popup);
589 } else {
590 a = screen_physical_area_monitor(0);
591 pager_popup_position(desktop_cycle_popup, CenterGravity,
592 a->x + a->width / 2, a->y + a->height / 2);
593 /* XXX the size and the font extents need to be related on some level
594 */
595 pager_popup_size(desktop_cycle_popup, POPUP_WIDTH, POPUP_HEIGHT);
596
597 pager_popup_set_text_align(desktop_cycle_popup, RR_JUSTIFY_CENTER);
598
599 pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
600 }
601 }
602
603 guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
604 gboolean dialog, gboolean done, gboolean cancel)
605 {
606 static gboolean first = TRUE;
607 static guint origd, d;
608 guint r, c;
609
610 if (cancel) {
611 d = origd;
612 goto done_cycle;
613 } else if (done && dialog) {
614 goto done_cycle;
615 }
616 if (first) {
617 first = FALSE;
618 d = origd = screen_desktop;
619 }
620
621 get_row_col(d, &r, &c);
622
623 if (linear) {
624 switch (dir) {
625 case OB_DIRECTION_EAST:
626 if (d < screen_num_desktops - 1)
627 ++d;
628 else if (wrap)
629 d = 0;
630 break;
631 case OB_DIRECTION_WEST:
632 if (d > 0)
633 --d;
634 else if (wrap)
635 d = screen_num_desktops - 1;
636 break;
637 default:
638 assert(0);
639 return screen_desktop;
640 }
641 } else {
642 switch (dir) {
643 case OB_DIRECTION_EAST:
644 ++c;
645 if (c >= screen_desktop_layout.columns) {
646 if (wrap) {
647 c = 0;
648 } else {
649 d = screen_desktop;
650 goto show_cycle_dialog;
651 }
652 }
653 d = translate_row_col(r, c);
654 if (d >= screen_num_desktops) {
655 if (wrap) {
656 ++c;
657 } else {
658 d = screen_desktop;
659 goto show_cycle_dialog;
660 }
661 }
662 break;
663 case OB_DIRECTION_WEST:
664 --c;
665 if (c >= screen_desktop_layout.columns) {
666 if (wrap) {
667 c = screen_desktop_layout.columns - 1;
668 } else {
669 d = screen_desktop;
670 goto show_cycle_dialog;
671 }
672 }
673 d = translate_row_col(r, c);
674 if (d >= screen_num_desktops) {
675 if (wrap) {
676 --c;
677 } else {
678 d = screen_desktop;
679 goto show_cycle_dialog;
680 }
681 }
682 break;
683 case OB_DIRECTION_SOUTH:
684 ++r;
685 if (r >= screen_desktop_layout.rows) {
686 if (wrap) {
687 r = 0;
688 } else {
689 d = screen_desktop;
690 goto show_cycle_dialog;
691 }
692 }
693 d = translate_row_col(r, c);
694 if (d >= screen_num_desktops) {
695 if (wrap) {
696 ++r;
697 } else {
698 d = screen_desktop;
699 goto show_cycle_dialog;
700 }
701 }
702 break;
703 case OB_DIRECTION_NORTH:
704 --r;
705 if (r >= screen_desktop_layout.rows) {
706 if (wrap) {
707 r = screen_desktop_layout.rows - 1;
708 } else {
709 d = screen_desktop;
710 goto show_cycle_dialog;
711 }
712 }
713 d = translate_row_col(r, c);
714 if (d >= screen_num_desktops) {
715 if (wrap) {
716 --r;
717 } else {
718 d = screen_desktop;
719 goto show_cycle_dialog;
720 }
721 }
722 break;
723 default:
724 assert(0);
725 return d = screen_desktop;
726 }
727
728 d = translate_row_col(r, c);
729 }
730
731 show_cycle_dialog:
732 if (dialog) {
733 screen_desktop_popup(d, TRUE);
734 return d;
735 }
736
737 done_cycle:
738 first = TRUE;
739
740 screen_desktop_popup(0, FALSE);
741
742 return d;
743 }
744
745 void screen_update_layout()
746 {
747 ObOrientation orient;
748 ObCorner corner;
749 guint rows;
750 guint cols;
751 guint32 *data;
752 guint num;
753 gboolean valid = FALSE;
754
755 if (PROP_GETA32(RootWindow(ob_display, ob_screen),
756 net_desktop_layout, cardinal, &data, &num)) {
757 if (num == 3 || num == 4) {
758
759 if (data[0] == prop_atoms.net_wm_orientation_vert)
760 orient = OB_ORIENTATION_VERT;
761 else if (data[0] == prop_atoms.net_wm_orientation_horz)
762 orient = OB_ORIENTATION_HORZ;
763 else
764 goto screen_update_layout_bail;
765
766 if (num < 4)
767 corner = OB_CORNER_TOPLEFT;
768 else {
769 if (data[3] == prop_atoms.net_wm_topleft)
770 corner = OB_CORNER_TOPLEFT;
771 else if (data[3] == prop_atoms.net_wm_topright)
772 corner = OB_CORNER_TOPRIGHT;
773 else if (data[3] == prop_atoms.net_wm_bottomright)
774 corner = OB_CORNER_BOTTOMRIGHT;
775 else if (data[3] == prop_atoms.net_wm_bottomleft)
776 corner = OB_CORNER_BOTTOMLEFT;
777 else
778 goto screen_update_layout_bail;
779 }
780
781 cols = data[1];
782 rows = data[2];
783
784 /* fill in a zero rows/columns */
785 if ((cols == 0 && rows == 0)) { /* both 0's is bad data.. */
786 goto screen_update_layout_bail;
787 } else {
788 if (cols == 0) {
789 cols = screen_num_desktops / rows;
790 if (rows * cols < screen_num_desktops)
791 cols++;
792 if (rows * cols >= screen_num_desktops + cols)
793 rows--;
794 } else if (rows == 0) {
795 rows = screen_num_desktops / cols;
796 if (cols * rows < screen_num_desktops)
797 rows++;
798 if (cols * rows >= screen_num_desktops + rows)
799 cols--;
800 }
801 }
802
803 /* bounds checking */
804 if (orient == OB_ORIENTATION_HORZ) {
805 cols = MIN(screen_num_desktops, cols);
806 rows = MIN(rows, (screen_num_desktops + cols - 1) / cols);
807 cols = screen_num_desktops / rows +
808 !!(screen_num_desktops % rows);
809 } else {
810 rows = MIN(screen_num_desktops, rows);
811 cols = MIN(cols, (screen_num_desktops + rows - 1) / rows);
812 rows = screen_num_desktops / cols +
813 !!(screen_num_desktops % cols);
814 }
815
816 valid = TRUE;
817 }
818 screen_update_layout_bail:
819 g_free(data);
820 }
821
822 if (!valid) {
823 /* defaults */
824 orient = OB_ORIENTATION_HORZ;
825 corner = OB_CORNER_TOPLEFT;
826 rows = 1;
827 cols = screen_num_desktops;
828 }
829
830 screen_desktop_layout.orientation = orient;
831 screen_desktop_layout.start_corner = corner;
832 screen_desktop_layout.rows = rows;
833 screen_desktop_layout.columns = cols;
834 }
835
836 void screen_update_desktop_names()
837 {
838 guint i;
839
840 /* empty the array */
841 g_strfreev(screen_desktop_names);
842 screen_desktop_names = NULL;
843
844 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
845 net_desktop_names, utf8, &screen_desktop_names))
846 for (i = 0; screen_desktop_names[i] && i <= screen_num_desktops; ++i);
847 else
848 i = 0;
849 if (i <= screen_num_desktops) {
850 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
851 screen_num_desktops + 1);
852 screen_desktop_names[screen_num_desktops] = NULL;
853 for (; i < screen_num_desktops; ++i)
854 screen_desktop_names[i] = g_strdup_printf("Desktop %i", i + 1);
855 }
856 }
857
858 void screen_show_desktop(gboolean show)
859 {
860 GList *it;
861
862 if (show == screen_showing_desktop) return; /* no change */
863
864 screen_showing_desktop = show;
865
866 if (show) {
867 /* bottom to top */
868 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
869 if (WINDOW_IS_CLIENT(it->data)) {
870 ObClient *client = it->data;
871 client_showhide(client);
872 }
873 }
874 } else {
875 /* top to bottom */
876 for (it = stacking_list; it; it = g_list_next(it)) {
877 if (WINDOW_IS_CLIENT(it->data)) {
878 ObClient *client = it->data;
879 client_showhide(client);
880 }
881 }
882 }
883
884 if (show) {
885 /* focus desktop */
886 for (it = focus_order; it; it = g_list_next(it)) {
887 ObClient *c = it->data;
888 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
889 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
890 client_focus(it->data))
891 break;
892 }
893 } else {
894 ObClient *c;
895
896 /* use NULL for the "old" argument because the desktop was focused
897 and we don't want to fallback to the desktop by default */
898 if ((c = focus_fallback_target(TRUE, NULL)))
899 client_focus(c);
900 }
901
902 show = !!show; /* make it boolean */
903 PROP_SET32(RootWindow(ob_display, ob_screen),
904 net_showing_desktop, cardinal, show);
905 }
906
907 void screen_install_colormap(ObClient *client, gboolean install)
908 {
909 XWindowAttributes wa;
910
911 if (client == NULL) {
912 if (install)
913 XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
914 else
915 XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
916 } else {
917 if (XGetWindowAttributes(ob_display, client->window, &wa) &&
918 wa.colormap != None) {
919 xerror_set_ignore(TRUE);
920 if (install)
921 XInstallColormap(RrDisplay(ob_rr_inst), wa.colormap);
922 else
923 XUninstallColormap(RrDisplay(ob_rr_inst), wa.colormap);
924 xerror_set_ignore(FALSE);
925 }
926 }
927 }
928
929 static inline void
930 screen_area_add_strut_left(const StrutPartial *s, const Rect *monitor_area,
931 gint edge, Strut *ret)
932 {
933 if (s->left &&
934 ((s->left_end <= s->left_start) ||
935 (RECT_TOP(*monitor_area) < s->left_end &&
936 RECT_BOTTOM(*monitor_area) > s->left_start)))
937 ret->left = MAX(ret->left, edge);
938 }
939
940 static inline void
941 screen_area_add_strut_top(const StrutPartial *s, const Rect *monitor_area,
942 gint edge, Strut *ret)
943 {
944 if (s->top &&
945 ((s->top_end <= s->top_start) ||
946 (RECT_LEFT(*monitor_area) < s->top_end &&
947 RECT_RIGHT(*monitor_area) > s->top_start)))
948 ret->top = MAX(ret->top, edge);
949 }
950
951 static inline void
952 screen_area_add_strut_right(const StrutPartial *s, const Rect *monitor_area,
953 gint edge, Strut *ret)
954 {
955 if (s->right &&
956 ((s->right_end <= s->right_start) ||
957 (RECT_TOP(*monitor_area) < s->right_end &&
958 RECT_BOTTOM(*monitor_area) > s->right_start)))
959 ret->right = MAX(ret->right, edge);
960 }
961
962 static inline void
963 screen_area_add_strut_bottom(const StrutPartial *s, const Rect *monitor_area,
964 gint edge, Strut *ret)
965 {
966 if (s->bottom &&
967 ((s->bottom_end <= s->bottom_start) ||
968 (RECT_LEFT(*monitor_area) < s->bottom_end &&
969 RECT_RIGHT(*monitor_area) > s->bottom_start)))
970 ret->bottom = MAX(ret->bottom, edge);
971 }
972
973 void screen_update_areas()
974 {
975 guint i, x;
976 gulong *dims;
977 GList *it;
978 gint o;
979
980 g_free(monitor_area);
981 extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
982
983 if (area) {
984 for (i = 0; area[i]; ++i)
985 g_free(area[i]);
986 g_free(area);
987 }
988
989 area = g_new(Rect*, screen_num_desktops + 2);
990 for (i = 0; i < screen_num_desktops + 1; ++i)
991 area[i] = g_new0(Rect, screen_num_monitors + 1);
992 area[i] = NULL;
993
994 dims = g_new(gulong, 4 * screen_num_desktops);
995
996 for (i = 0; i < screen_num_desktops + 1; ++i) {
997 Strut *struts;
998 gint l, r, t, b;
999
1000 struts = g_new0(Strut, screen_num_monitors);
1001
1002 /* calc the xinerama areas */
1003 for (x = 0; x < screen_num_monitors; ++x) {
1004 area[i][x] = monitor_area[x];
1005 if (x == 0) {
1006 l = monitor_area[x].x;
1007 t = monitor_area[x].y;
1008 r = monitor_area[x].x + monitor_area[x].width - 1;
1009 b = monitor_area[x].y + monitor_area[x].height - 1;
1010 } else {
1011 l = MIN(l, monitor_area[x].x);
1012 t = MIN(t, monitor_area[x].y);
1013 r = MAX(r, monitor_area[x].x + monitor_area[x].width - 1);
1014 b = MAX(b, monitor_area[x].y + monitor_area[x].height - 1);
1015 }
1016 }
1017 RECT_SET(area[i][x], l, t, r - l + 1, b - t + 1);
1018
1019 /* apply the struts */
1020
1021 /* find the left-most xin heads, i do this in 2 loops :| */
1022 o = area[i][0].x;
1023 for (x = 1; x < screen_num_monitors; ++x)
1024 o = MIN(o, area[i][x].x);
1025
1026 for (x = 0; x < screen_num_monitors; ++x) {
1027 for (it = client_list; it; it = g_list_next(it)) {
1028 ObClient *c = it->data;
1029 screen_area_add_strut_left(&c->strut,
1030 &monitor_area[x],
1031 o + c->strut.left - area[i][x].x,
1032 &struts[x]);
1033 }
1034 screen_area_add_strut_left(&dock_strut,
1035 &monitor_area[x],
1036 o + dock_strut.left - area[i][x].x,
1037 &struts[x]);
1038
1039 area[i][x].x += struts[x].left;
1040 area[i][x].width -= struts[x].left;
1041 }
1042
1043 /* find the top-most xin heads, i do this in 2 loops :| */
1044 o = area[i][0].y;
1045 for (x = 1; x < screen_num_monitors; ++x)
1046 o = MIN(o, area[i][x].y);
1047
1048 for (x = 0; x < screen_num_monitors; ++x) {
1049 for (it = client_list; it; it = g_list_next(it)) {
1050 ObClient *c = it->data;
1051 screen_area_add_strut_top(&c->strut,
1052 &monitor_area[x],
1053 o + c->strut.top - area[i][x].y,
1054 &struts[x]);
1055 }
1056 screen_area_add_strut_top(&dock_strut,
1057 &monitor_area[x],
1058 o + dock_strut.top - area[i][x].y,
1059 &struts[x]);
1060
1061 area[i][x].y += struts[x].top;
1062 area[i][x].height -= struts[x].top;
1063 }
1064
1065 /* find the right-most xin heads, i do this in 2 loops :| */
1066 o = area[i][0].x + area[i][0].width - 1;
1067 for (x = 1; x < screen_num_monitors; ++x)
1068 o = MAX(o, area[i][x].x + area[i][x].width - 1);
1069
1070 for (x = 0; x < screen_num_monitors; ++x) {
1071 for (it = client_list; it; it = g_list_next(it)) {
1072 ObClient *c = it->data;
1073 screen_area_add_strut_right(&c->strut,
1074 &monitor_area[x],
1075 (area[i][x].x +
1076 area[i][x].width - 1) -
1077 (o - c->strut.right),
1078 &struts[x]);
1079 }
1080 screen_area_add_strut_right(&dock_strut,
1081 &monitor_area[x],
1082 (area[i][x].x +
1083 area[i][x].width - 1) -
1084 (o - dock_strut.right),
1085 &struts[x]);
1086
1087 area[i][x].width -= struts[x].right;
1088 }
1089
1090 /* find the bottom-most xin heads, i do this in 2 loops :| */
1091 o = area[i][0].y + area[i][0].height - 1;
1092 for (x = 1; x < screen_num_monitors; ++x)
1093 o = MAX(o, area[i][x].y + area[i][x].height - 1);
1094
1095 for (x = 0; x < screen_num_monitors; ++x) {
1096 for (it = client_list; it; it = g_list_next(it)) {
1097 ObClient *c = it->data;
1098 screen_area_add_strut_bottom(&c->strut,
1099 &monitor_area[x],
1100 (area[i][x].y +
1101 area[i][x].height - 1) - \
1102 (o - c->strut.bottom),
1103 &struts[x]);
1104 }
1105 screen_area_add_strut_bottom(&dock_strut,
1106 &monitor_area[x],
1107 (area[i][x].y +
1108 area[i][x].height - 1) - \
1109 (o - dock_strut.bottom),
1110 &struts[x]);
1111
1112 area[i][x].height -= struts[x].bottom;
1113 }
1114
1115 l = RECT_LEFT(area[i][0]);
1116 t = RECT_TOP(area[i][0]);
1117 r = RECT_RIGHT(area[i][0]);
1118 b = RECT_BOTTOM(area[i][0]);
1119 for (x = 1; x < screen_num_monitors; ++x) {
1120 l = MIN(l, RECT_LEFT(area[i][x]));
1121 t = MIN(l, RECT_TOP(area[i][x]));
1122 r = MAX(r, RECT_RIGHT(area[i][x]));
1123 b = MAX(b, RECT_BOTTOM(area[i][x]));
1124 }
1125 RECT_SET(area[i][screen_num_monitors], l, t,
1126 r - l + 1, b - t + 1);
1127
1128 /* XXX optimize when this is run? */
1129
1130 /* the area has changed, adjust all the maximized
1131 windows */
1132 for (it = client_list; it; it = g_list_next(it)) {
1133 ObClient *c = it->data;
1134 if (i < screen_num_desktops) {
1135 if (c->desktop == i)
1136 client_reconfigure(c);
1137 } else if (c->desktop == DESKTOP_ALL)
1138 client_reconfigure(c);
1139 }
1140 if (i < screen_num_desktops) {
1141 /* don't set these for the 'all desktops' area */
1142 dims[(i * 4) + 0] = area[i][screen_num_monitors].x;
1143 dims[(i * 4) + 1] = area[i][screen_num_monitors].y;
1144 dims[(i * 4) + 2] = area[i][screen_num_monitors].width;
1145 dims[(i * 4) + 3] = area[i][screen_num_monitors].height;
1146 }
1147
1148 g_free(struts);
1149 }
1150
1151 PROP_SETA32(RootWindow(ob_display, ob_screen), net_workarea, cardinal,
1152 dims, 4 * screen_num_desktops);
1153
1154 g_free(dims);
1155 }
1156
1157 Rect *screen_area(guint desktop)
1158 {
1159 return screen_area_monitor(desktop, screen_num_monitors);
1160 }
1161
1162 Rect *screen_area_monitor(guint desktop, guint head)
1163 {
1164 if (head > screen_num_monitors)
1165 return NULL;
1166 if (desktop >= screen_num_desktops) {
1167 if (desktop == DESKTOP_ALL)
1168 return &area[screen_num_desktops][head];
1169 return NULL;
1170 }
1171 return &area[desktop][head];
1172 }
1173
1174 guint screen_find_monitor(Rect *search)
1175 {
1176 guint i;
1177 guint most = 0;
1178 guint mostv = 0;
1179
1180 for (i = 0; i < screen_num_monitors; ++i) {
1181 Rect *area = screen_physical_area_monitor(i);
1182 if (RECT_INTERSECTS_RECT(*area, *search)) {
1183 Rect r;
1184 guint v;
1185
1186 RECT_SET_INTERSECTION(r, *area, *search);
1187 v = r.width * r.height;
1188
1189 if (v > mostv) {
1190 mostv = v;
1191 most = i;
1192 }
1193 }
1194 }
1195 return most;
1196 }
1197
1198 Rect *screen_physical_area()
1199 {
1200 return screen_physical_area_monitor(screen_num_monitors);
1201 }
1202
1203 Rect *screen_physical_area_monitor(guint head)
1204 {
1205 if (head > screen_num_monitors)
1206 return NULL;
1207 return &monitor_area[head];
1208 }
1209
1210 void screen_set_root_cursor()
1211 {
1212 if (sn_app_starting())
1213 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1214 ob_cursor(OB_CURSOR_BUSY));
1215 else
1216 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1217 ob_cursor(OB_CURSOR_POINTER));
1218 }
1219
1220 gboolean screen_pointer_pos(gint *x, gint *y)
1221 {
1222 Window w;
1223 gint i;
1224 guint u;
1225
1226 return !!XQueryPointer(ob_display, RootWindow(ob_display, ob_screen),
1227 &w, &w, x, y, &i, &i, &u);
1228 }
my patches for the openbox window manager
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