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