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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 #include "gettext.h"
38
39 #include <X11/Xlib.h>
40 #ifdef HAVE_UNISTD_H
41 # include <sys/types.h>
42 # include <unistd.h>
43 #endif
44 #include <assert.h>
45
46 /*! The event mask to grab on the root window */
47 #define ROOT_EVENTMASK (StructureNotifyMask | PropertyChangeMask | \
48 EnterWindowMask | LeaveWindowMask | \
49 SubstructureRedirectMask | FocusChangeMask | \
50 ButtonPressMask | ButtonReleaseMask | ButtonMotionMask)
51
52 guint screen_num_desktops;
53 guint screen_num_monitors;
54 guint screen_desktop;
55 guint screen_last_desktop;
56 Size screen_physical_size;
57 gboolean screen_showing_desktop;
58 DesktopLayout screen_desktop_layout;
59 gchar **screen_desktop_names;
60 Window screen_support_win;
61 Time screen_desktop_user_time = CurrentTime;
62
63 static Rect **area; /* array of desktop holding array of xinerama areas */
64 static Rect *monitor_area;
65
66 static ObPagerPopup *desktop_cycle_popup;
67
68 static gboolean replace_wm()
69 {
70 gchar *wm_sn;
71 Atom wm_sn_atom;
72 Window current_wm_sn_owner;
73 Time timestamp;
74
75 wm_sn = g_strdup_printf("WM_S%d", ob_screen);
76 wm_sn_atom = XInternAtom(ob_display, wm_sn, FALSE);
77 g_free(wm_sn);
78
79 current_wm_sn_owner = XGetSelectionOwner(ob_display, wm_sn_atom);
80 if (current_wm_sn_owner == screen_support_win)
81 current_wm_sn_owner = None;
82 if (current_wm_sn_owner) {
83 if (!ob_replace_wm) {
84 g_message(_("A window manager is already running on screen %d"),
85 ob_screen);
86 return FALSE;
87 }
88 xerror_set_ignore(TRUE);
89 xerror_occured = FALSE;
90
91 /* We want to find out when the current selection owner dies */
92 XSelectInput(ob_display, current_wm_sn_owner, StructureNotifyMask);
93 XSync(ob_display, FALSE);
94
95 xerror_set_ignore(FALSE);
96 if (xerror_occured)
97 current_wm_sn_owner = None;
98 }
99
100 {
101 /* Generate a timestamp */
102 XEvent event;
103
104 XSelectInput(ob_display, screen_support_win, PropertyChangeMask);
105
106 XChangeProperty(ob_display, screen_support_win,
107 prop_atoms.wm_class, prop_atoms.string,
108 8, PropModeAppend, NULL, 0);
109 XWindowEvent(ob_display, screen_support_win,
110 PropertyChangeMask, &event);
111
112 XSelectInput(ob_display, screen_support_win, NoEventMask);
113
114 timestamp = event.xproperty.time;
115 }
116
117 XSetSelectionOwner(ob_display, wm_sn_atom, screen_support_win,
118 timestamp);
119
120 if (XGetSelectionOwner(ob_display, wm_sn_atom) != screen_support_win) {
121 g_message(_("Could not acquire window manager selection on screen %d"),
122 ob_screen);
123 return FALSE;
124 }
125
126 /* Wait for old window manager to go away */
127 if (current_wm_sn_owner) {
128 XEvent event;
129 gulong wait = 0;
130 const gulong timeout = G_USEC_PER_SEC * 15; /* wait for 15s max */
131
132 while (wait < timeout) {
133 if (XCheckWindowEvent(ob_display, current_wm_sn_owner,
134 StructureNotifyMask, &event) &&
135 event.type == DestroyNotify)
136 break;
137 g_usleep(G_USEC_PER_SEC / 10);
138 wait += G_USEC_PER_SEC / 10;
139 }
140
141 if (wait >= timeout) {
142 g_message(_("The WM on screen %d is not exiting"), ob_screen);
143 return FALSE;
144 }
145 }
146
147 /* Send client message indicating that we are now the WM */
148 prop_message(RootWindow(ob_display, ob_screen), prop_atoms.manager,
149 timestamp, wm_sn_atom, screen_support_win, 0,
150 SubstructureNotifyMask);
151
152 return TRUE;
153 }
154
155 gboolean screen_annex()
156 {
157 XSetWindowAttributes attrib;
158 pid_t pid;
159 gint i, num_support;
160 Atom *prop_atoms_start, *wm_supported_pos;
161 gulong *supported;
162
163 /* create the netwm support window */
164 attrib.override_redirect = TRUE;
165 screen_support_win = XCreateWindow(ob_display,
166 RootWindow(ob_display, ob_screen),
167 -100, -100, 1, 1, 0,
168 CopyFromParent, InputOutput,
169 CopyFromParent,
170 CWOverrideRedirect, &attrib);
171 XMapWindow(ob_display, screen_support_win);
172
173 if (!replace_wm()) {
174 XDestroyWindow(ob_display, screen_support_win);
175 return FALSE;
176 }
177
178 xerror_set_ignore(TRUE);
179 xerror_occured = FALSE;
180 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
181 ROOT_EVENTMASK);
182 xerror_set_ignore(FALSE);
183 if (xerror_occured) {
184 g_message(_("A window manager is already running on screen %d"),
185 ob_screen);
186
187 XDestroyWindow(ob_display, screen_support_win);
188 return FALSE;
189 }
190
191
192 screen_set_root_cursor();
193
194 /* set the OPENBOX_PID hint */
195 pid = getpid();
196 PROP_SET32(RootWindow(ob_display, ob_screen),
197 openbox_pid, cardinal, pid);
198
199 /* set supporting window */
200 PROP_SET32(RootWindow(ob_display, ob_screen),
201 net_supporting_wm_check, window, screen_support_win);
202
203 /* set properties on the supporting window */
204 PROP_SETS(screen_support_win, net_wm_name, "Openbox");
205 PROP_SET32(screen_support_win, net_supporting_wm_check,
206 window, screen_support_win);
207
208 /* set the _NET_SUPPORTED_ATOMS hint */
209
210 /* this is all the atoms after net_supported in the prop_atoms struct */
211 prop_atoms_start = (Atom*)&prop_atoms;
212 wm_supported_pos = (Atom*)&(prop_atoms.net_supported);
213 num_support = sizeof(prop_atoms) / sizeof(Atom) -
214 (wm_supported_pos - prop_atoms_start) - 1;
215 i = 0;
216 supported = g_new(gulong, num_support);
217 supported[i++] = prop_atoms.net_supporting_wm_check;
218 supported[i++] = prop_atoms.net_wm_full_placement;
219 supported[i++] = prop_atoms.net_current_desktop;
220 supported[i++] = prop_atoms.net_number_of_desktops;
221 supported[i++] = prop_atoms.net_desktop_geometry;
222 supported[i++] = prop_atoms.net_desktop_viewport;
223 supported[i++] = prop_atoms.net_active_window;
224 supported[i++] = prop_atoms.net_workarea;
225 supported[i++] = prop_atoms.net_client_list;
226 supported[i++] = prop_atoms.net_client_list_stacking;
227 supported[i++] = prop_atoms.net_desktop_names;
228 supported[i++] = prop_atoms.net_close_window;
229 supported[i++] = prop_atoms.net_desktop_layout;
230 supported[i++] = prop_atoms.net_showing_desktop;
231 supported[i++] = prop_atoms.net_wm_name;
232 supported[i++] = prop_atoms.net_wm_visible_name;
233 supported[i++] = prop_atoms.net_wm_icon_name;
234 supported[i++] = prop_atoms.net_wm_visible_icon_name;
235 supported[i++] = prop_atoms.net_wm_desktop;
236 supported[i++] = prop_atoms.net_wm_strut;
237 supported[i++] = prop_atoms.net_wm_strut_partial;
238 supported[i++] = prop_atoms.net_wm_icon;
239 supported[i++] = prop_atoms.net_wm_icon_geometry;
240 supported[i++] = prop_atoms.net_wm_window_type;
241 supported[i++] = prop_atoms.net_wm_window_type_desktop;
242 supported[i++] = prop_atoms.net_wm_window_type_dock;
243 supported[i++] = prop_atoms.net_wm_window_type_toolbar;
244 supported[i++] = prop_atoms.net_wm_window_type_menu;
245 supported[i++] = prop_atoms.net_wm_window_type_utility;
246 supported[i++] = prop_atoms.net_wm_window_type_splash;
247 supported[i++] = prop_atoms.net_wm_window_type_dialog;
248 supported[i++] = prop_atoms.net_wm_window_type_normal;
249 supported[i++] = prop_atoms.net_wm_allowed_actions;
250 supported[i++] = prop_atoms.net_wm_action_move;
251 supported[i++] = prop_atoms.net_wm_action_resize;
252 supported[i++] = prop_atoms.net_wm_action_minimize;
253 supported[i++] = prop_atoms.net_wm_action_shade;
254 supported[i++] = prop_atoms.net_wm_action_maximize_horz;
255 supported[i++] = prop_atoms.net_wm_action_maximize_vert;
256 supported[i++] = prop_atoms.net_wm_action_fullscreen;
257 supported[i++] = prop_atoms.net_wm_action_change_desktop;
258 supported[i++] = prop_atoms.net_wm_action_close;
259 supported[i++] = prop_atoms.net_wm_state;
260 supported[i++] = prop_atoms.net_wm_state_modal;
261 supported[i++] = prop_atoms.net_wm_state_maximized_vert;
262 supported[i++] = prop_atoms.net_wm_state_maximized_horz;
263 supported[i++] = prop_atoms.net_wm_state_shaded;
264 supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
265 supported[i++] = prop_atoms.net_wm_state_skip_pager;
266 supported[i++] = prop_atoms.net_wm_state_hidden;
267 supported[i++] = prop_atoms.net_wm_state_fullscreen;
268 supported[i++] = prop_atoms.net_wm_state_above;
269 supported[i++] = prop_atoms.net_wm_state_below;
270 supported[i++] = prop_atoms.net_wm_state_demands_attention;
271 supported[i++] = prop_atoms.net_moveresize_window;
272 supported[i++] = prop_atoms.net_wm_moveresize;
273 supported[i++] = prop_atoms.net_wm_user_time;
274 supported[i++] = prop_atoms.net_frame_extents;
275 supported[i++] = prop_atoms.net_startup_id;
276 #ifdef SYNC
277 supported[i++] = prop_atoms.net_wm_sync_request;
278 supported[i++] = prop_atoms.net_wm_sync_request_counter;
279 #endif
280
281 supported[i++] = prop_atoms.kde_wm_change_state;
282 supported[i++] = prop_atoms.kde_net_wm_frame_strut;
283 supported[i++] = prop_atoms.kde_net_wm_window_type_override;
284
285 supported[i++] = prop_atoms.openbox_wm_state_undecorated;
286 supported[i++] = prop_atoms.openbox_pid;
287 supported[i++] = prop_atoms.openbox_config;
288 supported[i++] = prop_atoms.openbox_control;
289 g_assert(i == num_support);
290
291 PROP_SETA32(RootWindow(ob_display, ob_screen),
292 net_supported, atom, supported, num_support);
293 g_free(supported);
294
295 return TRUE;
296 }
297
298 void screen_startup(gboolean reconfig)
299 {
300 GSList *it;
301 guint i;
302
303 desktop_cycle_popup = pager_popup_new(FALSE);
304
305 if (!reconfig)
306 /* get the initial size */
307 screen_resize();
308
309 /* set the names */
310 screen_desktop_names = g_new(gchar*,
311 g_slist_length(config_desktops_names) + 1);
312 for (i = 0, it = config_desktops_names; it; ++i, it = g_slist_next(it))
313 screen_desktop_names[i] = it->data; /* dont strdup */
314 screen_desktop_names[i] = NULL;
315 PROP_SETSS(RootWindow(ob_display, ob_screen),
316 net_desktop_names, screen_desktop_names);
317 g_free(screen_desktop_names); /* dont free the individual strings */
318 screen_desktop_names = NULL;
319
320 if (!reconfig)
321 screen_num_desktops = 0;
322 screen_set_num_desktops(config_desktops_num);
323 if (!reconfig) {
324 guint32 d;
325 /* start on the current desktop when a wm was already running */
326 if (PROP_GET32(RootWindow(ob_display, ob_screen),
327 net_current_desktop, cardinal, &d) &&
328 d < screen_num_desktops)
329 {
330 screen_set_desktop(d);
331 } else
332 screen_set_desktop(MIN(config_screen_firstdesk,
333 screen_num_desktops) - 1);
334
335 /* don't start in showing-desktop mode */
336 screen_showing_desktop = FALSE;
337 PROP_SET32(RootWindow(ob_display, ob_screen),
338 net_showing_desktop, cardinal, screen_showing_desktop);
339
340 screen_update_layout();
341 }
342 }
343
344 void screen_shutdown(gboolean reconfig)
345 {
346 Rect **r;
347
348 pager_popup_free(desktop_cycle_popup);
349
350 if (!reconfig) {
351 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
352 NoEventMask);
353
354 /* we're not running here no more! */
355 PROP_ERASE(RootWindow(ob_display, ob_screen), openbox_pid);
356 /* not without us */
357 PROP_ERASE(RootWindow(ob_display, ob_screen), net_supported);
358 /* don't keep this mode */
359 PROP_ERASE(RootWindow(ob_display, ob_screen), net_showing_desktop);
360
361 XDestroyWindow(ob_display, screen_support_win);
362 }
363
364 g_strfreev(screen_desktop_names);
365 screen_desktop_names = NULL;
366 for (r = area; *r; ++r)
367 g_free(*r);
368 g_free(area);
369 area = NULL;
370 }
371
372 void screen_resize()
373 {
374 static gint oldw = 0, oldh = 0;
375 gint w, h;
376 GList *it;
377 gulong geometry[2];
378
379 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
380 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
381
382 if (w == oldw && h == oldh) return;
383
384 oldw = w; oldh = h;
385
386 /* Set the _NET_DESKTOP_GEOMETRY hint */
387 screen_physical_size.width = geometry[0] = w;
388 screen_physical_size.height = geometry[1] = h;
389 PROP_SETA32(RootWindow(ob_display, ob_screen),
390 net_desktop_geometry, cardinal, geometry, 2);
391
392 if (ob_state() == OB_STATE_STARTING)
393 return;
394
395 screen_update_areas();
396 dock_configure();
397
398 for (it = client_list; it; it = g_list_next(it))
399 client_move_onscreen(it->data, FALSE);
400 }
401
402 void screen_set_num_desktops(guint num)
403 {
404 guint old;
405 gulong *viewport;
406 GList *it;
407
408 g_assert(num > 0);
409
410 if (screen_num_desktops == num) return;
411
412 old = screen_num_desktops;
413 screen_num_desktops = num;
414 PROP_SET32(RootWindow(ob_display, ob_screen),
415 net_number_of_desktops, cardinal, num);
416
417 /* set the viewport hint */
418 viewport = g_new0(gulong, num * 2);
419 PROP_SETA32(RootWindow(ob_display, ob_screen),
420 net_desktop_viewport, cardinal, viewport, num * 2);
421 g_free(viewport);
422
423 /* the number of rows/columns will differ */
424 screen_update_layout();
425
426 /* may be some unnamed desktops that we need to fill in with names */
427 screen_update_desktop_names();
428
429 /* move windows on desktops that will no longer exist! */
430 for (it = client_list; it; it = g_list_next(it)) {
431 ObClient *c = it->data;
432 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
433 client_set_desktop(c, num - 1, FALSE);
434 }
435
436 /* change our struts/area to match (after moving windows) */
437 screen_update_areas();
438
439 /* change our desktop if we're on one that no longer exists! */
440 if (screen_desktop >= screen_num_desktops)
441 screen_set_desktop(num - 1);
442 }
443
444 void screen_set_desktop(guint num)
445 {
446 ObClient *c;
447 GList *it;
448 guint old;
449
450 g_assert(num < screen_num_desktops);
451
452 old = screen_desktop;
453 screen_desktop = num;
454 PROP_SET32(RootWindow(ob_display, ob_screen),
455 net_current_desktop, cardinal, num);
456
457 if (old == num) return;
458
459 screen_last_desktop = old;
460
461 ob_debug("Moving to desktop %d\n", num+1);
462
463 if (moveresize_client)
464 client_set_desktop(moveresize_client, num, TRUE);
465
466 /* show windows before hiding the rest to lessen the enter/leave events */
467
468 /* show/hide windows from top to bottom */
469 for (it = stacking_list; it; it = g_list_next(it)) {
470 if (WINDOW_IS_CLIENT(it->data)) {
471 ObClient *c = it->data;
472 client_show(c);
473 }
474 }
475
476 /* hide windows from bottom to top */
477 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
478 if (WINDOW_IS_CLIENT(it->data)) {
479 ObClient *c = it->data;
480 client_hide(c);
481 }
482 }
483
484 /* have to try focus here because when you leave an empty desktop
485 there is no focus out to watch for */
486 if ((c = focus_fallback_target(TRUE, focus_client))) {
487 /* reduce flicker by hiliting now rather than waiting for the server
488 FocusIn event */
489 frame_adjust_focus(c->frame, TRUE);
490 client_focus(c);
491 }
492
493 event_ignore_queued_enters();
494
495 if (event_curtime != CurrentTime)
496 screen_desktop_user_time = event_curtime;
497 }
498
499 static void get_row_col(guint d, guint *r, guint *c)
500 {
501 switch (screen_desktop_layout.orientation) {
502 case OB_ORIENTATION_HORZ:
503 switch (screen_desktop_layout.start_corner) {
504 case OB_CORNER_TOPLEFT:
505 *r = d / screen_desktop_layout.columns;
506 *c = d % screen_desktop_layout.columns;
507 break;
508 case OB_CORNER_BOTTOMLEFT:
509 *r = screen_desktop_layout.rows - 1 -
510 d / screen_desktop_layout.columns;
511 *c = d % screen_desktop_layout.columns;
512 break;
513 case OB_CORNER_TOPRIGHT:
514 *r = d / screen_desktop_layout.columns;
515 *c = screen_desktop_layout.columns - 1 -
516 d % screen_desktop_layout.columns;
517 break;
518 case OB_CORNER_BOTTOMRIGHT:
519 *r = screen_desktop_layout.rows - 1 -
520 d / screen_desktop_layout.columns;
521 *c = screen_desktop_layout.columns - 1 -
522 d % screen_desktop_layout.columns;
523 break;
524 }
525 break;
526 case OB_ORIENTATION_VERT:
527 switch (screen_desktop_layout.start_corner) {
528 case OB_CORNER_TOPLEFT:
529 *r = d % screen_desktop_layout.rows;
530 *c = d / screen_desktop_layout.rows;
531 break;
532 case OB_CORNER_BOTTOMLEFT:
533 *r = screen_desktop_layout.rows - 1 -
534 d % screen_desktop_layout.rows;
535 *c = d / screen_desktop_layout.rows;
536 break;
537 case OB_CORNER_TOPRIGHT:
538 *r = d % screen_desktop_layout.rows;
539 *c = screen_desktop_layout.columns - 1 -
540 d / screen_desktop_layout.rows;
541 break;
542 case OB_CORNER_BOTTOMRIGHT:
543 *r = screen_desktop_layout.rows - 1 -
544 d % screen_desktop_layout.rows;
545 *c = screen_desktop_layout.columns - 1 -
546 d / screen_desktop_layout.rows;
547 break;
548 }
549 break;
550 }
551 }
552
553 static guint translate_row_col(guint r, guint c)
554 {
555 switch (screen_desktop_layout.orientation) {
556 case OB_ORIENTATION_HORZ:
557 switch (screen_desktop_layout.start_corner) {
558 case OB_CORNER_TOPLEFT:
559 return r % screen_desktop_layout.rows *
560 screen_desktop_layout.columns +
561 c % screen_desktop_layout.columns;
562 case OB_CORNER_BOTTOMLEFT:
563 return (screen_desktop_layout.rows - 1 -
564 r % screen_desktop_layout.rows) *
565 screen_desktop_layout.columns +
566 c % screen_desktop_layout.columns;
567 case OB_CORNER_TOPRIGHT:
568 return r % screen_desktop_layout.rows *
569 screen_desktop_layout.columns +
570 (screen_desktop_layout.columns - 1 -
571 c % screen_desktop_layout.columns);
572 case OB_CORNER_BOTTOMRIGHT:
573 return (screen_desktop_layout.rows - 1 -
574 r % screen_desktop_layout.rows) *
575 screen_desktop_layout.columns +
576 (screen_desktop_layout.columns - 1 -
577 c % screen_desktop_layout.columns);
578 }
579 case OB_ORIENTATION_VERT:
580 switch (screen_desktop_layout.start_corner) {
581 case OB_CORNER_TOPLEFT:
582 return c % screen_desktop_layout.columns *
583 screen_desktop_layout.rows +
584 r % screen_desktop_layout.rows;
585 case OB_CORNER_BOTTOMLEFT:
586 return c % screen_desktop_layout.columns *
587 screen_desktop_layout.rows +
588 (screen_desktop_layout.rows - 1 -
589 r % screen_desktop_layout.rows);
590 case OB_CORNER_TOPRIGHT:
591 return (screen_desktop_layout.columns - 1 -
592 c % screen_desktop_layout.columns) *
593 screen_desktop_layout.rows +
594 r % screen_desktop_layout.rows;
595 case OB_CORNER_BOTTOMRIGHT:
596 return (screen_desktop_layout.columns - 1 -
597 c % screen_desktop_layout.columns) *
598 screen_desktop_layout.rows +
599 (screen_desktop_layout.rows - 1 -
600 r % screen_desktop_layout.rows);
601 }
602 }
603 g_assert_not_reached();
604 return 0;
605 }
606
607 void screen_desktop_popup(guint d, gboolean show)
608 {
609 Rect *a;
610
611 if (!show) {
612 pager_popup_hide(desktop_cycle_popup);
613 } else {
614 a = screen_physical_area_monitor(0);
615 pager_popup_position(desktop_cycle_popup, CenterGravity,
616 a->x + a->width / 2, a->y + a->height / 2);
617 pager_popup_width(desktop_cycle_popup, MAX(a->width/3, POPUP_WIDTH));
618 pager_popup_height(desktop_cycle_popup, POPUP_HEIGHT);
619
620 pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
621 }
622 }
623
624 guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
625 gboolean dialog, gboolean done, gboolean cancel)
626 {
627 static gboolean first = TRUE;
628 static guint origd, d;
629 guint r, c;
630
631 if (cancel) {
632 d = origd;
633 goto done_cycle;
634 } else if (done && dialog) {
635 goto done_cycle;
636 }
637 if (first) {
638 first = FALSE;
639 d = origd = screen_desktop;
640 }
641
642 get_row_col(d, &r, &c);
643
644 if (linear) {
645 switch (dir) {
646 case OB_DIRECTION_EAST:
647 if (d < screen_num_desktops - 1)
648 ++d;
649 else if (wrap)
650 d = 0;
651 break;
652 case OB_DIRECTION_WEST:
653 if (d > 0)
654 --d;
655 else if (wrap)
656 d = screen_num_desktops - 1;
657 break;
658 default:
659 assert(0);
660 return screen_desktop;
661 }
662 } else {
663 switch (dir) {
664 case OB_DIRECTION_EAST:
665 ++c;
666 if (c >= screen_desktop_layout.columns) {
667 if (wrap) {
668 c = 0;
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_WEST:
685 --c;
686 if (c >= screen_desktop_layout.columns) {
687 if (wrap) {
688 c = screen_desktop_layout.columns - 1;
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 --c;
698 } else {
699 d = screen_desktop;
700 goto show_cycle_dialog;
701 }
702 }
703 break;
704 case OB_DIRECTION_SOUTH:
705 ++r;
706 if (r >= screen_desktop_layout.rows) {
707 if (wrap) {
708 r = 0;
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 case OB_DIRECTION_NORTH:
725 --r;
726 if (r >= screen_desktop_layout.rows) {
727 if (wrap) {
728 r = screen_desktop_layout.rows - 1;
729 } else {
730 d = screen_desktop;
731 goto show_cycle_dialog;
732 }
733 }
734 d = translate_row_col(r, c);
735 if (d >= screen_num_desktops) {
736 if (wrap) {
737 --r;
738 } else {
739 d = screen_desktop;
740 goto show_cycle_dialog;
741 }
742 }
743 break;
744 default:
745 assert(0);
746 return d = screen_desktop;
747 }
748
749 d = translate_row_col(r, c);
750 }
751
752 show_cycle_dialog:
753 if (dialog) {
754 screen_desktop_popup(d, TRUE);
755 return d;
756 }
757
758 done_cycle:
759 first = TRUE;
760
761 screen_desktop_popup(0, FALSE);
762
763 return d;
764 }
765
766 void screen_update_layout()
767 {
768 ObOrientation orient;
769 ObCorner corner;
770 guint rows;
771 guint cols;
772 guint32 *data;
773 guint num;
774 gboolean valid = FALSE;
775
776 if (PROP_GETA32(RootWindow(ob_display, ob_screen),
777 net_desktop_layout, cardinal, &data, &num)) {
778 if (num == 3 || num == 4) {
779
780 if (data[0] == prop_atoms.net_wm_orientation_vert)
781 orient = OB_ORIENTATION_VERT;
782 else if (data[0] == prop_atoms.net_wm_orientation_horz)
783 orient = OB_ORIENTATION_HORZ;
784 else
785 goto screen_update_layout_bail;
786
787 if (num < 4)
788 corner = OB_CORNER_TOPLEFT;
789 else {
790 if (data[3] == prop_atoms.net_wm_topleft)
791 corner = OB_CORNER_TOPLEFT;
792 else if (data[3] == prop_atoms.net_wm_topright)
793 corner = OB_CORNER_TOPRIGHT;
794 else if (data[3] == prop_atoms.net_wm_bottomright)
795 corner = OB_CORNER_BOTTOMRIGHT;
796 else if (data[3] == prop_atoms.net_wm_bottomleft)
797 corner = OB_CORNER_BOTTOMLEFT;
798 else
799 goto screen_update_layout_bail;
800 }
801
802 cols = data[1];
803 rows = data[2];
804
805 /* fill in a zero rows/columns */
806 if ((cols == 0 && rows == 0)) { /* both 0's is bad data.. */
807 goto screen_update_layout_bail;
808 } else {
809 if (cols == 0) {
810 cols = screen_num_desktops / rows;
811 if (rows * cols < screen_num_desktops)
812 cols++;
813 if (rows * cols >= screen_num_desktops + cols)
814 rows--;
815 } else if (rows == 0) {
816 rows = screen_num_desktops / cols;
817 if (cols * rows < screen_num_desktops)
818 rows++;
819 if (cols * rows >= screen_num_desktops + rows)
820 cols--;
821 }
822 }
823
824 /* bounds checking */
825 if (orient == OB_ORIENTATION_HORZ) {
826 cols = MIN(screen_num_desktops, cols);
827 rows = MIN(rows, (screen_num_desktops + cols - 1) / cols);
828 cols = screen_num_desktops / rows +
829 !!(screen_num_desktops % rows);
830 } else {
831 rows = MIN(screen_num_desktops, rows);
832 cols = MIN(cols, (screen_num_desktops + rows - 1) / rows);
833 rows = screen_num_desktops / cols +
834 !!(screen_num_desktops % cols);
835 }
836
837 valid = TRUE;
838 }
839 screen_update_layout_bail:
840 g_free(data);
841 }
842
843 if (!valid) {
844 /* defaults */
845 orient = OB_ORIENTATION_HORZ;
846 corner = OB_CORNER_TOPLEFT;
847 rows = 1;
848 cols = screen_num_desktops;
849 }
850
851 screen_desktop_layout.orientation = orient;
852 screen_desktop_layout.start_corner = corner;
853 screen_desktop_layout.rows = rows;
854 screen_desktop_layout.columns = cols;
855 }
856
857 void screen_update_desktop_names()
858 {
859 guint i;
860
861 /* empty the array */
862 g_strfreev(screen_desktop_names);
863 screen_desktop_names = NULL;
864
865 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
866 net_desktop_names, utf8, &screen_desktop_names))
867 for (i = 0; screen_desktop_names[i] && i <= screen_num_desktops; ++i);
868 else
869 i = 0;
870 if (i <= screen_num_desktops) {
871 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
872 screen_num_desktops + 1);
873 screen_desktop_names[screen_num_desktops] = NULL;
874 for (; i < screen_num_desktops; ++i)
875 screen_desktop_names[i] = g_strdup_printf("Desktop %i", i + 1);
876 }
877 }
878
879 void screen_show_desktop(gboolean show, gboolean restore_focus)
880 {
881 GList *it;
882
883 if (show == screen_showing_desktop) return; /* no change */
884
885 screen_showing_desktop = show;
886
887 if (show) {
888 /* bottom to top */
889 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
890 if (WINDOW_IS_CLIENT(it->data)) {
891 ObClient *client = it->data;
892 client_showhide(client);
893 }
894 }
895 } else {
896 /* top to bottom */
897 for (it = stacking_list; it; it = g_list_next(it)) {
898 if (WINDOW_IS_CLIENT(it->data)) {
899 ObClient *client = it->data;
900 client_showhide(client);
901 }
902 }
903 }
904
905 if (show) {
906 /* focus desktop */
907 for (it = focus_order; it; it = g_list_next(it)) {
908 ObClient *c = it->data;
909 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
910 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
911 client_focus(it->data))
912 break;
913 }
914 } else if (restore_focus) {
915 ObClient *c;
916
917 /* use NULL for the "old" argument because the desktop was focused
918 and we don't want to fallback to the desktop by default */
919 if ((c = focus_fallback_target(TRUE, NULL)))
920 client_focus(c);
921 }
922
923 show = !!show; /* make it boolean */
924 PROP_SET32(RootWindow(ob_display, ob_screen),
925 net_showing_desktop, cardinal, show);
926 }
927
928 void screen_install_colormap(ObClient *client, gboolean install)
929 {
930 if (client == NULL) {
931 if (install)
932 XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
933 else
934 XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
935 } else {
936 xerror_set_ignore(TRUE);
937 if (install) {
938 if (client->colormap != None)
939 XInstallColormap(RrDisplay(ob_rr_inst), client->colormap);
940 } else
941 XUninstallColormap(RrDisplay(ob_rr_inst), client->colormap);
942 xerror_set_ignore(FALSE);
943 }
944 }
945
946 static inline void
947 screen_area_add_strut_left(const StrutPartial *s, const Rect *monitor_area,
948 gint edge, Strut *ret)
949 {
950 if (s->left &&
951 ((s->left_end <= s->left_start) ||
952 (RECT_TOP(*monitor_area) < s->left_end &&
953 RECT_BOTTOM(*monitor_area) > s->left_start)))
954 ret->left = MAX(ret->left, edge);
955 }
956
957 static inline void
958 screen_area_add_strut_top(const StrutPartial *s, const Rect *monitor_area,
959 gint edge, Strut *ret)
960 {
961 if (s->top &&
962 ((s->top_end <= s->top_start) ||
963 (RECT_LEFT(*monitor_area) < s->top_end &&
964 RECT_RIGHT(*monitor_area) > s->top_start)))
965 ret->top = MAX(ret->top, edge);
966 }
967
968 static inline void
969 screen_area_add_strut_right(const StrutPartial *s, const Rect *monitor_area,
970 gint edge, Strut *ret)
971 {
972 if (s->right &&
973 ((s->right_end <= s->right_start) ||
974 (RECT_TOP(*monitor_area) < s->right_end &&
975 RECT_BOTTOM(*monitor_area) > s->right_start)))
976 ret->right = MAX(ret->right, edge);
977 }
978
979 static inline void
980 screen_area_add_strut_bottom(const StrutPartial *s, const Rect *monitor_area,
981 gint edge, Strut *ret)
982 {
983 if (s->bottom &&
984 ((s->bottom_end <= s->bottom_start) ||
985 (RECT_LEFT(*monitor_area) < s->bottom_end &&
986 RECT_RIGHT(*monitor_area) > s->bottom_start)))
987 ret->bottom = MAX(ret->bottom, edge);
988 }
989
990 void screen_update_areas()
991 {
992 guint i, x;
993 gulong *dims;
994 GList *it;
995 gint o;
996
997 g_free(monitor_area);
998 extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
999
1000 if (area) {
1001 for (i = 0; area[i]; ++i)
1002 g_free(area[i]);
1003 g_free(area);
1004 }
1005
1006 area = g_new(Rect*, screen_num_desktops + 2);
1007 for (i = 0; i < screen_num_desktops + 1; ++i)
1008 area[i] = g_new0(Rect, screen_num_monitors + 1);
1009 area[i] = NULL;
1010
1011 dims = g_new(gulong, 4 * screen_num_desktops);
1012
1013 for (i = 0; i < screen_num_desktops + 1; ++i) {
1014 Strut *struts;
1015 gint l, r, t, b;
1016
1017 struts = g_new0(Strut, screen_num_monitors);
1018
1019 /* calc the xinerama areas */
1020 for (x = 0; x < screen_num_monitors; ++x) {
1021 area[i][x] = monitor_area[x];
1022 if (x == 0) {
1023 l = monitor_area[x].x;
1024 t = monitor_area[x].y;
1025 r = monitor_area[x].x + monitor_area[x].width - 1;
1026 b = monitor_area[x].y + monitor_area[x].height - 1;
1027 } else {
1028 l = MIN(l, monitor_area[x].x);
1029 t = MIN(t, monitor_area[x].y);
1030 r = MAX(r, monitor_area[x].x + monitor_area[x].width - 1);
1031 b = MAX(b, monitor_area[x].y + monitor_area[x].height - 1);
1032 }
1033 }
1034 RECT_SET(area[i][x], l, t, r - l + 1, b - t + 1);
1035
1036 /* apply the struts */
1037
1038 /* find the left-most xin heads, i do this in 2 loops :| */
1039 o = area[i][0].x;
1040 for (x = 1; x < screen_num_monitors; ++x)
1041 o = MIN(o, area[i][x].x);
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_left(&c->strut,
1047 &monitor_area[x],
1048 o + c->strut.left - area[i][x].x,
1049 &struts[x]);
1050 }
1051 screen_area_add_strut_left(&dock_strut,
1052 &monitor_area[x],
1053 o + dock_strut.left - area[i][x].x,
1054 &struts[x]);
1055
1056 area[i][x].x += struts[x].left;
1057 area[i][x].width -= struts[x].left;
1058 }
1059
1060 /* find the top-most xin heads, i do this in 2 loops :| */
1061 o = area[i][0].y;
1062 for (x = 1; x < screen_num_monitors; ++x)
1063 o = MIN(o, area[i][x].y);
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_top(&c->strut,
1069 &monitor_area[x],
1070 o + c->strut.top - area[i][x].y,
1071 &struts[x]);
1072 }
1073 screen_area_add_strut_top(&dock_strut,
1074 &monitor_area[x],
1075 o + dock_strut.top - area[i][x].y,
1076 &struts[x]);
1077
1078 area[i][x].y += struts[x].top;
1079 area[i][x].height -= struts[x].top;
1080 }
1081
1082 /* find the right-most xin heads, i do this in 2 loops :| */
1083 o = area[i][0].x + area[i][0].width - 1;
1084 for (x = 1; x < screen_num_monitors; ++x)
1085 o = MAX(o, area[i][x].x + area[i][x].width - 1);
1086
1087 for (x = 0; x < screen_num_monitors; ++x) {
1088 for (it = client_list; it; it = g_list_next(it)) {
1089 ObClient *c = it->data;
1090 screen_area_add_strut_right(&c->strut,
1091 &monitor_area[x],
1092 (area[i][x].x +
1093 area[i][x].width - 1) -
1094 (o - c->strut.right),
1095 &struts[x]);
1096 }
1097 screen_area_add_strut_right(&dock_strut,
1098 &monitor_area[x],
1099 (area[i][x].x +
1100 area[i][x].width - 1) -
1101 (o - dock_strut.right),
1102 &struts[x]);
1103
1104 area[i][x].width -= struts[x].right;
1105 }
1106
1107 /* find the bottom-most xin heads, i do this in 2 loops :| */
1108 o = area[i][0].y + area[i][0].height - 1;
1109 for (x = 1; x < screen_num_monitors; ++x)
1110 o = MAX(o, area[i][x].y + area[i][x].height - 1);
1111
1112 for (x = 0; x < screen_num_monitors; ++x) {
1113 for (it = client_list; it; it = g_list_next(it)) {
1114 ObClient *c = it->data;
1115 screen_area_add_strut_bottom(&c->strut,
1116 &monitor_area[x],
1117 (area[i][x].y +
1118 area[i][x].height - 1) - \
1119 (o - c->strut.bottom),
1120 &struts[x]);
1121 }
1122 screen_area_add_strut_bottom(&dock_strut,
1123 &monitor_area[x],
1124 (area[i][x].y +
1125 area[i][x].height - 1) - \
1126 (o - dock_strut.bottom),
1127 &struts[x]);
1128
1129 area[i][x].height -= struts[x].bottom;
1130 }
1131
1132 l = RECT_LEFT(area[i][0]);
1133 t = RECT_TOP(area[i][0]);
1134 r = RECT_RIGHT(area[i][0]);
1135 b = RECT_BOTTOM(area[i][0]);
1136 for (x = 1; x < screen_num_monitors; ++x) {
1137 l = MIN(l, RECT_LEFT(area[i][x]));
1138 t = MIN(l, RECT_TOP(area[i][x]));
1139 r = MAX(r, RECT_RIGHT(area[i][x]));
1140 b = MAX(b, RECT_BOTTOM(area[i][x]));
1141 }
1142 RECT_SET(area[i][screen_num_monitors], l, t,
1143 r - l + 1, b - t + 1);
1144
1145 /* XXX optimize when this is run? */
1146
1147 /* the area has changed, adjust all the maximized
1148 windows */
1149 for (it = client_list; it; it = g_list_next(it)) {
1150 ObClient *c = it->data;
1151 if (i < screen_num_desktops) {
1152 if (c->desktop == i)
1153 client_reconfigure(c);
1154 } else if (c->desktop == DESKTOP_ALL)
1155 client_reconfigure(c);
1156 }
1157 if (i < screen_num_desktops) {
1158 /* don't set these for the 'all desktops' area */
1159 dims[(i * 4) + 0] = area[i][screen_num_monitors].x;
1160 dims[(i * 4) + 1] = area[i][screen_num_monitors].y;
1161 dims[(i * 4) + 2] = area[i][screen_num_monitors].width;
1162 dims[(i * 4) + 3] = area[i][screen_num_monitors].height;
1163 }
1164
1165 g_free(struts);
1166 }
1167
1168 PROP_SETA32(RootWindow(ob_display, ob_screen), net_workarea, cardinal,
1169 dims, 4 * screen_num_desktops);
1170
1171 g_free(dims);
1172 }
1173
1174 Rect *screen_area(guint desktop)
1175 {
1176 return screen_area_monitor(desktop, screen_num_monitors);
1177 }
1178
1179 Rect *screen_area_monitor(guint desktop, guint head)
1180 {
1181 if (head > screen_num_monitors)
1182 return NULL;
1183 if (desktop >= screen_num_desktops) {
1184 if (desktop == DESKTOP_ALL)
1185 return &area[screen_num_desktops][head];
1186 return NULL;
1187 }
1188 return &area[desktop][head];
1189 }
1190
1191 guint screen_find_monitor(Rect *search)
1192 {
1193 guint i;
1194 guint most = 0;
1195 guint mostv = 0;
1196
1197 for (i = 0; i < screen_num_monitors; ++i) {
1198 Rect *area = screen_physical_area_monitor(i);
1199 if (RECT_INTERSECTS_RECT(*area, *search)) {
1200 Rect r;
1201 guint v;
1202
1203 RECT_SET_INTERSECTION(r, *area, *search);
1204 v = r.width * r.height;
1205
1206 if (v > mostv) {
1207 mostv = v;
1208 most = i;
1209 }
1210 }
1211 }
1212 return most;
1213 }
1214
1215 Rect *screen_physical_area()
1216 {
1217 return screen_physical_area_monitor(screen_num_monitors);
1218 }
1219
1220 Rect *screen_physical_area_monitor(guint head)
1221 {
1222 if (head > screen_num_monitors)
1223 return NULL;
1224 return &monitor_area[head];
1225 }
1226
1227 void screen_set_root_cursor()
1228 {
1229 if (sn_app_starting())
1230 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1231 ob_cursor(OB_CURSOR_BUSY));
1232 else
1233 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1234 ob_cursor(OB_CURSOR_POINTER));
1235 }
1236
1237 gboolean screen_pointer_pos(gint *x, gint *y)
1238 {
1239 Window w;
1240 gint i;
1241 guint u;
1242
1243 return !!XQueryPointer(ob_display, RootWindow(ob_display, ob_screen),
1244 &w, &w, x, y, &i, &i, &u);
1245 }
my patches for the openbox window manager
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