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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 "session.h"
32 #include "frame.h"
33 #include "event.h"
34 #include "focus.h"
35 #include "popup.h"
36 #include "extensions.h"
37 #include "render/render.h"
38 #include "gettext.h"
39
40 #include <X11/Xlib.h>
41 #ifdef HAVE_UNISTD_H
42 # include <sys/types.h>
43 # include <unistd.h>
44 #endif
45 #include <assert.h>
46
47 /*! The event mask to grab on the root window */
48 #define ROOT_EVENTMASK (StructureNotifyMask | PropertyChangeMask | \
49 EnterWindowMask | LeaveWindowMask | \
50 SubstructureRedirectMask | FocusChangeMask | \
51 ButtonPressMask | ButtonReleaseMask | ButtonMotionMask)
52
53 guint screen_num_desktops;
54 guint screen_num_monitors;
55 guint screen_desktop;
56 guint screen_last_desktop;
57 Size screen_physical_size;
58 gboolean screen_showing_desktop;
59 DesktopLayout screen_desktop_layout;
60 gchar **screen_desktop_names;
61 Window screen_support_win;
62 Time screen_desktop_user_time = CurrentTime;
63
64 static Rect **area; /* array of desktop holding array of xinerama areas */
65 static Rect *monitor_area;
66
67 static ObPagerPopup *desktop_cycle_popup;
68
69 static gboolean replace_wm()
70 {
71 gchar *wm_sn;
72 Atom wm_sn_atom;
73 Window current_wm_sn_owner;
74 Time timestamp;
75
76 wm_sn = g_strdup_printf("WM_S%d", ob_screen);
77 wm_sn_atom = XInternAtom(ob_display, wm_sn, FALSE);
78 g_free(wm_sn);
79
80 current_wm_sn_owner = XGetSelectionOwner(ob_display, wm_sn_atom);
81 if (current_wm_sn_owner == screen_support_win)
82 current_wm_sn_owner = None;
83 if (current_wm_sn_owner) {
84 if (!ob_replace_wm) {
85 g_message(_("A window manager is already running on screen %d"),
86 ob_screen);
87 return FALSE;
88 }
89 xerror_set_ignore(TRUE);
90 xerror_occured = FALSE;
91
92 /* We want to find out when the current selection owner dies */
93 XSelectInput(ob_display, current_wm_sn_owner, StructureNotifyMask);
94 XSync(ob_display, FALSE);
95
96 xerror_set_ignore(FALSE);
97 if (xerror_occured)
98 current_wm_sn_owner = None;
99 }
100
101 {
102 /* Generate a timestamp */
103 XEvent event;
104
105 XSelectInput(ob_display, screen_support_win, PropertyChangeMask);
106
107 XChangeProperty(ob_display, screen_support_win,
108 prop_atoms.wm_class, prop_atoms.string,
109 8, PropModeAppend, NULL, 0);
110 XWindowEvent(ob_display, screen_support_win,
111 PropertyChangeMask, &event);
112
113 XSelectInput(ob_display, screen_support_win, NoEventMask);
114
115 timestamp = event.xproperty.time;
116 }
117
118 XSetSelectionOwner(ob_display, wm_sn_atom, screen_support_win,
119 timestamp);
120
121 if (XGetSelectionOwner(ob_display, wm_sn_atom) != screen_support_win) {
122 g_message(_("Could not acquire window manager selection on screen %d"),
123 ob_screen);
124 return FALSE;
125 }
126
127 /* Wait for old window manager to go away */
128 if (current_wm_sn_owner) {
129 XEvent event;
130 gulong wait = 0;
131 const gulong timeout = G_USEC_PER_SEC * 15; /* wait for 15s max */
132
133 while (wait < timeout) {
134 if (XCheckWindowEvent(ob_display, current_wm_sn_owner,
135 StructureNotifyMask, &event) &&
136 event.type == DestroyNotify)
137 break;
138 g_usleep(G_USEC_PER_SEC / 10);
139 wait += G_USEC_PER_SEC / 10;
140 }
141
142 if (wait >= timeout) {
143 g_message(_("The WM on screen %d is not exiting"), ob_screen);
144 return FALSE;
145 }
146 }
147
148 /* Send client message indicating that we are now the WM */
149 prop_message(RootWindow(ob_display, ob_screen), prop_atoms.manager,
150 timestamp, wm_sn_atom, screen_support_win, 0,
151 SubstructureNotifyMask);
152
153 return TRUE;
154 }
155
156 gboolean screen_annex()
157 {
158 XSetWindowAttributes attrib;
159 pid_t pid;
160 gint i, num_support;
161 Atom *prop_atoms_start, *wm_supported_pos;
162 gulong *supported;
163
164 /* create the netwm support window */
165 attrib.override_redirect = TRUE;
166 screen_support_win = XCreateWindow(ob_display,
167 RootWindow(ob_display, ob_screen),
168 -100, -100, 1, 1, 0,
169 CopyFromParent, InputOutput,
170 CopyFromParent,
171 CWOverrideRedirect, &attrib);
172 XMapWindow(ob_display, screen_support_win);
173
174 if (!replace_wm()) {
175 XDestroyWindow(ob_display, screen_support_win);
176 return FALSE;
177 }
178
179 xerror_set_ignore(TRUE);
180 xerror_occured = FALSE;
181 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
182 ROOT_EVENTMASK);
183 xerror_set_ignore(FALSE);
184 if (xerror_occured) {
185 g_message(_("A window manager is already running on screen %d"),
186 ob_screen);
187
188 XDestroyWindow(ob_display, screen_support_win);
189 return FALSE;
190 }
191
192
193 screen_set_root_cursor();
194
195 /* set the OPENBOX_PID hint */
196 pid = getpid();
197 PROP_SET32(RootWindow(ob_display, ob_screen),
198 openbox_pid, cardinal, pid);
199
200 /* set supporting window */
201 PROP_SET32(RootWindow(ob_display, ob_screen),
202 net_supporting_wm_check, window, screen_support_win);
203
204 /* set properties on the supporting window */
205 PROP_SETS(screen_support_win, net_wm_name, "Openbox");
206 PROP_SET32(screen_support_win, net_supporting_wm_check,
207 window, screen_support_win);
208
209 /* set the _NET_SUPPORTED_ATOMS hint */
210
211 /* this is all the atoms after net_supported in the prop_atoms struct */
212 prop_atoms_start = (Atom*)&prop_atoms;
213 wm_supported_pos = (Atom*)&(prop_atoms.net_supported);
214 num_support = sizeof(prop_atoms) / sizeof(Atom) -
215 (wm_supported_pos - prop_atoms_start) - 1;
216 i = 0;
217 supported = g_new(gulong, num_support);
218 supported[i++] = prop_atoms.net_supporting_wm_check;
219 supported[i++] = prop_atoms.net_wm_full_placement;
220 supported[i++] = prop_atoms.net_current_desktop;
221 supported[i++] = prop_atoms.net_number_of_desktops;
222 supported[i++] = prop_atoms.net_desktop_geometry;
223 supported[i++] = prop_atoms.net_desktop_viewport;
224 supported[i++] = prop_atoms.net_active_window;
225 supported[i++] = prop_atoms.net_workarea;
226 supported[i++] = prop_atoms.net_client_list;
227 supported[i++] = prop_atoms.net_client_list_stacking;
228 supported[i++] = prop_atoms.net_desktop_names;
229 supported[i++] = prop_atoms.net_close_window;
230 supported[i++] = prop_atoms.net_desktop_layout;
231 supported[i++] = prop_atoms.net_showing_desktop;
232 supported[i++] = prop_atoms.net_wm_name;
233 supported[i++] = prop_atoms.net_wm_visible_name;
234 supported[i++] = prop_atoms.net_wm_icon_name;
235 supported[i++] = prop_atoms.net_wm_visible_icon_name;
236 supported[i++] = prop_atoms.net_wm_desktop;
237 supported[i++] = prop_atoms.net_wm_strut;
238 supported[i++] = prop_atoms.net_wm_strut_partial;
239 supported[i++] = prop_atoms.net_wm_icon;
240 supported[i++] = prop_atoms.net_wm_icon_geometry;
241 supported[i++] = prop_atoms.net_wm_window_type;
242 supported[i++] = prop_atoms.net_wm_window_type_desktop;
243 supported[i++] = prop_atoms.net_wm_window_type_dock;
244 supported[i++] = prop_atoms.net_wm_window_type_toolbar;
245 supported[i++] = prop_atoms.net_wm_window_type_menu;
246 supported[i++] = prop_atoms.net_wm_window_type_utility;
247 supported[i++] = prop_atoms.net_wm_window_type_splash;
248 supported[i++] = prop_atoms.net_wm_window_type_dialog;
249 supported[i++] = prop_atoms.net_wm_window_type_normal;
250 supported[i++] = prop_atoms.net_wm_allowed_actions;
251 supported[i++] = prop_atoms.net_wm_action_move;
252 supported[i++] = prop_atoms.net_wm_action_resize;
253 supported[i++] = prop_atoms.net_wm_action_minimize;
254 supported[i++] = prop_atoms.net_wm_action_shade;
255 supported[i++] = prop_atoms.net_wm_action_maximize_horz;
256 supported[i++] = prop_atoms.net_wm_action_maximize_vert;
257 supported[i++] = prop_atoms.net_wm_action_fullscreen;
258 supported[i++] = prop_atoms.net_wm_action_change_desktop;
259 supported[i++] = prop_atoms.net_wm_action_close;
260 supported[i++] = prop_atoms.net_wm_state;
261 supported[i++] = prop_atoms.net_wm_state_modal;
262 supported[i++] = prop_atoms.net_wm_state_maximized_vert;
263 supported[i++] = prop_atoms.net_wm_state_maximized_horz;
264 supported[i++] = prop_atoms.net_wm_state_shaded;
265 supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
266 supported[i++] = prop_atoms.net_wm_state_skip_pager;
267 supported[i++] = prop_atoms.net_wm_state_hidden;
268 supported[i++] = prop_atoms.net_wm_state_fullscreen;
269 supported[i++] = prop_atoms.net_wm_state_above;
270 supported[i++] = prop_atoms.net_wm_state_below;
271 supported[i++] = prop_atoms.net_wm_state_demands_attention;
272 supported[i++] = prop_atoms.net_moveresize_window;
273 supported[i++] = prop_atoms.net_wm_moveresize;
274 supported[i++] = prop_atoms.net_wm_user_time;
275 supported[i++] = prop_atoms.net_frame_extents;
276 supported[i++] = prop_atoms.net_startup_id;
277 #ifdef SYNC
278 supported[i++] = prop_atoms.net_wm_sync_request;
279 supported[i++] = prop_atoms.net_wm_sync_request_counter;
280 #endif
281
282 supported[i++] = prop_atoms.kde_wm_change_state;
283 supported[i++] = prop_atoms.kde_net_wm_frame_strut;
284 supported[i++] = prop_atoms.kde_net_wm_window_type_override;
285
286 supported[i++] = prop_atoms.openbox_wm_state_undecorated;
287 supported[i++] = prop_atoms.openbox_pid;
288 supported[i++] = prop_atoms.openbox_config;
289 supported[i++] = prop_atoms.openbox_control;
290 g_assert(i == num_support);
291
292 PROP_SETA32(RootWindow(ob_display, ob_screen),
293 net_supported, atom, supported, num_support);
294 g_free(supported);
295
296 return TRUE;
297 }
298
299 void screen_startup(gboolean reconfig)
300 {
301 GSList *it;
302 guint i;
303
304 desktop_cycle_popup = pager_popup_new(FALSE);
305
306 if (!reconfig)
307 /* get the initial size */
308 screen_resize();
309
310 /* set the names */
311 screen_desktop_names = g_new(gchar*,
312 g_slist_length(config_desktops_names) + 1);
313 for (i = 0, it = config_desktops_names; it; ++i, it = g_slist_next(it))
314 screen_desktop_names[i] = it->data; /* dont strdup */
315 screen_desktop_names[i] = NULL;
316 PROP_SETSS(RootWindow(ob_display, ob_screen),
317 net_desktop_names, screen_desktop_names);
318 g_free(screen_desktop_names); /* dont free the individual strings */
319 screen_desktop_names = NULL;
320
321 if (!reconfig)
322 screen_num_desktops = 0;
323 screen_set_num_desktops(config_desktops_num);
324 if (!reconfig) {
325 guint32 d;
326 /* start on the current desktop when a wm was already running */
327 if (PROP_GET32(RootWindow(ob_display, ob_screen),
328 net_current_desktop, cardinal, &d) &&
329 d < screen_num_desktops)
330 {
331 screen_set_desktop(d);
332 } else if (session_desktop >= 0)
333 screen_set_desktop(MIN((guint)session_desktop,
334 screen_num_desktops));
335 else
336 screen_set_desktop(MIN(config_screen_firstdesk,
337 screen_num_desktops) - 1);
338
339 /* don't start in showing-desktop mode */
340 screen_showing_desktop = FALSE;
341 PROP_SET32(RootWindow(ob_display, ob_screen),
342 net_showing_desktop, cardinal, screen_showing_desktop);
343
344 screen_update_layout();
345 }
346 }
347
348 void screen_shutdown(gboolean reconfig)
349 {
350 Rect **r;
351
352 pager_popup_free(desktop_cycle_popup);
353
354 if (!reconfig) {
355 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
356 NoEventMask);
357
358 /* we're not running here no more! */
359 PROP_ERASE(RootWindow(ob_display, ob_screen), openbox_pid);
360 /* not without us */
361 PROP_ERASE(RootWindow(ob_display, ob_screen), net_supported);
362 /* don't keep this mode */
363 PROP_ERASE(RootWindow(ob_display, ob_screen), net_showing_desktop);
364
365 XDestroyWindow(ob_display, screen_support_win);
366 }
367
368 g_strfreev(screen_desktop_names);
369 screen_desktop_names = NULL;
370 for (r = area; *r; ++r)
371 g_free(*r);
372 g_free(area);
373 area = NULL;
374 }
375
376 void screen_resize()
377 {
378 static gint oldw = 0, oldh = 0;
379 gint w, h;
380 GList *it;
381 gulong geometry[2];
382
383 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
384 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
385
386 if (w == oldw && h == oldh) return;
387
388 oldw = w; oldh = h;
389
390 /* Set the _NET_DESKTOP_GEOMETRY hint */
391 screen_physical_size.width = geometry[0] = w;
392 screen_physical_size.height = geometry[1] = h;
393 PROP_SETA32(RootWindow(ob_display, ob_screen),
394 net_desktop_geometry, cardinal, geometry, 2);
395
396 if (ob_state() == OB_STATE_STARTING)
397 return;
398
399 screen_update_areas();
400 dock_configure();
401
402 for (it = client_list; it; it = g_list_next(it))
403 client_move_onscreen(it->data, FALSE);
404 }
405
406 void screen_set_num_desktops(guint num)
407 {
408 guint old;
409 gulong *viewport;
410 GList *it;
411
412 g_assert(num > 0);
413
414 if (screen_num_desktops == num) return;
415
416 old = screen_num_desktops;
417 screen_num_desktops = num;
418 PROP_SET32(RootWindow(ob_display, ob_screen),
419 net_number_of_desktops, cardinal, num);
420
421 /* set the viewport hint */
422 viewport = g_new0(gulong, num * 2);
423 PROP_SETA32(RootWindow(ob_display, ob_screen),
424 net_desktop_viewport, cardinal, viewport, num * 2);
425 g_free(viewport);
426
427 /* the number of rows/columns will differ */
428 screen_update_layout();
429
430 /* may be some unnamed desktops that we need to fill in with names */
431 screen_update_desktop_names();
432
433 /* move windows on desktops that will no longer exist! */
434 for (it = client_list; it; it = g_list_next(it)) {
435 ObClient *c = it->data;
436 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
437 client_set_desktop(c, num - 1, FALSE);
438 }
439
440 /* change our struts/area to match (after moving windows) */
441 screen_update_areas();
442
443 /* change our desktop if we're on one that no longer exists! */
444 if (screen_desktop >= screen_num_desktops)
445 screen_set_desktop(num - 1);
446 }
447
448 void screen_set_desktop(guint num)
449 {
450 ObClient *c;
451 GList *it;
452 guint old;
453
454 g_assert(num < screen_num_desktops);
455
456 old = screen_desktop;
457 screen_desktop = num;
458 PROP_SET32(RootWindow(ob_display, ob_screen),
459 net_current_desktop, cardinal, num);
460
461 if (old == num) return;
462
463 screen_last_desktop = old;
464
465 ob_debug("Moving to desktop %d\n", num+1);
466
467 if (moveresize_client)
468 client_set_desktop(moveresize_client, num, TRUE);
469
470 /* show windows before hiding the rest to lessen the enter/leave events */
471
472 /* show/hide windows from top to bottom */
473 for (it = stacking_list; it; it = g_list_next(it)) {
474 if (WINDOW_IS_CLIENT(it->data)) {
475 ObClient *c = it->data;
476 client_show(c);
477 }
478 }
479
480 /* hide windows from bottom to top */
481 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
482 if (WINDOW_IS_CLIENT(it->data)) {
483 ObClient *c = it->data;
484 client_hide(c);
485 }
486 }
487
488 /* have to try focus here because when you leave an empty desktop
489 there is no focus out to watch for */
490 if ((c = focus_fallback_target(TRUE, focus_client))) {
491 /* reduce flicker by hiliting now rather than waiting for the server
492 FocusIn event */
493 frame_adjust_focus(c->frame, TRUE);
494 client_focus(c);
495 }
496
497 event_ignore_queued_enters();
498
499 if (event_curtime != CurrentTime)
500 screen_desktop_user_time = event_curtime;
501 }
502
503 static void get_row_col(guint d, guint *r, guint *c)
504 {
505 switch (screen_desktop_layout.orientation) {
506 case OB_ORIENTATION_HORZ:
507 switch (screen_desktop_layout.start_corner) {
508 case OB_CORNER_TOPLEFT:
509 *r = d / screen_desktop_layout.columns;
510 *c = d % screen_desktop_layout.columns;
511 break;
512 case OB_CORNER_BOTTOMLEFT:
513 *r = screen_desktop_layout.rows - 1 -
514 d / screen_desktop_layout.columns;
515 *c = d % screen_desktop_layout.columns;
516 break;
517 case OB_CORNER_TOPRIGHT:
518 *r = d / screen_desktop_layout.columns;
519 *c = screen_desktop_layout.columns - 1 -
520 d % screen_desktop_layout.columns;
521 break;
522 case OB_CORNER_BOTTOMRIGHT:
523 *r = screen_desktop_layout.rows - 1 -
524 d / screen_desktop_layout.columns;
525 *c = screen_desktop_layout.columns - 1 -
526 d % screen_desktop_layout.columns;
527 break;
528 }
529 break;
530 case OB_ORIENTATION_VERT:
531 switch (screen_desktop_layout.start_corner) {
532 case OB_CORNER_TOPLEFT:
533 *r = d % screen_desktop_layout.rows;
534 *c = d / screen_desktop_layout.rows;
535 break;
536 case OB_CORNER_BOTTOMLEFT:
537 *r = screen_desktop_layout.rows - 1 -
538 d % screen_desktop_layout.rows;
539 *c = d / screen_desktop_layout.rows;
540 break;
541 case OB_CORNER_TOPRIGHT:
542 *r = d % screen_desktop_layout.rows;
543 *c = screen_desktop_layout.columns - 1 -
544 d / screen_desktop_layout.rows;
545 break;
546 case OB_CORNER_BOTTOMRIGHT:
547 *r = screen_desktop_layout.rows - 1 -
548 d % screen_desktop_layout.rows;
549 *c = screen_desktop_layout.columns - 1 -
550 d / screen_desktop_layout.rows;
551 break;
552 }
553 break;
554 }
555 }
556
557 static guint translate_row_col(guint r, guint c)
558 {
559 switch (screen_desktop_layout.orientation) {
560 case OB_ORIENTATION_HORZ:
561 switch (screen_desktop_layout.start_corner) {
562 case OB_CORNER_TOPLEFT:
563 return r % screen_desktop_layout.rows *
564 screen_desktop_layout.columns +
565 c % screen_desktop_layout.columns;
566 case OB_CORNER_BOTTOMLEFT:
567 return (screen_desktop_layout.rows - 1 -
568 r % screen_desktop_layout.rows) *
569 screen_desktop_layout.columns +
570 c % screen_desktop_layout.columns;
571 case OB_CORNER_TOPRIGHT:
572 return r % screen_desktop_layout.rows *
573 screen_desktop_layout.columns +
574 (screen_desktop_layout.columns - 1 -
575 c % screen_desktop_layout.columns);
576 case OB_CORNER_BOTTOMRIGHT:
577 return (screen_desktop_layout.rows - 1 -
578 r % screen_desktop_layout.rows) *
579 screen_desktop_layout.columns +
580 (screen_desktop_layout.columns - 1 -
581 c % screen_desktop_layout.columns);
582 }
583 case OB_ORIENTATION_VERT:
584 switch (screen_desktop_layout.start_corner) {
585 case OB_CORNER_TOPLEFT:
586 return c % screen_desktop_layout.columns *
587 screen_desktop_layout.rows +
588 r % screen_desktop_layout.rows;
589 case OB_CORNER_BOTTOMLEFT:
590 return c % screen_desktop_layout.columns *
591 screen_desktop_layout.rows +
592 (screen_desktop_layout.rows - 1 -
593 r % screen_desktop_layout.rows);
594 case OB_CORNER_TOPRIGHT:
595 return (screen_desktop_layout.columns - 1 -
596 c % screen_desktop_layout.columns) *
597 screen_desktop_layout.rows +
598 r % screen_desktop_layout.rows;
599 case OB_CORNER_BOTTOMRIGHT:
600 return (screen_desktop_layout.columns - 1 -
601 c % screen_desktop_layout.columns) *
602 screen_desktop_layout.rows +
603 (screen_desktop_layout.rows - 1 -
604 r % screen_desktop_layout.rows);
605 }
606 }
607 g_assert_not_reached();
608 return 0;
609 }
610
611 void screen_desktop_popup(guint d, gboolean show)
612 {
613 Rect *a;
614
615 if (!show) {
616 pager_popup_hide(desktop_cycle_popup);
617 } else {
618 a = screen_physical_area_monitor(0);
619 pager_popup_position(desktop_cycle_popup, CenterGravity,
620 a->x + a->width / 2, a->y + a->height / 2);
621 pager_popup_width(desktop_cycle_popup, MAX(a->width/3, POPUP_WIDTH));
622 pager_popup_height(desktop_cycle_popup, POPUP_HEIGHT);
623
624 pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
625 }
626 }
627
628 guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
629 gboolean dialog, gboolean done, gboolean cancel)
630 {
631 static gboolean first = TRUE;
632 static guint origd, d;
633 guint r, c;
634
635 if (cancel) {
636 d = origd;
637 goto done_cycle;
638 } else if (done && dialog) {
639 goto done_cycle;
640 }
641 if (first) {
642 first = FALSE;
643 d = origd = screen_desktop;
644 }
645
646 get_row_col(d, &r, &c);
647
648 if (linear) {
649 switch (dir) {
650 case OB_DIRECTION_EAST:
651 if (d < screen_num_desktops - 1)
652 ++d;
653 else if (wrap)
654 d = 0;
655 break;
656 case OB_DIRECTION_WEST:
657 if (d > 0)
658 --d;
659 else if (wrap)
660 d = screen_num_desktops - 1;
661 break;
662 default:
663 assert(0);
664 return screen_desktop;
665 }
666 } else {
667 switch (dir) {
668 case OB_DIRECTION_EAST:
669 ++c;
670 if (c >= screen_desktop_layout.columns) {
671 if (wrap) {
672 c = 0;
673 } else {
674 d = screen_desktop;
675 goto show_cycle_dialog;
676 }
677 }
678 d = translate_row_col(r, c);
679 if (d >= screen_num_desktops) {
680 if (wrap) {
681 ++c;
682 } else {
683 d = screen_desktop;
684 goto show_cycle_dialog;
685 }
686 }
687 break;
688 case OB_DIRECTION_WEST:
689 --c;
690 if (c >= screen_desktop_layout.columns) {
691 if (wrap) {
692 c = screen_desktop_layout.columns - 1;
693 } else {
694 d = screen_desktop;
695 goto show_cycle_dialog;
696 }
697 }
698 d = translate_row_col(r, c);
699 if (d >= screen_num_desktops) {
700 if (wrap) {
701 --c;
702 } else {
703 d = screen_desktop;
704 goto show_cycle_dialog;
705 }
706 }
707 break;
708 case OB_DIRECTION_SOUTH:
709 ++r;
710 if (r >= screen_desktop_layout.rows) {
711 if (wrap) {
712 r = 0;
713 } else {
714 d = screen_desktop;
715 goto show_cycle_dialog;
716 }
717 }
718 d = translate_row_col(r, c);
719 if (d >= screen_num_desktops) {
720 if (wrap) {
721 ++r;
722 } else {
723 d = screen_desktop;
724 goto show_cycle_dialog;
725 }
726 }
727 break;
728 case OB_DIRECTION_NORTH:
729 --r;
730 if (r >= screen_desktop_layout.rows) {
731 if (wrap) {
732 r = screen_desktop_layout.rows - 1;
733 } else {
734 d = screen_desktop;
735 goto show_cycle_dialog;
736 }
737 }
738 d = translate_row_col(r, c);
739 if (d >= screen_num_desktops) {
740 if (wrap) {
741 --r;
742 } else {
743 d = screen_desktop;
744 goto show_cycle_dialog;
745 }
746 }
747 break;
748 default:
749 assert(0);
750 return d = screen_desktop;
751 }
752
753 d = translate_row_col(r, c);
754 }
755
756 show_cycle_dialog:
757 if (dialog) {
758 screen_desktop_popup(d, TRUE);
759 return d;
760 }
761
762 done_cycle:
763 first = TRUE;
764
765 screen_desktop_popup(0, FALSE);
766
767 return d;
768 }
769
770 void screen_update_layout()
771 {
772 ObOrientation orient;
773 ObCorner corner;
774 guint rows;
775 guint cols;
776 guint32 *data;
777 guint num;
778 gboolean valid = FALSE;
779
780 if (PROP_GETA32(RootWindow(ob_display, ob_screen),
781 net_desktop_layout, cardinal, &data, &num)) {
782 if (num == 3 || num == 4) {
783
784 if (data[0] == prop_atoms.net_wm_orientation_vert)
785 orient = OB_ORIENTATION_VERT;
786 else if (data[0] == prop_atoms.net_wm_orientation_horz)
787 orient = OB_ORIENTATION_HORZ;
788 else
789 goto screen_update_layout_bail;
790
791 if (num < 4)
792 corner = OB_CORNER_TOPLEFT;
793 else {
794 if (data[3] == prop_atoms.net_wm_topleft)
795 corner = OB_CORNER_TOPLEFT;
796 else if (data[3] == prop_atoms.net_wm_topright)
797 corner = OB_CORNER_TOPRIGHT;
798 else if (data[3] == prop_atoms.net_wm_bottomright)
799 corner = OB_CORNER_BOTTOMRIGHT;
800 else if (data[3] == prop_atoms.net_wm_bottomleft)
801 corner = OB_CORNER_BOTTOMLEFT;
802 else
803 goto screen_update_layout_bail;
804 }
805
806 cols = data[1];
807 rows = data[2];
808
809 /* fill in a zero rows/columns */
810 if ((cols == 0 && rows == 0)) { /* both 0's is bad data.. */
811 goto screen_update_layout_bail;
812 } else {
813 if (cols == 0) {
814 cols = screen_num_desktops / rows;
815 if (rows * cols < screen_num_desktops)
816 cols++;
817 if (rows * cols >= screen_num_desktops + cols)
818 rows--;
819 } else if (rows == 0) {
820 rows = screen_num_desktops / cols;
821 if (cols * rows < screen_num_desktops)
822 rows++;
823 if (cols * rows >= screen_num_desktops + rows)
824 cols--;
825 }
826 }
827
828 /* bounds checking */
829 if (orient == OB_ORIENTATION_HORZ) {
830 cols = MIN(screen_num_desktops, cols);
831 rows = MIN(rows, (screen_num_desktops + cols - 1) / cols);
832 cols = screen_num_desktops / rows +
833 !!(screen_num_desktops % rows);
834 } else {
835 rows = MIN(screen_num_desktops, rows);
836 cols = MIN(cols, (screen_num_desktops + rows - 1) / rows);
837 rows = screen_num_desktops / cols +
838 !!(screen_num_desktops % cols);
839 }
840
841 valid = TRUE;
842 }
843 screen_update_layout_bail:
844 g_free(data);
845 }
846
847 if (!valid) {
848 /* defaults */
849 orient = OB_ORIENTATION_HORZ;
850 corner = OB_CORNER_TOPLEFT;
851 rows = 1;
852 cols = screen_num_desktops;
853 }
854
855 screen_desktop_layout.orientation = orient;
856 screen_desktop_layout.start_corner = corner;
857 screen_desktop_layout.rows = rows;
858 screen_desktop_layout.columns = cols;
859 }
860
861 void screen_update_desktop_names()
862 {
863 guint i;
864
865 /* empty the array */
866 g_strfreev(screen_desktop_names);
867 screen_desktop_names = NULL;
868
869 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
870 net_desktop_names, utf8, &screen_desktop_names))
871 for (i = 0; screen_desktop_names[i] && i <= screen_num_desktops; ++i);
872 else
873 i = 0;
874 if (i <= screen_num_desktops) {
875 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
876 screen_num_desktops + 1);
877 screen_desktop_names[screen_num_desktops] = NULL;
878 for (; i < screen_num_desktops; ++i)
879 screen_desktop_names[i] = g_strdup_printf("Desktop %i", i + 1);
880 }
881 }
882
883 void screen_show_desktop(gboolean show, gboolean restore_focus)
884 {
885 GList *it;
886
887 if (show == screen_showing_desktop) return; /* no change */
888
889 screen_showing_desktop = show;
890
891 if (show) {
892 /* bottom to top */
893 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
894 if (WINDOW_IS_CLIENT(it->data)) {
895 ObClient *client = it->data;
896 client_showhide(client);
897 }
898 }
899 } else {
900 /* top to bottom */
901 for (it = stacking_list; it; it = g_list_next(it)) {
902 if (WINDOW_IS_CLIENT(it->data)) {
903 ObClient *client = it->data;
904 client_showhide(client);
905 }
906 }
907 }
908
909 if (show) {
910 /* focus desktop */
911 for (it = focus_order; it; it = g_list_next(it)) {
912 ObClient *c = it->data;
913 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
914 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
915 client_focus(it->data))
916 break;
917 }
918 } else if (restore_focus) {
919 ObClient *c;
920
921 /* use NULL for the "old" argument because the desktop was focused
922 and we don't want to fallback to the desktop by default */
923 if ((c = focus_fallback_target(TRUE, NULL)))
924 client_focus(c);
925 }
926
927 show = !!show; /* make it boolean */
928 PROP_SET32(RootWindow(ob_display, ob_screen),
929 net_showing_desktop, cardinal, show);
930 }
931
932 void screen_install_colormap(ObClient *client, gboolean install)
933 {
934 if (client == NULL) {
935 if (install)
936 XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
937 else
938 XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
939 } else {
940 xerror_set_ignore(TRUE);
941 if (install) {
942 if (client->colormap != None)
943 XInstallColormap(RrDisplay(ob_rr_inst), client->colormap);
944 } else
945 XUninstallColormap(RrDisplay(ob_rr_inst), client->colormap);
946 xerror_set_ignore(FALSE);
947 }
948 }
949
950 static inline void
951 screen_area_add_strut_left(const StrutPartial *s, const Rect *monitor_area,
952 gint edge, Strut *ret)
953 {
954 if (s->left &&
955 ((s->left_end <= s->left_start) ||
956 (RECT_TOP(*monitor_area) < s->left_end &&
957 RECT_BOTTOM(*monitor_area) > s->left_start)))
958 ret->left = MAX(ret->left, edge);
959 }
960
961 static inline void
962 screen_area_add_strut_top(const StrutPartial *s, const Rect *monitor_area,
963 gint edge, Strut *ret)
964 {
965 if (s->top &&
966 ((s->top_end <= s->top_start) ||
967 (RECT_LEFT(*monitor_area) < s->top_end &&
968 RECT_RIGHT(*monitor_area) > s->top_start)))
969 ret->top = MAX(ret->top, edge);
970 }
971
972 static inline void
973 screen_area_add_strut_right(const StrutPartial *s, const Rect *monitor_area,
974 gint edge, Strut *ret)
975 {
976 if (s->right &&
977 ((s->right_end <= s->right_start) ||
978 (RECT_TOP(*monitor_area) < s->right_end &&
979 RECT_BOTTOM(*monitor_area) > s->right_start)))
980 ret->right = MAX(ret->right, edge);
981 }
982
983 static inline void
984 screen_area_add_strut_bottom(const StrutPartial *s, const Rect *monitor_area,
985 gint edge, Strut *ret)
986 {
987 if (s->bottom &&
988 ((s->bottom_end <= s->bottom_start) ||
989 (RECT_LEFT(*monitor_area) < s->bottom_end &&
990 RECT_RIGHT(*monitor_area) > s->bottom_start)))
991 ret->bottom = MAX(ret->bottom, edge);
992 }
993
994 void screen_update_areas()
995 {
996 guint i, x;
997 gulong *dims;
998 GList *it;
999 gint o;
1000
1001 g_free(monitor_area);
1002 extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
1003
1004 if (area) {
1005 for (i = 0; area[i]; ++i)
1006 g_free(area[i]);
1007 g_free(area);
1008 }
1009
1010 area = g_new(Rect*, screen_num_desktops + 2);
1011 for (i = 0; i < screen_num_desktops + 1; ++i)
1012 area[i] = g_new0(Rect, screen_num_monitors + 1);
1013 area[i] = NULL;
1014
1015 dims = g_new(gulong, 4 * screen_num_desktops);
1016
1017 for (i = 0; i < screen_num_desktops + 1; ++i) {
1018 Strut *struts;
1019 gint l, r, t, b;
1020
1021 struts = g_new0(Strut, screen_num_monitors);
1022
1023 /* calc the xinerama areas */
1024 for (x = 0; x < screen_num_monitors; ++x) {
1025 area[i][x] = monitor_area[x];
1026 if (x == 0) {
1027 l = monitor_area[x].x;
1028 t = monitor_area[x].y;
1029 r = monitor_area[x].x + monitor_area[x].width - 1;
1030 b = monitor_area[x].y + monitor_area[x].height - 1;
1031 } else {
1032 l = MIN(l, monitor_area[x].x);
1033 t = MIN(t, monitor_area[x].y);
1034 r = MAX(r, monitor_area[x].x + monitor_area[x].width - 1);
1035 b = MAX(b, monitor_area[x].y + monitor_area[x].height - 1);
1036 }
1037 }
1038 RECT_SET(area[i][x], l, t, r - l + 1, b - t + 1);
1039
1040 /* apply the struts */
1041
1042 /* find the left-most xin heads, i do this in 2 loops :| */
1043 o = area[i][0].x;
1044 for (x = 1; x < screen_num_monitors; ++x)
1045 o = MIN(o, area[i][x].x);
1046
1047 for (x = 0; x < screen_num_monitors; ++x) {
1048 for (it = client_list; it; it = g_list_next(it)) {
1049 ObClient *c = it->data;
1050 screen_area_add_strut_left(&c->strut,
1051 &monitor_area[x],
1052 o + c->strut.left - area[i][x].x,
1053 &struts[x]);
1054 }
1055 screen_area_add_strut_left(&dock_strut,
1056 &monitor_area[x],
1057 o + dock_strut.left - area[i][x].x,
1058 &struts[x]);
1059
1060 area[i][x].x += struts[x].left;
1061 area[i][x].width -= struts[x].left;
1062 }
1063
1064 /* find the top-most xin heads, i do this in 2 loops :| */
1065 o = area[i][0].y;
1066 for (x = 1; x < screen_num_monitors; ++x)
1067 o = MIN(o, area[i][x].y);
1068
1069 for (x = 0; x < screen_num_monitors; ++x) {
1070 for (it = client_list; it; it = g_list_next(it)) {
1071 ObClient *c = it->data;
1072 screen_area_add_strut_top(&c->strut,
1073 &monitor_area[x],
1074 o + c->strut.top - area[i][x].y,
1075 &struts[x]);
1076 }
1077 screen_area_add_strut_top(&dock_strut,
1078 &monitor_area[x],
1079 o + dock_strut.top - area[i][x].y,
1080 &struts[x]);
1081
1082 area[i][x].y += struts[x].top;
1083 area[i][x].height -= struts[x].top;
1084 }
1085
1086 /* find the right-most xin heads, i do this in 2 loops :| */
1087 o = area[i][0].x + area[i][0].width - 1;
1088 for (x = 1; x < screen_num_monitors; ++x)
1089 o = MAX(o, area[i][x].x + area[i][x].width - 1);
1090
1091 for (x = 0; x < screen_num_monitors; ++x) {
1092 for (it = client_list; it; it = g_list_next(it)) {
1093 ObClient *c = it->data;
1094 screen_area_add_strut_right(&c->strut,
1095 &monitor_area[x],
1096 (area[i][x].x +
1097 area[i][x].width - 1) -
1098 (o - c->strut.right),
1099 &struts[x]);
1100 }
1101 screen_area_add_strut_right(&dock_strut,
1102 &monitor_area[x],
1103 (area[i][x].x +
1104 area[i][x].width - 1) -
1105 (o - dock_strut.right),
1106 &struts[x]);
1107
1108 area[i][x].width -= struts[x].right;
1109 }
1110
1111 /* find the bottom-most xin heads, i do this in 2 loops :| */
1112 o = area[i][0].y + area[i][0].height - 1;
1113 for (x = 1; x < screen_num_monitors; ++x)
1114 o = MAX(o, area[i][x].y + area[i][x].height - 1);
1115
1116 for (x = 0; x < screen_num_monitors; ++x) {
1117 for (it = client_list; it; it = g_list_next(it)) {
1118 ObClient *c = it->data;
1119 screen_area_add_strut_bottom(&c->strut,
1120 &monitor_area[x],
1121 (area[i][x].y +
1122 area[i][x].height - 1) - \
1123 (o - c->strut.bottom),
1124 &struts[x]);
1125 }
1126 screen_area_add_strut_bottom(&dock_strut,
1127 &monitor_area[x],
1128 (area[i][x].y +
1129 area[i][x].height - 1) - \
1130 (o - dock_strut.bottom),
1131 &struts[x]);
1132
1133 area[i][x].height -= struts[x].bottom;
1134 }
1135
1136 l = RECT_LEFT(area[i][0]);
1137 t = RECT_TOP(area[i][0]);
1138 r = RECT_RIGHT(area[i][0]);
1139 b = RECT_BOTTOM(area[i][0]);
1140 for (x = 1; x < screen_num_monitors; ++x) {
1141 l = MIN(l, RECT_LEFT(area[i][x]));
1142 t = MIN(l, RECT_TOP(area[i][x]));
1143 r = MAX(r, RECT_RIGHT(area[i][x]));
1144 b = MAX(b, RECT_BOTTOM(area[i][x]));
1145 }
1146 RECT_SET(area[i][screen_num_monitors], l, t,
1147 r - l + 1, b - t + 1);
1148
1149 /* XXX optimize when this is run? */
1150
1151 /* the area has changed, adjust all the maximized
1152 windows */
1153 for (it = client_list; it; it = g_list_next(it)) {
1154 ObClient *c = it->data;
1155 if (i < screen_num_desktops) {
1156 if (c->desktop == i)
1157 client_reconfigure(c);
1158 } else if (c->desktop == DESKTOP_ALL)
1159 client_reconfigure(c);
1160 }
1161 if (i < screen_num_desktops) {
1162 /* don't set these for the 'all desktops' area */
1163 dims[(i * 4) + 0] = area[i][screen_num_monitors].x;
1164 dims[(i * 4) + 1] = area[i][screen_num_monitors].y;
1165 dims[(i * 4) + 2] = area[i][screen_num_monitors].width;
1166 dims[(i * 4) + 3] = area[i][screen_num_monitors].height;
1167 }
1168
1169 g_free(struts);
1170 }
1171
1172 PROP_SETA32(RootWindow(ob_display, ob_screen), net_workarea, cardinal,
1173 dims, 4 * screen_num_desktops);
1174
1175 g_free(dims);
1176 }
1177
1178 Rect *screen_area(guint desktop)
1179 {
1180 return screen_area_monitor(desktop, screen_num_monitors);
1181 }
1182
1183 Rect *screen_area_monitor(guint desktop, guint head)
1184 {
1185 if (head > screen_num_monitors)
1186 return NULL;
1187 if (desktop >= screen_num_desktops) {
1188 if (desktop == DESKTOP_ALL)
1189 return &area[screen_num_desktops][head];
1190 return NULL;
1191 }
1192 return &area[desktop][head];
1193 }
1194
1195 guint screen_find_monitor(Rect *search)
1196 {
1197 guint i;
1198 guint most = 0;
1199 guint mostv = 0;
1200
1201 for (i = 0; i < screen_num_monitors; ++i) {
1202 Rect *area = screen_physical_area_monitor(i);
1203 if (RECT_INTERSECTS_RECT(*area, *search)) {
1204 Rect r;
1205 guint v;
1206
1207 RECT_SET_INTERSECTION(r, *area, *search);
1208 v = r.width * r.height;
1209
1210 if (v > mostv) {
1211 mostv = v;
1212 most = i;
1213 }
1214 }
1215 }
1216 return most;
1217 }
1218
1219 Rect *screen_physical_area()
1220 {
1221 return screen_physical_area_monitor(screen_num_monitors);
1222 }
1223
1224 Rect *screen_physical_area_monitor(guint head)
1225 {
1226 if (head > screen_num_monitors)
1227 return NULL;
1228 return &monitor_area[head];
1229 }
1230
1231 void screen_set_root_cursor()
1232 {
1233 if (sn_app_starting())
1234 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1235 ob_cursor(OB_CURSOR_BUSY));
1236 else
1237 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1238 ob_cursor(OB_CURSOR_POINTER));
1239 }
1240
1241 gboolean screen_pointer_pos(gint *x, gint *y)
1242 {
1243 Window w;
1244 gint i;
1245 guint u;
1246
1247 return !!XQueryPointer(ob_display, RootWindow(ob_display, ob_screen),
1248 &w, &w, x, y, &i, &i, &u);
1249 }
my patches for the openbox window manager
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