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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 ObDesktopLayout 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 XLowerWindow(ob_display, screen_support_win);
174
175 if (!replace_wm()) {
176 XDestroyWindow(ob_display, screen_support_win);
177 return FALSE;
178 }
179
180 xerror_set_ignore(TRUE);
181 xerror_occured = FALSE;
182 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
183 ROOT_EVENTMASK);
184 xerror_set_ignore(FALSE);
185 if (xerror_occured) {
186 g_message(_("A window manager is already running on screen %d"),
187 ob_screen);
188
189 XDestroyWindow(ob_display, screen_support_win);
190 return FALSE;
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_action_above;
261 supported[i++] = prop_atoms.net_wm_action_below;
262 supported[i++] = prop_atoms.net_wm_state;
263 supported[i++] = prop_atoms.net_wm_state_modal;
264 supported[i++] = prop_atoms.net_wm_state_maximized_vert;
265 supported[i++] = prop_atoms.net_wm_state_maximized_horz;
266 supported[i++] = prop_atoms.net_wm_state_shaded;
267 supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
268 supported[i++] = prop_atoms.net_wm_state_skip_pager;
269 supported[i++] = prop_atoms.net_wm_state_hidden;
270 supported[i++] = prop_atoms.net_wm_state_fullscreen;
271 supported[i++] = prop_atoms.net_wm_state_above;
272 supported[i++] = prop_atoms.net_wm_state_below;
273 supported[i++] = prop_atoms.net_wm_state_demands_attention;
274 supported[i++] = prop_atoms.net_moveresize_window;
275 supported[i++] = prop_atoms.net_wm_moveresize;
276 supported[i++] = prop_atoms.net_wm_user_time;
277 supported[i++] = prop_atoms.net_wm_user_time_window;
278 supported[i++] = prop_atoms.net_frame_extents;
279 supported[i++] = prop_atoms.net_request_frame_extents;
280 supported[i++] = prop_atoms.net_restack_window;
281 supported[i++] = prop_atoms.net_startup_id;
282 #ifdef SYNC
283 supported[i++] = prop_atoms.net_wm_sync_request;
284 supported[i++] = prop_atoms.net_wm_sync_request_counter;
285 #endif
286
287 supported[i++] = prop_atoms.kde_wm_change_state;
288 supported[i++] = prop_atoms.kde_net_wm_frame_strut;
289 supported[i++] = prop_atoms.kde_net_wm_window_type_override;
290
291 supported[i++] = prop_atoms.ob_wm_action_undecorate;
292 supported[i++] = prop_atoms.ob_wm_state_undecorated;
293 supported[i++] = prop_atoms.openbox_pid;
294 supported[i++] = prop_atoms.ob_config;
295 supported[i++] = prop_atoms.ob_control;
296 g_assert(i == num_support);
297
298 PROP_SETA32(RootWindow(ob_display, ob_screen),
299 net_supported, atom, supported, num_support);
300 g_free(supported);
301
302 return TRUE;
303 }
304
305 void screen_startup(gboolean reconfig)
306 {
307 gchar **names = NULL;
308 guint32 d;
309 gboolean namesexist = FALSE;
310
311 desktop_cycle_popup = pager_popup_new(FALSE);
312 pager_popup_height(desktop_cycle_popup, POPUP_HEIGHT);
313
314 if (reconfig) {
315 /* update the pager popup's width */
316 pager_popup_text_width_to_strings(desktop_cycle_popup,
317 screen_desktop_names,
318 screen_num_desktops);
319 return;
320 }
321
322 /* get the initial size */
323 screen_resize();
324
325 /* have names already been set for the desktops? */
326 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
327 net_desktop_names, utf8, &names))
328 {
329 g_strfreev(names);
330 namesexist = TRUE;
331 }
332
333 /* if names don't exist and we have session names, set those.
334 do this stuff BEFORE setting the number of desktops, because that
335 will create default names for them
336 */
337 if (!namesexist && session_desktop_names != NULL) {
338 guint i, numnames;
339 GSList *it;
340
341 /* get the desktop names */
342 numnames = g_slist_length(session_desktop_names);
343 names = g_new(gchar*, numnames + 1);
344 names[numnames] = NULL;
345 for (i = 0, it = session_desktop_names; it; ++i, it = g_slist_next(it))
346 names[i] = g_strdup(it->data);
347
348 /* set the root window property */
349 PROP_SETSS(RootWindow(ob_display, ob_screen), net_desktop_names,names);
350
351 g_strfreev(names);
352 }
353
354 /* set the number of desktops, if it's not already set.
355
356 this will also set the default names from the config file up for
357 desktops that don't have names yet */
358 screen_num_desktops = 0;
359 if (PROP_GET32(RootWindow(ob_display, ob_screen),
360 net_number_of_desktops, cardinal, &d))
361 screen_set_num_desktops(d);
362 /* restore from session if possible */
363 else if (session_num_desktops)
364 screen_set_num_desktops(session_num_desktops);
365 else
366 screen_set_num_desktops(config_desktops_num);
367
368 /* start on the current desktop when a wm was already running */
369 if (PROP_GET32(RootWindow(ob_display, ob_screen),
370 net_current_desktop, cardinal, &d) &&
371 d < screen_num_desktops)
372 {
373 screen_set_desktop(d, FALSE);
374 } else if (session_desktop >= 0)
375 screen_set_desktop(MIN((guint)session_desktop,
376 screen_num_desktops), FALSE);
377 else
378 screen_set_desktop(MIN(config_screen_firstdesk,
379 screen_num_desktops) - 1, FALSE);
380
381 /* don't start in showing-desktop mode */
382 screen_showing_desktop = FALSE;
383 PROP_SET32(RootWindow(ob_display, ob_screen),
384 net_showing_desktop, cardinal, screen_showing_desktop);
385
386 if (session_desktop_layout_present)
387 screen_desktop_layout = session_desktop_layout;
388 else
389 screen_update_layout();
390 }
391
392 void screen_shutdown(gboolean reconfig)
393 {
394 Rect **r;
395
396 pager_popup_free(desktop_cycle_popup);
397
398 if (reconfig)
399 return;
400
401 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
402 NoEventMask);
403
404 /* we're not running here no more! */
405 PROP_ERASE(RootWindow(ob_display, ob_screen), openbox_pid);
406 /* not without us */
407 PROP_ERASE(RootWindow(ob_display, ob_screen), net_supported);
408 /* don't keep this mode */
409 PROP_ERASE(RootWindow(ob_display, ob_screen), net_showing_desktop);
410
411 XDestroyWindow(ob_display, screen_support_win);
412
413 g_strfreev(screen_desktop_names);
414 screen_desktop_names = NULL;
415
416 for (r = area; *r; ++r)
417 g_free(*r);
418 g_free(area);
419 area = NULL;
420 }
421
422 void screen_resize()
423 {
424 static gint oldw = 0, oldh = 0;
425 gint w, h;
426 GList *it;
427 gulong geometry[2];
428
429 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
430 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
431
432 if (w == oldw && h == oldh) return;
433
434 oldw = w; oldh = h;
435
436 /* Set the _NET_DESKTOP_GEOMETRY hint */
437 screen_physical_size.width = geometry[0] = w;
438 screen_physical_size.height = geometry[1] = h;
439 PROP_SETA32(RootWindow(ob_display, ob_screen),
440 net_desktop_geometry, cardinal, geometry, 2);
441
442 if (ob_state() == OB_STATE_STARTING)
443 return;
444
445 screen_update_areas();
446 dock_configure();
447
448 for (it = client_list; it; it = g_list_next(it))
449 client_move_onscreen(it->data, FALSE);
450 }
451
452 void screen_set_num_desktops(guint num)
453 {
454 guint old;
455 gulong *viewport;
456 GList *it;
457
458 g_assert(num > 0);
459
460 if (screen_num_desktops == num) return;
461
462 old = screen_num_desktops;
463 screen_num_desktops = num;
464 PROP_SET32(RootWindow(ob_display, ob_screen),
465 net_number_of_desktops, cardinal, num);
466
467 /* set the viewport hint */
468 viewport = g_new0(gulong, num * 2);
469 PROP_SETA32(RootWindow(ob_display, ob_screen),
470 net_desktop_viewport, cardinal, viewport, num * 2);
471 g_free(viewport);
472
473 /* the number of rows/columns will differ */
474 screen_update_layout();
475
476 /* move windows on desktops that will no longer exist! */
477 for (it = client_list; it; it = g_list_next(it)) {
478 ObClient *c = it->data;
479 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
480 client_set_desktop(c, num - 1, FALSE);
481 }
482
483 /* change our struts/area to match (after moving windows) */
484 screen_update_areas();
485
486 /* may be some unnamed desktops that we need to fill in with names
487 (after updating the areas so the popup can resize) */
488 screen_update_desktop_names();
489
490 /* change our desktop if we're on one that no longer exists! */
491 if (screen_desktop >= screen_num_desktops)
492 screen_set_desktop(num - 1, TRUE);
493 }
494
495 void screen_set_desktop(guint num, gboolean dofocus)
496 {
497 ObClient *c;
498 GList *it;
499 guint old;
500
501 g_assert(num < screen_num_desktops);
502
503 old = screen_desktop;
504 screen_desktop = num;
505 PROP_SET32(RootWindow(ob_display, ob_screen),
506 net_current_desktop, cardinal, num);
507
508 if (old == num) return;
509
510 screen_last_desktop = old;
511
512 ob_debug("Moving to desktop %d\n", num+1);
513
514 if (moveresize_client)
515 client_set_desktop(moveresize_client, num, TRUE);
516
517 /* show windows before hiding the rest to lessen the enter/leave events */
518
519 /* show windows from top to bottom */
520 for (it = stacking_list; it; it = g_list_next(it)) {
521 if (WINDOW_IS_CLIENT(it->data)) {
522 ObClient *c = it->data;
523 client_show(c);
524 }
525 }
526
527 /* have to try focus here because when you leave an empty desktop
528 there is no focus out to watch for
529
530 do this before hiding the windows so if helper windows are coming
531 with us, they don't get hidden
532 */
533 if (dofocus && (c = focus_fallback(TRUE))) {
534 /* only do the flicker reducing stuff ahead of time if we are going
535 to call xsetinputfocus on the window ourselves. otherwise there is
536 no guarantee the window will actually take focus.. */
537 if (c->can_focus) {
538 /* reduce flicker by hiliting now rather than waiting for the
539 server FocusIn event */
540 frame_adjust_focus(c->frame, TRUE);
541 /* do this here so that if you switch desktops to a window with
542 helper windows then the helper windows won't flash */
543 client_bring_helper_windows(c);
544 }
545 }
546
547 /* hide windows from bottom to top */
548 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
549 if (WINDOW_IS_CLIENT(it->data)) {
550 ObClient *c = it->data;
551 client_hide(c);
552 }
553 }
554
555 event_ignore_all_queued_enters();
556
557 if (event_curtime != CurrentTime)
558 screen_desktop_user_time = event_curtime;
559 }
560
561 static void get_row_col(guint d, guint *r, guint *c)
562 {
563 switch (screen_desktop_layout.orientation) {
564 case OB_ORIENTATION_HORZ:
565 switch (screen_desktop_layout.start_corner) {
566 case OB_CORNER_TOPLEFT:
567 *r = d / screen_desktop_layout.columns;
568 *c = d % screen_desktop_layout.columns;
569 break;
570 case OB_CORNER_BOTTOMLEFT:
571 *r = screen_desktop_layout.rows - 1 -
572 d / screen_desktop_layout.columns;
573 *c = d % screen_desktop_layout.columns;
574 break;
575 case OB_CORNER_TOPRIGHT:
576 *r = d / screen_desktop_layout.columns;
577 *c = screen_desktop_layout.columns - 1 -
578 d % screen_desktop_layout.columns;
579 break;
580 case OB_CORNER_BOTTOMRIGHT:
581 *r = screen_desktop_layout.rows - 1 -
582 d / screen_desktop_layout.columns;
583 *c = screen_desktop_layout.columns - 1 -
584 d % screen_desktop_layout.columns;
585 break;
586 }
587 break;
588 case OB_ORIENTATION_VERT:
589 switch (screen_desktop_layout.start_corner) {
590 case OB_CORNER_TOPLEFT:
591 *r = d % screen_desktop_layout.rows;
592 *c = d / screen_desktop_layout.rows;
593 break;
594 case OB_CORNER_BOTTOMLEFT:
595 *r = screen_desktop_layout.rows - 1 -
596 d % screen_desktop_layout.rows;
597 *c = d / screen_desktop_layout.rows;
598 break;
599 case OB_CORNER_TOPRIGHT:
600 *r = d % screen_desktop_layout.rows;
601 *c = screen_desktop_layout.columns - 1 -
602 d / screen_desktop_layout.rows;
603 break;
604 case OB_CORNER_BOTTOMRIGHT:
605 *r = screen_desktop_layout.rows - 1 -
606 d % screen_desktop_layout.rows;
607 *c = screen_desktop_layout.columns - 1 -
608 d / screen_desktop_layout.rows;
609 break;
610 }
611 break;
612 }
613 }
614
615 static guint translate_row_col(guint r, guint c)
616 {
617 switch (screen_desktop_layout.orientation) {
618 case OB_ORIENTATION_HORZ:
619 switch (screen_desktop_layout.start_corner) {
620 case OB_CORNER_TOPLEFT:
621 return r % screen_desktop_layout.rows *
622 screen_desktop_layout.columns +
623 c % screen_desktop_layout.columns;
624 case OB_CORNER_BOTTOMLEFT:
625 return (screen_desktop_layout.rows - 1 -
626 r % screen_desktop_layout.rows) *
627 screen_desktop_layout.columns +
628 c % screen_desktop_layout.columns;
629 case OB_CORNER_TOPRIGHT:
630 return r % screen_desktop_layout.rows *
631 screen_desktop_layout.columns +
632 (screen_desktop_layout.columns - 1 -
633 c % screen_desktop_layout.columns);
634 case OB_CORNER_BOTTOMRIGHT:
635 return (screen_desktop_layout.rows - 1 -
636 r % screen_desktop_layout.rows) *
637 screen_desktop_layout.columns +
638 (screen_desktop_layout.columns - 1 -
639 c % screen_desktop_layout.columns);
640 }
641 case OB_ORIENTATION_VERT:
642 switch (screen_desktop_layout.start_corner) {
643 case OB_CORNER_TOPLEFT:
644 return c % screen_desktop_layout.columns *
645 screen_desktop_layout.rows +
646 r % screen_desktop_layout.rows;
647 case OB_CORNER_BOTTOMLEFT:
648 return c % screen_desktop_layout.columns *
649 screen_desktop_layout.rows +
650 (screen_desktop_layout.rows - 1 -
651 r % screen_desktop_layout.rows);
652 case OB_CORNER_TOPRIGHT:
653 return (screen_desktop_layout.columns - 1 -
654 c % screen_desktop_layout.columns) *
655 screen_desktop_layout.rows +
656 r % screen_desktop_layout.rows;
657 case OB_CORNER_BOTTOMRIGHT:
658 return (screen_desktop_layout.columns - 1 -
659 c % screen_desktop_layout.columns) *
660 screen_desktop_layout.rows +
661 (screen_desktop_layout.rows - 1 -
662 r % screen_desktop_layout.rows);
663 }
664 }
665 g_assert_not_reached();
666 return 0;
667 }
668
669 void screen_desktop_popup(guint d, gboolean show)
670 {
671 Rect *a;
672
673 if (!show) {
674 pager_popup_hide(desktop_cycle_popup);
675 } else {
676 a = screen_physical_area_monitor(0);
677 pager_popup_position(desktop_cycle_popup, CenterGravity,
678 a->x + a->width / 2, a->y + a->height / 2);
679 pager_popup_icon_size_multiplier(desktop_cycle_popup,
680 (screen_desktop_layout.columns /
681 screen_desktop_layout.rows) / 2,
682 (screen_desktop_layout.rows/
683 screen_desktop_layout.columns) / 2);
684 pager_popup_max_width(desktop_cycle_popup,
685 MAX(a->width/3, POPUP_WIDTH));
686 pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
687 }
688 }
689
690 guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
691 gboolean dialog, gboolean done, gboolean cancel)
692 {
693 guint r, c;
694 static guint d = (guint)-1;
695 guint ret, oldd;
696
697 if (d == (guint)-1)
698 d = screen_desktop;
699
700 if ((cancel || done) && dialog)
701 goto show_cycle_dialog;
702
703 oldd = d;
704 get_row_col(d, &r, &c);
705
706 if (linear) {
707 switch (dir) {
708 case OB_DIRECTION_EAST:
709 if (d < screen_num_desktops - 1)
710 ++d;
711 else if (wrap)
712 d = 0;
713 break;
714 case OB_DIRECTION_WEST:
715 if (d > 0)
716 --d;
717 else if (wrap)
718 d = screen_num_desktops - 1;
719 break;
720 default:
721 assert(0);
722 return screen_desktop;
723 }
724 } else {
725 switch (dir) {
726 case OB_DIRECTION_EAST:
727 ++c;
728 if (c >= screen_desktop_layout.columns) {
729 if (wrap)
730 c = 0;
731 else
732 goto show_cycle_dialog;
733 }
734 d = translate_row_col(r, c);
735 if (d >= screen_num_desktops) {
736 if (wrap) {
737 ++c;
738 } else {
739 d = oldd;
740 goto show_cycle_dialog;
741 }
742 }
743 break;
744 case OB_DIRECTION_WEST:
745 --c;
746 if (c >= screen_desktop_layout.columns) {
747 if (wrap)
748 c = screen_desktop_layout.columns - 1;
749 else
750 goto show_cycle_dialog;
751 }
752 d = translate_row_col(r, c);
753 if (d >= screen_num_desktops) {
754 if (wrap) {
755 --c;
756 } else {
757 d = oldd;
758 goto show_cycle_dialog;
759 }
760 }
761 break;
762 case OB_DIRECTION_SOUTH:
763 ++r;
764 if (r >= screen_desktop_layout.rows) {
765 if (wrap)
766 r = 0;
767 else
768 goto show_cycle_dialog;
769 }
770 d = translate_row_col(r, c);
771 if (d >= screen_num_desktops) {
772 if (wrap) {
773 ++r;
774 } else {
775 d = oldd;
776 goto show_cycle_dialog;
777 }
778 }
779 break;
780 case OB_DIRECTION_NORTH:
781 --r;
782 if (r >= screen_desktop_layout.rows) {
783 if (wrap)
784 r = screen_desktop_layout.rows - 1;
785 else
786 goto show_cycle_dialog;
787 }
788 d = translate_row_col(r, c);
789 if (d >= screen_num_desktops) {
790 if (wrap) {
791 --r;
792 } else {
793 d = oldd;
794 goto show_cycle_dialog;
795 }
796 }
797 break;
798 default:
799 assert(0);
800 return d = screen_desktop;
801 }
802
803 d = translate_row_col(r, c);
804 }
805
806 show_cycle_dialog:
807 if (dialog && !cancel && !done) {
808 screen_desktop_popup(d, TRUE);
809 } else
810 screen_desktop_popup(0, FALSE);
811 ret = d;
812
813 if (!dialog || cancel || done)
814 d = (guint)-1;
815
816 return ret;
817 }
818
819 void screen_update_layout()
820 {
821 ObOrientation orient;
822 ObCorner corner;
823 guint rows;
824 guint cols;
825 guint32 *data;
826 guint num;
827 gboolean valid = FALSE;
828
829 if (PROP_GETA32(RootWindow(ob_display, ob_screen),
830 net_desktop_layout, cardinal, &data, &num)) {
831 if (num == 3 || num == 4) {
832
833 if (data[0] == prop_atoms.net_wm_orientation_vert)
834 orient = OB_ORIENTATION_VERT;
835 else if (data[0] == prop_atoms.net_wm_orientation_horz)
836 orient = OB_ORIENTATION_HORZ;
837 else
838 goto screen_update_layout_bail;
839
840 if (num < 4)
841 corner = OB_CORNER_TOPLEFT;
842 else {
843 if (data[3] == prop_atoms.net_wm_topleft)
844 corner = OB_CORNER_TOPLEFT;
845 else if (data[3] == prop_atoms.net_wm_topright)
846 corner = OB_CORNER_TOPRIGHT;
847 else if (data[3] == prop_atoms.net_wm_bottomright)
848 corner = OB_CORNER_BOTTOMRIGHT;
849 else if (data[3] == prop_atoms.net_wm_bottomleft)
850 corner = OB_CORNER_BOTTOMLEFT;
851 else
852 goto screen_update_layout_bail;
853 }
854
855 cols = data[1];
856 rows = data[2];
857
858 /* fill in a zero rows/columns */
859 if ((cols == 0 && rows == 0)) { /* both 0's is bad data.. */
860 goto screen_update_layout_bail;
861 } else {
862 if (cols == 0) {
863 cols = screen_num_desktops / rows;
864 if (rows * cols < screen_num_desktops)
865 cols++;
866 if (rows * cols >= screen_num_desktops + cols)
867 rows--;
868 } else if (rows == 0) {
869 rows = screen_num_desktops / cols;
870 if (cols * rows < screen_num_desktops)
871 rows++;
872 if (cols * rows >= screen_num_desktops + rows)
873 cols--;
874 }
875 }
876
877 /* bounds checking */
878 if (orient == OB_ORIENTATION_HORZ) {
879 cols = MIN(screen_num_desktops, cols);
880 rows = MIN(rows, (screen_num_desktops + cols - 1) / cols);
881 cols = screen_num_desktops / rows +
882 !!(screen_num_desktops % rows);
883 } else {
884 rows = MIN(screen_num_desktops, rows);
885 cols = MIN(cols, (screen_num_desktops + rows - 1) / rows);
886 rows = screen_num_desktops / cols +
887 !!(screen_num_desktops % cols);
888 }
889
890 valid = TRUE;
891 }
892 screen_update_layout_bail:
893 g_free(data);
894 }
895
896 if (!valid) {
897 /* defaults */
898 orient = OB_ORIENTATION_HORZ;
899 corner = OB_CORNER_TOPLEFT;
900 rows = 1;
901 cols = screen_num_desktops;
902 }
903
904 screen_desktop_layout.orientation = orient;
905 screen_desktop_layout.start_corner = corner;
906 screen_desktop_layout.rows = rows;
907 screen_desktop_layout.columns = cols;
908 }
909
910 void screen_update_desktop_names()
911 {
912 guint i;
913
914 /* empty the array */
915 g_strfreev(screen_desktop_names);
916 screen_desktop_names = NULL;
917
918 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
919 net_desktop_names, utf8, &screen_desktop_names))
920 for (i = 0; screen_desktop_names[i] && i < screen_num_desktops; ++i);
921 else
922 i = 0;
923 if (i < screen_num_desktops) {
924 GSList *it;
925
926 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
927 screen_num_desktops + 1);
928 screen_desktop_names[screen_num_desktops] = NULL;
929
930 it = g_slist_nth(config_desktops_names, i);
931
932 for (; i < screen_num_desktops; ++i) {
933 if (it)
934 /* use the names from the config file when possible */
935 screen_desktop_names[i] = g_strdup(it->data);
936 else
937 /* make up a nice name if it's not though */
938 screen_desktop_names[i] = g_strdup_printf(_("desktop %i"),
939 i + 1);
940 if (it) it = g_slist_next(it);
941 }
942
943 /* if we changed any names, then set the root property so we can
944 all agree on the names */
945 PROP_SETSS(RootWindow(ob_display, ob_screen), net_desktop_names,
946 screen_desktop_names);
947 }
948
949 /* resize the pager for these names */
950 pager_popup_text_width_to_strings(desktop_cycle_popup,
951 screen_desktop_names,
952 screen_num_desktops);
953 }
954
955 void screen_show_desktop(gboolean show, ObClient *show_only)
956 {
957 GList *it;
958
959 if (show == screen_showing_desktop) return; /* no change */
960
961 screen_showing_desktop = show;
962
963 if (show) {
964 /* hide windows bottom to top */
965 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
966 if (WINDOW_IS_CLIENT(it->data)) {
967 ObClient *client = it->data;
968 client_showhide(client);
969 }
970 }
971 }
972 else {
973 /* restore windows top to bottom */
974 for (it = stacking_list; it; it = g_list_next(it)) {
975 if (WINDOW_IS_CLIENT(it->data)) {
976 ObClient *client = it->data;
977 if (client_should_show(client)) {
978 if (!show_only || client == show_only)
979 client_show(client);
980 else
981 client_iconify(client, TRUE, FALSE, TRUE);
982 }
983 }
984 }
985 }
986
987 if (show) {
988 /* focus the desktop */
989 for (it = focus_order; it; it = g_list_next(it)) {
990 ObClient *c = it->data;
991 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
992 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
993 client_focus(it->data))
994 break;
995 }
996 }
997 else if (!show_only) {
998 ObClient *c;
999
1000 if ((c = focus_fallback(TRUE))) {
1001 /* only do the flicker reducing stuff ahead of time if we are going
1002 to call xsetinputfocus on the window ourselves. otherwise there
1003 is no guarantee the window will actually take focus.. */
1004 if (c->can_focus) {
1005 /* reduce flicker by hiliting now rather than waiting for the
1006 server FocusIn event */
1007 frame_adjust_focus(c->frame, TRUE);
1008 }
1009 }
1010 }
1011
1012 show = !!show; /* make it boolean */
1013 PROP_SET32(RootWindow(ob_display, ob_screen),
1014 net_showing_desktop, cardinal, show);
1015 }
1016
1017 void screen_install_colormap(ObClient *client, gboolean install)
1018 {
1019 if (client == NULL) {
1020 if (install)
1021 XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
1022 else
1023 XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
1024 } else {
1025 xerror_set_ignore(TRUE);
1026 if (install) {
1027 if (client->colormap != None)
1028 XInstallColormap(RrDisplay(ob_rr_inst), client->colormap);
1029 } else
1030 XUninstallColormap(RrDisplay(ob_rr_inst), client->colormap);
1031 xerror_set_ignore(FALSE);
1032 }
1033 }
1034
1035 static inline void
1036 screen_area_add_strut_left(const StrutPartial *s, const Rect *monitor_area,
1037 gint edge, Strut *ret)
1038 {
1039 if (s->left &&
1040 ((s->left_end <= s->left_start) ||
1041 (RECT_TOP(*monitor_area) < s->left_end &&
1042 RECT_BOTTOM(*monitor_area) > s->left_start)))
1043 ret->left = MAX(ret->left, edge);
1044 }
1045
1046 static inline void
1047 screen_area_add_strut_top(const StrutPartial *s, const Rect *monitor_area,
1048 gint edge, Strut *ret)
1049 {
1050 if (s->top &&
1051 ((s->top_end <= s->top_start) ||
1052 (RECT_LEFT(*monitor_area) < s->top_end &&
1053 RECT_RIGHT(*monitor_area) > s->top_start)))
1054 ret->top = MAX(ret->top, edge);
1055 }
1056
1057 static inline void
1058 screen_area_add_strut_right(const StrutPartial *s, const Rect *monitor_area,
1059 gint edge, Strut *ret)
1060 {
1061 if (s->right &&
1062 ((s->right_end <= s->right_start) ||
1063 (RECT_TOP(*monitor_area) < s->right_end &&
1064 RECT_BOTTOM(*monitor_area) > s->right_start)))
1065 ret->right = MAX(ret->right, edge);
1066 }
1067
1068 static inline void
1069 screen_area_add_strut_bottom(const StrutPartial *s, const Rect *monitor_area,
1070 gint edge, Strut *ret)
1071 {
1072 if (s->bottom &&
1073 ((s->bottom_end <= s->bottom_start) ||
1074 (RECT_LEFT(*monitor_area) < s->bottom_end &&
1075 RECT_RIGHT(*monitor_area) > s->bottom_start)))
1076 ret->bottom = MAX(ret->bottom, edge);
1077 }
1078
1079 void screen_update_areas()
1080 {
1081 guint i, x;
1082 gulong *dims;
1083 GList *it;
1084 gint o;
1085
1086 g_free(monitor_area);
1087 extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
1088
1089 if (area) {
1090 for (i = 0; area[i]; ++i)
1091 g_free(area[i]);
1092 g_free(area);
1093 }
1094
1095 area = g_new(Rect*, screen_num_desktops + 2);
1096 for (i = 0; i < screen_num_desktops + 1; ++i)
1097 area[i] = g_new0(Rect, screen_num_monitors + 1);
1098 area[i] = NULL;
1099
1100 dims = g_new(gulong, 4 * screen_num_desktops);
1101
1102 for (i = 0; i < screen_num_desktops + 1; ++i) {
1103 Strut *struts;
1104 gint l, r, t, b;
1105
1106 struts = g_new0(Strut, screen_num_monitors);
1107
1108 /* calc the xinerama areas */
1109 for (x = 0; x < screen_num_monitors; ++x) {
1110 area[i][x] = monitor_area[x];
1111 if (x == 0) {
1112 l = monitor_area[x].x;
1113 t = monitor_area[x].y;
1114 r = monitor_area[x].x + monitor_area[x].width - 1;
1115 b = monitor_area[x].y + monitor_area[x].height - 1;
1116 } else {
1117 l = MIN(l, monitor_area[x].x);
1118 t = MIN(t, monitor_area[x].y);
1119 r = MAX(r, monitor_area[x].x + monitor_area[x].width - 1);
1120 b = MAX(b, monitor_area[x].y + monitor_area[x].height - 1);
1121 }
1122 }
1123 RECT_SET(area[i][x], l, t, r - l + 1, b - t + 1);
1124
1125 /* apply the struts */
1126
1127 /* find the left-most xin heads, i do this in 2 loops :| */
1128 o = area[i][0].x;
1129 for (x = 1; x < screen_num_monitors; ++x)
1130 o = MIN(o, area[i][x].x);
1131
1132 for (x = 0; x < screen_num_monitors; ++x) {
1133 for (it = client_list; it; it = g_list_next(it)) {
1134 ObClient *c = it->data;
1135 screen_area_add_strut_left(&c->strut,
1136 &monitor_area[x],
1137 o + c->strut.left - area[i][x].x,
1138 &struts[x]);
1139 }
1140 screen_area_add_strut_left(&dock_strut,
1141 &monitor_area[x],
1142 o + dock_strut.left - area[i][x].x,
1143 &struts[x]);
1144
1145 area[i][x].x += struts[x].left;
1146 area[i][x].width -= struts[x].left;
1147 }
1148
1149 /* find the top-most xin heads, i do this in 2 loops :| */
1150 o = area[i][0].y;
1151 for (x = 1; x < screen_num_monitors; ++x)
1152 o = MIN(o, area[i][x].y);
1153
1154 for (x = 0; x < screen_num_monitors; ++x) {
1155 for (it = client_list; it; it = g_list_next(it)) {
1156 ObClient *c = it->data;
1157 screen_area_add_strut_top(&c->strut,
1158 &monitor_area[x],
1159 o + c->strut.top - area[i][x].y,
1160 &struts[x]);
1161 }
1162 screen_area_add_strut_top(&dock_strut,
1163 &monitor_area[x],
1164 o + dock_strut.top - area[i][x].y,
1165 &struts[x]);
1166
1167 area[i][x].y += struts[x].top;
1168 area[i][x].height -= struts[x].top;
1169 }
1170
1171 /* find the right-most xin heads, i do this in 2 loops :| */
1172 o = area[i][0].x + area[i][0].width - 1;
1173 for (x = 1; x < screen_num_monitors; ++x)
1174 o = MAX(o, area[i][x].x + area[i][x].width - 1);
1175
1176 for (x = 0; x < screen_num_monitors; ++x) {
1177 for (it = client_list; it; it = g_list_next(it)) {
1178 ObClient *c = it->data;
1179 screen_area_add_strut_right(&c->strut,
1180 &monitor_area[x],
1181 (area[i][x].x +
1182 area[i][x].width - 1) -
1183 (o - c->strut.right),
1184 &struts[x]);
1185 }
1186 screen_area_add_strut_right(&dock_strut,
1187 &monitor_area[x],
1188 (area[i][x].x +
1189 area[i][x].width - 1) -
1190 (o - dock_strut.right),
1191 &struts[x]);
1192
1193 area[i][x].width -= struts[x].right;
1194 }
1195
1196 /* find the bottom-most xin heads, i do this in 2 loops :| */
1197 o = area[i][0].y + area[i][0].height - 1;
1198 for (x = 1; x < screen_num_monitors; ++x)
1199 o = MAX(o, area[i][x].y + area[i][x].height - 1);
1200
1201 for (x = 0; x < screen_num_monitors; ++x) {
1202 for (it = client_list; it; it = g_list_next(it)) {
1203 ObClient *c = it->data;
1204 screen_area_add_strut_bottom(&c->strut,
1205 &monitor_area[x],
1206 (area[i][x].y +
1207 area[i][x].height - 1) - \
1208 (o - c->strut.bottom),
1209 &struts[x]);
1210 }
1211 screen_area_add_strut_bottom(&dock_strut,
1212 &monitor_area[x],
1213 (area[i][x].y +
1214 area[i][x].height - 1) - \
1215 (o - dock_strut.bottom),
1216 &struts[x]);
1217
1218 area[i][x].height -= struts[x].bottom;
1219 }
1220
1221 l = RECT_LEFT(area[i][0]);
1222 t = RECT_TOP(area[i][0]);
1223 r = RECT_RIGHT(area[i][0]);
1224 b = RECT_BOTTOM(area[i][0]);
1225 for (x = 1; x < screen_num_monitors; ++x) {
1226 l = MIN(l, RECT_LEFT(area[i][x]));
1227 t = MIN(l, RECT_TOP(area[i][x]));
1228 r = MAX(r, RECT_RIGHT(area[i][x]));
1229 b = MAX(b, RECT_BOTTOM(area[i][x]));
1230 }
1231 RECT_SET(area[i][screen_num_monitors], l, t,
1232 r - l + 1, b - t + 1);
1233
1234 /* XXX optimize when this is run? */
1235
1236 /* the area has changed, adjust all the maximized
1237 windows */
1238 for (it = client_list; it; it = g_list_next(it)) {
1239 ObClient *c = it->data;
1240 if (i < screen_num_desktops) {
1241 if (c->desktop == i)
1242 client_reconfigure(c);
1243 } else if (c->desktop == DESKTOP_ALL)
1244 client_reconfigure(c);
1245 }
1246 if (i < screen_num_desktops) {
1247 /* don't set these for the 'all desktops' area */
1248 dims[(i * 4) + 0] = area[i][screen_num_monitors].x;
1249 dims[(i * 4) + 1] = area[i][screen_num_monitors].y;
1250 dims[(i * 4) + 2] = area[i][screen_num_monitors].width;
1251 dims[(i * 4) + 3] = area[i][screen_num_monitors].height;
1252 }
1253
1254 g_free(struts);
1255 }
1256
1257 PROP_SETA32(RootWindow(ob_display, ob_screen), net_workarea, cardinal,
1258 dims, 4 * screen_num_desktops);
1259
1260 g_free(dims);
1261 }
1262
1263 Rect *screen_area(guint desktop)
1264 {
1265 return screen_area_monitor(desktop, screen_num_monitors);
1266 }
1267
1268 Rect *screen_area_monitor(guint desktop, guint head)
1269 {
1270 if (head > screen_num_monitors)
1271 return NULL;
1272 if (desktop >= screen_num_desktops) {
1273 if (desktop == DESKTOP_ALL)
1274 return &area[screen_num_desktops][head];
1275 return NULL;
1276 }
1277 return &area[desktop][head];
1278 }
1279
1280 guint screen_find_monitor(Rect *search)
1281 {
1282 guint i;
1283 guint most = 0;
1284 guint mostv = 0;
1285
1286 for (i = 0; i < screen_num_monitors; ++i) {
1287 Rect *area = screen_physical_area_monitor(i);
1288 if (RECT_INTERSECTS_RECT(*area, *search)) {
1289 Rect r;
1290 guint v;
1291
1292 RECT_SET_INTERSECTION(r, *area, *search);
1293 v = r.width * r.height;
1294
1295 if (v > mostv) {
1296 mostv = v;
1297 most = i;
1298 }
1299 }
1300 }
1301 return most;
1302 }
1303
1304 Rect *screen_physical_area()
1305 {
1306 return screen_physical_area_monitor(screen_num_monitors);
1307 }
1308
1309 Rect *screen_physical_area_monitor(guint head)
1310 {
1311 if (head > screen_num_monitors)
1312 return NULL;
1313 return &monitor_area[head];
1314 }
1315
1316 void screen_set_root_cursor()
1317 {
1318 if (sn_app_starting())
1319 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1320 ob_cursor(OB_CURSOR_BUSYPOINTER));
1321 else
1322 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1323 ob_cursor(OB_CURSOR_POINTER));
1324 }
1325
1326 gboolean screen_pointer_pos(gint *x, gint *y)
1327 {
1328 Window w;
1329 gint i;
1330 guint u;
1331 gboolean ret;
1332
1333 ret = !!XQueryPointer(ob_display, RootWindow(ob_display, ob_screen),
1334 &w, &w, x, y, &i, &i, &u);
1335 if (!ret) {
1336 for (i = 0; i < ScreenCount(ob_display); ++i)
1337 if (i != ob_screen)
1338 if (XQueryPointer(ob_display, RootWindow(ob_display, i),
1339 &w, &w, x, y, &i, &i, &u))
1340 break;
1341 }
1342 return ret;
1343 }
my patches for the openbox window manager
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