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make sure math is done in the right order
[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(const gchar *program_name)
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
194 screen_set_root_cursor();
195
196 /* set the OPENBOX_PID hint */
197 pid = getpid();
198 PROP_SET32(RootWindow(ob_display, ob_screen),
199 openbox_pid, cardinal, pid);
200
201 /* set supporting window */
202 PROP_SET32(RootWindow(ob_display, ob_screen),
203 net_supporting_wm_check, window, screen_support_win);
204
205 /* set properties on the supporting window */
206 PROP_SETS(screen_support_win, net_wm_name, program_name);
207 PROP_SET32(screen_support_win, net_supporting_wm_check,
208 window, screen_support_win);
209
210 /* set the _NET_SUPPORTED_ATOMS hint */
211
212 /* this is all the atoms after net_supported in the prop_atoms struct */
213 prop_atoms_start = (Atom*)&prop_atoms;
214 wm_supported_pos = (Atom*)&(prop_atoms.net_supported);
215 num_support = sizeof(prop_atoms) / sizeof(Atom) -
216 (wm_supported_pos - prop_atoms_start) - 1;
217 i = 0;
218 supported = g_new(gulong, num_support);
219 supported[i++] = prop_atoms.net_supporting_wm_check;
220 supported[i++] = prop_atoms.net_wm_full_placement;
221 supported[i++] = prop_atoms.net_current_desktop;
222 supported[i++] = prop_atoms.net_number_of_desktops;
223 supported[i++] = prop_atoms.net_desktop_geometry;
224 supported[i++] = prop_atoms.net_desktop_viewport;
225 supported[i++] = prop_atoms.net_active_window;
226 supported[i++] = prop_atoms.net_workarea;
227 supported[i++] = prop_atoms.net_client_list;
228 supported[i++] = prop_atoms.net_client_list_stacking;
229 supported[i++] = prop_atoms.net_desktop_names;
230 supported[i++] = prop_atoms.net_close_window;
231 supported[i++] = prop_atoms.net_desktop_layout;
232 supported[i++] = prop_atoms.net_showing_desktop;
233 supported[i++] = prop_atoms.net_wm_name;
234 supported[i++] = prop_atoms.net_wm_visible_name;
235 supported[i++] = prop_atoms.net_wm_icon_name;
236 supported[i++] = prop_atoms.net_wm_visible_icon_name;
237 supported[i++] = prop_atoms.net_wm_desktop;
238 supported[i++] = prop_atoms.net_wm_strut;
239 supported[i++] = prop_atoms.net_wm_strut_partial;
240 supported[i++] = prop_atoms.net_wm_icon;
241 supported[i++] = prop_atoms.net_wm_icon_geometry;
242 supported[i++] = prop_atoms.net_wm_window_type;
243 supported[i++] = prop_atoms.net_wm_window_type_desktop;
244 supported[i++] = prop_atoms.net_wm_window_type_dock;
245 supported[i++] = prop_atoms.net_wm_window_type_toolbar;
246 supported[i++] = prop_atoms.net_wm_window_type_menu;
247 supported[i++] = prop_atoms.net_wm_window_type_utility;
248 supported[i++] = prop_atoms.net_wm_window_type_splash;
249 supported[i++] = prop_atoms.net_wm_window_type_dialog;
250 supported[i++] = prop_atoms.net_wm_window_type_normal;
251 supported[i++] = prop_atoms.net_wm_allowed_actions;
252 supported[i++] = prop_atoms.net_wm_action_move;
253 supported[i++] = prop_atoms.net_wm_action_resize;
254 supported[i++] = prop_atoms.net_wm_action_minimize;
255 supported[i++] = prop_atoms.net_wm_action_shade;
256 supported[i++] = prop_atoms.net_wm_action_maximize_horz;
257 supported[i++] = prop_atoms.net_wm_action_maximize_vert;
258 supported[i++] = prop_atoms.net_wm_action_fullscreen;
259 supported[i++] = prop_atoms.net_wm_action_change_desktop;
260 supported[i++] = prop_atoms.net_wm_action_close;
261 supported[i++] = prop_atoms.net_wm_state;
262 supported[i++] = prop_atoms.net_wm_state_modal;
263 supported[i++] = prop_atoms.net_wm_state_maximized_vert;
264 supported[i++] = prop_atoms.net_wm_state_maximized_horz;
265 supported[i++] = prop_atoms.net_wm_state_shaded;
266 supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
267 supported[i++] = prop_atoms.net_wm_state_skip_pager;
268 supported[i++] = prop_atoms.net_wm_state_hidden;
269 supported[i++] = prop_atoms.net_wm_state_fullscreen;
270 supported[i++] = prop_atoms.net_wm_state_above;
271 supported[i++] = prop_atoms.net_wm_state_below;
272 supported[i++] = prop_atoms.net_wm_state_demands_attention;
273 supported[i++] = prop_atoms.net_moveresize_window;
274 supported[i++] = prop_atoms.net_wm_moveresize;
275 supported[i++] = prop_atoms.net_wm_user_time;
276 supported[i++] = prop_atoms.net_wm_user_time_window;
277 supported[i++] = prop_atoms.net_frame_extents;
278 supported[i++] = prop_atoms.net_request_frame_extents;
279 supported[i++] = prop_atoms.net_restack_window;
280 supported[i++] = prop_atoms.net_startup_id;
281 #ifdef SYNC
282 supported[i++] = prop_atoms.net_wm_sync_request;
283 supported[i++] = prop_atoms.net_wm_sync_request_counter;
284 #endif
285
286 supported[i++] = prop_atoms.kde_wm_change_state;
287 supported[i++] = prop_atoms.kde_net_wm_frame_strut;
288 supported[i++] = prop_atoms.kde_net_wm_window_type_override;
289
290 supported[i++] = prop_atoms.openbox_wm_state_undecorated;
291 supported[i++] = prop_atoms.openbox_pid;
292 supported[i++] = prop_atoms.openbox_config;
293 supported[i++] = prop_atoms.openbox_control;
294 g_assert(i == num_support);
295
296 PROP_SETA32(RootWindow(ob_display, ob_screen),
297 net_supported, atom, supported, num_support);
298 g_free(supported);
299
300 return TRUE;
301 }
302
303 void screen_startup(gboolean reconfig)
304 {
305 guint i, numnames;
306 gchar **names;
307 GSList *it;
308 guint32 d;
309
310 desktop_cycle_popup = pager_popup_new(FALSE);
311 pager_popup_height(desktop_cycle_popup, POPUP_HEIGHT);
312
313 if (reconfig)
314 return;
315
316 /* get the initial size */
317 screen_resize();
318
319 /* get the desktop names */
320 numnames = g_slist_length(config_desktops_names);
321 names = g_new(gchar*, numnames + 1);
322 names[numnames] = NULL;
323 for (i = 0, it = config_desktops_names; it; ++i, it = g_slist_next(it))
324 names[i] = g_strdup(it->data);
325
326 /* set the root window property */
327 PROP_SETSS(RootWindow(ob_display, ob_screen), net_desktop_names,names);
328
329 g_strfreev(names);
330
331 /* set the number of desktops */
332 screen_num_desktops = 0;
333 screen_set_num_desktops(config_desktops_num);
334
335 /* start on the current desktop when a wm was already running */
336 if (PROP_GET32(RootWindow(ob_display, ob_screen),
337 net_current_desktop, cardinal, &d) &&
338 d < screen_num_desktops)
339 {
340 screen_set_desktop(d, FALSE);
341 } else if (session_desktop >= 0)
342 screen_set_desktop(MIN((guint)session_desktop,
343 screen_num_desktops), FALSE);
344 else
345 screen_set_desktop(MIN(config_screen_firstdesk,
346 screen_num_desktops) - 1, FALSE);
347
348 /* don't start in showing-desktop mode */
349 screen_showing_desktop = FALSE;
350 PROP_SET32(RootWindow(ob_display, ob_screen),
351 net_showing_desktop, cardinal, screen_showing_desktop);
352
353 screen_update_layout();
354 }
355
356 void screen_shutdown(gboolean reconfig)
357 {
358 Rect **r;
359
360 pager_popup_free(desktop_cycle_popup);
361
362 if (reconfig)
363 return;
364
365 XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
366 NoEventMask);
367
368 /* we're not running here no more! */
369 PROP_ERASE(RootWindow(ob_display, ob_screen), openbox_pid);
370 /* not without us */
371 PROP_ERASE(RootWindow(ob_display, ob_screen), net_supported);
372 /* don't keep this mode */
373 PROP_ERASE(RootWindow(ob_display, ob_screen), net_showing_desktop);
374
375 XDestroyWindow(ob_display, screen_support_win);
376
377 g_strfreev(screen_desktop_names);
378 screen_desktop_names = NULL;
379
380 for (r = area; *r; ++r)
381 g_free(*r);
382 g_free(area);
383 area = NULL;
384 }
385
386 void screen_resize()
387 {
388 static gint oldw = 0, oldh = 0;
389 gint w, h;
390 GList *it;
391 gulong geometry[2];
392
393 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
394 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
395
396 if (w == oldw && h == oldh) return;
397
398 oldw = w; oldh = h;
399
400 /* Set the _NET_DESKTOP_GEOMETRY hint */
401 screen_physical_size.width = geometry[0] = w;
402 screen_physical_size.height = geometry[1] = h;
403 PROP_SETA32(RootWindow(ob_display, ob_screen),
404 net_desktop_geometry, cardinal, geometry, 2);
405
406 if (ob_state() == OB_STATE_STARTING)
407 return;
408
409 screen_update_areas();
410 dock_configure();
411
412 for (it = client_list; it; it = g_list_next(it))
413 client_move_onscreen(it->data, FALSE);
414 }
415
416 void screen_set_num_desktops(guint num)
417 {
418 guint old;
419 gulong *viewport;
420 GList *it;
421
422 g_assert(num > 0);
423
424 if (screen_num_desktops == num) return;
425
426 old = screen_num_desktops;
427 screen_num_desktops = num;
428 PROP_SET32(RootWindow(ob_display, ob_screen),
429 net_number_of_desktops, cardinal, num);
430
431 /* set the viewport hint */
432 viewport = g_new0(gulong, num * 2);
433 PROP_SETA32(RootWindow(ob_display, ob_screen),
434 net_desktop_viewport, cardinal, viewport, num * 2);
435 g_free(viewport);
436
437 /* the number of rows/columns will differ */
438 screen_update_layout();
439
440 /* move windows on desktops that will no longer exist! */
441 for (it = client_list; it; it = g_list_next(it)) {
442 ObClient *c = it->data;
443 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
444 client_set_desktop(c, num - 1, FALSE);
445 }
446
447 /* change our struts/area to match (after moving windows) */
448 screen_update_areas();
449
450 /* may be some unnamed desktops that we need to fill in with names
451 (after updating the areas so the popup can resize) */
452 screen_update_desktop_names();
453
454 /* change our desktop if we're on one that no longer exists! */
455 if (screen_desktop >= screen_num_desktops)
456 screen_set_desktop(num - 1, TRUE);
457 }
458
459 void screen_set_desktop(guint num, gboolean dofocus)
460 {
461 ObClient *c;
462 GList *it;
463 guint old;
464
465 g_assert(num < screen_num_desktops);
466
467 old = screen_desktop;
468 screen_desktop = num;
469 PROP_SET32(RootWindow(ob_display, ob_screen),
470 net_current_desktop, cardinal, num);
471
472 if (old == num) return;
473
474 screen_last_desktop = old;
475
476 ob_debug("Moving to desktop %d\n", num+1);
477
478 if (moveresize_client)
479 client_set_desktop(moveresize_client, num, TRUE);
480
481 /* show windows before hiding the rest to lessen the enter/leave events */
482
483 /* show windows from top to bottom */
484 for (it = stacking_list; it; it = g_list_next(it)) {
485 if (WINDOW_IS_CLIENT(it->data)) {
486 ObClient *c = it->data;
487 client_show(c);
488 }
489 }
490
491 /* have to try focus here because when you leave an empty desktop
492 there is no focus out to watch for
493
494 do this before hiding the windows so if helper windows are coming
495 with us, they don't get hidden
496 */
497 if (dofocus && (c = focus_fallback_target(TRUE, focus_client))) {
498 /* only do the flicker reducing stuff ahead of time if we are going
499 to call xsetinputfocus on the window ourselves. otherwise there is
500 no guarantee the window will actually take focus.. */
501 if (c->can_focus) {
502 /* do this here so that if you switch desktops to a window with
503 helper windows then the helper windows won't flash */
504 client_bring_helper_windows(c);
505 /* reduce flicker by hiliting now rather than waiting for the
506 server FocusIn event */
507 frame_adjust_focus(c->frame, TRUE);
508 }
509 client_focus(c);
510 }
511
512 /* hide windows from bottom to top */
513 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
514 if (WINDOW_IS_CLIENT(it->data)) {
515 ObClient *c = it->data;
516 client_hide(c);
517 }
518 }
519
520 event_ignore_queued_enters();
521
522 if (event_curtime != CurrentTime)
523 screen_desktop_user_time = event_curtime;
524 }
525
526 static void get_row_col(guint d, guint *r, guint *c)
527 {
528 switch (screen_desktop_layout.orientation) {
529 case OB_ORIENTATION_HORZ:
530 switch (screen_desktop_layout.start_corner) {
531 case OB_CORNER_TOPLEFT:
532 *r = d / screen_desktop_layout.columns;
533 *c = d % screen_desktop_layout.columns;
534 break;
535 case OB_CORNER_BOTTOMLEFT:
536 *r = screen_desktop_layout.rows - 1 -
537 d / screen_desktop_layout.columns;
538 *c = d % screen_desktop_layout.columns;
539 break;
540 case OB_CORNER_TOPRIGHT:
541 *r = d / screen_desktop_layout.columns;
542 *c = screen_desktop_layout.columns - 1 -
543 d % screen_desktop_layout.columns;
544 break;
545 case OB_CORNER_BOTTOMRIGHT:
546 *r = screen_desktop_layout.rows - 1 -
547 d / screen_desktop_layout.columns;
548 *c = screen_desktop_layout.columns - 1 -
549 d % screen_desktop_layout.columns;
550 break;
551 }
552 break;
553 case OB_ORIENTATION_VERT:
554 switch (screen_desktop_layout.start_corner) {
555 case OB_CORNER_TOPLEFT:
556 *r = d % screen_desktop_layout.rows;
557 *c = d / screen_desktop_layout.rows;
558 break;
559 case OB_CORNER_BOTTOMLEFT:
560 *r = screen_desktop_layout.rows - 1 -
561 d % screen_desktop_layout.rows;
562 *c = d / screen_desktop_layout.rows;
563 break;
564 case OB_CORNER_TOPRIGHT:
565 *r = d % screen_desktop_layout.rows;
566 *c = screen_desktop_layout.columns - 1 -
567 d / screen_desktop_layout.rows;
568 break;
569 case OB_CORNER_BOTTOMRIGHT:
570 *r = screen_desktop_layout.rows - 1 -
571 d % screen_desktop_layout.rows;
572 *c = screen_desktop_layout.columns - 1 -
573 d / screen_desktop_layout.rows;
574 break;
575 }
576 break;
577 }
578 }
579
580 static guint translate_row_col(guint r, guint c)
581 {
582 switch (screen_desktop_layout.orientation) {
583 case OB_ORIENTATION_HORZ:
584 switch (screen_desktop_layout.start_corner) {
585 case OB_CORNER_TOPLEFT:
586 return r % screen_desktop_layout.rows *
587 screen_desktop_layout.columns +
588 c % screen_desktop_layout.columns;
589 case OB_CORNER_BOTTOMLEFT:
590 return (screen_desktop_layout.rows - 1 -
591 r % screen_desktop_layout.rows) *
592 screen_desktop_layout.columns +
593 c % screen_desktop_layout.columns;
594 case OB_CORNER_TOPRIGHT:
595 return r % screen_desktop_layout.rows *
596 screen_desktop_layout.columns +
597 (screen_desktop_layout.columns - 1 -
598 c % screen_desktop_layout.columns);
599 case OB_CORNER_BOTTOMRIGHT:
600 return (screen_desktop_layout.rows - 1 -
601 r % screen_desktop_layout.rows) *
602 screen_desktop_layout.columns +
603 (screen_desktop_layout.columns - 1 -
604 c % screen_desktop_layout.columns);
605 }
606 case OB_ORIENTATION_VERT:
607 switch (screen_desktop_layout.start_corner) {
608 case OB_CORNER_TOPLEFT:
609 return c % screen_desktop_layout.columns *
610 screen_desktop_layout.rows +
611 r % screen_desktop_layout.rows;
612 case OB_CORNER_BOTTOMLEFT:
613 return c % screen_desktop_layout.columns *
614 screen_desktop_layout.rows +
615 (screen_desktop_layout.rows - 1 -
616 r % screen_desktop_layout.rows);
617 case OB_CORNER_TOPRIGHT:
618 return (screen_desktop_layout.columns - 1 -
619 c % screen_desktop_layout.columns) *
620 screen_desktop_layout.rows +
621 r % screen_desktop_layout.rows;
622 case OB_CORNER_BOTTOMRIGHT:
623 return (screen_desktop_layout.columns - 1 -
624 c % screen_desktop_layout.columns) *
625 screen_desktop_layout.rows +
626 (screen_desktop_layout.rows - 1 -
627 r % screen_desktop_layout.rows);
628 }
629 }
630 g_assert_not_reached();
631 return 0;
632 }
633
634 void screen_desktop_popup(guint d, gboolean show)
635 {
636 Rect *a;
637
638 if (!show) {
639 pager_popup_hide(desktop_cycle_popup);
640 } else {
641 a = screen_physical_area_monitor(0);
642 pager_popup_position(desktop_cycle_popup, CenterGravity,
643 a->x + a->width / 2, a->y + a->height / 2);
644 pager_popup_icon_size_multiplier(desktop_cycle_popup,
645 (screen_desktop_layout.columns /
646 screen_desktop_layout.rows) / 2,
647 (screen_desktop_layout.rows/
648 screen_desktop_layout.columns) / 2);
649 pager_popup_max_width(desktop_cycle_popup,
650 MAX(a->width/3, POPUP_WIDTH));
651 pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
652 }
653 }
654
655 guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
656 gboolean dialog, gboolean done, gboolean cancel)
657 {
658 guint r, c;
659 static guint d = (guint)-1;
660 guint ret;
661
662 if (d == (guint)-1)
663 d = screen_desktop;
664
665 if ((cancel || done) && dialog)
666 goto show_cycle_dialog;
667
668 get_row_col(d, &r, &c);
669
670 if (linear) {
671 switch (dir) {
672 case OB_DIRECTION_EAST:
673 if (d < screen_num_desktops - 1)
674 ++d;
675 else if (wrap)
676 d = 0;
677 break;
678 case OB_DIRECTION_WEST:
679 if (d > 0)
680 --d;
681 else if (wrap)
682 d = screen_num_desktops - 1;
683 break;
684 default:
685 assert(0);
686 return screen_desktop;
687 }
688 } else {
689 switch (dir) {
690 case OB_DIRECTION_EAST:
691 ++c;
692 if (c >= screen_desktop_layout.columns) {
693 if (wrap) {
694 c = 0;
695 } else {
696 d = screen_desktop;
697 goto show_cycle_dialog;
698 }
699 }
700 d = translate_row_col(r, c);
701 if (d >= screen_num_desktops) {
702 if (wrap) {
703 ++c;
704 } else {
705 d = screen_desktop;
706 goto show_cycle_dialog;
707 }
708 }
709 break;
710 case OB_DIRECTION_WEST:
711 --c;
712 if (c >= screen_desktop_layout.columns) {
713 if (wrap) {
714 c = screen_desktop_layout.columns - 1;
715 } else {
716 d = screen_desktop;
717 goto show_cycle_dialog;
718 }
719 }
720 d = translate_row_col(r, c);
721 if (d >= screen_num_desktops) {
722 if (wrap) {
723 --c;
724 } else {
725 d = screen_desktop;
726 goto show_cycle_dialog;
727 }
728 }
729 break;
730 case OB_DIRECTION_SOUTH:
731 ++r;
732 if (r >= screen_desktop_layout.rows) {
733 if (wrap) {
734 r = 0;
735 } else {
736 d = screen_desktop;
737 goto show_cycle_dialog;
738 }
739 }
740 d = translate_row_col(r, c);
741 if (d >= screen_num_desktops) {
742 if (wrap) {
743 ++r;
744 } else {
745 d = screen_desktop;
746 goto show_cycle_dialog;
747 }
748 }
749 break;
750 case OB_DIRECTION_NORTH:
751 --r;
752 if (r >= screen_desktop_layout.rows) {
753 if (wrap) {
754 r = screen_desktop_layout.rows - 1;
755 } else {
756 d = screen_desktop;
757 goto show_cycle_dialog;
758 }
759 }
760 d = translate_row_col(r, c);
761 if (d >= screen_num_desktops) {
762 if (wrap) {
763 --r;
764 } else {
765 d = screen_desktop;
766 goto show_cycle_dialog;
767 }
768 }
769 break;
770 default:
771 assert(0);
772 return d = screen_desktop;
773 }
774
775 d = translate_row_col(r, c);
776 }
777
778 show_cycle_dialog:
779 if (dialog && !cancel && !done) {
780 screen_desktop_popup(d, TRUE);
781 } else
782 screen_desktop_popup(0, FALSE);
783 ret = d;
784
785 if (!dialog || cancel || done)
786 d = (guint)-1;
787
788 return ret;
789 }
790
791 void screen_update_layout()
792 {
793 ObOrientation orient;
794 ObCorner corner;
795 guint rows;
796 guint cols;
797 guint32 *data;
798 guint num;
799 gboolean valid = FALSE;
800
801 if (PROP_GETA32(RootWindow(ob_display, ob_screen),
802 net_desktop_layout, cardinal, &data, &num)) {
803 if (num == 3 || num == 4) {
804
805 if (data[0] == prop_atoms.net_wm_orientation_vert)
806 orient = OB_ORIENTATION_VERT;
807 else if (data[0] == prop_atoms.net_wm_orientation_horz)
808 orient = OB_ORIENTATION_HORZ;
809 else
810 goto screen_update_layout_bail;
811
812 if (num < 4)
813 corner = OB_CORNER_TOPLEFT;
814 else {
815 if (data[3] == prop_atoms.net_wm_topleft)
816 corner = OB_CORNER_TOPLEFT;
817 else if (data[3] == prop_atoms.net_wm_topright)
818 corner = OB_CORNER_TOPRIGHT;
819 else if (data[3] == prop_atoms.net_wm_bottomright)
820 corner = OB_CORNER_BOTTOMRIGHT;
821 else if (data[3] == prop_atoms.net_wm_bottomleft)
822 corner = OB_CORNER_BOTTOMLEFT;
823 else
824 goto screen_update_layout_bail;
825 }
826
827 cols = data[1];
828 rows = data[2];
829
830 /* fill in a zero rows/columns */
831 if ((cols == 0 && rows == 0)) { /* both 0's is bad data.. */
832 goto screen_update_layout_bail;
833 } else {
834 if (cols == 0) {
835 cols = screen_num_desktops / rows;
836 if (rows * cols < screen_num_desktops)
837 cols++;
838 if (rows * cols >= screen_num_desktops + cols)
839 rows--;
840 } else if (rows == 0) {
841 rows = screen_num_desktops / cols;
842 if (cols * rows < screen_num_desktops)
843 rows++;
844 if (cols * rows >= screen_num_desktops + rows)
845 cols--;
846 }
847 }
848
849 /* bounds checking */
850 if (orient == OB_ORIENTATION_HORZ) {
851 cols = MIN(screen_num_desktops, cols);
852 rows = MIN(rows, (screen_num_desktops + cols - 1) / cols);
853 cols = screen_num_desktops / rows +
854 !!(screen_num_desktops % rows);
855 } else {
856 rows = MIN(screen_num_desktops, rows);
857 cols = MIN(cols, (screen_num_desktops + rows - 1) / rows);
858 rows = screen_num_desktops / cols +
859 !!(screen_num_desktops % cols);
860 }
861
862 valid = TRUE;
863 }
864 screen_update_layout_bail:
865 g_free(data);
866 }
867
868 if (!valid) {
869 /* defaults */
870 orient = OB_ORIENTATION_HORZ;
871 corner = OB_CORNER_TOPLEFT;
872 rows = 1;
873 cols = screen_num_desktops;
874 }
875
876 screen_desktop_layout.orientation = orient;
877 screen_desktop_layout.start_corner = corner;
878 screen_desktop_layout.rows = rows;
879 screen_desktop_layout.columns = cols;
880 }
881
882 void screen_update_desktop_names()
883 {
884 guint i;
885
886 /* empty the array */
887 g_strfreev(screen_desktop_names);
888 screen_desktop_names = NULL;
889
890 if (PROP_GETSS(RootWindow(ob_display, ob_screen),
891 net_desktop_names, utf8, &screen_desktop_names))
892 for (i = 0; screen_desktop_names[i] && i < screen_num_desktops; ++i);
893 else
894 i = 0;
895 if (i < screen_num_desktops) {
896 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
897 screen_num_desktops + 1);
898 screen_desktop_names[screen_num_desktops] = NULL;
899 for (; i < screen_num_desktops; ++i)
900 screen_desktop_names[i] = g_strdup_printf("desktop %i", i + 1);
901 }
902
903 /* resize the pager for these names */
904 pager_popup_text_width_to_strings(desktop_cycle_popup,
905 screen_desktop_names,
906 screen_num_desktops);
907 }
908
909 void screen_show_desktop(gboolean show, gboolean restore_focus)
910 {
911 GList *it;
912
913 if (show == screen_showing_desktop) return; /* no change */
914
915 screen_showing_desktop = show;
916
917 if (show) {
918 /* bottom to top */
919 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
920 if (WINDOW_IS_CLIENT(it->data)) {
921 ObClient *client = it->data;
922 client_showhide(client);
923 }
924 }
925 } else {
926 /* top to bottom */
927 for (it = stacking_list; it; it = g_list_next(it)) {
928 if (WINDOW_IS_CLIENT(it->data)) {
929 ObClient *client = it->data;
930 client_showhide(client);
931 }
932 }
933 }
934
935 if (show) {
936 /* focus desktop */
937 for (it = focus_order; it; it = g_list_next(it)) {
938 ObClient *c = it->data;
939 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
940 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
941 client_focus(it->data))
942 break;
943 }
944 } else if (restore_focus) {
945 ObClient *c;
946
947 /* use NULL for the "old" argument because the desktop was focused
948 and we don't want to fallback to the desktop by default */
949 if ((c = focus_fallback_target(TRUE, NULL)))
950 client_focus(c);
951 }
952
953 show = !!show; /* make it boolean */
954 PROP_SET32(RootWindow(ob_display, ob_screen),
955 net_showing_desktop, cardinal, show);
956 }
957
958 void screen_install_colormap(ObClient *client, gboolean install)
959 {
960 if (client == NULL) {
961 if (install)
962 XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
963 else
964 XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
965 } else {
966 xerror_set_ignore(TRUE);
967 if (install) {
968 if (client->colormap != None)
969 XInstallColormap(RrDisplay(ob_rr_inst), client->colormap);
970 } else
971 XUninstallColormap(RrDisplay(ob_rr_inst), client->colormap);
972 xerror_set_ignore(FALSE);
973 }
974 }
975
976 static inline void
977 screen_area_add_strut_left(const StrutPartial *s, const Rect *monitor_area,
978 gint edge, Strut *ret)
979 {
980 if (s->left &&
981 ((s->left_end <= s->left_start) ||
982 (RECT_TOP(*monitor_area) < s->left_end &&
983 RECT_BOTTOM(*monitor_area) > s->left_start)))
984 ret->left = MAX(ret->left, edge);
985 }
986
987 static inline void
988 screen_area_add_strut_top(const StrutPartial *s, const Rect *monitor_area,
989 gint edge, Strut *ret)
990 {
991 if (s->top &&
992 ((s->top_end <= s->top_start) ||
993 (RECT_LEFT(*monitor_area) < s->top_end &&
994 RECT_RIGHT(*monitor_area) > s->top_start)))
995 ret->top = MAX(ret->top, edge);
996 }
997
998 static inline void
999 screen_area_add_strut_right(const StrutPartial *s, const Rect *monitor_area,
1000 gint edge, Strut *ret)
1001 {
1002 if (s->right &&
1003 ((s->right_end <= s->right_start) ||
1004 (RECT_TOP(*monitor_area) < s->right_end &&
1005 RECT_BOTTOM(*monitor_area) > s->right_start)))
1006 ret->right = MAX(ret->right, edge);
1007 }
1008
1009 static inline void
1010 screen_area_add_strut_bottom(const StrutPartial *s, const Rect *monitor_area,
1011 gint edge, Strut *ret)
1012 {
1013 if (s->bottom &&
1014 ((s->bottom_end <= s->bottom_start) ||
1015 (RECT_LEFT(*monitor_area) < s->bottom_end &&
1016 RECT_RIGHT(*monitor_area) > s->bottom_start)))
1017 ret->bottom = MAX(ret->bottom, edge);
1018 }
1019
1020 void screen_update_areas()
1021 {
1022 guint i, x;
1023 gulong *dims;
1024 GList *it;
1025 gint o;
1026
1027 g_free(monitor_area);
1028 extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
1029
1030 if (area) {
1031 for (i = 0; area[i]; ++i)
1032 g_free(area[i]);
1033 g_free(area);
1034 }
1035
1036 area = g_new(Rect*, screen_num_desktops + 2);
1037 for (i = 0; i < screen_num_desktops + 1; ++i)
1038 area[i] = g_new0(Rect, screen_num_monitors + 1);
1039 area[i] = NULL;
1040
1041 dims = g_new(gulong, 4 * screen_num_desktops);
1042
1043 for (i = 0; i < screen_num_desktops + 1; ++i) {
1044 Strut *struts;
1045 gint l, r, t, b;
1046
1047 struts = g_new0(Strut, screen_num_monitors);
1048
1049 /* calc the xinerama areas */
1050 for (x = 0; x < screen_num_monitors; ++x) {
1051 area[i][x] = monitor_area[x];
1052 if (x == 0) {
1053 l = monitor_area[x].x;
1054 t = monitor_area[x].y;
1055 r = monitor_area[x].x + monitor_area[x].width - 1;
1056 b = monitor_area[x].y + monitor_area[x].height - 1;
1057 } else {
1058 l = MIN(l, monitor_area[x].x);
1059 t = MIN(t, monitor_area[x].y);
1060 r = MAX(r, monitor_area[x].x + monitor_area[x].width - 1);
1061 b = MAX(b, monitor_area[x].y + monitor_area[x].height - 1);
1062 }
1063 }
1064 RECT_SET(area[i][x], l, t, r - l + 1, b - t + 1);
1065
1066 /* apply the struts */
1067
1068 /* find the left-most xin heads, i do this in 2 loops :| */
1069 o = area[i][0].x;
1070 for (x = 1; x < screen_num_monitors; ++x)
1071 o = MIN(o, area[i][x].x);
1072
1073 for (x = 0; x < screen_num_monitors; ++x) {
1074 for (it = client_list; it; it = g_list_next(it)) {
1075 ObClient *c = it->data;
1076 screen_area_add_strut_left(&c->strut,
1077 &monitor_area[x],
1078 o + c->strut.left - area[i][x].x,
1079 &struts[x]);
1080 }
1081 screen_area_add_strut_left(&dock_strut,
1082 &monitor_area[x],
1083 o + dock_strut.left - area[i][x].x,
1084 &struts[x]);
1085
1086 area[i][x].x += struts[x].left;
1087 area[i][x].width -= struts[x].left;
1088 }
1089
1090 /* find the top-most xin heads, i do this in 2 loops :| */
1091 o = area[i][0].y;
1092 for (x = 1; x < screen_num_monitors; ++x)
1093 o = MIN(o, area[i][x].y);
1094
1095 for (x = 0; x < screen_num_monitors; ++x) {
1096 for (it = client_list; it; it = g_list_next(it)) {
1097 ObClient *c = it->data;
1098 screen_area_add_strut_top(&c->strut,
1099 &monitor_area[x],
1100 o + c->strut.top - area[i][x].y,
1101 &struts[x]);
1102 }
1103 screen_area_add_strut_top(&dock_strut,
1104 &monitor_area[x],
1105 o + dock_strut.top - area[i][x].y,
1106 &struts[x]);
1107
1108 area[i][x].y += struts[x].top;
1109 area[i][x].height -= struts[x].top;
1110 }
1111
1112 /* find the right-most xin heads, i do this in 2 loops :| */
1113 o = area[i][0].x + area[i][0].width - 1;
1114 for (x = 1; x < screen_num_monitors; ++x)
1115 o = MAX(o, area[i][x].x + area[i][x].width - 1);
1116
1117 for (x = 0; x < screen_num_monitors; ++x) {
1118 for (it = client_list; it; it = g_list_next(it)) {
1119 ObClient *c = it->data;
1120 screen_area_add_strut_right(&c->strut,
1121 &monitor_area[x],
1122 (area[i][x].x +
1123 area[i][x].width - 1) -
1124 (o - c->strut.right),
1125 &struts[x]);
1126 }
1127 screen_area_add_strut_right(&dock_strut,
1128 &monitor_area[x],
1129 (area[i][x].x +
1130 area[i][x].width - 1) -
1131 (o - dock_strut.right),
1132 &struts[x]);
1133
1134 area[i][x].width -= struts[x].right;
1135 }
1136
1137 /* find the bottom-most xin heads, i do this in 2 loops :| */
1138 o = area[i][0].y + area[i][0].height - 1;
1139 for (x = 1; x < screen_num_monitors; ++x)
1140 o = MAX(o, area[i][x].y + area[i][x].height - 1);
1141
1142 for (x = 0; x < screen_num_monitors; ++x) {
1143 for (it = client_list; it; it = g_list_next(it)) {
1144 ObClient *c = it->data;
1145 screen_area_add_strut_bottom(&c->strut,
1146 &monitor_area[x],
1147 (area[i][x].y +
1148 area[i][x].height - 1) - \
1149 (o - c->strut.bottom),
1150 &struts[x]);
1151 }
1152 screen_area_add_strut_bottom(&dock_strut,
1153 &monitor_area[x],
1154 (area[i][x].y +
1155 area[i][x].height - 1) - \
1156 (o - dock_strut.bottom),
1157 &struts[x]);
1158
1159 area[i][x].height -= struts[x].bottom;
1160 }
1161
1162 l = RECT_LEFT(area[i][0]);
1163 t = RECT_TOP(area[i][0]);
1164 r = RECT_RIGHT(area[i][0]);
1165 b = RECT_BOTTOM(area[i][0]);
1166 for (x = 1; x < screen_num_monitors; ++x) {
1167 l = MIN(l, RECT_LEFT(area[i][x]));
1168 t = MIN(l, RECT_TOP(area[i][x]));
1169 r = MAX(r, RECT_RIGHT(area[i][x]));
1170 b = MAX(b, RECT_BOTTOM(area[i][x]));
1171 }
1172 RECT_SET(area[i][screen_num_monitors], l, t,
1173 r - l + 1, b - t + 1);
1174
1175 /* XXX optimize when this is run? */
1176
1177 /* the area has changed, adjust all the maximized
1178 windows */
1179 for (it = client_list; it; it = g_list_next(it)) {
1180 ObClient *c = it->data;
1181 if (i < screen_num_desktops) {
1182 if (c->desktop == i)
1183 client_reconfigure(c);
1184 } else if (c->desktop == DESKTOP_ALL)
1185 client_reconfigure(c);
1186 }
1187 if (i < screen_num_desktops) {
1188 /* don't set these for the 'all desktops' area */
1189 dims[(i * 4) + 0] = area[i][screen_num_monitors].x;
1190 dims[(i * 4) + 1] = area[i][screen_num_monitors].y;
1191 dims[(i * 4) + 2] = area[i][screen_num_monitors].width;
1192 dims[(i * 4) + 3] = area[i][screen_num_monitors].height;
1193 }
1194
1195 g_free(struts);
1196 }
1197
1198 PROP_SETA32(RootWindow(ob_display, ob_screen), net_workarea, cardinal,
1199 dims, 4 * screen_num_desktops);
1200
1201 g_free(dims);
1202 }
1203
1204 Rect *screen_area(guint desktop)
1205 {
1206 return screen_area_monitor(desktop, screen_num_monitors);
1207 }
1208
1209 Rect *screen_area_monitor(guint desktop, guint head)
1210 {
1211 if (head > screen_num_monitors)
1212 return NULL;
1213 if (desktop >= screen_num_desktops) {
1214 if (desktop == DESKTOP_ALL)
1215 return &area[screen_num_desktops][head];
1216 return NULL;
1217 }
1218 return &area[desktop][head];
1219 }
1220
1221 guint screen_find_monitor(Rect *search)
1222 {
1223 guint i;
1224 guint most = 0;
1225 guint mostv = 0;
1226
1227 for (i = 0; i < screen_num_monitors; ++i) {
1228 Rect *area = screen_physical_area_monitor(i);
1229 if (RECT_INTERSECTS_RECT(*area, *search)) {
1230 Rect r;
1231 guint v;
1232
1233 RECT_SET_INTERSECTION(r, *area, *search);
1234 v = r.width * r.height;
1235
1236 if (v > mostv) {
1237 mostv = v;
1238 most = i;
1239 }
1240 }
1241 }
1242 return most;
1243 }
1244
1245 Rect *screen_physical_area()
1246 {
1247 return screen_physical_area_monitor(screen_num_monitors);
1248 }
1249
1250 Rect *screen_physical_area_monitor(guint head)
1251 {
1252 if (head > screen_num_monitors)
1253 return NULL;
1254 return &monitor_area[head];
1255 }
1256
1257 void screen_set_root_cursor()
1258 {
1259 if (sn_app_starting())
1260 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1261 ob_cursor(OB_CURSOR_BUSY));
1262 else
1263 XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),
1264 ob_cursor(OB_CURSOR_POINTER));
1265 }
1266
1267 gboolean screen_pointer_pos(gint *x, gint *y)
1268 {
1269 Window w;
1270 gint i;
1271 guint u;
1272 gboolean ret;
1273
1274 ret = !!XQueryPointer(ob_display, RootWindow(ob_display, ob_screen),
1275 &w, &w, x, y, &i, &i, &u);
1276 if (!ret) {
1277 for (i = 0; i < ScreenCount(ob_display); ++i)
1278 if (i != ob_screen)
1279 if (XQueryPointer(ob_display, RootWindow(ob_display, i),
1280 &w, &w, x, y, &i, &i, &u))
1281 break;
1282 }
1283 return ret;
1284 }
my patches for the openbox window manager
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