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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 "grab.h"
24 #include "startupnotify.h"
25 #include "moveresize.h"
26 #include "config.h"
27 #include "screen.h"
28 #include "client.h"
29 #include "session.h"
30 #include "frame.h"
31 #include "event.h"
32 #include "focus.h"
33 #include "focus_cycle.h"
34 #include "popup.h"
35 #include "version.h"
36 #include "obrender/render.h"
37 #include "gettext.h"
38 #include "obt/display.h"
39 #include "obt/xqueue.h"
40 #include "obt/prop.h"
41
42 #include <X11/Xlib.h>
43 #ifdef HAVE_UNISTD_H
44 # include <sys/types.h>
45 # include <unistd.h>
46 #endif
47 #include <assert.h>
48
49 /*! The event mask to grab on the root window */
50 #define ROOT_EVENTMASK (StructureNotifyMask | PropertyChangeMask | \
51 EnterWindowMask | LeaveWindowMask | \
52 SubstructureRedirectMask | FocusChangeMask | \
53 ButtonPressMask | ButtonReleaseMask)
54
55 static gboolean screen_validate_layout(ObDesktopLayout *l);
56 static gboolean replace_wm(void);
57 static void screen_tell_ksplash(void);
58 static void screen_fallback_focus(void);
59
60 guint screen_num_desktops;
61 guint screen_num_monitors;
62 guint screen_desktop;
63 guint screen_last_desktop;
64 gboolean screen_showing_desktop;
65 ObDesktopLayout screen_desktop_layout;
66 gchar **screen_desktop_names;
67 Window screen_support_win;
68 Time screen_desktop_user_time = CurrentTime;
69
70 static Size screen_physical_size;
71 static guint screen_old_desktop;
72 static gboolean screen_desktop_timeout = TRUE;
73 static guint screen_desktop_timer = 0;
74 /*! An array of desktops, holding an array of areas per monitor */
75 static Rect *monitor_area = NULL;
76 /*! An array of desktops, holding an array of struts */
77 static GSList *struts_top = NULL;
78 static GSList *struts_left = NULL;
79 static GSList *struts_right = NULL;
80 static GSList *struts_bottom = NULL;
81
82 static ObPagerPopup *desktop_popup;
83 static guint desktop_popup_timer = 0;
84 static gboolean desktop_popup_perm;
85
86 /*! The number of microseconds that you need to be on a desktop before it will
87 replace the remembered "last desktop" */
88 #define REMEMBER_LAST_DESKTOP_TIME 750
89
90 static gboolean replace_wm(void)
91 {
92 gchar *wm_sn;
93 Atom wm_sn_atom;
94 Window current_wm_sn_owner;
95 Time timestamp;
96
97 wm_sn = g_strdup_printf("WM_S%d", ob_screen);
98 wm_sn_atom = XInternAtom(obt_display, wm_sn, FALSE);
99 g_free(wm_sn);
100
101 current_wm_sn_owner = XGetSelectionOwner(obt_display, wm_sn_atom);
102 if (current_wm_sn_owner == screen_support_win)
103 current_wm_sn_owner = None;
104 if (current_wm_sn_owner) {
105 if (!ob_replace_wm) {
106 g_message(_("A window manager is already running on screen %d"),
107 ob_screen);
108 return FALSE;
109 }
110 obt_display_ignore_errors(TRUE);
111
112 /* We want to find out when the current selection owner dies */
113 XSelectInput(obt_display, current_wm_sn_owner, StructureNotifyMask);
114 XSync(obt_display, FALSE);
115
116 obt_display_ignore_errors(FALSE);
117 if (obt_display_error_occured)
118 current_wm_sn_owner = None;
119 }
120
121 timestamp = event_time();
122
123 XSetSelectionOwner(obt_display, wm_sn_atom, screen_support_win,
124 timestamp);
125
126 if (XGetSelectionOwner(obt_display, wm_sn_atom) != screen_support_win) {
127 g_message(_("Could not acquire window manager selection on screen %d"),
128 ob_screen);
129 return FALSE;
130 }
131
132 /* Wait for old window manager to go away */
133 if (current_wm_sn_owner) {
134 gulong wait = 0;
135 const gulong timeout = G_USEC_PER_SEC * 15; /* wait for 15s max */
136 ObtXQueueWindowType wt;
137
138 wt.window = current_wm_sn_owner;
139 wt.type = DestroyNotify;
140
141 while (wait < timeout) {
142 /* Checks the local queue and incoming events for this event */
143 if (xqueue_exists_local(xqueue_match_window_type, &wt))
144 break;
145 g_usleep(G_USEC_PER_SEC / 10);
146 wait += G_USEC_PER_SEC / 10;
147 }
148
149 if (wait >= timeout) {
150 g_message(_("The WM on screen %d is not exiting"), ob_screen);
151 return FALSE;
152 }
153 }
154
155 /* Send client message indicating that we are now the WM */
156 obt_prop_message(ob_screen, obt_root(ob_screen), OBT_PROP_ATOM(MANAGER),
157 timestamp, wm_sn_atom, screen_support_win, 0, 0,
158 SubstructureNotifyMask);
159
160 return TRUE;
161 }
162
163 gboolean screen_annex(void)
164 {
165 XSetWindowAttributes attrib;
166 pid_t pid;
167 gint i, num_support;
168 gulong *supported;
169
170 /* create the netwm support window */
171 attrib.override_redirect = TRUE;
172 attrib.event_mask = PropertyChangeMask;
173 screen_support_win = XCreateWindow(obt_display, obt_root(ob_screen),
174 -100, -100, 1, 1, 0,
175 CopyFromParent, InputOutput,
176 CopyFromParent,
177 CWEventMask | CWOverrideRedirect,
178 &attrib);
179 XMapWindow(obt_display, screen_support_win);
180 XLowerWindow(obt_display, screen_support_win);
181
182 if (!replace_wm()) {
183 XDestroyWindow(obt_display, screen_support_win);
184 return FALSE;
185 }
186
187 obt_display_ignore_errors(TRUE);
188 XSelectInput(obt_display, obt_root(ob_screen), ROOT_EVENTMASK);
189 obt_display_ignore_errors(FALSE);
190 if (obt_display_error_occured) {
191 g_message(_("A window manager is already running on screen %d"),
192 ob_screen);
193
194 XDestroyWindow(obt_display, screen_support_win);
195 return FALSE;
196 }
197
198 screen_set_root_cursor();
199
200 /* set the OPENBOX_PID hint */
201 pid = getpid();
202 OBT_PROP_SET32(obt_root(ob_screen), OPENBOX_PID, CARDINAL, pid);
203
204 /* set supporting window */
205 OBT_PROP_SET32(obt_root(ob_screen),
206 NET_SUPPORTING_WM_CHECK, WINDOW, screen_support_win);
207
208 /* set properties on the supporting window */
209 OBT_PROP_SETS(screen_support_win, NET_WM_NAME, utf8, "Openbox");
210 OBT_PROP_SET32(screen_support_win, NET_SUPPORTING_WM_CHECK,
211 WINDOW, screen_support_win);
212
213 /* set the _NET_SUPPORTED_ATOMS hint */
214
215 /* this is all the atoms after NET_SUPPORTED in the ObtPropAtoms enum */
216 num_support = OBT_PROP_NUM_ATOMS - OBT_PROP_NET_SUPPORTED - 1;
217 i = 0;
218 supported = g_new(gulong, num_support);
219 supported[i++] = OBT_PROP_ATOM(NET_SUPPORTING_WM_CHECK);
220 supported[i++] = OBT_PROP_ATOM(NET_WM_FULL_PLACEMENT);
221 supported[i++] = OBT_PROP_ATOM(NET_CURRENT_DESKTOP);
222 supported[i++] = OBT_PROP_ATOM(NET_NUMBER_OF_DESKTOPS);
223 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_GEOMETRY);
224 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_VIEWPORT);
225 supported[i++] = OBT_PROP_ATOM(NET_ACTIVE_WINDOW);
226 supported[i++] = OBT_PROP_ATOM(NET_WORKAREA);
227 supported[i++] = OBT_PROP_ATOM(NET_CLIENT_LIST);
228 supported[i++] = OBT_PROP_ATOM(NET_CLIENT_LIST_STACKING);
229 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_NAMES);
230 supported[i++] = OBT_PROP_ATOM(NET_CLOSE_WINDOW);
231 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_LAYOUT);
232 supported[i++] = OBT_PROP_ATOM(NET_SHOWING_DESKTOP);
233 supported[i++] = OBT_PROP_ATOM(NET_WM_NAME);
234 supported[i++] = OBT_PROP_ATOM(NET_WM_VISIBLE_NAME);
235 supported[i++] = OBT_PROP_ATOM(NET_WM_ICON_NAME);
236 supported[i++] = OBT_PROP_ATOM(NET_WM_VISIBLE_ICON_NAME);
237 supported[i++] = OBT_PROP_ATOM(NET_WM_DESKTOP);
238 supported[i++] = OBT_PROP_ATOM(NET_WM_STRUT);
239 supported[i++] = OBT_PROP_ATOM(NET_WM_STRUT_PARTIAL);
240 supported[i++] = OBT_PROP_ATOM(NET_WM_ICON);
241 supported[i++] = OBT_PROP_ATOM(NET_WM_ICON_GEOMETRY);
242 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE);
243 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DESKTOP);
244 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DOCK);
245 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_TOOLBAR);
246 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_MENU);
247 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_UTILITY);
248 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_SPLASH);
249 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG);
250 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_NORMAL);
251 supported[i++] = OBT_PROP_ATOM(NET_WM_ALLOWED_ACTIONS);
252 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MOVE);
253 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_RESIZE);
254 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MINIMIZE);
255 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_SHADE);
256 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_HORZ);
257 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_VERT);
258 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_FULLSCREEN);
259 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_CHANGE_DESKTOP);
260 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_CLOSE);
261 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_ABOVE);
262 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_BELOW);
263 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE);
264 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_MODAL);
265 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT);
266 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ);
267 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_SHADED);
268 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR);
269 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER);
270 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_HIDDEN);
271 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN);
272 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_ABOVE);
273 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_BELOW);
274 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION);
275 supported[i++] = OBT_PROP_ATOM(NET_MOVERESIZE_WINDOW);
276 supported[i++] = OBT_PROP_ATOM(NET_WM_MOVERESIZE);
277 supported[i++] = OBT_PROP_ATOM(NET_WM_USER_TIME);
278 /*
279 supported[i++] = OBT_PROP_ATOM(NET_WM_USER_TIME_WINDOW);
280 */
281 supported[i++] = OBT_PROP_ATOM(NET_FRAME_EXTENTS);
282 supported[i++] = OBT_PROP_ATOM(NET_REQUEST_FRAME_EXTENTS);
283 supported[i++] = OBT_PROP_ATOM(NET_RESTACK_WINDOW);
284 supported[i++] = OBT_PROP_ATOM(NET_STARTUP_ID);
285 #ifdef SYNC
286 supported[i++] = OBT_PROP_ATOM(NET_WM_SYNC_REQUEST);
287 supported[i++] = OBT_PROP_ATOM(NET_WM_SYNC_REQUEST_COUNTER);
288 #endif
289 supported[i++] = OBT_PROP_ATOM(NET_WM_PID);
290 supported[i++] = OBT_PROP_ATOM(NET_WM_PING);
291
292 supported[i++] = OBT_PROP_ATOM(KDE_WM_CHANGE_STATE);
293 supported[i++] = OBT_PROP_ATOM(KDE_NET_WM_FRAME_STRUT);
294 supported[i++] = OBT_PROP_ATOM(KDE_NET_WM_WINDOW_TYPE_OVERRIDE);
295
296 supported[i++] = OBT_PROP_ATOM(OB_WM_ACTION_UNDECORATE);
297 supported[i++] = OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED);
298 supported[i++] = OBT_PROP_ATOM(OPENBOX_PID);
299 supported[i++] = OBT_PROP_ATOM(OB_THEME);
300 supported[i++] = OBT_PROP_ATOM(OB_CONFIG_FILE);
301 supported[i++] = OBT_PROP_ATOM(OB_CONTROL);
302 supported[i++] = OBT_PROP_ATOM(OB_VERSION);
303 supported[i++] = OBT_PROP_ATOM(OB_APP_ROLE);
304 supported[i++] = OBT_PROP_ATOM(OB_APP_TITLE);
305 supported[i++] = OBT_PROP_ATOM(OB_APP_NAME);
306 supported[i++] = OBT_PROP_ATOM(OB_APP_CLASS);
307 supported[i++] = OBT_PROP_ATOM(OB_APP_TYPE);
308 g_assert(i == num_support);
309
310 OBT_PROP_SETA32(obt_root(ob_screen),
311 NET_SUPPORTED, ATOM, supported, num_support);
312 g_free(supported);
313
314 OBT_PROP_SETS(RootWindow(obt_display, ob_screen), OB_VERSION, utf8,
315 OPENBOX_VERSION);
316
317 screen_tell_ksplash();
318
319 return TRUE;
320 }
321
322 static void screen_tell_ksplash(void)
323 {
324 XEvent e;
325 char **argv;
326
327 argv = g_new(gchar*, 6);
328 argv[0] = g_strdup("dcop");
329 argv[1] = g_strdup("ksplash");
330 argv[2] = g_strdup("ksplash");
331 argv[3] = g_strdup("upAndRunning(QString)");
332 argv[4] = g_strdup("wm started");
333 argv[5] = NULL;
334
335 /* tell ksplash through the dcop server command line interface */
336 g_spawn_async(NULL, argv, NULL,
337 G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD |
338 G_SPAWN_STDERR_TO_DEV_NULL | G_SPAWN_STDOUT_TO_DEV_NULL,
339 NULL, NULL, NULL, NULL);
340 g_strfreev(argv);
341
342 /* i'm not sure why we do this, kwin does it, but ksplash doesn't seem to
343 hear it anyways. perhaps it is for old ksplash. or new ksplash. or
344 something. oh well. */
345 e.xclient.type = ClientMessage;
346 e.xclient.display = obt_display;
347 e.xclient.window = obt_root(ob_screen);
348 e.xclient.message_type =
349 XInternAtom(obt_display, "_KDE_SPLASH_PROGRESS", False);
350 e.xclient.format = 8;
351 strcpy(e.xclient.data.b, "wm started");
352 XSendEvent(obt_display, obt_root(ob_screen),
353 False, SubstructureNotifyMask, &e);
354 }
355
356 void screen_startup(gboolean reconfig)
357 {
358 gchar **names = NULL;
359 guint32 d;
360 gboolean namesexist = FALSE;
361
362 desktop_popup = pager_popup_new();
363 desktop_popup_perm = FALSE;
364 pager_popup_height(desktop_popup, POPUP_HEIGHT);
365
366 if (reconfig) {
367 /* update the pager popup's width */
368 pager_popup_text_width_to_strings(desktop_popup,
369 screen_desktop_names,
370 screen_num_desktops);
371 return;
372 }
373
374 /* get the initial size */
375 screen_resize();
376
377 /* have names already been set for the desktops? */
378 if (OBT_PROP_GETSS(obt_root(ob_screen), NET_DESKTOP_NAMES, utf8, &names)) {
379 g_strfreev(names);
380 namesexist = TRUE;
381 }
382
383 /* if names don't exist and we have session names, set those.
384 do this stuff BEFORE setting the number of desktops, because that
385 will create default names for them
386 */
387 if (!namesexist && session_desktop_names != NULL) {
388 guint i, numnames;
389 GSList *it;
390
391 /* get the desktop names */
392 numnames = g_slist_length(session_desktop_names);
393 names = g_new(gchar*, numnames + 1);
394 names[numnames] = NULL;
395 for (i = 0, it = session_desktop_names; it; ++i, it = g_slist_next(it))
396 names[i] = g_strdup(it->data);
397
398 /* set the root window property */
399 OBT_PROP_SETSS(obt_root(ob_screen),
400 NET_DESKTOP_NAMES, utf8, (const gchar*const*)names);
401
402 g_strfreev(names);
403 }
404
405 /* set the number of desktops, if it's not already set.
406
407 this will also set the default names from the config file up for
408 desktops that don't have names yet */
409 screen_num_desktops = 0;
410 if (OBT_PROP_GET32(obt_root(ob_screen),
411 NET_NUMBER_OF_DESKTOPS, CARDINAL, &d))
412 {
413 if (d != config_desktops_num) {
414 /* TRANSLATORS: If you need to specify a different order of the
415 arguments, you can use %1$d for the first one and %2$d for the
416 second one. For example,
417 "The current session has %2$d desktops, but Openbox is configured for %1$d ..." */
418 g_warning(ngettext("Openbox is configured for %d desktop, but the current session has %d. Overriding the Openbox configuration.", "Openbox is configured for %d desktops, but the current session has %d. Overriding the Openbox configuration.", config_desktops_num),
419 config_desktops_num, d);
420 }
421 screen_set_num_desktops(d);
422 }
423 /* restore from session if possible */
424 else if (session_num_desktops)
425 screen_set_num_desktops(session_num_desktops);
426 else
427 screen_set_num_desktops(config_desktops_num);
428
429 screen_desktop = screen_num_desktops; /* something invalid */
430 /* start on the current desktop when a wm was already running */
431 if (OBT_PROP_GET32(obt_root(ob_screen),
432 NET_CURRENT_DESKTOP, CARDINAL, &d) &&
433 d < screen_num_desktops)
434 {
435 screen_set_desktop(d, FALSE);
436 } else if (session_desktop >= 0)
437 screen_set_desktop(MIN((guint)session_desktop,
438 screen_num_desktops), FALSE);
439 else
440 screen_set_desktop(MIN(config_screen_firstdesk,
441 screen_num_desktops) - 1, FALSE);
442 screen_last_desktop = screen_desktop;
443
444 /* don't start in showing-desktop mode */
445 screen_showing_desktop = FALSE;
446 OBT_PROP_SET32(obt_root(ob_screen),
447 NET_SHOWING_DESKTOP, CARDINAL, screen_showing_desktop);
448
449 if (session_desktop_layout_present &&
450 screen_validate_layout(&session_desktop_layout))
451 {
452 screen_desktop_layout = session_desktop_layout;
453 }
454 else
455 screen_update_layout();
456 }
457
458 void screen_shutdown(gboolean reconfig)
459 {
460 pager_popup_free(desktop_popup);
461
462 if (reconfig)
463 return;
464
465 XSelectInput(obt_display, obt_root(ob_screen), NoEventMask);
466
467 /* we're not running here no more! */
468 OBT_PROP_ERASE(obt_root(ob_screen), OPENBOX_PID);
469 /* not without us */
470 OBT_PROP_ERASE(obt_root(ob_screen), NET_SUPPORTED);
471 /* don't keep this mode */
472 OBT_PROP_ERASE(obt_root(ob_screen), NET_SHOWING_DESKTOP);
473
474 XDestroyWindow(obt_display, screen_support_win);
475
476 g_strfreev(screen_desktop_names);
477 screen_desktop_names = NULL;
478 }
479
480 void screen_resize(void)
481 {
482 static gint oldw = 0, oldh = 0;
483 gint w, h;
484 GList *it;
485 gulong geometry[2];
486
487 w = WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen));
488 h = HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen));
489
490 if (w == oldw && h == oldh) return;
491
492 oldw = w; oldh = h;
493
494 /* Set the _NET_DESKTOP_GEOMETRY hint */
495 screen_physical_size.width = geometry[0] = w;
496 screen_physical_size.height = geometry[1] = h;
497 OBT_PROP_SETA32(obt_root(ob_screen),
498 NET_DESKTOP_GEOMETRY, CARDINAL, geometry, 2);
499
500 if (ob_state() != OB_STATE_RUNNING)
501 return;
502
503 screen_update_areas();
504 dock_configure();
505
506 for (it = client_list; it; it = g_list_next(it))
507 client_move_onscreen(it->data, FALSE);
508 }
509
510 void screen_set_num_desktops(guint num)
511 {
512 gulong *viewport;
513 GList *it, *stacking_copy;
514
515 g_assert(num > 0);
516
517 if (screen_num_desktops == num) return;
518
519 screen_num_desktops = num;
520 OBT_PROP_SET32(obt_root(ob_screen), NET_NUMBER_OF_DESKTOPS, CARDINAL, num);
521
522 /* set the viewport hint */
523 viewport = g_new0(gulong, num * 2);
524 OBT_PROP_SETA32(obt_root(ob_screen),
525 NET_DESKTOP_VIEWPORT, CARDINAL, viewport, num * 2);
526 g_free(viewport);
527
528 /* the number of rows/columns will differ */
529 screen_update_layout();
530
531 /* move windows on desktops that will no longer exist!
532 make a copy of the list cuz we're changing it */
533 stacking_copy = g_list_copy(stacking_list);
534 for (it = g_list_last(stacking_copy); it; it = g_list_previous(it)) {
535 if (WINDOW_IS_CLIENT(it->data)) {
536 ObClient *c = it->data;
537 if (c->desktop != DESKTOP_ALL && c->desktop >= num)
538 client_set_desktop(c, num - 1, FALSE, TRUE);
539 /* raise all the windows that are on the current desktop which
540 is being merged */
541 else if (screen_desktop == num - 1 &&
542 (c->desktop == DESKTOP_ALL ||
543 c->desktop == screen_desktop))
544 stacking_raise(CLIENT_AS_WINDOW(c));
545 }
546 }
547 g_list_free(stacking_copy);
548
549 /* change our struts/area to match (after moving windows) */
550 screen_update_areas();
551
552 /* may be some unnamed desktops that we need to fill in with names
553 (after updating the areas so the popup can resize) */
554 screen_update_desktop_names();
555
556 /* change our desktop if we're on one that no longer exists! */
557 if (screen_desktop >= screen_num_desktops)
558 screen_set_desktop(num - 1, TRUE);
559 }
560
561 static void screen_fallback_focus(void)
562 {
563 ObClient *c;
564 gboolean allow_omni;
565
566 /* only allow omnipresent windows to get focus on desktop change if
567 an omnipresent window is already focused (it'll keep focus probably, but
568 maybe not depending on mouse-focus options) */
569 allow_omni = focus_client && (client_normal(focus_client) &&
570 focus_client->desktop == DESKTOP_ALL);
571
572 /* the client moved there already so don't move focus. prevent flicker
573 on sendtodesktop + follow */
574 if (focus_client && focus_client->desktop == screen_desktop)
575 return;
576
577 /* have to try focus here because when you leave an empty desktop
578 there is no focus out to watch for. also, we have different rules
579 here. we always allow it to look under the mouse pointer if
580 config_focus_last is FALSE
581
582 do this before hiding the windows so if helper windows are coming
583 with us, they don't get hidden
584 */
585 if ((c = focus_fallback(TRUE, !config_focus_last, allow_omni,
586 !allow_omni)))
587 {
588 /* only do the flicker reducing stuff ahead of time if we are going
589 to call xsetinputfocus on the window ourselves. otherwise there is
590 no guarantee the window will actually take focus.. */
591 if (c->can_focus) {
592 /* reduce flicker by hiliting now rather than waiting for the
593 server FocusIn event */
594 frame_adjust_focus(c->frame, TRUE);
595 /* do this here so that if you switch desktops to a window with
596 helper windows then the helper windows won't flash */
597 client_bring_helper_windows(c);
598 }
599 }
600 }
601
602 static gboolean last_desktop_func(gpointer data)
603 {
604 screen_desktop_timeout = TRUE;
605 screen_desktop_timer = 0;
606 return FALSE; /* don't repeat */
607 }
608
609 void screen_set_desktop(guint num, gboolean dofocus)
610 {
611 GList *it;
612 guint previous;
613 gulong ignore_start;
614
615 g_assert(num < screen_num_desktops);
616
617 previous = screen_desktop;
618 screen_desktop = num;
619
620 if (previous == num) return;
621
622 OBT_PROP_SET32(obt_root(ob_screen), NET_CURRENT_DESKTOP, CARDINAL, num);
623
624 /* This whole thing decides when/how to save the screen_last_desktop so
625 that it can be restored later if you want */
626 if (screen_desktop_timeout) {
627 /* If screen_desktop_timeout is true, then we've been on this desktop
628 long enough and we can save it as the last desktop. */
629
630 if (screen_last_desktop == previous)
631 /* this is the startup state only */
632 screen_old_desktop = screen_desktop;
633 else {
634 /* save the "last desktop" as the "old desktop" */
635 screen_old_desktop = screen_last_desktop;
636 /* save the desktop we're coming from as the "last desktop" */
637 screen_last_desktop = previous;
638 }
639 }
640 else {
641 /* If screen_desktop_timeout is false, then we just got to this desktop
642 and we are moving away again. */
643
644 if (screen_desktop == screen_last_desktop) {
645 /* If we are moving to the "last desktop" .. */
646 if (previous == screen_old_desktop) {
647 /* .. from the "old desktop", change the last desktop to
648 be where we are coming from */
649 screen_last_desktop = screen_old_desktop;
650 }
651 else if (screen_last_desktop == screen_old_desktop) {
652 /* .. and also to the "old desktop", change the "last
653 desktop" to be where we are coming from */
654 screen_last_desktop = previous;
655 }
656 else {
657 /* .. from some other desktop, then set the "last desktop" to
658 be the saved "old desktop", i.e. where we were before the
659 "last desktop" */
660 screen_last_desktop = screen_old_desktop;
661 }
662 }
663 else {
664 /* If we are moving to any desktop besides the "last desktop"..
665 (this is the normal case) */
666 if (screen_desktop == screen_old_desktop) {
667 /* If moving to the "old desktop", which is not the
668 "last desktop", don't save anything */
669 }
670 else if (previous == screen_old_desktop) {
671 /* If moving from the "old desktop", and not to the
672 "last desktop", don't save anything */
673 }
674 else if (screen_last_desktop == screen_old_desktop) {
675 /* If the "last desktop" is the same as "old desktop" and
676 you're not moving to the "last desktop" then save where
677 we're coming from as the "last desktop" */
678 screen_last_desktop = previous;
679 }
680 else {
681 /* If the "last desktop" is different from the "old desktop"
682 and you're not moving to the "last desktop", then don't save
683 anything */
684 }
685 }
686 }
687 screen_desktop_timeout = FALSE;
688 if (screen_desktop_timer) g_source_remove(screen_desktop_timer);
689 screen_desktop_timer = g_timeout_add(REMEMBER_LAST_DESKTOP_TIME,
690 last_desktop_func, NULL);
691
692 ob_debug("Moving to desktop %d", num+1);
693
694 if (ob_state() == OB_STATE_RUNNING)
695 screen_show_desktop_popup(screen_desktop, FALSE);
696
697 /* ignore enter events caused by the move */
698 ignore_start = event_start_ignore_all_enters();
699
700 if (moveresize_client)
701 client_set_desktop(moveresize_client, num, TRUE, FALSE);
702
703 /* show windows before hiding the rest to lessen the enter/leave events */
704
705 /* show windows from top to bottom */
706 for (it = stacking_list; it; it = g_list_next(it)) {
707 if (WINDOW_IS_CLIENT(it->data)) {
708 ObClient *c = it->data;
709 client_show(c);
710 }
711 }
712
713 if (dofocus) screen_fallback_focus();
714
715 /* hide windows from bottom to top */
716 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
717 if (WINDOW_IS_CLIENT(it->data)) {
718 ObClient *c = it->data;
719 if (client_hide(c)) {
720 if (c == focus_client) {
721 /* c was focused and we didn't do fallback clearly so make
722 sure openbox doesnt still consider the window focused.
723 this happens when using NextWindow with allDesktops,
724 since it doesnt want to move focus on desktop change,
725 but the focus is not going to stay with the current
726 window, which has now disappeared.
727 only do this if the client was actually hidden,
728 otherwise it can keep focus. */
729 focus_set_client(NULL);
730 }
731 }
732 }
733 }
734
735 focus_cycle_addremove(NULL, TRUE);
736
737 event_end_ignore_all_enters(ignore_start);
738
739 if (event_source_time() != CurrentTime)
740 screen_desktop_user_time = event_source_time();
741 }
742
743 void screen_add_desktop(gboolean current)
744 {
745 gulong ignore_start;
746
747 /* ignore enter events caused by this */
748 ignore_start = event_start_ignore_all_enters();
749
750 screen_set_num_desktops(screen_num_desktops+1);
751
752 /* move all the clients over */
753 if (current) {
754 GList *it;
755
756 for (it = client_list; it; it = g_list_next(it)) {
757 ObClient *c = it->data;
758 if (c->desktop != DESKTOP_ALL && c->desktop >= screen_desktop &&
759 /* don't move direct children, they'll be moved with their
760 parent - which will have to be on the same desktop */
761 !client_direct_parent(c))
762 {
763 ob_debug("moving window %s", c->title);
764 client_set_desktop(c, c->desktop+1, FALSE, TRUE);
765 }
766 }
767 }
768
769 event_end_ignore_all_enters(ignore_start);
770 }
771
772 void screen_remove_desktop(gboolean current)
773 {
774 guint rmdesktop, movedesktop;
775 GList *it, *stacking_copy;
776 gulong ignore_start;
777
778 if (screen_num_desktops <= 1) return;
779
780 /* ignore enter events caused by this */
781 ignore_start = event_start_ignore_all_enters();
782
783 /* what desktop are we removing and moving to? */
784 if (current)
785 rmdesktop = screen_desktop;
786 else
787 rmdesktop = screen_num_desktops - 1;
788 if (rmdesktop < screen_num_desktops - 1)
789 movedesktop = rmdesktop + 1;
790 else
791 movedesktop = rmdesktop;
792
793 /* make a copy of the list cuz we're changing it */
794 stacking_copy = g_list_copy(stacking_list);
795 for (it = g_list_last(stacking_copy); it; it = g_list_previous(it)) {
796 if (WINDOW_IS_CLIENT(it->data)) {
797 ObClient *c = it->data;
798 guint d = c->desktop;
799 if (d != DESKTOP_ALL && d >= movedesktop &&
800 /* don't move direct children, they'll be moved with their
801 parent - which will have to be on the same desktop */
802 !client_direct_parent(c))
803 {
804 ob_debug("moving window %s", c->title);
805 client_set_desktop(c, c->desktop - 1, TRUE, TRUE);
806 }
807 /* raise all the windows that are on the current desktop which
808 is being merged */
809 if ((screen_desktop == rmdesktop - 1 ||
810 screen_desktop == rmdesktop) &&
811 (d == DESKTOP_ALL || d == screen_desktop))
812 {
813 stacking_raise(CLIENT_AS_WINDOW(c));
814 ob_debug("raising window %s", c->title);
815 }
816 }
817 }
818 g_list_free(stacking_copy);
819
820 /* fallback focus like we're changing desktops */
821 if (screen_desktop < screen_num_desktops - 1) {
822 screen_fallback_focus();
823 ob_debug("fake desktop change");
824 }
825
826 screen_set_num_desktops(screen_num_desktops-1);
827
828 event_end_ignore_all_enters(ignore_start);
829 }
830
831 static void get_row_col(guint d, guint *r, guint *c)
832 {
833 switch (screen_desktop_layout.orientation) {
834 case OB_ORIENTATION_HORZ:
835 switch (screen_desktop_layout.start_corner) {
836 case OB_CORNER_TOPLEFT:
837 *r = d / screen_desktop_layout.columns;
838 *c = d % screen_desktop_layout.columns;
839 break;
840 case OB_CORNER_BOTTOMLEFT:
841 *r = screen_desktop_layout.rows - 1 -
842 d / screen_desktop_layout.columns;
843 *c = d % screen_desktop_layout.columns;
844 break;
845 case OB_CORNER_TOPRIGHT:
846 *r = d / screen_desktop_layout.columns;
847 *c = screen_desktop_layout.columns - 1 -
848 d % screen_desktop_layout.columns;
849 break;
850 case OB_CORNER_BOTTOMRIGHT:
851 *r = screen_desktop_layout.rows - 1 -
852 d / screen_desktop_layout.columns;
853 *c = screen_desktop_layout.columns - 1 -
854 d % screen_desktop_layout.columns;
855 break;
856 }
857 break;
858 case OB_ORIENTATION_VERT:
859 switch (screen_desktop_layout.start_corner) {
860 case OB_CORNER_TOPLEFT:
861 *r = d % screen_desktop_layout.rows;
862 *c = d / screen_desktop_layout.rows;
863 break;
864 case OB_CORNER_BOTTOMLEFT:
865 *r = screen_desktop_layout.rows - 1 -
866 d % screen_desktop_layout.rows;
867 *c = d / screen_desktop_layout.rows;
868 break;
869 case OB_CORNER_TOPRIGHT:
870 *r = d % screen_desktop_layout.rows;
871 *c = screen_desktop_layout.columns - 1 -
872 d / screen_desktop_layout.rows;
873 break;
874 case OB_CORNER_BOTTOMRIGHT:
875 *r = screen_desktop_layout.rows - 1 -
876 d % screen_desktop_layout.rows;
877 *c = screen_desktop_layout.columns - 1 -
878 d / screen_desktop_layout.rows;
879 break;
880 }
881 break;
882 }
883 }
884
885 static guint translate_row_col(guint r, guint c)
886 {
887 switch (screen_desktop_layout.orientation) {
888 case OB_ORIENTATION_HORZ:
889 switch (screen_desktop_layout.start_corner) {
890 case OB_CORNER_TOPLEFT:
891 return r % screen_desktop_layout.rows *
892 screen_desktop_layout.columns +
893 c % screen_desktop_layout.columns;
894 case OB_CORNER_BOTTOMLEFT:
895 return (screen_desktop_layout.rows - 1 -
896 r % screen_desktop_layout.rows) *
897 screen_desktop_layout.columns +
898 c % screen_desktop_layout.columns;
899 case OB_CORNER_TOPRIGHT:
900 return r % screen_desktop_layout.rows *
901 screen_desktop_layout.columns +
902 (screen_desktop_layout.columns - 1 -
903 c % screen_desktop_layout.columns);
904 case OB_CORNER_BOTTOMRIGHT:
905 return (screen_desktop_layout.rows - 1 -
906 r % screen_desktop_layout.rows) *
907 screen_desktop_layout.columns +
908 (screen_desktop_layout.columns - 1 -
909 c % screen_desktop_layout.columns);
910 }
911 case OB_ORIENTATION_VERT:
912 switch (screen_desktop_layout.start_corner) {
913 case OB_CORNER_TOPLEFT:
914 return c % screen_desktop_layout.columns *
915 screen_desktop_layout.rows +
916 r % screen_desktop_layout.rows;
917 case OB_CORNER_BOTTOMLEFT:
918 return c % screen_desktop_layout.columns *
919 screen_desktop_layout.rows +
920 (screen_desktop_layout.rows - 1 -
921 r % screen_desktop_layout.rows);
922 case OB_CORNER_TOPRIGHT:
923 return (screen_desktop_layout.columns - 1 -
924 c % screen_desktop_layout.columns) *
925 screen_desktop_layout.rows +
926 r % screen_desktop_layout.rows;
927 case OB_CORNER_BOTTOMRIGHT:
928 return (screen_desktop_layout.columns - 1 -
929 c % screen_desktop_layout.columns) *
930 screen_desktop_layout.rows +
931 (screen_desktop_layout.rows - 1 -
932 r % screen_desktop_layout.rows);
933 }
934 }
935 g_assert_not_reached();
936 return 0;
937 }
938
939 static gboolean hide_desktop_popup_func(gpointer data)
940 {
941 pager_popup_hide(desktop_popup);
942 desktop_popup_timer = 0;
943 return FALSE; /* don't repeat */
944 }
945
946 void screen_show_desktop_popup(guint d, gboolean perm)
947 {
948 const Rect *a;
949
950 /* 0 means don't show the popup */
951 if (!config_desktop_popup_time) return;
952
953 a = screen_physical_area_primary(FALSE);
954 pager_popup_position(desktop_popup, CenterGravity,
955 a->x + a->width / 2, a->y + a->height / 2);
956 pager_popup_icon_size_multiplier(desktop_popup,
957 (screen_desktop_layout.columns /
958 screen_desktop_layout.rows) / 2,
959 (screen_desktop_layout.rows/
960 screen_desktop_layout.columns) / 2);
961 pager_popup_max_width(desktop_popup,
962 MAX(a->width/3, POPUP_WIDTH));
963 pager_popup_show(desktop_popup, screen_desktop_names[d], d);
964
965 if (desktop_popup_timer) g_source_remove(desktop_popup_timer);
966 desktop_popup_timer = 0;
967 if (!perm && !desktop_popup_perm)
968 /* only hide if its not already being show permanently */
969 desktop_popup_timer = g_timeout_add(config_desktop_popup_time,
970 hide_desktop_popup_func,
971 desktop_popup);
972 if (perm)
973 desktop_popup_perm = TRUE;
974 }
975
976 void screen_hide_desktop_popup(void)
977 {
978 if (desktop_popup_timer) g_source_remove(desktop_popup_timer);
979 desktop_popup_timer = 0;
980 pager_popup_hide(desktop_popup);
981 desktop_popup_perm = FALSE;
982 }
983
984 guint screen_find_desktop(guint from, ObDirection dir,
985 gboolean wrap, gboolean linear)
986 {
987 guint r, c;
988 guint d;
989
990 d = from;
991 get_row_col(d, &r, &c);
992 if (linear) {
993 switch (dir) {
994 case OB_DIRECTION_EAST:
995 if (d < screen_num_desktops - 1)
996 ++d;
997 else if (wrap)
998 d = 0;
999 else
1000 return from;
1001 break;
1002 case OB_DIRECTION_WEST:
1003 if (d > 0)
1004 --d;
1005 else if (wrap)
1006 d = screen_num_desktops - 1;
1007 else
1008 return from;
1009 break;
1010 default:
1011 g_assert_not_reached();
1012 return from;
1013 }
1014 } else {
1015 switch (dir) {
1016 case OB_DIRECTION_EAST:
1017 ++c;
1018 if (c >= screen_desktop_layout.columns) {
1019 if (wrap)
1020 c = 0;
1021 else
1022 return from;
1023 }
1024 d = translate_row_col(r, c);
1025 if (d >= screen_num_desktops) {
1026 if (wrap)
1027 ++c;
1028 else
1029 return from;
1030 }
1031 break;
1032 case OB_DIRECTION_WEST:
1033 --c;
1034 if (c >= screen_desktop_layout.columns) {
1035 if (wrap)
1036 c = screen_desktop_layout.columns - 1;
1037 else
1038 return from;
1039 }
1040 d = translate_row_col(r, c);
1041 if (d >= screen_num_desktops) {
1042 if (wrap)
1043 --c;
1044 else
1045 return from;
1046 }
1047 break;
1048 case OB_DIRECTION_SOUTH:
1049 ++r;
1050 if (r >= screen_desktop_layout.rows) {
1051 if (wrap)
1052 r = 0;
1053 else
1054 return from;
1055 }
1056 d = translate_row_col(r, c);
1057 if (d >= screen_num_desktops) {
1058 if (wrap)
1059 ++r;
1060 else
1061 return from;
1062 }
1063 break;
1064 case OB_DIRECTION_NORTH:
1065 --r;
1066 if (r >= screen_desktop_layout.rows) {
1067 if (wrap)
1068 r = screen_desktop_layout.rows - 1;
1069 else
1070 return from;
1071 }
1072 d = translate_row_col(r, c);
1073 if (d >= screen_num_desktops) {
1074 if (wrap)
1075 --r;
1076 else
1077 return from;
1078 }
1079 break;
1080 default:
1081 g_assert_not_reached();
1082 return from;
1083 }
1084
1085 d = translate_row_col(r, c);
1086 }
1087 return d;
1088 }
1089
1090 static gboolean screen_validate_layout(ObDesktopLayout *l)
1091 {
1092 if (l->columns == 0 && l->rows == 0) /* both 0's is bad data.. */
1093 return FALSE;
1094
1095 /* fill in a zero rows/columns */
1096 if (l->columns == 0) {
1097 l->columns = screen_num_desktops / l->rows;
1098 if (l->rows * l->columns < screen_num_desktops)
1099 l->columns++;
1100 if (l->rows * l->columns >= screen_num_desktops + l->columns)
1101 l->rows--;
1102 } else if (l->rows == 0) {
1103 l->rows = screen_num_desktops / l->columns;
1104 if (l->columns * l->rows < screen_num_desktops)
1105 l->rows++;
1106 if (l->columns * l->rows >= screen_num_desktops + l->rows)
1107 l->columns--;
1108 }
1109
1110 /* bounds checking */
1111 if (l->orientation == OB_ORIENTATION_HORZ) {
1112 l->columns = MIN(screen_num_desktops, l->columns);
1113 l->rows = MIN(l->rows,
1114 (screen_num_desktops + l->columns - 1) / l->columns);
1115 l->columns = screen_num_desktops / l->rows +
1116 !!(screen_num_desktops % l->rows);
1117 } else {
1118 l->rows = MIN(screen_num_desktops, l->rows);
1119 l->columns = MIN(l->columns,
1120 (screen_num_desktops + l->rows - 1) / l->rows);
1121 l->rows = screen_num_desktops / l->columns +
1122 !!(screen_num_desktops % l->columns);
1123 }
1124 return TRUE;
1125 }
1126
1127 void screen_update_layout(void)
1128
1129 {
1130 ObDesktopLayout l;
1131 guint32 *data;
1132 guint num;
1133
1134 screen_desktop_layout.orientation = OB_ORIENTATION_HORZ;
1135 screen_desktop_layout.start_corner = OB_CORNER_TOPLEFT;
1136 screen_desktop_layout.rows = 1;
1137 screen_desktop_layout.columns = screen_num_desktops;
1138
1139 if (OBT_PROP_GETA32(obt_root(ob_screen),
1140 NET_DESKTOP_LAYOUT, CARDINAL, &data, &num)) {
1141 if (num == 3 || num == 4) {
1142
1143 if (data[0] == OBT_PROP_ATOM(NET_WM_ORIENTATION_VERT))
1144 l.orientation = OB_ORIENTATION_VERT;
1145 else if (data[0] == OBT_PROP_ATOM(NET_WM_ORIENTATION_HORZ))
1146 l.orientation = OB_ORIENTATION_HORZ;
1147 else
1148 return;
1149
1150 if (num < 4)
1151 l.start_corner = OB_CORNER_TOPLEFT;
1152 else {
1153 if (data[3] == OBT_PROP_ATOM(NET_WM_TOPLEFT))
1154 l.start_corner = OB_CORNER_TOPLEFT;
1155 else if (data[3] == OBT_PROP_ATOM(NET_WM_TOPRIGHT))
1156 l.start_corner = OB_CORNER_TOPRIGHT;
1157 else if (data[3] == OBT_PROP_ATOM(NET_WM_BOTTOMRIGHT))
1158 l.start_corner = OB_CORNER_BOTTOMRIGHT;
1159 else if (data[3] == OBT_PROP_ATOM(NET_WM_BOTTOMLEFT))
1160 l.start_corner = OB_CORNER_BOTTOMLEFT;
1161 else
1162 return;
1163 }
1164
1165 l.columns = data[1];
1166 l.rows = data[2];
1167
1168 if (screen_validate_layout(&l))
1169 screen_desktop_layout = l;
1170
1171 g_free(data);
1172 }
1173 }
1174 }
1175
1176 void screen_update_desktop_names(void)
1177 {
1178 guint i;
1179
1180 /* empty the array */
1181 g_strfreev(screen_desktop_names);
1182 screen_desktop_names = NULL;
1183
1184 if (OBT_PROP_GETSS(obt_root(ob_screen),
1185 NET_DESKTOP_NAMES, utf8, &screen_desktop_names))
1186 for (i = 0; screen_desktop_names[i] && i < screen_num_desktops; ++i);
1187 else
1188 i = 0;
1189 if (i < screen_num_desktops) {
1190 GSList *it;
1191
1192 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
1193 screen_num_desktops + 1);
1194 screen_desktop_names[screen_num_desktops] = NULL;
1195
1196 it = g_slist_nth(config_desktops_names, i);
1197
1198 for (; i < screen_num_desktops; ++i) {
1199 if (it && ((char*)it->data)[0]) /* not empty */
1200 /* use the names from the config file when possible */
1201 screen_desktop_names[i] = g_strdup(it->data);
1202 else
1203 /* make up a nice name if it's not though */
1204 screen_desktop_names[i] = g_strdup_printf(_("desktop %i"),
1205 i + 1);
1206 if (it) it = g_slist_next(it);
1207 }
1208
1209 /* if we changed any names, then set the root property so we can
1210 all agree on the names */
1211 OBT_PROP_SETSS(obt_root(ob_screen), NET_DESKTOP_NAMES,
1212 utf8, (const gchar*const*)screen_desktop_names);
1213 }
1214
1215 /* resize the pager for these names */
1216 pager_popup_text_width_to_strings(desktop_popup,
1217 screen_desktop_names,
1218 screen_num_desktops);
1219 }
1220
1221 void screen_show_desktop(gboolean show, ObClient *show_only)
1222 {
1223 GList *it;
1224
1225 if (show == screen_showing_desktop) return; /* no change */
1226
1227 screen_showing_desktop = show;
1228
1229 if (show) {
1230 /* hide windows bottom to top */
1231 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
1232 if (WINDOW_IS_CLIENT(it->data)) {
1233 ObClient *client = it->data;
1234 client_showhide(client);
1235 }
1236 }
1237 }
1238 else {
1239 /* restore windows top to bottom */
1240 for (it = stacking_list; it; it = g_list_next(it)) {
1241 if (WINDOW_IS_CLIENT(it->data)) {
1242 ObClient *client = it->data;
1243 if (client_should_show(client)) {
1244 if (!show_only || client == show_only)
1245 client_show(client);
1246 else
1247 client_iconify(client, TRUE, FALSE, TRUE);
1248 }
1249 }
1250 }
1251 }
1252
1253 if (show) {
1254 /* focus the desktop */
1255 for (it = focus_order; it; it = g_list_next(it)) {
1256 ObClient *c = it->data;
1257 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
1258 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
1259 client_focus(it->data))
1260 break;
1261 }
1262 }
1263 else if (!show_only) {
1264 ObClient *c;
1265
1266 if ((c = focus_fallback(TRUE, FALSE, TRUE, FALSE))) {
1267 /* only do the flicker reducing stuff ahead of time if we are going
1268 to call xsetinputfocus on the window ourselves. otherwise there
1269 is no guarantee the window will actually take focus.. */
1270 if (c->can_focus) {
1271 /* reduce flicker by hiliting now rather than waiting for the
1272 server FocusIn event */
1273 frame_adjust_focus(c->frame, TRUE);
1274 }
1275 }
1276 }
1277
1278 show = !!show; /* make it boolean */
1279 OBT_PROP_SET32(obt_root(ob_screen), NET_SHOWING_DESKTOP, CARDINAL, show);
1280 }
1281
1282 void screen_install_colormap(ObClient *client, gboolean install)
1283 {
1284 if (client == NULL || client->colormap == None) {
1285 if (install)
1286 XInstallColormap(obt_display, RrColormap(ob_rr_inst));
1287 else
1288 XUninstallColormap(obt_display, RrColormap(ob_rr_inst));
1289 } else {
1290 obt_display_ignore_errors(TRUE);
1291 if (install)
1292 XInstallColormap(obt_display, client->colormap);
1293 else
1294 XUninstallColormap(obt_display, client->colormap);
1295 obt_display_ignore_errors(FALSE);
1296 }
1297 }
1298
1299 typedef struct {
1300 guint desktop;
1301 StrutPartial *strut;
1302 } ObScreenStrut;
1303
1304 #define RESET_STRUT_LIST(sl) \
1305 while (sl) { \
1306 g_slice_free(ObScreenStrut, (sl)->data); \
1307 sl = g_slist_delete_link(sl, sl); \
1308 }
1309
1310 #define ADD_STRUT_TO_LIST(sl, d, s) \
1311 { \
1312 ObScreenStrut *ss = g_slice_new(ObScreenStrut); \
1313 ss->desktop = d; \
1314 ss->strut = s; \
1315 sl = g_slist_prepend(sl, ss); \
1316 }
1317
1318 #define VALIDATE_STRUTS(sl, side, max) \
1319 { \
1320 GSList *it; \
1321 for (it = sl; it; it = g_slist_next(it)) { \
1322 ObScreenStrut *ss = it->data; \
1323 ss->strut->side = MIN(max, ss->strut->side); \
1324 } \
1325 }
1326
1327 static void get_xinerama_screens(Rect **xin_areas, guint *nxin)
1328 {
1329 guint i;
1330 gint n, l, r, t, b;
1331 #ifdef XINERAMA
1332 XineramaScreenInfo *info;
1333 #endif
1334
1335 if (ob_debug_xinerama) {
1336 gint w = WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen));
1337 gint h = HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen));
1338 *nxin = 2;
1339 *xin_areas = g_new(Rect, *nxin + 1);
1340 RECT_SET((*xin_areas)[0], 0, 0, w/2, h);
1341 RECT_SET((*xin_areas)[1], w/2, 0, w-(w/2), h);
1342 }
1343 #ifdef XINERAMA
1344 else if (obt_display_extension_xinerama &&
1345 (info = XineramaQueryScreens(obt_display, &n))) {
1346 *nxin = n;
1347 *xin_areas = g_new(Rect, *nxin + 1);
1348 for (i = 0; i < *nxin; ++i)
1349 RECT_SET((*xin_areas)[i], info[i].x_org, info[i].y_org,
1350 info[i].width, info[i].height);
1351 XFree(info);
1352 }
1353 #endif
1354 else {
1355 *nxin = 1;
1356 *xin_areas = g_new(Rect, *nxin + 1);
1357 RECT_SET((*xin_areas)[0], 0, 0,
1358 WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen)),
1359 HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen)));
1360 }
1361
1362 /* returns one extra with the total area in it */
1363 l = (*xin_areas)[0].x;
1364 t = (*xin_areas)[0].y;
1365 r = (*xin_areas)[0].x + (*xin_areas)[0].width - 1;
1366 b = (*xin_areas)[0].y + (*xin_areas)[0].height - 1;
1367 for (i = 1; i < *nxin; ++i) {
1368 l = MIN(l, (*xin_areas)[i].x);
1369 t = MIN(l, (*xin_areas)[i].y);
1370 r = MAX(r, (*xin_areas)[i].x + (*xin_areas)[i].width - 1);
1371 b = MAX(b, (*xin_areas)[i].y + (*xin_areas)[i].height - 1);
1372 }
1373 RECT_SET((*xin_areas)[*nxin], l, t, r - l + 1, b - t + 1);
1374 }
1375
1376 void screen_update_areas(void)
1377 {
1378 guint i;
1379 gulong *dims;
1380 GList *it, *onscreen;
1381
1382 /* collect the clients that are on screen */
1383 onscreen = NULL;
1384 for (it = client_list; it; it = g_list_next(it)) {
1385 if (client_monitor(it->data) != screen_num_monitors)
1386 onscreen = g_list_prepend(onscreen, it->data);
1387 }
1388
1389 g_free(monitor_area);
1390 get_xinerama_screens(&monitor_area, &screen_num_monitors);
1391
1392 /* set up the user-specified margins */
1393 config_margins.top_start = RECT_LEFT(monitor_area[screen_num_monitors]);
1394 config_margins.top_end = RECT_RIGHT(monitor_area[screen_num_monitors]);
1395 config_margins.bottom_start = RECT_LEFT(monitor_area[screen_num_monitors]);
1396 config_margins.bottom_end = RECT_RIGHT(monitor_area[screen_num_monitors]);
1397 config_margins.left_start = RECT_TOP(monitor_area[screen_num_monitors]);
1398 config_margins.left_end = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1399 config_margins.right_start = RECT_TOP(monitor_area[screen_num_monitors]);
1400 config_margins.right_end = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1401
1402 RESET_STRUT_LIST(struts_left);
1403 RESET_STRUT_LIST(struts_top);
1404 RESET_STRUT_LIST(struts_right);
1405 RESET_STRUT_LIST(struts_bottom);
1406
1407 /* collect the struts */
1408 for (it = client_list; it; it = g_list_next(it)) {
1409 ObClient *c = it->data;
1410 if (c->strut.left)
1411 ADD_STRUT_TO_LIST(struts_left, c->desktop, &c->strut);
1412 if (c->strut.top)
1413 ADD_STRUT_TO_LIST(struts_top, c->desktop, &c->strut);
1414 if (c->strut.right)
1415 ADD_STRUT_TO_LIST(struts_right, c->desktop, &c->strut);
1416 if (c->strut.bottom)
1417 ADD_STRUT_TO_LIST(struts_bottom, c->desktop, &c->strut);
1418 }
1419 if (dock_strut.left)
1420 ADD_STRUT_TO_LIST(struts_left, DESKTOP_ALL, &dock_strut);
1421 if (dock_strut.top)
1422 ADD_STRUT_TO_LIST(struts_top, DESKTOP_ALL, &dock_strut);
1423 if (dock_strut.right)
1424 ADD_STRUT_TO_LIST(struts_right, DESKTOP_ALL, &dock_strut);
1425 if (dock_strut.bottom)
1426 ADD_STRUT_TO_LIST(struts_bottom, DESKTOP_ALL, &dock_strut);
1427
1428 if (config_margins.left)
1429 ADD_STRUT_TO_LIST(struts_left, DESKTOP_ALL, &config_margins);
1430 if (config_margins.top)
1431 ADD_STRUT_TO_LIST(struts_top, DESKTOP_ALL, &config_margins);
1432 if (config_margins.right)
1433 ADD_STRUT_TO_LIST(struts_right, DESKTOP_ALL, &config_margins);
1434 if (config_margins.bottom)
1435 ADD_STRUT_TO_LIST(struts_bottom, DESKTOP_ALL, &config_margins);
1436
1437 VALIDATE_STRUTS(struts_left, left,
1438 monitor_area[screen_num_monitors].width / 2);
1439 VALIDATE_STRUTS(struts_right, right,
1440 monitor_area[screen_num_monitors].width / 2);
1441 VALIDATE_STRUTS(struts_top, top,
1442 monitor_area[screen_num_monitors].height / 2);
1443 VALIDATE_STRUTS(struts_bottom, bottom,
1444 monitor_area[screen_num_monitors].height / 2);
1445
1446 dims = g_new(gulong, 4 * screen_num_desktops);
1447 for (i = 0; i < screen_num_desktops; ++i) {
1448 Rect *area = screen_area(i, SCREEN_AREA_ALL_MONITORS, NULL);
1449 dims[i*4+0] = area->x;
1450 dims[i*4+1] = area->y;
1451 dims[i*4+2] = area->width;
1452 dims[i*4+3] = area->height;
1453 g_slice_free(Rect, area);
1454 }
1455
1456 /* set the legacy workarea hint to the union of all the monitors */
1457 OBT_PROP_SETA32(obt_root(ob_screen), NET_WORKAREA, CARDINAL,
1458 dims, 4 * screen_num_desktops);
1459
1460 /* the area has changed, adjust all the windows if they need it */
1461 for (it = onscreen; it; it = g_list_next(it)) {
1462 client_move_onscreen(it->data, FALSE);
1463 client_reconfigure(it->data, FALSE);
1464 }
1465
1466 g_free(dims);
1467 }
1468
1469 #if 0
1470 Rect* screen_area_all_monitors(guint desktop)
1471 {
1472 guint i;
1473 Rect *a;
1474
1475 a = screen_area_monitor(desktop, 0);
1476
1477 /* combine all the monitors together */
1478 for (i = 1; i < screen_num_monitors; ++i) {
1479 Rect *m = screen_area_monitor(desktop, i);
1480 gint l, r, t, b;
1481
1482 l = MIN(RECT_LEFT(*a), RECT_LEFT(*m));
1483 t = MIN(RECT_TOP(*a), RECT_TOP(*m));
1484 r = MAX(RECT_RIGHT(*a), RECT_RIGHT(*m));
1485 b = MAX(RECT_BOTTOM(*a), RECT_BOTTOM(*m));
1486
1487 RECT_SET(*a, l, t, r - l + 1, b - t + 1);
1488
1489 g_free(m);
1490 }
1491
1492 return a;
1493 }
1494 #endif
1495
1496 #define STRUT_LEFT_IN_SEARCH(s, search) \
1497 (RANGES_INTERSECT(search->y, search->height, \
1498 s->left_start, s->left_end - s->left_start + 1))
1499 #define STRUT_RIGHT_IN_SEARCH(s, search) \
1500 (RANGES_INTERSECT(search->y, search->height, \
1501 s->right_start, s->right_end - s->right_start + 1))
1502 #define STRUT_TOP_IN_SEARCH(s, search) \
1503 (RANGES_INTERSECT(search->x, search->width, \
1504 s->top_start, s->top_end - s->top_start + 1))
1505 #define STRUT_BOTTOM_IN_SEARCH(s, search) \
1506 (RANGES_INTERSECT(search->x, search->width, \
1507 s->bottom_start, s->bottom_end - s->bottom_start + 1))
1508
1509 #define STRUT_LEFT_IGNORE(s, us, search) \
1510 (head == SCREEN_AREA_ALL_MONITORS && us && \
1511 RECT_LEFT(monitor_area[i]) + s->left > RECT_LEFT(*search))
1512 #define STRUT_RIGHT_IGNORE(s, us, search) \
1513 (head == SCREEN_AREA_ALL_MONITORS && us && \
1514 RECT_RIGHT(monitor_area[i]) - s->right < RECT_RIGHT(*search))
1515 #define STRUT_TOP_IGNORE(s, us, search) \
1516 (head == SCREEN_AREA_ALL_MONITORS && us && \
1517 RECT_TOP(monitor_area[i]) + s->top > RECT_TOP(*search))
1518 #define STRUT_BOTTOM_IGNORE(s, us, search) \
1519 (head == SCREEN_AREA_ALL_MONITORS && us && \
1520 RECT_BOTTOM(monitor_area[i]) - s->bottom < RECT_BOTTOM(*search))
1521
1522 Rect* screen_area(guint desktop, guint head, Rect *search)
1523 {
1524 Rect *a;
1525 GSList *it;
1526 gint l, r, t, b;
1527 guint i, d;
1528 gboolean us = search != NULL; /* user provided search */
1529
1530 g_assert(desktop < screen_num_desktops || desktop == DESKTOP_ALL);
1531 g_assert(head < screen_num_monitors || head == SCREEN_AREA_ONE_MONITOR ||
1532 head == SCREEN_AREA_ALL_MONITORS);
1533 g_assert(!(head == SCREEN_AREA_ONE_MONITOR && search == NULL));
1534
1535 /* find any struts for this monitor
1536 which will be affecting the search area.
1537 */
1538
1539 /* search everything if search is null */
1540 if (!search) {
1541 if (head < screen_num_monitors) search = &monitor_area[head];
1542 else search = &monitor_area[screen_num_monitors];
1543 }
1544 if (head == SCREEN_AREA_ONE_MONITOR) head = screen_find_monitor(search);
1545
1546 /* al is "all left" meaning the furthest left you can get, l is our
1547 "working left" meaning our current strut edge which we're calculating
1548 */
1549
1550 /* only include monitors which the search area lines up with */
1551 if (RECT_INTERSECTS_RECT(monitor_area[screen_num_monitors], *search)) {
1552 l = RECT_RIGHT(monitor_area[screen_num_monitors]);
1553 t = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1554 r = RECT_LEFT(monitor_area[screen_num_monitors]);
1555 b = RECT_TOP(monitor_area[screen_num_monitors]);
1556 for (i = 0; i < screen_num_monitors; ++i) {
1557 /* add the monitor if applicable */
1558 if (RANGES_INTERSECT(search->x, search->width,
1559 monitor_area[i].x, monitor_area[i].width))
1560 {
1561 t = MIN(t, RECT_TOP(monitor_area[i]));
1562 b = MAX(b, RECT_BOTTOM(monitor_area[i]));
1563 }
1564 if (RANGES_INTERSECT(search->y, search->height,
1565 monitor_area[i].y, monitor_area[i].height))
1566 {
1567 l = MIN(l, RECT_LEFT(monitor_area[i]));
1568 r = MAX(r, RECT_RIGHT(monitor_area[i]));
1569 }
1570 }
1571 } else {
1572 l = RECT_LEFT(monitor_area[screen_num_monitors]);
1573 t = RECT_TOP(monitor_area[screen_num_monitors]);
1574 r = RECT_RIGHT(monitor_area[screen_num_monitors]);
1575 b = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1576 }
1577
1578 for (d = 0; d < screen_num_desktops; ++d) {
1579 if (d != desktop && desktop != DESKTOP_ALL) continue;
1580
1581 for (i = 0; i < screen_num_monitors; ++i) {
1582 if (head != SCREEN_AREA_ALL_MONITORS && head != i) continue;
1583
1584 for (it = struts_left; it; it = g_slist_next(it)) {
1585 ObScreenStrut *s = it->data;
1586 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1587 STRUT_LEFT_IN_SEARCH(s->strut, search) &&
1588 !STRUT_LEFT_IGNORE(s->strut, us, search))
1589 l = MAX(l, RECT_LEFT(monitor_area[screen_num_monitors])
1590 + s->strut->left);
1591 }
1592 for (it = struts_top; it; it = g_slist_next(it)) {
1593 ObScreenStrut *s = it->data;
1594 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1595 STRUT_TOP_IN_SEARCH(s->strut, search) &&
1596 !STRUT_TOP_IGNORE(s->strut, us, search))
1597 t = MAX(t, RECT_TOP(monitor_area[screen_num_monitors])
1598 + s->strut->top);
1599 }
1600 for (it = struts_right; it; it = g_slist_next(it)) {
1601 ObScreenStrut *s = it->data;
1602 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1603 STRUT_RIGHT_IN_SEARCH(s->strut, search) &&
1604 !STRUT_RIGHT_IGNORE(s->strut, us, search))
1605 r = MIN(r, RECT_RIGHT(monitor_area[screen_num_monitors])
1606 - s->strut->right);
1607 }
1608 for (it = struts_bottom; it; it = g_slist_next(it)) {
1609 ObScreenStrut *s = it->data;
1610 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1611 STRUT_BOTTOM_IN_SEARCH(s->strut, search) &&
1612 !STRUT_BOTTOM_IGNORE(s->strut, us, search))
1613 b = MIN(b, RECT_BOTTOM(monitor_area[screen_num_monitors])
1614 - s->strut->bottom);
1615 }
1616
1617 /* limit to this monitor */
1618 if (head == i) {
1619 l = MAX(l, RECT_LEFT(monitor_area[i]));
1620 t = MAX(t, RECT_TOP(monitor_area[i]));
1621 r = MIN(r, RECT_RIGHT(monitor_area[i]));
1622 b = MIN(b, RECT_BOTTOM(monitor_area[i]));
1623 }
1624 }
1625 }
1626
1627 a = g_slice_new(Rect);
1628 a->x = l;
1629 a->y = t;
1630 a->width = r - l + 1;
1631 a->height = b - t + 1;
1632 return a;
1633 }
1634
1635 guint screen_find_monitor(const Rect *search)
1636 {
1637 guint i;
1638 guint most = screen_num_monitors;
1639 guint mostv = 0;
1640
1641 for (i = 0; i < screen_num_monitors; ++i) {
1642 const Rect *area = screen_physical_area_monitor(i);
1643 if (RECT_INTERSECTS_RECT(*area, *search)) {
1644 Rect r;
1645 guint v;
1646
1647 RECT_SET_INTERSECTION(r, *area, *search);
1648 v = r.width * r.height;
1649
1650 if (v > mostv) {
1651 mostv = v;
1652 most = i;
1653 }
1654 }
1655 }
1656 return most;
1657 }
1658
1659 const Rect* screen_physical_area_all_monitors(void)
1660 {
1661 return screen_physical_area_monitor(screen_num_monitors);
1662 }
1663
1664 const Rect* screen_physical_area_monitor(guint head)
1665 {
1666 g_assert(head <= screen_num_monitors);
1667
1668 return &monitor_area[head];
1669 }
1670
1671 gboolean screen_physical_area_monitor_contains(guint head, Rect *search)
1672 {
1673 g_assert(head <= screen_num_monitors);
1674 g_assert(search);
1675 return RECT_INTERSECTS_RECT(monitor_area[head], *search);
1676 }
1677
1678 guint screen_monitor_active(void)
1679 {
1680 if (moveresize_client)
1681 return client_monitor(moveresize_client);
1682 else if (focus_client)
1683 return client_monitor(focus_client);
1684 else
1685 return screen_monitor_pointer();
1686 }
1687
1688 const Rect* screen_physical_area_active(void)
1689 {
1690 return screen_physical_area_monitor(screen_monitor_active());
1691 }
1692
1693 guint screen_monitor_primary(gboolean fixed)
1694 {
1695 if (config_primary_monitor_index > 0) {
1696 if (config_primary_monitor_index-1 < screen_num_monitors)
1697 return config_primary_monitor_index - 1;
1698 else
1699 return 0;
1700 }
1701 else if (fixed)
1702 return 0;
1703 else if (config_primary_monitor == OB_PLACE_MONITOR_ACTIVE)
1704 return screen_monitor_active();
1705 else /* config_primary_monitor == OB_PLACE_MONITOR_MOUSE */
1706 return screen_monitor_pointer();
1707 }
1708
1709 const Rect* screen_physical_area_primary(gboolean fixed)
1710 {
1711 return screen_physical_area_monitor(screen_monitor_primary(fixed));
1712 }
1713
1714 void screen_set_root_cursor(void)
1715 {
1716 if (sn_app_starting())
1717 XDefineCursor(obt_display, obt_root(ob_screen),
1718 ob_cursor(OB_CURSOR_BUSYPOINTER));
1719 else
1720 XDefineCursor(obt_display, obt_root(ob_screen),
1721 ob_cursor(OB_CURSOR_POINTER));
1722 }
1723
1724 guint screen_find_monitor_point(guint x, guint y)
1725 {
1726 Rect mon;
1727 RECT_SET(mon, x, y, 1, 1);
1728 return screen_find_monitor(&mon);
1729 }
1730
1731 guint screen_monitor_pointer()
1732 {
1733 gint x, y;
1734 if (!screen_pointer_pos(&x, &y))
1735 x = y = 0;
1736 return screen_find_monitor_point(x, y);
1737 }
1738
1739 gboolean screen_pointer_pos(gint *x, gint *y)
1740 {
1741 Window w;
1742 gint i;
1743 guint u;
1744 gboolean ret;
1745
1746 ret = !!XQueryPointer(obt_display, obt_root(ob_screen),
1747 &w, &w, x, y, &i, &i, &u);
1748 if (!ret) {
1749 for (i = 0; i < ScreenCount(obt_display); ++i)
1750 if (i != ob_screen)
1751 if (XQueryPointer(obt_display, obt_root(i),
1752 &w, &w, x, y, &i, &i, &u))
1753 break;
1754 }
1755 return ret;
1756 }
my patches for the openbox window manager
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