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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/prop.h"
40 #include "obt/mainloop.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 /*! An array of desktops, holding an array of areas per monitor */
74 static Rect *monitor_area = NULL;
75 /*! An array of desktops, holding an array of struts */
76 static GSList *struts_top = NULL;
77 static GSList *struts_left = NULL;
78 static GSList *struts_right = NULL;
79 static GSList *struts_bottom = NULL;
80
81 static ObPagerPopup *desktop_popup;
82 static gboolean desktop_popup_perm;
83
84 /*! The number of microseconds that you need to be on a desktop before it will
85 replace the remembered "last desktop" */
86 #define REMEMBER_LAST_DESKTOP_TIME 750000
87
88 static gboolean replace_wm(void)
89 {
90 gchar *wm_sn;
91 Atom wm_sn_atom;
92 Window current_wm_sn_owner;
93 Time timestamp;
94
95 wm_sn = g_strdup_printf("WM_S%d", ob_screen);
96 wm_sn_atom = XInternAtom(obt_display, wm_sn, FALSE);
97 g_free(wm_sn);
98
99 current_wm_sn_owner = XGetSelectionOwner(obt_display, wm_sn_atom);
100 if (current_wm_sn_owner == screen_support_win)
101 current_wm_sn_owner = None;
102 if (current_wm_sn_owner) {
103 if (!ob_replace_wm) {
104 g_message(_("A window manager is already running on screen %d"),
105 ob_screen);
106 return FALSE;
107 }
108 obt_display_ignore_errors(TRUE);
109
110 /* We want to find out when the current selection owner dies */
111 XSelectInput(obt_display, current_wm_sn_owner, StructureNotifyMask);
112 XSync(obt_display, FALSE);
113
114 obt_display_ignore_errors(FALSE);
115 if (obt_display_error_occured)
116 current_wm_sn_owner = None;
117 }
118
119 timestamp = event_time();
120
121 XSetSelectionOwner(obt_display, wm_sn_atom, screen_support_win,
122 timestamp);
123
124 if (XGetSelectionOwner(obt_display, wm_sn_atom) != screen_support_win) {
125 g_message(_("Could not acquire window manager selection on screen %d"),
126 ob_screen);
127 return FALSE;
128 }
129
130 /* Wait for old window manager to go away */
131 if (current_wm_sn_owner) {
132 XEvent event;
133 gulong wait = 0;
134 const gulong timeout = G_USEC_PER_SEC * 15; /* wait for 15s max */
135
136 while (wait < timeout) {
137 if (XCheckWindowEvent(obt_display, current_wm_sn_owner,
138 StructureNotifyMask, &event) &&
139 event.type == DestroyNotify)
140 break;
141 g_usleep(G_USEC_PER_SEC / 10);
142 wait += G_USEC_PER_SEC / 10;
143 }
144
145 if (wait >= timeout) {
146 g_message(_("The WM on screen %d is not exiting"), ob_screen);
147 return FALSE;
148 }
149 }
150
151 /* Send client message indicating that we are now the WM */
152 obt_prop_message(ob_screen, obt_root(ob_screen), OBT_PROP_ATOM(MANAGER),
153 timestamp, wm_sn_atom, screen_support_win, 0, 0,
154 SubstructureNotifyMask);
155
156 return TRUE;
157 }
158
159 gboolean screen_annex(void)
160 {
161 XSetWindowAttributes attrib;
162 pid_t pid;
163 gint i, num_support;
164 gulong *supported;
165
166 /* create the netwm support window */
167 attrib.override_redirect = TRUE;
168 attrib.event_mask = PropertyChangeMask;
169 screen_support_win = XCreateWindow(obt_display, obt_root(ob_screen),
170 -100, -100, 1, 1, 0,
171 CopyFromParent, InputOutput,
172 CopyFromParent,
173 CWEventMask | CWOverrideRedirect,
174 &attrib);
175 XMapWindow(obt_display, screen_support_win);
176 XLowerWindow(obt_display, screen_support_win);
177
178 if (!replace_wm()) {
179 XDestroyWindow(obt_display, screen_support_win);
180 return FALSE;
181 }
182
183 obt_display_ignore_errors(TRUE);
184 XSelectInput(obt_display, obt_root(ob_screen), ROOT_EVENTMASK);
185 obt_display_ignore_errors(FALSE);
186 if (obt_display_error_occured) {
187 g_message(_("A window manager is already running on screen %d"),
188 ob_screen);
189
190 XDestroyWindow(obt_display, screen_support_win);
191 return FALSE;
192 }
193
194 screen_set_root_cursor();
195
196 /* set the OPENBOX_PID hint */
197 pid = getpid();
198 OBT_PROP_SET32(obt_root(ob_screen), OPENBOX_PID, CARDINAL, pid);
199
200 /* set supporting window */
201 OBT_PROP_SET32(obt_root(ob_screen),
202 NET_SUPPORTING_WM_CHECK, WINDOW, screen_support_win);
203
204 /* set properties on the supporting window */
205 OBT_PROP_SETS(screen_support_win, NET_WM_NAME, utf8, "Openbox");
206 OBT_PROP_SET32(screen_support_win, NET_SUPPORTING_WM_CHECK,
207 WINDOW, screen_support_win);
208
209 /* set the _NET_SUPPORTED_ATOMS hint */
210
211 /* this is all the atoms after NET_SUPPORTED in the ObtPropAtoms enum */
212 num_support = OBT_PROP_NUM_ATOMS - OBT_PROP_NET_SUPPORTED - 1;
213 i = 0;
214 supported = g_new(gulong, num_support);
215 supported[i++] = OBT_PROP_ATOM(NET_SUPPORTING_WM_CHECK);
216 supported[i++] = OBT_PROP_ATOM(NET_WM_FULL_PLACEMENT);
217 supported[i++] = OBT_PROP_ATOM(NET_CURRENT_DESKTOP);
218 supported[i++] = OBT_PROP_ATOM(NET_NUMBER_OF_DESKTOPS);
219 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_GEOMETRY);
220 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_VIEWPORT);
221 supported[i++] = OBT_PROP_ATOM(NET_ACTIVE_WINDOW);
222 supported[i++] = OBT_PROP_ATOM(NET_WORKAREA);
223 supported[i++] = OBT_PROP_ATOM(NET_CLIENT_LIST);
224 supported[i++] = OBT_PROP_ATOM(NET_CLIENT_LIST_STACKING);
225 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_NAMES);
226 supported[i++] = OBT_PROP_ATOM(NET_CLOSE_WINDOW);
227 supported[i++] = OBT_PROP_ATOM(NET_DESKTOP_LAYOUT);
228 supported[i++] = OBT_PROP_ATOM(NET_SHOWING_DESKTOP);
229 supported[i++] = OBT_PROP_ATOM(NET_WM_NAME);
230 supported[i++] = OBT_PROP_ATOM(NET_WM_VISIBLE_NAME);
231 supported[i++] = OBT_PROP_ATOM(NET_WM_ICON_NAME);
232 supported[i++] = OBT_PROP_ATOM(NET_WM_VISIBLE_ICON_NAME);
233 supported[i++] = OBT_PROP_ATOM(NET_WM_DESKTOP);
234 supported[i++] = OBT_PROP_ATOM(NET_WM_STRUT);
235 supported[i++] = OBT_PROP_ATOM(NET_WM_STRUT_PARTIAL);
236 supported[i++] = OBT_PROP_ATOM(NET_WM_ICON);
237 supported[i++] = OBT_PROP_ATOM(NET_WM_ICON_GEOMETRY);
238 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE);
239 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DESKTOP);
240 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DOCK);
241 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_TOOLBAR);
242 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_MENU);
243 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_UTILITY);
244 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_SPLASH);
245 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG);
246 supported[i++] = OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_NORMAL);
247 supported[i++] = OBT_PROP_ATOM(NET_WM_ALLOWED_ACTIONS);
248 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MOVE);
249 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_RESIZE);
250 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MINIMIZE);
251 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_SHADE);
252 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_HORZ);
253 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_VERT);
254 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_FULLSCREEN);
255 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_CHANGE_DESKTOP);
256 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_CLOSE);
257 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_ABOVE);
258 supported[i++] = OBT_PROP_ATOM(NET_WM_ACTION_BELOW);
259 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE);
260 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_MODAL);
261 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT);
262 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ);
263 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_SHADED);
264 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR);
265 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER);
266 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_HIDDEN);
267 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN);
268 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_ABOVE);
269 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_BELOW);
270 supported[i++] = OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION);
271 supported[i++] = OBT_PROP_ATOM(NET_MOVERESIZE_WINDOW);
272 supported[i++] = OBT_PROP_ATOM(NET_WM_MOVERESIZE);
273 supported[i++] = OBT_PROP_ATOM(NET_WM_USER_TIME);
274 /*
275 supported[i++] = OBT_PROP_ATOM(NET_WM_USER_TIME_WINDOW);
276 */
277 supported[i++] = OBT_PROP_ATOM(NET_FRAME_EXTENTS);
278 supported[i++] = OBT_PROP_ATOM(NET_REQUEST_FRAME_EXTENTS);
279 supported[i++] = OBT_PROP_ATOM(NET_RESTACK_WINDOW);
280 supported[i++] = OBT_PROP_ATOM(NET_STARTUP_ID);
281 #ifdef SYNC
282 supported[i++] = OBT_PROP_ATOM(NET_WM_SYNC_REQUEST);
283 supported[i++] = OBT_PROP_ATOM(NET_WM_SYNC_REQUEST_COUNTER);
284 #endif
285 supported[i++] = OBT_PROP_ATOM(NET_WM_PID);
286 supported[i++] = OBT_PROP_ATOM(NET_WM_PING);
287
288 supported[i++] = OBT_PROP_ATOM(KDE_WM_CHANGE_STATE);
289 supported[i++] = OBT_PROP_ATOM(KDE_NET_WM_FRAME_STRUT);
290 supported[i++] = OBT_PROP_ATOM(KDE_NET_WM_WINDOW_TYPE_OVERRIDE);
291
292 supported[i++] = OBT_PROP_ATOM(OB_WM_ACTION_UNDECORATE);
293 supported[i++] = OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED);
294 supported[i++] = OBT_PROP_ATOM(OPENBOX_PID);
295 supported[i++] = OBT_PROP_ATOM(OB_THEME);
296 supported[i++] = OBT_PROP_ATOM(OB_CONFIG_FILE);
297 supported[i++] = OBT_PROP_ATOM(OB_CONTROL);
298 supported[i++] = OBT_PROP_ATOM(OB_VERSION);
299 supported[i++] = OBT_PROP_ATOM(OB_APP_ROLE);
300 supported[i++] = OBT_PROP_ATOM(OB_APP_TITLE);
301 supported[i++] = OBT_PROP_ATOM(OB_APP_NAME);
302 supported[i++] = OBT_PROP_ATOM(OB_APP_CLASS);
303 supported[i++] = OBT_PROP_ATOM(OB_APP_TYPE);
304 g_assert(i == num_support);
305
306 OBT_PROP_SETA32(obt_root(ob_screen),
307 NET_SUPPORTED, ATOM, supported, num_support);
308 g_free(supported);
309
310 OBT_PROP_SETS(RootWindow(obt_display, ob_screen), OB_VERSION, utf8,
311 OPENBOX_VERSION);
312
313 screen_tell_ksplash();
314
315 return TRUE;
316 }
317
318 static void screen_tell_ksplash(void)
319 {
320 XEvent e;
321 char **argv;
322
323 argv = g_new(gchar*, 6);
324 argv[0] = g_strdup("dcop");
325 argv[1] = g_strdup("ksplash");
326 argv[2] = g_strdup("ksplash");
327 argv[3] = g_strdup("upAndRunning(QString)");
328 argv[4] = g_strdup("wm started");
329 argv[5] = NULL;
330
331 /* tell ksplash through the dcop server command line interface */
332 g_spawn_async(NULL, argv, NULL,
333 G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD |
334 G_SPAWN_STDERR_TO_DEV_NULL | G_SPAWN_STDOUT_TO_DEV_NULL,
335 NULL, NULL, NULL, NULL);
336 g_strfreev(argv);
337
338 /* i'm not sure why we do this, kwin does it, but ksplash doesn't seem to
339 hear it anyways. perhaps it is for old ksplash. or new ksplash. or
340 something. oh well. */
341 e.xclient.type = ClientMessage;
342 e.xclient.display = obt_display;
343 e.xclient.window = obt_root(ob_screen);
344 e.xclient.message_type =
345 XInternAtom(obt_display, "_KDE_SPLASH_PROGRESS", False);
346 e.xclient.format = 8;
347 strcpy(e.xclient.data.b, "wm started");
348 XSendEvent(obt_display, obt_root(ob_screen),
349 False, SubstructureNotifyMask, &e);
350 }
351
352 void screen_startup(gboolean reconfig)
353 {
354 gchar **names = NULL;
355 guint32 d;
356 gboolean namesexist = FALSE;
357
358 desktop_popup = pager_popup_new();
359 desktop_popup_perm = FALSE;
360 pager_popup_height(desktop_popup, POPUP_HEIGHT);
361
362 if (reconfig) {
363 /* update the pager popup's width */
364 pager_popup_text_width_to_strings(desktop_popup,
365 screen_desktop_names,
366 screen_num_desktops);
367 return;
368 }
369
370 /* get the initial size */
371 screen_resize();
372
373 /* have names already been set for the desktops? */
374 if (OBT_PROP_GETSS(obt_root(ob_screen), NET_DESKTOP_NAMES, utf8, &names)) {
375 g_strfreev(names);
376 namesexist = TRUE;
377 }
378
379 /* if names don't exist and we have session names, set those.
380 do this stuff BEFORE setting the number of desktops, because that
381 will create default names for them
382 */
383 if (!namesexist && session_desktop_names != NULL) {
384 guint i, numnames;
385 GSList *it;
386
387 /* get the desktop names */
388 numnames = g_slist_length(session_desktop_names);
389 names = g_new(gchar*, numnames + 1);
390 names[numnames] = NULL;
391 for (i = 0, it = session_desktop_names; it; ++i, it = g_slist_next(it))
392 names[i] = g_strdup(it->data);
393
394 /* set the root window property */
395 OBT_PROP_SETSS(obt_root(ob_screen),
396 NET_DESKTOP_NAMES, utf8, (const gchar**)names);
397
398 g_strfreev(names);
399 }
400
401 /* set the number of desktops, if it's not already set.
402
403 this will also set the default names from the config file up for
404 desktops that don't have names yet */
405 screen_num_desktops = 0;
406 if (OBT_PROP_GET32(obt_root(ob_screen),
407 NET_NUMBER_OF_DESKTOPS, CARDINAL, &d))
408 {
409 if (d != config_desktops_num) {
410 /* TRANSLATORS: If you need to specify a different order of the
411 arguments, you can use %1$d for the first one and %2$d for the
412 second one. For example,
413 "The current session has %2$d desktops, but Openbox is configured for %1$d ..." */
414 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),
415 config_desktops_num, d);
416 }
417 screen_set_num_desktops(d);
418 }
419 /* restore from session if possible */
420 else if (session_num_desktops)
421 screen_set_num_desktops(session_num_desktops);
422 else
423 screen_set_num_desktops(config_desktops_num);
424
425 screen_desktop = screen_num_desktops; /* something invalid */
426 /* start on the current desktop when a wm was already running */
427 if (OBT_PROP_GET32(obt_root(ob_screen),
428 NET_CURRENT_DESKTOP, CARDINAL, &d) &&
429 d < screen_num_desktops)
430 {
431 screen_set_desktop(d, FALSE);
432 } else if (session_desktop >= 0)
433 screen_set_desktop(MIN((guint)session_desktop,
434 screen_num_desktops), FALSE);
435 else
436 screen_set_desktop(MIN(config_screen_firstdesk,
437 screen_num_desktops) - 1, FALSE);
438 screen_last_desktop = screen_desktop;
439
440 /* don't start in showing-desktop mode */
441 screen_showing_desktop = FALSE;
442 OBT_PROP_SET32(obt_root(ob_screen),
443 NET_SHOWING_DESKTOP, CARDINAL, screen_showing_desktop);
444
445 if (session_desktop_layout_present &&
446 screen_validate_layout(&session_desktop_layout))
447 {
448 screen_desktop_layout = session_desktop_layout;
449 }
450 else
451 screen_update_layout();
452 }
453
454 void screen_shutdown(gboolean reconfig)
455 {
456 pager_popup_free(desktop_popup);
457
458 if (reconfig)
459 return;
460
461 XSelectInput(obt_display, obt_root(ob_screen), NoEventMask);
462
463 /* we're not running here no more! */
464 OBT_PROP_ERASE(obt_root(ob_screen), OPENBOX_PID);
465 /* not without us */
466 OBT_PROP_ERASE(obt_root(ob_screen), NET_SUPPORTED);
467 /* don't keep this mode */
468 OBT_PROP_ERASE(obt_root(ob_screen), NET_SHOWING_DESKTOP);
469
470 XDestroyWindow(obt_display, screen_support_win);
471
472 g_strfreev(screen_desktop_names);
473 screen_desktop_names = NULL;
474 }
475
476 void screen_resize(void)
477 {
478 static gint oldw = 0, oldh = 0;
479 gint w, h;
480 GList *it;
481 gulong geometry[2];
482
483 w = WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen));
484 h = HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen));
485
486 if (w == oldw && h == oldh) return;
487
488 oldw = w; oldh = h;
489
490 /* Set the _NET_DESKTOP_GEOMETRY hint */
491 screen_physical_size.width = geometry[0] = w;
492 screen_physical_size.height = geometry[1] = h;
493 OBT_PROP_SETA32(obt_root(ob_screen),
494 NET_DESKTOP_GEOMETRY, CARDINAL, geometry, 2);
495
496 if (ob_state() != OB_STATE_RUNNING)
497 return;
498
499 screen_update_areas();
500 dock_configure();
501
502 for (it = client_list; it; it = g_list_next(it))
503 client_move_onscreen(it->data, FALSE);
504 }
505
506 void screen_set_num_desktops(guint num)
507 {
508 gulong *viewport;
509 GList *it, *stacking_copy;
510
511 g_assert(num > 0);
512
513 if (screen_num_desktops == num) return;
514
515 screen_num_desktops = num;
516 OBT_PROP_SET32(obt_root(ob_screen), NET_NUMBER_OF_DESKTOPS, CARDINAL, num);
517
518 /* set the viewport hint */
519 viewport = g_new0(gulong, num * 2);
520 OBT_PROP_SETA32(obt_root(ob_screen),
521 NET_DESKTOP_VIEWPORT, CARDINAL, viewport, num * 2);
522 g_free(viewport);
523
524 /* the number of rows/columns will differ */
525 screen_update_layout();
526
527 /* move windows on desktops that will no longer exist!
528 make a copy of the list cuz we're changing it */
529 stacking_copy = g_list_copy(stacking_list);
530 for (it = g_list_last(stacking_copy); it; it = g_list_previous(it)) {
531 if (WINDOW_IS_CLIENT(it->data)) {
532 ObClient *c = it->data;
533 if (c->desktop != DESKTOP_ALL && c->desktop >= num)
534 client_set_desktop(c, num - 1, FALSE, TRUE);
535 /* raise all the windows that are on the current desktop which
536 is being merged */
537 else if (screen_desktop == num - 1 &&
538 (c->desktop == DESKTOP_ALL ||
539 c->desktop == screen_desktop))
540 stacking_raise(CLIENT_AS_WINDOW(c));
541 }
542 }
543 g_list_free(stacking_copy);
544
545 /* change our struts/area to match (after moving windows) */
546 screen_update_areas();
547
548 /* may be some unnamed desktops that we need to fill in with names
549 (after updating the areas so the popup can resize) */
550 screen_update_desktop_names();
551
552 /* change our desktop if we're on one that no longer exists! */
553 if (screen_desktop >= screen_num_desktops)
554 screen_set_desktop(num - 1, TRUE);
555 }
556
557 static void screen_fallback_focus(void)
558 {
559 ObClient *c;
560 gboolean allow_omni;
561
562 /* only allow omnipresent windows to get focus on desktop change if
563 an omnipresent window is already focused (it'll keep focus probably, but
564 maybe not depending on mouse-focus options) */
565 allow_omni = focus_client && (client_normal(focus_client) &&
566 focus_client->desktop == DESKTOP_ALL);
567
568 /* the client moved there already so don't move focus. prevent flicker
569 on sendtodesktop + follow */
570 if (focus_client && focus_client->desktop == screen_desktop)
571 return;
572
573 /* have to try focus here because when you leave an empty desktop
574 there is no focus out to watch for. also, we have different rules
575 here. we always allow it to look under the mouse pointer if
576 config_focus_last is FALSE
577
578 do this before hiding the windows so if helper windows are coming
579 with us, they don't get hidden
580 */
581 if ((c = focus_fallback(TRUE, !config_focus_last, allow_omni,
582 !allow_omni)))
583 {
584 /* only do the flicker reducing stuff ahead of time if we are going
585 to call xsetinputfocus on the window ourselves. otherwise there is
586 no guarantee the window will actually take focus.. */
587 if (c->can_focus) {
588 /* reduce flicker by hiliting now rather than waiting for the
589 server FocusIn event */
590 frame_adjust_focus(c->frame, TRUE);
591 /* do this here so that if you switch desktops to a window with
592 helper windows then the helper windows won't flash */
593 client_bring_helper_windows(c);
594 }
595 }
596 }
597
598 static gboolean last_desktop_func(gpointer data)
599 {
600 screen_desktop_timeout = TRUE;
601 return FALSE;
602 }
603
604 void screen_set_desktop(guint num, gboolean dofocus)
605 {
606 GList *it;
607 guint previous;
608 gulong ignore_start;
609
610 g_assert(num < screen_num_desktops);
611
612 previous = screen_desktop;
613 screen_desktop = num;
614
615 if (previous == num) return;
616
617 OBT_PROP_SET32(obt_root(ob_screen), NET_CURRENT_DESKTOP, CARDINAL, num);
618
619 /* This whole thing decides when/how to save the screen_last_desktop so
620 that it can be restored later if you want */
621 if (screen_desktop_timeout) {
622 /* If screen_desktop_timeout is true, then we've been on this desktop
623 long enough and we can save it as the last desktop. */
624
625 if (screen_last_desktop == previous)
626 /* this is the startup state only */
627 screen_old_desktop = screen_desktop;
628 else {
629 /* save the "last desktop" as the "old desktop" */
630 screen_old_desktop = screen_last_desktop;
631 /* save the desktop we're coming from as the "last desktop" */
632 screen_last_desktop = previous;
633 }
634 }
635 else {
636 /* If screen_desktop_timeout is false, then we just got to this desktop
637 and we are moving away again. */
638
639 if (screen_desktop == screen_last_desktop) {
640 /* If we are moving to the "last desktop" .. */
641 if (previous == screen_old_desktop) {
642 /* .. from the "old desktop", change the last desktop to
643 be where we are coming from */
644 screen_last_desktop = screen_old_desktop;
645 }
646 else if (screen_last_desktop == screen_old_desktop) {
647 /* .. and also to the "old desktop", change the "last
648 desktop" to be where we are coming from */
649 screen_last_desktop = previous;
650 }
651 else {
652 /* .. from some other desktop, then set the "last desktop" to
653 be the saved "old desktop", i.e. where we were before the
654 "last desktop" */
655 screen_last_desktop = screen_old_desktop;
656 }
657 }
658 else {
659 /* If we are moving to any desktop besides the "last desktop"..
660 (this is the normal case) */
661 if (screen_desktop == screen_old_desktop) {
662 /* If moving to the "old desktop", which is not the
663 "last desktop", don't save anything */
664 }
665 else if (previous == screen_old_desktop) {
666 /* If moving from the "old desktop", and not to the
667 "last desktop", don't save anything */
668 }
669 else if (screen_last_desktop == screen_old_desktop) {
670 /* If the "last desktop" is the same as "old desktop" and
671 you're not moving to the "last desktop" then save where
672 we're coming from as the "last desktop" */
673 screen_last_desktop = previous;
674 }
675 else {
676 /* If the "last desktop" is different from the "old desktop"
677 and you're not moving to the "last desktop", then don't save
678 anything */
679 }
680 }
681 }
682 screen_desktop_timeout = FALSE;
683 obt_main_loop_timeout_remove(ob_main_loop, last_desktop_func);
684 obt_main_loop_timeout_add(ob_main_loop, REMEMBER_LAST_DESKTOP_TIME,
685 last_desktop_func, NULL, NULL, NULL);
686
687 ob_debug("Moving to desktop %d", num+1);
688
689 if (ob_state() == OB_STATE_RUNNING)
690 screen_show_desktop_popup(screen_desktop, FALSE);
691
692 /* ignore enter events caused by the move */
693 ignore_start = event_start_ignore_all_enters();
694
695 if (moveresize_client)
696 client_set_desktop(moveresize_client, num, TRUE, FALSE);
697
698 /* show windows before hiding the rest to lessen the enter/leave events */
699
700 /* show windows from top to bottom */
701 for (it = stacking_list; it; it = g_list_next(it)) {
702 if (WINDOW_IS_CLIENT(it->data)) {
703 ObClient *c = it->data;
704 client_show(c);
705 }
706 }
707
708 if (dofocus) screen_fallback_focus();
709
710 /* hide windows from bottom to top */
711 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
712 if (WINDOW_IS_CLIENT(it->data)) {
713 ObClient *c = it->data;
714 if (client_hide(c)) {
715 if (c == focus_client) {
716 /* c was focused and we didn't do fallback clearly so make
717 sure openbox doesnt still consider the window focused.
718 this happens when using NextWindow with allDesktops,
719 since it doesnt want to move focus on desktop change,
720 but the focus is not going to stay with the current
721 window, which has now disappeared.
722 only do this if the client was actually hidden,
723 otherwise it can keep focus. */
724 focus_set_client(NULL);
725 }
726 }
727 }
728 }
729
730 focus_cycle_addremove(NULL, TRUE);
731
732 event_end_ignore_all_enters(ignore_start);
733
734 if (event_source_time() != CurrentTime)
735 screen_desktop_user_time = event_source_time();
736 }
737
738 void screen_add_desktop(gboolean current)
739 {
740 gulong ignore_start;
741
742 /* ignore enter events caused by this */
743 ignore_start = event_start_ignore_all_enters();
744
745 screen_set_num_desktops(screen_num_desktops+1);
746
747 /* move all the clients over */
748 if (current) {
749 GList *it;
750
751 for (it = client_list; it; it = g_list_next(it)) {
752 ObClient *c = it->data;
753 if (c->desktop != DESKTOP_ALL && c->desktop >= screen_desktop &&
754 /* don't move direct children, they'll be moved with their
755 parent - which will have to be on the same desktop */
756 !client_direct_parent(c))
757 {
758 ob_debug("moving window %s", c->title);
759 client_set_desktop(c, c->desktop+1, FALSE, TRUE);
760 }
761 }
762 }
763
764 event_end_ignore_all_enters(ignore_start);
765 }
766
767 void screen_remove_desktop(gboolean current)
768 {
769 guint rmdesktop, movedesktop;
770 GList *it, *stacking_copy;
771 gulong ignore_start;
772
773 if (screen_num_desktops <= 1) return;
774
775 /* ignore enter events caused by this */
776 ignore_start = event_start_ignore_all_enters();
777
778 /* what desktop are we removing and moving to? */
779 if (current)
780 rmdesktop = screen_desktop;
781 else
782 rmdesktop = screen_num_desktops - 1;
783 if (rmdesktop < screen_num_desktops - 1)
784 movedesktop = rmdesktop + 1;
785 else
786 movedesktop = rmdesktop;
787
788 /* make a copy of the list cuz we're changing it */
789 stacking_copy = g_list_copy(stacking_list);
790 for (it = g_list_last(stacking_copy); it; it = g_list_previous(it)) {
791 if (WINDOW_IS_CLIENT(it->data)) {
792 ObClient *c = it->data;
793 guint d = c->desktop;
794 if (d != DESKTOP_ALL && d >= movedesktop &&
795 /* don't move direct children, they'll be moved with their
796 parent - which will have to be on the same desktop */
797 !client_direct_parent(c))
798 {
799 ob_debug("moving window %s", c->title);
800 client_set_desktop(c, c->desktop - 1, TRUE, TRUE);
801 }
802 /* raise all the windows that are on the current desktop which
803 is being merged */
804 if ((screen_desktop == rmdesktop - 1 ||
805 screen_desktop == rmdesktop) &&
806 (d == DESKTOP_ALL || d == screen_desktop))
807 {
808 stacking_raise(CLIENT_AS_WINDOW(c));
809 ob_debug("raising window %s", c->title);
810 }
811 }
812 }
813 g_list_free(stacking_copy);
814
815 /* fallback focus like we're changing desktops */
816 if (screen_desktop < screen_num_desktops - 1) {
817 screen_fallback_focus();
818 ob_debug("fake desktop change");
819 }
820
821 screen_set_num_desktops(screen_num_desktops-1);
822
823 event_end_ignore_all_enters(ignore_start);
824 }
825
826 static void get_row_col(guint d, guint *r, guint *c)
827 {
828 switch (screen_desktop_layout.orientation) {
829 case OB_ORIENTATION_HORZ:
830 switch (screen_desktop_layout.start_corner) {
831 case OB_CORNER_TOPLEFT:
832 *r = d / screen_desktop_layout.columns;
833 *c = d % screen_desktop_layout.columns;
834 break;
835 case OB_CORNER_BOTTOMLEFT:
836 *r = screen_desktop_layout.rows - 1 -
837 d / screen_desktop_layout.columns;
838 *c = d % screen_desktop_layout.columns;
839 break;
840 case OB_CORNER_TOPRIGHT:
841 *r = d / screen_desktop_layout.columns;
842 *c = screen_desktop_layout.columns - 1 -
843 d % screen_desktop_layout.columns;
844 break;
845 case OB_CORNER_BOTTOMRIGHT:
846 *r = screen_desktop_layout.rows - 1 -
847 d / screen_desktop_layout.columns;
848 *c = screen_desktop_layout.columns - 1 -
849 d % screen_desktop_layout.columns;
850 break;
851 }
852 break;
853 case OB_ORIENTATION_VERT:
854 switch (screen_desktop_layout.start_corner) {
855 case OB_CORNER_TOPLEFT:
856 *r = d % screen_desktop_layout.rows;
857 *c = d / screen_desktop_layout.rows;
858 break;
859 case OB_CORNER_BOTTOMLEFT:
860 *r = screen_desktop_layout.rows - 1 -
861 d % screen_desktop_layout.rows;
862 *c = d / screen_desktop_layout.rows;
863 break;
864 case OB_CORNER_TOPRIGHT:
865 *r = d % screen_desktop_layout.rows;
866 *c = screen_desktop_layout.columns - 1 -
867 d / screen_desktop_layout.rows;
868 break;
869 case OB_CORNER_BOTTOMRIGHT:
870 *r = screen_desktop_layout.rows - 1 -
871 d % screen_desktop_layout.rows;
872 *c = screen_desktop_layout.columns - 1 -
873 d / screen_desktop_layout.rows;
874 break;
875 }
876 break;
877 }
878 }
879
880 static guint translate_row_col(guint r, guint c)
881 {
882 switch (screen_desktop_layout.orientation) {
883 case OB_ORIENTATION_HORZ:
884 switch (screen_desktop_layout.start_corner) {
885 case OB_CORNER_TOPLEFT:
886 return r % screen_desktop_layout.rows *
887 screen_desktop_layout.columns +
888 c % screen_desktop_layout.columns;
889 case OB_CORNER_BOTTOMLEFT:
890 return (screen_desktop_layout.rows - 1 -
891 r % screen_desktop_layout.rows) *
892 screen_desktop_layout.columns +
893 c % screen_desktop_layout.columns;
894 case OB_CORNER_TOPRIGHT:
895 return r % screen_desktop_layout.rows *
896 screen_desktop_layout.columns +
897 (screen_desktop_layout.columns - 1 -
898 c % screen_desktop_layout.columns);
899 case OB_CORNER_BOTTOMRIGHT:
900 return (screen_desktop_layout.rows - 1 -
901 r % screen_desktop_layout.rows) *
902 screen_desktop_layout.columns +
903 (screen_desktop_layout.columns - 1 -
904 c % screen_desktop_layout.columns);
905 }
906 case OB_ORIENTATION_VERT:
907 switch (screen_desktop_layout.start_corner) {
908 case OB_CORNER_TOPLEFT:
909 return c % screen_desktop_layout.columns *
910 screen_desktop_layout.rows +
911 r % screen_desktop_layout.rows;
912 case OB_CORNER_BOTTOMLEFT:
913 return c % screen_desktop_layout.columns *
914 screen_desktop_layout.rows +
915 (screen_desktop_layout.rows - 1 -
916 r % screen_desktop_layout.rows);
917 case OB_CORNER_TOPRIGHT:
918 return (screen_desktop_layout.columns - 1 -
919 c % screen_desktop_layout.columns) *
920 screen_desktop_layout.rows +
921 r % screen_desktop_layout.rows;
922 case OB_CORNER_BOTTOMRIGHT:
923 return (screen_desktop_layout.columns - 1 -
924 c % screen_desktop_layout.columns) *
925 screen_desktop_layout.rows +
926 (screen_desktop_layout.rows - 1 -
927 r % screen_desktop_layout.rows);
928 }
929 }
930 g_assert_not_reached();
931 return 0;
932 }
933
934 static gboolean hide_desktop_popup_func(gpointer data)
935 {
936 pager_popup_hide(desktop_popup);
937 return FALSE; /* don't repeat */
938 }
939
940 void screen_show_desktop_popup(guint d, gboolean perm)
941 {
942 const Rect *a;
943
944 /* 0 means don't show the popup */
945 if (!config_desktop_popup_time) return;
946
947 a = screen_physical_area_primary(FALSE);
948 pager_popup_position(desktop_popup, CenterGravity,
949 a->x + a->width / 2, a->y + a->height / 2);
950 pager_popup_icon_size_multiplier(desktop_popup,
951 (screen_desktop_layout.columns /
952 screen_desktop_layout.rows) / 2,
953 (screen_desktop_layout.rows/
954 screen_desktop_layout.columns) / 2);
955 pager_popup_max_width(desktop_popup,
956 MAX(a->width/3, POPUP_WIDTH));
957 pager_popup_show(desktop_popup, screen_desktop_names[d], d);
958
959 obt_main_loop_timeout_remove(ob_main_loop, hide_desktop_popup_func);
960 if (!perm && !desktop_popup_perm)
961 /* only hide if its not already being show permanently */
962 obt_main_loop_timeout_add(ob_main_loop,
963 config_desktop_popup_time * 1000,
964 hide_desktop_popup_func, desktop_popup,
965 g_direct_equal, NULL);
966 if (perm)
967 desktop_popup_perm = TRUE;
968 }
969
970 void screen_hide_desktop_popup(void)
971 {
972 obt_main_loop_timeout_remove_data(ob_main_loop, hide_desktop_popup_func,
973 desktop_popup, FALSE);
974 pager_popup_hide(desktop_popup);
975 desktop_popup_perm = FALSE;
976 }
977
978 guint screen_find_desktop(guint from, ObDirection dir,
979 gboolean wrap, gboolean linear)
980 {
981 guint r, c;
982 guint d;
983
984 d = from;
985 get_row_col(d, &r, &c);
986 if (linear) {
987 switch (dir) {
988 case OB_DIRECTION_EAST:
989 if (d < screen_num_desktops - 1)
990 ++d;
991 else if (wrap)
992 d = 0;
993 else
994 return from;
995 break;
996 case OB_DIRECTION_WEST:
997 if (d > 0)
998 --d;
999 else if (wrap)
1000 d = screen_num_desktops - 1;
1001 else
1002 return from;
1003 break;
1004 default:
1005 g_assert_not_reached();
1006 return from;
1007 }
1008 } else {
1009 switch (dir) {
1010 case OB_DIRECTION_EAST:
1011 ++c;
1012 if (c >= screen_desktop_layout.columns) {
1013 if (wrap)
1014 c = 0;
1015 else
1016 return from;
1017 }
1018 d = translate_row_col(r, c);
1019 if (d >= screen_num_desktops) {
1020 if (wrap)
1021 ++c;
1022 else
1023 return from;
1024 }
1025 break;
1026 case OB_DIRECTION_WEST:
1027 --c;
1028 if (c >= screen_desktop_layout.columns) {
1029 if (wrap)
1030 c = screen_desktop_layout.columns - 1;
1031 else
1032 return from;
1033 }
1034 d = translate_row_col(r, c);
1035 if (d >= screen_num_desktops) {
1036 if (wrap)
1037 --c;
1038 else
1039 return from;
1040 }
1041 break;
1042 case OB_DIRECTION_SOUTH:
1043 ++r;
1044 if (r >= screen_desktop_layout.rows) {
1045 if (wrap)
1046 r = 0;
1047 else
1048 return from;
1049 }
1050 d = translate_row_col(r, c);
1051 if (d >= screen_num_desktops) {
1052 if (wrap)
1053 ++r;
1054 else
1055 return from;
1056 }
1057 break;
1058 case OB_DIRECTION_NORTH:
1059 --r;
1060 if (r >= screen_desktop_layout.rows) {
1061 if (wrap)
1062 r = screen_desktop_layout.rows - 1;
1063 else
1064 return from;
1065 }
1066 d = translate_row_col(r, c);
1067 if (d >= screen_num_desktops) {
1068 if (wrap)
1069 --r;
1070 else
1071 return from;
1072 }
1073 break;
1074 default:
1075 g_assert_not_reached();
1076 return from;
1077 }
1078
1079 d = translate_row_col(r, c);
1080 }
1081 return d;
1082 }
1083
1084 static gboolean screen_validate_layout(ObDesktopLayout *l)
1085 {
1086 if (l->columns == 0 && l->rows == 0) /* both 0's is bad data.. */
1087 return FALSE;
1088
1089 /* fill in a zero rows/columns */
1090 if (l->columns == 0) {
1091 l->columns = screen_num_desktops / l->rows;
1092 if (l->rows * l->columns < screen_num_desktops)
1093 l->columns++;
1094 if (l->rows * l->columns >= screen_num_desktops + l->columns)
1095 l->rows--;
1096 } else if (l->rows == 0) {
1097 l->rows = screen_num_desktops / l->columns;
1098 if (l->columns * l->rows < screen_num_desktops)
1099 l->rows++;
1100 if (l->columns * l->rows >= screen_num_desktops + l->rows)
1101 l->columns--;
1102 }
1103
1104 /* bounds checking */
1105 if (l->orientation == OB_ORIENTATION_HORZ) {
1106 l->columns = MIN(screen_num_desktops, l->columns);
1107 l->rows = MIN(l->rows,
1108 (screen_num_desktops + l->columns - 1) / l->columns);
1109 l->columns = screen_num_desktops / l->rows +
1110 !!(screen_num_desktops % l->rows);
1111 } else {
1112 l->rows = MIN(screen_num_desktops, l->rows);
1113 l->columns = MIN(l->columns,
1114 (screen_num_desktops + l->rows - 1) / l->rows);
1115 l->rows = screen_num_desktops / l->columns +
1116 !!(screen_num_desktops % l->columns);
1117 }
1118 return TRUE;
1119 }
1120
1121 void screen_update_layout(void)
1122
1123 {
1124 ObDesktopLayout l;
1125 guint32 *data;
1126 guint num;
1127
1128 screen_desktop_layout.orientation = OB_ORIENTATION_HORZ;
1129 screen_desktop_layout.start_corner = OB_CORNER_TOPLEFT;
1130 screen_desktop_layout.rows = 1;
1131 screen_desktop_layout.columns = screen_num_desktops;
1132
1133 if (OBT_PROP_GETA32(obt_root(ob_screen),
1134 NET_DESKTOP_LAYOUT, CARDINAL, &data, &num)) {
1135 if (num == 3 || num == 4) {
1136
1137 if (data[0] == OBT_PROP_ATOM(NET_WM_ORIENTATION_VERT))
1138 l.orientation = OB_ORIENTATION_VERT;
1139 else if (data[0] == OBT_PROP_ATOM(NET_WM_ORIENTATION_HORZ))
1140 l.orientation = OB_ORIENTATION_HORZ;
1141 else
1142 return;
1143
1144 if (num < 4)
1145 l.start_corner = OB_CORNER_TOPLEFT;
1146 else {
1147 if (data[3] == OBT_PROP_ATOM(NET_WM_TOPLEFT))
1148 l.start_corner = OB_CORNER_TOPLEFT;
1149 else if (data[3] == OBT_PROP_ATOM(NET_WM_TOPRIGHT))
1150 l.start_corner = OB_CORNER_TOPRIGHT;
1151 else if (data[3] == OBT_PROP_ATOM(NET_WM_BOTTOMRIGHT))
1152 l.start_corner = OB_CORNER_BOTTOMRIGHT;
1153 else if (data[3] == OBT_PROP_ATOM(NET_WM_BOTTOMLEFT))
1154 l.start_corner = OB_CORNER_BOTTOMLEFT;
1155 else
1156 return;
1157 }
1158
1159 l.columns = data[1];
1160 l.rows = data[2];
1161
1162 if (screen_validate_layout(&l))
1163 screen_desktop_layout = l;
1164
1165 g_free(data);
1166 }
1167 }
1168 }
1169
1170 void screen_update_desktop_names(void)
1171 {
1172 guint i;
1173
1174 /* empty the array */
1175 g_strfreev(screen_desktop_names);
1176 screen_desktop_names = NULL;
1177
1178 if (OBT_PROP_GETSS(obt_root(ob_screen),
1179 NET_DESKTOP_NAMES, utf8, &screen_desktop_names))
1180 for (i = 0; screen_desktop_names[i] && i < screen_num_desktops; ++i);
1181 else
1182 i = 0;
1183 if (i < screen_num_desktops) {
1184 GSList *it;
1185
1186 screen_desktop_names = g_renew(gchar*, screen_desktop_names,
1187 screen_num_desktops + 1);
1188 screen_desktop_names[screen_num_desktops] = NULL;
1189
1190 it = g_slist_nth(config_desktops_names, i);
1191
1192 for (; i < screen_num_desktops; ++i) {
1193 if (it && ((char*)it->data)[0]) /* not empty */
1194 /* use the names from the config file when possible */
1195 screen_desktop_names[i] = g_strdup(it->data);
1196 else
1197 /* make up a nice name if it's not though */
1198 screen_desktop_names[i] = g_strdup_printf(_("desktop %i"),
1199 i + 1);
1200 if (it) it = g_slist_next(it);
1201 }
1202
1203 /* if we changed any names, then set the root property so we can
1204 all agree on the names */
1205 OBT_PROP_SETSS(obt_root(ob_screen), NET_DESKTOP_NAMES,
1206 utf8, (const gchar**)screen_desktop_names);
1207 }
1208
1209 /* resize the pager for these names */
1210 pager_popup_text_width_to_strings(desktop_popup,
1211 screen_desktop_names,
1212 screen_num_desktops);
1213 }
1214
1215 void screen_show_desktop(gboolean show, ObClient *show_only)
1216 {
1217 GList *it;
1218
1219 if (show == screen_showing_desktop) return; /* no change */
1220
1221 screen_showing_desktop = show;
1222
1223 if (show) {
1224 /* hide windows bottom to top */
1225 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
1226 if (WINDOW_IS_CLIENT(it->data)) {
1227 ObClient *client = it->data;
1228 client_showhide(client);
1229 }
1230 }
1231 }
1232 else {
1233 /* restore windows top to bottom */
1234 for (it = stacking_list; it; it = g_list_next(it)) {
1235 if (WINDOW_IS_CLIENT(it->data)) {
1236 ObClient *client = it->data;
1237 if (client_should_show(client)) {
1238 if (!show_only || client == show_only)
1239 client_show(client);
1240 else
1241 client_iconify(client, TRUE, FALSE, TRUE);
1242 }
1243 }
1244 }
1245 }
1246
1247 if (show) {
1248 /* focus the desktop */
1249 for (it = focus_order; it; it = g_list_next(it)) {
1250 ObClient *c = it->data;
1251 if (c->type == OB_CLIENT_TYPE_DESKTOP &&
1252 (c->desktop == screen_desktop || c->desktop == DESKTOP_ALL) &&
1253 client_focus(it->data))
1254 break;
1255 }
1256 }
1257 else if (!show_only) {
1258 ObClient *c;
1259
1260 if ((c = focus_fallback(TRUE, FALSE, TRUE, FALSE))) {
1261 /* only do the flicker reducing stuff ahead of time if we are going
1262 to call xsetinputfocus on the window ourselves. otherwise there
1263 is no guarantee the window will actually take focus.. */
1264 if (c->can_focus) {
1265 /* reduce flicker by hiliting now rather than waiting for the
1266 server FocusIn event */
1267 frame_adjust_focus(c->frame, TRUE);
1268 }
1269 }
1270 }
1271
1272 show = !!show; /* make it boolean */
1273 OBT_PROP_SET32(obt_root(ob_screen), NET_SHOWING_DESKTOP, CARDINAL, show);
1274 }
1275
1276 void screen_install_colormap(ObClient *client, gboolean install)
1277 {
1278 if (client == NULL || client->colormap == None) {
1279 if (install)
1280 XInstallColormap(obt_display, RrColormap(ob_rr_inst));
1281 else
1282 XUninstallColormap(obt_display, RrColormap(ob_rr_inst));
1283 } else {
1284 obt_display_ignore_errors(TRUE);
1285 if (install)
1286 XInstallColormap(obt_display, client->colormap);
1287 else
1288 XUninstallColormap(obt_display, client->colormap);
1289 obt_display_ignore_errors(FALSE);
1290 }
1291 }
1292
1293 typedef struct {
1294 guint desktop;
1295 StrutPartial *strut;
1296 } ObScreenStrut;
1297
1298 #define RESET_STRUT_LIST(sl) \
1299 while (sl) { \
1300 g_slice_free(ObScreenStrut, (sl)->data); \
1301 sl = g_slist_delete_link(sl, sl); \
1302 }
1303
1304 #define ADD_STRUT_TO_LIST(sl, d, s) \
1305 { \
1306 ObScreenStrut *ss = g_slice_new(ObScreenStrut); \
1307 ss->desktop = d; \
1308 ss->strut = s; \
1309 sl = g_slist_prepend(sl, ss); \
1310 }
1311
1312 #define VALIDATE_STRUTS(sl, side, max) \
1313 { \
1314 GSList *it; \
1315 for (it = sl; it; it = g_slist_next(it)) { \
1316 ObScreenStrut *ss = it->data; \
1317 ss->strut->side = MIN(max, ss->strut->side); \
1318 } \
1319 }
1320
1321 static void get_xinerama_screens(Rect **xin_areas, guint *nxin)
1322 {
1323 guint i;
1324 gint n, l, r, t, b;
1325 #ifdef XINERAMA
1326 XineramaScreenInfo *info;
1327 #endif
1328
1329 if (ob_debug_xinerama) {
1330 gint w = WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen));
1331 gint h = HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen));
1332 *nxin = 2;
1333 *xin_areas = g_new(Rect, *nxin + 1);
1334 RECT_SET((*xin_areas)[0], 0, 0, w/2, h);
1335 RECT_SET((*xin_areas)[1], w/2, 0, w-(w/2), h);
1336 }
1337 #ifdef XINERAMA
1338 else if (obt_display_extension_xinerama &&
1339 (info = XineramaQueryScreens(obt_display, &n))) {
1340 *nxin = n;
1341 *xin_areas = g_new(Rect, *nxin + 1);
1342 for (i = 0; i < *nxin; ++i)
1343 RECT_SET((*xin_areas)[i], info[i].x_org, info[i].y_org,
1344 info[i].width, info[i].height);
1345 XFree(info);
1346 }
1347 #endif
1348 else {
1349 *nxin = 1;
1350 *xin_areas = g_new(Rect, *nxin + 1);
1351 RECT_SET((*xin_areas)[0], 0, 0,
1352 WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen)),
1353 HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen)));
1354 }
1355
1356 /* returns one extra with the total area in it */
1357 l = (*xin_areas)[0].x;
1358 t = (*xin_areas)[0].y;
1359 r = (*xin_areas)[0].x + (*xin_areas)[0].width - 1;
1360 b = (*xin_areas)[0].y + (*xin_areas)[0].height - 1;
1361 for (i = 1; i < *nxin; ++i) {
1362 l = MIN(l, (*xin_areas)[i].x);
1363 t = MIN(l, (*xin_areas)[i].y);
1364 r = MAX(r, (*xin_areas)[i].x + (*xin_areas)[i].width - 1);
1365 b = MAX(b, (*xin_areas)[i].y + (*xin_areas)[i].height - 1);
1366 }
1367 RECT_SET((*xin_areas)[*nxin], l, t, r - l + 1, b - t + 1);
1368 }
1369
1370 void screen_update_areas(void)
1371 {
1372 guint i;
1373 gulong *dims;
1374 GList *it;
1375
1376 g_free(monitor_area);
1377 get_xinerama_screens(&monitor_area, &screen_num_monitors);
1378
1379 /* set up the user-specified margins */
1380 config_margins.top_start = RECT_LEFT(monitor_area[screen_num_monitors]);
1381 config_margins.top_end = RECT_RIGHT(monitor_area[screen_num_monitors]);
1382 config_margins.bottom_start = RECT_LEFT(monitor_area[screen_num_monitors]);
1383 config_margins.bottom_end = RECT_RIGHT(monitor_area[screen_num_monitors]);
1384 config_margins.left_start = RECT_TOP(monitor_area[screen_num_monitors]);
1385 config_margins.left_end = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1386 config_margins.right_start = RECT_TOP(monitor_area[screen_num_monitors]);
1387 config_margins.right_end = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1388
1389 RESET_STRUT_LIST(struts_left);
1390 RESET_STRUT_LIST(struts_top);
1391 RESET_STRUT_LIST(struts_right);
1392 RESET_STRUT_LIST(struts_bottom);
1393
1394 /* collect the struts */
1395 for (it = client_list; it; it = g_list_next(it)) {
1396 ObClient *c = it->data;
1397 if (c->strut.left)
1398 ADD_STRUT_TO_LIST(struts_left, c->desktop, &c->strut);
1399 if (c->strut.top)
1400 ADD_STRUT_TO_LIST(struts_top, c->desktop, &c->strut);
1401 if (c->strut.right)
1402 ADD_STRUT_TO_LIST(struts_right, c->desktop, &c->strut);
1403 if (c->strut.bottom)
1404 ADD_STRUT_TO_LIST(struts_bottom, c->desktop, &c->strut);
1405 }
1406 if (dock_strut.left)
1407 ADD_STRUT_TO_LIST(struts_left, DESKTOP_ALL, &dock_strut);
1408 if (dock_strut.top)
1409 ADD_STRUT_TO_LIST(struts_top, DESKTOP_ALL, &dock_strut);
1410 if (dock_strut.right)
1411 ADD_STRUT_TO_LIST(struts_right, DESKTOP_ALL, &dock_strut);
1412 if (dock_strut.bottom)
1413 ADD_STRUT_TO_LIST(struts_bottom, DESKTOP_ALL, &dock_strut);
1414
1415 if (config_margins.left)
1416 ADD_STRUT_TO_LIST(struts_left, DESKTOP_ALL, &config_margins);
1417 if (config_margins.top)
1418 ADD_STRUT_TO_LIST(struts_top, DESKTOP_ALL, &config_margins);
1419 if (config_margins.right)
1420 ADD_STRUT_TO_LIST(struts_right, DESKTOP_ALL, &config_margins);
1421 if (config_margins.bottom)
1422 ADD_STRUT_TO_LIST(struts_bottom, DESKTOP_ALL, &config_margins);
1423
1424 VALIDATE_STRUTS(struts_left, left,
1425 monitor_area[screen_num_monitors].width / 2);
1426 VALIDATE_STRUTS(struts_right, right,
1427 monitor_area[screen_num_monitors].width / 2);
1428 VALIDATE_STRUTS(struts_top, top,
1429 monitor_area[screen_num_monitors].height / 2);
1430 VALIDATE_STRUTS(struts_bottom, bottom,
1431 monitor_area[screen_num_monitors].height / 2);
1432
1433 dims = g_new(gulong, 4 * screen_num_desktops);
1434 for (i = 0; i < screen_num_desktops; ++i) {
1435 Rect *area = screen_area(i, SCREEN_AREA_ALL_MONITORS, NULL);
1436 dims[i*4+0] = area->x;
1437 dims[i*4+1] = area->y;
1438 dims[i*4+2] = area->width;
1439 dims[i*4+3] = area->height;
1440 g_slice_free(Rect, area);
1441 }
1442
1443 /* set the legacy workarea hint to the union of all the monitors */
1444 OBT_PROP_SETA32(obt_root(ob_screen), NET_WORKAREA, CARDINAL,
1445 dims, 4 * screen_num_desktops);
1446
1447 /* the area has changed, adjust all the windows if they need it */
1448 for (it = client_list; it; it = g_list_next(it))
1449 client_reconfigure(it->data, FALSE);
1450
1451 g_free(dims);
1452 }
1453
1454 #if 0
1455 Rect* screen_area_all_monitors(guint desktop)
1456 {
1457 guint i;
1458 Rect *a;
1459
1460 a = screen_area_monitor(desktop, 0);
1461
1462 /* combine all the monitors together */
1463 for (i = 1; i < screen_num_monitors; ++i) {
1464 Rect *m = screen_area_monitor(desktop, i);
1465 gint l, r, t, b;
1466
1467 l = MIN(RECT_LEFT(*a), RECT_LEFT(*m));
1468 t = MIN(RECT_TOP(*a), RECT_TOP(*m));
1469 r = MAX(RECT_RIGHT(*a), RECT_RIGHT(*m));
1470 b = MAX(RECT_BOTTOM(*a), RECT_BOTTOM(*m));
1471
1472 RECT_SET(*a, l, t, r - l + 1, b - t + 1);
1473
1474 g_free(m);
1475 }
1476
1477 return a;
1478 }
1479 #endif
1480
1481 #define STRUT_LEFT_IN_SEARCH(s, search) \
1482 (RANGES_INTERSECT(search->y, search->height, \
1483 s->left_start, s->left_end - s->left_start + 1))
1484 #define STRUT_RIGHT_IN_SEARCH(s, search) \
1485 (RANGES_INTERSECT(search->y, search->height, \
1486 s->right_start, s->right_end - s->right_start + 1))
1487 #define STRUT_TOP_IN_SEARCH(s, search) \
1488 (RANGES_INTERSECT(search->x, search->width, \
1489 s->top_start, s->top_end - s->top_start + 1))
1490 #define STRUT_BOTTOM_IN_SEARCH(s, search) \
1491 (RANGES_INTERSECT(search->x, search->width, \
1492 s->bottom_start, s->bottom_end - s->bottom_start + 1))
1493
1494 #define STRUT_LEFT_IGNORE(s, us, search) \
1495 (head == SCREEN_AREA_ALL_MONITORS && us && \
1496 RECT_LEFT(monitor_area[i]) + s->left > RECT_LEFT(*search))
1497 #define STRUT_RIGHT_IGNORE(s, us, search) \
1498 (head == SCREEN_AREA_ALL_MONITORS && us && \
1499 RECT_RIGHT(monitor_area[i]) - s->right < RECT_RIGHT(*search))
1500 #define STRUT_TOP_IGNORE(s, us, search) \
1501 (head == SCREEN_AREA_ALL_MONITORS && us && \
1502 RECT_TOP(monitor_area[i]) + s->top > RECT_TOP(*search))
1503 #define STRUT_BOTTOM_IGNORE(s, us, search) \
1504 (head == SCREEN_AREA_ALL_MONITORS && us && \
1505 RECT_BOTTOM(monitor_area[i]) - s->bottom < RECT_BOTTOM(*search))
1506
1507 Rect* screen_area(guint desktop, guint head, Rect *search)
1508 {
1509 Rect *a;
1510 GSList *it;
1511 gint l, r, t, b;
1512 guint i, d;
1513 gboolean us = search != NULL; /* user provided search */
1514
1515 g_assert(desktop < screen_num_desktops || desktop == DESKTOP_ALL);
1516 g_assert(head < screen_num_monitors || head == SCREEN_AREA_ONE_MONITOR ||
1517 head == SCREEN_AREA_ALL_MONITORS);
1518 g_assert(!(head == SCREEN_AREA_ONE_MONITOR && search == NULL));
1519
1520 /* find any struts for this monitor
1521 which will be affecting the search area.
1522 */
1523
1524 /* search everything if search is null */
1525 if (!search) {
1526 if (head < screen_num_monitors) search = &monitor_area[head];
1527 else search = &monitor_area[screen_num_monitors];
1528 }
1529 if (head == SCREEN_AREA_ONE_MONITOR) head = screen_find_monitor(search);
1530
1531 /* al is "all left" meaning the furthest left you can get, l is our
1532 "working left" meaning our current strut edge which we're calculating
1533 */
1534
1535 /* only include monitors which the search area lines up with */
1536 if (RECT_INTERSECTS_RECT(monitor_area[screen_num_monitors], *search)) {
1537 l = RECT_RIGHT(monitor_area[screen_num_monitors]);
1538 t = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1539 r = RECT_LEFT(monitor_area[screen_num_monitors]);
1540 b = RECT_TOP(monitor_area[screen_num_monitors]);
1541 for (i = 0; i < screen_num_monitors; ++i) {
1542 /* add the monitor if applicable */
1543 if (RANGES_INTERSECT(search->x, search->width,
1544 monitor_area[i].x, monitor_area[i].width))
1545 {
1546 t = MIN(t, RECT_TOP(monitor_area[i]));
1547 b = MAX(b, RECT_BOTTOM(monitor_area[i]));
1548 }
1549 if (RANGES_INTERSECT(search->y, search->height,
1550 monitor_area[i].y, monitor_area[i].height))
1551 {
1552 l = MIN(l, RECT_LEFT(monitor_area[i]));
1553 r = MAX(r, RECT_RIGHT(monitor_area[i]));
1554 }
1555 }
1556 } else {
1557 l = RECT_LEFT(monitor_area[screen_num_monitors]);
1558 t = RECT_TOP(monitor_area[screen_num_monitors]);
1559 r = RECT_RIGHT(monitor_area[screen_num_monitors]);
1560 b = RECT_BOTTOM(monitor_area[screen_num_monitors]);
1561 }
1562
1563 for (d = 0; d < screen_num_desktops; ++d) {
1564 if (d != desktop && desktop != DESKTOP_ALL) continue;
1565
1566 for (i = 0; i < screen_num_monitors; ++i) {
1567 if (head != SCREEN_AREA_ALL_MONITORS && head != i) continue;
1568
1569 for (it = struts_left; it; it = g_slist_next(it)) {
1570 ObScreenStrut *s = it->data;
1571 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1572 STRUT_LEFT_IN_SEARCH(s->strut, search) &&
1573 !STRUT_LEFT_IGNORE(s->strut, us, search))
1574 l = MAX(l, RECT_LEFT(monitor_area[screen_num_monitors])
1575 + s->strut->left);
1576 }
1577 for (it = struts_top; it; it = g_slist_next(it)) {
1578 ObScreenStrut *s = it->data;
1579 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1580 STRUT_TOP_IN_SEARCH(s->strut, search) &&
1581 !STRUT_TOP_IGNORE(s->strut, us, search))
1582 t = MAX(t, RECT_TOP(monitor_area[screen_num_monitors])
1583 + s->strut->top);
1584 }
1585 for (it = struts_right; it; it = g_slist_next(it)) {
1586 ObScreenStrut *s = it->data;
1587 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1588 STRUT_RIGHT_IN_SEARCH(s->strut, search) &&
1589 !STRUT_RIGHT_IGNORE(s->strut, us, search))
1590 r = MIN(r, RECT_RIGHT(monitor_area[screen_num_monitors])
1591 - s->strut->right);
1592 }
1593 for (it = struts_bottom; it; it = g_slist_next(it)) {
1594 ObScreenStrut *s = it->data;
1595 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
1596 STRUT_BOTTOM_IN_SEARCH(s->strut, search) &&
1597 !STRUT_BOTTOM_IGNORE(s->strut, us, search))
1598 b = MIN(b, RECT_BOTTOM(monitor_area[screen_num_monitors])
1599 - s->strut->bottom);
1600 }
1601
1602 /* limit to this monitor */
1603 if (head == i) {
1604 l = MAX(l, RECT_LEFT(monitor_area[i]));
1605 t = MAX(t, RECT_TOP(monitor_area[i]));
1606 r = MIN(r, RECT_RIGHT(monitor_area[i]));
1607 b = MIN(b, RECT_BOTTOM(monitor_area[i]));
1608 }
1609 }
1610 }
1611
1612 a = g_slice_new(Rect);
1613 a->x = l;
1614 a->y = t;
1615 a->width = r - l + 1;
1616 a->height = b - t + 1;
1617 return a;
1618 }
1619
1620 guint screen_find_monitor(const Rect *search)
1621 {
1622 guint i;
1623 guint most = screen_num_monitors;
1624 guint mostv = 0;
1625
1626 for (i = 0; i < screen_num_monitors; ++i) {
1627 const Rect *area = screen_physical_area_monitor(i);
1628 if (RECT_INTERSECTS_RECT(*area, *search)) {
1629 Rect r;
1630 guint v;
1631
1632 RECT_SET_INTERSECTION(r, *area, *search);
1633 v = r.width * r.height;
1634
1635 if (v > mostv) {
1636 mostv = v;
1637 most = i;
1638 }
1639 }
1640 }
1641 return most;
1642 }
1643
1644 const Rect* screen_physical_area_all_monitors(void)
1645 {
1646 return screen_physical_area_monitor(screen_num_monitors);
1647 }
1648
1649 const Rect* screen_physical_area_monitor(guint head)
1650 {
1651 g_assert(head <= screen_num_monitors);
1652
1653 return &monitor_area[head];
1654 }
1655
1656 gboolean screen_physical_area_monitor_contains(guint head, Rect *search)
1657 {
1658 g_assert(head <= screen_num_monitors);
1659 g_assert(search);
1660 return RECT_INTERSECTS_RECT(monitor_area[head], *search);
1661 }
1662
1663 guint screen_monitor_active(void)
1664 {
1665 if (moveresize_client)
1666 return client_monitor(moveresize_client);
1667 else if (focus_client)
1668 return client_monitor(focus_client);
1669 else
1670 return screen_monitor_pointer();
1671 }
1672
1673 const Rect* screen_physical_area_active(void)
1674 {
1675 return screen_physical_area_monitor(screen_monitor_active());
1676 }
1677
1678 guint screen_monitor_primary(gboolean fixed)
1679 {
1680 if (config_primary_monitor_index > 0) {
1681 if (config_primary_monitor_index-1 < screen_num_monitors)
1682 return config_primary_monitor_index - 1;
1683 else
1684 return 0;
1685 }
1686 else if (fixed)
1687 return 0;
1688 else if (config_primary_monitor == OB_PLACE_MONITOR_ACTIVE)
1689 return screen_monitor_active();
1690 else /* config_primary_monitor == OB_PLACE_MONITOR_MOUSE */
1691 return screen_monitor_pointer();
1692 }
1693
1694 const Rect* screen_physical_area_primary(gboolean fixed)
1695 {
1696 return screen_physical_area_monitor(screen_monitor_primary(fixed));
1697 }
1698
1699 void screen_set_root_cursor(void)
1700 {
1701 if (sn_app_starting())
1702 XDefineCursor(obt_display, obt_root(ob_screen),
1703 ob_cursor(OB_CURSOR_BUSYPOINTER));
1704 else
1705 XDefineCursor(obt_display, obt_root(ob_screen),
1706 ob_cursor(OB_CURSOR_POINTER));
1707 }
1708
1709 guint screen_find_monitor_point(guint x, guint y)
1710 {
1711 Rect mon;
1712 RECT_SET(mon, x, y, 1, 1);
1713 return screen_find_monitor(&mon);
1714 }
1715
1716 guint screen_monitor_pointer()
1717 {
1718 gint x, y;
1719 if (!screen_pointer_pos(&x, &y))
1720 x = y = 0;
1721 return screen_find_monitor_point(x, y);
1722 }
1723
1724 gboolean screen_pointer_pos(gint *x, gint *y)
1725 {
1726 Window w;
1727 gint i;
1728 guint u;
1729 gboolean ret;
1730
1731 ret = !!XQueryPointer(obt_display, obt_root(ob_screen),
1732 &w, &w, x, y, &i, &i, &u);
1733 if (!ret) {
1734 for (i = 0; i < ScreenCount(obt_display); ++i)
1735 if (i != ob_screen)
1736 if (XQueryPointer(obt_display, obt_root(i),
1737 &w, &w, x, y, &i, &i, &u))
1738 break;
1739 }
1740 return ret;
1741 }
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