]> Dogcows Code - chaz/openbox/blob - openbox/screen.c
add a slit to the kernel
[chaz/openbox] / openbox / screen.c
1 #include "openbox.h"
2 #include "slit.h"
3 #include "prop.h"
4 #include "startup.h"
5 #include "config.h"
6 #include "screen.h"
7 #include "client.h"
8 #include "frame.h"
9 #include "focus.h"
10 #include "dispatch.h"
11 #include "extensions.h"
12 #include "../render/render.h"
13
14 #include <X11/Xlib.h>
15 #ifdef HAVE_UNISTD_H
16 # include <sys/types.h>
17 # include <unistd.h>
18 #endif
19
20 /*! The event mask to grab on the root window */
21 #define ROOT_EVENTMASK (StructureNotifyMask | PropertyChangeMask | \
22 EnterWindowMask | LeaveWindowMask | \
23 SubstructureNotifyMask | SubstructureRedirectMask | \
24 ButtonPressMask | ButtonReleaseMask | ButtonMotionMask)
25
26 guint screen_num_desktops = 0;
27 guint screen_desktop = 0;
28 Size screen_physical_size;
29 gboolean screen_showing_desktop;
30 DesktopLayout screen_desktop_layout;
31 char **screen_desktop_names = NULL;
32
33 static Rect *area = NULL;
34 static Strut *strut = NULL;
35 static Window support_window = None;
36
37 static void screen_update_area();
38
39 static gboolean running;
40 static int another_running(Display *d, XErrorEvent *e)
41 {
42 (void)d;(void)e;
43 g_message("A window manager is already running on screen %d",
44 ob_screen);
45 running = TRUE;
46 return -1;
47 }
48
49 gboolean screen_annex()
50 {
51 XErrorHandler old;
52 pid_t pid;
53 int i, num_support;
54 guint32 *supported;
55
56 running = FALSE;
57 old = XSetErrorHandler(another_running);
58 XSelectInput(ob_display, ob_root, ROOT_EVENTMASK);
59 XSync(ob_display, FALSE);
60 XSetErrorHandler(old);
61 if (running)
62 return FALSE;
63
64 g_message("Managing screen %d", ob_screen);
65
66 /* set the mouse cursor for the root window (the default cursor) */
67 XDefineCursor(ob_display, ob_root, ob_cursors.ptr);
68
69 /* set the OPENBOX_PID hint */
70 pid = getpid();
71 PROP_SET32(ob_root, openbox_pid, cardinal, pid);
72
73 /* create the netwm support window */
74 support_window = XCreateSimpleWindow(ob_display, ob_root, 0,0,1,1,0,0,0);
75
76 /* set supporting window */
77 PROP_SET32(ob_root, net_supporting_wm_check, window, support_window);
78
79 /* set properties on the supporting window */
80 PROP_SETS(support_window, net_wm_name, "Openbox");
81 PROP_SET32(support_window, net_supporting_wm_check, window,support_window);
82
83 /* set the _NET_SUPPORTED_ATOMS hint */
84 num_support = 61;
85 i = 0;
86 supported = g_new(guint32, num_support);
87 supported[i++] = prop_atoms.net_current_desktop;
88 supported[i++] = prop_atoms.net_number_of_desktops;
89 supported[i++] = prop_atoms.net_desktop_geometry;
90 supported[i++] = prop_atoms.net_desktop_viewport;
91 supported[i++] = prop_atoms.net_active_window;
92 supported[i++] = prop_atoms.net_workarea;
93 supported[i++] = prop_atoms.net_client_list;
94 supported[i++] = prop_atoms.net_client_list_stacking;
95 supported[i++] = prop_atoms.net_desktop_names;
96 supported[i++] = prop_atoms.net_close_window;
97 supported[i++] = prop_atoms.net_desktop_layout;
98 supported[i++] = prop_atoms.net_showing_desktop;
99 supported[i++] = prop_atoms.net_wm_name;
100 supported[i++] = prop_atoms.net_wm_visible_name;
101 supported[i++] = prop_atoms.net_wm_icon_name;
102 supported[i++] = prop_atoms.net_wm_visible_icon_name;
103 supported[i++] = prop_atoms.net_wm_desktop;
104 supported[i++] = prop_atoms.net_wm_strut;
105 supported[i++] = prop_atoms.net_wm_window_type;
106 supported[i++] = prop_atoms.net_wm_window_type_desktop;
107 supported[i++] = prop_atoms.net_wm_window_type_dock;
108 supported[i++] = prop_atoms.net_wm_window_type_toolbar;
109 supported[i++] = prop_atoms.net_wm_window_type_menu;
110 supported[i++] = prop_atoms.net_wm_window_type_utility;
111 supported[i++] = prop_atoms.net_wm_window_type_splash;
112 supported[i++] = prop_atoms.net_wm_window_type_dialog;
113 supported[i++] = prop_atoms.net_wm_window_type_normal;
114 supported[i++] = prop_atoms.net_wm_allowed_actions;
115 supported[i++] = prop_atoms.net_wm_action_move;
116 supported[i++] = prop_atoms.net_wm_action_resize;
117 supported[i++] = prop_atoms.net_wm_action_minimize;
118 supported[i++] = prop_atoms.net_wm_action_shade;
119 supported[i++] = prop_atoms.net_wm_action_maximize_horz;
120 supported[i++] = prop_atoms.net_wm_action_maximize_vert;
121 supported[i++] = prop_atoms.net_wm_action_fullscreen;
122 supported[i++] = prop_atoms.net_wm_action_change_desktop;
123 supported[i++] = prop_atoms.net_wm_action_close;
124 supported[i++] = prop_atoms.net_wm_state;
125 supported[i++] = prop_atoms.net_wm_state_modal;
126 supported[i++] = prop_atoms.net_wm_state_maximized_vert;
127 supported[i++] = prop_atoms.net_wm_state_maximized_horz;
128 supported[i++] = prop_atoms.net_wm_state_shaded;
129 supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
130 supported[i++] = prop_atoms.net_wm_state_skip_pager;
131 supported[i++] = prop_atoms.net_wm_state_hidden;
132 supported[i++] = prop_atoms.net_wm_state_fullscreen;
133 supported[i++] = prop_atoms.net_wm_state_above;
134 supported[i++] = prop_atoms.net_wm_state_below;
135 supported[i++] = prop_atoms.net_moveresize_window;
136 supported[i++] = prop_atoms.net_wm_moveresize;
137 supported[i++] = prop_atoms.net_wm_moveresize_size_topleft;
138 supported[i++] = prop_atoms.net_wm_moveresize_size_top;
139 supported[i++] = prop_atoms.net_wm_moveresize_size_topright;
140 supported[i++] = prop_atoms.net_wm_moveresize_size_right;
141 supported[i++] = prop_atoms.net_wm_moveresize_size_bottomright;
142 supported[i++] = prop_atoms.net_wm_moveresize_size_bottom;
143 supported[i++] = prop_atoms.net_wm_moveresize_size_bottomleft;
144 supported[i++] = prop_atoms.net_wm_moveresize_size_left;
145 supported[i++] = prop_atoms.net_wm_moveresize_move;
146 supported[i++] = prop_atoms.net_wm_moveresize_size_keyboard;
147 supported[i++] = prop_atoms.net_wm_moveresize_move_keyboard;
148 g_assert(i == num_support);
149 /*
150 supported[] = prop_atoms.net_wm_action_stick;
151 */
152
153 PROP_SETA32(ob_root, net_supported, atom, supported, num_support);
154 g_free(supported);
155
156 return TRUE;
157 }
158
159 void screen_startup()
160 {
161 GSList *it;
162 guint i;
163
164 /* get the initial size */
165 screen_resize(WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen)),
166 HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen)));
167
168 /* set the names */
169 screen_desktop_names = g_new(char*,
170 g_slist_length(config_desktops_names) + 1);
171 for (i = 0, it = config_desktops_names; it; ++i, it = it->next)
172 screen_desktop_names[i] = it->data; /* dont strdup */
173 screen_desktop_names[i] = NULL;
174 PROP_SETSS(ob_root, net_desktop_names, screen_desktop_names);
175 g_free(screen_desktop_names); /* dont free the individual strings */
176 screen_desktop_names = NULL;
177
178 screen_num_desktops = 0;
179 screen_set_num_desktops(config_desktops_num);
180 if (startup_desktop >= screen_num_desktops)
181 startup_desktop = 0;
182 screen_desktop = startup_desktop;
183 screen_set_desktop(startup_desktop);
184
185 /* don't start in showing-desktop mode */
186 screen_showing_desktop = FALSE;
187 PROP_SET32(ob_root, net_showing_desktop, cardinal, screen_showing_desktop);
188
189 screen_update_layout();
190 }
191
192 void screen_shutdown()
193 {
194 XSelectInput(ob_display, ob_root, NoEventMask);
195
196 PROP_ERASE(ob_root, openbox_pid); /* we're not running here no more! */
197 PROP_ERASE(ob_root, net_supported); /* not without us */
198 PROP_ERASE(ob_root, net_showing_desktop); /* don't keep this mode */
199
200 XDestroyWindow(ob_display, support_window);
201
202 g_strfreev(screen_desktop_names);
203 g_free(strut);
204 g_free(area);
205 }
206
207 void screen_resize(int w, int h)
208 {
209 GList *it;
210 guint32 geometry[2];
211
212 /* Set the _NET_DESKTOP_GEOMETRY hint */
213 geometry[0] = w;
214 geometry[1] = h;
215 PROP_SETA32(ob_root, net_desktop_geometry, cardinal, geometry, 2);
216 screen_physical_size.width = geometry[0];
217 screen_physical_size.height = geometry[1];
218
219 if (ob_state == State_Starting)
220 return;
221
222 slit_configure_all();
223 screen_update_struts();
224
225 for (it = client_list; it; it = it->next)
226 client_move_onscreen(it->data);
227 }
228
229 void screen_set_num_desktops(guint num)
230 {
231 guint i, old;
232 guint32 *viewport;
233 GList *it;
234
235 g_assert(num > 0);
236
237 old = screen_num_desktops;
238 screen_num_desktops = num;
239 PROP_SET32(ob_root, net_number_of_desktops, cardinal, num);
240
241 /* set the viewport hint */
242 viewport = g_new0(guint32, num * 2);
243 PROP_SETA32(ob_root, net_desktop_viewport, cardinal, viewport, num * 2);
244 g_free(viewport);
245
246 /* the number of rows/columns will differ */
247 screen_update_layout();
248
249 /* may be some unnamed desktops that we need to fill in with names */
250 screen_update_desktop_names();
251
252 /* update the focus lists */
253 /* free our lists for the desktops which have disappeared */
254 for (i = num; i < old; ++i)
255 g_list_free(focus_order[i]);
256 /* realloc the array */
257 focus_order = g_renew(GList*, focus_order, num);
258 /* set the new lists to be empty */
259 for (i = old; i < num; ++i)
260 focus_order[i] = NULL;
261
262 /* move windows on desktops that will no longer exist! */
263 for (it = client_list; it != NULL; it = it->next) {
264 Client *c = it->data;
265 if (c->desktop >= num && c->desktop != DESKTOP_ALL)
266 client_set_desktop(c, num - 1, FALSE);
267 }
268
269 /* change our struts/area to match (after moving windows) */
270 screen_update_struts();
271
272 dispatch_ob(Event_Ob_NumDesktops, num, old);
273
274 /* change our desktop if we're on one that no longer exists! */
275 if (screen_desktop >= screen_num_desktops)
276 screen_set_desktop(num - 1);
277 }
278
279 void screen_set_desktop(guint num)
280 {
281 GList *it;
282 guint old;
283 XEvent e;
284
285 g_assert(num < screen_num_desktops);
286
287 old = screen_desktop;
288 screen_desktop = num;
289 PROP_SET32(ob_root, net_current_desktop, cardinal, num);
290
291 if (old == num) return;
292
293 g_message("Moving to desktop %d", num+1);
294
295 /* show windows before hiding the rest to lessen the enter/leave events */
296
297 /* show windows from top to bottom */
298 for (it = stacking_list; it != NULL; it = it->next) {
299 Client *c = it->data;
300 if (!c->frame->visible && client_should_show(c))
301 frame_show(c->frame);
302 }
303
304 /* hide windows from bottom to top */
305 for (it = g_list_last(stacking_list); it != NULL; it = it->prev) {
306 Client *c = it->data;
307 if (c->frame->visible && !client_should_show(c))
308 frame_hide(c->frame);
309 }
310
311 /* focus the last focused window on the desktop, and ignore enter events
312 from the switch so it doesnt mess with the focus */
313 while (XCheckTypedEvent(ob_display, EnterNotify, &e));
314 focus_fallback(Fallback_Desktop);
315
316 dispatch_ob(Event_Ob_Desktop, num, old);
317 }
318
319 void screen_update_layout()
320 {
321 guint32 *data = NULL;
322 guint num;
323
324 /* defaults */
325 screen_desktop_layout.orientation = prop_atoms.net_wm_orientation_horz;
326 screen_desktop_layout.start_corner = prop_atoms.net_wm_topleft;
327 screen_desktop_layout.rows = 1;
328 screen_desktop_layout.columns = screen_num_desktops;
329
330 if (PROP_GETA32(ob_root, net_desktop_layout, cardinal, &data, &num)) {
331 if (num == 3 || num == 4) {
332 if (data[0] == prop_atoms.net_wm_orientation_vert)
333 screen_desktop_layout.orientation = data[0];
334 if (num == 3)
335 screen_desktop_layout.start_corner =
336 prop_atoms.net_wm_topright;
337 else {
338 if (data[3] == prop_atoms.net_wm_topright)
339 screen_desktop_layout.start_corner = data[3];
340 else if (data[3] == prop_atoms.net_wm_bottomright)
341 screen_desktop_layout.start_corner = data[3];
342 else if (data[3] == prop_atoms.net_wm_bottomleft)
343 screen_desktop_layout.start_corner = data[3];
344 }
345
346 /* fill in a zero rows/columns */
347 if (!(data[1] == 0 && data[2] == 0)) { /* both 0's is bad data.. */
348 if (data[1] == 0) {
349 data[1] = (screen_num_desktops +
350 screen_num_desktops % data[2]) / data[2];
351 } else if (data[2] == 0) {
352 data[2] = (screen_num_desktops +
353 screen_num_desktops % data[1]) / data[1];
354 }
355 screen_desktop_layout.columns = data[1];
356 screen_desktop_layout.rows = data[2];
357 }
358
359 /* bounds checking */
360 if (screen_desktop_layout.orientation ==
361 prop_atoms.net_wm_orientation_horz) {
362 if (screen_desktop_layout.rows > screen_num_desktops)
363 screen_desktop_layout.rows = screen_num_desktops;
364 if (screen_desktop_layout.columns >
365 ((screen_num_desktops + screen_num_desktops %
366 screen_desktop_layout.rows) /
367 screen_desktop_layout.rows))
368 screen_desktop_layout.columns =
369 (screen_num_desktops + screen_num_desktops %
370 screen_desktop_layout.rows) /
371 screen_desktop_layout.rows;
372 } else {
373 if (screen_desktop_layout.columns > screen_num_desktops)
374 screen_desktop_layout.columns = screen_num_desktops;
375 if (screen_desktop_layout.rows >
376 ((screen_num_desktops + screen_num_desktops %
377 screen_desktop_layout.columns) /
378 screen_desktop_layout.columns))
379 screen_desktop_layout.rows =
380 (screen_num_desktops + screen_num_desktops %
381 screen_desktop_layout.columns) /
382 screen_desktop_layout.columns;
383 }
384 }
385 g_free(data);
386 }
387 }
388
389 void screen_update_desktop_names()
390 {
391 guint i;
392
393 /* empty the array */
394 g_strfreev(screen_desktop_names);
395 screen_desktop_names = NULL;
396
397 if (PROP_GETSS(ob_root, net_desktop_names, utf8, &screen_desktop_names))
398 for (i = 0; screen_desktop_names[i] && i <= screen_num_desktops; ++i);
399 else
400 i = 0;
401 if (i <= screen_num_desktops) {
402 screen_desktop_names = g_renew(char*, screen_desktop_names,
403 screen_num_desktops + 1);
404 screen_desktop_names[screen_num_desktops] = NULL;
405 for (; i < screen_num_desktops; ++i)
406 screen_desktop_names[i] = g_strdup("Unnamed Desktop");
407 }
408 }
409
410 void screen_show_desktop(gboolean show)
411 {
412 GList *it;
413
414 if (show == screen_showing_desktop) return; /* no change */
415
416 screen_showing_desktop = show;
417
418 if (show) {
419 /* bottom to top */
420 for (it = g_list_last(stacking_list); it != NULL; it = it->prev) {
421 Client *client = it->data;
422 if (client->frame->visible && !client_should_show(client))
423 frame_hide(client->frame);
424 }
425 } else {
426 /* top to bottom */
427 for (it = stacking_list; it != NULL; it = it->next) {
428 Client *client = it->data;
429 if (!client->frame->visible && client_should_show(client))
430 frame_show(client->frame);
431 }
432 }
433
434 if (show) {
435 /* focus desktop */
436 for (it = focus_order[screen_desktop]; it; it = it->next)
437 if (((Client*)it->data)->type == Type_Desktop &&
438 client_focus(it->data))
439 break;
440 } else {
441 focus_fallback(Fallback_NoFocus);
442 }
443
444 show = !!show; /* make it boolean */
445 PROP_SET32(ob_root, net_showing_desktop, cardinal, show);
446
447 dispatch_ob(Event_Ob_ShowDesktop, show, 0);
448 }
449
450 void screen_install_colormap(Client *client, gboolean install)
451 {
452 XWindowAttributes wa;
453
454 if (client == NULL) {
455 if (install)
456 XInstallColormap(ob_display, render_colormap);
457 else
458 XUninstallColormap(ob_display, render_colormap);
459 } else {
460 if (XGetWindowAttributes(ob_display, client->window, &wa) &&
461 wa.colormap != None) {
462 if (install)
463 XInstallColormap(ob_display, wa.colormap);
464 else
465 XUninstallColormap(ob_display, wa.colormap);
466 }
467 }
468 }
469
470 void screen_update_struts()
471 {
472 GList *it;
473 guint i;
474
475 g_free(strut);
476 strut = g_new0(Strut, screen_num_desktops + 1);
477
478 for (it = client_list; it != NULL; it = it->next) {
479 Client *c = it->data;
480 if (c->iconic) continue; /* these dont count in the strut */
481
482 if (c->desktop == 0xffffffff) {
483 for (i = 0; i < screen_num_desktops; ++i)
484 STRUT_ADD(strut[i], c->strut);
485 } else {
486 g_assert(c->desktop < screen_num_desktops);
487 STRUT_ADD(strut[c->desktop], c->strut);
488 }
489 /* apply to the 'all desktops' strut */
490 STRUT_ADD(strut[screen_num_desktops], c->strut);
491 }
492 screen_update_area();
493 }
494
495 static void screen_update_area()
496 {
497 guint i;
498 guint32 *dims;
499
500 g_free(area);
501 area = g_new0(Rect, screen_num_desktops + 1);
502
503 dims = g_new(guint32, 4 * screen_num_desktops);
504 for (i = 0; i < screen_num_desktops + 1; ++i) {
505 Rect old_area = area[i];
506 /*
507 #ifdef XINERAMA
508 // reset to the full areas
509 if (isXineramaActive())
510 xineramaUsableArea = getXineramaAreas();
511 #endif // XINERAMA
512 */
513
514 RECT_SET(area[i], strut[i].left, strut[i].top,
515 screen_physical_size.width - (strut[i].left +
516 strut[i].right),
517 screen_physical_size.height - (strut[i].top +
518 strut[i].bottom));
519
520 /*
521 #ifdef XINERAMA
522 if (isXineramaActive()) {
523 // keep each of the ximerama-defined areas inside the strut
524 RectList::iterator xit, xend = xineramaUsableArea.end();
525 for (xit = xineramaUsableArea.begin(); xit != xend; ++xit) {
526 if (xit->x() < usableArea.x()) {
527 xit->setX(usableArea.x());
528 xit->setWidth(xit->width() - usableArea.x());
529 }
530 if (xit->y() < usableArea.y()) {
531 xit->setY(usableArea.y());
532 xit->setHeight(xit->height() - usableArea.y());
533 }
534 if (xit->x() + xit->width() > usableArea.width())
535 xit->setWidth(usableArea.width() - xit->x());
536 if (xit->y() + xit->height() > usableArea.height())
537 xit->setHeight(usableArea.height() - xit->y());
538 }
539 }
540 #endif // XINERAMA
541 */
542 if (!RECT_EQUAL(old_area, area[i])) {
543 /* the area has changed, adjust all the maximized windows */
544 GList *it;
545 for (it = client_list; it; it = it->next) {
546 Client *c = it->data;
547 if (i < screen_num_desktops) {
548 if (c->desktop == i)
549 client_remaximize(c);
550 } else {
551 /* the 'all desktops' size */
552 if (c->desktop == DESKTOP_ALL)
553 client_remaximize(c);
554 }
555 }
556 }
557
558 /* don't set these for the 'all desktops' area */
559 if (i < screen_num_desktops) {
560 dims[(i * 4) + 0] = area[i].x;
561 dims[(i * 4) + 1] = area[i].y;
562 dims[(i * 4) + 2] = area[i].width;
563 dims[(i * 4) + 3] = area[i].height;
564 }
565 }
566 PROP_SETA32(ob_root, net_workarea, cardinal,
567 dims, 4 * screen_num_desktops);
568 g_free(dims);
569 }
570
571 Rect *screen_area(guint desktop)
572 {
573 if (desktop >= screen_num_desktops) {
574 if (desktop == DESKTOP_ALL)
575 return &area[screen_num_desktops];
576 return NULL;
577 }
578 return &area[desktop];
579 }
580
581 Strut *screen_strut(guint desktop)
582 {
583 if (desktop >= screen_num_desktops) {
584 if (desktop == DESKTOP_ALL)
585 return &strut[screen_num_desktops];
586 return NULL;
587 }
588 return &strut[desktop];
589 }
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