client.c (view raw)
1/*
2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
4 */
5
6#include <stdlib.h>
7#include <stdio.h>
8#include <string.h>
9#include <X11/Xatom.h>
10#include <X11/Xutil.h>
11
12#include "dwm.h"
13
14void (*arrange)(Arg *) = tiling;
15
16static Rule rule[] = {
17 /* class instance tags floating */
18 { "Firefox-bin", "Gecko", { [Twww] = "www" }, False },
19};
20
21static Client *
22next(Client *c)
23{
24 for(; c && !c->tags[tsel]; c = c->next);
25 return c;
26}
27
28void
29zoom(Arg *arg)
30{
31 Client **l, *old;
32
33 if(!(old = sel))
34 return;
35
36 for(l = &clients; *l && *l != sel; l = &(*l)->next);
37 *l = sel->next;
38
39 old->next = clients; /* pop */
40 clients = old;
41 sel = old;
42 arrange(NULL);
43 focus(sel);
44}
45
46void
47max(Arg *arg)
48{
49 if(!sel)
50 return;
51 sel->x = sx;
52 sel->y = sy + bh;
53 sel->w = sw - 2 * sel->border;
54 sel->h = sh - 2 * sel->border - bh;
55 craise(sel);
56 resize(sel, False);
57 discard_events(EnterWindowMask);
58}
59
60void
61view(Arg *arg)
62{
63 Client *c;
64
65 tsel = arg->i;
66 arrange(NULL);
67
68 if((c = next(clients)))
69 focus(c);
70
71 for(c = clients; c; c = next(c->next))
72 draw_client(c);
73 draw_bar();
74}
75
76void
77tappend(Arg *arg)
78{
79 if(!sel)
80 return;
81
82 sel->tags[arg->i] = tags[arg->i];
83 arrange(NULL);
84}
85
86void
87ttrunc(Arg *arg)
88{
89 int i;
90 if(!sel)
91 return;
92
93 for(i = 0; i < TLast; i++)
94 sel->tags[i] = NULL;
95 tappend(arg);
96}
97
98static void
99ban_client(Client *c)
100{
101 XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
102 XMoveWindow(dpy, c->title, c->tx + 2 * sw, c->ty);
103}
104
105void
106floating(Arg *arg)
107{
108 Client *c;
109
110 arrange = floating;
111 for(c = clients; c; c = c->next) {
112 if(c->tags[tsel])
113 resize(c, True);
114 else
115 ban_client(c);
116 }
117 if(sel && !sel->tags[tsel]) {
118 if((sel = next(clients))) {
119 craise(sel);
120 focus(sel);
121 }
122 }
123 discard_events(EnterWindowMask);
124}
125
126void
127tiling(Arg *arg)
128{
129 Client *c;
130 int n, i, w, h;
131
132 w = sw - mw;
133 arrange = tiling;
134 for(n = 0, c = clients; c; c = c->next)
135 if(c->tags[tsel] && !c->floating)
136 n++;
137
138 if(n > 1)
139 h = (sh - bh) / (n - 1);
140 else
141 h = sh - bh;
142
143 for(i = 0, c = clients; c; c = c->next) {
144 if(c->tags[tsel]) {
145 if(c->floating) {
146 craise(c);
147 resize(c, True);
148 continue;
149 }
150 if(n == 1) {
151 c->x = sx;
152 c->y = sy + bh;
153 c->w = sw - 2 * c->border;
154 c->h = sh - 2 * c->border - bh;
155 }
156 else if(i == 0) {
157 c->x = sx;
158 c->y = sy + bh;
159 c->w = mw - 2 * c->border;
160 c->h = sh - 2 * c->border - bh;
161 }
162 else {
163 c->x = sx + mw;
164 c->y = sy + (i - 1) * h + bh;
165 c->w = w - 2 * c->border;
166 c->h = h - 2 * c->border;
167 }
168 resize(c, False);
169 i++;
170 }
171 else
172 ban_client(c);
173 }
174 if(sel && !sel->tags[tsel]) {
175 if((sel = next(clients))) {
176 craise(sel);
177 focus(sel);
178 }
179 }
180 discard_events(EnterWindowMask);
181}
182
183void
184prevc(Arg *arg)
185{
186 Client *c;
187
188 if(!sel)
189 return;
190
191 if((c = sel->revert && sel->revert->tags[tsel] ? sel->revert : NULL)) {
192 craise(c);
193 focus(c);
194 }
195}
196
197void
198nextc(Arg *arg)
199{
200 Client *c;
201
202 if(!sel)
203 return;
204
205 if(!(c = next(sel->next)))
206 c = next(clients);
207 if(c) {
208 craise(c);
209 c->revert = sel;
210 focus(c);
211 }
212}
213
214void
215ckill(Arg *arg)
216{
217 if(!sel)
218 return;
219 if(sel->proto & WM_PROTOCOL_DELWIN)
220 send_message(sel->win, wm_atom[WMProtocols], wm_atom[WMDelete]);
221 else
222 XKillClient(dpy, sel->win);
223}
224
225static void
226resize_title(Client *c)
227{
228 int i;
229
230 c->tw = 0;
231 for(i = 0; i < TLast; i++)
232 if(c->tags[i])
233 c->tw += textw(c->tags[i]) + dc.font.height;
234 c->tw += textw(c->name) + dc.font.height;
235 if(c->tw > c->w)
236 c->tw = c->w + 2;
237 c->tx = c->x + c->w - c->tw + 2;
238 c->ty = c->y;
239 XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
240}
241
242void
243update_name(Client *c)
244{
245 XTextProperty name;
246 int n;
247 char **list = NULL;
248
249 name.nitems = 0;
250 c->name[0] = 0;
251 XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
252 if(!name.nitems)
253 XGetWMName(dpy, c->win, &name);
254 if(!name.nitems)
255 return;
256 if(name.encoding == XA_STRING)
257 strncpy(c->name, (char *)name.value, sizeof(c->name));
258 else {
259 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
260 && n > 0 && *list)
261 {
262 strncpy(c->name, *list, sizeof(c->name));
263 XFreeStringList(list);
264 }
265 }
266 XFree(name.value);
267 resize_title(c);
268}
269
270void
271update_size(Client *c)
272{
273 XSizeHints size;
274 long msize;
275 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
276 size.flags = PSize;
277 c->flags = size.flags;
278 if(c->flags & PBaseSize) {
279 c->basew = size.base_width;
280 c->baseh = size.base_height;
281 }
282 else
283 c->basew = c->baseh = 0;
284 if(c->flags & PResizeInc) {
285 c->incw = size.width_inc;
286 c->inch = size.height_inc;
287 }
288 else
289 c->incw = c->inch = 0;
290 if(c->flags & PMaxSize) {
291 c->maxw = size.max_width;
292 c->maxh = size.max_height;
293 }
294 else
295 c->maxw = c->maxh = 0;
296 if(c->flags & PMinSize) {
297 c->minw = size.min_width;
298 c->minh = size.min_height;
299 }
300 else
301 c->minw = c->minh = 0;
302 if(c->flags & PWinGravity)
303 c->grav = size.win_gravity;
304 else
305 c->grav = NorthWestGravity;
306}
307
308void
309craise(Client *c)
310{
311 XRaiseWindow(dpy, c->win);
312 XRaiseWindow(dpy, c->title);
313}
314
315void
316lower(Client *c)
317{
318 XLowerWindow(dpy, c->title);
319 XLowerWindow(dpy, c->win);
320}
321
322void
323focus(Client *c)
324{
325 Client *old = sel;
326
327 sel = c;
328 if(old && old != c)
329 draw_client(old);
330 draw_client(c);
331 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
332 XFlush(dpy);
333 discard_events(EnterWindowMask);
334}
335
336static void
337init_tags(Client *c)
338{
339 XClassHint ch;
340 static unsigned int len = rule ? sizeof(rule) / sizeof(rule[0]) : 0;
341 unsigned int i, j;
342 Bool matched = False;
343
344 if(!len) {
345 c->tags[tsel] = tags[tsel];
346 return;
347 }
348
349 if(XGetClassHint(dpy, c->win, &ch)) {
350 if(ch.res_class && ch.res_name) {
351 for(i = 0; i < len; i++)
352 if(!strncmp(rule[i].class, ch.res_class, sizeof(rule[i].class))
353 && !strncmp(rule[i].instance, ch.res_name, sizeof(rule[i].instance)))
354 {
355 for(j = 0; j < TLast; j++)
356 c->tags[j] = rule[i].tags[j];
357 c->floating = rule[i].floating;
358 matched = True;
359 break;
360 }
361 }
362 if(ch.res_class)
363 XFree(ch.res_class);
364 if(ch.res_name)
365 XFree(ch.res_name);
366 }
367
368 if(!matched)
369 c->tags[tsel] = tags[tsel];
370}
371
372void
373manage(Window w, XWindowAttributes *wa)
374{
375 Client *c, **l;
376 XSetWindowAttributes twa;
377 Window trans;
378
379 c = emallocz(sizeof(Client));
380 c->win = w;
381 c->tx = c->x = wa->x;
382 c->ty = c->y = wa->y;
383 if(c->y < bh)
384 c->ty = c->y += bh;
385 c->tw = c->w = wa->width;
386 c->h = wa->height;
387 c->th = bh;
388 c->border = 1;
389 c->proto = win_proto(c->win);
390 update_size(c);
391 XSelectInput(dpy, c->win,
392 StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
393 XGetTransientForHint(dpy, c->win, &trans);
394 twa.override_redirect = 1;
395 twa.background_pixmap = ParentRelative;
396 twa.event_mask = ExposureMask;
397
398 c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
399 0, DefaultDepth(dpy, screen), CopyFromParent,
400 DefaultVisual(dpy, screen),
401 CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
402
403 update_name(c);
404 init_tags(c);
405
406 for(l = &clients; *l; l = &(*l)->next);
407 c->next = *l; /* *l == nil */
408 *l = c;
409
410 XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
411 GrabModeAsync, GrabModeSync, None, None);
412 XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
413 GrabModeAsync, GrabModeSync, None, None);
414 XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
415 GrabModeAsync, GrabModeSync, None, None);
416
417 if(!c->floating)
418 c->floating = trans
419 || ((c->maxw == c->minw) && (c->maxh == c->minh));
420
421 arrange(NULL);
422 /* mapping the window now prevents flicker */
423 if(c->tags[tsel]) {
424 XMapRaised(dpy, c->win);
425 XMapRaised(dpy, c->title);
426 focus(c);
427 }
428 else {
429 ban_client(c);
430 XMapRaised(dpy, c->win);
431 XMapRaised(dpy, c->title);
432 }
433}
434
435void
436gravitate(Client *c, Bool invert)
437{
438 int dx = 0, dy = 0;
439
440 switch(c->grav) {
441 case StaticGravity:
442 case NorthWestGravity:
443 case NorthGravity:
444 case NorthEastGravity:
445 dy = c->border;
446 break;
447 case EastGravity:
448 case CenterGravity:
449 case WestGravity:
450 dy = -(c->h / 2) + c->border;
451 break;
452 case SouthEastGravity:
453 case SouthGravity:
454 case SouthWestGravity:
455 dy = -c->h;
456 break;
457 default:
458 break;
459 }
460
461 switch (c->grav) {
462 case StaticGravity:
463 case NorthWestGravity:
464 case WestGravity:
465 case SouthWestGravity:
466 dx = c->border;
467 break;
468 case NorthGravity:
469 case CenterGravity:
470 case SouthGravity:
471 dx = -(c->w / 2) + c->border;
472 break;
473 case NorthEastGravity:
474 case EastGravity:
475 case SouthEastGravity:
476 dx = -(c->w + c->border);
477 break;
478 default:
479 break;
480 }
481
482 if(invert) {
483 dx = -dx;
484 dy = -dy;
485 }
486 c->x += dx;
487 c->y += dy;
488}
489
490
491void
492resize(Client *c, Bool inc)
493{
494 XConfigureEvent e;
495
496 if(inc) {
497 if(c->incw)
498 c->w -= (c->w - c->basew) % c->incw;
499 if(c->inch)
500 c->h -= (c->h - c->baseh) % c->inch;
501 }
502 if(c->minw && c->w < c->minw)
503 c->w = c->minw;
504 if(c->minh && c->h < c->minh)
505 c->h = c->minh;
506 if(c->maxw && c->w > c->maxw)
507 c->w = c->maxw;
508 if(c->maxh && c->h > c->maxh)
509 c->h = c->maxh;
510 resize_title(c);
511 XSetWindowBorderWidth(dpy, c->win, 1);
512 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
513 e.type = ConfigureNotify;
514 e.event = c->win;
515 e.window = c->win;
516 e.x = c->x;
517 e.y = c->y;
518 e.width = c->w;
519 e.height = c->h;
520 e.border_width = c->border;
521 e.above = None;
522 e.override_redirect = False;
523 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
524 XFlush(dpy);
525}
526
527static int
528dummy_error_handler(Display *dsply, XErrorEvent *err)
529{
530 return 0;
531}
532
533void
534unmanage(Client *c)
535{
536 Client **l;
537
538 XGrabServer(dpy);
539 XSetErrorHandler(dummy_error_handler);
540
541 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
542 XDestroyWindow(dpy, c->title);
543
544 for(l = &clients; *l && *l != c; l = &(*l)->next);
545 *l = c->next;
546 for(l = &clients; *l; l = &(*l)->next)
547 if((*l)->revert == c)
548 (*l)->revert = NULL;
549 if(sel == c)
550 sel = sel->revert ? sel->revert : clients;
551
552 free(c);
553
554 XFlush(dpy);
555 XSetErrorHandler(error_handler);
556 XUngrabServer(dpy);
557 arrange(NULL);
558 if(sel)
559 focus(sel);
560}
561
562Client *
563gettitle(Window w)
564{
565 Client *c;
566 for(c = clients; c; c = c->next)
567 if(c->title == w)
568 return c;
569 return NULL;
570}
571
572Client *
573getclient(Window w)
574{
575 Client *c;
576 for(c = clients; c; c = c->next)
577 if(c->win == w)
578 return c;
579 return NULL;
580}
581
582void
583draw_client(Client *c)
584{
585 int i;
586 if(c == sel) {
587 draw_bar();
588 XUnmapWindow(dpy, c->title);
589 XSetWindowBorder(dpy, c->win, dc.fg);
590 return;
591 }
592
593 XSetWindowBorder(dpy, c->win, dc.bg);
594 XMapWindow(dpy, c->title);
595
596 dc.x = dc.y = 0;
597
598 dc.w = 0;
599 for(i = 0; i < TLast; i++) {
600 if(c->tags[i]) {
601 dc.x += dc.w;
602 dc.w = textw(c->tags[i]) + dc.font.height;
603 drawtext(c->tags[i], True);
604 }
605 }
606 dc.x += dc.w;
607 dc.w = textw(c->name) + dc.font.height;
608 drawtext(c->name, True);
609 XCopyArea(dpy, dc.drawable, c->title, dc.gc,
610 0, 0, c->tw, c->th, 0, 0);
611 XFlush(dpy);
612}