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