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