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