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#include "dwm.h"
6#include <stdlib.h>
7#include <string.h>
8#include <X11/Xatom.h>
9#include <X11/Xutil.h>
10
11/* static functions */
12
13static void
14resizetitle(Client *c)
15{
16 int i;
17
18 c->tw = 0;
19 for(i = 0; i < ntags; i++)
20 if(c->tags[i])
21 c->tw += textw(tags[i]);
22 c->tw += textw(c->name);
23 if(c->tw > c->w)
24 c->tw = c->w + 2;
25 c->tx = c->x + c->w - c->tw + 2;
26 c->ty = c->y;
27 if(c->tags[tsel])
28 XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
29 else
30 XMoveResizeWindow(dpy, c->title, c->tx + 2 * sw, c->ty, c->tw, c->th);
31
32}
33
34static int
35xerrordummy(Display *dsply, XErrorEvent *ee)
36{
37 return 0;
38}
39
40/* extern functions */
41
42void
43ban(Client *c)
44{
45 XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
46 XMoveWindow(dpy, c->title, c->tx + 2 * sw, c->ty);
47}
48
49void
50focus(Client *c)
51{
52 Client *old = sel;
53 XEvent ev;
54
55 sel = c;
56 if(old && old != c)
57 drawtitle(old);
58 drawtitle(c);
59 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
60 XSync(dpy, False);
61 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
62}
63
64void
65focusnext(Arg *arg)
66{
67 Client *c;
68
69 if(!sel)
70 return;
71
72 if(sel->ismax)
73 togglemax(NULL);
74
75 if(!(c = getnext(sel->next)))
76 c = getnext(clients);
77 if(c) {
78 higher(c);
79 focus(c);
80 }
81}
82
83void
84focusprev(Arg *arg)
85{
86 Client *c;
87
88 if(!sel)
89 return;
90
91 if(sel->ismax)
92 togglemax(NULL);
93
94 if(!(c = getprev(sel->prev))) {
95 for(c = clients; c && c->next; c = c->next);
96 c = getprev(c);
97 }
98 if(c) {
99 higher(c);
100 focus(c);
101 }
102}
103
104Client *
105getclient(Window w)
106{
107 Client *c;
108
109 for(c = clients; c; c = c->next)
110 if(c->win == w)
111 return c;
112 return NULL;
113}
114
115Client *
116getctitle(Window w)
117{
118 Client *c;
119
120 for(c = clients; c; c = c->next)
121 if(c->title == w)
122 return c;
123 return NULL;
124}
125
126void
127gravitate(Client *c, Bool invert)
128{
129 int dx = 0, dy = 0;
130
131 switch(c->grav) {
132 default:
133 break;
134 case StaticGravity:
135 case NorthWestGravity:
136 case NorthGravity:
137 case NorthEastGravity:
138 dy = c->border;
139 break;
140 case EastGravity:
141 case CenterGravity:
142 case WestGravity:
143 dy = -(c->h / 2) + c->border;
144 break;
145 case SouthEastGravity:
146 case SouthGravity:
147 case SouthWestGravity:
148 dy = -(c->h);
149 break;
150 }
151
152 switch (c->grav) {
153 default:
154 break;
155 case StaticGravity:
156 case NorthWestGravity:
157 case WestGravity:
158 case SouthWestGravity:
159 dx = c->border;
160 break;
161 case NorthGravity:
162 case CenterGravity:
163 case SouthGravity:
164 dx = -(c->w / 2) + c->border;
165 break;
166 case NorthEastGravity:
167 case EastGravity:
168 case SouthEastGravity:
169 dx = -(c->w + c->border);
170 break;
171 }
172
173 if(invert) {
174 dx = -dx;
175 dy = -dy;
176 }
177 c->x += dx;
178 c->y += dy;
179}
180
181void
182higher(Client *c)
183{
184 XRaiseWindow(dpy, c->win);
185 XRaiseWindow(dpy, c->title);
186}
187
188void
189killclient(Arg *arg)
190{
191 if(!sel)
192 return;
193 if(sel->proto & PROTODELWIN)
194 sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
195 else
196 XKillClient(dpy, sel->win);
197}
198
199void
200lower(Client *c)
201{
202 XLowerWindow(dpy, c->title);
203 XLowerWindow(dpy, c->win);
204}
205
206void
207manage(Window w, XWindowAttributes *wa)
208{
209 Client *c;
210 Window trans;
211 XSetWindowAttributes twa;
212
213 c = emallocz(sizeof(Client));
214 c->tags = emallocz(ntags * sizeof(Bool));
215 c->win = w;
216 c->x = c->tx = wa->x;
217 c->y = c->ty = wa->y;
218 c->w = c->tw = wa->width;
219 c->h = wa->height;
220 c->th = bh;
221
222 c->border = 0;
223 setsize(c);
224
225 if(c->h != sh && c->y < bh)
226 c->y = c->ty = bh;
227
228 c->proto = getproto(c->win);
229 XSelectInput(dpy, c->win,
230 StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
231 XGetTransientForHint(dpy, c->win, &trans);
232 twa.override_redirect = 1;
233 twa.background_pixmap = ParentRelative;
234 twa.event_mask = ExposureMask | EnterWindowMask;
235
236 c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
237 0, DefaultDepth(dpy, screen), CopyFromParent,
238 DefaultVisual(dpy, screen),
239 CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
240
241 if(clients)
242 clients->prev = c;
243 c->next = clients;
244 clients = c;
245
246 XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
247 GrabModeAsync, GrabModeSync, None, None);
248 XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
249 GrabModeAsync, GrabModeSync, None, None);
250 XGrabButton(dpy, Button1, MODKEY | NUMLOCKMASK, c->win, False, BUTTONMASK,
251 GrabModeAsync, GrabModeSync, None, None);
252 XGrabButton(dpy, Button1, MODKEY | NUMLOCKMASK | LockMask, c->win, False, BUTTONMASK,
253 GrabModeAsync, GrabModeSync, None, None);
254
255 XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
256 GrabModeAsync, GrabModeSync, None, None);
257 XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
258 GrabModeAsync, GrabModeSync, None, None);
259 XGrabButton(dpy, Button2, MODKEY | NUMLOCKMASK, c->win, False, BUTTONMASK,
260 GrabModeAsync, GrabModeSync, None, None);
261 XGrabButton(dpy, Button2, MODKEY | NUMLOCKMASK | LockMask, c->win, False, BUTTONMASK,
262 GrabModeAsync, GrabModeSync, None, None);
263
264 XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
265 GrabModeAsync, GrabModeSync, None, None);
266 XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
267 GrabModeAsync, GrabModeSync, None, None);
268 XGrabButton(dpy, Button3, MODKEY | NUMLOCKMASK, c->win, False, BUTTONMASK,
269 GrabModeAsync, GrabModeSync, None, None);
270 XGrabButton(dpy, Button3, MODKEY | NUMLOCKMASK | LockMask, c->win, False, BUTTONMASK,
271 GrabModeAsync, GrabModeSync, None, None);
272
273 settags(c);
274 if(!c->isfloat)
275 c->isfloat = trans
276 || (c->maxw && c->minw &&
277 c->maxw == c->minw && c->maxh == c->minh);
278 settitle(c);
279 arrange(NULL);
280
281 /* mapping the window now prevents flicker */
282 XMapRaised(dpy, c->win);
283 XMapRaised(dpy, c->title);
284 if(c->tags[tsel])
285 focus(c);
286}
287
288void
289resize(Client *c, Bool sizehints, Corner sticky)
290{
291 int bottom = c->y + c->h;
292 int right = c->x + c->w;
293 /*XConfigureEvent e;*/
294 XWindowChanges wc;
295
296 if(sizehints) {
297 if(c->incw)
298 c->w -= (c->w - c->basew) % c->incw;
299 if(c->inch)
300 c->h -= (c->h - c->baseh) % c->inch;
301 if(c->minw && c->w < c->minw)
302 c->w = c->minw;
303 if(c->minh && c->h < c->minh)
304 c->h = c->minh;
305 if(c->maxw && c->w > c->maxw)
306 c->w = c->maxw;
307 if(c->maxh && c->h > c->maxh)
308 c->h = c->maxh;
309 }
310 if(c->x > right) /* might happen on restart */
311 c->x = right - c->w;
312 if(c->y > bottom)
313 c->y = bottom - c->h;
314 if(sticky == TopRight || sticky == BotRight)
315 c->x = right - c->w;
316 if(sticky == BotLeft || sticky == BotRight)
317 c->y = bottom - c->h;
318
319 resizetitle(c);
320 wc.x = c->x;
321 wc.y = c->y;
322 wc.width = c->w;
323 wc.height = c->h;
324 if(c->w == sw && c->h == sh)
325 wc.border_width = 0;
326 else
327 wc.border_width = 1;
328 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
329 XSync(dpy, False);
330}
331
332void
333setsize(Client *c)
334{
335 long msize;
336 XSizeHints size;
337
338 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
339 size.flags = PSize;
340 c->flags = size.flags;
341 if(c->flags & PBaseSize) {
342 c->basew = size.base_width;
343 c->baseh = size.base_height;
344 }
345 else
346 c->basew = c->baseh = 0;
347 if(c->flags & PResizeInc) {
348 c->incw = size.width_inc;
349 c->inch = size.height_inc;
350 }
351 else
352 c->incw = c->inch = 0;
353 if(c->flags & PMaxSize) {
354 c->maxw = size.max_width;
355 c->maxh = size.max_height;
356 }
357 else
358 c->maxw = c->maxh = 0;
359 if(c->flags & PMinSize) {
360 c->minw = size.min_width;
361 c->minh = size.min_height;
362 }
363 else
364 c->minw = c->minh = 0;
365 if(c->flags & PWinGravity)
366 c->grav = size.win_gravity;
367 else
368 c->grav = NorthWestGravity;
369}
370
371void
372settitle(Client *c)
373{
374 char **list = NULL;
375 int n;
376 XTextProperty name;
377
378 name.nitems = 0;
379 c->name[0] = 0;
380 XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
381 if(!name.nitems)
382 XGetWMName(dpy, c->win, &name);
383 if(!name.nitems)
384 return;
385 if(name.encoding == XA_STRING)
386 strncpy(c->name, (char *)name.value, sizeof(c->name));
387 else {
388 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
389 && n > 0 && *list)
390 {
391 strncpy(c->name, *list, sizeof(c->name));
392 XFreeStringList(list);
393 }
394 }
395 XFree(name.value);
396 resizetitle(c);
397}
398
399void
400togglemax(Arg *arg)
401{
402 int ox, oy, ow, oh;
403 XEvent ev;
404
405 if(!sel)
406 return;
407
408 if((sel->ismax = !sel->ismax)) {
409 ox = sel->x;
410 oy = sel->y;
411 ow = sel->w;
412 oh = sel->h;
413 sel->x = sx;
414 sel->y = sy + bh;
415 sel->w = sw - 2;
416 sel->h = sh - 2 - bh;
417
418 higher(sel);
419 resize(sel, False, TopLeft);
420
421 sel->x = ox;
422 sel->y = oy;
423 sel->w = ow;
424 sel->h = oh;
425 }
426 else
427 resize(sel, False, TopLeft);
428 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
429}
430
431void
432unmanage(Client *c)
433{
434 XGrabServer(dpy);
435 XSetErrorHandler(xerrordummy);
436
437 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
438 XDestroyWindow(dpy, c->title);
439
440 if(c->prev)
441 c->prev->next = c->next;
442 if(c->next)
443 c->next->prev = c->prev;
444 if(c == clients)
445 clients = c->next;
446 if(sel == c) {
447 sel = getnext(c->next);
448 if(!sel)
449 sel = getprev(c->prev);
450 if(!sel)
451 sel = clients;
452 }
453 free(c->tags);
454 free(c);
455
456 XSync(dpy, False);
457 XSetErrorHandler(xerror);
458 XUngrabServer(dpy);
459 arrange(NULL);
460 if(sel)
461 focus(sel);
462}
463
464void
465zoom(Arg *arg)
466{
467 Client *c;
468
469 if(!sel || (arrange != dotile) || sel->isfloat)
470 return;
471
472 if(sel == getnext(clients)) {
473 if((c = getnext(sel->next)))
474 sel = c;
475 else
476 return;
477 }
478
479 /* pop */
480 if(sel->prev)
481 sel->prev->next = sel->next;
482 if(sel->next)
483 sel->next->prev = sel->prev;
484 sel->prev = NULL;
485 if(clients)
486 clients->prev = sel;
487 sel->next = clients;
488 clients = sel;
489 arrange(NULL);
490 focus(sel);
491}