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