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