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