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