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