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