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) && (c != clients)) {
103 detach(c);
104 if(clients) {
105 clients->prev = c;
106 c->next = clients;
107 }
108 clients = c;
109 }
110 grabbuttons(c, True);
111 drawtitle(c);
112 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
113 }
114 else
115 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
116}
117
118Client *
119getclient(Window w)
120{
121 Client *c;
122
123 for(c = clients; c; c = c->next)
124 if(c->win == w)
125 return c;
126 return NULL;
127}
128
129Client *
130getctitle(Window w)
131{
132 Client *c;
133
134 for(c = clients; c; c = c->next)
135 if(c->twin == w)
136 return c;
137 return NULL;
138}
139
140void
141gravitate(Client *c, Bool invert)
142{
143 int dx = 0, dy = 0;
144
145 switch(c->grav) {
146 default:
147 break;
148 case StaticGravity:
149 case NorthWestGravity:
150 case NorthGravity:
151 case NorthEastGravity:
152 dy = c->border;
153 break;
154 case EastGravity:
155 case CenterGravity:
156 case WestGravity:
157 dy = -(c->h / 2) + c->border;
158 break;
159 case SouthEastGravity:
160 case SouthGravity:
161 case SouthWestGravity:
162 dy = -(c->h);
163 break;
164 }
165
166 switch (c->grav) {
167 default:
168 break;
169 case StaticGravity:
170 case NorthWestGravity:
171 case WestGravity:
172 case SouthWestGravity:
173 dx = c->border;
174 break;
175 case NorthGravity:
176 case CenterGravity:
177 case SouthGravity:
178 dx = -(c->w / 2) + c->border;
179 break;
180 case NorthEastGravity:
181 case EastGravity:
182 case SouthEastGravity:
183 dx = -(c->w + c->border);
184 break;
185 }
186
187 if(invert) {
188 dx = -dx;
189 dy = -dy;
190 }
191 c->x += dx;
192 c->y += dy;
193}
194
195void
196killclient(Arg *arg)
197{
198 if(!sel)
199 return;
200 if(sel->proto & PROTODELWIN)
201 sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
202 else
203 XKillClient(dpy, sel->win);
204}
205
206void
207manage(Window w, XWindowAttributes *wa)
208{
209 unsigned int i;
210 Client *c;
211 Window trans;
212 XSetWindowAttributes twa;
213
214 c = emallocz(sizeof(Client));
215 c->tags = emallocz(ntags * sizeof(Bool));
216 c->win = w;
217 c->x = c->tx = wa->x;
218 c->y = c->ty = wa->y;
219 c->w = c->tw = wa->width;
220 c->h = wa->height;
221 c->th = bh;
222
223 c->border = 0;
224 setsize(c);
225
226 if(c->x + c->w + 2 > sw)
227 c->x = sw - c->w - 2;
228 if(c->x < 0)
229 c->x = 0;
230 if(c->y + c->h + 2 > sh)
231 c->y = sh - c->h - 2;
232 if(c->h != sh && c->y < bh)
233 c->y = bh;
234
235 c->proto = getproto(c->win);
236 XSelectInput(dpy, c->win,
237 StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
238 XGetTransientForHint(dpy, c->win, &trans);
239 twa.override_redirect = 1;
240 twa.background_pixmap = ParentRelative;
241 twa.event_mask = ExposureMask | EnterWindowMask;
242
243 c->twin = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
244 0, DefaultDepth(dpy, screen), CopyFromParent,
245 DefaultVisual(dpy, screen),
246 CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
247
248 grabbuttons(c, False);
249 settags(c, getclient(trans));
250 if(!c->isfloat)
251 c->isfloat = trans
252 || (c->maxw && c->minw &&
253 c->maxw == c->minw && c->maxh == c->minh);
254
255 if(clients)
256 clients->prev = c;
257 c->next = clients;
258 clients = c;
259
260 settitle(c);
261 ban(c);
262 XMapWindow(dpy, c->win);
263 XMapWindow(dpy, c->twin);
264 if(isvisible(c))
265 focus(c);
266 arrange(NULL);
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 wc.x = c->x;
297 wc.y = c->y;
298 wc.width = c->w;
299 wc.height = c->h;
300 if(c->w == sw && c->h == sh)
301 wc.border_width = 0;
302 else
303 wc.border_width = 1;
304 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
305 XSync(dpy, False);
306}
307
308void
309setsize(Client *c)
310{
311 long msize;
312 XSizeHints size;
313
314 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
315 size.flags = PSize;
316 c->flags = size.flags;
317 if(c->flags & PBaseSize) {
318 c->basew = size.base_width;
319 c->baseh = size.base_height;
320 }
321 else
322 c->basew = c->baseh = 0;
323 if(c->flags & PResizeInc) {
324 c->incw = size.width_inc;
325 c->inch = size.height_inc;
326 }
327 else
328 c->incw = c->inch = 0;
329 if(c->flags & PMaxSize) {
330 c->maxw = size.max_width;
331 c->maxh = size.max_height;
332 }
333 else
334 c->maxw = c->maxh = 0;
335 if(c->flags & PMinSize) {
336 c->minw = size.min_width;
337 c->minh = size.min_height;
338 }
339 else
340 c->minw = c->minh = 0;
341 if(c->flags & PWinGravity)
342 c->grav = size.win_gravity;
343 else
344 c->grav = NorthWestGravity;
345}
346
347void
348settitle(Client *c)
349{
350 char **list = NULL;
351 int n;
352 XTextProperty name;
353
354 name.nitems = 0;
355 c->name[0] = 0;
356 XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
357 if(!name.nitems)
358 XGetWMName(dpy, c->win, &name);
359 if(!name.nitems)
360 return;
361 if(name.encoding == XA_STRING)
362 strncpy(c->name, (char *)name.value, sizeof(c->name));
363 else {
364 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
365 && n > 0 && *list)
366 {
367 strncpy(c->name, *list, sizeof(c->name));
368 XFreeStringList(list);
369 }
370 }
371 XFree(name.value);
372 resizetitle(c);
373}
374
375void
376togglemax(Arg *arg)
377{
378 int ox, oy, ow, oh;
379 Client *c;
380 XEvent ev;
381
382 if(!sel)
383 return;
384
385 if((maximized = !maximized)) {
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;
393 sel->h = sh - 2 - bh;
394
395 restack();
396 for(c = getnext(clients); c; c = getnext(c->next))
397 if(c != sel)
398 ban(c);
399 resize(sel, arrange == dofloat, TopLeft);
400
401 sel->x = ox;
402 sel->y = oy;
403 sel->w = ow;
404 sel->h = oh;
405 }
406 else
407 arrange(NULL);
408 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
409}
410
411void
412unmanage(Client *c)
413{
414 Client *tc, *fc;
415 Window trans;
416 XGrabServer(dpy);
417 XSetErrorHandler(xerrordummy);
418
419 detach(c);
420 if(sel == c) {
421 XGetTransientForHint(dpy, c->win, &trans);
422 if(trans && (tc = getclient(trans)) && isvisible(tc))
423 fc = tc;
424 else
425 fc = getnext(clients);
426 focus(fc);
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}