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 grabbuttons(c, True);
103 drawtitle(c);
104 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
105 }
106 else
107 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
108}
109
110Client *
111getclient(Window w)
112{
113 Client *c;
114
115 for(c = clients; c; c = c->next)
116 if(c->win == w)
117 return c;
118 return NULL;
119}
120
121Client *
122getctitle(Window w)
123{
124 Client *c;
125
126 for(c = clients; c; c = c->next)
127 if(c->twin == w)
128 return c;
129 return NULL;
130}
131
132void
133gravitate(Client *c, Bool invert)
134{
135 int dx = 0, dy = 0;
136
137 switch(c->grav) {
138 default:
139 break;
140 case StaticGravity:
141 case NorthWestGravity:
142 case NorthGravity:
143 case NorthEastGravity:
144 dy = c->border;
145 break;
146 case EastGravity:
147 case CenterGravity:
148 case WestGravity:
149 dy = -(c->h / 2) + c->border;
150 break;
151 case SouthEastGravity:
152 case SouthGravity:
153 case SouthWestGravity:
154 dy = -(c->h);
155 break;
156 }
157
158 switch (c->grav) {
159 default:
160 break;
161 case StaticGravity:
162 case NorthWestGravity:
163 case WestGravity:
164 case SouthWestGravity:
165 dx = c->border;
166 break;
167 case NorthGravity:
168 case CenterGravity:
169 case SouthGravity:
170 dx = -(c->w / 2) + c->border;
171 break;
172 case NorthEastGravity:
173 case EastGravity:
174 case SouthEastGravity:
175 dx = -(c->w + c->border);
176 break;
177 }
178
179 if(invert) {
180 dx = -dx;
181 dy = -dy;
182 }
183 c->x += dx;
184 c->y += dy;
185}
186
187void
188killclient(Arg *arg)
189{
190 if(!sel)
191 return;
192 if(sel->proto & PROTODELWIN)
193 sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
194 else
195 XKillClient(dpy, sel->win);
196}
197
198void
199manage(Window w, XWindowAttributes *wa)
200{
201 unsigned int i;
202 Client *c, *tc;
203 Window trans;
204 XSetWindowAttributes twa;
205
206 c = emallocz(sizeof(Client));
207 c->tags = emallocz(ntags * sizeof(Bool));
208 c->win = w;
209 c->x = c->tx = wa->x;
210 c->y = c->ty = wa->y;
211 c->w = c->tw = wa->width;
212 c->h = wa->height;
213 c->th = bh;
214
215 c->border = 0;
216 setsize(c);
217
218 if(c->x + c->w + 2 > sw)
219 c->x = sw - c->w - 2;
220 if(c->x < 0)
221 c->x = 0;
222 if(c->y + c->h + 2 > sh)
223 c->y = sh - c->h - 2;
224 if(c->h != sh && c->y < bh)
225 c->y = bh;
226
227 c->proto = getproto(c->win);
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 | EnterWindowMask;
234
235 c->twin = 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 grabbuttons(c, False);
241 if((tc = getclient(trans))) /* inherit tags */
242 for(i = 0; i < ntags; i++)
243 c->tags[i] = tc->tags[i];
244 else
245 settags(c);
246 if(!c->isfloat)
247 c->isfloat = trans
248 || (c->maxw && c->minw &&
249 c->maxw == c->minw && c->maxh == c->minh);
250
251 if(clients)
252 clients->prev = c;
253 c->next = clients;
254 clients = c;
255
256 settitle(c);
257 ban(c);
258 XMapWindow(dpy, c->win);
259 XMapWindow(dpy, c->twin);
260 if(isvisible(c))
261 focus(c);
262 arrange(NULL);
263}
264
265void
266resize(Client *c, Bool sizehints, Corner sticky)
267{
268 int bottom = c->y + c->h;
269 int right = c->x + c->w;
270 XWindowChanges wc;
271
272 if(sizehints) {
273 if(c->incw)
274 c->w -= (c->w - c->basew) % c->incw;
275 if(c->inch)
276 c->h -= (c->h - c->baseh) % c->inch;
277 if(c->minw && c->w < c->minw)
278 c->w = c->minw;
279 if(c->minh && c->h < c->minh)
280 c->h = c->minh;
281 if(c->maxw && c->w > c->maxw)
282 c->w = c->maxw;
283 if(c->maxh && c->h > c->maxh)
284 c->h = c->maxh;
285 }
286 if(sticky == TopRight || sticky == BotRight)
287 c->x = right - c->w;
288 if(sticky == BotLeft || sticky == BotRight)
289 c->y = bottom - c->h;
290
291 resizetitle(c);
292 wc.x = c->x;
293 wc.y = c->y;
294 wc.width = c->w;
295 wc.height = c->h;
296 if(c->w == sw && c->h == sh)
297 wc.border_width = 0;
298 else
299 wc.border_width = 1;
300 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
301 XSync(dpy, False);
302}
303
304void
305setsize(Client *c)
306{
307 long msize;
308 XSizeHints size;
309
310 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
311 size.flags = PSize;
312 c->flags = size.flags;
313 if(c->flags & PBaseSize) {
314 c->basew = size.base_width;
315 c->baseh = size.base_height;
316 }
317 else
318 c->basew = c->baseh = 0;
319 if(c->flags & PResizeInc) {
320 c->incw = size.width_inc;
321 c->inch = size.height_inc;
322 }
323 else
324 c->incw = c->inch = 0;
325 if(c->flags & PMaxSize) {
326 c->maxw = size.max_width;
327 c->maxh = size.max_height;
328 }
329 else
330 c->maxw = c->maxh = 0;
331 if(c->flags & PMinSize) {
332 c->minw = size.min_width;
333 c->minh = size.min_height;
334 }
335 else
336 c->minw = c->minh = 0;
337 if(c->flags & PWinGravity)
338 c->grav = size.win_gravity;
339 else
340 c->grav = NorthWestGravity;
341}
342
343void
344settitle(Client *c)
345{
346 char **list = NULL;
347 int n;
348 XTextProperty name;
349
350 name.nitems = 0;
351 c->name[0] = 0;
352 XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
353 if(!name.nitems)
354 XGetWMName(dpy, c->win, &name);
355 if(!name.nitems)
356 return;
357 if(name.encoding == XA_STRING)
358 strncpy(c->name, (char *)name.value, sizeof(c->name));
359 else {
360 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
361 && n > 0 && *list)
362 {
363 strncpy(c->name, *list, sizeof(c->name));
364 XFreeStringList(list);
365 }
366 }
367 XFree(name.value);
368 resizetitle(c);
369}
370
371void
372togglemax(Arg *arg)
373{
374 int ox, oy, ow, oh;
375 Client *c;
376 XEvent ev;
377
378 if(!sel)
379 return;
380
381 if((maximized = !maximized)) {
382 ox = sel->x;
383 oy = sel->y;
384 ow = sel->w;
385 oh = sel->h;
386 sel->x = sx;
387 sel->y = sy + bh;
388 sel->w = sw - 2;
389 sel->h = sh - 2 - bh;
390
391 restack();
392 for(c = getnext(clients); c; c = getnext(c->next))
393 if(c != sel)
394 ban(c);
395 resize(sel, arrange == dofloat, TopLeft);
396
397 sel->x = ox;
398 sel->y = oy;
399 sel->w = ow;
400 sel->h = oh;
401 }
402 else
403 arrange(NULL);
404 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
405}
406
407void
408unmanage(Client *c)
409{
410 Client *tc, *fc;
411 Window trans;
412 XGrabServer(dpy);
413 XSetErrorHandler(xerrordummy);
414
415 detach(c);
416 if(sel == c) {
417 XGetTransientForHint(dpy, c->win, &trans);
418 if(trans && (tc = getclient(trans)) && isvisible(tc))
419 fc = tc;
420 else
421 fc = getnext(clients);
422 focus(fc);
423 }
424
425 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
426 XDestroyWindow(dpy, c->twin);
427
428 free(c->tags);
429 free(c);
430
431 XSync(dpy, False);
432 XSetErrorHandler(xerror);
433 XUngrabServer(dpy);
434 arrange(NULL);
435}