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 = sel;
86
87 if(!issel)
88 return;
89 if(!sel)
90 sel = c;
91 else if(sel != c) {
92 if(sel->ismax)
93 togglemax(NULL);
94 sel = c;
95 grabbuttons(old, False);
96 drawtitle(old);
97 }
98 grabbuttons(c, True);
99 drawtitle(c);
100 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
101}
102
103Client *
104getclient(Window w)
105{
106 Client *c;
107
108 for(c = clients; c; c = c->next)
109 if(c->win == w)
110 return c;
111 return NULL;
112}
113
114Client *
115getctitle(Window w)
116{
117 Client *c;
118
119 for(c = clients; c; c = c->next)
120 if(c->twin == w)
121 return c;
122 return NULL;
123}
124
125void
126gravitate(Client *c, Bool invert)
127{
128 int dx = 0, dy = 0;
129
130 switch(c->grav) {
131 default:
132 break;
133 case StaticGravity:
134 case NorthWestGravity:
135 case NorthGravity:
136 case NorthEastGravity:
137 dy = c->border;
138 break;
139 case EastGravity:
140 case CenterGravity:
141 case WestGravity:
142 dy = -(c->h / 2) + c->border;
143 break;
144 case SouthEastGravity:
145 case SouthGravity:
146 case SouthWestGravity:
147 dy = -(c->h);
148 break;
149 }
150
151 switch (c->grav) {
152 default:
153 break;
154 case StaticGravity:
155 case NorthWestGravity:
156 case WestGravity:
157 case SouthWestGravity:
158 dx = c->border;
159 break;
160 case NorthGravity:
161 case CenterGravity:
162 case SouthGravity:
163 dx = -(c->w / 2) + c->border;
164 break;
165 case NorthEastGravity:
166 case EastGravity:
167 case SouthEastGravity:
168 dx = -(c->w + c->border);
169 break;
170 }
171
172 if(invert) {
173 dx = -dx;
174 dy = -dy;
175 }
176 c->x += dx;
177 c->y += dy;
178}
179
180void
181killclient(Arg *arg)
182{
183 if(!sel)
184 return;
185 if(sel->proto & PROTODELWIN)
186 sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
187 else
188 XKillClient(dpy, sel->win);
189}
190
191void
192manage(Window w, XWindowAttributes *wa)
193{
194 unsigned int i;
195 Client *c, *tc;
196 Window trans;
197 XSetWindowAttributes twa;
198
199 c = emallocz(sizeof(Client));
200 c->tags = emallocz(ntags * sizeof(Bool));
201 c->win = w;
202 c->x = c->tx = wa->x;
203 c->y = c->ty = wa->y;
204 c->w = c->tw = wa->width;
205 c->h = wa->height;
206 c->th = bh;
207
208 c->border = 0;
209 setsize(c);
210
211 if(c->x + c->w + 2 > sw)
212 c->x = sw - c->w - 2;
213 if(c->x < 0)
214 c->x = 0;
215 if(c->y + c->h + 2 > sh)
216 c->y = sh - c->h - 2;
217 if(c->h != sh && c->y < bh)
218 c->y = bh;
219
220 c->proto = getproto(c->win);
221 XSelectInput(dpy, c->win,
222 StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
223 XGetTransientForHint(dpy, c->win, &trans);
224 twa.override_redirect = 1;
225 twa.background_pixmap = ParentRelative;
226 twa.event_mask = ExposureMask | EnterWindowMask;
227
228 c->twin = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
229 0, DefaultDepth(dpy, screen), CopyFromParent,
230 DefaultVisual(dpy, screen),
231 CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
232
233 grabbuttons(c, False);
234 if((tc = getclient(trans))) /* inherit tags */
235 for(i = 0; i < ntags; i++)
236 c->tags[i] = tc->tags[i];
237 else
238 settags(c);
239 if(!c->isfloat)
240 c->isfloat = trans
241 || (c->maxw && c->minw &&
242 c->maxw == c->minw && c->maxh == c->minh);
243
244 if(clients)
245 clients->prev = c;
246 c->next = clients;
247 clients = c;
248
249 settitle(c);
250 if(isvisible(c))
251 sel = c;
252 arrange(NULL);
253 XMapWindow(dpy, c->win);
254 XMapWindow(dpy, c->twin);
255 if(isvisible(c))
256 focus(c);
257}
258
259void
260resize(Client *c, Bool sizehints, Corner sticky)
261{
262 int bottom = c->y + c->h;
263 int right = c->x + c->w;
264 XWindowChanges wc;
265
266 if(sizehints) {
267 if(c->incw)
268 c->w -= (c->w - c->basew) % c->incw;
269 if(c->inch)
270 c->h -= (c->h - c->baseh) % c->inch;
271 if(c->minw && c->w < c->minw)
272 c->w = c->minw;
273 if(c->minh && c->h < c->minh)
274 c->h = c->minh;
275 if(c->maxw && c->w > c->maxw)
276 c->w = c->maxw;
277 if(c->maxh && c->h > c->maxh)
278 c->h = c->maxh;
279 }
280 if(sticky == TopRight || sticky == BotRight)
281 c->x = right - c->w;
282 if(sticky == BotLeft || sticky == BotRight)
283 c->y = bottom - c->h;
284
285 resizetitle(c);
286 wc.x = c->x;
287 wc.y = c->y;
288 wc.width = c->w;
289 wc.height = c->h;
290 if(c->w == sw && c->h == sh)
291 wc.border_width = 0;
292 else
293 wc.border_width = 1;
294 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
295 XSync(dpy, False);
296}
297
298void
299setsize(Client *c)
300{
301 long msize;
302 XSizeHints size;
303
304 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
305 size.flags = PSize;
306 c->flags = size.flags;
307 if(c->flags & PBaseSize) {
308 c->basew = size.base_width;
309 c->baseh = size.base_height;
310 }
311 else
312 c->basew = c->baseh = 0;
313 if(c->flags & PResizeInc) {
314 c->incw = size.width_inc;
315 c->inch = size.height_inc;
316 }
317 else
318 c->incw = c->inch = 0;
319 if(c->flags & PMaxSize) {
320 c->maxw = size.max_width;
321 c->maxh = size.max_height;
322 }
323 else
324 c->maxw = c->maxh = 0;
325 if(c->flags & PMinSize) {
326 c->minw = size.min_width;
327 c->minh = size.min_height;
328 }
329 else
330 c->minw = c->minh = 0;
331 if(c->flags & PWinGravity)
332 c->grav = size.win_gravity;
333 else
334 c->grav = NorthWestGravity;
335}
336
337void
338settitle(Client *c)
339{
340 char **list = NULL;
341 int n;
342 XTextProperty name;
343
344 name.nitems = 0;
345 c->name[0] = 0;
346 XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
347 if(!name.nitems)
348 XGetWMName(dpy, c->win, &name);
349 if(!name.nitems)
350 return;
351 if(name.encoding == XA_STRING)
352 strncpy(c->name, (char *)name.value, sizeof(c->name));
353 else {
354 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
355 && n > 0 && *list)
356 {
357 strncpy(c->name, *list, sizeof(c->name));
358 XFreeStringList(list);
359 }
360 }
361 XFree(name.value);
362 resizetitle(c);
363}
364
365void
366togglemax(Arg *arg)
367{
368 int ox, oy, ow, oh;
369 XEvent ev;
370
371 if(!sel)
372 return;
373
374 if((sel->ismax = !sel->ismax)) {
375 ox = sel->x;
376 oy = sel->y;
377 ow = sel->w;
378 oh = sel->h;
379 sel->x = sx;
380 sel->y = sy + bh;
381 sel->w = sw - 2;
382 sel->h = sh - 2 - bh;
383
384 restack();
385 resize(sel, arrange == dofloat, TopLeft);
386
387 sel->x = ox;
388 sel->y = oy;
389 sel->w = ow;
390 sel->h = oh;
391 }
392 else
393 resize(sel, False, TopLeft);
394 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
395}
396
397void
398unmanage(Client *c)
399{
400 Client *tc;
401 Window trans;
402 XGrabServer(dpy);
403 XSetErrorHandler(xerrordummy);
404
405 XGetTransientForHint(dpy, c->win, &trans);
406
407 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
408 XDestroyWindow(dpy, c->twin);
409
410 detach(c);
411 if(sel == c) {
412 if(trans && (tc = getclient(trans)) && isvisible(tc))
413 sel = tc;
414 else
415 sel = getnext(clients);
416 }
417 free(c->tags);
418 free(c);
419
420 XSync(dpy, False);
421 XSetErrorHandler(xerror);
422 XUngrabServer(dpy);
423 if(sel)
424 focus(sel);
425 arrange(NULL);
426}