dwm.c (55640B)
1 /* See LICENSE file for copyright and license details. 2 * 3 * dynamic window manager is designed like any other X client as well. It is 4 * driven through handling X events. In contrast to other X clients, a window 5 * manager selects for SubstructureRedirectMask on the root window, to receive 6 * events about window (dis-)appearance. Only one X connection at a time is 7 * allowed to select for this event mask. 8 * 9 * The event handlers of dwm are organized in an array which is accessed 10 * whenever a new event has been fetched. This allows event dispatching 11 * in O(1) time. 12 * 13 * Each child of the root window is called a client, except windows which have 14 * set the override_redirect flag. Clients are organized in a linked client 15 * list on each monitor, the focus history is remembered through a stack list 16 * on each monitor. Each client contains a bit array to indicate the tags of a 17 * client. 18 * 19 * Keys and tagging rules are organized as arrays and defined in config.h. 20 * 21 * To understand everything else, start reading main(). 22 */ 23 24 /* macros */ 25 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask) 26 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask)) 27 #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \ 28 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy))) 29 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags])) 30 #define MOUSEMASK (BUTTONMASK|PointerMotionMask) 31 #define WIDTH(X) ((X)->w + 2 * (X)->bw) 32 #define HEIGHT(X) ((X)->h + 2 * (X)->bw) 33 #define NUMTAGS (LENGTH(tags) + LENGTH(scratchpads)) 34 #define TAGMASK ((1 << NUMTAGS) - 1) 35 #define SPTAG(i) ((1 << LENGTH(tags)) << (i)) 36 #define SPTAGMASK (((1 << LENGTH(scratchpads))-1) << LENGTH(tags)) 37 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 38 39 /* enums */ 40 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ 41 enum { SchemeNorm, SchemeSel, SchemeWarn, SchemeUrgent }; /* color schemes */ 42 enum { NetSupported, NetWMName, NetWMState, NetWMCheck, 43 NetWMFullscreen, NetActiveWindow, NetWMWindowType, 44 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ 45 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */ 46 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, 47 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */ 48 49 typedef union { 50 int i; 51 unsigned int ui; 52 float f; 53 const void *v; 54 } Arg; 55 56 typedef struct { 57 unsigned int click; 58 unsigned int mask; 59 unsigned int button; 60 void (*func)(const Arg *arg); 61 const Arg arg; 62 } Button; 63 64 typedef struct Monitor Monitor; 65 typedef struct Client Client; 66 struct Client { 67 char name[256]; 68 float mina, maxa; 69 int x, y, w, h; 70 int oldx, oldy, oldw, oldh; 71 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid; 72 int bw, oldbw; 73 unsigned int tags; 74 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen; 75 Client *next; 76 Client *snext; 77 Monitor *mon; 78 Window win; 79 }; 80 81 typedef struct { 82 unsigned int mod; 83 KeySym keysym; 84 void (*func)(const Arg *); 85 const Arg arg; 86 } Key; 87 88 typedef struct { 89 const char *symbol; 90 void (*arrange)(Monitor *); 91 } Layout; 92 93 struct Monitor { 94 char ltsymbol[16]; 95 float mfact; 96 int nmaster; 97 int num; 98 int by; /* bar geometry */ 99 int mx, my, mw, mh; /* screen size */ 100 int wx, wy, ww, wh; /* window area */ 101 int gappih; /* horizontal gap between windows */ 102 int gappiv; /* vertical gap between windows */ 103 int gappoh; /* horizontal outer gaps */ 104 int gappov; /* vertical outer gaps */ 105 unsigned int seltags; 106 unsigned int sellt; 107 unsigned int tagset[2]; 108 int showbar; 109 int topbar; 110 Client *clients; 111 Client *sel; 112 Client *stack; 113 Monitor *next; 114 Window barwin; 115 const Layout *lt[2]; 116 }; 117 118 typedef struct { 119 const char *class; 120 const char *instance; 121 const char *title; 122 unsigned int tags; 123 int isfloating; 124 int monitor; 125 } Rule; 126 127 /* function declarations */ 128 static void applyrules(Client *c); 129 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact); 130 static void arrange(Monitor *m); 131 static void arrangemon(Monitor *m); 132 static void attach(Client *c); 133 static void attachstack(Client *c); 134 static void buttonpress(XEvent *e); 135 static void checkotherwm(void); 136 static void cleanup(void); 137 static void cleanupmon(Monitor *mon); 138 static void clientmessage(XEvent *e); 139 static void configure(Client *c); 140 static void configurenotify(XEvent *e); 141 static void configurerequest(XEvent *e); 142 static Monitor *createmon(void); 143 static void destroynotify(XEvent *e); 144 static void detach(Client *c); 145 static void detachstack(Client *c); 146 static Monitor *dirtomon(int dir); 147 static void drawbar(Monitor *m); 148 static void drawbars(void); 149 static void enternotify(XEvent *e); 150 static void expose(XEvent *e); 151 static void focus(Client *c); 152 static void focusin(XEvent *e); 153 static void focusmon(const Arg *arg); 154 static void focusstack(const Arg *arg); 155 static Atom getatomprop(Client *c, Atom prop); 156 static int getrootptr(int *x, int *y); 157 static long getstate(Window w); 158 static int gettextprop(Window w, Atom atom, char *text, unsigned int size); 159 static void grabbuttons(Client *c, int focused); 160 static void grabkeys(void); 161 static void incnmaster(const Arg *arg); 162 static void keypress(XEvent *e); 163 static void killclient(const Arg *arg); 164 static void manage(Window w, XWindowAttributes *wa); 165 static void mappingnotify(XEvent *e); 166 static void maprequest(XEvent *e); 167 static void monocle(Monitor *m); 168 static void motionnotify(XEvent *e); 169 static void movemouse(const Arg *arg); 170 static Client *nexttiled(Client *c); 171 static void pop(Client *c); 172 static void propertynotify(XEvent *e); 173 static void quit(const Arg *arg); 174 static Monitor *recttomon(int x, int y, int w, int h); 175 static void resize(Client *c, int x, int y, int w, int h, int interact); 176 static void resizeclient(Client *c, int x, int y, int w, int h); 177 static void resizemouse(const Arg *arg); 178 static void restack(Monitor *m); 179 static void run(void); 180 static void scan(void); 181 static int sendevent(Client *c, Atom proto); 182 static void sendmon(Client *c, Monitor *m); 183 static void setclientstate(Client *c, long state); 184 static void setfocus(Client *c); 185 static void setfullscreen(Client *c, int fullscreen); 186 static void setlayout(const Arg *arg); 187 static void nextlayout(const Arg *arg); 188 static void prevlayout(const Arg *arg); 189 static void setmfact(const Arg *arg); 190 static void setup(void); 191 static void seturgent(Client *c, int urg); 192 static void showhide(Client *c); 193 static void spawn(const Arg *arg); 194 static void tag(const Arg *arg); 195 static void tagmon(const Arg *arg); 196 static void togglebar(const Arg *arg); 197 static void togglefakefull(const Arg *arg); 198 static void togglefloating(const Arg *arg); 199 static void togglefullscr(const Arg *arg); 200 static void togglescratch(const Arg *arg); 201 static void toggletag(const Arg *arg); 202 static void toggleview(const Arg *arg); 203 static void unfocus(Client *c, int setfocus); 204 static void unmanage(Client *c, int destroyed); 205 static void unmapnotify(XEvent *e); 206 static void updatebarpos(Monitor *m); 207 static void updatebars(void); 208 static void updateclientlist(void); 209 static int updategeom(void); 210 static void updatenumlockmask(void); 211 static void updatesizehints(Client *c); 212 static void updatestatus(void); 213 static void updatetitle(Client *c); 214 static void updatewindowtype(Client *c); 215 static void updatewmhints(Client *c); 216 static void view(const Arg *arg); 217 static Client *wintoclient(Window w); 218 static Monitor *wintomon(Window w); 219 static int xerror(Display *dpy, XErrorEvent *ee); 220 static int xerrordummy(Display *dpy, XErrorEvent *ee); 221 static int xerrorstart(Display *dpy, XErrorEvent *ee); 222 static void zoom(const Arg *arg); 223 224 /* variables */ 225 static const char broken[] = "broken"; 226 static char stext[256]; 227 static int screen; 228 static int sw, sh; /* X display screen geometry width, height */ 229 static int bh; /* bar height */ 230 static int lrpad; /* sum of left and right padding for text */ 231 static int (*xerrorxlib)(Display *, XErrorEvent *); 232 static unsigned int numlockmask = 0; 233 static void (*handler[LASTEvent]) (XEvent *) = { 234 [ButtonPress] = buttonpress, 235 [ClientMessage] = clientmessage, 236 [ConfigureRequest] = configurerequest, 237 [ConfigureNotify] = configurenotify, 238 [DestroyNotify] = destroynotify, 239 [EnterNotify] = enternotify, 240 [Expose] = expose, 241 [FocusIn] = focusin, 242 [KeyPress] = keypress, 243 [MappingNotify] = mappingnotify, 244 [MapRequest] = maprequest, 245 [MotionNotify] = motionnotify, 246 [PropertyNotify] = propertynotify, 247 [UnmapNotify] = unmapnotify 248 }; 249 static Atom wmatom[WMLast], netatom[NetLast]; 250 static int running = 1; 251 static Cur *cursor[CurLast]; 252 static Clr **scheme; 253 static Display *dpy; 254 static Drw *drw; 255 static Monitor *mons, *selmon; 256 static Window root, wmcheckwin; 257 258 /* configuration, allows nested code to access above variables */ 259 #include "config.h" 260 261 /* compile-time check if all tags fit into an unsigned int bit array. */ 262 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; 263 264 /* function implementations */ 265 void 266 applyrules(Client *c) 267 { 268 const char *class, *instance; 269 unsigned int i; 270 const Rule *r; 271 Monitor *m; 272 XClassHint ch = { NULL, NULL }; 273 274 /* rule matching */ 275 c->isfloating = 0; 276 c->tags = 0; 277 XGetClassHint(dpy, c->win, &ch); 278 class = ch.res_class ? ch.res_class : broken; 279 instance = ch.res_name ? ch.res_name : broken; 280 281 for (i = 0; i < LENGTH(rules); i++) { 282 r = &rules[i]; 283 if ((!r->title || strstr(c->name, r->title)) 284 && (!r->class || strstr(class, r->class)) 285 && (!r->instance || strstr(instance, r->instance))) 286 { 287 c->isfloating = r->isfloating; 288 c->tags |= r->tags; 289 if ((r->tags & SPTAGMASK) && r->isfloating) { 290 c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2); 291 c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2); 292 } 293 294 for (m = mons; m && m->num != r->monitor; m = m->next); 295 if (m) 296 c->mon = m; 297 } 298 } 299 if (ch.res_class) 300 XFree(ch.res_class); 301 if (ch.res_name) 302 XFree(ch.res_name); 303 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : (c->mon->tagset[c->mon->seltags] & ~SPTAGMASK); 304 } 305 306 int 307 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) 308 { 309 int baseismin; 310 Monitor *m = c->mon; 311 312 /* set minimum possible */ 313 *w = MAX(1, *w); 314 *h = MAX(1, *h); 315 if (interact) { 316 if (*x > sw) 317 *x = sw - WIDTH(c); 318 if (*y > sh) 319 *y = sh - HEIGHT(c); 320 if (*x + *w + 2 * c->bw < 0) 321 *x = 0; 322 if (*y + *h + 2 * c->bw < 0) 323 *y = 0; 324 } else { 325 if (*x >= m->wx + m->ww) 326 *x = m->wx + m->ww - WIDTH(c); 327 if (*y >= m->wy + m->wh) 328 *y = m->wy + m->wh - HEIGHT(c); 329 if (*x + *w + 2 * c->bw <= m->wx) 330 *x = m->wx; 331 if (*y + *h + 2 * c->bw <= m->wy) 332 *y = m->wy; 333 } 334 if (*h < bh) 335 *h = bh; 336 if (*w < bh) 337 *w = bh; 338 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { 339 if (!c->hintsvalid) 340 updatesizehints(c); 341 /* see last two sentences in ICCCM 4.1.2.3 */ 342 baseismin = c->basew == c->minw && c->baseh == c->minh; 343 if (!baseismin) { /* temporarily remove base dimensions */ 344 *w -= c->basew; 345 *h -= c->baseh; 346 } 347 /* adjust for aspect limits */ 348 if (c->mina > 0 && c->maxa > 0) { 349 if (c->maxa < (float)*w / *h) 350 *w = *h * c->maxa + 0.5; 351 else if (c->mina < (float)*h / *w) 352 *h = *w * c->mina + 0.5; 353 } 354 if (baseismin) { /* increment calculation requires this */ 355 *w -= c->basew; 356 *h -= c->baseh; 357 } 358 /* adjust for increment value */ 359 if (c->incw) 360 *w -= *w % c->incw; 361 if (c->inch) 362 *h -= *h % c->inch; 363 /* restore base dimensions */ 364 *w = MAX(*w + c->basew, c->minw); 365 *h = MAX(*h + c->baseh, c->minh); 366 if (c->maxw) 367 *w = MIN(*w, c->maxw); 368 if (c->maxh) 369 *h = MIN(*h, c->maxh); 370 } 371 return *x != c->x || *y != c->y || *w != c->w || *h != c->h; 372 } 373 374 void 375 arrange(Monitor *m) 376 { 377 if (m) 378 showhide(m->stack); 379 else for (m = mons; m; m = m->next) 380 showhide(m->stack); 381 if (m) { 382 arrangemon(m); 383 restack(m); 384 } else for (m = mons; m; m = m->next) 385 arrangemon(m); 386 } 387 388 void 389 arrangemon(Monitor *m) 390 { 391 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof(m->ltsymbol) - 1); 392 m->ltsymbol[sizeof(m->ltsymbol) - 1] = '\0'; 393 if (m->lt[m->sellt]->arrange) 394 m->lt[m->sellt]->arrange(m); 395 } 396 397 void 398 attach(Client *c) 399 { 400 c->next = c->mon->clients; 401 c->mon->clients = c; 402 } 403 404 void 405 attachstack(Client *c) 406 { 407 c->snext = c->mon->stack; 408 c->mon->stack = c; 409 } 410 411 void 412 buttonpress(XEvent *e) 413 { 414 unsigned int i, x, click, occ = 0; 415 Arg arg = {0}; 416 Client *c; 417 Monitor *m; 418 XButtonPressedEvent *ev = &e->xbutton; 419 420 click = ClkRootWin; 421 /* focus monitor if necessary */ 422 if ((m = wintomon(ev->window)) && m != selmon) { 423 unfocus(selmon->sel, 1); 424 selmon = m; 425 focus(NULL); 426 } 427 if (ev->window == selmon->barwin) { 428 i = x = 0; 429 for (c = m->clients; c; c = c->next) 430 occ |= c->tags == 255 ? 0 : c->tags; 431 do { 432 /* do not reserve space for vacant tags */ 433 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i)) 434 continue; 435 x += TEXTW(tags[i]); 436 } while (ev->x >= x && ++i < LENGTH(tags)); 437 if (i < LENGTH(tags)) { 438 click = ClkTagBar; 439 arg.ui = 1 << i; 440 } else if (ev->x < x + TEXTW(selmon->ltsymbol)) 441 click = ClkLtSymbol; 442 else if (ev->x > selmon->ww - (int)TEXTW(stext) + lrpad - 2) 443 click = ClkStatusText; 444 else 445 click = ClkWinTitle; 446 } else if ((c = wintoclient(ev->window))) { 447 focus(c); 448 restack(selmon); 449 XAllowEvents(dpy, ReplayPointer, CurrentTime); 450 click = ClkClientWin; 451 } 452 for (i = 0; i < LENGTH(buttons); i++) 453 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button 454 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) 455 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); 456 } 457 458 void 459 checkotherwm(void) 460 { 461 xerrorxlib = XSetErrorHandler(xerrorstart); 462 /* this causes an error if some other window manager is running */ 463 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); 464 XSync(dpy, False); 465 XSetErrorHandler(xerror); 466 XSync(dpy, False); 467 } 468 469 void 470 cleanup(void) 471 { 472 Arg a = {.ui = ~0}; 473 Layout foo = { "", NULL }; 474 Monitor *m; 475 size_t i; 476 477 view(&a); 478 selmon->lt[selmon->sellt] = &foo; 479 for (m = mons; m; m = m->next) 480 while (m->stack) 481 unmanage(m->stack, 0); 482 XUngrabKey(dpy, AnyKey, AnyModifier, root); 483 while (mons) 484 cleanupmon(mons); 485 for (i = 0; i < CurLast; i++) 486 drw_cur_free(drw, cursor[i]); 487 for (i = 0; i < LENGTH(colors); i++) 488 drw_scm_free(drw, scheme[i], 3); 489 free(scheme); 490 XDestroyWindow(dpy, wmcheckwin); 491 drw_free(drw); 492 XSync(dpy, False); 493 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); 494 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 495 } 496 497 void 498 cleanupmon(Monitor *mon) 499 { 500 Monitor *m; 501 502 if (mon == mons) 503 mons = mons->next; 504 else { 505 for (m = mons; m && m->next != mon; m = m->next); 506 m->next = mon->next; 507 } 508 XUnmapWindow(dpy, mon->barwin); 509 XDestroyWindow(dpy, mon->barwin); 510 free(mon); 511 } 512 513 void 514 clientmessage(XEvent *e) 515 { 516 XClientMessageEvent *cme = &e->xclient; 517 Client *c = wintoclient(cme->window); 518 519 if (!c) 520 return; 521 if (cme->message_type == netatom[NetWMState]) { 522 if (cme->data.l[1] == netatom[NetWMFullscreen] 523 || cme->data.l[2] == netatom[NetWMFullscreen]) 524 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */ 525 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen))); 526 } else if (cme->message_type == netatom[NetActiveWindow]) { 527 if (c != selmon->sel && !c->isurgent) 528 seturgent(c, 1); 529 } 530 } 531 532 void 533 configure(Client *c) 534 { 535 XConfigureEvent ce; 536 537 ce.type = ConfigureNotify; 538 ce.display = dpy; 539 ce.event = c->win; 540 ce.window = c->win; 541 ce.x = c->x; 542 ce.y = c->y; 543 ce.width = c->w; 544 ce.height = c->h; 545 ce.border_width = c->bw; 546 ce.above = None; 547 ce.override_redirect = False; 548 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); 549 } 550 551 void 552 configurenotify(XEvent *e) 553 { 554 Monitor *m; 555 Client *c; 556 XConfigureEvent *ev = &e->xconfigure; 557 int dirty; 558 559 /* TODO: updategeom handling sucks, needs to be simplified */ 560 if (ev->window == root) { 561 if (ev->width <= 0 || ev->height <= 0) 562 return; 563 564 dirty = (sw != ev->width || sh != ev->height); 565 sw = ev->width; 566 sh = ev->height; 567 if (updategeom() || dirty) { 568 drw_resize(drw, sw, bh); 569 updatebars(); 570 for (m = mons; m; m = m->next) { 571 if (!fakefullscreen) 572 for (c = m->clients; c; c = c->next) 573 if (c->isfullscreen) 574 resizeclient(c, m->mx, m->my, m->mw, m->mh); 575 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); 576 } 577 focus(NULL); 578 arrange(NULL); 579 } 580 } 581 } 582 583 void 584 configurerequest(XEvent *e) 585 { 586 Client *c; 587 Monitor *m; 588 XConfigureRequestEvent *ev = &e->xconfigurerequest; 589 XWindowChanges wc; 590 591 if ((c = wintoclient(ev->window))) { 592 if (ev->value_mask & CWBorderWidth) 593 c->bw = ev->border_width; 594 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) { 595 m = c->mon; 596 if (ev->value_mask & CWX) { 597 c->oldx = c->x; 598 c->x = m->mx + ev->x; 599 } 600 if (ev->value_mask & CWY) { 601 c->oldy = c->y; 602 c->y = m->my + ev->y; 603 } 604 if (ev->value_mask & CWWidth) { 605 c->oldw = c->w; 606 c->w = ev->width; 607 } 608 if (ev->value_mask & CWHeight) { 609 c->oldh = c->h; 610 c->h = ev->height; 611 } 612 if ((c->x + c->w) > m->mx + m->mw && c->isfloating) 613 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */ 614 if ((c->y + c->h) > m->my + m->mh && c->isfloating) 615 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */ 616 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight))) 617 configure(c); 618 if (ISVISIBLE(c)) 619 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 620 } else 621 configure(c); 622 } else { 623 wc.x = ev->x; 624 wc.y = ev->y; 625 wc.width = ev->width; 626 wc.height = ev->height; 627 wc.border_width = ev->border_width; 628 wc.sibling = ev->above; 629 wc.stack_mode = ev->detail; 630 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); 631 } 632 XSync(dpy, False); 633 } 634 635 Monitor * 636 createmon(void) 637 { 638 Monitor *m; 639 640 m = ecalloc(1, sizeof(Monitor)); 641 m->tagset[0] = m->tagset[1] = 1; 642 m->mfact = mfact; 643 m->nmaster = nmaster; 644 m->showbar = showbar; 645 m->topbar = topbar; 646 m->gappih = gappih; 647 m->gappiv = gappiv; 648 m->gappoh = gappoh; 649 m->gappov = gappov; 650 m->lt[0] = &layouts[0]; 651 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 652 strncpy(m->ltsymbol, layouts[0].symbol, sizeof(m->ltsymbol) - 1); 653 m->ltsymbol[sizeof(m->ltsymbol) - 1] = '\0'; 654 return m; 655 } 656 657 void 658 destroynotify(XEvent *e) 659 { 660 Client *c; 661 XDestroyWindowEvent *ev = &e->xdestroywindow; 662 663 if ((c = wintoclient(ev->window))) 664 unmanage(c, 1); 665 } 666 667 void 668 detach(Client *c) 669 { 670 Client **tc; 671 672 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next); 673 *tc = c->next; 674 } 675 676 void 677 detachstack(Client *c) 678 { 679 Client **tc, *t; 680 681 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext); 682 *tc = c->snext; 683 684 if (c == c->mon->sel) { 685 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext); 686 c->mon->sel = t; 687 } 688 } 689 690 Monitor * 691 dirtomon(int dir) 692 { 693 Monitor *m = NULL; 694 695 if (dir > 0) { 696 if (!(m = selmon->next)) 697 m = mons; 698 } else if (selmon == mons) 699 for (m = mons; m->next; m = m->next); 700 else 701 for (m = mons; m->next != selmon; m = m->next); 702 return m; 703 } 704 705 void 706 drawbar(Monitor *m) 707 { 708 int x, w, tw = 0; 709 int boxs = drw->fonts->h / 9; 710 int boxw = drw->fonts->h / 6 + 2; 711 unsigned int i, occ = 0, urg = 0; 712 char *ts = stext; 713 char *tp = stext; 714 int tx = 0; 715 unsigned int ctmp; 716 Client *c; 717 718 if (!m->showbar) 719 return; 720 721 /* draw status first so it can be overdrawn by tags later */ 722 if (m == selmon) { /* status is only drawn on selected monitor */ 723 drw_setscheme(drw, scheme[SchemeNorm]); 724 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 725 for (;;) { 726 while (*ts > LENGTH(colors)) 727 ts++; 728 729 ctmp = *ts; 730 *ts = '\0'; 731 drw_text(drw, m->ww - tw + tx, 0, tw - tx, bh, 0, tp, 0); 732 tx += TEXTW(tp) - lrpad; 733 if (ctmp == '\0') 734 break; 735 drw_setscheme(drw, scheme[ctmp - 1]); 736 *ts = ctmp; 737 tp = ++ts; 738 } 739 } 740 741 for (c = m->clients; c; c = c->next) { 742 occ |= c->tags == 255 ? 0 : c->tags; 743 if (c->isurgent) 744 urg |= c->tags; 745 } 746 x = 0; 747 for (i = 0; i < LENGTH(tags); i++) { 748 /* do not draw vacant tags */ 749 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i)) 750 continue; 751 752 w = TEXTW(tags[i]); 753 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); 754 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 755 x += w; 756 } 757 w = TEXTW(m->ltsymbol); 758 drw_setscheme(drw, scheme[SchemeNorm]); 759 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 760 761 if ((w = m->ww - tw - x) > bh) { 762 if (m->sel) { 763 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); 764 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 765 if (m->sel->isfloating) 766 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 767 } else { 768 drw_setscheme(drw, scheme[SchemeNorm]); 769 drw_rect(drw, x, 0, w, bh, 1, 1); 770 } 771 } 772 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 773 } 774 775 void 776 drawbars(void) 777 { 778 Monitor *m; 779 780 for (m = mons; m; m = m->next) 781 drawbar(m); 782 } 783 784 void 785 enternotify(XEvent *e) 786 { 787 Client *c; 788 Monitor *m; 789 XCrossingEvent *ev = &e->xcrossing; 790 791 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 792 return; 793 c = wintoclient(ev->window); 794 m = c ? c->mon : wintomon(ev->window); 795 if (m != selmon) { 796 unfocus(selmon->sel, 1); 797 selmon = m; 798 } else if (!c || c == selmon->sel) 799 return; 800 focus(c); 801 } 802 803 void 804 expose(XEvent *e) 805 { 806 Monitor *m; 807 XExposeEvent *ev = &e->xexpose; 808 809 if (ev->count == 0 && (m = wintomon(ev->window))) 810 drawbar(m); 811 } 812 813 void 814 focus(Client *c) 815 { 816 if (!c || !ISVISIBLE(c)) 817 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 818 if (selmon->sel && selmon->sel != c) 819 unfocus(selmon->sel, 0); 820 if (c) { 821 if (c->mon != selmon) 822 selmon = c->mon; 823 if (c->isurgent) 824 seturgent(c, 0); 825 detachstack(c); 826 attachstack(c); 827 grabbuttons(c, 1); 828 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 829 setfocus(c); 830 } else { 831 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 832 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 833 } 834 selmon->sel = c; 835 drawbars(); 836 } 837 838 /* there are some broken focus acquiring clients needing extra handling */ 839 void 840 focusin(XEvent *e) 841 { 842 XFocusChangeEvent *ev = &e->xfocus; 843 844 if (selmon->sel && ev->window != selmon->sel->win) 845 setfocus(selmon->sel); 846 } 847 848 void 849 focusmon(const Arg *arg) 850 { 851 Monitor *m; 852 853 if (!mons->next) 854 return; 855 if ((m = dirtomon(arg->i)) == selmon) 856 return; 857 unfocus(selmon->sel, 0); 858 selmon = m; 859 focus(NULL); 860 } 861 862 void 863 focusstack(const Arg *arg) 864 { 865 Client *c = NULL, *i; 866 867 if (!selmon->sel || (selmon->sel->isfullscreen && !fakefullscreen)) 868 return; 869 if (arg->i > 0) { 870 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 871 if (!c) 872 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 873 } else { 874 for (i = selmon->clients; i != selmon->sel; i = i->next) 875 if (ISVISIBLE(i)) 876 c = i; 877 if (!c) 878 for (; i; i = i->next) 879 if (ISVISIBLE(i)) 880 c = i; 881 } 882 if (c) { 883 focus(c); 884 restack(selmon); 885 } 886 } 887 888 Atom 889 getatomprop(Client *c, Atom prop) 890 { 891 int format; 892 unsigned long nitems, dl; 893 unsigned char *p = NULL; 894 Atom da, atom = None; 895 896 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 897 &da, &format, &nitems, &dl, &p) == Success && p) { 898 if (nitems > 0 && format == 32) 899 atom = *(long *)p; 900 XFree(p); 901 } 902 return atom; 903 } 904 905 int 906 getrootptr(int *x, int *y) 907 { 908 int di; 909 unsigned int dui; 910 Window dummy; 911 912 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui); 913 } 914 915 long 916 getstate(Window w) 917 { 918 int format; 919 long result = -1; 920 unsigned char *p = NULL; 921 unsigned long n, extra; 922 Atom real; 923 924 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], 925 &real, &format, &n, &extra, &p) != Success) 926 return -1; 927 if (n != 0 && format == 32) 928 result = *(long *)p; 929 XFree(p); 930 return result; 931 } 932 933 int 934 gettextprop(Window w, Atom atom, char *text, unsigned int size) 935 { 936 char **list = NULL; 937 int n; 938 XTextProperty name; 939 940 if (!text || size == 0) 941 return 0; 942 text[0] = '\0'; 943 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems) 944 return 0; 945 if (name.encoding == XA_STRING) { 946 strncpy(text, (char *)name.value, size - 1); 947 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success) { 948 if (n > 0 && *list) 949 strncpy(text, *list, size - 1); 950 XFreeStringList(list); 951 } 952 text[size - 1] = '\0'; 953 XFree(name.value); 954 return 1; 955 } 956 957 void 958 grabbuttons(Client *c, int focused) 959 { 960 updatenumlockmask(); 961 { 962 unsigned int i, j; 963 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 964 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 965 if (!focused) 966 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, 967 BUTTONMASK, GrabModeSync, GrabModeSync, None, None); 968 for (i = 0; i < LENGTH(buttons); i++) 969 if (buttons[i].click == ClkClientWin) 970 for (j = 0; j < LENGTH(modifiers); j++) 971 XGrabButton(dpy, buttons[i].button, 972 buttons[i].mask | modifiers[j], 973 c->win, False, BUTTONMASK, 974 GrabModeAsync, GrabModeSync, None, None); 975 } 976 } 977 978 void 979 grabkeys(void) 980 { 981 updatenumlockmask(); 982 { 983 unsigned int i, j, k; 984 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 985 int start, end, skip; 986 KeySym *syms; 987 988 XUngrabKey(dpy, AnyKey, AnyModifier, root); 989 XDisplayKeycodes(dpy, &start, &end); 990 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip); 991 if (!syms) 992 return; 993 for (k = start; k <= end; k++) 994 for (i = 0; i < LENGTH(keys); i++) 995 /* skip modifier codes, we do that ourselves */ 996 if (keys[i].keysym == syms[(k - start) * skip]) 997 for (j = 0; j < LENGTH(modifiers); j++) 998 XGrabKey(dpy, k, 999 keys[i].mod | modifiers[j], 1000 root, True, 1001 GrabModeAsync, GrabModeAsync); 1002 XFree(syms); 1003 } 1004 } 1005 1006 void 1007 incnmaster(const Arg *arg) 1008 { 1009 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); 1010 arrange(selmon); 1011 } 1012 1013 #ifdef XINERAMA 1014 static int 1015 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) 1016 { 1017 while (n--) 1018 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org 1019 && unique[n].width == info->width && unique[n].height == info->height) 1020 return 0; 1021 return 1; 1022 } 1023 #endif /* XINERAMA */ 1024 1025 void 1026 keypress(XEvent *e) 1027 { 1028 unsigned int i; 1029 KeySym keysym; 1030 XKeyEvent *ev; 1031 1032 ev = &e->xkey; 1033 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); 1034 for (i = 0; i < LENGTH(keys); i++) 1035 if (keysym == keys[i].keysym 1036 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) 1037 && keys[i].func) 1038 keys[i].func(&(keys[i].arg)); 1039 } 1040 1041 void 1042 killclient(const Arg *arg) 1043 { 1044 if (!selmon->sel) 1045 return; 1046 if (!sendevent(selmon->sel, wmatom[WMDelete])) { 1047 XGrabServer(dpy); 1048 XSetErrorHandler(xerrordummy); 1049 XSetCloseDownMode(dpy, DestroyAll); 1050 XKillClient(dpy, selmon->sel->win); 1051 XSync(dpy, False); 1052 XSetErrorHandler(xerror); 1053 XUngrabServer(dpy); 1054 } 1055 } 1056 1057 void 1058 manage(Window w, XWindowAttributes *wa) 1059 { 1060 Client *c, *t = NULL; 1061 Window trans = None; 1062 XWindowChanges wc; 1063 1064 c = ecalloc(1, sizeof(Client)); 1065 c->win = w; 1066 /* geometry */ 1067 c->x = c->oldx = wa->x; 1068 c->y = c->oldy = wa->y; 1069 c->w = c->oldw = wa->width; 1070 c->h = c->oldh = wa->height; 1071 c->oldbw = wa->border_width; 1072 1073 updatetitle(c); 1074 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { 1075 c->mon = t->mon; 1076 c->tags = t->tags; 1077 } else { 1078 c->mon = selmon; 1079 applyrules(c); 1080 } 1081 1082 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww) 1083 c->x = c->mon->wx + c->mon->ww - WIDTH(c); 1084 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh) 1085 c->y = c->mon->wy + c->mon->wh - HEIGHT(c); 1086 c->x = MAX(c->x, c->mon->wx); 1087 c->y = MAX(c->y, c->mon->wy); 1088 c->bw = borderpx; 1089 1090 wc.border_width = c->bw; 1091 XConfigureWindow(dpy, w, CWBorderWidth, &wc); 1092 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); 1093 configure(c); /* propagates border_width, if size doesn't change */ 1094 updatewindowtype(c); 1095 updatesizehints(c); 1096 updatewmhints(c); 1097 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); 1098 grabbuttons(c, 0); 1099 if (!c->isfloating) 1100 c->isfloating = c->oldstate = trans != None || c->isfixed; 1101 if (c->isfloating) 1102 XRaiseWindow(dpy, c->win); 1103 attach(c); 1104 attachstack(c); 1105 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend, 1106 (unsigned char *) &(c->win), 1); 1107 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */ 1108 setclientstate(c, NormalState); 1109 if (c->mon == selmon) 1110 unfocus(selmon->sel, 0); 1111 c->mon->sel = c; 1112 arrange(c->mon); 1113 XMapWindow(dpy, c->win); 1114 focus(NULL); 1115 } 1116 1117 void 1118 mappingnotify(XEvent *e) 1119 { 1120 XMappingEvent *ev = &e->xmapping; 1121 1122 XRefreshKeyboardMapping(ev); 1123 if (ev->request == MappingKeyboard) 1124 grabkeys(); 1125 } 1126 1127 void 1128 maprequest(XEvent *e) 1129 { 1130 static XWindowAttributes wa; 1131 XMapRequestEvent *ev = &e->xmaprequest; 1132 1133 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect) 1134 return; 1135 if (!wintoclient(ev->window)) 1136 manage(ev->window, &wa); 1137 } 1138 1139 void 1140 monocle(Monitor *m) 1141 { 1142 unsigned int n = 0; 1143 Client *c; 1144 1145 for (c = m->clients; c; c = c->next) 1146 if (ISVISIBLE(c)) 1147 n++; 1148 if (n > 0) /* override layout symbol */ 1149 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n); 1150 for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) 1151 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0); 1152 } 1153 1154 void 1155 motionnotify(XEvent *e) 1156 { 1157 static Monitor *mon = NULL; 1158 Monitor *m; 1159 XMotionEvent *ev = &e->xmotion; 1160 1161 if (ev->window != root) 1162 return; 1163 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) { 1164 unfocus(selmon->sel, 1); 1165 selmon = m; 1166 focus(NULL); 1167 } 1168 mon = m; 1169 } 1170 1171 void 1172 movemouse(const Arg *arg) 1173 { 1174 int x, y, ocx, ocy, nx, ny; 1175 Client *c; 1176 Monitor *m; 1177 XEvent ev; 1178 Time lasttime = 0; 1179 1180 if (!(c = selmon->sel)) 1181 return; 1182 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ 1183 return; 1184 restack(selmon); 1185 ocx = c->x; 1186 ocy = c->y; 1187 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1188 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) 1189 return; 1190 if (!getrootptr(&x, &y)) 1191 return; 1192 do { 1193 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1194 switch(ev.type) { 1195 case ConfigureRequest: 1196 case Expose: 1197 case MapRequest: 1198 handler[ev.type](&ev); 1199 break; 1200 case MotionNotify: 1201 if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate)) 1202 continue; 1203 lasttime = ev.xmotion.time; 1204 1205 nx = ocx + (ev.xmotion.x - x); 1206 ny = ocy + (ev.xmotion.y - y); 1207 if (abs(selmon->wx - nx) < snap) 1208 nx = selmon->wx; 1209 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) 1210 nx = selmon->wx + selmon->ww - WIDTH(c); 1211 if (abs(selmon->wy - ny) < snap) 1212 ny = selmon->wy; 1213 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) 1214 ny = selmon->wy + selmon->wh - HEIGHT(c); 1215 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1216 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) 1217 togglefloating(NULL); 1218 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1219 resize(c, nx, ny, c->w, c->h, 1); 1220 break; 1221 } 1222 } while (ev.type != ButtonRelease); 1223 XUngrabPointer(dpy, CurrentTime); 1224 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1225 sendmon(c, m); 1226 selmon = m; 1227 focus(NULL); 1228 } 1229 } 1230 1231 Client * 1232 nexttiled(Client *c) 1233 { 1234 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next); 1235 return c; 1236 } 1237 1238 void 1239 pop(Client *c) 1240 { 1241 detach(c); 1242 attach(c); 1243 focus(c); 1244 arrange(c->mon); 1245 } 1246 1247 void 1248 propertynotify(XEvent *e) 1249 { 1250 Client *c; 1251 Window trans; 1252 XPropertyEvent *ev = &e->xproperty; 1253 1254 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1255 updatestatus(); 1256 else if (ev->state == PropertyDelete) 1257 return; /* ignore */ 1258 else if ((c = wintoclient(ev->window))) { 1259 switch(ev->atom) { 1260 default: break; 1261 case XA_WM_TRANSIENT_FOR: 1262 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1263 (c->isfloating = (wintoclient(trans)) != NULL)) 1264 arrange(c->mon); 1265 break; 1266 case XA_WM_NORMAL_HINTS: 1267 c->hintsvalid = 0; 1268 break; 1269 case XA_WM_HINTS: 1270 updatewmhints(c); 1271 drawbars(); 1272 break; 1273 } 1274 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1275 updatetitle(c); 1276 if (c == c->mon->sel) 1277 drawbar(c->mon); 1278 } 1279 if (ev->atom == netatom[NetWMWindowType]) 1280 updatewindowtype(c); 1281 } 1282 } 1283 1284 void 1285 quit(const Arg *arg) 1286 { 1287 running = 0; 1288 } 1289 1290 Monitor * 1291 recttomon(int x, int y, int w, int h) 1292 { 1293 Monitor *m, *r = selmon; 1294 int a, area = 0; 1295 1296 for (m = mons; m; m = m->next) 1297 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1298 area = a; 1299 r = m; 1300 } 1301 return r; 1302 } 1303 1304 void 1305 resize(Client *c, int x, int y, int w, int h, int interact) 1306 { 1307 if (applysizehints(c, &x, &y, &w, &h, interact)) 1308 resizeclient(c, x, y, w, h); 1309 } 1310 1311 void 1312 resizeclient(Client *c, int x, int y, int w, int h) 1313 { 1314 XWindowChanges wc; 1315 1316 c->oldx = c->x; c->x = wc.x = x; 1317 c->oldy = c->y; c->y = wc.y = y; 1318 c->oldw = c->w; c->w = wc.width = w; 1319 c->oldh = c->h; c->h = wc.height = h; 1320 wc.border_width = c->bw; 1321 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1322 configure(c); 1323 XSync(dpy, False); 1324 } 1325 1326 void 1327 resizemouse(const Arg *arg) 1328 { 1329 int ocx, ocy, nw, nh; 1330 Client *c; 1331 Monitor *m; 1332 XEvent ev; 1333 Time lasttime = 0; 1334 1335 if (!(c = selmon->sel)) 1336 return; 1337 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1338 return; 1339 restack(selmon); 1340 ocx = c->x; 1341 ocy = c->y; 1342 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1343 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1344 return; 1345 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1346 do { 1347 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1348 switch(ev.type) { 1349 case ConfigureRequest: 1350 case Expose: 1351 case MapRequest: 1352 handler[ev.type](&ev); 1353 break; 1354 case MotionNotify: 1355 if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate)) 1356 continue; 1357 lasttime = ev.xmotion.time; 1358 1359 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1360 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1361 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1362 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1363 { 1364 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1365 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1366 togglefloating(NULL); 1367 } 1368 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1369 resize(c, c->x, c->y, nw, nh, 1); 1370 break; 1371 } 1372 } while (ev.type != ButtonRelease); 1373 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1374 XUngrabPointer(dpy, CurrentTime); 1375 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1376 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1377 sendmon(c, m); 1378 selmon = m; 1379 focus(NULL); 1380 } 1381 } 1382 1383 void 1384 restack(Monitor *m) 1385 { 1386 Client *c; 1387 XEvent ev; 1388 XWindowChanges wc; 1389 1390 drawbar(m); 1391 if (!m->sel) 1392 return; 1393 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1394 XRaiseWindow(dpy, m->sel->win); 1395 if (m->lt[m->sellt]->arrange) { 1396 wc.stack_mode = Below; 1397 wc.sibling = m->barwin; 1398 for (c = m->stack; c; c = c->snext) 1399 if (!c->isfloating && ISVISIBLE(c)) { 1400 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1401 wc.sibling = c->win; 1402 } 1403 } 1404 XSync(dpy, False); 1405 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1406 } 1407 1408 void 1409 run(void) 1410 { 1411 XEvent ev; 1412 /* main event loop */ 1413 XSync(dpy, False); 1414 while (running && !XNextEvent(dpy, &ev)) 1415 if (handler[ev.type]) 1416 handler[ev.type](&ev); /* call handler */ 1417 } 1418 1419 void 1420 scan(void) 1421 { 1422 unsigned int i, num; 1423 Window d1, d2, *wins = NULL; 1424 XWindowAttributes wa; 1425 1426 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1427 for (i = 0; i < num; i++) { 1428 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1429 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1430 continue; 1431 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1432 manage(wins[i], &wa); 1433 } 1434 for (i = 0; i < num; i++) { /* now the transients */ 1435 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1436 continue; 1437 if (XGetTransientForHint(dpy, wins[i], &d1) 1438 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1439 manage(wins[i], &wa); 1440 } 1441 if (wins) 1442 XFree(wins); 1443 } 1444 } 1445 1446 void 1447 sendmon(Client *c, Monitor *m) 1448 { 1449 if (c->mon == m) 1450 return; 1451 unfocus(c, 1); 1452 detach(c); 1453 detachstack(c); 1454 c->mon = m; 1455 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1456 attach(c); 1457 attachstack(c); 1458 if (c->isfullscreen) 1459 resizeclient(c, m->mx, m->my, m->mw, m->mh); 1460 focus(NULL); 1461 arrange(NULL); 1462 } 1463 1464 void 1465 setclientstate(Client *c, long state) 1466 { 1467 long data[] = { state, None }; 1468 1469 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1470 PropModeReplace, (unsigned char *)data, 2); 1471 } 1472 1473 int 1474 sendevent(Client *c, Atom proto) 1475 { 1476 int n; 1477 Atom *protocols; 1478 int exists = 0; 1479 XEvent ev; 1480 1481 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1482 while (!exists && n--) 1483 exists = protocols[n] == proto; 1484 XFree(protocols); 1485 } 1486 if (exists) { 1487 ev.type = ClientMessage; 1488 ev.xclient.window = c->win; 1489 ev.xclient.message_type = wmatom[WMProtocols]; 1490 ev.xclient.format = 32; 1491 ev.xclient.data.l[0] = proto; 1492 ev.xclient.data.l[1] = CurrentTime; 1493 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1494 } 1495 return exists; 1496 } 1497 1498 void 1499 setfocus(Client *c) 1500 { 1501 if (!c->neverfocus) 1502 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1503 XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW, 32, 1504 PropModeReplace, (unsigned char *)&c->win, 1); 1505 sendevent(c, wmatom[WMTakeFocus]); 1506 } 1507 1508 void 1509 setfullscreen(Client *c, int fullscreen) 1510 { 1511 if (fullscreen && !c->isfullscreen) { 1512 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1513 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1514 c->isfullscreen = 1; 1515 1516 if (fakefullscreen) 1517 return; 1518 1519 c->oldstate = c->isfloating; 1520 c->oldbw = c->bw; 1521 c->bw = 0; 1522 c->isfloating = 1; 1523 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1524 XRaiseWindow(dpy, c->win); 1525 } else if (!fullscreen && c->isfullscreen){ 1526 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1527 PropModeReplace, (unsigned char*)0, 0); 1528 c->isfullscreen = 0; 1529 c->isfloating = c->oldstate; 1530 c->bw = c->oldbw; 1531 c->x = c->oldx; 1532 c->y = c->oldy; 1533 c->w = c->oldw; 1534 c->h = c->oldh; 1535 resizeclient(c, c->x, c->y, c->w, c->h); 1536 arrange(c->mon); 1537 } 1538 } 1539 1540 void 1541 setlayout(const Arg *arg) 1542 { 1543 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1544 selmon->sellt ^= 1; 1545 if (arg && arg->v) 1546 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1547 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof(selmon->ltsymbol) - 1); 1548 if (selmon->sel) 1549 arrange(selmon); 1550 else 1551 drawbar(selmon); 1552 } 1553 1554 void 1555 nextlayout(const Arg *arg) 1556 { 1557 const Layout *l; 1558 Arg a; 1559 1560 for (l = layouts; l != selmon->lt[selmon->sellt]; l++); 1561 1562 if (l->symbol && (l + 1)->symbol) 1563 a.v = (l + 1); 1564 else 1565 a.v = layouts; 1566 1567 setlayout(&a); 1568 } 1569 1570 void 1571 prevlayout(const Arg *arg) 1572 { 1573 const Layout *l; 1574 Arg a; 1575 1576 for (l = layouts; l != selmon->lt[selmon->sellt]; l++); 1577 1578 if (l != layouts && (l - 1)->symbol) 1579 a.v = (l - 1); 1580 else 1581 a.v = &layouts[LENGTH(layouts) - 2]; 1582 1583 setlayout(&a); 1584 } 1585 1586 /* arg > 1.0 will set mfact absolutely */ 1587 void 1588 setmfact(const Arg *arg) 1589 { 1590 float f; 1591 1592 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1593 return; 1594 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1595 if (f < 0.05 || f > 0.95) 1596 return; 1597 selmon->mfact = f; 1598 arrange(selmon); 1599 } 1600 1601 void 1602 setup(void) 1603 { 1604 int i; 1605 XSetWindowAttributes wa; 1606 Atom utf8string; 1607 struct sigaction sa; 1608 1609 /* do not transform children into zombies when they terminate */ 1610 sigemptyset(&sa.sa_mask); 1611 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART; 1612 sa.sa_handler = SIG_IGN; 1613 sigaction(SIGCHLD, &sa, NULL); 1614 1615 /* clean up any zombies (inherited from .xinitrc etc) immediately */ 1616 while (waitpid(-1, NULL, WNOHANG) > 0); 1617 1618 /* init screen */ 1619 screen = DefaultScreen(dpy); 1620 sw = DisplayWidth(dpy, screen); 1621 sh = DisplayHeight(dpy, screen); 1622 root = RootWindow(dpy, screen); 1623 drw = drw_create(dpy, screen, root, sw, sh); 1624 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1625 die("no fonts could be loaded."); 1626 lrpad = drw->fonts->h; 1627 bh = drw->fonts->h + padbar; 1628 updategeom(); 1629 /* init atoms */ 1630 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1631 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1632 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1633 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1634 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1635 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1636 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1637 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1638 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1639 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1640 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1641 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1642 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1643 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1644 /* init cursors */ 1645 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1646 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1647 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1648 /* init appearance */ 1649 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1650 for (i = 0; i < LENGTH(colors); i++) 1651 scheme[i] = drw_scm_create(drw, colors[i], 3); 1652 /* init bars */ 1653 updatebars(); 1654 updatestatus(); 1655 /* supporting window for NetWMCheck */ 1656 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1657 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1658 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1659 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1660 PropModeReplace, (unsigned char *) "dwm", 3); 1661 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1662 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1663 /* EWMH support per view */ 1664 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1665 PropModeReplace, (unsigned char *) netatom, NetLast); 1666 XDeleteProperty(dpy, root, netatom[NetClientList]); 1667 /* select events */ 1668 wa.cursor = cursor[CurNormal]->cursor; 1669 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1670 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1671 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1672 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1673 XSelectInput(dpy, root, wa.event_mask); 1674 grabkeys(); 1675 focus(NULL); 1676 } 1677 1678 void 1679 seturgent(Client *c, int urg) 1680 { 1681 XWMHints *wmh; 1682 1683 c->isurgent = urg; 1684 if (!(wmh = XGetWMHints(dpy, c->win))) 1685 return; 1686 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1687 XSetWMHints(dpy, c->win, wmh); 1688 XFree(wmh); 1689 } 1690 1691 void 1692 showhide(Client *c) 1693 { 1694 if (!c) 1695 return; 1696 if (ISVISIBLE(c)) { 1697 if ((c->tags & SPTAGMASK) && c->isfloating) { 1698 c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2); 1699 c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2); 1700 } 1701 /* show clients top down */ 1702 XMoveWindow(dpy, c->win, c->x, c->y); 1703 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && fakefullscreen && !c->isfullscreen) 1704 resize(c, c->x, c->y, c->w, c->h, 0); 1705 showhide(c->snext); 1706 } else { 1707 /* hide clients bottom up */ 1708 showhide(c->snext); 1709 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1710 } 1711 } 1712 1713 void 1714 spawn(const Arg *arg) 1715 { 1716 struct sigaction sa; 1717 pid_t pid; 1718 1719 if (arg->v == dmenucmd) 1720 snprintf(dmenumon, sizeof(dmenumon), "%d", selmon->num); 1721 1722 if ((pid = fork()) == -1) { 1723 fprintf(stderr, "dwm: fork failed: %s\n", strerror(errno)); 1724 return; 1725 } 1726 if (pid == 0) { 1727 if (dpy) 1728 close(ConnectionNumber(dpy)); 1729 setsid(); 1730 1731 sigemptyset(&sa.sa_mask); 1732 sa.sa_flags = 0; 1733 sa.sa_handler = SIG_DFL; 1734 sigaction(SIGCHLD, &sa, NULL); 1735 1736 execvp(((char **)arg->v)[0], (char **)arg->v); 1737 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]); 1738 } 1739 } 1740 1741 void 1742 tag(const Arg *arg) 1743 { 1744 if (selmon->sel && arg->ui & TAGMASK) { 1745 selmon->sel->tags = arg->ui & TAGMASK; 1746 focus(NULL); 1747 arrange(selmon); 1748 } 1749 } 1750 1751 void 1752 tagmon(const Arg *arg) 1753 { 1754 if (!selmon->sel || !mons->next) 1755 return; 1756 sendmon(selmon->sel, dirtomon(arg->i)); 1757 } 1758 1759 void 1760 togglebar(const Arg *arg) 1761 { 1762 selmon->showbar = !selmon->showbar; 1763 updatebarpos(selmon); 1764 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1765 arrange(selmon); 1766 } 1767 1768 void 1769 togglefakefull(const Arg *arg) 1770 { 1771 fakefullscreen = !fakefullscreen; 1772 if (selmon->sel && selmon->sel->isfullscreen) 1773 setfullscreen(selmon->sel, 0); 1774 } 1775 1776 void 1777 togglefloating(const Arg *arg) 1778 { 1779 if (!selmon->sel) 1780 return; 1781 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */ 1782 return; 1783 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed; 1784 if (selmon->sel->isfloating) 1785 resize(selmon->sel, selmon->sel->x, selmon->sel->y, 1786 selmon->sel->w, selmon->sel->h, 0); 1787 arrange(selmon); 1788 } 1789 1790 void 1791 togglefullscr(const Arg *arg) 1792 { 1793 if (!fakefullscreen && selmon->sel) 1794 setfullscreen(selmon->sel, !selmon->sel->isfullscreen); 1795 } 1796 1797 void 1798 togglescratch(const Arg *arg) 1799 { 1800 Client *c; 1801 unsigned int found = 0; 1802 unsigned int scratchtag = SPTAG(arg->ui); 1803 Arg sparg = {.v = scratchpads[arg->ui].cmd}; 1804 1805 for (c = selmon->clients; c && !(found = c->tags & scratchtag); c = c->next); 1806 if (found) { 1807 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ scratchtag; 1808 if (newtagset) { 1809 selmon->tagset[selmon->seltags] = newtagset; 1810 focus(NULL); 1811 arrange(selmon); 1812 } 1813 if (ISVISIBLE(c)) { 1814 focus(c); 1815 restack(selmon); 1816 } 1817 } else { 1818 selmon->tagset[selmon->seltags] |= scratchtag; 1819 spawn(&sparg); 1820 } 1821 } 1822 1823 void 1824 toggletag(const Arg *arg) 1825 { 1826 unsigned int newtags; 1827 1828 if (!selmon->sel) 1829 return; 1830 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1831 if (newtags) { 1832 selmon->sel->tags = newtags; 1833 focus(NULL); 1834 arrange(selmon); 1835 } 1836 } 1837 1838 void 1839 toggleview(const Arg *arg) 1840 { 1841 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1842 1843 if (newtagset) { 1844 selmon->tagset[selmon->seltags] = newtagset; 1845 focus(NULL); 1846 arrange(selmon); 1847 } 1848 } 1849 1850 void 1851 unfocus(Client *c, int setfocus) 1852 { 1853 if (!c) 1854 return; 1855 grabbuttons(c, 0); 1856 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1857 if (setfocus) { 1858 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1859 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1860 } 1861 } 1862 1863 void 1864 unmanage(Client *c, int destroyed) 1865 { 1866 Monitor *m = c->mon; 1867 XWindowChanges wc; 1868 1869 detach(c); 1870 detachstack(c); 1871 if (!destroyed) { 1872 wc.border_width = c->oldbw; 1873 XGrabServer(dpy); /* avoid race conditions */ 1874 XSetErrorHandler(xerrordummy); 1875 XSelectInput(dpy, c->win, NoEventMask); 1876 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1877 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1878 setclientstate(c, WithdrawnState); 1879 XSync(dpy, False); 1880 XSetErrorHandler(xerror); 1881 XUngrabServer(dpy); 1882 } 1883 free(c); 1884 focus(NULL); 1885 updateclientlist(); 1886 arrange(m); 1887 } 1888 1889 void 1890 unmapnotify(XEvent *e) 1891 { 1892 Client *c; 1893 XUnmapEvent *ev = &e->xunmap; 1894 1895 if ((c = wintoclient(ev->window))) { 1896 if (ev->send_event) 1897 setclientstate(c, WithdrawnState); 1898 else 1899 unmanage(c, 0); 1900 } 1901 } 1902 1903 void 1904 updatebars(void) 1905 { 1906 Monitor *m; 1907 XSetWindowAttributes wa = { 1908 .override_redirect = True, 1909 .background_pixmap = ParentRelative, 1910 .event_mask = ButtonPressMask|ExposureMask 1911 }; 1912 XClassHint ch = {"dwm", "dwm"}; 1913 for (m = mons; m; m = m->next) { 1914 if (m->barwin) 1915 continue; 1916 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1917 CopyFromParent, DefaultVisual(dpy, screen), 1918 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1919 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1920 XMapRaised(dpy, m->barwin); 1921 XSetClassHint(dpy, m->barwin, &ch); 1922 } 1923 } 1924 1925 void 1926 updatebarpos(Monitor *m) 1927 { 1928 m->wy = m->my; 1929 m->wh = m->mh; 1930 if (m->showbar) { 1931 m->wh -= bh; 1932 m->by = m->topbar ? m->wy : m->wy + m->wh; 1933 m->wy = m->topbar ? m->wy + bh : m->wy; 1934 } else 1935 m->by = -bh; 1936 } 1937 1938 void 1939 updateclientlist(void) 1940 { 1941 Client *c; 1942 Monitor *m; 1943 1944 XDeleteProperty(dpy, root, netatom[NetClientList]); 1945 for (m = mons; m; m = m->next) 1946 for (c = m->clients; c; c = c->next) 1947 XChangeProperty(dpy, root, netatom[NetClientList], 1948 XA_WINDOW, 32, PropModeAppend, 1949 (unsigned char *) &(c->win), 1); 1950 } 1951 1952 int 1953 updategeom(void) 1954 { 1955 int dirty = 0; 1956 1957 #ifdef XINERAMA 1958 if (XineramaIsActive(dpy)) { 1959 int i, j, n, nn; 1960 Client *c; 1961 Monitor *m; 1962 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1963 XineramaScreenInfo *unique = NULL; 1964 1965 for (n = 0, m = mons; m; m = m->next, n++); 1966 /* only consider unique geometries as separate screens */ 1967 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1968 for (i = 0, j = 0; i < nn; i++) 1969 if (isuniquegeom(unique, j, &info[i])) 1970 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1971 XFree(info); 1972 nn = j; 1973 1974 /* new monitors if nn > n */ 1975 for (i = n; i < nn; i++) { 1976 for (m = mons; m && m->next; m = m->next); 1977 if (m) 1978 m->next = createmon(); 1979 else 1980 mons = createmon(); 1981 } 1982 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 1983 if (i >= n 1984 || unique[i].x_org != m->mx || unique[i].y_org != m->my 1985 || unique[i].width != m->mw || unique[i].height != m->mh) 1986 { 1987 dirty = 1; 1988 m->num = i; 1989 m->mx = m->wx = unique[i].x_org; 1990 m->my = m->wy = unique[i].y_org; 1991 m->mw = m->ww = unique[i].width; 1992 m->mh = m->wh = unique[i].height; 1993 updatebarpos(m); 1994 } 1995 /* removed monitors if n > nn */ 1996 for (i = nn; i < n; i++) { 1997 for (m = mons; m && m->next; m = m->next); 1998 while ((c = m->clients)) { 1999 dirty = 1; 2000 m->clients = c->next; 2001 detachstack(c); 2002 c->mon = mons; 2003 attach(c); 2004 attachstack(c); 2005 } 2006 if (m == selmon) 2007 selmon = mons; 2008 cleanupmon(m); 2009 } 2010 free(unique); 2011 } else 2012 #endif /* XINERAMA */ 2013 { /* default monitor setup */ 2014 if (!mons) 2015 mons = createmon(); 2016 if (mons->mw != sw || mons->mh != sh) { 2017 dirty = 1; 2018 mons->mw = mons->ww = sw; 2019 mons->mh = mons->wh = sh; 2020 updatebarpos(mons); 2021 } 2022 } 2023 if (dirty) { 2024 selmon = mons; 2025 selmon = wintomon(root); 2026 } 2027 return dirty; 2028 } 2029 2030 void 2031 updatenumlockmask(void) 2032 { 2033 unsigned int i, j; 2034 XModifierKeymap *modmap; 2035 2036 numlockmask = 0; 2037 if (!(modmap = XGetModifierMapping(dpy))) 2038 return; 2039 for (i = 0; i < 8; i++) 2040 for (j = 0; j < modmap->max_keypermod; j++) 2041 if (modmap->modifiermap[i * modmap->max_keypermod + j] 2042 == XKeysymToKeycode(dpy, XK_Num_Lock)) 2043 numlockmask = (1 << i); 2044 XFreeModifiermap(modmap); 2045 } 2046 2047 void 2048 updatesizehints(Client *c) 2049 { 2050 long msize; 2051 XSizeHints size; 2052 2053 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 2054 /* size is uninitialized, ensure that size.flags aren't used */ 2055 size.flags = PSize; 2056 if (size.flags & PBaseSize) { 2057 c->basew = MAX(0, size.base_width); 2058 c->baseh = MAX(0, size.base_height); 2059 } else if (size.flags & PMinSize) { 2060 c->basew = MAX(0, size.min_width); 2061 c->baseh = MAX(0, size.min_height); 2062 } else 2063 c->basew = c->baseh = 0; 2064 if (size.flags & PResizeInc) { 2065 c->incw = MAX(0, size.width_inc); 2066 c->inch = MAX(0, size.height_inc); 2067 } else 2068 c->incw = c->inch = 0; 2069 if (size.flags & PMaxSize) { 2070 c->maxw = MAX(0, size.max_width); 2071 c->maxh = MAX(0, size.max_height); 2072 } else 2073 c->maxw = c->maxh = 0; 2074 if (size.flags & PMinSize) { 2075 c->minw = MAX(0, size.min_width); 2076 c->minh = MAX(0, size.min_height); 2077 } else if (size.flags & PBaseSize) { 2078 c->minw = MAX(0, size.base_width); 2079 c->minh = MAX(0, size.base_height); 2080 } else 2081 c->minw = c->minh = 0; 2082 if ((size.flags & PAspect) && size.min_aspect.x > 0 && size.max_aspect.y > 0) { 2083 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 2084 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 2085 } else 2086 c->maxa = c->mina = 0.0; 2087 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 2088 c->hintsvalid = 1; 2089 } 2090 2091 void 2092 updatestatus(void) 2093 { 2094 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 2095 strcpy(stext, "dwm-"VERSION); 2096 drawbar(selmon); 2097 } 2098 2099 void 2100 updatetitle(Client *c) 2101 { 2102 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 2103 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 2104 if (c->name[0] == '\0') /* hack to mark broken clients */ 2105 strcpy(c->name, broken); 2106 } 2107 2108 void 2109 updatewindowtype(Client *c) 2110 { 2111 Atom state = getatomprop(c, netatom[NetWMState]); 2112 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2113 2114 if (state == netatom[NetWMFullscreen]) 2115 setfullscreen(c, 1); 2116 if (wtype == netatom[NetWMWindowTypeDialog]) 2117 c->isfloating = 1; 2118 } 2119 2120 void 2121 updatewmhints(Client *c) 2122 { 2123 XWMHints *wmh; 2124 2125 if ((wmh = XGetWMHints(dpy, c->win))) { 2126 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2127 wmh->flags &= ~XUrgencyHint; 2128 XSetWMHints(dpy, c->win, wmh); 2129 } else 2130 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2131 if (wmh->flags & InputHint) 2132 c->neverfocus = !wmh->input; 2133 else 2134 c->neverfocus = 0; 2135 XFree(wmh); 2136 } 2137 } 2138 2139 void 2140 view(const Arg *arg) 2141 { 2142 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2143 return; 2144 selmon->seltags ^= 1; /* toggle sel tagset */ 2145 if (arg->ui & TAGMASK) 2146 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2147 focus(NULL); 2148 arrange(selmon); 2149 } 2150 2151 Client * 2152 wintoclient(Window w) 2153 { 2154 Client *c; 2155 Monitor *m; 2156 2157 for (m = mons; m; m = m->next) 2158 for (c = m->clients; c; c = c->next) 2159 if (c->win == w) 2160 return c; 2161 return NULL; 2162 } 2163 2164 Monitor * 2165 wintomon(Window w) 2166 { 2167 int x, y; 2168 Client *c; 2169 Monitor *m; 2170 2171 if (w == root && getrootptr(&x, &y)) 2172 return recttomon(x, y, 1, 1); 2173 for (m = mons; m; m = m->next) 2174 if (w == m->barwin) 2175 return m; 2176 if ((c = wintoclient(w))) 2177 return c->mon; 2178 return selmon; 2179 } 2180 2181 /* There's no way to check accesses to destroyed windows, thus those cases are 2182 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2183 * default error handler, which may call exit. */ 2184 int 2185 xerror(Display *dpy, XErrorEvent *ee) 2186 { 2187 if (ee->error_code == BadWindow 2188 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2189 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2190 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2191 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2192 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2193 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2194 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2195 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2196 return 0; 2197 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2198 ee->request_code, ee->error_code); 2199 return xerrorxlib(dpy, ee); /* may call exit */ 2200 } 2201 2202 int 2203 xerrordummy(Display *dpy, XErrorEvent *ee) 2204 { 2205 return 0; 2206 } 2207 2208 /* Startup Error handler to check if another window manager 2209 * is already running. */ 2210 int 2211 xerrorstart(Display *dpy, XErrorEvent *ee) 2212 { 2213 die("dwm: another window manager is already running"); 2214 return -1; 2215 } 2216 2217 void 2218 zoom(const Arg *arg) 2219 { 2220 Client *c = selmon->sel; 2221 2222 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating) 2223 return; 2224 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next))) 2225 return; 2226 pop(c); 2227 } 2228 2229 int 2230 main(int argc, char *argv[]) 2231 { 2232 if (argc == 2 && !strcmp("-v", argv[1])) 2233 die("dwm-"VERSION); 2234 else if (argc != 1) 2235 die("usage: dwm [-v]"); 2236 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2237 fputs("warning: no locale support\n", stderr); 2238 if (!(dpy = XOpenDisplay(NULL))) 2239 die("dwm: cannot open display"); 2240 checkotherwm(); 2241 setup(); 2242 #ifdef __OpenBSD__ 2243 if (pledge("stdio rpath proc exec", NULL) == -1) 2244 die("pledge"); 2245 #endif /* __OpenBSD__ */ 2246 scan(); 2247 run(); 2248 cleanup(); 2249 XCloseDisplay(dpy); 2250 return EXIT_SUCCESS; 2251 }