dwm.c (52957B)
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 #include <errno.h> 24 #include <locale.h> 25 #include <signal.h> 26 #include <stdarg.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 #include <sys/types.h> 32 #include <sys/wait.h> 33 #include <X11/cursorfont.h> 34 #include <X11/keysym.h> 35 #include <X11/Xatom.h> 36 #include <X11/Xlib.h> 37 #include <X11/Xproto.h> 38 #include <X11/Xutil.h> 39 #ifdef XINERAMA 40 #include <X11/extensions/Xinerama.h> 41 #endif /* XINERAMA */ 42 #include <X11/Xft/Xft.h> 43 44 #include "drw.h" 45 #include "util.h" 46 47 /* macros */ 48 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask) 49 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask)) 50 #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \ 51 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy))) 52 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags])) 53 #define LENGTH(X) (sizeof X / sizeof X[0]) 54 #define MOUSEMASK (BUTTONMASK|PointerMotionMask) 55 #define WIDTH(X) ((X)->w + 2 * (X)->bw) 56 #define HEIGHT(X) ((X)->h + 2 * (X)->bw) 57 #define TAGMASK ((1 << LENGTH(tags)) - 1) 58 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 59 60 /* enums */ 61 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ 62 enum { SchemeNorm, SchemeSel }; /* color schemes */ 63 enum { NetSupported, NetWMName, NetWMState, NetWMCheck, 64 NetWMFullscreen, NetActiveWindow, NetWMWindowType, 65 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ 66 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */ 67 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, 68 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */ 69 70 typedef union { 71 int i; 72 unsigned int ui; 73 float f; 74 const void *v; 75 } Arg; 76 77 typedef struct { 78 unsigned int click; 79 unsigned int mask; 80 unsigned int button; 81 void (*func)(const Arg *arg); 82 const Arg arg; 83 } Button; 84 85 typedef struct Monitor Monitor; 86 typedef struct Client Client; 87 struct Client { 88 char name[256]; 89 float mina, maxa; 90 int x, y, w, h; 91 int oldx, oldy, oldw, oldh; 92 int basew, baseh, incw, inch, maxw, maxh, minw, minh; 93 int bw, oldbw; 94 unsigned int tags; 95 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen; 96 Client *next; 97 Client *snext; 98 Monitor *mon; 99 Window win; 100 }; 101 102 typedef struct { 103 unsigned int mod; 104 KeySym keysym; 105 void (*func)(const Arg *); 106 const Arg arg; 107 } Key; 108 109 typedef struct { 110 const char *symbol; 111 void (*arrange)(Monitor *); 112 } Layout; 113 114 struct Monitor { 115 char ltsymbol[16]; 116 float mfact; 117 int nmaster; 118 int num; 119 int by; /* bar geometry */ 120 int mx, my, mw, mh; /* screen size */ 121 int wx, wy, ww, wh; /* window area */ 122 unsigned int seltags; 123 unsigned int sellt; 124 unsigned int tagset[2]; 125 int showbar; 126 int topbar; 127 Client *clients; 128 Client *sel; 129 Client *stack; 130 Monitor *next; 131 Window barwin; 132 const Layout *lt[2]; 133 }; 134 135 typedef struct { 136 const char *class; 137 const char *instance; 138 const char *title; 139 unsigned int tags; 140 int isfloating; 141 int monitor; 142 } Rule; 143 144 /* function declarations */ 145 static void applyrules(Client *c); 146 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact); 147 static void arrange(Monitor *m); 148 static void arrangemon(Monitor *m); 149 static void attach(Client *c); 150 static void attachstack(Client *c); 151 static void buttonpress(XEvent *e); 152 static void checkotherwm(void); 153 static void cleanup(void); 154 static void cleanupmon(Monitor *mon); 155 static void clientmessage(XEvent *e); 156 static void configure(Client *c); 157 static void configurenotify(XEvent *e); 158 static void configurerequest(XEvent *e); 159 static Monitor *createmon(void); 160 static void destroynotify(XEvent *e); 161 static void detach(Client *c); 162 static void detachstack(Client *c); 163 static Monitor *dirtomon(int dir); 164 static void drawbar(Monitor *m); 165 static void drawbars(void); 166 static void enternotify(XEvent *e); 167 static void expose(XEvent *e); 168 static void focus(Client *c); 169 static void focusin(XEvent *e); 170 static void focusmon(const Arg *arg); 171 static void focusstack(const Arg *arg); 172 static Atom getatomprop(Client *c, Atom prop); 173 static int getrootptr(int *x, int *y); 174 static long getstate(Window w); 175 static int gettextprop(Window w, Atom atom, char *text, unsigned int size); 176 static void grabbuttons(Client *c, int focused); 177 static void grabkeys(void); 178 static void incnmaster(const Arg *arg); 179 static void keypress(XEvent *e); 180 static void killclient(const Arg *arg); 181 static void manage(Window w, XWindowAttributes *wa); 182 static void mappingnotify(XEvent *e); 183 static void maprequest(XEvent *e); 184 static void monocle(Monitor *m); 185 static void motionnotify(XEvent *e); 186 static void movemouse(const Arg *arg); 187 static Client *nexttiled(Client *c); 188 static void pop(Client *); 189 static void propertynotify(XEvent *e); 190 static void quit(const Arg *arg); 191 static Monitor *recttomon(int x, int y, int w, int h); 192 static void resize(Client *c, int x, int y, int w, int h, int interact); 193 static void resizeclient(Client *c, int x, int y, int w, int h); 194 static void resizemouse(const Arg *arg); 195 static void restack(Monitor *m); 196 static void run(void); 197 static void scan(void); 198 static int sendevent(Client *c, Atom proto); 199 static void sendmon(Client *c, Monitor *m); 200 static void setclientstate(Client *c, long state); 201 static void setfocus(Client *c); 202 static void setfullscreen(Client *c, int fullscreen); 203 static void setlayout(const Arg *arg); 204 static void setmfact(const Arg *arg); 205 static void setup(void); 206 static void seturgent(Client *c, int urg); 207 static void showhide(Client *c); 208 static void sigchld(int unused); 209 static void spawn(const Arg *arg); 210 static void tag(const Arg *arg); 211 static void tagmon(const Arg *arg); 212 static void tile(Monitor *); 213 static void togglebar(const Arg *arg); 214 static void togglefloating(const Arg *arg); 215 static void toggletag(const Arg *arg); 216 static void toggleview(const Arg *arg); 217 static void unfocus(Client *c, int setfocus); 218 static void unmanage(Client *c, int destroyed); 219 static void unmapnotify(XEvent *e); 220 static void updatebarpos(Monitor *m); 221 static void updatebars(void); 222 static void updateclientlist(void); 223 static int updategeom(void); 224 static void updatenumlockmask(void); 225 static void updatesizehints(Client *c); 226 static void updatestatus(void); 227 static void updatetitle(Client *c); 228 static void updatewindowtype(Client *c); 229 static void updatewmhints(Client *c); 230 static void view(const Arg *arg); 231 static Client *wintoclient(Window w); 232 static Monitor *wintomon(Window w); 233 static int xerror(Display *dpy, XErrorEvent *ee); 234 static int xerrordummy(Display *dpy, XErrorEvent *ee); 235 static int xerrorstart(Display *dpy, XErrorEvent *ee); 236 static void zoom(const Arg *arg); 237 238 /* variables */ 239 static const char broken[] = "broken"; 240 static char stext[256]; 241 static int screen; 242 static int sw, sh; /* X display screen geometry width, height */ 243 static int bh, blw = 0; /* bar geometry */ 244 static int lrpad; /* sum of left and right padding for text */ 245 static int (*xerrorxlib)(Display *, XErrorEvent *); 246 static unsigned int numlockmask = 0; 247 static void (*handler[LASTEvent]) (XEvent *) = { 248 [ButtonPress] = buttonpress, 249 [ClientMessage] = clientmessage, 250 [ConfigureRequest] = configurerequest, 251 [ConfigureNotify] = configurenotify, 252 [DestroyNotify] = destroynotify, 253 [EnterNotify] = enternotify, 254 [Expose] = expose, 255 [FocusIn] = focusin, 256 [KeyPress] = keypress, 257 [MappingNotify] = mappingnotify, 258 [MapRequest] = maprequest, 259 [MotionNotify] = motionnotify, 260 [PropertyNotify] = propertynotify, 261 [UnmapNotify] = unmapnotify 262 }; 263 static Atom wmatom[WMLast], netatom[NetLast]; 264 static int running = 1; 265 static Cur *cursor[CurLast]; 266 static Clr **scheme; 267 static Display *dpy; 268 static Drw *drw; 269 static Monitor *mons, *selmon; 270 static Window root, wmcheckwin; 271 272 /* configuration, allows nested code to access above variables */ 273 #include "config.h" 274 275 /* compile-time check if all tags fit into an unsigned int bit array. */ 276 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; 277 278 /* function implementations */ 279 void 280 applyrules(Client *c) 281 { 282 const char *class, *instance; 283 unsigned int i; 284 const Rule *r; 285 Monitor *m; 286 XClassHint ch = { NULL, NULL }; 287 288 /* rule matching */ 289 c->isfloating = 0; 290 c->tags = 0; 291 XGetClassHint(dpy, c->win, &ch); 292 class = ch.res_class ? ch.res_class : broken; 293 instance = ch.res_name ? ch.res_name : broken; 294 295 for (i = 0; i < LENGTH(rules); i++) { 296 r = &rules[i]; 297 if ((!r->title || strstr(c->name, r->title)) 298 && (!r->class || strstr(class, r->class)) 299 && (!r->instance || strstr(instance, r->instance))) 300 { 301 c->isfloating = r->isfloating; 302 c->tags |= r->tags; 303 for (m = mons; m && m->num != r->monitor; m = m->next); 304 if (m) 305 c->mon = m; 306 } 307 } 308 if (ch.res_class) 309 XFree(ch.res_class); 310 if (ch.res_name) 311 XFree(ch.res_name); 312 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags]; 313 } 314 315 int 316 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) 317 { 318 int baseismin; 319 Monitor *m = c->mon; 320 321 /* set minimum possible */ 322 *w = MAX(1, *w); 323 *h = MAX(1, *h); 324 if (interact) { 325 if (*x > sw) 326 *x = sw - WIDTH(c); 327 if (*y > sh) 328 *y = sh - HEIGHT(c); 329 if (*x + *w + 2 * c->bw < 0) 330 *x = 0; 331 if (*y + *h + 2 * c->bw < 0) 332 *y = 0; 333 } else { 334 if (*x >= m->wx + m->ww) 335 *x = m->wx + m->ww - WIDTH(c); 336 if (*y >= m->wy + m->wh) 337 *y = m->wy + m->wh - HEIGHT(c); 338 if (*x + *w + 2 * c->bw <= m->wx) 339 *x = m->wx; 340 if (*y + *h + 2 * c->bw <= m->wy) 341 *y = m->wy; 342 } 343 if (*h < bh) 344 *h = bh; 345 if (*w < bh) 346 *w = bh; 347 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { 348 /* see last two sentences in ICCCM 4.1.2.3 */ 349 baseismin = c->basew == c->minw && c->baseh == c->minh; 350 if (!baseismin) { /* temporarily remove base dimensions */ 351 *w -= c->basew; 352 *h -= c->baseh; 353 } 354 /* adjust for aspect limits */ 355 if (c->mina > 0 && c->maxa > 0) { 356 if (c->maxa < (float)*w / *h) 357 *w = *h * c->maxa + 0.5; 358 else if (c->mina < (float)*h / *w) 359 *h = *w * c->mina + 0.5; 360 } 361 if (baseismin) { /* increment calculation requires this */ 362 *w -= c->basew; 363 *h -= c->baseh; 364 } 365 /* adjust for increment value */ 366 if (c->incw) 367 *w -= *w % c->incw; 368 if (c->inch) 369 *h -= *h % c->inch; 370 /* restore base dimensions */ 371 *w = MAX(*w + c->basew, c->minw); 372 *h = MAX(*h + c->baseh, c->minh); 373 if (c->maxw) 374 *w = MIN(*w, c->maxw); 375 if (c->maxh) 376 *h = MIN(*h, c->maxh); 377 } 378 return *x != c->x || *y != c->y || *w != c->w || *h != c->h; 379 } 380 381 void 382 arrange(Monitor *m) 383 { 384 if (m) 385 showhide(m->stack); 386 else for (m = mons; m; m = m->next) 387 showhide(m->stack); 388 if (m) { 389 arrangemon(m); 390 restack(m); 391 } else for (m = mons; m; m = m->next) 392 arrangemon(m); 393 } 394 395 void 396 arrangemon(Monitor *m) 397 { 398 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol); 399 if (m->lt[m->sellt]->arrange) 400 m->lt[m->sellt]->arrange(m); 401 } 402 403 void 404 attach(Client *c) 405 { 406 c->next = c->mon->clients; 407 c->mon->clients = c; 408 } 409 410 void 411 attachstack(Client *c) 412 { 413 c->snext = c->mon->stack; 414 c->mon->stack = c; 415 } 416 417 void 418 buttonpress(XEvent *e) 419 { 420 unsigned int i, x, click; 421 Arg arg = {0}; 422 Client *c; 423 Monitor *m; 424 XButtonPressedEvent *ev = &e->xbutton; 425 426 click = ClkRootWin; 427 /* focus monitor if necessary */ 428 if ((m = wintomon(ev->window)) && m != selmon) { 429 unfocus(selmon->sel, 1); 430 selmon = m; 431 focus(NULL); 432 } 433 if (ev->window == selmon->barwin) { 434 i = x = 0; 435 do 436 x += TEXTW(tags[i]); 437 while (ev->x >= x && ++i < LENGTH(tags)); 438 if (i < LENGTH(tags)) { 439 click = ClkTagBar; 440 arg.ui = 1 << i; 441 } else if (ev->x < x + blw) 442 click = ClkLtSymbol; 443 else if (ev->x > selmon->ww - (int)TEXTW(stext)) 444 click = ClkStatusText; 445 else 446 click = ClkWinTitle; 447 } else if ((c = wintoclient(ev->window))) { 448 focus(c); 449 restack(selmon); 450 XAllowEvents(dpy, ReplayPointer, CurrentTime); 451 click = ClkClientWin; 452 } 453 for (i = 0; i < LENGTH(buttons); i++) 454 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button 455 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) 456 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); 457 } 458 459 void 460 checkotherwm(void) 461 { 462 xerrorxlib = XSetErrorHandler(xerrorstart); 463 /* this causes an error if some other window manager is running */ 464 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); 465 XSync(dpy, False); 466 XSetErrorHandler(xerror); 467 XSync(dpy, False); 468 } 469 470 void 471 cleanup(void) 472 { 473 Arg a = {.ui = ~0}; 474 Layout foo = { "", NULL }; 475 Monitor *m; 476 size_t i; 477 478 view(&a); 479 selmon->lt[selmon->sellt] = &foo; 480 for (m = mons; m; m = m->next) 481 while (m->stack) 482 unmanage(m->stack, 0); 483 XUngrabKey(dpy, AnyKey, AnyModifier, root); 484 while (mons) 485 cleanupmon(mons); 486 for (i = 0; i < CurLast; i++) 487 drw_cur_free(drw, cursor[i]); 488 for (i = 0; i < LENGTH(colors); i++) 489 free(scheme[i]); 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 dirty = (sw != ev->width || sh != ev->height); 562 sw = ev->width; 563 sh = ev->height; 564 if (updategeom() || dirty) { 565 drw_resize(drw, sw, bh); 566 updatebars(); 567 for (m = mons; m; m = m->next) { 568 for (c = m->clients; c; c = c->next) 569 if (c->isfullscreen) 570 resizeclient(c, m->mx, m->my, m->mw, m->mh); 571 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); 572 } 573 focus(NULL); 574 arrange(NULL); 575 } 576 } 577 } 578 579 void 580 configurerequest(XEvent *e) 581 { 582 Client *c; 583 Monitor *m; 584 XConfigureRequestEvent *ev = &e->xconfigurerequest; 585 XWindowChanges wc; 586 587 if ((c = wintoclient(ev->window))) { 588 if (ev->value_mask & CWBorderWidth) 589 c->bw = ev->border_width; 590 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) { 591 m = c->mon; 592 if (ev->value_mask & CWX) { 593 c->oldx = c->x; 594 c->x = m->mx + ev->x; 595 } 596 if (ev->value_mask & CWY) { 597 c->oldy = c->y; 598 c->y = m->my + ev->y; 599 } 600 if (ev->value_mask & CWWidth) { 601 c->oldw = c->w; 602 c->w = ev->width; 603 } 604 if (ev->value_mask & CWHeight) { 605 c->oldh = c->h; 606 c->h = ev->height; 607 } 608 if ((c->x + c->w) > m->mx + m->mw && c->isfloating) 609 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */ 610 if ((c->y + c->h) > m->my + m->mh && c->isfloating) 611 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */ 612 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight))) 613 configure(c); 614 if (ISVISIBLE(c)) 615 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 616 } else 617 configure(c); 618 } else { 619 wc.x = ev->x; 620 wc.y = ev->y; 621 wc.width = ev->width; 622 wc.height = ev->height; 623 wc.border_width = ev->border_width; 624 wc.sibling = ev->above; 625 wc.stack_mode = ev->detail; 626 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); 627 } 628 XSync(dpy, False); 629 } 630 631 Monitor * 632 createmon(void) 633 { 634 Monitor *m; 635 636 m = ecalloc(1, sizeof(Monitor)); 637 m->tagset[0] = m->tagset[1] = 1; 638 m->mfact = mfact; 639 m->nmaster = nmaster; 640 m->showbar = showbar; 641 m->topbar = topbar; 642 m->lt[0] = &layouts[0]; 643 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 644 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); 645 return m; 646 } 647 648 void 649 destroynotify(XEvent *e) 650 { 651 Client *c; 652 XDestroyWindowEvent *ev = &e->xdestroywindow; 653 654 if ((c = wintoclient(ev->window))) 655 unmanage(c, 1); 656 } 657 658 void 659 detach(Client *c) 660 { 661 Client **tc; 662 663 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next); 664 *tc = c->next; 665 } 666 667 void 668 detachstack(Client *c) 669 { 670 Client **tc, *t; 671 672 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext); 673 *tc = c->snext; 674 675 if (c == c->mon->sel) { 676 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext); 677 c->mon->sel = t; 678 } 679 } 680 681 Monitor * 682 dirtomon(int dir) 683 { 684 Monitor *m = NULL; 685 686 if (dir > 0) { 687 if (!(m = selmon->next)) 688 m = mons; 689 } else if (selmon == mons) 690 for (m = mons; m->next; m = m->next); 691 else 692 for (m = mons; m->next != selmon; m = m->next); 693 return m; 694 } 695 696 void 697 drawbar(Monitor *m) 698 { 699 int x, w, tw = 0; 700 int boxs = drw->fonts->h / 9; 701 int boxw = drw->fonts->h / 6 + 2; 702 unsigned int i, occ = 0, urg = 0; 703 Client *c; 704 705 /* draw status first so it can be overdrawn by tags later */ 706 if (m == selmon) { /* status is only drawn on selected monitor */ 707 drw_setscheme(drw, scheme[SchemeNorm]); 708 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 709 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0); 710 } 711 712 for (c = m->clients; c; c = c->next) { 713 occ |= c->tags; 714 if (c->isurgent) 715 urg |= c->tags; 716 } 717 x = 0; 718 for (i = 0; i < LENGTH(tags); i++) { 719 w = TEXTW(tags[i]); 720 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); 721 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 722 if (occ & 1 << i) 723 drw_rect(drw, x + boxs, boxs, boxw, boxw, 724 m == selmon && selmon->sel && selmon->sel->tags & 1 << i, 725 urg & 1 << i); 726 x += w; 727 } 728 w = blw = TEXTW(m->ltsymbol); 729 drw_setscheme(drw, scheme[SchemeNorm]); 730 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 731 732 if ((w = m->ww - tw - x) > bh) { 733 if (m->sel) { 734 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); 735 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 736 if (m->sel->isfloating) 737 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 738 } else { 739 drw_setscheme(drw, scheme[SchemeNorm]); 740 drw_rect(drw, x, 0, w, bh, 1, 1); 741 } 742 } 743 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 744 } 745 746 void 747 drawbars(void) 748 { 749 Monitor *m; 750 751 for (m = mons; m; m = m->next) 752 drawbar(m); 753 } 754 755 void 756 enternotify(XEvent *e) 757 { 758 Client *c; 759 Monitor *m; 760 XCrossingEvent *ev = &e->xcrossing; 761 762 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 763 return; 764 c = wintoclient(ev->window); 765 m = c ? c->mon : wintomon(ev->window); 766 if (m != selmon) { 767 unfocus(selmon->sel, 1); 768 selmon = m; 769 } else if (!c || c == selmon->sel) 770 return; 771 focus(c); 772 } 773 774 void 775 expose(XEvent *e) 776 { 777 Monitor *m; 778 XExposeEvent *ev = &e->xexpose; 779 780 if (ev->count == 0 && (m = wintomon(ev->window))) 781 drawbar(m); 782 } 783 784 void 785 focus(Client *c) 786 { 787 if (!c || !ISVISIBLE(c)) 788 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 789 if (selmon->sel && selmon->sel != c) 790 unfocus(selmon->sel, 0); 791 if (c) { 792 if (c->mon != selmon) 793 selmon = c->mon; 794 if (c->isurgent) 795 seturgent(c, 0); 796 detachstack(c); 797 attachstack(c); 798 grabbuttons(c, 1); 799 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 800 setfocus(c); 801 } else { 802 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 803 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 804 } 805 selmon->sel = c; 806 drawbars(); 807 } 808 809 /* there are some broken focus acquiring clients needing extra handling */ 810 void 811 focusin(XEvent *e) 812 { 813 XFocusChangeEvent *ev = &e->xfocus; 814 815 if (selmon->sel && ev->window != selmon->sel->win) 816 setfocus(selmon->sel); 817 } 818 819 void 820 focusmon(const Arg *arg) 821 { 822 Monitor *m; 823 824 if (!mons->next) 825 return; 826 if ((m = dirtomon(arg->i)) == selmon) 827 return; 828 unfocus(selmon->sel, 0); 829 selmon = m; 830 focus(NULL); 831 } 832 833 void 834 focusstack(const Arg *arg) 835 { 836 Client *c = NULL, *i; 837 838 if (!selmon->sel || selmon->sel->isfullscreen) 839 return; 840 if (arg->i > 0) { 841 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 842 if (!c) 843 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 844 } else { 845 for (i = selmon->clients; i != selmon->sel; i = i->next) 846 if (ISVISIBLE(i)) 847 c = i; 848 if (!c) 849 for (; i; i = i->next) 850 if (ISVISIBLE(i)) 851 c = i; 852 } 853 if (c) { 854 focus(c); 855 restack(selmon); 856 } 857 } 858 859 Atom 860 getatomprop(Client *c, Atom prop) 861 { 862 int di; 863 unsigned long dl; 864 unsigned char *p = NULL; 865 Atom da, atom = None; 866 867 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 868 &da, &di, &dl, &dl, &p) == Success && p) { 869 atom = *(Atom *)p; 870 XFree(p); 871 } 872 return atom; 873 } 874 875 int 876 getrootptr(int *x, int *y) 877 { 878 int di; 879 unsigned int dui; 880 Window dummy; 881 882 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui); 883 } 884 885 long 886 getstate(Window w) 887 { 888 int format; 889 long result = -1; 890 unsigned char *p = NULL; 891 unsigned long n, extra; 892 Atom real; 893 894 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], 895 &real, &format, &n, &extra, (unsigned char **)&p) != Success) 896 return -1; 897 if (n != 0) 898 result = *p; 899 XFree(p); 900 return result; 901 } 902 903 int 904 gettextprop(Window w, Atom atom, char *text, unsigned int size) 905 { 906 char **list = NULL; 907 int n; 908 XTextProperty name; 909 910 if (!text || size == 0) 911 return 0; 912 text[0] = '\0'; 913 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems) 914 return 0; 915 if (name.encoding == XA_STRING) 916 strncpy(text, (char *)name.value, size - 1); 917 else { 918 if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) { 919 strncpy(text, *list, size - 1); 920 XFreeStringList(list); 921 } 922 } 923 text[size - 1] = '\0'; 924 XFree(name.value); 925 return 1; 926 } 927 928 void 929 grabbuttons(Client *c, int focused) 930 { 931 updatenumlockmask(); 932 { 933 unsigned int i, j; 934 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 935 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 936 if (!focused) 937 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, 938 BUTTONMASK, GrabModeSync, GrabModeSync, None, None); 939 for (i = 0; i < LENGTH(buttons); i++) 940 if (buttons[i].click == ClkClientWin) 941 for (j = 0; j < LENGTH(modifiers); j++) 942 XGrabButton(dpy, buttons[i].button, 943 buttons[i].mask | modifiers[j], 944 c->win, False, BUTTONMASK, 945 GrabModeAsync, GrabModeSync, None, None); 946 } 947 } 948 949 void 950 grabkeys(void) 951 { 952 updatenumlockmask(); 953 { 954 unsigned int i, j; 955 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 956 KeyCode code; 957 958 XUngrabKey(dpy, AnyKey, AnyModifier, root); 959 for (i = 0; i < LENGTH(keys); i++) 960 if ((code = XKeysymToKeycode(dpy, keys[i].keysym))) 961 for (j = 0; j < LENGTH(modifiers); j++) 962 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root, 963 True, GrabModeAsync, GrabModeAsync); 964 } 965 } 966 967 void 968 incnmaster(const Arg *arg) 969 { 970 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); 971 arrange(selmon); 972 } 973 974 #ifdef XINERAMA 975 static int 976 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) 977 { 978 while (n--) 979 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org 980 && unique[n].width == info->width && unique[n].height == info->height) 981 return 0; 982 return 1; 983 } 984 #endif /* XINERAMA */ 985 986 void 987 keypress(XEvent *e) 988 { 989 unsigned int i; 990 KeySym keysym; 991 XKeyEvent *ev; 992 993 ev = &e->xkey; 994 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); 995 for (i = 0; i < LENGTH(keys); i++) 996 if (keysym == keys[i].keysym 997 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) 998 && keys[i].func) 999 keys[i].func(&(keys[i].arg)); 1000 } 1001 1002 void 1003 killclient(const Arg *arg) 1004 { 1005 if (!selmon->sel) 1006 return; 1007 if (!sendevent(selmon->sel, wmatom[WMDelete])) { 1008 XGrabServer(dpy); 1009 XSetErrorHandler(xerrordummy); 1010 XSetCloseDownMode(dpy, DestroyAll); 1011 XKillClient(dpy, selmon->sel->win); 1012 XSync(dpy, False); 1013 XSetErrorHandler(xerror); 1014 XUngrabServer(dpy); 1015 } 1016 } 1017 1018 void 1019 manage(Window w, XWindowAttributes *wa) 1020 { 1021 Client *c, *t = NULL; 1022 Window trans = None; 1023 XWindowChanges wc; 1024 1025 c = ecalloc(1, sizeof(Client)); 1026 c->win = w; 1027 /* geometry */ 1028 c->x = c->oldx = wa->x; 1029 c->y = c->oldy = wa->y; 1030 c->w = c->oldw = wa->width; 1031 c->h = c->oldh = wa->height; 1032 c->oldbw = wa->border_width; 1033 1034 updatetitle(c); 1035 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { 1036 c->mon = t->mon; 1037 c->tags = t->tags; 1038 } else { 1039 c->mon = selmon; 1040 applyrules(c); 1041 } 1042 1043 if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw) 1044 c->x = c->mon->mx + c->mon->mw - WIDTH(c); 1045 if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh) 1046 c->y = c->mon->my + c->mon->mh - HEIGHT(c); 1047 c->x = MAX(c->x, c->mon->mx); 1048 /* only fix client y-offset, if the client center might cover the bar */ 1049 c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx) 1050 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my); 1051 c->bw = borderpx; 1052 1053 wc.border_width = c->bw; 1054 XConfigureWindow(dpy, w, CWBorderWidth, &wc); 1055 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); 1056 configure(c); /* propagates border_width, if size doesn't change */ 1057 updatewindowtype(c); 1058 updatesizehints(c); 1059 updatewmhints(c); 1060 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); 1061 grabbuttons(c, 0); 1062 if (!c->isfloating) 1063 c->isfloating = c->oldstate = trans != None || c->isfixed; 1064 if (c->isfloating) 1065 XRaiseWindow(dpy, c->win); 1066 attach(c); 1067 attachstack(c); 1068 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend, 1069 (unsigned char *) &(c->win), 1); 1070 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */ 1071 setclientstate(c, NormalState); 1072 if (c->mon == selmon) 1073 unfocus(selmon->sel, 0); 1074 c->mon->sel = c; 1075 arrange(c->mon); 1076 XMapWindow(dpy, c->win); 1077 focus(NULL); 1078 } 1079 1080 void 1081 mappingnotify(XEvent *e) 1082 { 1083 XMappingEvent *ev = &e->xmapping; 1084 1085 XRefreshKeyboardMapping(ev); 1086 if (ev->request == MappingKeyboard) 1087 grabkeys(); 1088 } 1089 1090 void 1091 maprequest(XEvent *e) 1092 { 1093 static XWindowAttributes wa; 1094 XMapRequestEvent *ev = &e->xmaprequest; 1095 1096 if (!XGetWindowAttributes(dpy, ev->window, &wa)) 1097 return; 1098 if (wa.override_redirect) 1099 return; 1100 if (!wintoclient(ev->window)) 1101 manage(ev->window, &wa); 1102 } 1103 1104 void 1105 monocle(Monitor *m) 1106 { 1107 unsigned int n = 0; 1108 Client *c; 1109 1110 for (c = m->clients; c; c = c->next) 1111 if (ISVISIBLE(c)) 1112 n++; 1113 if (n > 0) /* override layout symbol */ 1114 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n); 1115 for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) 1116 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0); 1117 } 1118 1119 void 1120 motionnotify(XEvent *e) 1121 { 1122 static Monitor *mon = NULL; 1123 Monitor *m; 1124 XMotionEvent *ev = &e->xmotion; 1125 1126 if (ev->window != root) 1127 return; 1128 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) { 1129 unfocus(selmon->sel, 1); 1130 selmon = m; 1131 focus(NULL); 1132 } 1133 mon = m; 1134 } 1135 1136 void 1137 movemouse(const Arg *arg) 1138 { 1139 int x, y, ocx, ocy, nx, ny; 1140 Client *c; 1141 Monitor *m; 1142 XEvent ev; 1143 Time lasttime = 0; 1144 1145 if (!(c = selmon->sel)) 1146 return; 1147 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ 1148 return; 1149 restack(selmon); 1150 ocx = c->x; 1151 ocy = c->y; 1152 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1153 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) 1154 return; 1155 if (!getrootptr(&x, &y)) 1156 return; 1157 do { 1158 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1159 switch(ev.type) { 1160 case ConfigureRequest: 1161 case Expose: 1162 case MapRequest: 1163 handler[ev.type](&ev); 1164 break; 1165 case MotionNotify: 1166 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1167 continue; 1168 lasttime = ev.xmotion.time; 1169 1170 nx = ocx + (ev.xmotion.x - x); 1171 ny = ocy + (ev.xmotion.y - y); 1172 if (abs(selmon->wx - nx) < snap) 1173 nx = selmon->wx; 1174 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) 1175 nx = selmon->wx + selmon->ww - WIDTH(c); 1176 if (abs(selmon->wy - ny) < snap) 1177 ny = selmon->wy; 1178 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) 1179 ny = selmon->wy + selmon->wh - HEIGHT(c); 1180 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1181 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) 1182 togglefloating(NULL); 1183 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1184 resize(c, nx, ny, c->w, c->h, 1); 1185 break; 1186 } 1187 } while (ev.type != ButtonRelease); 1188 XUngrabPointer(dpy, CurrentTime); 1189 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1190 sendmon(c, m); 1191 selmon = m; 1192 focus(NULL); 1193 } 1194 } 1195 1196 Client * 1197 nexttiled(Client *c) 1198 { 1199 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next); 1200 return c; 1201 } 1202 1203 void 1204 pop(Client *c) 1205 { 1206 detach(c); 1207 attach(c); 1208 focus(c); 1209 arrange(c->mon); 1210 } 1211 1212 void 1213 propertynotify(XEvent *e) 1214 { 1215 Client *c; 1216 Window trans; 1217 XPropertyEvent *ev = &e->xproperty; 1218 1219 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1220 updatestatus(); 1221 else if (ev->state == PropertyDelete) 1222 return; /* ignore */ 1223 else if ((c = wintoclient(ev->window))) { 1224 switch(ev->atom) { 1225 default: break; 1226 case XA_WM_TRANSIENT_FOR: 1227 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1228 (c->isfloating = (wintoclient(trans)) != NULL)) 1229 arrange(c->mon); 1230 break; 1231 case XA_WM_NORMAL_HINTS: 1232 updatesizehints(c); 1233 break; 1234 case XA_WM_HINTS: 1235 updatewmhints(c); 1236 drawbars(); 1237 break; 1238 } 1239 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1240 updatetitle(c); 1241 if (c == c->mon->sel) 1242 drawbar(c->mon); 1243 } 1244 if (ev->atom == netatom[NetWMWindowType]) 1245 updatewindowtype(c); 1246 } 1247 } 1248 1249 void 1250 quit(const Arg *arg) 1251 { 1252 running = 0; 1253 } 1254 1255 Monitor * 1256 recttomon(int x, int y, int w, int h) 1257 { 1258 Monitor *m, *r = selmon; 1259 int a, area = 0; 1260 1261 for (m = mons; m; m = m->next) 1262 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1263 area = a; 1264 r = m; 1265 } 1266 return r; 1267 } 1268 1269 void 1270 resize(Client *c, int x, int y, int w, int h, int interact) 1271 { 1272 if (applysizehints(c, &x, &y, &w, &h, interact)) 1273 resizeclient(c, x, y, w, h); 1274 } 1275 1276 void 1277 resizeclient(Client *c, int x, int y, int w, int h) 1278 { 1279 XWindowChanges wc; 1280 1281 c->oldx = c->x; c->x = wc.x = x; 1282 c->oldy = c->y; c->y = wc.y = y; 1283 c->oldw = c->w; c->w = wc.width = w; 1284 c->oldh = c->h; c->h = wc.height = h; 1285 wc.border_width = c->bw; 1286 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1287 configure(c); 1288 XSync(dpy, False); 1289 } 1290 1291 void 1292 resizemouse(const Arg *arg) 1293 { 1294 int ocx, ocy, nw, nh; 1295 Client *c; 1296 Monitor *m; 1297 XEvent ev; 1298 Time lasttime = 0; 1299 1300 if (!(c = selmon->sel)) 1301 return; 1302 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1303 return; 1304 restack(selmon); 1305 ocx = c->x; 1306 ocy = c->y; 1307 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1308 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1309 return; 1310 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1311 do { 1312 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1313 switch(ev.type) { 1314 case ConfigureRequest: 1315 case Expose: 1316 case MapRequest: 1317 handler[ev.type](&ev); 1318 break; 1319 case MotionNotify: 1320 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1321 continue; 1322 lasttime = ev.xmotion.time; 1323 1324 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1325 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1326 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1327 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1328 { 1329 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1330 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1331 togglefloating(NULL); 1332 } 1333 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1334 resize(c, c->x, c->y, nw, nh, 1); 1335 break; 1336 } 1337 } while (ev.type != ButtonRelease); 1338 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1339 XUngrabPointer(dpy, CurrentTime); 1340 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1341 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1342 sendmon(c, m); 1343 selmon = m; 1344 focus(NULL); 1345 } 1346 } 1347 1348 void 1349 restack(Monitor *m) 1350 { 1351 Client *c; 1352 XEvent ev; 1353 XWindowChanges wc; 1354 1355 drawbar(m); 1356 if (!m->sel) 1357 return; 1358 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1359 XRaiseWindow(dpy, m->sel->win); 1360 if (m->lt[m->sellt]->arrange) { 1361 wc.stack_mode = Below; 1362 wc.sibling = m->barwin; 1363 for (c = m->stack; c; c = c->snext) 1364 if (!c->isfloating && ISVISIBLE(c)) { 1365 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1366 wc.sibling = c->win; 1367 } 1368 } 1369 XSync(dpy, False); 1370 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1371 } 1372 1373 void 1374 run(void) 1375 { 1376 XEvent ev; 1377 /* main event loop */ 1378 XSync(dpy, False); 1379 while (running && !XNextEvent(dpy, &ev)) 1380 if (handler[ev.type]) 1381 handler[ev.type](&ev); /* call handler */ 1382 } 1383 1384 void 1385 scan(void) 1386 { 1387 unsigned int i, num; 1388 Window d1, d2, *wins = NULL; 1389 XWindowAttributes wa; 1390 1391 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1392 for (i = 0; i < num; i++) { 1393 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1394 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1395 continue; 1396 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1397 manage(wins[i], &wa); 1398 } 1399 for (i = 0; i < num; i++) { /* now the transients */ 1400 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1401 continue; 1402 if (XGetTransientForHint(dpy, wins[i], &d1) 1403 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1404 manage(wins[i], &wa); 1405 } 1406 if (wins) 1407 XFree(wins); 1408 } 1409 } 1410 1411 void 1412 sendmon(Client *c, Monitor *m) 1413 { 1414 if (c->mon == m) 1415 return; 1416 unfocus(c, 1); 1417 detach(c); 1418 detachstack(c); 1419 c->mon = m; 1420 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1421 attach(c); 1422 attachstack(c); 1423 focus(NULL); 1424 arrange(NULL); 1425 } 1426 1427 void 1428 setclientstate(Client *c, long state) 1429 { 1430 long data[] = { state, None }; 1431 1432 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1433 PropModeReplace, (unsigned char *)data, 2); 1434 } 1435 1436 int 1437 sendevent(Client *c, Atom proto) 1438 { 1439 int n; 1440 Atom *protocols; 1441 int exists = 0; 1442 XEvent ev; 1443 1444 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1445 while (!exists && n--) 1446 exists = protocols[n] == proto; 1447 XFree(protocols); 1448 } 1449 if (exists) { 1450 ev.type = ClientMessage; 1451 ev.xclient.window = c->win; 1452 ev.xclient.message_type = wmatom[WMProtocols]; 1453 ev.xclient.format = 32; 1454 ev.xclient.data.l[0] = proto; 1455 ev.xclient.data.l[1] = CurrentTime; 1456 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1457 } 1458 return exists; 1459 } 1460 1461 void 1462 setfocus(Client *c) 1463 { 1464 if (!c->neverfocus) { 1465 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1466 XChangeProperty(dpy, root, netatom[NetActiveWindow], 1467 XA_WINDOW, 32, PropModeReplace, 1468 (unsigned char *) &(c->win), 1); 1469 } 1470 sendevent(c, wmatom[WMTakeFocus]); 1471 } 1472 1473 void 1474 setfullscreen(Client *c, int fullscreen) 1475 { 1476 if (fullscreen && !c->isfullscreen) { 1477 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1478 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1479 c->isfullscreen = 1; 1480 c->oldstate = c->isfloating; 1481 c->oldbw = c->bw; 1482 c->bw = 0; 1483 c->isfloating = 1; 1484 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1485 XRaiseWindow(dpy, c->win); 1486 } else if (!fullscreen && c->isfullscreen){ 1487 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1488 PropModeReplace, (unsigned char*)0, 0); 1489 c->isfullscreen = 0; 1490 c->isfloating = c->oldstate; 1491 c->bw = c->oldbw; 1492 c->x = c->oldx; 1493 c->y = c->oldy; 1494 c->w = c->oldw; 1495 c->h = c->oldh; 1496 resizeclient(c, c->x, c->y, c->w, c->h); 1497 arrange(c->mon); 1498 } 1499 } 1500 1501 void 1502 setlayout(const Arg *arg) 1503 { 1504 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1505 selmon->sellt ^= 1; 1506 if (arg && arg->v) 1507 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1508 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol); 1509 if (selmon->sel) 1510 arrange(selmon); 1511 else 1512 drawbar(selmon); 1513 } 1514 1515 /* arg > 1.0 will set mfact absolutely */ 1516 void 1517 setmfact(const Arg *arg) 1518 { 1519 float f; 1520 1521 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1522 return; 1523 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1524 if (f < 0.05 || f > 0.95) 1525 return; 1526 selmon->mfact = f; 1527 arrange(selmon); 1528 } 1529 1530 void 1531 setup(void) 1532 { 1533 int i; 1534 XSetWindowAttributes wa; 1535 Atom utf8string; 1536 1537 /* clean up any zombies immediately */ 1538 sigchld(0); 1539 1540 /* init screen */ 1541 screen = DefaultScreen(dpy); 1542 sw = DisplayWidth(dpy, screen); 1543 sh = DisplayHeight(dpy, screen); 1544 root = RootWindow(dpy, screen); 1545 drw = drw_create(dpy, screen, root, sw, sh); 1546 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1547 die("no fonts could be loaded."); 1548 lrpad = drw->fonts->h; 1549 bh = drw->fonts->h + 2; 1550 updategeom(); 1551 /* init atoms */ 1552 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1553 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1554 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1555 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1556 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1557 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1558 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1559 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1560 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1561 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1562 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1563 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1564 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1565 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1566 /* init cursors */ 1567 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1568 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1569 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1570 /* init appearance */ 1571 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1572 for (i = 0; i < LENGTH(colors); i++) 1573 scheme[i] = drw_scm_create(drw, colors[i], 3); 1574 /* init bars */ 1575 updatebars(); 1576 updatestatus(); 1577 /* supporting window for NetWMCheck */ 1578 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1579 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1580 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1581 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1582 PropModeReplace, (unsigned char *) "dwm", 3); 1583 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1584 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1585 /* EWMH support per view */ 1586 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1587 PropModeReplace, (unsigned char *) netatom, NetLast); 1588 XDeleteProperty(dpy, root, netatom[NetClientList]); 1589 /* select events */ 1590 wa.cursor = cursor[CurNormal]->cursor; 1591 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1592 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1593 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1594 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1595 XSelectInput(dpy, root, wa.event_mask); 1596 grabkeys(); 1597 focus(NULL); 1598 } 1599 1600 1601 void 1602 seturgent(Client *c, int urg) 1603 { 1604 XWMHints *wmh; 1605 1606 c->isurgent = urg; 1607 if (!(wmh = XGetWMHints(dpy, c->win))) 1608 return; 1609 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1610 XSetWMHints(dpy, c->win, wmh); 1611 XFree(wmh); 1612 } 1613 1614 void 1615 showhide(Client *c) 1616 { 1617 if (!c) 1618 return; 1619 if (ISVISIBLE(c)) { 1620 /* show clients top down */ 1621 XMoveWindow(dpy, c->win, c->x, c->y); 1622 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen) 1623 resize(c, c->x, c->y, c->w, c->h, 0); 1624 showhide(c->snext); 1625 } else { 1626 /* hide clients bottom up */ 1627 showhide(c->snext); 1628 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1629 } 1630 } 1631 1632 void 1633 sigchld(int unused) 1634 { 1635 if (signal(SIGCHLD, sigchld) == SIG_ERR) 1636 die("can't install SIGCHLD handler:"); 1637 while (0 < waitpid(-1, NULL, WNOHANG)); 1638 } 1639 1640 void 1641 spawn(const Arg *arg) 1642 { 1643 if (arg->v == dmenucmd) 1644 dmenumon[0] = '0' + selmon->num; 1645 if (fork() == 0) { 1646 if (dpy) 1647 close(ConnectionNumber(dpy)); 1648 setsid(); 1649 execvp(((char **)arg->v)[0], (char **)arg->v); 1650 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]); 1651 perror(" failed"); 1652 exit(EXIT_SUCCESS); 1653 } 1654 } 1655 1656 void 1657 tag(const Arg *arg) 1658 { 1659 if (selmon->sel && arg->ui & TAGMASK) { 1660 selmon->sel->tags = arg->ui & TAGMASK; 1661 focus(NULL); 1662 arrange(selmon); 1663 } 1664 } 1665 1666 void 1667 tagmon(const Arg *arg) 1668 { 1669 if (!selmon->sel || !mons->next) 1670 return; 1671 sendmon(selmon->sel, dirtomon(arg->i)); 1672 } 1673 1674 void 1675 tile(Monitor *m) 1676 { 1677 unsigned int i, n, h, mw, my, ty; 1678 Client *c; 1679 1680 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++); 1681 if (n == 0) 1682 return; 1683 1684 if (n > m->nmaster) 1685 mw = m->nmaster ? m->ww * m->mfact : 0; 1686 else 1687 mw = m->ww; 1688 for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) 1689 if (i < m->nmaster) { 1690 h = (m->wh - my) / (MIN(n, m->nmaster) - i); 1691 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0); 1692 if (my + HEIGHT(c) < m->wh) 1693 my += HEIGHT(c); 1694 } else { 1695 h = (m->wh - ty) / (n - i); 1696 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0); 1697 if (ty + HEIGHT(c) < m->wh) 1698 ty += HEIGHT(c); 1699 } 1700 } 1701 1702 void 1703 togglebar(const Arg *arg) 1704 { 1705 selmon->showbar = !selmon->showbar; 1706 updatebarpos(selmon); 1707 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1708 arrange(selmon); 1709 } 1710 1711 void 1712 togglefloating(const Arg *arg) 1713 { 1714 if (!selmon->sel) 1715 return; 1716 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */ 1717 return; 1718 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed; 1719 if (selmon->sel->isfloating) 1720 resize(selmon->sel, selmon->sel->x, selmon->sel->y, 1721 selmon->sel->w, selmon->sel->h, 0); 1722 arrange(selmon); 1723 } 1724 1725 void 1726 toggletag(const Arg *arg) 1727 { 1728 unsigned int newtags; 1729 1730 if (!selmon->sel) 1731 return; 1732 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1733 if (newtags) { 1734 selmon->sel->tags = newtags; 1735 focus(NULL); 1736 arrange(selmon); 1737 } 1738 } 1739 1740 void 1741 toggleview(const Arg *arg) 1742 { 1743 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1744 1745 if (newtagset) { 1746 selmon->tagset[selmon->seltags] = newtagset; 1747 focus(NULL); 1748 arrange(selmon); 1749 } 1750 } 1751 1752 void 1753 unfocus(Client *c, int setfocus) 1754 { 1755 if (!c) 1756 return; 1757 grabbuttons(c, 0); 1758 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1759 if (setfocus) { 1760 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1761 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1762 } 1763 } 1764 1765 void 1766 unmanage(Client *c, int destroyed) 1767 { 1768 Monitor *m = c->mon; 1769 XWindowChanges wc; 1770 1771 detach(c); 1772 detachstack(c); 1773 if (!destroyed) { 1774 wc.border_width = c->oldbw; 1775 XGrabServer(dpy); /* avoid race conditions */ 1776 XSetErrorHandler(xerrordummy); 1777 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1778 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1779 setclientstate(c, WithdrawnState); 1780 XSync(dpy, False); 1781 XSetErrorHandler(xerror); 1782 XUngrabServer(dpy); 1783 } 1784 free(c); 1785 focus(NULL); 1786 updateclientlist(); 1787 arrange(m); 1788 } 1789 1790 void 1791 unmapnotify(XEvent *e) 1792 { 1793 Client *c; 1794 XUnmapEvent *ev = &e->xunmap; 1795 1796 if ((c = wintoclient(ev->window))) { 1797 if (ev->send_event) 1798 setclientstate(c, WithdrawnState); 1799 else 1800 unmanage(c, 0); 1801 } 1802 } 1803 1804 void 1805 updatebars(void) 1806 { 1807 Monitor *m; 1808 XSetWindowAttributes wa = { 1809 .override_redirect = True, 1810 .background_pixmap = ParentRelative, 1811 .event_mask = ButtonPressMask|ExposureMask 1812 }; 1813 XClassHint ch = {"dwm", "dwm"}; 1814 for (m = mons; m; m = m->next) { 1815 if (m->barwin) 1816 continue; 1817 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1818 CopyFromParent, DefaultVisual(dpy, screen), 1819 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1820 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1821 XMapRaised(dpy, m->barwin); 1822 XSetClassHint(dpy, m->barwin, &ch); 1823 } 1824 } 1825 1826 void 1827 updatebarpos(Monitor *m) 1828 { 1829 m->wy = m->my; 1830 m->wh = m->mh; 1831 if (m->showbar) { 1832 m->wh -= bh; 1833 m->by = m->topbar ? m->wy : m->wy + m->wh; 1834 m->wy = m->topbar ? m->wy + bh : m->wy; 1835 } else 1836 m->by = -bh; 1837 } 1838 1839 void 1840 updateclientlist() 1841 { 1842 Client *c; 1843 Monitor *m; 1844 1845 XDeleteProperty(dpy, root, netatom[NetClientList]); 1846 for (m = mons; m; m = m->next) 1847 for (c = m->clients; c; c = c->next) 1848 XChangeProperty(dpy, root, netatom[NetClientList], 1849 XA_WINDOW, 32, PropModeAppend, 1850 (unsigned char *) &(c->win), 1); 1851 } 1852 1853 int 1854 updategeom(void) 1855 { 1856 int dirty = 0; 1857 1858 #ifdef XINERAMA 1859 if (XineramaIsActive(dpy)) { 1860 int i, j, n, nn; 1861 Client *c; 1862 Monitor *m; 1863 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1864 XineramaScreenInfo *unique = NULL; 1865 1866 for (n = 0, m = mons; m; m = m->next, n++); 1867 /* only consider unique geometries as separate screens */ 1868 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1869 for (i = 0, j = 0; i < nn; i++) 1870 if (isuniquegeom(unique, j, &info[i])) 1871 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1872 XFree(info); 1873 nn = j; 1874 if (n <= nn) { /* new monitors available */ 1875 for (i = 0; i < (nn - n); i++) { 1876 for (m = mons; m && m->next; m = m->next); 1877 if (m) 1878 m->next = createmon(); 1879 else 1880 mons = createmon(); 1881 } 1882 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 1883 if (i >= n 1884 || unique[i].x_org != m->mx || unique[i].y_org != m->my 1885 || unique[i].width != m->mw || unique[i].height != m->mh) 1886 { 1887 dirty = 1; 1888 m->num = i; 1889 m->mx = m->wx = unique[i].x_org; 1890 m->my = m->wy = unique[i].y_org; 1891 m->mw = m->ww = unique[i].width; 1892 m->mh = m->wh = unique[i].height; 1893 updatebarpos(m); 1894 } 1895 } else { /* less monitors available nn < n */ 1896 for (i = nn; i < n; i++) { 1897 for (m = mons; m && m->next; m = m->next); 1898 while ((c = m->clients)) { 1899 dirty = 1; 1900 m->clients = c->next; 1901 detachstack(c); 1902 c->mon = mons; 1903 attach(c); 1904 attachstack(c); 1905 } 1906 if (m == selmon) 1907 selmon = mons; 1908 cleanupmon(m); 1909 } 1910 } 1911 free(unique); 1912 } else 1913 #endif /* XINERAMA */ 1914 { /* default monitor setup */ 1915 if (!mons) 1916 mons = createmon(); 1917 if (mons->mw != sw || mons->mh != sh) { 1918 dirty = 1; 1919 mons->mw = mons->ww = sw; 1920 mons->mh = mons->wh = sh; 1921 updatebarpos(mons); 1922 } 1923 } 1924 if (dirty) { 1925 selmon = mons; 1926 selmon = wintomon(root); 1927 } 1928 return dirty; 1929 } 1930 1931 void 1932 updatenumlockmask(void) 1933 { 1934 unsigned int i, j; 1935 XModifierKeymap *modmap; 1936 1937 numlockmask = 0; 1938 modmap = XGetModifierMapping(dpy); 1939 for (i = 0; i < 8; i++) 1940 for (j = 0; j < modmap->max_keypermod; j++) 1941 if (modmap->modifiermap[i * modmap->max_keypermod + j] 1942 == XKeysymToKeycode(dpy, XK_Num_Lock)) 1943 numlockmask = (1 << i); 1944 XFreeModifiermap(modmap); 1945 } 1946 1947 void 1948 updatesizehints(Client *c) 1949 { 1950 long msize; 1951 XSizeHints size; 1952 1953 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 1954 /* size is uninitialized, ensure that size.flags aren't used */ 1955 size.flags = PSize; 1956 if (size.flags & PBaseSize) { 1957 c->basew = size.base_width; 1958 c->baseh = size.base_height; 1959 } else if (size.flags & PMinSize) { 1960 c->basew = size.min_width; 1961 c->baseh = size.min_height; 1962 } else 1963 c->basew = c->baseh = 0; 1964 if (size.flags & PResizeInc) { 1965 c->incw = size.width_inc; 1966 c->inch = size.height_inc; 1967 } else 1968 c->incw = c->inch = 0; 1969 if (size.flags & PMaxSize) { 1970 c->maxw = size.max_width; 1971 c->maxh = size.max_height; 1972 } else 1973 c->maxw = c->maxh = 0; 1974 if (size.flags & PMinSize) { 1975 c->minw = size.min_width; 1976 c->minh = size.min_height; 1977 } else if (size.flags & PBaseSize) { 1978 c->minw = size.base_width; 1979 c->minh = size.base_height; 1980 } else 1981 c->minw = c->minh = 0; 1982 if (size.flags & PAspect) { 1983 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 1984 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 1985 } else 1986 c->maxa = c->mina = 0.0; 1987 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 1988 } 1989 1990 void 1991 updatestatus(void) 1992 { 1993 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 1994 strcpy(stext, "dwm-"VERSION); 1995 drawbar(selmon); 1996 } 1997 1998 void 1999 updatetitle(Client *c) 2000 { 2001 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 2002 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 2003 if (c->name[0] == '\0') /* hack to mark broken clients */ 2004 strcpy(c->name, broken); 2005 } 2006 2007 void 2008 updatewindowtype(Client *c) 2009 { 2010 Atom state = getatomprop(c, netatom[NetWMState]); 2011 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2012 2013 if (state == netatom[NetWMFullscreen]) 2014 setfullscreen(c, 1); 2015 if (wtype == netatom[NetWMWindowTypeDialog]) 2016 c->isfloating = 1; 2017 } 2018 2019 void 2020 updatewmhints(Client *c) 2021 { 2022 XWMHints *wmh; 2023 2024 if ((wmh = XGetWMHints(dpy, c->win))) { 2025 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2026 wmh->flags &= ~XUrgencyHint; 2027 XSetWMHints(dpy, c->win, wmh); 2028 } else 2029 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2030 if (wmh->flags & InputHint) 2031 c->neverfocus = !wmh->input; 2032 else 2033 c->neverfocus = 0; 2034 XFree(wmh); 2035 } 2036 } 2037 2038 void 2039 view(const Arg *arg) 2040 { 2041 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2042 return; 2043 selmon->seltags ^= 1; /* toggle sel tagset */ 2044 if (arg->ui & TAGMASK) 2045 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2046 focus(NULL); 2047 arrange(selmon); 2048 } 2049 2050 Client * 2051 wintoclient(Window w) 2052 { 2053 Client *c; 2054 Monitor *m; 2055 2056 for (m = mons; m; m = m->next) 2057 for (c = m->clients; c; c = c->next) 2058 if (c->win == w) 2059 return c; 2060 return NULL; 2061 } 2062 2063 Monitor * 2064 wintomon(Window w) 2065 { 2066 int x, y; 2067 Client *c; 2068 Monitor *m; 2069 2070 if (w == root && getrootptr(&x, &y)) 2071 return recttomon(x, y, 1, 1); 2072 for (m = mons; m; m = m->next) 2073 if (w == m->barwin) 2074 return m; 2075 if ((c = wintoclient(w))) 2076 return c->mon; 2077 return selmon; 2078 } 2079 2080 /* There's no way to check accesses to destroyed windows, thus those cases are 2081 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2082 * default error handler, which may call exit. */ 2083 int 2084 xerror(Display *dpy, XErrorEvent *ee) 2085 { 2086 if (ee->error_code == BadWindow 2087 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2088 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2089 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2090 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2091 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2092 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2093 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2094 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2095 return 0; 2096 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2097 ee->request_code, ee->error_code); 2098 return xerrorxlib(dpy, ee); /* may call exit */ 2099 } 2100 2101 int 2102 xerrordummy(Display *dpy, XErrorEvent *ee) 2103 { 2104 return 0; 2105 } 2106 2107 /* Startup Error handler to check if another window manager 2108 * is already running. */ 2109 int 2110 xerrorstart(Display *dpy, XErrorEvent *ee) 2111 { 2112 die("dwm: another window manager is already running"); 2113 return -1; 2114 } 2115 2116 void 2117 zoom(const Arg *arg) 2118 { 2119 Client *c = selmon->sel; 2120 2121 if (!selmon->lt[selmon->sellt]->arrange 2122 || (selmon->sel && selmon->sel->isfloating)) 2123 return; 2124 if (c == nexttiled(selmon->clients)) 2125 if (!c || !(c = nexttiled(c->next))) 2126 return; 2127 pop(c); 2128 } 2129 2130 int 2131 main(int argc, char *argv[]) 2132 { 2133 if (argc == 2 && !strcmp("-v", argv[1])) 2134 die("dwm-"VERSION); 2135 else if (argc != 1) 2136 die("usage: dwm [-v]"); 2137 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2138 fputs("warning: no locale support\n", stderr); 2139 if (!(dpy = XOpenDisplay(NULL))) 2140 die("dwm: cannot open display"); 2141 checkotherwm(); 2142 setup(); 2143 #ifdef __OpenBSD__ 2144 if (pledge("stdio rpath proc exec", NULL) == -1) 2145 die("pledge"); 2146 #endif /* __OpenBSD__ */ 2147 scan(); 2148 run(); 2149 cleanup(); 2150 XCloseDisplay(dpy); 2151 return EXIT_SUCCESS; 2152 }