dwm.c (52861B)
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, hintsvalid; 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 int gappih; /* horizontal gap between windows */ 123 int gappiv; /* vertical gap between windows */ 124 int gappoh; /* horizontal outer gaps */ 125 int gappov; /* vertical outer gaps */ 126 unsigned int seltags; 127 unsigned int sellt; 128 unsigned int tagset[2]; 129 int showbar; 130 int topbar; 131 Client *clients; 132 Client *sel; 133 Client *stack; 134 Monitor *next; 135 Window barwin; 136 const Layout *lt[2]; 137 }; 138 139 typedef struct { 140 const char *class; 141 const char *instance; 142 const char *title; 143 unsigned int tags; 144 int isfloating; 145 int monitor; 146 } Rule; 147 148 /* function declarations */ 149 static void applyrules(Client *c); 150 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact); 151 static void arrange(Monitor *m); 152 static void arrangemon(Monitor *m); 153 static void attach(Client *c); 154 static void attachstack(Client *c); 155 static void buttonpress(XEvent *e); 156 static void checkotherwm(void); 157 static void cleanup(void); 158 static void cleanupmon(Monitor *mon); 159 static void clientmessage(XEvent *e); 160 static void configure(Client *c); 161 static void configurenotify(XEvent *e); 162 static void configurerequest(XEvent *e); 163 static Monitor *createmon(void); 164 static void destroynotify(XEvent *e); 165 static void detach(Client *c); 166 static void detachstack(Client *c); 167 static Monitor *dirtomon(int dir); 168 static void drawbar(Monitor *m); 169 static void drawbars(void); 170 static void enternotify(XEvent *e); 171 static void expose(XEvent *e); 172 static void focus(Client *c); 173 static void focusin(XEvent *e); 174 static void focusmon(const Arg *arg); 175 static void focusstack(const Arg *arg); 176 static Atom getatomprop(Client *c, Atom prop); 177 static int getrootptr(int *x, int *y); 178 static long getstate(Window w); 179 static int gettextprop(Window w, Atom atom, char *text, unsigned int size); 180 static void grabbuttons(Client *c, int focused); 181 static void grabkeys(void); 182 static void incnmaster(const Arg *arg); 183 static void keypress(XEvent *e); 184 static void killclient(const Arg *arg); 185 static void manage(Window w, XWindowAttributes *wa); 186 static void mappingnotify(XEvent *e); 187 static void maprequest(XEvent *e); 188 static void monocle(Monitor *m); 189 static void motionnotify(XEvent *e); 190 static void movemouse(const Arg *arg); 191 static Client *nexttiled(Client *c); 192 static void pop(Client *c); 193 static void propertynotify(XEvent *e); 194 static void quit(const Arg *arg); 195 static Monitor *recttomon(int x, int y, int w, int h); 196 static void resize(Client *c, int x, int y, int w, int h, int interact); 197 static void resizeclient(Client *c, int x, int y, int w, int h); 198 static void resizemouse(const Arg *arg); 199 static void restack(Monitor *m); 200 static void run(void); 201 static void scan(void); 202 static int sendevent(Client *c, Atom proto); 203 static void sendmon(Client *c, Monitor *m); 204 static void setclientstate(Client *c, long state); 205 static void setfocus(Client *c); 206 static void setfullscreen(Client *c, int fullscreen); 207 static void setlayout(const Arg *arg); 208 static void setmfact(const Arg *arg); 209 static void setup(void); 210 static void seturgent(Client *c, int urg); 211 static void showhide(Client *c); 212 static void spawn(const Arg *arg); 213 static void tag(const Arg *arg); 214 static void tagmon(const Arg *arg); 215 static void togglebar(const Arg *arg); 216 static void togglefloating(const Arg *arg); 217 static void toggletag(const Arg *arg); 218 static void toggleview(const Arg *arg); 219 static void unfocus(Client *c, int setfocus); 220 static void unmanage(Client *c, int destroyed); 221 static void unmapnotify(XEvent *e); 222 static void updatebarpos(Monitor *m); 223 static void updatebars(void); 224 static void updateclientlist(void); 225 static int updategeom(void); 226 static void updatenumlockmask(void); 227 static void updatesizehints(Client *c); 228 static void updatestatus(void); 229 static void updatetitle(Client *c); 230 static void updatewindowtype(Client *c); 231 static void updatewmhints(Client *c); 232 static void view(const Arg *arg); 233 static Client *wintoclient(Window w); 234 static Monitor *wintomon(Window w); 235 static int xerror(Display *dpy, XErrorEvent *ee); 236 static int xerrordummy(Display *dpy, XErrorEvent *ee); 237 static int xerrorstart(Display *dpy, XErrorEvent *ee); 238 static void zoom(const Arg *arg); 239 240 /* variables */ 241 static const char broken[] = "broken"; 242 static char stext[256]; 243 static int screen; 244 static int sw, sh; /* X display screen geometry width, height */ 245 static int bh; /* bar height */ 246 static int lrpad; /* sum of left and right padding for text */ 247 static int (*xerrorxlib)(Display *, XErrorEvent *); 248 static unsigned int numlockmask = 0; 249 static void (*handler[LASTEvent]) (XEvent *) = { 250 [ButtonPress] = buttonpress, 251 [ClientMessage] = clientmessage, 252 [ConfigureRequest] = configurerequest, 253 [ConfigureNotify] = configurenotify, 254 [DestroyNotify] = destroynotify, 255 [EnterNotify] = enternotify, 256 [Expose] = expose, 257 [FocusIn] = focusin, 258 [KeyPress] = keypress, 259 [MappingNotify] = mappingnotify, 260 [MapRequest] = maprequest, 261 [MotionNotify] = motionnotify, 262 [PropertyNotify] = propertynotify, 263 [UnmapNotify] = unmapnotify 264 }; 265 static Atom wmatom[WMLast], netatom[NetLast]; 266 static int running = 1; 267 static Cur *cursor[CurLast]; 268 static Clr **scheme; 269 static Display *dpy; 270 static Drw *drw; 271 static Monitor *mons, *selmon; 272 static Window root, wmcheckwin; 273 274 /* configuration, allows nested code to access above variables */ 275 #include "config.h" 276 277 /* compile-time check if all tags fit into an unsigned int bit array. */ 278 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; 279 280 /* function implementations */ 281 void 282 applyrules(Client *c) 283 { 284 const char *class, *instance; 285 unsigned int i; 286 const Rule *r; 287 Monitor *m; 288 XClassHint ch = { NULL, NULL }; 289 290 /* rule matching */ 291 c->isfloating = 0; 292 c->tags = 0; 293 XGetClassHint(dpy, c->win, &ch); 294 class = ch.res_class ? ch.res_class : broken; 295 instance = ch.res_name ? ch.res_name : broken; 296 297 for (i = 0; i < LENGTH(rules); i++) { 298 r = &rules[i]; 299 if ((!r->title || strstr(c->name, r->title)) 300 && (!r->class || strstr(class, r->class)) 301 && (!r->instance || strstr(instance, r->instance))) 302 { 303 c->isfloating = r->isfloating; 304 c->tags |= r->tags; 305 for (m = mons; m && m->num != r->monitor; m = m->next); 306 if (m) 307 c->mon = m; 308 } 309 } 310 if (ch.res_class) 311 XFree(ch.res_class); 312 if (ch.res_name) 313 XFree(ch.res_name); 314 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags]; 315 } 316 317 int 318 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) 319 { 320 int baseismin; 321 Monitor *m = c->mon; 322 323 /* set minimum possible */ 324 *w = MAX(1, *w); 325 *h = MAX(1, *h); 326 if (interact) { 327 if (*x > sw) 328 *x = sw - WIDTH(c); 329 if (*y > sh) 330 *y = sh - HEIGHT(c); 331 if (*x + *w + 2 * c->bw < 0) 332 *x = 0; 333 if (*y + *h + 2 * c->bw < 0) 334 *y = 0; 335 } else { 336 if (*x >= m->wx + m->ww) 337 *x = m->wx + m->ww - WIDTH(c); 338 if (*y >= m->wy + m->wh) 339 *y = m->wy + m->wh - HEIGHT(c); 340 if (*x + *w + 2 * c->bw <= m->wx) 341 *x = m->wx; 342 if (*y + *h + 2 * c->bw <= m->wy) 343 *y = m->wy; 344 } 345 if (*h < bh) 346 *h = bh; 347 if (*w < bh) 348 *w = bh; 349 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { 350 if (!c->hintsvalid) 351 updatesizehints(c); 352 /* see last two sentences in ICCCM 4.1.2.3 */ 353 baseismin = c->basew == c->minw && c->baseh == c->minh; 354 if (!baseismin) { /* temporarily remove base dimensions */ 355 *w -= c->basew; 356 *h -= c->baseh; 357 } 358 /* adjust for aspect limits */ 359 if (c->mina > 0 && c->maxa > 0) { 360 if (c->maxa < (float)*w / *h) 361 *w = *h * c->maxa + 0.5; 362 else if (c->mina < (float)*h / *w) 363 *h = *w * c->mina + 0.5; 364 } 365 if (baseismin) { /* increment calculation requires this */ 366 *w -= c->basew; 367 *h -= c->baseh; 368 } 369 /* adjust for increment value */ 370 if (c->incw) 371 *w -= *w % c->incw; 372 if (c->inch) 373 *h -= *h % c->inch; 374 /* restore base dimensions */ 375 *w = MAX(*w + c->basew, c->minw); 376 *h = MAX(*h + c->baseh, c->minh); 377 if (c->maxw) 378 *w = MIN(*w, c->maxw); 379 if (c->maxh) 380 *h = MIN(*h, c->maxh); 381 } 382 return *x != c->x || *y != c->y || *w != c->w || *h != c->h; 383 } 384 385 void 386 arrange(Monitor *m) 387 { 388 if (m) 389 showhide(m->stack); 390 else for (m = mons; m; m = m->next) 391 showhide(m->stack); 392 if (m) { 393 arrangemon(m); 394 restack(m); 395 } else for (m = mons; m; m = m->next) 396 arrangemon(m); 397 } 398 399 void 400 arrangemon(Monitor *m) 401 { 402 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol); 403 if (m->lt[m->sellt]->arrange) 404 m->lt[m->sellt]->arrange(m); 405 } 406 407 void 408 attach(Client *c) 409 { 410 c->next = c->mon->clients; 411 c->mon->clients = c; 412 } 413 414 void 415 attachstack(Client *c) 416 { 417 c->snext = c->mon->stack; 418 c->mon->stack = c; 419 } 420 421 void 422 buttonpress(XEvent *e) 423 { 424 unsigned int i, x, click; 425 Arg arg = {0}; 426 Client *c; 427 Monitor *m; 428 XButtonPressedEvent *ev = &e->xbutton; 429 430 click = ClkRootWin; 431 /* focus monitor if necessary */ 432 if ((m = wintomon(ev->window)) && m != selmon) { 433 unfocus(selmon->sel, 1); 434 selmon = m; 435 focus(NULL); 436 } 437 if (ev->window == selmon->barwin) { 438 i = x = 0; 439 do 440 x += TEXTW(tags[i]); 441 while (ev->x >= x && ++i < LENGTH(tags)); 442 if (i < LENGTH(tags)) { 443 click = ClkTagBar; 444 arg.ui = 1 << i; 445 } else if (ev->x < x + TEXTW(selmon->ltsymbol)) 446 click = ClkLtSymbol; 447 else if (ev->x > selmon->ww - (int)TEXTW(stext)) 448 click = ClkStatusText; 449 else 450 click = ClkWinTitle; 451 } else if ((c = wintoclient(ev->window))) { 452 focus(c); 453 restack(selmon); 454 XAllowEvents(dpy, ReplayPointer, CurrentTime); 455 click = ClkClientWin; 456 } 457 for (i = 0; i < LENGTH(buttons); i++) 458 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button 459 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) 460 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); 461 } 462 463 void 464 checkotherwm(void) 465 { 466 xerrorxlib = XSetErrorHandler(xerrorstart); 467 /* this causes an error if some other window manager is running */ 468 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); 469 XSync(dpy, False); 470 XSetErrorHandler(xerror); 471 XSync(dpy, False); 472 } 473 474 void 475 cleanup(void) 476 { 477 Arg a = {.ui = ~0}; 478 Layout foo = { "", NULL }; 479 Monitor *m; 480 size_t i; 481 482 view(&a); 483 selmon->lt[selmon->sellt] = &foo; 484 for (m = mons; m; m = m->next) 485 while (m->stack) 486 unmanage(m->stack, 0); 487 XUngrabKey(dpy, AnyKey, AnyModifier, root); 488 while (mons) 489 cleanupmon(mons); 490 for (i = 0; i < CurLast; i++) 491 drw_cur_free(drw, cursor[i]); 492 for (i = 0; i < LENGTH(colors); i++) 493 free(scheme[i]); 494 free(scheme); 495 XDestroyWindow(dpy, wmcheckwin); 496 drw_free(drw); 497 XSync(dpy, False); 498 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); 499 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 500 } 501 502 void 503 cleanupmon(Monitor *mon) 504 { 505 Monitor *m; 506 507 if (mon == mons) 508 mons = mons->next; 509 else { 510 for (m = mons; m && m->next != mon; m = m->next); 511 m->next = mon->next; 512 } 513 XUnmapWindow(dpy, mon->barwin); 514 XDestroyWindow(dpy, mon->barwin); 515 free(mon); 516 } 517 518 void 519 clientmessage(XEvent *e) 520 { 521 XClientMessageEvent *cme = &e->xclient; 522 Client *c = wintoclient(cme->window); 523 524 if (!c) 525 return; 526 if (cme->message_type == netatom[NetWMState]) { 527 if (cme->data.l[1] == netatom[NetWMFullscreen] 528 || cme->data.l[2] == netatom[NetWMFullscreen]) 529 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */ 530 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen))); 531 } else if (cme->message_type == netatom[NetActiveWindow]) { 532 if (c != selmon->sel && !c->isurgent) 533 seturgent(c, 1); 534 } 535 } 536 537 void 538 configure(Client *c) 539 { 540 XConfigureEvent ce; 541 542 ce.type = ConfigureNotify; 543 ce.display = dpy; 544 ce.event = c->win; 545 ce.window = c->win; 546 ce.x = c->x; 547 ce.y = c->y; 548 ce.width = c->w; 549 ce.height = c->h; 550 ce.border_width = c->bw; 551 ce.above = None; 552 ce.override_redirect = False; 553 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); 554 } 555 556 void 557 configurenotify(XEvent *e) 558 { 559 Monitor *m; 560 Client *c; 561 XConfigureEvent *ev = &e->xconfigure; 562 int dirty; 563 564 /* TODO: updategeom handling sucks, needs to be simplified */ 565 if (ev->window == root) { 566 dirty = (sw != ev->width || sh != ev->height); 567 sw = ev->width; 568 sh = ev->height; 569 if (updategeom() || dirty) { 570 drw_resize(drw, sw, bh); 571 updatebars(); 572 for (m = mons; m; m = m->next) { 573 for (c = m->clients; c; c = c->next) 574 if (c->isfullscreen) 575 resizeclient(c, m->mx, m->my, m->mw, m->mh); 576 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); 577 } 578 focus(NULL); 579 arrange(NULL); 580 } 581 } 582 } 583 584 void 585 configurerequest(XEvent *e) 586 { 587 Client *c; 588 Monitor *m; 589 XConfigureRequestEvent *ev = &e->xconfigurerequest; 590 XWindowChanges wc; 591 592 if ((c = wintoclient(ev->window))) { 593 if (ev->value_mask & CWBorderWidth) 594 c->bw = ev->border_width; 595 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) { 596 m = c->mon; 597 if (ev->value_mask & CWX) { 598 c->oldx = c->x; 599 c->x = m->mx + ev->x; 600 } 601 if (ev->value_mask & CWY) { 602 c->oldy = c->y; 603 c->y = m->my + ev->y; 604 } 605 if (ev->value_mask & CWWidth) { 606 c->oldw = c->w; 607 c->w = ev->width; 608 } 609 if (ev->value_mask & CWHeight) { 610 c->oldh = c->h; 611 c->h = ev->height; 612 } 613 if ((c->x + c->w) > m->mx + m->mw && c->isfloating) 614 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */ 615 if ((c->y + c->h) > m->my + m->mh && c->isfloating) 616 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */ 617 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight))) 618 configure(c); 619 if (ISVISIBLE(c)) 620 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 621 } else 622 configure(c); 623 } else { 624 wc.x = ev->x; 625 wc.y = ev->y; 626 wc.width = ev->width; 627 wc.height = ev->height; 628 wc.border_width = ev->border_width; 629 wc.sibling = ev->above; 630 wc.stack_mode = ev->detail; 631 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); 632 } 633 XSync(dpy, False); 634 } 635 636 Monitor * 637 createmon(void) 638 { 639 Monitor *m; 640 641 m = ecalloc(1, sizeof(Monitor)); 642 m->tagset[0] = m->tagset[1] = 1; 643 m->mfact = mfact; 644 m->nmaster = nmaster; 645 m->showbar = showbar; 646 m->topbar = topbar; 647 m->gappih = gappih; 648 m->gappiv = gappiv; 649 m->gappoh = gappoh; 650 m->gappov = gappov; 651 m->lt[0] = &layouts[0]; 652 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 653 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); 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 Client *c; 713 714 if (!m->showbar) 715 return; 716 717 /* draw status first so it can be overdrawn by tags later */ 718 if (m == selmon) { /* status is only drawn on selected monitor */ 719 drw_setscheme(drw, scheme[SchemeNorm]); 720 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 721 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0); 722 } 723 724 for (c = m->clients; c; c = c->next) { 725 occ |= c->tags; 726 if (c->isurgent) 727 urg |= c->tags; 728 } 729 x = 0; 730 for (i = 0; i < LENGTH(tags); i++) { 731 w = TEXTW(tags[i]); 732 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); 733 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 734 if (occ & 1 << i) 735 drw_rect(drw, x + boxs, boxs, boxw, boxw, 736 m == selmon && selmon->sel && selmon->sel->tags & 1 << i, 737 urg & 1 << i); 738 x += w; 739 } 740 w = TEXTW(m->ltsymbol); 741 drw_setscheme(drw, scheme[SchemeNorm]); 742 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 743 744 if ((w = m->ww - tw - x) > bh) { 745 if (m->sel) { 746 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); 747 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 748 if (m->sel->isfloating) 749 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 750 } else { 751 drw_setscheme(drw, scheme[SchemeNorm]); 752 drw_rect(drw, x, 0, w, bh, 1, 1); 753 } 754 } 755 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 756 } 757 758 void 759 drawbars(void) 760 { 761 Monitor *m; 762 763 for (m = mons; m; m = m->next) 764 drawbar(m); 765 } 766 767 void 768 enternotify(XEvent *e) 769 { 770 Client *c; 771 Monitor *m; 772 XCrossingEvent *ev = &e->xcrossing; 773 774 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 775 return; 776 c = wintoclient(ev->window); 777 m = c ? c->mon : wintomon(ev->window); 778 if (m != selmon) { 779 unfocus(selmon->sel, 1); 780 selmon = m; 781 } else if (!c || c == selmon->sel) 782 return; 783 focus(c); 784 } 785 786 void 787 expose(XEvent *e) 788 { 789 Monitor *m; 790 XExposeEvent *ev = &e->xexpose; 791 792 if (ev->count == 0 && (m = wintomon(ev->window))) 793 drawbar(m); 794 } 795 796 void 797 focus(Client *c) 798 { 799 if (!c || !ISVISIBLE(c)) 800 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 801 if (selmon->sel && selmon->sel != c) 802 unfocus(selmon->sel, 0); 803 if (c) { 804 if (c->mon != selmon) 805 selmon = c->mon; 806 if (c->isurgent) 807 seturgent(c, 0); 808 detachstack(c); 809 attachstack(c); 810 grabbuttons(c, 1); 811 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 812 setfocus(c); 813 } else { 814 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 815 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 816 } 817 selmon->sel = c; 818 drawbars(); 819 } 820 821 /* there are some broken focus acquiring clients needing extra handling */ 822 void 823 focusin(XEvent *e) 824 { 825 XFocusChangeEvent *ev = &e->xfocus; 826 827 if (selmon->sel && ev->window != selmon->sel->win) 828 setfocus(selmon->sel); 829 } 830 831 void 832 focusmon(const Arg *arg) 833 { 834 Monitor *m; 835 836 if (!mons->next) 837 return; 838 if ((m = dirtomon(arg->i)) == selmon) 839 return; 840 unfocus(selmon->sel, 0); 841 selmon = m; 842 focus(NULL); 843 } 844 845 void 846 focusstack(const Arg *arg) 847 { 848 Client *c = NULL, *i; 849 850 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen)) 851 return; 852 if (arg->i > 0) { 853 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 854 if (!c) 855 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 856 } else { 857 for (i = selmon->clients; i != selmon->sel; i = i->next) 858 if (ISVISIBLE(i)) 859 c = i; 860 if (!c) 861 for (; i; i = i->next) 862 if (ISVISIBLE(i)) 863 c = i; 864 } 865 if (c) { 866 focus(c); 867 restack(selmon); 868 } 869 } 870 871 Atom 872 getatomprop(Client *c, Atom prop) 873 { 874 int di; 875 unsigned long dl; 876 unsigned char *p = NULL; 877 Atom da, atom = None; 878 879 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 880 &da, &di, &dl, &dl, &p) == Success && p) { 881 atom = *(Atom *)p; 882 XFree(p); 883 } 884 return atom; 885 } 886 887 int 888 getrootptr(int *x, int *y) 889 { 890 int di; 891 unsigned int dui; 892 Window dummy; 893 894 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui); 895 } 896 897 long 898 getstate(Window w) 899 { 900 int format; 901 long result = -1; 902 unsigned char *p = NULL; 903 unsigned long n, extra; 904 Atom real; 905 906 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], 907 &real, &format, &n, &extra, (unsigned char **)&p) != Success) 908 return -1; 909 if (n != 0) 910 result = *p; 911 XFree(p); 912 return result; 913 } 914 915 int 916 gettextprop(Window w, Atom atom, char *text, unsigned int size) 917 { 918 char **list = NULL; 919 int n; 920 XTextProperty name; 921 922 if (!text || size == 0) 923 return 0; 924 text[0] = '\0'; 925 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems) 926 return 0; 927 if (name.encoding == XA_STRING) { 928 strncpy(text, (char *)name.value, size - 1); 929 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) { 930 strncpy(text, *list, size - 1); 931 XFreeStringList(list); 932 } 933 text[size - 1] = '\0'; 934 XFree(name.value); 935 return 1; 936 } 937 938 void 939 grabbuttons(Client *c, int focused) 940 { 941 updatenumlockmask(); 942 { 943 unsigned int i, j; 944 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 945 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 946 if (!focused) 947 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, 948 BUTTONMASK, GrabModeSync, GrabModeSync, None, None); 949 for (i = 0; i < LENGTH(buttons); i++) 950 if (buttons[i].click == ClkClientWin) 951 for (j = 0; j < LENGTH(modifiers); j++) 952 XGrabButton(dpy, buttons[i].button, 953 buttons[i].mask | modifiers[j], 954 c->win, False, BUTTONMASK, 955 GrabModeAsync, GrabModeSync, None, None); 956 } 957 } 958 959 void 960 grabkeys(void) 961 { 962 updatenumlockmask(); 963 { 964 unsigned int i, j, k; 965 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 966 int start, end, skip; 967 KeySym *syms; 968 969 XUngrabKey(dpy, AnyKey, AnyModifier, root); 970 XDisplayKeycodes(dpy, &start, &end); 971 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip); 972 if (!syms) 973 return; 974 for (k = start; k <= end; k++) 975 for (i = 0; i < LENGTH(keys); i++) 976 /* skip modifier codes, we do that ourselves */ 977 if (keys[i].keysym == syms[(k - start) * skip]) 978 for (j = 0; j < LENGTH(modifiers); j++) 979 XGrabKey(dpy, k, 980 keys[i].mod | modifiers[j], 981 root, True, 982 GrabModeAsync, GrabModeAsync); 983 XFree(syms); 984 } 985 } 986 987 void 988 incnmaster(const Arg *arg) 989 { 990 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); 991 arrange(selmon); 992 } 993 994 #ifdef XINERAMA 995 static int 996 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) 997 { 998 while (n--) 999 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org 1000 && unique[n].width == info->width && unique[n].height == info->height) 1001 return 0; 1002 return 1; 1003 } 1004 #endif /* XINERAMA */ 1005 1006 void 1007 keypress(XEvent *e) 1008 { 1009 unsigned int i; 1010 KeySym keysym; 1011 XKeyEvent *ev; 1012 1013 ev = &e->xkey; 1014 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); 1015 for (i = 0; i < LENGTH(keys); i++) 1016 if (keysym == keys[i].keysym 1017 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) 1018 && keys[i].func) 1019 keys[i].func(&(keys[i].arg)); 1020 } 1021 1022 void 1023 killclient(const Arg *arg) 1024 { 1025 if (!selmon->sel) 1026 return; 1027 if (!sendevent(selmon->sel, wmatom[WMDelete])) { 1028 XGrabServer(dpy); 1029 XSetErrorHandler(xerrordummy); 1030 XSetCloseDownMode(dpy, DestroyAll); 1031 XKillClient(dpy, selmon->sel->win); 1032 XSync(dpy, False); 1033 XSetErrorHandler(xerror); 1034 XUngrabServer(dpy); 1035 } 1036 } 1037 1038 void 1039 manage(Window w, XWindowAttributes *wa) 1040 { 1041 Client *c, *t = NULL; 1042 Window trans = None; 1043 XWindowChanges wc; 1044 1045 c = ecalloc(1, sizeof(Client)); 1046 c->win = w; 1047 /* geometry */ 1048 c->x = c->oldx = wa->x; 1049 c->y = c->oldy = wa->y; 1050 c->w = c->oldw = wa->width; 1051 c->h = c->oldh = wa->height; 1052 c->oldbw = wa->border_width; 1053 1054 updatetitle(c); 1055 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { 1056 c->mon = t->mon; 1057 c->tags = t->tags; 1058 } else { 1059 c->mon = selmon; 1060 applyrules(c); 1061 } 1062 1063 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww) 1064 c->x = c->mon->wx + c->mon->ww - WIDTH(c); 1065 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh) 1066 c->y = c->mon->wy + c->mon->wh - HEIGHT(c); 1067 c->x = MAX(c->x, c->mon->wx); 1068 c->y = MAX(c->y, c->mon->wy); 1069 c->bw = borderpx; 1070 1071 wc.border_width = c->bw; 1072 XConfigureWindow(dpy, w, CWBorderWidth, &wc); 1073 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); 1074 configure(c); /* propagates border_width, if size doesn't change */ 1075 updatewindowtype(c); 1076 updatesizehints(c); 1077 updatewmhints(c); 1078 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); 1079 grabbuttons(c, 0); 1080 if (!c->isfloating) 1081 c->isfloating = c->oldstate = trans != None || c->isfixed; 1082 if (c->isfloating) 1083 XRaiseWindow(dpy, c->win); 1084 attach(c); 1085 attachstack(c); 1086 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend, 1087 (unsigned char *) &(c->win), 1); 1088 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */ 1089 setclientstate(c, NormalState); 1090 if (c->mon == selmon) 1091 unfocus(selmon->sel, 0); 1092 c->mon->sel = c; 1093 arrange(c->mon); 1094 XMapWindow(dpy, c->win); 1095 focus(NULL); 1096 } 1097 1098 void 1099 mappingnotify(XEvent *e) 1100 { 1101 XMappingEvent *ev = &e->xmapping; 1102 1103 XRefreshKeyboardMapping(ev); 1104 if (ev->request == MappingKeyboard) 1105 grabkeys(); 1106 } 1107 1108 void 1109 maprequest(XEvent *e) 1110 { 1111 static XWindowAttributes wa; 1112 XMapRequestEvent *ev = &e->xmaprequest; 1113 1114 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect) 1115 return; 1116 if (!wintoclient(ev->window)) 1117 manage(ev->window, &wa); 1118 } 1119 1120 void 1121 monocle(Monitor *m) 1122 { 1123 unsigned int n = 0; 1124 Client *c; 1125 1126 for (c = m->clients; c; c = c->next) 1127 if (ISVISIBLE(c)) 1128 n++; 1129 if (n > 0) /* override layout symbol */ 1130 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n); 1131 for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) 1132 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0); 1133 } 1134 1135 void 1136 motionnotify(XEvent *e) 1137 { 1138 static Monitor *mon = NULL; 1139 Monitor *m; 1140 XMotionEvent *ev = &e->xmotion; 1141 1142 if (ev->window != root) 1143 return; 1144 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) { 1145 unfocus(selmon->sel, 1); 1146 selmon = m; 1147 focus(NULL); 1148 } 1149 mon = m; 1150 } 1151 1152 void 1153 movemouse(const Arg *arg) 1154 { 1155 int x, y, ocx, ocy, nx, ny; 1156 Client *c; 1157 Monitor *m; 1158 XEvent ev; 1159 Time lasttime = 0; 1160 1161 if (!(c = selmon->sel)) 1162 return; 1163 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ 1164 return; 1165 restack(selmon); 1166 ocx = c->x; 1167 ocy = c->y; 1168 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1169 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) 1170 return; 1171 if (!getrootptr(&x, &y)) 1172 return; 1173 do { 1174 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1175 switch(ev.type) { 1176 case ConfigureRequest: 1177 case Expose: 1178 case MapRequest: 1179 handler[ev.type](&ev); 1180 break; 1181 case MotionNotify: 1182 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1183 continue; 1184 lasttime = ev.xmotion.time; 1185 1186 nx = ocx + (ev.xmotion.x - x); 1187 ny = ocy + (ev.xmotion.y - y); 1188 if (abs(selmon->wx - nx) < snap) 1189 nx = selmon->wx; 1190 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) 1191 nx = selmon->wx + selmon->ww - WIDTH(c); 1192 if (abs(selmon->wy - ny) < snap) 1193 ny = selmon->wy; 1194 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) 1195 ny = selmon->wy + selmon->wh - HEIGHT(c); 1196 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1197 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) 1198 togglefloating(NULL); 1199 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1200 resize(c, nx, ny, c->w, c->h, 1); 1201 break; 1202 } 1203 } while (ev.type != ButtonRelease); 1204 XUngrabPointer(dpy, CurrentTime); 1205 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1206 sendmon(c, m); 1207 selmon = m; 1208 focus(NULL); 1209 } 1210 } 1211 1212 Client * 1213 nexttiled(Client *c) 1214 { 1215 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next); 1216 return c; 1217 } 1218 1219 void 1220 pop(Client *c) 1221 { 1222 detach(c); 1223 attach(c); 1224 focus(c); 1225 arrange(c->mon); 1226 } 1227 1228 void 1229 propertynotify(XEvent *e) 1230 { 1231 Client *c; 1232 Window trans; 1233 XPropertyEvent *ev = &e->xproperty; 1234 1235 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1236 updatestatus(); 1237 else if (ev->state == PropertyDelete) 1238 return; /* ignore */ 1239 else if ((c = wintoclient(ev->window))) { 1240 switch(ev->atom) { 1241 default: break; 1242 case XA_WM_TRANSIENT_FOR: 1243 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1244 (c->isfloating = (wintoclient(trans)) != NULL)) 1245 arrange(c->mon); 1246 break; 1247 case XA_WM_NORMAL_HINTS: 1248 c->hintsvalid = 0; 1249 break; 1250 case XA_WM_HINTS: 1251 updatewmhints(c); 1252 drawbars(); 1253 break; 1254 } 1255 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1256 updatetitle(c); 1257 if (c == c->mon->sel) 1258 drawbar(c->mon); 1259 } 1260 if (ev->atom == netatom[NetWMWindowType]) 1261 updatewindowtype(c); 1262 } 1263 } 1264 1265 void 1266 quit(const Arg *arg) 1267 { 1268 running = 0; 1269 } 1270 1271 Monitor * 1272 recttomon(int x, int y, int w, int h) 1273 { 1274 Monitor *m, *r = selmon; 1275 int a, area = 0; 1276 1277 for (m = mons; m; m = m->next) 1278 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1279 area = a; 1280 r = m; 1281 } 1282 return r; 1283 } 1284 1285 void 1286 resize(Client *c, int x, int y, int w, int h, int interact) 1287 { 1288 if (applysizehints(c, &x, &y, &w, &h, interact)) 1289 resizeclient(c, x, y, w, h); 1290 } 1291 1292 void 1293 resizeclient(Client *c, int x, int y, int w, int h) 1294 { 1295 XWindowChanges wc; 1296 1297 c->oldx = c->x; c->x = wc.x = x; 1298 c->oldy = c->y; c->y = wc.y = y; 1299 c->oldw = c->w; c->w = wc.width = w; 1300 c->oldh = c->h; c->h = wc.height = h; 1301 wc.border_width = c->bw; 1302 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1303 configure(c); 1304 XSync(dpy, False); 1305 } 1306 1307 void 1308 resizemouse(const Arg *arg) 1309 { 1310 int ocx, ocy, nw, nh; 1311 Client *c; 1312 Monitor *m; 1313 XEvent ev; 1314 Time lasttime = 0; 1315 1316 if (!(c = selmon->sel)) 1317 return; 1318 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1319 return; 1320 restack(selmon); 1321 ocx = c->x; 1322 ocy = c->y; 1323 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1324 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1325 return; 1326 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1327 do { 1328 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1329 switch(ev.type) { 1330 case ConfigureRequest: 1331 case Expose: 1332 case MapRequest: 1333 handler[ev.type](&ev); 1334 break; 1335 case MotionNotify: 1336 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1337 continue; 1338 lasttime = ev.xmotion.time; 1339 1340 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1341 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1342 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1343 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1344 { 1345 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1346 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1347 togglefloating(NULL); 1348 } 1349 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1350 resize(c, c->x, c->y, nw, nh, 1); 1351 break; 1352 } 1353 } while (ev.type != ButtonRelease); 1354 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1355 XUngrabPointer(dpy, CurrentTime); 1356 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1357 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1358 sendmon(c, m); 1359 selmon = m; 1360 focus(NULL); 1361 } 1362 } 1363 1364 void 1365 restack(Monitor *m) 1366 { 1367 Client *c; 1368 XEvent ev; 1369 XWindowChanges wc; 1370 1371 drawbar(m); 1372 if (!m->sel) 1373 return; 1374 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1375 XRaiseWindow(dpy, m->sel->win); 1376 if (m->lt[m->sellt]->arrange) { 1377 wc.stack_mode = Below; 1378 wc.sibling = m->barwin; 1379 for (c = m->stack; c; c = c->snext) 1380 if (!c->isfloating && ISVISIBLE(c)) { 1381 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1382 wc.sibling = c->win; 1383 } 1384 } 1385 XSync(dpy, False); 1386 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1387 } 1388 1389 void 1390 run(void) 1391 { 1392 XEvent ev; 1393 /* main event loop */ 1394 XSync(dpy, False); 1395 while (running && !XNextEvent(dpy, &ev)) 1396 if (handler[ev.type]) 1397 handler[ev.type](&ev); /* call handler */ 1398 } 1399 1400 void 1401 scan(void) 1402 { 1403 unsigned int i, num; 1404 Window d1, d2, *wins = NULL; 1405 XWindowAttributes wa; 1406 1407 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1408 for (i = 0; i < num; i++) { 1409 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1410 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1411 continue; 1412 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1413 manage(wins[i], &wa); 1414 } 1415 for (i = 0; i < num; i++) { /* now the transients */ 1416 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1417 continue; 1418 if (XGetTransientForHint(dpy, wins[i], &d1) 1419 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1420 manage(wins[i], &wa); 1421 } 1422 if (wins) 1423 XFree(wins); 1424 } 1425 } 1426 1427 void 1428 sendmon(Client *c, Monitor *m) 1429 { 1430 if (c->mon == m) 1431 return; 1432 unfocus(c, 1); 1433 detach(c); 1434 detachstack(c); 1435 c->mon = m; 1436 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1437 attach(c); 1438 attachstack(c); 1439 focus(NULL); 1440 arrange(NULL); 1441 } 1442 1443 void 1444 setclientstate(Client *c, long state) 1445 { 1446 long data[] = { state, None }; 1447 1448 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1449 PropModeReplace, (unsigned char *)data, 2); 1450 } 1451 1452 int 1453 sendevent(Client *c, Atom proto) 1454 { 1455 int n; 1456 Atom *protocols; 1457 int exists = 0; 1458 XEvent ev; 1459 1460 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1461 while (!exists && n--) 1462 exists = protocols[n] == proto; 1463 XFree(protocols); 1464 } 1465 if (exists) { 1466 ev.type = ClientMessage; 1467 ev.xclient.window = c->win; 1468 ev.xclient.message_type = wmatom[WMProtocols]; 1469 ev.xclient.format = 32; 1470 ev.xclient.data.l[0] = proto; 1471 ev.xclient.data.l[1] = CurrentTime; 1472 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1473 } 1474 return exists; 1475 } 1476 1477 void 1478 setfocus(Client *c) 1479 { 1480 if (!c->neverfocus) { 1481 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1482 XChangeProperty(dpy, root, netatom[NetActiveWindow], 1483 XA_WINDOW, 32, PropModeReplace, 1484 (unsigned char *) &(c->win), 1); 1485 } 1486 sendevent(c, wmatom[WMTakeFocus]); 1487 } 1488 1489 void 1490 setfullscreen(Client *c, int fullscreen) 1491 { 1492 if (fullscreen && !c->isfullscreen) { 1493 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1494 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1495 c->isfullscreen = 1; 1496 c->oldstate = c->isfloating; 1497 c->oldbw = c->bw; 1498 c->bw = 0; 1499 c->isfloating = 1; 1500 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1501 XRaiseWindow(dpy, c->win); 1502 } else if (!fullscreen && c->isfullscreen){ 1503 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1504 PropModeReplace, (unsigned char*)0, 0); 1505 c->isfullscreen = 0; 1506 c->isfloating = c->oldstate; 1507 c->bw = c->oldbw; 1508 c->x = c->oldx; 1509 c->y = c->oldy; 1510 c->w = c->oldw; 1511 c->h = c->oldh; 1512 resizeclient(c, c->x, c->y, c->w, c->h); 1513 arrange(c->mon); 1514 } 1515 } 1516 1517 void 1518 setlayout(const Arg *arg) 1519 { 1520 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1521 selmon->sellt ^= 1; 1522 if (arg && arg->v) 1523 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1524 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol); 1525 if (selmon->sel) 1526 arrange(selmon); 1527 else 1528 drawbar(selmon); 1529 } 1530 1531 /* arg > 1.0 will set mfact absolutely */ 1532 void 1533 setmfact(const Arg *arg) 1534 { 1535 float f; 1536 1537 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1538 return; 1539 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1540 if (f < 0.05 || f > 0.95) 1541 return; 1542 selmon->mfact = f; 1543 arrange(selmon); 1544 } 1545 1546 void 1547 setup(void) 1548 { 1549 int i; 1550 XSetWindowAttributes wa; 1551 Atom utf8string; 1552 struct sigaction sa; 1553 1554 /* do not transform children into zombies when they terminate */ 1555 sigemptyset(&sa.sa_mask); 1556 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART; 1557 sa.sa_handler = SIG_IGN; 1558 sigaction(SIGCHLD, &sa, NULL); 1559 1560 /* clean up any zombies (inherited from .xinitrc etc) immediately */ 1561 while (waitpid(-1, NULL, WNOHANG) > 0); 1562 1563 /* init screen */ 1564 screen = DefaultScreen(dpy); 1565 sw = DisplayWidth(dpy, screen); 1566 sh = DisplayHeight(dpy, screen); 1567 root = RootWindow(dpy, screen); 1568 drw = drw_create(dpy, screen, root, sw, sh); 1569 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1570 die("no fonts could be loaded."); 1571 lrpad = drw->fonts->h; 1572 bh = drw->fonts->h + 2; 1573 updategeom(); 1574 /* init atoms */ 1575 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1576 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1577 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1578 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1579 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1580 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1581 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1582 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1583 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1584 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1585 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1586 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1587 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1588 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1589 /* init cursors */ 1590 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1591 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1592 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1593 /* init appearance */ 1594 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1595 for (i = 0; i < LENGTH(colors); i++) 1596 scheme[i] = drw_scm_create(drw, colors[i], 3); 1597 /* init bars */ 1598 updatebars(); 1599 updatestatus(); 1600 /* supporting window for NetWMCheck */ 1601 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1602 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1603 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1604 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1605 PropModeReplace, (unsigned char *) "dwm", 3); 1606 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1607 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1608 /* EWMH support per view */ 1609 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1610 PropModeReplace, (unsigned char *) netatom, NetLast); 1611 XDeleteProperty(dpy, root, netatom[NetClientList]); 1612 /* select events */ 1613 wa.cursor = cursor[CurNormal]->cursor; 1614 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1615 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1616 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1617 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1618 XSelectInput(dpy, root, wa.event_mask); 1619 grabkeys(); 1620 focus(NULL); 1621 } 1622 1623 void 1624 seturgent(Client *c, int urg) 1625 { 1626 XWMHints *wmh; 1627 1628 c->isurgent = urg; 1629 if (!(wmh = XGetWMHints(dpy, c->win))) 1630 return; 1631 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1632 XSetWMHints(dpy, c->win, wmh); 1633 XFree(wmh); 1634 } 1635 1636 void 1637 showhide(Client *c) 1638 { 1639 if (!c) 1640 return; 1641 if (ISVISIBLE(c)) { 1642 /* show clients top down */ 1643 XMoveWindow(dpy, c->win, c->x, c->y); 1644 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen) 1645 resize(c, c->x, c->y, c->w, c->h, 0); 1646 showhide(c->snext); 1647 } else { 1648 /* hide clients bottom up */ 1649 showhide(c->snext); 1650 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1651 } 1652 } 1653 1654 void 1655 spawn(const Arg *arg) 1656 { 1657 struct sigaction sa; 1658 1659 if (arg->v == dmenucmd) 1660 dmenumon[0] = '0' + selmon->num; 1661 if (fork() == 0) { 1662 if (dpy) 1663 close(ConnectionNumber(dpy)); 1664 setsid(); 1665 1666 sigemptyset(&sa.sa_mask); 1667 sa.sa_flags = 0; 1668 sa.sa_handler = SIG_DFL; 1669 sigaction(SIGCHLD, &sa, NULL); 1670 1671 execvp(((char **)arg->v)[0], (char **)arg->v); 1672 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]); 1673 } 1674 } 1675 1676 void 1677 tag(const Arg *arg) 1678 { 1679 if (selmon->sel && arg->ui & TAGMASK) { 1680 selmon->sel->tags = arg->ui & TAGMASK; 1681 focus(NULL); 1682 arrange(selmon); 1683 } 1684 } 1685 1686 void 1687 tagmon(const Arg *arg) 1688 { 1689 if (!selmon->sel || !mons->next) 1690 return; 1691 sendmon(selmon->sel, dirtomon(arg->i)); 1692 } 1693 1694 void 1695 togglebar(const Arg *arg) 1696 { 1697 selmon->showbar = !selmon->showbar; 1698 updatebarpos(selmon); 1699 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1700 arrange(selmon); 1701 } 1702 1703 void 1704 togglefloating(const Arg *arg) 1705 { 1706 if (!selmon->sel) 1707 return; 1708 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */ 1709 return; 1710 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed; 1711 if (selmon->sel->isfloating) 1712 resize(selmon->sel, selmon->sel->x, selmon->sel->y, 1713 selmon->sel->w, selmon->sel->h, 0); 1714 arrange(selmon); 1715 } 1716 1717 void 1718 toggletag(const Arg *arg) 1719 { 1720 unsigned int newtags; 1721 1722 if (!selmon->sel) 1723 return; 1724 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1725 if (newtags) { 1726 selmon->sel->tags = newtags; 1727 focus(NULL); 1728 arrange(selmon); 1729 } 1730 } 1731 1732 void 1733 toggleview(const Arg *arg) 1734 { 1735 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1736 1737 if (newtagset) { 1738 selmon->tagset[selmon->seltags] = newtagset; 1739 focus(NULL); 1740 arrange(selmon); 1741 } 1742 } 1743 1744 void 1745 unfocus(Client *c, int setfocus) 1746 { 1747 if (!c) 1748 return; 1749 grabbuttons(c, 0); 1750 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1751 if (setfocus) { 1752 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1753 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1754 } 1755 } 1756 1757 void 1758 unmanage(Client *c, int destroyed) 1759 { 1760 Monitor *m = c->mon; 1761 XWindowChanges wc; 1762 1763 detach(c); 1764 detachstack(c); 1765 if (!destroyed) { 1766 wc.border_width = c->oldbw; 1767 XGrabServer(dpy); /* avoid race conditions */ 1768 XSetErrorHandler(xerrordummy); 1769 XSelectInput(dpy, c->win, NoEventMask); 1770 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1771 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1772 setclientstate(c, WithdrawnState); 1773 XSync(dpy, False); 1774 XSetErrorHandler(xerror); 1775 XUngrabServer(dpy); 1776 } 1777 free(c); 1778 focus(NULL); 1779 updateclientlist(); 1780 arrange(m); 1781 } 1782 1783 void 1784 unmapnotify(XEvent *e) 1785 { 1786 Client *c; 1787 XUnmapEvent *ev = &e->xunmap; 1788 1789 if ((c = wintoclient(ev->window))) { 1790 if (ev->send_event) 1791 setclientstate(c, WithdrawnState); 1792 else 1793 unmanage(c, 0); 1794 } 1795 } 1796 1797 void 1798 updatebars(void) 1799 { 1800 Monitor *m; 1801 XSetWindowAttributes wa = { 1802 .override_redirect = True, 1803 .background_pixmap = ParentRelative, 1804 .event_mask = ButtonPressMask|ExposureMask 1805 }; 1806 XClassHint ch = {"dwm", "dwm"}; 1807 for (m = mons; m; m = m->next) { 1808 if (m->barwin) 1809 continue; 1810 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1811 CopyFromParent, DefaultVisual(dpy, screen), 1812 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1813 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1814 XMapRaised(dpy, m->barwin); 1815 XSetClassHint(dpy, m->barwin, &ch); 1816 } 1817 } 1818 1819 void 1820 updatebarpos(Monitor *m) 1821 { 1822 m->wy = m->my; 1823 m->wh = m->mh; 1824 if (m->showbar) { 1825 m->wh -= bh; 1826 m->by = m->topbar ? m->wy : m->wy + m->wh; 1827 m->wy = m->topbar ? m->wy + bh : m->wy; 1828 } else 1829 m->by = -bh; 1830 } 1831 1832 void 1833 updateclientlist(void) 1834 { 1835 Client *c; 1836 Monitor *m; 1837 1838 XDeleteProperty(dpy, root, netatom[NetClientList]); 1839 for (m = mons; m; m = m->next) 1840 for (c = m->clients; c; c = c->next) 1841 XChangeProperty(dpy, root, netatom[NetClientList], 1842 XA_WINDOW, 32, PropModeAppend, 1843 (unsigned char *) &(c->win), 1); 1844 } 1845 1846 int 1847 updategeom(void) 1848 { 1849 int dirty = 0; 1850 1851 #ifdef XINERAMA 1852 if (XineramaIsActive(dpy)) { 1853 int i, j, n, nn; 1854 Client *c; 1855 Monitor *m; 1856 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1857 XineramaScreenInfo *unique = NULL; 1858 1859 for (n = 0, m = mons; m; m = m->next, n++); 1860 /* only consider unique geometries as separate screens */ 1861 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1862 for (i = 0, j = 0; i < nn; i++) 1863 if (isuniquegeom(unique, j, &info[i])) 1864 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1865 XFree(info); 1866 nn = j; 1867 1868 /* new monitors if nn > n */ 1869 for (i = n; i < nn; i++) { 1870 for (m = mons; m && m->next; m = m->next); 1871 if (m) 1872 m->next = createmon(); 1873 else 1874 mons = createmon(); 1875 } 1876 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 1877 if (i >= n 1878 || unique[i].x_org != m->mx || unique[i].y_org != m->my 1879 || unique[i].width != m->mw || unique[i].height != m->mh) 1880 { 1881 dirty = 1; 1882 m->num = i; 1883 m->mx = m->wx = unique[i].x_org; 1884 m->my = m->wy = unique[i].y_org; 1885 m->mw = m->ww = unique[i].width; 1886 m->mh = m->wh = unique[i].height; 1887 updatebarpos(m); 1888 } 1889 /* removed monitors if n > nn */ 1890 for (i = nn; i < n; i++) { 1891 for (m = mons; m && m->next; m = m->next); 1892 while ((c = m->clients)) { 1893 dirty = 1; 1894 m->clients = c->next; 1895 detachstack(c); 1896 c->mon = mons; 1897 attach(c); 1898 attachstack(c); 1899 } 1900 if (m == selmon) 1901 selmon = mons; 1902 cleanupmon(m); 1903 } 1904 free(unique); 1905 } else 1906 #endif /* XINERAMA */ 1907 { /* default monitor setup */ 1908 if (!mons) 1909 mons = createmon(); 1910 if (mons->mw != sw || mons->mh != sh) { 1911 dirty = 1; 1912 mons->mw = mons->ww = sw; 1913 mons->mh = mons->wh = sh; 1914 updatebarpos(mons); 1915 } 1916 } 1917 if (dirty) { 1918 selmon = mons; 1919 selmon = wintomon(root); 1920 } 1921 return dirty; 1922 } 1923 1924 void 1925 updatenumlockmask(void) 1926 { 1927 unsigned int i, j; 1928 XModifierKeymap *modmap; 1929 1930 numlockmask = 0; 1931 modmap = XGetModifierMapping(dpy); 1932 for (i = 0; i < 8; i++) 1933 for (j = 0; j < modmap->max_keypermod; j++) 1934 if (modmap->modifiermap[i * modmap->max_keypermod + j] 1935 == XKeysymToKeycode(dpy, XK_Num_Lock)) 1936 numlockmask = (1 << i); 1937 XFreeModifiermap(modmap); 1938 } 1939 1940 void 1941 updatesizehints(Client *c) 1942 { 1943 long msize; 1944 XSizeHints size; 1945 1946 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 1947 /* size is uninitialized, ensure that size.flags aren't used */ 1948 size.flags = PSize; 1949 if (size.flags & PBaseSize) { 1950 c->basew = size.base_width; 1951 c->baseh = size.base_height; 1952 } else if (size.flags & PMinSize) { 1953 c->basew = size.min_width; 1954 c->baseh = size.min_height; 1955 } else 1956 c->basew = c->baseh = 0; 1957 if (size.flags & PResizeInc) { 1958 c->incw = size.width_inc; 1959 c->inch = size.height_inc; 1960 } else 1961 c->incw = c->inch = 0; 1962 if (size.flags & PMaxSize) { 1963 c->maxw = size.max_width; 1964 c->maxh = size.max_height; 1965 } else 1966 c->maxw = c->maxh = 0; 1967 if (size.flags & PMinSize) { 1968 c->minw = size.min_width; 1969 c->minh = size.min_height; 1970 } else if (size.flags & PBaseSize) { 1971 c->minw = size.base_width; 1972 c->minh = size.base_height; 1973 } else 1974 c->minw = c->minh = 0; 1975 if (size.flags & PAspect) { 1976 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 1977 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 1978 } else 1979 c->maxa = c->mina = 0.0; 1980 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 1981 c->hintsvalid = 1; 1982 } 1983 1984 void 1985 updatestatus(void) 1986 { 1987 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 1988 strcpy(stext, "dwm-"VERSION); 1989 drawbar(selmon); 1990 } 1991 1992 void 1993 updatetitle(Client *c) 1994 { 1995 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 1996 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 1997 if (c->name[0] == '\0') /* hack to mark broken clients */ 1998 strcpy(c->name, broken); 1999 } 2000 2001 void 2002 updatewindowtype(Client *c) 2003 { 2004 Atom state = getatomprop(c, netatom[NetWMState]); 2005 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2006 2007 if (state == netatom[NetWMFullscreen]) 2008 setfullscreen(c, 1); 2009 if (wtype == netatom[NetWMWindowTypeDialog]) 2010 c->isfloating = 1; 2011 } 2012 2013 void 2014 updatewmhints(Client *c) 2015 { 2016 XWMHints *wmh; 2017 2018 if ((wmh = XGetWMHints(dpy, c->win))) { 2019 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2020 wmh->flags &= ~XUrgencyHint; 2021 XSetWMHints(dpy, c->win, wmh); 2022 } else 2023 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2024 if (wmh->flags & InputHint) 2025 c->neverfocus = !wmh->input; 2026 else 2027 c->neverfocus = 0; 2028 XFree(wmh); 2029 } 2030 } 2031 2032 void 2033 view(const Arg *arg) 2034 { 2035 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2036 return; 2037 selmon->seltags ^= 1; /* toggle sel tagset */ 2038 if (arg->ui & TAGMASK) 2039 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2040 focus(NULL); 2041 arrange(selmon); 2042 } 2043 2044 Client * 2045 wintoclient(Window w) 2046 { 2047 Client *c; 2048 Monitor *m; 2049 2050 for (m = mons; m; m = m->next) 2051 for (c = m->clients; c; c = c->next) 2052 if (c->win == w) 2053 return c; 2054 return NULL; 2055 } 2056 2057 Monitor * 2058 wintomon(Window w) 2059 { 2060 int x, y; 2061 Client *c; 2062 Monitor *m; 2063 2064 if (w == root && getrootptr(&x, &y)) 2065 return recttomon(x, y, 1, 1); 2066 for (m = mons; m; m = m->next) 2067 if (w == m->barwin) 2068 return m; 2069 if ((c = wintoclient(w))) 2070 return c->mon; 2071 return selmon; 2072 } 2073 2074 /* There's no way to check accesses to destroyed windows, thus those cases are 2075 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2076 * default error handler, which may call exit. */ 2077 int 2078 xerror(Display *dpy, XErrorEvent *ee) 2079 { 2080 if (ee->error_code == BadWindow 2081 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2082 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2083 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2084 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2085 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2086 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2087 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2088 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2089 return 0; 2090 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2091 ee->request_code, ee->error_code); 2092 return xerrorxlib(dpy, ee); /* may call exit */ 2093 } 2094 2095 int 2096 xerrordummy(Display *dpy, XErrorEvent *ee) 2097 { 2098 return 0; 2099 } 2100 2101 /* Startup Error handler to check if another window manager 2102 * is already running. */ 2103 int 2104 xerrorstart(Display *dpy, XErrorEvent *ee) 2105 { 2106 die("dwm: another window manager is already running"); 2107 return -1; 2108 } 2109 2110 void 2111 zoom(const Arg *arg) 2112 { 2113 Client *c = selmon->sel; 2114 2115 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating) 2116 return; 2117 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next))) 2118 return; 2119 pop(c); 2120 } 2121 2122 int 2123 main(int argc, char *argv[]) 2124 { 2125 if (argc == 2 && !strcmp("-v", argv[1])) 2126 die("dwm-"VERSION); 2127 else if (argc != 1) 2128 die("usage: dwm [-v]"); 2129 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2130 fputs("warning: no locale support\n", stderr); 2131 if (!(dpy = XOpenDisplay(NULL))) 2132 die("dwm: cannot open display"); 2133 checkotherwm(); 2134 setup(); 2135 #ifdef __OpenBSD__ 2136 if (pledge("stdio rpath proc exec", NULL) == -1) 2137 die("pledge"); 2138 #endif /* __OpenBSD__ */ 2139 scan(); 2140 run(); 2141 cleanup(); 2142 XCloseDisplay(dpy); 2143 return EXIT_SUCCESS; 2144 }