dwm.c (53956B)
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 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 *c); 189 static int popcnt(unsigned int x); 190 static void propertynotify(XEvent *e); 191 static void quit(const Arg *arg); 192 static Monitor *recttomon(int x, int y, int w, int h); 193 static void resize(Client *c, int x, int y, int w, int h, int interact); 194 static void resizeclient(Client *c, int x, int y, int w, int h); 195 static void resizemouse(const Arg *arg); 196 static void restack(Monitor *m); 197 static void run(void); 198 static void scan(void); 199 static int sendevent(Client *c, Atom proto); 200 static void sendmon(Client *c, Monitor *m); 201 static void setclientstate(Client *c, long state); 202 static void setfocus(Client *c); 203 static void setfullscreen(Client *c, int fullscreen); 204 static void setlayout(const Arg *arg); 205 static void setmfact(const Arg *arg); 206 static void setup(void); 207 static void seturgent(Client *c, int urg); 208 static void showhide(Client *c); 209 static void sigchld(int unused); 210 static void slideview(const Arg *arg); 211 static void spawn(const Arg *arg); 212 static void tag(const Arg *arg); 213 static void tagmon(const Arg *arg); 214 static void tile(Monitor *m); 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->lt[0] = &layouts[0]; 648 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 649 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); 650 return m; 651 } 652 653 void 654 destroynotify(XEvent *e) 655 { 656 Client *c; 657 XDestroyWindowEvent *ev = &e->xdestroywindow; 658 659 if ((c = wintoclient(ev->window))) 660 unmanage(c, 1); 661 } 662 663 void 664 detach(Client *c) 665 { 666 Client **tc; 667 668 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next); 669 *tc = c->next; 670 } 671 672 void 673 detachstack(Client *c) 674 { 675 Client **tc, *t; 676 677 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext); 678 *tc = c->snext; 679 680 if (c == c->mon->sel) { 681 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext); 682 c->mon->sel = t; 683 } 684 } 685 686 Monitor * 687 dirtomon(int dir) 688 { 689 Monitor *m = NULL; 690 691 if (dir > 0) { 692 if (!(m = selmon->next)) 693 m = mons; 694 } else if (selmon == mons) 695 for (m = mons; m->next; m = m->next); 696 else 697 for (m = mons; m->next != selmon; m = m->next); 698 return m; 699 } 700 701 void 702 drawbar(Monitor *m) 703 { 704 int x, w, tw = 0; 705 int boxs = drw->fonts->h / 9; 706 int boxw = drw->fonts->h / 6 + 2; 707 unsigned int i, occ = 0, urg = 0; 708 Client *c; 709 710 if (!m->showbar) 711 return; 712 713 /* draw status first so it can be overdrawn by tags later */ 714 if (m == selmon) { /* status is only drawn on selected monitor */ 715 drw_setscheme(drw, scheme[SchemeNorm]); 716 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 717 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0); 718 } 719 720 for (c = m->clients; c; c = c->next) { 721 occ |= c->tags; 722 if (c->isurgent) 723 urg |= c->tags; 724 } 725 x = 0; 726 for (i = 0; i < LENGTH(tags); i++) { 727 w = TEXTW(tags[i]); 728 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); 729 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 730 if (occ & 1 << i) 731 drw_rect(drw, x + boxs, boxs, boxw, boxw, 732 m == selmon && selmon->sel && selmon->sel->tags & 1 << i, 733 urg & 1 << i); 734 x += w; 735 } 736 w = TEXTW(m->ltsymbol); 737 drw_setscheme(drw, scheme[SchemeNorm]); 738 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 739 740 if ((w = m->ww - tw - x) > bh) { 741 if (m->sel) { 742 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); 743 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 744 if (m->sel->isfloating) 745 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 746 } else { 747 drw_setscheme(drw, scheme[SchemeNorm]); 748 drw_rect(drw, x, 0, w, bh, 1, 1); 749 } 750 } 751 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 752 } 753 754 void 755 drawbars(void) 756 { 757 Monitor *m; 758 759 for (m = mons; m; m = m->next) 760 drawbar(m); 761 } 762 763 void 764 enternotify(XEvent *e) 765 { 766 Client *c; 767 Monitor *m; 768 XCrossingEvent *ev = &e->xcrossing; 769 770 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 771 return; 772 c = wintoclient(ev->window); 773 m = c ? c->mon : wintomon(ev->window); 774 if (m != selmon) { 775 unfocus(selmon->sel, 1); 776 selmon = m; 777 } else if (!c || c == selmon->sel) 778 return; 779 focus(c); 780 } 781 782 void 783 expose(XEvent *e) 784 { 785 Monitor *m; 786 XExposeEvent *ev = &e->xexpose; 787 788 if (ev->count == 0 && (m = wintomon(ev->window))) 789 drawbar(m); 790 } 791 792 void 793 focus(Client *c) 794 { 795 if (!c || !ISVISIBLE(c)) 796 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 797 if (selmon->sel && selmon->sel != c) 798 unfocus(selmon->sel, 0); 799 if (c) { 800 if (c->mon != selmon) 801 selmon = c->mon; 802 if (c->isurgent) 803 seturgent(c, 0); 804 detachstack(c); 805 attachstack(c); 806 grabbuttons(c, 1); 807 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 808 setfocus(c); 809 } else { 810 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 811 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 812 } 813 selmon->sel = c; 814 drawbars(); 815 } 816 817 /* there are some broken focus acquiring clients needing extra handling */ 818 void 819 focusin(XEvent *e) 820 { 821 XFocusChangeEvent *ev = &e->xfocus; 822 823 if (selmon->sel && ev->window != selmon->sel->win) 824 setfocus(selmon->sel); 825 } 826 827 void 828 focusmon(const Arg *arg) 829 { 830 Monitor *m; 831 832 if (!mons->next) 833 return; 834 if ((m = dirtomon(arg->i)) == selmon) 835 return; 836 unfocus(selmon->sel, 0); 837 selmon = m; 838 focus(NULL); 839 } 840 841 void 842 focusstack(const Arg *arg) 843 { 844 Client *c = NULL, *i; 845 846 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen)) 847 return; 848 if (arg->i > 0) { 849 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 850 if (!c) 851 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 852 } else { 853 for (i = selmon->clients; i != selmon->sel; i = i->next) 854 if (ISVISIBLE(i)) 855 c = i; 856 if (!c) 857 for (; i; i = i->next) 858 if (ISVISIBLE(i)) 859 c = i; 860 } 861 if (c) { 862 focus(c); 863 restack(selmon); 864 } 865 } 866 867 Atom 868 getatomprop(Client *c, Atom prop) 869 { 870 int di; 871 unsigned long dl; 872 unsigned char *p = NULL; 873 Atom da, atom = None; 874 875 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 876 &da, &di, &dl, &dl, &p) == Success && p) { 877 atom = *(Atom *)p; 878 XFree(p); 879 } 880 return atom; 881 } 882 883 int 884 getrootptr(int *x, int *y) 885 { 886 int di; 887 unsigned int dui; 888 Window dummy; 889 890 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui); 891 } 892 893 long 894 getstate(Window w) 895 { 896 int format; 897 long result = -1; 898 unsigned char *p = NULL; 899 unsigned long n, extra; 900 Atom real; 901 902 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], 903 &real, &format, &n, &extra, (unsigned char **)&p) != Success) 904 return -1; 905 if (n != 0) 906 result = *p; 907 XFree(p); 908 return result; 909 } 910 911 int 912 gettextprop(Window w, Atom atom, char *text, unsigned int size) 913 { 914 char **list = NULL; 915 int n; 916 XTextProperty name; 917 918 if (!text || size == 0) 919 return 0; 920 text[0] = '\0'; 921 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems) 922 return 0; 923 if (name.encoding == XA_STRING) { 924 strncpy(text, (char *)name.value, size - 1); 925 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) { 926 strncpy(text, *list, size - 1); 927 XFreeStringList(list); 928 } 929 text[size - 1] = '\0'; 930 XFree(name.value); 931 return 1; 932 } 933 934 void 935 grabbuttons(Client *c, int focused) 936 { 937 updatenumlockmask(); 938 { 939 unsigned int i, j; 940 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 941 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 942 if (!focused) 943 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, 944 BUTTONMASK, GrabModeSync, GrabModeSync, None, None); 945 for (i = 0; i < LENGTH(buttons); i++) 946 if (buttons[i].click == ClkClientWin) 947 for (j = 0; j < LENGTH(modifiers); j++) 948 XGrabButton(dpy, buttons[i].button, 949 buttons[i].mask | modifiers[j], 950 c->win, False, BUTTONMASK, 951 GrabModeAsync, GrabModeSync, None, None); 952 } 953 } 954 955 void 956 grabkeys(void) 957 { 958 updatenumlockmask(); 959 { 960 unsigned int i, j, k; 961 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 962 int start, end, skip; 963 KeySym *syms; 964 965 XUngrabKey(dpy, AnyKey, AnyModifier, root); 966 XDisplayKeycodes(dpy, &start, &end); 967 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip); 968 if (!syms) 969 return; 970 for (k = start; k <= end; k++) 971 for (i = 0; i < LENGTH(keys); i++) 972 /* skip modifier codes, we do that ourselves */ 973 if (keys[i].keysym == syms[(k - start) * skip]) 974 for (j = 0; j < LENGTH(modifiers); j++) 975 XGrabKey(dpy, k, 976 keys[i].mod | modifiers[j], 977 root, True, 978 GrabModeAsync, GrabModeAsync); 979 XFree(syms); 980 } 981 } 982 983 void 984 incnmaster(const Arg *arg) 985 { 986 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); 987 arrange(selmon); 988 } 989 990 #ifdef XINERAMA 991 static int 992 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) 993 { 994 while (n--) 995 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org 996 && unique[n].width == info->width && unique[n].height == info->height) 997 return 0; 998 return 1; 999 } 1000 #endif /* XINERAMA */ 1001 1002 void 1003 keypress(XEvent *e) 1004 { 1005 unsigned int i; 1006 KeySym keysym; 1007 XKeyEvent *ev; 1008 1009 ev = &e->xkey; 1010 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); 1011 for (i = 0; i < LENGTH(keys); i++) 1012 if (keysym == keys[i].keysym 1013 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) 1014 && keys[i].func) 1015 keys[i].func(&(keys[i].arg)); 1016 } 1017 1018 void 1019 killclient(const Arg *arg) 1020 { 1021 if (!selmon->sel) 1022 return; 1023 if (!sendevent(selmon->sel, wmatom[WMDelete])) { 1024 XGrabServer(dpy); 1025 XSetErrorHandler(xerrordummy); 1026 XSetCloseDownMode(dpy, DestroyAll); 1027 XKillClient(dpy, selmon->sel->win); 1028 XSync(dpy, False); 1029 XSetErrorHandler(xerror); 1030 XUngrabServer(dpy); 1031 } 1032 } 1033 1034 void 1035 manage(Window w, XWindowAttributes *wa) 1036 { 1037 Client *c, *t = NULL; 1038 Window trans = None; 1039 XWindowChanges wc; 1040 1041 c = ecalloc(1, sizeof(Client)); 1042 c->win = w; 1043 /* geometry */ 1044 c->x = c->oldx = wa->x; 1045 c->y = c->oldy = wa->y; 1046 c->w = c->oldw = wa->width; 1047 c->h = c->oldh = wa->height; 1048 c->oldbw = wa->border_width; 1049 1050 updatetitle(c); 1051 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { 1052 c->mon = t->mon; 1053 c->tags = t->tags; 1054 } else { 1055 c->mon = selmon; 1056 applyrules(c); 1057 } 1058 1059 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww) 1060 c->x = c->mon->wx + c->mon->ww - WIDTH(c); 1061 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh) 1062 c->y = c->mon->wy + c->mon->wh - HEIGHT(c); 1063 c->x = MAX(c->x, c->mon->wx); 1064 c->y = MAX(c->y, c->mon->wy); 1065 c->bw = borderpx; 1066 1067 wc.border_width = c->bw; 1068 XConfigureWindow(dpy, w, CWBorderWidth, &wc); 1069 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); 1070 configure(c); /* propagates border_width, if size doesn't change */ 1071 updatewindowtype(c); 1072 updatesizehints(c); 1073 updatewmhints(c); 1074 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); 1075 grabbuttons(c, 0); 1076 if (!c->isfloating) 1077 c->isfloating = c->oldstate = trans != None || c->isfixed; 1078 if (c->isfloating) 1079 XRaiseWindow(dpy, c->win); 1080 attach(c); 1081 attachstack(c); 1082 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend, 1083 (unsigned char *) &(c->win), 1); 1084 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */ 1085 setclientstate(c, NormalState); 1086 if (c->mon == selmon) 1087 unfocus(selmon->sel, 0); 1088 c->mon->sel = c; 1089 arrange(c->mon); 1090 XMapWindow(dpy, c->win); 1091 focus(NULL); 1092 } 1093 1094 void 1095 mappingnotify(XEvent *e) 1096 { 1097 XMappingEvent *ev = &e->xmapping; 1098 1099 XRefreshKeyboardMapping(ev); 1100 if (ev->request == MappingKeyboard) 1101 grabkeys(); 1102 } 1103 1104 void 1105 maprequest(XEvent *e) 1106 { 1107 static XWindowAttributes wa; 1108 XMapRequestEvent *ev = &e->xmaprequest; 1109 1110 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect) 1111 return; 1112 if (!wintoclient(ev->window)) 1113 manage(ev->window, &wa); 1114 } 1115 1116 void 1117 monocle(Monitor *m) 1118 { 1119 unsigned int n = 0; 1120 Client *c; 1121 1122 for (c = m->clients; c; c = c->next) 1123 if (ISVISIBLE(c)) 1124 n++; 1125 if (n > 0) /* override layout symbol */ 1126 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n); 1127 for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) 1128 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0); 1129 } 1130 1131 void 1132 motionnotify(XEvent *e) 1133 { 1134 static Monitor *mon = NULL; 1135 Monitor *m; 1136 XMotionEvent *ev = &e->xmotion; 1137 1138 if (ev->window != root) 1139 return; 1140 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) { 1141 unfocus(selmon->sel, 1); 1142 selmon = m; 1143 focus(NULL); 1144 } 1145 mon = m; 1146 } 1147 1148 void 1149 movemouse(const Arg *arg) 1150 { 1151 int x, y, ocx, ocy, nx, ny; 1152 Client *c; 1153 Monitor *m; 1154 XEvent ev; 1155 Time lasttime = 0; 1156 1157 if (!(c = selmon->sel)) 1158 return; 1159 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ 1160 return; 1161 restack(selmon); 1162 ocx = c->x; 1163 ocy = c->y; 1164 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1165 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) 1166 return; 1167 if (!getrootptr(&x, &y)) 1168 return; 1169 do { 1170 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1171 switch(ev.type) { 1172 case ConfigureRequest: 1173 case Expose: 1174 case MapRequest: 1175 handler[ev.type](&ev); 1176 break; 1177 case MotionNotify: 1178 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1179 continue; 1180 lasttime = ev.xmotion.time; 1181 1182 nx = ocx + (ev.xmotion.x - x); 1183 ny = ocy + (ev.xmotion.y - y); 1184 if (abs(selmon->wx - nx) < snap) 1185 nx = selmon->wx; 1186 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) 1187 nx = selmon->wx + selmon->ww - WIDTH(c); 1188 if (abs(selmon->wy - ny) < snap) 1189 ny = selmon->wy; 1190 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) 1191 ny = selmon->wy + selmon->wh - HEIGHT(c); 1192 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1193 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) 1194 togglefloating(NULL); 1195 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1196 resize(c, nx, ny, c->w, c->h, 1); 1197 break; 1198 } 1199 } while (ev.type != ButtonRelease); 1200 XUngrabPointer(dpy, CurrentTime); 1201 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1202 sendmon(c, m); 1203 selmon = m; 1204 focus(NULL); 1205 } 1206 } 1207 1208 Client * 1209 nexttiled(Client *c) 1210 { 1211 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next); 1212 return c; 1213 } 1214 1215 void 1216 pop(Client *c) 1217 { 1218 detach(c); 1219 attach(c); 1220 focus(c); 1221 arrange(c->mon); 1222 } 1223 1224 int 1225 popcnt(unsigned int x) 1226 { 1227 int n = 0; 1228 for (; x != 0; x &= x-1) 1229 n += 1; 1230 return n; 1231 } 1232 1233 void 1234 propertynotify(XEvent *e) 1235 { 1236 Client *c; 1237 Window trans; 1238 XPropertyEvent *ev = &e->xproperty; 1239 1240 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1241 updatestatus(); 1242 else if (ev->state == PropertyDelete) 1243 return; /* ignore */ 1244 else if ((c = wintoclient(ev->window))) { 1245 switch(ev->atom) { 1246 default: break; 1247 case XA_WM_TRANSIENT_FOR: 1248 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1249 (c->isfloating = (wintoclient(trans)) != NULL)) 1250 arrange(c->mon); 1251 break; 1252 case XA_WM_NORMAL_HINTS: 1253 c->hintsvalid = 0; 1254 break; 1255 case XA_WM_HINTS: 1256 updatewmhints(c); 1257 drawbars(); 1258 break; 1259 } 1260 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1261 updatetitle(c); 1262 if (c == c->mon->sel) 1263 drawbar(c->mon); 1264 } 1265 if (ev->atom == netatom[NetWMWindowType]) 1266 updatewindowtype(c); 1267 } 1268 } 1269 1270 void 1271 quit(const Arg *arg) 1272 { 1273 running = 0; 1274 } 1275 1276 Monitor * 1277 recttomon(int x, int y, int w, int h) 1278 { 1279 Monitor *m, *r = selmon; 1280 int a, area = 0; 1281 1282 for (m = mons; m; m = m->next) 1283 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1284 area = a; 1285 r = m; 1286 } 1287 return r; 1288 } 1289 1290 void 1291 resize(Client *c, int x, int y, int w, int h, int interact) 1292 { 1293 if (applysizehints(c, &x, &y, &w, &h, interact)) 1294 resizeclient(c, x, y, w, h); 1295 } 1296 1297 void 1298 resizeclient(Client *c, int x, int y, int w, int h) 1299 { 1300 XWindowChanges wc; 1301 1302 c->oldx = c->x; c->x = wc.x = x; 1303 c->oldy = c->y; c->y = wc.y = y; 1304 c->oldw = c->w; c->w = wc.width = w; 1305 c->oldh = c->h; c->h = wc.height = h; 1306 wc.border_width = c->bw; 1307 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1308 configure(c); 1309 XSync(dpy, False); 1310 } 1311 1312 void 1313 resizemouse(const Arg *arg) 1314 { 1315 int ocx, ocy, nw, nh; 1316 Client *c; 1317 Monitor *m; 1318 XEvent ev; 1319 Time lasttime = 0; 1320 1321 if (!(c = selmon->sel)) 1322 return; 1323 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1324 return; 1325 restack(selmon); 1326 ocx = c->x; 1327 ocy = c->y; 1328 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1329 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1330 return; 1331 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1332 do { 1333 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1334 switch(ev.type) { 1335 case ConfigureRequest: 1336 case Expose: 1337 case MapRequest: 1338 handler[ev.type](&ev); 1339 break; 1340 case MotionNotify: 1341 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1342 continue; 1343 lasttime = ev.xmotion.time; 1344 1345 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1346 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1347 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1348 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1349 { 1350 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1351 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1352 togglefloating(NULL); 1353 } 1354 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1355 resize(c, c->x, c->y, nw, nh, 1); 1356 break; 1357 } 1358 } while (ev.type != ButtonRelease); 1359 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1360 XUngrabPointer(dpy, CurrentTime); 1361 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1362 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1363 sendmon(c, m); 1364 selmon = m; 1365 focus(NULL); 1366 } 1367 } 1368 1369 void 1370 restack(Monitor *m) 1371 { 1372 Client *c; 1373 XEvent ev; 1374 XWindowChanges wc; 1375 1376 drawbar(m); 1377 if (!m->sel) 1378 return; 1379 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1380 XRaiseWindow(dpy, m->sel->win); 1381 if (m->lt[m->sellt]->arrange) { 1382 wc.stack_mode = Below; 1383 wc.sibling = m->barwin; 1384 for (c = m->stack; c; c = c->snext) 1385 if (!c->isfloating && ISVISIBLE(c)) { 1386 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1387 wc.sibling = c->win; 1388 } 1389 } 1390 XSync(dpy, False); 1391 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1392 } 1393 1394 void 1395 run(void) 1396 { 1397 XEvent ev; 1398 /* main event loop */ 1399 XSync(dpy, False); 1400 while (running && !XNextEvent(dpy, &ev)) 1401 if (handler[ev.type]) 1402 handler[ev.type](&ev); /* call handler */ 1403 } 1404 1405 void 1406 scan(void) 1407 { 1408 unsigned int i, num; 1409 Window d1, d2, *wins = NULL; 1410 XWindowAttributes wa; 1411 1412 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1413 for (i = 0; i < num; i++) { 1414 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1415 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1416 continue; 1417 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1418 manage(wins[i], &wa); 1419 } 1420 for (i = 0; i < num; i++) { /* now the transients */ 1421 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1422 continue; 1423 if (XGetTransientForHint(dpy, wins[i], &d1) 1424 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1425 manage(wins[i], &wa); 1426 } 1427 if (wins) 1428 XFree(wins); 1429 } 1430 } 1431 1432 void 1433 sendmon(Client *c, Monitor *m) 1434 { 1435 if (c->mon == m) 1436 return; 1437 unfocus(c, 1); 1438 detach(c); 1439 detachstack(c); 1440 c->mon = m; 1441 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1442 attach(c); 1443 attachstack(c); 1444 focus(NULL); 1445 arrange(NULL); 1446 } 1447 1448 void 1449 setclientstate(Client *c, long state) 1450 { 1451 long data[] = { state, None }; 1452 1453 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1454 PropModeReplace, (unsigned char *)data, 2); 1455 } 1456 1457 int 1458 sendevent(Client *c, Atom proto) 1459 { 1460 int n; 1461 Atom *protocols; 1462 int exists = 0; 1463 XEvent ev; 1464 1465 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1466 while (!exists && n--) 1467 exists = protocols[n] == proto; 1468 XFree(protocols); 1469 } 1470 if (exists) { 1471 ev.type = ClientMessage; 1472 ev.xclient.window = c->win; 1473 ev.xclient.message_type = wmatom[WMProtocols]; 1474 ev.xclient.format = 32; 1475 ev.xclient.data.l[0] = proto; 1476 ev.xclient.data.l[1] = CurrentTime; 1477 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1478 } 1479 return exists; 1480 } 1481 1482 void 1483 setfocus(Client *c) 1484 { 1485 if (!c->neverfocus) { 1486 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1487 XChangeProperty(dpy, root, netatom[NetActiveWindow], 1488 XA_WINDOW, 32, PropModeReplace, 1489 (unsigned char *) &(c->win), 1); 1490 } 1491 sendevent(c, wmatom[WMTakeFocus]); 1492 } 1493 1494 void 1495 setfullscreen(Client *c, int fullscreen) 1496 { 1497 if (fullscreen && !c->isfullscreen) { 1498 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1499 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1500 c->isfullscreen = 1; 1501 c->oldstate = c->isfloating; 1502 c->oldbw = c->bw; 1503 c->bw = 0; 1504 c->isfloating = 1; 1505 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1506 XRaiseWindow(dpy, c->win); 1507 } else if (!fullscreen && c->isfullscreen){ 1508 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1509 PropModeReplace, (unsigned char*)0, 0); 1510 c->isfullscreen = 0; 1511 c->isfloating = c->oldstate; 1512 c->bw = c->oldbw; 1513 c->x = c->oldx; 1514 c->y = c->oldy; 1515 c->w = c->oldw; 1516 c->h = c->oldh; 1517 resizeclient(c, c->x, c->y, c->w, c->h); 1518 arrange(c->mon); 1519 } 1520 } 1521 1522 void 1523 setlayout(const Arg *arg) 1524 { 1525 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1526 selmon->sellt ^= 1; 1527 if (arg && arg->v) 1528 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1529 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol); 1530 if (selmon->sel) 1531 arrange(selmon); 1532 else 1533 drawbar(selmon); 1534 } 1535 1536 /* arg > 1.0 will set mfact absolutely */ 1537 void 1538 setmfact(const Arg *arg) 1539 { 1540 float f; 1541 1542 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1543 return; 1544 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1545 if (f < 0.05 || f > 0.95) 1546 return; 1547 selmon->mfact = f; 1548 arrange(selmon); 1549 } 1550 1551 void 1552 setup(void) 1553 { 1554 int i; 1555 XSetWindowAttributes wa; 1556 Atom utf8string; 1557 struct sigaction sa; 1558 1559 /* do not transform children into zombies when they terminate */ 1560 sigemptyset(&sa.sa_mask); 1561 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART; 1562 sa.sa_handler = SIG_IGN; 1563 sigaction(SIGCHLD, &sa, NULL); 1564 1565 /* clean up any zombies (inherited from .xinitrc etc) immediately */ 1566 while (waitpid(-1, NULL, WNOHANG) > 0); 1567 1568 /* init screen */ 1569 screen = DefaultScreen(dpy); 1570 sw = DisplayWidth(dpy, screen); 1571 sh = DisplayHeight(dpy, screen); 1572 root = RootWindow(dpy, screen); 1573 drw = drw_create(dpy, screen, root, sw, sh); 1574 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1575 die("no fonts could be loaded."); 1576 lrpad = drw->fonts->h; 1577 bh = drw->fonts->h + 2; 1578 updategeom(); 1579 /* init atoms */ 1580 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1581 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1582 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1583 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1584 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1585 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1586 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1587 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1588 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1589 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1590 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1591 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1592 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1593 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1594 /* init cursors */ 1595 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1596 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1597 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1598 /* init appearance */ 1599 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1600 for (i = 0; i < LENGTH(colors); i++) 1601 scheme[i] = drw_scm_create(drw, colors[i], 3); 1602 /* init bars */ 1603 updatebars(); 1604 updatestatus(); 1605 /* supporting window for NetWMCheck */ 1606 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1607 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1608 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1609 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1610 PropModeReplace, (unsigned char *) "dwm", 3); 1611 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1612 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1613 /* EWMH support per view */ 1614 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1615 PropModeReplace, (unsigned char *) netatom, NetLast); 1616 XDeleteProperty(dpy, root, netatom[NetClientList]); 1617 /* select events */ 1618 wa.cursor = cursor[CurNormal]->cursor; 1619 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1620 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1621 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1622 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1623 XSelectInput(dpy, root, wa.event_mask); 1624 grabkeys(); 1625 focus(NULL); 1626 } 1627 1628 void 1629 seturgent(Client *c, int urg) 1630 { 1631 XWMHints *wmh; 1632 1633 c->isurgent = urg; 1634 if (!(wmh = XGetWMHints(dpy, c->win))) 1635 return; 1636 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1637 XSetWMHints(dpy, c->win, wmh); 1638 XFree(wmh); 1639 } 1640 1641 void 1642 showhide(Client *c) 1643 { 1644 if (!c) 1645 return; 1646 if (ISVISIBLE(c)) { 1647 /* show clients top down */ 1648 XMoveWindow(dpy, c->win, c->x, c->y); 1649 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen) 1650 resize(c, c->x, c->y, c->w, c->h, 0); 1651 showhide(c->snext); 1652 } else { 1653 /* hide clients bottom up */ 1654 showhide(c->snext); 1655 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1656 } 1657 } 1658 1659 void 1660 sigchld(int unused) 1661 { 1662 if (signal(SIGCHLD, sigchld) == SIG_ERR) 1663 die("can't install SIGCHLD handler:"); 1664 while (0 < waitpid(-1, NULL, WNOHANG)); 1665 } 1666 1667 void 1668 slideview(const Arg *arg) 1669 { 1670 int n = arg->i; 1671 int tagset = selmon->tagset[selmon->seltags]; 1672 if (popcnt(tagset) > 1) 1673 return; 1674 if (n < 0) 1675 n += LENGTH(tags); 1676 tagset = ((tagset << n) & TAGMASK) | (tagset >> (LENGTH(tags) - n)); 1677 selmon->tagset[selmon->seltags] = tagset; 1678 focus(NULL); 1679 arrange(selmon); 1680 } 1681 1682 void 1683 spawn(const Arg *arg) 1684 { 1685 struct sigaction sa; 1686 1687 if (arg->v == dmenucmd) 1688 dmenumon[0] = '0' + selmon->num; 1689 if (fork() == 0) { 1690 if (dpy) 1691 close(ConnectionNumber(dpy)); 1692 setsid(); 1693 1694 sigemptyset(&sa.sa_mask); 1695 sa.sa_flags = 0; 1696 sa.sa_handler = SIG_DFL; 1697 sigaction(SIGCHLD, &sa, NULL); 1698 1699 execvp(((char **)arg->v)[0], (char **)arg->v); 1700 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]); 1701 } 1702 } 1703 1704 void 1705 tag(const Arg *arg) 1706 { 1707 if (selmon->sel && arg->ui & TAGMASK) { 1708 selmon->sel->tags = arg->ui & TAGMASK; 1709 focus(NULL); 1710 arrange(selmon); 1711 } 1712 } 1713 1714 void 1715 tagmon(const Arg *arg) 1716 { 1717 if (!selmon->sel || !mons->next) 1718 return; 1719 sendmon(selmon->sel, dirtomon(arg->i)); 1720 } 1721 1722 void 1723 tile(Monitor *m) 1724 { 1725 unsigned int i, n, h, mw, my, ty; 1726 Client *c; 1727 1728 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++); 1729 if (n == 0) 1730 return; 1731 1732 if (n > m->nmaster) 1733 mw = m->nmaster ? m->ww * m->mfact : 0; 1734 else 1735 mw = m->ww; 1736 for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) 1737 if (i < m->nmaster) { 1738 h = (m->wh - my) / (MIN(n, m->nmaster) - i); 1739 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0); 1740 if (my + HEIGHT(c) < m->wh) 1741 my += HEIGHT(c); 1742 } else { 1743 h = (m->wh - ty) / (n - i); 1744 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0); 1745 if (ty + HEIGHT(c) < m->wh) 1746 ty += HEIGHT(c); 1747 } 1748 } 1749 1750 void 1751 togglebar(const Arg *arg) 1752 { 1753 selmon->showbar = !selmon->showbar; 1754 updatebarpos(selmon); 1755 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1756 arrange(selmon); 1757 } 1758 1759 void 1760 togglefloating(const Arg *arg) 1761 { 1762 if (!selmon->sel) 1763 return; 1764 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */ 1765 return; 1766 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed; 1767 if (selmon->sel->isfloating) 1768 resize(selmon->sel, selmon->sel->x, selmon->sel->y, 1769 selmon->sel->w, selmon->sel->h, 0); 1770 arrange(selmon); 1771 } 1772 1773 void 1774 toggletag(const Arg *arg) 1775 { 1776 unsigned int newtags; 1777 1778 if (!selmon->sel) 1779 return; 1780 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1781 if (newtags) { 1782 selmon->sel->tags = newtags; 1783 focus(NULL); 1784 arrange(selmon); 1785 } 1786 } 1787 1788 void 1789 toggleview(const Arg *arg) 1790 { 1791 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1792 1793 if (newtagset) { 1794 selmon->tagset[selmon->seltags] = newtagset; 1795 focus(NULL); 1796 arrange(selmon); 1797 } 1798 } 1799 1800 void 1801 unfocus(Client *c, int setfocus) 1802 { 1803 if (!c) 1804 return; 1805 grabbuttons(c, 0); 1806 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1807 if (setfocus) { 1808 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1809 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1810 } 1811 } 1812 1813 void 1814 unmanage(Client *c, int destroyed) 1815 { 1816 Monitor *m = c->mon; 1817 XWindowChanges wc; 1818 1819 detach(c); 1820 detachstack(c); 1821 if (!destroyed) { 1822 wc.border_width = c->oldbw; 1823 XGrabServer(dpy); /* avoid race conditions */ 1824 XSetErrorHandler(xerrordummy); 1825 XSelectInput(dpy, c->win, NoEventMask); 1826 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1827 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1828 setclientstate(c, WithdrawnState); 1829 XSync(dpy, False); 1830 XSetErrorHandler(xerror); 1831 XUngrabServer(dpy); 1832 } 1833 free(c); 1834 focus(NULL); 1835 updateclientlist(); 1836 arrange(m); 1837 } 1838 1839 void 1840 unmapnotify(XEvent *e) 1841 { 1842 Client *c; 1843 XUnmapEvent *ev = &e->xunmap; 1844 1845 if ((c = wintoclient(ev->window))) { 1846 if (ev->send_event) 1847 setclientstate(c, WithdrawnState); 1848 else 1849 unmanage(c, 0); 1850 } 1851 } 1852 1853 void 1854 updatebars(void) 1855 { 1856 Monitor *m; 1857 XSetWindowAttributes wa = { 1858 .override_redirect = True, 1859 .background_pixmap = ParentRelative, 1860 .event_mask = ButtonPressMask|ExposureMask 1861 }; 1862 XClassHint ch = {"dwm", "dwm"}; 1863 for (m = mons; m; m = m->next) { 1864 if (m->barwin) 1865 continue; 1866 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1867 CopyFromParent, DefaultVisual(dpy, screen), 1868 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1869 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1870 XMapRaised(dpy, m->barwin); 1871 XSetClassHint(dpy, m->barwin, &ch); 1872 } 1873 } 1874 1875 void 1876 updatebarpos(Monitor *m) 1877 { 1878 m->wy = m->my; 1879 m->wh = m->mh; 1880 if (m->showbar) { 1881 m->wh -= bh; 1882 m->by = m->topbar ? m->wy : m->wy + m->wh; 1883 m->wy = m->topbar ? m->wy + bh : m->wy; 1884 } else 1885 m->by = -bh; 1886 } 1887 1888 void 1889 updateclientlist() 1890 { 1891 Client *c; 1892 Monitor *m; 1893 1894 XDeleteProperty(dpy, root, netatom[NetClientList]); 1895 for (m = mons; m; m = m->next) 1896 for (c = m->clients; c; c = c->next) 1897 XChangeProperty(dpy, root, netatom[NetClientList], 1898 XA_WINDOW, 32, PropModeAppend, 1899 (unsigned char *) &(c->win), 1); 1900 } 1901 1902 int 1903 updategeom(void) 1904 { 1905 int dirty = 0; 1906 1907 #ifdef XINERAMA 1908 if (XineramaIsActive(dpy)) { 1909 int i, j, n, nn; 1910 Client *c; 1911 Monitor *m; 1912 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1913 XineramaScreenInfo *unique = NULL; 1914 1915 for (n = 0, m = mons; m; m = m->next, n++); 1916 /* only consider unique geometries as separate screens */ 1917 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1918 for (i = 0, j = 0; i < nn; i++) 1919 if (isuniquegeom(unique, j, &info[i])) 1920 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1921 XFree(info); 1922 nn = j; 1923 1924 /* new monitors if nn > n */ 1925 for (i = n; i < nn; i++) { 1926 for (m = mons; m && m->next; m = m->next); 1927 if (m) 1928 m->next = createmon(); 1929 else 1930 mons = createmon(); 1931 } 1932 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 1933 if (i >= n 1934 || unique[i].x_org != m->mx || unique[i].y_org != m->my 1935 || unique[i].width != m->mw || unique[i].height != m->mh) 1936 { 1937 dirty = 1; 1938 m->num = i; 1939 m->mx = m->wx = unique[i].x_org; 1940 m->my = m->wy = unique[i].y_org; 1941 m->mw = m->ww = unique[i].width; 1942 m->mh = m->wh = unique[i].height; 1943 updatebarpos(m); 1944 } 1945 /* removed monitors if n > nn */ 1946 for (i = nn; i < n; i++) { 1947 for (m = mons; m && m->next; m = m->next); 1948 while ((c = m->clients)) { 1949 dirty = 1; 1950 m->clients = c->next; 1951 detachstack(c); 1952 c->mon = mons; 1953 attach(c); 1954 attachstack(c); 1955 } 1956 if (m == selmon) 1957 selmon = mons; 1958 cleanupmon(m); 1959 } 1960 free(unique); 1961 } else 1962 #endif /* XINERAMA */ 1963 { /* default monitor setup */ 1964 if (!mons) 1965 mons = createmon(); 1966 if (mons->mw != sw || mons->mh != sh) { 1967 dirty = 1; 1968 mons->mw = mons->ww = sw; 1969 mons->mh = mons->wh = sh; 1970 updatebarpos(mons); 1971 } 1972 } 1973 if (dirty) { 1974 selmon = mons; 1975 selmon = wintomon(root); 1976 } 1977 return dirty; 1978 } 1979 1980 void 1981 updatenumlockmask(void) 1982 { 1983 unsigned int i, j; 1984 XModifierKeymap *modmap; 1985 1986 numlockmask = 0; 1987 modmap = XGetModifierMapping(dpy); 1988 for (i = 0; i < 8; i++) 1989 for (j = 0; j < modmap->max_keypermod; j++) 1990 if (modmap->modifiermap[i * modmap->max_keypermod + j] 1991 == XKeysymToKeycode(dpy, XK_Num_Lock)) 1992 numlockmask = (1 << i); 1993 XFreeModifiermap(modmap); 1994 } 1995 1996 void 1997 updatesizehints(Client *c) 1998 { 1999 long msize; 2000 XSizeHints size; 2001 2002 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 2003 /* size is uninitialized, ensure that size.flags aren't used */ 2004 size.flags = PSize; 2005 if (size.flags & PBaseSize) { 2006 c->basew = size.base_width; 2007 c->baseh = size.base_height; 2008 } else if (size.flags & PMinSize) { 2009 c->basew = size.min_width; 2010 c->baseh = size.min_height; 2011 } else 2012 c->basew = c->baseh = 0; 2013 if (size.flags & PResizeInc) { 2014 c->incw = size.width_inc; 2015 c->inch = size.height_inc; 2016 } else 2017 c->incw = c->inch = 0; 2018 if (size.flags & PMaxSize) { 2019 c->maxw = size.max_width; 2020 c->maxh = size.max_height; 2021 } else 2022 c->maxw = c->maxh = 0; 2023 if (size.flags & PMinSize) { 2024 c->minw = size.min_width; 2025 c->minh = size.min_height; 2026 } else if (size.flags & PBaseSize) { 2027 c->minw = size.base_width; 2028 c->minh = size.base_height; 2029 } else 2030 c->minw = c->minh = 0; 2031 if (size.flags & PAspect) { 2032 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 2033 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 2034 } else 2035 c->maxa = c->mina = 0.0; 2036 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 2037 c->hintsvalid = 1; 2038 } 2039 2040 void 2041 updatestatus(void) 2042 { 2043 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 2044 strcpy(stext, "dwm-"VERSION); 2045 drawbar(selmon); 2046 } 2047 2048 void 2049 updatetitle(Client *c) 2050 { 2051 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 2052 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 2053 if (c->name[0] == '\0') /* hack to mark broken clients */ 2054 strcpy(c->name, broken); 2055 } 2056 2057 void 2058 updatewindowtype(Client *c) 2059 { 2060 Atom state = getatomprop(c, netatom[NetWMState]); 2061 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2062 2063 if (state == netatom[NetWMFullscreen]) 2064 setfullscreen(c, 1); 2065 if (wtype == netatom[NetWMWindowTypeDialog]) 2066 c->isfloating = 1; 2067 } 2068 2069 void 2070 updatewmhints(Client *c) 2071 { 2072 XWMHints *wmh; 2073 2074 if ((wmh = XGetWMHints(dpy, c->win))) { 2075 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2076 wmh->flags &= ~XUrgencyHint; 2077 XSetWMHints(dpy, c->win, wmh); 2078 } else 2079 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2080 if (wmh->flags & InputHint) 2081 c->neverfocus = !wmh->input; 2082 else 2083 c->neverfocus = 0; 2084 XFree(wmh); 2085 } 2086 } 2087 2088 void 2089 view(const Arg *arg) 2090 { 2091 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2092 return; 2093 selmon->seltags ^= 1; /* toggle sel tagset */ 2094 if (arg->ui & TAGMASK) 2095 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2096 focus(NULL); 2097 arrange(selmon); 2098 } 2099 2100 Client * 2101 wintoclient(Window w) 2102 { 2103 Client *c; 2104 Monitor *m; 2105 2106 for (m = mons; m; m = m->next) 2107 for (c = m->clients; c; c = c->next) 2108 if (c->win == w) 2109 return c; 2110 return NULL; 2111 } 2112 2113 Monitor * 2114 wintomon(Window w) 2115 { 2116 int x, y; 2117 Client *c; 2118 Monitor *m; 2119 2120 if (w == root && getrootptr(&x, &y)) 2121 return recttomon(x, y, 1, 1); 2122 for (m = mons; m; m = m->next) 2123 if (w == m->barwin) 2124 return m; 2125 if ((c = wintoclient(w))) 2126 return c->mon; 2127 return selmon; 2128 } 2129 2130 /* There's no way to check accesses to destroyed windows, thus those cases are 2131 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2132 * default error handler, which may call exit. */ 2133 int 2134 xerror(Display *dpy, XErrorEvent *ee) 2135 { 2136 if (ee->error_code == BadWindow 2137 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2138 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2139 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2140 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2141 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2142 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2143 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2144 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2145 return 0; 2146 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2147 ee->request_code, ee->error_code); 2148 return xerrorxlib(dpy, ee); /* may call exit */ 2149 } 2150 2151 int 2152 xerrordummy(Display *dpy, XErrorEvent *ee) 2153 { 2154 return 0; 2155 } 2156 2157 /* Startup Error handler to check if another window manager 2158 * is already running. */ 2159 int 2160 xerrorstart(Display *dpy, XErrorEvent *ee) 2161 { 2162 die("dwm: another window manager is already running"); 2163 return -1; 2164 } 2165 2166 void 2167 zoom(const Arg *arg) 2168 { 2169 Client *c = selmon->sel; 2170 2171 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating) 2172 return; 2173 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next))) 2174 return; 2175 pop(c); 2176 } 2177 2178 int 2179 main(int argc, char *argv[]) 2180 { 2181 if (argc == 2 && !strcmp("-v", argv[1])) 2182 die("dwm-"VERSION); 2183 else if (argc != 1) 2184 die("usage: dwm [-v]"); 2185 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2186 fputs("warning: no locale support\n", stderr); 2187 if (!(dpy = XOpenDisplay(NULL))) 2188 die("dwm: cannot open display"); 2189 checkotherwm(); 2190 setup(); 2191 #ifdef __OpenBSD__ 2192 if (pledge("stdio rpath proc exec", NULL) == -1) 2193 die("pledge"); 2194 #endif /* __OpenBSD__ */ 2195 scan(); 2196 run(); 2197 cleanup(); 2198 XCloseDisplay(dpy); 2199 return EXIT_SUCCESS; 2200 }