dwm.c (53768B)
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 MOUSEMASK (BUTTONMASK|PointerMotionMask) 54 #define WIDTH(X) ((X)->w + 2 * (X)->bw) 55 #define HEIGHT(X) ((X)->h + 2 * (X)->bw) 56 #define TAGMASK ((1 << LENGTH(tags)) - 1) 57 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 58 59 /* enums */ 60 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ 61 enum { SchemeNorm, SchemeSel }; /* color schemes */ 62 enum { NetSupported, NetWMName, NetWMState, NetWMCheck, 63 NetWMFullscreen, NetActiveWindow, NetWMWindowType, 64 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ 65 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */ 66 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, 67 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */ 68 69 typedef union { 70 int i; 71 unsigned int ui; 72 float f; 73 const void *v; 74 } Arg; 75 76 typedef struct { 77 unsigned int click; 78 unsigned int mask; 79 unsigned int button; 80 void (*func)(const Arg *arg); 81 const Arg arg; 82 } Button; 83 84 typedef struct Monitor Monitor; 85 typedef struct Client Client; 86 struct Client { 87 char name[256]; 88 float mina, maxa; 89 int x, y, w, h; 90 int oldx, oldy, oldw, oldh; 91 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid; 92 int bw, oldbw; 93 unsigned int tags; 94 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen; 95 Client *next; 96 Client *snext; 97 Monitor *mon; 98 Window win; 99 }; 100 101 typedef struct { 102 unsigned int mod; 103 KeySym keysym; 104 void (*func)(const Arg *); 105 const Arg arg; 106 } Key; 107 108 typedef struct { 109 const char *symbol; 110 void (*arrange)(Monitor *); 111 } Layout; 112 113 struct Monitor { 114 char ltsymbol[16]; 115 float mfact; 116 int nmaster; 117 int num; 118 int by; /* bar geometry */ 119 int mx, my, mw, mh; /* screen size */ 120 int wx, wy, ww, wh; /* window area */ 121 unsigned int seltags; 122 unsigned int sellt; 123 unsigned int tagset[2]; 124 int showbar; 125 int topbar; 126 Client *clients; 127 Client *sel; 128 Client *stack; 129 Monitor *next; 130 Window barwin; 131 const Layout *lt[2]; 132 }; 133 134 typedef struct { 135 const char *class; 136 const char *instance; 137 const char *title; 138 unsigned int tags; 139 int isfloating; 140 int monitor; 141 } Rule; 142 143 /* function declarations */ 144 static void applyrules(Client *c); 145 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact); 146 static void arrange(Monitor *m); 147 static void arrangemon(Monitor *m); 148 static void attach(Client *c); 149 static void attachstack(Client *c); 150 static void buttonpress(XEvent *e); 151 static void checkotherwm(void); 152 static void cleanup(void); 153 static void cleanupmon(Monitor *mon); 154 static void clientmessage(XEvent *e); 155 static void configure(Client *c); 156 static void configurenotify(XEvent *e); 157 static void configurerequest(XEvent *e); 158 static Monitor *createmon(void); 159 static void destroynotify(XEvent *e); 160 static void detach(Client *c); 161 static void detachstack(Client *c); 162 static Monitor *dirtomon(int dir); 163 static void drawbar(Monitor *m); 164 static void drawbars(void); 165 static void enternotify(XEvent *e); 166 static void expose(XEvent *e); 167 static void focus(Client *c); 168 static void focusin(XEvent *e); 169 static void focusmon(const Arg *arg); 170 static void focusstack(const Arg *arg); 171 static Atom getatomprop(Client *c, Atom prop); 172 static int getrootptr(int *x, int *y); 173 static long getstate(Window w); 174 static int gettextprop(Window w, Atom atom, char *text, unsigned int size); 175 static void grabbuttons(Client *c, int focused); 176 static void grabkeys(void); 177 static void incnmaster(const Arg *arg); 178 static void keypress(XEvent *e); 179 static void killclient(const Arg *arg); 180 static void manage(Window w, XWindowAttributes *wa); 181 static void mappingnotify(XEvent *e); 182 static void maprequest(XEvent *e); 183 static void monocle(Monitor *m); 184 static void motionnotify(XEvent *e); 185 static void movemouse(const Arg *arg); 186 static Client *nexttiled(Client *c); 187 static void pop(Client *c); 188 static void propertynotify(XEvent *e); 189 static void quit(const Arg *arg); 190 static Monitor *recttomon(int x, int y, int w, int h); 191 static void resize(Client *c, int x, int y, int w, int h, int interact); 192 static void resizeclient(Client *c, int x, int y, int w, int h); 193 static void resizemouse(const Arg *arg); 194 static void restack(Monitor *m); 195 static void run(void); 196 static void scan(void); 197 static int sendevent(Client *c, Atom proto); 198 static void sendmon(Client *c, Monitor *m); 199 static void setclientstate(Client *c, long state); 200 static void setfocus(Client *c); 201 static void setfullscreen(Client *c, int fullscreen); 202 static void setlayout(const Arg *arg); 203 static void setmfact(const Arg *arg); 204 static void setup(void); 205 static void seturgent(Client *c, int urg); 206 static void showhide(Client *c); 207 static void spawn(const Arg *arg); 208 static void tag(const Arg *arg); 209 static void tagmon(const Arg *arg); 210 static void tile(Monitor *m); 211 static void togglebar(const Arg *arg); 212 static void togglefloating(const Arg *arg); 213 static void toggletag(const Arg *arg); 214 static void toggleview(const Arg *arg); 215 static void unfocus(Client *c, int setfocus); 216 static void unmanage(Client *c, int destroyed); 217 static void unmapnotify(XEvent *e); 218 static void updatebarpos(Monitor *m); 219 static void updatebars(void); 220 static void updateclientlist(void); 221 static int updategeom(void); 222 static void updatenumlockmask(void); 223 static void updatesizehints(Client *c); 224 static void updatestatus(void); 225 static void updatetitle(Client *c); 226 static void updatewindowtype(Client *c); 227 static void updatewmhints(Client *c); 228 static void view(const Arg *arg); 229 static Client *wintoclient(Window w); 230 static Monitor *wintomon(Window w); 231 static int xerror(Display *dpy, XErrorEvent *ee); 232 static int xerrordummy(Display *dpy, XErrorEvent *ee); 233 static int xerrorstart(Display *dpy, XErrorEvent *ee); 234 static void zoom(const Arg *arg); 235 236 /* variables */ 237 static const char broken[] = "broken"; 238 static char stext[256]; 239 static int screen; 240 static int sw, sh; /* X display screen geometry width, height */ 241 static int bh; /* bar height */ 242 static int lrpad; /* sum of left and right padding for text */ 243 static int (*xerrorxlib)(Display *, XErrorEvent *); 244 static unsigned int numlockmask = 0; 245 static void (*handler[LASTEvent]) (XEvent *) = { 246 [ButtonPress] = buttonpress, 247 [ClientMessage] = clientmessage, 248 [ConfigureRequest] = configurerequest, 249 [ConfigureNotify] = configurenotify, 250 [DestroyNotify] = destroynotify, 251 [EnterNotify] = enternotify, 252 [Expose] = expose, 253 [FocusIn] = focusin, 254 [KeyPress] = keypress, 255 [MappingNotify] = mappingnotify, 256 [MapRequest] = maprequest, 257 [MotionNotify] = motionnotify, 258 [PropertyNotify] = propertynotify, 259 [UnmapNotify] = unmapnotify 260 }; 261 static Atom wmatom[WMLast], netatom[NetLast]; 262 static int running = 1; 263 static Cur *cursor[CurLast]; 264 static Clr **scheme; 265 static Display *dpy; 266 static Drw *drw; 267 static Monitor *mons, *selmon; 268 static Window root, wmcheckwin; 269 270 /* configuration, allows nested code to access above variables */ 271 #include "config.h" 272 273 /* compile-time check if all tags fit into an unsigned int bit array. */ 274 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; 275 276 /* function implementations */ 277 void 278 applyrules(Client *c) 279 { 280 const char *class, *instance; 281 unsigned int i; 282 const Rule *r; 283 Monitor *m; 284 XClassHint ch = { NULL, NULL }; 285 286 /* rule matching */ 287 c->isfloating = 0; 288 c->tags = 0; 289 XGetClassHint(dpy, c->win, &ch); 290 class = ch.res_class ? ch.res_class : broken; 291 instance = ch.res_name ? ch.res_name : broken; 292 293 for (i = 0; i < LENGTH(rules); i++) { 294 r = &rules[i]; 295 if ((!r->title || strstr(c->name, r->title)) 296 && (!r->class || strstr(class, r->class)) 297 && (!r->instance || strstr(instance, r->instance))) 298 { 299 c->isfloating = r->isfloating; 300 c->tags |= r->tags; 301 for (m = mons; m && m->num != r->monitor; m = m->next); 302 if (m) 303 c->mon = m; 304 } 305 } 306 if (ch.res_class) 307 XFree(ch.res_class); 308 if (ch.res_name) 309 XFree(ch.res_name); 310 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags]; 311 } 312 313 int 314 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) 315 { 316 int baseismin; 317 Monitor *m = c->mon; 318 319 /* set minimum possible */ 320 *w = MAX(1, *w); 321 *h = MAX(1, *h); 322 if (interact) { 323 if (*x > sw) 324 *x = sw - WIDTH(c); 325 if (*y > sh) 326 *y = sh - HEIGHT(c); 327 if (*x + *w + 2 * c->bw < 0) 328 *x = 0; 329 if (*y + *h + 2 * c->bw < 0) 330 *y = 0; 331 } else { 332 if (*x >= m->wx + m->ww) 333 *x = m->wx + m->ww - WIDTH(c); 334 if (*y >= m->wy + m->wh) 335 *y = m->wy + m->wh - HEIGHT(c); 336 if (*x + *w + 2 * c->bw <= m->wx) 337 *x = m->wx; 338 if (*y + *h + 2 * c->bw <= m->wy) 339 *y = m->wy; 340 } 341 if (*h < bh) 342 *h = bh; 343 if (*w < bh) 344 *w = bh; 345 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { 346 if (!c->hintsvalid) 347 updatesizehints(c); 348 /* see last two sentences in ICCCM 4.1.2.3 */ 349 baseismin = c->basew == c->minw && c->baseh == c->minh; 350 if (!baseismin) { /* temporarily remove base dimensions */ 351 *w -= c->basew; 352 *h -= c->baseh; 353 } 354 /* adjust for aspect limits */ 355 if (c->mina > 0 && c->maxa > 0) { 356 if (c->maxa < (float)*w / *h) 357 *w = *h * c->maxa + 0.5; 358 else if (c->mina < (float)*h / *w) 359 *h = *w * c->mina + 0.5; 360 } 361 if (baseismin) { /* increment calculation requires this */ 362 *w -= c->basew; 363 *h -= c->baseh; 364 } 365 /* adjust for increment value */ 366 if (c->incw) 367 *w -= *w % c->incw; 368 if (c->inch) 369 *h -= *h % c->inch; 370 /* restore base dimensions */ 371 *w = MAX(*w + c->basew, c->minw); 372 *h = MAX(*h + c->baseh, c->minh); 373 if (c->maxw) 374 *w = MIN(*w, c->maxw); 375 if (c->maxh) 376 *h = MIN(*h, c->maxh); 377 } 378 return *x != c->x || *y != c->y || *w != c->w || *h != c->h; 379 } 380 381 void 382 arrange(Monitor *m) 383 { 384 if (m) 385 showhide(m->stack); 386 else for (m = mons; m; m = m->next) 387 showhide(m->stack); 388 if (m) { 389 arrangemon(m); 390 restack(m); 391 } else for (m = mons; m; m = m->next) 392 arrangemon(m); 393 } 394 395 void 396 arrangemon(Monitor *m) 397 { 398 snprintf(m->ltsymbol, sizeof(m->ltsymbol), "%s", m->lt[m->sellt]->symbol); 399 if (m->lt[m->sellt]->arrange) 400 m->lt[m->sellt]->arrange(m); 401 } 402 403 void 404 attach(Client *c) 405 { 406 c->next = c->mon->clients; 407 c->mon->clients = c; 408 } 409 410 void 411 attachstack(Client *c) 412 { 413 c->snext = c->mon->stack; 414 c->mon->stack = c; 415 } 416 417 void 418 buttonpress(XEvent *e) 419 { 420 unsigned int i, x, click; 421 Arg arg = {0}; 422 Client *c; 423 Monitor *m; 424 XButtonPressedEvent *ev = &e->xbutton; 425 426 click = ClkRootWin; 427 /* focus monitor if necessary */ 428 if ((m = wintomon(ev->window)) && m != selmon) { 429 unfocus(selmon->sel, 1); 430 selmon = m; 431 focus(NULL); 432 } 433 if (ev->window == selmon->barwin) { 434 i = x = 0; 435 do 436 x += TEXTW(tags[i]); 437 while (ev->x >= x && ++i < LENGTH(tags)); 438 if (i < LENGTH(tags)) { 439 click = ClkTagBar; 440 arg.ui = 1 << i; 441 } else if (ev->x < x + TEXTW(selmon->ltsymbol)) 442 click = ClkLtSymbol; 443 else if (ev->x > selmon->ww - (int)TEXTW(stext) + lrpad - 2) 444 click = ClkStatusText; 445 else 446 click = ClkWinTitle; 447 } else if ((c = wintoclient(ev->window))) { 448 focus(c); 449 restack(selmon); 450 XAllowEvents(dpy, ReplayPointer, CurrentTime); 451 click = ClkClientWin; 452 } 453 for (i = 0; i < LENGTH(buttons); i++) 454 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button 455 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) 456 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); 457 } 458 459 void 460 checkotherwm(void) 461 { 462 xerrorxlib = XSetErrorHandler(xerrorstart); 463 /* this causes an error if some other window manager is running */ 464 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); 465 XSync(dpy, False); 466 XSetErrorHandler(xerror); 467 XSync(dpy, False); 468 } 469 470 void 471 cleanup(void) 472 { 473 Arg a = {.ui = ~0}; 474 Layout foo = { "", NULL }; 475 Monitor *m; 476 size_t i; 477 478 view(&a); 479 selmon->lt[selmon->sellt] = &foo; 480 for (m = mons; m; m = m->next) 481 while (m->stack) 482 unmanage(m->stack, 0); 483 XUngrabKey(dpy, AnyKey, AnyModifier, root); 484 while (mons) 485 cleanupmon(mons); 486 for (i = 0; i < CurLast; i++) 487 drw_cur_free(drw, cursor[i]); 488 for (i = 0; i < LENGTH(colors); i++) 489 drw_scm_free(drw, scheme[i], 3); 490 free(scheme); 491 XDestroyWindow(dpy, wmcheckwin); 492 drw_free(drw); 493 XSync(dpy, False); 494 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); 495 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 496 } 497 498 void 499 cleanupmon(Monitor *mon) 500 { 501 Monitor *m; 502 503 if (mon == mons) 504 mons = mons->next; 505 else { 506 for (m = mons; m && m->next != mon; m = m->next); 507 m->next = mon->next; 508 } 509 XUnmapWindow(dpy, mon->barwin); 510 XDestroyWindow(dpy, mon->barwin); 511 free(mon); 512 } 513 514 void 515 clientmessage(XEvent *e) 516 { 517 XClientMessageEvent *cme = &e->xclient; 518 Client *c = wintoclient(cme->window); 519 520 if (!c) 521 return; 522 if (cme->message_type == netatom[NetWMState]) { 523 if (cme->data.l[1] == netatom[NetWMFullscreen] 524 || cme->data.l[2] == netatom[NetWMFullscreen]) 525 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */ 526 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen))); 527 } else if (cme->message_type == netatom[NetActiveWindow]) { 528 if (c != selmon->sel && !c->isurgent) 529 seturgent(c, 1); 530 } 531 } 532 533 void 534 configure(Client *c) 535 { 536 XConfigureEvent ce; 537 538 ce.type = ConfigureNotify; 539 ce.display = dpy; 540 ce.event = c->win; 541 ce.window = c->win; 542 ce.x = c->x; 543 ce.y = c->y; 544 ce.width = c->w; 545 ce.height = c->h; 546 ce.border_width = c->bw; 547 ce.above = None; 548 ce.override_redirect = False; 549 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); 550 } 551 552 void 553 configurenotify(XEvent *e) 554 { 555 Monitor *m; 556 Client *c; 557 XConfigureEvent *ev = &e->xconfigure; 558 int dirty; 559 560 /* TODO: updategeom handling sucks, needs to be simplified */ 561 if (ev->window == root) { 562 if (ev->width <= 0 || ev->height <= 0) 563 return; 564 565 dirty = (sw != ev->width || sh != ev->height); 566 sw = ev->width; 567 sh = ev->height; 568 if (updategeom() || dirty) { 569 drw_resize(drw, sw, bh); 570 updatebars(); 571 for (m = mons; m; m = m->next) { 572 for (c = m->clients; c; c = c->next) 573 if (c->isfullscreen) 574 resizeclient(c, m->mx, m->my, m->mw, m->mh); 575 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); 576 } 577 focus(NULL); 578 arrange(NULL); 579 } 580 } 581 } 582 583 void 584 configurerequest(XEvent *e) 585 { 586 Client *c; 587 Monitor *m; 588 XConfigureRequestEvent *ev = &e->xconfigurerequest; 589 XWindowChanges wc; 590 591 if ((c = wintoclient(ev->window))) { 592 if (ev->value_mask & CWBorderWidth) 593 c->bw = ev->border_width; 594 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) { 595 m = c->mon; 596 if (ev->value_mask & CWX) { 597 c->oldx = c->x; 598 c->x = m->mx + ev->x; 599 } 600 if (ev->value_mask & CWY) { 601 c->oldy = c->y; 602 c->y = m->my + ev->y; 603 } 604 if (ev->value_mask & CWWidth) { 605 c->oldw = c->w; 606 c->w = ev->width; 607 } 608 if (ev->value_mask & CWHeight) { 609 c->oldh = c->h; 610 c->h = ev->height; 611 } 612 if ((c->x + c->w) > m->mx + m->mw && c->isfloating) 613 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */ 614 if ((c->y + c->h) > m->my + m->mh && c->isfloating) 615 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */ 616 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight))) 617 configure(c); 618 if (ISVISIBLE(c)) 619 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 620 } else 621 configure(c); 622 } else { 623 wc.x = ev->x; 624 wc.y = ev->y; 625 wc.width = ev->width; 626 wc.height = ev->height; 627 wc.border_width = ev->border_width; 628 wc.sibling = ev->above; 629 wc.stack_mode = ev->detail; 630 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); 631 } 632 XSync(dpy, False); 633 } 634 635 Monitor * 636 createmon(void) 637 { 638 Monitor *m; 639 640 m = ecalloc(1, sizeof(Monitor)); 641 m->tagset[0] = m->tagset[1] = 1; 642 m->mfact = mfact; 643 m->nmaster = nmaster; 644 m->showbar = showbar; 645 m->topbar = topbar; 646 m->lt[0] = &layouts[0]; 647 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 648 snprintf(m->ltsymbol, sizeof(m->ltsymbol), "%s", layouts[0].symbol); 649 return m; 650 } 651 652 void 653 destroynotify(XEvent *e) 654 { 655 Client *c; 656 XDestroyWindowEvent *ev = &e->xdestroywindow; 657 658 if ((c = wintoclient(ev->window))) 659 unmanage(c, 1); 660 } 661 662 void 663 detach(Client *c) 664 { 665 Client **tc; 666 667 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next); 668 *tc = c->next; 669 } 670 671 void 672 detachstack(Client *c) 673 { 674 Client **tc, *t; 675 676 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext); 677 *tc = c->snext; 678 679 if (c == c->mon->sel) { 680 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext); 681 c->mon->sel = t; 682 } 683 } 684 685 Monitor * 686 dirtomon(int dir) 687 { 688 Monitor *m = NULL; 689 690 if (dir > 0) { 691 if (!(m = selmon->next)) 692 m = mons; 693 } else if (selmon == mons) 694 for (m = mons; m->next; m = m->next); 695 else 696 for (m = mons; m->next != selmon; m = m->next); 697 return m; 698 } 699 700 void 701 drawbar(Monitor *m) 702 { 703 int x, w, tw = 0; 704 int boxs = drw->fonts->h / 9; 705 int boxw = drw->fonts->h / 6 + 2; 706 unsigned int i, occ = 0, urg = 0; 707 Client *c; 708 709 if (!m->showbar) 710 return; 711 712 /* draw status first so it can be overdrawn by tags later */ 713 if (m == selmon) { /* status is only drawn on selected monitor */ 714 drw_setscheme(drw, scheme[SchemeNorm]); 715 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 716 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0); 717 } 718 719 for (c = m->clients; c; c = c->next) { 720 occ |= c->tags; 721 if (c->isurgent) 722 urg |= c->tags; 723 } 724 x = 0; 725 for (i = 0; i < LENGTH(tags); i++) { 726 w = TEXTW(tags[i]); 727 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); 728 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 729 if (occ & 1 << i) 730 drw_rect(drw, x + boxs, boxs, boxw, boxw, 731 m == selmon && selmon->sel && selmon->sel->tags & 1 << i, 732 urg & 1 << i); 733 x += w; 734 } 735 w = TEXTW(m->ltsymbol); 736 drw_setscheme(drw, scheme[SchemeNorm]); 737 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 738 739 if ((w = m->ww - tw - x) > bh) { 740 if (m->sel) { 741 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); 742 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 743 if (m->sel->isfloating) 744 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 745 } else { 746 drw_setscheme(drw, scheme[SchemeNorm]); 747 drw_rect(drw, x, 0, w, bh, 1, 1); 748 } 749 } 750 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 751 } 752 753 void 754 drawbars(void) 755 { 756 Monitor *m; 757 758 for (m = mons; m; m = m->next) 759 drawbar(m); 760 } 761 762 void 763 enternotify(XEvent *e) 764 { 765 Client *c; 766 Monitor *m; 767 XCrossingEvent *ev = &e->xcrossing; 768 769 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 770 return; 771 c = wintoclient(ev->window); 772 m = c ? c->mon : wintomon(ev->window); 773 if (m != selmon) { 774 unfocus(selmon->sel, 1); 775 selmon = m; 776 } else if (!c || c == selmon->sel) 777 return; 778 focus(c); 779 } 780 781 void 782 expose(XEvent *e) 783 { 784 Monitor *m; 785 XExposeEvent *ev = &e->xexpose; 786 787 if (ev->count == 0 && (m = wintomon(ev->window))) 788 drawbar(m); 789 } 790 791 void 792 focus(Client *c) 793 { 794 if (!c || !ISVISIBLE(c)) 795 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 796 if (selmon->sel && selmon->sel != c) 797 unfocus(selmon->sel, 0); 798 if (c) { 799 if (c->mon != selmon) 800 selmon = c->mon; 801 if (c->isurgent) 802 seturgent(c, 0); 803 detachstack(c); 804 attachstack(c); 805 grabbuttons(c, 1); 806 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 807 setfocus(c); 808 } else { 809 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 810 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 811 } 812 selmon->sel = c; 813 drawbars(); 814 } 815 816 /* there are some broken focus acquiring clients needing extra handling */ 817 void 818 focusin(XEvent *e) 819 { 820 XFocusChangeEvent *ev = &e->xfocus; 821 822 if (selmon->sel && ev->window != selmon->sel->win) 823 setfocus(selmon->sel); 824 } 825 826 void 827 focusmon(const Arg *arg) 828 { 829 Monitor *m; 830 831 if (!mons->next) 832 return; 833 if ((m = dirtomon(arg->i)) == selmon) 834 return; 835 unfocus(selmon->sel, 0); 836 selmon = m; 837 focus(NULL); 838 } 839 840 void 841 focusstack(const Arg *arg) 842 { 843 Client *c = NULL, *i; 844 845 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen)) 846 return; 847 if (arg->i > 0) { 848 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 849 if (!c) 850 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 851 } else { 852 for (i = selmon->clients; i != selmon->sel; i = i->next) 853 if (ISVISIBLE(i)) 854 c = i; 855 if (!c) 856 for (; i; i = i->next) 857 if (ISVISIBLE(i)) 858 c = i; 859 } 860 if (c) { 861 focus(c); 862 restack(selmon); 863 } 864 } 865 866 Atom 867 getatomprop(Client *c, Atom prop) 868 { 869 int format; 870 unsigned long nitems, dl; 871 unsigned char *p = NULL; 872 Atom da, atom = None; 873 874 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 875 &da, &format, &nitems, &dl, &p) == Success && p) { 876 if (nitems > 0 && format == 32) 877 atom = *(long *)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, &p) != Success) 904 return -1; 905 if (n != 0 && format == 32) 906 result = *(long *)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 snprintf(text, size, "%s", (char *)name.value); 925 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success) { 926 if (n > 0 && *list) 927 snprintf(text, size, "%s", *list); 928 XFreeStringList(list); 929 } 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 / refreshrate)) 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 void 1225 propertynotify(XEvent *e) 1226 { 1227 Client *c; 1228 Window trans; 1229 XPropertyEvent *ev = &e->xproperty; 1230 1231 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1232 updatestatus(); 1233 else if (ev->state == PropertyDelete) 1234 return; /* ignore */ 1235 else if ((c = wintoclient(ev->window))) { 1236 switch(ev->atom) { 1237 default: break; 1238 case XA_WM_TRANSIENT_FOR: 1239 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1240 (c->isfloating = (wintoclient(trans)) != NULL)) 1241 arrange(c->mon); 1242 break; 1243 case XA_WM_NORMAL_HINTS: 1244 c->hintsvalid = 0; 1245 break; 1246 case XA_WM_HINTS: 1247 updatewmhints(c); 1248 drawbars(); 1249 break; 1250 } 1251 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1252 updatetitle(c); 1253 if (c == c->mon->sel) 1254 drawbar(c->mon); 1255 } 1256 if (ev->atom == netatom[NetWMWindowType]) 1257 updatewindowtype(c); 1258 } 1259 } 1260 1261 void 1262 quit(const Arg *arg) 1263 { 1264 running = 0; 1265 } 1266 1267 Monitor * 1268 recttomon(int x, int y, int w, int h) 1269 { 1270 Monitor *m, *r = selmon; 1271 int a, area = 0; 1272 1273 for (m = mons; m; m = m->next) 1274 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1275 area = a; 1276 r = m; 1277 } 1278 return r; 1279 } 1280 1281 void 1282 resize(Client *c, int x, int y, int w, int h, int interact) 1283 { 1284 if (applysizehints(c, &x, &y, &w, &h, interact)) 1285 resizeclient(c, x, y, w, h); 1286 } 1287 1288 void 1289 resizeclient(Client *c, int x, int y, int w, int h) 1290 { 1291 XWindowChanges wc; 1292 1293 c->oldx = c->x; c->x = wc.x = x; 1294 c->oldy = c->y; c->y = wc.y = y; 1295 c->oldw = c->w; c->w = wc.width = w; 1296 c->oldh = c->h; c->h = wc.height = h; 1297 wc.border_width = c->bw; 1298 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1299 configure(c); 1300 XSync(dpy, False); 1301 } 1302 1303 void 1304 resizemouse(const Arg *arg) 1305 { 1306 int ocx, ocy, nw, nh; 1307 Client *c; 1308 Monitor *m; 1309 XEvent ev; 1310 Time lasttime = 0; 1311 1312 if (!(c = selmon->sel)) 1313 return; 1314 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1315 return; 1316 restack(selmon); 1317 ocx = c->x; 1318 ocy = c->y; 1319 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1320 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1321 return; 1322 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1323 do { 1324 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1325 switch(ev.type) { 1326 case ConfigureRequest: 1327 case Expose: 1328 case MapRequest: 1329 handler[ev.type](&ev); 1330 break; 1331 case MotionNotify: 1332 if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate)) 1333 continue; 1334 lasttime = ev.xmotion.time; 1335 1336 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1337 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1338 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1339 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1340 { 1341 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1342 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1343 togglefloating(NULL); 1344 } 1345 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1346 resize(c, c->x, c->y, nw, nh, 1); 1347 break; 1348 } 1349 } while (ev.type != ButtonRelease); 1350 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1351 XUngrabPointer(dpy, CurrentTime); 1352 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1353 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1354 sendmon(c, m); 1355 selmon = m; 1356 focus(NULL); 1357 } 1358 } 1359 1360 void 1361 restack(Monitor *m) 1362 { 1363 Client *c; 1364 XEvent ev; 1365 XWindowChanges wc; 1366 1367 drawbar(m); 1368 if (!m->sel) 1369 return; 1370 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1371 XRaiseWindow(dpy, m->sel->win); 1372 if (m->lt[m->sellt]->arrange) { 1373 wc.stack_mode = Below; 1374 wc.sibling = m->barwin; 1375 for (c = m->stack; c; c = c->snext) 1376 if (!c->isfloating && ISVISIBLE(c)) { 1377 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1378 wc.sibling = c->win; 1379 } 1380 } 1381 XSync(dpy, False); 1382 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1383 } 1384 1385 void 1386 run(void) 1387 { 1388 XEvent ev; 1389 /* main event loop */ 1390 XSync(dpy, False); 1391 while (running && !XNextEvent(dpy, &ev)) 1392 if (handler[ev.type]) 1393 handler[ev.type](&ev); /* call handler */ 1394 } 1395 1396 void 1397 scan(void) 1398 { 1399 unsigned int i, num; 1400 Window d1, d2, *wins = NULL; 1401 XWindowAttributes wa; 1402 1403 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1404 for (i = 0; i < num; i++) { 1405 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1406 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1407 continue; 1408 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1409 manage(wins[i], &wa); 1410 } 1411 for (i = 0; i < num; i++) { /* now the transients */ 1412 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1413 continue; 1414 if (XGetTransientForHint(dpy, wins[i], &d1) 1415 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1416 manage(wins[i], &wa); 1417 } 1418 if (wins) 1419 XFree(wins); 1420 } 1421 } 1422 1423 void 1424 sendmon(Client *c, Monitor *m) 1425 { 1426 if (c->mon == m) 1427 return; 1428 unfocus(c, 1); 1429 detach(c); 1430 detachstack(c); 1431 c->mon = m; 1432 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1433 attach(c); 1434 attachstack(c); 1435 if (c->isfullscreen) 1436 resizeclient(c, m->mx, m->my, m->mw, m->mh); 1437 focus(NULL); 1438 arrange(NULL); 1439 } 1440 1441 void 1442 setclientstate(Client *c, long state) 1443 { 1444 long data[] = { state, None }; 1445 1446 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1447 PropModeReplace, (unsigned char *)data, 2); 1448 } 1449 1450 int 1451 sendevent(Client *c, Atom proto) 1452 { 1453 int n; 1454 Atom *protocols; 1455 int exists = 0; 1456 XEvent ev; 1457 1458 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1459 while (!exists && n--) 1460 exists = protocols[n] == proto; 1461 XFree(protocols); 1462 } 1463 if (exists) { 1464 ev.type = ClientMessage; 1465 ev.xclient.window = c->win; 1466 ev.xclient.message_type = wmatom[WMProtocols]; 1467 ev.xclient.format = 32; 1468 ev.xclient.data.l[0] = proto; 1469 ev.xclient.data.l[1] = CurrentTime; 1470 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1471 } 1472 return exists; 1473 } 1474 1475 void 1476 setfocus(Client *c) 1477 { 1478 if (!c->neverfocus) 1479 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1480 XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW, 32, 1481 PropModeReplace, (unsigned char *)&c->win, 1); 1482 sendevent(c, wmatom[WMTakeFocus]); 1483 } 1484 1485 void 1486 setfullscreen(Client *c, int fullscreen) 1487 { 1488 if (fullscreen && !c->isfullscreen) { 1489 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1490 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1491 c->isfullscreen = 1; 1492 c->oldstate = c->isfloating; 1493 c->oldbw = c->bw; 1494 c->bw = 0; 1495 c->isfloating = 1; 1496 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1497 XRaiseWindow(dpy, c->win); 1498 } else if (!fullscreen && c->isfullscreen){ 1499 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1500 PropModeReplace, (unsigned char*)0, 0); 1501 c->isfullscreen = 0; 1502 c->isfloating = c->oldstate; 1503 c->bw = c->oldbw; 1504 c->x = c->oldx; 1505 c->y = c->oldy; 1506 c->w = c->oldw; 1507 c->h = c->oldh; 1508 resizeclient(c, c->x, c->y, c->w, c->h); 1509 arrange(c->mon); 1510 } 1511 } 1512 1513 void 1514 setlayout(const Arg *arg) 1515 { 1516 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1517 selmon->sellt ^= 1; 1518 if (arg && arg->v) 1519 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1520 snprintf(selmon->ltsymbol, sizeof(selmon->ltsymbol), "%s", selmon->lt[selmon->sellt]->symbol); 1521 if (selmon->sel) 1522 arrange(selmon); 1523 else 1524 drawbar(selmon); 1525 } 1526 1527 /* arg > 1.0 will set mfact absolutely */ 1528 void 1529 setmfact(const Arg *arg) 1530 { 1531 float f; 1532 1533 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1534 return; 1535 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1536 if (f < 0.05 || f > 0.95) 1537 return; 1538 selmon->mfact = f; 1539 arrange(selmon); 1540 } 1541 1542 void 1543 setup(void) 1544 { 1545 int i; 1546 XSetWindowAttributes wa; 1547 Atom utf8string; 1548 struct sigaction sa; 1549 1550 /* do not transform children into zombies when they terminate */ 1551 sigemptyset(&sa.sa_mask); 1552 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART; 1553 sa.sa_handler = SIG_IGN; 1554 sigaction(SIGCHLD, &sa, NULL); 1555 1556 /* clean up any zombies (inherited from .xinitrc etc) immediately */ 1557 while (waitpid(-1, NULL, WNOHANG) > 0); 1558 1559 /* init screen */ 1560 screen = DefaultScreen(dpy); 1561 sw = DisplayWidth(dpy, screen); 1562 sh = DisplayHeight(dpy, screen); 1563 root = RootWindow(dpy, screen); 1564 drw = drw_create(dpy, screen, root, sw, sh); 1565 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1566 die("no fonts could be loaded."); 1567 lrpad = drw->fonts->h; 1568 bh = drw->fonts->h + 2; 1569 updategeom(); 1570 /* init atoms */ 1571 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1572 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1573 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1574 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1575 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1576 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1577 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1578 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1579 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1580 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1581 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1582 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1583 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1584 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1585 /* init cursors */ 1586 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1587 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1588 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1589 /* init appearance */ 1590 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1591 for (i = 0; i < LENGTH(colors); i++) 1592 scheme[i] = drw_scm_create(drw, colors[i], 3); 1593 /* init bars */ 1594 updatebars(); 1595 updatestatus(); 1596 /* supporting window for NetWMCheck */ 1597 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1598 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1599 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1600 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1601 PropModeReplace, (unsigned char *) "dwm", 3); 1602 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1603 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1604 /* EWMH support per view */ 1605 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1606 PropModeReplace, (unsigned char *) netatom, NetLast); 1607 XDeleteProperty(dpy, root, netatom[NetClientList]); 1608 /* select events */ 1609 wa.cursor = cursor[CurNormal]->cursor; 1610 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1611 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1612 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1613 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1614 XSelectInput(dpy, root, wa.event_mask); 1615 grabkeys(); 1616 focus(NULL); 1617 } 1618 1619 void 1620 seturgent(Client *c, int urg) 1621 { 1622 XWMHints *wmh; 1623 1624 c->isurgent = urg; 1625 if (!(wmh = XGetWMHints(dpy, c->win))) 1626 return; 1627 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1628 XSetWMHints(dpy, c->win, wmh); 1629 XFree(wmh); 1630 } 1631 1632 void 1633 showhide(Client *c) 1634 { 1635 if (!c) 1636 return; 1637 if (ISVISIBLE(c)) { 1638 /* show clients top down */ 1639 XMoveWindow(dpy, c->win, c->x, c->y); 1640 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen) 1641 resize(c, c->x, c->y, c->w, c->h, 0); 1642 showhide(c->snext); 1643 } else { 1644 /* hide clients bottom up */ 1645 showhide(c->snext); 1646 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1647 } 1648 } 1649 1650 void 1651 spawn(const Arg *arg) 1652 { 1653 struct sigaction sa; 1654 pid_t pid; 1655 1656 if (arg->v == dmenucmd) 1657 snprintf(dmenumon, sizeof(dmenumon), "%d", selmon->num); 1658 1659 if ((pid = fork()) == -1) { 1660 fprintf(stderr, "dwm: fork failed: %s\n", strerror(errno)); 1661 return; 1662 } 1663 if (pid == 0) { 1664 if (dpy) 1665 close(ConnectionNumber(dpy)); 1666 setsid(); 1667 1668 sigemptyset(&sa.sa_mask); 1669 sa.sa_flags = 0; 1670 sa.sa_handler = SIG_DFL; 1671 sigaction(SIGCHLD, &sa, NULL); 1672 1673 execvp(((char **)arg->v)[0], (char **)arg->v); 1674 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]); 1675 } 1676 } 1677 1678 void 1679 tag(const Arg *arg) 1680 { 1681 if (selmon->sel && arg->ui & TAGMASK) { 1682 selmon->sel->tags = arg->ui & TAGMASK; 1683 focus(NULL); 1684 arrange(selmon); 1685 } 1686 } 1687 1688 void 1689 tagmon(const Arg *arg) 1690 { 1691 if (!selmon->sel || !mons->next) 1692 return; 1693 sendmon(selmon->sel, dirtomon(arg->i)); 1694 } 1695 1696 void 1697 tile(Monitor *m) 1698 { 1699 unsigned int i, n, h, mw, my, ty; 1700 Client *c; 1701 1702 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++); 1703 if (n == 0) 1704 return; 1705 1706 if (n > m->nmaster) 1707 mw = m->nmaster ? m->ww * m->mfact : 0; 1708 else 1709 mw = m->ww; 1710 for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) 1711 if (i < m->nmaster) { 1712 h = (m->wh - my) / (MIN(n, m->nmaster) - i); 1713 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0); 1714 if (my + HEIGHT(c) < m->wh) 1715 my += HEIGHT(c); 1716 } else { 1717 h = (m->wh - ty) / (n - i); 1718 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0); 1719 if (ty + HEIGHT(c) < m->wh) 1720 ty += HEIGHT(c); 1721 } 1722 } 1723 1724 void 1725 togglebar(const Arg *arg) 1726 { 1727 selmon->showbar = !selmon->showbar; 1728 updatebarpos(selmon); 1729 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1730 arrange(selmon); 1731 } 1732 1733 void 1734 togglefloating(const Arg *arg) 1735 { 1736 if (!selmon->sel) 1737 return; 1738 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */ 1739 return; 1740 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed; 1741 if (selmon->sel->isfloating) 1742 resize(selmon->sel, selmon->sel->x, selmon->sel->y, 1743 selmon->sel->w, selmon->sel->h, 0); 1744 arrange(selmon); 1745 } 1746 1747 void 1748 toggletag(const Arg *arg) 1749 { 1750 unsigned int newtags; 1751 1752 if (!selmon->sel) 1753 return; 1754 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1755 if (newtags) { 1756 selmon->sel->tags = newtags; 1757 focus(NULL); 1758 arrange(selmon); 1759 } 1760 } 1761 1762 void 1763 toggleview(const Arg *arg) 1764 { 1765 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1766 1767 if (newtagset) { 1768 selmon->tagset[selmon->seltags] = newtagset; 1769 focus(NULL); 1770 arrange(selmon); 1771 } 1772 } 1773 1774 void 1775 unfocus(Client *c, int setfocus) 1776 { 1777 if (!c) 1778 return; 1779 grabbuttons(c, 0); 1780 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1781 if (setfocus) { 1782 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1783 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1784 } 1785 } 1786 1787 void 1788 unmanage(Client *c, int destroyed) 1789 { 1790 Monitor *m = c->mon; 1791 XWindowChanges wc; 1792 1793 detach(c); 1794 detachstack(c); 1795 if (!destroyed) { 1796 wc.border_width = c->oldbw; 1797 XGrabServer(dpy); /* avoid race conditions */ 1798 XSetErrorHandler(xerrordummy); 1799 XSelectInput(dpy, c->win, NoEventMask); 1800 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1801 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1802 setclientstate(c, WithdrawnState); 1803 XSync(dpy, False); 1804 XSetErrorHandler(xerror); 1805 XUngrabServer(dpy); 1806 } 1807 free(c); 1808 focus(NULL); 1809 updateclientlist(); 1810 arrange(m); 1811 } 1812 1813 void 1814 unmapnotify(XEvent *e) 1815 { 1816 Client *c; 1817 XUnmapEvent *ev = &e->xunmap; 1818 1819 if ((c = wintoclient(ev->window))) { 1820 if (ev->send_event) 1821 setclientstate(c, WithdrawnState); 1822 else 1823 unmanage(c, 0); 1824 } 1825 } 1826 1827 void 1828 updatebars(void) 1829 { 1830 Monitor *m; 1831 XSetWindowAttributes wa = { 1832 .override_redirect = True, 1833 .background_pixmap = ParentRelative, 1834 .event_mask = ButtonPressMask|ExposureMask 1835 }; 1836 XClassHint ch = {"dwm", "dwm"}; 1837 for (m = mons; m; m = m->next) { 1838 if (m->barwin) 1839 continue; 1840 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1841 CopyFromParent, DefaultVisual(dpy, screen), 1842 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1843 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1844 XMapRaised(dpy, m->barwin); 1845 XSetClassHint(dpy, m->barwin, &ch); 1846 } 1847 } 1848 1849 void 1850 updatebarpos(Monitor *m) 1851 { 1852 m->wy = m->my; 1853 m->wh = m->mh; 1854 if (m->showbar) { 1855 m->wh -= bh; 1856 m->by = m->topbar ? m->wy : m->wy + m->wh; 1857 m->wy = m->topbar ? m->wy + bh : m->wy; 1858 } else 1859 m->by = -bh; 1860 } 1861 1862 void 1863 updateclientlist(void) 1864 { 1865 Client *c; 1866 Monitor *m; 1867 1868 XDeleteProperty(dpy, root, netatom[NetClientList]); 1869 for (m = mons; m; m = m->next) 1870 for (c = m->clients; c; c = c->next) 1871 XChangeProperty(dpy, root, netatom[NetClientList], 1872 XA_WINDOW, 32, PropModeAppend, 1873 (unsigned char *) &(c->win), 1); 1874 } 1875 1876 int 1877 updategeom(void) 1878 { 1879 int dirty = 0; 1880 1881 #ifdef XINERAMA 1882 if (XineramaIsActive(dpy)) { 1883 int i, j, n, nn; 1884 Client *c; 1885 Monitor *m; 1886 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1887 XineramaScreenInfo *unique = NULL; 1888 1889 for (n = 0, m = mons; m; m = m->next, n++); 1890 /* only consider unique geometries as separate screens */ 1891 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1892 for (i = 0, j = 0; i < nn; i++) 1893 if (isuniquegeom(unique, j, &info[i])) 1894 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1895 XFree(info); 1896 nn = j; 1897 1898 /* new monitors if nn > n */ 1899 for (i = n; i < nn; i++) { 1900 for (m = mons; m && m->next; m = m->next); 1901 if (m) 1902 m->next = createmon(); 1903 else 1904 mons = createmon(); 1905 } 1906 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 1907 if (i >= n 1908 || unique[i].x_org != m->mx || unique[i].y_org != m->my 1909 || unique[i].width != m->mw || unique[i].height != m->mh) 1910 { 1911 dirty = 1; 1912 m->num = i; 1913 m->mx = m->wx = unique[i].x_org; 1914 m->my = m->wy = unique[i].y_org; 1915 m->mw = m->ww = unique[i].width; 1916 m->mh = m->wh = unique[i].height; 1917 updatebarpos(m); 1918 } 1919 /* removed monitors if n > nn */ 1920 for (i = nn; i < n; i++) { 1921 for (m = mons; m && m->next; m = m->next); 1922 while ((c = m->clients)) { 1923 dirty = 1; 1924 m->clients = c->next; 1925 detachstack(c); 1926 c->mon = mons; 1927 attach(c); 1928 attachstack(c); 1929 } 1930 if (m == selmon) 1931 selmon = mons; 1932 cleanupmon(m); 1933 } 1934 free(unique); 1935 } else 1936 #endif /* XINERAMA */ 1937 { /* default monitor setup */ 1938 if (!mons) 1939 mons = createmon(); 1940 if (mons->mw != sw || mons->mh != sh) { 1941 dirty = 1; 1942 mons->mw = mons->ww = sw; 1943 mons->mh = mons->wh = sh; 1944 updatebarpos(mons); 1945 } 1946 } 1947 if (dirty) { 1948 selmon = mons; 1949 selmon = wintomon(root); 1950 } 1951 return dirty; 1952 } 1953 1954 void 1955 updatenumlockmask(void) 1956 { 1957 unsigned int i, j; 1958 XModifierKeymap *modmap; 1959 1960 numlockmask = 0; 1961 if (!(modmap = XGetModifierMapping(dpy))) 1962 return; 1963 for (i = 0; i < 8; i++) 1964 for (j = 0; j < modmap->max_keypermod; j++) 1965 if (modmap->modifiermap[i * modmap->max_keypermod + j] 1966 == XKeysymToKeycode(dpy, XK_Num_Lock)) 1967 numlockmask = (1 << i); 1968 XFreeModifiermap(modmap); 1969 } 1970 1971 void 1972 updatesizehints(Client *c) 1973 { 1974 long msize; 1975 XSizeHints size; 1976 1977 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 1978 /* size is uninitialized, ensure that size.flags aren't used */ 1979 size.flags = PSize; 1980 if (size.flags & PBaseSize) { 1981 c->basew = MAX(0, size.base_width); 1982 c->baseh = MAX(0, size.base_height); 1983 } else if (size.flags & PMinSize) { 1984 c->basew = MAX(0, size.min_width); 1985 c->baseh = MAX(0, size.min_height); 1986 } else 1987 c->basew = c->baseh = 0; 1988 if (size.flags & PResizeInc) { 1989 c->incw = MAX(0, size.width_inc); 1990 c->inch = MAX(0, size.height_inc); 1991 } else 1992 c->incw = c->inch = 0; 1993 if (size.flags & PMaxSize) { 1994 c->maxw = MAX(0, size.max_width); 1995 c->maxh = MAX(0, size.max_height); 1996 } else 1997 c->maxw = c->maxh = 0; 1998 if (size.flags & PMinSize) { 1999 c->minw = MAX(0, size.min_width); 2000 c->minh = MAX(0, size.min_height); 2001 } else if (size.flags & PBaseSize) { 2002 c->minw = MAX(0, size.base_width); 2003 c->minh = MAX(0, size.base_height); 2004 } else 2005 c->minw = c->minh = 0; 2006 if ((size.flags & PAspect) && size.min_aspect.x > 0 && size.max_aspect.y > 0) { 2007 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 2008 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 2009 } else 2010 c->maxa = c->mina = 0.0; 2011 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 2012 c->hintsvalid = 1; 2013 } 2014 2015 void 2016 updatestatus(void) 2017 { 2018 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 2019 strcpy(stext, "dwm-"VERSION); 2020 drawbar(selmon); 2021 } 2022 2023 void 2024 updatetitle(Client *c) 2025 { 2026 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 2027 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 2028 if (c->name[0] == '\0') /* hack to mark broken clients */ 2029 strcpy(c->name, broken); 2030 } 2031 2032 void 2033 updatewindowtype(Client *c) 2034 { 2035 Atom state = getatomprop(c, netatom[NetWMState]); 2036 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2037 2038 if (state == netatom[NetWMFullscreen]) 2039 setfullscreen(c, 1); 2040 if (wtype == netatom[NetWMWindowTypeDialog]) 2041 c->isfloating = 1; 2042 } 2043 2044 void 2045 updatewmhints(Client *c) 2046 { 2047 XWMHints *wmh; 2048 2049 if ((wmh = XGetWMHints(dpy, c->win))) { 2050 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2051 wmh->flags &= ~XUrgencyHint; 2052 XSetWMHints(dpy, c->win, wmh); 2053 } else 2054 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2055 if (wmh->flags & InputHint) 2056 c->neverfocus = !wmh->input; 2057 else 2058 c->neverfocus = 0; 2059 XFree(wmh); 2060 } 2061 } 2062 2063 void 2064 view(const Arg *arg) 2065 { 2066 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2067 return; 2068 selmon->seltags ^= 1; /* toggle sel tagset */ 2069 if (arg->ui & TAGMASK) 2070 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2071 focus(NULL); 2072 arrange(selmon); 2073 } 2074 2075 Client * 2076 wintoclient(Window w) 2077 { 2078 Client *c; 2079 Monitor *m; 2080 2081 for (m = mons; m; m = m->next) 2082 for (c = m->clients; c; c = c->next) 2083 if (c->win == w) 2084 return c; 2085 return NULL; 2086 } 2087 2088 Monitor * 2089 wintomon(Window w) 2090 { 2091 int x, y; 2092 Client *c; 2093 Monitor *m; 2094 2095 if (w == root && getrootptr(&x, &y)) 2096 return recttomon(x, y, 1, 1); 2097 for (m = mons; m; m = m->next) 2098 if (w == m->barwin) 2099 return m; 2100 if ((c = wintoclient(w))) 2101 return c->mon; 2102 return selmon; 2103 } 2104 2105 /* There's no way to check accesses to destroyed windows, thus those cases are 2106 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2107 * default error handler, which may call exit. */ 2108 int 2109 xerror(Display *dpy, XErrorEvent *ee) 2110 { 2111 if (ee->error_code == BadWindow 2112 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2113 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2114 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2115 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2116 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2117 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2118 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2119 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2120 return 0; 2121 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2122 ee->request_code, ee->error_code); 2123 return xerrorxlib(dpy, ee); /* may call exit */ 2124 } 2125 2126 int 2127 xerrordummy(Display *dpy, XErrorEvent *ee) 2128 { 2129 return 0; 2130 } 2131 2132 /* Startup Error handler to check if another window manager 2133 * is already running. */ 2134 int 2135 xerrorstart(Display *dpy, XErrorEvent *ee) 2136 { 2137 die("dwm: another window manager is already running"); 2138 return -1; 2139 } 2140 2141 void 2142 zoom(const Arg *arg) 2143 { 2144 Client *c = selmon->sel; 2145 2146 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating) 2147 return; 2148 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next))) 2149 return; 2150 pop(c); 2151 } 2152 2153 int 2154 main(int argc, char *argv[]) 2155 { 2156 if (argc == 2 && !strcmp("-v", argv[1])) 2157 die("dwm-"VERSION); 2158 else if (argc != 1) 2159 die("usage: dwm [-v]"); 2160 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2161 fputs("warning: no locale support\n", stderr); 2162 if (!(dpy = XOpenDisplay(NULL))) 2163 die("dwm: cannot open display"); 2164 checkotherwm(); 2165 setup(); 2166 #ifdef __OpenBSD__ 2167 if (pledge("stdio rpath proc exec", NULL) == -1) 2168 die("pledge"); 2169 #endif /* __OpenBSD__ */ 2170 scan(); 2171 run(); 2172 cleanup(); 2173 XCloseDisplay(dpy); 2174 return EXIT_SUCCESS; 2175 }