dwm.c (57345B)
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 #include <X11/Xlib-xcb.h> 44 #include <xcb/res.h> 45 #ifdef __OpenBSD__ 46 #include <sys/sysctl.h> 47 #include <kvm.h> 48 #endif /* __OpenBSD */ 49 50 #include "drw.h" 51 #include "util.h" 52 53 /* macros */ 54 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask) 55 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask)) 56 #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \ 57 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy))) 58 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags])) 59 #define LENGTH(X) (sizeof X / sizeof X[0]) 60 #define MOUSEMASK (BUTTONMASK|PointerMotionMask) 61 #define WIDTH(X) ((X)->w + 2 * (X)->bw) 62 #define HEIGHT(X) ((X)->h + 2 * (X)->bw) 63 #define TAGMASK ((1 << LENGTH(tags)) - 1) 64 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 65 66 /* enums */ 67 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ 68 enum { SchemeNorm, SchemeSel, SchemeStatus, SchemeTagsSel, SchemeTagsNorm, SchemeInfoSel, SchemeInfoNorm }; /* color schemes */ 69 enum { NetSupported, NetWMName, NetWMState, NetWMCheck, 70 NetWMFullscreen, NetActiveWindow, NetWMWindowType, 71 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ 72 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */ 73 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, 74 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */ 75 76 typedef union { 77 int i; 78 unsigned int ui; 79 float f; 80 const void *v; 81 } Arg; 82 83 typedef struct { 84 unsigned int click; 85 unsigned int mask; 86 unsigned int button; 87 void (*func)(const Arg *arg); 88 const Arg arg; 89 } Button; 90 91 typedef struct Monitor Monitor; 92 typedef struct Client Client; 93 struct Client { 94 char name[256]; 95 float mina, maxa; 96 int x, y, w, h; 97 int oldx, oldy, oldw, oldh; 98 int basew, baseh, incw, inch, maxw, maxh, minw, minh; 99 int bw, oldbw; 100 unsigned int tags; 101 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, isterminal, noswallow; 102 pid_t pid; 103 Client *next; 104 Client *snext; 105 Client *swallowing; 106 Monitor *mon; 107 Window win; 108 }; 109 110 typedef struct { 111 unsigned int mod; 112 KeySym keysym; 113 void (*func)(const Arg *); 114 const Arg arg; 115 } Key; 116 117 typedef struct { 118 const char *symbol; 119 void (*arrange)(Monitor *); 120 } Layout; 121 122 struct Monitor { 123 char ltsymbol[16]; 124 float mfact; 125 int nmaster; 126 int num; 127 int by; /* bar geometry */ 128 int mx, my, mw, mh; /* screen size */ 129 int wx, wy, ww, wh; /* window area */ 130 unsigned int seltags; 131 unsigned int sellt; 132 unsigned int tagset[2]; 133 int showbar; 134 int topbar; 135 Client *clients; 136 Client *sel; 137 Client *stack; 138 Monitor *next; 139 Window barwin; 140 const Layout *lt[2]; 141 }; 142 143 typedef struct { 144 const char *class; 145 const char *instance; 146 const char *title; 147 unsigned int tags; 148 int isfloating; 149 int isterminal; 150 int noswallow; 151 int monitor; 152 } Rule; 153 154 /* function declarations */ 155 static void applyrules(Client *c); 156 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact); 157 static void arrange(Monitor *m); 158 static void arrangemon(Monitor *m); 159 static void attach(Client *c); 160 static void attachstack(Client *c); 161 static void buttonpress(XEvent *e); 162 static void checkotherwm(void); 163 static void cleanup(void); 164 static void cleanupmon(Monitor *mon); 165 static void clientmessage(XEvent *e); 166 static void configure(Client *c); 167 static void configurenotify(XEvent *e); 168 static void configurerequest(XEvent *e); 169 static Monitor *createmon(void); 170 static void destroynotify(XEvent *e); 171 static void detach(Client *c); 172 static void detachstack(Client *c); 173 static Monitor *dirtomon(int dir); 174 static void drawbar(Monitor *m); 175 static void drawbars(void); 176 static void enternotify(XEvent *e); 177 static void expose(XEvent *e); 178 static void focus(Client *c); 179 static void focusin(XEvent *e); 180 static void focusmon(const Arg *arg); 181 static void focusstack(const Arg *arg); 182 static Atom getatomprop(Client *c, Atom prop); 183 static int getrootptr(int *x, int *y); 184 static long getstate(Window w); 185 static int gettextprop(Window w, Atom atom, char *text, unsigned int size); 186 static void grabbuttons(Client *c, int focused); 187 static void grabkeys(void); 188 static void incnmaster(const Arg *arg); 189 static void keypress(XEvent *e); 190 static void killclient(const Arg *arg); 191 static void manage(Window w, XWindowAttributes *wa); 192 static void mappingnotify(XEvent *e); 193 static void maprequest(XEvent *e); 194 static void monocle(Monitor *m); 195 static void motionnotify(XEvent *e); 196 static void movemouse(const Arg *arg); 197 static Client *nexttiled(Client *c); 198 static void pop(Client *); 199 static void propertynotify(XEvent *e); 200 static void quit(const Arg *arg); 201 static Monitor *recttomon(int x, int y, int w, int h); 202 static void resize(Client *c, int x, int y, int w, int h, int interact); 203 static void resizeclient(Client *c, int x, int y, int w, int h); 204 static void resizemouse(const Arg *arg); 205 static void restack(Monitor *m); 206 static void run(void); 207 static void scan(void); 208 static int sendevent(Client *c, Atom proto); 209 static void sendmon(Client *c, Monitor *m); 210 static void setclientstate(Client *c, long state); 211 static void setfocus(Client *c); 212 static void setfullscreen(Client *c, int fullscreen); 213 static void setlayout(const Arg *arg); 214 static void setmfact(const Arg *arg); 215 static void setup(void); 216 static void seturgent(Client *c, int urg); 217 static void showhide(Client *c); 218 static void sigchld(int unused); 219 static void spawn(const Arg *arg); 220 static void tag(const Arg *arg); 221 static void tagmon(const Arg *arg); 222 static void tile(Monitor *); 223 static void togglebar(const Arg *arg); 224 static void togglefloating(const Arg *arg); 225 static void toggletag(const Arg *arg); 226 static void toggleview(const Arg *arg); 227 static void unfocus(Client *c, int setfocus); 228 static void unmanage(Client *c, int destroyed); 229 static void unmapnotify(XEvent *e); 230 static void updatebarpos(Monitor *m); 231 static void updatebars(void); 232 static void updateclientlist(void); 233 static int updategeom(void); 234 static void updatenumlockmask(void); 235 static void updatesizehints(Client *c); 236 static void updatestatus(void); 237 static void updatetitle(Client *c); 238 static void updatewindowtype(Client *c); 239 static void updatewmhints(Client *c); 240 static void view(const Arg *arg); 241 static Client *wintoclient(Window w); 242 static Monitor *wintomon(Window w); 243 static int xerror(Display *dpy, XErrorEvent *ee); 244 static int xerrordummy(Display *dpy, XErrorEvent *ee); 245 static int xerrorstart(Display *dpy, XErrorEvent *ee); 246 static void zoom(const Arg *arg); 247 248 static pid_t getparentprocess(pid_t p); 249 static int isdescprocess(pid_t p, pid_t c); 250 static Client *swallowingclient(Window w); 251 static Client *termforwin(const Client *c); 252 static pid_t winpid(Window w); 253 254 /* variables */ 255 static const char broken[] = "broken"; 256 static char stext[256]; 257 static int screen; 258 static int sw, sh; /* X display screen geometry width, height */ 259 static int bh, blw = 0; /* bar geometry */ 260 static int lrpad; /* sum of left and right padding for text */ 261 static int (*xerrorxlib)(Display *, XErrorEvent *); 262 static unsigned int numlockmask = 0; 263 static void (*handler[LASTEvent]) (XEvent *) = { 264 [ButtonPress] = buttonpress, 265 [ClientMessage] = clientmessage, 266 [ConfigureRequest] = configurerequest, 267 [ConfigureNotify] = configurenotify, 268 [DestroyNotify] = destroynotify, 269 [EnterNotify] = enternotify, 270 [Expose] = expose, 271 [FocusIn] = focusin, 272 [KeyPress] = keypress, 273 [MappingNotify] = mappingnotify, 274 [MapRequest] = maprequest, 275 [MotionNotify] = motionnotify, 276 [PropertyNotify] = propertynotify, 277 [UnmapNotify] = unmapnotify 278 }; 279 static Atom wmatom[WMLast], netatom[NetLast]; 280 static int running = 1; 281 static Cur *cursor[CurLast]; 282 static Clr **scheme; 283 static Display *dpy; 284 static Drw *drw; 285 static Monitor *mons, *selmon; 286 static Window root, wmcheckwin; 287 288 static xcb_connection_t *xcon; 289 290 /* configuration, allows nested code to access above variables */ 291 #include "config.h" 292 293 /* compile-time check if all tags fit into an unsigned int bit array. */ 294 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; 295 296 /* function implementations */ 297 void 298 applyrules(Client *c) 299 { 300 const char *class, *instance; 301 unsigned int i; 302 const Rule *r; 303 Monitor *m; 304 XClassHint ch = { NULL, NULL }; 305 306 /* rule matching */ 307 c->isfloating = 0; 308 c->tags = 0; 309 XGetClassHint(dpy, c->win, &ch); 310 class = ch.res_class ? ch.res_class : broken; 311 instance = ch.res_name ? ch.res_name : broken; 312 313 for (i = 0; i < LENGTH(rules); i++) { 314 r = &rules[i]; 315 if ((!r->title || strstr(c->name, r->title)) 316 && (!r->class || strstr(class, r->class)) 317 && (!r->instance || strstr(instance, r->instance))) 318 { 319 c->isterminal = r->isterminal; 320 c->noswallow = r->noswallow; 321 c->isfloating = r->isfloating; 322 c->tags |= r->tags; 323 for (m = mons; m && m->num != r->monitor; m = m->next); 324 if (m) 325 c->mon = m; 326 } 327 } 328 if (ch.res_class) 329 XFree(ch.res_class); 330 if (ch.res_name) 331 XFree(ch.res_name); 332 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags]; 333 } 334 335 int 336 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) 337 { 338 int baseismin; 339 Monitor *m = c->mon; 340 341 /* set minimum possible */ 342 *w = MAX(1, *w); 343 *h = MAX(1, *h); 344 if (interact) { 345 if (*x > sw) 346 *x = sw - WIDTH(c); 347 if (*y > sh) 348 *y = sh - HEIGHT(c); 349 if (*x + *w + 2 * c->bw < 0) 350 *x = 0; 351 if (*y + *h + 2 * c->bw < 0) 352 *y = 0; 353 } else { 354 if (*x >= m->wx + m->ww) 355 *x = m->wx + m->ww - WIDTH(c); 356 if (*y >= m->wy + m->wh) 357 *y = m->wy + m->wh - HEIGHT(c); 358 if (*x + *w + 2 * c->bw <= m->wx) 359 *x = m->wx; 360 if (*y + *h + 2 * c->bw <= m->wy) 361 *y = m->wy; 362 } 363 if (*h < bh) 364 *h = bh; 365 if (*w < bh) 366 *w = bh; 367 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { 368 /* see last two sentences in ICCCM 4.1.2.3 */ 369 baseismin = c->basew == c->minw && c->baseh == c->minh; 370 if (!baseismin) { /* temporarily remove base dimensions */ 371 *w -= c->basew; 372 *h -= c->baseh; 373 } 374 /* adjust for aspect limits */ 375 if (c->mina > 0 && c->maxa > 0) { 376 if (c->maxa < (float)*w / *h) 377 *w = *h * c->maxa + 0.5; 378 else if (c->mina < (float)*h / *w) 379 *h = *w * c->mina + 0.5; 380 } 381 if (baseismin) { /* increment calculation requires this */ 382 *w -= c->basew; 383 *h -= c->baseh; 384 } 385 /* adjust for increment value */ 386 if (c->incw) 387 *w -= *w % c->incw; 388 if (c->inch) 389 *h -= *h % c->inch; 390 /* restore base dimensions */ 391 *w = MAX(*w + c->basew, c->minw); 392 *h = MAX(*h + c->baseh, c->minh); 393 if (c->maxw) 394 *w = MIN(*w, c->maxw); 395 if (c->maxh) 396 *h = MIN(*h, c->maxh); 397 } 398 return *x != c->x || *y != c->y || *w != c->w || *h != c->h; 399 } 400 401 void 402 arrange(Monitor *m) 403 { 404 if (m) 405 showhide(m->stack); 406 else for (m = mons; m; m = m->next) 407 showhide(m->stack); 408 if (m) { 409 arrangemon(m); 410 restack(m); 411 } else for (m = mons; m; m = m->next) 412 arrangemon(m); 413 } 414 415 void 416 arrangemon(Monitor *m) 417 { 418 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol); 419 if (m->lt[m->sellt]->arrange) 420 m->lt[m->sellt]->arrange(m); 421 } 422 423 void 424 attach(Client *c) 425 { 426 c->next = c->mon->clients; 427 c->mon->clients = c; 428 } 429 430 void 431 attachstack(Client *c) 432 { 433 c->snext = c->mon->stack; 434 c->mon->stack = c; 435 } 436 437 void 438 swallow(Client *p, Client *c) 439 { 440 441 if (c->noswallow || c->isterminal) 442 return; 443 if (c->noswallow && !swallowfloating && c->isfloating) 444 return; 445 446 detach(c); 447 detachstack(c); 448 449 setclientstate(c, WithdrawnState); 450 XUnmapWindow(dpy, p->win); 451 452 p->swallowing = c; 453 c->mon = p->mon; 454 455 Window w = p->win; 456 p->win = c->win; 457 c->win = w; 458 updatetitle(p); 459 XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h); 460 arrange(p->mon); 461 configure(p); 462 updateclientlist(); 463 } 464 465 void 466 unswallow(Client *c) 467 { 468 c->win = c->swallowing->win; 469 470 free(c->swallowing); 471 c->swallowing = NULL; 472 473 /* unfullscreen the client */ 474 setfullscreen(c, 0); 475 updatetitle(c); 476 arrange(c->mon); 477 XMapWindow(dpy, c->win); 478 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 479 setclientstate(c, NormalState); 480 focus(NULL); 481 arrange(c->mon); 482 } 483 484 void 485 buttonpress(XEvent *e) 486 { 487 unsigned int i, x, click; 488 Arg arg = {0}; 489 Client *c; 490 Monitor *m; 491 XButtonPressedEvent *ev = &e->xbutton; 492 493 click = ClkRootWin; 494 /* focus monitor if necessary */ 495 if ((m = wintomon(ev->window)) && m != selmon) { 496 unfocus(selmon->sel, 1); 497 selmon = m; 498 focus(NULL); 499 } 500 if (ev->window == selmon->barwin) { 501 i = x = 0; 502 do 503 x += TEXTW(tags[i]); 504 while (ev->x >= x && ++i < LENGTH(tags)); 505 if (i < LENGTH(tags)) { 506 click = ClkTagBar; 507 arg.ui = 1 << i; 508 } else if (ev->x < x + blw) 509 click = ClkLtSymbol; 510 else if (ev->x > selmon->ww - (int)TEXTW(stext)) 511 click = ClkStatusText; 512 else 513 click = ClkWinTitle; 514 } else if ((c = wintoclient(ev->window))) { 515 focus(c); 516 restack(selmon); 517 XAllowEvents(dpy, ReplayPointer, CurrentTime); 518 click = ClkClientWin; 519 } 520 for (i = 0; i < LENGTH(buttons); i++) 521 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button 522 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) 523 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); 524 } 525 526 void 527 checkotherwm(void) 528 { 529 xerrorxlib = XSetErrorHandler(xerrorstart); 530 /* this causes an error if some other window manager is running */ 531 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); 532 XSync(dpy, False); 533 XSetErrorHandler(xerror); 534 XSync(dpy, False); 535 } 536 537 void 538 cleanup(void) 539 { 540 Arg a = {.ui = ~0}; 541 Layout foo = { "", NULL }; 542 Monitor *m; 543 size_t i; 544 545 view(&a); 546 selmon->lt[selmon->sellt] = &foo; 547 for (m = mons; m; m = m->next) 548 while (m->stack) 549 unmanage(m->stack, 0); 550 XUngrabKey(dpy, AnyKey, AnyModifier, root); 551 while (mons) 552 cleanupmon(mons); 553 for (i = 0; i < CurLast; i++) 554 drw_cur_free(drw, cursor[i]); 555 for (i = 0; i < LENGTH(colors); i++) 556 free(scheme[i]); 557 XDestroyWindow(dpy, wmcheckwin); 558 drw_free(drw); 559 XSync(dpy, False); 560 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); 561 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 562 } 563 564 void 565 cleanupmon(Monitor *mon) 566 { 567 Monitor *m; 568 569 if (mon == mons) 570 mons = mons->next; 571 else { 572 for (m = mons; m && m->next != mon; m = m->next); 573 m->next = mon->next; 574 } 575 XUnmapWindow(dpy, mon->barwin); 576 XDestroyWindow(dpy, mon->barwin); 577 free(mon); 578 } 579 580 void 581 clientmessage(XEvent *e) 582 { 583 XClientMessageEvent *cme = &e->xclient; 584 Client *c = wintoclient(cme->window); 585 586 if (!c) 587 return; 588 if (cme->message_type == netatom[NetWMState]) { 589 if (cme->data.l[1] == netatom[NetWMFullscreen] 590 || cme->data.l[2] == netatom[NetWMFullscreen]) 591 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */ 592 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen))); 593 } else if (cme->message_type == netatom[NetActiveWindow]) { 594 if (c != selmon->sel && !c->isurgent) 595 seturgent(c, 1); 596 } 597 } 598 599 void 600 configure(Client *c) 601 { 602 XConfigureEvent ce; 603 604 ce.type = ConfigureNotify; 605 ce.display = dpy; 606 ce.event = c->win; 607 ce.window = c->win; 608 ce.x = c->x; 609 ce.y = c->y; 610 ce.width = c->w; 611 ce.height = c->h; 612 ce.border_width = c->bw; 613 ce.above = None; 614 ce.override_redirect = False; 615 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); 616 } 617 618 void 619 configurenotify(XEvent *e) 620 { 621 Monitor *m; 622 Client *c; 623 XConfigureEvent *ev = &e->xconfigure; 624 int dirty; 625 626 /* TODO: updategeom handling sucks, needs to be simplified */ 627 if (ev->window == root) { 628 dirty = (sw != ev->width || sh != ev->height); 629 sw = ev->width; 630 sh = ev->height; 631 if (updategeom() || dirty) { 632 drw_resize(drw, sw, bh); 633 updatebars(); 634 for (m = mons; m; m = m->next) { 635 for (c = m->clients; c; c = c->next) 636 if (c->isfullscreen) 637 resizeclient(c, m->mx, m->my, m->mw, m->mh); 638 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); 639 } 640 focus(NULL); 641 arrange(NULL); 642 } 643 } 644 } 645 646 void 647 configurerequest(XEvent *e) 648 { 649 Client *c; 650 Monitor *m; 651 XConfigureRequestEvent *ev = &e->xconfigurerequest; 652 XWindowChanges wc; 653 654 if ((c = wintoclient(ev->window))) { 655 if (ev->value_mask & CWBorderWidth) 656 c->bw = ev->border_width; 657 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) { 658 m = c->mon; 659 if (ev->value_mask & CWX) { 660 c->oldx = c->x; 661 c->x = m->mx + ev->x; 662 } 663 if (ev->value_mask & CWY) { 664 c->oldy = c->y; 665 c->y = m->my + ev->y; 666 } 667 if (ev->value_mask & CWWidth) { 668 c->oldw = c->w; 669 c->w = ev->width; 670 } 671 if (ev->value_mask & CWHeight) { 672 c->oldh = c->h; 673 c->h = ev->height; 674 } 675 if ((c->x + c->w) > m->mx + m->mw && c->isfloating) 676 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */ 677 if ((c->y + c->h) > m->my + m->mh && c->isfloating) 678 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */ 679 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight))) 680 configure(c); 681 if (ISVISIBLE(c)) 682 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 683 } else 684 configure(c); 685 } else { 686 wc.x = ev->x; 687 wc.y = ev->y; 688 wc.width = ev->width; 689 wc.height = ev->height; 690 wc.border_width = ev->border_width; 691 wc.sibling = ev->above; 692 wc.stack_mode = ev->detail; 693 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); 694 } 695 XSync(dpy, False); 696 } 697 698 Monitor * 699 createmon(void) 700 { 701 Monitor *m; 702 703 m = ecalloc(1, sizeof(Monitor)); 704 m->tagset[0] = m->tagset[1] = 1; 705 m->mfact = mfact; 706 m->nmaster = nmaster; 707 m->showbar = showbar; 708 m->topbar = topbar; 709 m->lt[0] = &layouts[0]; 710 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 711 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); 712 return m; 713 } 714 715 void 716 destroynotify(XEvent *e) 717 { 718 Client *c; 719 XDestroyWindowEvent *ev = &e->xdestroywindow; 720 721 if ((c = wintoclient(ev->window))) 722 unmanage(c, 1); 723 724 else if ((c = swallowingclient(ev->window))) 725 unmanage(c->swallowing, 1); 726 } 727 728 void 729 detach(Client *c) 730 { 731 Client **tc; 732 733 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next); 734 *tc = c->next; 735 } 736 737 void 738 detachstack(Client *c) 739 { 740 Client **tc, *t; 741 742 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext); 743 *tc = c->snext; 744 745 if (c == c->mon->sel) { 746 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext); 747 c->mon->sel = t; 748 } 749 } 750 751 Monitor * 752 dirtomon(int dir) 753 { 754 Monitor *m = NULL; 755 756 if (dir > 0) { 757 if (!(m = selmon->next)) 758 m = mons; 759 } else if (selmon == mons) 760 for (m = mons; m->next; m = m->next); 761 else 762 for (m = mons; m->next != selmon; m = m->next); 763 return m; 764 } 765 766 void 767 drawbar(Monitor *m) 768 { 769 int x, w, tw = 0; 770 int boxs = drw->fonts->h / 9; 771 int boxw = drw->fonts->h / 6 + 2; 772 unsigned int i, occ = 0, urg = 0; 773 Client *c; 774 775 /* draw status first so it can be overdrawn by tags later */ 776 if (m == selmon) { /* status is only drawn on selected monitor */ 777 drw_setscheme(drw, scheme[SchemeStatus]); 778 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 779 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0); 780 } 781 782 for (c = m->clients; c; c = c->next) { 783 occ |= c->tags; 784 if (c->isurgent) 785 urg |= c->tags; 786 } 787 x = 0; 788 for (i = 0; i < LENGTH(tags); i++) { 789 w = TEXTW(tags[i]); 790 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeTagsSel : SchemeTagsNorm]); 791 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 792 if (occ & 1 << i) 793 drw_rect(drw, x + boxs, boxs, boxw, boxw, 794 m == selmon && selmon->sel && selmon->sel->tags & 1 << i, 795 urg & 1 << i); 796 x += w; 797 } 798 w = blw = TEXTW(m->ltsymbol); 799 drw_setscheme(drw, scheme[SchemeTagsNorm]); 800 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 801 802 if ((w = m->ww - tw - x) > bh) { 803 if (m->sel) { 804 drw_setscheme(drw, scheme[m == selmon ? SchemeInfoSel : SchemeInfoNorm]); 805 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 806 if (m->sel->isfloating) 807 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 808 } else { 809 drw_setscheme(drw, scheme[SchemeInfoNorm]); 810 drw_rect(drw, x, 0, w, bh, 1, 1); 811 } 812 } 813 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 814 } 815 816 void 817 drawbars(void) 818 { 819 Monitor *m; 820 821 for (m = mons; m; m = m->next) 822 drawbar(m); 823 } 824 825 void 826 enternotify(XEvent *e) 827 { 828 Client *c; 829 Monitor *m; 830 XCrossingEvent *ev = &e->xcrossing; 831 832 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 833 return; 834 c = wintoclient(ev->window); 835 m = c ? c->mon : wintomon(ev->window); 836 if (m != selmon) { 837 unfocus(selmon->sel, 1); 838 selmon = m; 839 } else if (!c || c == selmon->sel) 840 return; 841 focus(c); 842 } 843 844 void 845 expose(XEvent *e) 846 { 847 Monitor *m; 848 XExposeEvent *ev = &e->xexpose; 849 850 if (ev->count == 0 && (m = wintomon(ev->window))) 851 drawbar(m); 852 } 853 854 void 855 focus(Client *c) 856 { 857 if (!c || !ISVISIBLE(c)) 858 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 859 if (selmon->sel && selmon->sel != c) 860 unfocus(selmon->sel, 0); 861 if (c) { 862 if (c->mon != selmon) 863 selmon = c->mon; 864 if (c->isurgent) 865 seturgent(c, 0); 866 detachstack(c); 867 attachstack(c); 868 grabbuttons(c, 1); 869 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 870 setfocus(c); 871 } else { 872 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 873 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 874 } 875 selmon->sel = c; 876 drawbars(); 877 } 878 879 /* there are some broken focus acquiring clients needing extra handling */ 880 void 881 focusin(XEvent *e) 882 { 883 XFocusChangeEvent *ev = &e->xfocus; 884 885 if (selmon->sel && ev->window != selmon->sel->win) 886 setfocus(selmon->sel); 887 } 888 889 void 890 focusmon(const Arg *arg) 891 { 892 Monitor *m; 893 894 if (!mons->next) 895 return; 896 if ((m = dirtomon(arg->i)) == selmon) 897 return; 898 unfocus(selmon->sel, 0); 899 selmon = m; 900 focus(NULL); 901 } 902 903 void 904 focusstack(const Arg *arg) 905 { 906 Client *c = NULL, *i; 907 908 if (!selmon->sel) 909 return; 910 if (arg->i > 0) { 911 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 912 if (!c) 913 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 914 } else { 915 for (i = selmon->clients; i != selmon->sel; i = i->next) 916 if (ISVISIBLE(i)) 917 c = i; 918 if (!c) 919 for (; i; i = i->next) 920 if (ISVISIBLE(i)) 921 c = i; 922 } 923 if (c) { 924 focus(c); 925 restack(selmon); 926 } 927 } 928 929 Atom 930 getatomprop(Client *c, Atom prop) 931 { 932 int di; 933 unsigned long dl; 934 unsigned char *p = NULL; 935 Atom da, atom = None; 936 937 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 938 &da, &di, &dl, &dl, &p) == Success && p) { 939 atom = *(Atom *)p; 940 XFree(p); 941 } 942 return atom; 943 } 944 945 int 946 getrootptr(int *x, int *y) 947 { 948 int di; 949 unsigned int dui; 950 Window dummy; 951 952 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui); 953 } 954 955 long 956 getstate(Window w) 957 { 958 int format; 959 long result = -1; 960 unsigned char *p = NULL; 961 unsigned long n, extra; 962 Atom real; 963 964 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], 965 &real, &format, &n, &extra, (unsigned char **)&p) != Success) 966 return -1; 967 if (n != 0) 968 result = *p; 969 XFree(p); 970 return result; 971 } 972 973 int 974 gettextprop(Window w, Atom atom, char *text, unsigned int size) 975 { 976 char **list = NULL; 977 int n; 978 XTextProperty name; 979 980 if (!text || size == 0) 981 return 0; 982 text[0] = '\0'; 983 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems) 984 return 0; 985 if (name.encoding == XA_STRING) 986 strncpy(text, (char *)name.value, size - 1); 987 else { 988 if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) { 989 strncpy(text, *list, size - 1); 990 XFreeStringList(list); 991 } 992 } 993 text[size - 1] = '\0'; 994 XFree(name.value); 995 return 1; 996 } 997 998 void 999 grabbuttons(Client *c, int focused) 1000 { 1001 updatenumlockmask(); 1002 { 1003 unsigned int i, j; 1004 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 1005 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1006 if (!focused) 1007 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, 1008 BUTTONMASK, GrabModeSync, GrabModeSync, None, None); 1009 for (i = 0; i < LENGTH(buttons); i++) 1010 if (buttons[i].click == ClkClientWin) 1011 for (j = 0; j < LENGTH(modifiers); j++) 1012 XGrabButton(dpy, buttons[i].button, 1013 buttons[i].mask | modifiers[j], 1014 c->win, False, BUTTONMASK, 1015 GrabModeAsync, GrabModeSync, None, None); 1016 } 1017 } 1018 1019 void 1020 grabkeys(void) 1021 { 1022 updatenumlockmask(); 1023 { 1024 unsigned int i, j; 1025 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 1026 KeyCode code; 1027 1028 XUngrabKey(dpy, AnyKey, AnyModifier, root); 1029 for (i = 0; i < LENGTH(keys); i++) 1030 if ((code = XKeysymToKeycode(dpy, keys[i].keysym))) 1031 for (j = 0; j < LENGTH(modifiers); j++) 1032 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root, 1033 True, GrabModeAsync, GrabModeAsync); 1034 } 1035 } 1036 1037 void 1038 incnmaster(const Arg *arg) 1039 { 1040 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); 1041 arrange(selmon); 1042 } 1043 1044 #ifdef XINERAMA 1045 static int 1046 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) 1047 { 1048 while (n--) 1049 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org 1050 && unique[n].width == info->width && unique[n].height == info->height) 1051 return 0; 1052 return 1; 1053 } 1054 #endif /* XINERAMA */ 1055 1056 void 1057 keypress(XEvent *e) 1058 { 1059 unsigned int i; 1060 KeySym keysym; 1061 XKeyEvent *ev; 1062 1063 ev = &e->xkey; 1064 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); 1065 for (i = 0; i < LENGTH(keys); i++) 1066 if (keysym == keys[i].keysym 1067 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) 1068 && keys[i].func) 1069 keys[i].func(&(keys[i].arg)); 1070 } 1071 1072 void 1073 killclient(const Arg *arg) 1074 { 1075 if (!selmon->sel) 1076 return; 1077 if (!sendevent(selmon->sel, wmatom[WMDelete])) { 1078 XGrabServer(dpy); 1079 XSetErrorHandler(xerrordummy); 1080 XSetCloseDownMode(dpy, DestroyAll); 1081 XKillClient(dpy, selmon->sel->win); 1082 XSync(dpy, False); 1083 XSetErrorHandler(xerror); 1084 XUngrabServer(dpy); 1085 } 1086 } 1087 1088 void 1089 manage(Window w, XWindowAttributes *wa) 1090 { 1091 Client *c, *t = NULL, *term = NULL; 1092 Window trans = None; 1093 XWindowChanges wc; 1094 1095 c = ecalloc(1, sizeof(Client)); 1096 c->win = w; 1097 c->pid = winpid(w); 1098 /* geometry */ 1099 c->x = c->oldx = wa->x; 1100 c->y = c->oldy = wa->y; 1101 c->w = c->oldw = wa->width; 1102 c->h = c->oldh = wa->height; 1103 c->oldbw = wa->border_width; 1104 1105 updatetitle(c); 1106 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { 1107 c->mon = t->mon; 1108 c->tags = t->tags; 1109 } else { 1110 c->mon = selmon; 1111 applyrules(c); 1112 term = termforwin(c); 1113 } 1114 1115 if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw) 1116 c->x = c->mon->mx + c->mon->mw - WIDTH(c); 1117 if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh) 1118 c->y = c->mon->my + c->mon->mh - HEIGHT(c); 1119 c->x = MAX(c->x, c->mon->mx); 1120 /* only fix client y-offset, if the client center might cover the bar */ 1121 c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx) 1122 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my); 1123 c->bw = borderpx; 1124 1125 wc.border_width = c->bw; 1126 XConfigureWindow(dpy, w, CWBorderWidth, &wc); 1127 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); 1128 configure(c); /* propagates border_width, if size doesn't change */ 1129 updatewindowtype(c); 1130 updatesizehints(c); 1131 updatewmhints(c); 1132 c->x = c->mon->mx + (c->mon->mw - WIDTH(c)) / 2; 1133 c->y = c->mon->my + (c->mon->mh - HEIGHT(c)) / 2; 1134 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); 1135 grabbuttons(c, 0); 1136 if (!c->isfloating) 1137 c->isfloating = c->oldstate = trans != None || c->isfixed; 1138 if (c->isfloating) 1139 XRaiseWindow(dpy, c->win); 1140 attach(c); 1141 attachstack(c); 1142 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend, 1143 (unsigned char *) &(c->win), 1); 1144 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */ 1145 setclientstate(c, NormalState); 1146 if (c->mon == selmon) 1147 unfocus(selmon->sel, 0); 1148 c->mon->sel = c; 1149 arrange(c->mon); 1150 XMapWindow(dpy, c->win); 1151 if (term) 1152 swallow(term, c); 1153 focus(NULL); 1154 } 1155 1156 void 1157 mappingnotify(XEvent *e) 1158 { 1159 XMappingEvent *ev = &e->xmapping; 1160 1161 XRefreshKeyboardMapping(ev); 1162 if (ev->request == MappingKeyboard) 1163 grabkeys(); 1164 } 1165 1166 void 1167 maprequest(XEvent *e) 1168 { 1169 static XWindowAttributes wa; 1170 XMapRequestEvent *ev = &e->xmaprequest; 1171 1172 if (!XGetWindowAttributes(dpy, ev->window, &wa)) 1173 return; 1174 if (wa.override_redirect) 1175 return; 1176 if (!wintoclient(ev->window)) 1177 manage(ev->window, &wa); 1178 } 1179 1180 void 1181 monocle(Monitor *m) 1182 { 1183 unsigned int n = 0; 1184 Client *c; 1185 1186 for (c = m->clients; c; c = c->next) 1187 if (ISVISIBLE(c)) 1188 n++; 1189 if (n > 0) /* override layout symbol */ 1190 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n); 1191 for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) 1192 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0); 1193 } 1194 1195 void 1196 motionnotify(XEvent *e) 1197 { 1198 static Monitor *mon = NULL; 1199 Monitor *m; 1200 XMotionEvent *ev = &e->xmotion; 1201 1202 if (ev->window != root) 1203 return; 1204 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) { 1205 unfocus(selmon->sel, 1); 1206 selmon = m; 1207 focus(NULL); 1208 } 1209 mon = m; 1210 } 1211 1212 void 1213 movemouse(const Arg *arg) 1214 { 1215 int x, y, ocx, ocy, nx, ny; 1216 Client *c; 1217 Monitor *m; 1218 XEvent ev; 1219 Time lasttime = 0; 1220 1221 if (!(c = selmon->sel)) 1222 return; 1223 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ 1224 return; 1225 restack(selmon); 1226 ocx = c->x; 1227 ocy = c->y; 1228 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1229 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) 1230 return; 1231 if (!getrootptr(&x, &y)) 1232 return; 1233 do { 1234 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1235 switch(ev.type) { 1236 case ConfigureRequest: 1237 case Expose: 1238 case MapRequest: 1239 handler[ev.type](&ev); 1240 break; 1241 case MotionNotify: 1242 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1243 continue; 1244 lasttime = ev.xmotion.time; 1245 1246 nx = ocx + (ev.xmotion.x - x); 1247 ny = ocy + (ev.xmotion.y - y); 1248 if (abs(selmon->wx - nx) < snap) 1249 nx = selmon->wx; 1250 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) 1251 nx = selmon->wx + selmon->ww - WIDTH(c); 1252 if (abs(selmon->wy - ny) < snap) 1253 ny = selmon->wy; 1254 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) 1255 ny = selmon->wy + selmon->wh - HEIGHT(c); 1256 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1257 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) 1258 togglefloating(NULL); 1259 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1260 resize(c, nx, ny, c->w, c->h, 1); 1261 break; 1262 } 1263 } while (ev.type != ButtonRelease); 1264 XUngrabPointer(dpy, CurrentTime); 1265 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1266 sendmon(c, m); 1267 selmon = m; 1268 focus(NULL); 1269 } 1270 } 1271 1272 Client * 1273 nexttiled(Client *c) 1274 { 1275 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next); 1276 return c; 1277 } 1278 1279 void 1280 pop(Client *c) 1281 { 1282 detach(c); 1283 attach(c); 1284 focus(c); 1285 arrange(c->mon); 1286 } 1287 1288 void 1289 propertynotify(XEvent *e) 1290 { 1291 Client *c; 1292 Window trans; 1293 XPropertyEvent *ev = &e->xproperty; 1294 1295 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1296 updatestatus(); 1297 else if (ev->state == PropertyDelete) 1298 return; /* ignore */ 1299 else if ((c = wintoclient(ev->window))) { 1300 switch(ev->atom) { 1301 default: break; 1302 case XA_WM_TRANSIENT_FOR: 1303 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1304 (c->isfloating = (wintoclient(trans)) != NULL)) 1305 arrange(c->mon); 1306 break; 1307 case XA_WM_NORMAL_HINTS: 1308 updatesizehints(c); 1309 break; 1310 case XA_WM_HINTS: 1311 updatewmhints(c); 1312 drawbars(); 1313 break; 1314 } 1315 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1316 updatetitle(c); 1317 if (c == c->mon->sel) 1318 drawbar(c->mon); 1319 } 1320 if (ev->atom == netatom[NetWMWindowType]) 1321 updatewindowtype(c); 1322 } 1323 } 1324 1325 void 1326 quit(const Arg *arg) 1327 { 1328 running = 0; 1329 } 1330 1331 Monitor * 1332 recttomon(int x, int y, int w, int h) 1333 { 1334 Monitor *m, *r = selmon; 1335 int a, area = 0; 1336 1337 for (m = mons; m; m = m->next) 1338 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1339 area = a; 1340 r = m; 1341 } 1342 return r; 1343 } 1344 1345 void 1346 resize(Client *c, int x, int y, int w, int h, int interact) 1347 { 1348 if (applysizehints(c, &x, &y, &w, &h, interact)) 1349 resizeclient(c, x, y, w, h); 1350 } 1351 1352 void 1353 resizeclient(Client *c, int x, int y, int w, int h) 1354 { 1355 XWindowChanges wc; 1356 1357 c->oldx = c->x; c->x = wc.x = x; 1358 c->oldy = c->y; c->y = wc.y = y; 1359 c->oldw = c->w; c->w = wc.width = w; 1360 c->oldh = c->h; c->h = wc.height = h; 1361 wc.border_width = c->bw; 1362 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1363 configure(c); 1364 XSync(dpy, False); 1365 } 1366 1367 void 1368 resizemouse(const Arg *arg) 1369 { 1370 int ocx, ocy, nw, nh; 1371 Client *c; 1372 Monitor *m; 1373 XEvent ev; 1374 Time lasttime = 0; 1375 1376 if (!(c = selmon->sel)) 1377 return; 1378 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1379 return; 1380 restack(selmon); 1381 ocx = c->x; 1382 ocy = c->y; 1383 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1384 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1385 return; 1386 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1387 do { 1388 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1389 switch(ev.type) { 1390 case ConfigureRequest: 1391 case Expose: 1392 case MapRequest: 1393 handler[ev.type](&ev); 1394 break; 1395 case MotionNotify: 1396 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1397 continue; 1398 lasttime = ev.xmotion.time; 1399 1400 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1401 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1402 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1403 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1404 { 1405 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1406 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1407 togglefloating(NULL); 1408 } 1409 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1410 resize(c, c->x, c->y, nw, nh, 1); 1411 break; 1412 } 1413 } while (ev.type != ButtonRelease); 1414 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1415 XUngrabPointer(dpy, CurrentTime); 1416 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1417 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1418 sendmon(c, m); 1419 selmon = m; 1420 focus(NULL); 1421 } 1422 } 1423 1424 void 1425 restack(Monitor *m) 1426 { 1427 Client *c; 1428 XEvent ev; 1429 XWindowChanges wc; 1430 1431 drawbar(m); 1432 if (!m->sel) 1433 return; 1434 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1435 XRaiseWindow(dpy, m->sel->win); 1436 if (m->lt[m->sellt]->arrange) { 1437 wc.stack_mode = Below; 1438 wc.sibling = m->barwin; 1439 for (c = m->stack; c; c = c->snext) 1440 if (!c->isfloating && ISVISIBLE(c)) { 1441 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1442 wc.sibling = c->win; 1443 } 1444 } 1445 XSync(dpy, False); 1446 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1447 } 1448 1449 void 1450 run(void) 1451 { 1452 XEvent ev; 1453 /* main event loop */ 1454 XSync(dpy, False); 1455 while (running && !XNextEvent(dpy, &ev)) 1456 if (handler[ev.type]) 1457 handler[ev.type](&ev); /* call handler */ 1458 } 1459 1460 void 1461 scan(void) 1462 { 1463 unsigned int i, num; 1464 Window d1, d2, *wins = NULL; 1465 XWindowAttributes wa; 1466 1467 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1468 for (i = 0; i < num; i++) { 1469 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1470 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1471 continue; 1472 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1473 manage(wins[i], &wa); 1474 } 1475 for (i = 0; i < num; i++) { /* now the transients */ 1476 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1477 continue; 1478 if (XGetTransientForHint(dpy, wins[i], &d1) 1479 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1480 manage(wins[i], &wa); 1481 } 1482 if (wins) 1483 XFree(wins); 1484 } 1485 } 1486 1487 void 1488 sendmon(Client *c, Monitor *m) 1489 { 1490 if (c->mon == m) 1491 return; 1492 unfocus(c, 1); 1493 detach(c); 1494 detachstack(c); 1495 c->mon = m; 1496 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1497 attach(c); 1498 attachstack(c); 1499 focus(NULL); 1500 arrange(NULL); 1501 } 1502 1503 void 1504 setclientstate(Client *c, long state) 1505 { 1506 long data[] = { state, None }; 1507 1508 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1509 PropModeReplace, (unsigned char *)data, 2); 1510 } 1511 1512 int 1513 sendevent(Client *c, Atom proto) 1514 { 1515 int n; 1516 Atom *protocols; 1517 int exists = 0; 1518 XEvent ev; 1519 1520 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1521 while (!exists && n--) 1522 exists = protocols[n] == proto; 1523 XFree(protocols); 1524 } 1525 if (exists) { 1526 ev.type = ClientMessage; 1527 ev.xclient.window = c->win; 1528 ev.xclient.message_type = wmatom[WMProtocols]; 1529 ev.xclient.format = 32; 1530 ev.xclient.data.l[0] = proto; 1531 ev.xclient.data.l[1] = CurrentTime; 1532 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1533 } 1534 return exists; 1535 } 1536 1537 void 1538 setfocus(Client *c) 1539 { 1540 if (!c->neverfocus) { 1541 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1542 XChangeProperty(dpy, root, netatom[NetActiveWindow], 1543 XA_WINDOW, 32, PropModeReplace, 1544 (unsigned char *) &(c->win), 1); 1545 } 1546 sendevent(c, wmatom[WMTakeFocus]); 1547 } 1548 1549 void 1550 setfullscreen(Client *c, int fullscreen) 1551 { 1552 if (fullscreen && !c->isfullscreen) { 1553 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1554 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1555 c->isfullscreen = 1; 1556 c->oldstate = c->isfloating; 1557 c->oldbw = c->bw; 1558 c->bw = 0; 1559 c->isfloating = 1; 1560 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1561 XRaiseWindow(dpy, c->win); 1562 } else if (!fullscreen && c->isfullscreen){ 1563 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1564 PropModeReplace, (unsigned char*)0, 0); 1565 c->isfullscreen = 0; 1566 c->isfloating = c->oldstate; 1567 c->bw = c->oldbw; 1568 c->x = c->oldx; 1569 c->y = c->oldy; 1570 c->w = c->oldw; 1571 c->h = c->oldh; 1572 resizeclient(c, c->x, c->y, c->w, c->h); 1573 arrange(c->mon); 1574 } 1575 } 1576 1577 void 1578 setlayout(const Arg *arg) 1579 { 1580 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1581 selmon->sellt ^= 1; 1582 if (arg && arg->v) 1583 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1584 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol); 1585 if (selmon->sel) 1586 arrange(selmon); 1587 else 1588 drawbar(selmon); 1589 } 1590 1591 /* arg > 1.0 will set mfact absolutely */ 1592 void 1593 setmfact(const Arg *arg) 1594 { 1595 float f; 1596 1597 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1598 return; 1599 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1600 if (f < 0.05 || f > 0.95) 1601 return; 1602 selmon->mfact = f; 1603 arrange(selmon); 1604 } 1605 1606 void 1607 setup(void) 1608 { 1609 int i; 1610 XSetWindowAttributes wa; 1611 Atom utf8string; 1612 1613 /* clean up any zombies immediately */ 1614 sigchld(0); 1615 1616 /* init screen */ 1617 screen = DefaultScreen(dpy); 1618 sw = DisplayWidth(dpy, screen); 1619 sh = DisplayHeight(dpy, screen); 1620 root = RootWindow(dpy, screen); 1621 drw = drw_create(dpy, screen, root, sw, sh); 1622 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1623 die("no fonts could be loaded."); 1624 lrpad = drw->fonts->h; 1625 bh = drw->fonts->h + 2; 1626 updategeom(); 1627 /* init atoms */ 1628 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1629 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1630 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1631 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1632 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1633 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1634 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1635 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1636 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1637 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1638 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1639 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1640 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1641 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1642 /* init cursors */ 1643 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1644 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1645 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1646 /* init appearance */ 1647 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1648 for (i = 0; i < LENGTH(colors); i++) 1649 scheme[i] = drw_scm_create(drw, colors[i], 3); 1650 /* init bars */ 1651 updatebars(); 1652 updatestatus(); 1653 /* supporting window for NetWMCheck */ 1654 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1655 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1656 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1657 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1658 PropModeReplace, (unsigned char *) "dwm", 3); 1659 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1660 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1661 /* EWMH support per view */ 1662 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1663 PropModeReplace, (unsigned char *) netatom, NetLast); 1664 XDeleteProperty(dpy, root, netatom[NetClientList]); 1665 /* select events */ 1666 wa.cursor = cursor[CurNormal]->cursor; 1667 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1668 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1669 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1670 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1671 XSelectInput(dpy, root, wa.event_mask); 1672 grabkeys(); 1673 focus(NULL); 1674 } 1675 1676 1677 void 1678 seturgent(Client *c, int urg) 1679 { 1680 XWMHints *wmh; 1681 1682 c->isurgent = urg; 1683 if (!(wmh = XGetWMHints(dpy, c->win))) 1684 return; 1685 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1686 XSetWMHints(dpy, c->win, wmh); 1687 XFree(wmh); 1688 } 1689 1690 void 1691 showhide(Client *c) 1692 { 1693 if (!c) 1694 return; 1695 if (ISVISIBLE(c)) { 1696 /* show clients top down */ 1697 XMoveWindow(dpy, c->win, c->x, c->y); 1698 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen) 1699 resize(c, c->x, c->y, c->w, c->h, 0); 1700 showhide(c->snext); 1701 } else { 1702 /* hide clients bottom up */ 1703 showhide(c->snext); 1704 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1705 } 1706 } 1707 1708 void 1709 sigchld(int unused) 1710 { 1711 if (signal(SIGCHLD, sigchld) == SIG_ERR) 1712 die("can't install SIGCHLD handler:"); 1713 while (0 < waitpid(-1, NULL, WNOHANG)); 1714 } 1715 1716 void 1717 spawn(const Arg *arg) 1718 { 1719 if (arg->v == dmenucmd) 1720 dmenumon[0] = '0' + selmon->num; 1721 if (fork() == 0) { 1722 if (dpy) 1723 close(ConnectionNumber(dpy)); 1724 setsid(); 1725 execvp(((char **)arg->v)[0], (char **)arg->v); 1726 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]); 1727 perror(" failed"); 1728 exit(EXIT_SUCCESS); 1729 } 1730 } 1731 1732 void 1733 tag(const Arg *arg) 1734 { 1735 if (selmon->sel && arg->ui & TAGMASK) { 1736 selmon->sel->tags = arg->ui & TAGMASK; 1737 focus(NULL); 1738 arrange(selmon); 1739 } 1740 } 1741 1742 void 1743 tagmon(const Arg *arg) 1744 { 1745 if (!selmon->sel || !mons->next) 1746 return; 1747 sendmon(selmon->sel, dirtomon(arg->i)); 1748 } 1749 1750 void 1751 tile(Monitor *m) 1752 { 1753 unsigned int i, n, h, mw, my, ty; 1754 Client *c; 1755 1756 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++); 1757 if (n == 0) 1758 return; 1759 1760 if (n > m->nmaster) 1761 mw = m->nmaster ? m->ww * m->mfact : 0; 1762 else 1763 mw = m->ww; 1764 for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) 1765 if (i < m->nmaster) { 1766 h = (m->wh - my) / (MIN(n, m->nmaster) - i); 1767 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0); 1768 if (my + HEIGHT(c) < m->wh) 1769 my += HEIGHT(c); 1770 } else { 1771 h = (m->wh - ty) / (n - i); 1772 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0); 1773 if (ty + HEIGHT(c) < m->wh) 1774 ty += HEIGHT(c); 1775 } 1776 } 1777 1778 void 1779 togglebar(const Arg *arg) 1780 { 1781 selmon->showbar = !selmon->showbar; 1782 updatebarpos(selmon); 1783 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1784 arrange(selmon); 1785 } 1786 1787 void 1788 togglefloating(const Arg *arg) 1789 { 1790 if (!selmon->sel) 1791 return; 1792 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */ 1793 return; 1794 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed; 1795 if (selmon->sel->isfloating) 1796 resize(selmon->sel, selmon->sel->x, selmon->sel->y, 1797 selmon->sel->w, selmon->sel->h, 0); 1798 arrange(selmon); 1799 } 1800 1801 void 1802 toggletag(const Arg *arg) 1803 { 1804 unsigned int newtags; 1805 1806 if (!selmon->sel) 1807 return; 1808 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1809 if (newtags) { 1810 selmon->sel->tags = newtags; 1811 focus(NULL); 1812 arrange(selmon); 1813 } 1814 } 1815 1816 void 1817 toggleview(const Arg *arg) 1818 { 1819 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1820 1821 if (newtagset) { 1822 selmon->tagset[selmon->seltags] = newtagset; 1823 focus(NULL); 1824 arrange(selmon); 1825 } 1826 } 1827 1828 void 1829 unfocus(Client *c, int setfocus) 1830 { 1831 if (!c) 1832 return; 1833 grabbuttons(c, 0); 1834 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1835 if (setfocus) { 1836 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1837 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1838 } 1839 } 1840 1841 void 1842 unmanage(Client *c, int destroyed) 1843 { 1844 Monitor *m = c->mon; 1845 XWindowChanges wc; 1846 1847 if (c->swallowing) { 1848 unswallow(c); 1849 return; 1850 } 1851 1852 Client *s = swallowingclient(c->win); 1853 if (s) { 1854 free(s->swallowing); 1855 s->swallowing = NULL; 1856 arrange(m); 1857 focus(NULL); 1858 return; 1859 } 1860 1861 detach(c); 1862 detachstack(c); 1863 if (!destroyed) { 1864 wc.border_width = c->oldbw; 1865 XGrabServer(dpy); /* avoid race conditions */ 1866 XSetErrorHandler(xerrordummy); 1867 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1868 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1869 setclientstate(c, WithdrawnState); 1870 XSync(dpy, False); 1871 XSetErrorHandler(xerror); 1872 XUngrabServer(dpy); 1873 } 1874 free(c); 1875 1876 if (!s) { 1877 arrange(m); 1878 focus(NULL); 1879 updateclientlist(); 1880 } 1881 } 1882 1883 void 1884 unmapnotify(XEvent *e) 1885 { 1886 Client *c; 1887 XUnmapEvent *ev = &e->xunmap; 1888 1889 if ((c = wintoclient(ev->window))) { 1890 if (ev->send_event) 1891 setclientstate(c, WithdrawnState); 1892 else 1893 unmanage(c, 0); 1894 } 1895 } 1896 1897 void 1898 updatebars(void) 1899 { 1900 Monitor *m; 1901 XSetWindowAttributes wa = { 1902 .override_redirect = True, 1903 .background_pixmap = ParentRelative, 1904 .event_mask = ButtonPressMask|ExposureMask 1905 }; 1906 XClassHint ch = {"dwm", "dwm"}; 1907 for (m = mons; m; m = m->next) { 1908 if (m->barwin) 1909 continue; 1910 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1911 CopyFromParent, DefaultVisual(dpy, screen), 1912 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1913 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1914 XMapRaised(dpy, m->barwin); 1915 XSetClassHint(dpy, m->barwin, &ch); 1916 } 1917 } 1918 1919 void 1920 updatebarpos(Monitor *m) 1921 { 1922 m->wy = m->my; 1923 m->wh = m->mh; 1924 if (m->showbar) { 1925 m->wh -= bh; 1926 m->by = m->topbar ? m->wy : m->wy + m->wh; 1927 m->wy = m->topbar ? m->wy + bh : m->wy; 1928 } else 1929 m->by = -bh; 1930 } 1931 1932 void 1933 updateclientlist() 1934 { 1935 Client *c; 1936 Monitor *m; 1937 1938 XDeleteProperty(dpy, root, netatom[NetClientList]); 1939 for (m = mons; m; m = m->next) 1940 for (c = m->clients; c; c = c->next) 1941 XChangeProperty(dpy, root, netatom[NetClientList], 1942 XA_WINDOW, 32, PropModeAppend, 1943 (unsigned char *) &(c->win), 1); 1944 } 1945 1946 int 1947 updategeom(void) 1948 { 1949 int dirty = 0; 1950 1951 #ifdef XINERAMA 1952 if (XineramaIsActive(dpy)) { 1953 int i, j, n, nn; 1954 Client *c; 1955 Monitor *m; 1956 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1957 XineramaScreenInfo *unique = NULL; 1958 1959 for (n = 0, m = mons; m; m = m->next, n++); 1960 /* only consider unique geometries as separate screens */ 1961 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1962 for (i = 0, j = 0; i < nn; i++) 1963 if (isuniquegeom(unique, j, &info[i])) 1964 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1965 XFree(info); 1966 nn = j; 1967 if (n <= nn) { /* new monitors available */ 1968 for (i = 0; i < (nn - n); i++) { 1969 for (m = mons; m && m->next; m = m->next); 1970 if (m) 1971 m->next = createmon(); 1972 else 1973 mons = createmon(); 1974 } 1975 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 1976 if (i >= n 1977 || unique[i].x_org != m->mx || unique[i].y_org != m->my 1978 || unique[i].width != m->mw || unique[i].height != m->mh) 1979 { 1980 dirty = 1; 1981 m->num = i; 1982 m->mx = m->wx = unique[i].x_org; 1983 m->my = m->wy = unique[i].y_org; 1984 m->mw = m->ww = unique[i].width; 1985 m->mh = m->wh = unique[i].height; 1986 updatebarpos(m); 1987 } 1988 } else { /* less monitors available nn < n */ 1989 for (i = nn; i < n; i++) { 1990 for (m = mons; m && m->next; m = m->next); 1991 while ((c = m->clients)) { 1992 dirty = 1; 1993 m->clients = c->next; 1994 detachstack(c); 1995 c->mon = mons; 1996 attach(c); 1997 attachstack(c); 1998 } 1999 if (m == selmon) 2000 selmon = mons; 2001 cleanupmon(m); 2002 } 2003 } 2004 free(unique); 2005 } else 2006 #endif /* XINERAMA */ 2007 { /* default monitor setup */ 2008 if (!mons) 2009 mons = createmon(); 2010 if (mons->mw != sw || mons->mh != sh) { 2011 dirty = 1; 2012 mons->mw = mons->ww = sw; 2013 mons->mh = mons->wh = sh; 2014 updatebarpos(mons); 2015 } 2016 } 2017 if (dirty) { 2018 selmon = mons; 2019 selmon = wintomon(root); 2020 } 2021 return dirty; 2022 } 2023 2024 void 2025 updatenumlockmask(void) 2026 { 2027 unsigned int i, j; 2028 XModifierKeymap *modmap; 2029 2030 numlockmask = 0; 2031 modmap = XGetModifierMapping(dpy); 2032 for (i = 0; i < 8; i++) 2033 for (j = 0; j < modmap->max_keypermod; j++) 2034 if (modmap->modifiermap[i * modmap->max_keypermod + j] 2035 == XKeysymToKeycode(dpy, XK_Num_Lock)) 2036 numlockmask = (1 << i); 2037 XFreeModifiermap(modmap); 2038 } 2039 2040 void 2041 updatesizehints(Client *c) 2042 { 2043 long msize; 2044 XSizeHints size; 2045 2046 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 2047 /* size is uninitialized, ensure that size.flags aren't used */ 2048 size.flags = PSize; 2049 if (size.flags & PBaseSize) { 2050 c->basew = size.base_width; 2051 c->baseh = size.base_height; 2052 } else if (size.flags & PMinSize) { 2053 c->basew = size.min_width; 2054 c->baseh = size.min_height; 2055 } else 2056 c->basew = c->baseh = 0; 2057 if (size.flags & PResizeInc) { 2058 c->incw = size.width_inc; 2059 c->inch = size.height_inc; 2060 } else 2061 c->incw = c->inch = 0; 2062 if (size.flags & PMaxSize) { 2063 c->maxw = size.max_width; 2064 c->maxh = size.max_height; 2065 } else 2066 c->maxw = c->maxh = 0; 2067 if (size.flags & PMinSize) { 2068 c->minw = size.min_width; 2069 c->minh = size.min_height; 2070 } else if (size.flags & PBaseSize) { 2071 c->minw = size.base_width; 2072 c->minh = size.base_height; 2073 } else 2074 c->minw = c->minh = 0; 2075 if (size.flags & PAspect) { 2076 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 2077 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 2078 } else 2079 c->maxa = c->mina = 0.0; 2080 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 2081 } 2082 2083 void 2084 updatestatus(void) 2085 { 2086 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 2087 strcpy(stext, "dwm-"VERSION); 2088 drawbar(selmon); 2089 } 2090 2091 void 2092 updatetitle(Client *c) 2093 { 2094 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 2095 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 2096 if (c->name[0] == '\0') /* hack to mark broken clients */ 2097 strcpy(c->name, broken); 2098 } 2099 2100 void 2101 updatewindowtype(Client *c) 2102 { 2103 Atom state = getatomprop(c, netatom[NetWMState]); 2104 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2105 2106 if (state == netatom[NetWMFullscreen]) 2107 setfullscreen(c, 1); 2108 if (wtype == netatom[NetWMWindowTypeDialog]) 2109 c->isfloating = 1; 2110 } 2111 2112 void 2113 updatewmhints(Client *c) 2114 { 2115 XWMHints *wmh; 2116 2117 if ((wmh = XGetWMHints(dpy, c->win))) { 2118 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2119 wmh->flags &= ~XUrgencyHint; 2120 XSetWMHints(dpy, c->win, wmh); 2121 } else 2122 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2123 if (wmh->flags & InputHint) 2124 c->neverfocus = !wmh->input; 2125 else 2126 c->neverfocus = 0; 2127 XFree(wmh); 2128 } 2129 } 2130 2131 void 2132 view(const Arg *arg) 2133 { 2134 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2135 return; 2136 selmon->seltags ^= 1; /* toggle sel tagset */ 2137 if (arg->ui & TAGMASK) 2138 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2139 focus(NULL); 2140 arrange(selmon); 2141 } 2142 2143 pid_t 2144 winpid(Window w) 2145 { 2146 2147 pid_t result = 0; 2148 2149 #ifdef __linux__ 2150 xcb_res_client_id_spec_t spec = {0}; 2151 spec.client = w; 2152 spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID; 2153 2154 xcb_generic_error_t *e = NULL; 2155 xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec); 2156 xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e); 2157 2158 if (!r) 2159 return (pid_t)0; 2160 2161 xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r); 2162 for (; i.rem; xcb_res_client_id_value_next(&i)) { 2163 spec = i.data->spec; 2164 if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) { 2165 uint32_t *t = xcb_res_client_id_value_value(i.data); 2166 result = *t; 2167 break; 2168 } 2169 } 2170 2171 free(r); 2172 2173 if (result == (pid_t)-1) 2174 result = 0; 2175 2176 #endif /* __linux__ */ 2177 2178 #ifdef __OpenBSD__ 2179 Atom type; 2180 int format; 2181 unsigned long len, bytes; 2182 unsigned char *prop; 2183 pid_t ret; 2184 2185 if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1, False, AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success || !prop) 2186 return 0; 2187 2188 ret = *(pid_t*)prop; 2189 XFree(prop); 2190 result = ret; 2191 2192 #endif /* __OpenBSD__ */ 2193 return result; 2194 } 2195 2196 pid_t 2197 getparentprocess(pid_t p) 2198 { 2199 unsigned int v = 0; 2200 2201 #ifdef __linux__ 2202 FILE *f; 2203 char buf[256]; 2204 snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p); 2205 2206 if (!(f = fopen(buf, "r"))) 2207 return 0; 2208 2209 fscanf(f, "%*u %*s %*c %u", &v); 2210 fclose(f); 2211 #endif /* __linux__*/ 2212 2213 #ifdef __OpenBSD__ 2214 int n; 2215 kvm_t *kd; 2216 struct kinfo_proc *kp; 2217 2218 kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL); 2219 if (!kd) 2220 return 0; 2221 2222 kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n); 2223 v = kp->p_ppid; 2224 #endif /* __OpenBSD__ */ 2225 2226 return (pid_t)v; 2227 } 2228 2229 int 2230 isdescprocess(pid_t p, pid_t c) 2231 { 2232 while (p != c && c != 0) 2233 c = getparentprocess(c); 2234 2235 return (int)c; 2236 } 2237 2238 Client * 2239 termforwin(const Client *w) 2240 { 2241 Client *c; 2242 Monitor *m; 2243 2244 if (!w->pid || w->isterminal) 2245 return NULL; 2246 2247 for (m = mons; m; m = m->next) { 2248 for (c = m->clients; c; c = c->next) { 2249 if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid)) 2250 return c; 2251 } 2252 } 2253 2254 return NULL; 2255 } 2256 2257 Client * 2258 swallowingclient(Window w) 2259 { 2260 Client *c; 2261 Monitor *m; 2262 2263 for (m = mons; m; m = m->next) { 2264 for (c = m->clients; c; c = c->next) { 2265 if (c->swallowing && c->swallowing->win == w) 2266 return c; 2267 } 2268 } 2269 2270 return NULL; 2271 } 2272 2273 Client * 2274 wintoclient(Window w) 2275 { 2276 Client *c; 2277 Monitor *m; 2278 2279 for (m = mons; m; m = m->next) 2280 for (c = m->clients; c; c = c->next) 2281 if (c->win == w) 2282 return c; 2283 return NULL; 2284 } 2285 2286 Monitor * 2287 wintomon(Window w) 2288 { 2289 int x, y; 2290 Client *c; 2291 Monitor *m; 2292 2293 if (w == root && getrootptr(&x, &y)) 2294 return recttomon(x, y, 1, 1); 2295 for (m = mons; m; m = m->next) 2296 if (w == m->barwin) 2297 return m; 2298 if ((c = wintoclient(w))) 2299 return c->mon; 2300 return selmon; 2301 } 2302 2303 /* There's no way to check accesses to destroyed windows, thus those cases are 2304 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2305 * default error handler, which may call exit. */ 2306 int 2307 xerror(Display *dpy, XErrorEvent *ee) 2308 { 2309 if (ee->error_code == BadWindow 2310 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2311 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2312 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2313 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2314 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2315 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2316 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2317 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2318 return 0; 2319 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2320 ee->request_code, ee->error_code); 2321 return xerrorxlib(dpy, ee); /* may call exit */ 2322 } 2323 2324 int 2325 xerrordummy(Display *dpy, XErrorEvent *ee) 2326 { 2327 return 0; 2328 } 2329 2330 /* Startup Error handler to check if another window manager 2331 * is already running. */ 2332 int 2333 xerrorstart(Display *dpy, XErrorEvent *ee) 2334 { 2335 die("dwm: another window manager is already running"); 2336 return -1; 2337 } 2338 2339 void 2340 zoom(const Arg *arg) 2341 { 2342 Client *c = selmon->sel; 2343 2344 if (!selmon->lt[selmon->sellt]->arrange 2345 || (selmon->sel && selmon->sel->isfloating)) 2346 return; 2347 if (c == nexttiled(selmon->clients)) 2348 if (!c || !(c = nexttiled(c->next))) 2349 return; 2350 pop(c); 2351 } 2352 2353 int 2354 main(int argc, char *argv[]) 2355 { 2356 if (argc == 2 && !strcmp("-v", argv[1])) 2357 die("dwm-"VERSION); 2358 else if (argc != 1) 2359 die("usage: dwm [-v]"); 2360 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2361 fputs("warning: no locale support\n", stderr); 2362 if (!(dpy = XOpenDisplay(NULL))) 2363 die("dwm: cannot open display"); 2364 if (!(xcon = XGetXCBConnection(dpy))) 2365 die("dwm: cannot get xcb connection\n"); 2366 checkotherwm(); 2367 setup(); 2368 #ifdef __OpenBSD__ 2369 if (pledge("stdio rpath proc exec ps", NULL) == -1) 2370 die("pledge"); 2371 #endif /* __OpenBSD__ */ 2372 scan(); 2373 run(); 2374 cleanup(); 2375 XCloseDisplay(dpy); 2376 return EXIT_SUCCESS; 2377 }