dwm.c (55549B)
1 /* See LICENSE file for copyright and license details. 2 * 3 * dynamic window manager is designed like any other X client as well. It is 4 * driven through handling X events. In contrast to other X clients, a window 5 * manager selects for SubstructureRedirectMask on the root window, to receive 6 * events about window (dis-)appearance. Only one X connection at a time is 7 * allowed to select for this event mask. 8 * 9 * The event handlers of dwm are organized in an array which is accessed 10 * whenever a new event has been fetched. This allows event dispatching 11 * in O(1) time. 12 * 13 * Each child of the root window is called a client, except windows which have 14 * set the override_redirect flag. Clients are organized in a linked client 15 * list on each monitor, the focus history is remembered through a stack list 16 * on each monitor. Each client contains a bit array to indicate the tags of a 17 * client. 18 * 19 * Keys and tagging rules are organized as arrays and defined in config.h. 20 * 21 * To understand everything else, start reading main(). 22 */ 23 #include <errno.h> 24 #include <locale.h> 25 #include <signal.h> 26 #include <stdarg.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 #include <sys/types.h> 32 #include <sys/wait.h> 33 #include <X11/cursorfont.h> 34 #include <X11/keysym.h> 35 #include <X11/Xatom.h> 36 #include <X11/Xlib.h> 37 #include <X11/Xproto.h> 38 #include <X11/Xutil.h> 39 #ifdef XINERAMA 40 #include <X11/extensions/Xinerama.h> 41 #endif /* XINERAMA */ 42 #include <X11/Xft/Xft.h> 43 44 #include "drw.h" 45 #include "util.h" 46 47 /* macros */ 48 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask) 49 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask)) 50 #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \ 51 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy))) 52 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags])) 53 #define LENGTH(X) (sizeof X / sizeof X[0]) 54 #define MOUSEMASK (BUTTONMASK|PointerMotionMask) 55 #define WIDTH(X) ((X)->w + 2 * (X)->bw) 56 #define HEIGHT(X) ((X)->h + 2 * (X)->bw) 57 #define NUMTAGS (LENGTH(tags) + LENGTH(scratchpads)) 58 #define TAGMASK ((1 << NUMTAGS) - 1) 59 #define SPTAG(i) ((1 << LENGTH(tags)) << (i)) 60 #define SPTAGMASK (((1 << LENGTH(scratchpads))-1) << LENGTH(tags)) 61 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 62 63 /* enums */ 64 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ 65 enum { SchemeNorm, SchemeSel, SchemeWarn, SchemeUrgent }; /* color schemes */ 66 enum { NetSupported, NetWMName, NetWMState, NetWMCheck, 67 NetWMFullscreen, NetActiveWindow, NetWMWindowType, 68 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ 69 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */ 70 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, 71 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */ 72 73 typedef union { 74 int i; 75 unsigned int ui; 76 float f; 77 const void *v; 78 } Arg; 79 80 typedef struct { 81 unsigned int click; 82 unsigned int mask; 83 unsigned int button; 84 void (*func)(const Arg *arg); 85 const Arg arg; 86 } Button; 87 88 typedef struct Monitor Monitor; 89 typedef struct Client Client; 90 struct Client { 91 char name[256]; 92 float mina, maxa; 93 int x, y, w, h; 94 int oldx, oldy, oldw, oldh; 95 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid; 96 int bw, oldbw; 97 unsigned int tags; 98 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen; 99 Client *next; 100 Client *snext; 101 Monitor *mon; 102 Window win; 103 }; 104 105 typedef struct { 106 unsigned int mod; 107 KeySym keysym; 108 void (*func)(const Arg *); 109 const Arg arg; 110 } Key; 111 112 typedef struct { 113 const char *symbol; 114 void (*arrange)(Monitor *); 115 } Layout; 116 117 struct Monitor { 118 char ltsymbol[16]; 119 float mfact; 120 int nmaster; 121 int num; 122 int by; /* bar geometry */ 123 int mx, my, mw, mh; /* screen size */ 124 int wx, wy, ww, wh; /* window area */ 125 int gappih; /* horizontal gap between windows */ 126 int gappiv; /* vertical gap between windows */ 127 int gappoh; /* horizontal outer gaps */ 128 int gappov; /* vertical outer gaps */ 129 unsigned int seltags; 130 unsigned int sellt; 131 unsigned int tagset[2]; 132 int showbar; 133 int topbar; 134 Client *clients; 135 Client *sel; 136 Client *stack; 137 Monitor *next; 138 Window barwin; 139 const Layout *lt[2]; 140 }; 141 142 typedef struct { 143 const char *class; 144 const char *instance; 145 const char *title; 146 unsigned int tags; 147 int isfloating; 148 int monitor; 149 } Rule; 150 151 /* function declarations */ 152 static void applyrules(Client *c); 153 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact); 154 static void arrange(Monitor *m); 155 static void arrangemon(Monitor *m); 156 static void attach(Client *c); 157 static void attachstack(Client *c); 158 static void buttonpress(XEvent *e); 159 static void checkotherwm(void); 160 static void cleanup(void); 161 static void cleanupmon(Monitor *mon); 162 static void clientmessage(XEvent *e); 163 static void configure(Client *c); 164 static void configurenotify(XEvent *e); 165 static void configurerequest(XEvent *e); 166 static Monitor *createmon(void); 167 static void destroynotify(XEvent *e); 168 static void detach(Client *c); 169 static void detachstack(Client *c); 170 static Monitor *dirtomon(int dir); 171 static void drawbar(Monitor *m); 172 static void drawbars(void); 173 static void enternotify(XEvent *e); 174 static void expose(XEvent *e); 175 static void focus(Client *c); 176 static void focusin(XEvent *e); 177 static void focusmon(const Arg *arg); 178 static void focusstack(const Arg *arg); 179 static Atom getatomprop(Client *c, Atom prop); 180 static int getrootptr(int *x, int *y); 181 static long getstate(Window w); 182 static int gettextprop(Window w, Atom atom, char *text, unsigned int size); 183 static void grabbuttons(Client *c, int focused); 184 static void grabkeys(void); 185 static void incnmaster(const Arg *arg); 186 static void keypress(XEvent *e); 187 static void killclient(const Arg *arg); 188 static void manage(Window w, XWindowAttributes *wa); 189 static void mappingnotify(XEvent *e); 190 static void maprequest(XEvent *e); 191 static void monocle(Monitor *m); 192 static void motionnotify(XEvent *e); 193 static void movemouse(const Arg *arg); 194 static Client *nexttiled(Client *c); 195 static void pop(Client *c); 196 static void propertynotify(XEvent *e); 197 static void quit(const Arg *arg); 198 static Monitor *recttomon(int x, int y, int w, int h); 199 static void resize(Client *c, int x, int y, int w, int h, int interact); 200 static void resizeclient(Client *c, int x, int y, int w, int h); 201 static void resizemouse(const Arg *arg); 202 static void restack(Monitor *m); 203 static void run(void); 204 static void scan(void); 205 static int sendevent(Client *c, Atom proto); 206 static void sendmon(Client *c, Monitor *m); 207 static void setclientstate(Client *c, long state); 208 static void setfocus(Client *c); 209 static void setfullscreen(Client *c, int fullscreen); 210 static void setlayout(const Arg *arg); 211 static void nextlayout(const Arg *arg); 212 static void prevlayout(const Arg *arg); 213 static void setmfact(const Arg *arg); 214 static void setup(void); 215 static void seturgent(Client *c, int urg); 216 static void showhide(Client *c); 217 static void spawn(const Arg *arg); 218 static void tag(const Arg *arg); 219 static void tagmon(const Arg *arg); 220 static void togglebar(const Arg *arg); 221 static void togglefakefull(const Arg *arg); 222 static void togglefloating(const Arg *arg); 223 static void togglefullscr(const Arg *arg); 224 static void togglescratch(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 /* variables */ 249 static const char broken[] = "broken"; 250 static char stext[256]; 251 static int screen; 252 static int sw, sh; /* X display screen geometry width, height */ 253 static int bh; /* bar height */ 254 static int lrpad; /* sum of left and right padding for text */ 255 static int (*xerrorxlib)(Display *, XErrorEvent *); 256 static unsigned int numlockmask = 0; 257 static void (*handler[LASTEvent]) (XEvent *) = { 258 [ButtonPress] = buttonpress, 259 [ClientMessage] = clientmessage, 260 [ConfigureRequest] = configurerequest, 261 [ConfigureNotify] = configurenotify, 262 [DestroyNotify] = destroynotify, 263 [EnterNotify] = enternotify, 264 [Expose] = expose, 265 [FocusIn] = focusin, 266 [KeyPress] = keypress, 267 [MappingNotify] = mappingnotify, 268 [MapRequest] = maprequest, 269 [MotionNotify] = motionnotify, 270 [PropertyNotify] = propertynotify, 271 [UnmapNotify] = unmapnotify 272 }; 273 static Atom wmatom[WMLast], netatom[NetLast]; 274 static int running = 1; 275 static Cur *cursor[CurLast]; 276 static Clr **scheme; 277 static Display *dpy; 278 static Drw *drw; 279 static Monitor *mons, *selmon; 280 static Window root, wmcheckwin; 281 282 /* configuration, allows nested code to access above variables */ 283 #include "config.h" 284 285 /* compile-time check if all tags fit into an unsigned int bit array. */ 286 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; 287 288 /* function implementations */ 289 void 290 applyrules(Client *c) 291 { 292 const char *class, *instance; 293 unsigned int i; 294 const Rule *r; 295 Monitor *m; 296 XClassHint ch = { NULL, NULL }; 297 298 /* rule matching */ 299 c->isfloating = 0; 300 c->tags = 0; 301 XGetClassHint(dpy, c->win, &ch); 302 class = ch.res_class ? ch.res_class : broken; 303 instance = ch.res_name ? ch.res_name : broken; 304 305 for (i = 0; i < LENGTH(rules); i++) { 306 r = &rules[i]; 307 if ((!r->title || strstr(c->name, r->title)) 308 && (!r->class || strstr(class, r->class)) 309 && (!r->instance || strstr(instance, r->instance))) 310 { 311 c->isfloating = r->isfloating; 312 c->tags |= r->tags; 313 if ((r->tags & SPTAGMASK) && r->isfloating) { 314 c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2); 315 c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2); 316 } 317 318 for (m = mons; m && m->num != r->monitor; m = m->next); 319 if (m) 320 c->mon = m; 321 } 322 } 323 if (ch.res_class) 324 XFree(ch.res_class); 325 if (ch.res_name) 326 XFree(ch.res_name); 327 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : (c->mon->tagset[c->mon->seltags] & ~SPTAGMASK); 328 } 329 330 int 331 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) 332 { 333 int baseismin; 334 Monitor *m = c->mon; 335 336 /* set minimum possible */ 337 *w = MAX(1, *w); 338 *h = MAX(1, *h); 339 if (interact) { 340 if (*x > sw) 341 *x = sw - WIDTH(c); 342 if (*y > sh) 343 *y = sh - HEIGHT(c); 344 if (*x + *w + 2 * c->bw < 0) 345 *x = 0; 346 if (*y + *h + 2 * c->bw < 0) 347 *y = 0; 348 } else { 349 if (*x >= m->wx + m->ww) 350 *x = m->wx + m->ww - WIDTH(c); 351 if (*y >= m->wy + m->wh) 352 *y = m->wy + m->wh - HEIGHT(c); 353 if (*x + *w + 2 * c->bw <= m->wx) 354 *x = m->wx; 355 if (*y + *h + 2 * c->bw <= m->wy) 356 *y = m->wy; 357 } 358 if (*h < bh) 359 *h = bh; 360 if (*w < bh) 361 *w = bh; 362 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { 363 if (!c->hintsvalid) 364 updatesizehints(c); 365 /* see last two sentences in ICCCM 4.1.2.3 */ 366 baseismin = c->basew == c->minw && c->baseh == c->minh; 367 if (!baseismin) { /* temporarily remove base dimensions */ 368 *w -= c->basew; 369 *h -= c->baseh; 370 } 371 /* adjust for aspect limits */ 372 if (c->mina > 0 && c->maxa > 0) { 373 if (c->maxa < (float)*w / *h) 374 *w = *h * c->maxa + 0.5; 375 else if (c->mina < (float)*h / *w) 376 *h = *w * c->mina + 0.5; 377 } 378 if (baseismin) { /* increment calculation requires this */ 379 *w -= c->basew; 380 *h -= c->baseh; 381 } 382 /* adjust for increment value */ 383 if (c->incw) 384 *w -= *w % c->incw; 385 if (c->inch) 386 *h -= *h % c->inch; 387 /* restore base dimensions */ 388 *w = MAX(*w + c->basew, c->minw); 389 *h = MAX(*h + c->baseh, c->minh); 390 if (c->maxw) 391 *w = MIN(*w, c->maxw); 392 if (c->maxh) 393 *h = MIN(*h, c->maxh); 394 } 395 return *x != c->x || *y != c->y || *w != c->w || *h != c->h; 396 } 397 398 void 399 arrange(Monitor *m) 400 { 401 if (m) 402 showhide(m->stack); 403 else for (m = mons; m; m = m->next) 404 showhide(m->stack); 405 if (m) { 406 arrangemon(m); 407 restack(m); 408 } else for (m = mons; m; m = m->next) 409 arrangemon(m); 410 } 411 412 void 413 arrangemon(Monitor *m) 414 { 415 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol); 416 if (m->lt[m->sellt]->arrange) 417 m->lt[m->sellt]->arrange(m); 418 } 419 420 void 421 attach(Client *c) 422 { 423 c->next = c->mon->clients; 424 c->mon->clients = c; 425 } 426 427 void 428 attachstack(Client *c) 429 { 430 c->snext = c->mon->stack; 431 c->mon->stack = c; 432 } 433 434 void 435 buttonpress(XEvent *e) 436 { 437 unsigned int i, x, click, occ = 0; 438 Arg arg = {0}; 439 Client *c; 440 Monitor *m; 441 XButtonPressedEvent *ev = &e->xbutton; 442 443 click = ClkRootWin; 444 /* focus monitor if necessary */ 445 if ((m = wintomon(ev->window)) && m != selmon) { 446 unfocus(selmon->sel, 1); 447 selmon = m; 448 focus(NULL); 449 } 450 if (ev->window == selmon->barwin) { 451 i = x = 0; 452 for (c = m->clients; c; c = c->next) 453 occ |= c->tags == 255 ? 0 : c->tags; 454 do { 455 /* do not reserve space for vacant tags */ 456 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i)) 457 continue; 458 x += TEXTW(tags[i]); 459 } while (ev->x >= x && ++i < LENGTH(tags)); 460 if (i < LENGTH(tags)) { 461 click = ClkTagBar; 462 arg.ui = 1 << i; 463 } else if (ev->x < x + TEXTW(selmon->ltsymbol)) 464 click = ClkLtSymbol; 465 else if (ev->x > selmon->ww - (int)TEXTW(stext)) 466 click = ClkStatusText; 467 else 468 click = ClkWinTitle; 469 } else if ((c = wintoclient(ev->window))) { 470 focus(c); 471 restack(selmon); 472 XAllowEvents(dpy, ReplayPointer, CurrentTime); 473 click = ClkClientWin; 474 } 475 for (i = 0; i < LENGTH(buttons); i++) 476 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button 477 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) 478 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); 479 } 480 481 void 482 checkotherwm(void) 483 { 484 xerrorxlib = XSetErrorHandler(xerrorstart); 485 /* this causes an error if some other window manager is running */ 486 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); 487 XSync(dpy, False); 488 XSetErrorHandler(xerror); 489 XSync(dpy, False); 490 } 491 492 void 493 cleanup(void) 494 { 495 Arg a = {.ui = ~0}; 496 Layout foo = { "", NULL }; 497 Monitor *m; 498 size_t i; 499 500 view(&a); 501 selmon->lt[selmon->sellt] = &foo; 502 for (m = mons; m; m = m->next) 503 while (m->stack) 504 unmanage(m->stack, 0); 505 XUngrabKey(dpy, AnyKey, AnyModifier, root); 506 while (mons) 507 cleanupmon(mons); 508 for (i = 0; i < CurLast; i++) 509 drw_cur_free(drw, cursor[i]); 510 for (i = 0; i < LENGTH(colors); i++) 511 free(scheme[i]); 512 free(scheme); 513 XDestroyWindow(dpy, wmcheckwin); 514 drw_free(drw); 515 XSync(dpy, False); 516 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); 517 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 518 } 519 520 void 521 cleanupmon(Monitor *mon) 522 { 523 Monitor *m; 524 525 if (mon == mons) 526 mons = mons->next; 527 else { 528 for (m = mons; m && m->next != mon; m = m->next); 529 m->next = mon->next; 530 } 531 XUnmapWindow(dpy, mon->barwin); 532 XDestroyWindow(dpy, mon->barwin); 533 free(mon); 534 } 535 536 void 537 clientmessage(XEvent *e) 538 { 539 XClientMessageEvent *cme = &e->xclient; 540 Client *c = wintoclient(cme->window); 541 542 if (!c) 543 return; 544 if (cme->message_type == netatom[NetWMState]) { 545 if (cme->data.l[1] == netatom[NetWMFullscreen] 546 || cme->data.l[2] == netatom[NetWMFullscreen]) 547 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */ 548 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen))); 549 } else if (cme->message_type == netatom[NetActiveWindow]) { 550 if (c != selmon->sel && !c->isurgent) 551 seturgent(c, 1); 552 } 553 } 554 555 void 556 configure(Client *c) 557 { 558 XConfigureEvent ce; 559 560 ce.type = ConfigureNotify; 561 ce.display = dpy; 562 ce.event = c->win; 563 ce.window = c->win; 564 ce.x = c->x; 565 ce.y = c->y; 566 ce.width = c->w; 567 ce.height = c->h; 568 ce.border_width = c->bw; 569 ce.above = None; 570 ce.override_redirect = False; 571 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); 572 } 573 574 void 575 configurenotify(XEvent *e) 576 { 577 Monitor *m; 578 Client *c; 579 XConfigureEvent *ev = &e->xconfigure; 580 int dirty; 581 582 /* TODO: updategeom handling sucks, needs to be simplified */ 583 if (ev->window == root) { 584 dirty = (sw != ev->width || sh != ev->height); 585 sw = ev->width; 586 sh = ev->height; 587 if (updategeom() || dirty) { 588 drw_resize(drw, sw, bh); 589 updatebars(); 590 for (m = mons; m; m = m->next) { 591 if (!fakefullscreen) 592 for (c = m->clients; c; c = c->next) 593 if (c->isfullscreen) 594 resizeclient(c, m->mx, m->my, m->mw, m->mh); 595 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); 596 } 597 focus(NULL); 598 arrange(NULL); 599 } 600 } 601 } 602 603 void 604 configurerequest(XEvent *e) 605 { 606 Client *c; 607 Monitor *m; 608 XConfigureRequestEvent *ev = &e->xconfigurerequest; 609 XWindowChanges wc; 610 611 if ((c = wintoclient(ev->window))) { 612 if (ev->value_mask & CWBorderWidth) 613 c->bw = ev->border_width; 614 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) { 615 m = c->mon; 616 if (ev->value_mask & CWX) { 617 c->oldx = c->x; 618 c->x = m->mx + ev->x; 619 } 620 if (ev->value_mask & CWY) { 621 c->oldy = c->y; 622 c->y = m->my + ev->y; 623 } 624 if (ev->value_mask & CWWidth) { 625 c->oldw = c->w; 626 c->w = ev->width; 627 } 628 if (ev->value_mask & CWHeight) { 629 c->oldh = c->h; 630 c->h = ev->height; 631 } 632 if ((c->x + c->w) > m->mx + m->mw && c->isfloating) 633 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */ 634 if ((c->y + c->h) > m->my + m->mh && c->isfloating) 635 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */ 636 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight))) 637 configure(c); 638 if (ISVISIBLE(c)) 639 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 640 } else 641 configure(c); 642 } else { 643 wc.x = ev->x; 644 wc.y = ev->y; 645 wc.width = ev->width; 646 wc.height = ev->height; 647 wc.border_width = ev->border_width; 648 wc.sibling = ev->above; 649 wc.stack_mode = ev->detail; 650 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); 651 } 652 XSync(dpy, False); 653 } 654 655 Monitor * 656 createmon(void) 657 { 658 Monitor *m; 659 660 m = ecalloc(1, sizeof(Monitor)); 661 m->tagset[0] = m->tagset[1] = 1; 662 m->mfact = mfact; 663 m->nmaster = nmaster; 664 m->showbar = showbar; 665 m->topbar = topbar; 666 m->gappih = gappih; 667 m->gappiv = gappiv; 668 m->gappoh = gappoh; 669 m->gappov = gappov; 670 m->lt[0] = &layouts[0]; 671 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 672 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); 673 return m; 674 } 675 676 void 677 destroynotify(XEvent *e) 678 { 679 Client *c; 680 XDestroyWindowEvent *ev = &e->xdestroywindow; 681 682 if ((c = wintoclient(ev->window))) 683 unmanage(c, 1); 684 } 685 686 void 687 detach(Client *c) 688 { 689 Client **tc; 690 691 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next); 692 *tc = c->next; 693 } 694 695 void 696 detachstack(Client *c) 697 { 698 Client **tc, *t; 699 700 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext); 701 *tc = c->snext; 702 703 if (c == c->mon->sel) { 704 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext); 705 c->mon->sel = t; 706 } 707 } 708 709 Monitor * 710 dirtomon(int dir) 711 { 712 Monitor *m = NULL; 713 714 if (dir > 0) { 715 if (!(m = selmon->next)) 716 m = mons; 717 } else if (selmon == mons) 718 for (m = mons; m->next; m = m->next); 719 else 720 for (m = mons; m->next != selmon; m = m->next); 721 return m; 722 } 723 724 void 725 drawbar(Monitor *m) 726 { 727 int x, w, tw = 0; 728 int boxs = drw->fonts->h / 9; 729 int boxw = drw->fonts->h / 6 + 2; 730 unsigned int i, occ = 0, urg = 0; 731 char *ts = stext; 732 char *tp = stext; 733 int tx = 0; 734 unsigned int ctmp; 735 Client *c; 736 737 if (!m->showbar) 738 return; 739 740 /* draw status first so it can be overdrawn by tags later */ 741 if (m == selmon) { /* status is only drawn on selected monitor */ 742 drw_setscheme(drw, scheme[SchemeNorm]); 743 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 744 for (;;) { 745 while (*ts > LENGTH(colors)) 746 ts++; 747 748 ctmp = *ts; 749 *ts = '\0'; 750 drw_text(drw, m->ww - tw + tx, 0, tw - tx, bh, 0, tp, 0); 751 tx += TEXTW(tp) - lrpad; 752 if (ctmp == '\0') 753 break; 754 drw_setscheme(drw, scheme[ctmp - 1]); 755 *ts = ctmp; 756 tp = ++ts; 757 } 758 } 759 760 for (c = m->clients; c; c = c->next) { 761 occ |= c->tags == 255 ? 0 : c->tags; 762 if (c->isurgent) 763 urg |= c->tags; 764 } 765 x = 0; 766 for (i = 0; i < LENGTH(tags); i++) { 767 /* do not draw vacant tags */ 768 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i)) 769 continue; 770 771 w = TEXTW(tags[i]); 772 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); 773 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 774 x += w; 775 } 776 w = TEXTW(m->ltsymbol); 777 drw_setscheme(drw, scheme[SchemeNorm]); 778 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 779 780 if ((w = m->ww - tw - x) > bh) { 781 if (m->sel) { 782 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); 783 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 784 if (m->sel->isfloating) 785 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 786 } else { 787 drw_setscheme(drw, scheme[SchemeNorm]); 788 drw_rect(drw, x, 0, w, bh, 1, 1); 789 } 790 } 791 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 792 } 793 794 void 795 drawbars(void) 796 { 797 Monitor *m; 798 799 for (m = mons; m; m = m->next) 800 drawbar(m); 801 } 802 803 void 804 enternotify(XEvent *e) 805 { 806 Client *c; 807 Monitor *m; 808 XCrossingEvent *ev = &e->xcrossing; 809 810 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 811 return; 812 c = wintoclient(ev->window); 813 m = c ? c->mon : wintomon(ev->window); 814 if (m != selmon) { 815 unfocus(selmon->sel, 1); 816 selmon = m; 817 } else if (!c || c == selmon->sel) 818 return; 819 focus(c); 820 } 821 822 void 823 expose(XEvent *e) 824 { 825 Monitor *m; 826 XExposeEvent *ev = &e->xexpose; 827 828 if (ev->count == 0 && (m = wintomon(ev->window))) 829 drawbar(m); 830 } 831 832 void 833 focus(Client *c) 834 { 835 if (!c || !ISVISIBLE(c)) 836 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 837 if (selmon->sel && selmon->sel != c) 838 unfocus(selmon->sel, 0); 839 if (c) { 840 if (c->mon != selmon) 841 selmon = c->mon; 842 if (c->isurgent) 843 seturgent(c, 0); 844 detachstack(c); 845 attachstack(c); 846 grabbuttons(c, 1); 847 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 848 setfocus(c); 849 } else { 850 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 851 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 852 } 853 selmon->sel = c; 854 drawbars(); 855 } 856 857 /* there are some broken focus acquiring clients needing extra handling */ 858 void 859 focusin(XEvent *e) 860 { 861 XFocusChangeEvent *ev = &e->xfocus; 862 863 if (selmon->sel && ev->window != selmon->sel->win) 864 setfocus(selmon->sel); 865 } 866 867 void 868 focusmon(const Arg *arg) 869 { 870 Monitor *m; 871 872 if (!mons->next) 873 return; 874 if ((m = dirtomon(arg->i)) == selmon) 875 return; 876 unfocus(selmon->sel, 0); 877 selmon = m; 878 focus(NULL); 879 } 880 881 void 882 focusstack(const Arg *arg) 883 { 884 Client *c = NULL, *i; 885 886 if (!selmon->sel || (selmon->sel->isfullscreen && !fakefullscreen)) 887 return; 888 if (arg->i > 0) { 889 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 890 if (!c) 891 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 892 } else { 893 for (i = selmon->clients; i != selmon->sel; i = i->next) 894 if (ISVISIBLE(i)) 895 c = i; 896 if (!c) 897 for (; i; i = i->next) 898 if (ISVISIBLE(i)) 899 c = i; 900 } 901 if (c) { 902 focus(c); 903 restack(selmon); 904 } 905 } 906 907 Atom 908 getatomprop(Client *c, Atom prop) 909 { 910 int di; 911 unsigned long dl; 912 unsigned char *p = NULL; 913 Atom da, atom = None; 914 915 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 916 &da, &di, &dl, &dl, &p) == Success && p) { 917 atom = *(Atom *)p; 918 XFree(p); 919 } 920 return atom; 921 } 922 923 int 924 getrootptr(int *x, int *y) 925 { 926 int di; 927 unsigned int dui; 928 Window dummy; 929 930 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui); 931 } 932 933 long 934 getstate(Window w) 935 { 936 int format; 937 long result = -1; 938 unsigned char *p = NULL; 939 unsigned long n, extra; 940 Atom real; 941 942 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], 943 &real, &format, &n, &extra, (unsigned char **)&p) != Success) 944 return -1; 945 if (n != 0) 946 result = *p; 947 XFree(p); 948 return result; 949 } 950 951 int 952 gettextprop(Window w, Atom atom, char *text, unsigned int size) 953 { 954 char **list = NULL; 955 int n; 956 XTextProperty name; 957 958 if (!text || size == 0) 959 return 0; 960 text[0] = '\0'; 961 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems) 962 return 0; 963 if (name.encoding == XA_STRING) { 964 strncpy(text, (char *)name.value, size - 1); 965 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) { 966 strncpy(text, *list, size - 1); 967 XFreeStringList(list); 968 } 969 text[size - 1] = '\0'; 970 XFree(name.value); 971 return 1; 972 } 973 974 void 975 grabbuttons(Client *c, int focused) 976 { 977 updatenumlockmask(); 978 { 979 unsigned int i, j; 980 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 981 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 982 if (!focused) 983 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, 984 BUTTONMASK, GrabModeSync, GrabModeSync, None, None); 985 for (i = 0; i < LENGTH(buttons); i++) 986 if (buttons[i].click == ClkClientWin) 987 for (j = 0; j < LENGTH(modifiers); j++) 988 XGrabButton(dpy, buttons[i].button, 989 buttons[i].mask | modifiers[j], 990 c->win, False, BUTTONMASK, 991 GrabModeAsync, GrabModeSync, None, None); 992 } 993 } 994 995 void 996 grabkeys(void) 997 { 998 updatenumlockmask(); 999 { 1000 unsigned int i, j, k; 1001 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 1002 int start, end, skip; 1003 KeySym *syms; 1004 1005 XUngrabKey(dpy, AnyKey, AnyModifier, root); 1006 XDisplayKeycodes(dpy, &start, &end); 1007 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip); 1008 if (!syms) 1009 return; 1010 for (k = start; k <= end; k++) 1011 for (i = 0; i < LENGTH(keys); i++) 1012 /* skip modifier codes, we do that ourselves */ 1013 if (keys[i].keysym == syms[(k - start) * skip]) 1014 for (j = 0; j < LENGTH(modifiers); j++) 1015 XGrabKey(dpy, k, 1016 keys[i].mod | modifiers[j], 1017 root, True, 1018 GrabModeAsync, GrabModeAsync); 1019 XFree(syms); 1020 } 1021 } 1022 1023 void 1024 incnmaster(const Arg *arg) 1025 { 1026 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); 1027 arrange(selmon); 1028 } 1029 1030 #ifdef XINERAMA 1031 static int 1032 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) 1033 { 1034 while (n--) 1035 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org 1036 && unique[n].width == info->width && unique[n].height == info->height) 1037 return 0; 1038 return 1; 1039 } 1040 #endif /* XINERAMA */ 1041 1042 void 1043 keypress(XEvent *e) 1044 { 1045 unsigned int i; 1046 KeySym keysym; 1047 XKeyEvent *ev; 1048 1049 ev = &e->xkey; 1050 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); 1051 for (i = 0; i < LENGTH(keys); i++) 1052 if (keysym == keys[i].keysym 1053 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) 1054 && keys[i].func) 1055 keys[i].func(&(keys[i].arg)); 1056 } 1057 1058 void 1059 killclient(const Arg *arg) 1060 { 1061 if (!selmon->sel) 1062 return; 1063 if (!sendevent(selmon->sel, wmatom[WMDelete])) { 1064 XGrabServer(dpy); 1065 XSetErrorHandler(xerrordummy); 1066 XSetCloseDownMode(dpy, DestroyAll); 1067 XKillClient(dpy, selmon->sel->win); 1068 XSync(dpy, False); 1069 XSetErrorHandler(xerror); 1070 XUngrabServer(dpy); 1071 } 1072 } 1073 1074 void 1075 manage(Window w, XWindowAttributes *wa) 1076 { 1077 Client *c, *t = NULL; 1078 Window trans = None; 1079 XWindowChanges wc; 1080 1081 c = ecalloc(1, sizeof(Client)); 1082 c->win = w; 1083 /* geometry */ 1084 c->x = c->oldx = wa->x; 1085 c->y = c->oldy = wa->y; 1086 c->w = c->oldw = wa->width; 1087 c->h = c->oldh = wa->height; 1088 c->oldbw = wa->border_width; 1089 1090 updatetitle(c); 1091 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { 1092 c->mon = t->mon; 1093 c->tags = t->tags; 1094 } else { 1095 c->mon = selmon; 1096 applyrules(c); 1097 } 1098 1099 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww) 1100 c->x = c->mon->wx + c->mon->ww - WIDTH(c); 1101 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh) 1102 c->y = c->mon->wy + c->mon->wh - HEIGHT(c); 1103 c->x = MAX(c->x, c->mon->wx); 1104 c->y = MAX(c->y, c->mon->wy); 1105 c->bw = borderpx; 1106 1107 wc.border_width = c->bw; 1108 XConfigureWindow(dpy, w, CWBorderWidth, &wc); 1109 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); 1110 configure(c); /* propagates border_width, if size doesn't change */ 1111 updatewindowtype(c); 1112 updatesizehints(c); 1113 updatewmhints(c); 1114 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); 1115 grabbuttons(c, 0); 1116 if (!c->isfloating) 1117 c->isfloating = c->oldstate = trans != None || c->isfixed; 1118 if (c->isfloating) 1119 XRaiseWindow(dpy, c->win); 1120 attach(c); 1121 attachstack(c); 1122 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend, 1123 (unsigned char *) &(c->win), 1); 1124 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */ 1125 setclientstate(c, NormalState); 1126 if (c->mon == selmon) 1127 unfocus(selmon->sel, 0); 1128 c->mon->sel = c; 1129 arrange(c->mon); 1130 XMapWindow(dpy, c->win); 1131 focus(NULL); 1132 } 1133 1134 void 1135 mappingnotify(XEvent *e) 1136 { 1137 XMappingEvent *ev = &e->xmapping; 1138 1139 XRefreshKeyboardMapping(ev); 1140 if (ev->request == MappingKeyboard) 1141 grabkeys(); 1142 } 1143 1144 void 1145 maprequest(XEvent *e) 1146 { 1147 static XWindowAttributes wa; 1148 XMapRequestEvent *ev = &e->xmaprequest; 1149 1150 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect) 1151 return; 1152 if (!wintoclient(ev->window)) 1153 manage(ev->window, &wa); 1154 } 1155 1156 void 1157 monocle(Monitor *m) 1158 { 1159 unsigned int n = 0; 1160 Client *c; 1161 1162 for (c = m->clients; c; c = c->next) 1163 if (ISVISIBLE(c)) 1164 n++; 1165 if (n > 0) /* override layout symbol */ 1166 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n); 1167 for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) 1168 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0); 1169 } 1170 1171 void 1172 motionnotify(XEvent *e) 1173 { 1174 static Monitor *mon = NULL; 1175 Monitor *m; 1176 XMotionEvent *ev = &e->xmotion; 1177 1178 if (ev->window != root) 1179 return; 1180 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) { 1181 unfocus(selmon->sel, 1); 1182 selmon = m; 1183 focus(NULL); 1184 } 1185 mon = m; 1186 } 1187 1188 void 1189 movemouse(const Arg *arg) 1190 { 1191 int x, y, ocx, ocy, nx, ny; 1192 Client *c; 1193 Monitor *m; 1194 XEvent ev; 1195 Time lasttime = 0; 1196 1197 if (!(c = selmon->sel)) 1198 return; 1199 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ 1200 return; 1201 restack(selmon); 1202 ocx = c->x; 1203 ocy = c->y; 1204 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1205 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) 1206 return; 1207 if (!getrootptr(&x, &y)) 1208 return; 1209 do { 1210 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1211 switch(ev.type) { 1212 case ConfigureRequest: 1213 case Expose: 1214 case MapRequest: 1215 handler[ev.type](&ev); 1216 break; 1217 case MotionNotify: 1218 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1219 continue; 1220 lasttime = ev.xmotion.time; 1221 1222 nx = ocx + (ev.xmotion.x - x); 1223 ny = ocy + (ev.xmotion.y - y); 1224 if (abs(selmon->wx - nx) < snap) 1225 nx = selmon->wx; 1226 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) 1227 nx = selmon->wx + selmon->ww - WIDTH(c); 1228 if (abs(selmon->wy - ny) < snap) 1229 ny = selmon->wy; 1230 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) 1231 ny = selmon->wy + selmon->wh - HEIGHT(c); 1232 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1233 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) 1234 togglefloating(NULL); 1235 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1236 resize(c, nx, ny, c->w, c->h, 1); 1237 break; 1238 } 1239 } while (ev.type != ButtonRelease); 1240 XUngrabPointer(dpy, CurrentTime); 1241 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1242 sendmon(c, m); 1243 selmon = m; 1244 focus(NULL); 1245 } 1246 } 1247 1248 Client * 1249 nexttiled(Client *c) 1250 { 1251 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next); 1252 return c; 1253 } 1254 1255 void 1256 pop(Client *c) 1257 { 1258 detach(c); 1259 attach(c); 1260 focus(c); 1261 arrange(c->mon); 1262 } 1263 1264 void 1265 propertynotify(XEvent *e) 1266 { 1267 Client *c; 1268 Window trans; 1269 XPropertyEvent *ev = &e->xproperty; 1270 1271 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1272 updatestatus(); 1273 else if (ev->state == PropertyDelete) 1274 return; /* ignore */ 1275 else if ((c = wintoclient(ev->window))) { 1276 switch(ev->atom) { 1277 default: break; 1278 case XA_WM_TRANSIENT_FOR: 1279 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1280 (c->isfloating = (wintoclient(trans)) != NULL)) 1281 arrange(c->mon); 1282 break; 1283 case XA_WM_NORMAL_HINTS: 1284 c->hintsvalid = 0; 1285 break; 1286 case XA_WM_HINTS: 1287 updatewmhints(c); 1288 drawbars(); 1289 break; 1290 } 1291 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1292 updatetitle(c); 1293 if (c == c->mon->sel) 1294 drawbar(c->mon); 1295 } 1296 if (ev->atom == netatom[NetWMWindowType]) 1297 updatewindowtype(c); 1298 } 1299 } 1300 1301 void 1302 quit(const Arg *arg) 1303 { 1304 running = 0; 1305 } 1306 1307 Monitor * 1308 recttomon(int x, int y, int w, int h) 1309 { 1310 Monitor *m, *r = selmon; 1311 int a, area = 0; 1312 1313 for (m = mons; m; m = m->next) 1314 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1315 area = a; 1316 r = m; 1317 } 1318 return r; 1319 } 1320 1321 void 1322 resize(Client *c, int x, int y, int w, int h, int interact) 1323 { 1324 if (applysizehints(c, &x, &y, &w, &h, interact)) 1325 resizeclient(c, x, y, w, h); 1326 } 1327 1328 void 1329 resizeclient(Client *c, int x, int y, int w, int h) 1330 { 1331 XWindowChanges wc; 1332 1333 c->oldx = c->x; c->x = wc.x = x; 1334 c->oldy = c->y; c->y = wc.y = y; 1335 c->oldw = c->w; c->w = wc.width = w; 1336 c->oldh = c->h; c->h = wc.height = h; 1337 wc.border_width = c->bw; 1338 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1339 configure(c); 1340 XSync(dpy, False); 1341 } 1342 1343 void 1344 resizemouse(const Arg *arg) 1345 { 1346 int ocx, ocy, nw, nh; 1347 Client *c; 1348 Monitor *m; 1349 XEvent ev; 1350 Time lasttime = 0; 1351 1352 if (!(c = selmon->sel)) 1353 return; 1354 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1355 return; 1356 restack(selmon); 1357 ocx = c->x; 1358 ocy = c->y; 1359 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1360 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1361 return; 1362 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1363 do { 1364 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1365 switch(ev.type) { 1366 case ConfigureRequest: 1367 case Expose: 1368 case MapRequest: 1369 handler[ev.type](&ev); 1370 break; 1371 case MotionNotify: 1372 if ((ev.xmotion.time - lasttime) <= (1000 / 60)) 1373 continue; 1374 lasttime = ev.xmotion.time; 1375 1376 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1377 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1378 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1379 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1380 { 1381 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1382 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1383 togglefloating(NULL); 1384 } 1385 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1386 resize(c, c->x, c->y, nw, nh, 1); 1387 break; 1388 } 1389 } while (ev.type != ButtonRelease); 1390 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1391 XUngrabPointer(dpy, CurrentTime); 1392 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1393 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1394 sendmon(c, m); 1395 selmon = m; 1396 focus(NULL); 1397 } 1398 } 1399 1400 void 1401 restack(Monitor *m) 1402 { 1403 Client *c; 1404 XEvent ev; 1405 XWindowChanges wc; 1406 1407 drawbar(m); 1408 if (!m->sel) 1409 return; 1410 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1411 XRaiseWindow(dpy, m->sel->win); 1412 if (m->lt[m->sellt]->arrange) { 1413 wc.stack_mode = Below; 1414 wc.sibling = m->barwin; 1415 for (c = m->stack; c; c = c->snext) 1416 if (!c->isfloating && ISVISIBLE(c)) { 1417 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1418 wc.sibling = c->win; 1419 } 1420 } 1421 XSync(dpy, False); 1422 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1423 } 1424 1425 void 1426 run(void) 1427 { 1428 XEvent ev; 1429 /* main event loop */ 1430 XSync(dpy, False); 1431 while (running && !XNextEvent(dpy, &ev)) 1432 if (handler[ev.type]) 1433 handler[ev.type](&ev); /* call handler */ 1434 } 1435 1436 void 1437 scan(void) 1438 { 1439 unsigned int i, num; 1440 Window d1, d2, *wins = NULL; 1441 XWindowAttributes wa; 1442 1443 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1444 for (i = 0; i < num; i++) { 1445 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1446 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1447 continue; 1448 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1449 manage(wins[i], &wa); 1450 } 1451 for (i = 0; i < num; i++) { /* now the transients */ 1452 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1453 continue; 1454 if (XGetTransientForHint(dpy, wins[i], &d1) 1455 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1456 manage(wins[i], &wa); 1457 } 1458 if (wins) 1459 XFree(wins); 1460 } 1461 } 1462 1463 void 1464 sendmon(Client *c, Monitor *m) 1465 { 1466 if (c->mon == m) 1467 return; 1468 unfocus(c, 1); 1469 detach(c); 1470 detachstack(c); 1471 c->mon = m; 1472 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1473 attach(c); 1474 attachstack(c); 1475 focus(NULL); 1476 arrange(NULL); 1477 } 1478 1479 void 1480 setclientstate(Client *c, long state) 1481 { 1482 long data[] = { state, None }; 1483 1484 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1485 PropModeReplace, (unsigned char *)data, 2); 1486 } 1487 1488 int 1489 sendevent(Client *c, Atom proto) 1490 { 1491 int n; 1492 Atom *protocols; 1493 int exists = 0; 1494 XEvent ev; 1495 1496 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1497 while (!exists && n--) 1498 exists = protocols[n] == proto; 1499 XFree(protocols); 1500 } 1501 if (exists) { 1502 ev.type = ClientMessage; 1503 ev.xclient.window = c->win; 1504 ev.xclient.message_type = wmatom[WMProtocols]; 1505 ev.xclient.format = 32; 1506 ev.xclient.data.l[0] = proto; 1507 ev.xclient.data.l[1] = CurrentTime; 1508 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1509 } 1510 return exists; 1511 } 1512 1513 void 1514 setfocus(Client *c) 1515 { 1516 if (!c->neverfocus) { 1517 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1518 XChangeProperty(dpy, root, netatom[NetActiveWindow], 1519 XA_WINDOW, 32, PropModeReplace, 1520 (unsigned char *) &(c->win), 1); 1521 } 1522 sendevent(c, wmatom[WMTakeFocus]); 1523 } 1524 1525 void 1526 setfullscreen(Client *c, int fullscreen) 1527 { 1528 if (fullscreen && !c->isfullscreen) { 1529 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1530 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1531 c->isfullscreen = 1; 1532 1533 if (fakefullscreen) 1534 return; 1535 1536 c->oldstate = c->isfloating; 1537 c->oldbw = c->bw; 1538 c->bw = 0; 1539 c->isfloating = 1; 1540 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1541 XRaiseWindow(dpy, c->win); 1542 } else if (!fullscreen && c->isfullscreen){ 1543 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1544 PropModeReplace, (unsigned char*)0, 0); 1545 c->isfullscreen = 0; 1546 c->isfloating = c->oldstate; 1547 c->bw = c->oldbw; 1548 c->x = c->oldx; 1549 c->y = c->oldy; 1550 c->w = c->oldw; 1551 c->h = c->oldh; 1552 resizeclient(c, c->x, c->y, c->w, c->h); 1553 arrange(c->mon); 1554 } 1555 } 1556 1557 void 1558 setlayout(const Arg *arg) 1559 { 1560 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1561 selmon->sellt ^= 1; 1562 if (arg && arg->v) 1563 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1564 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol); 1565 if (selmon->sel) 1566 arrange(selmon); 1567 else 1568 drawbar(selmon); 1569 } 1570 1571 void 1572 nextlayout(const Arg *arg) 1573 { 1574 const Layout *l; 1575 Arg a; 1576 1577 for (l = layouts; l != selmon->lt[selmon->sellt]; l++); 1578 1579 if (l->symbol && (l + 1)->symbol) 1580 a.v = (l + 1); 1581 else 1582 a.v = layouts; 1583 1584 setlayout(&a); 1585 } 1586 1587 void 1588 prevlayout(const Arg *arg) 1589 { 1590 const Layout *l; 1591 Arg a; 1592 1593 for (l = layouts; l != selmon->lt[selmon->sellt]; l++); 1594 1595 if (l != layouts && (l - 1)->symbol) 1596 a.v = (l - 1); 1597 else 1598 a.v = &layouts[LENGTH(layouts) - 2]; 1599 1600 setlayout(&a); 1601 } 1602 1603 /* arg > 1.0 will set mfact absolutely */ 1604 void 1605 setmfact(const Arg *arg) 1606 { 1607 float f; 1608 1609 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1610 return; 1611 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1612 if (f < 0.05 || f > 0.95) 1613 return; 1614 selmon->mfact = f; 1615 arrange(selmon); 1616 } 1617 1618 void 1619 setup(void) 1620 { 1621 int i; 1622 XSetWindowAttributes wa; 1623 Atom utf8string; 1624 struct sigaction sa; 1625 1626 /* do not transform children into zombies when they terminate */ 1627 sigemptyset(&sa.sa_mask); 1628 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART; 1629 sa.sa_handler = SIG_IGN; 1630 sigaction(SIGCHLD, &sa, NULL); 1631 1632 /* clean up any zombies (inherited from .xinitrc etc) immediately */ 1633 while (waitpid(-1, NULL, WNOHANG) > 0); 1634 1635 /* init screen */ 1636 screen = DefaultScreen(dpy); 1637 sw = DisplayWidth(dpy, screen); 1638 sh = DisplayHeight(dpy, screen); 1639 root = RootWindow(dpy, screen); 1640 drw = drw_create(dpy, screen, root, sw, sh); 1641 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1642 die("no fonts could be loaded."); 1643 lrpad = drw->fonts->h; 1644 bh = drw->fonts->h + padbar; 1645 updategeom(); 1646 /* init atoms */ 1647 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1648 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1649 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1650 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1651 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1652 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1653 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1654 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1655 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1656 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1657 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1658 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1659 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1660 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1661 /* init cursors */ 1662 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1663 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1664 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1665 /* init appearance */ 1666 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1667 for (i = 0; i < LENGTH(colors); i++) 1668 scheme[i] = drw_scm_create(drw, colors[i], 3); 1669 /* init bars */ 1670 updatebars(); 1671 updatestatus(); 1672 /* supporting window for NetWMCheck */ 1673 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1674 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1675 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1676 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1677 PropModeReplace, (unsigned char *) "dwm", 3); 1678 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1679 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1680 /* EWMH support per view */ 1681 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1682 PropModeReplace, (unsigned char *) netatom, NetLast); 1683 XDeleteProperty(dpy, root, netatom[NetClientList]); 1684 /* select events */ 1685 wa.cursor = cursor[CurNormal]->cursor; 1686 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1687 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1688 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1689 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1690 XSelectInput(dpy, root, wa.event_mask); 1691 grabkeys(); 1692 focus(NULL); 1693 } 1694 1695 void 1696 seturgent(Client *c, int urg) 1697 { 1698 XWMHints *wmh; 1699 1700 c->isurgent = urg; 1701 if (!(wmh = XGetWMHints(dpy, c->win))) 1702 return; 1703 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1704 XSetWMHints(dpy, c->win, wmh); 1705 XFree(wmh); 1706 } 1707 1708 void 1709 showhide(Client *c) 1710 { 1711 if (!c) 1712 return; 1713 if (ISVISIBLE(c)) { 1714 if ((c->tags & SPTAGMASK) && c->isfloating) { 1715 c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2); 1716 c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2); 1717 } 1718 /* show clients top down */ 1719 XMoveWindow(dpy, c->win, c->x, c->y); 1720 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && fakefullscreen && !c->isfullscreen) 1721 resize(c, c->x, c->y, c->w, c->h, 0); 1722 showhide(c->snext); 1723 } else { 1724 /* hide clients bottom up */ 1725 showhide(c->snext); 1726 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1727 } 1728 } 1729 1730 void 1731 spawn(const Arg *arg) 1732 { 1733 struct sigaction sa; 1734 1735 if (arg->v == dmenucmd) 1736 dmenumon[0] = '0' + selmon->num; 1737 if (fork() == 0) { 1738 if (dpy) 1739 close(ConnectionNumber(dpy)); 1740 setsid(); 1741 1742 sigemptyset(&sa.sa_mask); 1743 sa.sa_flags = 0; 1744 sa.sa_handler = SIG_DFL; 1745 sigaction(SIGCHLD, &sa, NULL); 1746 1747 execvp(((char **)arg->v)[0], (char **)arg->v); 1748 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]); 1749 } 1750 } 1751 1752 void 1753 tag(const Arg *arg) 1754 { 1755 if (selmon->sel && arg->ui & TAGMASK) { 1756 selmon->sel->tags = arg->ui & TAGMASK; 1757 focus(NULL); 1758 arrange(selmon); 1759 } 1760 } 1761 1762 void 1763 tagmon(const Arg *arg) 1764 { 1765 if (!selmon->sel || !mons->next) 1766 return; 1767 sendmon(selmon->sel, dirtomon(arg->i)); 1768 } 1769 1770 void 1771 togglebar(const Arg *arg) 1772 { 1773 selmon->showbar = !selmon->showbar; 1774 updatebarpos(selmon); 1775 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1776 arrange(selmon); 1777 } 1778 1779 void 1780 togglefakefull(const Arg *arg) 1781 { 1782 fakefullscreen = !fakefullscreen; 1783 if (selmon->sel && selmon->sel->isfullscreen) 1784 setfullscreen(selmon->sel, 0); 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 togglefullscr(const Arg *arg) 1803 { 1804 if (!fakefullscreen && selmon->sel) 1805 setfullscreen(selmon->sel, !selmon->sel->isfullscreen); 1806 } 1807 1808 void 1809 togglescratch(const Arg *arg) 1810 { 1811 Client *c; 1812 unsigned int found = 0; 1813 unsigned int scratchtag = SPTAG(arg->ui); 1814 Arg sparg = {.v = scratchpads[arg->ui].cmd}; 1815 1816 for (c = selmon->clients; c && !(found = c->tags & scratchtag); c = c->next); 1817 if (found) { 1818 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ scratchtag; 1819 if (newtagset) { 1820 selmon->tagset[selmon->seltags] = newtagset; 1821 focus(NULL); 1822 arrange(selmon); 1823 } 1824 if (ISVISIBLE(c)) { 1825 focus(c); 1826 restack(selmon); 1827 } 1828 } else { 1829 selmon->tagset[selmon->seltags] |= scratchtag; 1830 spawn(&sparg); 1831 } 1832 } 1833 1834 void 1835 toggletag(const Arg *arg) 1836 { 1837 unsigned int newtags; 1838 1839 if (!selmon->sel) 1840 return; 1841 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1842 if (newtags) { 1843 selmon->sel->tags = newtags; 1844 focus(NULL); 1845 arrange(selmon); 1846 } 1847 } 1848 1849 void 1850 toggleview(const Arg *arg) 1851 { 1852 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1853 1854 if (newtagset) { 1855 selmon->tagset[selmon->seltags] = newtagset; 1856 focus(NULL); 1857 arrange(selmon); 1858 } 1859 } 1860 1861 void 1862 unfocus(Client *c, int setfocus) 1863 { 1864 if (!c) 1865 return; 1866 grabbuttons(c, 0); 1867 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1868 if (setfocus) { 1869 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1870 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1871 } 1872 } 1873 1874 void 1875 unmanage(Client *c, int destroyed) 1876 { 1877 Monitor *m = c->mon; 1878 XWindowChanges wc; 1879 1880 detach(c); 1881 detachstack(c); 1882 if (!destroyed) { 1883 wc.border_width = c->oldbw; 1884 XGrabServer(dpy); /* avoid race conditions */ 1885 XSetErrorHandler(xerrordummy); 1886 XSelectInput(dpy, c->win, NoEventMask); 1887 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1888 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1889 setclientstate(c, WithdrawnState); 1890 XSync(dpy, False); 1891 XSetErrorHandler(xerror); 1892 XUngrabServer(dpy); 1893 } 1894 free(c); 1895 focus(NULL); 1896 updateclientlist(); 1897 arrange(m); 1898 } 1899 1900 void 1901 unmapnotify(XEvent *e) 1902 { 1903 Client *c; 1904 XUnmapEvent *ev = &e->xunmap; 1905 1906 if ((c = wintoclient(ev->window))) { 1907 if (ev->send_event) 1908 setclientstate(c, WithdrawnState); 1909 else 1910 unmanage(c, 0); 1911 } 1912 } 1913 1914 void 1915 updatebars(void) 1916 { 1917 Monitor *m; 1918 XSetWindowAttributes wa = { 1919 .override_redirect = True, 1920 .background_pixmap = ParentRelative, 1921 .event_mask = ButtonPressMask|ExposureMask 1922 }; 1923 XClassHint ch = {"dwm", "dwm"}; 1924 for (m = mons; m; m = m->next) { 1925 if (m->barwin) 1926 continue; 1927 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1928 CopyFromParent, DefaultVisual(dpy, screen), 1929 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1930 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1931 XMapRaised(dpy, m->barwin); 1932 XSetClassHint(dpy, m->barwin, &ch); 1933 } 1934 } 1935 1936 void 1937 updatebarpos(Monitor *m) 1938 { 1939 m->wy = m->my; 1940 m->wh = m->mh; 1941 if (m->showbar) { 1942 m->wh -= bh; 1943 m->by = m->topbar ? m->wy : m->wy + m->wh; 1944 m->wy = m->topbar ? m->wy + bh : m->wy; 1945 } else 1946 m->by = -bh; 1947 } 1948 1949 void 1950 updateclientlist(void) 1951 { 1952 Client *c; 1953 Monitor *m; 1954 1955 XDeleteProperty(dpy, root, netatom[NetClientList]); 1956 for (m = mons; m; m = m->next) 1957 for (c = m->clients; c; c = c->next) 1958 XChangeProperty(dpy, root, netatom[NetClientList], 1959 XA_WINDOW, 32, PropModeAppend, 1960 (unsigned char *) &(c->win), 1); 1961 } 1962 1963 int 1964 updategeom(void) 1965 { 1966 int dirty = 0; 1967 1968 #ifdef XINERAMA 1969 if (XineramaIsActive(dpy)) { 1970 int i, j, n, nn; 1971 Client *c; 1972 Monitor *m; 1973 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1974 XineramaScreenInfo *unique = NULL; 1975 1976 for (n = 0, m = mons; m; m = m->next, n++); 1977 /* only consider unique geometries as separate screens */ 1978 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1979 for (i = 0, j = 0; i < nn; i++) 1980 if (isuniquegeom(unique, j, &info[i])) 1981 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1982 XFree(info); 1983 nn = j; 1984 1985 /* new monitors if nn > n */ 1986 for (i = n; i < nn; i++) { 1987 for (m = mons; m && m->next; m = m->next); 1988 if (m) 1989 m->next = createmon(); 1990 else 1991 mons = createmon(); 1992 } 1993 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 1994 if (i >= n 1995 || unique[i].x_org != m->mx || unique[i].y_org != m->my 1996 || unique[i].width != m->mw || unique[i].height != m->mh) 1997 { 1998 dirty = 1; 1999 m->num = i; 2000 m->mx = m->wx = unique[i].x_org; 2001 m->my = m->wy = unique[i].y_org; 2002 m->mw = m->ww = unique[i].width; 2003 m->mh = m->wh = unique[i].height; 2004 updatebarpos(m); 2005 } 2006 /* removed monitors if n > nn */ 2007 for (i = nn; i < n; i++) { 2008 for (m = mons; m && m->next; m = m->next); 2009 while ((c = m->clients)) { 2010 dirty = 1; 2011 m->clients = c->next; 2012 detachstack(c); 2013 c->mon = mons; 2014 attach(c); 2015 attachstack(c); 2016 } 2017 if (m == selmon) 2018 selmon = mons; 2019 cleanupmon(m); 2020 } 2021 free(unique); 2022 } else 2023 #endif /* XINERAMA */ 2024 { /* default monitor setup */ 2025 if (!mons) 2026 mons = createmon(); 2027 if (mons->mw != sw || mons->mh != sh) { 2028 dirty = 1; 2029 mons->mw = mons->ww = sw; 2030 mons->mh = mons->wh = sh; 2031 updatebarpos(mons); 2032 } 2033 } 2034 if (dirty) { 2035 selmon = mons; 2036 selmon = wintomon(root); 2037 } 2038 return dirty; 2039 } 2040 2041 void 2042 updatenumlockmask(void) 2043 { 2044 unsigned int i, j; 2045 XModifierKeymap *modmap; 2046 2047 numlockmask = 0; 2048 modmap = XGetModifierMapping(dpy); 2049 for (i = 0; i < 8; i++) 2050 for (j = 0; j < modmap->max_keypermod; j++) 2051 if (modmap->modifiermap[i * modmap->max_keypermod + j] 2052 == XKeysymToKeycode(dpy, XK_Num_Lock)) 2053 numlockmask = (1 << i); 2054 XFreeModifiermap(modmap); 2055 } 2056 2057 void 2058 updatesizehints(Client *c) 2059 { 2060 long msize; 2061 XSizeHints size; 2062 2063 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 2064 /* size is uninitialized, ensure that size.flags aren't used */ 2065 size.flags = PSize; 2066 if (size.flags & PBaseSize) { 2067 c->basew = size.base_width; 2068 c->baseh = size.base_height; 2069 } else if (size.flags & PMinSize) { 2070 c->basew = size.min_width; 2071 c->baseh = size.min_height; 2072 } else 2073 c->basew = c->baseh = 0; 2074 if (size.flags & PResizeInc) { 2075 c->incw = size.width_inc; 2076 c->inch = size.height_inc; 2077 } else 2078 c->incw = c->inch = 0; 2079 if (size.flags & PMaxSize) { 2080 c->maxw = size.max_width; 2081 c->maxh = size.max_height; 2082 } else 2083 c->maxw = c->maxh = 0; 2084 if (size.flags & PMinSize) { 2085 c->minw = size.min_width; 2086 c->minh = size.min_height; 2087 } else if (size.flags & PBaseSize) { 2088 c->minw = size.base_width; 2089 c->minh = size.base_height; 2090 } else 2091 c->minw = c->minh = 0; 2092 if (size.flags & PAspect) { 2093 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 2094 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 2095 } else 2096 c->maxa = c->mina = 0.0; 2097 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 2098 c->hintsvalid = 1; 2099 } 2100 2101 void 2102 updatestatus(void) 2103 { 2104 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 2105 strcpy(stext, "dwm-"VERSION); 2106 drawbar(selmon); 2107 } 2108 2109 void 2110 updatetitle(Client *c) 2111 { 2112 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 2113 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 2114 if (c->name[0] == '\0') /* hack to mark broken clients */ 2115 strcpy(c->name, broken); 2116 } 2117 2118 void 2119 updatewindowtype(Client *c) 2120 { 2121 Atom state = getatomprop(c, netatom[NetWMState]); 2122 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2123 2124 if (state == netatom[NetWMFullscreen]) 2125 setfullscreen(c, 1); 2126 if (wtype == netatom[NetWMWindowTypeDialog]) 2127 c->isfloating = 1; 2128 } 2129 2130 void 2131 updatewmhints(Client *c) 2132 { 2133 XWMHints *wmh; 2134 2135 if ((wmh = XGetWMHints(dpy, c->win))) { 2136 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2137 wmh->flags &= ~XUrgencyHint; 2138 XSetWMHints(dpy, c->win, wmh); 2139 } else 2140 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2141 if (wmh->flags & InputHint) 2142 c->neverfocus = !wmh->input; 2143 else 2144 c->neverfocus = 0; 2145 XFree(wmh); 2146 } 2147 } 2148 2149 void 2150 view(const Arg *arg) 2151 { 2152 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2153 return; 2154 selmon->seltags ^= 1; /* toggle sel tagset */ 2155 if (arg->ui & TAGMASK) 2156 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2157 focus(NULL); 2158 arrange(selmon); 2159 } 2160 2161 Client * 2162 wintoclient(Window w) 2163 { 2164 Client *c; 2165 Monitor *m; 2166 2167 for (m = mons; m; m = m->next) 2168 for (c = m->clients; c; c = c->next) 2169 if (c->win == w) 2170 return c; 2171 return NULL; 2172 } 2173 2174 Monitor * 2175 wintomon(Window w) 2176 { 2177 int x, y; 2178 Client *c; 2179 Monitor *m; 2180 2181 if (w == root && getrootptr(&x, &y)) 2182 return recttomon(x, y, 1, 1); 2183 for (m = mons; m; m = m->next) 2184 if (w == m->barwin) 2185 return m; 2186 if ((c = wintoclient(w))) 2187 return c->mon; 2188 return selmon; 2189 } 2190 2191 /* There's no way to check accesses to destroyed windows, thus those cases are 2192 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2193 * default error handler, which may call exit. */ 2194 int 2195 xerror(Display *dpy, XErrorEvent *ee) 2196 { 2197 if (ee->error_code == BadWindow 2198 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2199 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2200 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2201 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2202 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2203 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2204 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2205 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2206 return 0; 2207 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2208 ee->request_code, ee->error_code); 2209 return xerrorxlib(dpy, ee); /* may call exit */ 2210 } 2211 2212 int 2213 xerrordummy(Display *dpy, XErrorEvent *ee) 2214 { 2215 return 0; 2216 } 2217 2218 /* Startup Error handler to check if another window manager 2219 * is already running. */ 2220 int 2221 xerrorstart(Display *dpy, XErrorEvent *ee) 2222 { 2223 die("dwm: another window manager is already running"); 2224 return -1; 2225 } 2226 2227 void 2228 zoom(const Arg *arg) 2229 { 2230 Client *c = selmon->sel; 2231 2232 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating) 2233 return; 2234 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next))) 2235 return; 2236 pop(c); 2237 } 2238 2239 int 2240 main(int argc, char *argv[]) 2241 { 2242 if (argc == 2 && !strcmp("-v", argv[1])) 2243 die("dwm-"VERSION); 2244 else if (argc != 1) 2245 die("usage: dwm [-v]"); 2246 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2247 fputs("warning: no locale support\n", stderr); 2248 if (!(dpy = XOpenDisplay(NULL))) 2249 die("dwm: cannot open display"); 2250 checkotherwm(); 2251 setup(); 2252 #ifdef __OpenBSD__ 2253 if (pledge("stdio rpath proc exec", NULL) == -1) 2254 die("pledge"); 2255 #endif /* __OpenBSD__ */ 2256 scan(); 2257 run(); 2258 cleanup(); 2259 XCloseDisplay(dpy); 2260 return EXIT_SUCCESS; 2261 }