dwm.c (58836B)
1 /* See LICENSE file for copyright and license details. 2 * 3 * dynamic window manager is designed like any other X client as well. It is 4 * driven through handling X events. In contrast to other X clients, a window 5 * manager selects for SubstructureRedirectMask on the root window, to receive 6 * events about window (dis-)appearance. Only one X connection at a time is 7 * allowed to select for this event mask. 8 * 9 * The event handlers of dwm are organized in an array which is accessed 10 * whenever a new event has been fetched. This allows event dispatching 11 * in O(1) time. 12 * 13 * Each child of the root window is called a client, except windows which have 14 * set the override_redirect flag. Clients are organized in a linked client 15 * list on each monitor, the focus history is remembered through a stack list 16 * on each monitor. Each client contains a bit array to indicate the tags of a 17 * client. 18 * 19 * Keys and tagging rules are organized as arrays and defined in config.h. 20 * 21 * To understand everything else, start reading main(). 22 */ 23 #include <errno.h> 24 #include <locale.h> 25 #include <signal.h> 26 #include <stdarg.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 #include <sys/types.h> 32 #include <sys/wait.h> 33 #include <X11/cursorfont.h> 34 #include <X11/keysym.h> 35 #include <X11/Xatom.h> 36 #include <X11/Xlib.h> 37 #include <X11/Xproto.h> 38 #include <X11/Xutil.h> 39 #ifdef XINERAMA 40 #include <X11/extensions/Xinerama.h> 41 #endif /* XINERAMA */ 42 #include <X11/Xft/Xft.h> 43 44 #include "drw.h" 45 #include "util.h" 46 47 /* macros */ 48 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask) 49 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask)) 50 #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \ 51 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy))) 52 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags])) 53 #define MOUSEMASK (BUTTONMASK|PointerMotionMask) 54 #define WIDTH(X) ((X)->w + 2 * (X)->bw) 55 #define HEIGHT(X) ((X)->h + 2 * (X)->bw) 56 #define TAGMASK ((1 << LENGTH(tags)) - 1) 57 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 58 59 /* enums */ 60 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ 61 enum { SchemeNorm, SchemeSel, SchemeTitle }; /* color schemes */ 62 enum { NetSupported, NetWMName, NetWMState, NetWMCheck, 63 NetWMFullscreen, NetActiveWindow, NetWMWindowType, 64 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ 65 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */ 66 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, 67 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */ 68 69 typedef union { 70 int i; 71 unsigned int ui; 72 float f; 73 const void *v; 74 } Arg; 75 76 typedef struct { 77 unsigned int click; 78 unsigned int mask; 79 unsigned int button; 80 void (*func)(const Arg *arg); 81 const Arg arg; 82 } Button; 83 84 typedef struct Monitor Monitor; 85 typedef struct Client Client; 86 struct Client { 87 char name[256]; 88 float mina, maxa; 89 int x, y, w, h; 90 int oldx, oldy, oldw, oldh; 91 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid; 92 int bw, oldbw; 93 unsigned int tags; 94 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen; 95 Client *next; 96 Client *snext; 97 Monitor *mon; 98 Window win; 99 }; 100 101 typedef struct { 102 unsigned int mod; 103 KeySym keysym; 104 void (*func)(const Arg *); 105 const Arg arg; 106 } Key; 107 108 typedef struct { 109 const char *symbol; 110 void (*arrange)(Monitor *); 111 } Layout; 112 113 typedef struct Pertag Pertag; 114 115 struct Monitor { 116 char ltsymbol[16]; 117 float mfact; 118 int nmaster; 119 int num; 120 int by; /* bar geometry */ 121 int mx, my, mw, mh; /* screen size */ 122 int wx, wy, ww, wh; /* window area */ 123 unsigned int seltags; 124 unsigned int sellt; 125 unsigned int tagset[2]; 126 int showbar; 127 int topbar; 128 Client *clients; 129 Client *sel; 130 Client *stack; 131 Monitor *next; 132 Window barwin; 133 const Layout *lt[2]; 134 Pertag *pertag; 135 }; 136 137 typedef struct { 138 const char *class; 139 const char *instance; 140 const char *title; 141 unsigned int tags; 142 int isfloating; 143 int monitor; 144 } Rule; 145 146 /* function declarations */ 147 static void applyrules(Client *c); 148 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact); 149 static void arrange(Monitor *m); 150 static void arrangemon(Monitor *m); 151 static void attach(Client *c); 152 static void attachstack(Client *c); 153 static void buttonpress(XEvent *e); 154 static void checkotherwm(void); 155 static void cleanup(void); 156 static void cleanupmon(Monitor *mon); 157 static void clientmessage(XEvent *e); 158 static void configure(Client *c); 159 static void configurenotify(XEvent *e); 160 static void configurerequest(XEvent *e); 161 static Monitor *createmon(void); 162 static void destroynotify(XEvent *e); 163 static void detach(Client *c); 164 static void detachstack(Client *c); 165 static Monitor *dirtomon(int dir); 166 static void drawbar(Monitor *m); 167 static void drawbars(void); 168 static void enternotify(XEvent *e); 169 static void expose(XEvent *e); 170 static void focus(Client *c); 171 static void focusin(XEvent *e); 172 static void focusmon(const Arg *arg); 173 static void focusstack(const Arg *arg); 174 static Atom getatomprop(Client *c, Atom prop); 175 static int getrootptr(int *x, int *y); 176 static long getstate(Window w); 177 static int gettextprop(Window w, Atom atom, char *text, unsigned int size); 178 static void grabbuttons(Client *c, int focused); 179 static void grabkeys(void); 180 static void incnmaster(const Arg *arg); 181 static void keypress(XEvent *e); 182 static void killclient(const Arg *arg); 183 static void manage(Window w, XWindowAttributes *wa); 184 static void mappingnotify(XEvent *e); 185 static void maprequest(XEvent *e); 186 static void monocle(Monitor *m); 187 static void motionnotify(XEvent *e); 188 static void movemouse(const Arg *arg); 189 static Client *nexttiled(Client *c); 190 static void pop(Client *c); 191 static void propertynotify(XEvent *e); 192 static void quit(const Arg *arg); 193 static Monitor *recttomon(int x, int y, int w, int h); 194 static void resize(Client *c, int x, int y, int w, int h, int interact); 195 static void resizeclient(Client *c, int x, int y, int w, int h); 196 static void resizemouse(const Arg *arg); 197 static void restack(Monitor *m); 198 static void run(void); 199 static void scan(void); 200 static int sendevent(Client *c, Atom proto); 201 static void sendmon(Client *c, Monitor *m); 202 static void setclientstate(Client *c, long state); 203 static void setfocus(Client *c); 204 static void setfullscreen(Client *c, int fullscreen); 205 static void setlayout(const Arg *arg); 206 static void setmfact(const Arg *arg); 207 static void setup(void); 208 static void seturgent(Client *c, int urg); 209 static void showhide(Client *c); 210 static void spawn(const Arg *arg); 211 static void tag(const Arg *arg); 212 static void tagmon(const Arg *arg); 213 static void tile(Monitor *m); 214 static void togglebar(const Arg *arg); 215 static void togglefloating(const Arg *arg); 216 static void togglefullscr(const Arg *arg); 217 static void toggletag(const Arg *arg); 218 static void toggleview(const Arg *arg); 219 static void unfocus(Client *c, int setfocus); 220 static void unmanage(Client *c, int destroyed); 221 static void unmapnotify(XEvent *e); 222 static void updatebarpos(Monitor *m); 223 static void updatebars(void); 224 static void updateclientlist(void); 225 static int updategeom(void); 226 static void updatenumlockmask(void); 227 static void updatesizehints(Client *c); 228 static void updatestatus(void); 229 static void updatetitle(Client *c); 230 static void updatewindowtype(Client *c); 231 static void updatewmhints(Client *c); 232 static void movestack(const Arg *arg); 233 static void view(const Arg *arg); 234 static Client *wintoclient(Window w); 235 static Monitor *wintomon(Window w); 236 static int xerror(Display *dpy, XErrorEvent *ee); 237 static int xerrordummy(Display *dpy, XErrorEvent *ee); 238 static int xerrorstart(Display *dpy, XErrorEvent *ee); 239 static void zoom(const Arg *arg); 240 241 /* variables */ 242 static const char broken[] = "broken"; 243 static char stext[256]; 244 static int screen; 245 static int sw, sh; /* X display screen geometry width, height */ 246 static int bh; /* bar height */ 247 static int lrpad; /* sum of left and right padding for text */ 248 static int (*xerrorxlib)(Display *, XErrorEvent *); 249 static unsigned int numlockmask = 0; 250 static void (*handler[LASTEvent]) (XEvent *) = { 251 [ButtonPress] = buttonpress, 252 [ClientMessage] = clientmessage, 253 [ConfigureRequest] = configurerequest, 254 [ConfigureNotify] = configurenotify, 255 [DestroyNotify] = destroynotify, 256 [EnterNotify] = enternotify, 257 [Expose] = expose, 258 [FocusIn] = focusin, 259 [KeyPress] = keypress, 260 [MappingNotify] = mappingnotify, 261 [MapRequest] = maprequest, 262 [MotionNotify] = motionnotify, 263 [PropertyNotify] = propertynotify, 264 [UnmapNotify] = unmapnotify 265 }; 266 static Atom wmatom[WMLast], netatom[NetLast]; 267 static int running = 1; 268 static Cur *cursor[CurLast]; 269 static Clr **scheme; 270 static Display *dpy; 271 static Drw *drw; 272 static Monitor *mons, *selmon; 273 static Window root, wmcheckwin; 274 275 /* configuration, allows nested code to access above variables */ 276 #include "config.h" 277 278 struct Pertag { 279 unsigned int curtag, prevtag; /* current and previous tag */ 280 int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */ 281 float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */ 282 unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */ 283 const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes */ 284 int showbars[LENGTH(tags) + 1]; /* display bar for the current tag */ 285 }; 286 287 /* compile-time check if all tags fit into an unsigned int bit array. */ 288 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; 289 290 /* function implementations */ 291 void 292 applyrules(Client *c) 293 { 294 const char *class, *instance; 295 unsigned int i; 296 const Rule *r; 297 Monitor *m; 298 XClassHint ch = { NULL, NULL }; 299 300 /* rule matching */ 301 c->isfloating = 0; 302 c->tags = 0; 303 XGetClassHint(dpy, c->win, &ch); 304 class = ch.res_class ? ch.res_class : broken; 305 instance = ch.res_name ? ch.res_name : broken; 306 307 for (i = 0; i < LENGTH(rules); i++) { 308 r = &rules[i]; 309 if ((!r->title || strstr(c->name, r->title)) 310 && (!r->class || strstr(class, r->class)) 311 && (!r->instance || strstr(instance, r->instance))) 312 { 313 c->isfloating = r->isfloating; 314 c->tags |= r->tags; 315 for (m = mons; m && m->num != r->monitor; m = m->next); 316 if (m) 317 c->mon = m; 318 } 319 } 320 if (ch.res_class) 321 XFree(ch.res_class); 322 if (ch.res_name) 323 XFree(ch.res_name); 324 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags]; 325 } 326 327 int 328 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) 329 { 330 int baseismin; 331 Monitor *m = c->mon; 332 333 /* set minimum possible */ 334 *w = MAX(1, *w); 335 *h = MAX(1, *h); 336 if (interact) { 337 if (*x > sw) 338 *x = sw - WIDTH(c); 339 if (*y > sh) 340 *y = sh - HEIGHT(c); 341 if (*x + *w + 2 * c->bw < 0) 342 *x = 0; 343 if (*y + *h + 2 * c->bw < 0) 344 *y = 0; 345 } else { 346 if (*x >= m->wx + m->ww) 347 *x = m->wx + m->ww - WIDTH(c); 348 if (*y >= m->wy + m->wh) 349 *y = m->wy + m->wh - HEIGHT(c); 350 if (*x + *w + 2 * c->bw <= m->wx) 351 *x = m->wx; 352 if (*y + *h + 2 * c->bw <= m->wy) 353 *y = m->wy; 354 } 355 if (*h < bh) 356 *h = bh; 357 if (*w < bh) 358 *w = bh; 359 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { 360 if (!c->hintsvalid) 361 updatesizehints(c); 362 /* see last two sentences in ICCCM 4.1.2.3 */ 363 baseismin = c->basew == c->minw && c->baseh == c->minh; 364 if (!baseismin) { /* temporarily remove base dimensions */ 365 *w -= c->basew; 366 *h -= c->baseh; 367 } 368 /* adjust for aspect limits */ 369 if (c->mina > 0 && c->maxa > 0) { 370 if (c->maxa < (float)*w / *h) 371 *w = *h * c->maxa + 0.5; 372 else if (c->mina < (float)*h / *w) 373 *h = *w * c->mina + 0.5; 374 } 375 if (baseismin) { /* increment calculation requires this */ 376 *w -= c->basew; 377 *h -= c->baseh; 378 } 379 /* adjust for increment value */ 380 if (c->incw) 381 *w -= *w % c->incw; 382 if (c->inch) 383 *h -= *h % c->inch; 384 /* restore base dimensions */ 385 *w = MAX(*w + c->basew, c->minw); 386 *h = MAX(*h + c->baseh, c->minh); 387 if (c->maxw) 388 *w = MIN(*w, c->maxw); 389 if (c->maxh) 390 *h = MIN(*h, c->maxh); 391 } 392 return *x != c->x || *y != c->y || *w != c->w || *h != c->h; 393 } 394 395 void 396 arrange(Monitor *m) 397 { 398 if (m) 399 showhide(m->stack); 400 else for (m = mons; m; m = m->next) 401 showhide(m->stack); 402 if (m) { 403 arrangemon(m); 404 restack(m); 405 } else for (m = mons; m; m = m->next) 406 arrangemon(m); 407 } 408 409 void 410 arrangemon(Monitor *m) 411 { 412 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol); 413 if (m->lt[m->sellt]->arrange) 414 m->lt[m->sellt]->arrange(m); 415 } 416 417 void 418 attach(Client *c) 419 { 420 c->next = c->mon->clients; 421 c->mon->clients = c; 422 } 423 424 void 425 attachstack(Client *c) 426 { 427 c->snext = c->mon->stack; 428 c->mon->stack = c; 429 } 430 431 void 432 buttonpress(XEvent *e) 433 { 434 unsigned int i, x, click; 435 Arg arg = {0}; 436 Client *c; 437 Monitor *m; 438 XButtonPressedEvent *ev = &e->xbutton; 439 440 click = ClkRootWin; 441 /* focus monitor if necessary */ 442 if ((m = wintomon(ev->window)) && m != selmon) { 443 unfocus(selmon->sel, 1); 444 selmon = m; 445 focus(NULL); 446 } 447 if (ev->window == selmon->barwin) { 448 i = x = 0; 449 do 450 x += TEXTW(tags[i]); 451 while (ev->x >= x && ++i < LENGTH(tags)); 452 if (i < LENGTH(tags)) { 453 click = ClkTagBar; 454 arg.ui = 1 << i; 455 } else if (ev->x < x + TEXTW(selmon->ltsymbol)) 456 click = ClkLtSymbol; 457 else if (ev->x > selmon->ww - (int)TEXTW(stext) + lrpad - 2) 458 click = ClkStatusText; 459 else 460 click = ClkWinTitle; 461 } else if ((c = wintoclient(ev->window))) { 462 focus(c); 463 restack(selmon); 464 XAllowEvents(dpy, ReplayPointer, CurrentTime); 465 click = ClkClientWin; 466 } 467 for (i = 0; i < LENGTH(buttons); i++) 468 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button 469 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) 470 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); 471 } 472 473 void 474 checkotherwm(void) 475 { 476 xerrorxlib = XSetErrorHandler(xerrorstart); 477 /* this causes an error if some other window manager is running */ 478 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); 479 XSync(dpy, False); 480 XSetErrorHandler(xerror); 481 XSync(dpy, False); 482 } 483 484 void 485 cleanup(void) 486 { 487 Arg a = {.ui = ~0}; 488 Layout foo = { "", NULL }; 489 Monitor *m; 490 size_t i; 491 492 view(&a); 493 selmon->lt[selmon->sellt] = &foo; 494 for (m = mons; m; m = m->next) 495 while (m->stack) 496 unmanage(m->stack, 0); 497 XUngrabKey(dpy, AnyKey, AnyModifier, root); 498 while (mons) 499 cleanupmon(mons); 500 for (i = 0; i < CurLast; i++) 501 drw_cur_free(drw, cursor[i]); 502 for (i = 0; i < LENGTH(colors); i++) 503 drw_scm_free(drw, scheme[i], 3); 504 free(scheme); 505 XDestroyWindow(dpy, wmcheckwin); 506 drw_free(drw); 507 XSync(dpy, False); 508 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); 509 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 510 } 511 512 void 513 cleanupmon(Monitor *mon) 514 { 515 Monitor *m; 516 517 if (mon == mons) 518 mons = mons->next; 519 else { 520 for (m = mons; m && m->next != mon; m = m->next); 521 m->next = mon->next; 522 } 523 XUnmapWindow(dpy, mon->barwin); 524 XDestroyWindow(dpy, mon->barwin); 525 free(mon); 526 } 527 528 void 529 clientmessage(XEvent *e) 530 { 531 XClientMessageEvent *cme = &e->xclient; 532 Client *c = wintoclient(cme->window); 533 534 if (!c) 535 return; 536 if (cme->message_type == netatom[NetWMState]) { 537 if (cme->data.l[1] == netatom[NetWMFullscreen] 538 || cme->data.l[2] == netatom[NetWMFullscreen]) 539 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */ 540 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen))); 541 } else if (cme->message_type == netatom[NetActiveWindow]) { 542 if (c != selmon->sel && !c->isurgent) 543 seturgent(c, 1); 544 } 545 } 546 547 void 548 configure(Client *c) 549 { 550 XConfigureEvent ce; 551 552 ce.type = ConfigureNotify; 553 ce.display = dpy; 554 ce.event = c->win; 555 ce.window = c->win; 556 ce.x = c->x; 557 ce.y = c->y; 558 ce.width = c->w; 559 ce.height = c->h; 560 ce.border_width = c->bw; 561 ce.above = None; 562 ce.override_redirect = False; 563 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); 564 } 565 566 void 567 configurenotify(XEvent *e) 568 { 569 Monitor *m; 570 Client *c; 571 XConfigureEvent *ev = &e->xconfigure; 572 int dirty; 573 574 /* TODO: updategeom handling sucks, needs to be simplified */ 575 if (ev->window == root) { 576 dirty = (sw != ev->width || sh != ev->height); 577 sw = ev->width; 578 sh = ev->height; 579 if (updategeom() || dirty) { 580 drw_resize(drw, sw, bh); 581 updatebars(); 582 for (m = mons; m; m = m->next) { 583 for (c = m->clients; c; c = c->next) 584 if (c->isfullscreen) 585 resizeclient(c, m->mx, m->my, m->mw, m->mh); 586 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); 587 } 588 focus(NULL); 589 arrange(NULL); 590 } 591 } 592 } 593 594 void 595 configurerequest(XEvent *e) 596 { 597 Client *c; 598 Monitor *m; 599 XConfigureRequestEvent *ev = &e->xconfigurerequest; 600 XWindowChanges wc; 601 602 if ((c = wintoclient(ev->window))) { 603 if (ev->value_mask & CWBorderWidth) 604 c->bw = ev->border_width; 605 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) { 606 m = c->mon; 607 if (ev->value_mask & CWX) { 608 c->oldx = c->x; 609 c->x = m->mx + ev->x; 610 } 611 if (ev->value_mask & CWY) { 612 c->oldy = c->y; 613 c->y = m->my + ev->y; 614 } 615 if (ev->value_mask & CWWidth) { 616 c->oldw = c->w; 617 c->w = ev->width; 618 } 619 if (ev->value_mask & CWHeight) { 620 c->oldh = c->h; 621 c->h = ev->height; 622 } 623 if ((c->x + c->w) > m->mx + m->mw && c->isfloating) 624 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */ 625 if ((c->y + c->h) > m->my + m->mh && c->isfloating) 626 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */ 627 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight))) 628 configure(c); 629 if (ISVISIBLE(c)) 630 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); 631 } else 632 configure(c); 633 } else { 634 wc.x = ev->x; 635 wc.y = ev->y; 636 wc.width = ev->width; 637 wc.height = ev->height; 638 wc.border_width = ev->border_width; 639 wc.sibling = ev->above; 640 wc.stack_mode = ev->detail; 641 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); 642 } 643 XSync(dpy, False); 644 } 645 646 Monitor * 647 createmon(void) 648 { 649 Monitor *m; 650 unsigned int i; 651 652 m = ecalloc(1, sizeof(Monitor)); 653 m->tagset[0] = m->tagset[1] = 1; 654 m->mfact = mfact; 655 m->nmaster = nmaster; 656 m->showbar = showbar; 657 m->topbar = topbar; 658 m->lt[0] = &layouts[0]; 659 m->lt[1] = &layouts[1 % LENGTH(layouts)]; 660 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); 661 m->pertag = ecalloc(1, sizeof(Pertag)); 662 m->pertag->curtag = m->pertag->prevtag = 1; 663 664 for (i = 0; i <= LENGTH(tags); i++) { 665 m->pertag->nmasters[i] = m->nmaster; 666 m->pertag->mfacts[i] = m->mfact; 667 668 m->pertag->ltidxs[i][0] = m->lt[0]; 669 m->pertag->ltidxs[i][1] = m->lt[1]; 670 m->pertag->sellts[i] = m->sellt; 671 672 m->pertag->showbars[i] = m->showbar; 673 } 674 return m; 675 } 676 677 void 678 destroynotify(XEvent *e) 679 { 680 Client *c; 681 XDestroyWindowEvent *ev = &e->xdestroywindow; 682 683 if ((c = wintoclient(ev->window))) 684 unmanage(c, 1); 685 } 686 687 void 688 detach(Client *c) 689 { 690 Client **tc; 691 692 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next); 693 *tc = c->next; 694 } 695 696 void 697 detachstack(Client *c) 698 { 699 Client **tc, *t; 700 701 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext); 702 *tc = c->snext; 703 704 if (c == c->mon->sel) { 705 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext); 706 c->mon->sel = t; 707 } 708 } 709 710 Monitor * 711 dirtomon(int dir) 712 { 713 Monitor *m = NULL; 714 715 if (dir > 0) { 716 if (!(m = selmon->next)) 717 m = mons; 718 } else if (selmon == mons) 719 for (m = mons; m->next; m = m->next); 720 else 721 for (m = mons; m->next != selmon; m = m->next); 722 return m; 723 } 724 725 void 726 drawbar(Monitor *m) 727 { 728 int x, w, tw = 0; 729 int boxs = drw->fonts->h / 9; 730 int boxw = drw->fonts->h / 6 + 2; 731 unsigned int i, occ = 0, urg = 0; 732 Client *c; 733 734 if (!m->showbar) 735 return; 736 737 /* draw status first so it can be overdrawn by tags later */ 738 if (m == selmon) { /* status is only drawn on selected monitor */ 739 drw_setscheme(drw, scheme[SchemeNorm]); 740 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ 741 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0); 742 } 743 744 for (c = m->clients; c; c = c->next) { 745 occ |= c->tags; 746 if (c->isurgent) 747 urg |= c->tags; 748 } 749 x = 0; 750 for (i = 0; i < LENGTH(tags); i++) { 751 w = TEXTW(tags[i]); 752 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); 753 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); 754 if (occ & 1 << i) 755 drw_rect(drw, x + boxs, boxs, boxw, boxw, 756 m == selmon && selmon->sel && selmon->sel->tags & 1 << i, 757 urg & 1 << i); 758 x += w; 759 } 760 w = TEXTW(m->ltsymbol); 761 drw_setscheme(drw, scheme[SchemeNorm]); 762 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); 763 764 if ((w = m->ww - tw - x) > bh) { 765 if (m->sel) { 766 drw_setscheme(drw, scheme[m == selmon ? SchemeTitle : SchemeNorm]); 767 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); 768 if (m->sel->isfloating) 769 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); 770 } else { 771 drw_setscheme(drw, scheme[SchemeNorm]); 772 drw_rect(drw, x, 0, w, bh, 1, 1); 773 } 774 } 775 drw_map(drw, m->barwin, 0, 0, m->ww, bh); 776 } 777 778 void 779 drawbars(void) 780 { 781 Monitor *m; 782 783 for (m = mons; m; m = m->next) 784 drawbar(m); 785 } 786 787 void 788 enternotify(XEvent *e) 789 { 790 Client *c; 791 Monitor *m; 792 XCrossingEvent *ev = &e->xcrossing; 793 794 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root) 795 return; 796 c = wintoclient(ev->window); 797 m = c ? c->mon : wintomon(ev->window); 798 if (m != selmon) { 799 unfocus(selmon->sel, 1); 800 selmon = m; 801 } else if (!c || c == selmon->sel) 802 return; 803 focus(c); 804 } 805 806 void 807 expose(XEvent *e) 808 { 809 Monitor *m; 810 XExposeEvent *ev = &e->xexpose; 811 812 if (ev->count == 0 && (m = wintomon(ev->window))) 813 drawbar(m); 814 } 815 816 void 817 focus(Client *c) 818 { 819 if (!c || !ISVISIBLE(c)) 820 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext); 821 if (selmon->sel && selmon->sel != c) 822 unfocus(selmon->sel, 0); 823 if (c) { 824 if (c->mon != selmon) 825 selmon = c->mon; 826 if (c->isurgent) 827 seturgent(c, 0); 828 detachstack(c); 829 attachstack(c); 830 grabbuttons(c, 1); 831 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); 832 setfocus(c); 833 } else { 834 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 835 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 836 } 837 selmon->sel = c; 838 drawbars(); 839 } 840 841 /* there are some broken focus acquiring clients needing extra handling */ 842 void 843 focusin(XEvent *e) 844 { 845 XFocusChangeEvent *ev = &e->xfocus; 846 847 if (selmon->sel && ev->window != selmon->sel->win) 848 setfocus(selmon->sel); 849 } 850 851 void 852 focusmon(const Arg *arg) 853 { 854 Monitor *m; 855 856 if (!mons->next) 857 return; 858 if ((m = dirtomon(arg->i)) == selmon) 859 return; 860 unfocus(selmon->sel, 0); 861 selmon = m; 862 focus(NULL); 863 } 864 865 void 866 focusstack(const Arg *arg) 867 { 868 Client *c = NULL, *i; 869 870 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen)) 871 return; 872 if (arg->i > 0) { 873 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next); 874 if (!c) 875 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next); 876 } else { 877 for (i = selmon->clients; i != selmon->sel; i = i->next) 878 if (ISVISIBLE(i)) 879 c = i; 880 if (!c) 881 for (; i; i = i->next) 882 if (ISVISIBLE(i)) 883 c = i; 884 } 885 if (c) { 886 focus(c); 887 restack(selmon); 888 } 889 } 890 891 Atom 892 getatomprop(Client *c, Atom prop) 893 { 894 int format; 895 unsigned long nitems, dl; 896 unsigned char *p = NULL; 897 Atom da, atom = None; 898 899 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM, 900 &da, &format, &nitems, &dl, &p) == Success && p) { 901 if (nitems > 0 && format == 32) 902 atom = *(long *)p; 903 XFree(p); 904 } 905 return atom; 906 } 907 908 int 909 getrootptr(int *x, int *y) 910 { 911 int di; 912 unsigned int dui; 913 Window dummy; 914 915 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui); 916 } 917 918 long 919 getstate(Window w) 920 { 921 int format; 922 long result = -1; 923 unsigned char *p = NULL; 924 unsigned long n, extra; 925 Atom real; 926 927 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], 928 &real, &format, &n, &extra, &p) != Success) 929 return -1; 930 if (n != 0 && format == 32) 931 result = *(long *)p; 932 XFree(p); 933 return result; 934 } 935 936 int 937 gettextprop(Window w, Atom atom, char *text, unsigned int size) 938 { 939 char **list = NULL; 940 int n; 941 XTextProperty name; 942 943 if (!text || size == 0) 944 return 0; 945 text[0] = '\0'; 946 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems) 947 return 0; 948 if (name.encoding == XA_STRING) { 949 strncpy(text, (char *)name.value, size - 1); 950 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) { 951 strncpy(text, *list, size - 1); 952 XFreeStringList(list); 953 } 954 text[size - 1] = '\0'; 955 XFree(name.value); 956 return 1; 957 } 958 959 void 960 grabbuttons(Client *c, int focused) 961 { 962 updatenumlockmask(); 963 { 964 unsigned int i, j; 965 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 966 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 967 if (!focused) 968 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, 969 BUTTONMASK, GrabModeSync, GrabModeSync, None, None); 970 for (i = 0; i < LENGTH(buttons); i++) 971 if (buttons[i].click == ClkClientWin) 972 for (j = 0; j < LENGTH(modifiers); j++) 973 XGrabButton(dpy, buttons[i].button, 974 buttons[i].mask | modifiers[j], 975 c->win, False, BUTTONMASK, 976 GrabModeAsync, GrabModeSync, None, None); 977 } 978 } 979 980 void 981 grabkeys(void) 982 { 983 updatenumlockmask(); 984 { 985 unsigned int i, j, k; 986 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; 987 int start, end, skip; 988 KeySym *syms; 989 990 XUngrabKey(dpy, AnyKey, AnyModifier, root); 991 XDisplayKeycodes(dpy, &start, &end); 992 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip); 993 if (!syms) 994 return; 995 for (k = start; k <= end; k++) 996 for (i = 0; i < LENGTH(keys); i++) 997 /* skip modifier codes, we do that ourselves */ 998 if (keys[i].keysym == syms[(k - start) * skip]) 999 for (j = 0; j < LENGTH(modifiers); j++) 1000 XGrabKey(dpy, k, 1001 keys[i].mod | modifiers[j], 1002 root, True, 1003 GrabModeAsync, GrabModeAsync); 1004 XFree(syms); 1005 } 1006 } 1007 1008 void 1009 incnmaster(const Arg *arg) 1010 { 1011 unsigned int i; 1012 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0); 1013 for(i=0; i<LENGTH(tags); ++i) 1014 if(selmon->tagset[selmon->seltags] & 1<<i) 1015 selmon->pertag->nmasters[i+1] = selmon->nmaster; 1016 1017 if(selmon->pertag->curtag == 0) 1018 { 1019 selmon->pertag->nmasters[0] = selmon->nmaster; 1020 } 1021 arrange(selmon); 1022 } 1023 1024 #ifdef XINERAMA 1025 static int 1026 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) 1027 { 1028 while (n--) 1029 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org 1030 && unique[n].width == info->width && unique[n].height == info->height) 1031 return 0; 1032 return 1; 1033 } 1034 #endif /* XINERAMA */ 1035 1036 void 1037 keypress(XEvent *e) 1038 { 1039 unsigned int i; 1040 KeySym keysym; 1041 XKeyEvent *ev; 1042 1043 ev = &e->xkey; 1044 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); 1045 for (i = 0; i < LENGTH(keys); i++) 1046 if (keysym == keys[i].keysym 1047 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) 1048 && keys[i].func) 1049 keys[i].func(&(keys[i].arg)); 1050 } 1051 1052 void 1053 killclient(const Arg *arg) 1054 { 1055 if (!selmon->sel) 1056 return; 1057 if (!sendevent(selmon->sel, wmatom[WMDelete])) { 1058 XGrabServer(dpy); 1059 XSetErrorHandler(xerrordummy); 1060 XSetCloseDownMode(dpy, DestroyAll); 1061 XKillClient(dpy, selmon->sel->win); 1062 XSync(dpy, False); 1063 XSetErrorHandler(xerror); 1064 XUngrabServer(dpy); 1065 } 1066 } 1067 1068 void 1069 manage(Window w, XWindowAttributes *wa) 1070 { 1071 Client *c, *t = NULL; 1072 Window trans = None; 1073 XWindowChanges wc; 1074 1075 c = ecalloc(1, sizeof(Client)); 1076 c->win = w; 1077 /* geometry */ 1078 c->x = c->oldx = wa->x; 1079 c->y = c->oldy = wa->y; 1080 c->w = c->oldw = wa->width; 1081 c->h = c->oldh = wa->height; 1082 c->oldbw = wa->border_width; 1083 1084 updatetitle(c); 1085 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { 1086 c->mon = t->mon; 1087 c->tags = t->tags; 1088 } else { 1089 c->mon = selmon; 1090 applyrules(c); 1091 } 1092 1093 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww) 1094 c->x = c->mon->wx + c->mon->ww - WIDTH(c); 1095 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh) 1096 c->y = c->mon->wy + c->mon->wh - HEIGHT(c); 1097 c->x = MAX(c->x, c->mon->wx); 1098 c->y = MAX(c->y, c->mon->wy); 1099 c->bw = borderpx; 1100 1101 wc.border_width = c->bw; 1102 XConfigureWindow(dpy, w, CWBorderWidth, &wc); 1103 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); 1104 configure(c); /* propagates border_width, if size doesn't change */ 1105 updatewindowtype(c); 1106 updatesizehints(c); 1107 updatewmhints(c); 1108 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); 1109 grabbuttons(c, 0); 1110 if (!c->isfloating) 1111 c->isfloating = c->oldstate = trans != None || c->isfixed; 1112 if (c->isfloating) 1113 XRaiseWindow(dpy, c->win); 1114 attach(c); 1115 attachstack(c); 1116 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend, 1117 (unsigned char *) &(c->win), 1); 1118 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */ 1119 setclientstate(c, NormalState); 1120 if (c->mon == selmon) 1121 unfocus(selmon->sel, 0); 1122 c->mon->sel = c; 1123 arrange(c->mon); 1124 XMapWindow(dpy, c->win); 1125 focus(NULL); 1126 } 1127 1128 void 1129 mappingnotify(XEvent *e) 1130 { 1131 XMappingEvent *ev = &e->xmapping; 1132 1133 XRefreshKeyboardMapping(ev); 1134 if (ev->request == MappingKeyboard) 1135 grabkeys(); 1136 } 1137 1138 void 1139 maprequest(XEvent *e) 1140 { 1141 static XWindowAttributes wa; 1142 XMapRequestEvent *ev = &e->xmaprequest; 1143 1144 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect) 1145 return; 1146 if (!wintoclient(ev->window)) 1147 manage(ev->window, &wa); 1148 } 1149 1150 void 1151 monocle(Monitor *m) 1152 { 1153 unsigned int n = 0; 1154 Client *c; 1155 1156 for (c = m->clients; c; c = c->next) 1157 if (ISVISIBLE(c)) 1158 n++; 1159 if (n > 0) /* override layout symbol */ 1160 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n); 1161 for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) 1162 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0); 1163 } 1164 1165 void 1166 motionnotify(XEvent *e) 1167 { 1168 static Monitor *mon = NULL; 1169 Monitor *m; 1170 XMotionEvent *ev = &e->xmotion; 1171 1172 if (ev->window != root) 1173 return; 1174 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) { 1175 unfocus(selmon->sel, 1); 1176 selmon = m; 1177 focus(NULL); 1178 } 1179 mon = m; 1180 } 1181 1182 void 1183 movemouse(const Arg *arg) 1184 { 1185 int x, y, ocx, ocy, nx, ny; 1186 Client *c; 1187 Monitor *m; 1188 XEvent ev; 1189 Time lasttime = 0; 1190 1191 if (!(c = selmon->sel)) 1192 return; 1193 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ 1194 return; 1195 restack(selmon); 1196 ocx = c->x; 1197 ocy = c->y; 1198 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1199 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) 1200 return; 1201 if (!getrootptr(&x, &y)) 1202 return; 1203 do { 1204 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1205 switch(ev.type) { 1206 case ConfigureRequest: 1207 case Expose: 1208 case MapRequest: 1209 handler[ev.type](&ev); 1210 break; 1211 case MotionNotify: 1212 if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate)) 1213 continue; 1214 lasttime = ev.xmotion.time; 1215 1216 nx = ocx + (ev.xmotion.x - x); 1217 ny = ocy + (ev.xmotion.y - y); 1218 if (abs(selmon->wx - nx) < snap) 1219 nx = selmon->wx; 1220 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) 1221 nx = selmon->wx + selmon->ww - WIDTH(c); 1222 if (abs(selmon->wy - ny) < snap) 1223 ny = selmon->wy; 1224 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) 1225 ny = selmon->wy + selmon->wh - HEIGHT(c); 1226 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1227 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) 1228 togglefloating(NULL); 1229 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1230 resize(c, nx, ny, c->w, c->h, 1); 1231 break; 1232 } 1233 } while (ev.type != ButtonRelease); 1234 XUngrabPointer(dpy, CurrentTime); 1235 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1236 sendmon(c, m); 1237 selmon = m; 1238 focus(NULL); 1239 } 1240 } 1241 1242 Client * 1243 nexttiled(Client *c) 1244 { 1245 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next); 1246 return c; 1247 } 1248 1249 void 1250 pop(Client *c) 1251 { 1252 detach(c); 1253 attach(c); 1254 focus(c); 1255 arrange(c->mon); 1256 } 1257 1258 void 1259 propertynotify(XEvent *e) 1260 { 1261 Client *c; 1262 Window trans; 1263 XPropertyEvent *ev = &e->xproperty; 1264 1265 if ((ev->window == root) && (ev->atom == XA_WM_NAME)) 1266 updatestatus(); 1267 else if (ev->state == PropertyDelete) 1268 return; /* ignore */ 1269 else if ((c = wintoclient(ev->window))) { 1270 switch(ev->atom) { 1271 default: break; 1272 case XA_WM_TRANSIENT_FOR: 1273 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) && 1274 (c->isfloating = (wintoclient(trans)) != NULL)) 1275 arrange(c->mon); 1276 break; 1277 case XA_WM_NORMAL_HINTS: 1278 c->hintsvalid = 0; 1279 break; 1280 case XA_WM_HINTS: 1281 updatewmhints(c); 1282 drawbars(); 1283 break; 1284 } 1285 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { 1286 updatetitle(c); 1287 if (c == c->mon->sel) 1288 drawbar(c->mon); 1289 } 1290 if (ev->atom == netatom[NetWMWindowType]) 1291 updatewindowtype(c); 1292 } 1293 } 1294 1295 void 1296 quit(const Arg *arg) 1297 { 1298 running = 0; 1299 } 1300 1301 Monitor * 1302 recttomon(int x, int y, int w, int h) 1303 { 1304 Monitor *m, *r = selmon; 1305 int a, area = 0; 1306 1307 for (m = mons; m; m = m->next) 1308 if ((a = INTERSECT(x, y, w, h, m)) > area) { 1309 area = a; 1310 r = m; 1311 } 1312 return r; 1313 } 1314 1315 void 1316 resize(Client *c, int x, int y, int w, int h, int interact) 1317 { 1318 if (applysizehints(c, &x, &y, &w, &h, interact)) 1319 resizeclient(c, x, y, w, h); 1320 } 1321 1322 void 1323 resizeclient(Client *c, int x, int y, int w, int h) 1324 { 1325 XWindowChanges wc; 1326 1327 c->oldx = c->x; c->x = wc.x = x; 1328 c->oldy = c->y; c->y = wc.y = y; 1329 c->oldw = c->w; c->w = wc.width = w; 1330 c->oldh = c->h; c->h = wc.height = h; 1331 wc.border_width = c->bw; 1332 if (((nexttiled(c->mon->clients) == c && !nexttiled(c->next)) 1333 || &monocle == c->mon->lt[c->mon->sellt]->arrange) 1334 && !c->isfullscreen && !c->isfloating 1335 && NULL != c->mon->lt[c->mon->sellt]->arrange) { 1336 c->w = wc.width += c->bw * 2; 1337 c->h = wc.height += c->bw * 2; 1338 wc.border_width = 0; 1339 } 1340 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc); 1341 configure(c); 1342 XSync(dpy, False); 1343 } 1344 1345 void 1346 resizemouse(const Arg *arg) 1347 { 1348 int ocx, ocy, nw, nh; 1349 Client *c; 1350 Monitor *m; 1351 XEvent ev; 1352 Time lasttime = 0; 1353 1354 if (!(c = selmon->sel)) 1355 return; 1356 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ 1357 return; 1358 restack(selmon); 1359 ocx = c->x; 1360 ocy = c->y; 1361 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, 1362 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) 1363 return; 1364 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1365 do { 1366 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); 1367 switch(ev.type) { 1368 case ConfigureRequest: 1369 case Expose: 1370 case MapRequest: 1371 handler[ev.type](&ev); 1372 break; 1373 case MotionNotify: 1374 if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate)) 1375 continue; 1376 lasttime = ev.xmotion.time; 1377 1378 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); 1379 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); 1380 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww 1381 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) 1382 { 1383 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange 1384 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) 1385 togglefloating(NULL); 1386 } 1387 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) 1388 resize(c, c->x, c->y, nw, nh, 1); 1389 break; 1390 } 1391 } while (ev.type != ButtonRelease); 1392 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); 1393 XUngrabPointer(dpy, CurrentTime); 1394 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1395 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { 1396 sendmon(c, m); 1397 selmon = m; 1398 focus(NULL); 1399 } 1400 } 1401 1402 void 1403 restack(Monitor *m) 1404 { 1405 Client *c; 1406 XEvent ev; 1407 XWindowChanges wc; 1408 1409 drawbar(m); 1410 if (!m->sel) 1411 return; 1412 if (m->sel->isfloating || !m->lt[m->sellt]->arrange) 1413 XRaiseWindow(dpy, m->sel->win); 1414 if (m->lt[m->sellt]->arrange) { 1415 wc.stack_mode = Below; 1416 wc.sibling = m->barwin; 1417 for (c = m->stack; c; c = c->snext) 1418 if (!c->isfloating && ISVISIBLE(c)) { 1419 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); 1420 wc.sibling = c->win; 1421 } 1422 } 1423 XSync(dpy, False); 1424 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); 1425 } 1426 1427 void 1428 run(void) 1429 { 1430 XEvent ev; 1431 /* main event loop */ 1432 XSync(dpy, False); 1433 while (running && !XNextEvent(dpy, &ev)) 1434 if (handler[ev.type]) 1435 handler[ev.type](&ev); /* call handler */ 1436 } 1437 1438 void 1439 scan(void) 1440 { 1441 unsigned int i, num; 1442 Window d1, d2, *wins = NULL; 1443 XWindowAttributes wa; 1444 1445 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { 1446 for (i = 0; i < num; i++) { 1447 if (!XGetWindowAttributes(dpy, wins[i], &wa) 1448 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) 1449 continue; 1450 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState) 1451 manage(wins[i], &wa); 1452 } 1453 for (i = 0; i < num; i++) { /* now the transients */ 1454 if (!XGetWindowAttributes(dpy, wins[i], &wa)) 1455 continue; 1456 if (XGetTransientForHint(dpy, wins[i], &d1) 1457 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) 1458 manage(wins[i], &wa); 1459 } 1460 if (wins) 1461 XFree(wins); 1462 } 1463 } 1464 1465 void 1466 sendmon(Client *c, Monitor *m) 1467 { 1468 if (c->mon == m) 1469 return; 1470 unfocus(c, 1); 1471 detach(c); 1472 detachstack(c); 1473 c->mon = m; 1474 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */ 1475 attach(c); 1476 attachstack(c); 1477 if (c->isfullscreen) 1478 resizeclient(c, m->mx, m->my, m->mw, m->mh); 1479 focus(NULL); 1480 arrange(NULL); 1481 } 1482 1483 void 1484 setclientstate(Client *c, long state) 1485 { 1486 long data[] = { state, None }; 1487 1488 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, 1489 PropModeReplace, (unsigned char *)data, 2); 1490 } 1491 1492 int 1493 sendevent(Client *c, Atom proto) 1494 { 1495 int n; 1496 Atom *protocols; 1497 int exists = 0; 1498 XEvent ev; 1499 1500 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) { 1501 while (!exists && n--) 1502 exists = protocols[n] == proto; 1503 XFree(protocols); 1504 } 1505 if (exists) { 1506 ev.type = ClientMessage; 1507 ev.xclient.window = c->win; 1508 ev.xclient.message_type = wmatom[WMProtocols]; 1509 ev.xclient.format = 32; 1510 ev.xclient.data.l[0] = proto; 1511 ev.xclient.data.l[1] = CurrentTime; 1512 XSendEvent(dpy, c->win, False, NoEventMask, &ev); 1513 } 1514 return exists; 1515 } 1516 1517 void 1518 setfocus(Client *c) 1519 { 1520 if (!c->neverfocus) 1521 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); 1522 XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW, 32, 1523 PropModeReplace, (unsigned char *)&c->win, 1); 1524 sendevent(c, wmatom[WMTakeFocus]); 1525 } 1526 1527 void 1528 setfullscreen(Client *c, int fullscreen) 1529 { 1530 if (fullscreen && !c->isfullscreen) { 1531 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1532 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1); 1533 c->isfullscreen = 1; 1534 c->oldstate = c->isfloating; 1535 c->oldbw = c->bw; 1536 c->bw = 0; 1537 c->isfloating = 1; 1538 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh); 1539 XRaiseWindow(dpy, c->win); 1540 } else if (!fullscreen && c->isfullscreen){ 1541 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, 1542 PropModeReplace, (unsigned char*)0, 0); 1543 c->isfullscreen = 0; 1544 c->isfloating = c->oldstate; 1545 c->bw = c->oldbw; 1546 c->x = c->oldx; 1547 c->y = c->oldy; 1548 c->w = c->oldw; 1549 c->h = c->oldh; 1550 resizeclient(c, c->x, c->y, c->w, c->h); 1551 arrange(c->mon); 1552 } 1553 } 1554 1555 void 1556 setlayout(const Arg *arg) 1557 { 1558 unsigned int i; 1559 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) 1560 selmon->sellt ^= 1; 1561 if (arg && arg->v) 1562 selmon->lt[selmon->sellt] = (Layout *)arg->v; 1563 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol); 1564 1565 for(i=0; i<LENGTH(tags); ++i) 1566 if(selmon->tagset[selmon->seltags] & 1<<i) 1567 { 1568 selmon->pertag->ltidxs[i+1][selmon->sellt] = selmon->lt[selmon->sellt]; 1569 selmon->pertag->sellts[i+1] = selmon->sellt; 1570 } 1571 1572 if(selmon->pertag->curtag == 0) 1573 { 1574 selmon->pertag->ltidxs[0][selmon->sellt] = selmon->lt[selmon->sellt]; 1575 selmon->pertag->sellts[0] = selmon->sellt; 1576 } 1577 1578 if (selmon->sel) 1579 arrange(selmon); 1580 else 1581 drawbar(selmon); 1582 } 1583 1584 /* arg > 1.0 will set mfact absolutely */ 1585 void 1586 setmfact(const Arg *arg) 1587 { 1588 float f; 1589 unsigned int i; 1590 1591 if (!arg || !selmon->lt[selmon->sellt]->arrange) 1592 return; 1593 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; 1594 if (arg->f == 0.0) 1595 f = mfact; 1596 if (f < 0.05 || f > 0.95) 1597 return; 1598 selmon->mfact = f; 1599 for(i=0; i<LENGTH(tags); ++i) 1600 if(selmon->tagset[selmon->seltags] & 1<<i) 1601 selmon->pertag->mfacts[i+1] = f; 1602 1603 if(selmon->pertag->curtag == 0) 1604 { 1605 selmon->pertag->mfacts[0] = f; 1606 } 1607 arrange(selmon); 1608 } 1609 1610 void 1611 setup(void) 1612 { 1613 int i; 1614 XSetWindowAttributes wa; 1615 Atom utf8string; 1616 struct sigaction sa; 1617 1618 /* do not transform children into zombies when they terminate */ 1619 sigemptyset(&sa.sa_mask); 1620 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART; 1621 sa.sa_handler = SIG_IGN; 1622 sigaction(SIGCHLD, &sa, NULL); 1623 1624 /* clean up any zombies (inherited from .xinitrc etc) immediately */ 1625 while (waitpid(-1, NULL, WNOHANG) > 0); 1626 1627 /* init screen */ 1628 screen = DefaultScreen(dpy); 1629 sw = DisplayWidth(dpy, screen); 1630 sh = DisplayHeight(dpy, screen); 1631 root = RootWindow(dpy, screen); 1632 drw = drw_create(dpy, screen, root, sw, sh); 1633 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 1634 die("no fonts could be loaded."); 1635 lrpad = drw->fonts->h; 1636 bh = drw->fonts->h + 2; 1637 updategeom(); 1638 /* init atoms */ 1639 utf8string = XInternAtom(dpy, "UTF8_STRING", False); 1640 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); 1641 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); 1642 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); 1643 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False); 1644 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False); 1645 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); 1646 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); 1647 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False); 1648 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False); 1649 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False); 1650 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); 1651 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); 1652 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); 1653 /* init cursors */ 1654 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); 1655 cursor[CurResize] = drw_cur_create(drw, XC_sizing); 1656 cursor[CurMove] = drw_cur_create(drw, XC_fleur); 1657 /* init appearance */ 1658 scheme = ecalloc(LENGTH(colors), sizeof(Clr *)); 1659 for (i = 0; i < LENGTH(colors); i++) 1660 scheme[i] = drw_scm_create(drw, colors[i], 3); 1661 /* init bars */ 1662 updatebars(); 1663 updatestatus(); 1664 /* supporting window for NetWMCheck */ 1665 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); 1666 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, 1667 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1668 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, 1669 PropModeReplace, (unsigned char *) "dwm", 3); 1670 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, 1671 PropModeReplace, (unsigned char *) &wmcheckwin, 1); 1672 /* EWMH support per view */ 1673 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, 1674 PropModeReplace, (unsigned char *) netatom, NetLast); 1675 XDeleteProperty(dpy, root, netatom[NetClientList]); 1676 /* select events */ 1677 wa.cursor = cursor[CurNormal]->cursor; 1678 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask 1679 |ButtonPressMask|PointerMotionMask|EnterWindowMask 1680 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask; 1681 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa); 1682 XSelectInput(dpy, root, wa.event_mask); 1683 grabkeys(); 1684 focus(NULL); 1685 } 1686 1687 void 1688 seturgent(Client *c, int urg) 1689 { 1690 XWMHints *wmh; 1691 1692 c->isurgent = urg; 1693 if (!(wmh = XGetWMHints(dpy, c->win))) 1694 return; 1695 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint); 1696 XSetWMHints(dpy, c->win, wmh); 1697 XFree(wmh); 1698 } 1699 1700 void 1701 showhide(Client *c) 1702 { 1703 if (!c) 1704 return; 1705 if (ISVISIBLE(c)) { 1706 /* show clients top down */ 1707 XMoveWindow(dpy, c->win, c->x, c->y); 1708 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen) 1709 resize(c, c->x, c->y, c->w, c->h, 0); 1710 showhide(c->snext); 1711 } else { 1712 /* hide clients bottom up */ 1713 showhide(c->snext); 1714 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y); 1715 } 1716 } 1717 1718 void 1719 spawn(const Arg *arg) 1720 { 1721 struct sigaction sa; 1722 1723 if (arg->v == dmenucmd) 1724 dmenumon[0] = '0' + selmon->num; 1725 if (fork() == 0) { 1726 if (dpy) 1727 close(ConnectionNumber(dpy)); 1728 setsid(); 1729 1730 sigemptyset(&sa.sa_mask); 1731 sa.sa_flags = 0; 1732 sa.sa_handler = SIG_DFL; 1733 sigaction(SIGCHLD, &sa, NULL); 1734 1735 execvp(((char **)arg->v)[0], (char **)arg->v); 1736 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]); 1737 } 1738 } 1739 1740 void 1741 tag(const Arg *arg) 1742 { 1743 if (selmon->sel && arg->ui & TAGMASK) { 1744 selmon->sel->tags = arg->ui & TAGMASK; 1745 focus(NULL); 1746 arrange(selmon); 1747 } 1748 } 1749 1750 void 1751 tagmon(const Arg *arg) 1752 { 1753 if (!selmon->sel || !mons->next) 1754 return; 1755 sendmon(selmon->sel, dirtomon(arg->i)); 1756 } 1757 1758 void 1759 tile(Monitor *m) 1760 { 1761 unsigned int i, n, h, mw, my, ty; 1762 Client *c; 1763 1764 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++); 1765 if (n == 0) 1766 return; 1767 1768 if (n > m->nmaster) 1769 mw = m->nmaster ? m->ww * m->mfact : 0; 1770 else 1771 mw = m->ww; 1772 for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) 1773 if (i < m->nmaster) { 1774 h = (m->wh - my) / (MIN(n, m->nmaster) - i); 1775 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0); 1776 if (my + HEIGHT(c) < m->wh) 1777 my += HEIGHT(c); 1778 } else { 1779 h = (m->wh - ty) / (n - i); 1780 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0); 1781 if (ty + HEIGHT(c) < m->wh) 1782 ty += HEIGHT(c); 1783 } 1784 } 1785 1786 void 1787 togglebar(const Arg *arg) 1788 { 1789 unsigned int i; 1790 selmon->showbar = !selmon->showbar; 1791 for(i=0; i<LENGTH(tags); ++i) 1792 if(selmon->tagset[selmon->seltags] & 1<<i) 1793 selmon->pertag->showbars[i+1] = selmon->showbar; 1794 1795 if(selmon->pertag->curtag == 0) 1796 { 1797 selmon->pertag->showbars[0] = selmon->showbar; 1798 } 1799 updatebarpos(selmon); 1800 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); 1801 arrange(selmon); 1802 } 1803 1804 void 1805 togglefloating(const Arg *arg) 1806 { 1807 if (!selmon->sel) 1808 return; 1809 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */ 1810 return; 1811 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed; 1812 if (selmon->sel->isfloating) 1813 resize(selmon->sel, selmon->sel->x, selmon->sel->y, 1814 selmon->sel->w, selmon->sel->h, 0); 1815 arrange(selmon); 1816 } 1817 1818 void 1819 togglefullscr(const Arg *arg) 1820 { 1821 if(selmon->sel) setfullscreen(selmon->sel, !selmon->sel->isfullscreen); 1822 } 1823 1824 void 1825 toggletag(const Arg *arg) 1826 { 1827 unsigned int newtags; 1828 1829 if (!selmon->sel) 1830 return; 1831 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK); 1832 if (newtags) { 1833 selmon->sel->tags = newtags; 1834 focus(NULL); 1835 arrange(selmon); 1836 } 1837 } 1838 1839 void 1840 toggleview(const Arg *arg) 1841 { 1842 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK); 1843 int i; 1844 1845 if (newtagset) { 1846 selmon->tagset[selmon->seltags] = newtagset; 1847 1848 if (newtagset == ~0) { 1849 selmon->pertag->prevtag = selmon->pertag->curtag; 1850 selmon->pertag->curtag = 0; 1851 } 1852 1853 /* test if the user did not select the same tag */ 1854 if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) { 1855 selmon->pertag->prevtag = selmon->pertag->curtag; 1856 for (i = 0; !(newtagset & 1 << i); i++) ; 1857 selmon->pertag->curtag = i + 1; 1858 } 1859 1860 /* apply settings for this view */ 1861 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag]; 1862 selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag]; 1863 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag]; 1864 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt]; 1865 selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1]; 1866 1867 if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag]) 1868 togglebar(NULL); 1869 1870 focus(NULL); 1871 arrange(selmon); 1872 } 1873 } 1874 1875 void 1876 unfocus(Client *c, int setfocus) 1877 { 1878 if (!c) 1879 return; 1880 grabbuttons(c, 0); 1881 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); 1882 if (setfocus) { 1883 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); 1884 XDeleteProperty(dpy, root, netatom[NetActiveWindow]); 1885 } 1886 } 1887 1888 void 1889 unmanage(Client *c, int destroyed) 1890 { 1891 Monitor *m = c->mon; 1892 XWindowChanges wc; 1893 1894 detach(c); 1895 detachstack(c); 1896 if (!destroyed) { 1897 wc.border_width = c->oldbw; 1898 XGrabServer(dpy); /* avoid race conditions */ 1899 XSetErrorHandler(xerrordummy); 1900 XSelectInput(dpy, c->win, NoEventMask); 1901 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ 1902 XUngrabButton(dpy, AnyButton, AnyModifier, c->win); 1903 setclientstate(c, WithdrawnState); 1904 XSync(dpy, False); 1905 XSetErrorHandler(xerror); 1906 XUngrabServer(dpy); 1907 } 1908 free(c); 1909 focus(NULL); 1910 updateclientlist(); 1911 arrange(m); 1912 } 1913 1914 void 1915 unmapnotify(XEvent *e) 1916 { 1917 Client *c; 1918 XUnmapEvent *ev = &e->xunmap; 1919 1920 if ((c = wintoclient(ev->window))) { 1921 if (ev->send_event) 1922 setclientstate(c, WithdrawnState); 1923 else 1924 unmanage(c, 0); 1925 } 1926 } 1927 1928 void 1929 updatebars(void) 1930 { 1931 Monitor *m; 1932 XSetWindowAttributes wa = { 1933 .override_redirect = True, 1934 .background_pixmap = ParentRelative, 1935 .event_mask = ButtonPressMask|ExposureMask 1936 }; 1937 XClassHint ch = {"dwm", "dwm"}; 1938 for (m = mons; m; m = m->next) { 1939 if (m->barwin) 1940 continue; 1941 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), 1942 CopyFromParent, DefaultVisual(dpy, screen), 1943 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); 1944 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); 1945 XMapRaised(dpy, m->barwin); 1946 XSetClassHint(dpy, m->barwin, &ch); 1947 } 1948 } 1949 1950 void 1951 updatebarpos(Monitor *m) 1952 { 1953 m->wy = m->my; 1954 m->wh = m->mh; 1955 if (m->showbar) { 1956 m->wh -= bh; 1957 m->by = m->topbar ? m->wy : m->wy + m->wh; 1958 m->wy = m->topbar ? m->wy + bh : m->wy; 1959 } else 1960 m->by = -bh; 1961 } 1962 1963 void 1964 updateclientlist(void) 1965 { 1966 Client *c; 1967 Monitor *m; 1968 1969 XDeleteProperty(dpy, root, netatom[NetClientList]); 1970 for (m = mons; m; m = m->next) 1971 for (c = m->clients; c; c = c->next) 1972 XChangeProperty(dpy, root, netatom[NetClientList], 1973 XA_WINDOW, 32, PropModeAppend, 1974 (unsigned char *) &(c->win), 1); 1975 } 1976 1977 int 1978 updategeom(void) 1979 { 1980 int dirty = 0; 1981 1982 #ifdef XINERAMA 1983 if (XineramaIsActive(dpy)) { 1984 int i, j, n, nn; 1985 Client *c; 1986 Monitor *m; 1987 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn); 1988 XineramaScreenInfo *unique = NULL; 1989 1990 for (n = 0, m = mons; m; m = m->next, n++); 1991 /* only consider unique geometries as separate screens */ 1992 unique = ecalloc(nn, sizeof(XineramaScreenInfo)); 1993 for (i = 0, j = 0; i < nn; i++) 1994 if (isuniquegeom(unique, j, &info[i])) 1995 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo)); 1996 XFree(info); 1997 nn = j; 1998 1999 /* new monitors if nn > n */ 2000 for (i = n; i < nn; i++) { 2001 for (m = mons; m && m->next; m = m->next); 2002 if (m) 2003 m->next = createmon(); 2004 else 2005 mons = createmon(); 2006 } 2007 for (i = 0, m = mons; i < nn && m; m = m->next, i++) 2008 if (i >= n 2009 || unique[i].x_org != m->mx || unique[i].y_org != m->my 2010 || unique[i].width != m->mw || unique[i].height != m->mh) 2011 { 2012 dirty = 1; 2013 m->num = i; 2014 m->mx = m->wx = unique[i].x_org; 2015 m->my = m->wy = unique[i].y_org; 2016 m->mw = m->ww = unique[i].width; 2017 m->mh = m->wh = unique[i].height; 2018 updatebarpos(m); 2019 } 2020 /* removed monitors if n > nn */ 2021 for (i = nn; i < n; i++) { 2022 for (m = mons; m && m->next; m = m->next); 2023 while ((c = m->clients)) { 2024 dirty = 1; 2025 m->clients = c->next; 2026 detachstack(c); 2027 c->mon = mons; 2028 attach(c); 2029 attachstack(c); 2030 } 2031 if (m == selmon) 2032 selmon = mons; 2033 cleanupmon(m); 2034 } 2035 free(unique); 2036 } else 2037 #endif /* XINERAMA */ 2038 { /* default monitor setup */ 2039 if (!mons) 2040 mons = createmon(); 2041 if (mons->mw != sw || mons->mh != sh) { 2042 dirty = 1; 2043 mons->mw = mons->ww = sw; 2044 mons->mh = mons->wh = sh; 2045 updatebarpos(mons); 2046 } 2047 } 2048 if (dirty) { 2049 selmon = mons; 2050 selmon = wintomon(root); 2051 } 2052 return dirty; 2053 } 2054 2055 void 2056 updatenumlockmask(void) 2057 { 2058 unsigned int i, j; 2059 XModifierKeymap *modmap; 2060 2061 numlockmask = 0; 2062 modmap = XGetModifierMapping(dpy); 2063 for (i = 0; i < 8; i++) 2064 for (j = 0; j < modmap->max_keypermod; j++) 2065 if (modmap->modifiermap[i * modmap->max_keypermod + j] 2066 == XKeysymToKeycode(dpy, XK_Num_Lock)) 2067 numlockmask = (1 << i); 2068 XFreeModifiermap(modmap); 2069 } 2070 2071 void 2072 updatesizehints(Client *c) 2073 { 2074 long msize; 2075 XSizeHints size; 2076 2077 if (!XGetWMNormalHints(dpy, c->win, &size, &msize)) 2078 /* size is uninitialized, ensure that size.flags aren't used */ 2079 size.flags = PSize; 2080 if (size.flags & PBaseSize) { 2081 c->basew = size.base_width; 2082 c->baseh = size.base_height; 2083 } else if (size.flags & PMinSize) { 2084 c->basew = size.min_width; 2085 c->baseh = size.min_height; 2086 } else 2087 c->basew = c->baseh = 0; 2088 if (size.flags & PResizeInc) { 2089 c->incw = size.width_inc; 2090 c->inch = size.height_inc; 2091 } else 2092 c->incw = c->inch = 0; 2093 if (size.flags & PMaxSize) { 2094 c->maxw = size.max_width; 2095 c->maxh = size.max_height; 2096 } else 2097 c->maxw = c->maxh = 0; 2098 if (size.flags & PMinSize) { 2099 c->minw = size.min_width; 2100 c->minh = size.min_height; 2101 } else if (size.flags & PBaseSize) { 2102 c->minw = size.base_width; 2103 c->minh = size.base_height; 2104 } else 2105 c->minw = c->minh = 0; 2106 if (size.flags & PAspect) { 2107 c->mina = (float)size.min_aspect.y / size.min_aspect.x; 2108 c->maxa = (float)size.max_aspect.x / size.max_aspect.y; 2109 } else 2110 c->maxa = c->mina = 0.0; 2111 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh); 2112 c->hintsvalid = 1; 2113 } 2114 2115 void 2116 updatestatus(void) 2117 { 2118 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) 2119 strcpy(stext, "dwm-"VERSION); 2120 drawbar(selmon); 2121 } 2122 2123 void 2124 updatetitle(Client *c) 2125 { 2126 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) 2127 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name); 2128 if (c->name[0] == '\0') /* hack to mark broken clients */ 2129 strcpy(c->name, broken); 2130 } 2131 2132 void 2133 updatewindowtype(Client *c) 2134 { 2135 Atom state = getatomprop(c, netatom[NetWMState]); 2136 Atom wtype = getatomprop(c, netatom[NetWMWindowType]); 2137 2138 if (state == netatom[NetWMFullscreen]) 2139 setfullscreen(c, 1); 2140 if (wtype == netatom[NetWMWindowTypeDialog]) 2141 c->isfloating = 1; 2142 } 2143 2144 void 2145 updatewmhints(Client *c) 2146 { 2147 XWMHints *wmh; 2148 2149 if ((wmh = XGetWMHints(dpy, c->win))) { 2150 if (c == selmon->sel && wmh->flags & XUrgencyHint) { 2151 wmh->flags &= ~XUrgencyHint; 2152 XSetWMHints(dpy, c->win, wmh); 2153 } else 2154 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0; 2155 if (wmh->flags & InputHint) 2156 c->neverfocus = !wmh->input; 2157 else 2158 c->neverfocus = 0; 2159 XFree(wmh); 2160 } 2161 } 2162 2163 void 2164 movestack(const Arg *arg) { 2165 Client *c = NULL, *p = NULL, *pc = NULL, *i; 2166 2167 if(arg->i > 0) { 2168 /* find the client after selmon->sel */ 2169 for(c = selmon->sel->next; c && (!ISVISIBLE(c) || c->isfloating); c = c->next); 2170 if(!c) 2171 for(c = selmon->clients; c && (!ISVISIBLE(c) || c->isfloating); c = c->next); 2172 2173 } 2174 else { 2175 /* find the client before selmon->sel */ 2176 for(i = selmon->clients; i != selmon->sel; i = i->next) 2177 if(ISVISIBLE(i) && !i->isfloating) 2178 c = i; 2179 if(!c) 2180 for(; i; i = i->next) 2181 if(ISVISIBLE(i) && !i->isfloating) 2182 c = i; 2183 } 2184 /* find the client before selmon->sel and c */ 2185 for(i = selmon->clients; i && (!p || !pc); i = i->next) { 2186 if(i->next == selmon->sel) 2187 p = i; 2188 if(i->next == c) 2189 pc = i; 2190 } 2191 2192 /* swap c and selmon->sel selmon->clients in the selmon->clients list */ 2193 if(c && c != selmon->sel) { 2194 Client *temp = selmon->sel->next==c?selmon->sel:selmon->sel->next; 2195 selmon->sel->next = c->next==selmon->sel?c:c->next; 2196 c->next = temp; 2197 2198 if(p && p != c) 2199 p->next = c; 2200 if(pc && pc != selmon->sel) 2201 pc->next = selmon->sel; 2202 2203 if(selmon->sel == selmon->clients) 2204 selmon->clients = c; 2205 else if(c == selmon->clients) 2206 selmon->clients = selmon->sel; 2207 2208 arrange(selmon); 2209 } 2210 } 2211 2212 void 2213 view(const Arg *arg) 2214 { 2215 int i; 2216 unsigned int tmptag; 2217 2218 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) 2219 return; 2220 selmon->seltags ^= 1; /* toggle sel tagset */ 2221 if (arg->ui & TAGMASK) { 2222 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK; 2223 selmon->pertag->prevtag = selmon->pertag->curtag; 2224 2225 if (arg->ui == ~0) 2226 selmon->pertag->curtag = 0; 2227 else { 2228 for (i = 0; !(arg->ui & 1 << i); i++) ; 2229 selmon->pertag->curtag = i + 1; 2230 } 2231 } else { 2232 tmptag = selmon->pertag->prevtag; 2233 selmon->pertag->prevtag = selmon->pertag->curtag; 2234 selmon->pertag->curtag = tmptag; 2235 } 2236 2237 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag]; 2238 selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag]; 2239 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag]; 2240 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt]; 2241 selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1]; 2242 2243 if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag]) 2244 togglebar(NULL); 2245 focus(NULL); 2246 2247 arrange(selmon); 2248 } 2249 2250 Client * 2251 wintoclient(Window w) 2252 { 2253 Client *c; 2254 Monitor *m; 2255 2256 for (m = mons; m; m = m->next) 2257 for (c = m->clients; c; c = c->next) 2258 if (c->win == w) 2259 return c; 2260 return NULL; 2261 } 2262 2263 Monitor * 2264 wintomon(Window w) 2265 { 2266 int x, y; 2267 Client *c; 2268 Monitor *m; 2269 2270 if (w == root && getrootptr(&x, &y)) 2271 return recttomon(x, y, 1, 1); 2272 for (m = mons; m; m = m->next) 2273 if (w == m->barwin) 2274 return m; 2275 if ((c = wintoclient(w))) 2276 return c->mon; 2277 return selmon; 2278 } 2279 2280 /* There's no way to check accesses to destroyed windows, thus those cases are 2281 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs 2282 * default error handler, which may call exit. */ 2283 int 2284 xerror(Display *dpy, XErrorEvent *ee) 2285 { 2286 if (ee->error_code == BadWindow 2287 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) 2288 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) 2289 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) 2290 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) 2291 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) 2292 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess) 2293 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) 2294 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) 2295 return 0; 2296 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", 2297 ee->request_code, ee->error_code); 2298 return xerrorxlib(dpy, ee); /* may call exit */ 2299 } 2300 2301 int 2302 xerrordummy(Display *dpy, XErrorEvent *ee) 2303 { 2304 return 0; 2305 } 2306 2307 /* Startup Error handler to check if another window manager 2308 * is already running. */ 2309 int 2310 xerrorstart(Display *dpy, XErrorEvent *ee) 2311 { 2312 die("dwm: another window manager is already running"); 2313 return -1; 2314 } 2315 2316 void 2317 zoom(const Arg *arg) 2318 { 2319 Client *c = selmon->sel; 2320 2321 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating) 2322 return; 2323 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next))) 2324 return; 2325 pop(c); 2326 } 2327 2328 int 2329 main(int argc, char *argv[]) 2330 { 2331 if (argc == 2 && !strcmp("-v", argv[1])) 2332 die("dwm-"VERSION); 2333 else if (argc != 1) 2334 die("usage: dwm [-v]"); 2335 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 2336 fputs("warning: no locale support\n", stderr); 2337 if (!(dpy = XOpenDisplay(NULL))) 2338 die("dwm: cannot open display"); 2339 checkotherwm(); 2340 setup(); 2341 #ifdef __OpenBSD__ 2342 if (pledge("stdio rpath proc exec", NULL) == -1) 2343 die("pledge"); 2344 #endif /* __OpenBSD__ */ 2345 scan(); 2346 run(); 2347 cleanup(); 2348 XCloseDisplay(dpy); 2349 return EXIT_SUCCESS; 2350 }