Configuration file for DWM on MacBook Air
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  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 <stdarg.h>
  26. #include <signal.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. /* macros */
  43. #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
  44. #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
  45. #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
  46. #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
  47. #define LENGTH(X) (sizeof X / sizeof X[0])
  48. #define MAX(A, B) ((A) > (B) ? (A) : (B))
  49. #define MIN(A, B) ((A) < (B) ? (A) : (B))
  50. #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
  51. #define WIDTH(X) ((X)->w + 2 * (X)->bw)
  52. #define HEIGHT(X) ((X)->h + 2 * (X)->bw)
  53. #define TAGMASK ((1 << LENGTH(tags)) - 1)
  54. #define TEXTW(X) (textnw(X, strlen(X)) + dc.font.height)
  55. /* enums */
  56. enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
  57. enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
  58. enum { NetSupported, NetWMName, NetWMState,
  59. NetWMFullscreen, NetLast }; /* EWMH atoms */
  60. enum { WMProtocols, WMDelete, WMState, WMLast }; /* default atoms */
  61. enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
  62. ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
  63. typedef union {
  64. int i;
  65. unsigned int ui;
  66. float f;
  67. const void *v;
  68. } Arg;
  69. typedef struct {
  70. unsigned int click;
  71. unsigned int mask;
  72. unsigned int button;
  73. void (*func)(const Arg *arg);
  74. const Arg arg;
  75. } Button;
  76. typedef struct Monitor Monitor;
  77. typedef struct Client Client;
  78. struct Client {
  79. char name[256];
  80. float mina, maxa;
  81. int x, y, w, h;
  82. int basew, baseh, incw, inch, maxw, maxh, minw, minh;
  83. int bw, oldbw;
  84. unsigned int tags;
  85. Bool isfixed, isfloating, isurgent;
  86. Client *next;
  87. Client *snext;
  88. Monitor *mon;
  89. Window win;
  90. };
  91. typedef struct {
  92. int x, y, w, h;
  93. unsigned long norm[ColLast];
  94. unsigned long sel[ColLast];
  95. Drawable drawable;
  96. GC gc;
  97. struct {
  98. int ascent;
  99. int descent;
  100. int height;
  101. XFontSet set;
  102. XFontStruct *xfont;
  103. } font;
  104. } DC; /* draw context */
  105. typedef struct {
  106. unsigned int mod;
  107. KeySym keysym;
  108. void (*func)(const Arg *);
  109. const Arg arg;
  110. } Key;
  111. typedef struct {
  112. const char *symbol;
  113. void (*arrange)(Monitor *);
  114. } Layout;
  115. struct Monitor {
  116. char ltsymbol[16];
  117. float mfact;
  118. int num;
  119. int by; /* bar geometry */
  120. int mx, my, mw, mh; /* screen size */
  121. int wx, wy, ww, wh; /* window area */
  122. unsigned int seltags;
  123. unsigned int sellt;
  124. unsigned int tagset[2];
  125. Bool showbar;
  126. Bool topbar;
  127. Client *clients;
  128. Client *sel;
  129. Client *stack;
  130. Monitor *next;
  131. Window barwin;
  132. const Layout *lt[2];
  133. };
  134. typedef struct {
  135. const char *class;
  136. const char *instance;
  137. const char *title;
  138. unsigned int tags;
  139. Bool isfloating;
  140. int monitor;
  141. } Rule;
  142. /* function declarations */
  143. static void applyrules(Client *c);
  144. static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
  145. static void arrange(Monitor *m);
  146. static void arrangemon(Monitor *m);
  147. static void attach(Client *c);
  148. static void attachstack(Client *c);
  149. static void buttonpress(XEvent *e);
  150. static void checkotherwm(void);
  151. static void cleanup(void);
  152. static void cleanupmon(Monitor *mon);
  153. static void clearurgent(Client *c);
  154. static void clientmessage(XEvent *e);
  155. static void configure(Client *c);
  156. static void configurenotify(XEvent *e);
  157. static void configurerequest(XEvent *e);
  158. static Monitor *createmon(void);
  159. static void destroynotify(XEvent *e);
  160. static void detach(Client *c);
  161. static void detachstack(Client *c);
  162. static void die(const char *errstr, ...);
  163. static Monitor *dirtomon(int dir);
  164. static void drawbar(Monitor *m);
  165. static void drawbars(void);
  166. static void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
  167. static void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
  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 unsigned long getcolor(const char *colstr);
  175. static Bool getrootptr(int *x, int *y);
  176. static long getstate(Window w);
  177. static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
  178. static void grabbuttons(Client *c, Bool focused);
  179. static void grabkeys(void);
  180. static void initfont(const char *fontstr);
  181. static Bool isprotodel(Client *c);
  182. static void keypress(XEvent *e);
  183. static void killclient(const Arg *arg);
  184. static void manage(Window w, XWindowAttributes *wa);
  185. static void mappingnotify(XEvent *e);
  186. static void maprequest(XEvent *e);
  187. static void monocle(Monitor *m);
  188. static void movemouse(const Arg *arg);
  189. static Client *nexttiled(Client *c);
  190. static Monitor *ptrtomon(int x, int y);
  191. static void propertynotify(XEvent *e);
  192. static void quit(const Arg *arg);
  193. static void resize(Client *c, int x, int y, int w, int h, Bool interact);
  194. static void resizemouse(const Arg *arg);
  195. static void restack(Monitor *m);
  196. static void run(void);
  197. static void scan(void);
  198. static void sendmon(Client *c, Monitor *m);
  199. static void setclientstate(Client *c, long state);
  200. static void setlayout(const Arg *arg);
  201. static void setmfact(const Arg *arg);
  202. static void setup(void);
  203. static void showhide(Client *c);
  204. static void sigchld(int unused);
  205. static void spawn(const Arg *arg);
  206. static void tag(const Arg *arg);
  207. static void tagmon(const Arg *arg);
  208. static int textnw(const char *text, unsigned int len);
  209. static void tile(Monitor *);
  210. static void togglebar(const Arg *arg);
  211. static void togglefloating(const Arg *arg);
  212. static void toggletag(const Arg *arg);
  213. static void toggleview(const Arg *arg);
  214. static void unfocus(Client *c);
  215. static void unmanage(Client *c, Bool destroyed);
  216. static void unmapnotify(XEvent *e);
  217. static Bool updategeom(void);
  218. static void updatebarpos(Monitor *m);
  219. static void updatebars(void);
  220. static void updatenumlockmask(void);
  221. static void updatesizehints(Client *c);
  222. static void updatestatus(void);
  223. static void updatetitle(Client *c);
  224. static void updatewmhints(Client *c);
  225. static void view(const Arg *arg);
  226. static Client *wintoclient(Window w);
  227. static Monitor *wintomon(Window w);
  228. static int xerror(Display *dpy, XErrorEvent *ee);
  229. static int xerrordummy(Display *dpy, XErrorEvent *ee);
  230. static int xerrorstart(Display *dpy, XErrorEvent *ee);
  231. static void zoom(const Arg *arg);
  232. /* variables */
  233. static const char broken[] = "broken";
  234. static char stext[256];
  235. static int screen;
  236. static int sw, sh; /* X display screen geometry width, height */
  237. static int bh, blw = 0; /* bar geometry */
  238. static int (*xerrorxlib)(Display *, XErrorEvent *);
  239. static unsigned int numlockmask = 0;
  240. static void (*handler[LASTEvent]) (XEvent *) = {
  241. [ButtonPress] = buttonpress,
  242. [ClientMessage] = clientmessage,
  243. [ConfigureRequest] = configurerequest,
  244. [ConfigureNotify] = configurenotify,
  245. [DestroyNotify] = destroynotify,
  246. [EnterNotify] = enternotify,
  247. [Expose] = expose,
  248. [FocusIn] = focusin,
  249. [KeyPress] = keypress,
  250. [MappingNotify] = mappingnotify,
  251. [MapRequest] = maprequest,
  252. [PropertyNotify] = propertynotify,
  253. [UnmapNotify] = unmapnotify
  254. };
  255. static Atom wmatom[WMLast], netatom[NetLast];
  256. static Bool otherwm;
  257. static Bool running = True;
  258. static Cursor cursor[CurLast];
  259. static Display *dpy;
  260. static DC dc;
  261. static Monitor *mons = NULL, *selmon = NULL;
  262. static Window root;
  263. /* configuration, allows nested code to access above variables */
  264. #include "config.h"
  265. /* compile-time check if all tags fit into an unsigned int bit array. */
  266. struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
  267. /* function implementations */
  268. void
  269. applyrules(Client *c) {
  270. const char *class, *instance;
  271. unsigned int i;
  272. const Rule *r;
  273. Monitor *m;
  274. XClassHint ch = { 0 };
  275. /* rule matching */
  276. c->isfloating = c->tags = 0;
  277. if(XGetClassHint(dpy, c->win, &ch)) {
  278. class = ch.res_class ? ch.res_class : broken;
  279. instance = ch.res_name ? ch.res_name : broken;
  280. for(i = 0; i < LENGTH(rules); i++) {
  281. r = &rules[i];
  282. if((!r->title || strstr(c->name, r->title))
  283. && (!r->class || strstr(class, r->class))
  284. && (!r->instance || strstr(instance, r->instance)))
  285. {
  286. c->isfloating = r->isfloating;
  287. c->tags |= r->tags;
  288. for(m = mons; m && m->num != r->monitor; m = m->next);
  289. if(m)
  290. c->mon = m;
  291. }
  292. }
  293. if(ch.res_class)
  294. XFree(ch.res_class);
  295. if(ch.res_name)
  296. XFree(ch.res_name);
  297. }
  298. c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
  299. }
  300. Bool
  301. applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
  302. Bool baseismin;
  303. Monitor *m = c->mon;
  304. /* set minimum possible */
  305. *w = MAX(1, *w);
  306. *h = MAX(1, *h);
  307. if(interact) {
  308. if(*x > sw)
  309. *x = sw - WIDTH(c);
  310. if(*y > sh)
  311. *y = sh - HEIGHT(c);
  312. if(*x + *w + 2 * c->bw < 0)
  313. *x = 0;
  314. if(*y + *h + 2 * c->bw < 0)
  315. *y = 0;
  316. }
  317. else {
  318. if(*x > m->mx + m->mw)
  319. *x = m->mx + m->mw - WIDTH(c);
  320. if(*y > m->my + m->mh)
  321. *y = m->my + m->mh - HEIGHT(c);
  322. if(*x + *w + 2 * c->bw < m->mx)
  323. *x = m->mx;
  324. if(*y + *h + 2 * c->bw < m->my)
  325. *y = m->my;
  326. }
  327. if(*h < bh)
  328. *h = bh;
  329. if(*w < bh)
  330. *w = bh;
  331. if(resizehints || c->isfloating) {
  332. /* see last two sentences in ICCCM 4.1.2.3 */
  333. baseismin = c->basew == c->minw && c->baseh == c->minh;
  334. if(!baseismin) { /* temporarily remove base dimensions */
  335. *w -= c->basew;
  336. *h -= c->baseh;
  337. }
  338. /* adjust for aspect limits */
  339. if(c->mina > 0 && c->maxa > 0) {
  340. if(c->maxa < (float)*w / *h)
  341. *w = *h * c->maxa + 0.5;
  342. else if(c->mina < (float)*h / *w)
  343. *h = *w * c->mina + 0.5;
  344. }
  345. if(baseismin) { /* increment calculation requires this */
  346. *w -= c->basew;
  347. *h -= c->baseh;
  348. }
  349. /* adjust for increment value */
  350. if(c->incw)
  351. *w -= *w % c->incw;
  352. if(c->inch)
  353. *h -= *h % c->inch;
  354. /* restore base dimensions */
  355. *w += c->basew;
  356. *h += c->baseh;
  357. *w = MAX(*w, c->minw);
  358. *h = MAX(*h, c->minh);
  359. if(c->maxw)
  360. *w = MIN(*w, c->maxw);
  361. if(c->maxh)
  362. *h = MIN(*h, c->maxh);
  363. }
  364. return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
  365. }
  366. void
  367. arrange(Monitor *m) {
  368. if(m)
  369. showhide(m->stack);
  370. else for(m = mons; m; m = m->next)
  371. showhide(m->stack);
  372. focus(NULL);
  373. if(m)
  374. arrangemon(m);
  375. else for(m = mons; m; m = m->next)
  376. arrangemon(m);
  377. }
  378. void
  379. arrangemon(Monitor *m) {
  380. strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
  381. if(m->lt[m->sellt]->arrange)
  382. m->lt[m->sellt]->arrange(m);
  383. restack(m);
  384. }
  385. void
  386. attach(Client *c) {
  387. c->next = c->mon->clients;
  388. c->mon->clients = c;
  389. }
  390. void
  391. attachstack(Client *c) {
  392. c->snext = c->mon->stack;
  393. c->mon->stack = c;
  394. }
  395. void
  396. buttonpress(XEvent *e) {
  397. unsigned int i, x, click;
  398. Arg arg = {0};
  399. Client *c;
  400. Monitor *m;
  401. XButtonPressedEvent *ev = &e->xbutton;
  402. click = ClkRootWin;
  403. /* focus monitor if necessary */
  404. if((m = wintomon(ev->window)) && m != selmon) {
  405. unfocus(selmon->sel);
  406. selmon = m;
  407. focus(NULL);
  408. }
  409. if(ev->window == selmon->barwin) {
  410. i = x = 0;
  411. do {
  412. x += TEXTW(tags[i]);
  413. } while(ev->x >= x && ++i < LENGTH(tags));
  414. if(i < LENGTH(tags)) {
  415. click = ClkTagBar;
  416. arg.ui = 1 << i;
  417. }
  418. else if(ev->x < x + blw)
  419. click = ClkLtSymbol;
  420. else if(ev->x > selmon->wx + selmon->ww - TEXTW(stext))
  421. click = ClkStatusText;
  422. else
  423. click = ClkWinTitle;
  424. }
  425. else if((c = wintoclient(ev->window))) {
  426. focus(c);
  427. click = ClkClientWin;
  428. }
  429. for(i = 0; i < LENGTH(buttons); i++)
  430. if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
  431. && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
  432. buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
  433. }
  434. void
  435. checkotherwm(void) {
  436. otherwm = False;
  437. xerrorxlib = XSetErrorHandler(xerrorstart);
  438. /* this causes an error if some other window manager is running */
  439. XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
  440. XSync(dpy, False);
  441. if(otherwm)
  442. die("dwm: another window manager is already running\n");
  443. XSetErrorHandler(xerror);
  444. XSync(dpy, False);
  445. }
  446. void
  447. cleanup(void) {
  448. Arg a = {.ui = ~0};
  449. Layout foo = { "", NULL };
  450. Monitor *m;
  451. view(&a);
  452. selmon->lt[selmon->sellt] = &foo;
  453. for(m = mons; m; m = m->next)
  454. while(m->stack)
  455. unmanage(m->stack, False);
  456. if(dc.font.set)
  457. XFreeFontSet(dpy, dc.font.set);
  458. else
  459. XFreeFont(dpy, dc.font.xfont);
  460. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  461. XFreePixmap(dpy, dc.drawable);
  462. XFreeGC(dpy, dc.gc);
  463. XFreeCursor(dpy, cursor[CurNormal]);
  464. XFreeCursor(dpy, cursor[CurResize]);
  465. XFreeCursor(dpy, cursor[CurMove]);
  466. while(mons)
  467. cleanupmon(mons);
  468. XSync(dpy, False);
  469. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  470. }
  471. void
  472. cleanupmon(Monitor *mon) {
  473. Monitor *m;
  474. if(mon == mons)
  475. mons = mons->next;
  476. else {
  477. for(m = mons; m && m->next != mon; m = m->next);
  478. m->next = mon->next;
  479. }
  480. XUnmapWindow(dpy, mon->barwin);
  481. XDestroyWindow(dpy, mon->barwin);
  482. free(mon);
  483. }
  484. void
  485. clearurgent(Client *c) {
  486. XWMHints *wmh;
  487. c->isurgent = False;
  488. if(!(wmh = XGetWMHints(dpy, c->win)))
  489. return;
  490. wmh->flags &= ~XUrgencyHint;
  491. XSetWMHints(dpy, c->win, wmh);
  492. XFree(wmh);
  493. }
  494. void
  495. configure(Client *c) {
  496. XConfigureEvent ce;
  497. ce.type = ConfigureNotify;
  498. ce.display = dpy;
  499. ce.event = c->win;
  500. ce.window = c->win;
  501. ce.x = c->x;
  502. ce.y = c->y;
  503. ce.width = c->w;
  504. ce.height = c->h;
  505. ce.border_width = c->bw;
  506. ce.above = None;
  507. ce.override_redirect = False;
  508. XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
  509. }
  510. void
  511. configurenotify(XEvent *e) {
  512. Monitor *m;
  513. XConfigureEvent *ev = &e->xconfigure;
  514. if(ev->window == root) {
  515. sw = ev->width;
  516. sh = ev->height;
  517. if(updategeom()) {
  518. if(dc.drawable != 0)
  519. XFreePixmap(dpy, dc.drawable);
  520. dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
  521. updatebars();
  522. for(m = mons; m; m = m->next)
  523. XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
  524. arrange(NULL);
  525. }
  526. }
  527. }
  528. void
  529. configurerequest(XEvent *e) {
  530. Client *c;
  531. Monitor *m;
  532. XConfigureRequestEvent *ev = &e->xconfigurerequest;
  533. XWindowChanges wc;
  534. if((c = wintoclient(ev->window))) {
  535. if(ev->value_mask & CWBorderWidth)
  536. c->bw = ev->border_width;
  537. else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
  538. m = c->mon;
  539. if(ev->value_mask & CWX)
  540. c->x = m->mx + ev->x;
  541. if(ev->value_mask & CWY)
  542. c->y = m->my + ev->y;
  543. if(ev->value_mask & CWWidth)
  544. c->w = ev->width;
  545. if(ev->value_mask & CWHeight)
  546. c->h = ev->height;
  547. if((c->x + c->w) > m->mx + m->mw && c->isfloating)
  548. c->x = m->mx + (m->mw / 2 - c->w / 2); /* center in x direction */
  549. if((c->y + c->h) > m->my + m->mh && c->isfloating)
  550. c->y = m->my + (m->mh / 2 - c->h / 2); /* center in y direction */
  551. if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
  552. configure(c);
  553. if(ISVISIBLE(c))
  554. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  555. }
  556. else
  557. configure(c);
  558. }
  559. else {
  560. wc.x = ev->x;
  561. wc.y = ev->y;
  562. wc.width = ev->width;
  563. wc.height = ev->height;
  564. wc.border_width = ev->border_width;
  565. wc.sibling = ev->above;
  566. wc.stack_mode = ev->detail;
  567. XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
  568. }
  569. XSync(dpy, False);
  570. }
  571. Monitor *
  572. createmon(void) {
  573. Monitor *m;
  574. if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
  575. die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
  576. m->tagset[0] = m->tagset[1] = 1;
  577. m->mfact = mfact;
  578. m->showbar = showbar;
  579. m->topbar = topbar;
  580. m->lt[0] = &layouts[0];
  581. m->lt[1] = &layouts[1 % LENGTH(layouts)];
  582. strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
  583. return m;
  584. }
  585. void
  586. destroynotify(XEvent *e) {
  587. Client *c;
  588. XDestroyWindowEvent *ev = &e->xdestroywindow;
  589. if((c = wintoclient(ev->window)))
  590. unmanage(c, True);
  591. }
  592. void
  593. detach(Client *c) {
  594. Client **tc;
  595. for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
  596. *tc = c->next;
  597. }
  598. void
  599. detachstack(Client *c) {
  600. Client **tc, *t;
  601. for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
  602. *tc = c->snext;
  603. if(c == c->mon->sel) {
  604. for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
  605. c->mon->sel = t;
  606. }
  607. }
  608. void
  609. die(const char *errstr, ...) {
  610. va_list ap;
  611. va_start(ap, errstr);
  612. vfprintf(stderr, errstr, ap);
  613. va_end(ap);
  614. exit(EXIT_FAILURE);
  615. }
  616. Monitor *
  617. dirtomon(int dir) {
  618. Monitor *m = NULL;
  619. if(dir > 0) {
  620. if(!(m = selmon->next))
  621. m = mons;
  622. }
  623. else {
  624. if(selmon == mons)
  625. for(m = mons; m->next; m = m->next);
  626. else
  627. for(m = mons; m->next != selmon; m = m->next);
  628. }
  629. return m;
  630. }
  631. void
  632. drawbar(Monitor *m) {
  633. int x;
  634. unsigned int i, occ = 0, urg = 0;
  635. unsigned long *col;
  636. Client *c;
  637. for(c = m->clients; c; c = c->next) {
  638. occ |= c->tags;
  639. if(c->isurgent)
  640. urg |= c->tags;
  641. }
  642. dc.x = 0;
  643. for(i = 0; i < LENGTH(tags); i++) {
  644. dc.w = TEXTW(tags[i]);
  645. col = m->tagset[m->seltags] & 1 << i ? dc.sel : dc.norm;
  646. drawtext(tags[i], col, urg & 1 << i);
  647. drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
  648. occ & 1 << i, urg & 1 << i, col);
  649. dc.x += dc.w;
  650. }
  651. dc.w = blw = TEXTW(m->ltsymbol);
  652. drawtext(m->ltsymbol, dc.norm, False);
  653. dc.x += dc.w;
  654. x = dc.x;
  655. if(m == selmon) { /* status is only drawn on selected monitor */
  656. dc.w = TEXTW(stext);
  657. dc.x = m->ww - dc.w;
  658. if(dc.x < x) {
  659. dc.x = x;
  660. dc.w = m->ww - x;
  661. }
  662. drawtext(stext, dc.norm, False);
  663. }
  664. else
  665. dc.x = m->ww;
  666. if((dc.w = dc.x - x) > bh) {
  667. dc.x = x;
  668. if(m->sel) {
  669. col = m == selmon ? dc.sel : dc.norm;
  670. drawtext(m->sel->name, col, False);
  671. drawsquare(m->sel->isfixed, m->sel->isfloating, False, col);
  672. }
  673. else
  674. drawtext(NULL, dc.norm, False);
  675. }
  676. XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
  677. XSync(dpy, False);
  678. }
  679. void
  680. drawbars(void) {
  681. Monitor *m;
  682. for(m = mons; m; m = m->next)
  683. drawbar(m);
  684. }
  685. void
  686. drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
  687. int x;
  688. XGCValues gcv;
  689. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  690. gcv.foreground = col[invert ? ColBG : ColFG];
  691. XChangeGC(dpy, dc.gc, GCForeground, &gcv);
  692. x = (dc.font.ascent + dc.font.descent + 2) / 4;
  693. r.x = dc.x + 1;
  694. r.y = dc.y + 1;
  695. if(filled) {
  696. r.width = r.height = x + 1;
  697. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  698. }
  699. else if(empty) {
  700. r.width = r.height = x;
  701. XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  702. }
  703. }
  704. void
  705. drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
  706. char buf[256];
  707. int i, x, y, h, len, olen;
  708. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  709. XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
  710. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  711. if(!text)
  712. return;
  713. olen = strlen(text);
  714. h = dc.font.ascent + dc.font.descent;
  715. y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
  716. x = dc.x + (h / 2);
  717. /* shorten text if necessary */
  718. for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
  719. if(!len)
  720. return;
  721. memcpy(buf, text, len);
  722. if(len < olen)
  723. for(i = len; i && i > len - 3; buf[--i] = '.');
  724. XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
  725. if(dc.font.set)
  726. XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
  727. else
  728. XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
  729. }
  730. void
  731. enternotify(XEvent *e) {
  732. Client *c;
  733. Monitor *m;
  734. XCrossingEvent *ev = &e->xcrossing;
  735. if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
  736. return;
  737. if((m = wintomon(ev->window)) && m != selmon) {
  738. unfocus(selmon->sel);
  739. selmon = m;
  740. }
  741. if((c = wintoclient(ev->window)))
  742. focus(c);
  743. else
  744. focus(NULL);
  745. }
  746. void
  747. expose(XEvent *e) {
  748. Monitor *m;
  749. XExposeEvent *ev = &e->xexpose;
  750. if(ev->count == 0 && (m = wintomon(ev->window)))
  751. drawbar(m);
  752. }
  753. void
  754. focus(Client *c) {
  755. if(!c || !ISVISIBLE(c))
  756. for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
  757. if(selmon->sel)
  758. unfocus(selmon->sel);
  759. if(c) {
  760. if(c->mon != selmon)
  761. selmon = c->mon;
  762. if(c->isurgent)
  763. clearurgent(c);
  764. detachstack(c);
  765. attachstack(c);
  766. grabbuttons(c, True);
  767. XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
  768. XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  769. }
  770. else
  771. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  772. selmon->sel = c;
  773. drawbars();
  774. }
  775. void
  776. focusin(XEvent *e) { /* there are some broken focus acquiring clients */
  777. XFocusChangeEvent *ev = &e->xfocus;
  778. if(selmon->sel && ev->window != selmon->sel->win)
  779. XSetInputFocus(dpy, selmon->sel->win, RevertToPointerRoot, CurrentTime);
  780. }
  781. void
  782. focusmon(const Arg *arg) {
  783. Monitor *m = NULL;
  784. if(!mons->next)
  785. return;
  786. if((m = dirtomon(arg->i)) == selmon)
  787. return;
  788. unfocus(selmon->sel);
  789. selmon = m;
  790. focus(NULL);
  791. }
  792. void
  793. focusstack(const Arg *arg) {
  794. Client *c = NULL, *i;
  795. if(!selmon->sel)
  796. return;
  797. if(arg->i > 0) {
  798. for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
  799. if(!c)
  800. for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
  801. }
  802. else {
  803. for(i = selmon->clients; i != selmon->sel; i = i->next)
  804. if(ISVISIBLE(i))
  805. c = i;
  806. if(!c)
  807. for(; i; i = i->next)
  808. if(ISVISIBLE(i))
  809. c = i;
  810. }
  811. if(c) {
  812. focus(c);
  813. restack(selmon);
  814. }
  815. }
  816. unsigned long
  817. getcolor(const char *colstr) {
  818. Colormap cmap = DefaultColormap(dpy, screen);
  819. XColor color;
  820. if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
  821. die("error, cannot allocate color '%s'\n", colstr);
  822. return color.pixel;
  823. }
  824. Bool
  825. getrootptr(int *x, int *y) {
  826. int di;
  827. unsigned int dui;
  828. Window dummy;
  829. return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
  830. }
  831. long
  832. getstate(Window w) {
  833. int format, status;
  834. long result = -1;
  835. unsigned char *p = NULL;
  836. unsigned long n, extra;
  837. Atom real;
  838. status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
  839. &real, &format, &n, &extra, (unsigned char **)&p);
  840. if(status != Success)
  841. return -1;
  842. if(n != 0)
  843. result = *p;
  844. XFree(p);
  845. return result;
  846. }
  847. Bool
  848. gettextprop(Window w, Atom atom, char *text, unsigned int size) {
  849. char **list = NULL;
  850. int n;
  851. XTextProperty name;
  852. if(!text || size == 0)
  853. return False;
  854. text[0] = '\0';
  855. XGetTextProperty(dpy, w, &name, atom);
  856. if(!name.nitems)
  857. return False;
  858. if(name.encoding == XA_STRING)
  859. strncpy(text, (char *)name.value, size - 1);
  860. else {
  861. if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
  862. strncpy(text, *list, size - 1);
  863. XFreeStringList(list);
  864. }
  865. }
  866. text[size - 1] = '\0';
  867. XFree(name.value);
  868. return True;
  869. }
  870. void
  871. grabbuttons(Client *c, Bool focused) {
  872. updatenumlockmask();
  873. {
  874. unsigned int i, j;
  875. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  876. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  877. if(focused) {
  878. for(i = 0; i < LENGTH(buttons); i++)
  879. if(buttons[i].click == ClkClientWin)
  880. for(j = 0; j < LENGTH(modifiers); j++)
  881. XGrabButton(dpy, buttons[i].button,
  882. buttons[i].mask | modifiers[j],
  883. c->win, False, BUTTONMASK,
  884. GrabModeAsync, GrabModeSync, None, None);
  885. }
  886. else
  887. XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
  888. BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
  889. }
  890. }
  891. void
  892. grabkeys(void) {
  893. updatenumlockmask();
  894. {
  895. unsigned int i, j;
  896. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  897. KeyCode code;
  898. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  899. for(i = 0; i < LENGTH(keys); i++) {
  900. if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
  901. for(j = 0; j < LENGTH(modifiers); j++)
  902. XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
  903. True, GrabModeAsync, GrabModeAsync);
  904. }
  905. }
  906. }
  907. void
  908. initfont(const char *fontstr) {
  909. char *def, **missing;
  910. int i, n;
  911. missing = NULL;
  912. dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
  913. if(missing) {
  914. while(n--)
  915. fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
  916. XFreeStringList(missing);
  917. }
  918. if(dc.font.set) {
  919. XFontSetExtents *font_extents;
  920. XFontStruct **xfonts;
  921. char **font_names;
  922. dc.font.ascent = dc.font.descent = 0;
  923. font_extents = XExtentsOfFontSet(dc.font.set);
  924. n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
  925. for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
  926. dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
  927. dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
  928. xfonts++;
  929. }
  930. }
  931. else {
  932. if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
  933. && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
  934. die("error, cannot load font: '%s'\n", fontstr);
  935. dc.font.ascent = dc.font.xfont->ascent;
  936. dc.font.descent = dc.font.xfont->descent;
  937. }
  938. dc.font.height = dc.font.ascent + dc.font.descent;
  939. }
  940. Bool
  941. isprotodel(Client *c) {
  942. int i, n;
  943. Atom *protocols;
  944. Bool ret = False;
  945. if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
  946. for(i = 0; !ret && i < n; i++)
  947. if(protocols[i] == wmatom[WMDelete])
  948. ret = True;
  949. XFree(protocols);
  950. }
  951. return ret;
  952. }
  953. #ifdef XINERAMA
  954. static Bool
  955. isuniquegeom(XineramaScreenInfo *unique, size_t len, XineramaScreenInfo *info) {
  956. unsigned int i;
  957. for(i = 0; i < len; i++)
  958. if(unique[i].x_org == info->x_org && unique[i].y_org == info->y_org
  959. && unique[i].width == info->width && unique[i].height == info->height)
  960. return False;
  961. return True;
  962. }
  963. #endif /* XINERAMA */
  964. void
  965. keypress(XEvent *e) {
  966. unsigned int i;
  967. KeySym keysym;
  968. XKeyEvent *ev;
  969. ev = &e->xkey;
  970. keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
  971. for(i = 0; i < LENGTH(keys); i++)
  972. if(keysym == keys[i].keysym
  973. && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
  974. && keys[i].func)
  975. keys[i].func(&(keys[i].arg));
  976. }
  977. void
  978. killclient(const Arg *arg) {
  979. XEvent ev;
  980. if(!selmon->sel)
  981. return;
  982. if(isprotodel(selmon->sel)) {
  983. ev.type = ClientMessage;
  984. ev.xclient.window = selmon->sel->win;
  985. ev.xclient.message_type = wmatom[WMProtocols];
  986. ev.xclient.format = 32;
  987. ev.xclient.data.l[0] = wmatom[WMDelete];
  988. ev.xclient.data.l[1] = CurrentTime;
  989. XSendEvent(dpy, selmon->sel->win, False, NoEventMask, &ev);
  990. }
  991. else {
  992. XGrabServer(dpy);
  993. XSetErrorHandler(xerrordummy);
  994. XSetCloseDownMode(dpy, DestroyAll);
  995. XKillClient(dpy, selmon->sel->win);
  996. XSync(dpy, False);
  997. XSetErrorHandler(xerror);
  998. XUngrabServer(dpy);
  999. }
  1000. }
  1001. void
  1002. manage(Window w, XWindowAttributes *wa) {
  1003. static Client cz;
  1004. Client *c, *t = NULL;
  1005. Window trans = None;
  1006. XWindowChanges wc;
  1007. if(!(c = malloc(sizeof(Client))))
  1008. die("fatal: could not malloc() %u bytes\n", sizeof(Client));
  1009. *c = cz;
  1010. c->win = w;
  1011. updatetitle(c);
  1012. if(XGetTransientForHint(dpy, w, &trans))
  1013. t = wintoclient(trans);
  1014. if(t) {
  1015. c->mon = t->mon;
  1016. c->tags = t->tags;
  1017. }
  1018. else {
  1019. c->mon = selmon;
  1020. applyrules(c);
  1021. }
  1022. /* geometry */
  1023. c->x = wa->x + c->mon->wx;
  1024. c->y = wa->y + c->mon->wy;
  1025. c->w = wa->width;
  1026. c->h = wa->height;
  1027. c->oldbw = wa->border_width;
  1028. if(c->w == c->mon->mw && c->h == c->mon->mh) {
  1029. c->x = c->mon->mx;
  1030. c->y = c->mon->my;
  1031. c->bw = 0;
  1032. }
  1033. else {
  1034. if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
  1035. c->x = c->mon->mx + c->mon->mw - WIDTH(c);
  1036. if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
  1037. c->y = c->mon->my + c->mon->mh - HEIGHT(c);
  1038. c->x = MAX(c->x, c->mon->mx);
  1039. /* only fix client y-offset, if the client center might cover the bar */
  1040. c->y = MAX(c->y, ((c->mon->by == 0) && (c->x + (c->w / 2) >= c->mon->wx)
  1041. && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
  1042. c->bw = borderpx;
  1043. }
  1044. wc.border_width = c->bw;
  1045. XConfigureWindow(dpy, w, CWBorderWidth, &wc);
  1046. XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
  1047. configure(c); /* propagates border_width, if size doesn't change */
  1048. updatesizehints(c);
  1049. XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
  1050. grabbuttons(c, False);
  1051. if(!c->isfloating)
  1052. c->isfloating = trans != None || c->isfixed;
  1053. if(c->isfloating)
  1054. XRaiseWindow(dpy, c->win);
  1055. attach(c);
  1056. attachstack(c);
  1057. XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
  1058. XMapWindow(dpy, c->win);
  1059. setclientstate(c, NormalState);
  1060. arrange(c->mon);
  1061. }
  1062. void
  1063. mappingnotify(XEvent *e) {
  1064. XMappingEvent *ev = &e->xmapping;
  1065. XRefreshKeyboardMapping(ev);
  1066. if(ev->request == MappingKeyboard)
  1067. grabkeys();
  1068. }
  1069. void
  1070. maprequest(XEvent *e) {
  1071. static XWindowAttributes wa;
  1072. XMapRequestEvent *ev = &e->xmaprequest;
  1073. if(!XGetWindowAttributes(dpy, ev->window, &wa))
  1074. return;
  1075. if(wa.override_redirect)
  1076. return;
  1077. if(!wintoclient(ev->window))
  1078. manage(ev->window, &wa);
  1079. }
  1080. void
  1081. monocle(Monitor *m) {
  1082. unsigned int n = 0;
  1083. Client *c;
  1084. for(c = m->clients; c; c = c->next)
  1085. if(ISVISIBLE(c))
  1086. n++;
  1087. if(n > 0) /* override layout symbol */
  1088. snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
  1089. for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
  1090. resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
  1091. }
  1092. void
  1093. movemouse(const Arg *arg) {
  1094. int x, y, ocx, ocy, nx, ny;
  1095. Client *c;
  1096. Monitor *m;
  1097. XEvent ev;
  1098. if(!(c = selmon->sel))
  1099. return;
  1100. restack(selmon);
  1101. ocx = c->x;
  1102. ocy = c->y;
  1103. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1104. None, cursor[CurMove], CurrentTime) != GrabSuccess)
  1105. return;
  1106. if(!getrootptr(&x, &y))
  1107. return;
  1108. do {
  1109. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1110. switch (ev.type) {
  1111. case ConfigureRequest:
  1112. case Expose:
  1113. case MapRequest:
  1114. handler[ev.type](&ev);
  1115. break;
  1116. case MotionNotify:
  1117. nx = ocx + (ev.xmotion.x - x);
  1118. ny = ocy + (ev.xmotion.y - y);
  1119. if(snap && nx >= selmon->wx && nx <= selmon->wx + selmon->ww
  1120. && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
  1121. if(abs(selmon->wx - nx) < snap)
  1122. nx = selmon->wx;
  1123. else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
  1124. nx = selmon->wx + selmon->ww - WIDTH(c);
  1125. if(abs(selmon->wy - ny) < snap)
  1126. ny = selmon->wy;
  1127. else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
  1128. ny = selmon->wy + selmon->wh - HEIGHT(c);
  1129. if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1130. && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
  1131. togglefloating(NULL);
  1132. }
  1133. if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1134. resize(c, nx, ny, c->w, c->h, True);
  1135. break;
  1136. }
  1137. } while(ev.type != ButtonRelease);
  1138. XUngrabPointer(dpy, CurrentTime);
  1139. if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
  1140. sendmon(c, m);
  1141. selmon = m;
  1142. focus(NULL);
  1143. }
  1144. }
  1145. Client *
  1146. nexttiled(Client *c) {
  1147. for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
  1148. return c;
  1149. }
  1150. Monitor *
  1151. ptrtomon(int x, int y) {
  1152. Monitor *m;
  1153. for(m = mons; m; m = m->next)
  1154. if(INRECT(x, y, m->wx, m->wy, m->ww, m->wh))
  1155. return m;
  1156. return selmon;
  1157. }
  1158. void
  1159. propertynotify(XEvent *e) {
  1160. Client *c;
  1161. Window trans;
  1162. XPropertyEvent *ev = &e->xproperty;
  1163. if((ev->window == root) && (ev->atom == XA_WM_NAME))
  1164. updatestatus();
  1165. else if(ev->state == PropertyDelete)
  1166. return; /* ignore */
  1167. else if((c = wintoclient(ev->window))) {
  1168. switch (ev->atom) {
  1169. default: break;
  1170. case XA_WM_TRANSIENT_FOR:
  1171. XGetTransientForHint(dpy, c->win, &trans);
  1172. if(!c->isfloating && (c->isfloating = (wintoclient(trans) != NULL)))
  1173. arrange(c->mon);
  1174. break;
  1175. case XA_WM_NORMAL_HINTS:
  1176. updatesizehints(c);
  1177. break;
  1178. case XA_WM_HINTS:
  1179. updatewmhints(c);
  1180. drawbars();
  1181. break;
  1182. }
  1183. if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
  1184. updatetitle(c);
  1185. if(c == c->mon->sel)
  1186. drawbar(c->mon);
  1187. }
  1188. }
  1189. }
  1190. void
  1191. clientmessage(XEvent *e) {
  1192. XClientMessageEvent *cme = &e->xclient;
  1193. if(cme->message_type == netatom[NetWMState] && cme->data.l[1] == netatom[NetWMFullscreen]) {
  1194. if(cme->data.l[0])
  1195. XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
  1196. PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
  1197. else
  1198. XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
  1199. PropModeReplace, (unsigned char*)0, 0);
  1200. }
  1201. }
  1202. void
  1203. quit(const Arg *arg) {
  1204. running = False;
  1205. }
  1206. void
  1207. resize(Client *c, int x, int y, int w, int h, Bool interact) {
  1208. XWindowChanges wc;
  1209. if(applysizehints(c, &x, &y, &w, &h, interact)) {
  1210. c->x = wc.x = x;
  1211. c->y = wc.y = y;
  1212. c->w = wc.width = w;
  1213. c->h = wc.height = h;
  1214. wc.border_width = c->bw;
  1215. XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
  1216. configure(c);
  1217. XSync(dpy, False);
  1218. }
  1219. }
  1220. void
  1221. resizemouse(const Arg *arg) {
  1222. int ocx, ocy;
  1223. int nw, nh;
  1224. Client *c;
  1225. Monitor *m;
  1226. XEvent ev;
  1227. if(!(c = selmon->sel))
  1228. return;
  1229. restack(selmon);
  1230. ocx = c->x;
  1231. ocy = c->y;
  1232. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1233. None, cursor[CurResize], CurrentTime) != GrabSuccess)
  1234. return;
  1235. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1236. do {
  1237. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1238. switch(ev.type) {
  1239. case ConfigureRequest:
  1240. case Expose:
  1241. case MapRequest:
  1242. handler[ev.type](&ev);
  1243. break;
  1244. case MotionNotify:
  1245. nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
  1246. nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
  1247. if(snap && nw >= selmon->wx && nw <= selmon->wx + selmon->ww
  1248. && nh >= selmon->wy && nh <= selmon->wy + selmon->wh)
  1249. {
  1250. if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1251. && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
  1252. togglefloating(NULL);
  1253. }
  1254. if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1255. resize(c, c->x, c->y, nw, nh, True);
  1256. break;
  1257. }
  1258. } while(ev.type != ButtonRelease);
  1259. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1260. XUngrabPointer(dpy, CurrentTime);
  1261. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1262. if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
  1263. sendmon(c, m);
  1264. selmon = m;
  1265. focus(NULL);
  1266. }
  1267. }
  1268. void
  1269. restack(Monitor *m) {
  1270. Client *c;
  1271. XEvent ev;
  1272. XWindowChanges wc;
  1273. drawbar(m);
  1274. if(!m->sel)
  1275. return;
  1276. if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
  1277. XRaiseWindow(dpy, m->sel->win);
  1278. if(m->lt[m->sellt]->arrange) {
  1279. wc.stack_mode = Below;
  1280. wc.sibling = m->barwin;
  1281. for(c = m->stack; c; c = c->snext)
  1282. if(!c->isfloating && ISVISIBLE(c)) {
  1283. XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
  1284. wc.sibling = c->win;
  1285. }
  1286. }
  1287. XSync(dpy, False);
  1288. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1289. }
  1290. void
  1291. run(void) {
  1292. XEvent ev;
  1293. /* main event loop */
  1294. XSync(dpy, False);
  1295. while(running && !XNextEvent(dpy, &ev)) {
  1296. if(handler[ev.type])
  1297. handler[ev.type](&ev); /* call handler */
  1298. }
  1299. }
  1300. void
  1301. scan(void) {
  1302. unsigned int i, num;
  1303. Window d1, d2, *wins = NULL;
  1304. XWindowAttributes wa;
  1305. if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  1306. for(i = 0; i < num; i++) {
  1307. if(!XGetWindowAttributes(dpy, wins[i], &wa)
  1308. || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  1309. continue;
  1310. if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
  1311. manage(wins[i], &wa);
  1312. }
  1313. for(i = 0; i < num; i++) { /* now the transients */
  1314. if(!XGetWindowAttributes(dpy, wins[i], &wa))
  1315. continue;
  1316. if(XGetTransientForHint(dpy, wins[i], &d1)
  1317. && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
  1318. manage(wins[i], &wa);
  1319. }
  1320. if(wins)
  1321. XFree(wins);
  1322. }
  1323. }
  1324. void
  1325. sendmon(Client *c, Monitor *m) {
  1326. if(c->mon == m)
  1327. return;
  1328. unfocus(c);
  1329. detach(c);
  1330. detachstack(c);
  1331. c->mon = m;
  1332. c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
  1333. attach(c);
  1334. attachstack(c);
  1335. focus(NULL);
  1336. arrange(NULL);
  1337. }
  1338. void
  1339. setclientstate(Client *c, long state) {
  1340. long data[] = { state, None };
  1341. XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
  1342. PropModeReplace, (unsigned char *)data, 2);
  1343. }
  1344. void
  1345. setlayout(const Arg *arg) {
  1346. if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
  1347. selmon->sellt ^= 1;
  1348. if(arg && arg->v)
  1349. selmon->lt[selmon->sellt] = (Layout *)arg->v;
  1350. strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
  1351. if(selmon->sel)
  1352. arrange(selmon);
  1353. else
  1354. drawbar(selmon);
  1355. }
  1356. /* arg > 1.0 will set mfact absolutly */
  1357. void
  1358. setmfact(const Arg *arg) {
  1359. float f;
  1360. if(!arg || !selmon->lt[selmon->sellt]->arrange)
  1361. return;
  1362. f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
  1363. if(f < 0.1 || f > 0.9)
  1364. return;
  1365. selmon->mfact = f;
  1366. arrange(selmon);
  1367. }
  1368. void
  1369. setup(void) {
  1370. XSetWindowAttributes wa;
  1371. /* clean up any zombies immediately */
  1372. sigchld(0);
  1373. /* init screen */
  1374. screen = DefaultScreen(dpy);
  1375. root = RootWindow(dpy, screen);
  1376. initfont(font);
  1377. sw = DisplayWidth(dpy, screen);
  1378. sh = DisplayHeight(dpy, screen);
  1379. bh = dc.h = dc.font.height + 2;
  1380. updategeom();
  1381. /* init atoms */
  1382. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  1383. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  1384. wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
  1385. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  1386. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  1387. netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
  1388. netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
  1389. /* init cursors */
  1390. cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
  1391. cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
  1392. cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
  1393. /* init appearance */
  1394. dc.norm[ColBorder] = getcolor(normbordercolor);
  1395. dc.norm[ColBG] = getcolor(normbgcolor);
  1396. dc.norm[ColFG] = getcolor(normfgcolor);
  1397. dc.sel[ColBorder] = getcolor(selbordercolor);
  1398. dc.sel[ColBG] = getcolor(selbgcolor);
  1399. dc.sel[ColFG] = getcolor(selfgcolor);
  1400. dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
  1401. dc.gc = XCreateGC(dpy, root, 0, NULL);
  1402. XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
  1403. if(!dc.font.set)
  1404. XSetFont(dpy, dc.gc, dc.font.xfont->fid);
  1405. /* init bars */
  1406. updatebars();
  1407. updatestatus();
  1408. /* EWMH support per view */
  1409. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  1410. PropModeReplace, (unsigned char *) netatom, NetLast);
  1411. /* select for events */
  1412. wa.cursor = cursor[CurNormal];
  1413. wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
  1414. |EnterWindowMask|LeaveWindowMask|StructureNotifyMask
  1415. |PropertyChangeMask;
  1416. XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
  1417. XSelectInput(dpy, root, wa.event_mask);
  1418. grabkeys();
  1419. }
  1420. void
  1421. showhide(Client *c) {
  1422. if(!c)
  1423. return;
  1424. if(ISVISIBLE(c)) { /* show clients top down */
  1425. XMoveWindow(dpy, c->win, c->x, c->y);
  1426. if(!c->mon->lt[c->mon->sellt]->arrange || c->isfloating)
  1427. resize(c, c->x, c->y, c->w, c->h, False);
  1428. showhide(c->snext);
  1429. }
  1430. else { /* hide clients bottom up */
  1431. showhide(c->snext);
  1432. XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  1433. }
  1434. }
  1435. void
  1436. sigchld(int unused) {
  1437. if(signal(SIGCHLD, sigchld) == SIG_ERR)
  1438. die("Can't install SIGCHLD handler");
  1439. while(0 < waitpid(-1, NULL, WNOHANG));
  1440. }
  1441. void
  1442. spawn(const Arg *arg) {
  1443. if(fork() == 0) {
  1444. if(dpy)
  1445. close(ConnectionNumber(dpy));
  1446. setsid();
  1447. execvp(((char **)arg->v)[0], (char **)arg->v);
  1448. fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
  1449. perror(" failed");
  1450. exit(0);
  1451. }
  1452. }
  1453. void
  1454. tag(const Arg *arg) {
  1455. if(selmon->sel && arg->ui & TAGMASK) {
  1456. selmon->sel->tags = arg->ui & TAGMASK;
  1457. arrange(selmon);
  1458. }
  1459. }
  1460. void
  1461. tagmon(const Arg *arg) {
  1462. if(!selmon->sel || !mons->next)
  1463. return;
  1464. sendmon(selmon->sel, dirtomon(arg->i));
  1465. }
  1466. int
  1467. textnw(const char *text, unsigned int len) {
  1468. XRectangle r;
  1469. if(dc.font.set) {
  1470. XmbTextExtents(dc.font.set, text, len, NULL, &r);
  1471. return r.width;
  1472. }
  1473. return XTextWidth(dc.font.xfont, text, len);
  1474. }
  1475. void
  1476. tile(Monitor *m) {
  1477. int x, y, h, w, mw;
  1478. unsigned int i, n;
  1479. Client *c;
  1480. for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
  1481. if(n == 0)
  1482. return;
  1483. /* master */
  1484. c = nexttiled(m->clients);
  1485. mw = m->mfact * m->ww;
  1486. resize(c, m->wx, m->wy, (n == 1 ? m->ww : mw) - 2 * c->bw, m->wh - 2 * c->bw, False);
  1487. if(--n == 0)
  1488. return;
  1489. /* tile stack */
  1490. x = (m->wx + mw > c->x + c->w) ? c->x + c->w + 2 * c->bw : m->wx + mw;
  1491. y = m->wy;
  1492. w = (m->wx + mw > c->x + c->w) ? m->wx + m->ww - x : m->ww - mw;
  1493. h = m->wh / n;
  1494. if(h < bh)
  1495. h = m->wh;
  1496. for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
  1497. resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
  1498. ? m->wy + m->wh - y - 2 * c->bw : h - 2 * c->bw), False);
  1499. if(h != m->wh)
  1500. y = c->y + HEIGHT(c);
  1501. }
  1502. }
  1503. void
  1504. togglebar(const Arg *arg) {
  1505. selmon->showbar = !selmon->showbar;
  1506. updatebarpos(selmon);
  1507. XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
  1508. arrange(selmon);
  1509. }
  1510. void
  1511. togglefloating(const Arg *arg) {
  1512. if(!selmon->sel)
  1513. return;
  1514. selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
  1515. if(selmon->sel->isfloating)
  1516. resize(selmon->sel, selmon->sel->x, selmon->sel->y,
  1517. selmon->sel->w, selmon->sel->h, False);
  1518. arrange(selmon);
  1519. }
  1520. void
  1521. toggletag(const Arg *arg) {
  1522. unsigned int newtags;
  1523. if(!selmon->sel)
  1524. return;
  1525. newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
  1526. if(newtags) {
  1527. selmon->sel->tags = newtags;
  1528. arrange(selmon);
  1529. }
  1530. }
  1531. void
  1532. toggleview(const Arg *arg) {
  1533. unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
  1534. if(newtagset) {
  1535. selmon->tagset[selmon->seltags] = newtagset;
  1536. arrange(selmon);
  1537. }
  1538. }
  1539. void
  1540. unfocus(Client *c) {
  1541. if(!c)
  1542. return;
  1543. grabbuttons(c, False);
  1544. XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
  1545. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  1546. }
  1547. void
  1548. unmanage(Client *c, Bool destroyed) {
  1549. Monitor *m = c->mon;
  1550. XWindowChanges wc;
  1551. /* The server grab construct avoids race conditions. */
  1552. detach(c);
  1553. detachstack(c);
  1554. if(!destroyed) {
  1555. wc.border_width = c->oldbw;
  1556. XGrabServer(dpy);
  1557. XSetErrorHandler(xerrordummy);
  1558. XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
  1559. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  1560. setclientstate(c, WithdrawnState);
  1561. XSync(dpy, False);
  1562. XSetErrorHandler(xerror);
  1563. XUngrabServer(dpy);
  1564. }
  1565. free(c);
  1566. focus(NULL);
  1567. arrange(m);
  1568. }
  1569. void
  1570. unmapnotify(XEvent *e) {
  1571. Client *c;
  1572. XUnmapEvent *ev = &e->xunmap;
  1573. if((c = wintoclient(ev->window)))
  1574. unmanage(c, False);
  1575. }
  1576. void
  1577. updatebars(void) {
  1578. Monitor *m;
  1579. XSetWindowAttributes wa;
  1580. wa.override_redirect = True;
  1581. wa.background_pixmap = ParentRelative;
  1582. wa.event_mask = ButtonPressMask|ExposureMask;
  1583. for(m = mons; m; m = m->next) {
  1584. m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
  1585. CopyFromParent, DefaultVisual(dpy, screen),
  1586. CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
  1587. XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
  1588. XMapRaised(dpy, m->barwin);
  1589. }
  1590. }
  1591. void
  1592. updatebarpos(Monitor *m) {
  1593. m->wy = m->my;
  1594. m->wh = m->mh;
  1595. if(m->showbar) {
  1596. m->wh -= bh;
  1597. m->by = m->topbar ? m->wy : m->wy + m->wh;
  1598. m->wy = m->topbar ? m->wy + bh : m->wy;
  1599. }
  1600. else
  1601. m->by = -bh;
  1602. }
  1603. Bool
  1604. updategeom(void) {
  1605. Bool dirty = False;
  1606. #ifdef XINERAMA
  1607. if(XineramaIsActive(dpy)) {
  1608. int i, j, n, nn;
  1609. Client *c;
  1610. Monitor *m;
  1611. XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
  1612. XineramaScreenInfo *unique = NULL;
  1613. info = XineramaQueryScreens(dpy, &nn);
  1614. for(n = 0, m = mons; m; m = m->next, n++);
  1615. /* only consider unique geometries as separate screens */
  1616. if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScreenInfo) * nn)))
  1617. die("fatal: could not malloc() %u bytes\n", sizeof(XineramaScreenInfo) * nn);
  1618. for(i = 0, j = 0; i < nn; i++)
  1619. if(isuniquegeom(unique, j, &info[i]))
  1620. memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
  1621. XFree(info);
  1622. nn = j;
  1623. if(n <= nn) {
  1624. for(i = 0; i < (nn - n); i++) { /* new monitors available */
  1625. for(m = mons; m && m->next; m = m->next);
  1626. if(m)
  1627. m->next = createmon();
  1628. else
  1629. mons = createmon();
  1630. }
  1631. for(i = 0, m = mons; i < nn && m; m = m->next, i++)
  1632. if(i >= n
  1633. || (unique[i].x_org != m->mx || unique[i].y_org != m->my
  1634. || unique[i].width != m->mw || unique[i].height != m->mh))
  1635. {
  1636. dirty = True;
  1637. m->num = i;
  1638. m->mx = m->wx = unique[i].x_org;
  1639. m->my = m->wy = unique[i].y_org;
  1640. m->mw = m->ww = unique[i].width;
  1641. m->mh = m->wh = unique[i].height;
  1642. updatebarpos(m);
  1643. }
  1644. }
  1645. else { /* less monitors available nn < n */
  1646. for(i = nn; i < n; i++) {
  1647. for(m = mons; m && m->next; m = m->next);
  1648. while(m->clients) {
  1649. dirty = True;
  1650. c = m->clients;
  1651. m->clients = c->next;
  1652. detachstack(c);
  1653. c->mon = mons;
  1654. attach(c);
  1655. attachstack(c);
  1656. }
  1657. if(m == selmon)
  1658. selmon = mons;
  1659. cleanupmon(m);
  1660. }
  1661. }
  1662. free(unique);
  1663. }
  1664. else
  1665. #endif /* XINERAMA */
  1666. /* default monitor setup */
  1667. {
  1668. if(!mons)
  1669. mons = createmon();
  1670. if(mons->mw != sw || mons->mh != sh) {
  1671. dirty = True;
  1672. mons->mw = mons->ww = sw;
  1673. mons->mh = mons->wh = sh;
  1674. updatebarpos(mons);
  1675. }
  1676. }
  1677. if(dirty) {
  1678. selmon = mons;
  1679. selmon = wintomon(root);
  1680. }
  1681. return dirty;
  1682. }
  1683. void
  1684. updatenumlockmask(void) {
  1685. unsigned int i, j;
  1686. XModifierKeymap *modmap;
  1687. numlockmask = 0;
  1688. modmap = XGetModifierMapping(dpy);
  1689. for(i = 0; i < 8; i++)
  1690. for(j = 0; j < modmap->max_keypermod; j++)
  1691. if(modmap->modifiermap[i * modmap->max_keypermod + j]
  1692. == XKeysymToKeycode(dpy, XK_Num_Lock))
  1693. numlockmask = (1 << i);
  1694. XFreeModifiermap(modmap);
  1695. }
  1696. void
  1697. updatesizehints(Client *c) {
  1698. long msize;
  1699. XSizeHints size;
  1700. if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
  1701. /* size is uninitialized, ensure that size.flags aren't used */
  1702. size.flags = PSize;
  1703. if(size.flags & PBaseSize) {
  1704. c->basew = size.base_width;
  1705. c->baseh = size.base_height;
  1706. }
  1707. else if(size.flags & PMinSize) {
  1708. c->basew = size.min_width;
  1709. c->baseh = size.min_height;
  1710. }
  1711. else
  1712. c->basew = c->baseh = 0;
  1713. if(size.flags & PResizeInc) {
  1714. c->incw = size.width_inc;
  1715. c->inch = size.height_inc;
  1716. }
  1717. else
  1718. c->incw = c->inch = 0;
  1719. if(size.flags & PMaxSize) {
  1720. c->maxw = size.max_width;
  1721. c->maxh = size.max_height;
  1722. }
  1723. else
  1724. c->maxw = c->maxh = 0;
  1725. if(size.flags & PMinSize) {
  1726. c->minw = size.min_width;
  1727. c->minh = size.min_height;
  1728. }
  1729. else if(size.flags & PBaseSize) {
  1730. c->minw = size.base_width;
  1731. c->minh = size.base_height;
  1732. }
  1733. else
  1734. c->minw = c->minh = 0;
  1735. if(size.flags & PAspect) {
  1736. c->mina = (float)size.min_aspect.y / size.min_aspect.x;
  1737. c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
  1738. }
  1739. else
  1740. c->maxa = c->mina = 0.0;
  1741. c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
  1742. && c->maxw == c->minw && c->maxh == c->minh);
  1743. }
  1744. void
  1745. updatetitle(Client *c) {
  1746. if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
  1747. gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
  1748. if(c->name[0] == '\0') /* hack to mark broken clients */
  1749. strcpy(c->name, broken);
  1750. }
  1751. void
  1752. updatestatus(void) {
  1753. if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
  1754. strcpy(stext, "dwm-"VERSION);
  1755. drawbar(selmon);
  1756. }
  1757. void
  1758. updatewmhints(Client *c) {
  1759. XWMHints *wmh;
  1760. if((wmh = XGetWMHints(dpy, c->win))) {
  1761. if(c == selmon->sel && wmh->flags & XUrgencyHint) {
  1762. wmh->flags &= ~XUrgencyHint;
  1763. XSetWMHints(dpy, c->win, wmh);
  1764. }
  1765. else
  1766. c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
  1767. XFree(wmh);
  1768. }
  1769. }
  1770. void
  1771. view(const Arg *arg) {
  1772. if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
  1773. return;
  1774. selmon->seltags ^= 1; /* toggle sel tagset */
  1775. if(arg->ui & TAGMASK)
  1776. selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
  1777. arrange(selmon);
  1778. }
  1779. Client *
  1780. wintoclient(Window w) {
  1781. Client *c;
  1782. Monitor *m;
  1783. for(m = mons; m; m = m->next)
  1784. for(c = m->clients; c; c = c->next)
  1785. if(c->win == w)
  1786. return c;
  1787. return NULL;
  1788. }
  1789. Monitor *
  1790. wintomon(Window w) {
  1791. int x, y;
  1792. Client *c;
  1793. Monitor *m;
  1794. if(w == root && getrootptr(&x, &y))
  1795. return ptrtomon(x, y);
  1796. for(m = mons; m; m = m->next)
  1797. if(w == m->barwin)
  1798. return m;
  1799. if((c = wintoclient(w)))
  1800. return c->mon;
  1801. return selmon;
  1802. }
  1803. /* There's no way to check accesses to destroyed windows, thus those cases are
  1804. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  1805. * default error handler, which may call exit. */
  1806. int
  1807. xerror(Display *dpy, XErrorEvent *ee) {
  1808. if(ee->error_code == BadWindow
  1809. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  1810. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  1811. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  1812. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  1813. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  1814. || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
  1815. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
  1816. || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
  1817. return 0;
  1818. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  1819. ee->request_code, ee->error_code);
  1820. return xerrorxlib(dpy, ee); /* may call exit */
  1821. }
  1822. int
  1823. xerrordummy(Display *dpy, XErrorEvent *ee) {
  1824. return 0;
  1825. }
  1826. /* Startup Error handler to check if another window manager
  1827. * is already running. */
  1828. int
  1829. xerrorstart(Display *dpy, XErrorEvent *ee) {
  1830. otherwm = True;
  1831. return -1;
  1832. }
  1833. void
  1834. zoom(const Arg *arg) {
  1835. Client *c = selmon->sel;
  1836. if(!selmon->lt[selmon->sellt]->arrange
  1837. || selmon->lt[selmon->sellt]->arrange == monocle
  1838. || (selmon->sel && selmon->sel->isfloating))
  1839. return;
  1840. if(c == nexttiled(selmon->clients))
  1841. if(!c || !(c = nexttiled(c->next)))
  1842. return;
  1843. detach(c);
  1844. attach(c);
  1845. focus(c);
  1846. arrange(c->mon);
  1847. }
  1848. int
  1849. main(int argc, char *argv[]) {
  1850. if(argc == 2 && !strcmp("-v", argv[1]))
  1851. die("dwm-"VERSION", © 2006-2010 dwm engineers, see LICENSE for details\n");
  1852. else if(argc != 1)
  1853. die("usage: dwm [-v]\n");
  1854. if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
  1855. fputs("warning: no locale support\n", stderr);
  1856. if(!(dpy = XOpenDisplay(NULL)))
  1857. die("dwm: cannot open display\n");
  1858. checkotherwm();
  1859. setup();
  1860. scan();
  1861. run();
  1862. cleanup();
  1863. XCloseDisplay(dpy);
  1864. return 0;
  1865. }