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 oldx, oldy, oldw, oldh;
  83. int basew, baseh, incw, inch, maxw, maxh, minw, minh;
  84. int bw, oldbw;
  85. unsigned int tags;
  86. Bool isfixed, isfloating, isurgent, oldstate;
  87. Client *next;
  88. Client *snext;
  89. Monitor *mon;
  90. Window win;
  91. };
  92. typedef struct {
  93. int x, y, w, h;
  94. unsigned long norm[ColLast];
  95. unsigned long sel[ColLast];
  96. Drawable drawable;
  97. GC gc;
  98. struct {
  99. int ascent;
  100. int descent;
  101. int height;
  102. XFontSet set;
  103. XFontStruct *xfont;
  104. } font;
  105. } DC; /* draw context */
  106. typedef struct {
  107. unsigned int mod;
  108. KeySym keysym;
  109. void (*func)(const Arg *);
  110. const Arg arg;
  111. } Key;
  112. typedef struct {
  113. const char *symbol;
  114. void (*arrange)(Monitor *);
  115. } Layout;
  116. struct Monitor {
  117. char ltsymbol[16];
  118. float mfact;
  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. Bool showbar;
  127. Bool topbar;
  128. Client *clients;
  129. Client *sel;
  130. Client *stack;
  131. Monitor *next;
  132. Window barwin;
  133. const Layout *lt[2];
  134. };
  135. typedef struct {
  136. const char *class;
  137. const char *instance;
  138. const char *title;
  139. unsigned int tags;
  140. Bool isfloating;
  141. int monitor;
  142. } Rule;
  143. /* function declarations */
  144. static void applyrules(Client *c);
  145. static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
  146. static void arrange(Monitor *m);
  147. static void arrangemon(Monitor *m);
  148. static void attach(Client *c);
  149. static void attachstack(Client *c);
  150. static void buttonpress(XEvent *e);
  151. static void checkotherwm(void);
  152. static void cleanup(void);
  153. static void cleanupmon(Monitor *mon);
  154. static void clearurgent(Client *c);
  155. static void clientmessage(XEvent *e);
  156. static void configure(Client *c);
  157. static void configurenotify(XEvent *e);
  158. static void configurerequest(XEvent *e);
  159. static Monitor *createmon(void);
  160. static void destroynotify(XEvent *e);
  161. static void detach(Client *c);
  162. static void detachstack(Client *c);
  163. static void die(const char *errstr, ...);
  164. static Monitor *dirtomon(int dir);
  165. static void drawbar(Monitor *m);
  166. static void drawbars(void);
  167. static void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
  168. static void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
  169. static void enternotify(XEvent *e);
  170. static void expose(XEvent *e);
  171. static void focus(Client *c);
  172. static void focusin(XEvent *e);
  173. static void focusmon(const Arg *arg);
  174. static void focusstack(const Arg *arg);
  175. static unsigned long getcolor(const char *colstr);
  176. static Bool getrootptr(int *x, int *y);
  177. static long getstate(Window w);
  178. static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
  179. static void grabbuttons(Client *c, Bool focused);
  180. static void grabkeys(void);
  181. static void initfont(const char *fontstr);
  182. static Bool isprotodel(Client *c);
  183. static void keypress(XEvent *e);
  184. static void killclient(const Arg *arg);
  185. static void manage(Window w, XWindowAttributes *wa);
  186. static void mappingnotify(XEvent *e);
  187. static void maprequest(XEvent *e);
  188. static void monocle(Monitor *m);
  189. static void movemouse(const Arg *arg);
  190. static Client *nexttiled(Client *c);
  191. static Monitor *ptrtomon(int x, int y);
  192. static void propertynotify(XEvent *e);
  193. static void quit(const Arg *arg);
  194. static void resize(Client *c, int x, int y, int w, int h, Bool 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 void sendmon(Client *c, Monitor *m);
  201. static void setclientstate(Client *c, long state);
  202. static void setlayout(const Arg *arg);
  203. static void setmfact(const Arg *arg);
  204. static void setup(void);
  205. static void showhide(Client *c);
  206. static void sigchld(int unused);
  207. static void spawn(const Arg *arg);
  208. static void tag(const Arg *arg);
  209. static void tagmon(const Arg *arg);
  210. static int textnw(const char *text, unsigned int len);
  211. static void tile(Monitor *);
  212. static void togglebar(const Arg *arg);
  213. static void togglefloating(const Arg *arg);
  214. static void toggletag(const Arg *arg);
  215. static void toggleview(const Arg *arg);
  216. static void unfocus(Client *c, Bool setfocus);
  217. static void unmanage(Client *c, Bool destroyed);
  218. static void unmapnotify(XEvent *e);
  219. static Bool updategeom(void);
  220. static void updatebarpos(Monitor *m);
  221. static void updatebars(void);
  222. static void updatenumlockmask(void);
  223. static void updatesizehints(Client *c);
  224. static void updatestatus(void);
  225. static void updatetitle(Client *c);
  226. static void updatewmhints(Client *c);
  227. static void view(const Arg *arg);
  228. static Client *wintoclient(Window w);
  229. static Monitor *wintomon(Window w);
  230. static int xerror(Display *dpy, XErrorEvent *ee);
  231. static int xerrordummy(Display *dpy, XErrorEvent *ee);
  232. static int xerrorstart(Display *dpy, XErrorEvent *ee);
  233. static void zoom(const Arg *arg);
  234. /* variables */
  235. static const char broken[] = "broken";
  236. static char stext[256];
  237. static int screen;
  238. static int sw, sh; /* X display screen geometry width, height */
  239. static int bh, blw = 0; /* bar geometry */
  240. static int (*xerrorxlib)(Display *, XErrorEvent *);
  241. static unsigned int numlockmask = 0;
  242. static void (*handler[LASTEvent]) (XEvent *) = {
  243. [ButtonPress] = buttonpress,
  244. [ClientMessage] = clientmessage,
  245. [ConfigureRequest] = configurerequest,
  246. [ConfigureNotify] = configurenotify,
  247. [DestroyNotify] = destroynotify,
  248. [EnterNotify] = enternotify,
  249. [Expose] = expose,
  250. [FocusIn] = focusin,
  251. [KeyPress] = keypress,
  252. [MappingNotify] = mappingnotify,
  253. [MapRequest] = maprequest,
  254. [PropertyNotify] = propertynotify,
  255. [UnmapNotify] = unmapnotify
  256. };
  257. static Atom wmatom[WMLast], netatom[NetLast];
  258. static Bool otherwm;
  259. static Bool running = True;
  260. static Cursor cursor[CurLast];
  261. static Display *dpy;
  262. static DC dc;
  263. static Monitor *mons = NULL, *selmon = NULL;
  264. static Window root;
  265. /* configuration, allows nested code to access above variables */
  266. #include "config.h"
  267. /* compile-time check if all tags fit into an unsigned int bit array. */
  268. struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
  269. /* function implementations */
  270. void
  271. applyrules(Client *c) {
  272. const char *class, *instance;
  273. unsigned int i;
  274. const Rule *r;
  275. Monitor *m;
  276. XClassHint ch = { 0 };
  277. /* rule matching */
  278. c->isfloating = c->tags = 0;
  279. if(XGetClassHint(dpy, c->win, &ch)) {
  280. class = ch.res_class ? ch.res_class : broken;
  281. instance = ch.res_name ? ch.res_name : broken;
  282. for(i = 0; i < LENGTH(rules); i++) {
  283. r = &rules[i];
  284. if((!r->title || strstr(c->name, r->title))
  285. && (!r->class || strstr(class, r->class))
  286. && (!r->instance || strstr(instance, r->instance)))
  287. {
  288. c->isfloating = r->isfloating;
  289. c->tags |= r->tags;
  290. for(m = mons; m && m->num != r->monitor; m = m->next);
  291. if(m)
  292. c->mon = m;
  293. }
  294. }
  295. if(ch.res_class)
  296. XFree(ch.res_class);
  297. if(ch.res_name)
  298. XFree(ch.res_name);
  299. }
  300. c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
  301. }
  302. Bool
  303. applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
  304. Bool baseismin;
  305. Monitor *m = c->mon;
  306. /* set minimum possible */
  307. *w = MAX(1, *w);
  308. *h = MAX(1, *h);
  309. if(interact) {
  310. if(*x > sw)
  311. *x = sw - WIDTH(c);
  312. if(*y > sh)
  313. *y = sh - HEIGHT(c);
  314. if(*x + *w + 2 * c->bw < 0)
  315. *x = 0;
  316. if(*y + *h + 2 * c->bw < 0)
  317. *y = 0;
  318. }
  319. else {
  320. if(*x > m->mx + m->mw)
  321. *x = m->mx + m->mw - WIDTH(c);
  322. if(*y > m->my + m->mh)
  323. *y = m->my + m->mh - HEIGHT(c);
  324. if(*x + *w + 2 * c->bw < m->mx)
  325. *x = m->mx;
  326. if(*y + *h + 2 * c->bw < m->my)
  327. *y = m->my;
  328. }
  329. if(*h < bh)
  330. *h = bh;
  331. if(*w < bh)
  332. *w = bh;
  333. if(resizehints || c->isfloating) {
  334. /* see last two sentences in ICCCM 4.1.2.3 */
  335. baseismin = c->basew == c->minw && c->baseh == c->minh;
  336. if(!baseismin) { /* temporarily remove base dimensions */
  337. *w -= c->basew;
  338. *h -= c->baseh;
  339. }
  340. /* adjust for aspect limits */
  341. if(c->mina > 0 && c->maxa > 0) {
  342. if(c->maxa < (float)*w / *h)
  343. *w = *h * c->maxa + 0.5;
  344. else if(c->mina < (float)*h / *w)
  345. *h = *w * c->mina + 0.5;
  346. }
  347. if(baseismin) { /* increment calculation requires this */
  348. *w -= c->basew;
  349. *h -= c->baseh;
  350. }
  351. /* adjust for increment value */
  352. if(c->incw)
  353. *w -= *w % c->incw;
  354. if(c->inch)
  355. *h -= *h % c->inch;
  356. /* restore base dimensions */
  357. *w += c->basew;
  358. *h += c->baseh;
  359. *w = MAX(*w, c->minw);
  360. *h = MAX(*h, c->minh);
  361. if(c->maxw)
  362. *w = MIN(*w, c->maxw);
  363. if(c->maxh)
  364. *h = MIN(*h, c->maxh);
  365. }
  366. return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
  367. }
  368. void
  369. arrange(Monitor *m) {
  370. if(m)
  371. showhide(m->stack);
  372. else for(m = mons; m; m = m->next)
  373. showhide(m->stack);
  374. focus(NULL);
  375. if(m)
  376. arrangemon(m);
  377. else for(m = mons; m; m = m->next)
  378. arrangemon(m);
  379. }
  380. void
  381. arrangemon(Monitor *m) {
  382. strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
  383. if(m->lt[m->sellt]->arrange)
  384. m->lt[m->sellt]->arrange(m);
  385. restack(m);
  386. }
  387. void
  388. attach(Client *c) {
  389. c->next = c->mon->clients;
  390. c->mon->clients = c;
  391. }
  392. void
  393. attachstack(Client *c) {
  394. c->snext = c->mon->stack;
  395. c->mon->stack = c;
  396. }
  397. void
  398. buttonpress(XEvent *e) {
  399. unsigned int i, x, click;
  400. Arg arg = {0};
  401. Client *c;
  402. Monitor *m;
  403. XButtonPressedEvent *ev = &e->xbutton;
  404. click = ClkRootWin;
  405. /* focus monitor if necessary */
  406. if((m = wintomon(ev->window)) && m != selmon) {
  407. unfocus(selmon->sel, True);
  408. selmon = m;
  409. focus(NULL);
  410. }
  411. if(ev->window == selmon->barwin) {
  412. i = x = 0;
  413. do {
  414. x += TEXTW(tags[i]);
  415. } while(ev->x >= x && ++i < LENGTH(tags));
  416. if(i < LENGTH(tags)) {
  417. click = ClkTagBar;
  418. arg.ui = 1 << i;
  419. }
  420. else if(ev->x < x + blw)
  421. click = ClkLtSymbol;
  422. else if(ev->x > selmon->wx + selmon->ww - TEXTW(stext))
  423. click = ClkStatusText;
  424. else
  425. click = ClkWinTitle;
  426. }
  427. else if((c = wintoclient(ev->window))) {
  428. focus(c);
  429. click = ClkClientWin;
  430. }
  431. for(i = 0; i < LENGTH(buttons); i++)
  432. if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
  433. && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
  434. buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
  435. }
  436. void
  437. checkotherwm(void) {
  438. otherwm = False;
  439. xerrorxlib = XSetErrorHandler(xerrorstart);
  440. /* this causes an error if some other window manager is running */
  441. XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
  442. XSync(dpy, False);
  443. if(otherwm)
  444. die("dwm: another window manager is already running\n");
  445. XSetErrorHandler(xerror);
  446. XSync(dpy, False);
  447. }
  448. void
  449. cleanup(void) {
  450. Arg a = {.ui = ~0};
  451. Layout foo = { "", NULL };
  452. Monitor *m;
  453. view(&a);
  454. selmon->lt[selmon->sellt] = &foo;
  455. for(m = mons; m; m = m->next)
  456. while(m->stack)
  457. unmanage(m->stack, False);
  458. if(dc.font.set)
  459. XFreeFontSet(dpy, dc.font.set);
  460. else
  461. XFreeFont(dpy, dc.font.xfont);
  462. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  463. XFreePixmap(dpy, dc.drawable);
  464. XFreeGC(dpy, dc.gc);
  465. XFreeCursor(dpy, cursor[CurNormal]);
  466. XFreeCursor(dpy, cursor[CurResize]);
  467. XFreeCursor(dpy, cursor[CurMove]);
  468. while(mons)
  469. cleanupmon(mons);
  470. XSync(dpy, False);
  471. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  472. }
  473. void
  474. cleanupmon(Monitor *mon) {
  475. Monitor *m;
  476. if(mon == mons)
  477. mons = mons->next;
  478. else {
  479. for(m = mons; m && m->next != mon; m = m->next);
  480. m->next = mon->next;
  481. }
  482. XUnmapWindow(dpy, mon->barwin);
  483. XDestroyWindow(dpy, mon->barwin);
  484. free(mon);
  485. }
  486. void
  487. clearurgent(Client *c) {
  488. XWMHints *wmh;
  489. c->isurgent = False;
  490. if(!(wmh = XGetWMHints(dpy, c->win)))
  491. return;
  492. wmh->flags &= ~XUrgencyHint;
  493. XSetWMHints(dpy, c->win, wmh);
  494. XFree(wmh);
  495. }
  496. void
  497. configure(Client *c) {
  498. XConfigureEvent ce;
  499. ce.type = ConfigureNotify;
  500. ce.display = dpy;
  501. ce.event = c->win;
  502. ce.window = c->win;
  503. ce.x = c->x;
  504. ce.y = c->y;
  505. ce.width = c->w;
  506. ce.height = c->h;
  507. ce.border_width = c->bw;
  508. ce.above = None;
  509. ce.override_redirect = False;
  510. XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
  511. }
  512. void
  513. configurenotify(XEvent *e) {
  514. Monitor *m;
  515. XConfigureEvent *ev = &e->xconfigure;
  516. if(ev->window == root) {
  517. sw = ev->width;
  518. sh = ev->height;
  519. if(updategeom()) {
  520. if(dc.drawable != 0)
  521. XFreePixmap(dpy, dc.drawable);
  522. dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
  523. updatebars();
  524. for(m = mons; m; m = m->next)
  525. XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
  526. arrange(NULL);
  527. }
  528. }
  529. }
  530. void
  531. configurerequest(XEvent *e) {
  532. Client *c;
  533. Monitor *m;
  534. XConfigureRequestEvent *ev = &e->xconfigurerequest;
  535. XWindowChanges wc;
  536. if((c = wintoclient(ev->window))) {
  537. if(ev->value_mask & CWBorderWidth)
  538. c->bw = ev->border_width;
  539. else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
  540. m = c->mon;
  541. if(ev->value_mask & CWX)
  542. c->x = m->mx + ev->x;
  543. if(ev->value_mask & CWY)
  544. c->y = m->my + ev->y;
  545. if(ev->value_mask & CWWidth)
  546. c->w = ev->width;
  547. if(ev->value_mask & CWHeight)
  548. c->h = ev->height;
  549. if((c->x + c->w) > m->mx + m->mw && c->isfloating)
  550. c->x = m->mx + (m->mw / 2 - c->w / 2); /* center in x direction */
  551. if((c->y + c->h) > m->my + m->mh && c->isfloating)
  552. c->y = m->my + (m->mh / 2 - c->h / 2); /* center in y direction */
  553. if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
  554. configure(c);
  555. if(ISVISIBLE(c))
  556. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  557. }
  558. else
  559. configure(c);
  560. }
  561. else {
  562. wc.x = ev->x;
  563. wc.y = ev->y;
  564. wc.width = ev->width;
  565. wc.height = ev->height;
  566. wc.border_width = ev->border_width;
  567. wc.sibling = ev->above;
  568. wc.stack_mode = ev->detail;
  569. XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
  570. }
  571. XSync(dpy, False);
  572. }
  573. Monitor *
  574. createmon(void) {
  575. Monitor *m;
  576. if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
  577. die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
  578. m->tagset[0] = m->tagset[1] = 1;
  579. m->mfact = mfact;
  580. m->showbar = showbar;
  581. m->topbar = topbar;
  582. m->lt[0] = &layouts[0];
  583. m->lt[1] = &layouts[1 % LENGTH(layouts)];
  584. strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
  585. return m;
  586. }
  587. void
  588. destroynotify(XEvent *e) {
  589. Client *c;
  590. XDestroyWindowEvent *ev = &e->xdestroywindow;
  591. if((c = wintoclient(ev->window)))
  592. unmanage(c, True);
  593. }
  594. void
  595. detach(Client *c) {
  596. Client **tc;
  597. for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
  598. *tc = c->next;
  599. }
  600. void
  601. detachstack(Client *c) {
  602. Client **tc, *t;
  603. for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
  604. *tc = c->snext;
  605. if(c == c->mon->sel) {
  606. for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
  607. c->mon->sel = t;
  608. }
  609. }
  610. void
  611. die(const char *errstr, ...) {
  612. va_list ap;
  613. va_start(ap, errstr);
  614. vfprintf(stderr, errstr, ap);
  615. va_end(ap);
  616. exit(EXIT_FAILURE);
  617. }
  618. Monitor *
  619. dirtomon(int dir) {
  620. Monitor *m = NULL;
  621. if(dir > 0) {
  622. if(!(m = selmon->next))
  623. m = mons;
  624. }
  625. else {
  626. if(selmon == mons)
  627. for(m = mons; m->next; m = m->next);
  628. else
  629. for(m = mons; m->next != selmon; m = m->next);
  630. }
  631. return m;
  632. }
  633. void
  634. drawbar(Monitor *m) {
  635. int x;
  636. unsigned int i, occ = 0, urg = 0;
  637. unsigned long *col;
  638. Client *c;
  639. for(c = m->clients; c; c = c->next) {
  640. occ |= c->tags;
  641. if(c->isurgent)
  642. urg |= c->tags;
  643. }
  644. dc.x = 0;
  645. for(i = 0; i < LENGTH(tags); i++) {
  646. dc.w = TEXTW(tags[i]);
  647. col = m->tagset[m->seltags] & 1 << i ? dc.sel : dc.norm;
  648. drawtext(tags[i], col, urg & 1 << i);
  649. drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
  650. occ & 1 << i, urg & 1 << i, col);
  651. dc.x += dc.w;
  652. }
  653. dc.w = blw = TEXTW(m->ltsymbol);
  654. drawtext(m->ltsymbol, dc.norm, False);
  655. dc.x += dc.w;
  656. x = dc.x;
  657. if(m == selmon) { /* status is only drawn on selected monitor */
  658. dc.w = TEXTW(stext);
  659. dc.x = m->ww - dc.w;
  660. if(dc.x < x) {
  661. dc.x = x;
  662. dc.w = m->ww - x;
  663. }
  664. drawtext(stext, dc.norm, False);
  665. }
  666. else
  667. dc.x = m->ww;
  668. if((dc.w = dc.x - x) > bh) {
  669. dc.x = x;
  670. if(m->sel) {
  671. col = m == selmon ? dc.sel : dc.norm;
  672. drawtext(m->sel->name, col, False);
  673. drawsquare(m->sel->isfixed, m->sel->isfloating, False, col);
  674. }
  675. else
  676. drawtext(NULL, dc.norm, False);
  677. }
  678. XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
  679. XSync(dpy, False);
  680. }
  681. void
  682. drawbars(void) {
  683. Monitor *m;
  684. for(m = mons; m; m = m->next)
  685. drawbar(m);
  686. }
  687. void
  688. drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
  689. int x;
  690. XGCValues gcv;
  691. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  692. gcv.foreground = col[invert ? ColBG : ColFG];
  693. XChangeGC(dpy, dc.gc, GCForeground, &gcv);
  694. x = (dc.font.ascent + dc.font.descent + 2) / 4;
  695. r.x = dc.x + 1;
  696. r.y = dc.y + 1;
  697. if(filled) {
  698. r.width = r.height = x + 1;
  699. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  700. }
  701. else if(empty) {
  702. r.width = r.height = x;
  703. XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  704. }
  705. }
  706. void
  707. drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
  708. char buf[256];
  709. int i, x, y, h, len, olen;
  710. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  711. XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
  712. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  713. if(!text)
  714. return;
  715. olen = strlen(text);
  716. h = dc.font.ascent + dc.font.descent;
  717. y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
  718. x = dc.x + (h / 2);
  719. /* shorten text if necessary */
  720. for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
  721. if(!len)
  722. return;
  723. memcpy(buf, text, len);
  724. if(len < olen)
  725. for(i = len; i && i > len - 3; buf[--i] = '.');
  726. XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
  727. if(dc.font.set)
  728. XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
  729. else
  730. XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
  731. }
  732. void
  733. enternotify(XEvent *e) {
  734. Monitor *m;
  735. XCrossingEvent *ev = &e->xcrossing;
  736. if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
  737. return;
  738. if((m = wintomon(ev->window)) && m != selmon) {
  739. unfocus(selmon->sel, True);
  740. selmon = m;
  741. }
  742. focus(wintoclient(ev->window));
  743. }
  744. void
  745. expose(XEvent *e) {
  746. Monitor *m;
  747. XExposeEvent *ev = &e->xexpose;
  748. if(ev->count == 0 && (m = wintomon(ev->window)))
  749. drawbar(m);
  750. }
  751. void
  752. focus(Client *c) {
  753. if(!c || !ISVISIBLE(c))
  754. for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
  755. /* was if(selmon->sel) */
  756. if(selmon->sel && selmon->sel != c)
  757. unfocus(selmon->sel, False);
  758. if(c) {
  759. if(c->mon != selmon)
  760. selmon = c->mon;
  761. if(c->isurgent)
  762. clearurgent(c);
  763. detachstack(c);
  764. attachstack(c);
  765. grabbuttons(c, True);
  766. XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
  767. XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  768. }
  769. else
  770. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  771. selmon->sel = c;
  772. drawbars();
  773. }
  774. void
  775. focusin(XEvent *e) { /* there are some broken focus acquiring clients */
  776. XFocusChangeEvent *ev = &e->xfocus;
  777. if(selmon->sel && ev->window != selmon->sel->win)
  778. XSetInputFocus(dpy, selmon->sel->win, RevertToPointerRoot, CurrentTime);
  779. }
  780. void
  781. focusmon(const Arg *arg) {
  782. Monitor *m = NULL;
  783. if(!mons->next)
  784. return;
  785. if((m = dirtomon(arg->i)) == selmon)
  786. return;
  787. unfocus(selmon->sel, True);
  788. selmon = m;
  789. focus(NULL);
  790. }
  791. void
  792. focusstack(const Arg *arg) {
  793. Client *c = NULL, *i;
  794. if(!selmon->sel)
  795. return;
  796. if(arg->i > 0) {
  797. for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
  798. if(!c)
  799. for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
  800. }
  801. else {
  802. for(i = selmon->clients; i != selmon->sel; i = i->next)
  803. if(ISVISIBLE(i))
  804. c = i;
  805. if(!c)
  806. for(; i; i = i->next)
  807. if(ISVISIBLE(i))
  808. c = i;
  809. }
  810. if(c) {
  811. focus(c);
  812. restack(selmon);
  813. }
  814. }
  815. unsigned long
  816. getcolor(const char *colstr) {
  817. Colormap cmap = DefaultColormap(dpy, screen);
  818. XColor color;
  819. if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
  820. die("error, cannot allocate color '%s'\n", colstr);
  821. return color.pixel;
  822. }
  823. Bool
  824. getrootptr(int *x, int *y) {
  825. int di;
  826. unsigned int dui;
  827. Window dummy;
  828. return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
  829. }
  830. long
  831. getstate(Window w) {
  832. int format;
  833. long result = -1;
  834. unsigned char *p = NULL;
  835. unsigned long n, extra;
  836. Atom real;
  837. if(XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
  838. &real, &format, &n, &extra, (unsigned char **)&p) != Success)
  839. return -1;
  840. if(n != 0)
  841. result = *p;
  842. XFree(p);
  843. return result;
  844. }
  845. Bool
  846. gettextprop(Window w, Atom atom, char *text, unsigned int size) {
  847. char **list = NULL;
  848. int n;
  849. XTextProperty name;
  850. if(!text || size == 0)
  851. return False;
  852. text[0] = '\0';
  853. XGetTextProperty(dpy, w, &name, atom);
  854. if(!name.nitems)
  855. return False;
  856. if(name.encoding == XA_STRING)
  857. strncpy(text, (char *)name.value, size - 1);
  858. else {
  859. if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
  860. strncpy(text, *list, size - 1);
  861. XFreeStringList(list);
  862. }
  863. }
  864. text[size - 1] = '\0';
  865. XFree(name.value);
  866. return True;
  867. }
  868. void
  869. grabbuttons(Client *c, Bool focused) {
  870. updatenumlockmask();
  871. {
  872. unsigned int i, j;
  873. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  874. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  875. if(focused) {
  876. for(i = 0; i < LENGTH(buttons); i++)
  877. if(buttons[i].click == ClkClientWin)
  878. for(j = 0; j < LENGTH(modifiers); j++)
  879. XGrabButton(dpy, buttons[i].button,
  880. buttons[i].mask | modifiers[j],
  881. c->win, False, BUTTONMASK,
  882. GrabModeAsync, GrabModeSync, None, None);
  883. }
  884. else
  885. XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
  886. BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
  887. }
  888. }
  889. void
  890. grabkeys(void) {
  891. updatenumlockmask();
  892. {
  893. unsigned int i, j;
  894. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  895. KeyCode code;
  896. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  897. for(i = 0; i < LENGTH(keys); i++) {
  898. if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
  899. for(j = 0; j < LENGTH(modifiers); j++)
  900. XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
  901. True, GrabModeAsync, GrabModeAsync);
  902. }
  903. }
  904. }
  905. void
  906. initfont(const char *fontstr) {
  907. char *def, **missing;
  908. int i, n;
  909. missing = NULL;
  910. dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
  911. if(missing) {
  912. while(n--)
  913. fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
  914. XFreeStringList(missing);
  915. }
  916. if(dc.font.set) {
  917. XFontSetExtents *font_extents;
  918. XFontStruct **xfonts;
  919. char **font_names;
  920. dc.font.ascent = dc.font.descent = 0;
  921. font_extents = XExtentsOfFontSet(dc.font.set);
  922. n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
  923. for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
  924. dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
  925. dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
  926. xfonts++;
  927. }
  928. }
  929. else {
  930. if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
  931. && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
  932. die("error, cannot load font: '%s'\n", fontstr);
  933. dc.font.ascent = dc.font.xfont->ascent;
  934. dc.font.descent = dc.font.xfont->descent;
  935. }
  936. dc.font.height = dc.font.ascent + dc.font.descent;
  937. }
  938. Bool
  939. isprotodel(Client *c) {
  940. int i, n;
  941. Atom *protocols;
  942. Bool ret = False;
  943. if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
  944. for(i = 0; !ret && i < n; i++)
  945. if(protocols[i] == wmatom[WMDelete])
  946. ret = True;
  947. XFree(protocols);
  948. }
  949. return ret;
  950. }
  951. #ifdef XINERAMA
  952. static Bool
  953. isuniquegeom(XineramaScreenInfo *unique, size_t len, XineramaScreenInfo *info) {
  954. unsigned int i;
  955. for(i = 0; i < len; i++)
  956. if(unique[i].x_org == info->x_org && unique[i].y_org == info->y_org
  957. && unique[i].width == info->width && unique[i].height == info->height)
  958. return False;
  959. return True;
  960. }
  961. #endif /* XINERAMA */
  962. void
  963. keypress(XEvent *e) {
  964. unsigned int i;
  965. KeySym keysym;
  966. XKeyEvent *ev;
  967. ev = &e->xkey;
  968. keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
  969. for(i = 0; i < LENGTH(keys); i++)
  970. if(keysym == keys[i].keysym
  971. && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
  972. && keys[i].func)
  973. keys[i].func(&(keys[i].arg));
  974. }
  975. void
  976. killclient(const Arg *arg) {
  977. XEvent ev;
  978. if(!selmon->sel)
  979. return;
  980. if(isprotodel(selmon->sel)) {
  981. ev.type = ClientMessage;
  982. ev.xclient.window = selmon->sel->win;
  983. ev.xclient.message_type = wmatom[WMProtocols];
  984. ev.xclient.format = 32;
  985. ev.xclient.data.l[0] = wmatom[WMDelete];
  986. ev.xclient.data.l[1] = CurrentTime;
  987. XSendEvent(dpy, selmon->sel->win, False, NoEventMask, &ev);
  988. }
  989. else {
  990. XGrabServer(dpy);
  991. XSetErrorHandler(xerrordummy);
  992. XSetCloseDownMode(dpy, DestroyAll);
  993. XKillClient(dpy, selmon->sel->win);
  994. XSync(dpy, False);
  995. XSetErrorHandler(xerror);
  996. XUngrabServer(dpy);
  997. }
  998. }
  999. void
  1000. manage(Window w, XWindowAttributes *wa) {
  1001. static Client cz;
  1002. Client *c, *t = NULL;
  1003. Window trans = None;
  1004. XWindowChanges wc;
  1005. if(!(c = malloc(sizeof(Client))))
  1006. die("fatal: could not malloc() %u bytes\n", sizeof(Client));
  1007. *c = cz;
  1008. c->win = w;
  1009. updatetitle(c);
  1010. if(XGetTransientForHint(dpy, w, &trans))
  1011. t = wintoclient(trans);
  1012. if(t) {
  1013. c->mon = t->mon;
  1014. c->tags = t->tags;
  1015. }
  1016. else {
  1017. c->mon = selmon;
  1018. applyrules(c);
  1019. }
  1020. /* geometry */
  1021. c->x = c->oldx = wa->x + c->mon->wx;
  1022. c->y = c->oldy = wa->y + c->mon->wy;
  1023. c->w = c->oldw = wa->width;
  1024. c->h = c->oldh = wa->height;
  1025. c->oldbw = wa->border_width;
  1026. if(c->w == c->mon->mw && c->h == c->mon->mh) {
  1027. c->isfloating = 1;
  1028. c->x = c->mon->mx;
  1029. c->y = c->mon->my;
  1030. c->bw = 0;
  1031. }
  1032. else {
  1033. if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
  1034. c->x = c->mon->mx + c->mon->mw - WIDTH(c);
  1035. if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
  1036. c->y = c->mon->my + c->mon->mh - HEIGHT(c);
  1037. c->x = MAX(c->x, c->mon->mx);
  1038. /* only fix client y-offset, if the client center might cover the bar */
  1039. c->y = MAX(c->y, ((c->mon->by == 0) && (c->x + (c->w / 2) >= c->mon->wx)
  1040. && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
  1041. c->bw = borderpx;
  1042. }
  1043. wc.border_width = c->bw;
  1044. XConfigureWindow(dpy, w, CWBorderWidth, &wc);
  1045. XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
  1046. configure(c); /* propagates border_width, if size doesn't change */
  1047. updatesizehints(c);
  1048. XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
  1049. grabbuttons(c, False);
  1050. if(!c->isfloating)
  1051. c->isfloating = c->oldstate = trans != None || c->isfixed;
  1052. if(c->isfloating)
  1053. XRaiseWindow(dpy, c->win);
  1054. attach(c);
  1055. attachstack(c);
  1056. XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
  1057. XMapWindow(dpy, c->win);
  1058. setclientstate(c, NormalState);
  1059. arrange(c->mon);
  1060. }
  1061. void
  1062. mappingnotify(XEvent *e) {
  1063. XMappingEvent *ev = &e->xmapping;
  1064. XRefreshKeyboardMapping(ev);
  1065. if(ev->request == MappingKeyboard)
  1066. grabkeys();
  1067. }
  1068. void
  1069. maprequest(XEvent *e) {
  1070. static XWindowAttributes wa;
  1071. XMapRequestEvent *ev = &e->xmaprequest;
  1072. if(!XGetWindowAttributes(dpy, ev->window, &wa))
  1073. return;
  1074. if(wa.override_redirect)
  1075. return;
  1076. if(!wintoclient(ev->window))
  1077. manage(ev->window, &wa);
  1078. }
  1079. void
  1080. monocle(Monitor *m) {
  1081. unsigned int n = 0;
  1082. Client *c;
  1083. for(c = m->clients; c; c = c->next)
  1084. if(ISVISIBLE(c))
  1085. n++;
  1086. if(n > 0) /* override layout symbol */
  1087. snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
  1088. for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
  1089. resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
  1090. }
  1091. void
  1092. movemouse(const Arg *arg) {
  1093. int x, y, ocx, ocy, nx, ny;
  1094. Client *c;
  1095. Monitor *m;
  1096. XEvent ev;
  1097. if(!(c = selmon->sel))
  1098. return;
  1099. restack(selmon);
  1100. ocx = c->x;
  1101. ocy = c->y;
  1102. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1103. None, cursor[CurMove], CurrentTime) != GrabSuccess)
  1104. return;
  1105. if(!getrootptr(&x, &y))
  1106. return;
  1107. do {
  1108. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1109. switch (ev.type) {
  1110. case ConfigureRequest:
  1111. case Expose:
  1112. case MapRequest:
  1113. handler[ev.type](&ev);
  1114. break;
  1115. case MotionNotify:
  1116. nx = ocx + (ev.xmotion.x - x);
  1117. ny = ocy + (ev.xmotion.y - y);
  1118. if(snap && nx >= selmon->wx && nx <= selmon->wx + selmon->ww
  1119. && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
  1120. if(abs(selmon->wx - nx) < snap)
  1121. nx = selmon->wx;
  1122. else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
  1123. nx = selmon->wx + selmon->ww - WIDTH(c);
  1124. if(abs(selmon->wy - ny) < snap)
  1125. ny = selmon->wy;
  1126. else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
  1127. ny = selmon->wy + selmon->wh - HEIGHT(c);
  1128. if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1129. && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
  1130. togglefloating(NULL);
  1131. }
  1132. if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1133. resize(c, nx, ny, c->w, c->h, True);
  1134. break;
  1135. }
  1136. } while(ev.type != ButtonRelease);
  1137. XUngrabPointer(dpy, CurrentTime);
  1138. if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
  1139. sendmon(c, m);
  1140. selmon = m;
  1141. focus(NULL);
  1142. }
  1143. }
  1144. Client *
  1145. nexttiled(Client *c) {
  1146. for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
  1147. return c;
  1148. }
  1149. Monitor *
  1150. ptrtomon(int x, int y) {
  1151. Monitor *m;
  1152. for(m = mons; m; m = m->next)
  1153. if(INRECT(x, y, m->wx, m->wy, m->ww, m->wh))
  1154. return m;
  1155. return selmon;
  1156. }
  1157. void
  1158. propertynotify(XEvent *e) {
  1159. Client *c;
  1160. Window trans;
  1161. XPropertyEvent *ev = &e->xproperty;
  1162. if((ev->window == root) && (ev->atom == XA_WM_NAME))
  1163. updatestatus();
  1164. else if(ev->state == PropertyDelete)
  1165. return; /* ignore */
  1166. else if((c = wintoclient(ev->window))) {
  1167. switch (ev->atom) {
  1168. default: break;
  1169. case XA_WM_TRANSIENT_FOR:
  1170. XGetTransientForHint(dpy, c->win, &trans);
  1171. if(!c->isfloating && (c->isfloating = (wintoclient(trans) != NULL)))
  1172. arrange(c->mon);
  1173. break;
  1174. case XA_WM_NORMAL_HINTS:
  1175. updatesizehints(c);
  1176. break;
  1177. case XA_WM_HINTS:
  1178. updatewmhints(c);
  1179. drawbars();
  1180. break;
  1181. }
  1182. if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
  1183. updatetitle(c);
  1184. if(c == c->mon->sel)
  1185. drawbar(c->mon);
  1186. }
  1187. }
  1188. }
  1189. void
  1190. clientmessage(XEvent *e) {
  1191. XClientMessageEvent *cme = &e->xclient;
  1192. Client *c;
  1193. if((c = wintoclient(cme->window))
  1194. && (cme->message_type == netatom[NetWMState] && cme->data.l[1] == netatom[NetWMFullscreen]))
  1195. {
  1196. if(cme->data.l[0]) {
  1197. XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
  1198. PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
  1199. c->oldstate = c->isfloating;
  1200. c->oldbw = c->bw;
  1201. c->bw = 0;
  1202. c->isfloating = 1;
  1203. resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
  1204. XRaiseWindow(dpy, c->win);
  1205. }
  1206. else {
  1207. XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
  1208. PropModeReplace, (unsigned char*)0, 0);
  1209. c->isfloating = c->oldstate;
  1210. c->bw = c->oldbw;
  1211. c->x = c->oldx;
  1212. c->y = c->oldy;
  1213. c->w = c->oldw;
  1214. c->h = c->oldh;
  1215. resizeclient(c, c->x, c->y, c->w, c->h);
  1216. arrange(c->mon);
  1217. }
  1218. }
  1219. }
  1220. void
  1221. quit(const Arg *arg) {
  1222. running = False;
  1223. }
  1224. void
  1225. resize(Client *c, int x, int y, int w, int h, Bool interact) {
  1226. if(applysizehints(c, &x, &y, &w, &h, interact))
  1227. resizeclient(c, x, y, w, h);
  1228. }
  1229. void
  1230. resizeclient(Client *c, int x, int y, int w, int h) {
  1231. XWindowChanges wc;
  1232. c->oldx = c->x; c->x = wc.x = x;
  1233. c->oldy = c->y; c->y = wc.y = y;
  1234. c->oldw = c->w; c->w = wc.width = w;
  1235. c->oldh = c->h; c->h = wc.height = h;
  1236. wc.border_width = c->bw;
  1237. XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
  1238. configure(c);
  1239. XSync(dpy, False);
  1240. }
  1241. void
  1242. resizemouse(const Arg *arg) {
  1243. int ocx, ocy;
  1244. int nw, nh;
  1245. Client *c;
  1246. Monitor *m;
  1247. XEvent ev;
  1248. if(!(c = selmon->sel))
  1249. return;
  1250. restack(selmon);
  1251. ocx = c->x;
  1252. ocy = c->y;
  1253. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1254. None, cursor[CurResize], CurrentTime) != GrabSuccess)
  1255. return;
  1256. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1257. do {
  1258. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1259. switch(ev.type) {
  1260. case ConfigureRequest:
  1261. case Expose:
  1262. case MapRequest:
  1263. handler[ev.type](&ev);
  1264. break;
  1265. case MotionNotify:
  1266. nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
  1267. nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
  1268. if(snap && nw >= selmon->wx && nw <= selmon->wx + selmon->ww
  1269. && nh >= selmon->wy && nh <= selmon->wy + selmon->wh)
  1270. {
  1271. if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1272. && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
  1273. togglefloating(NULL);
  1274. }
  1275. if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1276. resize(c, c->x, c->y, nw, nh, True);
  1277. break;
  1278. }
  1279. } while(ev.type != ButtonRelease);
  1280. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1281. XUngrabPointer(dpy, CurrentTime);
  1282. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1283. if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
  1284. sendmon(c, m);
  1285. selmon = m;
  1286. focus(NULL);
  1287. }
  1288. }
  1289. void
  1290. restack(Monitor *m) {
  1291. Client *c;
  1292. XEvent ev;
  1293. XWindowChanges wc;
  1294. drawbar(m);
  1295. if(!m->sel)
  1296. return;
  1297. if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
  1298. XRaiseWindow(dpy, m->sel->win);
  1299. if(m->lt[m->sellt]->arrange) {
  1300. wc.stack_mode = Below;
  1301. wc.sibling = m->barwin;
  1302. for(c = m->stack; c; c = c->snext)
  1303. if(!c->isfloating && ISVISIBLE(c)) {
  1304. XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
  1305. wc.sibling = c->win;
  1306. }
  1307. }
  1308. XSync(dpy, False);
  1309. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1310. }
  1311. void
  1312. run(void) {
  1313. XEvent ev;
  1314. /* main event loop */
  1315. XSync(dpy, False);
  1316. while(running && !XNextEvent(dpy, &ev)) {
  1317. if(handler[ev.type])
  1318. handler[ev.type](&ev); /* call handler */
  1319. }
  1320. }
  1321. void
  1322. scan(void) {
  1323. unsigned int i, num;
  1324. Window d1, d2, *wins = NULL;
  1325. XWindowAttributes wa;
  1326. if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  1327. for(i = 0; i < num; i++) {
  1328. if(!XGetWindowAttributes(dpy, wins[i], &wa)
  1329. || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  1330. continue;
  1331. if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
  1332. manage(wins[i], &wa);
  1333. }
  1334. for(i = 0; i < num; i++) { /* now the transients */
  1335. if(!XGetWindowAttributes(dpy, wins[i], &wa))
  1336. continue;
  1337. if(XGetTransientForHint(dpy, wins[i], &d1)
  1338. && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
  1339. manage(wins[i], &wa);
  1340. }
  1341. if(wins)
  1342. XFree(wins);
  1343. }
  1344. }
  1345. void
  1346. sendmon(Client *c, Monitor *m) {
  1347. if(c->mon == m)
  1348. return;
  1349. unfocus(c, True);
  1350. detach(c);
  1351. detachstack(c);
  1352. c->mon = m;
  1353. c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
  1354. attach(c);
  1355. attachstack(c);
  1356. focus(NULL);
  1357. arrange(NULL);
  1358. }
  1359. void
  1360. setclientstate(Client *c, long state) {
  1361. long data[] = { state, None };
  1362. XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
  1363. PropModeReplace, (unsigned char *)data, 2);
  1364. }
  1365. void
  1366. setlayout(const Arg *arg) {
  1367. if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
  1368. selmon->sellt ^= 1;
  1369. if(arg && arg->v)
  1370. selmon->lt[selmon->sellt] = (Layout *)arg->v;
  1371. strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
  1372. if(selmon->sel)
  1373. arrange(selmon);
  1374. else
  1375. drawbar(selmon);
  1376. }
  1377. /* arg > 1.0 will set mfact absolutly */
  1378. void
  1379. setmfact(const Arg *arg) {
  1380. float f;
  1381. if(!arg || !selmon->lt[selmon->sellt]->arrange)
  1382. return;
  1383. f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
  1384. if(f < 0.1 || f > 0.9)
  1385. return;
  1386. selmon->mfact = f;
  1387. arrange(selmon);
  1388. }
  1389. void
  1390. setup(void) {
  1391. XSetWindowAttributes wa;
  1392. /* clean up any zombies immediately */
  1393. sigchld(0);
  1394. /* init screen */
  1395. screen = DefaultScreen(dpy);
  1396. root = RootWindow(dpy, screen);
  1397. initfont(font);
  1398. sw = DisplayWidth(dpy, screen);
  1399. sh = DisplayHeight(dpy, screen);
  1400. bh = dc.h = dc.font.height + 2;
  1401. updategeom();
  1402. /* init atoms */
  1403. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  1404. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  1405. wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
  1406. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  1407. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  1408. netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
  1409. netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
  1410. /* init cursors */
  1411. cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
  1412. cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
  1413. cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
  1414. /* init appearance */
  1415. dc.norm[ColBorder] = getcolor(normbordercolor);
  1416. dc.norm[ColBG] = getcolor(normbgcolor);
  1417. dc.norm[ColFG] = getcolor(normfgcolor);
  1418. dc.sel[ColBorder] = getcolor(selbordercolor);
  1419. dc.sel[ColBG] = getcolor(selbgcolor);
  1420. dc.sel[ColFG] = getcolor(selfgcolor);
  1421. dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
  1422. dc.gc = XCreateGC(dpy, root, 0, NULL);
  1423. XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
  1424. if(!dc.font.set)
  1425. XSetFont(dpy, dc.gc, dc.font.xfont->fid);
  1426. /* init bars */
  1427. updatebars();
  1428. updatestatus();
  1429. /* EWMH support per view */
  1430. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  1431. PropModeReplace, (unsigned char *) netatom, NetLast);
  1432. /* select for events */
  1433. wa.cursor = cursor[CurNormal];
  1434. wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
  1435. |EnterWindowMask|LeaveWindowMask|StructureNotifyMask
  1436. |PropertyChangeMask;
  1437. XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
  1438. XSelectInput(dpy, root, wa.event_mask);
  1439. grabkeys();
  1440. }
  1441. void
  1442. showhide(Client *c) {
  1443. if(!c)
  1444. return;
  1445. if(ISVISIBLE(c)) { /* show clients top down */
  1446. XMoveWindow(dpy, c->win, c->x, c->y);
  1447. if(!c->mon->lt[c->mon->sellt]->arrange || c->isfloating)
  1448. resize(c, c->x, c->y, c->w, c->h, False);
  1449. showhide(c->snext);
  1450. }
  1451. else { /* hide clients bottom up */
  1452. showhide(c->snext);
  1453. XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  1454. }
  1455. }
  1456. void
  1457. sigchld(int unused) {
  1458. if(signal(SIGCHLD, sigchld) == SIG_ERR)
  1459. die("Can't install SIGCHLD handler");
  1460. while(0 < waitpid(-1, NULL, WNOHANG));
  1461. }
  1462. void
  1463. spawn(const Arg *arg) {
  1464. if(fork() == 0) {
  1465. if(dpy)
  1466. close(ConnectionNumber(dpy));
  1467. setsid();
  1468. execvp(((char **)arg->v)[0], (char **)arg->v);
  1469. fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
  1470. perror(" failed");
  1471. exit(0);
  1472. }
  1473. }
  1474. void
  1475. tag(const Arg *arg) {
  1476. if(selmon->sel && arg->ui & TAGMASK) {
  1477. selmon->sel->tags = arg->ui & TAGMASK;
  1478. arrange(selmon);
  1479. }
  1480. }
  1481. void
  1482. tagmon(const Arg *arg) {
  1483. if(!selmon->sel || !mons->next)
  1484. return;
  1485. sendmon(selmon->sel, dirtomon(arg->i));
  1486. }
  1487. int
  1488. textnw(const char *text, unsigned int len) {
  1489. XRectangle r;
  1490. if(dc.font.set) {
  1491. XmbTextExtents(dc.font.set, text, len, NULL, &r);
  1492. return r.width;
  1493. }
  1494. return XTextWidth(dc.font.xfont, text, len);
  1495. }
  1496. void
  1497. tile(Monitor *m) {
  1498. int x, y, h, w, mw;
  1499. unsigned int i, n;
  1500. Client *c;
  1501. for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
  1502. if(n == 0)
  1503. return;
  1504. /* master */
  1505. c = nexttiled(m->clients);
  1506. mw = m->mfact * m->ww;
  1507. resize(c, m->wx, m->wy, (n == 1 ? m->ww : mw) - 2 * c->bw, m->wh - 2 * c->bw, False);
  1508. if(--n == 0)
  1509. return;
  1510. /* tile stack */
  1511. x = (m->wx + mw > c->x + c->w) ? c->x + c->w + 2 * c->bw : m->wx + mw;
  1512. y = m->wy;
  1513. w = (m->wx + mw > c->x + c->w) ? m->wx + m->ww - x : m->ww - mw;
  1514. h = m->wh / n;
  1515. if(h < bh)
  1516. h = m->wh;
  1517. for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
  1518. resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
  1519. ? m->wy + m->wh - y - 2 * c->bw : h - 2 * c->bw), False);
  1520. if(h != m->wh)
  1521. y = c->y + HEIGHT(c);
  1522. }
  1523. }
  1524. void
  1525. togglebar(const Arg *arg) {
  1526. selmon->showbar = !selmon->showbar;
  1527. updatebarpos(selmon);
  1528. XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
  1529. arrange(selmon);
  1530. }
  1531. void
  1532. togglefloating(const Arg *arg) {
  1533. if(!selmon->sel)
  1534. return;
  1535. selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
  1536. if(selmon->sel->isfloating)
  1537. resize(selmon->sel, selmon->sel->x, selmon->sel->y,
  1538. selmon->sel->w, selmon->sel->h, False);
  1539. arrange(selmon);
  1540. }
  1541. void
  1542. toggletag(const Arg *arg) {
  1543. unsigned int newtags;
  1544. if(!selmon->sel)
  1545. return;
  1546. newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
  1547. if(newtags) {
  1548. selmon->sel->tags = newtags;
  1549. arrange(selmon);
  1550. }
  1551. }
  1552. void
  1553. toggleview(const Arg *arg) {
  1554. unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
  1555. if(newtagset) {
  1556. selmon->tagset[selmon->seltags] = newtagset;
  1557. arrange(selmon);
  1558. }
  1559. }
  1560. void
  1561. unfocus(Client *c, Bool setfocus) {
  1562. if(!c)
  1563. return;
  1564. grabbuttons(c, False);
  1565. XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
  1566. if(setfocus)
  1567. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  1568. }
  1569. void
  1570. unmanage(Client *c, Bool destroyed) {
  1571. Monitor *m = c->mon;
  1572. XWindowChanges wc;
  1573. /* The server grab construct avoids race conditions. */
  1574. detach(c);
  1575. detachstack(c);
  1576. if(!destroyed) {
  1577. wc.border_width = c->oldbw;
  1578. XGrabServer(dpy);
  1579. XSetErrorHandler(xerrordummy);
  1580. XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
  1581. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  1582. setclientstate(c, WithdrawnState);
  1583. XSync(dpy, False);
  1584. XSetErrorHandler(xerror);
  1585. XUngrabServer(dpy);
  1586. }
  1587. free(c);
  1588. focus(NULL);
  1589. arrange(m);
  1590. }
  1591. void
  1592. unmapnotify(XEvent *e) {
  1593. Client *c;
  1594. XUnmapEvent *ev = &e->xunmap;
  1595. if((c = wintoclient(ev->window)))
  1596. unmanage(c, False);
  1597. }
  1598. void
  1599. updatebars(void) {
  1600. Monitor *m;
  1601. XSetWindowAttributes wa;
  1602. wa.override_redirect = True;
  1603. wa.background_pixmap = ParentRelative;
  1604. wa.event_mask = ButtonPressMask|ExposureMask;
  1605. for(m = mons; m; m = m->next) {
  1606. m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
  1607. CopyFromParent, DefaultVisual(dpy, screen),
  1608. CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
  1609. XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
  1610. XMapRaised(dpy, m->barwin);
  1611. }
  1612. }
  1613. void
  1614. updatebarpos(Monitor *m) {
  1615. m->wy = m->my;
  1616. m->wh = m->mh;
  1617. if(m->showbar) {
  1618. m->wh -= bh;
  1619. m->by = m->topbar ? m->wy : m->wy + m->wh;
  1620. m->wy = m->topbar ? m->wy + bh : m->wy;
  1621. }
  1622. else
  1623. m->by = -bh;
  1624. }
  1625. Bool
  1626. updategeom(void) {
  1627. Bool dirty = False;
  1628. #ifdef XINERAMA
  1629. if(XineramaIsActive(dpy)) {
  1630. int i, j, n, nn;
  1631. Client *c;
  1632. Monitor *m;
  1633. XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
  1634. XineramaScreenInfo *unique = NULL;
  1635. for(n = 0, m = mons; m; m = m->next, n++);
  1636. /* only consider unique geometries as separate screens */
  1637. if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScreenInfo) * nn)))
  1638. die("fatal: could not malloc() %u bytes\n", sizeof(XineramaScreenInfo) * nn);
  1639. for(i = 0, j = 0; i < nn; i++)
  1640. if(isuniquegeom(unique, j, &info[i]))
  1641. memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
  1642. XFree(info);
  1643. nn = j;
  1644. if(n <= nn) {
  1645. for(i = 0; i < (nn - n); i++) { /* new monitors available */
  1646. for(m = mons; m && m->next; m = m->next);
  1647. if(m)
  1648. m->next = createmon();
  1649. else
  1650. mons = createmon();
  1651. }
  1652. for(i = 0, m = mons; i < nn && m; m = m->next, i++)
  1653. if(i >= n
  1654. || (unique[i].x_org != m->mx || unique[i].y_org != m->my
  1655. || unique[i].width != m->mw || unique[i].height != m->mh))
  1656. {
  1657. dirty = True;
  1658. m->num = i;
  1659. m->mx = m->wx = unique[i].x_org;
  1660. m->my = m->wy = unique[i].y_org;
  1661. m->mw = m->ww = unique[i].width;
  1662. m->mh = m->wh = unique[i].height;
  1663. updatebarpos(m);
  1664. }
  1665. }
  1666. else { /* less monitors available nn < n */
  1667. for(i = nn; i < n; i++) {
  1668. for(m = mons; m && m->next; m = m->next);
  1669. while(m->clients) {
  1670. dirty = True;
  1671. c = m->clients;
  1672. m->clients = c->next;
  1673. detachstack(c);
  1674. c->mon = mons;
  1675. attach(c);
  1676. attachstack(c);
  1677. }
  1678. if(m == selmon)
  1679. selmon = mons;
  1680. cleanupmon(m);
  1681. }
  1682. }
  1683. free(unique);
  1684. }
  1685. else
  1686. #endif /* XINERAMA */
  1687. /* default monitor setup */
  1688. {
  1689. if(!mons)
  1690. mons = createmon();
  1691. if(mons->mw != sw || mons->mh != sh) {
  1692. dirty = True;
  1693. mons->mw = mons->ww = sw;
  1694. mons->mh = mons->wh = sh;
  1695. updatebarpos(mons);
  1696. }
  1697. }
  1698. if(dirty) {
  1699. selmon = mons;
  1700. selmon = wintomon(root);
  1701. }
  1702. return dirty;
  1703. }
  1704. void
  1705. updatenumlockmask(void) {
  1706. unsigned int i, j;
  1707. XModifierKeymap *modmap;
  1708. numlockmask = 0;
  1709. modmap = XGetModifierMapping(dpy);
  1710. for(i = 0; i < 8; i++)
  1711. for(j = 0; j < modmap->max_keypermod; j++)
  1712. if(modmap->modifiermap[i * modmap->max_keypermod + j]
  1713. == XKeysymToKeycode(dpy, XK_Num_Lock))
  1714. numlockmask = (1 << i);
  1715. XFreeModifiermap(modmap);
  1716. }
  1717. void
  1718. updatesizehints(Client *c) {
  1719. long msize;
  1720. XSizeHints size;
  1721. if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
  1722. /* size is uninitialized, ensure that size.flags aren't used */
  1723. size.flags = PSize;
  1724. if(size.flags & PBaseSize) {
  1725. c->basew = size.base_width;
  1726. c->baseh = size.base_height;
  1727. }
  1728. else if(size.flags & PMinSize) {
  1729. c->basew = size.min_width;
  1730. c->baseh = size.min_height;
  1731. }
  1732. else
  1733. c->basew = c->baseh = 0;
  1734. if(size.flags & PResizeInc) {
  1735. c->incw = size.width_inc;
  1736. c->inch = size.height_inc;
  1737. }
  1738. else
  1739. c->incw = c->inch = 0;
  1740. if(size.flags & PMaxSize) {
  1741. c->maxw = size.max_width;
  1742. c->maxh = size.max_height;
  1743. }
  1744. else
  1745. c->maxw = c->maxh = 0;
  1746. if(size.flags & PMinSize) {
  1747. c->minw = size.min_width;
  1748. c->minh = size.min_height;
  1749. }
  1750. else if(size.flags & PBaseSize) {
  1751. c->minw = size.base_width;
  1752. c->minh = size.base_height;
  1753. }
  1754. else
  1755. c->minw = c->minh = 0;
  1756. if(size.flags & PAspect) {
  1757. c->mina = (float)size.min_aspect.y / size.min_aspect.x;
  1758. c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
  1759. }
  1760. else
  1761. c->maxa = c->mina = 0.0;
  1762. c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
  1763. && c->maxw == c->minw && c->maxh == c->minh);
  1764. }
  1765. void
  1766. updatetitle(Client *c) {
  1767. if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
  1768. gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
  1769. if(c->name[0] == '\0') /* hack to mark broken clients */
  1770. strcpy(c->name, broken);
  1771. }
  1772. void
  1773. updatestatus(void) {
  1774. if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
  1775. strcpy(stext, "dwm-"VERSION);
  1776. drawbar(selmon);
  1777. }
  1778. void
  1779. updatewmhints(Client *c) {
  1780. XWMHints *wmh;
  1781. if((wmh = XGetWMHints(dpy, c->win))) {
  1782. if(c == selmon->sel && wmh->flags & XUrgencyHint) {
  1783. wmh->flags &= ~XUrgencyHint;
  1784. XSetWMHints(dpy, c->win, wmh);
  1785. }
  1786. else
  1787. c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
  1788. XFree(wmh);
  1789. }
  1790. }
  1791. void
  1792. view(const Arg *arg) {
  1793. if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
  1794. return;
  1795. selmon->seltags ^= 1; /* toggle sel tagset */
  1796. if(arg->ui & TAGMASK)
  1797. selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
  1798. arrange(selmon);
  1799. }
  1800. Client *
  1801. wintoclient(Window w) {
  1802. Client *c;
  1803. Monitor *m;
  1804. for(m = mons; m; m = m->next)
  1805. for(c = m->clients; c; c = c->next)
  1806. if(c->win == w)
  1807. return c;
  1808. return NULL;
  1809. }
  1810. Monitor *
  1811. wintomon(Window w) {
  1812. int x, y;
  1813. Client *c;
  1814. Monitor *m;
  1815. if(w == root && getrootptr(&x, &y))
  1816. return ptrtomon(x, y);
  1817. for(m = mons; m; m = m->next)
  1818. if(w == m->barwin)
  1819. return m;
  1820. if((c = wintoclient(w)))
  1821. return c->mon;
  1822. return selmon;
  1823. }
  1824. /* There's no way to check accesses to destroyed windows, thus those cases are
  1825. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  1826. * default error handler, which may call exit. */
  1827. int
  1828. xerror(Display *dpy, XErrorEvent *ee) {
  1829. if(ee->error_code == BadWindow
  1830. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  1831. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  1832. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  1833. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  1834. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  1835. || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
  1836. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
  1837. || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
  1838. return 0;
  1839. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  1840. ee->request_code, ee->error_code);
  1841. return xerrorxlib(dpy, ee); /* may call exit */
  1842. }
  1843. int
  1844. xerrordummy(Display *dpy, XErrorEvent *ee) {
  1845. return 0;
  1846. }
  1847. /* Startup Error handler to check if another window manager
  1848. * is already running. */
  1849. int
  1850. xerrorstart(Display *dpy, XErrorEvent *ee) {
  1851. otherwm = True;
  1852. return -1;
  1853. }
  1854. void
  1855. zoom(const Arg *arg) {
  1856. Client *c = selmon->sel;
  1857. if(!selmon->lt[selmon->sellt]->arrange
  1858. || selmon->lt[selmon->sellt]->arrange == monocle
  1859. || (selmon->sel && selmon->sel->isfloating))
  1860. return;
  1861. if(c == nexttiled(selmon->clients))
  1862. if(!c || !(c = nexttiled(c->next)))
  1863. return;
  1864. detach(c);
  1865. attach(c);
  1866. focus(c);
  1867. arrange(c->mon);
  1868. }
  1869. int
  1870. main(int argc, char *argv[]) {
  1871. if(argc == 2 && !strcmp("-v", argv[1]))
  1872. die("dwm-"VERSION", © 2006-2010 dwm engineers, see LICENSE for details\n");
  1873. else if(argc != 1)
  1874. die("usage: dwm [-v]\n");
  1875. if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
  1876. fputs("warning: no locale support\n", stderr);
  1877. if(!(dpy = XOpenDisplay(NULL)))
  1878. die("dwm: cannot open display\n");
  1879. checkotherwm();
  1880. setup();
  1881. scan();
  1882. run();
  1883. cleanup();
  1884. XCloseDisplay(dpy);
  1885. return 0;
  1886. }