Configuration of dwm for Mac Computers
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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. * Calls to fetch an X event from the event queue are blocking. Due reading
  10. * status text from standard input, a select()-driven main loop has been
  11. * implemented which selects for reads on the X connection and STDIN_FILENO to
  12. * handle all data smoothly. The event handlers of dwm are organized in an
  13. * array which is accessed whenever a new event has been fetched. This allows
  14. * event dispatching in O(1) time.
  15. *
  16. * Each child of the root window is called a client, except windows which have
  17. * set the override_redirect flag. Clients are organized in a global
  18. * doubly-linked client list, the focus history is remembered through a global
  19. * stack list. Each client contains an array of Bools of the same size as the
  20. * global tags array to indicate the tags of a client.
  21. *
  22. * Keys and tagging rules are organized as arrays and defined in config.h.
  23. *
  24. * To understand everything else, start reading main().
  25. */
  26. #include <errno.h>
  27. #include <locale.h>
  28. #include <stdarg.h>
  29. #include <stdio.h>
  30. #include <stdlib.h>
  31. #include <string.h>
  32. #include <unistd.h>
  33. #include <sys/select.h>
  34. #include <sys/types.h>
  35. #include <sys/wait.h>
  36. #include <X11/cursorfont.h>
  37. #include <X11/keysym.h>
  38. #include <X11/Xatom.h>
  39. #include <X11/Xlib.h>
  40. #include <X11/Xproto.h>
  41. #include <X11/Xutil.h>
  42. /* macros */
  43. #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
  44. #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
  45. #define LENGTH(x) (sizeof x / sizeof x[0])
  46. #define MAXTAGLEN 16
  47. #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
  48. /* enums */
  49. enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
  50. enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
  51. enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
  52. enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
  53. /* typedefs */
  54. typedef struct Client Client;
  55. struct Client {
  56. char name[256];
  57. int x, y, w, h;
  58. int basew, baseh, incw, inch, maxw, maxh, minw, minh;
  59. int minax, maxax, minay, maxay;
  60. long flags;
  61. unsigned int border, oldborder;
  62. Bool isbanned, isfixed, isfloating, isurgent;
  63. Bool *tags;
  64. Client *next;
  65. Client *prev;
  66. Client *snext;
  67. Window win;
  68. };
  69. typedef struct {
  70. int x, y, w, h;
  71. unsigned long norm[ColLast];
  72. unsigned long sel[ColLast];
  73. Drawable drawable;
  74. GC gc;
  75. struct {
  76. int ascent;
  77. int descent;
  78. int height;
  79. XFontSet set;
  80. XFontStruct *xfont;
  81. } font;
  82. } DC; /* draw context */
  83. typedef struct {
  84. unsigned long mod;
  85. KeySym keysym;
  86. void (*func)(const char *arg);
  87. const char *arg;
  88. } Key;
  89. typedef struct {
  90. const char *symbol;
  91. void (*arrange)(void);
  92. Bool isfloating;
  93. } Layout;
  94. typedef struct {
  95. const char *prop;
  96. const char *tag;
  97. Bool isfloating;
  98. } Rule;
  99. /* function declarations */
  100. void applyrules(Client *c);
  101. void arrange(void);
  102. void attach(Client *c);
  103. void attachstack(Client *c);
  104. void ban(Client *c);
  105. void buttonpress(XEvent *e);
  106. void checkotherwm(void);
  107. void cleanup(void);
  108. void configure(Client *c);
  109. void configurenotify(XEvent *e);
  110. void configurerequest(XEvent *e);
  111. unsigned int counttiled(void);
  112. void destroynotify(XEvent *e);
  113. void detach(Client *c);
  114. void detachstack(Client *c);
  115. void drawbar(void);
  116. void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
  117. void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
  118. void *emallocz(unsigned int size);
  119. void enternotify(XEvent *e);
  120. void eprint(const char *errstr, ...);
  121. void expose(XEvent *e);
  122. void floating(void); /* default floating layout */
  123. void focus(Client *c);
  124. void focusin(XEvent *e);
  125. void focusnext(const char *arg);
  126. void focusprev(const char *arg);
  127. Client *getclient(Window w);
  128. unsigned long getcolor(const char *colstr);
  129. long getstate(Window w);
  130. Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
  131. void grabbuttons(Client *c, Bool focused);
  132. void grabkeys(void);
  133. unsigned int idxoftag(const char *t);
  134. void initfont(const char *fontstr);
  135. Bool isoccupied(unsigned int t);
  136. Bool isprotodel(Client *c);
  137. Bool isurgent(unsigned int t);
  138. Bool isvisible(Client *c);
  139. void keypress(XEvent *e);
  140. void killclient(const char *arg);
  141. void manage(Window w, XWindowAttributes *wa);
  142. void mappingnotify(XEvent *e);
  143. void maprequest(XEvent *e);
  144. void monocle(void);
  145. void movemouse(Client *c);
  146. Client *nexttiled(Client *c);
  147. void propertynotify(XEvent *e);
  148. void quit(const char *arg);
  149. void reapply(const char *arg);
  150. void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
  151. void resizemouse(Client *c);
  152. void restack(void);
  153. void run(void);
  154. void scan(void);
  155. void setclientstate(Client *c, long state);
  156. void setdefaultgeoms(void);
  157. void setlayout(const char *arg);
  158. void setup(void);
  159. void spawn(const char *arg);
  160. void tag(const char *arg);
  161. unsigned int textnw(const char *text, unsigned int len);
  162. unsigned int textw(const char *text);
  163. void tileh(void);
  164. void tilehstack(unsigned int n);
  165. Client *tilemaster(unsigned int n);
  166. void tileresize(Client *c, int x, int y, int w, int h);
  167. void tilev(void);
  168. void tilevstack(unsigned int n);
  169. void togglefloating(const char *arg);
  170. void toggletag(const char *arg);
  171. void toggleview(const char *arg);
  172. void unban(Client *c);
  173. void unmanage(Client *c);
  174. void unmapnotify(XEvent *e);
  175. void updatebarpos(void);
  176. void updatesizehints(Client *c);
  177. void updatetitle(Client *c);
  178. void updatewmhints(Client *c);
  179. void view(const char *arg);
  180. void viewprevtag(const char *arg); /* views previous selected tags */
  181. int xerror(Display *dpy, XErrorEvent *ee);
  182. int xerrordummy(Display *dpy, XErrorEvent *ee);
  183. int xerrorstart(Display *dpy, XErrorEvent *ee);
  184. void zoom(const char *arg);
  185. /* variables */
  186. char stext[256], buf[256];
  187. int screen, sx, sy, sw, sh;
  188. int (*xerrorxlib)(Display *, XErrorEvent *);
  189. int bx, by, bw, bh, blw, mx, my, mw, mh, mox, moy, mow, moh, tx, ty, tw, th, wx, wy, ww, wh;
  190. unsigned int numlockmask = 0;
  191. void (*handler[LASTEvent]) (XEvent *) = {
  192. [ButtonPress] = buttonpress,
  193. [ConfigureRequest] = configurerequest,
  194. [ConfigureNotify] = configurenotify,
  195. [DestroyNotify] = destroynotify,
  196. [EnterNotify] = enternotify,
  197. [Expose] = expose,
  198. [FocusIn] = focusin,
  199. [KeyPress] = keypress,
  200. [MappingNotify] = mappingnotify,
  201. [MapRequest] = maprequest,
  202. [PropertyNotify] = propertynotify,
  203. [UnmapNotify] = unmapnotify
  204. };
  205. Atom wmatom[WMLast], netatom[NetLast];
  206. Bool otherwm, readin;
  207. Bool running = True;
  208. Bool *prevtags;
  209. Bool *seltags;
  210. Client *clients = NULL;
  211. Client *sel = NULL;
  212. Client *stack = NULL;
  213. Cursor cursor[CurLast];
  214. Display *dpy;
  215. DC dc = {0};
  216. Layout *lt = NULL;
  217. Window root, barwin;
  218. void (*setgeoms)(void) = setdefaultgeoms;
  219. /* configuration, allows nested code to access above variables */
  220. #include "config.h"
  221. #define TAGSZ (LENGTH(tags) * sizeof(Bool))
  222. static Bool tmp[LENGTH(tags)];
  223. /* function implementations */
  224. void
  225. applyrules(Client *c) {
  226. unsigned int i;
  227. Bool matched = False;
  228. Rule *r;
  229. XClassHint ch = { 0 };
  230. /* rule matching */
  231. XGetClassHint(dpy, c->win, &ch);
  232. for(i = 0; i < LENGTH(rules); i++) {
  233. r = &rules[i];
  234. if(strstr(c->name, r->prop)
  235. || (ch.res_class && strstr(ch.res_class, r->prop))
  236. || (ch.res_name && strstr(ch.res_name, r->prop)))
  237. {
  238. c->isfloating = r->isfloating;
  239. if(r->tag) {
  240. c->tags[idxoftag(r->tag)] = True;
  241. matched = True;
  242. }
  243. }
  244. }
  245. if(ch.res_class)
  246. XFree(ch.res_class);
  247. if(ch.res_name)
  248. XFree(ch.res_name);
  249. if(!matched)
  250. memcpy(c->tags, seltags, TAGSZ);
  251. }
  252. void
  253. arrange(void) {
  254. Client *c;
  255. for(c = clients; c; c = c->next)
  256. if(isvisible(c))
  257. unban(c);
  258. else
  259. ban(c);
  260. focus(NULL);
  261. lt->arrange();
  262. restack();
  263. }
  264. void
  265. attach(Client *c) {
  266. if(clients)
  267. clients->prev = c;
  268. c->next = clients;
  269. clients = c;
  270. }
  271. void
  272. attachstack(Client *c) {
  273. c->snext = stack;
  274. stack = c;
  275. }
  276. void
  277. ban(Client *c) {
  278. if(c->isbanned)
  279. return;
  280. XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  281. c->isbanned = True;
  282. }
  283. void
  284. buttonpress(XEvent *e) {
  285. unsigned int i, x;
  286. Client *c;
  287. XButtonPressedEvent *ev = &e->xbutton;
  288. if(ev->window == barwin) {
  289. x = 0;
  290. for(i = 0; i < LENGTH(tags); i++) {
  291. x += textw(tags[i]);
  292. if(ev->x < x) {
  293. if(ev->button == Button1) {
  294. if(ev->state & MODKEY)
  295. tag(tags[i]);
  296. else
  297. view(tags[i]);
  298. }
  299. else if(ev->button == Button3) {
  300. if(ev->state & MODKEY)
  301. toggletag(tags[i]);
  302. else
  303. toggleview(tags[i]);
  304. }
  305. return;
  306. }
  307. }
  308. }
  309. else if((c = getclient(ev->window))) {
  310. focus(c);
  311. if(CLEANMASK(ev->state) != MODKEY)
  312. return;
  313. if(ev->button == Button1) {
  314. restack();
  315. movemouse(c);
  316. }
  317. else if(ev->button == Button2) {
  318. if((floating != lt->arrange) && c->isfloating)
  319. togglefloating(NULL);
  320. else
  321. zoom(NULL);
  322. }
  323. else if(ev->button == Button3 && !c->isfixed) {
  324. restack();
  325. resizemouse(c);
  326. }
  327. }
  328. }
  329. void
  330. checkotherwm(void) {
  331. otherwm = False;
  332. XSetErrorHandler(xerrorstart);
  333. /* this causes an error if some other window manager is running */
  334. XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
  335. XSync(dpy, False);
  336. if(otherwm)
  337. eprint("dwm: another window manager is already running\n");
  338. XSync(dpy, False);
  339. XSetErrorHandler(NULL);
  340. xerrorxlib = XSetErrorHandler(xerror);
  341. XSync(dpy, False);
  342. }
  343. void
  344. cleanup(void) {
  345. close(STDIN_FILENO);
  346. while(stack) {
  347. unban(stack);
  348. unmanage(stack);
  349. }
  350. if(dc.font.set)
  351. XFreeFontSet(dpy, dc.font.set);
  352. else
  353. XFreeFont(dpy, dc.font.xfont);
  354. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  355. XFreePixmap(dpy, dc.drawable);
  356. XFreeGC(dpy, dc.gc);
  357. XFreeCursor(dpy, cursor[CurNormal]);
  358. XFreeCursor(dpy, cursor[CurResize]);
  359. XFreeCursor(dpy, cursor[CurMove]);
  360. XDestroyWindow(dpy, barwin);
  361. XSync(dpy, False);
  362. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  363. }
  364. void
  365. configure(Client *c) {
  366. XConfigureEvent ce;
  367. ce.type = ConfigureNotify;
  368. ce.display = dpy;
  369. ce.event = c->win;
  370. ce.window = c->win;
  371. ce.x = c->x;
  372. ce.y = c->y;
  373. ce.width = c->w;
  374. ce.height = c->h;
  375. ce.border_width = c->border;
  376. ce.above = None;
  377. ce.override_redirect = False;
  378. XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
  379. }
  380. void
  381. configurenotify(XEvent *e) {
  382. XConfigureEvent *ev = &e->xconfigure;
  383. if(ev->window == root && (ev->width != sw || ev->height != sh)) {
  384. setgeoms();
  385. updatebarpos();
  386. arrange();
  387. }
  388. }
  389. void
  390. configurerequest(XEvent *e) {
  391. Client *c;
  392. XConfigureRequestEvent *ev = &e->xconfigurerequest;
  393. XWindowChanges wc;
  394. if((c = getclient(ev->window))) {
  395. if(ev->value_mask & CWBorderWidth)
  396. c->border = ev->border_width;
  397. if(c->isfixed || c->isfloating || lt->isfloating) {
  398. if(ev->value_mask & CWX)
  399. c->x = sx + ev->x;
  400. if(ev->value_mask & CWY)
  401. c->y = sy + ev->y;
  402. if(ev->value_mask & CWWidth)
  403. c->w = ev->width;
  404. if(ev->value_mask & CWHeight)
  405. c->h = ev->height;
  406. if((c->x - sx + c->w) > sw && c->isfloating)
  407. c->x = sx + (sw / 2 - c->w / 2); /* center in x direction */
  408. if((c->y - sy + c->h) > sh && c->isfloating)
  409. c->y = sy + (sh / 2 - c->h / 2); /* center in y direction */
  410. if((ev->value_mask & (CWX|CWY))
  411. && !(ev->value_mask & (CWWidth|CWHeight)))
  412. configure(c);
  413. if(isvisible(c))
  414. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  415. }
  416. else
  417. configure(c);
  418. }
  419. else {
  420. wc.x = ev->x;
  421. wc.y = ev->y;
  422. wc.width = ev->width;
  423. wc.height = ev->height;
  424. wc.border_width = ev->border_width;
  425. wc.sibling = ev->above;
  426. wc.stack_mode = ev->detail;
  427. XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
  428. }
  429. XSync(dpy, False);
  430. }
  431. unsigned int
  432. counttiled(void) {
  433. unsigned int n;
  434. Client *c;
  435. for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next), n++);
  436. return n;
  437. }
  438. void
  439. destroynotify(XEvent *e) {
  440. Client *c;
  441. XDestroyWindowEvent *ev = &e->xdestroywindow;
  442. if((c = getclient(ev->window)))
  443. unmanage(c);
  444. }
  445. void
  446. detach(Client *c) {
  447. if(c->prev)
  448. c->prev->next = c->next;
  449. if(c->next)
  450. c->next->prev = c->prev;
  451. if(c == clients)
  452. clients = c->next;
  453. c->next = c->prev = NULL;
  454. }
  455. void
  456. detachstack(Client *c) {
  457. Client **tc;
  458. for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
  459. *tc = c->snext;
  460. }
  461. void
  462. drawbar(void) {
  463. int i, x;
  464. Client *c;
  465. dc.x = 0;
  466. for(c = stack; c && !isvisible(c); c = c->snext);
  467. for(i = 0; i < LENGTH(tags); i++) {
  468. dc.w = textw(tags[i]);
  469. if(seltags[i]) {
  470. drawtext(tags[i], dc.sel, isurgent(i));
  471. drawsquare(c && c->tags[i], isoccupied(i), isurgent(i), dc.sel);
  472. }
  473. else {
  474. drawtext(tags[i], dc.norm, isurgent(i));
  475. drawsquare(c && c->tags[i], isoccupied(i), isurgent(i), dc.norm);
  476. }
  477. dc.x += dc.w;
  478. }
  479. dc.w = blw;
  480. drawtext(lt->symbol, dc.norm, False);
  481. x = dc.x + dc.w;
  482. dc.w = textw(stext);
  483. dc.x = bw - dc.w;
  484. if(dc.x < x) {
  485. dc.x = x;
  486. dc.w = bw - x;
  487. }
  488. drawtext(stext, dc.norm, False);
  489. if((dc.w = dc.x - x) > bh) {
  490. dc.x = x;
  491. if(c) {
  492. drawtext(c->name, dc.sel, False);
  493. drawsquare(False, c->isfloating, False, dc.sel);
  494. }
  495. else
  496. drawtext(NULL, dc.norm, False);
  497. }
  498. XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
  499. XSync(dpy, False);
  500. }
  501. void
  502. drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
  503. int x;
  504. XGCValues gcv;
  505. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  506. gcv.foreground = col[invert ? ColBG : ColFG];
  507. XChangeGC(dpy, dc.gc, GCForeground, &gcv);
  508. x = (dc.font.ascent + dc.font.descent + 2) / 4;
  509. r.x = dc.x + 1;
  510. r.y = dc.y + 1;
  511. if(filled) {
  512. r.width = r.height = x + 1;
  513. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  514. }
  515. else if(empty) {
  516. r.width = r.height = x;
  517. XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  518. }
  519. }
  520. void
  521. drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
  522. int x, y, w, h;
  523. unsigned int len, olen;
  524. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  525. XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
  526. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  527. if(!text)
  528. return;
  529. w = 0;
  530. olen = len = strlen(text);
  531. if(len >= sizeof buf)
  532. len = sizeof buf - 1;
  533. memcpy(buf, text, len);
  534. buf[len] = 0;
  535. h = dc.font.ascent + dc.font.descent;
  536. y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
  537. x = dc.x + (h / 2);
  538. /* shorten text if necessary */
  539. while(len && (w = textnw(buf, len)) > dc.w - h)
  540. buf[--len] = 0;
  541. if(len < olen) {
  542. if(len > 1)
  543. buf[len - 1] = '.';
  544. if(len > 2)
  545. buf[len - 2] = '.';
  546. if(len > 3)
  547. buf[len - 3] = '.';
  548. }
  549. if(w > dc.w)
  550. return; /* too long */
  551. XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
  552. if(dc.font.set)
  553. XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
  554. else
  555. XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
  556. }
  557. void *
  558. emallocz(unsigned int size) {
  559. void *res = calloc(1, size);
  560. if(!res)
  561. eprint("fatal: could not malloc() %u bytes\n", size);
  562. return res;
  563. }
  564. void
  565. enternotify(XEvent *e) {
  566. Client *c;
  567. XCrossingEvent *ev = &e->xcrossing;
  568. if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
  569. return;
  570. if((c = getclient(ev->window)))
  571. focus(c);
  572. else
  573. focus(NULL);
  574. }
  575. void
  576. eprint(const char *errstr, ...) {
  577. va_list ap;
  578. va_start(ap, errstr);
  579. vfprintf(stderr, errstr, ap);
  580. va_end(ap);
  581. exit(EXIT_FAILURE);
  582. }
  583. void
  584. expose(XEvent *e) {
  585. XExposeEvent *ev = &e->xexpose;
  586. if(ev->count == 0 && (ev->window == barwin))
  587. drawbar();
  588. }
  589. void
  590. floating(void) { /* default floating layout */
  591. Client *c;
  592. for(c = clients; c; c = c->next)
  593. if(isvisible(c))
  594. resize(c, c->x, c->y, c->w, c->h, True);
  595. }
  596. void
  597. focus(Client *c) {
  598. if(!c || (c && !isvisible(c)))
  599. for(c = stack; c && !isvisible(c); c = c->snext);
  600. if(sel && sel != c) {
  601. grabbuttons(sel, False);
  602. XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
  603. }
  604. if(c) {
  605. detachstack(c);
  606. attachstack(c);
  607. grabbuttons(c, True);
  608. }
  609. sel = c;
  610. if(c) {
  611. XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
  612. XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  613. }
  614. else
  615. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  616. drawbar();
  617. }
  618. void
  619. focusin(XEvent *e) { /* there are some broken focus acquiring clients */
  620. XFocusChangeEvent *ev = &e->xfocus;
  621. if(sel && ev->window != sel->win)
  622. XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
  623. }
  624. void
  625. focusnext(const char *arg) {
  626. Client *c;
  627. if(!sel)
  628. return;
  629. for(c = sel->next; c && !isvisible(c); c = c->next);
  630. if(!c)
  631. for(c = clients; c && !isvisible(c); c = c->next);
  632. if(c) {
  633. focus(c);
  634. restack();
  635. }
  636. }
  637. void
  638. focusprev(const char *arg) {
  639. Client *c;
  640. if(!sel)
  641. return;
  642. for(c = sel->prev; c && !isvisible(c); c = c->prev);
  643. if(!c) {
  644. for(c = clients; c && c->next; c = c->next);
  645. for(; c && !isvisible(c); c = c->prev);
  646. }
  647. if(c) {
  648. focus(c);
  649. restack();
  650. }
  651. }
  652. Client *
  653. getclient(Window w) {
  654. Client *c;
  655. for(c = clients; c && c->win != w; c = c->next);
  656. return c;
  657. }
  658. unsigned long
  659. getcolor(const char *colstr) {
  660. Colormap cmap = DefaultColormap(dpy, screen);
  661. XColor color;
  662. if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
  663. eprint("error, cannot allocate color '%s'\n", colstr);
  664. return color.pixel;
  665. }
  666. long
  667. getstate(Window w) {
  668. int format, status;
  669. long result = -1;
  670. unsigned char *p = NULL;
  671. unsigned long n, extra;
  672. Atom real;
  673. status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
  674. &real, &format, &n, &extra, (unsigned char **)&p);
  675. if(status != Success)
  676. return -1;
  677. if(n != 0)
  678. result = *p;
  679. XFree(p);
  680. return result;
  681. }
  682. Bool
  683. gettextprop(Window w, Atom atom, char *text, unsigned int size) {
  684. char **list = NULL;
  685. int n;
  686. XTextProperty name;
  687. if(!text || size == 0)
  688. return False;
  689. text[0] = '\0';
  690. XGetTextProperty(dpy, w, &name, atom);
  691. if(!name.nitems)
  692. return False;
  693. if(name.encoding == XA_STRING)
  694. strncpy(text, (char *)name.value, size - 1);
  695. else {
  696. if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
  697. && n > 0 && *list) {
  698. strncpy(text, *list, size - 1);
  699. XFreeStringList(list);
  700. }
  701. }
  702. text[size - 1] = '\0';
  703. XFree(name.value);
  704. return True;
  705. }
  706. void
  707. grabbuttons(Client *c, Bool focused) {
  708. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  709. if(focused) {
  710. XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
  711. GrabModeAsync, GrabModeSync, None, None);
  712. XGrabButton(dpy, Button1, MODKEY|LockMask, c->win, False, BUTTONMASK,
  713. GrabModeAsync, GrabModeSync, None, None);
  714. XGrabButton(dpy, Button1, MODKEY|numlockmask, c->win, False, BUTTONMASK,
  715. GrabModeAsync, GrabModeSync, None, None);
  716. XGrabButton(dpy, Button1, MODKEY|numlockmask|LockMask, c->win, False, BUTTONMASK,
  717. GrabModeAsync, GrabModeSync, None, None);
  718. XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
  719. GrabModeAsync, GrabModeSync, None, None);
  720. XGrabButton(dpy, Button2, MODKEY|LockMask, c->win, False, BUTTONMASK,
  721. GrabModeAsync, GrabModeSync, None, None);
  722. XGrabButton(dpy, Button2, MODKEY|numlockmask, c->win, False, BUTTONMASK,
  723. GrabModeAsync, GrabModeSync, None, None);
  724. XGrabButton(dpy, Button2, MODKEY|numlockmask|LockMask, c->win, False, BUTTONMASK,
  725. GrabModeAsync, GrabModeSync, None, None);
  726. XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
  727. GrabModeAsync, GrabModeSync, None, None);
  728. XGrabButton(dpy, Button3, MODKEY|LockMask, c->win, False, BUTTONMASK,
  729. GrabModeAsync, GrabModeSync, None, None);
  730. XGrabButton(dpy, Button3, MODKEY|numlockmask, c->win, False, BUTTONMASK,
  731. GrabModeAsync, GrabModeSync, None, None);
  732. XGrabButton(dpy, Button3, MODKEY|numlockmask|LockMask, c->win, False, BUTTONMASK,
  733. GrabModeAsync, GrabModeSync, None, None);
  734. }
  735. else
  736. XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
  737. GrabModeAsync, GrabModeSync, None, None);
  738. }
  739. void
  740. grabkeys(void) {
  741. unsigned int i, j;
  742. KeyCode code;
  743. XModifierKeymap *modmap;
  744. /* init modifier map */
  745. modmap = XGetModifierMapping(dpy);
  746. for(i = 0; i < 8; i++)
  747. for(j = 0; j < modmap->max_keypermod; j++) {
  748. if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
  749. numlockmask = (1 << i);
  750. }
  751. XFreeModifiermap(modmap);
  752. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  753. for(i = 0; i < LENGTH(keys); i++) {
  754. code = XKeysymToKeycode(dpy, keys[i].keysym);
  755. XGrabKey(dpy, code, keys[i].mod, root, True,
  756. GrabModeAsync, GrabModeAsync);
  757. XGrabKey(dpy, code, keys[i].mod|LockMask, root, True,
  758. GrabModeAsync, GrabModeAsync);
  759. XGrabKey(dpy, code, keys[i].mod|numlockmask, root, True,
  760. GrabModeAsync, GrabModeAsync);
  761. XGrabKey(dpy, code, keys[i].mod|numlockmask|LockMask, root, True,
  762. GrabModeAsync, GrabModeAsync);
  763. }
  764. }
  765. unsigned int
  766. idxoftag(const char *t) {
  767. unsigned int i;
  768. for(i = 0; (i < LENGTH(tags)) && (tags[i] != t); i++);
  769. return (i < LENGTH(tags)) ? i : 0;
  770. }
  771. void
  772. initfont(const char *fontstr) {
  773. char *def, **missing;
  774. int i, n;
  775. missing = NULL;
  776. if(dc.font.set)
  777. XFreeFontSet(dpy, dc.font.set);
  778. dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
  779. if(missing) {
  780. while(n--)
  781. fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
  782. XFreeStringList(missing);
  783. }
  784. if(dc.font.set) {
  785. XFontSetExtents *font_extents;
  786. XFontStruct **xfonts;
  787. char **font_names;
  788. dc.font.ascent = dc.font.descent = 0;
  789. font_extents = XExtentsOfFontSet(dc.font.set);
  790. n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
  791. for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
  792. if(dc.font.ascent < (*xfonts)->ascent)
  793. dc.font.ascent = (*xfonts)->ascent;
  794. if(dc.font.descent < (*xfonts)->descent)
  795. dc.font.descent = (*xfonts)->descent;
  796. xfonts++;
  797. }
  798. }
  799. else {
  800. if(dc.font.xfont)
  801. XFreeFont(dpy, dc.font.xfont);
  802. dc.font.xfont = NULL;
  803. if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
  804. && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
  805. eprint("error, cannot load font: '%s'\n", fontstr);
  806. dc.font.ascent = dc.font.xfont->ascent;
  807. dc.font.descent = dc.font.xfont->descent;
  808. }
  809. dc.font.height = dc.font.ascent + dc.font.descent;
  810. }
  811. Bool
  812. isoccupied(unsigned int t) {
  813. Client *c;
  814. for(c = clients; c; c = c->next)
  815. if(c->tags[t])
  816. return True;
  817. return False;
  818. }
  819. Bool
  820. isprotodel(Client *c) {
  821. int i, n;
  822. Atom *protocols;
  823. Bool ret = False;
  824. if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
  825. for(i = 0; !ret && i < n; i++)
  826. if(protocols[i] == wmatom[WMDelete])
  827. ret = True;
  828. XFree(protocols);
  829. }
  830. return ret;
  831. }
  832. Bool
  833. isurgent(unsigned int t) {
  834. Client *c;
  835. for(c = clients; c; c = c->next)
  836. if(c->isurgent && c->tags[t])
  837. return True;
  838. return False;
  839. }
  840. Bool
  841. isvisible(Client *c) {
  842. unsigned int i;
  843. for(i = 0; i < LENGTH(tags); i++)
  844. if(c->tags[i] && seltags[i])
  845. return True;
  846. return False;
  847. }
  848. void
  849. keypress(XEvent *e) {
  850. unsigned int i;
  851. KeySym keysym;
  852. XKeyEvent *ev;
  853. ev = &e->xkey;
  854. keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
  855. for(i = 0; i < LENGTH(keys); i++)
  856. if(keysym == keys[i].keysym
  857. && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
  858. {
  859. if(keys[i].func)
  860. keys[i].func(keys[i].arg);
  861. }
  862. }
  863. void
  864. killclient(const char *arg) {
  865. XEvent ev;
  866. if(!sel)
  867. return;
  868. if(isprotodel(sel)) {
  869. ev.type = ClientMessage;
  870. ev.xclient.window = sel->win;
  871. ev.xclient.message_type = wmatom[WMProtocols];
  872. ev.xclient.format = 32;
  873. ev.xclient.data.l[0] = wmatom[WMDelete];
  874. ev.xclient.data.l[1] = CurrentTime;
  875. XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
  876. }
  877. else
  878. XKillClient(dpy, sel->win);
  879. }
  880. void
  881. manage(Window w, XWindowAttributes *wa) {
  882. Client *c, *t = NULL;
  883. Status rettrans;
  884. Window trans;
  885. XWindowChanges wc;
  886. c = emallocz(sizeof(Client));
  887. c->tags = emallocz(TAGSZ);
  888. c->win = w;
  889. /* geometry */
  890. c->x = wa->x;
  891. c->y = wa->y;
  892. c->w = wa->width;
  893. c->h = wa->height;
  894. c->oldborder = wa->border_width;
  895. if(c->w == sw && c->h == sh) {
  896. c->x = sx;
  897. c->y = sy;
  898. c->border = wa->border_width;
  899. }
  900. else {
  901. if(c->x + c->w + 2 * c->border > wx + ww)
  902. c->x = wx + ww - c->w - 2 * c->border;
  903. if(c->y + c->h + 2 * c->border > wy + wh)
  904. c->y = wy + wh - c->h - 2 * c->border;
  905. if(c->x < wx)
  906. c->x = wx;
  907. if(c->y < wy)
  908. c->y = wy;
  909. c->border = BORDERPX;
  910. }
  911. wc.border_width = c->border;
  912. XConfigureWindow(dpy, w, CWBorderWidth, &wc);
  913. XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
  914. configure(c); /* propagates border_width, if size doesn't change */
  915. updatesizehints(c);
  916. XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
  917. grabbuttons(c, False);
  918. updatetitle(c);
  919. if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
  920. for(t = clients; t && t->win != trans; t = t->next);
  921. if(t)
  922. memcpy(c->tags, t->tags, TAGSZ);
  923. else
  924. applyrules(c);
  925. if(!c->isfloating)
  926. c->isfloating = (rettrans == Success) || c->isfixed;
  927. attach(c);
  928. attachstack(c);
  929. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
  930. ban(c);
  931. XMapWindow(dpy, c->win);
  932. setclientstate(c, NormalState);
  933. arrange();
  934. }
  935. void
  936. mappingnotify(XEvent *e) {
  937. XMappingEvent *ev = &e->xmapping;
  938. XRefreshKeyboardMapping(ev);
  939. if(ev->request == MappingKeyboard)
  940. grabkeys();
  941. }
  942. void
  943. maprequest(XEvent *e) {
  944. static XWindowAttributes wa;
  945. XMapRequestEvent *ev = &e->xmaprequest;
  946. if(!XGetWindowAttributes(dpy, ev->window, &wa))
  947. return;
  948. if(wa.override_redirect)
  949. return;
  950. if(!getclient(ev->window))
  951. manage(ev->window, &wa);
  952. }
  953. void
  954. monocle(void) {
  955. Client *c;
  956. for(c = clients; c; c = c->next)
  957. if(isvisible(c))
  958. resize(c, mox, moy, mow, moh, RESIZEHINTS);
  959. }
  960. void
  961. movemouse(Client *c) {
  962. int x1, y1, ocx, ocy, di, nx, ny;
  963. unsigned int dui;
  964. Window dummy;
  965. XEvent ev;
  966. ocx = nx = c->x;
  967. ocy = ny = c->y;
  968. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  969. None, cursor[CurMove], CurrentTime) != GrabSuccess)
  970. return;
  971. XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
  972. for(;;) {
  973. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  974. switch (ev.type) {
  975. case ButtonRelease:
  976. XUngrabPointer(dpy, CurrentTime);
  977. return;
  978. case ConfigureRequest:
  979. case Expose:
  980. case MapRequest:
  981. handler[ev.type](&ev);
  982. break;
  983. case MotionNotify:
  984. XSync(dpy, False);
  985. nx = ocx + (ev.xmotion.x - x1);
  986. ny = ocy + (ev.xmotion.y - y1);
  987. if(abs(wx - nx) < SNAP)
  988. nx = wx;
  989. else if(abs((wx + ww) - (nx + c->w + 2 * c->border)) < SNAP)
  990. nx = wx + ww - c->w - 2 * c->border;
  991. if(abs(wy - ny) < SNAP)
  992. ny = wy;
  993. else if(abs((wy + wh) - (ny + c->h + 2 * c->border)) < SNAP)
  994. ny = wy + wh - c->h - 2 * c->border;
  995. if(!c->isfloating && !lt->isfloating && (abs(nx - c->x) > SNAP || abs(ny - c->y) > SNAP))
  996. togglefloating(NULL);
  997. if((lt->isfloating) || c->isfloating)
  998. resize(c, nx, ny, c->w, c->h, False);
  999. break;
  1000. }
  1001. }
  1002. }
  1003. Client *
  1004. nexttiled(Client *c) {
  1005. for(; c && (c->isfloating || !isvisible(c)); c = c->next);
  1006. return c;
  1007. }
  1008. void
  1009. propertynotify(XEvent *e) {
  1010. Client *c;
  1011. Window trans;
  1012. XPropertyEvent *ev = &e->xproperty;
  1013. if(ev->state == PropertyDelete)
  1014. return; /* ignore */
  1015. if((c = getclient(ev->window))) {
  1016. switch (ev->atom) {
  1017. default: break;
  1018. case XA_WM_TRANSIENT_FOR:
  1019. XGetTransientForHint(dpy, c->win, &trans);
  1020. if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
  1021. arrange();
  1022. break;
  1023. case XA_WM_NORMAL_HINTS:
  1024. updatesizehints(c);
  1025. break;
  1026. case XA_WM_HINTS:
  1027. updatewmhints(c);
  1028. drawbar();
  1029. break;
  1030. }
  1031. if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
  1032. updatetitle(c);
  1033. if(c == sel)
  1034. drawbar();
  1035. }
  1036. }
  1037. }
  1038. void
  1039. quit(const char *arg) {
  1040. readin = running = False;
  1041. }
  1042. void
  1043. reapply(const char *arg) {
  1044. static Bool zerotags[LENGTH(tags)] = { 0 };
  1045. Client *c;
  1046. for(c = clients; c; c = c->next) {
  1047. memcpy(c->tags, zerotags, sizeof zerotags);
  1048. applyrules(c);
  1049. }
  1050. arrange();
  1051. }
  1052. void
  1053. resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
  1054. XWindowChanges wc;
  1055. if(sizehints) {
  1056. /* set minimum possible */
  1057. if (w < 1)
  1058. w = 1;
  1059. if (h < 1)
  1060. h = 1;
  1061. /* temporarily remove base dimensions */
  1062. w -= c->basew;
  1063. h -= c->baseh;
  1064. /* adjust for aspect limits */
  1065. if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
  1066. if (w * c->maxay > h * c->maxax)
  1067. w = h * c->maxax / c->maxay;
  1068. else if (w * c->minay < h * c->minax)
  1069. h = w * c->minay / c->minax;
  1070. }
  1071. /* adjust for increment value */
  1072. if(c->incw)
  1073. w -= w % c->incw;
  1074. if(c->inch)
  1075. h -= h % c->inch;
  1076. /* restore base dimensions */
  1077. w += c->basew;
  1078. h += c->baseh;
  1079. if(c->minw > 0 && w < c->minw)
  1080. w = c->minw;
  1081. if(c->minh > 0 && h < c->minh)
  1082. h = c->minh;
  1083. if(c->maxw > 0 && w > c->maxw)
  1084. w = c->maxw;
  1085. if(c->maxh > 0 && h > c->maxh)
  1086. h = c->maxh;
  1087. }
  1088. if(w <= 0 || h <= 0)
  1089. return;
  1090. if(x > sx + sw)
  1091. x = sw - w - 2 * c->border;
  1092. if(y > sy + sh)
  1093. y = sh - h - 2 * c->border;
  1094. if(x + w + 2 * c->border < sx)
  1095. x = sx;
  1096. if(y + h + 2 * c->border < sy)
  1097. y = sy;
  1098. if(c->x != x || c->y != y || c->w != w || c->h != h) {
  1099. c->x = wc.x = x;
  1100. c->y = wc.y = y;
  1101. c->w = wc.width = w;
  1102. c->h = wc.height = h;
  1103. wc.border_width = c->border;
  1104. XConfigureWindow(dpy, c->win,
  1105. CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
  1106. configure(c);
  1107. XSync(dpy, False);
  1108. }
  1109. }
  1110. void
  1111. resizemouse(Client *c) {
  1112. int ocx, ocy;
  1113. int nw, nh;
  1114. XEvent ev;
  1115. ocx = c->x;
  1116. ocy = c->y;
  1117. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1118. None, cursor[CurResize], CurrentTime) != GrabSuccess)
  1119. return;
  1120. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
  1121. for(;;) {
  1122. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask , &ev);
  1123. switch(ev.type) {
  1124. case ButtonRelease:
  1125. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
  1126. c->w + c->border - 1, c->h + c->border - 1);
  1127. XUngrabPointer(dpy, CurrentTime);
  1128. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1129. return;
  1130. case ConfigureRequest:
  1131. case Expose:
  1132. case MapRequest:
  1133. handler[ev.type](&ev);
  1134. break;
  1135. case MotionNotify:
  1136. XSync(dpy, False);
  1137. if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
  1138. nw = 1;
  1139. if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
  1140. nh = 1;
  1141. if(!c->isfloating && !lt->isfloating && (abs(nw - c->w) > SNAP || abs(nh - c->h) > SNAP))
  1142. togglefloating(NULL);
  1143. if((lt->isfloating) || c->isfloating)
  1144. resize(c, c->x, c->y, nw, nh, True);
  1145. break;
  1146. }
  1147. }
  1148. }
  1149. void
  1150. restack(void) {
  1151. Client *c;
  1152. XEvent ev;
  1153. XWindowChanges wc;
  1154. drawbar();
  1155. if(!sel)
  1156. return;
  1157. if(sel->isfloating || lt->isfloating)
  1158. XRaiseWindow(dpy, sel->win);
  1159. if(!lt->isfloating) {
  1160. wc.stack_mode = Below;
  1161. wc.sibling = barwin;
  1162. if(!sel->isfloating) {
  1163. XConfigureWindow(dpy, sel->win, CWSibling|CWStackMode, &wc);
  1164. wc.sibling = sel->win;
  1165. }
  1166. for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
  1167. if(c == sel)
  1168. continue;
  1169. XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
  1170. wc.sibling = c->win;
  1171. }
  1172. }
  1173. XSync(dpy, False);
  1174. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1175. }
  1176. void
  1177. run(void) {
  1178. char *p;
  1179. char sbuf[sizeof stext];
  1180. fd_set rd;
  1181. int r, xfd;
  1182. unsigned int len, offset;
  1183. XEvent ev;
  1184. /* main event loop, also reads status text from stdin */
  1185. XSync(dpy, False);
  1186. xfd = ConnectionNumber(dpy);
  1187. readin = True;
  1188. offset = 0;
  1189. len = sizeof stext - 1;
  1190. sbuf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
  1191. while(running) {
  1192. FD_ZERO(&rd);
  1193. if(readin)
  1194. FD_SET(STDIN_FILENO, &rd);
  1195. FD_SET(xfd, &rd);
  1196. if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
  1197. if(errno == EINTR)
  1198. continue;
  1199. eprint("select failed\n");
  1200. }
  1201. if(FD_ISSET(STDIN_FILENO, &rd)) {
  1202. switch((r = read(STDIN_FILENO, sbuf + offset, len - offset))) {
  1203. case -1:
  1204. strncpy(stext, strerror(errno), len);
  1205. readin = False;
  1206. break;
  1207. case 0:
  1208. strncpy(stext, "EOF", 4);
  1209. readin = False;
  1210. break;
  1211. default:
  1212. for(p = sbuf + offset; r > 0; p++, r--, offset++)
  1213. if(*p == '\n' || *p == '\0') {
  1214. *p = '\0';
  1215. strncpy(stext, sbuf, len);
  1216. p += r - 1; /* p is sbuf + offset + r - 1 */
  1217. for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
  1218. offset = r;
  1219. if(r)
  1220. memmove(sbuf, p - r + 1, r);
  1221. break;
  1222. }
  1223. break;
  1224. }
  1225. drawbar();
  1226. }
  1227. while(XPending(dpy)) {
  1228. XNextEvent(dpy, &ev);
  1229. if(handler[ev.type])
  1230. (handler[ev.type])(&ev); /* call handler */
  1231. }
  1232. }
  1233. }
  1234. void
  1235. scan(void) {
  1236. unsigned int i, num;
  1237. Window *wins, d1, d2;
  1238. XWindowAttributes wa;
  1239. wins = NULL;
  1240. if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  1241. for(i = 0; i < num; i++) {
  1242. if(!XGetWindowAttributes(dpy, wins[i], &wa)
  1243. || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  1244. continue;
  1245. if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
  1246. manage(wins[i], &wa);
  1247. }
  1248. for(i = 0; i < num; i++) { /* now the transients */
  1249. if(!XGetWindowAttributes(dpy, wins[i], &wa))
  1250. continue;
  1251. if(XGetTransientForHint(dpy, wins[i], &d1)
  1252. && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
  1253. manage(wins[i], &wa);
  1254. }
  1255. }
  1256. if(wins)
  1257. XFree(wins);
  1258. }
  1259. void
  1260. setclientstate(Client *c, long state) {
  1261. long data[] = {state, None};
  1262. XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
  1263. PropModeReplace, (unsigned char *)data, 2);
  1264. }
  1265. void
  1266. setdefaultgeoms(void) {
  1267. /* screen dimensions */
  1268. sx = 0;
  1269. sy = 0;
  1270. sw = DisplayWidth(dpy, screen);
  1271. sh = DisplayHeight(dpy, screen);
  1272. /* bar position */
  1273. bx = sx;
  1274. by = sy;
  1275. bw = sw;
  1276. bh = dc.font.height + 2;
  1277. /* window area */
  1278. wx = sx;
  1279. wy = sy + bh;
  1280. ww = sw;
  1281. wh = sh - bh;
  1282. /* master area */
  1283. mx = wx;
  1284. my = wy;
  1285. mw = ((float)sw) * 0.55;
  1286. mh = wh;
  1287. /* tile area */
  1288. tx = mx + mw;
  1289. ty = wy;
  1290. tw = ww - mw;
  1291. th = wh;
  1292. /* monocle area */
  1293. mox = wx;
  1294. moy = wy;
  1295. mow = ww;
  1296. moh = wh;
  1297. }
  1298. void
  1299. setlayout(const char *arg) {
  1300. static Layout *revert = 0;
  1301. unsigned int i;
  1302. if(!arg)
  1303. return;
  1304. for(i = 0; i < LENGTH(layouts); i++)
  1305. if(!strcmp(arg, layouts[i].symbol))
  1306. break;
  1307. if(i == LENGTH(layouts))
  1308. return;
  1309. if(revert && &layouts[i] == lt)
  1310. lt = revert;
  1311. else {
  1312. revert = lt;
  1313. lt = &layouts[i];
  1314. }
  1315. if(sel)
  1316. arrange();
  1317. else
  1318. drawbar();
  1319. }
  1320. void
  1321. setup(void) {
  1322. unsigned int i;
  1323. XSetWindowAttributes wa;
  1324. /* init screen */
  1325. screen = DefaultScreen(dpy);
  1326. root = RootWindow(dpy, screen);
  1327. initfont(FONT);
  1328. /* apply default geometries */
  1329. setgeoms();
  1330. /* init atoms */
  1331. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  1332. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  1333. wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
  1334. wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
  1335. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  1336. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  1337. /* init cursors */
  1338. wa.cursor = cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
  1339. cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
  1340. cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
  1341. /* init appearance */
  1342. dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
  1343. dc.norm[ColBG] = getcolor(NORMBGCOLOR);
  1344. dc.norm[ColFG] = getcolor(NORMFGCOLOR);
  1345. dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
  1346. dc.sel[ColBG] = getcolor(SELBGCOLOR);
  1347. dc.sel[ColFG] = getcolor(SELFGCOLOR);
  1348. initfont(FONT);
  1349. dc.h = bh;
  1350. dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
  1351. dc.gc = XCreateGC(dpy, root, 0, 0);
  1352. XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
  1353. if(!dc.font.set)
  1354. XSetFont(dpy, dc.gc, dc.font.xfont->fid);
  1355. /* init tags */
  1356. seltags = emallocz(TAGSZ);
  1357. prevtags = emallocz(TAGSZ);
  1358. seltags[0] = prevtags[0] = True;
  1359. /* init layouts */
  1360. lt = &layouts[0];
  1361. /* init bar */
  1362. for(blw = i = 0; i < LENGTH(layouts); i++) {
  1363. i = textw(layouts[i].symbol);
  1364. if(i > blw)
  1365. blw = i;
  1366. }
  1367. wa.override_redirect = 1;
  1368. wa.background_pixmap = ParentRelative;
  1369. wa.event_mask = ButtonPressMask|ExposureMask;
  1370. barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
  1371. CopyFromParent, DefaultVisual(dpy, screen),
  1372. CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
  1373. XDefineCursor(dpy, barwin, cursor[CurNormal]);
  1374. XMapRaised(dpy, barwin);
  1375. strcpy(stext, "dwm-"VERSION);
  1376. drawbar();
  1377. /* EWMH support per view */
  1378. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  1379. PropModeReplace, (unsigned char *) netatom, NetLast);
  1380. /* select for events */
  1381. wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
  1382. |EnterWindowMask|LeaveWindowMask|StructureNotifyMask;
  1383. XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
  1384. XSelectInput(dpy, root, wa.event_mask);
  1385. /* grab keys */
  1386. grabkeys();
  1387. }
  1388. void
  1389. spawn(const char *arg) {
  1390. static char *shell = NULL;
  1391. if(!shell && !(shell = getenv("SHELL")))
  1392. shell = "/bin/sh";
  1393. if(!arg)
  1394. return;
  1395. /* The double-fork construct avoids zombie processes and keeps the code
  1396. * clean from stupid signal handlers. */
  1397. if(fork() == 0) {
  1398. if(fork() == 0) {
  1399. if(dpy)
  1400. close(ConnectionNumber(dpy));
  1401. setsid();
  1402. execl(shell, shell, "-c", arg, (char *)NULL);
  1403. fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
  1404. perror(" failed");
  1405. }
  1406. exit(0);
  1407. }
  1408. wait(0);
  1409. }
  1410. void
  1411. tag(const char *arg) {
  1412. unsigned int i;
  1413. if(!sel)
  1414. return;
  1415. for(i = 0; i < LENGTH(tags); i++)
  1416. sel->tags[i] = (NULL == arg);
  1417. sel->tags[idxoftag(arg)] = True;
  1418. arrange();
  1419. }
  1420. unsigned int
  1421. textnw(const char *text, unsigned int len) {
  1422. XRectangle r;
  1423. if(dc.font.set) {
  1424. XmbTextExtents(dc.font.set, text, len, NULL, &r);
  1425. return r.width;
  1426. }
  1427. return XTextWidth(dc.font.xfont, text, len);
  1428. }
  1429. unsigned int
  1430. textw(const char *text) {
  1431. return textnw(text, strlen(text)) + dc.font.height;
  1432. }
  1433. void
  1434. tileh(void) {
  1435. int x, w;
  1436. unsigned int i, n = counttiled();
  1437. Client *c;
  1438. if(n == 0)
  1439. return;
  1440. c = tilemaster(n);
  1441. if(--n == 0)
  1442. return;
  1443. x = tx;
  1444. w = tw / n;
  1445. if(w < bh)
  1446. w = tw;
  1447. for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
  1448. if(i + 1 == n) /* remainder */
  1449. tileresize(c, x, ty, (tx + tw) - x - 2 * c->border, th - 2 * c->border);
  1450. else
  1451. tileresize(c, x, ty, w - 2 * c->border, th - 2 * c->border);
  1452. if(w != tw)
  1453. x = c->x + c->w + 2 * c->border;
  1454. }
  1455. }
  1456. Client *
  1457. tilemaster(unsigned int n) {
  1458. Client *c = nexttiled(clients);
  1459. if(n == 1)
  1460. tileresize(c, mox, moy, mow - 2 * c->border, moh - 2 * c->border);
  1461. else
  1462. tileresize(c, mx, my, mw - 2 * c->border, mh - 2 * c->border);
  1463. return c;
  1464. }
  1465. void
  1466. tileresize(Client *c, int x, int y, int w, int h) {
  1467. resize(c, x, y, w, h, RESIZEHINTS);
  1468. if((RESIZEHINTS) && ((c->h < bh) || (c->h > h) || (c->w < bh) || (c->w > w)))
  1469. /* client doesn't accept size constraints */
  1470. resize(c, x, y, w, h, False);
  1471. }
  1472. void
  1473. tilev(void) {
  1474. int y, h;
  1475. unsigned int i, n = counttiled();
  1476. Client *c;
  1477. if(n == 0)
  1478. return;
  1479. c = tilemaster(n);
  1480. if(--n == 0)
  1481. return;
  1482. y = ty;
  1483. h = th / n;
  1484. if(h < bh)
  1485. h = th;
  1486. for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
  1487. if(i + 1 == n) /* remainder */
  1488. tileresize(c, tx, y, tw - 2 * c->border, (ty + th) - y - 2 * c->border);
  1489. else
  1490. tileresize(c, tx, y, tw - 2 * c->border, h - 2 * c->border);
  1491. if(h != th)
  1492. y = c->y + c->h + 2 * c->border;
  1493. }
  1494. }
  1495. void
  1496. togglefloating(const char *arg) {
  1497. if(!sel)
  1498. return;
  1499. sel->isfloating = !sel->isfloating;
  1500. if(sel->isfloating)
  1501. resize(sel, sel->x, sel->y, sel->w, sel->h, True);
  1502. arrange();
  1503. }
  1504. void
  1505. toggletag(const char *arg) {
  1506. unsigned int i, j;
  1507. if(!sel)
  1508. return;
  1509. i = idxoftag(arg);
  1510. sel->tags[i] = !sel->tags[i];
  1511. for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
  1512. if(j == LENGTH(tags))
  1513. sel->tags[i] = True; /* at least one tag must be enabled */
  1514. arrange();
  1515. }
  1516. void
  1517. toggleview(const char *arg) {
  1518. unsigned int i, j;
  1519. i = idxoftag(arg);
  1520. seltags[i] = !seltags[i];
  1521. for(j = 0; j < LENGTH(tags) && !seltags[j]; j++);
  1522. if(j == LENGTH(tags))
  1523. seltags[i] = True; /* at least one tag must be viewed */
  1524. arrange();
  1525. }
  1526. void
  1527. unban(Client *c) {
  1528. if(!c->isbanned)
  1529. return;
  1530. XMoveWindow(dpy, c->win, c->x, c->y);
  1531. c->isbanned = False;
  1532. }
  1533. void
  1534. unmanage(Client *c) {
  1535. XWindowChanges wc;
  1536. wc.border_width = c->oldborder;
  1537. /* The server grab construct avoids race conditions. */
  1538. XGrabServer(dpy);
  1539. XSetErrorHandler(xerrordummy);
  1540. XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
  1541. detach(c);
  1542. detachstack(c);
  1543. if(sel == c)
  1544. focus(NULL);
  1545. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  1546. setclientstate(c, WithdrawnState);
  1547. free(c->tags);
  1548. free(c);
  1549. XSync(dpy, False);
  1550. XSetErrorHandler(xerror);
  1551. XUngrabServer(dpy);
  1552. arrange();
  1553. }
  1554. void
  1555. unmapnotify(XEvent *e) {
  1556. Client *c;
  1557. XUnmapEvent *ev = &e->xunmap;
  1558. if((c = getclient(ev->window)))
  1559. unmanage(c);
  1560. }
  1561. void
  1562. updatebarpos(void) {
  1563. if(dc.drawable != 0)
  1564. XFreePixmap(dpy, dc.drawable);
  1565. dc.drawable = XCreatePixmap(dpy, root, bw, bh, DefaultDepth(dpy, screen));
  1566. XMoveResizeWindow(dpy, barwin, bx, by, bw, bh);
  1567. }
  1568. void
  1569. updatesizehints(Client *c) {
  1570. long msize;
  1571. XSizeHints size;
  1572. if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
  1573. size.flags = PSize;
  1574. c->flags = size.flags;
  1575. if(c->flags & PBaseSize) {
  1576. c->basew = size.base_width;
  1577. c->baseh = size.base_height;
  1578. }
  1579. else if(c->flags & PMinSize) {
  1580. c->basew = size.min_width;
  1581. c->baseh = size.min_height;
  1582. }
  1583. else
  1584. c->basew = c->baseh = 0;
  1585. if(c->flags & PResizeInc) {
  1586. c->incw = size.width_inc;
  1587. c->inch = size.height_inc;
  1588. }
  1589. else
  1590. c->incw = c->inch = 0;
  1591. if(c->flags & PMaxSize) {
  1592. c->maxw = size.max_width;
  1593. c->maxh = size.max_height;
  1594. }
  1595. else
  1596. c->maxw = c->maxh = 0;
  1597. if(c->flags & PMinSize) {
  1598. c->minw = size.min_width;
  1599. c->minh = size.min_height;
  1600. }
  1601. else if(c->flags & PBaseSize) {
  1602. c->minw = size.base_width;
  1603. c->minh = size.base_height;
  1604. }
  1605. else
  1606. c->minw = c->minh = 0;
  1607. if(c->flags & PAspect) {
  1608. c->minax = size.min_aspect.x;
  1609. c->maxax = size.max_aspect.x;
  1610. c->minay = size.min_aspect.y;
  1611. c->maxay = size.max_aspect.y;
  1612. }
  1613. else
  1614. c->minax = c->maxax = c->minay = c->maxay = 0;
  1615. c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
  1616. && c->maxw == c->minw && c->maxh == c->minh);
  1617. }
  1618. void
  1619. updatetitle(Client *c) {
  1620. if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
  1621. gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
  1622. }
  1623. void
  1624. updatewmhints(Client *c) {
  1625. XWMHints *wmh;
  1626. if((wmh = XGetWMHints(dpy, c->win))) {
  1627. if(c == sel)
  1628. sel->isurgent = False;
  1629. else
  1630. c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
  1631. XFree(wmh);
  1632. }
  1633. }
  1634. void
  1635. view(const char *arg) {
  1636. unsigned int i;
  1637. for(i = 0; i < LENGTH(tags); i++)
  1638. tmp[i] = (NULL == arg);
  1639. tmp[idxoftag(arg)] = True;
  1640. if(memcmp(seltags, tmp, TAGSZ) != 0) {
  1641. memcpy(prevtags, seltags, TAGSZ);
  1642. memcpy(seltags, tmp, TAGSZ);
  1643. arrange();
  1644. }
  1645. }
  1646. void
  1647. viewprevtag(const char *arg) {
  1648. memcpy(tmp, seltags, TAGSZ);
  1649. memcpy(seltags, prevtags, TAGSZ);
  1650. memcpy(prevtags, tmp, TAGSZ);
  1651. arrange();
  1652. }
  1653. /* There's no way to check accesses to destroyed windows, thus those cases are
  1654. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  1655. * default error handler, which may call exit. */
  1656. int
  1657. xerror(Display *dpy, XErrorEvent *ee) {
  1658. if(ee->error_code == BadWindow
  1659. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  1660. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  1661. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  1662. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  1663. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  1664. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
  1665. || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
  1666. return 0;
  1667. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  1668. ee->request_code, ee->error_code);
  1669. return xerrorxlib(dpy, ee); /* may call exit */
  1670. }
  1671. int
  1672. xerrordummy(Display *dpy, XErrorEvent *ee) {
  1673. return 0;
  1674. }
  1675. /* Startup Error handler to check if another window manager
  1676. * is already running. */
  1677. int
  1678. xerrorstart(Display *dpy, XErrorEvent *ee) {
  1679. otherwm = True;
  1680. return -1;
  1681. }
  1682. void
  1683. zoom(const char *arg) {
  1684. Client *c = sel;
  1685. if(!sel || lt->isfloating || sel->isfloating)
  1686. return;
  1687. if(c == nexttiled(clients))
  1688. if(!(c = nexttiled(c->next)))
  1689. return;
  1690. detach(c);
  1691. attach(c);
  1692. focus(c);
  1693. arrange();
  1694. }
  1695. int
  1696. main(int argc, char *argv[]) {
  1697. if(argc == 2 && !strcmp("-v", argv[1]))
  1698. eprint("dwm-"VERSION", © 2006-2008 dwm engineers, see LICENSE for details\n");
  1699. else if(argc != 1)
  1700. eprint("usage: dwm [-v]\n");
  1701. setlocale(LC_CTYPE, "");
  1702. if(!(dpy = XOpenDisplay(0)))
  1703. eprint("dwm: cannot open display\n");
  1704. checkotherwm();
  1705. setup();
  1706. scan();
  1707. run();
  1708. cleanup();
  1709. XCloseDisplay(dpy);
  1710. return 0;
  1711. }