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. * 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 <regex.h>
  37. #include <X11/cursorfont.h>
  38. #include <X11/keysym.h>
  39. #include <X11/Xatom.h>
  40. #include <X11/Xlib.h>
  41. #include <X11/Xproto.h>
  42. #include <X11/Xutil.h>
  43. /* macros */
  44. #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
  45. #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
  46. #define LENGTH(x) (sizeof x / sizeof x[0])
  47. #define MAXTAGLEN 16
  48. #define MOUSEMASK (BUTTONMASK | PointerMotionMask)
  49. /* enums */
  50. enum { BarTop, BarBot, BarOff }; /* bar position */
  51. enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
  52. enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
  53. enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
  54. enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
  55. /* typedefs */
  56. typedef struct Client Client;
  57. struct Client {
  58. char name[256];
  59. int x, y, w, h;
  60. int rx, ry, rw, rh; /* revert geometry */
  61. int basew, baseh, incw, inch, maxw, maxh, minw, minh;
  62. int minax, maxax, minay, maxay;
  63. long flags;
  64. unsigned int border, oldborder;
  65. Bool isbanned, isfixed, ismax, isfloating, wasfloating;
  66. Bool *tags;
  67. Client *next;
  68. Client *prev;
  69. Client *snext;
  70. Window win;
  71. };
  72. typedef struct {
  73. int x, y, w, h;
  74. unsigned long norm[ColLast];
  75. unsigned long sel[ColLast];
  76. Drawable drawable;
  77. GC gc;
  78. struct {
  79. int ascent;
  80. int descent;
  81. int height;
  82. XFontSet set;
  83. XFontStruct *xfont;
  84. } font;
  85. } DC; /* draw context */
  86. typedef struct {
  87. unsigned long mod;
  88. KeySym keysym;
  89. void (*func)(const char *arg);
  90. const char *arg;
  91. } Key;
  92. typedef struct {
  93. const char *symbol;
  94. void (*arrange)(void);
  95. } Layout;
  96. typedef struct {
  97. const char *prop;
  98. const char *tags;
  99. Bool isfloating;
  100. } Rule;
  101. typedef struct {
  102. regex_t *propregex;
  103. regex_t *tagregex;
  104. } Regs;
  105. /* function declarations */
  106. void applyrules(Client *c);
  107. void arrange(void);
  108. void attach(Client *c);
  109. void attachstack(Client *c);
  110. void ban(Client *c);
  111. void buttonpress(XEvent *e);
  112. void checkotherwm(void);
  113. void cleanup(void);
  114. void compileregs(void);
  115. void configure(Client *c);
  116. void configurenotify(XEvent *e);
  117. void configurerequest(XEvent *e);
  118. void destroynotify(XEvent *e);
  119. void detach(Client *c);
  120. void detachstack(Client *c);
  121. void drawbar(void);
  122. void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
  123. void drawtext(const char *text, unsigned long col[ColLast]);
  124. void *emallocz(unsigned int size);
  125. void enternotify(XEvent *e);
  126. void eprint(const char *errstr, ...);
  127. void expose(XEvent *e);
  128. void floating(void); /* default floating layout */
  129. void focus(Client *c);
  130. void focusin(XEvent *e);
  131. void focusnext(const char *arg);
  132. void focusprev(const char *arg);
  133. Client *getclient(Window w);
  134. unsigned long getcolor(const char *colstr);
  135. long getstate(Window w);
  136. Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
  137. void grabbuttons(Client *c, Bool focused);
  138. void grabkeys(void);
  139. unsigned int idxoftag(const char *tag);
  140. void initfont(const char *fontstr);
  141. Bool isoccupied(unsigned int t);
  142. Bool isprotodel(Client *c);
  143. Bool isvisible(Client *c);
  144. void keypress(XEvent *e);
  145. void killclient(const char *arg);
  146. void leavenotify(XEvent *e);
  147. void manage(Window w, XWindowAttributes *wa);
  148. void mappingnotify(XEvent *e);
  149. void maprequest(XEvent *e);
  150. void movemouse(Client *c);
  151. Client *nexttiled(Client *c);
  152. void propertynotify(XEvent *e);
  153. void quit(const char *arg);
  154. void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
  155. void resizemouse(Client *c);
  156. void restack(void);
  157. void run(void);
  158. void scan(void);
  159. void setclientstate(Client *c, long state);
  160. void setlayout(const char *arg);
  161. void setmwfact(const char *arg);
  162. void setup(void);
  163. void spawn(const char *arg);
  164. void tag(const char *arg);
  165. unsigned int textnw(const char *text, unsigned int len);
  166. unsigned int textw(const char *text);
  167. void tile(void);
  168. void togglebar(const char *arg);
  169. void togglefloating(const char *arg);
  170. void togglemax(const char *arg);
  171. void toggletag(const char *arg);
  172. void toggleview(const char *arg);
  173. void unban(Client *c);
  174. void unmanage(Client *c);
  175. void unmapnotify(XEvent *e);
  176. void updatebarpos(void);
  177. void updatesizehints(Client *c);
  178. void updatetitle(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 *dsply, XErrorEvent *ee);
  183. int xerrorstart(Display *dsply, XErrorEvent *ee);
  184. void zoom(const char *arg);
  185. /* variables */
  186. char stext[256];
  187. double mwfact;
  188. int screen, sx, sy, sw, sh, wax, way, waw, wah;
  189. int (*xerrorxlib)(Display *, XErrorEvent *);
  190. unsigned int bh, bpos;
  191. unsigned int blw = 0;
  192. unsigned int numlockmask = 0;
  193. void (*handler[LASTEvent]) (XEvent *) = {
  194. [ButtonPress] = buttonpress,
  195. [ConfigureRequest] = configurerequest,
  196. [ConfigureNotify] = configurenotify,
  197. [DestroyNotify] = destroynotify,
  198. [EnterNotify] = enternotify,
  199. [Expose] = expose,
  200. [FocusIn] = focusin,
  201. [KeyPress] = keypress,
  202. [LeaveNotify] = leavenotify,
  203. [MappingNotify] = mappingnotify,
  204. [MapRequest] = maprequest,
  205. [PropertyNotify] = propertynotify,
  206. [UnmapNotify] = unmapnotify
  207. };
  208. Atom wmatom[WMLast], netatom[NetLast];
  209. Bool domwfact = True;
  210. Bool dozoom = True;
  211. Bool otherwm, readin;
  212. Bool running = True;
  213. Bool selscreen = True;
  214. Client *clients = NULL;
  215. Client *sel = NULL;
  216. Client *stack = NULL;
  217. Cursor cursor[CurLast];
  218. Display *dpy;
  219. DC dc = {0};
  220. Layout *layout = NULL;
  221. Window barwin, root;
  222. Regs *regs = NULL;
  223. /* configuration, allows nested code to access above variables */
  224. #include "config.h"
  225. Bool prevtags[LENGTH(tags)];
  226. /* function implementations */
  227. void
  228. applyrules(Client *c) {
  229. static char buf[512];
  230. unsigned int i, j;
  231. regmatch_t tmp;
  232. Bool matched = False;
  233. XClassHint ch = { 0 };
  234. /* rule matching */
  235. XGetClassHint(dpy, c->win, &ch);
  236. snprintf(buf, sizeof buf, "%s:%s:%s",
  237. ch.res_class ? ch.res_class : "",
  238. ch.res_name ? ch.res_name : "", c->name);
  239. for(i = 0; i < LENGTH(rules); i++)
  240. if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
  241. c->isfloating = rules[i].isfloating;
  242. for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {
  243. if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
  244. matched = True;
  245. c->tags[j] = True;
  246. }
  247. }
  248. }
  249. if(ch.res_class)
  250. XFree(ch.res_class);
  251. if(ch.res_name)
  252. XFree(ch.res_name);
  253. if(!matched)
  254. memcpy(c->tags, seltags, sizeof seltags);
  255. }
  256. void
  257. arrange(void) {
  258. Client *c;
  259. for(c = clients; c; c = c->next)
  260. if(isvisible(c))
  261. unban(c);
  262. else
  263. ban(c);
  264. layout->arrange();
  265. focus(NULL);
  266. restack();
  267. }
  268. void
  269. attach(Client *c) {
  270. if(clients)
  271. clients->prev = c;
  272. c->next = clients;
  273. clients = c;
  274. }
  275. void
  276. attachstack(Client *c) {
  277. c->snext = stack;
  278. stack = c;
  279. }
  280. void
  281. ban(Client *c) {
  282. if(c->isbanned)
  283. return;
  284. XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  285. c->isbanned = True;
  286. }
  287. void
  288. buttonpress(XEvent *e) {
  289. unsigned int i, x;
  290. Client *c;
  291. XButtonPressedEvent *ev = &e->xbutton;
  292. if(ev->window == barwin) {
  293. x = 0;
  294. for(i = 0; i < LENGTH(tags); i++) {
  295. x += textw(tags[i]);
  296. if(ev->x < x) {
  297. if(ev->button == Button1) {
  298. if(ev->state & MODKEY)
  299. tag(tags[i]);
  300. else
  301. view(tags[i]);
  302. }
  303. else if(ev->button == Button3) {
  304. if(ev->state & MODKEY)
  305. toggletag(tags[i]);
  306. else
  307. toggleview(tags[i]);
  308. }
  309. return;
  310. }
  311. }
  312. if((ev->x < x + blw) && ev->button == Button1)
  313. setlayout(NULL);
  314. }
  315. else if((c = getclient(ev->window))) {
  316. focus(c);
  317. if(CLEANMASK(ev->state) != MODKEY)
  318. return;
  319. if(ev->button == Button1) {
  320. if((layout->arrange == floating) || c->isfloating)
  321. restack();
  322. else
  323. togglefloating(NULL);
  324. movemouse(c);
  325. }
  326. else if(ev->button == Button2) {
  327. if((floating != layout->arrange) && c->isfloating)
  328. togglefloating(NULL);
  329. else
  330. zoom(NULL);
  331. }
  332. else if(ev->button == Button3 && !c->isfixed) {
  333. if((floating == layout->arrange) || c->isfloating)
  334. restack();
  335. else
  336. togglefloating(NULL);
  337. resizemouse(c);
  338. }
  339. }
  340. }
  341. void
  342. checkotherwm(void) {
  343. otherwm = False;
  344. XSetErrorHandler(xerrorstart);
  345. /* this causes an error if some other window manager is running */
  346. XSelectInput(dpy, root, SubstructureRedirectMask);
  347. XSync(dpy, False);
  348. if(otherwm)
  349. eprint("dwm: another window manager is already running\n");
  350. XSync(dpy, False);
  351. XSetErrorHandler(NULL);
  352. xerrorxlib = XSetErrorHandler(xerror);
  353. XSync(dpy, False);
  354. }
  355. void
  356. cleanup(void) {
  357. close(STDIN_FILENO);
  358. while(stack) {
  359. unban(stack);
  360. unmanage(stack);
  361. }
  362. if(dc.font.set)
  363. XFreeFontSet(dpy, dc.font.set);
  364. else
  365. XFreeFont(dpy, dc.font.xfont);
  366. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  367. XFreePixmap(dpy, dc.drawable);
  368. XFreeGC(dpy, dc.gc);
  369. XDestroyWindow(dpy, barwin);
  370. XFreeCursor(dpy, cursor[CurNormal]);
  371. XFreeCursor(dpy, cursor[CurResize]);
  372. XFreeCursor(dpy, cursor[CurMove]);
  373. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  374. XSync(dpy, False);
  375. }
  376. void
  377. compileregs(void) {
  378. unsigned int i;
  379. regex_t *reg;
  380. if(regs)
  381. return;
  382. regs = emallocz(LENGTH(rules) * sizeof(Regs));
  383. for(i = 0; i < LENGTH(rules); i++) {
  384. if(rules[i].prop) {
  385. reg = emallocz(sizeof(regex_t));
  386. if(regcomp(reg, rules[i].prop, REG_EXTENDED))
  387. free(reg);
  388. else
  389. regs[i].propregex = reg;
  390. }
  391. if(rules[i].tags) {
  392. reg = emallocz(sizeof(regex_t));
  393. if(regcomp(reg, rules[i].tags, REG_EXTENDED))
  394. free(reg);
  395. else
  396. regs[i].tagregex = reg;
  397. }
  398. }
  399. }
  400. void
  401. configure(Client *c) {
  402. XConfigureEvent ce;
  403. ce.type = ConfigureNotify;
  404. ce.display = dpy;
  405. ce.event = c->win;
  406. ce.window = c->win;
  407. ce.x = c->x;
  408. ce.y = c->y;
  409. ce.width = c->w;
  410. ce.height = c->h;
  411. ce.border_width = c->border;
  412. ce.above = None;
  413. ce.override_redirect = False;
  414. XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
  415. }
  416. void
  417. configurenotify(XEvent *e) {
  418. XConfigureEvent *ev = &e->xconfigure;
  419. if(ev->window == root && (ev->width != sw || ev->height != sh)) {
  420. sw = ev->width;
  421. sh = ev->height;
  422. XFreePixmap(dpy, dc.drawable);
  423. dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
  424. XResizeWindow(dpy, barwin, sw, bh);
  425. updatebarpos();
  426. arrange();
  427. }
  428. }
  429. void
  430. configurerequest(XEvent *e) {
  431. Client *c;
  432. XConfigureRequestEvent *ev = &e->xconfigurerequest;
  433. XWindowChanges wc;
  434. if((c = getclient(ev->window))) {
  435. c->ismax = False;
  436. if(ev->value_mask & CWBorderWidth)
  437. c->border = ev->border_width;
  438. if(c->isfixed || c->isfloating || (floating == layout->arrange)) {
  439. if(ev->value_mask & CWX)
  440. c->x = ev->x;
  441. if(ev->value_mask & CWY)
  442. c->y = ev->y;
  443. if(ev->value_mask & CWWidth)
  444. c->w = ev->width;
  445. if(ev->value_mask & CWHeight)
  446. c->h = ev->height;
  447. if((c->x + c->w) > sw && c->isfloating)
  448. c->x = sw / 2 - c->w / 2; /* center in x direction */
  449. if((c->y + c->h) > sh && c->isfloating)
  450. c->y = sh / 2 - c->h / 2; /* center in y direction */
  451. if((ev->value_mask & (CWX | CWY))
  452. && !(ev->value_mask & (CWWidth | CWHeight)))
  453. configure(c);
  454. if(isvisible(c))
  455. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  456. }
  457. else
  458. configure(c);
  459. }
  460. else {
  461. wc.x = ev->x;
  462. wc.y = ev->y;
  463. wc.width = ev->width;
  464. wc.height = ev->height;
  465. wc.border_width = ev->border_width;
  466. wc.sibling = ev->above;
  467. wc.stack_mode = ev->detail;
  468. XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
  469. }
  470. XSync(dpy, False);
  471. }
  472. void
  473. destroynotify(XEvent *e) {
  474. Client *c;
  475. XDestroyWindowEvent *ev = &e->xdestroywindow;
  476. if((c = getclient(ev->window)))
  477. unmanage(c);
  478. }
  479. void
  480. detach(Client *c) {
  481. if(c->prev)
  482. c->prev->next = c->next;
  483. if(c->next)
  484. c->next->prev = c->prev;
  485. if(c == clients)
  486. clients = c->next;
  487. c->next = c->prev = NULL;
  488. }
  489. void
  490. detachstack(Client *c) {
  491. Client **tc;
  492. for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
  493. *tc = c->snext;
  494. }
  495. void
  496. drawbar(void) {
  497. int i, x;
  498. dc.x = dc.y = 0;
  499. for(i = 0; i < LENGTH(tags); i++) {
  500. dc.w = textw(tags[i]);
  501. if(seltags[i]) {
  502. drawtext(tags[i], dc.sel);
  503. drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
  504. }
  505. else {
  506. drawtext(tags[i], dc.norm);
  507. drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
  508. }
  509. dc.x += dc.w;
  510. }
  511. dc.w = blw;
  512. drawtext(layout->symbol, dc.norm);
  513. x = dc.x + dc.w;
  514. dc.w = textw(stext);
  515. dc.x = sw - dc.w;
  516. if(dc.x < x) {
  517. dc.x = x;
  518. dc.w = sw - x;
  519. }
  520. drawtext(stext, dc.norm);
  521. if((dc.w = dc.x - x) > bh) {
  522. dc.x = x;
  523. if(sel) {
  524. drawtext(sel->name, dc.sel);
  525. drawsquare(sel->ismax, sel->isfloating, dc.sel);
  526. }
  527. else
  528. drawtext(NULL, dc.norm);
  529. }
  530. XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
  531. XSync(dpy, False);
  532. }
  533. void
  534. drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
  535. int x;
  536. XGCValues gcv;
  537. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  538. gcv.foreground = col[ColFG];
  539. XChangeGC(dpy, dc.gc, GCForeground, &gcv);
  540. x = (dc.font.ascent + dc.font.descent + 2) / 4;
  541. r.x = dc.x + 1;
  542. r.y = dc.y + 1;
  543. if(filled) {
  544. r.width = r.height = x + 1;
  545. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  546. }
  547. else if(empty) {
  548. r.width = r.height = x;
  549. XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  550. }
  551. }
  552. void
  553. drawtext(const char *text, unsigned long col[ColLast]) {
  554. int x, y, w, h;
  555. static char buf[256];
  556. unsigned int len, olen;
  557. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  558. XSetForeground(dpy, dc.gc, col[ColBG]);
  559. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  560. if(!text)
  561. return;
  562. w = 0;
  563. olen = len = strlen(text);
  564. if(len >= sizeof buf)
  565. len = sizeof buf - 1;
  566. memcpy(buf, text, len);
  567. buf[len] = 0;
  568. h = dc.font.ascent + dc.font.descent;
  569. y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
  570. x = dc.x + (h / 2);
  571. /* shorten text if necessary */
  572. while(len && (w = textnw(buf, len)) > dc.w - h)
  573. buf[--len] = 0;
  574. if(len < olen) {
  575. if(len > 1)
  576. buf[len - 1] = '.';
  577. if(len > 2)
  578. buf[len - 2] = '.';
  579. if(len > 3)
  580. buf[len - 3] = '.';
  581. }
  582. if(w > dc.w)
  583. return; /* too long */
  584. XSetForeground(dpy, dc.gc, col[ColFG]);
  585. if(dc.font.set)
  586. XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
  587. else
  588. XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
  589. }
  590. void *
  591. emallocz(unsigned int size) {
  592. void *res = calloc(1, size);
  593. if(!res)
  594. eprint("fatal: could not malloc() %u bytes\n", size);
  595. return res;
  596. }
  597. void
  598. enternotify(XEvent *e) {
  599. Client *c;
  600. XCrossingEvent *ev = &e->xcrossing;
  601. if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
  602. return;
  603. if((c = getclient(ev->window)))
  604. focus(c);
  605. else if(ev->window == root) {
  606. selscreen = True;
  607. focus(NULL);
  608. }
  609. }
  610. void
  611. eprint(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. void
  619. expose(XEvent *e) {
  620. XExposeEvent *ev = &e->xexpose;
  621. if(ev->count == 0) {
  622. if(ev->window == barwin)
  623. drawbar();
  624. }
  625. }
  626. void
  627. floating(void) { /* default floating layout */
  628. Client *c;
  629. domwfact = dozoom = False;
  630. for(c = clients; c; c = c->next)
  631. if(isvisible(c))
  632. resize(c, c->x, c->y, c->w, c->h, True);
  633. }
  634. void
  635. focus(Client *c) {
  636. if((!c && selscreen) || (c && !isvisible(c)))
  637. for(c = stack; c && !isvisible(c); c = c->snext);
  638. if(sel && sel != c) {
  639. grabbuttons(sel, False);
  640. XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
  641. }
  642. if(c) {
  643. detachstack(c);
  644. attachstack(c);
  645. grabbuttons(c, True);
  646. }
  647. sel = c;
  648. drawbar();
  649. if(!selscreen)
  650. return;
  651. if(c) {
  652. XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
  653. XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  654. }
  655. else
  656. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  657. }
  658. void
  659. focusin(XEvent *e) { /* there are some broken focus acquiring clients */
  660. XFocusChangeEvent *ev = &e->xfocus;
  661. if(sel && ev->window != sel->win)
  662. XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
  663. }
  664. void
  665. focusnext(const char *arg) {
  666. Client *c;
  667. if(!sel)
  668. return;
  669. for(c = sel->next; c && !isvisible(c); c = c->next);
  670. if(!c)
  671. for(c = clients; c && !isvisible(c); c = c->next);
  672. if(c) {
  673. focus(c);
  674. restack();
  675. }
  676. }
  677. void
  678. focusprev(const char *arg) {
  679. Client *c;
  680. if(!sel)
  681. return;
  682. for(c = sel->prev; c && !isvisible(c); c = c->prev);
  683. if(!c) {
  684. for(c = clients; c && c->next; c = c->next);
  685. for(; c && !isvisible(c); c = c->prev);
  686. }
  687. if(c) {
  688. focus(c);
  689. restack();
  690. }
  691. }
  692. Client *
  693. getclient(Window w) {
  694. Client *c;
  695. for(c = clients; c && c->win != w; c = c->next);
  696. return c;
  697. }
  698. unsigned long
  699. getcolor(const char *colstr) {
  700. Colormap cmap = DefaultColormap(dpy, screen);
  701. XColor color;
  702. if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
  703. eprint("error, cannot allocate color '%s'\n", colstr);
  704. return color.pixel;
  705. }
  706. long
  707. getstate(Window w) {
  708. int format, status;
  709. long result = -1;
  710. unsigned char *p = NULL;
  711. unsigned long n, extra;
  712. Atom real;
  713. status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
  714. &real, &format, &n, &extra, (unsigned char **)&p);
  715. if(status != Success)
  716. return -1;
  717. if(n != 0)
  718. result = *p;
  719. XFree(p);
  720. return result;
  721. }
  722. Bool
  723. gettextprop(Window w, Atom atom, char *text, unsigned int size) {
  724. char **list = NULL;
  725. int n;
  726. XTextProperty name;
  727. if(!text || size == 0)
  728. return False;
  729. text[0] = '\0';
  730. XGetTextProperty(dpy, w, &name, atom);
  731. if(!name.nitems)
  732. return False;
  733. if(name.encoding == XA_STRING)
  734. strncpy(text, (char *)name.value, size - 1);
  735. else {
  736. if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
  737. && n > 0 && *list) {
  738. strncpy(text, *list, size - 1);
  739. XFreeStringList(list);
  740. }
  741. }
  742. text[size - 1] = '\0';
  743. XFree(name.value);
  744. return True;
  745. }
  746. void
  747. grabbuttons(Client *c, Bool focused) {
  748. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  749. if(focused) {
  750. XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
  751. GrabModeAsync, GrabModeSync, None, None);
  752. XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
  753. GrabModeAsync, GrabModeSync, None, None);
  754. XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
  755. GrabModeAsync, GrabModeSync, None, None);
  756. XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
  757. GrabModeAsync, GrabModeSync, None, None);
  758. XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
  759. GrabModeAsync, GrabModeSync, None, None);
  760. XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
  761. GrabModeAsync, GrabModeSync, None, None);
  762. XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
  763. GrabModeAsync, GrabModeSync, None, None);
  764. XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
  765. GrabModeAsync, GrabModeSync, None, None);
  766. XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
  767. GrabModeAsync, GrabModeSync, None, None);
  768. XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
  769. GrabModeAsync, GrabModeSync, None, None);
  770. XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
  771. GrabModeAsync, GrabModeSync, None, None);
  772. XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
  773. GrabModeAsync, GrabModeSync, None, None);
  774. }
  775. else
  776. XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
  777. GrabModeAsync, GrabModeSync, None, None);
  778. }
  779. void
  780. grabkeys(void) {
  781. unsigned int i;
  782. KeyCode code;
  783. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  784. for(i = 0; i < LENGTH(keys); i++) {
  785. code = XKeysymToKeycode(dpy, keys[i].keysym);
  786. XGrabKey(dpy, code, keys[i].mod, root, True,
  787. GrabModeAsync, GrabModeAsync);
  788. XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
  789. GrabModeAsync, GrabModeAsync);
  790. XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
  791. GrabModeAsync, GrabModeAsync);
  792. XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
  793. GrabModeAsync, GrabModeAsync);
  794. }
  795. }
  796. unsigned int
  797. idxoftag(const char *tag) {
  798. unsigned int i;
  799. for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
  800. return (i < LENGTH(tags)) ? i : 0;
  801. }
  802. void
  803. initfont(const char *fontstr) {
  804. char *def, **missing;
  805. int i, n;
  806. missing = NULL;
  807. if(dc.font.set)
  808. XFreeFontSet(dpy, dc.font.set);
  809. dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
  810. if(missing) {
  811. while(n--)
  812. fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
  813. XFreeStringList(missing);
  814. }
  815. if(dc.font.set) {
  816. XFontSetExtents *font_extents;
  817. XFontStruct **xfonts;
  818. char **font_names;
  819. dc.font.ascent = dc.font.descent = 0;
  820. font_extents = XExtentsOfFontSet(dc.font.set);
  821. n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
  822. for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
  823. if(dc.font.ascent < (*xfonts)->ascent)
  824. dc.font.ascent = (*xfonts)->ascent;
  825. if(dc.font.descent < (*xfonts)->descent)
  826. dc.font.descent = (*xfonts)->descent;
  827. xfonts++;
  828. }
  829. }
  830. else {
  831. if(dc.font.xfont)
  832. XFreeFont(dpy, dc.font.xfont);
  833. dc.font.xfont = NULL;
  834. if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
  835. && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
  836. eprint("error, cannot load font: '%s'\n", fontstr);
  837. dc.font.ascent = dc.font.xfont->ascent;
  838. dc.font.descent = dc.font.xfont->descent;
  839. }
  840. dc.font.height = dc.font.ascent + dc.font.descent;
  841. }
  842. Bool
  843. isoccupied(unsigned int t) {
  844. Client *c;
  845. for(c = clients; c; c = c->next)
  846. if(c->tags[t])
  847. return True;
  848. return False;
  849. }
  850. Bool
  851. isprotodel(Client *c) {
  852. int i, n;
  853. Atom *protocols;
  854. Bool ret = False;
  855. if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
  856. for(i = 0; !ret && i < n; i++)
  857. if(protocols[i] == wmatom[WMDelete])
  858. ret = True;
  859. XFree(protocols);
  860. }
  861. return ret;
  862. }
  863. Bool
  864. isvisible(Client *c) {
  865. unsigned int i;
  866. for(i = 0; i < LENGTH(tags); i++)
  867. if(c->tags[i] && seltags[i])
  868. return True;
  869. return False;
  870. }
  871. void
  872. keypress(XEvent *e) {
  873. unsigned int i;
  874. KeySym keysym;
  875. XKeyEvent *ev;
  876. ev = &e->xkey;
  877. keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
  878. for(i = 0; i < LENGTH(keys); i++)
  879. if(keysym == keys[i].keysym
  880. && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
  881. {
  882. if(keys[i].func)
  883. keys[i].func(keys[i].arg);
  884. }
  885. }
  886. void
  887. killclient(const char *arg) {
  888. XEvent ev;
  889. if(!sel)
  890. return;
  891. if(isprotodel(sel)) {
  892. ev.type = ClientMessage;
  893. ev.xclient.window = sel->win;
  894. ev.xclient.message_type = wmatom[WMProtocols];
  895. ev.xclient.format = 32;
  896. ev.xclient.data.l[0] = wmatom[WMDelete];
  897. ev.xclient.data.l[1] = CurrentTime;
  898. XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
  899. }
  900. else
  901. XKillClient(dpy, sel->win);
  902. }
  903. void
  904. leavenotify(XEvent *e) {
  905. XCrossingEvent *ev = &e->xcrossing;
  906. if((ev->window == root) && !ev->same_screen) {
  907. selscreen = False;
  908. focus(NULL);
  909. }
  910. }
  911. void
  912. manage(Window w, XWindowAttributes *wa) {
  913. Client *c, *t = NULL;
  914. Window trans;
  915. Status rettrans;
  916. XWindowChanges wc;
  917. c = emallocz(sizeof(Client));
  918. c->tags = emallocz(sizeof seltags);
  919. c->win = w;
  920. c->x = wa->x;
  921. c->y = wa->y;
  922. c->w = wa->width;
  923. c->h = wa->height;
  924. c->oldborder = wa->border_width;
  925. if(c->w == sw && c->h == sh) {
  926. c->x = sx;
  927. c->y = sy;
  928. c->border = wa->border_width;
  929. }
  930. else {
  931. if(c->x + c->w + 2 * c->border > wax + waw)
  932. c->x = wax + waw - c->w - 2 * c->border;
  933. if(c->y + c->h + 2 * c->border > way + wah)
  934. c->y = way + wah - c->h - 2 * c->border;
  935. if(c->x < wax)
  936. c->x = wax;
  937. if(c->y < way)
  938. c->y = way;
  939. c->border = BORDERPX;
  940. }
  941. wc.border_width = c->border;
  942. XConfigureWindow(dpy, w, CWBorderWidth, &wc);
  943. XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
  944. configure(c); /* propagates border_width, if size doesn't change */
  945. updatesizehints(c);
  946. XSelectInput(dpy, w, EnterWindowMask | FocusChangeMask | PropertyChangeMask | StructureNotifyMask);
  947. grabbuttons(c, False);
  948. updatetitle(c);
  949. if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
  950. for(t = clients; t && t->win != trans; t = t->next);
  951. if(t)
  952. memcpy(c->tags, t->tags, sizeof seltags);
  953. applyrules(c);
  954. if(!c->isfloating)
  955. c->isfloating = (rettrans == Success) || c->isfixed;
  956. attach(c);
  957. attachstack(c);
  958. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
  959. ban(c);
  960. XMapWindow(dpy, c->win);
  961. setclientstate(c, NormalState);
  962. arrange();
  963. }
  964. void
  965. mappingnotify(XEvent *e) {
  966. XMappingEvent *ev = &e->xmapping;
  967. XRefreshKeyboardMapping(ev);
  968. if(ev->request == MappingKeyboard)
  969. grabkeys();
  970. }
  971. void
  972. maprequest(XEvent *e) {
  973. static XWindowAttributes wa;
  974. XMapRequestEvent *ev = &e->xmaprequest;
  975. if(!XGetWindowAttributes(dpy, ev->window, &wa))
  976. return;
  977. if(wa.override_redirect)
  978. return;
  979. if(!getclient(ev->window))
  980. manage(ev->window, &wa);
  981. }
  982. void
  983. movemouse(Client *c) {
  984. int x1, y1, ocx, ocy, di, nx, ny;
  985. unsigned int dui;
  986. Window dummy;
  987. XEvent ev;
  988. ocx = nx = c->x;
  989. ocy = ny = c->y;
  990. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  991. None, cursor[CurMove], CurrentTime) != GrabSuccess)
  992. return;
  993. c->ismax = False;
  994. XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
  995. for(;;) {
  996. XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
  997. switch (ev.type) {
  998. case ButtonRelease:
  999. XUngrabPointer(dpy, CurrentTime);
  1000. return;
  1001. case ConfigureRequest:
  1002. case Expose:
  1003. case MapRequest:
  1004. handler[ev.type](&ev);
  1005. break;
  1006. case MotionNotify:
  1007. XSync(dpy, False);
  1008. nx = ocx + (ev.xmotion.x - x1);
  1009. ny = ocy + (ev.xmotion.y - y1);
  1010. if(abs(wax + nx) < SNAP)
  1011. nx = wax;
  1012. else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
  1013. nx = wax + waw - c->w - 2 * c->border;
  1014. if(abs(way - ny) < SNAP)
  1015. ny = way;
  1016. else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
  1017. ny = way + wah - c->h - 2 * c->border;
  1018. resize(c, nx, ny, c->w, c->h, False);
  1019. break;
  1020. }
  1021. }
  1022. }
  1023. Client *
  1024. nexttiled(Client *c) {
  1025. for(; c && (c->isfloating || !isvisible(c)); c = c->next);
  1026. return c;
  1027. }
  1028. void
  1029. propertynotify(XEvent *e) {
  1030. Client *c;
  1031. Window trans;
  1032. XPropertyEvent *ev = &e->xproperty;
  1033. if(ev->state == PropertyDelete)
  1034. return; /* ignore */
  1035. if((c = getclient(ev->window))) {
  1036. switch (ev->atom) {
  1037. default: break;
  1038. case XA_WM_TRANSIENT_FOR:
  1039. XGetTransientForHint(dpy, c->win, &trans);
  1040. if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
  1041. arrange();
  1042. break;
  1043. case XA_WM_NORMAL_HINTS:
  1044. updatesizehints(c);
  1045. break;
  1046. }
  1047. if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
  1048. updatetitle(c);
  1049. if(c == sel)
  1050. drawbar();
  1051. }
  1052. }
  1053. }
  1054. void
  1055. quit(const char *arg) {
  1056. readin = running = False;
  1057. }
  1058. void
  1059. resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
  1060. XWindowChanges wc;
  1061. if(sizehints) {
  1062. /* set minimum possible */
  1063. if (w < 1)
  1064. w = 1;
  1065. if (h < 1)
  1066. h = 1;
  1067. /* temporarily remove base dimensions */
  1068. w -= c->basew;
  1069. h -= c->baseh;
  1070. /* adjust for aspect limits */
  1071. if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
  1072. if (w * c->maxay > h * c->maxax)
  1073. w = h * c->maxax / c->maxay;
  1074. else if (w * c->minay < h * c->minax)
  1075. h = w * c->minay / c->minax;
  1076. }
  1077. /* adjust for increment value */
  1078. if(c->incw)
  1079. w -= w % c->incw;
  1080. if(c->inch)
  1081. h -= h % c->inch;
  1082. /* restore base dimensions */
  1083. w += c->basew;
  1084. h += c->baseh;
  1085. if(c->minw > 0 && w < c->minw)
  1086. w = c->minw;
  1087. if(c->minh > 0 && h < c->minh)
  1088. h = c->minh;
  1089. if(c->maxw > 0 && w > c->maxw)
  1090. w = c->maxw;
  1091. if(c->maxh > 0 && h > c->maxh)
  1092. h = c->maxh;
  1093. }
  1094. if(w <= 0 || h <= 0)
  1095. return;
  1096. /* offscreen appearance fixes */
  1097. if(x > sw)
  1098. x = sw - w - 2 * c->border;
  1099. if(y > sh)
  1100. y = sh - h - 2 * c->border;
  1101. if(x + w + 2 * c->border < sx)
  1102. x = sx;
  1103. if(y + h + 2 * c->border < sy)
  1104. y = sy;
  1105. if(c->x != x || c->y != y || c->w != w || c->h != h) {
  1106. c->x = wc.x = x;
  1107. c->y = wc.y = y;
  1108. c->w = wc.width = w;
  1109. c->h = wc.height = h;
  1110. wc.border_width = c->border;
  1111. XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
  1112. configure(c);
  1113. XSync(dpy, False);
  1114. }
  1115. }
  1116. void
  1117. resizemouse(Client *c) {
  1118. int ocx, ocy;
  1119. int nw, nh;
  1120. XEvent ev;
  1121. ocx = c->x;
  1122. ocy = c->y;
  1123. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1124. None, cursor[CurResize], CurrentTime) != GrabSuccess)
  1125. return;
  1126. c->ismax = False;
  1127. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
  1128. for(;;) {
  1129. XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
  1130. switch(ev.type) {
  1131. case ButtonRelease:
  1132. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
  1133. c->w + c->border - 1, c->h + c->border - 1);
  1134. XUngrabPointer(dpy, CurrentTime);
  1135. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1136. return;
  1137. case ConfigureRequest:
  1138. case Expose:
  1139. case MapRequest:
  1140. handler[ev.type](&ev);
  1141. break;
  1142. case MotionNotify:
  1143. XSync(dpy, False);
  1144. if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
  1145. nw = 1;
  1146. if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
  1147. nh = 1;
  1148. resize(c, c->x, c->y, nw, nh, True);
  1149. break;
  1150. }
  1151. }
  1152. }
  1153. void
  1154. restack(void) {
  1155. Client *c;
  1156. XEvent ev;
  1157. XWindowChanges wc;
  1158. drawbar();
  1159. if(!sel)
  1160. return;
  1161. if(sel->isfloating || (layout->arrange == floating))
  1162. XRaiseWindow(dpy, sel->win);
  1163. if(layout->arrange != floating) {
  1164. wc.stack_mode = Below;
  1165. wc.sibling = barwin;
  1166. if(!sel->isfloating) {
  1167. XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
  1168. wc.sibling = sel->win;
  1169. }
  1170. for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
  1171. if(c == sel)
  1172. continue;
  1173. XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
  1174. wc.sibling = c->win;
  1175. }
  1176. }
  1177. XSync(dpy, False);
  1178. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1179. }
  1180. void
  1181. run(void) {
  1182. char *p;
  1183. char buf[sizeof stext];
  1184. fd_set rd;
  1185. int r, xfd;
  1186. unsigned int len, offset;
  1187. XEvent ev;
  1188. /* main event loop, also reads status text from stdin */
  1189. XSync(dpy, False);
  1190. xfd = ConnectionNumber(dpy);
  1191. readin = True;
  1192. offset = 0;
  1193. len = sizeof stext - 1;
  1194. buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
  1195. while(running) {
  1196. FD_ZERO(&rd);
  1197. if(readin)
  1198. FD_SET(STDIN_FILENO, &rd);
  1199. FD_SET(xfd, &rd);
  1200. if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
  1201. if(errno == EINTR)
  1202. continue;
  1203. eprint("select failed\n");
  1204. }
  1205. if(FD_ISSET(STDIN_FILENO, &rd)) {
  1206. switch((r = read(STDIN_FILENO, buf + offset, len - offset))) {
  1207. case -1:
  1208. strncpy(stext, strerror(errno), len);
  1209. readin = False;
  1210. break;
  1211. case 0:
  1212. strncpy(stext, "EOF", 4);
  1213. readin = False;
  1214. break;
  1215. default:
  1216. for(p = buf + offset; r > 0; p++, r--, offset++)
  1217. if(*p == '\n' || *p == '\0') {
  1218. *p = '\0';
  1219. strncpy(stext, buf, len);
  1220. p += r - 1; /* p is buf + offset + r - 1 */
  1221. for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
  1222. offset = r;
  1223. if(r)
  1224. memmove(buf, p - r + 1, r);
  1225. break;
  1226. }
  1227. break;
  1228. }
  1229. drawbar();
  1230. }
  1231. while(XPending(dpy)) {
  1232. XNextEvent(dpy, &ev);
  1233. if(handler[ev.type])
  1234. (handler[ev.type])(&ev); /* call handler */
  1235. }
  1236. }
  1237. }
  1238. void
  1239. scan(void) {
  1240. unsigned int i, num;
  1241. Window *wins, d1, d2;
  1242. XWindowAttributes wa;
  1243. wins = NULL;
  1244. if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  1245. for(i = 0; i < num; i++) {
  1246. if(!XGetWindowAttributes(dpy, wins[i], &wa)
  1247. || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  1248. continue;
  1249. if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
  1250. manage(wins[i], &wa);
  1251. }
  1252. for(i = 0; i < num; i++) { /* now the transients */
  1253. if(!XGetWindowAttributes(dpy, wins[i], &wa))
  1254. continue;
  1255. if(XGetTransientForHint(dpy, wins[i], &d1)
  1256. && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
  1257. manage(wins[i], &wa);
  1258. }
  1259. }
  1260. if(wins)
  1261. XFree(wins);
  1262. }
  1263. void
  1264. setclientstate(Client *c, long state) {
  1265. long data[] = {state, None};
  1266. XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
  1267. PropModeReplace, (unsigned char *)data, 2);
  1268. }
  1269. void
  1270. setlayout(const char *arg) {
  1271. unsigned int i;
  1272. if(!arg) {
  1273. if(++layout == &layouts[LENGTH(layouts)])
  1274. layout = &layouts[0];
  1275. }
  1276. else {
  1277. for(i = 0; i < LENGTH(layouts); i++)
  1278. if(!strcmp(arg, layouts[i].symbol))
  1279. break;
  1280. if(i == LENGTH(layouts))
  1281. return;
  1282. layout = &layouts[i];
  1283. }
  1284. if(sel)
  1285. arrange();
  1286. else
  1287. drawbar();
  1288. }
  1289. void
  1290. setmwfact(const char *arg) {
  1291. double delta;
  1292. if(!domwfact)
  1293. return;
  1294. /* arg handling, manipulate mwfact */
  1295. if(arg == NULL)
  1296. mwfact = MWFACT;
  1297. else if(sscanf(arg, "%lf", &delta) == 1) {
  1298. if(arg[0] == '+' || arg[0] == '-')
  1299. mwfact += delta;
  1300. else
  1301. mwfact = delta;
  1302. if(mwfact < 0.1)
  1303. mwfact = 0.1;
  1304. else if(mwfact > 0.9)
  1305. mwfact = 0.9;
  1306. }
  1307. arrange();
  1308. }
  1309. void
  1310. setup(void) {
  1311. int d;
  1312. unsigned int i, j, mask;
  1313. Window w;
  1314. XModifierKeymap *modmap;
  1315. XSetWindowAttributes wa;
  1316. /* init atoms */
  1317. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  1318. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  1319. wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
  1320. wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
  1321. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  1322. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  1323. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  1324. PropModeReplace, (unsigned char *) netatom, NetLast);
  1325. /* init cursors */
  1326. cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
  1327. cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
  1328. cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
  1329. /* init geometry */
  1330. sx = sy = 0;
  1331. sw = DisplayWidth(dpy, screen);
  1332. sh = DisplayHeight(dpy, screen);
  1333. /* init modifier map */
  1334. modmap = XGetModifierMapping(dpy);
  1335. for(i = 0; i < 8; i++)
  1336. for(j = 0; j < modmap->max_keypermod; j++) {
  1337. if(modmap->modifiermap[i * modmap->max_keypermod + j]
  1338. == XKeysymToKeycode(dpy, XK_Num_Lock))
  1339. numlockmask = (1 << i);
  1340. }
  1341. XFreeModifiermap(modmap);
  1342. /* select for events */
  1343. wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
  1344. | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
  1345. wa.cursor = cursor[CurNormal];
  1346. XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
  1347. XSelectInput(dpy, root, wa.event_mask);
  1348. /* grab keys */
  1349. grabkeys();
  1350. /* init tags */
  1351. memcpy(prevtags, seltags, sizeof seltags);
  1352. compileregs();
  1353. /* init appearance */
  1354. dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
  1355. dc.norm[ColBG] = getcolor(NORMBGCOLOR);
  1356. dc.norm[ColFG] = getcolor(NORMFGCOLOR);
  1357. dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
  1358. dc.sel[ColBG] = getcolor(SELBGCOLOR);
  1359. dc.sel[ColFG] = getcolor(SELFGCOLOR);
  1360. initfont(FONT);
  1361. dc.h = bh = dc.font.height + 2;
  1362. /* init layouts */
  1363. mwfact = MWFACT;
  1364. layout = &layouts[0];
  1365. for(blw = i = 0; i < LENGTH(layouts); i++) {
  1366. j = textw(layouts[i].symbol);
  1367. if(j > blw)
  1368. blw = j;
  1369. }
  1370. /* init bar */
  1371. bpos = BARPOS;
  1372. wa.override_redirect = 1;
  1373. wa.background_pixmap = ParentRelative;
  1374. wa.event_mask = ButtonPressMask | ExposureMask;
  1375. barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
  1376. DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
  1377. CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
  1378. XDefineCursor(dpy, barwin, cursor[CurNormal]);
  1379. updatebarpos();
  1380. XMapRaised(dpy, barwin);
  1381. strcpy(stext, "dwm-"VERSION);
  1382. dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
  1383. dc.gc = XCreateGC(dpy, root, 0, 0);
  1384. XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
  1385. if(!dc.font.set)
  1386. XSetFont(dpy, dc.gc, dc.font.xfont->fid);
  1387. /* multihead support */
  1388. selscreen = XQueryPointer(dpy, root, &w, &w, &d, &d, &d, &d, &mask);
  1389. }
  1390. void
  1391. spawn(const char *arg) {
  1392. static char *shell = NULL;
  1393. if(!shell && !(shell = getenv("SHELL")))
  1394. shell = "/bin/sh";
  1395. if(!arg)
  1396. return;
  1397. /* The double-fork construct avoids zombie processes and keeps the code
  1398. * clean from stupid signal handlers. */
  1399. if(fork() == 0) {
  1400. if(fork() == 0) {
  1401. if(dpy)
  1402. close(ConnectionNumber(dpy));
  1403. setsid();
  1404. execl(shell, shell, "-c", arg, (char *)NULL);
  1405. fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
  1406. perror(" failed");
  1407. }
  1408. exit(0);
  1409. }
  1410. wait(0);
  1411. }
  1412. void
  1413. tag(const char *arg) {
  1414. unsigned int i;
  1415. if(!sel)
  1416. return;
  1417. for(i = 0; i < LENGTH(tags); i++)
  1418. sel->tags[i] = (NULL == arg);
  1419. sel->tags[idxoftag(arg)] = True;
  1420. arrange();
  1421. }
  1422. unsigned int
  1423. textnw(const char *text, unsigned int len) {
  1424. XRectangle r;
  1425. if(dc.font.set) {
  1426. XmbTextExtents(dc.font.set, text, len, NULL, &r);
  1427. return r.width;
  1428. }
  1429. return XTextWidth(dc.font.xfont, text, len);
  1430. }
  1431. unsigned int
  1432. textw(const char *text) {
  1433. return textnw(text, strlen(text)) + dc.font.height;
  1434. }
  1435. void
  1436. tile(void) {
  1437. unsigned int i, n, nx, ny, nw, nh, mw, th;
  1438. Client *c, *mc;
  1439. domwfact = dozoom = True;
  1440. for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
  1441. n++;
  1442. /* window geoms */
  1443. mw = (n == 1) ? waw : mwfact * waw;
  1444. th = (n > 1) ? wah / (n - 1) : 0;
  1445. if(n > 1 && th < bh)
  1446. th = wah;
  1447. nx = wax;
  1448. ny = way;
  1449. nw = 0; /* gcc stupidity requires this */
  1450. for(i = 0, c = mc = nexttiled(clients); c; c = nexttiled(c->next), i++) {
  1451. c->ismax = False;
  1452. if(i == 0) { /* master */
  1453. nw = mw - 2 * c->border;
  1454. nh = wah - 2 * c->border;
  1455. }
  1456. else { /* tile window */
  1457. if(i == 1) {
  1458. ny = way;
  1459. nx += mc->w + 2 * mc->border;
  1460. nw = waw - nx - 2 * c->border;
  1461. }
  1462. if(i + 1 == n) /* remainder */
  1463. nh = (way + wah) - ny - 2 * c->border;
  1464. else
  1465. nh = th - 2 * c->border;
  1466. }
  1467. resize(c, nx, ny, nw, nh, RESIZEHINTS);
  1468. if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw)))
  1469. /* client doesn't accept size constraints */
  1470. resize(c, nx, ny, nw, nh, False);
  1471. if(n > 1 && th != wah)
  1472. ny = c->y + c->h + 2 * c->border;
  1473. }
  1474. }
  1475. void
  1476. togglebar(const char *arg) {
  1477. if(bpos == BarOff)
  1478. bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
  1479. else
  1480. bpos = BarOff;
  1481. updatebarpos();
  1482. arrange();
  1483. }
  1484. void
  1485. togglefloating(const char *arg) {
  1486. if(!sel)
  1487. return;
  1488. sel->isfloating = !sel->isfloating;
  1489. if(sel->isfloating)
  1490. resize(sel, sel->x, sel->y, sel->w, sel->h, True);
  1491. arrange();
  1492. }
  1493. void
  1494. togglemax(const char *arg) {
  1495. XEvent ev;
  1496. if(!sel || sel->isfixed)
  1497. return;
  1498. if((sel->ismax = !sel->ismax)) {
  1499. if((layout->arrange == floating) || sel->isfloating)
  1500. sel->wasfloating = True;
  1501. else {
  1502. togglefloating(NULL);
  1503. sel->wasfloating = False;
  1504. }
  1505. sel->rx = sel->x;
  1506. sel->ry = sel->y;
  1507. sel->rw = sel->w;
  1508. sel->rh = sel->h;
  1509. resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
  1510. }
  1511. else {
  1512. resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
  1513. if(!sel->wasfloating)
  1514. togglefloating(NULL);
  1515. }
  1516. drawbar();
  1517. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1518. }
  1519. void
  1520. toggletag(const char *arg) {
  1521. unsigned int i, j;
  1522. if(!sel)
  1523. return;
  1524. i = idxoftag(arg);
  1525. sel->tags[i] = !sel->tags[i];
  1526. for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
  1527. if(j == LENGTH(tags))
  1528. sel->tags[i] = True; /* at least one tag must be enabled */
  1529. arrange();
  1530. }
  1531. void
  1532. toggleview(const char *arg) {
  1533. unsigned int i, j;
  1534. i = idxoftag(arg);
  1535. seltags[i] = !seltags[i];
  1536. for(j = 0; j < LENGTH(tags) && !seltags[j]; j++);
  1537. if(j == LENGTH(tags))
  1538. seltags[i] = True; /* at least one tag must be viewed */
  1539. arrange();
  1540. }
  1541. void
  1542. unban(Client *c) {
  1543. if(!c->isbanned)
  1544. return;
  1545. XMoveWindow(dpy, c->win, c->x, c->y);
  1546. c->isbanned = False;
  1547. }
  1548. void
  1549. unmanage(Client *c) {
  1550. XWindowChanges wc;
  1551. wc.border_width = c->oldborder;
  1552. /* The server grab construct avoids race conditions. */
  1553. XGrabServer(dpy);
  1554. XSetErrorHandler(xerrordummy);
  1555. XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
  1556. detach(c);
  1557. detachstack(c);
  1558. if(sel == c)
  1559. focus(NULL);
  1560. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  1561. setclientstate(c, WithdrawnState);
  1562. free(c->tags);
  1563. free(c);
  1564. XSync(dpy, False);
  1565. XSetErrorHandler(xerror);
  1566. XUngrabServer(dpy);
  1567. arrange();
  1568. }
  1569. void
  1570. unmapnotify(XEvent *e) {
  1571. Client *c;
  1572. XUnmapEvent *ev = &e->xunmap;
  1573. if((c = getclient(ev->window)))
  1574. unmanage(c);
  1575. }
  1576. void
  1577. updatebarpos(void) {
  1578. XEvent ev;
  1579. wax = sx;
  1580. way = sy;
  1581. wah = sh;
  1582. waw = sw;
  1583. switch(bpos) {
  1584. default:
  1585. wah -= bh;
  1586. way += bh;
  1587. XMoveWindow(dpy, barwin, sx, sy);
  1588. break;
  1589. case BarBot:
  1590. wah -= bh;
  1591. XMoveWindow(dpy, barwin, sx, sy + wah);
  1592. break;
  1593. case BarOff:
  1594. XMoveWindow(dpy, barwin, sx, sy - bh);
  1595. break;
  1596. }
  1597. XSync(dpy, False);
  1598. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1599. }
  1600. void
  1601. updatesizehints(Client *c) {
  1602. long msize;
  1603. XSizeHints size;
  1604. if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
  1605. size.flags = PSize;
  1606. c->flags = size.flags;
  1607. if(c->flags & PBaseSize) {
  1608. c->basew = size.base_width;
  1609. c->baseh = size.base_height;
  1610. }
  1611. else if(c->flags & PMinSize) {
  1612. c->basew = size.min_width;
  1613. c->baseh = size.min_height;
  1614. }
  1615. else
  1616. c->basew = c->baseh = 0;
  1617. if(c->flags & PResizeInc) {
  1618. c->incw = size.width_inc;
  1619. c->inch = size.height_inc;
  1620. }
  1621. else
  1622. c->incw = c->inch = 0;
  1623. if(c->flags & PMaxSize) {
  1624. c->maxw = size.max_width;
  1625. c->maxh = size.max_height;
  1626. }
  1627. else
  1628. c->maxw = c->maxh = 0;
  1629. if(c->flags & PMinSize) {
  1630. c->minw = size.min_width;
  1631. c->minh = size.min_height;
  1632. }
  1633. else if(c->flags & PBaseSize) {
  1634. c->minw = size.base_width;
  1635. c->minh = size.base_height;
  1636. }
  1637. else
  1638. c->minw = c->minh = 0;
  1639. if(c->flags & PAspect) {
  1640. c->minax = size.min_aspect.x;
  1641. c->maxax = size.max_aspect.x;
  1642. c->minay = size.min_aspect.y;
  1643. c->maxay = size.max_aspect.y;
  1644. }
  1645. else
  1646. c->minax = c->maxax = c->minay = c->maxay = 0;
  1647. c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
  1648. && c->maxw == c->minw && c->maxh == c->minh);
  1649. }
  1650. void
  1651. updatetitle(Client *c) {
  1652. if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
  1653. gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
  1654. }
  1655. /* There's no way to check accesses to destroyed windows, thus those cases are
  1656. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  1657. * default error handler, which may call exit. */
  1658. int
  1659. xerror(Display *dpy, XErrorEvent *ee) {
  1660. if(ee->error_code == BadWindow
  1661. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  1662. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  1663. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  1664. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  1665. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  1666. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
  1667. || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
  1668. return 0;
  1669. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  1670. ee->request_code, ee->error_code);
  1671. return xerrorxlib(dpy, ee); /* may call exit */
  1672. }
  1673. int
  1674. xerrordummy(Display *dsply, XErrorEvent *ee) {
  1675. return 0;
  1676. }
  1677. /* Startup Error handler to check if another window manager
  1678. * is already running. */
  1679. int
  1680. xerrorstart(Display *dsply, XErrorEvent *ee) {
  1681. otherwm = True;
  1682. return -1;
  1683. }
  1684. void
  1685. view(const char *arg) {
  1686. unsigned int i;
  1687. memcpy(prevtags, seltags, sizeof seltags);
  1688. for(i = 0; i < LENGTH(tags); i++)
  1689. seltags[i] = (NULL == arg);
  1690. seltags[idxoftag(arg)] = True;
  1691. arrange();
  1692. }
  1693. void
  1694. viewprevtag(const char *arg) {
  1695. static Bool tmp[LENGTH(tags)];
  1696. memcpy(tmp, seltags, sizeof seltags);
  1697. memcpy(seltags, prevtags, sizeof seltags);
  1698. memcpy(prevtags, tmp, sizeof seltags);
  1699. arrange();
  1700. }
  1701. void
  1702. zoom(const char *arg) {
  1703. Client *c;
  1704. if(!sel || !dozoom || sel->isfloating)
  1705. return;
  1706. if((c = sel) == nexttiled(clients))
  1707. if(!(c = nexttiled(c->next)))
  1708. return;
  1709. detach(c);
  1710. attach(c);
  1711. focus(c);
  1712. arrange();
  1713. }
  1714. int
  1715. main(int argc, char *argv[]) {
  1716. if(argc == 2 && !strcmp("-v", argv[1]))
  1717. eprint("dwm-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, "
  1718. "Jukka Salmi, Premysl Hruby, Szabolcs Nagy\n");
  1719. else if(argc != 1)
  1720. eprint("usage: dwm [-v]\n");
  1721. setlocale(LC_CTYPE, "");
  1722. if(!(dpy = XOpenDisplay(0)))
  1723. eprint("dwm: cannot open display\n");
  1724. screen = DefaultScreen(dpy);
  1725. root = RootWindow(dpy, screen);
  1726. checkotherwm();
  1727. setup();
  1728. drawbar();
  1729. scan();
  1730. run();
  1731. cleanup();
  1732. XCloseDisplay(dpy);
  1733. return 0;
  1734. }