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 a bit array to indicate the tags of a
  20. * 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. #ifdef XINERAMA
  43. #include <X11/extensions/Xinerama.h>
  44. #endif
  45. /* macros */
  46. #define MAX(a, b) ((a) > (b) ? (a) : (b))
  47. #define MIN(a, b) ((a) < (b) ? (a) : (b))
  48. #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
  49. #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
  50. #define LENGTH(x) (sizeof x / sizeof x[0])
  51. #define MAXTAGLEN 16
  52. #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
  53. #define TAGMASK ((int)((1LL << LENGTH(tags)) - 1))
  54. #define TEXTW(x) (textnw(x, strlen(x)) + dc.font.height)
  55. #define ISVISIBLE(x) (x->tags & tagset[seltags])
  56. /* enums */
  57. enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
  58. enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
  59. enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
  60. enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
  61. enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
  62. ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
  63. /* typedefs */
  64. typedef unsigned int uint;
  65. typedef unsigned long ulong;
  66. typedef union {
  67. int i;
  68. uint ui;
  69. float f;
  70. void *v;
  71. } Arg;
  72. typedef struct {
  73. uint click;
  74. uint mask;
  75. uint button;
  76. void (*func)(const Arg *arg);
  77. const Arg arg;
  78. } Button;
  79. typedef struct Client Client;
  80. struct Client {
  81. char name[256];
  82. float mina, maxa;
  83. int x, y, w, h;
  84. int basew, baseh, incw, inch, maxw, maxh, minw, minh;
  85. int bw, oldbw;
  86. uint tags;
  87. Bool isfixed, isfloating, isurgent;
  88. Client *next;
  89. Client *snext;
  90. Window win;
  91. };
  92. typedef struct {
  93. int x, y, w, h;
  94. ulong norm[ColLast];
  95. ulong sel[ColLast];
  96. Drawable drawable;
  97. GC gc;
  98. struct {
  99. int ascent;
  100. int descent;
  101. int height;
  102. XFontSet set;
  103. XFontStruct *xfont;
  104. } font;
  105. } DC; /* draw context */
  106. typedef struct {
  107. uint mod;
  108. KeySym keysym;
  109. void (*func)(const Arg *);
  110. const Arg arg;
  111. } Key;
  112. typedef struct {
  113. const char *symbol;
  114. void (*arrange)(void);
  115. } Layout;
  116. typedef struct {
  117. const char *class;
  118. const char *instance;
  119. const char *title;
  120. uint tags;
  121. Bool isfloating;
  122. } Rule;
  123. /* function declarations */
  124. static void applyrules(Client *c);
  125. static void arrange(void);
  126. static void attach(Client *c);
  127. static void attachstack(Client *c);
  128. static void buttonpress(XEvent *e);
  129. static void checkotherwm(void);
  130. static void cleanup(void);
  131. static void configure(Client *c);
  132. static void configurenotify(XEvent *e);
  133. static void configurerequest(XEvent *e);
  134. static void destroynotify(XEvent *e);
  135. static void detach(Client *c);
  136. static void detachstack(Client *c);
  137. static void drawbar(void);
  138. static void drawsquare(Bool filled, Bool empty, Bool invert, ulong col[ColLast]);
  139. static void drawtext(const char *text, ulong col[ColLast], Bool invert);
  140. static void enternotify(XEvent *e);
  141. static void eprint(const char *errstr, ...);
  142. static void expose(XEvent *e);
  143. static void focus(Client *c);
  144. static void focusin(XEvent *e);
  145. static void focusstack(const Arg *arg);
  146. static Client *getclient(Window w);
  147. static ulong getcolor(const char *colstr);
  148. static long getstate(Window w);
  149. static Bool gettextprop(Window w, Atom atom, char *text, uint size);
  150. static void grabbuttons(Client *c, Bool focused);
  151. static void grabkeys(void);
  152. static void initfont(const char *fontstr);
  153. static Bool isoccupied(uint t);
  154. static Bool isprotodel(Client *c);
  155. static Bool isurgent(uint t);
  156. static void keypress(XEvent *e);
  157. static void killclient(const Arg *arg);
  158. static void manage(Window w, XWindowAttributes *wa);
  159. static void mappingnotify(XEvent *e);
  160. static void maprequest(XEvent *e);
  161. static void monocle(void);
  162. static void movemouse(const Arg *arg);
  163. static Client *nexttiled(Client *c);
  164. static void propertynotify(XEvent *e);
  165. static void quit(const Arg *arg);
  166. static void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
  167. static void resizemouse(const Arg *arg);
  168. static void restack(void);
  169. static void run(void);
  170. static void scan(void);
  171. static void setclientstate(Client *c, long state);
  172. static void setlayout(const Arg *arg);
  173. static void setmfact(const Arg *arg);
  174. static void setup(void);
  175. static void spawn(const Arg *arg);
  176. static void tag(const Arg *arg);
  177. static int textnw(const char *text, uint len);
  178. static void tile(void);
  179. static void togglebar(const Arg *arg);
  180. static void togglefloating(const Arg *arg);
  181. static void toggletag(const Arg *arg);
  182. static void toggleview(const Arg *arg);
  183. static void unmanage(Client *c);
  184. static void unmapnotify(XEvent *e);
  185. static void updatebar(void);
  186. static void updategeom(void);
  187. static void updatesizehints(Client *c);
  188. static void updatetitle(Client *c);
  189. static void updatewmhints(Client *c);
  190. static void view(const Arg *arg);
  191. static int xerror(Display *dpy, XErrorEvent *ee);
  192. static int xerrordummy(Display *dpy, XErrorEvent *ee);
  193. static int xerrorstart(Display *dpy, XErrorEvent *ee);
  194. static void zoom(const Arg *arg);
  195. /* variables */
  196. static char stext[256];
  197. static int screen, sx, sy, sw, sh;
  198. static int by, bh, blw, wx, wy, ww, wh;
  199. static uint seltags = 0, sellt = 0;
  200. static int (*xerrorxlib)(Display *, XErrorEvent *);
  201. static uint numlockmask = 0;
  202. static void (*handler[LASTEvent]) (XEvent *) = {
  203. [ButtonPress] = buttonpress,
  204. [ConfigureRequest] = configurerequest,
  205. [ConfigureNotify] = configurenotify,
  206. [DestroyNotify] = destroynotify,
  207. [EnterNotify] = enternotify,
  208. [Expose] = expose,
  209. [FocusIn] = focusin,
  210. [KeyPress] = keypress,
  211. [MappingNotify] = mappingnotify,
  212. [MapRequest] = maprequest,
  213. [PropertyNotify] = propertynotify,
  214. [UnmapNotify] = unmapnotify
  215. };
  216. static Atom wmatom[WMLast], netatom[NetLast];
  217. static Bool otherwm, readin;
  218. static Bool running = True;
  219. static uint tagset[] = {1, 1}; /* after start, first tag is selected */
  220. static Client *clients = NULL;
  221. static Client *sel = NULL;
  222. static Client *stack = NULL;
  223. static Cursor cursor[CurLast];
  224. static Display *dpy;
  225. static DC dc = {0};
  226. static Layout *lt[] = { NULL, NULL };
  227. static Window root, barwin;
  228. /* configuration, allows nested code to access above variables */
  229. #include "config.h"
  230. /* compile-time check if all tags fit into an uint bit array. */
  231. struct NumTags { char limitexceeded[sizeof(uint) * 8 < LENGTH(tags) ? -1 : 1]; };
  232. /* function implementations */
  233. void
  234. applyrules(Client *c) {
  235. uint i;
  236. Rule *r;
  237. XClassHint ch = { 0 };
  238. /* rule matching */
  239. XGetClassHint(dpy, c->win, &ch);
  240. for(i = 0; i < LENGTH(rules); i++) {
  241. r = &rules[i];
  242. if((!r->title || strstr(c->name, r->title))
  243. && (!r->class || (ch.res_class && strstr(ch.res_class, r->class)))
  244. && (!r->instance || (ch.res_name && strstr(ch.res_name, r->instance)))) {
  245. c->isfloating = r->isfloating;
  246. c->tags |= r->tags & TAGMASK;
  247. }
  248. }
  249. if(ch.res_class)
  250. XFree(ch.res_class);
  251. if(ch.res_name)
  252. XFree(ch.res_name);
  253. if(!c->tags)
  254. c->tags = tagset[seltags];
  255. }
  256. void
  257. arrange(void) {
  258. Client *c;
  259. for(c = clients; c; c = c->next)
  260. if(ISVISIBLE(c)) {
  261. XMoveWindow(dpy, c->win, c->x, c->y);
  262. if(!lt[sellt]->arrange || c->isfloating)
  263. resize(c, c->x, c->y, c->w, c->h, True);
  264. }
  265. else {
  266. XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  267. }
  268. focus(NULL);
  269. if(lt[sellt]->arrange)
  270. lt[sellt]->arrange();
  271. restack();
  272. }
  273. void
  274. attach(Client *c) {
  275. c->next = clients;
  276. clients = c;
  277. }
  278. void
  279. attachstack(Client *c) {
  280. c->snext = stack;
  281. stack = c;
  282. }
  283. void
  284. buttonpress(XEvent *e) {
  285. uint i, x, click;
  286. Arg arg = {0};
  287. Client *c;
  288. XButtonPressedEvent *ev = &e->xbutton;
  289. click = ClkRootWin;
  290. if(ev->window == barwin) {
  291. i = x = 0;
  292. do x += TEXTW(tags[i]); while(ev->x >= x && ++i < LENGTH(tags));
  293. if(i < LENGTH(tags)) {
  294. click = ClkTagBar;
  295. arg.ui = 1 << i;
  296. }
  297. else if(ev->x < x + blw)
  298. click = ClkLtSymbol;
  299. else if(ev->x > wx + ww - TEXTW(stext))
  300. click = ClkStatusText;
  301. else
  302. click = ClkWinTitle;
  303. }
  304. else if((c = getclient(ev->window))) {
  305. focus(c);
  306. click = ClkClientWin;
  307. }
  308. for(i = 0; i < LENGTH(buttons); i++)
  309. if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
  310. && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
  311. buttons[i].func(click == ClkTagBar ? &arg : &buttons[i].arg);
  312. }
  313. void
  314. checkotherwm(void) {
  315. otherwm = False;
  316. XSetErrorHandler(xerrorstart);
  317. /* this causes an error if some other window manager is running */
  318. XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
  319. XSync(dpy, False);
  320. if(otherwm)
  321. eprint("dwm: another window manager is already running\n");
  322. XSetErrorHandler(NULL);
  323. xerrorxlib = XSetErrorHandler(xerror);
  324. XSync(dpy, False);
  325. }
  326. void
  327. cleanup(void) {
  328. Arg a = {.i = ~0};
  329. Layout foo = { "", NULL };
  330. close(STDIN_FILENO);
  331. view(&a);
  332. lt[sellt] = &foo;
  333. while(stack)
  334. unmanage(stack);
  335. if(dc.font.set)
  336. XFreeFontSet(dpy, dc.font.set);
  337. else
  338. XFreeFont(dpy, dc.font.xfont);
  339. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  340. XFreePixmap(dpy, dc.drawable);
  341. XFreeGC(dpy, dc.gc);
  342. XFreeCursor(dpy, cursor[CurNormal]);
  343. XFreeCursor(dpy, cursor[CurResize]);
  344. XFreeCursor(dpy, cursor[CurMove]);
  345. XDestroyWindow(dpy, barwin);
  346. XSync(dpy, False);
  347. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  348. }
  349. void
  350. configure(Client *c) {
  351. XConfigureEvent ce;
  352. ce.type = ConfigureNotify;
  353. ce.display = dpy;
  354. ce.event = c->win;
  355. ce.window = c->win;
  356. ce.x = c->x;
  357. ce.y = c->y;
  358. ce.width = c->w;
  359. ce.height = c->h;
  360. ce.border_width = c->bw;
  361. ce.above = None;
  362. ce.override_redirect = False;
  363. XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
  364. }
  365. void
  366. configurenotify(XEvent *e) {
  367. XConfigureEvent *ev = &e->xconfigure;
  368. if(ev->window == root && (ev->width != sw || ev->height != sh)) {
  369. sw = ev->width;
  370. sh = ev->height;
  371. updategeom();
  372. updatebar();
  373. arrange();
  374. }
  375. }
  376. void
  377. configurerequest(XEvent *e) {
  378. Client *c;
  379. XConfigureRequestEvent *ev = &e->xconfigurerequest;
  380. XWindowChanges wc;
  381. if((c = getclient(ev->window))) {
  382. if(ev->value_mask & CWBorderWidth)
  383. c->bw = ev->border_width;
  384. else if(c->isfloating || !lt[sellt]->arrange) {
  385. if(ev->value_mask & CWX)
  386. c->x = sx + ev->x;
  387. if(ev->value_mask & CWY)
  388. c->y = sy + ev->y;
  389. if(ev->value_mask & CWWidth)
  390. c->w = ev->width;
  391. if(ev->value_mask & CWHeight)
  392. c->h = ev->height;
  393. if((c->x - sx + c->w) > sw && c->isfloating)
  394. c->x = sx + (sw / 2 - c->w / 2); /* center in x direction */
  395. if((c->y - sy + c->h) > sh && c->isfloating)
  396. c->y = sy + (sh / 2 - c->h / 2); /* center in y direction */
  397. if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
  398. configure(c);
  399. if(ISVISIBLE(c))
  400. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  401. }
  402. else
  403. configure(c);
  404. }
  405. else {
  406. wc.x = ev->x;
  407. wc.y = ev->y;
  408. wc.width = ev->width;
  409. wc.height = ev->height;
  410. wc.border_width = ev->border_width;
  411. wc.sibling = ev->above;
  412. wc.stack_mode = ev->detail;
  413. XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
  414. }
  415. XSync(dpy, False);
  416. }
  417. void
  418. destroynotify(XEvent *e) {
  419. Client *c;
  420. XDestroyWindowEvent *ev = &e->xdestroywindow;
  421. if((c = getclient(ev->window)))
  422. unmanage(c);
  423. }
  424. void
  425. detach(Client *c) {
  426. Client *i;
  427. if (c != clients) {
  428. for(i = clients; i->next != c; i = i->next);
  429. i->next = c->next;
  430. }
  431. else {
  432. clients = c->next;
  433. }
  434. c->next = NULL;
  435. }
  436. void
  437. detachstack(Client *c) {
  438. Client **tc;
  439. for(tc = &stack; *tc && *tc != c; tc = &(*tc)->snext);
  440. *tc = c->snext;
  441. }
  442. void
  443. drawbar(void) {
  444. int i, x;
  445. dc.x = 0;
  446. for(i = 0; i < LENGTH(tags); i++) {
  447. dc.w = TEXTW(tags[i]);
  448. if(tagset[seltags] & 1 << i) {
  449. drawtext(tags[i], dc.sel, isurgent(i));
  450. drawsquare(sel && sel->tags & 1 << i, isoccupied(i), isurgent(i), dc.sel);
  451. }
  452. else {
  453. drawtext(tags[i], dc.norm, isurgent(i));
  454. drawsquare(sel && sel->tags & 1 << i, isoccupied(i), isurgent(i), dc.norm);
  455. }
  456. dc.x += dc.w;
  457. }
  458. if(blw > 0) {
  459. dc.w = blw;
  460. drawtext(lt[sellt]->symbol, dc.norm, False);
  461. x = dc.x + dc.w;
  462. }
  463. else
  464. x = dc.x;
  465. dc.w = TEXTW(stext);
  466. dc.x = ww - dc.w;
  467. if(dc.x < x) {
  468. dc.x = x;
  469. dc.w = ww - x;
  470. }
  471. drawtext(stext, dc.norm, False);
  472. if((dc.w = dc.x - x) > bh) {
  473. dc.x = x;
  474. if(sel) {
  475. drawtext(sel->name, dc.sel, False);
  476. drawsquare(sel->isfixed, sel->isfloating, False, dc.sel);
  477. }
  478. else
  479. drawtext(NULL, dc.norm, False);
  480. }
  481. XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, ww, bh, 0, 0);
  482. XSync(dpy, False);
  483. }
  484. void
  485. drawsquare(Bool filled, Bool empty, Bool invert, ulong col[ColLast]) {
  486. int x;
  487. XGCValues gcv;
  488. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  489. gcv.foreground = col[invert ? ColBG : ColFG];
  490. XChangeGC(dpy, dc.gc, GCForeground, &gcv);
  491. x = (dc.font.ascent + dc.font.descent + 2) / 4;
  492. r.x = dc.x + 1;
  493. r.y = dc.y + 1;
  494. if(filled) {
  495. r.width = r.height = x + 1;
  496. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  497. }
  498. else if(empty) {
  499. r.width = r.height = x;
  500. XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  501. }
  502. }
  503. void
  504. drawtext(const char *text, ulong col[ColLast], Bool invert) {
  505. int i, x, y, h, len, olen;
  506. XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  507. char buf[256];
  508. XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
  509. XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
  510. if(!text)
  511. return;
  512. olen = strlen(text);
  513. len = MIN(olen, sizeof buf);
  514. memcpy(buf, text, len);
  515. h = dc.font.ascent + dc.font.descent;
  516. y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
  517. x = dc.x + (h / 2);
  518. /* shorten text if necessary */
  519. for(; len && (i = textnw(buf, len)) > dc.w - h; len--);
  520. if(!len)
  521. return;
  522. if(len < olen)
  523. for(i = len; i && i > len - 3; buf[--i] = '.');
  524. XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
  525. if(dc.font.set)
  526. XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
  527. else
  528. XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
  529. }
  530. void
  531. enternotify(XEvent *e) {
  532. Client *c;
  533. XCrossingEvent *ev = &e->xcrossing;
  534. if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
  535. return;
  536. if((c = getclient(ev->window)))
  537. focus(c);
  538. else
  539. focus(NULL);
  540. }
  541. void
  542. eprint(const char *errstr, ...) {
  543. va_list ap;
  544. va_start(ap, errstr);
  545. vfprintf(stderr, errstr, ap);
  546. va_end(ap);
  547. exit(EXIT_FAILURE);
  548. }
  549. void
  550. expose(XEvent *e) {
  551. XExposeEvent *ev = &e->xexpose;
  552. if(ev->count == 0 && (ev->window == barwin))
  553. drawbar();
  554. }
  555. void
  556. focus(Client *c) {
  557. if(!c || !ISVISIBLE(c))
  558. for(c = stack; c && !ISVISIBLE(c); c = c->snext);
  559. if(sel && sel != c) {
  560. grabbuttons(sel, False);
  561. XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
  562. }
  563. if(c) {
  564. detachstack(c);
  565. attachstack(c);
  566. grabbuttons(c, True);
  567. XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
  568. XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  569. }
  570. else
  571. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  572. sel = c;
  573. drawbar();
  574. }
  575. void
  576. focusin(XEvent *e) { /* there are some broken focus acquiring clients */
  577. XFocusChangeEvent *ev = &e->xfocus;
  578. if(sel && ev->window != sel->win)
  579. XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
  580. }
  581. void
  582. focusstack(const Arg *arg) {
  583. Client *c = NULL, *i;
  584. if(!sel)
  585. return;
  586. if (arg->i > 0) {
  587. for(c = sel->next; c && !ISVISIBLE(c); c = c->next);
  588. if(!c)
  589. for(c = clients; c && !ISVISIBLE(c); c = c->next);
  590. }
  591. else {
  592. for(i = clients; i != sel; i = i->next)
  593. if(ISVISIBLE(i))
  594. c = i;
  595. if(!c)
  596. for(; i; i = i->next)
  597. if(ISVISIBLE(i))
  598. c = i;
  599. }
  600. if(c) {
  601. focus(c);
  602. restack();
  603. }
  604. }
  605. Client *
  606. getclient(Window w) {
  607. Client *c;
  608. for(c = clients; c && c->win != w; c = c->next);
  609. return c;
  610. }
  611. ulong
  612. getcolor(const char *colstr) {
  613. Colormap cmap = DefaultColormap(dpy, screen);
  614. XColor color;
  615. if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
  616. eprint("error, cannot allocate color '%s'\n", colstr);
  617. return color.pixel;
  618. }
  619. long
  620. getstate(Window w) {
  621. int format, status;
  622. long result = -1;
  623. unsigned char *p = NULL;
  624. ulong n, extra;
  625. Atom real;
  626. status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
  627. &real, &format, &n, &extra, (unsigned char **)&p);
  628. if(status != Success)
  629. return -1;
  630. if(n != 0)
  631. result = *p;
  632. XFree(p);
  633. return result;
  634. }
  635. Bool
  636. gettextprop(Window w, Atom atom, char *text, uint size) {
  637. char **list = NULL;
  638. int n;
  639. XTextProperty name;
  640. if(!text || size == 0)
  641. return False;
  642. text[0] = '\0';
  643. XGetTextProperty(dpy, w, &name, atom);
  644. if(!name.nitems)
  645. return False;
  646. if(name.encoding == XA_STRING)
  647. strncpy(text, (char *)name.value, size - 1);
  648. else {
  649. if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
  650. && n > 0 && *list) {
  651. strncpy(text, *list, size - 1);
  652. XFreeStringList(list);
  653. }
  654. }
  655. text[size - 1] = '\0';
  656. XFree(name.value);
  657. return True;
  658. }
  659. void
  660. grabbuttons(Client *c, Bool focused) {
  661. int i, j;
  662. uint buttons[] = { Button1, Button2, Button3 };
  663. uint modifiers[] = { MODKEY, MODKEY|LockMask, MODKEY|numlockmask, MODKEY|numlockmask|LockMask };
  664. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  665. if(focused)
  666. for(i = 0; i < LENGTH(buttons); i++)
  667. for(j = 0; j < LENGTH(modifiers); j++)
  668. XGrabButton(dpy, buttons[i], modifiers[j], c->win, False,
  669. BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
  670. else
  671. XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
  672. BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
  673. }
  674. void
  675. grabkeys(void) {
  676. uint i, j;
  677. KeyCode code;
  678. XModifierKeymap *modmap;
  679. /* init modifier map */
  680. modmap = XGetModifierMapping(dpy);
  681. for(i = 0; i < 8; i++)
  682. for(j = 0; j < modmap->max_keypermod; j++) {
  683. if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
  684. numlockmask = (1 << i);
  685. }
  686. XFreeModifiermap(modmap);
  687. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  688. for(i = 0; i < LENGTH(keys); i++) {
  689. code = XKeysymToKeycode(dpy, keys[i].keysym);
  690. XGrabKey(dpy, code, keys[i].mod, root, True,
  691. GrabModeAsync, GrabModeAsync);
  692. XGrabKey(dpy, code, keys[i].mod|LockMask, root, True,
  693. GrabModeAsync, GrabModeAsync);
  694. XGrabKey(dpy, code, keys[i].mod|numlockmask, root, True,
  695. GrabModeAsync, GrabModeAsync);
  696. XGrabKey(dpy, code, keys[i].mod|numlockmask|LockMask, root, True,
  697. GrabModeAsync, GrabModeAsync);
  698. }
  699. }
  700. void
  701. initfont(const char *fontstr) {
  702. char *def, **missing;
  703. int i, n;
  704. missing = NULL;
  705. if(dc.font.set)
  706. XFreeFontSet(dpy, dc.font.set);
  707. dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
  708. if(missing) {
  709. while(n--)
  710. fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
  711. XFreeStringList(missing);
  712. }
  713. if(dc.font.set) {
  714. XFontSetExtents *font_extents;
  715. XFontStruct **xfonts;
  716. char **font_names;
  717. dc.font.ascent = dc.font.descent = 0;
  718. font_extents = XExtentsOfFontSet(dc.font.set);
  719. n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
  720. for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
  721. dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
  722. dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
  723. xfonts++;
  724. }
  725. }
  726. else {
  727. if(dc.font.xfont)
  728. XFreeFont(dpy, dc.font.xfont);
  729. dc.font.xfont = NULL;
  730. if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
  731. && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
  732. eprint("error, cannot load font: '%s'\n", fontstr);
  733. dc.font.ascent = dc.font.xfont->ascent;
  734. dc.font.descent = dc.font.xfont->descent;
  735. }
  736. dc.font.height = dc.font.ascent + dc.font.descent;
  737. }
  738. Bool
  739. isoccupied(uint t) {
  740. Client *c;
  741. for(c = clients; c; c = c->next)
  742. if(c->tags & 1 << t)
  743. return True;
  744. return False;
  745. }
  746. Bool
  747. isprotodel(Client *c) {
  748. int i, n;
  749. Atom *protocols;
  750. Bool ret = False;
  751. if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
  752. for(i = 0; !ret && i < n; i++)
  753. if(protocols[i] == wmatom[WMDelete])
  754. ret = True;
  755. XFree(protocols);
  756. }
  757. return ret;
  758. }
  759. Bool
  760. isurgent(uint t) {
  761. Client *c;
  762. for(c = clients; c; c = c->next)
  763. if(c->isurgent && c->tags & 1 << t)
  764. return True;
  765. return False;
  766. }
  767. void
  768. keypress(XEvent *e) {
  769. uint i;
  770. KeySym keysym;
  771. XKeyEvent *ev;
  772. ev = &e->xkey;
  773. keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
  774. for(i = 0; i < LENGTH(keys); i++)
  775. if(keysym == keys[i].keysym
  776. && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
  777. && keys[i].func)
  778. keys[i].func(&(keys[i].arg));
  779. }
  780. void
  781. killclient(const Arg *arg) {
  782. XEvent ev;
  783. if(!sel)
  784. return;
  785. if(isprotodel(sel)) {
  786. ev.type = ClientMessage;
  787. ev.xclient.window = sel->win;
  788. ev.xclient.message_type = wmatom[WMProtocols];
  789. ev.xclient.format = 32;
  790. ev.xclient.data.l[0] = wmatom[WMDelete];
  791. ev.xclient.data.l[1] = CurrentTime;
  792. XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
  793. }
  794. else
  795. XKillClient(dpy, sel->win);
  796. }
  797. void
  798. manage(Window w, XWindowAttributes *wa) {
  799. Client *c, *t = NULL;
  800. Status rettrans;
  801. Window trans;
  802. XWindowChanges wc;
  803. if(!(c = calloc(1, sizeof(Client))))
  804. eprint("fatal: could not calloc() %u bytes\n", sizeof(Client));
  805. c->win = w;
  806. /* geometry */
  807. c->x = wa->x;
  808. c->y = wa->y;
  809. c->w = wa->width;
  810. c->h = wa->height;
  811. c->oldbw = wa->border_width;
  812. if(c->w == sw && c->h == sh) {
  813. c->x = sx;
  814. c->y = sy;
  815. c->bw = wa->border_width;
  816. }
  817. else {
  818. if(c->x + c->w + 2 * c->bw > sx + sw)
  819. c->x = sx + sw - c->w - 2 * c->bw;
  820. if(c->y + c->h + 2 * c->bw > sy + sh)
  821. c->y = sy + sh - c->h - 2 * c->bw;
  822. c->x = MAX(c->x, sx);
  823. /* only fix client y-offset, if the client center might cover the bar */
  824. c->y = MAX(c->y, ((by == 0) && (c->x + (c->w / 2) >= wx) && (c->x + (c->w / 2) < wx + ww)) ? bh : sy);
  825. c->bw = borderpx;
  826. }
  827. wc.border_width = c->bw;
  828. XConfigureWindow(dpy, w, CWBorderWidth, &wc);
  829. XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
  830. configure(c); /* propagates border_width, if size doesn't change */
  831. updatesizehints(c);
  832. XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
  833. grabbuttons(c, False);
  834. updatetitle(c);
  835. if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
  836. for(t = clients; t && t->win != trans; t = t->next);
  837. if(t)
  838. c->tags = t->tags;
  839. else
  840. applyrules(c);
  841. if(!c->isfloating)
  842. c->isfloating = (rettrans == Success) || c->isfixed;
  843. if(c->isfloating)
  844. XRaiseWindow(dpy, c->win);
  845. attach(c);
  846. attachstack(c);
  847. XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
  848. XMapWindow(dpy, c->win);
  849. setclientstate(c, NormalState);
  850. arrange();
  851. }
  852. void
  853. mappingnotify(XEvent *e) {
  854. XMappingEvent *ev = &e->xmapping;
  855. XRefreshKeyboardMapping(ev);
  856. if(ev->request == MappingKeyboard)
  857. grabkeys();
  858. }
  859. void
  860. maprequest(XEvent *e) {
  861. static XWindowAttributes wa;
  862. XMapRequestEvent *ev = &e->xmaprequest;
  863. if(!XGetWindowAttributes(dpy, ev->window, &wa))
  864. return;
  865. if(wa.override_redirect)
  866. return;
  867. if(!getclient(ev->window))
  868. manage(ev->window, &wa);
  869. }
  870. void
  871. monocle(void) {
  872. Client *c;
  873. for(c = nexttiled(clients); c; c = nexttiled(c->next))
  874. resize(c, wx, wy, ww, wh, resizehints);
  875. }
  876. void
  877. movemouse(const Arg *arg) {
  878. int x1, y1, ocx, ocy, di, nx, ny;
  879. uint dui;
  880. Client *c;
  881. Window dummy;
  882. XEvent ev;
  883. if(!(c = sel))
  884. return;
  885. restack();
  886. ocx = nx = c->x;
  887. ocy = ny = c->y;
  888. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  889. None, cursor[CurMove], CurrentTime) != GrabSuccess)
  890. return;
  891. XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
  892. for(;;) {
  893. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  894. switch (ev.type) {
  895. case ButtonRelease:
  896. XUngrabPointer(dpy, CurrentTime);
  897. return;
  898. case ConfigureRequest:
  899. case Expose:
  900. case MapRequest:
  901. handler[ev.type](&ev);
  902. break;
  903. case MotionNotify:
  904. XSync(dpy, False);
  905. nx = ocx + (ev.xmotion.x - x1);
  906. ny = ocy + (ev.xmotion.y - y1);
  907. if(snap && nx >= wx && nx <= wx + ww
  908. && ny >= wy && ny <= wy + wh) {
  909. if(abs(wx - nx) < snap)
  910. nx = wx;
  911. else if(abs((wx + ww) - (nx + c->w + 2 * c->bw)) < snap)
  912. nx = wx + ww - c->w - 2 * c->bw;
  913. if(abs(wy - ny) < snap)
  914. ny = wy;
  915. else if(abs((wy + wh) - (ny + c->h + 2 * c->bw)) < snap)
  916. ny = wy + wh - c->h - 2 * c->bw;
  917. if(!c->isfloating && lt[sellt]->arrange && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
  918. togglefloating(NULL);
  919. }
  920. if(!lt[sellt]->arrange || c->isfloating)
  921. resize(c, nx, ny, c->w, c->h, False);
  922. break;
  923. }
  924. }
  925. }
  926. Client *
  927. nexttiled(Client *c) {
  928. for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
  929. return c;
  930. }
  931. void
  932. propertynotify(XEvent *e) {
  933. Client *c;
  934. Window trans;
  935. XPropertyEvent *ev = &e->xproperty;
  936. if(ev->state == PropertyDelete)
  937. return; /* ignore */
  938. if((c = getclient(ev->window))) {
  939. switch (ev->atom) {
  940. default: break;
  941. case XA_WM_TRANSIENT_FOR:
  942. XGetTransientForHint(dpy, c->win, &trans);
  943. if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
  944. arrange();
  945. break;
  946. case XA_WM_NORMAL_HINTS:
  947. updatesizehints(c);
  948. break;
  949. case XA_WM_HINTS:
  950. updatewmhints(c);
  951. drawbar();
  952. break;
  953. }
  954. if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
  955. updatetitle(c);
  956. if(c == sel)
  957. drawbar();
  958. }
  959. }
  960. }
  961. void
  962. quit(const Arg *arg) {
  963. readin = running = False;
  964. }
  965. void
  966. resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
  967. XWindowChanges wc;
  968. if(sizehints) {
  969. /* set minimum possible */
  970. w = MAX(1, w);
  971. h = MAX(1, h);
  972. /* temporarily remove base dimensions */
  973. w -= c->basew;
  974. h -= c->baseh;
  975. /* adjust for aspect limits */
  976. if(c->mina > 0 && c->maxa > 0) {
  977. if(c->maxa < (float) w/h)
  978. w = h * c->maxa;
  979. else if(c->mina > (float) h/w)
  980. h = w * c->mina;
  981. }
  982. /* adjust for increment value */
  983. if(c->incw)
  984. w -= w % c->incw;
  985. if(c->inch)
  986. h -= h % c->inch;
  987. /* restore base dimensions */
  988. w += c->basew;
  989. h += c->baseh;
  990. w = MAX(w, c->minw);
  991. h = MAX(h, c->minh);
  992. if(c->maxw)
  993. w = MIN(w, c->maxw);
  994. if(c->maxh)
  995. h = MIN(h, c->maxh);
  996. }
  997. if(w <= 0 || h <= 0)
  998. return;
  999. if(x > sx + sw)
  1000. x = sw - w - 2 * c->bw;
  1001. if(y > sy + sh)
  1002. y = sh - h - 2 * c->bw;
  1003. if(x + w + 2 * c->bw < sx)
  1004. x = sx;
  1005. if(y + h + 2 * c->bw < sy)
  1006. y = sy;
  1007. if(h < bh)
  1008. h = bh;
  1009. if(w < bh)
  1010. w = bh;
  1011. if(c->x != x || c->y != y || c->w != w || c->h != h) {
  1012. c->x = wc.x = x;
  1013. c->y = wc.y = y;
  1014. c->w = wc.width = w;
  1015. c->h = wc.height = h;
  1016. wc.border_width = c->bw;
  1017. XConfigureWindow(dpy, c->win,
  1018. CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
  1019. configure(c);
  1020. XSync(dpy, False);
  1021. }
  1022. }
  1023. void
  1024. resizemouse(const Arg *arg) {
  1025. int ocx, ocy;
  1026. int nw, nh;
  1027. Client *c;
  1028. XEvent ev;
  1029. if(!(c = sel))
  1030. return;
  1031. restack();
  1032. ocx = c->x;
  1033. ocy = c->y;
  1034. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1035. None, cursor[CurResize], CurrentTime) != GrabSuccess)
  1036. return;
  1037. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1038. for(;;) {
  1039. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask , &ev);
  1040. switch(ev.type) {
  1041. case ButtonRelease:
  1042. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
  1043. c->w + c->bw - 1, c->h + c->bw - 1);
  1044. XUngrabPointer(dpy, CurrentTime);
  1045. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1046. return;
  1047. case ConfigureRequest:
  1048. case Expose:
  1049. case MapRequest:
  1050. handler[ev.type](&ev);
  1051. break;
  1052. case MotionNotify:
  1053. XSync(dpy, False);
  1054. nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
  1055. nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
  1056. if(snap && nw >= wx && nw <= wx + ww
  1057. && nh >= wy && nh <= wy + wh) {
  1058. if(!c->isfloating && lt[sellt]->arrange
  1059. && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
  1060. togglefloating(NULL);
  1061. }
  1062. if(!lt[sellt]->arrange || c->isfloating)
  1063. resize(c, c->x, c->y, nw, nh, True);
  1064. break;
  1065. }
  1066. }
  1067. }
  1068. void
  1069. restack(void) {
  1070. Client *c;
  1071. XEvent ev;
  1072. XWindowChanges wc;
  1073. drawbar();
  1074. if(!sel)
  1075. return;
  1076. if(sel->isfloating || !lt[sellt]->arrange)
  1077. XRaiseWindow(dpy, sel->win);
  1078. if(lt[sellt]->arrange) {
  1079. wc.stack_mode = Below;
  1080. wc.sibling = barwin;
  1081. for(c = stack; c; c = c->snext)
  1082. if(!c->isfloating && ISVISIBLE(c)) {
  1083. XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
  1084. wc.sibling = c->win;
  1085. }
  1086. }
  1087. XSync(dpy, False);
  1088. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1089. }
  1090. void
  1091. run(void) {
  1092. char *p;
  1093. char sbuf[sizeof stext];
  1094. fd_set rd;
  1095. int r, xfd;
  1096. uint len, offset;
  1097. XEvent ev;
  1098. /* main event loop, also reads status text from stdin */
  1099. XSync(dpy, False);
  1100. xfd = ConnectionNumber(dpy);
  1101. readin = True;
  1102. offset = 0;
  1103. len = sizeof stext - 1;
  1104. sbuf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
  1105. while(running) {
  1106. FD_ZERO(&rd);
  1107. if(readin)
  1108. FD_SET(STDIN_FILENO, &rd);
  1109. FD_SET(xfd, &rd);
  1110. if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
  1111. if(errno == EINTR)
  1112. continue;
  1113. eprint("select failed\n");
  1114. }
  1115. if(FD_ISSET(STDIN_FILENO, &rd)) {
  1116. switch((r = read(STDIN_FILENO, sbuf + offset, len - offset))) {
  1117. case -1:
  1118. strncpy(stext, strerror(errno), len);
  1119. readin = False;
  1120. break;
  1121. case 0:
  1122. strncpy(stext, "EOF", 4);
  1123. readin = False;
  1124. break;
  1125. default:
  1126. for(p = sbuf + offset; r > 0; p++, r--, offset++)
  1127. if(*p == '\n' || *p == '\0') {
  1128. *p = '\0';
  1129. strncpy(stext, sbuf, len);
  1130. p += r - 1; /* p is sbuf + offset + r - 1 */
  1131. for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
  1132. offset = r;
  1133. if(r)
  1134. memmove(sbuf, p - r + 1, r);
  1135. break;
  1136. }
  1137. break;
  1138. }
  1139. drawbar();
  1140. }
  1141. while(XPending(dpy)) {
  1142. XNextEvent(dpy, &ev);
  1143. if(handler[ev.type])
  1144. (handler[ev.type])(&ev); /* call handler */
  1145. }
  1146. }
  1147. }
  1148. void
  1149. scan(void) {
  1150. uint i, num;
  1151. Window *wins, d1, d2;
  1152. XWindowAttributes wa;
  1153. wins = NULL;
  1154. if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  1155. for(i = 0; i < num; i++) {
  1156. if(!XGetWindowAttributes(dpy, wins[i], &wa)
  1157. || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  1158. continue;
  1159. if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
  1160. manage(wins[i], &wa);
  1161. }
  1162. for(i = 0; i < num; i++) { /* now the transients */
  1163. if(!XGetWindowAttributes(dpy, wins[i], &wa))
  1164. continue;
  1165. if(XGetTransientForHint(dpy, wins[i], &d1)
  1166. && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
  1167. manage(wins[i], &wa);
  1168. }
  1169. }
  1170. if(wins)
  1171. XFree(wins);
  1172. }
  1173. void
  1174. setclientstate(Client *c, long state) {
  1175. long data[] = {state, None};
  1176. XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
  1177. PropModeReplace, (unsigned char *)data, 2);
  1178. }
  1179. void
  1180. setlayout(const Arg *arg) {
  1181. if(!arg || !arg->v || arg->v != lt[sellt])
  1182. sellt ^= 1;
  1183. if(arg && arg->v)
  1184. lt[sellt] = (Layout *)arg->v;
  1185. if(sel)
  1186. arrange();
  1187. else
  1188. drawbar();
  1189. }
  1190. /* arg > 1.0 will set mfact absolutly */
  1191. void
  1192. setmfact(const Arg *arg) {
  1193. float f;
  1194. if(!arg || !lt[sellt]->arrange)
  1195. return;
  1196. f = arg->f < 1.0 ? arg->f + mfact : arg->f - 1.0;
  1197. if(f < 0.1 || f > 0.9)
  1198. return;
  1199. mfact = f;
  1200. arrange();
  1201. }
  1202. void
  1203. setup(void) {
  1204. uint i;
  1205. int w;
  1206. XSetWindowAttributes wa;
  1207. /* init screen */
  1208. screen = DefaultScreen(dpy);
  1209. root = RootWindow(dpy, screen);
  1210. initfont(font);
  1211. sx = 0;
  1212. sy = 0;
  1213. sw = DisplayWidth(dpy, screen);
  1214. sh = DisplayHeight(dpy, screen);
  1215. bh = dc.h = dc.font.height + 2;
  1216. lt[0] = &layouts[0];
  1217. lt[1] = &layouts[1 % LENGTH(layouts)];
  1218. updategeom();
  1219. /* init atoms */
  1220. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  1221. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  1222. wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
  1223. wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
  1224. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  1225. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  1226. /* init cursors */
  1227. wa.cursor = cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
  1228. cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
  1229. cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
  1230. /* init appearance */
  1231. dc.norm[ColBorder] = getcolor(normbordercolor);
  1232. dc.norm[ColBG] = getcolor(normbgcolor);
  1233. dc.norm[ColFG] = getcolor(normfgcolor);
  1234. dc.sel[ColBorder] = getcolor(selbordercolor);
  1235. dc.sel[ColBG] = getcolor(selbgcolor);
  1236. dc.sel[ColFG] = getcolor(selfgcolor);
  1237. dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
  1238. dc.gc = XCreateGC(dpy, root, 0, 0);
  1239. XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
  1240. if(!dc.font.set)
  1241. XSetFont(dpy, dc.gc, dc.font.xfont->fid);
  1242. /* init bar */
  1243. for(blw = i = 0; LENGTH(layouts) > 1 && i < LENGTH(layouts); i++) {
  1244. w = TEXTW(layouts[i].symbol);
  1245. blw = MAX(blw, w);
  1246. }
  1247. wa.override_redirect = 1;
  1248. wa.background_pixmap = ParentRelative;
  1249. wa.event_mask = ButtonPressMask|ExposureMask;
  1250. barwin = XCreateWindow(dpy, root, wx, by, ww, bh, 0, DefaultDepth(dpy, screen),
  1251. CopyFromParent, DefaultVisual(dpy, screen),
  1252. CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
  1253. XDefineCursor(dpy, barwin, cursor[CurNormal]);
  1254. XMapRaised(dpy, barwin);
  1255. strcpy(stext, "dwm-"VERSION);
  1256. drawbar();
  1257. /* EWMH support per view */
  1258. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  1259. PropModeReplace, (unsigned char *) netatom, NetLast);
  1260. /* select for events */
  1261. wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
  1262. |EnterWindowMask|LeaveWindowMask|StructureNotifyMask;
  1263. XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
  1264. XSelectInput(dpy, root, wa.event_mask);
  1265. /* grab keys */
  1266. grabkeys();
  1267. }
  1268. void
  1269. spawn(const Arg *arg) {
  1270. /* The double-fork construct avoids zombie processes and keeps the code
  1271. * clean from stupid signal handlers. */
  1272. if(fork() == 0) {
  1273. if(fork() == 0) {
  1274. if(dpy)
  1275. close(ConnectionNumber(dpy));
  1276. setsid();
  1277. execvp(((char **)arg->v)[0], (char **)arg->v);
  1278. fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
  1279. perror(" failed");
  1280. }
  1281. exit(0);
  1282. }
  1283. wait(0);
  1284. }
  1285. void
  1286. tag(const Arg *arg) {
  1287. if(sel && arg->ui & TAGMASK) {
  1288. sel->tags = arg->ui & TAGMASK;
  1289. arrange();
  1290. }
  1291. }
  1292. int
  1293. textnw(const char *text, uint len) {
  1294. XRectangle r;
  1295. if(dc.font.set) {
  1296. XmbTextExtents(dc.font.set, text, len, NULL, &r);
  1297. return r.width;
  1298. }
  1299. return XTextWidth(dc.font.xfont, text, len);
  1300. }
  1301. void
  1302. tile(void) {
  1303. int x, y, h, w, mw;
  1304. uint i, n;
  1305. Client *c;
  1306. for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next), n++);
  1307. if(n == 0)
  1308. return;
  1309. /* master */
  1310. c = nexttiled(clients);
  1311. mw = mfact * ww;
  1312. resize(c, wx, wy, (n == 1 ? ww : mw) - 2 * c->bw, wh - 2 * c->bw, resizehints);
  1313. if(--n == 0)
  1314. return;
  1315. /* tile stack */
  1316. x = (wx + mw > c->x + c->w) ? c->x + c->w + 2 * c->bw : wx + mw;
  1317. y = wy;
  1318. w = (wx + mw > c->x + c->w) ? wx + ww - x : ww - mw;
  1319. h = wh / n;
  1320. if(h < bh)
  1321. h = wh;
  1322. for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
  1323. resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
  1324. ? (wy + wh) - y : h) - 2 * c->bw, resizehints);
  1325. if(h != wh)
  1326. y = c->y + c->h + 2 * c->bw;
  1327. }
  1328. }
  1329. void
  1330. togglebar(const Arg *arg) {
  1331. showbar = !showbar;
  1332. updategeom();
  1333. updatebar();
  1334. arrange();
  1335. }
  1336. void
  1337. togglefloating(const Arg *arg) {
  1338. if(!sel)
  1339. return;
  1340. sel->isfloating = !sel->isfloating || sel->isfixed;
  1341. if(sel->isfloating)
  1342. resize(sel, sel->x, sel->y, sel->w, sel->h, True);
  1343. arrange();
  1344. }
  1345. void
  1346. toggletag(const Arg *arg) {
  1347. uint mask = sel->tags ^ (arg->ui & TAGMASK);
  1348. if(sel && mask) {
  1349. sel->tags = mask;
  1350. arrange();
  1351. }
  1352. }
  1353. void
  1354. toggleview(const Arg *arg) {
  1355. uint mask = tagset[seltags] ^ (arg->ui & TAGMASK);
  1356. if(mask) {
  1357. tagset[seltags] = mask;
  1358. arrange();
  1359. }
  1360. }
  1361. void
  1362. unmanage(Client *c) {
  1363. XWindowChanges wc;
  1364. wc.border_width = c->oldbw;
  1365. /* The server grab construct avoids race conditions. */
  1366. XGrabServer(dpy);
  1367. XSetErrorHandler(xerrordummy);
  1368. XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
  1369. detach(c);
  1370. detachstack(c);
  1371. if(sel == c)
  1372. focus(NULL);
  1373. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  1374. setclientstate(c, WithdrawnState);
  1375. free(c);
  1376. XSync(dpy, False);
  1377. XSetErrorHandler(xerror);
  1378. XUngrabServer(dpy);
  1379. arrange();
  1380. }
  1381. void
  1382. unmapnotify(XEvent *e) {
  1383. Client *c;
  1384. XUnmapEvent *ev = &e->xunmap;
  1385. if((c = getclient(ev->window)))
  1386. unmanage(c);
  1387. }
  1388. void
  1389. updatebar(void) {
  1390. if(dc.drawable != 0)
  1391. XFreePixmap(dpy, dc.drawable);
  1392. dc.drawable = XCreatePixmap(dpy, root, ww, bh, DefaultDepth(dpy, screen));
  1393. XMoveResizeWindow(dpy, barwin, wx, by, ww, bh);
  1394. }
  1395. void
  1396. updategeom(void) {
  1397. #ifdef XINERAMA
  1398. int i;
  1399. XineramaScreenInfo *info = NULL;
  1400. /* window area geometry */
  1401. if(XineramaIsActive(dpy)) {
  1402. info = XineramaQueryScreens(dpy, &i);
  1403. wx = info[xidx].x_org;
  1404. wy = showbar && topbar ? info[xidx].y_org + bh : info[xidx].y_org;
  1405. ww = info[xidx].width;
  1406. wh = showbar ? info[xidx].height - bh : info[xidx].height;
  1407. XFree(info);
  1408. }
  1409. else
  1410. #endif
  1411. {
  1412. wx = sx;
  1413. wy = showbar && topbar ? sy + bh : sy;
  1414. ww = sw;
  1415. wh = showbar ? sh - bh : sh;
  1416. }
  1417. /* bar position */
  1418. by = showbar ? (topbar ? wy - bh : wy + wh) : -bh;
  1419. }
  1420. void
  1421. updatesizehints(Client *c) {
  1422. long msize;
  1423. XSizeHints size;
  1424. XGetWMNormalHints(dpy, c->win, &size, &msize);
  1425. if(size.flags & PBaseSize) {
  1426. c->basew = size.base_width;
  1427. c->baseh = size.base_height;
  1428. }
  1429. else if(size.flags & PMinSize) {
  1430. c->basew = size.min_width;
  1431. c->baseh = size.min_height;
  1432. }
  1433. else
  1434. c->basew = c->baseh = 0;
  1435. if(size.flags & PResizeInc) {
  1436. c->incw = size.width_inc;
  1437. c->inch = size.height_inc;
  1438. }
  1439. else
  1440. c->incw = c->inch = 0;
  1441. if(size.flags & PMaxSize) {
  1442. c->maxw = size.max_width;
  1443. c->maxh = size.max_height;
  1444. }
  1445. else
  1446. c->maxw = c->maxh = 0;
  1447. if(size.flags & PMinSize) {
  1448. c->minw = size.min_width;
  1449. c->minh = size.min_height;
  1450. }
  1451. else if(size.flags & PBaseSize) {
  1452. c->minw = size.base_width;
  1453. c->minh = size.base_height;
  1454. }
  1455. else
  1456. c->minw = c->minh = 0;
  1457. if(size.flags & PAspect) {
  1458. c->mina = (float)size.min_aspect.y / (float)size.min_aspect.x;
  1459. c->maxa = (float)size.max_aspect.x / (float)size.max_aspect.y;
  1460. }
  1461. else
  1462. c->maxa = c->mina = 0.0;
  1463. c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
  1464. && c->maxw == c->minw && c->maxh == c->minh);
  1465. }
  1466. void
  1467. updatetitle(Client *c) {
  1468. if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
  1469. gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
  1470. }
  1471. void
  1472. updatewmhints(Client *c) {
  1473. XWMHints *wmh;
  1474. if((wmh = XGetWMHints(dpy, c->win))) {
  1475. if(c == sel)
  1476. sel->isurgent = False;
  1477. else
  1478. c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
  1479. XFree(wmh);
  1480. }
  1481. }
  1482. void
  1483. view(const Arg *arg) {
  1484. seltags ^= 1; /* toggle sel tagset */
  1485. if(arg && (arg->ui & TAGMASK))
  1486. tagset[seltags] = arg->i & TAGMASK;
  1487. arrange();
  1488. }
  1489. /* There's no way to check accesses to destroyed windows, thus those cases are
  1490. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  1491. * default error handler, which may call exit. */
  1492. int
  1493. xerror(Display *dpy, XErrorEvent *ee) {
  1494. if(ee->error_code == BadWindow
  1495. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  1496. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  1497. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  1498. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  1499. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  1500. || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
  1501. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
  1502. || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
  1503. return 0;
  1504. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  1505. ee->request_code, ee->error_code);
  1506. return xerrorxlib(dpy, ee); /* may call exit */
  1507. }
  1508. int
  1509. xerrordummy(Display *dpy, XErrorEvent *ee) {
  1510. return 0;
  1511. }
  1512. /* Startup Error handler to check if another window manager
  1513. * is already running. */
  1514. int
  1515. xerrorstart(Display *dpy, XErrorEvent *ee) {
  1516. otherwm = True;
  1517. return -1;
  1518. }
  1519. void
  1520. zoom(const Arg *arg) {
  1521. Client *c = sel;
  1522. if(!lt[sellt]->arrange || lt[sellt]->arrange == monocle || (sel && sel->isfloating))
  1523. return;
  1524. if(c == nexttiled(clients))
  1525. if(!c || !(c = nexttiled(c->next)))
  1526. return;
  1527. detach(c);
  1528. attach(c);
  1529. focus(c);
  1530. arrange();
  1531. }
  1532. int
  1533. main(int argc, char *argv[]) {
  1534. if(argc == 2 && !strcmp("-v", argv[1]))
  1535. eprint("dwm-"VERSION", © 2006-2008 dwm engineers, see LICENSE for details\n");
  1536. else if(argc != 1)
  1537. eprint("usage: dwm [-v]\n");
  1538. setlocale(LC_CTYPE, "");
  1539. if(!(dpy = XOpenDisplay(0)))
  1540. eprint("dwm: cannot open display\n");
  1541. checkotherwm();
  1542. setup();
  1543. scan();
  1544. run();
  1545. cleanup();
  1546. XCloseDisplay(dpy);
  1547. return 0;
  1548. }