Configuration of dwm for Mac Computers
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  1. /* See LICENSE file for copyright and license details.
  2. *
  3. * dynamic window manager is designed like any other X client as well. It is
  4. * driven through handling X events. In contrast to other X clients, a window
  5. * manager selects for SubstructureRedirectMask on the root window, to receive
  6. * events about window (dis-)appearance. Only one X connection at a time is
  7. * allowed to select for this event mask.
  8. *
  9. * The event handlers of dwm are organized in an array which is accessed
  10. * whenever a new event has been fetched. This allows event dispatching
  11. * in O(1) time.
  12. *
  13. * Each child of the root window is called a client, except windows which have
  14. * set the override_redirect flag. Clients are organized in a linked client
  15. * list on each monitor, the focus history is remembered through a stack list
  16. * on each monitor. Each client contains a bit array to indicate the tags of a
  17. * client.
  18. *
  19. * Keys and tagging rules are organized as arrays and defined in config.h.
  20. *
  21. * To understand everything else, start reading main().
  22. */
  23. #include <errno.h>
  24. #include <locale.h>
  25. #include <stdarg.h>
  26. #include <signal.h>
  27. #include <stdio.h>
  28. #include <stdlib.h>
  29. #include <string.h>
  30. #include <unistd.h>
  31. #include <sys/types.h>
  32. #include <sys/wait.h>
  33. #include <X11/cursorfont.h>
  34. #include <X11/keysym.h>
  35. #include <X11/Xatom.h>
  36. #include <X11/Xlib.h>
  37. #include <X11/Xproto.h>
  38. #include <X11/Xutil.h>
  39. #include <X11/XKBlib.h>
  40. #include <fontconfig/fontconfig.h>
  41. #include <X11/Xft/Xft.h>
  42. #ifdef XINERAMA
  43. #include <X11/extensions/Xinerama.h>
  44. #endif /* XINERAMA */
  45. #include "draw.h"
  46. /* macros */
  47. #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
  48. #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
  49. #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
  50. * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
  51. #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
  52. #define LENGTH(X) (sizeof X / sizeof X[0])
  53. #define MAX(A, B) ((A) > (B) ? (A) : (B))
  54. #define MIN(A, B) ((A) < (B) ? (A) : (B))
  55. #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
  56. #define WIDTH(X) ((X)->w + 2 * (X)->bw)
  57. #define HEIGHT(X) ((X)->h + 2 * (X)->bw)
  58. #define TAGMASK ((1 << LENGTH(tags)) - 1)
  59. #define TEXTW(X) (textnw(X, strlen(X)) + dc.font.height)
  60. /* enums */
  61. enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
  62. enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
  63. enum { NetSupported, NetWMName, NetWMState,
  64. NetWMFullscreen, NetActiveWindow, NetWMWindowType,
  65. NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
  66. enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
  67. enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
  68. ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
  69. typedef union {
  70. int i;
  71. unsigned int ui;
  72. float f;
  73. const void *v;
  74. } Arg;
  75. typedef struct {
  76. unsigned int click;
  77. unsigned int mask;
  78. unsigned int button;
  79. void (*func)(const Arg *arg);
  80. const Arg arg;
  81. } Button;
  82. typedef struct Monitor Monitor;
  83. typedef struct Client Client;
  84. struct Client {
  85. char name[256];
  86. float mina, maxa;
  87. int x, y, w, h;
  88. int oldx, oldy, oldw, oldh;
  89. int basew, baseh, incw, inch, maxw, maxh, minw, minh;
  90. int bw, oldbw;
  91. unsigned int tags;
  92. Bool isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
  93. Client *next;
  94. Client *snext;
  95. Monitor *mon;
  96. Window win;
  97. };
  98. typedef struct {
  99. int x, y, w, h;
  100. XftColor norm[ColLast];
  101. XftColor sel[ColLast];
  102. Drawable drawable;
  103. GC gc;
  104. struct {
  105. int ascent;
  106. int descent;
  107. int height;
  108. XftFont *xfont;
  109. } font;
  110. } DC; /* draw context */
  111. typedef struct {
  112. unsigned int mod;
  113. KeySym keysym;
  114. void (*func)(const Arg *);
  115. const Arg arg;
  116. } Key;
  117. typedef struct {
  118. const char *symbol;
  119. void (*arrange)(Monitor *);
  120. } Layout;
  121. struct Monitor {
  122. char ltsymbol[16];
  123. float mfact;
  124. int nmaster;
  125. int num;
  126. int by; /* bar geometry */
  127. int mx, my, mw, mh; /* screen size */
  128. int wx, wy, ww, wh; /* window area */
  129. unsigned int seltags;
  130. unsigned int sellt;
  131. unsigned int tagset[2];
  132. Bool showbar;
  133. Bool topbar;
  134. Client *clients;
  135. Client *sel;
  136. Client *stack;
  137. Monitor *next;
  138. Window barwin;
  139. const Layout *lt[2];
  140. };
  141. typedef struct {
  142. const char *class;
  143. const char *instance;
  144. const char *title;
  145. unsigned int tags;
  146. Bool isfloating;
  147. int monitor;
  148. } Rule;
  149. /* function declarations */
  150. static void applyrules(Client *c);
  151. static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
  152. static void arrange(Monitor *m);
  153. static void arrangemon(Monitor *m);
  154. static void attach(Client *c);
  155. static void attachstack(Client *c);
  156. static void buttonpress(XEvent *e);
  157. static void checkotherwm(void);
  158. static void cleanup(void);
  159. static void cleanupmon(Monitor *mon);
  160. static void clearurgent(Client *c);
  161. static void clientmessage(XEvent *e);
  162. static void configure(Client *c);
  163. static void configurenotify(XEvent *e);
  164. static void configurerequest(XEvent *e);
  165. static Monitor *createmon(void);
  166. static void destroynotify(XEvent *e);
  167. static void detach(Client *c);
  168. static void detachstack(Client *c);
  169. static void die(const char *errstr, ...);
  170. static Monitor *dirtomon(int dir);
  171. static void drawbar(Monitor *m);
  172. static void drawbars(void);
  173. static void drawsquare(Bool filled, Bool empty, Bool invert, XftColor col[ColLast]);
  174. static void drawtext(const char *text, XftColor col[ColLast], Bool invert);
  175. static void enternotify(XEvent *e);
  176. static void expose(XEvent *e);
  177. static void focus(Client *c);
  178. static void focusin(XEvent *e);
  179. static void focusmon(const Arg *arg);
  180. static void focusstack(const Arg *arg);
  181. static XftColor getcolor(const char *colstr);
  182. static Bool getrootptr(int *x, int *y);
  183. static long getstate(Window w);
  184. static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
  185. static void grabbuttons(Client *c, Bool focused);
  186. static void grabkeys(void);
  187. static void incnmaster(const Arg *arg);
  188. static void initfont(const char *fontstr);
  189. static void keypress(XEvent *e);
  190. static void killclient(const Arg *arg);
  191. static void manage(Window w, XWindowAttributes *wa);
  192. static void mappingnotify(XEvent *e);
  193. static void maprequest(XEvent *e);
  194. static void monocle(Monitor *m);
  195. static void motionnotify(XEvent *e);
  196. static void movemouse(const Arg *arg);
  197. static Client *nexttiled(Client *c);
  198. static void pop(Client *);
  199. static void propertynotify(XEvent *e);
  200. static void quit(const Arg *arg);
  201. static Monitor *recttomon(int x, int y, int w, int h);
  202. static void resize(Client *c, int x, int y, int w, int h, Bool interact);
  203. static void resizeclient(Client *c, int x, int y, int w, int h);
  204. static void resizemouse(const Arg *arg);
  205. static void restack(Monitor *m);
  206. static void run(void);
  207. static void scan(void);
  208. static Bool sendevent(Client *c, Atom proto);
  209. static void sendmon(Client *c, Monitor *m);
  210. static void setclientstate(Client *c, long state);
  211. static void setfocus(Client *c);
  212. static void setfullscreen(Client *c, Bool fullscreen);
  213. static void setlayout(const Arg *arg);
  214. static void setmfact(const Arg *arg);
  215. static void setup(void);
  216. static void showhide(Client *c);
  217. static void sigchld(int unused);
  218. static void spawn(const Arg *arg);
  219. static void tag(const Arg *arg);
  220. static void tagmon(const Arg *arg);
  221. static int textnw(const char *text, unsigned int len);
  222. static void tile(Monitor *);
  223. static void togglebar(const Arg *arg);
  224. static void togglefloating(const Arg *arg);
  225. static void toggletag(const Arg *arg);
  226. static void toggleview(const Arg *arg);
  227. static void unfocus(Client *c, Bool setfocus);
  228. static void unmanage(Client *c, Bool destroyed);
  229. static void unmapnotify(XEvent *e);
  230. static Bool updategeom(void);
  231. static void updatebarpos(Monitor *m);
  232. static void updatebars(void);
  233. static void updateclientlist(void);
  234. static void updatenumlockmask(void);
  235. static void updatesizehints(Client *c);
  236. static void updatestatus(void);
  237. static void updatewindowtype(Client *c);
  238. static void updatetitle(Client *c);
  239. static void updatewmhints(Client *c);
  240. static void view(const Arg *arg);
  241. static Client *wintoclient(Window w);
  242. static Monitor *wintomon(Window w);
  243. static int xerror(Display *dpy, XErrorEvent *ee);
  244. static int xerrordummy(Display *dpy, XErrorEvent *ee);
  245. static int xerrorstart(Display *dpy, XErrorEvent *ee);
  246. static void zoom(const Arg *arg);
  247. /* variables */
  248. static const char broken[] = "broken";
  249. static char stext[256];
  250. static int screen;
  251. static int sw, sh; /* X display screen geometry width, height */
  252. static int bh, blw = 0; /* bar geometry */
  253. static int (*xerrorxlib)(Display *, XErrorEvent *);
  254. static unsigned int numlockmask = 0;
  255. static void (*handler[LASTEvent]) (XEvent *) = {
  256. [ButtonPress] = buttonpress,
  257. [ClientMessage] = clientmessage,
  258. [ConfigureRequest] = configurerequest,
  259. [ConfigureNotify] = configurenotify,
  260. [DestroyNotify] = destroynotify,
  261. [EnterNotify] = enternotify,
  262. [Expose] = expose,
  263. [FocusIn] = focusin,
  264. [KeyPress] = keypress,
  265. [MappingNotify] = mappingnotify,
  266. [MapRequest] = maprequest,
  267. [MotionNotify] = motionnotify,
  268. [PropertyNotify] = propertynotify,
  269. [UnmapNotify] = unmapnotify
  270. };
  271. static Atom wmatom[WMLast], netatom[NetLast];
  272. static Bool running = True, usexkb;
  273. static Cursor cursor[CurLast];
  274. static Display *dpy;
  275. static DC dc;
  276. static Monitor *mons = NULL, *selmon = NULL;
  277. static Window root;
  278. /* configuration, allows nested code to access above variables */
  279. #include "config.h"
  280. /* compile-time check if all tags fit into an unsigned int bit array. */
  281. struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
  282. /* function implementations */
  283. void
  284. applyrules(Client *c) {
  285. const char *class, *instance;
  286. unsigned int i;
  287. const Rule *r;
  288. Monitor *m;
  289. XClassHint ch = { NULL, NULL };
  290. /* rule matching */
  291. c->isfloating = c->tags = 0;
  292. XGetClassHint(dpy, c->win, &ch);
  293. class = ch.res_class ? ch.res_class : broken;
  294. instance = ch.res_name ? ch.res_name : broken;
  295. for(i = 0; i < LENGTH(rules); i++) {
  296. r = &rules[i];
  297. if((!r->title || strstr(c->name, r->title))
  298. && (!r->class || strstr(class, r->class))
  299. && (!r->instance || strstr(instance, r->instance)))
  300. {
  301. c->isfloating = r->isfloating;
  302. c->tags |= r->tags;
  303. for(m = mons; m && m->num != r->monitor; m = m->next);
  304. if(m)
  305. c->mon = m;
  306. }
  307. }
  308. if(ch.res_class)
  309. XFree(ch.res_class);
  310. if(ch.res_name)
  311. XFree(ch.res_name);
  312. c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
  313. }
  314. Bool
  315. applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
  316. Bool baseismin;
  317. Monitor *m = c->mon;
  318. /* set minimum possible */
  319. *w = MAX(1, *w);
  320. *h = MAX(1, *h);
  321. if(interact) {
  322. if(*x > sw)
  323. *x = sw - WIDTH(c);
  324. if(*y > sh)
  325. *y = sh - HEIGHT(c);
  326. if(*x + *w + 2 * c->bw < 0)
  327. *x = 0;
  328. if(*y + *h + 2 * c->bw < 0)
  329. *y = 0;
  330. }
  331. else {
  332. if(*x >= m->wx + m->ww)
  333. *x = m->wx + m->ww - WIDTH(c);
  334. if(*y >= m->wy + m->wh)
  335. *y = m->wy + m->wh - HEIGHT(c);
  336. if(*x + *w + 2 * c->bw <= m->wx)
  337. *x = m->wx;
  338. if(*y + *h + 2 * c->bw <= m->wy)
  339. *y = m->wy;
  340. }
  341. if(*h < bh)
  342. *h = bh;
  343. if(*w < bh)
  344. *w = bh;
  345. if(resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
  346. /* see last two sentences in ICCCM 4.1.2.3 */
  347. baseismin = c->basew == c->minw && c->baseh == c->minh;
  348. if(!baseismin) { /* temporarily remove base dimensions */
  349. *w -= c->basew;
  350. *h -= c->baseh;
  351. }
  352. /* adjust for aspect limits */
  353. if(c->mina > 0 && c->maxa > 0) {
  354. if(c->maxa < (float)*w / *h)
  355. *w = *h * c->maxa + 0.5;
  356. else if(c->mina < (float)*h / *w)
  357. *h = *w * c->mina + 0.5;
  358. }
  359. if(baseismin) { /* increment calculation requires this */
  360. *w -= c->basew;
  361. *h -= c->baseh;
  362. }
  363. /* adjust for increment value */
  364. if(c->incw)
  365. *w -= *w % c->incw;
  366. if(c->inch)
  367. *h -= *h % c->inch;
  368. /* restore base dimensions */
  369. *w = MAX(*w + c->basew, c->minw);
  370. *h = MAX(*h + c->baseh, c->minh);
  371. if(c->maxw)
  372. *w = MIN(*w, c->maxw);
  373. if(c->maxh)
  374. *h = MIN(*h, c->maxh);
  375. }
  376. return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
  377. }
  378. void
  379. arrange(Monitor *m) {
  380. if(m)
  381. showhide(m->stack);
  382. else for(m = mons; m; m = m->next)
  383. showhide(m->stack);
  384. if(m) {
  385. arrangemon(m);
  386. restack(m);
  387. } else for(m = mons; m; m = m->next)
  388. arrangemon(m);
  389. }
  390. void
  391. arrangemon(Monitor *m) {
  392. strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
  393. if(m->lt[m->sellt]->arrange)
  394. m->lt[m->sellt]->arrange(m);
  395. }
  396. void
  397. attach(Client *c) {
  398. c->next = c->mon->clients;
  399. c->mon->clients = c;
  400. }
  401. void
  402. attachstack(Client *c) {
  403. c->snext = c->mon->stack;
  404. c->mon->stack = c;
  405. }
  406. void
  407. buttonpress(XEvent *e) {
  408. unsigned int i, x, click;
  409. Arg arg = {0};
  410. Client *c;
  411. Monitor *m;
  412. XButtonPressedEvent *ev = &e->xbutton;
  413. click = ClkRootWin;
  414. /* focus monitor if necessary */
  415. if((m = wintomon(ev->window)) && m != selmon) {
  416. unfocus(selmon->sel, True);
  417. selmon = m;
  418. focus(NULL);
  419. }
  420. if(ev->window == selmon->barwin) {
  421. i = x = 0;
  422. do
  423. x += TEXTW(tags[i]);
  424. while(ev->x >= x && ++i < LENGTH(tags));
  425. if(i < LENGTH(tags)) {
  426. click = ClkTagBar;
  427. arg.ui = 1 << i;
  428. }
  429. else if(ev->x < x + blw)
  430. click = ClkLtSymbol;
  431. else if(ev->x > selmon->ww - TEXTW(stext))
  432. click = ClkStatusText;
  433. else
  434. click = ClkWinTitle;
  435. }
  436. else if((c = wintoclient(ev->window))) {
  437. focus(c);
  438. click = ClkClientWin;
  439. }
  440. for(i = 0; i < LENGTH(buttons); i++)
  441. if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
  442. && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
  443. buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
  444. }
  445. void
  446. checkotherwm(void) {
  447. xerrorxlib = XSetErrorHandler(xerrorstart);
  448. /* this causes an error if some other window manager is running */
  449. XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
  450. XSync(dpy, False);
  451. XSetErrorHandler(xerror);
  452. XSync(dpy, False);
  453. }
  454. void
  455. cleanup(void) {
  456. Arg a = {.ui = ~0};
  457. Layout foo = { "", NULL };
  458. Monitor *m;
  459. view(&a);
  460. selmon->lt[selmon->sellt] = &foo;
  461. for(m = mons; m; m = m->next)
  462. while(m->stack)
  463. unmanage(m->stack, False);
  464. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  465. XFreePixmap(dpy, dc.drawable);
  466. XFreeGC(dpy, dc.gc);
  467. XFreeCursor(dpy, cursor[CurNormal]);
  468. XFreeCursor(dpy, cursor[CurResize]);
  469. XFreeCursor(dpy, cursor[CurMove]);
  470. while(mons)
  471. cleanupmon(mons);
  472. XSync(dpy, False);
  473. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  474. XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
  475. }
  476. void
  477. cleanupmon(Monitor *mon) {
  478. Monitor *m;
  479. if(mon == mons)
  480. mons = mons->next;
  481. else {
  482. for(m = mons; m && m->next != mon; m = m->next);
  483. m->next = mon->next;
  484. }
  485. XUnmapWindow(dpy, mon->barwin);
  486. XDestroyWindow(dpy, mon->barwin);
  487. free(mon);
  488. }
  489. void
  490. clearurgent(Client *c) {
  491. XWMHints *wmh;
  492. c->isurgent = False;
  493. if(!(wmh = XGetWMHints(dpy, c->win)))
  494. return;
  495. wmh->flags &= ~XUrgencyHint;
  496. XSetWMHints(dpy, c->win, wmh);
  497. XFree(wmh);
  498. }
  499. void
  500. clientmessage(XEvent *e) {
  501. XClientMessageEvent *cme = &e->xclient;
  502. Client *c = wintoclient(cme->window);
  503. if(!c)
  504. return;
  505. if(cme->message_type == netatom[NetWMState]) {
  506. if(cme->data.l[1] == netatom[NetWMFullscreen] || cme->data.l[2] == netatom[NetWMFullscreen])
  507. setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
  508. || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
  509. }
  510. else if(cme->message_type == netatom[NetActiveWindow]) {
  511. if(!ISVISIBLE(c)) {
  512. c->mon->seltags ^= 1;
  513. c->mon->tagset[c->mon->seltags] = c->tags;
  514. }
  515. pop(c);
  516. }
  517. }
  518. void
  519. configure(Client *c) {
  520. XConfigureEvent ce;
  521. ce.type = ConfigureNotify;
  522. ce.display = dpy;
  523. ce.event = c->win;
  524. ce.window = c->win;
  525. ce.x = c->x;
  526. ce.y = c->y;
  527. ce.width = c->w;
  528. ce.height = c->h;
  529. ce.border_width = c->bw;
  530. ce.above = None;
  531. ce.override_redirect = False;
  532. XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
  533. }
  534. void
  535. configurenotify(XEvent *e) {
  536. Monitor *m;
  537. XConfigureEvent *ev = &e->xconfigure;
  538. Bool dirty;
  539. // TODO: updategeom handling sucks, needs to be simplified
  540. if(ev->window == root) {
  541. dirty = (sw != ev->width || sh != ev->height);
  542. sw = ev->width;
  543. sh = ev->height;
  544. if(updategeom() || dirty) {
  545. if(dc.drawable != 0)
  546. XFreePixmap(dpy, dc.drawable);
  547. dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
  548. updatebars();
  549. for(m = mons; m; m = m->next)
  550. XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
  551. focus(NULL);
  552. arrange(NULL);
  553. }
  554. }
  555. }
  556. void
  557. configurerequest(XEvent *e) {
  558. Client *c;
  559. Monitor *m;
  560. XConfigureRequestEvent *ev = &e->xconfigurerequest;
  561. XWindowChanges wc;
  562. if((c = wintoclient(ev->window))) {
  563. if(ev->value_mask & CWBorderWidth)
  564. c->bw = ev->border_width;
  565. else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
  566. m = c->mon;
  567. if(ev->value_mask & CWX) {
  568. c->oldx = c->x;
  569. c->x = m->mx + ev->x;
  570. }
  571. if(ev->value_mask & CWY) {
  572. c->oldy = c->y;
  573. c->y = m->my + ev->y;
  574. }
  575. if(ev->value_mask & CWWidth) {
  576. c->oldw = c->w;
  577. c->w = ev->width;
  578. }
  579. if(ev->value_mask & CWHeight) {
  580. c->oldh = c->h;
  581. c->h = ev->height;
  582. }
  583. if((c->x + c->w) > m->mx + m->mw && c->isfloating)
  584. c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
  585. if((c->y + c->h) > m->my + m->mh && c->isfloating)
  586. c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
  587. if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
  588. configure(c);
  589. if(ISVISIBLE(c))
  590. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  591. }
  592. else
  593. configure(c);
  594. }
  595. else {
  596. wc.x = ev->x;
  597. wc.y = ev->y;
  598. wc.width = ev->width;
  599. wc.height = ev->height;
  600. wc.border_width = ev->border_width;
  601. wc.sibling = ev->above;
  602. wc.stack_mode = ev->detail;
  603. XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
  604. }
  605. XSync(dpy, False);
  606. }
  607. Monitor *
  608. createmon(void) {
  609. Monitor *m;
  610. if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
  611. die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
  612. m->tagset[0] = m->tagset[1] = 1;
  613. m->mfact = mfact;
  614. m->nmaster = nmaster;
  615. m->showbar = showbar;
  616. m->topbar = topbar;
  617. m->lt[0] = &layouts[0];
  618. m->lt[1] = &layouts[1 % LENGTH(layouts)];
  619. strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
  620. return m;
  621. }
  622. void
  623. destroynotify(XEvent *e) {
  624. Client *c;
  625. XDestroyWindowEvent *ev = &e->xdestroywindow;
  626. if((c = wintoclient(ev->window)))
  627. unmanage(c, True);
  628. }
  629. void
  630. detach(Client *c) {
  631. Client **tc;
  632. for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
  633. *tc = c->next;
  634. }
  635. void
  636. detachstack(Client *c) {
  637. Client **tc, *t;
  638. for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
  639. *tc = c->snext;
  640. if(c == c->mon->sel) {
  641. for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
  642. c->mon->sel = t;
  643. }
  644. }
  645. void
  646. die(const char *errstr, ...) {
  647. va_list ap;
  648. va_start(ap, errstr);
  649. vfprintf(stderr, errstr, ap);
  650. va_end(ap);
  651. exit(EXIT_FAILURE);
  652. }
  653. Monitor *
  654. dirtomon(int dir) {
  655. Monitor *m = NULL;
  656. if(dir > 0) {
  657. if(!(m = selmon->next))
  658. m = mons;
  659. }
  660. else if(selmon == mons)
  661. for(m = mons; m->next; m = m->next);
  662. else
  663. for(m = mons; m->next != selmon; m = m->next);
  664. return m;
  665. }
  666. void
  667. drawbar(Monitor *m) {
  668. int x;
  669. unsigned int i, occ = 0, urg = 0;
  670. XftColor *col;
  671. Client *c;
  672. for(c = m->clients; c; c = c->next) {
  673. occ |= c->tags;
  674. if(c->isurgent)
  675. urg |= c->tags;
  676. }
  677. dc.x = 0;
  678. for(i = 0; i < LENGTH(tags); i++) {
  679. dc.w = TEXTW(tags[i]);
  680. col = m->tagset[m->seltags] & 1 << i ? dc.sel : dc.norm;
  681. drawtext(tags[i], col, urg & 1 << i);
  682. drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
  683. occ & 1 << i, urg & 1 << i, col);
  684. dc.x += dc.w;
  685. }
  686. dc.w = blw = TEXTW(m->ltsymbol);
  687. drawtext(m->ltsymbol, dc.norm, False);
  688. dc.x += dc.w;
  689. x = dc.x;
  690. if(m == selmon) { /* status is only drawn on selected monitor */
  691. dc.w = TEXTW(stext);
  692. dc.x = m->ww - dc.w;
  693. if(dc.x < x) {
  694. dc.x = x;
  695. dc.w = m->ww - x;
  696. }
  697. drawtext(stext, dc.norm, False);
  698. }
  699. else
  700. dc.x = m->ww;
  701. if((dc.w = dc.x - x) > bh) {
  702. dc.x = x;
  703. if(m->sel) {
  704. col = m == selmon ? dc.sel : dc.norm;
  705. drawtext(m->sel->name, col, False);
  706. drawsquare(m->sel->isfixed, m->sel->isfloating, False, col);
  707. }
  708. else
  709. drawtext(NULL, dc.norm, False);
  710. }
  711. XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
  712. XSync(dpy, False);
  713. }
  714. void
  715. drawbars(void) {
  716. Monitor *m;
  717. for(m = mons; m; m = m->next)
  718. drawbar(m);
  719. }
  720. void
  721. drawsquare(Bool filled, Bool empty, Bool invert, XftColor col[ColLast]) {
  722. int x;
  723. XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG].pixel);
  724. x = (dc.font.ascent + dc.font.descent + 2) / 4;
  725. if(filled)
  726. XFillRectangle(dpy, dc.drawable, dc.gc, dc.x+1, dc.y+1, x+1, x+1);
  727. else if(empty)
  728. XDrawRectangle(dpy, dc.drawable, dc.gc, dc.x+1, dc.y+1, x, x);
  729. }
  730. void
  731. drawtext(const char *text, XftColor col[ColLast], Bool invert) {
  732. char buf[256];
  733. int i, x, y, h, len, olen;
  734. XftDraw *d;
  735. XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG].pixel);
  736. XFillRectangle(dpy, dc.drawable, dc.gc, dc.x, dc.y, dc.w, dc.h);
  737. if(!text)
  738. return;
  739. olen = strlen(text);
  740. h = dc.font.ascent + dc.font.descent;
  741. y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
  742. x = dc.x + (h / 2);
  743. /* shorten text if necessary */
  744. for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
  745. if(!len)
  746. return;
  747. memcpy(buf, text, len);
  748. if(len < olen)
  749. for(i = len; i && i > len - 3; buf[--i] = '.');
  750. d = XftDrawCreate(dpy, dc.drawable, DefaultVisual(dpy, screen), DefaultColormap(dpy,screen));
  751. XftDrawStringUtf8(d, &col[invert ? ColBG : ColFG], dc.font.xfont, x, y, (XftChar8 *) buf, len);
  752. XftDrawDestroy(d);
  753. }
  754. void
  755. enternotify(XEvent *e) {
  756. Client *c;
  757. Monitor *m;
  758. XCrossingEvent *ev = &e->xcrossing;
  759. if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
  760. return;
  761. c = wintoclient(ev->window);
  762. m = c ? c->mon : wintomon(ev->window);
  763. if(m != selmon) {
  764. unfocus(selmon->sel, True);
  765. selmon = m;
  766. }
  767. else if(!c || c == selmon->sel)
  768. return;
  769. focus(c);
  770. }
  771. void
  772. expose(XEvent *e) {
  773. Monitor *m;
  774. XExposeEvent *ev = &e->xexpose;
  775. if(ev->count == 0 && (m = wintomon(ev->window)))
  776. drawbar(m);
  777. }
  778. void
  779. focus(Client *c) {
  780. if(!c || !ISVISIBLE(c))
  781. for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
  782. /* was if(selmon->sel) */
  783. if(selmon->sel && selmon->sel != c)
  784. unfocus(selmon->sel, False);
  785. if(c) {
  786. if(c->mon != selmon)
  787. selmon = c->mon;
  788. if(c->isurgent)
  789. clearurgent(c);
  790. detachstack(c);
  791. attachstack(c);
  792. grabbuttons(c, True);
  793. XSetWindowBorder(dpy, c->win, dc.sel[ColBorder].pixel);
  794. setfocus(c);
  795. }
  796. else {
  797. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  798. XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
  799. }
  800. selmon->sel = c;
  801. drawbars();
  802. }
  803. void
  804. focusin(XEvent *e) { /* there are some broken focus acquiring clients */
  805. XFocusChangeEvent *ev = &e->xfocus;
  806. if(selmon->sel && ev->window != selmon->sel->win)
  807. setfocus(selmon->sel);
  808. }
  809. void
  810. focusmon(const Arg *arg) {
  811. Monitor *m;
  812. if(!mons->next)
  813. return;
  814. if((m = dirtomon(arg->i)) == selmon)
  815. return;
  816. unfocus(selmon->sel, False); /* s/True/False/ fixes input focus issues
  817. in gedit and anjuta */
  818. selmon = m;
  819. focus(NULL);
  820. }
  821. void
  822. focusstack(const Arg *arg) {
  823. Client *c = NULL, *i;
  824. if(!selmon->sel)
  825. return;
  826. if(arg->i > 0) {
  827. for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
  828. if(!c)
  829. for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
  830. }
  831. else {
  832. for(i = selmon->clients; i != selmon->sel; i = i->next)
  833. if(ISVISIBLE(i))
  834. c = i;
  835. if(!c)
  836. for(; i; i = i->next)
  837. if(ISVISIBLE(i))
  838. c = i;
  839. }
  840. if(c) {
  841. focus(c);
  842. restack(selmon);
  843. }
  844. }
  845. Atom
  846. getatomprop(Client *c, Atom prop) {
  847. int di;
  848. unsigned long dl;
  849. unsigned char *p = NULL;
  850. Atom da, atom = None;
  851. if(XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
  852. &da, &di, &dl, &dl, &p) == Success && p) {
  853. atom = *(Atom *)p;
  854. XFree(p);
  855. }
  856. return atom;
  857. }
  858. XftColor
  859. getcolor(const char *colstr) {
  860. XftColor color;
  861. if(!XftColorAllocName(dpy, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen), colstr, &color))
  862. die("error, cannot allocate color '%s'\n", colstr);
  863. return color;
  864. }
  865. Bool
  866. getrootptr(int *x, int *y) {
  867. int di;
  868. unsigned int dui;
  869. Window dummy;
  870. return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
  871. }
  872. long
  873. getstate(Window w) {
  874. int format;
  875. long result = -1;
  876. unsigned char *p = NULL;
  877. unsigned long n, extra;
  878. Atom real;
  879. if(XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
  880. &real, &format, &n, &extra, (unsigned char **)&p) != Success)
  881. return -1;
  882. if(n != 0)
  883. result = *p;
  884. XFree(p);
  885. return result;
  886. }
  887. Bool
  888. gettextprop(Window w, Atom atom, char *text, unsigned int size) {
  889. char **list = NULL;
  890. int n;
  891. XTextProperty name;
  892. if(!text || size == 0)
  893. return False;
  894. text[0] = '\0';
  895. XGetTextProperty(dpy, w, &name, atom);
  896. if(!name.nitems)
  897. return False;
  898. if(name.encoding == XA_STRING)
  899. strncpy(text, (char *)name.value, size - 1);
  900. else {
  901. if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
  902. strncpy(text, *list, size - 1);
  903. XFreeStringList(list);
  904. }
  905. }
  906. text[size - 1] = '\0';
  907. XFree(name.value);
  908. return True;
  909. }
  910. void
  911. grabbuttons(Client *c, Bool focused) {
  912. updatenumlockmask();
  913. {
  914. unsigned int i, j;
  915. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  916. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  917. if(focused) {
  918. for(i = 0; i < LENGTH(buttons); i++)
  919. if(buttons[i].click == ClkClientWin)
  920. for(j = 0; j < LENGTH(modifiers); j++)
  921. XGrabButton(dpy, buttons[i].button,
  922. buttons[i].mask | modifiers[j],
  923. c->win, False, BUTTONMASK,
  924. GrabModeAsync, GrabModeSync, None, None);
  925. }
  926. else
  927. XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
  928. BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
  929. }
  930. }
  931. void
  932. grabkeys(void) {
  933. updatenumlockmask();
  934. {
  935. unsigned int i, j;
  936. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  937. KeyCode code;
  938. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  939. for(i = 0; i < LENGTH(keys); i++)
  940. if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
  941. for(j = 0; j < LENGTH(modifiers); j++)
  942. XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
  943. True, GrabModeAsync, GrabModeAsync);
  944. }
  945. }
  946. void
  947. incnmaster(const Arg *arg) {
  948. selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
  949. arrange(selmon);
  950. }
  951. void
  952. initfont(const char *fontstr) {
  953. if(!(dc.font.xfont = XftFontOpenName(dpy,screen,fontstr))
  954. && !(dc.font.xfont = XftFontOpenName(dpy,screen,"fixed")))
  955. die("error, cannot load font: '%s'\n", fontstr);
  956. dc.font.ascent = dc.font.xfont->ascent;
  957. dc.font.descent = dc.font.xfont->descent;
  958. dc.font.height = dc.font.ascent + dc.font.descent;
  959. }
  960. #ifdef XINERAMA
  961. static Bool
  962. isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) {
  963. while(n--)
  964. if(unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
  965. && unique[n].width == info->width && unique[n].height == info->height)
  966. return False;
  967. return True;
  968. }
  969. #endif /* XINERAMA */
  970. void
  971. keypress(XEvent *e) {
  972. unsigned int i;
  973. KeySym keysym;
  974. XKeyEvent *ev;
  975. ev = &e->xkey;
  976. if(usexkb)
  977. keysym = XkbKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0, 0);
  978. else
  979. keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
  980. for(i = 0; i < LENGTH(keys); i++)
  981. if(keysym == keys[i].keysym
  982. && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
  983. && keys[i].func)
  984. keys[i].func(&(keys[i].arg));
  985. }
  986. void
  987. killclient(const Arg *arg) {
  988. if(!selmon->sel)
  989. return;
  990. if(!sendevent(selmon->sel, wmatom[WMDelete])) {
  991. XGrabServer(dpy);
  992. XSetErrorHandler(xerrordummy);
  993. XSetCloseDownMode(dpy, DestroyAll);
  994. XKillClient(dpy, selmon->sel->win);
  995. XSync(dpy, False);
  996. XSetErrorHandler(xerror);
  997. XUngrabServer(dpy);
  998. }
  999. }
  1000. void
  1001. manage(Window w, XWindowAttributes *wa) {
  1002. Client *c, *t = NULL;
  1003. Window trans = None;
  1004. XWindowChanges wc;
  1005. if(!(c = calloc(1, sizeof(Client))))
  1006. die("fatal: could not malloc() %u bytes\n", sizeof(Client));
  1007. c->win = w;
  1008. updatetitle(c);
  1009. if(XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
  1010. c->mon = t->mon;
  1011. c->tags = t->tags;
  1012. }
  1013. else {
  1014. c->mon = selmon;
  1015. applyrules(c);
  1016. }
  1017. /* geometry */
  1018. c->x = c->oldx = wa->x;
  1019. c->y = c->oldy = wa->y;
  1020. c->w = c->oldw = wa->width;
  1021. c->h = c->oldh = wa->height;
  1022. c->oldbw = wa->border_width;
  1023. if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
  1024. c->x = c->mon->mx + c->mon->mw - WIDTH(c);
  1025. if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
  1026. c->y = c->mon->my + c->mon->mh - HEIGHT(c);
  1027. c->x = MAX(c->x, c->mon->mx);
  1028. /* only fix client y-offset, if the client center might cover the bar */
  1029. c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
  1030. && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
  1031. c->bw = borderpx;
  1032. wc.border_width = c->bw;
  1033. XConfigureWindow(dpy, w, CWBorderWidth, &wc);
  1034. XSetWindowBorder(dpy, w, dc.norm[ColBorder].pixel);
  1035. configure(c); /* propagates border_width, if size doesn't change */
  1036. updatewindowtype(c);
  1037. updatesizehints(c);
  1038. updatewmhints(c);
  1039. XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
  1040. grabbuttons(c, False);
  1041. if(!c->isfloating)
  1042. c->isfloating = c->oldstate = trans != None || c->isfixed;
  1043. if(c->isfloating)
  1044. XRaiseWindow(dpy, c->win);
  1045. attach(c);
  1046. attachstack(c);
  1047. XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
  1048. (unsigned char *) &(c->win), 1);
  1049. XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
  1050. setclientstate(c, NormalState);
  1051. if (c->mon == selmon)
  1052. unfocus(selmon->sel, False);
  1053. c->mon->sel = c;
  1054. arrange(c->mon);
  1055. XMapWindow(dpy, c->win);
  1056. focus(NULL);
  1057. }
  1058. void
  1059. mappingnotify(XEvent *e) {
  1060. XMappingEvent *ev = &e->xmapping;
  1061. XRefreshKeyboardMapping(ev);
  1062. if(ev->request == MappingKeyboard)
  1063. grabkeys();
  1064. }
  1065. void
  1066. maprequest(XEvent *e) {
  1067. static XWindowAttributes wa;
  1068. XMapRequestEvent *ev = &e->xmaprequest;
  1069. if(!XGetWindowAttributes(dpy, ev->window, &wa))
  1070. return;
  1071. if(wa.override_redirect)
  1072. return;
  1073. if(!wintoclient(ev->window))
  1074. manage(ev->window, &wa);
  1075. }
  1076. void
  1077. monocle(Monitor *m) {
  1078. unsigned int n = 0;
  1079. Client *c;
  1080. for(c = m->clients; c; c = c->next)
  1081. if(ISVISIBLE(c))
  1082. n++;
  1083. if(n > 0) /* override layout symbol */
  1084. snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
  1085. for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
  1086. resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
  1087. }
  1088. void
  1089. motionnotify(XEvent *e) {
  1090. static Monitor *mon = NULL;
  1091. Monitor *m;
  1092. XMotionEvent *ev = &e->xmotion;
  1093. if(ev->window != root)
  1094. return;
  1095. if((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
  1096. unfocus(selmon->sel, True);
  1097. selmon = m;
  1098. focus(NULL);
  1099. }
  1100. mon = m;
  1101. }
  1102. void
  1103. movemouse(const Arg *arg) {
  1104. int x, y, ocx, ocy, nx, ny;
  1105. Client *c;
  1106. Monitor *m;
  1107. XEvent ev;
  1108. if(!(c = selmon->sel))
  1109. return;
  1110. if(c->isfullscreen) /* no support moving fullscreen windows by mouse */
  1111. return;
  1112. restack(selmon);
  1113. ocx = c->x;
  1114. ocy = c->y;
  1115. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1116. None, cursor[CurMove], CurrentTime) != GrabSuccess)
  1117. return;
  1118. if(!getrootptr(&x, &y))
  1119. return;
  1120. do {
  1121. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1122. switch(ev.type) {
  1123. case ConfigureRequest:
  1124. case Expose:
  1125. case MapRequest:
  1126. handler[ev.type](&ev);
  1127. break;
  1128. case MotionNotify:
  1129. nx = ocx + (ev.xmotion.x - x);
  1130. ny = ocy + (ev.xmotion.y - y);
  1131. if(nx >= selmon->wx && nx <= selmon->wx + selmon->ww
  1132. && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
  1133. if(abs(selmon->wx - nx) < snap)
  1134. nx = selmon->wx;
  1135. else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
  1136. nx = selmon->wx + selmon->ww - WIDTH(c);
  1137. if(abs(selmon->wy - ny) < snap)
  1138. ny = selmon->wy;
  1139. else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
  1140. ny = selmon->wy + selmon->wh - HEIGHT(c);
  1141. if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1142. && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
  1143. togglefloating(NULL);
  1144. }
  1145. if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1146. resize(c, nx, ny, c->w, c->h, True);
  1147. break;
  1148. }
  1149. } while(ev.type != ButtonRelease);
  1150. XUngrabPointer(dpy, CurrentTime);
  1151. if((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
  1152. sendmon(c, m);
  1153. selmon = m;
  1154. focus(NULL);
  1155. }
  1156. }
  1157. Client *
  1158. nexttiled(Client *c) {
  1159. for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
  1160. return c;
  1161. }
  1162. void
  1163. pop(Client *c) {
  1164. detach(c);
  1165. attach(c);
  1166. focus(c);
  1167. arrange(c->mon);
  1168. }
  1169. void
  1170. propertynotify(XEvent *e) {
  1171. Client *c;
  1172. Window trans;
  1173. XPropertyEvent *ev = &e->xproperty;
  1174. if((ev->window == root) && (ev->atom == XA_WM_NAME))
  1175. updatestatus();
  1176. else if(ev->state == PropertyDelete)
  1177. return; /* ignore */
  1178. else if((c = wintoclient(ev->window))) {
  1179. switch(ev->atom) {
  1180. default: break;
  1181. case XA_WM_TRANSIENT_FOR:
  1182. if(!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
  1183. (c->isfloating = (wintoclient(trans)) != NULL))
  1184. arrange(c->mon);
  1185. break;
  1186. case XA_WM_NORMAL_HINTS:
  1187. updatesizehints(c);
  1188. break;
  1189. case XA_WM_HINTS:
  1190. updatewmhints(c);
  1191. drawbars();
  1192. break;
  1193. }
  1194. if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
  1195. updatetitle(c);
  1196. if(c == c->mon->sel)
  1197. drawbar(c->mon);
  1198. }
  1199. if(ev->atom == netatom[NetWMWindowType])
  1200. updatewindowtype(c);
  1201. }
  1202. }
  1203. void
  1204. quit(const Arg *arg) {
  1205. running = False;
  1206. }
  1207. Monitor *
  1208. recttomon(int x, int y, int w, int h) {
  1209. Monitor *m, *r = selmon;
  1210. int a, area = 0;
  1211. for(m = mons; m; m = m->next)
  1212. if((a = INTERSECT(x, y, w, h, m)) > area) {
  1213. area = a;
  1214. r = m;
  1215. }
  1216. return r;
  1217. }
  1218. void
  1219. resize(Client *c, int x, int y, int w, int h, Bool interact) {
  1220. if(applysizehints(c, &x, &y, &w, &h, interact))
  1221. resizeclient(c, x, y, w, h);
  1222. }
  1223. void
  1224. resizeclient(Client *c, int x, int y, int w, int h) {
  1225. XWindowChanges wc;
  1226. c->oldx = c->x; c->x = wc.x = x;
  1227. c->oldy = c->y; c->y = wc.y = y;
  1228. c->oldw = c->w; c->w = wc.width = w;
  1229. c->oldh = c->h; c->h = wc.height = h;
  1230. wc.border_width = c->bw;
  1231. XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
  1232. configure(c);
  1233. XSync(dpy, False);
  1234. }
  1235. void
  1236. resizemouse(const Arg *arg) {
  1237. int ocx, ocy;
  1238. int nw, nh;
  1239. Client *c;
  1240. Monitor *m;
  1241. XEvent ev;
  1242. if(!(c = selmon->sel))
  1243. return;
  1244. if(c->isfullscreen) /* no support resizing fullscreen windows by mouse */
  1245. return;
  1246. restack(selmon);
  1247. ocx = c->x;
  1248. ocy = c->y;
  1249. if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1250. None, cursor[CurResize], CurrentTime) != GrabSuccess)
  1251. return;
  1252. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1253. do {
  1254. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1255. switch(ev.type) {
  1256. case ConfigureRequest:
  1257. case Expose:
  1258. case MapRequest:
  1259. handler[ev.type](&ev);
  1260. break;
  1261. case MotionNotify:
  1262. nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
  1263. nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
  1264. if(c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
  1265. && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
  1266. {
  1267. if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1268. && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
  1269. togglefloating(NULL);
  1270. }
  1271. if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1272. resize(c, c->x, c->y, nw, nh, True);
  1273. break;
  1274. }
  1275. } while(ev.type != ButtonRelease);
  1276. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1277. XUngrabPointer(dpy, CurrentTime);
  1278. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1279. if((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
  1280. sendmon(c, m);
  1281. selmon = m;
  1282. focus(NULL);
  1283. }
  1284. }
  1285. void
  1286. restack(Monitor *m) {
  1287. Client *c;
  1288. XEvent ev;
  1289. XWindowChanges wc;
  1290. drawbar(m);
  1291. if(!m->sel)
  1292. return;
  1293. if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
  1294. XRaiseWindow(dpy, m->sel->win);
  1295. if(m->lt[m->sellt]->arrange) {
  1296. wc.stack_mode = Below;
  1297. wc.sibling = m->barwin;
  1298. for(c = m->stack; c; c = c->snext)
  1299. if(!c->isfloating && ISVISIBLE(c)) {
  1300. XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
  1301. wc.sibling = c->win;
  1302. }
  1303. }
  1304. XSync(dpy, False);
  1305. while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1306. }
  1307. void
  1308. run(void) {
  1309. XEvent ev;
  1310. /* main event loop */
  1311. XSync(dpy, False);
  1312. while(running && !XNextEvent(dpy, &ev))
  1313. if(handler[ev.type])
  1314. handler[ev.type](&ev); /* call handler */
  1315. }
  1316. void
  1317. scan(void) {
  1318. unsigned int i, num;
  1319. Window d1, d2, *wins = NULL;
  1320. XWindowAttributes wa;
  1321. if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  1322. for(i = 0; i < num; i++) {
  1323. if(!XGetWindowAttributes(dpy, wins[i], &wa)
  1324. || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  1325. continue;
  1326. if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
  1327. manage(wins[i], &wa);
  1328. }
  1329. for(i = 0; i < num; i++) { /* now the transients */
  1330. if(!XGetWindowAttributes(dpy, wins[i], &wa))
  1331. continue;
  1332. if(XGetTransientForHint(dpy, wins[i], &d1)
  1333. && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
  1334. manage(wins[i], &wa);
  1335. }
  1336. if(wins)
  1337. XFree(wins);
  1338. }
  1339. }
  1340. void
  1341. sendmon(Client *c, Monitor *m) {
  1342. if(c->mon == m)
  1343. return;
  1344. unfocus(c, True);
  1345. detach(c);
  1346. detachstack(c);
  1347. c->mon = m;
  1348. c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
  1349. attach(c);
  1350. attachstack(c);
  1351. focus(NULL);
  1352. arrange(NULL);
  1353. }
  1354. void
  1355. setclientstate(Client *c, long state) {
  1356. long data[] = { state, None };
  1357. XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
  1358. PropModeReplace, (unsigned char *)data, 2);
  1359. }
  1360. Bool
  1361. sendevent(Client *c, Atom proto) {
  1362. int n;
  1363. Atom *protocols;
  1364. Bool exists = False;
  1365. XEvent ev;
  1366. if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
  1367. while(!exists && n--)
  1368. exists = protocols[n] == proto;
  1369. XFree(protocols);
  1370. }
  1371. if(exists) {
  1372. ev.type = ClientMessage;
  1373. ev.xclient.window = c->win;
  1374. ev.xclient.message_type = wmatom[WMProtocols];
  1375. ev.xclient.format = 32;
  1376. ev.xclient.data.l[0] = proto;
  1377. ev.xclient.data.l[1] = CurrentTime;
  1378. XSendEvent(dpy, c->win, False, NoEventMask, &ev);
  1379. }
  1380. return exists;
  1381. }
  1382. void
  1383. setfocus(Client *c) {
  1384. if(!c->neverfocus) {
  1385. XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  1386. XChangeProperty(dpy, root, netatom[NetActiveWindow],
  1387. XA_WINDOW, 32, PropModeReplace,
  1388. (unsigned char *) &(c->win), 1);
  1389. }
  1390. sendevent(c, wmatom[WMTakeFocus]);
  1391. }
  1392. void
  1393. setfullscreen(Client *c, Bool fullscreen) {
  1394. if(fullscreen) {
  1395. XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
  1396. PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
  1397. c->isfullscreen = True;
  1398. c->oldstate = c->isfloating;
  1399. c->oldbw = c->bw;
  1400. c->bw = 0;
  1401. c->isfloating = True;
  1402. resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
  1403. XRaiseWindow(dpy, c->win);
  1404. }
  1405. else {
  1406. XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
  1407. PropModeReplace, (unsigned char*)0, 0);
  1408. c->isfullscreen = False;
  1409. c->isfloating = c->oldstate;
  1410. c->bw = c->oldbw;
  1411. c->x = c->oldx;
  1412. c->y = c->oldy;
  1413. c->w = c->oldw;
  1414. c->h = c->oldh;
  1415. resizeclient(c, c->x, c->y, c->w, c->h);
  1416. arrange(c->mon);
  1417. }
  1418. }
  1419. void
  1420. setlayout(const Arg *arg) {
  1421. if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
  1422. selmon->sellt ^= 1;
  1423. if(arg && arg->v)
  1424. selmon->lt[selmon->sellt] = (Layout *)arg->v;
  1425. strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
  1426. if(selmon->sel)
  1427. arrange(selmon);
  1428. else
  1429. drawbar(selmon);
  1430. }
  1431. /* arg > 1.0 will set mfact absolutly */
  1432. void
  1433. setmfact(const Arg *arg) {
  1434. float f;
  1435. if(!arg || !selmon->lt[selmon->sellt]->arrange)
  1436. return;
  1437. f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
  1438. if(f < 0.1 || f > 0.9)
  1439. return;
  1440. selmon->mfact = f;
  1441. arrange(selmon);
  1442. }
  1443. void
  1444. setup(void) {
  1445. XSetWindowAttributes wa;
  1446. int dummy = 0, xkbmajor = XkbMajorVersion, xkbminor = XkbMinorVersion;
  1447. /* clean up any zombies immediately */
  1448. sigchld(0);
  1449. /* init screen */
  1450. screen = DefaultScreen(dpy);
  1451. root = RootWindow(dpy, screen);
  1452. initfont(font);
  1453. sw = DisplayWidth(dpy, screen);
  1454. sh = DisplayHeight(dpy, screen);
  1455. bh = dc.h = dc.font.height + 2;
  1456. updategeom();
  1457. /* init atoms */
  1458. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  1459. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  1460. wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
  1461. wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
  1462. netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
  1463. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  1464. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  1465. netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
  1466. netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
  1467. netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
  1468. netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
  1469. netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
  1470. /* init cursors */
  1471. cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
  1472. cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
  1473. cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
  1474. /* init appearance */
  1475. dc.norm[ColBorder] = getcolor(normbordercolor);
  1476. dc.norm[ColBG] = getcolor(normbgcolor);
  1477. dc.norm[ColFG] = getcolor(normfgcolor);
  1478. dc.sel[ColBorder] = getcolor(selbordercolor);
  1479. dc.sel[ColBG] = getcolor(selbgcolor);
  1480. dc.sel[ColFG] = getcolor(selfgcolor);
  1481. dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
  1482. dc.gc = XCreateGC(dpy, root, 0, NULL);
  1483. XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
  1484. /* init bars */
  1485. updatebars();
  1486. updatestatus();
  1487. /* EWMH support per view */
  1488. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  1489. PropModeReplace, (unsigned char *) netatom, NetLast);
  1490. XDeleteProperty(dpy, root, netatom[NetClientList]);
  1491. /* select for events */
  1492. wa.cursor = cursor[CurNormal];
  1493. wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask|PointerMotionMask
  1494. |EnterWindowMask|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
  1495. XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
  1496. XSelectInput(dpy, root, wa.event_mask);
  1497. /* init xkb */
  1498. usexkb = XkbQueryExtension(dpy, &dummy, &dummy, &dummy, &xkbmajor, &xkbminor);
  1499. grabkeys();
  1500. }
  1501. void
  1502. showhide(Client *c) {
  1503. if(!c)
  1504. return;
  1505. if(ISVISIBLE(c)) { /* show clients top down */
  1506. XMoveWindow(dpy, c->win, c->x, c->y);
  1507. if((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
  1508. resize(c, c->x, c->y, c->w, c->h, False);
  1509. showhide(c->snext);
  1510. }
  1511. else { /* hide clients bottom up */
  1512. showhide(c->snext);
  1513. XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
  1514. }
  1515. }
  1516. void
  1517. sigchld(int unused) {
  1518. if(signal(SIGCHLD, sigchld) == SIG_ERR)
  1519. die("Can't install SIGCHLD handler");
  1520. while(0 < waitpid(-1, NULL, WNOHANG));
  1521. }
  1522. void
  1523. spawn(const Arg *arg) {
  1524. if(fork() == 0) {
  1525. if(dpy)
  1526. close(ConnectionNumber(dpy));
  1527. setsid();
  1528. execvp(((char **)arg->v)[0], (char **)arg->v);
  1529. fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
  1530. perror(" failed");
  1531. exit(EXIT_SUCCESS);
  1532. }
  1533. }
  1534. void
  1535. tag(const Arg *arg) {
  1536. if(selmon->sel && arg->ui & TAGMASK) {
  1537. selmon->sel->tags = arg->ui & TAGMASK;
  1538. focus(NULL);
  1539. arrange(selmon);
  1540. }
  1541. }
  1542. void
  1543. tagmon(const Arg *arg) {
  1544. if(!selmon->sel || !mons->next)
  1545. return;
  1546. sendmon(selmon->sel, dirtomon(arg->i));
  1547. }
  1548. int
  1549. textnw(const char *text, unsigned int len) {
  1550. XGlyphInfo ext;
  1551. XftTextExtentsUtf8(dpy, dc.font.xfont, (XftChar8 *) text, len, &ext);
  1552. return ext.xOff;
  1553. }
  1554. void
  1555. tile(Monitor *m) {
  1556. unsigned int i, n, h, mw, my, ty;
  1557. Client *c;
  1558. for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
  1559. if(n == 0)
  1560. return;
  1561. if(n > m->nmaster)
  1562. mw = m->nmaster ? m->ww * m->mfact : 0;
  1563. else
  1564. mw = m->ww;
  1565. for(i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
  1566. if(i < m->nmaster) {
  1567. h = (m->wh - my) / (MIN(n, m->nmaster) - i);
  1568. resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), False);
  1569. my += HEIGHT(c);
  1570. }
  1571. else {
  1572. h = (m->wh - ty) / (n - i);
  1573. resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), False);
  1574. ty += HEIGHT(c);
  1575. }
  1576. }
  1577. void
  1578. togglebar(const Arg *arg) {
  1579. selmon->showbar = !selmon->showbar;
  1580. updatebarpos(selmon);
  1581. XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
  1582. arrange(selmon);
  1583. }
  1584. void
  1585. togglefloating(const Arg *arg) {
  1586. if(!selmon->sel)
  1587. return;
  1588. if(selmon->sel->isfullscreen) /* no support for fullscreen windows */
  1589. return;
  1590. selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
  1591. if(selmon->sel->isfloating)
  1592. resize(selmon->sel, selmon->sel->x, selmon->sel->y,
  1593. selmon->sel->w, selmon->sel->h, False);
  1594. arrange(selmon);
  1595. }
  1596. void
  1597. toggletag(const Arg *arg) {
  1598. unsigned int newtags;
  1599. if(!selmon->sel)
  1600. return;
  1601. newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
  1602. if(newtags) {
  1603. selmon->sel->tags = newtags;
  1604. focus(NULL);
  1605. arrange(selmon);
  1606. }
  1607. }
  1608. void
  1609. toggleview(const Arg *arg) {
  1610. unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
  1611. if(newtagset) {
  1612. selmon->tagset[selmon->seltags] = newtagset;
  1613. focus(NULL);
  1614. arrange(selmon);
  1615. }
  1616. }
  1617. void
  1618. unfocus(Client *c, Bool setfocus) {
  1619. if(!c)
  1620. return;
  1621. grabbuttons(c, False);
  1622. XSetWindowBorder(dpy, c->win, dc.norm[ColBorder].pixel);
  1623. if(setfocus) {
  1624. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  1625. XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
  1626. }
  1627. }
  1628. void
  1629. unmanage(Client *c, Bool destroyed) {
  1630. Monitor *m = c->mon;
  1631. XWindowChanges wc;
  1632. /* The server grab construct avoids race conditions. */
  1633. detach(c);
  1634. detachstack(c);
  1635. if(!destroyed) {
  1636. wc.border_width = c->oldbw;
  1637. XGrabServer(dpy);
  1638. XSetErrorHandler(xerrordummy);
  1639. XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
  1640. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  1641. setclientstate(c, WithdrawnState);
  1642. XSync(dpy, False);
  1643. XSetErrorHandler(xerror);
  1644. XUngrabServer(dpy);
  1645. }
  1646. free(c);
  1647. focus(NULL);
  1648. updateclientlist();
  1649. arrange(m);
  1650. }
  1651. void
  1652. unmapnotify(XEvent *e) {
  1653. Client *c;
  1654. XUnmapEvent *ev = &e->xunmap;
  1655. if((c = wintoclient(ev->window))) {
  1656. if(ev->send_event)
  1657. setclientstate(c, WithdrawnState);
  1658. else
  1659. unmanage(c, False);
  1660. }
  1661. }
  1662. void
  1663. updatebars(void) {
  1664. Monitor *m;
  1665. XSetWindowAttributes wa = {
  1666. .override_redirect = True,
  1667. .background_pixmap = ParentRelative,
  1668. .event_mask = ButtonPressMask|ExposureMask
  1669. };
  1670. for(m = mons; m; m = m->next) {
  1671. if (m->barwin)
  1672. continue;
  1673. m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
  1674. CopyFromParent, DefaultVisual(dpy, screen),
  1675. CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
  1676. XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
  1677. XMapRaised(dpy, m->barwin);
  1678. }
  1679. }
  1680. void
  1681. updatebarpos(Monitor *m) {
  1682. m->wy = m->my;
  1683. m->wh = m->mh;
  1684. if(m->showbar) {
  1685. m->wh -= bh;
  1686. m->by = m->topbar ? m->wy : m->wy + m->wh;
  1687. m->wy = m->topbar ? m->wy + bh : m->wy;
  1688. }
  1689. else
  1690. m->by = -bh;
  1691. }
  1692. void
  1693. updateclientlist() {
  1694. Client *c;
  1695. Monitor *m;
  1696. XDeleteProperty(dpy, root, netatom[NetClientList]);
  1697. for(m = mons; m; m = m->next)
  1698. for(c = m->clients; c; c = c->next)
  1699. XChangeProperty(dpy, root, netatom[NetClientList],
  1700. XA_WINDOW, 32, PropModeAppend,
  1701. (unsigned char *) &(c->win), 1);
  1702. }
  1703. Bool
  1704. updategeom(void) {
  1705. Bool dirty = False;
  1706. #ifdef XINERAMA
  1707. if(XineramaIsActive(dpy)) {
  1708. int i, j, n, nn;
  1709. Client *c;
  1710. Monitor *m;
  1711. XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
  1712. XineramaScreenInfo *unique = NULL;
  1713. for(n = 0, m = mons; m; m = m->next, n++);
  1714. /* only consider unique geometries as separate screens */
  1715. if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScreenInfo) * nn)))
  1716. die("fatal: could not malloc() %u bytes\n", sizeof(XineramaScreenInfo) * nn);
  1717. for(i = 0, j = 0; i < nn; i++)
  1718. if(isuniquegeom(unique, j, &info[i]))
  1719. memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
  1720. XFree(info);
  1721. nn = j;
  1722. if(n <= nn) {
  1723. for(i = 0; i < (nn - n); i++) { /* new monitors available */
  1724. for(m = mons; m && m->next; m = m->next);
  1725. if(m)
  1726. m->next = createmon();
  1727. else
  1728. mons = createmon();
  1729. }
  1730. for(i = 0, m = mons; i < nn && m; m = m->next, i++)
  1731. if(i >= n
  1732. || (unique[i].x_org != m->mx || unique[i].y_org != m->my
  1733. || unique[i].width != m->mw || unique[i].height != m->mh))
  1734. {
  1735. dirty = True;
  1736. m->num = i;
  1737. m->mx = m->wx = unique[i].x_org;
  1738. m->my = m->wy = unique[i].y_org;
  1739. m->mw = m->ww = unique[i].width;
  1740. m->mh = m->wh = unique[i].height;
  1741. updatebarpos(m);
  1742. }
  1743. }
  1744. else { /* less monitors available nn < n */
  1745. for(i = nn; i < n; i++) {
  1746. for(m = mons; m && m->next; m = m->next);
  1747. while(m->clients) {
  1748. dirty = True;
  1749. c = m->clients;
  1750. m->clients = c->next;
  1751. detachstack(c);
  1752. c->mon = mons;
  1753. attach(c);
  1754. attachstack(c);
  1755. }
  1756. if(m == selmon)
  1757. selmon = mons;
  1758. cleanupmon(m);
  1759. }
  1760. }
  1761. free(unique);
  1762. }
  1763. else
  1764. #endif /* XINERAMA */
  1765. /* default monitor setup */
  1766. {
  1767. if(!mons)
  1768. mons = createmon();
  1769. if(mons->mw != sw || mons->mh != sh) {
  1770. dirty = True;
  1771. mons->mw = mons->ww = sw;
  1772. mons->mh = mons->wh = sh;
  1773. updatebarpos(mons);
  1774. }
  1775. }
  1776. if(dirty) {
  1777. selmon = mons;
  1778. selmon = wintomon(root);
  1779. }
  1780. return dirty;
  1781. }
  1782. void
  1783. updatenumlockmask(void) {
  1784. unsigned int i, j;
  1785. XModifierKeymap *modmap;
  1786. numlockmask = 0;
  1787. modmap = XGetModifierMapping(dpy);
  1788. for(i = 0; i < 8; i++)
  1789. for(j = 0; j < modmap->max_keypermod; j++)
  1790. if(modmap->modifiermap[i * modmap->max_keypermod + j]
  1791. == XKeysymToKeycode(dpy, XK_Num_Lock))
  1792. numlockmask = (1 << i);
  1793. XFreeModifiermap(modmap);
  1794. }
  1795. void
  1796. updatesizehints(Client *c) {
  1797. long msize;
  1798. XSizeHints size;
  1799. if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
  1800. /* size is uninitialized, ensure that size.flags aren't used */
  1801. size.flags = PSize;
  1802. if(size.flags & PBaseSize) {
  1803. c->basew = size.base_width;
  1804. c->baseh = size.base_height;
  1805. }
  1806. else if(size.flags & PMinSize) {
  1807. c->basew = size.min_width;
  1808. c->baseh = size.min_height;
  1809. }
  1810. else
  1811. c->basew = c->baseh = 0;
  1812. if(size.flags & PResizeInc) {
  1813. c->incw = size.width_inc;
  1814. c->inch = size.height_inc;
  1815. }
  1816. else
  1817. c->incw = c->inch = 0;
  1818. if(size.flags & PMaxSize) {
  1819. c->maxw = size.max_width;
  1820. c->maxh = size.max_height;
  1821. }
  1822. else
  1823. c->maxw = c->maxh = 0;
  1824. if(size.flags & PMinSize) {
  1825. c->minw = size.min_width;
  1826. c->minh = size.min_height;
  1827. }
  1828. else if(size.flags & PBaseSize) {
  1829. c->minw = size.base_width;
  1830. c->minh = size.base_height;
  1831. }
  1832. else
  1833. c->minw = c->minh = 0;
  1834. if(size.flags & PAspect) {
  1835. c->mina = (float)size.min_aspect.y / size.min_aspect.x;
  1836. c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
  1837. }
  1838. else
  1839. c->maxa = c->mina = 0.0;
  1840. c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
  1841. && c->maxw == c->minw && c->maxh == c->minh);
  1842. }
  1843. void
  1844. updatetitle(Client *c) {
  1845. if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
  1846. gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
  1847. if(c->name[0] == '\0') /* hack to mark broken clients */
  1848. strcpy(c->name, broken);
  1849. }
  1850. void
  1851. updatestatus(void) {
  1852. if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
  1853. strcpy(stext, "dwm-"VERSION);
  1854. drawbar(selmon);
  1855. }
  1856. void
  1857. updatewindowtype(Client *c) {
  1858. Atom state = getatomprop(c, netatom[NetWMState]);
  1859. Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
  1860. if(state == netatom[NetWMFullscreen])
  1861. setfullscreen(c, True);
  1862. if(wtype == netatom[NetWMWindowTypeDialog])
  1863. c->isfloating = True;
  1864. }
  1865. void
  1866. updatewmhints(Client *c) {
  1867. XWMHints *wmh;
  1868. if((wmh = XGetWMHints(dpy, c->win))) {
  1869. if(c == selmon->sel && wmh->flags & XUrgencyHint) {
  1870. wmh->flags &= ~XUrgencyHint;
  1871. XSetWMHints(dpy, c->win, wmh);
  1872. }
  1873. else
  1874. c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
  1875. if(wmh->flags & InputHint)
  1876. c->neverfocus = !wmh->input;
  1877. else
  1878. c->neverfocus = False;
  1879. XFree(wmh);
  1880. }
  1881. }
  1882. void
  1883. view(const Arg *arg) {
  1884. if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
  1885. return;
  1886. selmon->seltags ^= 1; /* toggle sel tagset */
  1887. if(arg->ui & TAGMASK)
  1888. selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
  1889. focus(NULL);
  1890. arrange(selmon);
  1891. }
  1892. Client *
  1893. wintoclient(Window w) {
  1894. Client *c;
  1895. Monitor *m;
  1896. for(m = mons; m; m = m->next)
  1897. for(c = m->clients; c; c = c->next)
  1898. if(c->win == w)
  1899. return c;
  1900. return NULL;
  1901. }
  1902. Monitor *
  1903. wintomon(Window w) {
  1904. int x, y;
  1905. Client *c;
  1906. Monitor *m;
  1907. if(w == root && getrootptr(&x, &y))
  1908. return recttomon(x, y, 1, 1);
  1909. for(m = mons; m; m = m->next)
  1910. if(w == m->barwin)
  1911. return m;
  1912. if((c = wintoclient(w)))
  1913. return c->mon;
  1914. return selmon;
  1915. }
  1916. /* There's no way to check accesses to destroyed windows, thus those cases are
  1917. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  1918. * default error handler, which may call exit. */
  1919. int
  1920. xerror(Display *dpy, XErrorEvent *ee) {
  1921. if(ee->error_code == BadWindow
  1922. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  1923. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  1924. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  1925. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  1926. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  1927. || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
  1928. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
  1929. || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
  1930. return 0;
  1931. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  1932. ee->request_code, ee->error_code);
  1933. return xerrorxlib(dpy, ee); /* may call exit */
  1934. }
  1935. int
  1936. xerrordummy(Display *dpy, XErrorEvent *ee) {
  1937. return 0;
  1938. }
  1939. /* Startup Error handler to check if another window manager
  1940. * is already running. */
  1941. int
  1942. xerrorstart(Display *dpy, XErrorEvent *ee) {
  1943. die("dwm: another window manager is already running\n");
  1944. return -1;
  1945. }
  1946. void
  1947. zoom(const Arg *arg) {
  1948. Client *c = selmon->sel;
  1949. if(!selmon->lt[selmon->sellt]->arrange
  1950. || (selmon->sel && selmon->sel->isfloating))
  1951. return;
  1952. if(c == nexttiled(selmon->clients))
  1953. if(!c || !(c = nexttiled(c->next)))
  1954. return;
  1955. pop(c);
  1956. }
  1957. int
  1958. main(int argc, char *argv[]) {
  1959. if(argc == 2 && !strcmp("-v", argv[1]))
  1960. die("dwm-"VERSION", © 2006-2012 dwm engineers, see LICENSE for details\n");
  1961. else if(argc != 1)
  1962. die("usage: dwm [-v]\n");
  1963. if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
  1964. fputs("warning: no locale support\n", stderr);
  1965. if(!(dpy = XOpenDisplay(NULL)))
  1966. die("dwm: cannot open display\n");
  1967. checkotherwm();
  1968. setup();
  1969. scan();
  1970. run();
  1971. cleanup();
  1972. XCloseDisplay(dpy);
  1973. return EXIT_SUCCESS;
  1974. }