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  2. /* See LICENSE file for copyright and license details.
  3. *
  4. * dynamic window manager is designed like any other X client as well. It is
  5. * driven through handling X events. In contrast to other X clients, a window
  6. * manager selects for SubstructureRedirectMask on the root window, to receive
  7. * events about window (dis-)appearance. Only one X connection at a time is
  8. * allowed to select for this event mask.
  9. *
  10. * The event handlers of dwm are organized in an array which is accessed
  11. * whenever a new event has been fetched. This allows event dispatching
  12. * in O(1) time.
  13. *
  14. * Each child of the root window is called a client, except windows which have
  15. * set the override_redirect flag. Clients are organized in a linked client
  16. * list on each monitor, the focus history is remembered through a stack list
  17. * on each monitor. Each client contains a bit array to indicate the tags of a
  18. * client.
  19. *
  20. * Keys and tagging rules are organized as arrays and defined in config.h.
  21. *
  22. * To understand everything else, start reading main().
  23. */
  24. #include <errno.h>
  25. #include <locale.h>
  26. #include <signal.h>
  27. #include <stdarg.h>
  28. #include <stdio.h>
  29. #include <stdlib.h>
  30. #include <string.h>
  31. #include <unistd.h>
  32. #include <sys/types.h>
  33. #include <sys/wait.h>
  34. #include <X11/cursorfont.h>
  35. #include <X11/keysym.h>
  36. #include <X11/Xatom.h>
  37. #include <X11/Xlib.h>
  38. #include <X11/Xproto.h>
  39. #include <X11/Xutil.h>
  40. #ifdef XINERAMA
  41. #include <X11/extensions/Xinerama.h>
  42. #endif /* XINERAMA */
  43. #include <X11/Xft/Xft.h>
  45. #include "drw.h"
  46. #include "util.h"
  48. /* macros */
  49. #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
  50. #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
  51. #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
  52. * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
  53. #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
  54. #define LENGTH(X) (sizeof X / sizeof X[0])
  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) (drw_text(drw, 0, 0, 0, 0, (X), 0) + drw->fonts[0]->h)
  61. /* enums */
  62. enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
  63. enum { SchemeNorm, SchemeSel, SchemeLast }; /* color schemes */
  64. enum { NetSupported, NetWMName, NetWMState,
  65. NetWMFullscreen, NetActiveWindow, NetWMWindowType,
  66. NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
  67. enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
  68. enum { ClkTagBar, ClkTabBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
  69. ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
  71. typedef union {
  72. int i;
  73. unsigned int ui;
  74. float f;
  75. const void *v;
  76. } Arg;
  78. typedef struct {
  79. unsigned int click;
  80. unsigned int mask;
  81. unsigned int button;
  82. void (*func)(const Arg *arg);
  83. const Arg arg;
  84. } Button;
  86. typedef struct Monitor Monitor;
  87. typedef struct Client Client;
  88. struct Client {
  89. char name[256];
  90. float mina, maxa;
  91. int x, y, w, h;
  92. int oldx, oldy, oldw, oldh;
  93. int basew, baseh, incw, inch, maxw, maxh, minw, minh;
  94. int bw, oldbw;
  95. unsigned int tags;
  96. int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
  97. Client *next;
  98. Client *snext;
  99. Monitor *mon;
  100. Window win;
  101. };
  103. typedef struct {
  104. unsigned int mod;
  105. KeySym keysym;
  106. void (*func)(const Arg *);
  107. const Arg arg;
  108. } Key;
  110. typedef struct {
  111. const char *symbol;
  112. void (*arrange)(Monitor *);
  113. } Layout;
  115. #define MAXTABS 50
  117. typedef struct Pertag Pertag;
  118. struct Monitor {
  119. char ltsymbol[16];
  120. float mfact;
  121. int nmaster;
  122. int num;
  123. int by; /* bar geometry */
  124. int ty; /* tab bar geometry */
  125. int mx, my, mw, mh; /* screen size */
  126. int wx, wy, ww, wh; /* window area */
  127. unsigned int seltags;
  128. unsigned int sellt;
  129. unsigned int tagset[2];
  130. int showbar;
  131. int showtab;
  132. int topbar;
  133. int toptab;
  134. Client *clients;
  135. Client *sel;
  136. Client *stack;
  137. Monitor *next;
  138. Window barwin;
  139. Window tabwin;
  140. int ntabs;
  141. int tab_widths[MAXTABS];
  142. const Layout *lt[2];
  143. Pertag *pertag;
  144. };
  146. typedef struct {
  147. const char *class;
  148. const char *instance;
  149. const char *title;
  150. unsigned int tags;
  151. int isfloating;
  152. int monitor;
  153. } Rule;
  155. /* function declarations */
  156. static void applyrules(Client *c);
  157. static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
  158. static void arrange(Monitor *m);
  159. static void arrangemon(Monitor *m);
  160. static void attach(Client *c);
  161. static void attachstack(Client *c);
  162. static void buttonpress(XEvent *e);
  163. static void checkotherwm(void);
  164. static void cleanup(void);
  165. static void cleanupmon(Monitor *mon);
  166. static void clearurgent(Client *c);
  167. static void clientmessage(XEvent *e);
  168. static void configure(Client *c);
  169. static void configurenotify(XEvent *e);
  170. static void configurerequest(XEvent *e);
  171. static Monitor *createmon(void);
  172. static void destroynotify(XEvent *e);
  173. static void detach(Client *c);
  174. static void detachstack(Client *c);
  175. static Monitor *dirtomon(int dir);
  176. static void drawbar(Monitor *m);
  177. static void drawbars(void);
  178. static void drawtab(Monitor *m);
  179. static void drawtabs(void);
  180. static void enternotify(XEvent *e);
  181. static void expose(XEvent *e);
  182. static void focus(Client *c);
  183. static void focusin(XEvent *e);
  184. static void focusmon(const Arg *arg);
  185. static void focusstack(const Arg *arg);
  186. static void focuswin(const Arg *arg);
  187. static int getrootptr(int *x, int *y);
  188. static long getstate(Window w);
  189. static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
  190. static void grabbuttons(Client *c, int focused);
  191. static void grabkeys(void);
  192. static void incnmaster(const Arg *arg);
  193. static void keypress(XEvent *e);
  194. static void killclient(const Arg *arg);
  195. static void manage(Window w, XWindowAttributes *wa);
  196. static void mappingnotify(XEvent *e);
  197. static void maprequest(XEvent *e);
  198. static void monocle(Monitor *m);
  199. static void motionnotify(XEvent *e);
  200. static void movemouse(const Arg *arg);
  201. static Client *nexttiled(Client *c);
  202. static void pop(Client *);
  203. static void propertynotify(XEvent *e);
  204. static void quit(const Arg *arg);
  205. static Monitor *recttomon(int x, int y, int w, int h);
  206. static void resize(Client *c, int x, int y, int w, int h, int interact);
  207. static void resizeclient(Client *c, int x, int y, int w, int h);
  208. static void resizemouse(const Arg *arg);
  209. static void restack(Monitor *m);
  210. static void run(void);
  211. static void scan(void);
  212. static int sendevent(Client *c, Atom proto);
  213. static void sendmon(Client *c, Monitor *m);
  214. static void setclientstate(Client *c, long state);
  215. static void setfocus(Client *c);
  216. static void setfullscreen(Client *c, int fullscreen);
  217. static void setlayout(const Arg *arg);
  218. static void setmfact(const Arg *arg);
  219. static void setup(void);
  220. static void showhide(Client *c);
  221. static void sigchld(int unused);
  222. static void spawn(const Arg *arg);
  223. static void tabmode(const Arg *arg);
  224. static void tag(const Arg *arg);
  225. static void tagmon(const Arg *arg);
  226. static void tile(Monitor *);
  227. static void togglebar(const Arg *arg);
  228. static void togglefloating(const Arg *arg);
  229. static void toggletag(const Arg *arg);
  230. static void toggleview(const Arg *arg);
  231. static void unfocus(Client *c, int setfocus);
  232. static void unmanage(Client *c, int destroyed);
  233. static void unmapnotify(XEvent *e);
  234. static int updategeom(void);
  235. static void updatebarpos(Monitor *m);
  236. static void updatebars(void);
  237. static void updateclientlist(void);
  238. static void updatenumlockmask(void);
  239. static void updatesizehints(Client *c);
  240. static void updatestatus(void);
  241. static void updatewindowtype(Client *c);
  242. static void updatetitle(Client *c);
  243. static void updatewmhints(Client *c);
  244. static void view(const Arg *arg);
  245. static Client *wintoclient(Window w);
  246. static Monitor *wintomon(Window w);
  247. static int xerror(Display *dpy, XErrorEvent *ee);
  248. static int xerrordummy(Display *dpy, XErrorEvent *ee);
  249. static int xerrorstart(Display *dpy, XErrorEvent *ee);
  250. static void zoom(const Arg *arg);
  252. /* variables */
  253. static const char broken[] = "broken";
  254. static char stext[256];
  255. static int screen;
  256. static int sw, sh; /* X display screen geometry width, height */
  257. static int bh, blw = 0; /* bar geometry */
  258. static int th = 0; /* tab bar geometry */
  259. static int (*xerrorxlib)(Display *, XErrorEvent *);
  260. static unsigned int numlockmask = 0;
  261. static void (*handler[LASTEvent]) (XEvent *) = {
  262. [ButtonPress] = buttonpress,
  263. [ClientMessage] = clientmessage,
  264. [ConfigureRequest] = configurerequest,
  265. [ConfigureNotify] = configurenotify,
  266. [DestroyNotify] = destroynotify,
  267. [EnterNotify] = enternotify,
  268. [Expose] = expose,
  269. [FocusIn] = focusin,
  270. [KeyPress] = keypress,
  271. [MappingNotify] = mappingnotify,
  272. [MapRequest] = maprequest,
  273. [MotionNotify] = motionnotify,
  274. [PropertyNotify] = propertynotify,
  275. [UnmapNotify] = unmapnotify
  276. };
  277. static Atom wmatom[WMLast], netatom[NetLast];
  278. static int running = 1;
  279. static Cur *cursor[CurLast];
  280. static ClrScheme scheme[SchemeLast];
  281. static Display *dpy;
  282. static Drw *drw;
  283. static Monitor *mons, *selmon;
  284. static Window root;
  286. /* configuration, allows nested code to access above variables */
  287. #include "config.h"
  289. struct Pertag {
  290. unsigned int curtag, prevtag; /* current and previous tag */
  291. int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
  292. float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
  293. unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
  294. const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes */
  295. Bool showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
  296. Client *prevzooms[LENGTH(tags) + 1]; /* store zoom information */
  297. };
  299. /* compile-time check if all tags fit into an unsigned int bit array. */
  300. struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
  302. /* function implementations */
  303. void
  304. applyrules(Client *c)
  305. {
  306. const char *class, *instance;
  307. unsigned int i;
  308. const Rule *r;
  309. Monitor *m;
  310. XClassHint ch = { NULL, NULL };
  312. /* rule matching */
  313. c->isfloating = 0;
  314. c->tags = 0;
  315. XGetClassHint(dpy, c->win, &ch);
  316. class = ch.res_class ? ch.res_class : broken;
  317. instance = ch.res_name ? ch.res_name : broken;
  319. for (i = 0; i < LENGTH(rules); i++) {
  320. r = &rules[i];
  321. if ((!r->title || strstr(c->name, r->title))
  322. && (!r->class || strstr(class, r->class))
  323. && (!r->instance || strstr(instance, r->instance)))
  324. {
  325. c->isfloating = r->isfloating;
  326. c->tags |= r->tags;
  327. for (m = mons; m && m->num != r->monitor; m = m->next);
  328. if (m)
  329. c->mon = m;
  330. }
  331. }
  332. if (ch.res_class)
  333. XFree(ch.res_class);
  334. if (ch.res_name)
  335. XFree(ch.res_name);
  336. c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
  337. }
  339. int
  340. applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
  341. {
  342. int baseismin;
  343. Monitor *m = c->mon;
  345. /* set minimum possible */
  346. *w = MAX(1, *w);
  347. *h = MAX(1, *h);
  348. if (interact) {
  349. if (*x > sw)
  350. *x = sw - WIDTH(c);
  351. if (*y > sh)
  352. *y = sh - HEIGHT(c);
  353. if (*x + *w + 2 * c->bw < 0)
  354. *x = 0;
  355. if (*y + *h + 2 * c->bw < 0)
  356. *y = 0;
  357. } else {
  358. if (*x >= m->wx + m->ww)
  359. *x = m->wx + m->ww - WIDTH(c);
  360. if (*y >= m->wy + m->wh)
  361. *y = m->wy + m->wh - HEIGHT(c);
  362. if (*x + *w + 2 * c->bw <= m->wx)
  363. *x = m->wx;
  364. if (*y + *h + 2 * c->bw <= m->wy)
  365. *y = m->wy;
  366. }
  367. if (*h < bh)
  368. *h = bh;
  369. if (*w < bh)
  370. *w = bh;
  371. if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
  372. /* see last two sentences in ICCCM 4.1.2.3 */
  373. baseismin = c->basew == c->minw && c->baseh == c->minh;
  374. if (!baseismin) { /* temporarily remove base dimensions */
  375. *w -= c->basew;
  376. *h -= c->baseh;
  377. }
  378. /* adjust for aspect limits */
  379. if (c->mina > 0 && c->maxa > 0) {
  380. if (c->maxa < (float)*w / *h)
  381. *w = *h * c->maxa + 0.5;
  382. else if (c->mina < (float)*h / *w)
  383. *h = *w * c->mina + 0.5;
  384. }
  385. if (baseismin) { /* increment calculation requires this */
  386. *w -= c->basew;
  387. *h -= c->baseh;
  388. }
  389. /* adjust for increment value */
  390. if (c->incw)
  391. *w -= *w % c->incw;
  392. if (c->inch)
  393. *h -= *h % c->inch;
  394. /* restore base dimensions */
  395. *w = MAX(*w + c->basew, c->minw);
  396. *h = MAX(*h + c->baseh, c->minh);
  397. if (c->maxw)
  398. *w = MIN(*w, c->maxw);
  399. if (c->maxh)
  400. *h = MIN(*h, c->maxh);
  401. }
  402. return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
  403. }
  405. void
  406. arrange(Monitor *m)
  407. {
  408. if (m)
  409. showhide(m->stack);
  410. else for (m = mons; m; m = m->next)
  411. showhide(m->stack);
  412. if (m) {
  413. arrangemon(m);
  414. restack(m);
  415. } else for (m = mons; m; m = m->next)
  416. arrangemon(m);
  417. }
  419. void
  420. arrangemon(Monitor *m)
  421. {
  422. updatebarpos(m);
  423. XMoveResizeWindow(dpy, m->tabwin, m->wx, m->ty, m->ww, th);
  425. strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
  426. if (m->lt[m->sellt]->arrange)
  427. m->lt[m->sellt]->arrange(m);
  428. }
  430. void
  431. attach(Client *c)
  432. {
  433. c->next = c->mon->clients;
  434. c->mon->clients = c;
  435. }
  437. void
  438. attachstack(Client *c)
  439. {
  440. c->snext = c->mon->stack;
  441. c->mon->stack = c;
  442. }
  444. void
  445. buttonpress(XEvent *e)
  446. {
  447. unsigned int i, x, click;
  448. Arg arg = {0};
  449. Client *c;
  450. Monitor *m;
  451. XButtonPressedEvent *ev = &e->xbutton;
  453. click = ClkRootWin;
  454. /* focus monitor if necessary */
  455. if ((m = wintomon(ev->window)) && m != selmon) {
  456. unfocus(selmon->sel, 1);
  457. selmon = m;
  458. focus(NULL);
  459. }
  460. if (ev->window == selmon->barwin) {
  461. i = x = 0;
  462. do
  463. x += TEXTW(tags[i]);
  464. while (ev->x >= x && ++i < LENGTH(tags));
  465. if (i < LENGTH(tags)) {
  466. click = ClkTagBar;
  467. arg.ui = 1 << i;
  468. } else if (ev->x < x + blw)
  469. click = ClkLtSymbol;
  470. else if (ev->x > selmon->ww - TEXTW(stext))
  471. click = ClkStatusText;
  472. else
  473. click = ClkWinTitle;
  474. }
  476. if(ev->window == selmon->tabwin) {
  477. i = 0; x = 0;
  478. for(c = selmon->clients; c; c = c->next){
  479. if(!ISVISIBLE(c)) continue;
  480. x += selmon->tab_widths[i];
  481. if (ev->x > x)
  482. ++i;
  483. else
  484. break;
  485. if(i >= m->ntabs) break;
  486. }
  487. if(c) {
  488. click = ClkTabBar;
  489. arg.ui = i;
  490. }
  491. }
  492. else if ((c = wintoclient(ev->window))) {
  493. focus(c);
  494. click = ClkClientWin;
  495. }
  496. for (i = 0; i < LENGTH(buttons); i++)
  497. if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
  498. && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)){
  499. buttons[i].func(((click == ClkTagBar || click == ClkTabBar)
  500. && buttons[i].arg.i == 0) ? &arg : &buttons[i].arg);
  501. }
  502. }
  504. void
  505. checkotherwm(void)
  506. {
  507. xerrorxlib = XSetErrorHandler(xerrorstart);
  508. /* this causes an error if some other window manager is running */
  509. XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
  510. XSync(dpy, False);
  511. XSetErrorHandler(xerror);
  512. XSync(dpy, False);
  513. }
  515. void
  516. cleanup(void)
  517. {
  518. Arg a = {.ui = ~0};
  519. Layout foo = { "", NULL };
  520. Monitor *m;
  521. size_t i;
  523. view(&a);
  524. selmon->lt[selmon->sellt] = &foo;
  525. for (m = mons; m; m = m->next)
  526. while (m->stack)
  527. unmanage(m->stack, 0);
  528. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  529. while (mons)
  530. cleanupmon(mons);
  531. for (i = 0; i < CurLast; i++)
  532. drw_cur_free(drw, cursor[i]);
  533. for (i = 0; i < SchemeLast; i++) {
  534. drw_clr_free(scheme[i].border);
  535. drw_clr_free(scheme[i].bg);
  536. drw_clr_free(scheme[i].fg);
  537. }
  538. drw_free(drw);
  539. XSync(dpy, False);
  540. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  541. XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
  542. }
  544. void
  545. cleanupmon(Monitor *mon)
  546. {
  547. Monitor *m;
  549. if (mon == mons)
  550. mons = mons->next;
  551. else {
  552. for (m = mons; m && m->next != mon; m = m->next);
  553. m->next = mon->next;
  554. }
  555. XUnmapWindow(dpy, mon->barwin);
  556. XDestroyWindow(dpy, mon->barwin);
  557. XUnmapWindow(dpy, mon->tabwin);
  558. XDestroyWindow(dpy, m->tabwin);
  559. free(mon);
  560. }
  562. void
  563. clearurgent(Client *c)
  564. {
  565. XWMHints *wmh;
  567. c->isurgent = 0;
  568. if (!(wmh = XGetWMHints(dpy, c->win)))
  569. return;
  570. wmh->flags &= ~XUrgencyHint;
  571. XSetWMHints(dpy, c->win, wmh);
  572. XFree(wmh);
  573. }
  575. void
  576. clientmessage(XEvent *e)
  577. {
  578. XClientMessageEvent *cme = &e->xclient;
  579. Client *c = wintoclient(cme->window);
  580. int i;
  582. if (!c)
  583. return;
  584. if (cme->message_type == netatom[NetWMState]) {
  585. if (cme->data.l[1] == netatom[NetWMFullscreen] || cme->data.l[2] == netatom[NetWMFullscreen])
  586. setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
  587. || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
  588. } else if (cme->message_type == netatom[NetActiveWindow]) {
  589. if (!ISVISIBLE(c)) {
  590. c->mon->seltags ^= 1;
  591. c->mon->tagset[c->mon->seltags] = c->tags;
  592. for(i=0; !(c->tags & 1 << i); i++);
  593. view(&(Arg){.ui = 1 << i});
  594. }
  595. pop(c);
  596. }
  597. }
  599. void
  600. configure(Client *c)
  601. {
  602. XConfigureEvent ce;
  604. ce.type = ConfigureNotify;
  605. ce.display = dpy;
  606. ce.event = c->win;
  607. ce.window = c->win;
  608. ce.x = c->x;
  609. ce.y = c->y;
  610. ce.width = c->w;
  611. ce.height = c->h;
  612. ce.border_width = c->bw;
  613. ce.above = None;
  614. ce.override_redirect = False;
  615. XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
  616. }
  618. void
  619. configurenotify(XEvent *e)
  620. {
  621. Monitor *m;
  622. XConfigureEvent *ev = &e->xconfigure;
  623. int dirty;
  625. /* TODO: updategeom handling sucks, needs to be simplified */
  626. if (ev->window == root) {
  627. dirty = (sw != ev->width || sh != ev->height);
  628. sw = ev->width;
  629. sh = ev->height;
  630. if (updategeom() || dirty) {
  631. drw_resize(drw, sw, bh);
  632. updatebars();
  633. for (m = mons; m; m = m->next)
  634. XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
  635. focus(NULL);
  636. arrange(NULL);
  637. }
  638. }
  639. }
  641. void
  642. configurerequest(XEvent *e)
  643. {
  644. Client *c;
  645. Monitor *m;
  646. XConfigureRequestEvent *ev = &e->xconfigurerequest;
  647. XWindowChanges wc;
  649. if ((c = wintoclient(ev->window))) {
  650. if (ev->value_mask & CWBorderWidth)
  651. c->bw = ev->border_width;
  652. else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
  653. m = c->mon;
  654. if (ev->value_mask & CWX) {
  655. c->oldx = c->x;
  656. c->x = m->mx + ev->x;
  657. }
  658. if (ev->value_mask & CWY) {
  659. c->oldy = c->y;
  660. c->y = m->my + ev->y;
  661. }
  662. if (ev->value_mask & CWWidth) {
  663. c->oldw = c->w;
  664. c->w = ev->width;
  665. }
  666. if (ev->value_mask & CWHeight) {
  667. c->oldh = c->h;
  668. c->h = ev->height;
  669. }
  670. if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
  671. c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
  672. if ((c->y + c->h) > m->my + m->mh && c->isfloating)
  673. c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
  674. if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
  675. configure(c);
  676. if (ISVISIBLE(c))
  677. XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  678. } else
  679. configure(c);
  680. } else {
  681. wc.x = ev->x;
  682. wc.y = ev->y;
  683. wc.width = ev->width;
  684. wc.height = ev->height;
  685. wc.border_width = ev->border_width;
  686. wc.sibling = ev->above;
  687. wc.stack_mode = ev->detail;
  688. XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
  689. }
  690. XSync(dpy, False);
  691. }
  693. Monitor *
  694. createmon(void)
  695. {
  696. Monitor *m;
  697. int i;
  699. m = ecalloc(1, sizeof(Monitor));
  700. m->tagset[0] = m->tagset[1] = 1;
  701. m->mfact = mfact;
  702. m->nmaster = nmaster;
  703. m->showbar = showbar;
  704. m->showtab = showtab;
  705. m->topbar = topbar;
  706. //m->lt[0] = &layouts[0];
  707. m->toptab = toptab;
  708. m->ntabs = 0;
  709. m->lt[0] = &layouts[def_layouts[1] % LENGTH(layouts)];
  710. m->lt[1] = &layouts[1 % LENGTH(layouts)];
  711. strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
  712. if (!(m->pertag = (Pertag *)calloc(1, sizeof(Pertag))))
  713. die("fatal: could not malloc() %u bytes\n", sizeof(Pertag));
  714. m->pertag->curtag = m->pertag->prevtag = 1;
  715. for(i=0; i <= LENGTH(tags); i++) {
  716. /* init nmaster */
  717. m->pertag->nmasters[i] = m->nmaster;
  719. /* init mfacts */
  720. m->pertag->mfacts[i] = m->mfact;
  722. /* init layouts */
  723. m->pertag->ltidxs[i][0] = m->lt[0];
  724. m->pertag->ltidxs[i][1] = m->lt[1];
  725. m->pertag->sellts[i] = m->sellt;
  727. /* init showbar */
  728. m->pertag->showbars[i] = m->showbar;
  730. /* swap focus and zoomswap*/
  731. m->pertag->prevzooms[i] = NULL;
  732. }
  733. return m;
  734. }
  736. void
  737. destroynotify(XEvent *e)
  738. {
  739. Client *c;
  740. XDestroyWindowEvent *ev = &e->xdestroywindow;
  742. if ((c = wintoclient(ev->window)))
  743. unmanage(c, 1);
  744. }
  746. void
  747. detach(Client *c)
  748. {
  749. Client **tc;
  751. for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
  752. *tc = c->next;
  753. }
  755. void
  756. detachstack(Client *c)
  757. {
  758. Client **tc, *t;
  760. for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
  761. *tc = c->snext;
  763. if (c == c->mon->sel) {
  764. for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
  765. c->mon->sel = t;
  766. }
  767. }
  769. Monitor *
  770. dirtomon(int dir)
  771. {
  772. Monitor *m = NULL;
  774. if (dir > 0) {
  775. if (!(m = selmon->next))
  776. m = mons;
  777. } else if (selmon == mons)
  778. for (m = mons; m->next; m = m->next);
  779. else
  780. for (m = mons; m->next != selmon; m = m->next);
  781. return m;
  782. }
  784. void
  785. drawbar(Monitor *m)
  786. {
  787. int x, xx, w, dx;
  788. unsigned int i, occ = 0, urg = 0;
  789. Client *c;
  791. dx = (drw->fonts[0]->ascent + drw->fonts[0]->descent + 2) / 4;
  793. for (c = m->clients; c; c = c->next) {
  794. occ |= c->tags;
  795. if (c->isurgent)
  796. urg |= c->tags;
  797. }
  798. x = 0;
  799. for (i = 0; i < LENGTH(tags); i++) {
  800. w = TEXTW(tags[i]);
  801. drw_setscheme(drw, m->tagset[m->seltags] & 1 << i ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
  802. drw_text(drw, x, 0, w, bh, tags[i], urg & 1 << i);
  803. drw_rect(drw, x + 1, 1, dx, dx, m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
  804. occ & 1 << i, urg & 1 << i);
  805. x += w;
  806. }
  807. w = blw = TEXTW(m->ltsymbol);
  808. drw_setscheme(drw, &scheme[SchemeNorm]);
  809. drw_text(drw, x, 0, w, bh, m->ltsymbol, 0);
  810. x += w;
  811. xx = x;
  812. if (m == selmon) { /* status is only drawn on selected monitor */
  813. w = TEXTW(stext);
  814. x = m->ww - w;
  815. if (x < xx) {
  816. x = xx;
  817. w = m->ww - xx;
  818. }
  819. drw_text(drw, x, 0, w, bh, stext, 0);
  820. } else
  821. x = m->ww;
  822. if ((w = x - xx) > bh) {
  823. x = xx;
  824. if (m->sel) {
  825. drw_setscheme(drw, m == selmon ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
  826. drw_text(drw, x, 0, w, bh, m->sel->name, 0);
  827. drw_rect(drw, x + 1, 1, dx, dx, m->sel->isfixed, m->sel->isfloating, 0);
  828. } else {
  829. drw_setscheme(drw, &scheme[SchemeNorm]);
  830. drw_rect(drw, x, 0, w, bh, 1, 0, 1);
  831. }
  832. }
  833. drw_map(drw, m->barwin, 0, 0, m->ww, bh);
  834. }
  836. void
  837. drawbars(void)
  838. {
  839. Monitor *m;
  841. for (m = mons; m; m = m->next)
  842. drawbar(m);
  843. }
  845. void
  846. drawtabs(void) {
  847. Monitor *m;
  849. for(m = mons; m; m = m->next)
  850. drawtab(m);
  851. }
  853. static int
  854. cmpint(const void *p1, const void *p2) {
  855. /* The actual arguments to this function are "pointers to
  856. pointers to char", but strcmp(3) arguments are "pointers
  857. to char", hence the following cast plus dereference */
  858. return *((int*) p1) > * (int*) p2;
  859. }
  862. void
  863. drawtab(Monitor *m) {
  864. Client *c;
  865. int i;
  866. int itag = -1;
  867. char view_info[50];
  868. int view_info_w = 0;
  869. int sorted_label_widths[MAXTABS];
  870. int tot_width;
  871. int maxsize = bh;
  872. int x = 0;
  873. int w = 0;
  875. //view_info: indicate the tag which is displayed in the view
  876. for(i = 0; i < LENGTH(tags); ++i){
  877. if((selmon->tagset[selmon->seltags] >> i) & 1) {
  878. if(itag >=0){ //more than one tag selected
  879. itag = -1;
  880. break;
  881. }
  882. itag = i;
  883. }
  884. }
  885. if(0 <= itag && itag < LENGTH(tags)){
  886. snprintf(view_info, sizeof view_info, "[%s]", tags[itag]);
  887. } else {
  888. strncpy(view_info, "[...]", sizeof view_info);
  889. }
  890. view_info[sizeof(view_info) - 1 ] = 0;
  891. view_info_w = TEXTW(view_info);
  892. tot_width = view_info_w;
  894. /* Calculates number of labels and their width */
  895. m->ntabs = 0;
  896. for(c = m->clients; c; c = c->next){
  897. if(!ISVISIBLE(c)) continue;
  898. m->tab_widths[m->ntabs] = TEXTW(c->name);
  899. tot_width += m->tab_widths[m->ntabs];
  900. ++m->ntabs;
  901. if(m->ntabs >= MAXTABS) break;
  902. }
  904. if(tot_width > m->ww){ //not enough space to display the labels, they need to be truncated
  905. memcpy(sorted_label_widths, m->tab_widths, sizeof(int) * m->ntabs);
  906. qsort(sorted_label_widths, m->ntabs, sizeof(int), cmpint);
  907. tot_width = view_info_w;
  908. for(i = 0; i < m->ntabs; ++i){
  909. if(tot_width + (m->ntabs - i) * sorted_label_widths[i] > m->ww)
  910. break;
  911. tot_width += sorted_label_widths[i];
  912. }
  913. maxsize = (m->ww - tot_width) / (m->ntabs - i);
  914. } else{
  915. maxsize = m->ww;
  916. }
  917. i = 0;
  918. for(c = m->clients; c; c = c->next){
  919. if(!ISVISIBLE(c)) continue;
  920. if(i >= m->ntabs) break;
  921. if(m->tab_widths[i] > maxsize) m->tab_widths[i] = maxsize;
  922. w = m->tab_widths[i];
  923. drw_setscheme(drw, (c == m->sel) ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
  924. drw_text(drw, x, 0, w, th, c->name, 0);
  925. x += w;
  926. ++i;
  927. }
  929. drw_setscheme(drw, &scheme[SchemeNorm]);
  931. /* cleans interspace between window names and current viewed tag label */
  932. w = m->ww - view_info_w - x;
  933. drw_text(drw, x, 0, w, th, NULL, 0);
  935. /* view info */
  936. x += w;
  937. w = view_info_w;
  938. drw_text(drw, x, 0, w, th, view_info, 0);
  940. drw_map(drw, m->tabwin, 0, 0, m->ww, th);
  941. }
  943. void
  944. enternotify(XEvent *e)
  945. {
  946. Client *c;
  947. Monitor *m;
  948. XCrossingEvent *ev = &e->xcrossing;
  950. if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
  951. return;
  952. c = wintoclient(ev->window);
  953. m = c ? c->mon : wintomon(ev->window);
  954. if (m != selmon) {
  955. unfocus(selmon->sel, 1);
  956. selmon = m;
  957. } else if (!c || c == selmon->sel)
  958. return;
  959. focus(c);
  960. }
  962. void
  963. expose(XEvent *e)
  964. {
  965. Monitor *m;
  966. XExposeEvent *ev = &e->xexpose;
  968. if (ev->count == 0 && (m = wintomon(ev->window))) {
  969. drawbar(m);
  970. drawtab(m);
  971. }
  972. }
  974. void
  975. focus(Client *c)
  976. {
  977. if (!c || !ISVISIBLE(c))
  978. for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
  979. /* was if (selmon->sel) */
  980. if (selmon->sel && selmon->sel != c)
  981. unfocus(selmon->sel, 0);
  982. if (c) {
  983. if (c->mon != selmon)
  984. selmon = c->mon;
  985. if (c->isurgent)
  986. clearurgent(c);
  987. detachstack(c);
  988. attachstack(c);
  989. grabbuttons(c, 1);
  990. XSetWindowBorder(dpy, c->win, scheme[SchemeSel].border->pix);
  991. setfocus(c);
  992. } else {
  993. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  994. XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
  995. }
  996. selmon->sel = c;
  997. drawbars();
  998. drawtabs();
  999. }
  1001. /* there are some broken focus acquiring clients */
  1002. void
  1003. focusin(XEvent *e)
  1004. {
  1005. XFocusChangeEvent *ev = &e->xfocus;
  1007. if (selmon->sel && ev->window != selmon->sel->win)
  1008. setfocus(selmon->sel);
  1009. }
  1011. void
  1012. focusmon(const Arg *arg)
  1013. {
  1014. Monitor *m;
  1016. if (!mons->next)
  1017. return;
  1018. if ((m = dirtomon(arg->i)) == selmon)
  1019. return;
  1020. unfocus(selmon->sel, 0); /* s/1/0/ fixes input focus issues
  1021. in gedit and anjuta */
  1022. selmon = m;
  1023. focus(NULL);
  1024. }
  1026. void
  1027. focusstack(const Arg *arg)
  1028. {
  1029. Client *c = NULL, *i;
  1031. if (!selmon->sel)
  1032. return;
  1033. if (arg->i > 0) {
  1034. for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
  1035. if (!c)
  1036. for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
  1037. } else {
  1038. for (i = selmon->clients; i != selmon->sel; i = i->next)
  1039. if (ISVISIBLE(i))
  1040. c = i;
  1041. if (!c)
  1042. for (; i; i = i->next)
  1043. if (ISVISIBLE(i))
  1044. c = i;
  1045. }
  1046. if (c) {
  1047. focus(c);
  1048. restack(selmon);
  1049. }
  1050. }
  1052. void
  1053. focuswin(const Arg* arg){
  1054. int iwin = arg->i;
  1055. Client* c = NULL;
  1056. for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
  1057. if(ISVISIBLE(c)) --iwin;
  1058. };
  1059. if(c) {
  1060. focus(c);
  1061. restack(selmon);
  1062. }
  1063. }
  1065. Atom
  1066. getatomprop(Client *c, Atom prop)
  1067. {
  1068. int di;
  1069. unsigned long dl;
  1070. unsigned char *p = NULL;
  1071. Atom da, atom = None;
  1073. if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
  1074. &da, &di, &dl, &dl, &p) == Success && p) {
  1075. atom = *(Atom *)p;
  1076. XFree(p);
  1077. }
  1078. return atom;
  1079. }
  1081. int
  1082. getrootptr(int *x, int *y)
  1083. {
  1084. int di;
  1085. unsigned int dui;
  1086. Window dummy;
  1088. return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
  1089. }
  1091. long
  1092. getstate(Window w)
  1093. {
  1094. int format;
  1095. long result = -1;
  1096. unsigned char *p = NULL;
  1097. unsigned long n, extra;
  1098. Atom real;
  1100. if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
  1101. &real, &format, &n, &extra, (unsigned char **)&p) != Success)
  1102. return -1;
  1103. if (n != 0)
  1104. result = *p;
  1105. XFree(p);
  1106. return result;
  1107. }
  1109. int
  1110. gettextprop(Window w, Atom atom, char *text, unsigned int size)
  1111. {
  1112. char **list = NULL;
  1113. int n;
  1114. XTextProperty name;
  1116. if (!text || size == 0)
  1117. return 0;
  1118. text[0] = '\0';
  1119. XGetTextProperty(dpy, w, &name, atom);
  1120. if (!name.nitems)
  1121. return 0;
  1122. if (name.encoding == XA_STRING)
  1123. strncpy(text, (char *)name.value, size - 1);
  1124. else {
  1125. if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
  1126. strncpy(text, *list, size - 1);
  1127. XFreeStringList(list);
  1128. }
  1129. }
  1130. text[size - 1] = '\0';
  1131. XFree(name.value);
  1132. return 1;
  1133. }
  1135. void
  1136. grabbuttons(Client *c, int focused)
  1137. {
  1138. updatenumlockmask();
  1139. {
  1140. unsigned int i, j;
  1141. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  1142. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  1143. if (focused) {
  1144. for (i = 0; i < LENGTH(buttons); i++)
  1145. if (buttons[i].click == ClkClientWin)
  1146. for (j = 0; j < LENGTH(modifiers); j++)
  1147. XGrabButton(dpy, buttons[i].button,
  1148. buttons[i].mask | modifiers[j],
  1149. c->win, False, BUTTONMASK,
  1150. GrabModeAsync, GrabModeSync, None, None);
  1151. } else
  1152. XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
  1153. BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
  1154. }
  1155. }
  1157. void
  1158. grabkeys(void)
  1159. {
  1160. updatenumlockmask();
  1161. {
  1162. unsigned int i, j;
  1163. unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
  1164. KeyCode code;
  1166. XUngrabKey(dpy, AnyKey, AnyModifier, root);
  1167. for (i = 0; i < LENGTH(keys); i++)
  1168. if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
  1169. for (j = 0; j < LENGTH(modifiers); j++)
  1170. XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
  1171. True, GrabModeAsync, GrabModeAsync);
  1172. }
  1173. }
  1175. void
  1176. incnmaster(const Arg *arg)
  1177. {
  1178. selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
  1179. arrange(selmon);
  1180. }
  1182. #ifdef XINERAMA
  1183. static int
  1184. isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
  1185. {
  1186. while (n--)
  1187. if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
  1188. && unique[n].width == info->width && unique[n].height == info->height)
  1189. return 0;
  1190. return 1;
  1191. }
  1192. #endif /* XINERAMA */
  1194. void
  1195. keypress(XEvent *e)
  1196. {
  1197. unsigned int i;
  1198. KeySym keysym;
  1199. XKeyEvent *ev;
  1201. ev = &e->xkey;
  1202. keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
  1203. for (i = 0; i < LENGTH(keys); i++)
  1204. if (keysym == keys[i].keysym
  1205. && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
  1206. && keys[i].func)
  1207. keys[i].func(&(keys[i].arg));
  1208. }
  1210. void
  1211. killclient(const Arg *arg)
  1212. {
  1213. if (!selmon->sel)
  1214. return;
  1215. if (!sendevent(selmon->sel, wmatom[WMDelete])) {
  1216. XGrabServer(dpy);
  1217. XSetErrorHandler(xerrordummy);
  1218. XSetCloseDownMode(dpy, DestroyAll);
  1219. XKillClient(dpy, selmon->sel->win);
  1220. XSync(dpy, False);
  1221. XSetErrorHandler(xerror);
  1222. XUngrabServer(dpy);
  1223. }
  1224. }
  1226. void
  1227. manage(Window w, XWindowAttributes *wa)
  1228. {
  1229. Client *c, *t = NULL;
  1230. Window trans = None;
  1231. XWindowChanges wc;
  1233. c = ecalloc(1, sizeof(Client));
  1234. c->win = w;
  1235. updatetitle(c);
  1236. if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
  1237. c->mon = t->mon;
  1238. c->tags = t->tags;
  1239. } else {
  1240. c->mon = selmon;
  1241. applyrules(c);
  1242. }
  1243. /* geometry */
  1244. c->x = c->oldx = wa->x;
  1245. c->y = c->oldy = wa->y;
  1246. c->w = c->oldw = wa->width;
  1247. c->h = c->oldh = wa->height;
  1248. c->oldbw = wa->border_width;
  1250. if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
  1251. c->x = c->mon->mx + c->mon->mw - WIDTH(c);
  1252. if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
  1253. c->y = c->mon->my + c->mon->mh - HEIGHT(c);
  1254. c->x = MAX(c->x, c->mon->mx);
  1255. /* only fix client y-offset, if the client center might cover the bar */
  1256. c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
  1257. && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
  1258. c->bw = borderpx;
  1260. wc.border_width = c->bw;
  1261. XConfigureWindow(dpy, w, CWBorderWidth, &wc);
  1262. XSetWindowBorder(dpy, w, scheme[SchemeNorm].border->pix);
  1263. configure(c); /* propagates border_width, if size doesn't change */
  1264. updatewindowtype(c);
  1265. updatesizehints(c);
  1266. updatewmhints(c);
  1267. XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
  1268. grabbuttons(c, 0);
  1269. if (!c->isfloating)
  1270. c->isfloating = c->oldstate = trans != None || c->isfixed;
  1271. if (c->isfloating)
  1272. XRaiseWindow(dpy, c->win);
  1273. attach(c);
  1274. attachstack(c);
  1275. XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
  1276. (unsigned char *) &(c->win), 1);
  1277. XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
  1278. setclientstate(c, NormalState);
  1279. if (c->mon == selmon)
  1280. unfocus(selmon->sel, 0);
  1281. c->mon->sel = c;
  1282. arrange(c->mon);
  1283. XMapWindow(dpy, c->win);
  1284. focus(NULL);
  1285. }
  1287. void
  1288. mappingnotify(XEvent *e)
  1289. {
  1290. XMappingEvent *ev = &e->xmapping;
  1292. XRefreshKeyboardMapping(ev);
  1293. if (ev->request == MappingKeyboard)
  1294. grabkeys();
  1295. }
  1297. void
  1298. maprequest(XEvent *e)
  1299. {
  1300. static XWindowAttributes wa;
  1301. XMapRequestEvent *ev = &e->xmaprequest;
  1303. if (!XGetWindowAttributes(dpy, ev->window, &wa))
  1304. return;
  1305. if (wa.override_redirect)
  1306. return;
  1307. if (!wintoclient(ev->window))
  1308. manage(ev->window, &wa);
  1309. }
  1311. void
  1312. monocle(Monitor *m)
  1313. {
  1314. unsigned int n = 0;
  1315. Client *c;
  1317. for (c = m->clients; c; c = c->next)
  1318. if (ISVISIBLE(c))
  1319. n++;
  1320. if (n > 0) /* override layout symbol */
  1321. snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
  1322. for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
  1323. resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
  1324. }
  1326. void
  1327. motionnotify(XEvent *e)
  1328. {
  1329. static Monitor *mon = NULL;
  1330. Monitor *m;
  1331. XMotionEvent *ev = &e->xmotion;
  1333. if (ev->window != root)
  1334. return;
  1335. if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
  1336. unfocus(selmon->sel, 1);
  1337. selmon = m;
  1338. focus(NULL);
  1339. }
  1340. mon = m;
  1341. }
  1343. void
  1344. movemouse(const Arg *arg)
  1345. {
  1346. int x, y, ocx, ocy, nx, ny;
  1347. Client *c;
  1348. Monitor *m;
  1349. XEvent ev;
  1350. Time lasttime = 0;
  1352. if (!(c = selmon->sel))
  1353. return;
  1354. if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
  1355. return;
  1356. restack(selmon);
  1357. ocx = c->x;
  1358. ocy = c->y;
  1359. if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1360. None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
  1361. return;
  1362. if (!getrootptr(&x, &y))
  1363. return;
  1364. do {
  1365. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1366. switch(ev.type) {
  1367. case ConfigureRequest:
  1368. case Expose:
  1369. case MapRequest:
  1370. handler[ev.type](&ev);
  1371. break;
  1372. case MotionNotify:
  1373. if ((ev.xmotion.time - lasttime) <= (1000 / 60))
  1374. continue;
  1375. lasttime = ev.xmotion.time;
  1377. nx = ocx + (ev.xmotion.x - x);
  1378. ny = ocy + (ev.xmotion.y - y);
  1379. if (nx >= selmon->wx && nx <= selmon->wx + selmon->ww
  1380. && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
  1381. if (abs(selmon->wx - nx) < snap)
  1382. nx = selmon->wx;
  1383. else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
  1384. nx = selmon->wx + selmon->ww - WIDTH(c);
  1385. if (abs(selmon->wy - ny) < snap)
  1386. ny = selmon->wy;
  1387. else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
  1388. ny = selmon->wy + selmon->wh - HEIGHT(c);
  1389. if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1390. && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
  1391. togglefloating(NULL);
  1392. }
  1393. if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1394. resize(c, nx, ny, c->w, c->h, 1);
  1395. break;
  1396. }
  1397. } while (ev.type != ButtonRelease);
  1398. XUngrabPointer(dpy, CurrentTime);
  1399. if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
  1400. sendmon(c, m);
  1401. selmon = m;
  1402. focus(NULL);
  1403. }
  1404. }
  1406. Client *
  1407. nexttiled(Client *c)
  1408. {
  1409. for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
  1410. return c;
  1411. }
  1413. void
  1414. pop(Client *c)
  1415. {
  1416. detach(c);
  1417. attach(c);
  1418. focus(c);
  1419. arrange(c->mon);
  1420. }
  1422. void
  1423. propertynotify(XEvent *e)
  1424. {
  1425. Client *c;
  1426. Window trans;
  1427. XPropertyEvent *ev = &e->xproperty;
  1429. if ((ev->window == root) && (ev->atom == XA_WM_NAME))
  1430. updatestatus();
  1431. else if (ev->state == PropertyDelete)
  1432. return; /* ignore */
  1433. else if ((c = wintoclient(ev->window))) {
  1434. switch(ev->atom) {
  1435. default: break;
  1436. case XA_WM_TRANSIENT_FOR:
  1437. if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
  1438. (c->isfloating = (wintoclient(trans)) != NULL))
  1439. arrange(c->mon);
  1440. break;
  1441. case XA_WM_NORMAL_HINTS:
  1442. updatesizehints(c);
  1443. break;
  1444. case XA_WM_HINTS:
  1445. updatewmhints(c);
  1446. drawbars();
  1447. drawtabs();
  1448. break;
  1449. }
  1450. if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
  1451. updatetitle(c);
  1452. if (c == c->mon->sel)
  1453. drawbar(c->mon);
  1454. drawtab(c->mon);
  1455. }
  1456. if (ev->atom == netatom[NetWMWindowType])
  1457. updatewindowtype(c);
  1458. }
  1459. }
  1461. void
  1462. quit(const Arg *arg)
  1463. {
  1464. running = 0;
  1465. }
  1467. Monitor *
  1468. recttomon(int x, int y, int w, int h)
  1469. {
  1470. Monitor *m, *r = selmon;
  1471. int a, area = 0;
  1473. for (m = mons; m; m = m->next)
  1474. if ((a = INTERSECT(x, y, w, h, m)) > area) {
  1475. area = a;
  1476. r = m;
  1477. }
  1478. return r;
  1479. }
  1481. void
  1482. resize(Client *c, int x, int y, int w, int h, int interact)
  1483. {
  1484. if (applysizehints(c, &x, &y, &w, &h, interact))
  1485. resizeclient(c, x, y, w, h);
  1486. }
  1488. void
  1489. resizeclient(Client *c, int x, int y, int w, int h)
  1490. {
  1491. XWindowChanges wc;
  1493. c->oldx = c->x; c->x = wc.x = x;
  1494. c->oldy = c->y; c->y = wc.y = y;
  1495. c->oldw = c->w; c->w = wc.width = w;
  1496. c->oldh = c->h; c->h = wc.height = h;
  1497. wc.border_width = c->bw;
  1498. XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
  1499. configure(c);
  1500. XSync(dpy, False);
  1501. }
  1503. void
  1504. resizemouse(const Arg *arg)
  1505. {
  1506. int ocx, ocy, nw, nh;
  1507. Client *c;
  1508. Monitor *m;
  1509. XEvent ev;
  1510. Time lasttime = 0;
  1512. if (!(c = selmon->sel))
  1513. return;
  1514. if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
  1515. return;
  1516. restack(selmon);
  1517. ocx = c->x;
  1518. ocy = c->y;
  1519. if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
  1520. None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
  1521. return;
  1522. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1523. do {
  1524. XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
  1525. switch(ev.type) {
  1526. case ConfigureRequest:
  1527. case Expose:
  1528. case MapRequest:
  1529. handler[ev.type](&ev);
  1530. break;
  1531. case MotionNotify:
  1532. if ((ev.xmotion.time - lasttime) <= (1000 / 60))
  1533. continue;
  1534. lasttime = ev.xmotion.time;
  1536. nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
  1537. nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
  1538. if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
  1539. && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
  1540. {
  1541. if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
  1542. && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
  1543. togglefloating(NULL);
  1544. }
  1545. if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
  1546. resize(c, c->x, c->y, nw, nh, 1);
  1547. break;
  1548. }
  1549. } while (ev.type != ButtonRelease);
  1550. XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
  1551. XUngrabPointer(dpy, CurrentTime);
  1552. while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1553. if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
  1554. sendmon(c, m);
  1555. selmon = m;
  1556. focus(NULL);
  1557. }
  1558. }
  1560. void
  1561. restack(Monitor *m)
  1562. {
  1563. Client *c;
  1564. XEvent ev;
  1565. XWindowChanges wc;
  1567. drawbar(m);
  1568. drawtab(m);
  1569. if (!m->sel)
  1570. return;
  1571. if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
  1572. XRaiseWindow(dpy, m->sel->win);
  1573. if (m->lt[m->sellt]->arrange) {
  1574. wc.stack_mode = Below;
  1575. wc.sibling = m->barwin;
  1576. for (c = m->stack; c; c = c->snext)
  1577. if (!c->isfloating && ISVISIBLE(c)) {
  1578. XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
  1579. wc.sibling = c->win;
  1580. }
  1581. }
  1582. XSync(dpy, False);
  1583. while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  1584. }
  1586. void
  1587. run(void)
  1588. {
  1589. XEvent ev;
  1590. /* main event loop */
  1591. XSync(dpy, False);
  1592. while (running && !XNextEvent(dpy, &ev))
  1593. if (handler[ev.type])
  1594. handler[ev.type](&ev); /* call handler */
  1595. }
  1597. void
  1598. scan(void)
  1599. {
  1600. unsigned int i, num;
  1601. Window d1, d2, *wins = NULL;
  1602. XWindowAttributes wa;
  1604. if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  1605. for (i = 0; i < num; i++) {
  1606. if (!XGetWindowAttributes(dpy, wins[i], &wa)
  1607. || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  1608. continue;
  1609. if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
  1610. manage(wins[i], &wa);
  1611. }
  1612. for (i = 0; i < num; i++) { /* now the transients */
  1613. if (!XGetWindowAttributes(dpy, wins[i], &wa))
  1614. continue;
  1615. if (XGetTransientForHint(dpy, wins[i], &d1)
  1616. && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
  1617. manage(wins[i], &wa);
  1618. }
  1619. if (wins)
  1620. XFree(wins);
  1621. }
  1622. }
  1624. void
  1625. sendmon(Client *c, Monitor *m)
  1626. {
  1627. if (c->mon == m)
  1628. return;
  1629. unfocus(c, 1);
  1630. detach(c);
  1631. detachstack(c);
  1632. c->mon = m;
  1633. c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
  1634. attach(c);
  1635. attachstack(c);
  1636. focus(NULL);
  1637. arrange(NULL);
  1638. }
  1640. void
  1641. setclientstate(Client *c, long state)
  1642. {
  1643. long data[] = { state, None };
  1645. XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
  1646. PropModeReplace, (unsigned char *)data, 2);
  1647. }
  1649. int
  1650. sendevent(Client *c, Atom proto)
  1651. {
  1652. int n;
  1653. Atom *protocols;
  1654. int exists = 0;
  1655. XEvent ev;
  1657. if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
  1658. while (!exists && n--)
  1659. exists = protocols[n] == proto;
  1660. XFree(protocols);
  1661. }
  1662. if (exists) {
  1663. ev.type = ClientMessage;
  1664. ev.xclient.window = c->win;
  1665. ev.xclient.message_type = wmatom[WMProtocols];
  1666. ev.xclient.format = 32;
  1667. ev.xclient.data.l[0] = proto;
  1668. ev.xclient.data.l[1] = CurrentTime;
  1669. XSendEvent(dpy, c->win, False, NoEventMask, &ev);
  1670. }
  1671. return exists;
  1672. }
  1674. void
  1675. setfocus(Client *c)
  1676. {
  1677. if (!c->neverfocus) {
  1678. XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  1679. XChangeProperty(dpy, root, netatom[NetActiveWindow],
  1680. XA_WINDOW, 32, PropModeReplace,
  1681. (unsigned char *) &(c->win), 1);
  1682. }
  1683. sendevent(c, wmatom[WMTakeFocus]);
  1684. }
  1686. void
  1687. setfullscreen(Client *c, int fullscreen)
  1688. {
  1689. if (fullscreen && !c->isfullscreen) {
  1690. XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
  1691. PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
  1692. c->isfullscreen = 1;
  1693. c->oldstate = c->isfloating;
  1694. c->oldbw = c->bw;
  1695. c->bw = 0;
  1696. c->isfloating = 1;
  1697. resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
  1698. XRaiseWindow(dpy, c->win);
  1699. } else if (!fullscreen && c->isfullscreen){
  1700. XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
  1701. PropModeReplace, (unsigned char*)0, 0);
  1702. c->isfullscreen = 0;
  1703. c->isfloating = c->oldstate;
  1704. c->bw = c->oldbw;
  1705. c->x = c->oldx;
  1706. c->y = c->oldy;
  1707. c->w = c->oldw;
  1708. c->h = c->oldh;
  1709. resizeclient(c, c->x, c->y, c->w, c->h);
  1710. arrange(c->mon);
  1711. }
  1712. }
  1714. void
  1715. setlayout(const Arg *arg)
  1716. {
  1717. if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) {
  1718. selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
  1719. selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
  1720. }
  1721. if (arg && arg->v)
  1722. selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
  1723. selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
  1724. strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
  1725. if (selmon->sel)
  1726. arrange(selmon);
  1727. else
  1728. drawbar(selmon);
  1729. }
  1731. /* arg > 1.0 will set mfact absolutly */
  1732. void
  1733. setmfact(const Arg *arg)
  1734. {
  1735. float f;
  1737. if (!arg || !selmon->lt[selmon->sellt]->arrange)
  1738. return;
  1739. f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
  1740. if (f < 0.1 || f > 0.9)
  1741. return;
  1742. selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
  1743. arrange(selmon);
  1744. }
  1746. void
  1747. setup(void)
  1748. {
  1749. XSetWindowAttributes wa;
  1751. /* clean up any zombies immediately */
  1752. sigchld(0);
  1754. /* init screen */
  1755. screen = DefaultScreen(dpy);
  1756. sw = DisplayWidth(dpy, screen);
  1757. sh = DisplayHeight(dpy, screen);
  1758. root = RootWindow(dpy, screen);
  1759. drw = drw_create(dpy, screen, root, sw, sh);
  1760. drw_load_fonts(drw, fonts, LENGTH(fonts));
  1761. if (!drw->fontcount)
  1762. die("no fonts could be loaded.\n");
  1763. bh = drw->fonts[0]->h + 2;
  1764. th = bh;
  1765. updategeom();
  1766. /* init atoms */
  1767. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  1768. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  1769. wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
  1770. wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
  1771. netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
  1772. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  1773. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  1774. netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
  1775. netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
  1776. netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
  1777. netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
  1778. netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
  1779. /* init cursors */
  1780. cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
  1781. cursor[CurResize] = drw_cur_create(drw, XC_sizing);
  1782. cursor[CurMove] = drw_cur_create(drw, XC_fleur);
  1783. /* init appearance */
  1784. scheme[SchemeNorm].border = drw_clr_create(drw, normbordercolor);
  1785. scheme[SchemeNorm].bg = drw_clr_create(drw, normbgcolor);
  1786. scheme[SchemeNorm].fg = drw_clr_create(drw, normfgcolor);
  1787. scheme[SchemeSel].border = drw_clr_create(drw, selbordercolor);
  1788. scheme[SchemeSel].bg = drw_clr_create(drw, selbgcolor);
  1789. scheme[SchemeSel].fg = drw_clr_create(drw, selfgcolor);
  1790. /* init bars */
  1791. updatebars();
  1792. updatestatus();
  1793. /* EWMH support per view */
  1794. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  1795. PropModeReplace, (unsigned char *) netatom, NetLast);
  1796. XDeleteProperty(dpy, root, netatom[NetClientList]);
  1797. /* select for events */
  1798. wa.cursor = cursor[CurNormal]->cursor;
  1799. wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask|PointerMotionMask
  1800. |EnterWindowMask|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
  1801. XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
  1802. XSelectInput(dpy, root, wa.event_mask);
  1803. grabkeys();
  1804. focus(NULL);
  1805. }
  1807. void
  1808. showhide(Client *c)
  1809. {
  1810. if (!c)
  1811. return;
  1812. if (ISVISIBLE(c)) {
  1813. /* show clients top down */
  1814. XMoveWindow(dpy, c->win, c->x, c->y);
  1815. if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
  1816. resize(c, c->x, c->y, c->w, c->h, 0);
  1817. showhide(c->snext);
  1818. } else {
  1819. /* hide clients bottom up */
  1820. showhide(c->snext);
  1821. XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
  1822. }
  1823. }
  1825. void
  1826. sigchld(int unused)
  1827. {
  1828. if (signal(SIGCHLD, sigchld) == SIG_ERR)
  1829. die("can't install SIGCHLD handler:");
  1830. while (0 < waitpid(-1, NULL, WNOHANG));
  1831. }
  1833. void
  1834. spawn(const Arg *arg)
  1835. {
  1836. if (arg->v == dmenucmd)
  1837. dmenumon[0] = '0' + selmon->num;
  1838. if (fork() == 0) {
  1839. if (dpy)
  1840. close(ConnectionNumber(dpy));
  1841. setsid();
  1842. execvp(((char **)arg->v)[0], (char **)arg->v);
  1843. fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
  1844. perror(" failed");
  1845. exit(EXIT_SUCCESS);
  1846. }
  1847. }
  1849. void
  1850. tag(const Arg *arg)
  1851. {
  1852. if (selmon->sel && arg->ui & TAGMASK) {
  1853. selmon->sel->tags = arg->ui & TAGMASK;
  1854. focus(NULL);
  1855. arrange(selmon);
  1856. }
  1857. }
  1859. void
  1860. tagmon(const Arg *arg)
  1861. {
  1862. if (!selmon->sel || !mons->next)
  1863. return;
  1864. sendmon(selmon->sel, dirtomon(arg->i));
  1865. }
  1867. void
  1868. tile(Monitor *m)
  1869. {
  1870. unsigned int i, n, h, mw, my, ty;
  1871. Client *c;
  1873. for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
  1874. if (n == 0)
  1875. return;
  1877. if (n > m->nmaster)
  1878. mw = m->nmaster ? m->ww * m->mfact : 0;
  1879. else
  1880. mw = m->ww;
  1881. for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
  1882. if (i < m->nmaster) {
  1883. h = (m->wh - my) / (MIN(n, m->nmaster) - i);
  1884. resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
  1885. my += HEIGHT(c);
  1886. } else {
  1887. h = (m->wh - ty) / (n - i);
  1888. resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
  1889. ty += HEIGHT(c);
  1890. }
  1891. }
  1893. void
  1894. togglebar(const Arg *arg)
  1895. {
  1896. selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
  1897. updatebarpos(selmon);
  1898. XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
  1899. arrange(selmon);
  1900. }
  1902. void
  1903. tabmode(const Arg *arg) {
  1904. if(arg && arg->i >= 0)
  1905. selmon->showtab = arg->ui % showtab_nmodes;
  1906. else
  1907. selmon->showtab = (selmon->showtab + 1 ) % showtab_nmodes;
  1908. arrange(selmon);
  1909. }
  1912. void
  1913. togglefloating(const Arg *arg)
  1914. {
  1915. if (!selmon->sel)
  1916. return;
  1917. if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
  1918. return;
  1919. selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
  1920. if (selmon->sel->isfloating)
  1921. resize(selmon->sel, selmon->sel->x, selmon->sel->y,
  1922. selmon->sel->w, selmon->sel->h, 0);
  1923. arrange(selmon);
  1924. }
  1926. void
  1927. toggletag(const Arg *arg)
  1928. {
  1929. unsigned int newtags;
  1931. if (!selmon->sel)
  1932. return;
  1933. newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
  1934. if (newtags) {
  1935. selmon->sel->tags = newtags;
  1936. focus(NULL);
  1937. arrange(selmon);
  1938. }
  1939. }
  1941. void
  1942. toggleview(const Arg *arg)
  1943. {
  1944. unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
  1945. int i;
  1947. if (newtagset) {
  1948. if (newtagset == ~0) {
  1949. selmon->pertag->prevtag = selmon->pertag->curtag;
  1950. selmon->pertag->curtag = 0;
  1951. }
  1952. /* test if the user did not select the same tag */
  1953. if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
  1954. selmon->pertag->prevtag = selmon->pertag->curtag;
  1955. for (i=0; !(newtagset & 1 << i); i++) ;
  1956. selmon->pertag->curtag = i + 1;
  1957. }
  1958. selmon->tagset[selmon->seltags] = newtagset;
  1960. /* apply settings for this view */
  1961. selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
  1962. selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
  1963. selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
  1964. selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
  1965. selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
  1966. if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
  1967. togglebar(NULL);
  1968. focus(NULL);
  1969. arrange(selmon);
  1970. }
  1971. }
  1973. void
  1974. unfocus(Client *c, int setfocus)
  1975. {
  1976. if (!c)
  1977. return;
  1978. grabbuttons(c, 0);
  1979. XSetWindowBorder(dpy, c->win, scheme[SchemeNorm].border->pix);
  1980. if (setfocus) {
  1981. XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  1982. XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
  1983. }
  1984. }
  1986. void
  1987. unmanage(Client *c, int destroyed)
  1988. {
  1989. Monitor *m = c->mon;
  1990. XWindowChanges wc;
  1992. /* The server grab construct avoids race conditions. */
  1993. detach(c);
  1994. detachstack(c);
  1995. if (!destroyed) {
  1996. wc.border_width = c->oldbw;
  1997. XGrabServer(dpy);
  1998. XSetErrorHandler(xerrordummy);
  1999. XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
  2000. XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
  2001. setclientstate(c, WithdrawnState);
  2002. XSync(dpy, False);
  2003. XSetErrorHandler(xerror);
  2004. XUngrabServer(dpy);
  2005. }
  2006. free(c);
  2007. focus(NULL);
  2008. updateclientlist();
  2009. arrange(m);
  2010. }
  2012. void
  2013. unmapnotify(XEvent *e)
  2014. {
  2015. Client *c;
  2016. XUnmapEvent *ev = &e->xunmap;
  2018. if ((c = wintoclient(ev->window))) {
  2019. if (ev->send_event)
  2020. setclientstate(c, WithdrawnState);
  2021. else
  2022. unmanage(c, 0);
  2023. }
  2024. }
  2026. void
  2027. updatebars(void)
  2028. {
  2029. Monitor *m;
  2030. XSetWindowAttributes wa = {
  2031. .override_redirect = True,
  2032. .background_pixmap = ParentRelative,
  2033. .event_mask = ButtonPressMask|ExposureMask
  2034. };
  2035. for (m = mons; m; m = m->next) {
  2036. if (m->barwin)
  2037. continue;
  2038. m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
  2039. CopyFromParent, DefaultVisual(dpy, screen),
  2040. CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
  2041. XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
  2042. XMapRaised(dpy, m->barwin);
  2043. m->tabwin = XCreateWindow(dpy, root, m->wx, m->ty, m->ww, th, 0, DefaultDepth(dpy, screen),
  2044. CopyFromParent, DefaultVisual(dpy, screen),
  2045. CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
  2046. XDefineCursor(dpy, m->tabwin, cursor[CurNormal]->cursor);
  2047. XMapRaised(dpy, m->tabwin);
  2048. }
  2049. }
  2051. void
  2052. updatebarpos(Monitor *m)
  2053. {
  2054. Client *c;
  2055. int nvis = 0;
  2056. m->wy = m->my;
  2057. m->wh = m->mh;
  2058. if (m->showbar) {
  2059. m->wh -= bh;
  2060. m->by = m->topbar ? m->wy : m->wy + m->wh;
  2061. if (m->topbar )
  2062. m->wy+=bh;
  2063. }
  2064. else {
  2065. m->by = -bh;
  2066. }
  2068. for (c = m->clients; c; c=c->next) {
  2069. if(ISVISIBLE(c)) ++nvis;
  2070. }
  2072. if(m->showtab == showtab_always
  2073. || ((m->showtab == showtab_auto) && (nvis > 1) && (m->lt[m->sellt]->arrange == monocle))){
  2074. m->wh -= th;
  2075. m->ty = m->toptab ? m->wy : m->wy + m->wh;
  2076. if ( m->toptab )
  2077. m->wy += th;
  2078. } else {
  2079. m->ty = -th;
  2080. }
  2081. }
  2083. void
  2084. updateclientlist()
  2085. {
  2086. Client *c;
  2087. Monitor *m;
  2089. XDeleteProperty(dpy, root, netatom[NetClientList]);
  2090. for (m = mons; m; m = m->next)
  2091. for (c = m->clients; c; c = c->next)
  2092. XChangeProperty(dpy, root, netatom[NetClientList],
  2093. XA_WINDOW, 32, PropModeAppend,
  2094. (unsigned char *) &(c->win), 1);
  2095. }
  2097. int
  2098. updategeom(void)
  2099. {
  2100. int dirty = 0;
  2102. #ifdef XINERAMA
  2103. if (XineramaIsActive(dpy)) {
  2104. int i, j, n, nn;
  2105. Client *c;
  2106. Monitor *m;
  2107. XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
  2108. XineramaScreenInfo *unique = NULL;
  2110. for (n = 0, m = mons; m; m = m->next, n++);
  2111. /* only consider unique geometries as separate screens */
  2112. unique = ecalloc(nn, sizeof(XineramaScreenInfo));
  2113. for (i = 0, j = 0; i < nn; i++)
  2114. if (isuniquegeom(unique, j, &info[i]))
  2115. memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
  2116. XFree(info);
  2117. nn = j;
  2118. if (n <= nn) {
  2119. for (i = 0; i < (nn - n); i++) { /* new monitors available */
  2120. for (m = mons; m && m->next; m = m->next);
  2121. if (m)
  2122. m->next = createmon();
  2123. else
  2124. mons = createmon();
  2125. }
  2126. for (i = 0, m = mons; i < nn && m; m = m->next, i++)
  2127. if (i >= n
  2128. || (unique[i].x_org != m->mx || unique[i].y_org != m->my
  2129. || unique[i].width != m->mw || unique[i].height != m->mh))
  2130. {
  2131. dirty = 1;
  2132. m->num = i;
  2133. m->mx = m->wx = unique[i].x_org;
  2134. m->my = m->wy = unique[i].y_org;
  2135. m->mw = m->ww = unique[i].width;
  2136. m->mh = m->wh = unique[i].height;
  2137. updatebarpos(m);
  2138. }
  2139. } else {
  2140. /* less monitors available nn < n */
  2141. for (i = nn; i < n; i++) {
  2142. for (m = mons; m && m->next; m = m->next);
  2143. while (m->clients) {
  2144. dirty = 1;
  2145. c = m->clients;
  2146. m->clients = c->next;
  2147. detachstack(c);
  2148. c->mon = mons;
  2149. attach(c);
  2150. attachstack(c);
  2151. }
  2152. if (m == selmon)
  2153. selmon = mons;
  2154. cleanupmon(m);
  2155. }
  2156. }
  2157. free(unique);
  2158. } else
  2159. #endif /* XINERAMA */
  2160. /* default monitor setup */
  2161. {
  2162. if (!mons)
  2163. mons = createmon();
  2164. if (mons->mw != sw || mons->mh != sh) {
  2165. dirty = 1;
  2166. mons->mw = mons->ww = sw;
  2167. mons->mh = mons->wh = sh;
  2168. updatebarpos(mons);
  2169. }
  2170. }
  2171. if (dirty) {
  2172. selmon = mons;
  2173. selmon = wintomon(root);
  2174. }
  2175. return dirty;
  2176. }
  2178. void
  2179. updatenumlockmask(void)
  2180. {
  2181. unsigned int i, j;
  2182. XModifierKeymap *modmap;
  2184. numlockmask = 0;
  2185. modmap = XGetModifierMapping(dpy);
  2186. for (i = 0; i < 8; i++)
  2187. for (j = 0; j < modmap->max_keypermod; j++)
  2188. if (modmap->modifiermap[i * modmap->max_keypermod + j]
  2189. == XKeysymToKeycode(dpy, XK_Num_Lock))
  2190. numlockmask = (1 << i);
  2191. XFreeModifiermap(modmap);
  2192. }
  2194. void
  2195. updatesizehints(Client *c)
  2196. {
  2197. long msize;
  2198. XSizeHints size;
  2200. if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
  2201. /* size is uninitialized, ensure that size.flags aren't used */
  2202. size.flags = PSize;
  2203. if (size.flags & PBaseSize) {
  2204. c->basew = size.base_width;
  2205. c->baseh = size.base_height;
  2206. } else if (size.flags & PMinSize) {
  2207. c->basew = size.min_width;
  2208. c->baseh = size.min_height;
  2209. } else
  2210. c->basew = c->baseh = 0;
  2211. if (size.flags & PResizeInc) {
  2212. c->incw = size.width_inc;
  2213. c->inch = size.height_inc;
  2214. } else
  2215. c->incw = c->inch = 0;
  2216. if (size.flags & PMaxSize) {
  2217. c->maxw = size.max_width;
  2218. c->maxh = size.max_height;
  2219. } else
  2220. c->maxw = c->maxh = 0;
  2221. if (size.flags & PMinSize) {
  2222. c->minw = size.min_width;
  2223. c->minh = size.min_height;
  2224. } else if (size.flags & PBaseSize) {
  2225. c->minw = size.base_width;
  2226. c->minh = size.base_height;
  2227. } else
  2228. c->minw = c->minh = 0;
  2229. if (size.flags & PAspect) {
  2230. c->mina = (float)size.min_aspect.y / size.min_aspect.x;
  2231. c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
  2232. } else
  2233. c->maxa = c->mina = 0.0;
  2234. c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
  2235. && c->maxw == c->minw && c->maxh == c->minh);
  2236. }
  2238. void
  2239. updatetitle(Client *c)
  2240. {
  2241. if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
  2242. gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
  2243. if (c->name[0] == '\0') /* hack to mark broken clients */
  2244. strcpy(c->name, broken);
  2245. }
  2247. void
  2248. updatestatus(void)
  2249. {
  2250. if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
  2251. strcpy(stext, "dwm-"VERSION);
  2252. drawbar(selmon);
  2253. }
  2255. void
  2256. updatewindowtype(Client *c)
  2257. {
  2258. Atom state = getatomprop(c, netatom[NetWMState]);
  2259. Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
  2261. if (state == netatom[NetWMFullscreen])
  2262. setfullscreen(c, 1);
  2263. if (wtype == netatom[NetWMWindowTypeDialog])
  2264. c->isfloating = 1;
  2265. }
  2267. void
  2268. updatewmhints(Client *c)
  2269. {
  2270. XWMHints *wmh;
  2272. if ((wmh = XGetWMHints(dpy, c->win))) {
  2273. if (c == selmon->sel && wmh->flags & XUrgencyHint) {
  2274. wmh->flags &= ~XUrgencyHint;
  2275. XSetWMHints(dpy, c->win, wmh);
  2276. } else
  2277. c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
  2278. if (wmh->flags & InputHint)
  2279. c->neverfocus = !wmh->input;
  2280. else
  2281. c->neverfocus = 0;
  2282. XFree(wmh);
  2283. }
  2284. }
  2286. void
  2287. view(const Arg *arg)
  2288. {
  2289. int i;
  2290. unsigned int tmptag;
  2292. if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
  2293. return;
  2294. selmon->seltags ^= 1; /* toggle sel tagset */
  2295. if (arg->ui & TAGMASK) {
  2296. selmon->pertag->prevtag = selmon->pertag->curtag;
  2297. selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
  2298. if (arg->ui == ~0)
  2299. selmon->pertag->curtag = 0;
  2300. else {
  2301. for (i=0; !(arg->ui & 1 << i); i++) ;
  2302. selmon->pertag->curtag = i + 1;
  2303. }
  2304. } else {
  2305. tmptag = selmon->pertag->prevtag;
  2306. selmon->pertag->prevtag = selmon->pertag->curtag;
  2307. selmon->pertag->curtag = tmptag;
  2308. }
  2309. selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
  2310. selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
  2311. selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
  2312. selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
  2313. selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
  2314. if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
  2315. togglebar(NULL);
  2316. focus(NULL);
  2317. arrange(selmon);
  2318. }
  2320. Client *
  2321. wintoclient(Window w)
  2322. {
  2323. Client *c;
  2324. Monitor *m;
  2326. for (m = mons; m; m = m->next)
  2327. for (c = m->clients; c; c = c->next)
  2328. if (c->win == w)
  2329. return c;
  2330. return NULL;
  2331. }
  2333. Monitor *
  2334. wintomon(Window w)
  2335. {
  2336. int x, y;
  2337. Client *c;
  2338. Monitor *m;
  2340. if (w == root && getrootptr(&x, &y))
  2341. return recttomon(x, y, 1, 1);
  2342. for (m = mons; m; m = m->next)
  2343. if (w == m->barwin || w == m->tabwin)
  2344. return m;
  2345. if ((c = wintoclient(w)))
  2346. return c->mon;
  2347. return selmon;
  2348. }
  2350. /* There's no way to check accesses to destroyed windows, thus those cases are
  2351. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  2352. * default error handler, which may call exit. */
  2353. int
  2354. xerror(Display *dpy, XErrorEvent *ee)
  2355. {
  2356. if (ee->error_code == BadWindow
  2357. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  2358. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  2359. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  2360. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  2361. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  2362. || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
  2363. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
  2364. || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
  2365. return 0;
  2366. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  2367. ee->request_code, ee->error_code);
  2368. return xerrorxlib(dpy, ee); /* may call exit */
  2369. }
  2371. int
  2372. xerrordummy(Display *dpy, XErrorEvent *ee)
  2373. {
  2374. return 0;
  2375. }
  2377. /* Startup Error handler to check if another window manager
  2378. * is already running. */
  2379. int
  2380. xerrorstart(Display *dpy, XErrorEvent *ee)
  2381. {
  2382. die("dwm: another window manager is already running\n");
  2383. return -1;
  2384. }
  2386. void
  2387. zoom(const Arg *arg)
  2388. {
  2389. Client *c = selmon->sel;
  2391. if (!selmon->lt[selmon->sellt]->arrange
  2392. || (selmon->sel && selmon->sel->isfloating))
  2393. return;
  2394. if (c == nexttiled(selmon->clients))
  2395. if (!c || !(c = nexttiled(c->next)))
  2396. return;
  2397. pop(c);
  2398. }
  2400. int
  2401. main(int argc, char *argv[])
  2402. {
  2403. if (argc == 2 && !strcmp("-v", argv[1]))
  2404. die("dwm-"VERSION "\n");
  2405. else if (argc != 1)
  2406. die("usage: dwm [-v]\n");
  2407. if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
  2408. fputs("warning: no locale support\n", stderr);
  2409. if (!(dpy = XOpenDisplay(NULL)))
  2410. die("dwm: cannot open display\n");
  2411. checkotherwm();
  2412. setup();
  2413. scan();
  2414. run();
  2415. cleanup();
  2416. XCloseDisplay(dpy);
  2417. return EXIT_SUCCESS;
  2418. }
  2419.  
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