1 /* See LICENSE file for copyright and license details.
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.
9 * Calls to fetch an X event from the event queue are blocking. Due reading
10 * status text from standard input, a select()-driven main loop has been
11 * implemented which selects for reads on the X connection and STDIN_FILENO to
12 * handle all data smoothly. The event handlers of dwm are organized in an
13 * array which is accessed whenever a new event has been fetched. This allows
14 * event dispatching in O(1) time.
16 * Each child of the root window is called a client, except windows which have
17 * set the override_redirect flag. Clients are organized in a global
18 * doubly-linked client list, the focus history is remembered through a global
19 * stack list. Each client contains an array of Bools of the same size as the
20 * global tags array to indicate the tags of a client.
22 * Keys and tagging rules are organized as arrays and defined in config.h.
24 * To understand everything else, start reading main().
33 #include <sys/select.h>
34 #include <sys/types.h>
37 #include <X11/cursorfont.h>
38 #include <X11/keysym.h>
39 #include <X11/Xatom.h>
41 #include <X11/Xproto.h>
42 #include <X11/Xutil.h>
44 #include <X11/extensions/Xinerama.h>
48 #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
49 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
50 #define LENGTH(x) (sizeof x / sizeof x[0])
52 #define MOUSEMASK (BUTTONMASK | PointerMotionMask)
56 enum { BarTop, BarBot, BarOff }; /* bar position */
57 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
58 enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
59 enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
60 enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
63 typedef struct Client Client;
67 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
68 int minax, maxax, minay, maxay;
70 unsigned int border, oldborder;
71 Bool isbanned, isfixed, isfloating;
82 unsigned long norm[ColLast];
83 unsigned long sel[ColLast];
93 } DC; /* draw context */
98 void (*func)(const char *arg);
104 void (*arrange)(void);
122 int sx, sy, sw, sh, wax, way, wah, waw;
130 /* function declarations */
131 void applyrules(Client *c);
133 void attach(Client *c);
134 void attachstack(Client *c);
136 void buttonpress(XEvent *e);
137 void checkotherwm(void);
139 void compileregs(void);
140 void configure(Client *c);
141 void configurenotify(XEvent *e);
142 void configurerequest(XEvent *e);
143 void destroynotify(XEvent *e);
144 void detach(Client *c);
145 void detachstack(Client *c);
147 void drawsquare(Monitor *, Bool filled, Bool empty, unsigned long col[ColLast]);
148 void drawtext(Monitor *, const char *text, unsigned long col[ColLast]);
149 void *emallocz(unsigned int size);
150 void enternotify(XEvent *e);
151 void eprint(const char *errstr, ...);
152 void expose(XEvent *e);
153 void floating(void); /* default floating layout */
154 void focus(Client *c);
155 void focusin(XEvent *e);
156 void focusnext(const char *arg);
157 void focusprev(const char *arg);
158 Client *getclient(Window w);
159 unsigned long getcolor(const char *colstr);
160 long getstate(Window w);
161 Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
162 void grabbuttons(Client *c, Bool focused);
164 unsigned int idxoftag(const char *tag);
165 void initfont(Monitor*, const char *fontstr);
166 Bool isoccupied(Monitor *m, unsigned int t);
167 Bool isprotodel(Client *c);
168 Bool isvisible(Client *c, Monitor *m);
169 void keypress(XEvent *e);
170 void killclient(const char *arg);
171 void leavenotify(XEvent *e);
172 void manage(Window w, XWindowAttributes *wa);
173 void mappingnotify(XEvent *e);
174 void maprequest(XEvent *e);
175 void maximize(const char *arg);
176 void movemouse(Client *c);
177 Client *nexttiled(Client *c, Monitor *m);
178 void propertynotify(XEvent *e);
179 void quit(const char *arg);
180 void reapply(const char *arg);
181 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
182 void resizemouse(Client *c);
186 void setclientstate(Client *c, long state);
187 void setlayout(const char *arg);
188 void setmwfact(const char *arg);
190 void spawn(const char *arg);
191 void tag(const char *arg);
192 unsigned int textnw(Monitor*, const char *text, unsigned int len);
193 unsigned int textw(Monitor*, const char *text);
195 void togglebar(const char *arg);
196 void togglefloating(const char *arg);
197 void toggletag(const char *arg);
198 void toggleview(const char *arg);
199 void unban(Client *c);
200 void unmanage(Client *c);
201 void unmapnotify(XEvent *e);
202 void updatebarpos(Monitor *s);
203 void updatesizehints(Client *c);
204 void updatetitle(Client *c);
205 void view(const char *arg);
206 void viewprevtag(const char *arg); /* views previous selected tags */
207 int xerror(Display *dpy, XErrorEvent *ee);
208 int xerrordummy(Display *dsply, XErrorEvent *ee);
209 int xerrorstart(Display *dsply, XErrorEvent *ee);
210 void zoom(const char *arg);
211 int monitorat(int, int);
212 void movetomonitor(const char *arg);
213 void selectmonitor(const char *arg);
219 //int screen, sx, sy, sw, sh, wax, way, waw, wah;
220 int (*xerrorxlib)(Display *, XErrorEvent *);
221 unsigned int bh, bpos;
222 unsigned int blw = 0;
223 unsigned int numlockmask = 0;
224 void (*handler[LASTEvent]) (XEvent *) = {
225 [ButtonPress] = buttonpress,
226 [ConfigureRequest] = configurerequest,
227 [ConfigureNotify] = configurenotify,
228 [DestroyNotify] = destroynotify,
229 [EnterNotify] = enternotify,
232 [KeyPress] = keypress,
233 [LeaveNotify] = leavenotify,
234 [MappingNotify] = mappingnotify,
235 [MapRequest] = maprequest,
236 [PropertyNotify] = propertynotify,
237 [UnmapNotify] = unmapnotify
239 Atom wmatom[WMLast], netatom[NetLast];
240 Bool domwfact = True;
242 Bool otherwm, readin;
244 //Bool selscreen = True;
245 Client *clients = NULL;
247 Client *stack = NULL;
248 Cursor cursor[CurLast];
252 //Layout *layout = NULL;
253 //Window barwin, root;
258 /* configuration, allows nested code to access above variables */
261 //Bool prevtags[LENGTH(tags)];
263 /* function implementations */
265 applyrules(Client *c) {
266 static char buf[512];
269 Bool matched_tag = False;
270 Bool matched_monitor = False;
271 XClassHint ch = { 0 };
274 XGetClassHint(dpy, c->win, &ch);
275 snprintf(buf, sizeof buf, "%s:%s:%s",
276 ch.res_class ? ch.res_class : "",
277 ch.res_name ? ch.res_name : "", c->name);
278 for(i = 0; i < LENGTH(rules); i++)
279 if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
280 if (rules[i].monitor >= 0 && rules[i].monitor < mcount) {
281 matched_monitor = True;
282 c->monitor = rules[i].monitor;
285 c->isfloating = rules[i].isfloating;
286 for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {
287 if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
298 memcpy(c->tags, monitors[monitorat(-1, -1)].seltags, sizeof seltags);
299 if (!matched_monitor)
300 c->monitor = monitorat(-1, -1);
307 for(c = clients; c; c = c->next)
308 if(isvisible(c, &monitors[c->monitor]))
313 monitors[selmonitor].layout->arrange();
327 attachstack(Client *c) {
336 XMoveWindow(dpy, c->win, c->x + 3 * monitors[c->monitor].sw, c->y);
341 buttonpress(XEvent *e) {
344 XButtonPressedEvent *ev = &e->xbutton;
346 Monitor s = monitors[monitorat(-1, -1)];
348 if(ev->window == s.barwin) {
350 for(i = 0; i < LENGTH(tags); i++) {
351 x += textw(&s, tags[i]);
353 if(ev->button == Button1) {
354 if(ev->state & MODKEY)
359 else if(ev->button == Button3) {
360 if(ev->state & MODKEY)
368 if((ev->x < x + blw) && ev->button == Button1)
371 else if((c = getclient(ev->window))) {
373 if(CLEANMASK(ev->state) != MODKEY)
375 if(ev->button == Button1) {
376 if((s.layout->arrange == floating) || c->isfloating)
379 togglefloating(NULL);
382 else if(ev->button == Button2) {
383 if((floating != s.layout->arrange) && c->isfloating)
384 togglefloating(NULL);
388 else if(ev->button == Button3 && !c->isfixed) {
389 if((floating == s.layout->arrange) || c->isfloating)
392 togglefloating(NULL);
401 XSetErrorHandler(xerrorstart);
403 /* this causes an error if some other window manager is running */
404 XSelectInput(dpy, root, SubstructureRedirectMask);
407 eprint("dwm: another window manager is already running\n");
409 XSetErrorHandler(NULL);
410 xerrorxlib = XSetErrorHandler(xerror);
422 for(i = 0; i < mcount; i++) {
423 Monitor *m = &monitors[i];
425 XFreeFontSet(dpy, m->dc.font.set);
427 XFreeFont(dpy, m->dc.font.xfont);
428 XUngrabKey(dpy, AnyKey, AnyModifier, root);
429 XFreePixmap(dpy, m->dc.drawable);
430 XFreeGC(dpy, m->dc.gc);
431 XDestroyWindow(dpy, m->barwin);
432 XFreeCursor(dpy, cursor[CurNormal]);
433 XFreeCursor(dpy, cursor[CurResize]);
434 XFreeCursor(dpy, cursor[CurMove]);
435 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
447 regs = emallocz(LENGTH(rules) * sizeof(Regs));
448 for(i = 0; i < LENGTH(rules); i++) {
450 reg = emallocz(sizeof(regex_t));
451 if(regcomp(reg, rules[i].prop, REG_EXTENDED))
454 regs[i].propregex = reg;
457 reg = emallocz(sizeof(regex_t));
458 if(regcomp(reg, rules[i].tags, REG_EXTENDED))
461 regs[i].tagregex = reg;
467 configure(Client *c) {
470 ce.type = ConfigureNotify;
478 ce.border_width = c->border;
480 ce.override_redirect = False;
481 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
485 configurenotify(XEvent *e) {
486 XConfigureEvent *ev = &e->xconfigure;
487 Monitor *m = &monitors[selmonitor];
489 if(ev->window == root && (ev->width != m->sw || ev->height != m->sh)) {
492 XFreePixmap(dpy, dc.drawable);
493 dc.drawable = XCreatePixmap(dpy, root, m->sw, bh, DefaultDepth(dpy, screen));
494 XResizeWindow(dpy, m->barwin, m->sw, bh);
501 configurerequest(XEvent *e) {
503 XConfigureRequestEvent *ev = &e->xconfigurerequest;
506 if((c = getclient(ev->window))) {
507 Monitor *m = &monitors[c->monitor];
508 if(ev->value_mask & CWBorderWidth)
509 c->border = ev->border_width;
510 if(c->isfixed || c->isfloating || (floating == m->layout->arrange)) {
511 if(ev->value_mask & CWX)
513 if(ev->value_mask & CWY)
515 if(ev->value_mask & CWWidth)
517 if(ev->value_mask & CWHeight)
519 if((c->x - m->sx + c->w) > m->sw && c->isfloating)
520 c->x = m->sx + (m->sw / 2 - c->w / 2); /* center in x direction */
521 if((c->y - m->sy + c->h) > m->sh && c->isfloating)
522 c->y = m->sy + (m->sh / 2 - c->h / 2); /* center in y direction */
523 if((ev->value_mask & (CWX | CWY))
524 && !(ev->value_mask & (CWWidth | CWHeight)))
526 if(isvisible(c, &monitors[monitorat(-1,-1)]))
527 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
535 wc.width = ev->width;
536 wc.height = ev->height;
537 wc.border_width = ev->border_width;
538 wc.sibling = ev->above;
539 wc.stack_mode = ev->detail;
540 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
546 destroynotify(XEvent *e) {
548 XDestroyWindowEvent *ev = &e->xdestroywindow;
550 if((c = getclient(ev->window)))
557 c->prev->next = c->next;
559 c->next->prev = c->prev;
562 c->next = c->prev = NULL;
566 detachstack(Client *c) {
569 for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
577 for(s = 0; s < mcount; ++s) {
578 Monitor *m = &monitors[s];
580 for(i = 0; i < LENGTH(tags); i++) {
581 m->dc.w = textw(m, tags[i]);
583 drawtext(m, tags[i], m->dc.sel);
584 drawsquare(m, sel && sel->tags[i] && sel->monitor == m->id, isoccupied(m, i), m->dc.sel);
587 drawtext(m, tags[i], m->dc.norm);
588 drawsquare(m, sel && sel->tags[i] && sel->monitor == m->id, isoccupied(m, i), m->dc.norm);
593 drawtext(m, m->layout->symbol, m->dc.norm);
594 x = m->dc.x + m->dc.w;
595 m->dc.w = textw(m, stext);
596 m->dc.x = m->sw - m->dc.w;
601 drawtext(m, stext, m->dc.norm);
602 if((m->dc.w = m->dc.x - x) > bh) {
604 if(sel && sel->monitor == m->id) {
605 drawtext(m, sel->name, m->dc.sel);
606 drawsquare(m, False, sel->isfloating, m->dc.sel);
609 drawtext(m, NULL, m->dc.norm);
611 XCopyArea(dpy, m->dc.drawable, m->barwin, m->dc.gc, 0, 0, m->sw, bh, 0, 0);
617 drawsquare(Monitor *m, Bool filled, Bool empty, unsigned long col[ColLast]) {
620 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
622 gcv.foreground = col[ColFG];
623 XChangeGC(dpy, m->dc.gc, GCForeground, &gcv);
624 x = (m->dc.font.ascent + m->dc.font.descent + 2) / 4;
628 r.width = r.height = x + 1;
629 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
632 r.width = r.height = x;
633 XDrawRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
638 drawtext(Monitor *m, const char *text, unsigned long col[ColLast]) {
640 static char buf[256];
641 unsigned int len, olen;
642 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
644 XSetForeground(dpy, m->dc.gc, col[ColBG]);
645 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
649 olen = len = strlen(text);
650 if(len >= sizeof buf)
651 len = sizeof buf - 1;
652 memcpy(buf, text, len);
654 h = m->dc.font.ascent + m->dc.font.descent;
655 y = m->dc.y + (m->dc.h / 2) - (h / 2) + m->dc.font.ascent;
656 x = m->dc.x + (h / 2);
657 /* shorten text if necessary */
658 while(len && (w = textnw(m, buf, len)) > m->dc.w - h)
669 return; /* too long */
670 XSetForeground(dpy, m->dc.gc, col[ColFG]);
672 XmbDrawString(dpy, m->dc.drawable, m->dc.font.set, m->dc.gc, x, y, buf, len);
674 XDrawString(dpy, m->dc.drawable, m->dc.gc, x, y, buf, len);
678 emallocz(unsigned int size) {
679 void *res = calloc(1, size);
682 eprint("fatal: could not malloc() %u bytes\n", size);
687 enternotify(XEvent *e) {
689 XCrossingEvent *ev = &e->xcrossing;
691 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
693 if((c = getclient(ev->window)))
695 else if(ev->window == root) {
702 eprint(const char *errstr, ...) {
705 va_start(ap, errstr);
706 vfprintf(stderr, errstr, ap);
713 XExposeEvent *ev = &e->xexpose;
716 if(ev->window == monitors[selmonitor].barwin)
722 floating(void) { /* default floating layout */
725 domwfact = dozoom = False;
726 for(c = clients; c; c = c->next)
727 if(isvisible(c, &monitors[selmonitor]))
728 resize(c, c->x, c->y, c->w, c->h, True);
733 Monitor *m = &monitors[monitorat(-1, -1)];
734 if(!c || (c && !isvisible(c, m)))
735 for(c = stack; c && !isvisible(c, m); c = c->snext);
736 if(sel && sel != c) {
737 grabbuttons(sel, False);
738 XSetWindowBorder(dpy, sel->win, monitors[sel->monitor].dc.norm[ColBorder]);
743 grabbuttons(c, True);
748 XSetWindowBorder(dpy, c->win, monitors[c->monitor].dc.sel[ColBorder]);
749 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
750 selmonitor = monitorat(c->x, c->y);
753 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
754 selmonitor = monitorat(-1, -1);
759 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
760 XFocusChangeEvent *ev = &e->xfocus;
762 if(sel && ev->window != sel->win)
763 XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
767 focusnext(const char *arg) {
769 Monitor *m = &monitors[selmonitor];
773 for(c = sel->next; c && !isvisible(c, m); c = c->next);
775 for(c = clients; c && !isvisible(c, m); c = c->next);
783 focusprev(const char *arg) {
785 Monitor *m = &monitors[selmonitor];
789 for(c = sel->prev; c && !isvisible(c, m); c = c->prev);
791 for(c = clients; c && c->next; c = c->next);
792 for(; c && !isvisible(c, m); c = c->prev);
801 getclient(Window w) {
804 for(c = clients; c && c->win != w; c = c->next);
809 getcolor(const char *colstr) {
810 Colormap cmap = DefaultColormap(dpy, screen);
813 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
814 eprint("error, cannot allocate color '%s'\n", colstr);
822 unsigned char *p = NULL;
823 unsigned long n, extra;
826 status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
827 &real, &format, &n, &extra, (unsigned char **)&p);
828 if(status != Success)
837 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
842 if(!text || size == 0)
845 XGetTextProperty(dpy, w, &name, atom);
848 if(name.encoding == XA_STRING)
849 strncpy(text, (char *)name.value, size - 1);
851 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
853 strncpy(text, *list, size - 1);
854 XFreeStringList(list);
857 text[size - 1] = '\0';
863 grabbuttons(Client *c, Bool focused) {
864 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
867 XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
868 GrabModeAsync, GrabModeSync, None, None);
869 XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
870 GrabModeAsync, GrabModeSync, None, None);
871 XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
872 GrabModeAsync, GrabModeSync, None, None);
873 XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
874 GrabModeAsync, GrabModeSync, None, None);
876 XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
877 GrabModeAsync, GrabModeSync, None, None);
878 XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
879 GrabModeAsync, GrabModeSync, None, None);
880 XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
881 GrabModeAsync, GrabModeSync, None, None);
882 XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
883 GrabModeAsync, GrabModeSync, None, None);
885 XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
886 GrabModeAsync, GrabModeSync, None, None);
887 XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
888 GrabModeAsync, GrabModeSync, None, None);
889 XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
890 GrabModeAsync, GrabModeSync, None, None);
891 XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
892 GrabModeAsync, GrabModeSync, None, None);
895 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
896 GrabModeAsync, GrabModeSync, None, None);
904 XUngrabKey(dpy, AnyKey, AnyModifier, root);
905 for(i = 0; i < LENGTH(keys); i++) {
906 code = XKeysymToKeycode(dpy, keys[i].keysym);
907 XGrabKey(dpy, code, keys[i].mod, root, True,
908 GrabModeAsync, GrabModeAsync);
909 XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
910 GrabModeAsync, GrabModeAsync);
911 XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
912 GrabModeAsync, GrabModeAsync);
913 XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
914 GrabModeAsync, GrabModeAsync);
919 idxoftag(const char *tag) {
922 for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
923 return (i < LENGTH(tags)) ? i : 0;
927 initfont(Monitor *m, const char *fontstr) {
928 char *def, **missing;
933 XFreeFontSet(dpy, m->dc.font.set);
934 m->dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
937 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
938 XFreeStringList(missing);
941 XFontSetExtents *font_extents;
942 XFontStruct **xfonts;
944 m->dc.font.ascent = m->dc.font.descent = 0;
945 font_extents = XExtentsOfFontSet(m->dc.font.set);
946 n = XFontsOfFontSet(m->dc.font.set, &xfonts, &font_names);
947 for(i = 0, m->dc.font.ascent = 0, m->dc.font.descent = 0; i < n; i++) {
948 if(m->dc.font.ascent < (*xfonts)->ascent)
949 m->dc.font.ascent = (*xfonts)->ascent;
950 if(m->dc.font.descent < (*xfonts)->descent)
951 m->dc.font.descent = (*xfonts)->descent;
957 XFreeFont(dpy, m->dc.font.xfont);
958 m->dc.font.xfont = NULL;
959 if(!(m->dc.font.xfont = XLoadQueryFont(dpy, fontstr))
960 && !(m->dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
961 eprint("error, cannot load font: '%s'\n", fontstr);
962 m->dc.font.ascent = m->dc.font.xfont->ascent;
963 m->dc.font.descent = m->dc.font.xfont->descent;
965 m->dc.font.height = m->dc.font.ascent + m->dc.font.descent;
969 isoccupied(Monitor *m, unsigned int t) {
972 for(c = clients; c; c = c->next)
973 if(c->tags[t] && c->monitor == m->id)
979 isprotodel(Client *c) {
984 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
985 for(i = 0; !ret && i < n; i++)
986 if(protocols[i] == wmatom[WMDelete])
994 isvisible(Client *c, Monitor *m) {
997 for(i = 0; i < LENGTH(tags); i++)
998 if(c->tags[i] && monitors[c->monitor].seltags[i] && m->id == c->monitor)
1004 keypress(XEvent *e) {
1010 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1011 for(i = 0; i < LENGTH(keys); i++)
1012 if(keysym == keys[i].keysym
1013 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
1016 keys[i].func(keys[i].arg);
1021 killclient(const char *arg) {
1026 if(isprotodel(sel)) {
1027 ev.type = ClientMessage;
1028 ev.xclient.window = sel->win;
1029 ev.xclient.message_type = wmatom[WMProtocols];
1030 ev.xclient.format = 32;
1031 ev.xclient.data.l[0] = wmatom[WMDelete];
1032 ev.xclient.data.l[1] = CurrentTime;
1033 XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
1036 XKillClient(dpy, sel->win);
1040 leavenotify(XEvent *e) {
1041 XCrossingEvent *ev = &e->xcrossing;
1043 if((ev->window == root) && !ev->same_screen) {
1050 manage(Window w, XWindowAttributes *wa) {
1051 Client *c, *t = NULL;
1056 c = emallocz(sizeof(Client));
1057 c->tags = emallocz(sizeof seltags);
1061 Monitor *m = &monitors[c->monitor];
1067 c->oldborder = wa->border_width;
1069 if (monitorat(c->x, c->y) != c->monitor) {
1074 if(c->w == m->sw && c->h == m->sh) {
1077 c->border = wa->border_width;
1080 if(c->x + c->w + 2 * c->border > m->wax + m->waw)
1081 c->x = m->wax + m->waw - c->w - 2 * c->border;
1082 if(c->y + c->h + 2 * c->border > m->way + m->wah)
1083 c->y = m->way + m->wah - c->h - 2 * c->border;
1088 c->border = BORDERPX;
1090 wc.border_width = c->border;
1091 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1092 XSetWindowBorder(dpy, w, m->dc.norm[ColBorder]);
1093 configure(c); /* propagates border_width, if size doesn't change */
1095 XSelectInput(dpy, w, EnterWindowMask | FocusChangeMask | PropertyChangeMask | StructureNotifyMask);
1096 grabbuttons(c, False);
1098 if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
1099 for(t = clients; t && t->win != trans; t = t->next);
1101 memcpy(c->tags, t->tags, sizeof seltags);
1103 c->isfloating = (rettrans == Success) || c->isfixed;
1106 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
1108 XMapWindow(dpy, c->win);
1109 setclientstate(c, NormalState);
1114 mappingnotify(XEvent *e) {
1115 XMappingEvent *ev = &e->xmapping;
1117 XRefreshKeyboardMapping(ev);
1118 if(ev->request == MappingKeyboard)
1123 maprequest(XEvent *e) {
1124 static XWindowAttributes wa;
1125 XMapRequestEvent *ev = &e->xmaprequest;
1127 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1129 if(wa.override_redirect)
1131 if(!getclient(ev->window))
1132 manage(ev->window, &wa);
1136 maximize(const char *arg) {
1138 if(!sel || (!sel->isfloating && layout->arrange != floating))
1140 resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
1145 movemouse(Client *c) {
1146 int x1, y1, ocx, ocy, di, nx, ny;
1153 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1154 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1156 XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
1158 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
1161 XUngrabPointer(dpy, CurrentTime);
1163 case ConfigureRequest:
1166 handler[ev.type](&ev);
1170 nx = ocx + (ev.xmotion.x - x1);
1171 ny = ocy + (ev.xmotion.y - y1);
1172 Monitor *m = &monitors[monitorat(nx, ny)];
1173 if(abs(m->wax - nx) < SNAP)
1175 else if(abs((m->wax + m->waw) - (nx + c->w + 2 * c->border)) < SNAP)
1176 nx = m->wax + m->waw - c->w - 2 * c->border;
1177 if(abs(m->way - ny) < SNAP)
1179 else if(abs((m->way + m->wah) - (ny + c->h + 2 * c->border)) < SNAP)
1180 ny = m->way + m->wah - c->h - 2 * c->border;
1181 resize(c, nx, ny, c->w, c->h, False);
1182 memcpy(c->tags, monitors[monitorat(nx, ny)].seltags, sizeof seltags);
1189 nexttiled(Client *c, Monitor *m) {
1190 for(; c && (c->isfloating || !isvisible(c, m)); c = c->next);
1195 propertynotify(XEvent *e) {
1198 XPropertyEvent *ev = &e->xproperty;
1200 if(ev->state == PropertyDelete)
1201 return; /* ignore */
1202 if((c = getclient(ev->window))) {
1205 case XA_WM_TRANSIENT_FOR:
1206 XGetTransientForHint(dpy, c->win, &trans);
1207 if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
1210 case XA_WM_NORMAL_HINTS:
1214 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1223 quit(const char *arg) {
1224 readin = running = False;
1228 reapply(const char *arg) {
1229 static Bool zerotags[LENGTH(tags)] = { 0 };
1232 for(c = clients; c; c = c->next) {
1233 memcpy(c->tags, zerotags, sizeof zerotags);
1240 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
1242 Monitor scr = monitors[monitorat(x, y)];
1243 c->monitor = scr.id;
1246 /* set minimum possible */
1252 /* temporarily remove base dimensions */
1256 /* adjust for aspect limits */
1257 if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
1258 if (w * c->maxay > h * c->maxax)
1259 w = h * c->maxax / c->maxay;
1260 else if (w * c->minay < h * c->minax)
1261 h = w * c->minay / c->minax;
1264 /* adjust for increment value */
1270 /* restore base dimensions */
1274 if(c->minw > 0 && w < c->minw)
1276 if(c->minh > 0 && h < c->minh)
1278 if(c->maxw > 0 && w > c->maxw)
1280 if(c->maxh > 0 && h > c->maxh)
1283 if(w <= 0 || h <= 0)
1285 /* TODO: offscreen appearance fixes */
1288 x = scr.sw - w - 2 * c->border;
1290 y = scr.sh - h - 2 * c->border;
1291 if(x + w + 2 * c->border < scr.sx)
1293 if(y + h + 2 * c->border < scr.sy)
1296 if(c->x != x || c->y != y || c->w != w || c->h != h) {
1299 c->w = wc.width = w;
1300 c->h = wc.height = h;
1301 wc.border_width = c->border;
1302 XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
1309 resizemouse(Client *c) {
1316 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1317 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1319 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
1321 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
1324 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
1325 c->w + c->border - 1, c->h + c->border - 1);
1326 XUngrabPointer(dpy, CurrentTime);
1327 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1329 case ConfigureRequest:
1332 handler[ev.type](&ev);
1336 if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
1338 if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
1340 resize(c, c->x, c->y, nw, nh, True);
1356 if(sel->isfloating || (monitors[selmonitor].layout->arrange == floating))
1357 XRaiseWindow(dpy, sel->win);
1358 if(monitors[selmonitor].layout->arrange != floating) {
1359 wc.stack_mode = Below;
1360 wc.sibling = monitors[selmonitor].barwin;
1361 if(!sel->isfloating) {
1362 XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
1363 wc.sibling = sel->win;
1365 for(s = 0; s < mcount; s++) {
1366 for(c = nexttiled(clients, &monitors[s]); c; c = nexttiled(c->next, &monitors[s])) {
1369 XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
1370 wc.sibling = c->win;
1375 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1381 char buf[sizeof stext];
1384 unsigned int len, offset;
1387 /* main event loop, also reads status text from stdin */
1389 xfd = ConnectionNumber(dpy);
1392 len = sizeof stext - 1;
1393 buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
1397 FD_SET(STDIN_FILENO, &rd);
1399 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
1402 eprint("select failed\n");
1404 if(FD_ISSET(STDIN_FILENO, &rd)) {
1405 switch((r = read(STDIN_FILENO, buf + offset, len - offset))) {
1407 strncpy(stext, strerror(errno), len);
1411 strncpy(stext, "EOF", 4);
1415 for(p = buf + offset; r > 0; p++, r--, offset++)
1416 if(*p == '\n' || *p == '\0') {
1418 strncpy(stext, buf, len);
1419 p += r - 1; /* p is buf + offset + r - 1 */
1420 for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
1423 memmove(buf, p - r + 1, r);
1430 while(XPending(dpy)) {
1431 XNextEvent(dpy, &ev);
1432 if(handler[ev.type])
1433 (handler[ev.type])(&ev); /* call handler */
1440 unsigned int i, num;
1441 Window *wins, d1, d2;
1442 XWindowAttributes wa;
1445 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1446 for(i = 0; i < num; i++) {
1447 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1448 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1450 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1451 manage(wins[i], &wa);
1453 for(i = 0; i < num; i++) { /* now the transients */
1454 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1456 if(XGetTransientForHint(dpy, wins[i], &d1)
1457 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1458 manage(wins[i], &wa);
1466 setclientstate(Client *c, long state) {
1467 long data[] = {state, None};
1469 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1470 PropModeReplace, (unsigned char *)data, 2);
1474 setlayout(const char *arg) {
1476 Monitor *m = &monitors[monitorat(-1, -1)];
1480 if(m->layout == &layouts[LENGTH(layouts)])
1481 m->layout = &layouts[0];
1484 for(i = 0; i < LENGTH(layouts); i++)
1485 if(!strcmp(arg, layouts[i].symbol))
1487 if(i == LENGTH(layouts))
1489 m->layout = &layouts[i];
1498 setmwfact(const char *arg) {
1501 Monitor *m = &monitors[monitorat(-1, -1)];
1505 /* arg handling, manipulate mwfact */
1508 else if(sscanf(arg, "%lf", &delta) == 1) {
1509 if(arg[0] == '+' || arg[0] == '-')
1515 else if(m->mwfact > 0.9)
1523 unsigned int i, j, k;
1524 XModifierKeymap *modmap;
1525 XSetWindowAttributes wa;
1528 XineramaScreenInfo *info = NULL;
1531 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1532 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1533 wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
1534 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1535 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1536 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1537 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1538 PropModeReplace, (unsigned char *) netatom, NetLast);
1541 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1542 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1543 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1546 /* init modifier map */
1547 modmap = XGetModifierMapping(dpy);
1548 for(i = 0; i < 8; i++)
1549 for(j = 0; j < modmap->max_keypermod; j++) {
1550 if(modmap->modifiermap[i * modmap->max_keypermod + j]
1551 == XKeysymToKeycode(dpy, XK_Num_Lock))
1552 numlockmask = (1 << i);
1554 XFreeModifiermap(modmap);
1556 /* select for events */
1557 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
1558 | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
1559 wa.cursor = cursor[CurNormal];
1560 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
1561 XSelectInput(dpy, root, wa.event_mask);
1569 if (XineramaIsActive(dpy)) {
1570 info = XineramaQueryScreens(dpy, &s);
1573 monitors = emallocz(s*sizeof(Monitor));
1576 for(i = 0; i < s; i++) {
1579 monitors[i].sx = info[i].x_org;
1580 monitors[i].sy = info[i].y_org;
1581 monitors[i].sw = info[i].width;
1582 monitors[i].sh = info[i].height;
1587 monitors[i].sw = DisplayWidth(dpy, screen);
1588 monitors[i].sh = DisplayHeight(dpy, screen);
1592 monitors[i].seltags = emallocz(LENGTH(tags)*sizeof(char*));
1593 monitors[i].prevtags = emallocz(LENGTH(tags)*sizeof(char*));
1595 memcpy(monitors[i].seltags, seltags, sizeof seltags);
1596 memcpy(monitors[i].prevtags, seltags, sizeof seltags);
1598 /* init appearance */
1599 monitors[i].dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
1600 monitors[i].dc.norm[ColBG] = getcolor(NORMBGCOLOR);
1601 monitors[i].dc.norm[ColFG] = getcolor(NORMFGCOLOR);
1602 monitors[i].dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
1603 monitors[i].dc.sel[ColBG] = getcolor(SELBGCOLOR);
1604 monitors[i].dc.sel[ColFG] = getcolor(SELFGCOLOR);
1605 initfont(&(monitors[i]), FONT);
1606 monitors[i].dc.h = bh = monitors[i].dc.font.height + 2;
1609 monitors[i].mwfact = MWFACT;
1610 monitors[i].layout = &layouts[0];
1611 for(blw = k = 0; k < LENGTH(layouts); k++) {
1612 j = textw(&monitors[i], layouts[k].symbol);
1618 wa.override_redirect = 1;
1619 wa.background_pixmap = ParentRelative;
1620 wa.event_mask = ButtonPressMask | ExposureMask;
1623 monitors[i].barwin = XCreateWindow(dpy, root, monitors[i].sx, monitors[i].sy, monitors[i].sw, bh, 0,
1624 DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
1625 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
1626 XDefineCursor(dpy, monitors[i].barwin, cursor[CurNormal]);
1627 updatebarpos(&monitors[i]);
1628 XMapRaised(dpy, monitors[i].barwin);
1629 strcpy(stext, "dwm-"VERSION);
1630 monitors[i].dc.drawable = XCreatePixmap(dpy, root, monitors[i].sw, bh, DefaultDepth(dpy, screen));
1631 g = XCreateGC(dpy, root, 0, 0);
1632 monitors[i].dc.gc = XCreateGC(dpy, root, 0, 0);
1633 XSetLineAttributes(dpy, monitors[i].dc.gc, 1, LineSolid, CapButt, JoinMiter);
1634 if(!monitors[i].dc.font.set)
1635 XSetFont(dpy, monitors[i].dc.gc, monitors[i].dc.font.xfont->fid);
1640 spawn(const char *arg) {
1641 static char *shell = NULL;
1643 if(!shell && !(shell = getenv("SHELL")))
1647 /* The double-fork construct avoids zombie processes and keeps the code
1648 * clean from stupid signal handlers. */
1652 close(ConnectionNumber(dpy));
1654 execl(shell, shell, "-c", arg, (char *)NULL);
1655 fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
1664 tag(const char *arg) {
1669 for(i = 0; i < LENGTH(tags); i++)
1670 sel->tags[i] = (NULL == arg);
1671 sel->tags[idxoftag(arg)] = True;
1676 textnw(Monitor *m, const char *text, unsigned int len) {
1679 if(m->dc.font.set) {
1680 XmbTextExtents(m->dc.font.set, text, len, NULL, &r);
1683 return XTextWidth(m->dc.font.xfont, text, len);
1687 textw(Monitor *m, const char *text) {
1688 return textnw(m, text, strlen(text)) + m->dc.font.height;
1693 unsigned int i, n, nx, ny, nw, nh, mw, th;
1697 domwfact = dozoom = True;
1699 nw = 0; /* gcc stupidity requires this */
1701 for (s = 0; s < mcount; s++) {
1702 Monitor *m = &monitors[s];
1704 for(n = 0, c = nexttiled(clients, m); c; c = nexttiled(c->next, m))
1707 for(i = 0, c = mc = nexttiled(clients, m); c; c = nexttiled(c->next, m)) {
1709 mw = (n == 1) ? m->waw : m->mwfact * m->waw;
1710 th = (n > 1) ? m->wah / (n - 1) : 0;
1711 if(n > 1 && th < bh)
1713 if(i == 0) { /* master */
1716 nw = mw - 2 * c->border;
1717 nh = m->wah - 2 * c->border;
1719 else { /* tile window */
1722 nx += mc->w + 2 * mc->border;
1723 nw = m->waw - mw - 2 * c->border;
1725 if(i + 1 == n) /* remainder */
1726 nh = (m->way + m->wah) - ny - 2 * c->border;
1728 nh = th - 2 * c->border;
1730 resize(c, nx, ny, nw, nh, RESIZEHINTS);
1731 if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw)))
1732 /* client doesn't accept size constraints */
1733 resize(c, nx, ny, nw, nh, False);
1734 if(n > 1 && th != m->wah)
1735 ny = c->y + c->h + 2 * c->border;
1742 togglebar(const char *arg) {
1744 bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
1747 updatebarpos(&monitors[monitorat(-1,-1)]);
1752 togglefloating(const char *arg) {
1755 sel->isfloating = !sel->isfloating;
1757 resize(sel, sel->x, sel->y, sel->w, sel->h, True);
1762 toggletag(const char *arg) {
1768 sel->tags[i] = !sel->tags[i];
1769 for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
1770 if(j == LENGTH(tags))
1771 sel->tags[i] = True; /* at least one tag must be enabled */
1776 toggleview(const char *arg) {
1779 Monitor *m = &monitors[monitorat(-1, -1)];
1782 m->seltags[i] = !m->seltags[i];
1783 for(j = 0; j < LENGTH(tags) && !m->seltags[j]; j++);
1784 if(j == LENGTH(tags))
1785 m->seltags[i] = True; /* at least one tag must be viewed */
1793 XMoveWindow(dpy, c->win, c->x, c->y);
1794 c->isbanned = False;
1798 unmanage(Client *c) {
1801 wc.border_width = c->oldborder;
1802 /* The server grab construct avoids race conditions. */
1804 XSetErrorHandler(xerrordummy);
1805 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1810 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1811 setclientstate(c, WithdrawnState);
1815 XSetErrorHandler(xerror);
1821 unmapnotify(XEvent *e) {
1823 XUnmapEvent *ev = &e->xunmap;
1825 if((c = getclient(ev->window)))
1830 updatebarpos(Monitor *s) {
1841 XMoveWindow(dpy, s->barwin, s->sx, s->sy);
1845 XMoveWindow(dpy, s->barwin, s->sx, s->sy + s->wah);
1848 XMoveWindow(dpy, s->barwin, s->sx, s->sy - bh);
1852 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1856 updatesizehints(Client *c) {
1860 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
1862 c->flags = size.flags;
1863 if(c->flags & PBaseSize) {
1864 c->basew = size.base_width;
1865 c->baseh = size.base_height;
1867 else if(c->flags & PMinSize) {
1868 c->basew = size.min_width;
1869 c->baseh = size.min_height;
1872 c->basew = c->baseh = 0;
1873 if(c->flags & PResizeInc) {
1874 c->incw = size.width_inc;
1875 c->inch = size.height_inc;
1878 c->incw = c->inch = 0;
1879 if(c->flags & PMaxSize) {
1880 c->maxw = size.max_width;
1881 c->maxh = size.max_height;
1884 c->maxw = c->maxh = 0;
1885 if(c->flags & PMinSize) {
1886 c->minw = size.min_width;
1887 c->minh = size.min_height;
1889 else if(c->flags & PBaseSize) {
1890 c->minw = size.base_width;
1891 c->minh = size.base_height;
1894 c->minw = c->minh = 0;
1895 if(c->flags & PAspect) {
1896 c->minax = size.min_aspect.x;
1897 c->maxax = size.max_aspect.x;
1898 c->minay = size.min_aspect.y;
1899 c->maxay = size.max_aspect.y;
1902 c->minax = c->maxax = c->minay = c->maxay = 0;
1903 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1904 && c->maxw == c->minw && c->maxh == c->minh);
1908 updatetitle(Client *c) {
1909 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1910 gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
1913 /* There's no way to check accesses to destroyed windows, thus those cases are
1914 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
1915 * default error handler, which may call exit. */
1917 xerror(Display *dpy, XErrorEvent *ee) {
1918 if(ee->error_code == BadWindow
1919 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
1920 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
1921 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
1922 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
1923 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
1924 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
1925 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
1927 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
1928 ee->request_code, ee->error_code);
1929 return xerrorxlib(dpy, ee); /* may call exit */
1933 xerrordummy(Display *dsply, XErrorEvent *ee) {
1937 /* Startup Error handler to check if another window manager
1938 * is already running. */
1940 xerrorstart(Display *dsply, XErrorEvent *ee) {
1946 view(const char *arg) {
1949 Monitor *m = &monitors[monitorat(-1, -1)];
1951 memcpy(m->prevtags, seltags, sizeof seltags);
1952 for(i = 0; i < LENGTH(tags); i++)
1953 m->seltags[i] = (NULL == arg);
1954 m->seltags[idxoftag(arg)] = True;
1959 viewprevtag(const char *arg) {
1960 static Bool tmp[LENGTH(tags)];
1962 Monitor *m = &monitors[monitorat(-1, -1)];
1964 memcpy(tmp, m->seltags, sizeof seltags);
1965 memcpy(m->seltags, m->prevtags, sizeof seltags);
1966 memcpy(m->prevtags, tmp, sizeof seltags);
1971 zoom(const char *arg) {
1974 if(!sel || !dozoom || sel->isfloating)
1976 if((c = sel) == nexttiled(clients, &monitors[c->monitor]))
1977 if(!(c = nexttiled(c->next, &monitors[c->monitor])))
1986 monitorat(int x, int y) {
1989 if(!XineramaIsActive(dpy))
1992 if (x < 0 || y < 0) {
1995 XQueryPointer(dpy, root, &win, &win, &x, &y, &i, &i, &mask);
1998 for(i = 0; i < mcount; i++)
1999 if((x < 0 || (x >= monitors[i].sx && x < monitors[i].sx + monitors[i].sw))
2000 && (y < 0 || (y >= monitors[i].sy && y < monitors[i].sy + monitors[i].sh)))
2008 movetomonitor(const char *arg) {
2010 sel->monitor = arg ? atoi(arg) : (sel->monitor+1) % mcount;
2012 memcpy(sel->tags, monitors[sel->monitor].seltags, sizeof seltags);
2013 resize(sel, monitors[sel->monitor].wax, monitors[sel->monitor].way, sel->w, sel->h, True);
2019 selectmonitor(const char *arg) {
2020 Monitor *m = &monitors[arg ? atoi(arg) : (monitorat(-1, -1)+1) % mcount];
2022 XWarpPointer(dpy, None, root, 0, 0, 0, 0, m->wax+m->waw/2, m->way+m->wah/2);
2028 main(int argc, char *argv[]) {
2029 if(argc == 2 && !strcmp("-v", argv[1]))
2030 eprint("dwm-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, "
2031 "Jukka Salmi, Premysl Hruby, Szabolcs Nagy\n");
2033 eprint("usage: dwm [-v]\n");
2035 setlocale(LC_CTYPE, "");
2036 if(!(dpy = XOpenDisplay(0)))
2037 eprint("dwm: cannot open display\n");
2038 screen = DefaultScreen(dpy);
2039 root = RootWindow(dpy, screen);