mu - Soul of a tiny new machine. More thorough tests → More comprehensible and rewrite-friendly software → More resilient society.

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/* See LICENSE file for copyright and license details. * * dynamic window manager is designed like any other X client as well. It is * driven through handling X events. In contrast to other X clients, a window * manager selects for SubstructureRedirectMask on the root window, to receive * events about window (dis-)appearance. Only one X connection at a time is * allowed to select for this event mask. * * Calls to fetch an X event from the event queue are blocking. Due reading * status text from standard input, a select()-driven main loop has been * implemented which selects for reads on the X connection and STDIN_FILENO to * handle all data smoothly. The event handlers of dwm are organized in an * array which is accessed whenever a new event has been fetched. This allows * event dispatching in O(1) time. * * Each child of the root window is called a client, except windows which have * set the override_redirect flag. Clients are organized in a global * doubly-linked client list, the focus history is remembered through a global * stack list. Each client contains an array of Bools of the same size as the * global tags array to indicate the tags of a client. * * Keys and tagging rules are organized as arrays and defined in config.h. * * To understand everything else, start reading main(). */ #include <errno.h> #include <locale.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/select.h> #include <sys/types.h> #include <sys/wait.h> #include <regex.h> #include <X11/cursorfont.h> #include <X11/keysym.h> #include <X11/Xatom.h> #include <X11/Xlib.h> #include <X11/Xproto.h> #include <X11/Xutil.h> //#ifdef XINERAMA #include <X11/extensions/Xinerama.h> //#endif /* macros */ #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask) #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) #define LENGTH(x) (sizeof x / sizeof x[0]) #define MAXTAGLEN 16 #define MOUSEMASK (BUTTONMASK | PointerMotionMask) /* enums */ enum { BarTop, BarBot, BarOff }; /* bar position */ enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ enum { ColBorder, ColFG, ColBG, ColLast }; /* color */ enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */ enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */ /* typedefs */ typedef struct Client Client; struct Client { char name[256]; int x, y, w, h; int basew, baseh, incw, inch, maxw, maxh, minw, minh; int minax, maxax, minay, maxay; long flags; unsigned int border, oldborder; Bool isbanned, isfixed, isfloating; Bool *tags; Client *next; Client *prev; Client *snext; Window win; int monitor; }; typedef struct { int x, y, w, h; unsigned long norm[ColLast]; unsigned long sel[ColLast]; Drawable drawable; GC gc; struct { int ascent; int descent; int height; XFontSet set; XFontStruct *xfont; } font; } DC; /* draw context */ typedef struct { unsigned long mod; KeySym keysym; void (*func)(const char *arg); const char *arg; } Key; typedef struct { const char *symbol; void (*arrange)(void); } Layout; typedef struct { const char *prop; const char *tags; Bool isfloating; int monitor; } Rule; typedef struct { regex_t *propregex; regex_t *tagregex; } Regs; typedef struct { int screen; Window root; Window barwin; int sx, sy, sw, sh, wax, way, wah, waw; DC dc; Bool *seltags; Bool *prevtags; Layout *layout; double mwfact; } Monitor; /* function declarations */ void applyrules(Client *c); void arrange(void); void attach(Client *c); void attachstack(Client *c); void ban(Client *c); void buttonpress(XEvent *e); void checkotherwm(void); void cleanup(void); void compileregs(void); void configure(Client *c); void configurenotify(XEvent *e); void configurerequest(XEvent *e); void destroynotify(XEvent *e); void detach(Client *c); void detachstack(Client *c); void drawbar(void); void drawsquare(Monitor *, Bool filled, Bool empty, unsigned long = XInternAtom(dpy, "_NET_WM_NAME", False); XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32, PropModeReplace, (unsigned char *) net_atom, NetLast); /* init cursors */ cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); update_keys(); /* style */ dc.bg = initcolor(BGCOLOR); dc.fg = initcolor(FGCOLOR); dc.border = initcolor(BORDERCOLOR); initfont(FONT); th = dc.font.height + 4; dc.drawable = XCreatePixmap(dpy, root, sw, th, DefaultDepth(dpy, screen)); dc.gc = XCreateGC(dpy, root, 0, 0); wa.event_mask = SubstructureRedirectMask | EnterWindowMask \ | LeaveWindowMask; wa.cursor = cursor[CurNormal]; XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); scan_wins(); while(running) { XNextEvent(dpy, &ev); if(handler[ev.type]) (handler[ev.type])(&ev); /* call handler */ } cleanup(); XCloseDisplay(dpy); return 0; } >*e); void maprequest(XEvent *e); void movemouse(Client *c); Client *nexttiled(Client *c, Monitor *m); void propertynotify(XEvent *e); void quit(const char *arg); void reapply(const char *arg); void resize(Client *c, int x, int y, int w, int h, Bool sizehints); void resizemouse(Client *c); void restack(void); void run(void); void scan(void); void setclientstate(Client *c, long state); void setlayout(const char *arg); void setmwfact(const char *arg); void setup(void); void spawn(const char *arg); void tag(const char *arg); unsigned int textnw(Monitor*, const char *text, unsigned int len); unsigned int textw(Monitor*, const char *text); void tile(void); void togglebar(const char *arg); void togglefloating(const char *arg); void toggletag(const char *arg); void toggleview(const char *arg); void unban(Client *c); void unmanage(Client *c); void unmapnotify(XEvent *e); void updatebarpos(Monitor *s); void updatesizehints(Client *c); void updatetitle(Client *c); void view(const char *arg); void viewprevtag(const char *arg); /* views previous selected tags */ int xerror(Display *dpy, XErrorEvent *ee); int xerrordummy(Display *dsply, XErrorEvent *ee); int xerrorstart(Display *dsply, XErrorEvent *ee); void zoom(const char *arg); int monitorat(int, int); void movetomonitor(const char *arg); void selectmonitor(const char *arg); /* variables */ char stext[256]; int mcount = 1; //double mwfact; int (*xerrorxlib)(Display *, XErrorEvent *); unsigned int bh, bpos; unsigned int blw = 0; unsigned int numlockmask = 0; void (*handler[LASTEvent]) (XEvent *) = { [ButtonPress] = buttonpress, [ConfigureRequest] = configurerequest, [ConfigureNotify] = configurenotify, [DestroyNotify] = destroynotify, [EnterNotify] = enternotify, [Expose] = expose, [FocusIn] = focusin, [KeyPress] = keypress, [MappingNotify] = mappingnotify, [MapRequest] = maprequest, [PropertyNotify] = propertynotify, [UnmapNotify] = unmapnotify }; Atom wmatom[WMLast], netatom[NetLast]; Bool domwfact = True; Bool dozoom = True; Bool otherwm, readin; Bool running = True; Client *clients = NULL; Client *sel = NULL; Client *stack = NULL; Cursor cursor[CurLast]; Display *dpy; DC dc = {0}; Regs *regs = NULL; Monitor *monitors; int selmonitor = 0; /* configuration, allows nested code to access above variables */ #include "config.h" //Bool prevtags[LENGTH(tags)]; /* function implementations */ void applyrules(Client *c) { static char buf[512]; unsigned int i, j; regmatch_t tmp; Bool matched_tag = False; Bool matched_monitor = False; XClassHint ch = { 0 }; /* rule matching */ XGetClassHint(dpy, c->win, &ch); snprintf(buf, sizeof buf, "%s:%s:%s", ch.res_class ? ch.res_class : "", ch.res_name ? ch.res_name : "", c->name); for(i = 0; i < LENGTH(rules); i++) if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) { if (rules[i].monitor >= 0 && rules[i].monitor < mcount) { matched_monitor = True; c->monitor = rules[i].monitor; } c->isfloating = rules[i].isfloating; for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) { if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) { matched_tag = True; c->tags[j] = True; } } } if(ch.res_class) XFree(ch.res_class); if(ch.res_name) XFree(ch.res_name); if(!matched_tag) memcpy(c->tags, monitors[monitorat(-1, -1)].seltags, sizeof initags); if (!matched_monitor) c->monitor = monitorat(-1, -1); } void arrange(void) { Client *c; for(c = clients; c; c = c->next) if(isvisible(c, &monitors[c->monitor])) unban(c); else ban(c); monitors[selmonitor].layout->arrange(); focus(NULL); restack(); } void attach(Client *c) { if(clients) clients->prev = c; c->next = clients; clients = c; } void attachstack(Client *c) { c->snext = stack; stack = c; } void ban(Client *c) { if(c->isbanned) return; XMoveWindow(dpy, c->win, c->x + 3 * monitors[c->monitor].sw, c->y); c->isbanned = True; } void buttonpress(XEvent *e) { unsigned int i, x; Client *c; XButtonPressedEvent *ev = &e->xbutton; Monitor s = monitors[monitorat(-1, -1)]; if(ev->window == s.barwin) { x = 0; for(i = 0; i < LENGTH(tags); i++) { x += textw(&s, tags[i]); if(ev->x < x) { if(ev->button == Button1) { if(ev->state & MODKEY) tag(tags[i]); else view(tags[i]); } else if(ev->button == Button3) { if(ev->state & MODKEY) toggletag(tags[i]); else toggleview(tags[i]); } return; } } if((ev->x < x + blw) && ev->button == Button1) setlayout(NULL); } else if((c = getclient(ev->window))) { focus(c); if(CLEANMASK(ev->state) != MODKEY) return; if(ev->button == Button1) { if((s.layout->arrange == floating) || c->isfloating) restack(); else togglefloating(NULL); movemouse(c); } else if(ev->button == Button2) { if((floating != s.layout->arrange) && c->isfloating) togglefloating(NULL); else zoom(NULL); } else if(ev->button == Button3 && !c->isfixed) { if((floating == s.layout->arrange) || c->isfloating) restack(); else togglefloating(NULL); resizemouse(c); } } } void checkotherwm(void) { otherwm = False; XSetErrorHandler(xerrorstart); /* this causes an error if some other window manager is running */ XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask); XSync(dpy, False); if(otherwm) eprint("dwm: another window manager is already running\n"); XSync(dpy, False); XSetErrorHandler(NULL); xerrorxlib = XSetErrorHandler(xerror); XSync(dpy, False); } void cleanup(void) { unsigned int i; close(STDIN_FILENO); while(stack) { unban(stack); unmanage(stack); } for(i = 0; i < mcount; i++) { Monitor *m = &monitors[i]; if(m->dc.font.set) XFreeFontSet(dpy, m->dc.font.set); else XFreeFont(dpy, m->dc.font.xfont); XUngrabKey(dpy, AnyKey, AnyModifier, m->root); XFreePixmap(dpy, m->dc.drawable); XFreeGC(dpy, m->dc.gc); XDestroyWindow(dpy, m->barwin); XFreeCursor(dpy, cursor[CurNormal]); XFreeCursor(dpy, cursor[CurResize]); XFreeCursor(dpy, cursor[CurMove]); XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); XSync(dpy, False); } } void compileregs(void) { unsigned int i; regex_t *reg; if(regs) return; regs = emallocz(LENGTH(rules) * sizeof(Regs)); for(i = 0; i < LENGTH(rules); i++) { if(rules[i].prop) { reg = emallocz(sizeof(regex_t)); if(regcomp(reg, rules[i].prop, REG_EXTENDED)) free(reg); else regs[i].propregex = reg; } if(rules[i].tags) { reg = emallocz(sizeof(regex_t)); if(regcomp(reg, rules[i].tags, REG_EXTENDED)) free(reg); else regs[i].tagregex = reg; } } } void configure(Client *c) { XConfigureEvent ce; ce.type = ConfigureNotify; ce.display = dpy; ce.event = c->win; ce.window = c->win; ce.x = c->x; ce.y = c->y; ce.width = c->w; ce.height = c->h; ce.border_width = c->border; ce.above = None; ce.override_redirect = False; XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); } void configurenotify(XEvent *e) { XConfigureEvent *ev = &e->xconfigure; Monitor *m = &monitors[selmonitor]; if(ev->window == m->root && (ev->width != m->sw || ev->height != m->sh)) { m->sw = ev->width; m->sh = ev->height; XFreePixmap(dpy, dc.drawable); dc.drawable = XCreatePixmap(dpy, m->root, m->sw, bh, DefaultDepth(dpy, m->screen)); XResizeWindow(dpy, m->barwin, m->sw, bh); updatebarpos(m); arrange(); } } void configurerequest(XEvent *e) { Client *c; XConfigureRequestEvent *ev = &e->xconfigurerequest; XWindowChanges wc; if((c = getclient(ev->window))) { Monitor *m = &monitors[c->monitor]; if(ev->value_mask & CWBorderWidth) c->border = ev->border_width; if(c->isfixed || c->isfloating || (floating == m->layout->arrange)) { if(ev->value_mask & CWX) c->x = m->sx+ev->x; if(ev->value_mask & CWY) c->y = m->sy+ev->y; if(ev->value_mask & CWWidth) c->w = ev->width; if(ev->value_mask & CWHeight) c->h = ev->height; if((c->x - m->sx + c->w) > m->sw && c->isfloating) c->x = m->sx + (m->sw / 2 - c->w / 2); /* center in x direction */ if((c->y - m->sy + c->h) > m->sh && c->isfloating) c->y = m->sy + (m->sh / 2 - c->h / 2); /* center in y direction */ if((ev->value_mask & (CWX | CWY)) && !(ev->value_mask & (CWWidth | CWHeight))) configure(c); if(isvisible(c, &monitors[monitorat(-1,-1)])) XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); } else configure(c); } else { wc.x = ev->x; wc.y = ev->y; wc.width = ev->width; wc.height = ev->height; wc.border_width = ev->border_width; wc.sibling = ev->above; wc.stack_mode = ev->detail; XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); } XSync(dpy, False); } void destroynotify(XEvent *e) { Client *c; XDestroyWindowEvent *ev = &e->xdestroywindow; if((c = getclient(ev->window))) unmanage(c); } void detach(Client *c) { if(c->prev) c->prev->next = c->next; if(c->next) c->next->prev = c->prev; if(c == clients) clients = c->next; c->next = c->prev = NULL; } void detachstack(Client *c) { Client **tc; for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext); *tc = c->snext; } void drawbar(void) { int i, x, s; for(s = 0; s < mcount; ++s) { Monitor *m = &monitors[s]; m->dc.x = 0; for(i = 0; i < LENGTH(tags); i++) { m->dc.w = textw(m, tags[i]); if(m->seltags[i]) { drawtext(m, tags[i], m->dc.sel); drawsquare(m, sel && sel->tags[i] && sel->monitor == selmonitor, isoccupied(m, i), m->dc.sel); } else { drawtext(m, tags[i], m->dc.norm); drawsquare(m, sel && sel->tags[i] && sel->monitor == selmonitor, isoccupied(m, i), m->dc.norm); } m->dc.x += m->dc.w; } m->dc.w = blw; drawtext(m, m->layout->symbol, m->dc.norm); x = m->dc.x + m->dc.w; m->dc.w = textw(m, stext); m->dc.x = m->sw - m->dc.w; if(m->dc.x < x) { m->dc.x = x; m->dc.w = m->sw - x; } drawtext(m, stext, m->dc.norm); if((m->dc.w = m->dc.x - x) > bh) { m->dc.x = x; if(sel && sel->monitor == selmonitor) { drawtext(m, sel->name, m->dc.sel); drawsquare(m, False, sel->isfloating, m->dc.sel); } else drawtext(m, NULL, m->dc.norm); } XCopyArea(dpy, m->dc.drawable, m->barwin, m->dc.gc, 0, 0, m->sw, bh, 0, 0); XSync(dpy, False); } } void drawsquare(Monitor *m, Bool filled, Bool empty, unsigned long col[ColLast]) { int x; XGCValues gcv; XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h }; gcv.foreground = col[ColFG]; XChangeGC(dpy, m->dc.gc, GCForeground, &gcv); x = (m->dc.font.ascent + m->dc.font.descent + 2) / 4; r.x = m->dc.x + 1; r.y = m->dc.y + 1; if(filled) { r.width = r.height = x + 1; XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1); } else if(empty) { r.width = r.height = x; XDrawRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1); } } void drawtext(Monitor *m, const char *text, unsigned long col[ColLast]) { int x, y, w, h; static char buf[256]; unsigned int len, olen; XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h }; XSetForeground(dpy, m->dc.gc, col[ColBG]); XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1); if(!text) return; w = 0; olen = len = strlen(text); if(len >= sizeof buf) len = sizeof buf - 1; memcpy(buf, text, len); buf[len] = 0; h = m->dc.font.ascent + m->dc.font.descent; y = m->dc.y + (m->dc.h / 2) - (h / 2) + m->dc.font.ascent; x = m->dc.x + (h / 2); /* shorten text if necessary */ while(len && (w = textnw(m, buf, len)) > m->dc.w - h) buf[--len] = 0; if(len < olen) { if(len > 1) buf[len - 1] = '.'; if(len > 2) buf[len - 2] = '.'; if(len > 3) buf[len - 3] = '.'; } if(w > m->dc.w) return; /* too long */ XSetForeground(dpy, m->dc.gc, col[ColFG]); if(m->dc.font.set) XmbDrawString(dpy, m->dc.drawable, m->dc.font.set, m->dc.gc, x, y, buf, len); else XDrawString(dpy, m->dc.drawable, m->dc.gc, x, y, buf, len); } void * emallocz(unsigned int size) { void *res = calloc(1, size); if(!res) eprint("fatal: could not malloc() %u bytes\n", size); return res; } void enternotify(XEvent *e) { unsigned int i; Client *c; XCrossingEvent *ev = &e->xcrossing; if(ev->mode != NotifyNormal || ev->detail == NotifyInferior) return; if((c = getclient(ev->window))) focus(c); else { for(i = 0; i < mcount; i++) if(ev->window == monitors[i].root) { selmonitor = i; focus(NULL); break; } } } void eprint(const char *errstr, ...) { va_list ap; va_start(ap, errstr); vfprintf(stderr, errstr, ap); va_end(ap); exit(EXIT_FAILURE); } void expose(XEvent *e) { XExposeEvent *ev = &e->xexpose; if(ev->count == 0) { if(ev->window == monitors[selmonitor].barwin) drawbar(); } } void floating(void) { /* default floating layout */ Client *c; domwfact = dozoom = False; for(c = clients; c; c = c->next) if(isvisible(c, &monitors[selmonitor])) resize(c, c->x, c->y, c->w, c->h, True); } void focus(Client *c) { Monitor *m = &monitors[c ? c->monitor : selmonitor]; if(!c || (c && !isvisible(c, m))) for(c = stack; c && !isvisible(c, m); c = c->snext); if(sel && sel != c) { grabbuttons(sel, False); XSetWindowBorder(dpy, sel->win, monitors[sel->monitor].dc.norm[ColBorder]); } if(c) { detachstack(c); attachstack(c); grabbuttons(c, True); } sel = c; drawbar(); if(c) { XSetWindowBorder(dpy, c->win, m->dc.sel[ColBorder]); XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); selmonitor = c->monitor; } else { XSetInputFocus(dpy, m->root, RevertToPointerRoot, CurrentTime); } } void focusin(XEvent *e) { /* there are some broken focus acquiring clients */ XFocusChangeEvent *ev = &e->xfocus; if(sel && ev->window != sel->win) XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime); } void focusnext(const char *arg) { Client *c; Monitor *m = &monitors[selmonitor]; if(!sel) return; for(c = sel->next; c && !isvisible(c, m); c = c->next); if(!c) for(c = clients; c && !isvisible(c, m); c = c->next); if(c) { focus(c); restack(); } } void focusprev(const char *arg) { Client *c; Monitor *m = &monitors[selmonitor]; if(!sel) return; for(c = sel->prev; c && !isvisible(c, m); c = c->prev); if(!c) { for(c = clients; c && c->next; c = c->next); for(; c && !isvisible(c, m); c = c->prev); } if(c) { focus(c); restack(); } } Client * getclient(Window w) { Client *c; for(c = clients; c && c->win != w; c = c->next); return c; } unsigned long getcolor(const char *colstr, int screen) { Colormap cmap = DefaultColormap(dpy, screen); XColor color; if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) eprint("error, cannot allocate color '%s'\n", colstr); return color.pixel; } long getstate(Window w) { int format, status; long result = -1; unsigned char *p = NULL; unsigned long n, extra; Atom real; status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], &real, &format, &n, &extra, (unsigned char **)&p); if(status != Success) return -1; if(n != 0) result = *p; XFree(p); return result; } Bool gettextprop(Window w, Atom atom, char *text, unsigned int size) { char **list = NULL; int n; XTextProperty name; if(!text || size == 0) return False; text[0] = '\0'; XGetTextProperty(dpy, w, &name, atom); if(!name.nitems) return False; if(name.encoding == XA_STRING) strncpy(text, (char *)name.value, size - 1); else { if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) { strncpy(text, *list, size - 1); XFreeStringList(list); } } text[size - 1] = '\0'; XFree(name.value); return True; } void grabbuttons(Client *c, Bool focused) { XUngrabButton(dpy, AnyButton, AnyModifier, c->win); if(focused) { XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); } else XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None); } void grabkeys(void) { unsigned int i, j; KeyCode code; XModifierKeymap *modmap; /* init modifier map */ modmap = XGetModifierMapping(dpy); for(i = 0; i < 8; i++) for(j = 0; j < modmap->max_keypermod; j++) { if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock)) numlockmask = (1 << i); } XFreeModifiermap(modmap); for(i = 0; i < mcount; i++) { Monitor *m = &monitors[i]; XUngrabKey(dpy, AnyKey, AnyModifier, m->root); for(j = 0; j < LENGTH(keys); j++) { code = XKeysymToKeycode(dpy, keys[j].keysym); XGrabKey(dpy, code, keys[j].mod, m->root, True, GrabModeAsync, GrabModeAsync); XGrabKey(dpy, code, keys[j].mod | LockMask, m->root, True, GrabModeAsync, GrabModeAsync); XGrabKey(dpy, code, keys[j].mod | numlockmask, m->root, True, GrabModeAsync, GrabModeAsync); XGrabKey(dpy, code, keys[j].mod | numlockmask | LockMask, m->root, True, GrabModeAsync, GrabModeAsync); } } } unsigned int idxoftag(const char *tag) { unsigned int i; for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++); return (i < LENGTH(tags)) ? i : 0; } void initfont(Monitor *m, const char *fontstr) { char *def, **missing; int i, n; missing = NULL; if(m->dc.font.set) XFreeFontSet(dpy, m->dc.font.set); m->dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); if(missing) { while(n--) fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]); XFreeStringList(missing); } if(m->dc.font.set) { XFontSetExtents *font_extents; XFontStruct **xfonts; char **font_names; m->dc.font.ascent = m->dc.font.descent = 0; font_extents = XExtentsOfFontSet(m->dc.font.set); n = XFontsOfFontSet(m->dc.font.set, &xfonts, &font_names); for(i = 0, m->dc.font.ascent = 0, m->dc.font.descent = 0; i < n; i++) { if(m->dc.font.ascent < (*xfonts)->ascent) m->dc.font.ascent = (*xfonts)->ascent; if(m->dc.font.descent < (*xfonts)->descent) m->dc.font.descent = (*xfonts)->descent; xfonts++; } } else { if(m->dc.font.xfont) XFreeFont(dpy, m->dc.font.xfont); m->dc.font.xfont = NULL; if(!(m->dc.font.xfont = XLoadQueryFont(dpy, fontstr)) && !(m->dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) eprint("error, cannot load font: '%s'\n", fontstr); m->dc.font.ascent = m->dc.font.xfont->ascent; m->dc.font.descent = m->dc.font.xfont->descent; } m->dc.font.height = m->dc.font.ascent + m->dc.font.descent; } Bool isoccupied(Monitor *m, unsigned int t) { Client *c; for(c = clients; c; c = c->next) if(c->tags[t] && c->monitor == selmonitor) return True; return False; } Bool isprotodel(Client *c) { int i, n; Atom *protocols; Bool ret = False; if(XGetWMProtocols(dpy, c->win, &protocols, &n)) { for(i = 0; !ret && i < n; i++) if(protocols[i] == wmatom[WMDelete]) ret = True; XFree(protocols); } return ret; } Bool isvisible(Client *c, Monitor *m) { unsigned int i; for(i = 0; i < LENGTH(tags); i++) if(c->tags[i] && monitors[c->monitor].seltags[i] && c->monitor == selmonitor) return True; return False; } void keypress(XEvent *e) { unsigned int i; KeySym keysym; XKeyEvent *ev; ev = &e->xkey; keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); for(i = 0; i < LENGTH(keys); i++) if(keysym == keys[i].keysym && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)) { if(keys[i].func) keys[i].func(keys[i].arg); } } void killclient(const char *arg) { XEvent ev; if(!sel) return; if(isprotodel(sel)) { ev.type = ClientMessage; ev.xclient.window = sel->win; ev.xclient.message_type = wmatom[WMProtocols]; ev.xclient.format = 32; ev.xclient.data.l[0] = wmatom[WMDelete]; ev.xclient.data.l[1] = CurrentTime; XSendEvent(dpy, sel->win, False, NoEventMask, &ev); } else XKillClient(dpy, sel->win); } void manage(Window w, XWindowAttributes *wa) { Client *c, *t = NULL; Monitor *m = &monitors[selmonitor]; Status rettrans; Window trans; XWindowChanges wc; c = emallocz(sizeof(Client)); c->tags = emallocz(sizeof initags); c->win = w; applyrules(c); c->x = wa->x + m->sx; c->y = wa->y + m->sy; c->w = wa->width; c->h = wa->height; c->oldborder = wa->border_width; if (monitorat(c->x, c->y) != c->monitor) { c->x = m->sx; c->y = m->sy; } if(c->w == m->sw && c->h == m->sh) { c->x = m->sx; c->y = m->sy; c->border = wa->border_width; } else { if(c->x + c->w + 2 * c->border > m->wax + m->waw) c->x = m->wax + m->waw - c->w - 2 * c->border; if(c->y + c->h + 2 * c->border > m->way + m->wah) c->y = m->way + m->wah - c->h - 2 * c->border; if(c->x < m->wax) c->x = m->wax; if(c->y < m->way) c->y = m->way; c->border = BORDERPX; } wc.border_width = c->border; XConfigureWindow(dpy, w, CWBorderWidth, &wc); XSetWindowBorder(dpy, w, m->dc.norm[ColBorder]); configure(c); /* propagates border_width, if size doesn't change */ updatesizehints(c); XSelectInput(dpy, w, EnterWindowMask | FocusChangeMask | PropertyChangeMask | StructureNotifyMask); grabbuttons(c, False); updatetitle(c); if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success)) for(t = clients; t && t->win != trans; t = t->next); if(t) memcpy(c->tags, t->tags, sizeof initags); if(!c->isfloating) c->isfloating = (rettrans == Success) || c->isfixed; attach(c); attachstack(c); XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */ ban(c); XMapWindow(dpy, c->win); setclientstate(c, NormalState); arrange(); } void mappingnotify(XEvent *e) { XMappingEvent *ev = &e->xmapping; XRefreshKeyboardMapping(ev); if(ev->request == MappingKeyboard) grabkeys(); } void maprequest(XEvent *e) { static XWindowAttributes wa; XMapRequestEvent *ev = &e->xmaprequest; if(!XGetWindowAttributes(dpy, ev->window, &wa)) return; if(wa.override_redirect) return; if(!getclient(ev->window)) manage(ev->window, &wa); } void movemouse(Client *c) { int x1, y1, ocx, ocy, di, nx, ny; unsigned int dui; Window dummy; XEvent ev; ocx = nx = c->x; ocy = ny = c->y; if(XGrabPointer(dpy, monitors[selmonitor].root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None, cursor[CurMove], CurrentTime) != GrabSuccess) return; XQueryPointer(dpy, monitors[selmonitor].root, &dummy, &dummy, &x1, &y1, &di, &di, &dui); for(;;) { XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev); switch (ev.type) { case ButtonRelease: XUngrabPointer(dpy, CurrentTime); return; case ConfigureRequest: case Expose: case MapRequest: handler[ev.type](&ev); break; case MotionNotify: XSync(dpy, False); nx = ocx + (ev.xmotion.x - x1); ny = ocy + (ev.xmotion.y - y1); Monitor *m = &monitors[monitorat(nx, ny)]; if(abs(m->wax - nx) < SNAP) nx = m->wax; else if(abs((m->wax + m->waw) - (nx + c->w + 2 * c->border)) < SNAP) nx = m->wax + m->waw - c->w - 2 * c->border; if(abs(m->way - ny) < SNAP) ny = m->way; else if(abs((m->way + m->wah) - (ny + c->h + 2 * c->border)) < SNAP) ny = m->way + m->wah - c->h - 2 * c->border; resize(c, nx, ny, c->w, c->h, False); memcpy(c->tags, monitors[monitorat(nx, ny)].seltags, sizeof initags); break; } } } Client * nexttiled(Client *c, Monitor *m) { for(; c && (c->isfloating || !isvisible(c, m)); c = c->next); return c; } void propertynotify(XEvent *e) { Client *c; Window trans; XPropertyEvent *ev = &e->xproperty; if(ev->state == PropertyDelete) return; /* ignore */ if((c = getclient(ev->window))) { switch (ev->atom) { default: break; case XA_WM_TRANSIENT_FOR: XGetTransientForHint(dpy, c->win, &trans); if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL))) arrange(); break; case XA_WM_NORMAL_HINTS: updatesizehints(c); break; } if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { updatetitle(c); if(c == sel) drawbar(); } } } void quit(const char *arg) { readin = running = False; } void reapply(const char *arg) { static Bool zerotags[LENGTH(tags)] = { 0 }; Client *c; for(c = clients; c; c = c->next) { memcpy(c->tags, zerotags, sizeof zerotags); applyrules(c); } arrange(); } void resize(Client *c, int x, int y, int w, int h, Bool sizehints) { XWindowChanges wc; Monitor scr = monitors[monitorat(x, y)]; c->monitor = monitorat(x, y); if(sizehints) { /* set minimum possible */ if (w < 1) w = 1; if (h < 1) h = 1; /* temporarily remove base dimensions */ w -= c->basew; h -= c->baseh; /* adjust for aspect limits */ if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) { if (w * c->maxay > h * c->maxax) w = h * c->maxax / c->maxay; else if (w * c->minay < h * c->minax) h = w * c->minay / c->minax; } /* adjust for increment value */ if(c->incw) w -= w % c->incw; if(c->inch) h -= h % c->inch; /* restore base dimensions */ w += c->basew; h += c->baseh; if(c->minw > 0 && w < c->minw) w = c->minw; if(c->minh > 0 && h < c->minh) h = c->minh; if(c->maxw > 0 && w > c->maxw) w = c->maxw; if(c->maxh > 0 && h > c->maxh) h = c->maxh; } if(w <= 0 || h <= 0) return; /* TODO: offscreen appearance fixes */ /* if(x > scr.sw) x = scr.sw - w - 2 * c->border; if(y > scr.sh) y = scr.sh - h - 2 * c->border; if(x + w + 2 * c->border < scr.sx) x = scr.sx; if(y + h + 2 * c->border < scr.sy) y = scr.sy; */ if(c->x != x || c->y != y || c->w != w || c->h != h) { c->x = wc.x = x; c->y = wc.y = y; c->w = wc.width = w; c->h = wc.height = h; wc.border_width = c->border; XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc); configure(c); XSync(dpy, False); } } void resizemouse(Client *c) { int ocx, ocy; int nw, nh; XEvent ev; ocx = c->x; ocy = c->y; if(XGrabPointer(dpy, monitors[selmonitor].root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None, cursor[CurResize], CurrentTime) != GrabSuccess) return; XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1); for(;;) { XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev); switch(ev.type) { case ButtonRelease: XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1); XUngrabPointer(dpy, CurrentTime); while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); return; case ConfigureRequest: case Expose: case MapRequest: handler[ev.type](&ev); break; case MotionNotify: XSync(dpy, False); if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0) nw = 1; if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0) nh = 1; resize(c, c->x, c->y, nw, nh, True); break; } } } void restack(void) { Client *c; XEvent ev; XWindowChanges wc; int s; drawbar(); if(!sel) return; if(sel->isfloating || (monitors[selmonitor].layout->arrange == floating)) XRaiseWindow(dpy, sel->win); if(monitors[selmonitor].layout->arrange != floating) { wc.stack_mode = Below; wc.sibling = monitors[selmonitor].barwin; if(!sel->isfloating) { XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc); wc.sibling = sel->win; } for(s = 0; s < mcount; s++) { for(c = nexttiled(clients, &monitors[s]); c; c = nexttiled(c->next, &monitors[s])) { if(c == sel) continue; XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc); wc.sibling = c->win; } } } XSync(dpy, False); while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); } void run(void) { char *p; char buf[sizeof stext]; fd_set rd; int r, xfd; unsigned int len, offset; XEvent ev; /* main event loop, also reads status text from stdin */ XSync(dpy, False); xfd = ConnectionNumber(dpy); readin = True; offset = 0; len = sizeof stext - 1; buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */ while(running) { FD_ZERO(&rd); if(readin) FD_SET(STDIN_FILENO, &rd); FD_SET(xfd, &rd); if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) { if(errno == EINTR) continue; eprint("select failed\n"); } if(FD_ISSET(STDIN_FILENO, &rd)) { switch((r = read(STDIN_FILENO, buf + offset, len - offset))) { case -1: strncpy(stext, strerror(errno), len); readin = False; break; case 0: strncpy(stext, "EOF", 4); readin = False; break; default: for(p = buf + offset; r > 0; p++, r--, offset++) if(*p == '\n' || *p == '\0') { *p = '\0'; strncpy(stext, buf, len); p += r - 1; /* p is buf + offset + r - 1 */ for(r = 0; *(p - r) && *(p - r) != '\n'; r++); offset = r; if(r) memmove(buf, p - r + 1, r); break; } break; } drawbar(); } while(XPending(dpy)) { XNextEvent(dpy, &ev); if(handler[ev.type]) (handler[ev.type])(&ev); /* call handler */ } } } void scan(void) { unsigned int i, j, num; Window *wins, d1, d2; XWindowAttributes wa; for(i = 0; i < mcount; i++) { Monitor *m = &monitors[i]; wins = NULL; if(XQueryTree(dpy, m->root, &d1, &d2, &wins, &num)) { for(j = 0; j < num; j++) { if(!XGetWindowAttributes(dpy, wins[j], &wa) || wa.override_redirect || XGetTransientForHint(dpy, wins[j], &d1)) continue; if(wa.map_state == IsViewable || getstate(wins[j]) == IconicState) manage(wins[j], &wa); } for(j = 0; j < num; j++) { /* now the transients */ if(!XGetWindowAttributes(dpy, wins[j], &wa)) continue; if(XGetTransientForHint(dpy, wins[j], &d1) && (wa.map_state == IsViewable || getstate(wins[j]) == IconicState)) manage(wins[j], &wa); } } if(wins) XFree(wins); } } void setclientstate(Client *c, long state) { long data[] = {state, None}; XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, PropModeReplace, (unsigned char *)data, 2); } void setlayout(const char *arg) { unsigned int i; Monitor *m = &monitors[monitorat(-1, -1)]; if(!arg) { m->layout++; if(m->layout == &layouts[LENGTH(layouts)]) m->layout = &layouts[0]; } else { for(i = 0; i < LENGTH(layouts); i++) if(!strcmp(arg, layouts[i].symbol)) break; if(i == LENGTH(layouts)) return; m->layout = &layouts[i]; } if(sel) arrange(); else drawbar(); } void setmwfact(const char *arg) { double delta; Monitor *m = &monitors[monitorat(-1, -1)]; if(!domwfact) return; /* arg handling, manipulate mwfact */ if(arg == NULL) m->mwfact = MWFACT; else if(sscanf(arg, "%lf", &delta) == 1) { if(arg[0] == '+' || arg[0] == '-') m->mwfact += delta; else m->mwfact = delta; if(m->mwfact < 0.1) m->mwfact = 0.1; else if(m->mwfact > 0.9) m->mwfact = 0.9; } arrange(); } void setup(void) { unsigned int i, j, k; Monitor *m; XSetWindowAttributes wa; XineramaScreenInfo *info = NULL; /* init atoms */ wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False); wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); /* init cursors */ wa.cursor = cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); // init screens/monitors first if (XineramaIsActive(dpy)) { info = XineramaQueryScreens(dpy, &mcount); } mcount = 1; monitors = emallocz(mcount * sizeof(Monitor)); for(i = 0; i < mcount; i++) { /* init geometry */ m = &monitors[i]; m->screen = i; m->root = RootWindow(dpy, i); if (mcount != 1) { // TODO: Xinerama m->sx = info[i].x_org; m->sy = info[i].y_org; m->sw = info[i].width; m->sh = info[i].height; } else { m->sx = 0; m->sy = 0; m->sw = DisplayWidth(dpy, m->screen); m->sh = DisplayHeight(dpy, m->screen); } m->seltags = emallocz(sizeof initags); m->prevtags = emallocz(sizeof initags); memcpy(m->seltags, initags, sizeof initags); memcpy(m->prevtags, initags, sizeof initags); /* init appearance */ m->dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR, i); m->dc.norm[ColBG] = getcolor(NORMBGCOLOR, i); m->dc.norm[ColFG] = getcolor(NORMFGCOLOR, i); m->dc.sel[ColBorder] = getcolor(SELBORDERCOLOR, i); m->dc.sel[ColBG] = getcolor(SELBGCOLOR, i); m->dc.sel[ColFG] = getcolor(SELFGCOLOR, i); initfont(m, FONT); m->dc.h = bh = m->dc.font.height + 2; /* init layouts */ m->mwfact = MWFACT; m->layout = &layouts[0]; for(blw = k = 0; k < LENGTH(layouts); k++) { j = textw(m, layouts[k].symbol); if(j > blw) blw = j; } // TODO: bpos per screen? bpos = BARPOS; wa.override_redirect = 1; wa.background_pixmap = ParentRelative; wa.event_mask = ButtonPressMask | ExposureMask; /* init bars */ m->barwin = XCreateWindow(dpy, m->root, m->sx, m->sy, m->sw, bh, 0, DefaultDepth(dpy, m->screen), CopyFromParent, DefaultVisual(dpy, m->screen), CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); XDefineCursor(dpy, m->barwin, cursor[CurNormal]); updatebarpos(m); XMapRaised(dpy, m->barwin); strcpy(stext, "dwm-"VERSION); m->dc.drawable = XCreatePixmap(dpy, m->root, m->sw, bh, DefaultDepth(dpy, m->screen)); m->dc.gc = XCreateGC(dpy, m->root, 0, 0); XSetLineAttributes(dpy, m->dc.gc, 1, LineSolid, CapButt, JoinMiter); if(!m->dc.font.set) XSetFont(dpy, m->dc.gc, m->dc.font.xfont->fid); /* EWMH support per monitor */ XChangeProperty(dpy, m->root, netatom[NetSupported], XA_ATOM, 32, PropModeReplace, (unsigned char *) netatom, NetLast); /* select for events */ wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | EnterWindowMask | LeaveWindowMask | StructureNotifyMask; XChangeWindowAttributes(dpy, m->root, CWEventMask | CWCursor, &wa); XSelectInput(dpy, m->root, wa.event_mask); } /* grab keys */ grabkeys(); /* init tags */ compileregs(); } void spawn(const char *arg) { static char *shell = NULL; if(!shell && !(shell = getenv("SHELL"))) shell = "/bin/sh"; if(!arg) return; /* The double-fork construct avoids zombie processes and keeps the code * clean from stupid signal handlers. */ if(fork() == 0) { if(fork() == 0) { if(dpy) close(ConnectionNumber(dpy)); setsid(); execl(shell, shell, "-c", arg, (char *)NULL); fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg); perror(" failed"); } exit(0); } wait(0); } void tag(const char *arg) { unsigned int i; if(!sel) return; for(i = 0; i < LENGTH(tags); i++) sel->tags[i] = (NULL == arg); sel->tags[idxoftag(arg)] = True; arrange(); } unsigned int textnw(Monitor *m, const char *text, unsigned int len) { XRectangle r; if(m->dc.font.set) { XmbTextExtents(m->dc.font.set, text, len, NULL, &r); return r.width; } return XTextWidth(m->dc.font.xfont, text, len); } unsigned int textw(Monitor *m, const char *text) { return textnw(m, text, strlen(text)) + m->dc.font.height; } void tile(void) { unsigned int i, n, nx, ny, nw, nh, mw, th; int s; Client *c, *mc; domwfact = dozoom = True; nw = 0; /* gcc stupidity requires this */ for (s = 0; s < mcount; s++) { Monitor *m = &monitors[s]; for(n = 0, c = nexttiled(clients, m); c; c = nexttiled(c->next, m)) n++; for(i = 0, c = mc = nexttiled(clients, m); c; c = nexttiled(c->next, m)) { /* window geoms */ mw = (n == 1) ? m->waw : m->mwfact * m->waw; th = (n > 1) ? m->wah / (n - 1) : 0; if(n > 1 && th < bh) th = m->wah; if(i == 0) { /* master */ nx = m->wax; ny = m->way; nw = mw - 2 * c->border; nh = m->wah - 2 * c->border; } else { /* tile window */ if(i == 1) { ny = m->way; nx += mc->w + 2 * mc->border; nw = m->waw - mw - 2 * c->border; } if(i + 1 == n) /* remainder */ nh = (m->way + m->wah) - ny - 2 * c->border; else nh = th - 2 * c->border; } resize(c, nx, ny, nw, nh, RESIZEHINTS); if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw))) /* client doesn't accept size constraints */ resize(c, nx, ny, nw, nh, False); if(n > 1 && th != m->wah) ny = c->y + c->h + 2 * c->border; i++; } } } void togglebar(const char *arg) { if(bpos == BarOff) bpos = (BARPOS == BarOff) ? BarTop : BARPOS; else bpos = BarOff; updatebarpos(&monitors[monitorat(-1,-1)]); arrange(); } void togglefloating(const char *arg) { if(!sel) return; sel->isfloating = !sel->isfloating; if(sel->isfloating) resize(sel, sel->x, sel->y, sel->w, sel->h, True); arrange(); } void toggletag(const char *arg) { unsigned int i, j; if(!sel) return; i = idxoftag(arg); sel->tags[i] = !sel->tags[i]; for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++); if(j == LENGTH(tags)) sel->tags[i] = True; /* at least one tag must be enabled */ arrange(); } void toggleview(const char *arg) { unsigned int i, j; Monitor *m = &monitors[monitorat(-1, -1)]; i = idxoftag(arg); m->seltags[i] = !m->seltags[i]; for(j = 0; j < LENGTH(tags) && !m->seltags[j]; j++); if(j == LENGTH(tags)) m->seltags[i] = True; /* at least one tag must be viewed */ arrange(); } void unban(Client *c) { if(!c->isbanned) return; XMoveWindow(dpy, c->win, c->x, c->y); c->isbanned = False; } void unmanage(Client *c) { XWindowChanges wc; wc.border_width = c->oldborder; /* The server grab construct avoids race conditions. */ XGrabServer(dpy); XSetErrorHandler(xerrordummy); XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ detach(c); detachstack(c); if(sel == c) focus(NULL); XUngrabButton(dpy, AnyButton, AnyModifier, c->win); setclientstate(c, WithdrawnState); free(c->tags); free(c); XSync(dpy, False); XSetErrorHandler(xerror); XUngrabServer(dpy); arrange(); } void unmapnotify(XEvent *e) { Client *c; XUnmapEvent *ev = &e->xunmap; if((c = getclient(ev->window))) unmanage(c); } void updatebarpos(Monitor *s) { XEvent ev; s->wax = s->sx; s->way = s->sy; s->wah = s->sh; s->waw = s->sw; switch(bpos) { default: s->wah -= bh; s->way += bh; XMoveWindow(dpy, s->barwin, s->sx, s->sy); break; case BarBot: s->wah -= bh; XMoveWindow(dpy, s->barwin, s->sx, s->sy + s->wah); break; case BarOff: XMoveWindow(dpy, s->barwin, s->sx, s->sy - bh); break; } XSync(dpy, False); while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); } void updatesizehints(Client *c) { long msize; XSizeHints size; if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags) size.flags = PSize; c->flags = size.flags; if(c->flags & PBaseSize) { c->basew = size.base_width; c->baseh = size.base_height; } else if(c->flags & PMinSize) { c->basew = size.min_width; c->baseh = size.min_height; } else c->basew = c->baseh = 0; if(c->flags & PResizeInc) { c->incw = size.width_inc; c->inch = size.height_inc; } else c->incw = c->inch = 0; if(c->flags & PMaxSize) { c->maxw = size.max_width; c->maxh = size.max_height; } else c->maxw = c->maxh = 0; if(c->flags & PMinSize) { c->minw = size.min_width; c->minh = size.min_height; } else if(c->flags & PBaseSize) { c->minw = size.base_width; c->minh = size.base_height; } else c->minw = c->minh = 0; if(c->flags & PAspect) { c->minax = size.min_aspect.x; c->maxax = size.max_aspect.x; c->minay = size.min_aspect.y; c->maxay = size.max_aspect.y; } else c->minax = c->maxax = c->minay = c->maxay = 0; c->isfixed = (c->maxw && c->minw && c->maxh && c->minh && c->maxw == c->minw && c->maxh == c->minh); } void updatetitle(Client *c) { if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name); } /* There's no way to check accesses to destroyed windows, thus those cases are * ignored (especially on UnmapNotify's). Other types of errors call Xlibs * default error handler, which may call exit. */ int xerror(Display *dpy, XErrorEvent *ee) { if(ee->error_code == BadWindow || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) return 0; fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", ee->request_code, ee->error_code); return xerrorxlib(dpy, ee); /* may call exit */ } int xerrordummy(Display *dsply, XErrorEvent *ee) { return 0; } /* Startup Error handler to check if another window manager * is already running. */ int xerrorstart(Display *dsply, XErrorEvent *ee) { otherwm = True; return -1; } void view(const char *arg) { unsigned int i; Monitor *m = &monitors[monitorat(-1, -1)]; memcpy(m->prevtags, m->seltags, sizeof initags); for(i = 0; i < LENGTH(tags); i++) m->seltags[i] = (NULL == arg); m->seltags[idxoftag(arg)] = True; arrange(); } void viewprevtag(const char *arg) { static Bool tmp[LENGTH(tags)]; Monitor *m = &monitors[monitorat(-1, -1)]; memcpy(tmp, m->seltags, sizeof initags); memcpy(m->seltags, m->prevtags, sizeof initags); memcpy(m->prevtags, tmp, sizeof initags); arrange(); } void zoom(const char *arg) { Client *c; if(!sel || !dozoom || sel->isfloating) return; if((c = sel) == nexttiled(clients, &monitors[c->monitor])) if(!(c = nexttiled(c->next, &monitors[c->monitor]))) return; detach(c); attach(c); focus(c); arrange(); } int monitorat(int x, int y) { int i; return 0; if(!XineramaIsActive(dpy)) return 0; if (x < 0 || y < 0) { Window win; unsigned int mask; XQueryPointer(dpy, DefaultRootWindow(dpy), &win, &win, &x, &y, &i, &i, &mask); } for(i = 0; i < mcount; i++) { Monitor *m = &monitors[i]; if((x < 0 || (x >= m->sx && x < m->sx + m->sw)) && (y < 0 || (y >= m->sy && y < m->sy + m->sh))) { return i; } } return 0; } void movetomonitor(const char *arg) { if (sel) { sel->monitor = arg ? atoi(arg) : (sel->monitor+1) % mcount; memcpy(sel->tags, monitors[sel->monitor].seltags, sizeof initags); resize(sel, monitors[sel->monitor].wax, monitors[sel->monitor].way, sel->w, sel->h, True); arrange(); } } void selectmonitor(const char *arg) { Monitor *m = &monitors[arg ? atoi(arg) : (monitorat(-1, -1)+1) % mcount]; XWarpPointer(dpy, None, m->root, 0, 0, 0, 0, m->wax+m->waw/2, m->way+m->wah/2); focus(NULL); } int main(int argc, char *argv[]) { if(argc == 2 && !strcmp("-v", argv[1])) eprint("dwm-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, " "Jukka Salmi, Premysl Hruby, Szabolcs Nagy, Christof Musik\n"); else if(argc != 1) eprint("usage: dwm [-v]\n"); setlocale(LC_CTYPE, ""); if(!(dpy = XOpenDisplay(0))) eprint("dwm: cannot open display\n"); checkotherwm(); setup(); drawbar(); scan(); run(); cleanup(); XCloseDisplay(dpy); return 0; }


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