+void
+configurerequest(XEvent *e) {
+ Client *c;
+ XConfigureRequestEvent *ev = &e->xconfigurerequest;
+ XWindowChanges wc;
+
+ if((c = getclient(ev->window))) {
+ if(ev->value_mask & CWBorderWidth)
+ c->bw = ev->border_width;
+ else if(c->isfloating || !lt[selmon->sellt]->arrange) {
+ if(ev->value_mask & CWX)
+ c->x = sx + ev->x;
+ if(ev->value_mask & CWY)
+ c->y = sy + ev->y;
+ if(ev->value_mask & CWWidth)
+ c->w = ev->width;
+ if(ev->value_mask & CWHeight)
+ c->h = ev->height;
+ if((c->x - sx + c->w) > sw && c->isfloating)
+ c->x = sx + (sw / 2 - c->w / 2); /* center in x direction */
+ if((c->y - sy + c->h) > sh && c->isfloating)
+ c->y = sy + (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))
+ 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) {
+ Client **tc;
+
+ for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
+ *tc = c->next;
+}
+
+void
+detachstack(Client *c) {
+ Client **tc;
+
+ for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
+ *tc = c->snext;
+}
+
+void
+die(const char *errstr, ...) {
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+void
+drawbar(Monitor *m) {
+ int x;
+ unsigned int i, occ = 0, urg = 0;
+ unsigned long *col;
+ Client *c;
+
+ for(c = m->clients; c; c = c->next) {
+ occ |= c->tags;
+ if(c->isurgent)
+ urg |= c->tags;
+ }
+
+ dc.x = 0;
+#ifdef XINERAMA
+ {
+ char buf[2];
+ buf[0] = m->screen_number + '0';
+ buf[1] = '\0';
+ dc.w = TEXTW(buf);
+ drawtext(buf, selmon == m ? dc.sel : dc.norm, True);
+ dc.x += dc.w;
+ }
+#endif /* XINERAMA */
+ m->btx = dc.x;
+ for(i = 0; i < LENGTH(tags); i++) {
+ dc.w = TEXTW(tags[i]);
+ col = m->tagset[m->seltags] & 1 << i ? dc.sel : dc.norm;
+ drawtext(tags[i], col, urg & 1 << i);
+ drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
+ occ & 1 << i, urg & 1 << i, col);
+ dc.x += dc.w;
+ }
+ if(blw > 0) {
+ dc.w = blw;
+ drawtext(lt[m->sellt]->symbol, dc.norm, False);
+ x = dc.x + dc.w;
+ }
+ else
+ x = dc.x;
+ if(m == selmon) { /* status is only drawn on selected monitor */
+ dc.w = TEXTW(stext);
+ dc.x = m->ww - dc.w;
+ if(dc.x < x) {
+ dc.x = x;
+ dc.w = m->ww - x;
+ }
+ drawtext(stext, dc.norm, False);
+ }
+ else {
+ dc.x = m->ww;
+ }
+ if((dc.w = dc.x - x) > bh) {
+ dc.x = x;
+ if(m->sel) {
+ col = m == selmon ? dc.sel : dc.norm;
+ drawtext(m->sel->name, col, False);
+ drawsquare(m->sel->isfixed, m->sel->isfloating, False, col);
+ }
+ else
+ drawtext(NULL, dc.norm, False);
+ }
+ XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
+ XSync(dpy, False);
+}
+
+void
+drawbars(void) {
+ Monitor *m;
+
+ for(m = mons; m; m = m->next)
+ drawbar(m);
+}
+
+void
+drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
+ int x;
+ XGCValues gcv;
+ XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+
+ gcv.foreground = col[invert ? ColBG : ColFG];
+ XChangeGC(dpy, dc.gc, GCForeground, &gcv);
+ x = (dc.font.ascent + dc.font.descent + 2) / 4;
+ r.x = dc.x + 1;
+ r.y = dc.y + 1;
+ if(filled) {
+ r.width = r.height = x + 1;
+ XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+ }
+ else if(empty) {
+ r.width = r.height = x;
+ XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+ }
+}
+
+void
+drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
+ char buf[256];
+ int i, x, y, h, len, olen;
+ XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+
+ XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
+ XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+ if(!text)
+ return;
+ olen = strlen(text);
+ h = dc.font.ascent + dc.font.descent;
+ y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
+ x = dc.x + (h / 2);
+ /* shorten text if necessary */
+ for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
+ if(!len)
+ return;
+ memcpy(buf, text, len);
+ if(len < olen)
+ for(i = len; i && i > len - 3; buf[--i] = '.');
+ XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
+ if(dc.font.set)
+ XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
+ else
+ XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
+}
+
+void
+enternotify(XEvent *e) {
+ Client *c;
+ Monitor *m;
+ XCrossingEvent *ev = &e->xcrossing;
+
+ if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
+ return;
+ if((m = getmonitor(ev->window)) && m != selmon) {
+ unfocus(selmon->sel);
+ selmon = m;
+ }
+ if((c = getclient(ev->window)))
+ focus(c);
+ else
+ focus(NULL);
+}
+
+void
+expose(XEvent *e) {
+ Monitor *m;
+ XExposeEvent *ev = &e->xexpose;
+
+ if(ev->count == 0 && (m = getmonitor(ev->window)))
+ drawbar(m);
+}
+
+void
+focus(Client *c) {
+ if(!c || !ISVISIBLE(c))
+ for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
+ if(selmon->sel)
+ unfocus(selmon->sel);
+ if(c) {
+ if(c->mon != selmon)
+ selmon = c->mon;
+ if(c->isurgent)
+ clearurgent(c);
+ detachstack(c);
+ attachstack(c);
+ grabbuttons(c, True);
+ XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
+ XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+ }
+ else
+ XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+ selmon->sel = c;
+ drawbars();
+}
+
+void
+focusin(XEvent *e) { /* there are some broken focus acquiring clients */
+ XFocusChangeEvent *ev = &e->xfocus;
+
+ if(selmon->sel && ev->window != selmon->sel->win)
+ XSetInputFocus(dpy, selmon->sel->win, RevertToPointerRoot, CurrentTime);
+}
+
+#ifdef XINERAMA
+void
+focusmon(const Arg *arg) {
+ unsigned int i;
+ Monitor *m;
+
+ for(i = 0, m = mons; m; m = m->next, i++)
+ if(i == arg->ui) {
+ if(m == selmon)
+ return;
+ unfocus(selmon->sel);
+ selmon = m;
+ focus(NULL);
+ break;
+ }
+}
+#endif /* XINERAMA */
+
+void
+focusstack(const Arg *arg) {
+ Client *c = NULL, *i;
+
+ if(!selmon->sel)
+ return;
+ if(arg->i > 0) {
+ for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
+ if(!c)
+ for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
+ }
+ else {
+ for(i = selmon->clients; i != selmon->sel; i = i->next)
+ if(ISVISIBLE(i))
+ c = i;
+ if(!c)
+ for(; i; i = i->next)
+ if(ISVISIBLE(i))
+ c = i;
+ }
+ if(c) {
+ focus(c);
+ restack(selmon);
+ }
+}
+
+Client *
+getclient(Window w) {
+ Client *c;
+ Monitor *m;
+
+ for(m = mons; m; m = m->next)
+ for(c = m->clients; c; c = c->next)
+ if(c->win == w)
+ return c;
+ return NULL;
+}
+
+unsigned long
+getcolor(const char *colstr) {
+ Colormap cmap = DefaultColormap(dpy, screen);
+ XColor color;
+
+ if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
+ die("error, cannot allocate color '%s'\n", colstr);
+ return color.pixel;
+}
+
+Monitor *
+getmonitor(Window w) {
+ int x, y;
+ Client *c;
+ Monitor *m;
+
+ if(w == root && getrootpointer(&x, &y))
+ return getmonitorxy(x, y);
+ for(m = mons; m; m = m->next)
+ if(w == m->barwin)
+ return m;
+ if((c = getclient(w)))
+ return c->mon;
+ return NULL;
+}
+
+Monitor *
+getmonitorxy(int x, int y) {
+ Monitor *m;
+
+ for(m = mons; m; m = m->next)
+ if(INRECT(x, y, m->wx, m->wy, m->ww, m->wh))
+ return m;
+ return NULL;
+}
+
+Bool
+getrootpointer(int *x, int *y) {
+ int di;
+ unsigned int dui;
+ Window dummy;
+ return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
+}
+
+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) {
+ updatenumlockmask();
+ {
+ unsigned int i, j;
+ unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+ XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+ if(focused) {
+ for(i = 0; i < LENGTH(buttons); i++)
+ if(buttons[i].click == ClkClientWin)
+ for(j = 0; j < LENGTH(modifiers); j++)
+ XGrabButton(dpy, buttons[i].button,
+ buttons[i].mask | modifiers[j],
+ c->win, False, BUTTONMASK,
+ GrabModeAsync, GrabModeSync, None, None);
+ } else
+ XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
+ BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
+ }
+}
+
+void
+grabkeys(void) {
+ updatenumlockmask();
+ { /* grab keys */
+ unsigned int i, j;
+ unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+ KeyCode code;
+
+ XUngrabKey(dpy, AnyKey, AnyModifier, root);
+ for(i = 0; i < LENGTH(keys); i++) {
+ if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
+ for(j = 0; j < LENGTH(modifiers); j++)
+ XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
+ True, GrabModeAsync, GrabModeAsync);
+ }
+ }
+}
+
+void
+initfont(const char *fontstr) {
+ char *def, **missing;
+ int i, n;
+
+ missing = NULL;
+ 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(dc.font.set) {
+ XFontSetExtents *font_extents;
+ XFontStruct **xfonts;
+ char **font_names;
+ dc.font.ascent = dc.font.descent = 0;
+ font_extents = XExtentsOfFontSet(dc.font.set);
+ n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
+ for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
+ dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
+ dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
+ xfonts++;
+ }
+ }
+ else {
+ if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
+ && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
+ die("error, cannot load font: '%s'\n", fontstr);
+ dc.font.ascent = dc.font.xfont->ascent;
+ dc.font.descent = dc.font.xfont->descent;
+ }
+ dc.font.height = dc.font.ascent + dc.font.descent;
+}
+
+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;
+}
+
+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)
+ && keys[i].func)
+ keys[i].func(&(keys[i].arg));
+}
+
+void
+killclient(const Arg *arg) {
+ XEvent ev;
+
+ if(!selmon->sel)
+ return;
+ if(isprotodel(selmon->sel)) {
+ ev.type = ClientMessage;
+ ev.xclient.window = selmon->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, selmon->sel->win, False, NoEventMask, &ev);
+ }
+ else
+ XKillClient(dpy, selmon->sel->win);
+}
+
+void
+manage(Window w, XWindowAttributes *wa) {
+ static Client cz;
+ Client *c, *t = NULL;
+ Window trans = None;