include config.mk
-SRC += bar.c client.c event.c main.c screen.c util.c
+SRC = dwm.c
OBJ = ${SRC:.c=.o}
all: options dwm
@echo CC $<
@${CC} -c ${CFLAGS} $<
-${OBJ}: dwm.h config.h config.mk
+${OBJ}: config.h config.mk
dwm: ${OBJ}
@echo CC -o $@
@echo creating dist tarball
@mkdir -p dwm-${VERSION}
@cp -R LICENSE Makefile README config.h config.mk \
- dwm.1 dwm.h tile.h ${SRC} dwm-${VERSION}
+ dwm.1 ${SRC} dwm-${VERSION}
@tar -cf dwm-${VERSION}.tar dwm-${VERSION}
@gzip dwm-${VERSION}.tar
@rm -rf dwm-${VERSION}
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-#include "dwm.h"
-#include <string.h>
-#include <stdio.h>
-
-/* static */
-
-static void
-drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
- int x;
- XGCValues gcv;
- XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-
- gcv.foreground = col[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);
- }
-}
-
-static unsigned long
-initcolor(const char *colstr) {
- 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;
-}
-
-static void
-initfont(const char *fontstr) {
- char *def, **missing;
- int i, n;
-
- missing = NULL;
- if(dc.font.set)
- XFreeFontSet(dpy, dc.font.set);
- 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++) {
- if(dc.font.ascent < (*xfonts)->ascent)
- dc.font.ascent = (*xfonts)->ascent;
- if(dc.font.descent < (*xfonts)->descent)
- dc.font.descent = (*xfonts)->descent;
- xfonts++;
- }
- }
- else {
- if(dc.font.xfont)
- XFreeFont(dpy, dc.font.xfont);
- dc.font.xfont = NULL;
- if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
- || !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
- eprint("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;
-}
-
-static Bool
-isoccupied(unsigned int t) {
- Client *c;
-
- for(c = clients; c; c = c->next)
- if(c->tags[t])
- return True;
- return False;
-}
-
-static unsigned int
-textnw(const char *text, unsigned int len) {
- XRectangle r;
-
- if(dc.font.set) {
- XmbTextExtents(dc.font.set, text, len, NULL, &r);
- return r.width;
- }
- return XTextWidth(dc.font.xfont, text, len);
-}
-
-static void
-drawtext(const char *text, unsigned long col[ColLast]) {
- int x, y, w, h;
- static char buf[256];
- unsigned int len, olen;
- XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-
- XSetForeground(dpy, dc.gc, col[ColBG]);
- XFillRectangles(dpy, dc.drawable, 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 = 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 */
- while(len && (w = textnw(buf, len)) > 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 > dc.w)
- return; /* too long */
- XSetForeground(dpy, dc.gc, col[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);
-}
-
-/* extern */
-
-unsigned int bh;
-unsigned int bpos = BARPOS;
-DC dc = {0};
-Window barwin;
-
-void
-drawbar(void) {
- int i, x;
-
- dc.x = dc.y = 0;
- for(i = 0; i < ntags; i++) {
- dc.w = textw(tags[i]);
- if(seltags[i]) {
- drawtext(tags[i], dc.sel);
- drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
- }
- else {
- drawtext(tags[i], dc.norm);
- drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
- }
- dc.x += dc.w;
- }
- dc.w = blw;
- drawtext(getsymbol(), dc.norm);
- x = dc.x + dc.w;
- dc.w = textw(stext);
- dc.x = sw - dc.w;
- if(dc.x < x) {
- dc.x = x;
- dc.w = sw - x;
- }
- drawtext(stext, dc.norm);
- if((dc.w = dc.x - x) > bh) {
- dc.x = x;
- if(sel) {
- drawtext(sel->name, dc.sel);
- drawsquare(sel->ismax, sel->isfloating, dc.sel);
- }
- else
- drawtext(NULL, dc.norm);
- }
- XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
- XSync(dpy, False);
-}
-
-void
-initstyle(void) {
- dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR);
- dc.norm[ColBG] = initcolor(NORMBGCOLOR);
- dc.norm[ColFG] = initcolor(NORMFGCOLOR);
- dc.sel[ColBorder] = initcolor(SELBORDERCOLOR);
- dc.sel[ColBG] = initcolor(SELBGCOLOR);
- dc.sel[ColFG] = initcolor(SELFGCOLOR);
- initfont(FONT);
- dc.h = bh = dc.font.height + 2;
-}
-
-void
-initbar(void) {
- XSetWindowAttributes wa;
-
- wa.override_redirect = 1;
- wa.background_pixmap = ParentRelative;
- wa.event_mask = ButtonPressMask | ExposureMask;
- barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
- DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
- CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
- XDefineCursor(dpy, barwin, cursor[CurNormal]);
- updatebarpos();
- XMapRaised(dpy, barwin);
- strcpy(stext, "dwm-"VERSION);
- dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
- dc.gc = XCreateGC(dpy, root, 0, 0);
- XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
- if(!dc.font.set)
- XSetFont(dpy, dc.gc, dc.font.xfont->fid);
-}
-
-unsigned int
-textw(const char *text) {
- return textnw(text, strlen(text)) + dc.font.height;
-}
-
-void
-togglebar(const char *arg) {
- if(bpos == BarOff)
- bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
- else
- bpos = BarOff;
- updatebarpos();
- arrange();
-}
-
-void
-updatebarpos(void) {
- XEvent ev;
-
- wax = sx;
- way = sy;
- wah = sh;
- waw = sw;
- switch(bpos) {
- default:
- wah -= bh;
- way += bh;
- XMoveWindow(dpy, barwin, sx, sy);
- break;
- case BarBot:
- wah -= bh;
- XMoveWindow(dpy, barwin, sx, sy + wah);
- break;
- case BarOff:
- XMoveWindow(dpy, barwin, sx, sy - bh);
- break;
- }
- XSync(dpy, False);
- while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-}
-
-
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-#include "dwm.h"
-#include <stdlib.h>
-#include <X11/Xutil.h>
-
-/* static */
-
-static void
-attachstack(Client *c) {
- c->snext = stack;
- stack = c;
-}
-
-static void
-detachstack(Client *c) {
- Client **tc;
-
- for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
- *tc = c->snext;
-}
-
-static 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);
-}
-
-static 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;
-}
-
-static void
-setclientstate(Client *c, long state) {
- long data[] = {state, None};
-
- XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
- PropModeReplace, (unsigned char *)data, 2);
-}
-
-static int
-xerrordummy(Display *dsply, XErrorEvent *ee) {
- return 0;
-}
-
-/* extern */
-
-void
-attach(Client *c) {
- if(clients)
- clients->prev = c;
- c->next = clients;
- clients = c;
-}
-
-void
-ban(Client *c) {
- if(c->isbanned)
- return;
- XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
- c->isbanned = True;
-}
-
-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
-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
-focus(Client *c) {
- if((!c && selscreen) || (c && !isvisible(c)))
- for(c = stack; c && !isvisible(c); c = c->snext);
- if(sel && sel != c) {
- grabbuttons(sel, False);
- XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
- }
- if(c) {
- detachstack(c);
- attachstack(c);
- grabbuttons(c, True);
- }
- sel = c;
- drawbar();
- if(!selscreen)
- return;
- if(c) {
- XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
- XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
- }
- else
- XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
-}
-
-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) {
- unsigned int i;
- Client *c, *t = NULL;
- Window trans;
- Status rettrans;
- XWindowChanges wc;
-
- c = emallocz(sizeof(Client));
- c->tags = emallocz(ntags * sizeof(Bool));
- c->win = w;
- c->x = wa->x;
- c->y = wa->y;
- c->w = wa->width;
- c->h = wa->height;
- c->oldborder = wa->border_width;
- if(c->w == sw && c->h == sh) {
- c->x = sx;
- c->y = sy;
- c->border = wa->border_width;
- }
- else {
- if(c->x + c->w + 2 * c->border > wax + waw)
- c->x = wax + waw - c->w - 2 * c->border;
- if(c->y + c->h + 2 * c->border > way + wah)
- c->y = way + wah - c->h - 2 * c->border;
- if(c->x < wax)
- c->x = wax;
- if(c->y < way)
- c->y = way;
- c->border = BORDERPX;
- }
- wc.border_width = c->border;
- XConfigureWindow(dpy, w, CWBorderWidth, &wc);
- XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
- configure(c); /* propagates border_width, if size doesn't change */
- updatesizehints(c);
- XSelectInput(dpy, w,
- StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
- grabbuttons(c, False);
- updatetitle(c);
- if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
- for(t = clients; t && t->win != trans; t = t->next);
- if(t)
- for(i = 0; i < ntags; i++)
- c->tags[i] = t->tags[i];
- applyrules(c);
- 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
-resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
- double dx, dy, max, min, ratio;
- XWindowChanges wc;
-
- if(sizehints) {
- if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
- dx = (double)(w - c->basew);
- dy = (double)(h - c->baseh);
- min = (double)(c->minax) / (double)(c->minay);
- max = (double)(c->maxax) / (double)(c->maxay);
- ratio = dx / dy;
- if(max > 0 && min > 0 && ratio > 0) {
- if(ratio < min) {
- dy = (dx * min + dy) / (min * min + 1);
- dx = dy * min;
- w = (int)dx + c->basew;
- h = (int)dy + c->baseh;
- }
- else if(ratio > max) {
- dy = (dx * min + dy) / (max * max + 1);
- dx = dy * min;
- w = (int)dx + c->basew;
- h = (int)dy + c->baseh;
- }
- }
- }
- if(c->minw && w < c->minw)
- w = c->minw;
- if(c->minh && h < c->minh)
- h = c->minh;
- if(c->maxw && w > c->maxw)
- w = c->maxw;
- if(c->maxh && h > c->maxh)
- h = c->maxh;
- if(c->incw)
- w -= (w - c->basew) % c->incw;
- if(c->inch)
- h -= (h - c->baseh) % c->inch;
- }
- if(w <= 0 || h <= 0)
- return;
- /* offscreen appearance fixes */
- if(x > sw)
- x = sw - w - 2 * c->border;
- if(y > sh)
- y = sh - h - 2 * c->border;
- if(x + w + 2 * c->border < sx)
- x = sx;
- if(y + h + 2 * c->border < sy)
- y = 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
-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
-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);
-}
#define SELFGCOLOR "#fff"
/* tagging */
-#define TAGS \
-const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
-#define RULES \
-static Rule rules[] = { \
- /* class:instance:title regex tags regex isfloating */ \
- { "Firefox", "3", False }, \
- { "Gimp", NULL, True }, \
- { "MPlayer", NULL, True }, \
- { "Acroread", NULL, True }, \
+static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
+static Rule rules[] = {
+ /* class:instance:title regex tags regex isfloating */
+ { "Firefox", "3", False },
+ { "Gimp", NULL, True },
+ { "MPlayer", NULL, True },
+ { "Acroread", NULL, True },
};
/* layout(s) */
-#include "tile.h"
-#define LAYOUTS \
-static Layout layouts[] = { \
- /* symbol function */ \
- { "[]=", tile }, /* first entry is default */ \
- { "><>", floating }, \
+static Layout layouts[] = {
+ /* symbol function */
+ { "[]=", tile }, /* first entry is default */
+ { "><>", floating },
};
#define RESIZEHINTS True /* False - respect size hints in tiled resizals */
#define MWFACT 0.6 /* master width factor [0.1 .. 0.9] */
# Customize below to fit your system
-# additional layouts beside floating
-SRC = tile.c
-
# paths
PREFIX = /usr/local
MANPREFIX = ${PREFIX}/share/man
--- /dev/null
+/* See LICENSE file for copyright and license details. */
+#include <errno.h>
+#include <locale.h>
+#include <regex.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/select.h>
+#include <sys/wait.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <X11/Xatom.h>
+#include <X11/Xproto.h>
+#include <X11/Xutil.h>
+
+/* macros */
+#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
+#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
+#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 rx, ry, rw, rh; /* revert geometry */
+ int basew, baseh, incw, inch, maxw, maxh, minw, minh;
+ int minax, maxax, minay, maxay;
+ long flags;
+ unsigned int border, oldborder;
+ Bool isbanned, isfixed, ismax, isfloating;
+ Bool *tags;
+ Client *next;
+ Client *prev;
+ Client *snext;
+ Window win;
+};
+
+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;
+} Rule;
+
+typedef struct {
+ regex_t *propregex;
+ regex_t *tagregex;
+} Regs;
+
+/* functions */
+static void eprint(const char *errstr, ...);
+static void *emallocz(unsigned int size);
+static void spawn(const char *arg);
+static void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
+static unsigned long initcolor(const char *colstr);
+static void initfont(const char *fontstr);
+static Bool isoccupied(unsigned int t);
+static unsigned int textnw(const char *text, unsigned int len);
+static void drawtext(const char *text, unsigned long col[ColLast]);
+static void drawbar(void);
+static void initstyle(void);
+static void initbar(void);
+static unsigned int textw(const char *text);
+static void togglebar(const char *arg);
+static void updatebarpos(void);
+static void attachstack(Client *c);
+static void detachstack(Client *c);
+static void grabbuttons(Client *c, Bool focused);
+static Bool isprotodel(Client *c);
+static void setclientstate(Client *c, long state);
+static int xerrordummy(Display *dsply, XErrorEvent *ee);
+static void ban(Client *c);
+static void configure(Client *c);
+static void killclient(const char *arg);
+static void manage(Window w, XWindowAttributes *wa);
+static void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
+static void unban(Client *c);
+static void unmanage(Client *c);
+static void updatesizehints(Client *c);
+static void updatetitle(Client *c);
+static Client *getclient(Window w);
+static void movemouse(Client *c);
+static void resizemouse(Client *c);
+static void buttonpress(XEvent *e);
+static void configurerequest(XEvent *e);
+static void configurenotify(XEvent *e);
+static void destroynotify(XEvent *e);
+static void enternotify(XEvent *e);
+static void expose(XEvent *e);
+static void keypress(XEvent *e);
+static void leavenotify(XEvent *e);
+static void mappingnotify(XEvent *e);
+static void maprequest(XEvent *e);
+static void propertynotify(XEvent *e);
+static void unmapnotify(XEvent *e);
+static void grabkeys(void);
+static unsigned int idxoftag(const char *tag);
+static void floating(void); /* default floating layout */
+static void applyrules(Client *c);
+static void compileregs(void);
+static void focusnext(const char *arg);
+static void focusprev(const char *arg);
+static void initlayouts(void);
+static Bool isfloating(void);
+static Bool isvisible(Client *c);
+static void restack(void);
+static void setlayout(const char *arg);
+static void tag(const char *arg);
+static void togglefloating(const char *arg);
+static void togglemax(const char *arg);
+static void toggletag(const char *arg);
+static void toggleview(const char *arg);
+static void view(const char *arg);
+static void cleanup(void);
+static long getstate(Window w);
+static void scan(void);
+static void setup(void);
+static int xerrorstart(Display *dsply, XErrorEvent *ee);
+static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
+static void quit(const char *arg);
+static int xerror(Display *dpy, XErrorEvent *ee);
+static void arrange(void);
+static void attach(Client *c);
+static void detach(Client *c);
+static void focus(Client *c);
+static Bool isarrange(void (*func)());
+static Client *nexttiled(Client *c);
+static void setmwfact(const char *arg);
+static void tile(void);
+static void zoom(const char *arg);
+
+#include "config.h"
+
+/* variables */
+static char stext[256];
+static double mwfact = MWFACT;
+static int screen, sx, sy, sw, sh, wax, way, waw, wah;
+static int (*xerrorxlib)(Display *, XErrorEvent *);
+static unsigned int bh;
+static unsigned int blw = 0;
+static unsigned int bpos = BARPOS;
+static unsigned int ltidx = 0; /* default */
+static unsigned int nlayouts = 0;
+static unsigned int nrules = 0;
+static unsigned int ntags;
+static unsigned int numlockmask = 0;
+static void (*handler[LASTEvent]) (XEvent *) = {
+ [ButtonPress] = buttonpress,
+ [ConfigureRequest] = configurerequest,
+ [ConfigureNotify] = configurenotify,
+ [DestroyNotify] = destroynotify,
+ [EnterNotify] = enternotify,
+ [LeaveNotify] = leavenotify,
+ [Expose] = expose,
+ [KeyPress] = keypress,
+ [MappingNotify] = mappingnotify,
+ [MapRequest] = maprequest,
+ [PropertyNotify] = propertynotify,
+ [UnmapNotify] = unmapnotify
+};
+static Atom wmatom[WMLast], netatom[NetLast];
+static Bool otherwm, readin;
+static Bool running = True;
+static Bool *seltags;
+static Bool selscreen = True;
+static Client *clients = NULL;
+static Client *sel = NULL;
+static Client *stack = NULL;
+static Cursor cursor[CurLast];
+static Display *dpy;
+static DC dc = {0};
+static Window barwin, root;
+static Regs *regs = NULL;
+
+static void
+eprint(const char *errstr, ...) {
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+static void *
+emallocz(unsigned int size) {
+ void *res = calloc(1, size);
+
+ if(!res)
+ eprint("fatal: could not malloc() %u bytes\n", size);
+ return res;
+}
+
+static 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);
+}
+
+static void
+drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
+ int x;
+ XGCValues gcv;
+ XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+
+ gcv.foreground = col[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);
+ }
+}
+
+static unsigned long
+initcolor(const char *colstr) {
+ 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;
+}
+
+static void
+initfont(const char *fontstr) {
+ char *def, **missing;
+ int i, n;
+
+ missing = NULL;
+ if(dc.font.set)
+ XFreeFontSet(dpy, dc.font.set);
+ 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++) {
+ if(dc.font.ascent < (*xfonts)->ascent)
+ dc.font.ascent = (*xfonts)->ascent;
+ if(dc.font.descent < (*xfonts)->descent)
+ dc.font.descent = (*xfonts)->descent;
+ xfonts++;
+ }
+ }
+ else {
+ if(dc.font.xfont)
+ XFreeFont(dpy, dc.font.xfont);
+ dc.font.xfont = NULL;
+ if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
+ || !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
+ eprint("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;
+}
+
+static Bool
+isoccupied(unsigned int t) {
+ Client *c;
+
+ for(c = clients; c; c = c->next)
+ if(c->tags[t])
+ return True;
+ return False;
+}
+
+static unsigned int
+textnw(const char *text, unsigned int len) {
+ XRectangle r;
+
+ if(dc.font.set) {
+ XmbTextExtents(dc.font.set, text, len, NULL, &r);
+ return r.width;
+ }
+ return XTextWidth(dc.font.xfont, text, len);
+}
+
+static void
+drawtext(const char *text, unsigned long col[ColLast]) {
+ int x, y, w, h;
+ static char buf[256];
+ unsigned int len, olen;
+ XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+
+ XSetForeground(dpy, dc.gc, col[ColBG]);
+ XFillRectangles(dpy, dc.drawable, 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 = 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 */
+ while(len && (w = textnw(buf, len)) > 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 > dc.w)
+ return; /* too long */
+ XSetForeground(dpy, dc.gc, col[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);
+}
+
+static void
+drawbar(void) {
+ int i, x;
+
+ dc.x = dc.y = 0;
+ for(i = 0; i < ntags; i++) {
+ dc.w = textw(tags[i]);
+ if(seltags[i]) {
+ drawtext(tags[i], dc.sel);
+ drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
+ }
+ else {
+ drawtext(tags[i], dc.norm);
+ drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
+ }
+ dc.x += dc.w;
+ }
+ dc.w = blw;
+ drawtext(layouts[ltidx].symbol, dc.norm);
+ x = dc.x + dc.w;
+ dc.w = textw(stext);
+ dc.x = sw - dc.w;
+ if(dc.x < x) {
+ dc.x = x;
+ dc.w = sw - x;
+ }
+ drawtext(stext, dc.norm);
+ if((dc.w = dc.x - x) > bh) {
+ dc.x = x;
+ if(sel) {
+ drawtext(sel->name, dc.sel);
+ drawsquare(sel->ismax, sel->isfloating, dc.sel);
+ }
+ else
+ drawtext(NULL, dc.norm);
+ }
+ XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
+ XSync(dpy, False);
+}
+
+static void
+initstyle(void) {
+ dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR);
+ dc.norm[ColBG] = initcolor(NORMBGCOLOR);
+ dc.norm[ColFG] = initcolor(NORMFGCOLOR);
+ dc.sel[ColBorder] = initcolor(SELBORDERCOLOR);
+ dc.sel[ColBG] = initcolor(SELBGCOLOR);
+ dc.sel[ColFG] = initcolor(SELFGCOLOR);
+ initfont(FONT);
+ dc.h = bh = dc.font.height + 2;
+}
+
+static void
+initbar(void) {
+ XSetWindowAttributes wa;
+
+ wa.override_redirect = 1;
+ wa.background_pixmap = ParentRelative;
+ wa.event_mask = ButtonPressMask | ExposureMask;
+ barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
+ DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
+ CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
+ XDefineCursor(dpy, barwin, cursor[CurNormal]);
+ updatebarpos();
+ XMapRaised(dpy, barwin);
+ strcpy(stext, "dwm-"VERSION);
+ dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
+ dc.gc = XCreateGC(dpy, root, 0, 0);
+ XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
+ if(!dc.font.set)
+ XSetFont(dpy, dc.gc, dc.font.xfont->fid);
+}
+
+static unsigned int
+textw(const char *text) {
+ return textnw(text, strlen(text)) + dc.font.height;
+}
+
+static void
+togglebar(const char *arg) {
+ if(bpos == BarOff)
+ bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
+ else
+ bpos = BarOff;
+ updatebarpos();
+ arrange();
+}
+
+static void
+updatebarpos(void) {
+ XEvent ev;
+
+ wax = sx;
+ way = sy;
+ wah = sh;
+ waw = sw;
+ switch(bpos) {
+ default:
+ wah -= bh;
+ way += bh;
+ XMoveWindow(dpy, barwin, sx, sy);
+ break;
+ case BarBot:
+ wah -= bh;
+ XMoveWindow(dpy, barwin, sx, sy + wah);
+ break;
+ case BarOff:
+ XMoveWindow(dpy, barwin, sx, sy - bh);
+ break;
+ }
+ XSync(dpy, False);
+ while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+static void
+attachstack(Client *c) {
+ c->snext = stack;
+ stack = c;
+}
+
+static void
+detachstack(Client *c) {
+ Client **tc;
+
+ for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
+ *tc = c->snext;
+}
+
+static 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);
+}
+
+static 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;
+}
+
+static void
+setclientstate(Client *c, long state) {
+ long data[] = {state, None};
+
+ XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
+ PropModeReplace, (unsigned char *)data, 2);
+}
+
+static int
+xerrordummy(Display *dsply, XErrorEvent *ee) {
+ return 0;
+}
+
+static void
+ban(Client *c) {
+ if(c->isbanned)
+ return;
+ XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+ c->isbanned = True;
+}
+
+static 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);
+}
+
+static 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);
+}
+
+static void
+manage(Window w, XWindowAttributes *wa) {
+ unsigned int i;
+ Client *c, *t = NULL;
+ Window trans;
+ Status rettrans;
+ XWindowChanges wc;
+
+ c = emallocz(sizeof(Client));
+ c->tags = emallocz(ntags * sizeof(Bool));
+ c->win = w;
+ c->x = wa->x;
+ c->y = wa->y;
+ c->w = wa->width;
+ c->h = wa->height;
+ c->oldborder = wa->border_width;
+ if(c->w == sw && c->h == sh) {
+ c->x = sx;
+ c->y = sy;
+ c->border = wa->border_width;
+ }
+ else {
+ if(c->x + c->w + 2 * c->border > wax + waw)
+ c->x = wax + waw - c->w - 2 * c->border;
+ if(c->y + c->h + 2 * c->border > way + wah)
+ c->y = way + wah - c->h - 2 * c->border;
+ if(c->x < wax)
+ c->x = wax;
+ if(c->y < way)
+ c->y = way;
+ c->border = BORDERPX;
+ }
+ wc.border_width = c->border;
+ XConfigureWindow(dpy, w, CWBorderWidth, &wc);
+ XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
+ configure(c); /* propagates border_width, if size doesn't change */
+ updatesizehints(c);
+ XSelectInput(dpy, w,
+ StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+ grabbuttons(c, False);
+ updatetitle(c);
+ if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
+ for(t = clients; t && t->win != trans; t = t->next);
+ if(t)
+ for(i = 0; i < ntags; i++)
+ c->tags[i] = t->tags[i];
+ applyrules(c);
+ 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();
+}
+
+static void
+resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
+ double dx, dy, max, min, ratio;
+ XWindowChanges wc;
+
+ if(sizehints) {
+ if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
+ dx = (double)(w - c->basew);
+ dy = (double)(h - c->baseh);
+ min = (double)(c->minax) / (double)(c->minay);
+ max = (double)(c->maxax) / (double)(c->maxay);
+ ratio = dx / dy;
+ if(max > 0 && min > 0 && ratio > 0) {
+ if(ratio < min) {
+ dy = (dx * min + dy) / (min * min + 1);
+ dx = dy * min;
+ w = (int)dx + c->basew;
+ h = (int)dy + c->baseh;
+ }
+ else if(ratio > max) {
+ dy = (dx * min + dy) / (max * max + 1);
+ dx = dy * min;
+ w = (int)dx + c->basew;
+ h = (int)dy + c->baseh;
+ }
+ }
+ }
+ if(c->minw && w < c->minw)
+ w = c->minw;
+ if(c->minh && h < c->minh)
+ h = c->minh;
+ if(c->maxw && w > c->maxw)
+ w = c->maxw;
+ if(c->maxh && h > c->maxh)
+ h = c->maxh;
+ if(c->incw)
+ w -= (w - c->basew) % c->incw;
+ if(c->inch)
+ h -= (h - c->baseh) % c->inch;
+ }
+ if(w <= 0 || h <= 0)
+ return;
+ /* offscreen appearance fixes */
+ if(x > sw)
+ x = sw - w - 2 * c->border;
+ if(y > sh)
+ y = sh - h - 2 * c->border;
+ if(x + w + 2 * c->border < sx)
+ x = sx;
+ if(y + h + 2 * c->border < sy)
+ y = 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);
+ }
+}
+
+static void
+unban(Client *c) {
+ if(!c->isbanned)
+ return;
+ XMoveWindow(dpy, c->win, c->x, c->y);
+ c->isbanned = False;
+}
+
+static 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();
+}
+
+static 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);
+}
+
+static 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);
+}
+
+static Client *
+getclient(Window w) {
+ Client *c;
+
+ for(c = clients; c && c->win != w; c = c->next);
+ return c;
+}
+
+static 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, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+ None, cursor[CurMove], CurrentTime) != GrabSuccess)
+ return;
+ c->ismax = False;
+ XQueryPointer(dpy, 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);
+ if(abs(wax + nx) < SNAP)
+ nx = wax;
+ else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
+ nx = wax + waw - c->w - 2 * c->border;
+ if(abs(way - ny) < SNAP)
+ ny = way;
+ else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
+ ny = way + wah - c->h - 2 * c->border;
+ resize(c, nx, ny, c->w, c->h, False);
+ break;
+ }
+ }
+}
+
+static void
+resizemouse(Client *c) {
+ int ocx, ocy;
+ int nw, nh;
+ XEvent ev;
+
+ ocx = c->x;
+ ocy = c->y;
+ if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+ None, cursor[CurResize], CurrentTime) != GrabSuccess)
+ return;
+ c->ismax = False;
+ 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;
+ }
+ }
+}
+
+static void
+buttonpress(XEvent *e) {
+ unsigned int i, x;
+ Client *c;
+ XButtonPressedEvent *ev = &e->xbutton;
+
+ if(barwin == ev->window) {
+ x = 0;
+ for(i = 0; i < ntags; i++) {
+ x += textw(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 && (isfloating() || c->isfloating)) {
+ restack();
+ movemouse(c);
+ }
+ else if(ev->button == Button2)
+ zoom(NULL);
+ else if(ev->button == Button3
+ && (isfloating() || c->isfloating) && !c->isfixed)
+ {
+ restack();
+ resizemouse(c);
+ }
+ }
+}
+
+static void
+configurerequest(XEvent *e) {
+ Client *c;
+ XConfigureRequestEvent *ev = &e->xconfigurerequest;
+ XWindowChanges wc;
+
+ if((c = getclient(ev->window))) {
+ c->ismax = False;
+ if(ev->value_mask & CWBorderWidth)
+ c->border = ev->border_width;
+ if(c->isfixed || c->isfloating || isfloating()) {
+ if(ev->value_mask & CWX)
+ c->x = ev->x;
+ if(ev->value_mask & CWY)
+ c->y = ev->y;
+ if(ev->value_mask & CWWidth)
+ c->w = ev->width;
+ if(ev->value_mask & CWHeight)
+ c->h = ev->height;
+ if((c->x + c->w) > sw && c->isfloating)
+ c->x = sw / 2 - c->w / 2; /* center in x direction */
+ if((c->y + c->h) > sh && c->isfloating)
+ c->y = 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);
+}
+
+static void
+configurenotify(XEvent *e) {
+ XConfigureEvent *ev = &e->xconfigure;
+
+ if (ev->window == root && (ev->width != sw || ev->height != sh)) {
+ sw = ev->width;
+ sh = ev->height;
+ XFreePixmap(dpy, dc.drawable);
+ dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
+ XResizeWindow(dpy, barwin, sw, bh);
+ updatebarpos();
+ arrange();
+ }
+}
+
+static void
+destroynotify(XEvent *e) {
+ Client *c;
+ XDestroyWindowEvent *ev = &e->xdestroywindow;
+
+ if((c = getclient(ev->window)))
+ unmanage(c);
+}
+
+static void
+enternotify(XEvent *e) {
+ Client *c;
+ XCrossingEvent *ev = &e->xcrossing;
+
+ if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
+ return;
+ if((c = getclient(ev->window)))
+ focus(c);
+ else if(ev->window == root) {
+ selscreen = True;
+ focus(NULL);
+ }
+}
+
+static void
+expose(XEvent *e) {
+ XExposeEvent *ev = &e->xexpose;
+
+ if(ev->count == 0) {
+ if(barwin == ev->window)
+ drawbar();
+ }
+}
+
+static void
+keypress(XEvent *e) {
+ KEYS
+ unsigned int len = sizeof keys / sizeof keys[0];
+ unsigned int i;
+ KeySym keysym;
+ XKeyEvent *ev = &e->xkey;
+
+ keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
+ for(i = 0; i < len; i++)
+ if(keysym == keys[i].keysym
+ && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
+ {
+ if(keys[i].func)
+ keys[i].func(keys[i].arg);
+ }
+}
+
+static void
+leavenotify(XEvent *e) {
+ XCrossingEvent *ev = &e->xcrossing;
+
+ if((ev->window == root) && !ev->same_screen) {
+ selscreen = False;
+ focus(NULL);
+ }
+}
+
+static void
+mappingnotify(XEvent *e) {
+ XMappingEvent *ev = &e->xmapping;
+
+ XRefreshKeyboardMapping(ev);
+ if(ev->request == MappingKeyboard)
+ grabkeys();
+}
+
+static 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);
+}
+
+static 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();
+ }
+ }
+}
+
+static void
+unmapnotify(XEvent *e) {
+ Client *c;
+ XUnmapEvent *ev = &e->xunmap;
+
+ if((c = getclient(ev->window)))
+ unmanage(c);
+}
+
+static void
+grabkeys(void) {
+ KEYS
+ unsigned int len = sizeof keys / sizeof keys[0];
+ unsigned int i;
+ KeyCode code;
+
+ XUngrabKey(dpy, AnyKey, AnyModifier, root);
+ for(i = 0; i < len; i++) {
+ code = XKeysymToKeycode(dpy, keys[i].keysym);
+ XGrabKey(dpy, code, keys[i].mod, root, True,
+ GrabModeAsync, GrabModeAsync);
+ XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
+ GrabModeAsync, GrabModeAsync);
+ XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
+ GrabModeAsync, GrabModeAsync);
+ XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
+ GrabModeAsync, GrabModeAsync);
+ }
+}
+
+static unsigned int
+idxoftag(const char *tag) {
+ unsigned int i;
+
+ for(i = 0; i < ntags; i++)
+ if(tags[i] == tag)
+ return i;
+ return 0;
+}
+
+static void
+floating(void) { /* default floating layout */
+ Client *c;
+
+ for(c = clients; c; c = c->next)
+ if(isvisible(c))
+ resize(c, c->x, c->y, c->w, c->h, True);
+}
+
+static void
+applyrules(Client *c) {
+ static char buf[512];
+ unsigned int i, j;
+ regmatch_t tmp;
+ Bool matched = 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 < nrules; i++)
+ if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
+ c->isfloating = rules[i].isfloating;
+ for(j = 0; regs[i].tagregex && j < ntags; j++) {
+ if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
+ matched = True;
+ c->tags[j] = True;
+ }
+ }
+ }
+ if(ch.res_class)
+ XFree(ch.res_class);
+ if(ch.res_name)
+ XFree(ch.res_name);
+ if(!matched)
+ for(i = 0; i < ntags; i++)
+ c->tags[i] = seltags[i];
+}
+
+static void
+compileregs(void) {
+ unsigned int i;
+ regex_t *reg;
+
+ if(regs)
+ return;
+ nrules = sizeof rules / sizeof rules[0];
+ regs = emallocz(nrules * sizeof(Regs));
+ for(i = 0; i < nrules; 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;
+ }
+ }
+}
+
+static void
+focusnext(const char *arg) {
+ Client *c;
+
+ if(!sel)
+ return;
+ for(c = sel->next; c && !isvisible(c); c = c->next);
+ if(!c)
+ for(c = clients; c && !isvisible(c); c = c->next);
+ if(c) {
+ focus(c);
+ restack();
+ }
+}
+
+static void
+focusprev(const char *arg) {
+ Client *c;
+
+ if(!sel)
+ return;
+ for(c = sel->prev; c && !isvisible(c); c = c->prev);
+ if(!c) {
+ for(c = clients; c && c->next; c = c->next);
+ for(; c && !isvisible(c); c = c->prev);
+ }
+ if(c) {
+ focus(c);
+ restack();
+ }
+}
+
+static void
+initlayouts(void) {
+ unsigned int i, w;
+
+ nlayouts = sizeof layouts / sizeof layouts[0];
+ for(blw = i = 0; i < nlayouts; i++) {
+ w = textw(layouts[i].symbol);
+ if(w > blw)
+ blw = w;
+ }
+}
+
+static Bool
+isfloating(void) {
+ return layouts[ltidx].arrange == floating;
+}
+
+static Bool
+isvisible(Client *c) {
+ unsigned int i;
+
+ for(i = 0; i < ntags; i++)
+ if(c->tags[i] && seltags[i])
+ return True;
+ return False;
+}
+
+static void
+restack(void) {
+ Client *c;
+ XEvent ev;
+ XWindowChanges wc;
+
+ drawbar();
+ if(!sel)
+ return;
+ if(sel->isfloating || isfloating())
+ XRaiseWindow(dpy, sel->win);
+ if(!isfloating()) {
+ wc.stack_mode = Below;
+ wc.sibling = barwin;
+ if(!sel->isfloating) {
+ XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
+ wc.sibling = sel->win;
+ }
+ for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
+ if(c == sel)
+ continue;
+ XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
+ wc.sibling = c->win;
+ }
+ }
+ XSync(dpy, False);
+ while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+static void
+setlayout(const char *arg) {
+ unsigned int i;
+
+ if(!arg) {
+ if(++ltidx == nlayouts)
+ ltidx = 0;;
+ }
+ else {
+ for(i = 0; i < nlayouts; i++)
+ if(!strcmp(arg, layouts[i].symbol))
+ break;
+ if(i == nlayouts)
+ return;
+ ltidx = i;
+ }
+ if(sel)
+ arrange();
+ else
+ drawbar();
+}
+
+static void
+tag(const char *arg) {
+ unsigned int i;
+
+ if(!sel)
+ return;
+ for(i = 0; i < ntags; i++)
+ sel->tags[i] = arg == NULL;
+ i = idxoftag(arg);
+ if(i >= 0 && i < ntags)
+ sel->tags[i] = True;
+ arrange();
+}
+
+static 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();
+}
+
+static void
+togglemax(const char *arg) {
+ XEvent ev;
+
+ if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed)
+ return;
+ if((sel->ismax = !sel->ismax)) {
+ sel->rx = sel->x;
+ sel->ry = sel->y;
+ sel->rw = sel->w;
+ sel->rh = sel->h;
+ resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
+ }
+ else
+ resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
+ drawbar();
+ while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+static 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 < ntags && !sel->tags[j]; j++);
+ if(j == ntags)
+ sel->tags[i] = True;
+ arrange();
+}
+
+static void
+toggleview(const char *arg) {
+ unsigned int i, j;
+
+ i = idxoftag(arg);
+ seltags[i] = !seltags[i];
+ for(j = 0; j < ntags && !seltags[j]; j++);
+ if(j == ntags)
+ seltags[i] = True; /* cannot toggle last view */
+ arrange();
+}
+
+static void
+view(const char *arg) {
+ unsigned int i;
+
+ for(i = 0; i < ntags; i++)
+ seltags[i] = arg == NULL;
+ i = idxoftag(arg);
+ if(i >= 0 && i < ntags)
+ seltags[i] = True;
+ arrange();
+}
+
+static void
+cleanup(void) {
+ close(STDIN_FILENO);
+ while(stack) {
+ unban(stack);
+ unmanage(stack);
+ }
+ if(dc.font.set)
+ XFreeFontSet(dpy, dc.font.set);
+ else
+ XFreeFont(dpy, dc.font.xfont);
+ XUngrabKey(dpy, AnyKey, AnyModifier, root);
+ XFreePixmap(dpy, dc.drawable);
+ XFreeGC(dpy, dc.gc);
+ XDestroyWindow(dpy, barwin);
+ XFreeCursor(dpy, cursor[CurNormal]);
+ XFreeCursor(dpy, cursor[CurResize]);
+ XFreeCursor(dpy, cursor[CurMove]);
+ XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+ XSync(dpy, False);
+ free(seltags);
+}
+
+static 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;
+}
+
+static void
+scan(void) {
+ unsigned int i, num;
+ Window *wins, d1, d2;
+ XWindowAttributes wa;
+
+ wins = NULL;
+ if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
+ for(i = 0; i < num; i++) {
+ if(!XGetWindowAttributes(dpy, wins[i], &wa)
+ || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
+ continue;
+ if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
+ manage(wins[i], &wa);
+ }
+ for(i = 0; i < num; i++) { /* now the transients */
+ if(!XGetWindowAttributes(dpy, wins[i], &wa))
+ continue;
+ if(XGetTransientForHint(dpy, wins[i], &d1)
+ && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
+ manage(wins[i], &wa);
+ }
+ }
+ if(wins)
+ XFree(wins);
+}
+
+static void
+setup(void) {
+ int i, j;
+ unsigned int mask;
+ Window w;
+ XModifierKeymap *modmap;
+ XSetWindowAttributes wa;
+
+ /* 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);
+ XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
+ PropModeReplace, (unsigned char *) netatom, NetLast);
+ /* init cursors */
+ cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
+ cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
+ cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
+ /* 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);
+ /* select for events */
+ wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
+ | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
+ wa.cursor = cursor[CurNormal];
+ XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
+ XSelectInput(dpy, root, wa.event_mask);
+ grabkeys();
+ compileregs();
+ for(ntags = 0; tags[ntags]; ntags++);
+ seltags = emallocz(sizeof(Bool) * ntags);
+ seltags[0] = True;
+ /* geometry */
+ sx = sy = 0;
+ sw = DisplayWidth(dpy, screen);
+ sh = DisplayHeight(dpy, screen);
+ initstyle();
+ initlayouts();
+ initbar();
+ /* multihead support */
+ selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
+}
+
+/*
+ * Startup Error handler to check if another window manager
+ * is already running.
+ */
+static int
+xerrorstart(Display *dsply, XErrorEvent *ee) {
+ otherwm = True;
+ return -1;
+}
+
+static 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;
+}
+
+static void
+quit(const char *arg) {
+ readin = running = False;
+}
+
+/* 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.
+ */
+static 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 */
+}
+
+static void
+arrange(void) {
+ Client *c;
+
+ for(c = clients; c; c = c->next)
+ if(isvisible(c))
+ unban(c);
+ else
+ ban(c);
+ layouts[ltidx].arrange();
+ focus(NULL);
+ restack();
+}
+
+static void
+attach(Client *c) {
+ if(clients)
+ clients->prev = c;
+ c->next = clients;
+ clients = c;
+}
+
+static 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;
+}
+
+static void
+focus(Client *c) {
+ if((!c && selscreen) || (c && !isvisible(c)))
+ for(c = stack; c && !isvisible(c); c = c->snext);
+ if(sel && sel != c) {
+ grabbuttons(sel, False);
+ XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
+ }
+ if(c) {
+ detachstack(c);
+ attachstack(c);
+ grabbuttons(c, True);
+ }
+ sel = c;
+ drawbar();
+ if(!selscreen)
+ return;
+ if(c) {
+ XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
+ XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+ }
+ else
+ XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+}
+
+static Bool
+isarrange(void (*func)())
+{
+ return func == layouts[ltidx].arrange;
+}
+
+static Client *
+nexttiled(Client *c) {
+ for(; c && (c->isfloating || !isvisible(c)); c = c->next);
+ return c;
+}
+
+static void
+setmwfact(const char *arg) {
+ double delta;
+
+ if(!isarrange(tile))
+ return;
+ /* arg handling, manipulate mwfact */
+ if(arg == NULL)
+ mwfact = MWFACT;
+ else if(1 == sscanf(arg, "%lf", &delta)) {
+ if(arg[0] != '+' && arg[0] != '-')
+ mwfact = delta;
+ else
+ mwfact += delta;
+ if(mwfact < 0.1)
+ mwfact = 0.1;
+ else if(mwfact > 0.9)
+ mwfact = 0.9;
+ }
+ arrange();
+}
+
+static void
+tile(void) {
+ unsigned int i, n, nx, ny, nw, nh, mw, th;
+ Client *c;
+
+ for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
+ n++;
+
+ /* window geoms */
+ mw = (n == 1) ? waw : mwfact * waw;
+ th = (n > 1) ? wah / (n - 1) : 0;
+ if(n > 1 && th < bh)
+ th = wah;
+
+ nx = wax;
+ ny = way;
+ for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) {
+ c->ismax = False;
+ if(i == 0) { /* master */
+ nw = mw - 2 * c->border;
+ nh = wah - 2 * c->border;
+ }
+ else { /* tile window */
+ if(i == 1) {
+ ny = way;
+ nx += mw;
+ }
+ nw = waw - mw - 2 * c->border;
+ if(i + 1 == n) /* remainder */
+ nh = (way + wah) - ny - 2 * c->border;
+ else
+ nh = th - 2 * c->border;
+ }
+ resize(c, nx, ny, nw, nh, RESIZEHINTS);
+ if(n > 1 && th != wah)
+ ny += nh + 2 * c->border;
+ }
+}
+
+static void
+zoom(const char *arg) {
+ Client *c;
+
+ if(!sel || !isarrange(tile) || sel->isfloating)
+ return;
+ if((c = sel) == nexttiled(clients))
+ if(!(c = nexttiled(c->next)))
+ return;
+ detach(c);
+ attach(c);
+ focus(c);
+ arrange();
+}
+
+int
+main(int argc, char *argv[]) {
+ char *p;
+ int r, xfd;
+ fd_set rd;
+ XEvent ev;
+
+ if(argc == 2 && !strcmp("-v", argv[1]))
+ eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
+ else if(argc != 1)
+ eprint("usage: dwm [-v]\n");
+ setlocale(LC_CTYPE, "");
+ if(!(dpy = XOpenDisplay(0)))
+ eprint("dwm: cannot open display\n");
+ xfd = ConnectionNumber(dpy);
+ screen = DefaultScreen(dpy);
+ root = RootWindow(dpy, screen);
+ otherwm = False;
+ XSetErrorHandler(xerrorstart);
+ /* this causes an error if some other window manager is running */
+ XSelectInput(dpy, root, 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);
+ setup();
+ drawbar();
+ scan();
+
+ /* main event loop, also reads status text from stdin */
+ XSync(dpy, False);
+ readin = True;
+ 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, stext, sizeof stext - 1)) {
+ case -1:
+ strncpy(stext, strerror(errno), sizeof stext - 1);
+ stext[sizeof stext - 1] = '\0';
+ readin = False;
+ break;
+ case 0:
+ strncpy(stext, "EOF", 4);
+ readin = False;
+ break;
+ default:
+ for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
+ for(; p >= stext && *p != '\n'; --p);
+ if(p > stext)
+ strncpy(stext, p + 1, sizeof stext);
+ }
+ drawbar();
+ }
+ while(XPending(dpy)) {
+ XNextEvent(dpy, &ev);
+ if(handler[ev.type])
+ (handler[ev.type])(&ev); /* call handler */
+ }
+ }
+ cleanup();
+ XCloseDisplay(dpy);
+ return 0;
+}
+++ /dev/null
-/* 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. For each client dwm
- * creates a small title window, which is resized whenever the (_NET_)WM_NAME
- * properties are updated or the client is moved/resized.
- *
- * Keys and tagging rules are organized as arrays and defined in the config.h
- * file. These arrays are kept static in event.o and tag.o respectively,
- * because no other part of dwm needs access to them. The current layout is
- * represented by the lt pointer.
- *
- * To understand everything else, start reading main.c:main().
- */
-
-#include "config.h"
-#include <X11/Xlib.h>
-
-/* mask shorthands, used in event.c and client.c */
-#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
-
-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 */
-
-typedef struct Client Client;
-struct Client {
- char name[256];
- int x, y, w, h;
- int rx, ry, rw, rh; /* revert geometry */
- int basew, baseh, incw, inch, maxw, maxh, minw, minh;
- int minax, maxax, minay, maxay;
- long flags;
- unsigned int border, oldborder;
- Bool isbanned, isfixed, ismax, isfloating;
- Bool *tags;
- Client *next;
- Client *prev;
- Client *snext;
- Window win;
-};
-
-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 */
-
-extern const char *tags[]; /* all tags */
-extern char stext[256]; /* status text */
-extern int screen, sx, sy, sw, sh; /* screen geometry */
-extern int wax, way, wah, waw; /* windowarea geometry */
-extern unsigned int bh, blw, bpos; /* bar height, bar layout label width, bar position */
-extern unsigned int ntags, numlockmask; /* number of tags, numlock mask */
-extern void (*handler[LASTEvent])(XEvent *); /* event handler */
-extern Atom wmatom[WMLast], netatom[NetLast];
-extern Bool selscreen, *seltags; /* seltags is array of Bool */
-extern Client *clients, *sel, *stack; /* global client list and stack */
-extern Cursor cursor[CurLast];
-extern DC dc; /* global draw context */
-extern Display *dpy;
-extern Window root, barwin;
-
-/* bar.c */
-void drawbar(void); /* draw the bar */
-void initbar(void); /* initializes the bar */
-void initstyle(void); /* initializes colors and font */
-unsigned int textw(const char *text); /* return the width of text in px*/
-void togglebar(const char *arg); /* shows/hides the bar */
-void updatebarpos(void); /* updates the bar position */
-
-/* client.c */
-void attach(Client *c); /* attaches c to global client list */
-void ban(Client *c); /* bans c */
-void configure(Client *c); /* send synthetic configure event */
-void detach(Client *c); /* detaches c from global client list */
-void focus(Client *c); /* focus c if visible && !NULL, or focus top visible */
-void killclient(const char *arg); /* kill sel nicely */
-void manage(Window w, XWindowAttributes *wa); /* manage new client */
-void resize(Client *c, int x, int y,
- int w, int h, Bool sizehints); /* resize with given coordinates c*/
-void unban(Client *c); /* unbans c */
-void unmanage(Client *c); /* unmanage c */
-void updatesizehints(Client *c); /* update the size hint variables of c */
-void updatetitle(Client *c); /* update the name of c */
-
-/* event.c */
-void grabkeys(void); /* grab all keys defined in config.h */
-
-/* main.c */
-Bool gettextprop(Window w, Atom atom,
- char *text, unsigned int size); /* return text property, UTF-8 compliant */
-void quit(const char *arg); /* quit dwm nicely */
-int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */
-
-/* screen.c */
-void applyrules(Client *c); /* applies rules to c */
-void arrange(void); /* arranges all windows depending on the layout in use */
-void compileregs(void); /* initialize regexps of rules defined in config.h */
-void focusnext(const char *arg); /* focuses next visible client */
-void focusprev(const char *arg); /* focuses prev visible client */
-const char *getsymbol(void); /* returns symbol of enabled layout */
-void initlayouts(void); /* initialize layout array */
-Bool isarrange(void (*func)()); /* returns True if func is the layout function in use */
-Bool isfloating(void); /* returns True if floating layout is enabled */
-Bool isvisible(Client *c); /* returns True if client is visible */
-Client *nexttiled(Client *c); /* returns tiled successor of c */
-void restack(void); /* restores z layers of all clients */
-void setlayout(const char *arg); /* sets layout, NULL means next layout */
-void tag(const char *arg); /* tags sel with arg's index */
-void togglefloating(const char *arg); /* toggles sel between floating/tiled state */
-void togglemax(const char *arg); /* toggles maximization of floating client */
-void toggletag(const char *arg); /* toggles sel tags with arg's index */
-void toggleview(const char *arg); /* toggles the tag with arg's index (in)visible */
-void view(const char *arg); /* views the tag with arg's index */
-
-/* util.c */
-void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */
-void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */
-void spawn(const char *arg); /* forks a new subprocess with arg's cmd */
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-#include "dwm.h"
-#include <stdlib.h>
-#include <X11/keysym.h>
-#include <X11/Xatom.h>
-#include <X11/Xutil.h>
-
-/* static */
-
-typedef struct {
- unsigned long mod;
- KeySym keysym;
- void (*func)(const char *arg);
- const char *arg;
-} Key;
-
-#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
-#define MOUSEMASK (BUTTONMASK | PointerMotionMask)
-
-static Client *
-getclient(Window w) {
- Client *c;
-
- for(c = clients; c && c->win != w; c = c->next);
- return c;
-}
-
-static 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, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
- None, cursor[CurMove], CurrentTime) != GrabSuccess)
- return;
- c->ismax = False;
- XQueryPointer(dpy, 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);
- if(abs(wax + nx) < SNAP)
- nx = wax;
- else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
- nx = wax + waw - c->w - 2 * c->border;
- if(abs(way - ny) < SNAP)
- ny = way;
- else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
- ny = way + wah - c->h - 2 * c->border;
- resize(c, nx, ny, c->w, c->h, False);
- break;
- }
- }
-}
-
-static void
-resizemouse(Client *c) {
- int ocx, ocy;
- int nw, nh;
- XEvent ev;
-
- ocx = c->x;
- ocy = c->y;
- if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
- None, cursor[CurResize], CurrentTime) != GrabSuccess)
- return;
- c->ismax = False;
- 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;
- }
- }
-}
-
-static void
-buttonpress(XEvent *e) {
- unsigned int i, x;
- Client *c;
- XButtonPressedEvent *ev = &e->xbutton;
-
- if(barwin == ev->window) {
- x = 0;
- for(i = 0; i < ntags; i++) {
- x += textw(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 && (isfloating() || c->isfloating)) {
- restack();
- movemouse(c);
- }
- else if(ev->button == Button2)
- zoom(NULL);
- else if(ev->button == Button3
- && (isfloating() || c->isfloating) && !c->isfixed)
- {
- restack();
- resizemouse(c);
- }
- }
-}
-
-static void
-configurerequest(XEvent *e) {
- Client *c;
- XConfigureRequestEvent *ev = &e->xconfigurerequest;
- XWindowChanges wc;
-
- if((c = getclient(ev->window))) {
- c->ismax = False;
- if(ev->value_mask & CWBorderWidth)
- c->border = ev->border_width;
- if(c->isfixed || c->isfloating || isfloating()) {
- if(ev->value_mask & CWX)
- c->x = ev->x;
- if(ev->value_mask & CWY)
- c->y = ev->y;
- if(ev->value_mask & CWWidth)
- c->w = ev->width;
- if(ev->value_mask & CWHeight)
- c->h = ev->height;
- if((c->x + c->w) > sw && c->isfloating)
- c->x = sw / 2 - c->w / 2; /* center in x direction */
- if((c->y + c->h) > sh && c->isfloating)
- c->y = 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);
-}
-
-static void
-configurenotify(XEvent *e) {
- XConfigureEvent *ev = &e->xconfigure;
-
- if (ev->window == root && (ev->width != sw || ev->height != sh)) {
- sw = ev->width;
- sh = ev->height;
- XFreePixmap(dpy, dc.drawable);
- dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
- XResizeWindow(dpy, barwin, sw, bh);
- updatebarpos();
- arrange();
- }
-}
-
-static void
-destroynotify(XEvent *e) {
- Client *c;
- XDestroyWindowEvent *ev = &e->xdestroywindow;
-
- if((c = getclient(ev->window)))
- unmanage(c);
-}
-
-static void
-enternotify(XEvent *e) {
- Client *c;
- XCrossingEvent *ev = &e->xcrossing;
-
- if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
- return;
- if((c = getclient(ev->window)))
- focus(c);
- else if(ev->window == root) {
- selscreen = True;
- focus(NULL);
- }
-}
-
-static void
-expose(XEvent *e) {
- XExposeEvent *ev = &e->xexpose;
-
- if(ev->count == 0) {
- if(barwin == ev->window)
- drawbar();
- }
-}
-
-static void
-keypress(XEvent *e) {
- KEYS
- unsigned int len = sizeof keys / sizeof keys[0];
- unsigned int i;
- KeySym keysym;
- XKeyEvent *ev = &e->xkey;
-
- keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
- for(i = 0; i < len; i++)
- if(keysym == keys[i].keysym
- && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
- {
- if(keys[i].func)
- keys[i].func(keys[i].arg);
- }
-}
-
-static void
-leavenotify(XEvent *e) {
- XCrossingEvent *ev = &e->xcrossing;
-
- if((ev->window == root) && !ev->same_screen) {
- selscreen = False;
- focus(NULL);
- }
-}
-
-static void
-mappingnotify(XEvent *e) {
- XMappingEvent *ev = &e->xmapping;
-
- XRefreshKeyboardMapping(ev);
- if(ev->request == MappingKeyboard)
- grabkeys();
-}
-
-static 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);
-}
-
-static 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();
- }
- }
-}
-
-static void
-unmapnotify(XEvent *e) {
- Client *c;
- XUnmapEvent *ev = &e->xunmap;
-
- if((c = getclient(ev->window)))
- unmanage(c);
-}
-
-/* extern */
-
-void (*handler[LASTEvent]) (XEvent *) = {
- [ButtonPress] = buttonpress,
- [ConfigureRequest] = configurerequest,
- [ConfigureNotify] = configurenotify,
- [DestroyNotify] = destroynotify,
- [EnterNotify] = enternotify,
- [LeaveNotify] = leavenotify,
- [Expose] = expose,
- [KeyPress] = keypress,
- [MappingNotify] = mappingnotify,
- [MapRequest] = maprequest,
- [PropertyNotify] = propertynotify,
- [UnmapNotify] = unmapnotify
-};
-
-void
-grabkeys(void) {
- KEYS
- unsigned int len = sizeof keys / sizeof keys[0];
- unsigned int i;
- KeyCode code;
-
- XUngrabKey(dpy, AnyKey, AnyModifier, root);
- for(i = 0; i < len; i++) {
- code = XKeysymToKeycode(dpy, keys[i].keysym);
- XGrabKey(dpy, code, keys[i].mod, root, True,
- GrabModeAsync, GrabModeAsync);
- XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
- GrabModeAsync, GrabModeAsync);
- XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
- GrabModeAsync, GrabModeAsync);
- XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
- GrabModeAsync, GrabModeAsync);
- }
-}
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-#include "dwm.h"
-#include <errno.h>
-#include <locale.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/select.h>
-#include <X11/cursorfont.h>
-#include <X11/keysym.h>
-#include <X11/Xatom.h>
-#include <X11/Xproto.h>
-#include <X11/Xutil.h>
-
-/* extern */
-
-char stext[256];
-int screen, sx, sy, sw, sh, wax, way, waw, wah;
-unsigned int ntags;
-unsigned int numlockmask = 0;
-Atom wmatom[WMLast], netatom[NetLast];
-Bool *seltags;
-Bool selscreen = True;
-Client *clients = NULL;
-Client *sel = NULL;
-Client *stack = NULL;
-Cursor cursor[CurLast];
-Display *dpy;
-Window root;
-
-/* static */
-
-static int (*xerrorxlib)(Display *, XErrorEvent *);
-static Bool otherwm, readin;
-static Bool running = True;
-
-static void
-cleanup(void) {
- close(STDIN_FILENO);
- while(stack) {
- unban(stack);
- unmanage(stack);
- }
- if(dc.font.set)
- XFreeFontSet(dpy, dc.font.set);
- else
- XFreeFont(dpy, dc.font.xfont);
- XUngrabKey(dpy, AnyKey, AnyModifier, root);
- XFreePixmap(dpy, dc.drawable);
- XFreeGC(dpy, dc.gc);
- XDestroyWindow(dpy, barwin);
- XFreeCursor(dpy, cursor[CurNormal]);
- XFreeCursor(dpy, cursor[CurResize]);
- XFreeCursor(dpy, cursor[CurMove]);
- XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
- XSync(dpy, False);
- free(seltags);
-}
-
-static 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;
-}
-
-static void
-scan(void) {
- unsigned int i, num;
- Window *wins, d1, d2;
- XWindowAttributes wa;
-
- wins = NULL;
- if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
- for(i = 0; i < num; i++) {
- if(!XGetWindowAttributes(dpy, wins[i], &wa)
- || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
- continue;
- if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
- manage(wins[i], &wa);
- }
- for(i = 0; i < num; i++) { /* now the transients */
- if(!XGetWindowAttributes(dpy, wins[i], &wa))
- continue;
- if(XGetTransientForHint(dpy, wins[i], &d1)
- && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
- manage(wins[i], &wa);
- }
- }
- if(wins)
- XFree(wins);
-}
-
-static void
-setup(void) {
- int i, j;
- unsigned int mask;
- Window w;
- XModifierKeymap *modmap;
- XSetWindowAttributes wa;
-
- /* 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);
- XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
- PropModeReplace, (unsigned char *) netatom, NetLast);
- /* init cursors */
- cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
- cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
- cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
- /* 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);
- /* select for events */
- wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
- | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
- wa.cursor = cursor[CurNormal];
- XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
- XSelectInput(dpy, root, wa.event_mask);
- grabkeys();
- compileregs();
- for(ntags = 0; tags[ntags]; ntags++);
- seltags = emallocz(sizeof(Bool) * ntags);
- seltags[0] = True;
- /* geometry */
- sx = sy = 0;
- sw = DisplayWidth(dpy, screen);
- sh = DisplayHeight(dpy, screen);
- initstyle();
- initlayouts();
- initbar();
- /* multihead support */
- selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
-}
-
-/*
- * Startup Error handler to check if another window manager
- * is already running.
- */
-static int
-xerrorstart(Display *dsply, XErrorEvent *ee) {
- otherwm = True;
- return -1;
-}
-
-/* extern */
-
-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
-quit(const char *arg) {
- readin = running = False;
-}
-
-/* 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
-main(int argc, char *argv[]) {
- char *p;
- int r, xfd;
- fd_set rd;
- XEvent ev;
-
- if(argc == 2 && !strcmp("-v", argv[1]))
- eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
- else if(argc != 1)
- eprint("usage: dwm [-v]\n");
- setlocale(LC_CTYPE, "");
- if(!(dpy = XOpenDisplay(0)))
- eprint("dwm: cannot open display\n");
- xfd = ConnectionNumber(dpy);
- screen = DefaultScreen(dpy);
- root = RootWindow(dpy, screen);
- otherwm = False;
- XSetErrorHandler(xerrorstart);
- /* this causes an error if some other window manager is running */
- XSelectInput(dpy, root, 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);
- setup();
- drawbar();
- scan();
-
- /* main event loop, also reads status text from stdin */
- XSync(dpy, False);
- readin = True;
- 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, stext, sizeof stext - 1)) {
- case -1:
- strncpy(stext, strerror(errno), sizeof stext - 1);
- stext[sizeof stext - 1] = '\0';
- readin = False;
- break;
- case 0:
- strncpy(stext, "EOF", 4);
- readin = False;
- break;
- default:
- for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
- for(; p >= stext && *p != '\n'; --p);
- if(p > stext)
- strncpy(stext, p + 1, sizeof stext);
- }
- drawbar();
- }
- while(XPending(dpy)) {
- XNextEvent(dpy, &ev);
- if(handler[ev.type])
- (handler[ev.type])(&ev); /* call handler */
- }
- }
- cleanup();
- XCloseDisplay(dpy);
- return 0;
-}
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-#include "dwm.h"
-#include <regex.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <X11/Xutil.h>
-
-/* static */
-
-typedef struct {
- const char *symbol;
- void (*arrange)(void);
-} Layout;
-
-typedef struct {
- const char *prop;
- const char *tags;
- Bool isfloating;
-} Rule;
-
-typedef struct {
- regex_t *propregex;
- regex_t *tagregex;
-} Regs;
-
-TAGS
-RULES
-
-static unsigned int nrules = 0;
-static unsigned int nlayouts = 0;
-static unsigned int ltidx = 0; /* default */
-static Regs *regs = NULL;
-
-static unsigned int
-idxoftag(const char *tag) {
- unsigned int i;
-
- for(i = 0; i < ntags; i++)
- if(tags[i] == tag)
- return i;
- return 0;
-}
-
-static void
-floating(void) { /* default floating layout */
- Client *c;
-
- for(c = clients; c; c = c->next)
- if(isvisible(c))
- resize(c, c->x, c->y, c->w, c->h, True);
-}
-
-LAYOUTS
-
-/* extern */
-
-unsigned int blw = 0;
-
-void
-applyrules(Client *c) {
- static char buf[512];
- unsigned int i, j;
- regmatch_t tmp;
- Bool matched = 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 < nrules; i++)
- if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
- c->isfloating = rules[i].isfloating;
- for(j = 0; regs[i].tagregex && j < ntags; j++) {
- if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
- matched = True;
- c->tags[j] = True;
- }
- }
- }
- if(ch.res_class)
- XFree(ch.res_class);
- if(ch.res_name)
- XFree(ch.res_name);
- if(!matched)
- for(i = 0; i < ntags; i++)
- c->tags[i] = seltags[i];
-}
-
-void
-arrange(void) {
- Client *c;
-
- for(c = clients; c; c = c->next)
- if(isvisible(c))
- unban(c);
- else
- ban(c);
- layouts[ltidx].arrange();
- focus(NULL);
- restack();
-}
-
-void
-compileregs(void) {
- unsigned int i;
- regex_t *reg;
-
- if(regs)
- return;
- nrules = sizeof rules / sizeof rules[0];
- regs = emallocz(nrules * sizeof(Regs));
- for(i = 0; i < nrules; 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
-focusnext(const char *arg) {
- Client *c;
-
- if(!sel)
- return;
- for(c = sel->next; c && !isvisible(c); c = c->next);
- if(!c)
- for(c = clients; c && !isvisible(c); c = c->next);
- if(c) {
- focus(c);
- restack();
- }
-}
-
-void
-focusprev(const char *arg) {
- Client *c;
-
- if(!sel)
- return;
- for(c = sel->prev; c && !isvisible(c); c = c->prev);
- if(!c) {
- for(c = clients; c && c->next; c = c->next);
- for(; c && !isvisible(c); c = c->prev);
- }
- if(c) {
- focus(c);
- restack();
- }
-}
-
-const char *
-getsymbol(void)
-{
- return layouts[ltidx].symbol;
-}
-
-void
-initlayouts(void) {
- unsigned int i, w;
-
- nlayouts = sizeof layouts / sizeof layouts[0];
- for(blw = i = 0; i < nlayouts; i++) {
- w = textw(layouts[i].symbol);
- if(w > blw)
- blw = w;
- }
-}
-
-Bool
-isfloating(void) {
- return layouts[ltidx].arrange == floating;
-}
-
-Bool
-isarrange(void (*func)())
-{
- return func == layouts[ltidx].arrange;
-}
-
-Bool
-isvisible(Client *c) {
- unsigned int i;
-
- for(i = 0; i < ntags; i++)
- if(c->tags[i] && seltags[i])
- return True;
- return False;
-}
-
-Client *
-nexttiled(Client *c) {
- for(; c && (c->isfloating || !isvisible(c)); c = c->next);
- return c;
-}
-
-void
-restack(void) {
- Client *c;
- XEvent ev;
- XWindowChanges wc;
-
- drawbar();
- if(!sel)
- return;
- if(sel->isfloating || isfloating())
- XRaiseWindow(dpy, sel->win);
- if(!isfloating()) {
- wc.stack_mode = Below;
- wc.sibling = barwin;
- if(!sel->isfloating) {
- XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
- wc.sibling = sel->win;
- }
- for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
- if(c == sel)
- continue;
- XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
- wc.sibling = c->win;
- }
- }
- XSync(dpy, False);
- while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-}
-
-void
-setlayout(const char *arg) {
- unsigned int i;
-
- if(!arg) {
- if(++ltidx == nlayouts)
- ltidx = 0;;
- }
- else {
- for(i = 0; i < nlayouts; i++)
- if(!strcmp(arg, layouts[i].symbol))
- break;
- if(i == nlayouts)
- return;
- ltidx = i;
- }
- if(sel)
- arrange();
- else
- drawbar();
-}
-
-void
-tag(const char *arg) {
- unsigned int i;
-
- if(!sel)
- return;
- for(i = 0; i < ntags; i++)
- sel->tags[i] = arg == NULL;
- i = idxoftag(arg);
- if(i >= 0 && i < ntags)
- sel->tags[i] = True;
- 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
-togglemax(const char *arg) {
- XEvent ev;
-
- if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed)
- return;
- if((sel->ismax = !sel->ismax)) {
- sel->rx = sel->x;
- sel->ry = sel->y;
- sel->rw = sel->w;
- sel->rh = sel->h;
- resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
- }
- else
- resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
- drawbar();
- while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-}
-
-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 < ntags && !sel->tags[j]; j++);
- if(j == ntags)
- sel->tags[i] = True;
- arrange();
-}
-
-void
-toggleview(const char *arg) {
- unsigned int i, j;
-
- i = idxoftag(arg);
- seltags[i] = !seltags[i];
- for(j = 0; j < ntags && !seltags[j]; j++);
- if(j == ntags)
- seltags[i] = True; /* cannot toggle last view */
- arrange();
-}
-
-void
-view(const char *arg) {
- unsigned int i;
-
- for(i = 0; i < ntags; i++)
- seltags[i] = arg == NULL;
- i = idxoftag(arg);
- if(i >= 0 && i < ntags)
- seltags[i] = True;
- arrange();
-}
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-#include "dwm.h"
-#include <stdio.h>
-
-/* static */
-
-static double mwfact = MWFACT;
-
-/* extern */
-
-void
-setmwfact(const char *arg) {
- double delta;
-
- if(!isarrange(tile))
- return;
- /* arg handling, manipulate mwfact */
- if(arg == NULL)
- mwfact = MWFACT;
- else if(1 == sscanf(arg, "%lf", &delta)) {
- if(arg[0] != '+' && arg[0] != '-')
- mwfact = delta;
- else
- mwfact += delta;
- if(mwfact < 0.1)
- mwfact = 0.1;
- else if(mwfact > 0.9)
- mwfact = 0.9;
- }
- arrange();
-}
-
-void
-tile(void) {
- unsigned int i, n, nx, ny, nw, nh, mw, th;
- Client *c;
-
- for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
- n++;
-
- /* window geoms */
- mw = (n == 1) ? waw : mwfact * waw;
- th = (n > 1) ? wah / (n - 1) : 0;
- if(n > 1 && th < bh)
- th = wah;
-
- nx = wax;
- ny = way;
- for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) {
- c->ismax = False;
- if(i == 0) { /* master */
- nw = mw - 2 * c->border;
- nh = wah - 2 * c->border;
- }
- else { /* tile window */
- if(i == 1) {
- ny = way;
- nx += mw;
- }
- nw = waw - mw - 2 * c->border;
- if(i + 1 == n) /* remainder */
- nh = (way + wah) - ny - 2 * c->border;
- else
- nh = th - 2 * c->border;
- }
- resize(c, nx, ny, nw, nh, RESIZEHINTS);
- if(n > 1 && th != wah)
- ny += nh + 2 * c->border;
- }
-}
-
-void
-zoom(const char *arg) {
- Client *c;
-
- if(!sel || !isarrange(tile) || sel->isfloating)
- return;
- if((c = sel) == nexttiled(clients))
- if(!(c = nexttiled(c->next)))
- return;
- detach(c);
- attach(c);
- focus(c);
- arrange();
-}
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-
-/* tile.c */
-void setmwfact(const char *arg); /* sets master width factor */
-void tile(void); /* arranges all windows tiled */
-void zoom(const char *arg); /* zooms the focused client to master area, arg is ignored */
+++ /dev/null
-/* See LICENSE file for copyright and license details. */
-#include "dwm.h"
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-/* extern */
-
-void *
-emallocz(unsigned int size) {
- void *res = calloc(1, size);
-
- if(!res)
- eprint("fatal: could not malloc() %u bytes\n", size);
- return res;
-}
-
-void
-eprint(const char *errstr, ...) {
- va_list ap;
-
- va_start(ap, errstr);
- vfprintf(stderr, errstr, ap);
- va_end(ap);
- exit(EXIT_FAILURE);
-}
-
-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);
-}
