prepared yet another hotfix release

.hgtags

@@ -0,0 +1,35 @@
+d31b5ad96b0ba7b5b0a30928fcf000428339a577 0.1
+0a6472e2203994bc5738d40a340d26f7ec9d6062 0.2
+7e66082e5092fb0bccd18a3695a0bec52c80fdb2 0.3
+eb3165734f00fe7f7da8aeebaed00e60a57caac9 0.4
+22213b9a2114167ee8ba019a012e27da0422a61a 0.5
+c11f86db4550cac5d0a648a3fe4d6d3b9a4fcf7e 0.6
+3fb41412e2492f66476d92ce8f007a8b48fb1d2a 0.7
+cd15de32e173f8ce97bfe1c9b6607937b59056b4 0.8
+fae61afa861755636c4a1070694209ace8efbb6c 0.9
+bbc98e77ae89a7c9232a5be0835f60ea00d8036e 1.0
+44a55e6e46bf6c231780b09d919977d6f01083de 1.1
+e3179ce2b90451d2807cd53b589d768412b8666b 1.2
+f5f5cbf016a94b48a8fe9c47f0736e96d166d5d4 1.3
+3cff9403766bf83a9fc2a0aef230115d68de2a8e 1.4
+728c9089b079721b43c3347124639a29baa22a97 1.5
+ad3fa2d185426c51fd5deceae809770363f8d33c 1.6
+4dbdb61c8b8ce21dee5c7050a6b103855964ed20 1.7
+d5ad819f2a66a40fa75dd2e44429f3bfc884d07b 1.7.1
+c71952fa3c7ca848ec38a6923b5c6d0e18fff431 1.8
+a5567a0d30112822db2627a04a2e7aa3b6c38148 1.9
+12deea36603da407e3f32640048846a3bd74a9ec 2.0
+a2c465098a3b972bbed00feda9804b6aae1e9531 2.1
+7e92f58754ae6edb3225f26d754bd89c1ff458cf 2.2
+719b37b37b0df829d7cf017ac70e353088fe5849 2.3
+32b246925086910d63147483160281a91a47479f 2.4
+dcbbfabc8ecc5f33a6cc950584de87da1a368045 2.5
+c7f84f23ec5aef29988dcdc4ec22a7352ee8f58e 2.5.1
+5308dd22b6ee8e3218c81d9e7e4125f235bb5778 2.6
+21951c0dfbae5af68ed77821a4d87253ee91803f 2.7
+107719a9ce3bd0c79f9f1f626596eb338a276561 2.8
+3a5910fac3ccb522a98aeeba7af7008530b25092 2.9
+76b58d21ea98257c05565a3b9c850b9b26a32968 3.0
+e1c8bef05e6e48df4f26471ea0712aa43ab9d949 3.1
+4ce65f61f01b055fa6c2901c6d2527ef741aa4bf 3.2
+f2cabc83a18f9b5b548159329ddd4dee904fa31f 3.2.1

LICENSE

@@ -1,6 +1,7 @@
 MIT/X Consortium License
 
-(C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+(C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+(C)opyright MMVI-MMVII Sander van Dijk <a dot h dot vandijk at gmail dot com>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),

Makefile

@@ -1,55 +1,62 @@
 # dwm - dynamic window manager
-#   (C)opyright MMVI Anselm R. Garbe
+#   (C)opyright MMVII Anselm R. Garbe
 
 include config.mk
 
-SRC = bar.c client.c dev.c draw.c event.c main.c util.c
+SRC = client.c draw.c event.c main.c tag.c util.c view.c
 OBJ = ${SRC:.c=.o}
-MAN1 = dwm.1 
-BIN = dwm
 
-all: config dwm
-	@echo finished
+all: options dwm
 
-config:
+options:
 	@echo dwm build options:
-	@echo "LIBS     = ${LIBS}"
 	@echo "CFLAGS   = ${CFLAGS}"
 	@echo "LDFLAGS  = ${LDFLAGS}"
 	@echo "CC       = ${CC}"
+	@echo "LD       = ${LD}"
 
 .c.o:
 	@echo CC $<
 	@${CC} -c ${CFLAGS} $<
 
-${OBJ}: dwm.h
+${OBJ}: dwm.h config.h config.mk
+
+config.h:
+	@echo creating $@ from config.default.h
+	@cp config.default.h $@
 
 dwm: ${OBJ}
 	@echo LD $@
-	@${CC} -o $@ ${OBJ} ${LDFLAGS}
+	@${LD} -o $@ ${OBJ} ${LDFLAGS}
+	@strip $@
 
 clean:
-	rm -f dwm *.o core
+	@echo cleaning
+	@rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
 
 dist: clean
-	mkdir -p dwm-${VERSION}
-	cp -R Makefile README LICENSE config.mk *.h *.c ${MAN1} dwm-${VERSION}
-	tar -cf dwm-${VERSION}.tar dwm-${VERSION}
-	gzip dwm-${VERSION}.tar
-	rm -rf dwm-${VERSION}
+	@echo creating dist tarball
+	@mkdir -p dwm-${VERSION}
+	@cp -R LICENSE Makefile README config.*.h config.mk \
+		dwm.1 dwm.h ${SRC} dwm-${VERSION}
+	@tar -cf dwm-${VERSION}.tar dwm-${VERSION}
+	@gzip dwm-${VERSION}.tar
+	@rm -rf dwm-${VERSION}
 
 install: all
+	@echo installing executable file to ${DESTDIR}${PREFIX}/bin
 	@mkdir -p ${DESTDIR}${PREFIX}/bin
-	@cp -f ${BIN} ${DESTDIR}${PREFIX}/bin
-	@echo installed executable files to ${DESTDIR}${PREFIX}/bin
+	@cp -f dwm ${DESTDIR}${PREFIX}/bin
+	@chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
+	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
 	@mkdir -p ${DESTDIR}${MANPREFIX}/man1
-	@cp -f ${MAN1} ${DESTDIR}${MANPREFIX}/man1
-	@echo installed manual pages to ${DESTDIR}${MANPREFIX}/man1
+	@sed 's/VERSION/${VERSION}/g' < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
+	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1
 
 uninstall:
-	for i in ${BIN}; do \
-		rm -f ${DESTDIR}${PREFIX}/bin/`basename $$i`; \
-	done
-	for i in ${MAN1}; do \
-		rm -f ${DESTDIR}${MANPREFIX}/man1/`basename $$i`; \
-	done
+	@echo removing executable file from ${DESTDIR}${PREFIX}/bin
+	@rm -f ${DESTDIR}${PREFIX}/bin/dwm
+	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
+	@rm -f ${DESTDIR}${MANPREFIX}/man1/dwm.1
+
+.PHONY: all options clean dist install uninstall

README

@@ -1,7 +1,6 @@
 dwm - dynamic window manager
-----------------------------
-
-dwm is an extremly fast, small, and dynamic X11 window manager.
+============================
+dwm is an extremely fast, small, and dynamic window manager for X.
 
 
 Requirements
@@ -11,8 +10,8 @@ In order to build dwm you need the Xlib header files.
 
 Installation
 ------------
-Edit config.mk to match your local setup. dwm is installed into
-the /usr/local namespace by default.
+Edit config.mk to match your local setup (dwm is installed into
+the /usr/local namespace by default).
 
 Afterwards enter the following command to build and install dwm (if
 necessary as root):
@@ -31,10 +30,19 @@ the DISPLAY environment variable is set correctly, e.g.:
 
     DISPLAY=foo.bar:1 exec dwm
 
-This will start dwm on display :1 of the host foo.bar.
+(This will start dwm on display :1 of the host foo.bar.)
+
+In order to display status info in the bar, you can do something
+like this in your .xinitrc:
+
+    while true
+    do
+        echo `date` `uptime | sed 's/.*,//'`
+        sleep 1
+    done | dwm
 
 
 Configuration
 -------------
-The configuration of dwm is done by customizing the wm.h source file. To
-customize the key bindings edit dev.c.
+The configuration of dwm is done by creating a custom config.h
+and (re)compiling the source code.

TODO

@@ -1 +0,0 @@
-- improve mouse based resizals with quadrant approach (then I think we have feature completeness already)

bar.c

@@ -1,46 +0,0 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
-
-#include "dwm.h"
-
-void
-barclick(XButtonPressedEvent *e)
-{
-	int x = 0;
-	Arg a;
-	for(a.i = 0; a.i < TLast; a.i++) {
-		x += textw(tags[a.i]) + dc.font.height;
-		if(e->x < x) {
-			view(&a);
-			return;
-		}
-	}
-}
-
-void
-draw_bar()
-{
-	int i;
-	dc.x = dc.y = 0;
-	dc.w = bw;
-	drawtext(NULL, False, False);
-
-	dc.w = 0;
-	for(i = 0; i < TLast; i++) {
-		dc.x += dc.w;
-		dc.w = textw(tags[i]) + dc.font.height;
-		drawtext(tags[i], i == tsel, True);
-	}
-	if(sel) {
-		dc.x += dc.w;
-		dc.w = textw(sel->name) + dc.font.height;
-		drawtext(sel->name, True, True);
-	}
-	dc.w = textw(stext) + dc.font.height;
-	dc.x = bx + bw - dc.w;
-	drawtext(stext, False, False);
-	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
-	XFlush(dpy);
-}

client.c

@@ -1,275 +1,227 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-
+#include "dwm.h"
 #include <stdlib.h>
-#include <stdio.h>
 #include <string.h>
 #include <X11/Xatom.h>
 #include <X11/Xutil.h>
 
-#include "dwm.h"
+/* static functions */
 
-void (*arrange)(Arg *) = tiling;
-
-static Rule rule[] = {
-	/* class			instance	tags						floating */
-	{ "Firefox-bin",	"Gecko",	{ [Twww] = "www" },			False },
-};
-
-static Client *
-next(Client *c)
-{
-	for(; c && !c->tags[tsel]; c = c->next);
-	return c;
-}
-
-void
-zoom(Arg *arg)
-{
-	Client **l, *c;
-
-	if(!sel)
-		return;
-
-	if(sel == next(clients) && sel->next)  {
-		if((c = next(sel->next)))
-			sel = c;
-	}
-
-	for(l = &clients; *l && *l != sel; l = &(*l)->next);
-	*l = sel->next;
-
-	sel->next = clients; /* pop */
-	clients = sel;
-	arrange(NULL);
-	focus(sel);
-}
-
-void
-max(Arg *arg)
-{
-	if(!sel)
-		return;
-	sel->x = sx;
-	sel->y = sy + bh;
-	sel->w = sw - 2 * sel->border;
-	sel->h = sh - 2 * sel->border - bh;
-	craise(sel);
-	resize(sel, False);
-}
-
-void
-view(Arg *arg)
-{
-	Client *c;
-
-	tsel = arg->i;
-	arrange(NULL);
-
-	for(c = clients; c; c = next(c->next))
-		draw_client(c);
-	draw_bar();
-}
-
-void
-tappend(Arg *arg)
-{
-	if(!sel)
-		return;
-
-	sel->tags[arg->i] = tags[arg->i];
-	arrange(NULL);
-}
-
-void
-ttrunc(Arg *arg)
-{
-	int i;
-	if(!sel)
-		return;
-
-	for(i = 0; i < TLast; i++)
-		sel->tags[i] = NULL;
-	tappend(arg);
+static void
+detachstack(Client *c) {
+	Client **tc;
+	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
+	*tc = c->snext;
 }
 
 static void
-ban_client(Client *c)
-{
-	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
-	XMoveWindow(dpy, c->title, c->tx + 2 * sw, c->ty);
-}
+grabbuttons(Client *c, Bool focused) {
+	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 
-void
-floating(Arg *arg)
-{
-	Client *c;
+	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);
 
-	arrange = floating;
-	for(c = clients; c; c = c->next) {
-		if(c->tags[tsel])
-			resize(c, True);
-		else
-			ban_client(c);
+		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);
 	}
-	if(sel && !sel->tags[tsel]) {
-		if((sel = next(clients))) {
-			craise(sel);
-			focus(sel);
-		}
-	}
-}
-
-void
-tiling(Arg *arg)
-{
-	Client *c;
-	int n, i, w, h;
-
-	w = sw - mw;
-	arrange = tiling;
-	for(n = 0, c = clients; c; c = c->next)
-		if(c->tags[tsel] && !c->floating)
-			n++;
-
-	if(n > 1)
-		h = (sh - bh) / (n - 1);
 	else
-		h = sh - bh;
+		XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+}
 
-	for(i = 0, c = clients; c; c = c->next) {
-		if(c->tags[tsel]) {
-			if(c->floating) {
-				craise(c);
-				resize(c, True);
-				continue;
-			}
-			if(n == 1) {
-				c->x = sx;
-				c->y = sy + bh;
-				c->w = sw - 2 * c->border;
-				c->h = sh - 2 * c->border - bh;
-			}
-			else if(i == 0) {
-				c->x = sx;
-				c->y = sy + bh;
-				c->w = mw - 2 * c->border;
-				c->h = sh - 2 * c->border - bh;
-			}
-			else {
-				c->x = sx + mw;
-				c->y = sy + (i - 1) * h + bh;
-				c->w = w - 2 * c->border;
-				c->h = h - 2 * c->border;
-			}
-			resize(c, False);
-			i++;
-		}
-		else
-			ban_client(c);
-	}
-	if(!sel || (sel && !sel->tags[tsel])) {
-		if((sel = next(clients))) {
-			craise(sel);
-			focus(sel);
-		}
-	}
+static int
+xerrordummy(Display *dsply, XErrorEvent *ee) {
+	return 0;
+}
+
+/* extern functions */
+
+void
+configure(Client *c) {
+	XEvent synev;
+
+	synev.type = ConfigureNotify;
+	synev.xconfigure.display = dpy;
+	synev.xconfigure.event = c->win;
+	synev.xconfigure.window = c->win;
+	synev.xconfigure.x = c->x;
+	synev.xconfigure.y = c->y;
+	synev.xconfigure.width = c->w;
+	synev.xconfigure.height = c->h;
+	synev.xconfigure.border_width = c->border;
+	synev.xconfigure.above = None;
+	XSendEvent(dpy, c->win, True, NoEventMask, &synev);
 }
 
 void
-prevc(Arg *arg)
-{
-	Client *c;
-
-	if(!sel)
+focus(Client *c) {
+	if(c && !isvisible(c))
 		return;
-
-	if((c = sel->revert && sel->revert->tags[tsel] ? sel->revert : NULL)) {
-		craise(c);
-		focus(c);
+	if(sel && sel != c) {
+		grabbuttons(sel, False);
+		XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
 	}
-}
-
-void
-nextc(Arg *arg)
-{
-	Client *c;
-   
-	if(!sel)
-		return;
-
-	if(!(c = next(sel->next)))
-		c = next(clients);
 	if(c) {
-		craise(c);
-		c->revert = sel;
-		focus(c);
+		detachstack(c);
+		c->snext = stack;
+		stack = c;
+		grabbuttons(c, True);
 	}
+	sel = c;
+	drawstatus();
+	if(!selscreen)
+		return;
+	if(c) {
+		XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
+		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+	}
+	else
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+}
+
+Client *
+getclient(Window w) {
+	Client *c;
+
+	for(c = clients; c; c = c->next)
+		if(c->win == w)
+			return c;
+	return NULL;
 }
 
 void
-ckill(Arg *arg)
-{
+killclient(Arg *arg) {
 	if(!sel)
 		return;
-	if(sel->proto & WM_PROTOCOL_DELWIN)
-		send_message(sel->win, wm_atom[WMProtocols], wm_atom[WMDelete]);
+	if(sel->proto & PROTODELWIN)
+		sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
 	else
 		XKillClient(dpy, sel->win);
 }
 
-static void
-resize_title(Client *c)
-{
-	int i;
-
-	c->tw = 0;
-	for(i = 0; i < TLast; i++)
-		if(c->tags[i])
-			c->tw += textw(c->tags[i]) + dc.font.height;
-	c->tw += textw(c->name) + dc.font.height;
-	if(c->tw > c->w)
-		c->tw = c->w + 2;
-	c->tx = c->x + c->w - c->tw + 2;
-	c->ty = c->y;
-	XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
-}
-
 void
-update_name(Client *c)
-{
-	XTextProperty name;
-	int n;
-	char **list = NULL;
+manage(Window w, XWindowAttributes *wa) {
+	Client *c;
+	Window trans;
 
-	name.nitems = 0;
-	c->name[0] = 0;
-	XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
-	if(!name.nitems)
-		XGetWMName(dpy, c->win, &name);
-	if(!name.nitems)
-		return;
-	if(name.encoding == XA_STRING)
-		strncpy(c->name, (char *)name.value, sizeof(c->name));
-	else {
-		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
-				&& n > 0 && *list)
-		{
-			strncpy(c->name, *list, sizeof(c->name));
-			XFreeStringList(list);
-		}
+	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;
+	if(c->w == sw && c->h == sh) {
+		c->border = 0;
+		c->x = sx;
+		c->y = sy;
 	}
-	XFree(name.value);
-	resize_title(c);
+	else {
+		c->border = BORDERPX;
+		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;
+	}
+	updatesizehints(c);
+	c->proto = getproto(c->win);
+	XSelectInput(dpy, c->win,
+		StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+	XGetTransientForHint(dpy, c->win, &trans);
+	grabbuttons(c, False);
+	XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
+	updatetitle(c);
+	settags(c, getclient(trans));
+	if(!c->isfloat)
+		c->isfloat = trans || c->isfixed;
+	if(clients)
+		clients->prev = c;
+	c->next = clients;
+	c->snext = stack;
+	stack = clients = c;
+	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+	XMapWindow(dpy, c->win);
+	if(isvisible(c))
+		focus(c);
+	arrange();
 }
 
 void
-update_size(Client *c)
-{
-	XSizeHints size;
+resize(Client *c, Bool sizehints) {
+	XWindowChanges wc;
+
+	if(c->w <= 0 || c->h <= 0)
+		return;
+	if(sizehints) {
+		if(c->incw)
+			c->w -= (c->w - c->basew) % c->incw;
+		if(c->inch)
+			c->h -= (c->h - c->baseh) % c->inch;
+		if(c->minw && c->w < c->minw)
+			c->w = c->minw;
+		if(c->minh && c->h < c->minh)
+			c->h = c->minh;
+		if(c->maxw && c->w > c->maxw)
+			c->w = c->maxw;
+		if(c->maxh && c->h > c->maxh)
+			c->h = c->maxh;
+	}
+	if(c->w == sw && c->h == sh)
+		c->border = 0;
+	else
+		c->border = BORDERPX;
+	/* offscreen appearance fixes */
+	if(c->x > sw)
+		c->x = sw - c->w - 2 * c->border;
+	if(c->y > sh)
+		c->y = sh - c->h - 2 * c->border;
+	if(c->x + c->w + 2 * c->border < sx)
+		c->x = sx;
+	if(c->y + c->h + 2 * c->border < sy)
+		c->y = sy;
+	wc.x = c->x;
+	wc.y = c->y;
+	wc.width = c->w;
+	wc.height = c->h;
+	wc.border_width = c->border;
+	XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
+	configure(c);
+	XSync(dpy, False);
+}
+
+void
+updatesizehints(Client *c) {
 	long msize;
+	XSizeHints size;
+
 	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
 		size.flags = PSize;
 	c->flags = size.flags;
@@ -297,320 +249,54 @@ update_size(Client *c)
 	}
 	else
 		c->minw = c->minh = 0;
-	if(c->flags & PWinGravity)
-		c->grav = size.win_gravity;
-	else
-		c->grav = NorthWestGravity;
+	c->isfixed = (c->maxw && c->minw && c->maxh && c->minh &&
+				c->maxw == c->minw && c->maxh == c->minh);
 }
 
 void
-craise(Client *c)
-{
-	XRaiseWindow(dpy, c->win);
-	XRaiseWindow(dpy, c->title);
-}
+updatetitle(Client *c) {
+	char **list = NULL;
+	int n;
+	XTextProperty name;
 
-void
-lower(Client *c)
-{
-	XLowerWindow(dpy, c->title);
-	XLowerWindow(dpy, c->win);
-}
-
-void
-focus(Client *c)
-{
-	Client *old = sel;
-	XEvent ev;
-
-	XFlush(dpy);
-	sel = c;
-	if(old && old != c)
-		draw_client(old);
-	draw_client(c);
-	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
-	XFlush(dpy);
-	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-}
-
-static void
-init_tags(Client *c)
-{
-	XClassHint ch;
-	static unsigned int len = rule ? sizeof(rule) / sizeof(rule[0]) : 0;
-	unsigned int i, j;
-	Bool matched = False;
-
-	if(!len) {
-		c->tags[tsel] = tags[tsel];
+	name.nitems = 0;
+	c->name[0] = 0;
+	XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
+	if(!name.nitems)
+		XGetWMName(dpy, c->win, &name);
+	if(!name.nitems)
 		return;
-	}
-
-	if(XGetClassHint(dpy, c->win, &ch)) {
-		if(ch.res_class && ch.res_name) {
-			for(i = 0; i < len; i++)
-				if(!strncmp(rule[i].class, ch.res_class, sizeof(rule[i].class))
-					&& !strncmp(rule[i].instance, ch.res_name, sizeof(rule[i].instance)))
-				{
-					for(j = 0; j < TLast; j++)
-						c->tags[j] = rule[i].tags[j];
-					c->floating = rule[i].floating;
-					matched = True;
-					break;
-				}
-		}
-		if(ch.res_class)
-			XFree(ch.res_class);
-		if(ch.res_name)
-			XFree(ch.res_name);
-	}
-
-	if(!matched)
-		c->tags[tsel] = tags[tsel];
-}
-
-void
-manage(Window w, XWindowAttributes *wa)
-{
-	Client *c, **l;
-	XSetWindowAttributes twa;
-	Window trans;
-
-	c = emallocz(sizeof(Client));
-	c->win = w;
-	c->tx = c->x = wa->x;
-	c->ty = c->y = wa->y;
-	if(c->y < bh)
-		c->ty = c->y += bh;
-	c->tw = c->w = wa->width;
-	c->h = wa->height;
-	c->th = bh;
-	c->border = 1;
-	c->proto = win_proto(c->win);
-	update_size(c);
-	XSelectInput(dpy, c->win,
-			StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
-	XGetTransientForHint(dpy, c->win, &trans);
-	twa.override_redirect = 1;
-	twa.background_pixmap = ParentRelative;
-	twa.event_mask = ExposureMask;
-
-	c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
-			0, DefaultDepth(dpy, screen), CopyFromParent,
-			DefaultVisual(dpy, screen),
-			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
-
-	update_name(c);
-	init_tags(c);
-
-	for(l = &clients; *l; l = &(*l)->next);
-	c->next = *l; /* *l == nil */
-	*l = c;
-
-	XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-
-	if(!c->floating)
-		c->floating = trans
-			|| ((c->maxw == c->minw) && (c->maxh == c->minh));
-
-	arrange(NULL);
-	/* mapping the window now prevents flicker */
-	if(c->tags[tsel]) {
-		XMapRaised(dpy, c->win);
-		XMapRaised(dpy, c->title);
-		focus(c);
-	}
+	if(name.encoding == XA_STRING)
+		strncpy(c->name, (char *)name.value, sizeof c->name);
 	else {
-		ban_client(c);
-		XMapRaised(dpy, c->win);
-		XMapRaised(dpy, c->title);
-	}
-}
-
-void
-gravitate(Client *c, Bool invert)
-{
-	int dx = 0, dy = 0;
-
-	switch(c->grav) {
-	case StaticGravity:
-	case NorthWestGravity:
-	case NorthGravity:
-	case NorthEastGravity:
-		dy = c->border;
-		break;
-	case EastGravity:
-	case CenterGravity:
-	case WestGravity:
-		dy = -(c->h / 2) + c->border;
-		break;
-	case SouthEastGravity:
-	case SouthGravity:
-	case SouthWestGravity:
-		dy = -c->h;
-		break;
-	default:
-		break;
-	}
-
-	switch (c->grav) {
-	case StaticGravity:
-	case NorthWestGravity:
-	case WestGravity:
-	case SouthWestGravity:
-		dx = c->border;
-		break;
-	case NorthGravity:
-	case CenterGravity:
-	case SouthGravity:
-		dx = -(c->w / 2) + c->border;
-		break;
-	case NorthEastGravity:
-	case EastGravity:
-	case SouthEastGravity:
-		dx = -(c->w + c->border);
-		break;
-	default:
-		break;
-	}
-
-	if(invert) {
-		dx = -dx;
-		dy = -dy;
-	}
-	c->x += dx;
-	c->y += dy;
-}
-
-
-void
-resize(Client *c, Bool inc)
-{
-	XConfigureEvent e;
-
-	if(inc) {
-		if(c->incw)
-			c->w -= (c->w - c->basew) % c->incw;
-		if(c->inch)
-			c->h -= (c->h - c->baseh) % c->inch;
-	}
-	if(c->x > sw) /* might happen on restart */
-		c->x = sw - c->w;
-	if(c->y > sh)
-		c->ty = c->y = sh - c->h;
-	if(c->minw && c->w < c->minw)
-		c->w = c->minw;
-	if(c->minh && c->h < c->minh)
-		c->h = c->minh;
-	if(c->maxw && c->w > c->maxw)
-		c->w = c->maxw;
-	if(c->maxh && c->h > c->maxh)
-		c->h = c->maxh;
-	resize_title(c);
-	XSetWindowBorderWidth(dpy, c->win, 1);
-	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
-	e.type = ConfigureNotify;
-	e.event = c->win;
-	e.window = c->win;
-	e.x = c->x;
-	e.y = c->y;
-	e.width = c->w;
-	e.height = c->h;
-	e.border_width = c->border;
-	e.above = None;
-	e.override_redirect = False;
-	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
-	XFlush(dpy);
-}
-
-static int
-dummy_error_handler(Display *dsply, XErrorEvent *err)
-{
-	return 0;
-}
-
-void
-unmanage(Client *c)
-{
-	Client **l;
-
-	XGrabServer(dpy);
-	XSetErrorHandler(dummy_error_handler);
-
-	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
-	XDestroyWindow(dpy, c->title);
-
-	for(l = &clients; *l && *l != c; l = &(*l)->next);
-	*l = c->next;
-	for(l = &clients; *l; l = &(*l)->next)
-		if((*l)->revert == c)
-			(*l)->revert = NULL;
-	if(sel == c)
-		sel = sel->revert ? sel->revert : clients;
-
-	free(c);
-
-	XFlush(dpy);
-	XSetErrorHandler(error_handler);
-	XUngrabServer(dpy);
-	arrange(NULL);
-	if(sel)
-		focus(sel);
-}
-
-Client *
-gettitle(Window w)
-{
-	Client *c;
-	for(c = clients; c; c = c->next)
-		if(c->title == w)
-			return c;
-	return NULL;
-}
-
-Client *
-getclient(Window w)
-{
-	Client *c;
-	for(c = clients; c; c = c->next)
-		if(c->win == w)
-			return c;
-	return NULL;
-}
-
-void
-draw_client(Client *c)
-{
-	int i;
-	if(c == sel) {
-		draw_bar();
-		XUnmapWindow(dpy, c->title);
-		XSetWindowBorder(dpy, c->win, dc.fg);
-		return;
-	}
-
-	XSetWindowBorder(dpy, c->win, dc.bg);
-	XMapWindow(dpy, c->title);
-
-	dc.x = dc.y = 0;
-
-	dc.w = 0;
-	for(i = 0; i < TLast; i++) {
-		if(c->tags[i]) {
-			dc.x += dc.w;
-			dc.w = textw(c->tags[i]) + dc.font.height;
-			drawtext(c->tags[i], False, True);
+		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
+				&& n > 0 && *list)
+		{
+			strncpy(c->name, *list, sizeof c->name);
+			XFreeStringList(list);
 		}
 	}
-	dc.x += dc.w;
-	dc.w = textw(c->name) + dc.font.height;
-	drawtext(c->name, False, True);
-	XCopyArea(dpy, dc.drawable, c->title, dc.gc,
-			0, 0, c->tw, c->th, 0, 0);
-	XFlush(dpy);
+	XFree(name.value);
+}
+
+void
+unmanage(Client *c) {
+	Client *nc;
+
+	/* The server grab construct avoids race conditions. */
+	XGrabServer(dpy);
+	XSetErrorHandler(xerrordummy);
+	detach(c);
+	detachstack(c);
+	if(sel == c) {
+		for(nc = stack; nc && !isvisible(nc); nc = nc->snext);
+		focus(nc);
+	}
+	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+	free(c->tags);
+	free(c);
+	XSync(dpy, False);
+	XSetErrorHandler(xerror);
+	XUngrabServer(dpy);
+	arrange();
 }

config.arg.h

@@ -0,0 +1,93 @@
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#define TAGS \
+const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
+
+#define BORDERPX		1
+#define DEFMODE			dotile		/* dofloat */
+#define FLOATSYMBOL		"><>"
+#define TILESYMBOL		"[]="
+
+#define FONT			"-*-terminus-medium-r-*-*-14-*-*-*-*-*-*-*"
+#define NORMBORDERCOLOR		"#333"
+#define NORMBGCOLOR		"#222"
+#define NORMFGCOLOR		"#ccc"
+#define SELBORDERCOLOR		"#69c"
+#define SELBGCOLOR		"#555"
+#define SELFGCOLOR		"#fff"
+
+#define MASTER			600		/* per thousand */
+#define MODKEY			Mod1Mask
+#define NMASTER			1		/* clients in master area */
+#define SNAP			40		/* pixel */
+
+#define KEYS \
+static Key key[] = { \
+	/* modifier			key		function	argument */ \
+	{ MODKEY|ShiftMask,		XK_Return,	spawn, \
+		{ .cmd = "exec uxterm -bg '#222' -fg '#eee' -cr '#eee' +sb -fn '"FONT"'" } }, \
+	{ MODKEY,			XK_p,		spawn, \
+		{ .cmd = "exe=\"$(lsx `echo $PATH | sed 's/:/ /g'` | sort -u " \
+			" | dmenu -fn '"FONT"' -nb '"NORMBGCOLOR"' -nf '"NORMFGCOLOR"' " \
+			"-sb '"SELBGCOLOR"' -sf '"SELFGCOLOR"')\" && exec $exe" } }, \
+	{ MODKEY,			XK_j,		focusnext,	{ 0 } }, \
+	{ MODKEY,			XK_k,		focusprev,	{ 0 } }, \
+	{ MODKEY,			XK_Return,	zoom,		{ 0 } }, \
+	{ MODKEY,			XK_g,		resizemaster,	{ .i = 15 } }, \
+	{ MODKEY,			XK_s,		resizemaster,	{ .i = -15 } }, \
+	{ MODKEY,			XK_i,		incnmaster,	{ .i = 1 } }, \
+	{ MODKEY,			XK_d,		incnmaster,	{ .i = -1 } }, \
+	{ MODKEY|ShiftMask,		XK_0,		tag,		{ .i = -1 } }, \
+	{ MODKEY|ShiftMask,		XK_1,		tag,		{ .i = 0 } }, \
+	{ MODKEY|ShiftMask,		XK_2,		tag,		{ .i = 1 } }, \
+	{ MODKEY|ShiftMask,		XK_3,		tag,		{ .i = 2 } }, \
+	{ MODKEY|ShiftMask,		XK_4,		tag,		{ .i = 3 } }, \
+	{ MODKEY|ShiftMask,		XK_5,		tag,		{ .i = 4 } }, \
+	{ MODKEY|ShiftMask,		XK_6,		tag,		{ .i = 5 } }, \
+	{ MODKEY|ShiftMask,		XK_7,		tag,		{ .i = 6 } }, \
+	{ MODKEY|ShiftMask,		XK_8,		tag,		{ .i = 7 } }, \
+	{ MODKEY|ShiftMask,		XK_9,		tag,		{ .i = 8 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_1,		toggletag,	{ .i = 0 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_2,		toggletag,	{ .i = 1 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_3,		toggletag,	{ .i = 2 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_4,		toggletag,	{ .i = 3 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_5,		toggletag,	{ .i = 4 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_6,		toggletag,	{ .i = 5 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_7,		toggletag,	{ .i = 6 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_8,		toggletag,	{ .i = 7 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_9,		toggletag,	{ .i = 8 } }, \
+	{ MODKEY|ShiftMask,		XK_c,		killclient,	{ 0 } }, \
+	{ MODKEY,			XK_space,	togglemode,	{ 0 } }, \
+	{ MODKEY|ShiftMask,		XK_space,	togglefloat,	{ 0 } }, \
+	{ MODKEY,			XK_0,		view,		{ .i = -1 } }, \
+	{ MODKEY,			XK_1,		view,		{ .i = 0 } }, \
+	{ MODKEY,			XK_2,		view,		{ .i = 1 } }, \
+	{ MODKEY,			XK_3,		view,		{ .i = 2 } }, \
+	{ MODKEY,			XK_4,		view,		{ .i = 3 } }, \
+	{ MODKEY,			XK_5,		view,		{ .i = 4 } }, \
+	{ MODKEY,			XK_6,		view,		{ .i = 5 } }, \
+	{ MODKEY,			XK_7,		view,		{ .i = 6 } }, \
+	{ MODKEY,			XK_8,		view,		{ .i = 7 } }, \
+	{ MODKEY,			XK_9,		view,		{ .i = 8 } }, \
+	{ MODKEY|ControlMask,		XK_1,		toggleview,	{ .i = 0 } }, \
+	{ MODKEY|ControlMask,		XK_2,		toggleview,	{ .i = 1 } }, \
+	{ MODKEY|ControlMask,		XK_3,		toggleview,	{ .i = 2 } }, \
+	{ MODKEY|ControlMask,		XK_4,		toggleview,	{ .i = 3 } }, \
+	{ MODKEY|ControlMask,		XK_5,		toggleview,	{ .i = 4 } }, \
+	{ MODKEY|ControlMask,		XK_6,		toggleview,	{ .i = 5 } }, \
+	{ MODKEY|ControlMask,		XK_7,		toggleview,	{ .i = 6 } }, \
+	{ MODKEY|ControlMask,		XK_8,		toggleview,	{ .i = 7 } }, \
+	{ MODKEY|ControlMask,		XK_9,		toggleview,	{ .i = 8 } }, \
+	{ MODKEY|ShiftMask,		XK_q,		quit,		{ 0 } }, \
+};
+
+#define RULES \
+static Rule rule[] = { \
+	/* class:instance:title regex	tags regex	isfloat */ \
+	{ "Firefox.*",			"3",		False }, \
+	{ "Gimp.*",			NULL,		True }, \
+	{ "MPlayer.*",			NULL,		True }, \
+	{ "Acroread.*",			NULL,		True }, \
+};

config.default.h

@@ -0,0 +1,87 @@
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#define TAGS \
+const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
+
+#define BORDERPX		1
+#define DEFMODE			dotile		/* dofloat */
+#define FLOATSYMBOL		"><>"
+#define TILESYMBOL		"[]="
+
+#define FONT			"-*-fixed-medium-r-normal-*-13-*-*-*-*-*-*-*"
+#define NORMBORDERCOLOR		"#dddddd"
+#define NORMBGCOLOR		"#eeeeee"
+#define NORMFGCOLOR		"#222222"
+#define SELBORDERCOLOR		"#ff0000"
+#define SELBGCOLOR		"#006699"
+#define SELFGCOLOR		"#ffffff"
+
+#define MASTER			600		/* per thousand */
+#define MODKEY			Mod1Mask
+#define NMASTER			1		/* clients in master area */
+#define SNAP			20		/* pixel */
+
+#define KEYS \
+static Key key[] = { \
+	/* modifier			key		function	argument */ \
+	{ MODKEY|ShiftMask,		XK_Return,	spawn,		{ .cmd = "exec xterm" } }, \
+	{ MODKEY,			XK_Tab,		focusnext,	{ 0 } }, \
+	{ MODKEY|ShiftMask,		XK_Tab,		focusprev,	{ 0 } }, \
+	{ MODKEY,			XK_Return,	zoom,		{ 0 } }, \
+	{ MODKEY,			XK_g,		resizemaster,	{ .i = 15 } }, \
+	{ MODKEY,			XK_s,		resizemaster,	{ .i = -15 } }, \
+	{ MODKEY,			XK_i,		incnmaster,	{ .i = 1 } }, \
+	{ MODKEY,			XK_d,		incnmaster,	{ .i = -1 } }, \
+	{ MODKEY|ShiftMask,		XK_0,		tag,		{ .i = -1 } }, \
+	{ MODKEY|ShiftMask,		XK_1,		tag,		{ .i = 0 } }, \
+	{ MODKEY|ShiftMask,		XK_2,		tag,		{ .i = 1 } }, \
+	{ MODKEY|ShiftMask,		XK_3,		tag,		{ .i = 2 } }, \
+	{ MODKEY|ShiftMask,		XK_4,		tag,		{ .i = 3 } }, \
+	{ MODKEY|ShiftMask,		XK_5,		tag,		{ .i = 4 } }, \
+	{ MODKEY|ShiftMask,		XK_6,		tag,		{ .i = 5 } }, \
+	{ MODKEY|ShiftMask,		XK_7,		tag,		{ .i = 6 } }, \
+	{ MODKEY|ShiftMask,		XK_8,		tag,		{ .i = 7 } }, \
+	{ MODKEY|ShiftMask,		XK_9,		tag,		{ .i = 8 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_1,		toggletag,	{ .i = 0 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_2,		toggletag,	{ .i = 1 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_3,		toggletag,	{ .i = 2 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_4,		toggletag,	{ .i = 3 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_5,		toggletag,	{ .i = 4 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_6,		toggletag,	{ .i = 5 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_7,		toggletag,	{ .i = 6 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_8,		toggletag,	{ .i = 7 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_9,		toggletag,	{ .i = 8 } }, \
+	{ MODKEY|ShiftMask,		XK_c,		killclient,	{ 0 } }, \
+	{ MODKEY,			XK_space,	togglemode,	{ 0 } }, \
+	{ MODKEY|ShiftMask,		XK_space,	togglefloat,	{ 0 } }, \
+	{ MODKEY,			XK_0,		view,		{ .i = -1 } }, \
+	{ MODKEY,			XK_1,		view,		{ .i = 0 } }, \
+	{ MODKEY,			XK_2,		view,		{ .i = 1 } }, \
+	{ MODKEY,			XK_3,		view,		{ .i = 2 } }, \
+	{ MODKEY,			XK_4,		view,		{ .i = 3 } }, \
+	{ MODKEY,			XK_5,		view,		{ .i = 4 } }, \
+	{ MODKEY,			XK_6,		view,		{ .i = 5 } }, \
+	{ MODKEY,			XK_7,		view,		{ .i = 6 } }, \
+	{ MODKEY,			XK_8,		view,		{ .i = 7 } }, \
+	{ MODKEY,			XK_9,		view,		{ .i = 8 } }, \
+	{ MODKEY|ControlMask,		XK_1,		toggleview,	{ .i = 0 } }, \
+	{ MODKEY|ControlMask,		XK_2,		toggleview,	{ .i = 1 } }, \
+	{ MODKEY|ControlMask,		XK_3,		toggleview,	{ .i = 2 } }, \
+	{ MODKEY|ControlMask,		XK_4,		toggleview,	{ .i = 3 } }, \
+	{ MODKEY|ControlMask,		XK_5,		toggleview,	{ .i = 4 } }, \
+	{ MODKEY|ControlMask,		XK_6,		toggleview,	{ .i = 5 } }, \
+	{ MODKEY|ControlMask,		XK_7,		toggleview,	{ .i = 6 } }, \
+	{ MODKEY|ControlMask,		XK_8,		toggleview,	{ .i = 7 } }, \
+	{ MODKEY|ControlMask,		XK_9,		toggleview,	{ .i = 8 } }, \
+	{ MODKEY|ShiftMask,		XK_q,		quit,		{ 0 } }, \
+};
+
+/* Query class:instance:title for regex matching info with following command:
+ * xprop | awk -F '"' '/^WM_CLASS/ { printf("%s:%s:",$4,$2) }; /^WM_NAME/ { printf("%s\n",$2) }' */
+#define RULES \
+static Rule rule[] = { \
+	/* class:instance:title regex	tags regex	isfloat */ \
+	{ "Gimp.*",			NULL,		True }, \
+};

config.mk

@@ -1,31 +1,30 @@
-# Customize to fit your system
+# dwm version
+VERSION = 3.2.2
+
+# Customize below to fit your system
 
 # paths
 PREFIX = /usr/local
-CONFPREFIX = ${PREFIX}/etc
 MANPREFIX = ${PREFIX}/share/man
 
 X11INC = /usr/X11R6/include
 X11LIB = /usr/X11R6/lib
 
-VERSION = 0.1
-
 # includes and libs
-LIBS = -L${PREFIX}/lib -L/usr/lib -lc -L${X11LIB} -lX11
+INCS = -I. -I/usr/include -I${X11INC}
+LIBS = -L/usr/lib -lc -L${X11LIB} -lX11
 
-# Linux/BSD
-CFLAGS = -Os -I. -I${PREFIX}/include -I/usr/include -I${X11INC} \
-	-DVERSION=\"${VERSION}\"
+# flags
+CFLAGS = -Os ${INCS} -DVERSION=\"${VERSION}\"
 LDFLAGS = ${LIBS}
-#CFLAGS = -g -Wall -O2 -I. -I${PREFIX}/include -I/usr/include -I${X11INC} \
-#	-DVERSION=\"${VERSION}\"
+#CFLAGS = -g -Wall -O2 ${INCS} -DVERSION=\"${VERSION}\"
 #LDFLAGS = -g ${LIBS}
 
-
 # Solaris
-#CFLAGS = -fast -xtarget=ultra ${INCLUDES} -DVERSION=\"${VERSION}\"
-#LIBS += -lnsl -lsocket
+#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
+#LDFLAGS = ${LIBS}
+#CFLAGS += -xtarget=ultra
 
-AR = ar cr
+# compiler and linker
 CC = cc
-RANLIB = ranlib
+LD = ${CC}

dev.c

@@ -1,151 +0,0 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
-
-#include "dwm.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <X11/keysym.h>
-
-/********** CUSTOMIZE **********/
-
-const char *term[] = { 
-	"urxvtc", "-tr", "+sb", "-bg", "black", "-fg", "white", "-fn",
-	"-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*",NULL
-};
-const char *browse[] = { "firefox", NULL };
-const char *xlock[] = { "xlock", NULL };
-
-static Key key[] = {
-	/* modifier				key			function	arguments */
-	{ Mod1Mask,				XK_Return,	zoom,		{ 0 } },
-	{ Mod1Mask,				XK_k,		prevc,		{ 0 } },
-	{ Mod1Mask,				XK_j,		nextc,		{ 0 } }, 
-	{ Mod1Mask,				XK_m,		max,		{ 0 } }, 
-	{ Mod1Mask,				XK_0,		view,		{ .i = Tscratch } }, 
-	{ Mod1Mask,				XK_1,		view,		{ .i = Tdev } }, 
-	{ Mod1Mask,				XK_2,		view,		{ .i = Twww } }, 
-	{ Mod1Mask,				XK_3,		view,		{ .i = Twork } }, 
-	{ Mod1Mask,				XK_space,	tiling,		{ 0 } }, 
-	{ Mod1Mask|ShiftMask,	XK_space,	floating,	{ 0 } }, 
-	{ Mod1Mask|ShiftMask,	XK_0,		ttrunc,		{ .i = Tscratch } }, 
-	{ Mod1Mask|ShiftMask,	XK_1,		ttrunc,		{ .i = Tdev } }, 
-	{ Mod1Mask|ShiftMask,	XK_2,		ttrunc,		{ .i = Twww } }, 
-	{ Mod1Mask|ShiftMask,	XK_3,		ttrunc,		{ .i = Twork } }, 
-	{ Mod1Mask|ShiftMask,	XK_c,		ckill,		{ 0 } }, 
-	{ Mod1Mask|ShiftMask,	XK_q,		quit,		{ 0 } },
-	{ Mod1Mask|ShiftMask,	XK_Return,	spawn,		{ .argv = term } },
-	{ Mod1Mask|ShiftMask,	XK_w,		spawn,		{ .argv = browse } },
-	{ Mod1Mask|ShiftMask,	XK_l,		spawn,		{ .argv = xlock } },
-	{ ControlMask,			XK_0,		tappend,	{ .i = Tscratch } }, 
-	{ ControlMask,			XK_1,		tappend,	{ .i = Tdev } }, 
-	{ ControlMask,			XK_2,		tappend,	{ .i = Twww } }, 
-	{ ControlMask,			XK_3,		tappend,	{ .i = Twork } }, 
-};
-
-/********** CUSTOMIZE **********/
-
-void
-update_keys(void)
-{
-	static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
-	unsigned int i;
-	KeyCode code;
-
-	for(i = 0; i < len; i++) {
-		code = XKeysymToKeycode(dpy, key[i].keysym);
-		XUngrabKey(dpy, code, key[i].mod, root);
-		XGrabKey(dpy, code, key[i].mod, root, True, GrabModeAsync, GrabModeAsync);
-	}
-}
-
-void
-keypress(XEvent *e)
-{
-	XKeyEvent *ev = &e->xkey;
-	static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
-	unsigned int i;
-	KeySym keysym;
-
-	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
-	for(i = 0; i < len; i++)
-		if((keysym == key[i].keysym) && (key[i].mod == ev->state)) {
-			if(key[i].func)
-				key[i].func(&key[i].arg);
-			return;
-		}
-}
-
-#define ButtonMask      (ButtonPressMask | ButtonReleaseMask)
-#define MouseMask       (ButtonMask | PointerMotionMask)
-
-void
-mresize(Client *c)
-{
-	XEvent ev;
-	int ocx, ocy;
-
-	ocx = c->x;
-	ocy = c->y;
-	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
-				None, cursor[CurResize], CurrentTime) != GrabSuccess)
-		return;
-	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
-	for(;;) {
-		XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
-		switch(ev.type) {
-		default: break;
-		case Expose:
-			handler[Expose](&ev);
-			break;
-		case MotionNotify:
-			XFlush(dpy);
-			c->w = abs(ocx - ev.xmotion.x);
-			c->h = abs(ocy - ev.xmotion.y);
-			c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
-			c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
-			resize(c, True);
-			break;
-		case ButtonRelease:
-			XUngrabPointer(dpy, CurrentTime);
-			return;
-		}
-	}
-}
-
-void
-mmove(Client *c)
-{
-	XEvent ev;
-	int x1, y1, ocx, ocy, di;
-	unsigned int dui;
-	Window dummy;
-
-	ocx = c->x;
-	ocy = c->y;
-	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
-				None, cursor[CurMove], CurrentTime) != GrabSuccess)
-		return;
-	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
-	for(;;) {
-		XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
-		switch (ev.type) {
-		default: break;
-		case Expose:
-			handler[Expose](&ev);
-			break;
-		case MotionNotify:
-			XFlush(dpy);
-			c->x = ocx + (ev.xmotion.x - x1);
-			c->y = ocy + (ev.xmotion.y - y1);
-			resize(c, False);
-			break;
-		case ButtonRelease:
-			XUngrabPointer(dpy, CurrentTime);
-			return;
-		}
-	}
-}

draw.c

@@ -1,98 +1,26 @@
-/*
- * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMIV-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-
+#include "dwm.h"
 #include <stdio.h>
 #include <string.h>
 
-#include <X11/Xlocale.h>
+/* static */
 
-#include "dwm.h"
-
-static void
-drawborder(void)
+static Bool
+isoccupied(unsigned int t)
 {
-	XPoint points[5];
-	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
-	XSetForeground(dpy, dc.gc, dc.border);
-	points[0].x = dc.x;
-	points[0].y = dc.y;
-	points[1].x = dc.w - 1;
-	points[1].y = 0;
-	points[2].x = 0;
-	points[2].y = dc.h - 1;
-	points[3].x = -(dc.w - 1);
-	points[3].y = 0;
-	points[4].x = 0;
-	points[4].y = -(dc.h - 1);
-	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
+	Client *c;
+	for(c = clients; c; c = c->next)
+		if(c->tags[t])
+			return True;
+	return False;
 }
 
-void
-drawtext(const char *text, Bool invert, Bool border)
-{
-	int x, y, w, h;
-	unsigned int len;
-	static char buf[256];
-	XGCValues gcv;
-	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-
-	XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
-	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
-
-	w = 0;
-	if(border)
-		drawborder();
-
-	if(!text)
-		return;
-
-	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(w > dc.w)
-		return; /* too long */
-
-	gcv.foreground = invert ? dc.bg : dc.fg;
-	gcv.background = invert ? dc.fg : dc.bg;
-	if(dc.font.set) {
-		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
-		XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc,
-				x, y, buf, len);
-	}
-	else {
-		gcv.font = dc.font.xfont->fid;
-		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
-		XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len);
-	}
-}
-
-unsigned long
-initcolor(const char *colstr)
-{
-	XColor color;
-	Colormap cmap = DefaultColormap(dpy, screen);
-
-	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
-	return color.pixel;
-}
-
-unsigned int
-textnw(char *text, unsigned int len)
-{
+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;
@@ -100,20 +28,122 @@ textnw(char *text, unsigned int len)
 	return XTextWidth(dc.font.xfont, text, len);
 }
 
-unsigned int
-textw(char *text)
-{
-	return textnw(text, strlen(text));
+static void
+drawtext(const char *text, unsigned long col[ColLast], Bool filledsquare, Bool emptysquare) {
+	int x, y, w, h;
+	static char buf[256];
+	unsigned int len, olen;
+	XGCValues gcv;
+	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+	XPoint pt[5];
+
+	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 */
+	gcv.foreground = col[ColFG];
+	if(dc.font.set) {
+		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
+		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
+	}
+	else {
+		gcv.font = dc.font.xfont->fid;
+		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
+		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
+	}
+	x = (h + 2) / 4;
+	if(filledsquare) {
+		r.x = dc.x + 1;
+		r.y = dc.y + 1;
+		r.width = r.height = x + 1;
+		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+	}
+	else if(emptysquare) {
+		pt[0].x = dc.x + 1;
+		pt[0].y = dc.y + 1;
+		pt[1].x = x;
+		pt[1].y = 0;
+		pt[2].x = 0;
+		pt[2].y = x;
+		pt[3].x = -x;
+		pt[3].y = 0;
+		pt[4].x = 0;
+		pt[4].y = -x;
+		XDrawLines(dpy, dc.drawable, dc.gc, pt, 5, CoordModePrevious);
+	}
+}
+
+/* extern */
+
+void
+drawstatus(void) {
+	int i, x;
+
+	dc.x = dc.y = 0;
+	for(i = 0; i < ntags; i++) {
+		dc.w = textw(tags[i]);
+		if(seltag[i])
+			drawtext(tags[i], dc.sel, sel && sel->tags[i], isoccupied(i));
+		else
+			drawtext(tags[i], dc.norm, sel && sel->tags[i], isoccupied(i));
+		dc.x += dc.w;
+	}
+	dc.w = bmw;
+	drawtext(arrange == dofloat ? FLOATSYMBOL : TILESYMBOL, dc.norm, False, False);
+	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, False, False);
+	if((dc.w = dc.x - x) > bh) {
+		dc.x = x;
+		drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False, False);
+	}
+	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
+	XSync(dpy, False);
+}
+
+unsigned long
+getcolor(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;
 }
 
 void
-initfont(const char *fontstr)
-{
-	char **missing, *def;
+setfont(const char *fontstr) {
+	char *def, **missing;
 	int i, n;
 
 	missing = NULL;
-	setlocale(LC_ALL, "");
 	if(dc.font.set)
 		XFreeFontSet(dpy, dc.font.set);
 	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
@@ -121,16 +151,11 @@ initfont(const char *fontstr)
 		while(n--)
 			fprintf(stderr, "missing fontset: %s\n", missing[n]);
 		XFreeStringList(missing);
-		if(dc.font.set) {
-			XFreeFontSet(dpy, dc.font.set);
-			dc.font.set = NULL;
-		}
 	}
 	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);
@@ -146,13 +171,15 @@ initfont(const char *fontstr)
 		if(dc.font.xfont)
 			XFreeFont(dpy, dc.font.xfont);
 		dc.font.xfont = NULL;
-		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
-		if (!dc.font.xfont)
-			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
-		if (!dc.font.xfont)
-			error("error, cannot init 'fixed' font\n");
+		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
+			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;
 }
+
+unsigned int
+textw(const char *text) {
+	return textnw(text, strlen(text)) + dc.font.height;
+}

dwm.1

@@ -1,98 +1,149 @@
-.TH DWM 1 dwm-0.1
+.TH DWM 1 dwm-VERSION
 .SH NAME
 dwm \- dynamic window manager
 .SH SYNOPSIS
 .B dwm
 .RB [ \-v ]
 .SH DESCRIPTION
-.SS Overview
-.B dwm
-is a dynamic window manager for X11.
-.SS Options
+dwm is a dynamic window manager for X. It manages windows in tiling and
+floating modes. Either mode can be applied dynamically, optimizing the
+environment for the application in use and the task performed.
+.P
+In tiling mode windows are managed in a master and stacking area. The master
+area contains the windows which currently need most attention, whereas the
+stacking area contains all other windows. In floating mode windows can be
+resized and moved freely. Dialog windows are always managed floating,
+regardless of the mode applied.
+.P
+Windows are grouped by tags. Each window can be tagged with one or multiple
+tags. Selecting certain tags displays all windows with these tags.
+.P
+dwm contains a small status bar which displays all available tags, the mode,
+the title of the focused window, and the text read from standard input. The
+selected tags are indicated with a different color. The tags of the focused
+window are indicated with a filled square in the top left corner.  The tags
+which are applied to one or more windows are indicated with an empty square in
+the top left corner.
+.P
+dwm draws a small border around windows to indicate the focus state.
+.SH OPTIONS
 .TP
 .B \-v
-prints version information to stdout, then exits.
-.SS Status text
-.B dwm
-reads from stdin to display status text if provided.
-.SS Default Key Bindings
-.TP 16
-.I Key	
-.I Action
+prints version information to standard output, then exits.
+.SH USAGE
+.SS Status bar
 .TP
-.B Mod1-Return
-Zoom
-.B window
-to the 
-.B master
-track
+.B Standard input
+is read and displayed in the status text area.
 .TP
-.B Mod1-k
-Focus previous
-.B window
+.B Button1
+click on a tag label to display all windows with that tag, click on the mode
+label toggles between tiling and floating mode.
 .TP
-.B Mod1-j
-Focus next
-.B window
+.B Button3
+click on a tag label adds/removes all windows with that tag to/from the view.
 .TP
-.B Mod1-m
-Maximize current
-.B window
+.B Button4
+click on the mode label increases the number of windows in the master area (tiling mode only).
 .TP
-.B Mod1-[0..n]
-Focus
-.B nth
-tag
+.B Button5
+click on the mode label decreases the number of windows in the master area (tiling mode only).
 .TP
-.B Mod1-space
-(Re-)arrange
-.B all
-windows tiled
+.B Mod1-Button1
+click on a tag label applies that tag to the focused window.
 .TP
-.B Mod1-Shift-space
-(Re-)arrange
-.B all
-windows floating
-.TP
-.B Mod1-Shift-[0..n]
-Apply
-.B nth
-tag to current
-.B window
-.TP
-.B Mod1-Shift-q
-Quit
-.B dwm
+.B Mod1-Button3
+click on a tag label adds/removes that tag to/from the focused window.
+.SS Keyboard commands
 .TP
 .B Mod1-Shift-Return
 Start
-.B terminal
+.BR xterm (1).
 .TP
-.B Mod1-Shift-w
-Start
-.B web browser
+.B Mod1-Tab
+Focus next window.
 .TP
-.B Mod1-Shift-l
-Lock
-.B screen
+.B Mod1-Shift-Tab
+Focus previous window.
 .TP
-.B Control-[0..n]
-Append
+.B Mod1-Return
+Zooms/cycles current window to/from master area (tiling mode), toggles maximization current window (floating mode).
+.TP
+.B Mod1-g
+Grow master area (tiling mode only).
+.TP
+.B Mod1-s
+Shrink master area (tiling mode only).
+.TP
+.B Mod1-i
+Increase the number of windows in the master area (tiling mode only).
+.TP
+.B Mod1-d
+Decrease the number of windows in the master area (tiling mode only).
+.TP
+.B Mod1-Shift-[1..n]
+Apply
+.RB nth
+tag to current window.
+.TP
+.B Mod1-Shift-0
+Apply all tags to current window.
+.TP
+.B Mod1-Control-Shift-[1..n]
+Add/remove
 .B nth
-tag to cureent
-.B window
-.SS Default Mouse Bindings
+tag to/from current window.
+.TP
+.B Mod1-Shift-c
+Close focused window.
+.TP
+.B Mod1-space
+Toggle between tiling and floating mode (affects all windows).
+.TP
+.B Mod1-Shift-space
+Toggle focused window between floating and non-floating state (tiling mode only).
+.TP
+.B Mod1-[1..n]
+View all windows with
+.BR nth
+tag.
+.TP
+.B Mod1-0
+View all windows with any tag.
+.TP
+.B Mod1-Control-[1..n]
+Add/remove all windows with
+.BR nth
+tag to/from the view.
+.TP
+.B Mod1-Shift-q
+Quit dwm.
+.SS Mouse commands
 .TP
 .B Mod1-Button1
-Moves current
-.B window
-while dragging
+Move current window while dragging (floating mode only).
 .TP
 .B Mod1-Button2
-Lowers current
-.B window
+Zoom current window to the master area (tiling mode only).
 .TP
 .B Mod1-Button3
-Resizes current
-.B window
-while dragging
+Resize current window while dragging (floating mode only).
+.SH CUSTOMIZATION
+dwm is customized by creating a custom config.h and (re)compiling the source
+code. This keeps it fast, secure and simple.
+.SH CAVEATS
+The status bar may display
+.BR "EOF"
+when dwm has been started by an X session manager like
+.BR xdm (1),
+because those close standard output before executing dwm.
+.P
+Java applications which use the XToolkit/XAWT backend may draw grey windows
+only. The XToolkit/XAWT backend breaks ICCCM-compliance in recent JDK 1.5 and early
+JDK 1.6 versions, because it assumes a reparenting window manager. As a workaround
+you can use JDK 1.4 (which doesn't contain the XToolkit/XAWT backend) or you
+can set the following environment variable (to use the older Motif
+backend instead):
+.BR AWT_TOOLKIT=MToolkit .
+.SH SEE ALSO
+.BR dmenu (1)

dwm.h

@@ -1,155 +1,157 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for 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 mode is
+ * represented by the arrange() function pointer, which wether points to
+ * dofloat() or dotile(). 
+ *
+ * To understand everything else, start reading main.c:main().
  */
 
+#include "config.h"
 #include <X11/Xlib.h>
 
-/********** CUSTOMIZE **********/
+/* mask shorthands, used in event.c and client.c */
+#define BUTTONMASK		(ButtonPressMask | ButtonReleaseMask)
+/* other stuff used in different places */
+#define PROTODELWIN		1
 
-#define FONT				"-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*"
-#define BGCOLOR				"#666699"
-#define FGCOLOR				"#eeeeee"
-#define BORDERCOLOR			"#9999CC"
-#define MASTERW				52 /* percent */
-#define WM_PROTOCOL_DELWIN	1
+enum { NetSupported, NetWMName, NetLast };		/* EWMH atoms */
+enum { WMProtocols, WMDelete, WMLast };			/* default atoms */
+enum { CurNormal, CurResize, CurMove, CurLast };	/* cursor */
+enum { ColBorder, ColFG, ColBG, ColLast };		/* color */
 
-/* tags */
-enum { Tscratch, Tdev, Twww, Twork, TLast };
-
-/********** CUSTOMIZE **********/
-
-typedef union Arg Arg;
-typedef struct DC DC;
-typedef struct Client Client;
-typedef struct Fnt Fnt;
-typedef struct Key Key;
-typedef struct Rule Rule;
-
-union Arg {
-	const char **argv;
+typedef union {
+	const char *cmd;
 	int i;
-};
+} Arg; /* argument type */
 
-/* atoms */
-enum { WMProtocols, WMDelete, WMLast };
-enum { NetSupported, NetWMName, NetLast };
-
-/* cursor */
-enum { CurNormal, CurResize, CurMove, CurInput, CurLast };
-
-struct Fnt {
-	XFontStruct *xfont;
-	XFontSet set;
+typedef struct {
 	int ascent;
 	int descent;
 	int height;
-};
+	XFontSet set;
+	XFontStruct *xfont;
+} Fnt;
 
-struct DC { /* draw context */
-	GC gc;
-	Drawable drawable;
+typedef struct {
 	int x, y, w, h;
+	unsigned long norm[ColLast];
+	unsigned long sel[ColLast];
+	Drawable drawable;
 	Fnt font;
-	unsigned long bg;
-	unsigned long fg;
-	unsigned long border;
-};
+	GC gc;
+} DC; /* draw context */
 
+typedef struct Client Client;
 struct Client {
 	char name[256];
-	char *tags[TLast];
 	int proto;
 	int x, y, w, h;
-	int tx, ty, tw, th;
+	int rx, ry, rw, rh; /* revert geometry */
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
-	int grav;
-	unsigned int border;
 	long flags; 
-	Bool floating;
-	Window win;
-	Window title;
+	unsigned int border;
+	Bool isfloat, isfixed, ismax;
+	Bool *tags;
 	Client *next;
-	Client *revert;
-};
-
-struct Rule {
-	const char *class;
-	const char *instance;
-	char *tags[TLast];
-	Bool floating;
-};
-
-struct Key {
-	unsigned long mod;
-	KeySym keysym;
-	void (*func)(Arg *arg);
-	Arg arg;
+	Client *prev;
+	Client *snext;
+	Window win;
 };
 
+extern const char *tags[];			/* all tags */
+extern char stext[256];				/* status text */
+extern int bh, bmw;				/* bar height, bar mode label width */
+extern int screen, sx, sy, sw, sh;		/* screen geometry */
+extern int wax, way, wah, waw;			/* windowarea geometry */
+extern unsigned int master, nmaster;		/* master percent, number of master clients */
+extern unsigned int ntags, numlockmask;		/* number of tags, dynamic lock mask */
+extern void (*handler[LASTEvent])(XEvent *);	/* event handler */
+extern void (*arrange)(void);			/* arrange function, indicates mode  */
+extern Atom wmatom[WMLast], netatom[NetLast];
+extern Bool running, selscreen, *seltag;	/* seltag 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;
-extern Atom wm_atom[WMLast], net_atom[NetLast];
-extern Cursor cursor[CurLast];
-extern Bool running, issel;
-extern void (*handler[LASTEvent])(XEvent *);
-extern void (*arrange)(Arg *);
-
-extern int tsel, screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
-extern char *tags[TLast], stext[1024];
-
-extern DC dc;
-extern Client *clients, *sel;
-
-/* bar.c */
-extern void draw_bar();
-extern void barclick(XButtonPressedEvent *e);
 
 /* client.c */
-extern void manage(Window w, XWindowAttributes *wa);
-extern void unmanage(Client *c);
-extern Client *getclient(Window w);
-extern void focus(Client *c);
-extern void update_name(Client *c);
-extern void draw_client(Client *c);
-extern void resize(Client *c, Bool inc);
-extern void update_size(Client *c);
-extern Client *gettitle(Window w);
-extern void craise(Client *c);
-extern void lower(Client *c);
-extern void ckill(Arg *arg);
-extern void nextc(Arg *arg);
-extern void prevc(Arg *arg);
-extern void max(Arg *arg);
-extern void floating(Arg *arg);
-extern void tiling(Arg *arg);
-extern void ttrunc(Arg *arg);
-extern void tappend(Arg *arg);
-extern void view(Arg *arg);
-extern void zoom(Arg *arg);
-extern void gravitate(Client *c, Bool invert);
+extern void configure(Client *c);		/* send synthetic configure event */
+extern void focus(Client *c);			/* focus c, c may be NULL */
+extern Client *getclient(Window w);		/* return client of w */
+extern void killclient(Arg *arg);		/* kill c nicely */
+extern void manage(Window w, XWindowAttributes *wa);	/* manage new client */
+extern void resize(Client *c, Bool sizehints);	/* resize c*/
+extern void updatesizehints(Client *c);		/* update the size hint variables of c */
+extern void updatetitle(Client *c);		/* update the name of c */
+extern void unmanage(Client *c);		/* destroy c */
 
 /* draw.c */
-extern void drawtext(const char *text, Bool invert, Bool border);
-extern unsigned long initcolor(const char *colstr);
-extern void initfont(const char *fontstr);
-extern unsigned int textnw(char *text, unsigned int len);
-extern unsigned int textw(char *text);
-extern unsigned int texth(void);
+extern void drawstatus(void);			/* draw the bar */
+extern unsigned long getcolor(const char *colstr);	/* return color of colstr */
+extern void setfont(const char *fontstr);	/* set the font for DC */
+extern unsigned int textw(const char *text);	/* return the width of text in px*/
 
-/* dev.c */
-extern void update_keys(void);
-extern void keypress(XEvent *e);
-extern void mresize(Client *c);
-extern void mmove(Client *c);
+/* event.c */
+extern void grabkeys(void);			/* grab all keys defined in config.h */
+extern void procevent(void);			/* process pending X events */
 
 /* main.c */
-extern int error_handler(Display *dsply, XErrorEvent *e);
-extern void send_message(Window w, Atom a, long value);
-extern int win_proto(Window w);
-extern void quit(Arg *arg);
+extern int getproto(Window w);			/* return protocol mask of WMProtocols property of w */
+extern void quit(Arg *arg);			/* quit dwm nicely */
+extern void sendevent(Window w, Atom a, long value);	/* send synthetic event to w */
+extern int xerror(Display *dsply, XErrorEvent *ee);	/* dwm's X error handler */
+
+/* tag.c */
+extern void initrregs(void);			/* initialize regexps of rules defined in config.h */
+extern Client *getnext(Client *c);		/* returns next visible client */
+extern Client *getprev(Client *c);		/* returns previous visible client */
+extern void settags(Client *c, Client *trans);	/* sets tags of c */
+extern void tag(Arg *arg);			/* tags c with arg's index */
+extern void toggletag(Arg *arg);		/* toggles c tags with arg's index */
 
 /* util.c */
-extern void error(const char *errstr, ...);
-extern void *emallocz(unsigned int size);
-extern void spawn(Arg *arg);
+extern void *emallocz(unsigned int size);	/* allocates zero-initialized memory, exits on error */
+extern void eprint(const char *errstr, ...);	/* prints errstr and exits with 1 */
+extern void spawn(Arg *arg);			/* forks a new subprocess with to arg's cmd */
+
+/* view.c */
+extern void detach(Client *c);			/* detaches c from global client list */
+extern void dofloat(void);			/* arranges all windows floating */
+extern void dotile(void);			/* arranges all windows tiled */
+extern void focusnext(Arg *arg);		/* focuses next visible client, arg is ignored  */
+extern void focusprev(Arg *arg);		/* focuses previous visible client, arg is ignored */
+extern void incnmaster(Arg *arg);		/* increments nmaster with arg's index value */
+extern Bool isvisible(Client *c);		/* returns True if client is visible */
+extern void resizemaster(Arg *arg);		/* resizes the master percent with arg's index value */
+extern void restack(void);			/* restores z layers of all clients */
+extern void togglefloat(Arg *arg);		/* toggles focusesd client between floating/non-floating state */
+extern void togglemode(Arg *arg);		/* toggles global arrange function (dotile/dofloat) */
+extern void toggleview(Arg *arg);		/* toggles the tag with arg's index (in)visible */
+extern void view(Arg *arg);			/* views the tag with arg's index */
+extern void zoom(Arg *arg);			/* zooms the focused client to master area, arg is ignored */

dwm.html

@@ -1,106 +0,0 @@
-<html>
-	<head>
-		<title>dwm - dynamic window manager</title>
-		<meta name="author" content="Anselm R. Garbe">
-		<meta name="generator" content="ed">
-		<meta name="copyright" content="(C)opyright 2006 by Anselm R. Garbe">
-		<style type="text/css">
-			body {
-				color: #000000;
-				font-family: sans-serif;
-				margin: 20px 20px 20px 20px;
-			}
-		</style>
-	</head>
-	<body>
-		<center>
-			<img src="dwm.png"/><br />
-			<h3>dynamic window manager</h3>
-		</center>
-		<h3>Description</h3>
-		<p>
-		dwm is a dynamic window manager for X11.
-		</p>
-		<h3>Philosophy</h3>
-		<p>
-		As founder and main developer of wmii I came to the conclusion that
-		wmii is too clunky for my needs. I don't need so many funky features
-		and all this hype about remote control through a 9P service, I only
-		want to manage my windows in a simple, but dynamic way. wmii never got
-		finished because I listened to users, who proposed arbitrary ideas I
-		considered useful. This resulted in an extreme <a href="http://www.jwz.org/doc/cadt.html">CADT</a>
-		development model, which was a mistake. Thus the philosophy of
-		dwm is simply <i>to fit my needs</i> (maybe yours as well). That's it.
-		</p>
-		<h3>Differences to wmii</h3	
-		<p>
-		In contrast to wmii, dwm is only a window manager, and nothing else.
-		Hence, it is much smaller, faster and simpler.
-		</p>
-		<ul>
-			<li>
-			dwm has no 9P support, no menu, no editable tagbars,
-			no shell-based configuration and remote control and comes without
-			any additional tools like printing the selection or warping the
-			mouse.
-			</li>
-			<li>
-			dwm is only a single binary, it's source code is intended to never
-			exceed 2000 SLOC.
-			</li>
-			<li>
-			dwm is customized through editing its source code, that makes it
-			extremely fast and secure - it does not process any input data which
-			hasn't been known at compile time, except window title names.
-			</li>
-			<li>
-			dwm is based on tagging and dynamic window management (however simpler
-			than wmii or larswm).
-			</li>
-			<li>
-			dwm don't distinguishes between layers, there is no floating or
-			managed layer. Wether the clients of currently selected tag are
-			managed or not, you can re-arrange all clients on the fly. Popup-
-			and fixed-size windows are treated unmanaged. 
-			</li>
-			<li>
-			dwm uses 1-pixel borders to provide the maximum of screen real
-			estate to clients. Small titlebars are only drawn in front of unfocused
-			clients.
-			</li>
-			<li>
-			dwm reads from <b>stdin</b> to print arbitrary status text (like the
-			date, load, battery charge). That's much simpler than larsremote,
-			wmiir and what not...
-			</li>
-			<li>
-			garbeam <b>does not</b> want any feedback to dwm. If you ask for support,
-			feature requests, or if you report bugs, they will be <b>ignored</b>
-			with a high chance. dwm is only intended to fit garbeams needs.
-			However you are free to download and distribute/relicense it, with the
-			conditions of the <a href="http://wmii.de/cgi-bin/hgwebdir.cgi/dwm?f=f10eb1139362;file=LICENSE;style=raw">MIT/X Consortium license</a>.
-			</li>
-		</ul>
-		<h3>Screenshot</h3>
-		<p>
-		<a href="http://wmii.de/shots/dwm-20060714.png">Click here for a screenshot</a> (20060714)
-		</p>
-		<h3>Development</h3>
-		<p>
-		dwm is actively developed in parallel to wmii. You can <a href="http://wmii.de/cgi-bin/hgwebdir.cgi/dwm">browse</a> its source code repository or get a copy using <a href="http://www.selenic.com/mercurial/">Mercurial</a> with following command:
-		</p>
-		<p>
-		<code>hg clone http://wmii.de/cgi-bin/hgwebdir.cgi/dwm</code>
-		</p>
-		<h3>Download</h3>
-		<ul>
-			<li><a href="http://wmii.de/download/dwm-0.1.tar.gz">dwm 0.1</a> (12kb) (20060714)</li>
-		</ul>
-		<h3>Miscellaneous</h3>
-		<p>
-		You can purchase this <a href="https://www.spreadshirt.net/shop.php?op=article&article_id=3298632&view=403">tricot</a>
-		if you like dwm and the dwm logo, which has been designed by garbeam.
-		</p>
-		<p><small>--Anselm (20060714)</small></p>
-	</body>
-</html>

event.c

@@ -1,79 +1,175 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-
-#include <fcntl.h>
-#include <stdio.h>
+#include "dwm.h"
 #include <stdlib.h>
-#include <string.h>
 #include <X11/keysym.h>
 #include <X11/Xatom.h>
 
-#include "dwm.h"
+/* static */
 
-/* local functions */
-static void buttonpress(XEvent *e);
-static void configurerequest(XEvent *e);
-static void destroynotify(XEvent *e);
-static void enternotify(XEvent *e);
-static void leavenotify(XEvent *e);
-static void expose(XEvent *e);
-static void keymapnotify(XEvent *e);
-static void maprequest(XEvent *e);
-static void propertynotify(XEvent *e);
-static void unmapnotify(XEvent *e);
+typedef struct {
+	unsigned long mod;
+	KeySym keysym;
+	void (*func)(Arg *arg);
+	Arg arg;
+} Key;
 
-void (*handler[LASTEvent]) (XEvent *) = {
-	[ButtonPress] = buttonpress,
-	[ConfigureRequest] = configurerequest,
-	[DestroyNotify] = destroynotify,
-	[EnterNotify] = enternotify,
-	[LeaveNotify] = leavenotify,
-	[Expose] = expose,
-	[KeyPress] = keypress,
-	[KeymapNotify] = keymapnotify,
-	[MapRequest] = maprequest,
-	[PropertyNotify] = propertynotify,
-	[UnmapNotify] = unmapnotify
-};
+KEYS
+
+#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
+#define MOUSEMASK		(BUTTONMASK | PointerMotionMask)
 
 static void
-buttonpress(XEvent *e)
-{
-	XButtonPressedEvent *ev = &e->xbutton;
-	Client *c;
+movemouse(Client *c) {
+	int x1, y1, ocx, ocy, di;
+	unsigned int dui;
+	Window dummy;
+	XEvent ev;
 
-	if(barwin == ev->window)
-		barclick(ev);
-	else if((c = getclient(ev->window))) {
-		craise(c);
-		switch(ev->button) {
-		default:
+	ocx = c->x;
+	ocy = 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:
+			resize(c, True);
+			XUngrabPointer(dpy, CurrentTime);
+			return;
+		case ConfigureRequest:
+		case Expose:
+		case MapRequest:
+			handler[ev.type](&ev);
 			break;
-		case Button1:
-			mmove(c);
-			break;
-		case Button2:
-			lower(c);
-			break;
-		case Button3:
-			mresize(c);
+		case MotionNotify:
+			XSync(dpy, False);
+			c->x = ocx + (ev.xmotion.x - x1);
+			c->y = ocy + (ev.xmotion.y - y1);
+			if(abs(wax + c->x) < SNAP)
+				c->x = wax;
+			else if(abs((wax + waw) - (c->x + c->w + 2 * c->border)) < SNAP)
+				c->x = wax + waw - c->w - 2 * c->border;
+			if(abs(way - c->y) < SNAP)
+				c->y = way;
+			else if(abs((way + wah) - (c->y + c->h + 2 * c->border)) < SNAP)
+				c->y = way + wah - c->h - 2 * c->border;
+			resize(c, False);
 			break;
 		}
 	}
 }
 
 static void
-configurerequest(XEvent *e)
-{
+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:
+			resize(c, True);
+			XUngrabPointer(dpy, CurrentTime);
+			return;
+		case ConfigureRequest:
+		case Expose:
+		case MapRequest:
+			handler[ev.type](&ev);
+			break;
+		case MotionNotify:
+			XSync(dpy, False);
+			nw = ev.xmotion.x - ocx - 2 * c->border + 1;
+			c->w = nw > 0 ? nw : 1;
+			nh = ev.xmotion.y - ocy - 2 * c->border + 1;
+			c->h = nh > 0 ? nh : 1;
+			resize(c, True);
+			break;
+		}
+	}
+}
+
+static void
+buttonpress(XEvent *e) {
+	int x;
+	Arg a;
+	Client *c;
+	XButtonPressedEvent *ev = &e->xbutton;
+
+	if(barwin == ev->window) {
+		x = 0;
+		for(a.i = 0; a.i < ntags; a.i++) {
+			x += textw(tags[a.i]);
+			if(ev->x < x) {
+				if(ev->button == Button1) {
+					if(ev->state & MODKEY)
+						tag(&a);
+					else
+						view(&a);
+				}
+				else if(ev->button == Button3) {
+					if(ev->state & MODKEY)
+						toggletag(&a);
+					else
+						toggleview(&a);
+				}
+				return;
+			}
+		}
+		if(ev->x < x + bmw)
+			switch(ev->button) {
+			case Button1:
+				togglemode(NULL);
+				break;
+			case Button4:
+				a.i = 1;
+				incnmaster(&a);
+				break;
+			case Button5:
+				a.i = -1;
+				incnmaster(&a);
+				break;
+			}
+	}
+	else if((c = getclient(ev->window))) {
+		focus(c);
+		if(CLEANMASK(ev->state) != MODKEY)
+			return;
+		if(ev->button == Button1 && (arrange == dofloat || c->isfloat)) {
+			restack();
+			movemouse(c);
+		}
+		else if(ev->button == Button2)
+			zoom(NULL);
+		else if(ev->button == Button3 && (arrange == dofloat || c->isfloat) &&
+				!c->isfixed) {
+			restack();
+			resizemouse(c);
+		}
+	}
+}
+
+static void
+configurerequest(XEvent *e) {
+	unsigned long newmask;
+	Client *c;
 	XConfigureRequestEvent *ev = &e->xconfigurerequest;
 	XWindowChanges wc;
-	Client *c;
 
-	ev->value_mask &= ~CWSibling;
 	if((c = getclient(ev->window))) {
-		gravitate(c, True);
+		c->ismax = False;
 		if(ev->value_mask & CWX)
 			c->x = ev->x;
 		if(ev->value_mask & CWY)
@@ -83,27 +179,40 @@ configurerequest(XEvent *e)
 		if(ev->value_mask & CWHeight)
 			c->h = ev->height;
 		if(ev->value_mask & CWBorderWidth)
-			c->border = 1;
-		gravitate(c, False);
-		resize(c, True);
+			c->border = ev->border_width;
+		wc.x = c->x;
+		wc.y = c->y;
+		wc.width = c->w;
+		wc.height = c->h;
+		newmask = ev->value_mask & (~(CWSibling | CWStackMode | CWBorderWidth));
+		if(newmask)
+			XConfigureWindow(dpy, c->win, newmask, &wc);
+		else
+			configure(c);
+		XSync(dpy, False);
+		if(c->isfloat) {
+			resize(c, False);
+			if(!isvisible(c))
+				XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+		}
+		else
+			arrange();
+	}
+	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);
 	}
-
-	wc.x = ev->x;
-	wc.y = ev->y;
-	wc.width = ev->width;
-	wc.height = ev->height;
-	wc.border_width = 1;
-	wc.sibling = None;
-	wc.stack_mode = Above;
-	ev->value_mask &= ~CWStackMode;
-	ev->value_mask |= CWBorderWidth;
-	XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
-	XFlush(dpy);
 }
 
 static void
-destroynotify(XEvent *e)
-{
+destroynotify(XEvent *e) {
 	Client *c;
 	XDestroyWindowEvent *ev = &e->xdestroywindow;
 
@@ -112,105 +221,168 @@ destroynotify(XEvent *e)
 }
 
 static void
-enternotify(XEvent *e)
-{
-	XCrossingEvent *ev = &e->xcrossing;
+enternotify(XEvent *e) {
 	Client *c;
+	XCrossingEvent *ev = &e->xcrossing;
 
 	if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
 		return;
-
-	if((c = getclient(ev->window)))
+	if((c = getclient(ev->window)) && isvisible(c))
+		focus(c);
+	else if(ev->window == root) {
+		selscreen = True;
+		for(c = stack; c && !isvisible(c); c = c->snext);
 		focus(c);
-	else if(ev->window == root)
-		issel = True;
-}
-
-static void
-leavenotify(XEvent *e)
-{
-	XCrossingEvent *ev = &e->xcrossing;
-
-	if((ev->window == root) && !ev->same_screen)
-		issel = True;
-}
-
-static void
-expose(XEvent *e)
-{
-	XExposeEvent *ev = &e->xexpose;
-	Client *c;
-
-	if(ev->count == 0) {
-		if((c = gettitle(ev->window)))
-			draw_client(c);
 	}
 }
 
 static void
-keymapnotify(XEvent *e)
-{
-	update_keys();
+expose(XEvent *e) {
+	XExposeEvent *ev = &e->xexpose;
+
+	if(ev->count == 0) {
+		if(barwin == ev->window)
+			drawstatus();
+	}
 }
 
 static void
-maprequest(XEvent *e)
-{
-	XMapRequestEvent *ev = &e->xmaprequest;
+keypress(XEvent *e) {
+	static unsigned int len = sizeof key / sizeof key[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 == key[i].keysym
+			&& CLEANMASK(key[i].mod) == CLEANMASK(ev->state))
+		{
+			if(key[i].func)
+				key[i].func(&key[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) {
 		XSelectInput(dpy, ev->window,
 				(StructureNotifyMask | PropertyChangeMask));
 		return;
 	}
-
 	if(!getclient(ev->window))
 		manage(ev->window, &wa);
 }
 
 static void
-propertynotify(XEvent *e)
-{
-	XPropertyEvent *ev = &e->xproperty;
-	Window trans;
+propertynotify(XEvent *e) {
 	Client *c;
+	Window trans;
+	XPropertyEvent *ev = &e->xproperty;
 
 	if(ev->state == PropertyDelete)
 		return; /* ignore */
-
 	if((c = getclient(ev->window))) {
-		if(ev->atom == wm_atom[WMProtocols]) {
-			c->proto = win_proto(c->win);
+		if(ev->atom == wmatom[WMProtocols]) {
+			c->proto = getproto(c->win);
 			return;
 		}
 		switch (ev->atom) {
 			default: break;
 			case XA_WM_TRANSIENT_FOR:
 				XGetTransientForHint(dpy, c->win, &trans);
-				if(!c->floating && (c->floating = (trans != 0)))
-					arrange(NULL);
+				if(!c->isfloat && (c->isfloat = (trans != 0)))
+					arrange();
 				break;
 			case XA_WM_NORMAL_HINTS:
-				update_size(c);
+				updatesizehints(c);
 				break;
 		}
-		if(ev->atom == XA_WM_NAME || ev->atom == net_atom[NetWMName]) {
-			update_name(c);
-			draw_client(c);
+		if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
+			updatetitle(c);
+			if(c == sel)
+				drawstatus();
 		}
 	}
 }
 
 static void
-unmapnotify(XEvent *e)
-{
+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,
+	[DestroyNotify] = destroynotify,
+	[EnterNotify] = enternotify,
+	[LeaveNotify] = leavenotify,
+	[Expose] = expose,
+	[KeyPress] = keypress,
+	[MappingNotify] = mappingnotify,
+	[MapRequest] = maprequest,
+	[PropertyNotify] = propertynotify,
+	[UnmapNotify] = unmapnotify
+};
+
+void
+grabkeys(void) {
+	static unsigned int len = sizeof key / sizeof key[0];
+	unsigned int i;
+	KeyCode code;
+
+	XUngrabKey(dpy, AnyKey, AnyModifier, root);
+	for(i = 0; i < len; i++) {
+		code = XKeysymToKeycode(dpy, key[i].keysym);
+		XGrabKey(dpy, code, key[i].mod, root, True,
+				GrabModeAsync, GrabModeAsync);
+		XGrabKey(dpy, code, key[i].mod | LockMask, root, True,
+				GrabModeAsync, GrabModeAsync);
+		XGrabKey(dpy, code, key[i].mod | numlockmask, root, True,
+				GrabModeAsync, GrabModeAsync);
+		XGrabKey(dpy, code, key[i].mod | numlockmask | LockMask, root, True,
+				GrabModeAsync, GrabModeAsync);
+	}
+}
+
+void
+procevent(void) {
+	XEvent ev;
+
+	while(XPending(dpy)) {
+		XNextEvent(dpy, &ev);
+		if(handler[ev.type])
+			(handler[ev.type])(&ev); /* call handler */
+	}
+}

main.c

@@ -1,64 +1,72 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
 
+#include "dwm.h"
 #include <errno.h>
-#include <stdarg.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 "dwm.h"
+/* extern */
 
-/********** CUSTOMIZE **********/
-
-char *tags[TLast] = {
-	[Tscratch] = "scratch",
-	[Tdev] = "dev",
-	[Twww] = "www",
-	[Twork] = "work",
-};
-
-/********** CUSTOMIZE **********/
-
-/* X structs */
-Display *dpy;
-Window root, barwin;
-Atom wm_atom[WMLast], net_atom[NetLast];
-Cursor cursor[CurLast];
+char stext[256];
+Bool *seltag;
+int bh, bmw, screen, sx, sy, sw, sh, wax, way, waw, wah;
+unsigned int master, nmaster, ntags, numlockmask;
+Atom wmatom[WMLast], netatom[NetLast];
 Bool running = True;
-Bool issel;
-
-int tsel = Tdev; /* default tag */
-int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
-char stext[1024];
-
-DC dc = {0};
+Bool selscreen = True;
 Client *clients = NULL;
 Client *sel = NULL;
+Client *stack = NULL;
+Cursor cursor[CurLast];
+Display *dpy;
+DC dc = {0};
+Window root, barwin;
 
-static Bool other_wm_running;
-static const char version[] =
-	"dwm-" VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
-static int (*x_error_handler) (Display *, XErrorEvent *);
+/* static */
+
+static int (*xerrorxlib)(Display *, XErrorEvent *);
+static Bool otherwm, readin;
 
 static void
-usage() {	error("usage: dwm [-v]\n"); }
+cleanup(void) {
+	close(STDIN_FILENO);
+	while(stack) {
+		resize(stack, True);
+		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(seltag);
+}
 
 static void
-scan_wins()
-{
+scan(void) {
 	unsigned int i, num;
-	Window *wins;
+	Window *wins, d1, d2;
 	XWindowAttributes wa;
-	Window d1, d2;
 
+	wins = NULL;
 	if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
 		for(i = 0; i < num; i++) {
 			if(!XGetWindowAttributes(dpy, wins[i], &wa))
@@ -73,49 +81,116 @@ scan_wins()
 		XFree(wins);
 }
 
-static int
-win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
-{
-	Atom real;
-	int format;
-	unsigned long res, extra;
-	int status;
+static void
+setup(void) {
+	int i, j;
+	unsigned int mask;
+	Window w;
+	XModifierKeymap *modmap;
+	XSetWindowAttributes wa;
 
-	status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
-			&res, &extra, prop);
-
-	if(status != Success || *prop == 0) {
-		return 0;
+	/* init atoms */
+	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
+	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", 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 */
+	numlockmask = 0;
+	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);
+		}
 	}
-	if(res == 0) {
-		free((void *) *prop);
-	}
-	return res;
+	XFreeModifiermap(modmap);
+	/* select for events */
+	wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
+		| EnterWindowMask | LeaveWindowMask;
+	wa.cursor = cursor[CurNormal];
+	XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
+	grabkeys();
+	initrregs();
+	for(ntags = 0; tags[ntags]; ntags++);
+	seltag = emallocz(sizeof(Bool) * ntags);
+	seltag[0] = True;
+	/* style */
+	dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
+	dc.norm[ColBG] = getcolor(NORMBGCOLOR);
+	dc.norm[ColFG] = getcolor(NORMFGCOLOR);
+	dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
+	dc.sel[ColBG] = getcolor(SELBGCOLOR);
+	dc.sel[ColFG] = getcolor(SELFGCOLOR);
+	setfont(FONT);
+	/* geometry */
+	sx = sy = 0;
+	sw = DisplayWidth(dpy, screen);
+	sh = DisplayHeight(dpy, screen);
+	master = MASTER;
+	nmaster = NMASTER;
+	bmw = textw(TILESYMBOL) > textw(FLOATSYMBOL) ? textw(TILESYMBOL) : textw(FLOATSYMBOL);
+	/* bar */
+	dc.h = bh = dc.font.height + 2;
+	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]);
+	XMapRaised(dpy, barwin);
+	strcpy(stext, "dwm-"VERSION);
+	/* windowarea */
+	wax = sx;
+	way = sy + bh;
+	wah = sh - bh;
+	waw = sw;
+	/* pixmap for everything */
+	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);
+	/* multihead support */
+	selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
 }
 
-int
-win_proto(Window w)
-{
-	unsigned char *protocols;
-	long res;
-	int protos = 0;
-	int i;
+/*
+ * Startup Error handler to check if another window manager
+ * is already running.
+ */
+static int
+xerrorstart(Display *dsply, XErrorEvent *ee) {
+	otherwm = True;
+	return -1;
+}
 
-	res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols);
-	if(res <= 0) {
+/* extern */
+
+int
+getproto(Window w) {
+	int i, format, protos, status;
+	unsigned long extra, res;
+	Atom *protocols, real;
+
+	protos = 0;
+	status = XGetWindowProperty(dpy, w, wmatom[WMProtocols], 0L, 20L, False,
+			XA_ATOM, &real, &format, &res, &extra, (unsigned char **)&protocols);
+	if(status != Success || protocols == 0)
 		return protos;
-	}
-	for(i = 0; i < res; i++) {
-		if(protocols[i] == wm_atom[WMDelete])
-			protos |= WM_PROTOCOL_DELWIN;
-	}
-	free((char *) protocols);
+	for(i = 0; i < res; i++)
+		if(protocols[i] == wmatom[WMDelete])
+			protos |= PROTODELWIN;
+	free(protocols);
 	return protos;
 }
 
 void
-send_message(Window w, Atom a, long value)
-{
+sendevent(Window w, Atom a, long value) {
 	XEvent e;
 
 	e.type = ClientMessage;
@@ -125,203 +200,106 @@ send_message(Window w, Atom a, long value)
 	e.xclient.data.l[0] = value;
 	e.xclient.data.l[1] = CurrentTime;
 	XSendEvent(dpy, w, False, NoEventMask, &e);
-	XFlush(dpy);
-}
-
-/*
- * There's no way to check accesses to destroyed windows, thus
- * those cases are ignored (especially on UnmapNotify's).
- * Other types of errors call Xlib's default error handler, which
- * calls exit().
- */
-int
-error_handler(Display *dpy, XErrorEvent *error)
-{
-	if(error->error_code == BadWindow
-			|| (error->request_code == X_SetInputFocus
-				&& error->error_code == BadMatch)
-			|| (error->request_code == X_PolyText8
-				&& error->error_code == BadDrawable)
-			|| (error->request_code == X_PolyFillRectangle
-				&& error->error_code == BadDrawable)
-			|| (error->request_code == X_PolySegment
-				&& error->error_code == BadDrawable)
-			|| (error->request_code == X_ConfigureWindow
-				&& error->error_code == BadMatch)
-			|| (error->request_code == X_GrabKey
-				&& error->error_code == BadAccess))
-		return 0;
-	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
-			error->request_code, error->error_code);
-	return x_error_handler(dpy, error); /* may call exit() */
-}
-
-/*
- * Startup Error handler to check if another window manager
- * is already running.
- */
-static int
-startup_error_handler(Display *dpy, XErrorEvent *error)
-{
-	other_wm_running = True;
-	return -1;
-}
-
-static void
-cleanup()
-{
-	while(sel) {
-		resize(sel, True);
-		unmanage(sel);
-	}
-	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+	XSync(dpy, False);
 }
 
 void
-quit(Arg *arg)
-{
-	running = False;
+quit(Arg *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[])
-{
-	int i, n;
+main(int argc, char *argv[]) {
+	char *p;
+	int r, xfd;
 	fd_set rd;
-	XSetWindowAttributes wa;
-	unsigned int mask;
-	Bool readstdin = True;
-	Window w;
-	XEvent ev;
 
-	for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
-		switch (argv[i][1]) {
-		case 'v':
-			fprintf(stdout, "%s", version);
-			exit(0);
-			break;
-		default:
-			usage();
-			break;
-		}
+	if(argc == 2 && !strncmp("-v", argv[1], 3)) {
+		fputs("dwm-"VERSION", (C)opyright MMVI-MMVII Anselm R. Garbe\n", stdout);
+		exit(EXIT_SUCCESS);
 	}
-
+	else if(argc != 1)
+		eprint("usage: dwm [-v]\n");
+	setlocale(LC_CTYPE, "");
 	dpy = XOpenDisplay(0);
 	if(!dpy)
-		error("dwm: cannot connect X server\n");
-
+		eprint("dwm: cannot open display\n");
+	xfd = ConnectionNumber(dpy);
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
-
-	/* check if another WM is already running */
-	other_wm_running = False;
-	XSetErrorHandler(startup_error_handler);
-	/* this causes an error if some other WM is running */
+	otherwm = False;
+	XSetErrorHandler(xerrorstart);
+	/* this causes an error if some other window manager is running */
 	XSelectInput(dpy, root, SubstructureRedirectMask);
-	XFlush(dpy);
+	XSync(dpy, False);
+	if(otherwm)
+		eprint("dwm: another window manager is already running\n");
 
-	if(other_wm_running)
-		error("dwm: another window manager is already running\n");
+	XSync(dpy, False);
+	XSetErrorHandler(NULL);
+	xerrorxlib = XSetErrorHandler(xerror);
+	XSync(dpy, False);
+	setup();
+	drawstatus();
+	scan();
 
-	XSetErrorHandler(0);
-	x_error_handler = XSetErrorHandler(error_handler);
-
-	/* init atoms */
-	wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
-	wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
-	net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
-	net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
-	XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
-			PropModeReplace, (unsigned char *) net_atom, NetLast);
-
-	/* init cursors */
-	cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
-	cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
-	cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
-
-	update_keys();
-
-	/* style */
-	dc.bg = initcolor(BGCOLOR);
-	dc.fg = initcolor(FGCOLOR);
-	dc.border = initcolor(BORDERCOLOR);
-	initfont(FONT);
-
-	sx = sy = 0;
-	sw = DisplayWidth(dpy, screen);
-	sh = DisplayHeight(dpy, screen);
-	mw = (sw * MASTERW) / 100;
-
-	wa.override_redirect = 1;
-	wa.background_pixmap = ParentRelative;
-	wa.event_mask = ButtonPressMask | ExposureMask;
-
-	bx = by = 0;
-	bw = sw;
-	dc.h = bh = dc.font.height + 4;
-	barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
-			CopyFromParent, DefaultVisual(dpy, screen),
-			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
-	XDefineCursor(dpy, barwin, cursor[CurNormal]);
-	XMapRaised(dpy, barwin);
-
-	dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
-	dc.gc = XCreateGC(dpy, root, 0, 0);
-	draw_bar();
-
-	issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
-
-	wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
-					| LeaveWindowMask;
-	wa.cursor = cursor[CurNormal];
-
-	XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
-
-	strcpy(stext, "dwm-"VERSION);
-	scan_wins();
-
-	/* main event loop, reads status text from stdin as well */
-Mainloop:
+	/* main event loop, also reads status text from stdin */
+	XSync(dpy, False);
+	procevent();
+	readin = True;
 	while(running) {
 		FD_ZERO(&rd);
-		if(readstdin)
+		if(readin)
 			FD_SET(STDIN_FILENO, &rd);
-		FD_SET(ConnectionNumber(dpy), &rd);
-
-		i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
-		if(i == -1 && errno == EINTR)
-			continue;
-		if(i < 0)
-			error("select failed\n");
-		else if(i > 0) {
-			if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
-				while(XPending(dpy)) {
-					XNextEvent(dpy, &ev);
-					if(handler[ev.type])
-						(handler[ev.type])(&ev); /* call handler */
-				}
-			}
-			if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) {
-				i = n = 0;
-				for(;;) {
-					if((i = getchar()) == EOF) {
-						/* broken pipe/end of producer */
-						readstdin = False;
-						strcpy(stext, "broken pipe");
-						goto Mainloop;
-					}
-					if(i == '\n' || n >= sizeof(stext) - 1)
-						break;
-					stext[n++] = i;
-				}
-				stext[n] = 0;
-				draw_bar();
-			}
+		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 + strlen(stext) - 1; p >= stext && *p != '\n'; --p);
+				if(p > stext)
+					strncpy(stext, p + 1, sizeof stext);
+			}
+			drawstatus();
+		}
+		if(FD_ISSET(xfd, &rd))
+			procevent();
 	}
-
 	cleanup();
 	XCloseDisplay(dpy);
-
 	return 0;
 }

tag.c

@@ -0,0 +1,133 @@
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+#include "dwm.h"
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <X11/Xutil.h>
+
+
+typedef struct {
+	const char *clpattern;
+	const char *tpattern;
+	Bool isfloat;
+} Rule;
+
+typedef struct {
+	regex_t *clregex;
+	regex_t *tregex;
+} RReg;
+
+/* static */
+
+TAGS
+RULES
+
+static RReg *rreg = NULL;
+static unsigned int len = 0;
+
+/* extern */
+
+Client *
+getnext(Client *c) {
+	for(; c && !isvisible(c); c = c->next);
+	return c;
+}
+
+Client *
+getprev(Client *c) {
+	for(; c && !isvisible(c); c = c->prev);
+	return c;
+}
+
+void
+initrregs(void) {
+	unsigned int i;
+	regex_t *reg;
+
+	if(rreg)
+		return;
+	len = sizeof rule / sizeof rule[0];
+	rreg = emallocz(len * sizeof(RReg));
+	for(i = 0; i < len; i++) {
+		if(rule[i].clpattern) {
+			reg = emallocz(sizeof(regex_t));
+			if(regcomp(reg, rule[i].clpattern, REG_EXTENDED))
+				free(reg);
+			else
+				rreg[i].clregex = reg;
+		}
+		if(rule[i].tpattern) {
+			reg = emallocz(sizeof(regex_t));
+			if(regcomp(reg, rule[i].tpattern, REG_EXTENDED))
+				free(reg);
+			else
+				rreg[i].tregex = reg;
+		}
+	}
+}
+
+void
+settags(Client *c, Client *trans) {
+	char prop[512];
+	unsigned int i, j;
+	regmatch_t tmp;
+	Bool matched = trans != NULL;
+	XClassHint ch;
+
+	if(matched) {
+		for(i = 0; i < ntags; i++)
+			c->tags[i] = trans->tags[i];
+	}
+	else if(XGetClassHint(dpy, c->win, &ch)) {
+		snprintf(prop, sizeof prop, "%s:%s:%s",
+				ch.res_class ? ch.res_class : "",
+				ch.res_name ? ch.res_name : "", c->name);
+		for(i = 0; i < len; i++)
+			if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
+				c->isfloat = rule[i].isfloat;
+				for(j = 0; rreg[i].tregex && j < ntags; j++) {
+					if(!regexec(rreg[i].tregex, 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] = seltag[i];
+}
+
+void
+tag(Arg *arg) {
+	unsigned int i;
+
+	if(!sel)
+		return;
+	for(i = 0; i < ntags; i++)
+		sel->tags[i] = (arg->i == -1) ? True : False;
+	if(arg->i >= 0 && arg->i < ntags)
+		sel->tags[arg->i] = True;
+	arrange();
+}
+
+void
+toggletag(Arg *arg) {
+	unsigned int i;
+
+	if(!sel)
+		return;
+	sel->tags[arg->i] = !sel->tags[arg->i];
+	for(i = 0; i < ntags && !sel->tags[i]; i++);
+	if(i == ntags)
+		sel->tags[arg->i] = True;
+	arrange();
+}

util.c

@@ -1,59 +1,54 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-
+#include "dwm.h"
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
-#include "dwm.h"
-
-void
-error(const char *errstr, ...) {
-	va_list ap;
-	va_start(ap, errstr);
-	vfprintf(stderr, errstr, ap);
-	va_end(ap);
-	exit(1);
-}
-
-static void
-bad_malloc(unsigned int size)
-{
-	fprintf(stderr, "fatal: could not malloc() %d bytes\n",
-			(int) size);
-	exit(1);
-}
+/* extern */
 
 void *
-emallocz(unsigned int size)
-{
+emallocz(unsigned int size) {
 	void *res = calloc(1, size);
+
 	if(!res)
-		bad_malloc(size);
+		eprint("fatal: could not malloc() %u bytes\n", size);
 	return res;
 }
 
 void
-spawn(Arg *arg)
-{
-	char **argv = (char **)arg->argv;
-	if(!argv || !argv[0])
+eprint(const char *errstr, ...) {
+	va_list ap;
+
+	va_start(ap, errstr);
+	vfprintf(stderr, errstr, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+void
+spawn(Arg *arg) {
+	static char *shell = NULL;
+
+	if(!shell && !(shell = getenv("SHELL")))
+		shell = "/bin/sh";
+	if(!arg->cmd)
 		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();
-			execvp(argv[0], argv);
-			fprintf(stderr, "dwm: execvp %s", argv[0]);
+			execl(shell, shell, "-c", arg->cmd, (char *)NULL);
+			fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg->cmd);
 			perror(" failed");
 		}
-		exit (0);
+		exit(0);
 	}
 	wait(0);
 }

view.c

@@ -0,0 +1,271 @@
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+#include "dwm.h"
+#include <stdio.h>
+
+/* static */
+
+static Client *
+nexttiled(Client *c) {
+	for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
+	return c;
+}
+
+static void
+togglemax(Client *c) {
+	XEvent ev;
+		
+	if(c->isfixed)
+		return;
+
+	if((c->ismax = !c->ismax)) {
+		c->rx = c->x; c->x = wax;
+		c->ry = c->y; c->y = way;
+		c->rw = c->w; c->w = waw - 2 * BORDERPX;
+		c->rh = c->h; c->h = wah - 2 * BORDERPX;
+	}
+	else {
+		c->x = c->rx;
+		c->y = c->ry;
+		c->w = c->rw;
+		c->h = c->rh;
+	}
+	resize(c, True);
+	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+/* extern */
+
+void (*arrange)(void) = DEFMODE;
+
+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
+dofloat(void) {
+	Client *c;
+
+	for(c = clients; c; c = c->next) {
+		if(isvisible(c)) {
+			resize(c, True);
+		}
+		else
+			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+	}
+	if(!sel || !isvisible(sel)) {
+		for(c = stack; c && !isvisible(c); c = c->snext);
+		focus(c);
+	}
+	restack();
+}
+
+void
+dotile(void) {
+	unsigned int i, n, mw, mh, tw, th;
+	Client *c;
+
+	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
+		n++;
+	/* window geoms */
+	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
+	mw = (n > nmaster) ? (waw * master) / 1000 : waw;
+	th = (n > nmaster) ? wah / (n - nmaster) : 0;
+	tw = waw - mw;
+
+	for(i = 0, c = clients; c; c = c->next)
+		if(isvisible(c)) {
+			if(c->isfloat) {
+				resize(c, True);
+				continue;
+			}
+			c->ismax = False;
+			c->x = wax;
+			c->y = way;
+			if(i < nmaster) {
+				c->y += i * mh;
+				c->w = mw - 2 * BORDERPX;
+				c->h = mh - 2 * BORDERPX;
+			}
+			else {  /* tile window */
+				c->x += mw;
+				c->w = tw - 2 * BORDERPX;
+				if(th - 2 * BORDERPX > bh) {
+					c->y += (i - nmaster) * th;
+					c->h = th - 2 * BORDERPX;
+				}
+				else /* fallback if th - 2 * BORDERPX < bh */
+					c->h = wah - 2 * BORDERPX;
+			}
+			resize(c, False);
+			i++;
+		}
+		else
+			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+	if(!sel || !isvisible(sel)) {
+		for(c = stack; c && !isvisible(c); c = c->snext);
+		focus(c);
+	}
+	restack();
+}
+
+void
+focusnext(Arg *arg) {
+	Client *c;
+   
+	if(!sel)
+		return;
+	if(!(c = getnext(sel->next)))
+		c = getnext(clients);
+	if(c) {
+		focus(c);
+		restack();
+	}
+}
+
+void
+focusprev(Arg *arg) {
+	Client *c;
+
+	if(!sel)
+		return;
+	if(!(c = getprev(sel->prev))) {
+		for(c = clients; c && c->next; c = c->next);
+		c = getprev(c);
+	}
+	if(c) {
+		focus(c);
+		restack();
+	}
+}
+
+void
+incnmaster(Arg *arg) {
+	if((arrange == dofloat) || (nmaster + arg->i < 1)
+		|| (wah / (nmaster + arg->i) - 2 * BORDERPX < bh))
+		return;
+	nmaster += arg->i;
+	if(sel)
+		arrange();
+	else
+		drawstatus();
+}
+
+Bool
+isvisible(Client *c) {
+	unsigned int i;
+
+	for(i = 0; i < ntags; i++)
+		if(c->tags[i] && seltag[i])
+			return True;
+	return False;
+}
+
+void
+resizemaster(Arg *arg) {
+	if(arg->i == 0)
+		master = MASTER;
+	else {
+		if(waw * (master + arg->i) / 1000 > waw - bh - 2 * BORDERPX
+			|| waw * (master + arg->i) / 1000 < bh + 2 * BORDERPX)
+			return;
+		master += arg->i;
+	}
+	arrange();
+}
+
+void
+restack(void) {
+	Client *c;
+	XEvent ev;
+
+	drawstatus();
+	if(!sel)
+		return;
+	if(sel->isfloat || arrange == dofloat)
+		XRaiseWindow(dpy, sel->win);
+	if(arrange != dofloat) {
+		if(!sel->isfloat)
+			XLowerWindow(dpy, sel->win);
+		for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
+			if(c == sel)
+				continue;
+			XLowerWindow(dpy, c->win);
+		}
+	}
+	XSync(dpy, False);
+	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+void
+togglefloat(Arg *arg) {
+	if (!sel || arrange == dofloat)
+		return;
+	sel->isfloat = !sel->isfloat;
+	arrange();
+}
+
+void
+togglemode(Arg *arg) {
+	arrange = (arrange == dofloat) ? dotile : dofloat;
+	if(sel)
+		arrange();
+	else
+		drawstatus();
+}
+
+void
+toggleview(Arg *arg) {
+	unsigned int i;
+
+	seltag[arg->i] = !seltag[arg->i];
+	for(i = 0; i < ntags && !seltag[i]; i++);
+	if(i == ntags)
+		seltag[arg->i] = True; /* cannot toggle last view */
+	arrange();
+}
+
+void
+view(Arg *arg) {
+	unsigned int i;
+
+	for(i = 0; i < ntags; i++)
+		seltag[i] = (arg->i == -1) ? True : False;
+	if(arg->i >= 0 && arg->i < ntags)
+		seltag[arg->i] = True;
+	arrange();
+}
+
+void
+zoom(Arg *arg) {
+	unsigned int n;
+	Client *c;
+
+	if(!sel)
+		return;
+	if(sel->isfloat || (arrange == dofloat)) {
+		togglemax(sel);
+		return;
+	}
+	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
+		n++;
+
+	if((c = sel) == nexttiled(clients))
+		if(!(c = nexttiled(c->next)))
+			return;
+	detach(c);
+	if(clients)
+		clients->prev = c;
+	c->next = clients;
+	clients = c;
+	focus(c);
+	arrange();
+}