avoid reverting the border if it's not necessary (avoids some flashing on view())

.hgtags

@@ -54,3 +54,7 @@ d6d3085307d8d98b8b012b669e858fd787befeb1 4.7
 607015ddb091d49cbd3457af41713691aa69f4d6 4.8
 22c669b2dd3673785c3476b9976da21e8783f745 4.9
 06eb9644e2dad7667d97495eb7d7bc62aa0429e8 5.0
+ce355cea9bb89e162f61913737a46908cdfa7e45 5.1
+e4bcaca8e6ef13d2c3b81f1218ad15e5da4d68bd 5.2
+4004d61160355d869a7d2672561caad440751ba0 5.3
+335301ed102fec9b1a15d06bfa0184d53b38fa54 5.3.1

LICENSE

@@ -7,6 +7,9 @@ MIT/X Consortium License
 © 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
 © 2007 Christof Musik <christof at sendfax dot de>
 © 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
+© 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
+© 2008 Martin Hurton <martin dot hurton at gmail dot com>
+© 2008 Neale Pickett <neale dot woozle dot org>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),

README

@@ -40,9 +40,10 @@ like this in your .xinitrc:
 
     while true
     do
-        echo `date` `uptime | sed 's/.*,//'`
+        xsetroot -name "`date` `uptime | sed 's/.*,//'`"
         sleep 1
-    done | dwm
+    done &
+    exec dwm
 
 
 Configuration

config.def.h

@@ -12,9 +12,12 @@ static unsigned int borderpx        = 1;        /* border pixel of windows */
 static unsigned int snap            = 32;       /* snap pixel */
 static Bool showbar                 = True;     /* False means no bar */
 static Bool topbar                  = True;     /* False means bottom bar */
+static Bool usegrab                 = False;    /* True means grabbing the X server
+                                                   during mouse-based resizals */
 
 /* tagging */
 static const char tags[][MAXTAGLEN] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
+static unsigned int tagset[] = {1, 1}; /* after start, first tag is selected */
 
 static Rule rules[] = {
 	/* class      instance    title       tags mask     isfloating */
@@ -23,7 +26,7 @@ static Rule rules[] = {
 };
 
 /* layout(s) */
-static float mfact      = 0.55;
+static float mfact      = 0.55; /* factor of master area size [0.05..0.95] */
 static Bool resizehints = True; /* False means respect size hints in tiled resizals */
 
 static Layout layouts[] = {

config.mk

@@ -1,5 +1,5 @@
 # dwm version
-VERSION = 5.1
+VERSION = 5.4
 
 # Customize below to fit your system
 
@@ -10,9 +10,9 @@ MANPREFIX = ${PREFIX}/share/man
 X11INC = /usr/X11R6/include
 X11LIB = /usr/X11R6/lib
 
-# Xinerama, comment if you don't want it
+# Xinerama, un-comment if you want it
-XINERAMALIBS = -L${X11LIB} -lXinerama
+#XINERAMALIBS = -L${X11LIB} -lXinerama
-XINERAMAFLAGS = -DXINERAMA
+#XINERAMAFLAGS = -DXINERAMA
 
 # includes and libs
 INCS = -I. -I/usr/include -I${X11INC}

dwm.1

@@ -20,13 +20,13 @@ 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 layout,
-the title of the focused window, and the text read from standard input. A
+the title of the focused window, and the text read from the root window name
-floating window is indicated with an empty square and a maximised
+property. A floating window is indicated with an empty square and a maximised
-floating window is indicated with a filled square before the windows
+floating window is indicated with a filled square before the windows title.
-title.  The selected tags are indicated with a different color. The tags of
+The selected tags are indicated with a different color. The tags of the focused
-the focused window are indicated with a filled square in the top left
+window are indicated with a filled square in the top left corner.  The tags
-corner.  The tags which are applied to one or more windows are indicated
+which are applied to one or more windows are indicated with an empty square in
-with an empty square in the top left corner.
+the top left corner.
 .P
 dwm draws a small border around windows to indicate the focus state.
 .SH OPTIONS

dwm.c

@@ -6,16 +6,13 @@
  * 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
+ * The event handlers of dwm are organized in an array which is accessed
- * status text from standard input, a select()-driven main loop has been
+ * whenever a new event has been fetched. This allows event dispatching
- * implemented which selects for reads on the X connection and STDIN_FILENO to
+ * in O(1) time.
- * 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
+ * linked client list, the focus history is remembered through a global
  * stack list. Each client contains a bit array to indicate the tags of a
  * client.
  *
@@ -26,11 +23,11 @@
 #include <errno.h>
 #include <locale.h>
 #include <stdarg.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/select.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <X11/cursorfont.h>
@@ -53,6 +50,8 @@
 #define MIN(a, b)               ((a) < (b) ? (a) : (b))
 #define MAXTAGLEN               16
 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
+#define WIDTH(x)                ((x)->w + 2 * (x)->bw)
+#define HEIGHT(x)               ((x)->h + 2 * (x)->bw)
 #define TAGMASK                 ((int)((1LL << LENGTH(tags)) - 1))
 #define TEXTW(x)                (textnw(x, strlen(x)) + dc.font.height)
 
@@ -60,7 +59,7 @@
 enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
 enum { ColBorder, ColFG, ColBG, ColLast };              /* color */
 enum { NetSupported, NetWMName, NetLast };              /* EWMH atoms */
-enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
+enum { WMProtocols, WMDelete, WMState, WMLast };        /* default atoms */
 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
        ClkClientWin, ClkRootWin, ClkLast };             /* clicks */
 
@@ -129,6 +128,7 @@ typedef struct {
 } Rule;
 
 /* function declarations */
+static void adjustborder(Client *c, unsigned int bw);
 static void applyrules(Client *c);
 static void arrange(void);
 static void attach(Client *c);
@@ -136,7 +136,7 @@ static void attachstack(Client *c);
 static void buttonpress(XEvent *e);
 static void checkotherwm(void);
 static void cleanup(void);
-static void clearurgent(void);
+static void clearurgent(Client *c);
 static void configure(Client *c);
 static void configurenotify(XEvent *e);
 static void configurerequest(XEvent *e);
@@ -159,9 +159,7 @@ static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
 static void grabbuttons(Client *c, Bool focused);
 static void grabkeys(void);
 static void initfont(const char *fontstr);
-static Bool isoccupied(unsigned int t);
 static Bool isprotodel(Client *c);
-static Bool isurgent(unsigned int t);
 static void keypress(XEvent *e);
 static void killclient(const Arg *arg);
 static void manage(Window w, XWindowAttributes *wa);
@@ -181,6 +179,8 @@ static void setclientstate(Client *c, long state);
 static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setup(void);
+static void showhide(Client *c, unsigned int ntiled);
+static void sigchld(int signal);
 static void spawn(const Arg *arg);
 static void tag(const Arg *arg);
 static int textnw(const char *text, unsigned int len);
@@ -193,7 +193,9 @@ static void unmanage(Client *c);
 static void unmapnotify(XEvent *e);
 static void updatebar(void);
 static void updategeom(void);
+static void updatenumlockmask(void);
 static void updatesizehints(Client *c);
+static void updatestatus(void);
 static void updatetitle(Client *c);
 static void updatewmhints(Client *c);
 static void view(const Arg *arg);
@@ -204,8 +206,10 @@ static void zoom(const Arg *arg);
 
 /* variables */
 static char stext[256];
-static int screen, sx, sy, sw, sh;
+static int screen;
-static int by, bh, blw, wx, wy, ww, wh;
+static int sx, sy, sw, sh; /* X display screen geometry x, y, width, height */ 
+static int by, bh, blw;    /* bar geometry y, height and layout symbol width */
+static int wx, wy, ww, wh; /* window area geometry x, y, width, height, bar excluded */
 static unsigned int seltags = 0, sellt = 0;
 static int (*xerrorxlib)(Display *, XErrorEvent *);
 static unsigned int numlockmask = 0;
@@ -224,15 +228,14 @@ static void (*handler[LASTEvent]) (XEvent *) = {
 	[UnmapNotify] = unmapnotify
 };
 static Atom wmatom[WMLast], netatom[NetLast];
-static Bool otherwm, readin;
+static Bool otherwm;
 static Bool running = True;
-static unsigned int tagset[] = {1, 1}; /* after start, first tag is selected */
 static Client *clients = NULL;
 static Client *sel = NULL;
 static Client *stack = NULL;
 static Cursor cursor[CurLast];
 static Display *dpy;
-static DC dc = {0};
+static DC dc;
 static Layout *lt[] = { NULL, NULL };
 static Window root, barwin;
 /* configuration, allows nested code to access above variables */
@@ -242,6 +245,16 @@ static Window root, barwin;
 struct NumTags { char limitexceeded[sizeof(unsigned int) * 8 < LENGTH(tags) ? -1 : 1]; };
 
 /* function implementations */
+void
+adjustborder(Client *c, unsigned int bw) {
+	XWindowChanges wc;
+
+	if(c->bw != bw) {
+		c->bw = wc.border_width = bw;
+		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc);
+	}
+}
+
 void
 applyrules(Client *c) {
 	unsigned int i;
@@ -249,38 +262,32 @@ applyrules(Client *c) {
 	XClassHint ch = { 0 };
 
 	/* rule matching */
-	XGetClassHint(dpy, c->win, &ch);
+	if(XGetClassHint(dpy, c->win, &ch)) {
-	for(i = 0; i < LENGTH(rules); i++) {
+		for(i = 0; i < LENGTH(rules); i++) {
-		r = &rules[i];
+			r = &rules[i];
-		if((!r->title || strstr(c->name, r->title))
+			if((!r->title || strstr(c->name, r->title))
-		&& (!r->class || (ch.res_class && strstr(ch.res_class, r->class)))
+			&& (!r->class || (ch.res_class && strstr(ch.res_class, r->class)))
-		&& (!r->instance || (ch.res_name && strstr(ch.res_name, r->instance)))) {
+			&& (!r->instance || (ch.res_name && strstr(ch.res_name, r->instance)))) {
-			c->isfloating = r->isfloating;
+				c->isfloating = r->isfloating;
-			c->tags |= r->tags & TAGMASK;
+				c->tags |= r->tags & TAGMASK ? r->tags & TAGMASK : tagset[seltags]; 
+			}
 		}
+		if(ch.res_class)
+			XFree(ch.res_class);
+		if(ch.res_name)
+			XFree(ch.res_name);
 	}
-	if(ch.res_class)
-		XFree(ch.res_class);
-	if(ch.res_name)
-		XFree(ch.res_name);
 	if(!c->tags)
 		c->tags = tagset[seltags];
 }
 
 void
 arrange(void) {
+	unsigned int nt;
 	Client *c;
 
-	for(c = clients; c; c = c->next)
+	for(nt = 0, c = nexttiled(clients); c; c = nexttiled(c->next), nt++);
-		if(ISVISIBLE(c)) {
+	showhide(stack, nt);
-			XMoveWindow(dpy, c->win, c->x, c->y);
-			if(!lt[sellt]->arrange || c->isfloating)
-				resize(c, c->x, c->y, c->w, c->h, True);
-		}
-		else {
-			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
-		}
-
 	focus(NULL);
 	if(lt[sellt]->arrange)
 		lt[sellt]->arrange();
@@ -329,30 +336,28 @@ buttonpress(XEvent *e) {
 	for(i = 0; i < LENGTH(buttons); i++)
 		if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
 		   && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
-			buttons[i].func(click == ClkTagBar ? &arg : &buttons[i].arg);
+			buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
 }
 
 void
 checkotherwm(void) {
 	otherwm = False;
-	XSetErrorHandler(xerrorstart);
+	xerrorxlib = XSetErrorHandler(xerrorstart);
 
 	/* this causes an error if some other window manager is running */
 	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
 	XSync(dpy, False);
 	if(otherwm)
 		die("dwm: another window manager is already running\n");
-	XSetErrorHandler(NULL);
+	XSetErrorHandler(xerror);
-	xerrorxlib = XSetErrorHandler(xerror);
 	XSync(dpy, False);
 }
 
 void
 cleanup(void) {
-	Arg a = {.i = ~0};
+	Arg a = {.ui = ~0};
 	Layout foo = { "", NULL };
 
-	close(STDIN_FILENO);
 	view(&a);
 	lt[sellt] = &foo;
 	while(stack)
@@ -373,20 +378,15 @@ cleanup(void) {
 }
 
 void
-clearurgent(void) {
+clearurgent(Client *c) {
 	XWMHints *wmh;
-	Client *c;
 
-	for(c = clients; c; c = c->next)
+	c->isurgent = False;
-		if(ISVISIBLE(c) && c->isurgent) {
+	if(!(wmh = XGetWMHints(dpy, c->win)))
-			c->isurgent = False;
+		return;
-			if (!(wmh = XGetWMHints(dpy, c->win)))
+	wmh->flags &= ~XUrgencyHint;
-				continue;
+	XSetWMHints(dpy, c->win, wmh);
-
+	XFree(wmh);
-			wmh->flags &= ~XUrgencyHint;
-			XSetWMHints(dpy, c->win, wmh);
-			XFree(wmh);
-		}
 }
 
 void
@@ -500,19 +500,23 @@ die(const char *errstr, ...) {
 
 void
 drawbar(void) {
-	int i, x;
+	int x;
+	unsigned int i, occ = 0, urg = 0;
+	unsigned long *col;
+	Client *c;
+
+	for(c = clients; c; c = c->next) {
+		occ |= c->tags;
+		if(c->isurgent)
+			urg |= c->tags;
+	}
 
 	dc.x = 0;
 	for(i = 0; i < LENGTH(tags); i++) {
 		dc.w = TEXTW(tags[i]);
-		if(tagset[seltags] & 1 << i) {
+		col = tagset[seltags] & 1 << i ? dc.sel : dc.norm;
-			drawtext(tags[i], dc.sel, isurgent(i));
+		drawtext(tags[i], col, urg & 1 << i);
-			drawsquare(sel && sel->tags & 1 << i, isoccupied(i), isurgent(i), dc.sel);
+		drawsquare(sel && sel->tags & 1 << i, occ & 1 << i, urg & 1 << i, col);
-		}
-		else {
-			drawtext(tags[i], dc.norm, isurgent(i));
-			drawsquare(sel && sel->tags & 1 << i, isoccupied(i), isurgent(i), dc.norm);
-		}
 		dc.x += dc.w;
 	}
 	if(blw > 0) {
@@ -565,24 +569,23 @@ drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
 
 void
 drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
+	char buf[256];
 	int i, x, y, h, len, olen;
 	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-	char buf[256];
 
 	XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
 	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 	if(!text)
 		return;
 	olen = strlen(text);
-	len = MIN(olen, sizeof buf);
-	memcpy(buf, text, len);
 	h = dc.font.ascent + dc.font.descent;
 	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 	x = dc.x + (h / 2);
 	/* shorten text if necessary */
-	for(; len && (i = textnw(buf, len)) > dc.w - h; len--);
+	for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
 	if(!len)
 		return;
+	memcpy(buf, text, len);
 	if(len < olen)
 		for(i = len; i && i > len - 3; buf[--i] = '.');
 	XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
@@ -622,6 +625,8 @@ focus(Client *c) {
 		XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
 	}
 	if(c) {
+		if(c->isurgent)
+			clearurgent(c);
 		detachstack(c);
 		attachstack(c);
 		grabbuttons(c, True);
@@ -732,46 +737,37 @@ gettextprop(Window w, Atom atom, char *text, unsigned int size) {
 
 void
 grabbuttons(Client *c, Bool focused) {
-	unsigned int i, j;
+	updatenumlockmask();
-	unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+	{
-
+		unsigned int i, j;
-	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
-	if(focused) {
+		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
-		for(i = 0; i < LENGTH(buttons); i++)
+		if(focused) {
-			if(buttons[i].click == ClkClientWin)
+			for(i = 0; i < LENGTH(buttons); i++)
-				for(j = 0; j < LENGTH(modifiers); j++)
+				if(buttons[i].click == ClkClientWin)
-					XGrabButton(dpy, buttons[i].button, buttons[i].mask | modifiers[j], c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
+					for(j = 0; j < LENGTH(modifiers); j++)
-        } else
+						XGrabButton(dpy, buttons[i].button, buttons[i].mask | modifiers[j], c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
-		XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
+		} else
-		            BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
+			XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
+			            BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
+	}
 }
 
 void
 grabkeys(void) {
-	unsigned int i, j;
+	updatenumlockmask();
-	KeyCode code;
+	{ /* grab keys */
-	XModifierKeymap *modmap;
+		unsigned int i, j;
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+		KeyCode code;
 
-	/* init modifier map */
+		XUngrabKey(dpy, AnyKey, AnyModifier, root);
-	modmap = XGetModifierMapping(dpy);
+		for(i = 0; i < LENGTH(keys); i++) {
-	for(i = 0; i < 8; i++)
+			if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
-		for(j = 0; j < modmap->max_keypermod; j++) {
+				for(j = 0; j < LENGTH(modifiers); j++)
-			if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
+					XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
-				numlockmask = (1 << i);
+						 True, GrabModeAsync, GrabModeAsync);
 		}
-	XFreeModifiermap(modmap);
-
-	XUngrabKey(dpy, AnyKey, AnyModifier, root);
-	for(i = 0; i < LENGTH(keys); i++) {
-		code = XKeysymToKeycode(dpy, keys[i].keysym);
-		XGrabKey(dpy, code, keys[i].mod, root, True,
-				GrabModeAsync, GrabModeAsync);
-		XGrabKey(dpy, code, keys[i].mod|LockMask, root, True,
-				GrabModeAsync, GrabModeAsync);
-		XGrabKey(dpy, code, keys[i].mod|numlockmask, root, True,
-				GrabModeAsync, GrabModeAsync);
-		XGrabKey(dpy, code, keys[i].mod|numlockmask|LockMask, root, True,
-				GrabModeAsync, GrabModeAsync);
 	}
 }
 
@@ -781,8 +777,6 @@ initfont(const char *fontstr) {
 	int i, n;
 
 	missing = NULL;
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
 	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
 	if(missing) {
 		while(n--)
@@ -803,9 +797,6 @@ initfont(const char *fontstr) {
 		}
 	}
 	else {
-		if(dc.font.xfont)
-			XFreeFont(dpy, dc.font.xfont);
-		dc.font.xfont = NULL;
 		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
 		&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
 			die("error, cannot load font: '%s'\n", fontstr);
@@ -815,16 +806,6 @@ initfont(const char *fontstr) {
 	dc.font.height = dc.font.ascent + dc.font.descent;
 }
 
-Bool
-isoccupied(unsigned int t) {
-	Client *c;
-
-	for(c = clients; c; c = c->next)
-		if(c->tags & 1 << t)
-			return True;
-	return False;
-}
-
 Bool
 isprotodel(Client *c) {
 	int i, n;
@@ -840,16 +821,6 @@ isprotodel(Client *c) {
 	return ret;
 }
 
-Bool
-isurgent(unsigned int t) {
-	Client *c;
-
-	for(c = clients; c; c = c->next)
-		if(c->isurgent && c->tags & 1 << t)
-			return True;
-	return False;
-}
-
 void
 keypress(XEvent *e) {
 	unsigned int i;
@@ -886,13 +857,14 @@ killclient(const Arg *arg) {
 
 void
 manage(Window w, XWindowAttributes *wa) {
+	static Client cz;
 	Client *c, *t = NULL;
-	Status rettrans;
+	Window trans = None;
-	Window trans;
 	XWindowChanges wc;
 
-	if(!(c = calloc(1, sizeof(Client))))
+	if(!(c = malloc(sizeof(Client))))
-		die("fatal: could not calloc() %u bytes\n", sizeof(Client));
+		die("fatal: could not malloc() %u bytes\n", sizeof(Client));
+	*c = cz;
 	c->win = w;
 
 	/* geometry */
@@ -907,10 +879,10 @@ manage(Window w, XWindowAttributes *wa) {
 		c->bw = 0;
 	}
 	else {
-		if(c->x + c->w + 2 * c->bw > sx + sw)
+		if(c->x + WIDTH(c) > sx + sw)
-			c->x = sx + sw - c->w - 2 * c->bw;
+			c->x = sx + sw - WIDTH(c);
-		if(c->y + c->h + 2 * c->bw > sy + sh)
+		if(c->y + HEIGHT(c) > sy + sh)
-			c->y = sy + sh - c->h - 2 * c->bw;
+			c->y = sy + sh - HEIGHT(c);
 		c->x = MAX(c->x, sx);
 		/* only fix client y-offset, if the client center might cover the bar */
 		c->y = MAX(c->y, ((by == 0) && (c->x + (c->w / 2) >= wx) && (c->x + (c->w / 2) < wx + ww)) ? bh : sy);
@@ -925,14 +897,14 @@ manage(Window w, XWindowAttributes *wa) {
 	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
 	grabbuttons(c, False);
 	updatetitle(c);
-	if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
+	if(XGetTransientForHint(dpy, w, &trans))
-		for(t = clients; t && t->win != trans; t = t->next);
+		t = getclient(trans);
 	if(t)
 		c->tags = t->tags;
 	else
 		applyrules(c);
 	if(!c->isfloating)
-		c->isfloating = (rettrans == Success) || c->isfixed;
+		c->isfloating = trans != None || c->isfixed;
 	if(c->isfloating)
 		XRaiseWindow(dpy, c->win);
 	attach(c);
@@ -967,10 +939,14 @@ maprequest(XEvent *e) {
 
 void
 monocle(void) {
+	unsigned int n;
 	Client *c;
 
-	for(c = nexttiled(clients); c; c = nexttiled(c->next))
+	for(n = 0, c = nexttiled(clients); c && n < 2; c = nexttiled(c->next), n++);
+	for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
+		adjustborder(c, n == 1 ? 0 : borderpx);
 		resize(c, wx, wy, ww - 2 * c->bw, wh - 2 * c->bw, resizehints);
+	}
 }
 
 void
@@ -984,37 +960,35 @@ movemouse(const Arg *arg) {
 	if(!(c = sel))
 		return;
 	restack();
-	ocx = nx = c->x;
+	ocx = c->x;
-	ocy = ny = c->y;
+	ocy = c->y;
 	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
 	None, cursor[CurMove], CurrentTime) != GrabSuccess)
 		return;
 	XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui);
-	for(;;) {
+	if(usegrab)
+		XGrabServer(dpy);
+	do {
 		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
 		switch (ev.type) {
-		case ButtonRelease:
-			XUngrabPointer(dpy, CurrentTime);
-			return;
 		case ConfigureRequest:
 		case Expose:
 		case MapRequest:
 			handler[ev.type](&ev);
 			break;
 		case MotionNotify:
-			XSync(dpy, False);
 			nx = ocx + (ev.xmotion.x - x);
 			ny = ocy + (ev.xmotion.y - y);
 			if(snap && nx >= wx && nx <= wx + ww
 			        && ny >= wy && ny <= wy + wh) {
 				if(abs(wx - nx) < snap)
 					nx = wx;
-				else if(abs((wx + ww) - (nx + c->w + 2 * c->bw)) < snap)
+				else if(abs((wx + ww) - (nx + WIDTH(c))) < snap)
-					nx = wx + ww - c->w - 2 * c->bw;
+					nx = wx + ww - WIDTH(c);
 				if(abs(wy - ny) < snap)
 					ny = wy;
-				else if(abs((wy + wh) - (ny + c->h + 2 * c->bw)) < snap)
+				else if(abs((wy + wh) - (ny + HEIGHT(c))) < snap)
-					ny = wy + wh - c->h - 2 * c->bw;
+					ny = wy + wh - HEIGHT(c);
 				if(!c->isfloating && lt[sellt]->arrange && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
 					togglefloating(NULL);
 			}
@@ -1023,6 +997,10 @@ movemouse(const Arg *arg) {
 			break;
 		}
 	}
+	while(ev.type != ButtonRelease);
+	if(usegrab)
+		XUngrabServer(dpy);
+	XUngrabPointer(dpy, CurrentTime);
 }
 
 Client *
@@ -1037,9 +1015,11 @@ propertynotify(XEvent *e) {
 	Window trans;
 	XPropertyEvent *ev = &e->xproperty;
 
-	if(ev->state == PropertyDelete)
+	if((ev->window == root) && (ev->atom = XA_WM_NAME))
+		updatestatus();
+	else if(ev->state == PropertyDelete)
 		return; /* ignore */
-	if((c = getclient(ev->window))) {
+	else if((c = getclient(ev->window))) {
 		switch (ev->atom) {
 		default: break;
 		case XA_WM_TRANSIENT_FOR:
@@ -1065,7 +1045,7 @@ propertynotify(XEvent *e) {
 
 void
 quit(const Arg *arg) {
-	readin = running = False;
+	running = False;
 }
 
 void
@@ -1073,22 +1053,31 @@ resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
 	XWindowChanges wc;
 
 	if(sizehints) {
+		/* see last two sentences in ICCCM 4.1.2.3 */
+		Bool baseismin = c->basew == c->minw && c->baseh == c->minh;
+
 		/* set minimum possible */
 		w = MAX(1, w);
 		h = MAX(1, h);
 
-		/* temporarily remove base dimensions */
+		if(!baseismin) { /* temporarily remove base dimensions */
-		w -= c->basew;
+			w -= c->basew;
-		h -= c->baseh;
+			h -= c->baseh;
+		}
 
 		/* adjust for aspect limits */
 		if(c->mina > 0 && c->maxa > 0) {
-			if(c->maxa < (float) w/h)
+			if(c->maxa < (float)w / h)
 				w = h * c->maxa;
-			else if(c->mina > (float) h/w)
+			else if(c->mina < (float)h / w)
 				h = w * c->mina;
 		}
 
+		if(baseismin) { /* increment calculation requires this */
+			w -= c->basew;
+			h -= c->baseh;
+		}
+
 		/* adjust for increment value */
 		if(c->incw)
 			w -= w % c->incw;
@@ -1111,9 +1100,9 @@ resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
 	if(w <= 0 || h <= 0)
 		return;
 	if(x > sx + sw)
-		x = sw - w - 2 * c->bw;
+		x = sw - WIDTH(c);
 	if(y > sy + sh)
-		y = sh - h - 2 * c->bw;
+		y = sh - HEIGHT(c);
 	if(x + w + 2 * c->bw < sx)
 		x = sx;
 	if(y + h + 2 * c->bw < sy)
@@ -1151,22 +1140,17 @@ resizemouse(const Arg *arg) {
 	None, cursor[CurResize], CurrentTime) != GrabSuccess)
 		return;
 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
-	for(;;) {
+	if(usegrab)
-		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask , &ev);
+		XGrabServer(dpy);
+	do {
+		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
 		switch(ev.type) {
-		case ButtonRelease:
-			XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
-					c->w + c->bw - 1, c->h + c->bw - 1);
-			XUngrabPointer(dpy, CurrentTime);
-			while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-			return;
 		case ConfigureRequest:
 		case Expose:
 		case MapRequest:
 			handler[ev.type](&ev);
 			break;
 		case MotionNotify:
-			XSync(dpy, False);
 			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
 			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
 
@@ -1181,6 +1165,12 @@ resizemouse(const Arg *arg) {
 			break;
 		}
 	}
+	while(ev.type != ButtonRelease);
+	if(usegrab)
+		XUngrabServer(dpy);
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+	XUngrabPointer(dpy, CurrentTime);
+	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 }
 
 void
@@ -1209,71 +1199,22 @@ restack(void) {
 
 void
 run(void) {
-	char *p;
-	char sbuf[sizeof stext];
-	fd_set rd;
-	int r, xfd;
-	unsigned int len, offset;
 	XEvent ev;
 
-	/* main event loop, also reads status text from stdin */
+	/* main event loop */
 	XSync(dpy, False);
-	xfd = ConnectionNumber(dpy);
+	while(running && !XNextEvent(dpy, &ev)) {
-	readin = True;
+		if(handler[ev.type])
-	offset = 0;
+			(handler[ev.type])(&ev); /* call handler */
-	len = sizeof stext - 1;
-	sbuf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
-	while(running) {
-		FD_ZERO(&rd);
-		if(readin)
-			FD_SET(STDIN_FILENO, &rd);
-		FD_SET(xfd, &rd);
-		if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
-			if(errno == EINTR)
-				continue;
-			die("select failed\n");
-		}
-		if(FD_ISSET(STDIN_FILENO, &rd)) {
-			switch((r = read(STDIN_FILENO, sbuf + offset, len - offset))) {
-			case -1:
-				strncpy(stext, strerror(errno), len);
-				readin = False;
-				break;
-			case 0:
-				strncpy(stext, "EOF", 4);
-				readin = False;
-				break;
-			default:
-				for(p = sbuf + offset; r > 0; p++, r--, offset++)
-					if(*p == '\n' || *p == '\0') {
-						*p = '\0';
-						strncpy(stext, sbuf, len);
-						p += r - 1; /* p is sbuf + offset + r - 1 */
-						for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
-						offset = r;
-						if(r)
-							memmove(sbuf, p - r + 1, r);
-						break;
-					}
-				break;
-			}
-			drawbar();
-		}
-		while(XPending(dpy)) {
-			XNextEvent(dpy, &ev);
-			if(handler[ev.type])
-				(handler[ev.type])(&ev); /* call handler */
-		}
 	}
 }
 
 void
 scan(void) {
 	unsigned int i, num;
-	Window *wins, d1, d2;
+	Window d1, d2, *wins = NULL;
 	XWindowAttributes wa;
 
-	wins = NULL;
 	if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
 		for(i = 0; i < num; i++) {
 			if(!XGetWindowAttributes(dpy, wins[i], &wa)
@@ -1289,9 +1230,9 @@ scan(void) {
 			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
 				manage(wins[i], &wa);
 		}
+		if(wins)
+			XFree(wins);
 	}
-	if(wins)
-		XFree(wins);
 }
 
 void
@@ -1350,7 +1291,6 @@ setup(void) {
 	/* init atoms */
 	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
 	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
-	wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
 	wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
 	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
 	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
@@ -1388,8 +1328,7 @@ setup(void) {
 			CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
 	XDefineCursor(dpy, barwin, cursor[CurNormal]);
 	XMapRaised(dpy, barwin);
-	strcpy(stext, "dwm-"VERSION);
+	updatestatus();
-	drawbar();
 
 	/* EWMH support per view */
 	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
@@ -1397,31 +1336,50 @@ setup(void) {
 
 	/* select for events */
 	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
-			|EnterWindowMask|LeaveWindowMask|StructureNotifyMask;
+			|EnterWindowMask|LeaveWindowMask|StructureNotifyMask
+			|PropertyChangeMask;
 	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
 	XSelectInput(dpy, root, wa.event_mask);
 
-
-	/* grab keys */
 	grabkeys();
 }
 
+void
+showhide(Client *c, unsigned int ntiled) {
+	if(!c)
+		return;
+	if(ISVISIBLE(c)) { /* show clients top down */
+		if(ntiled > 1) /* avoid unnecessary border reverts */
+			adjustborder(c, borderpx);
+		XMoveWindow(dpy, c->win, c->x, c->y);
+		if(!lt[sellt]->arrange || c->isfloating)
+			resize(c, c->x, c->y, c->w, c->h, True);
+		showhide(c->snext, ntiled);
+	}
+	else { /* hide clients bottom up */
+		showhide(c->snext, ntiled);
+		XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+	}
+}
+
+
+void
+sigchld(int signal) {
+	while(0 < waitpid(-1, NULL, WNOHANG));
+}
+
 void
 spawn(const Arg *arg) {
-	/* The double-fork construct avoids zombie processes and keeps the code
+	signal(SIGCHLD, sigchld);
-	 * clean from stupid signal handlers. */
 	if(fork() == 0) {
-		if(fork() == 0) {
+		if(dpy)
-			if(dpy)
+			close(ConnectionNumber(dpy));
-				close(ConnectionNumber(dpy));
+		setsid();
-			setsid();
+		execvp(((char **)arg->v)[0], (char **)arg->v);
-			execvp(((char **)arg->v)[0], (char **)arg->v);
+		fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
-			fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
+		perror(" failed");
-			perror(" failed");
-		}
 		exit(0);
 	}
-	wait(0);
 }
 
 void
@@ -1456,6 +1414,7 @@ tile(void) {
 	/* master */
 	c = nexttiled(clients);
 	mw = mfact * ww;
+	adjustborder(c, n == 1 ? 0 : borderpx);
 	resize(c, wx, wy, (n == 1 ? ww : mw) - 2 * c->bw, wh - 2 * c->bw, resizehints);
 
 	if(--n == 0)
@@ -1470,10 +1429,11 @@ tile(void) {
 		h = wh;
 
 	for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
+		adjustborder(c, borderpx);
 		resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
-		       ? (wy + wh) - y : h) - 2 * c->bw, resizehints);
+		       ? wy + wh - y - 2 * c->bw : h - 2 * c->bw), resizehints);
 		if(h != wh)
-			y = c->y + c->h + 2 * c->bw;
+			y = c->y + HEIGHT(c);
 	}
 }
 
@@ -1497,8 +1457,12 @@ togglefloating(const Arg *arg) {
 
 void
 toggletag(const Arg *arg) {
-	unsigned int mask = sel->tags ^ (arg->ui & TAGMASK);
+	unsigned int mask;
 
+	if (!sel)
+		return;
+	
+	mask = sel->tags ^ (arg->ui & TAGMASK);
 	if(sel && mask) {
 		sel->tags = mask;
 		arrange();
@@ -1511,7 +1475,6 @@ toggleview(const Arg *arg) {
 
 	if(mask) {
 		tagset[seltags] = mask;
-		clearurgent();
 		arrange();
 	}
 }
@@ -1591,12 +1554,28 @@ updategeom(void) {
 	by = showbar ? (topbar ? wy - bh : wy + wh) : -bh;
 }
 
+void
+updatenumlockmask(void) {
+	unsigned int i, j;
+	XModifierKeymap *modmap;
+
+	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);
+	XFreeModifiermap(modmap);
+}
+
 void
 updatesizehints(Client *c) {
 	long msize;
 	XSizeHints size;
 
-	XGetWMNormalHints(dpy, c->win, &size, &msize);
+	if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
+		/* size is uninitialized, ensure that size.flags aren't used */
+		size.flags = PSize; 
 	if(size.flags & PBaseSize) {
 		c->basew = size.base_width;
 		c->baseh = size.base_height;
@@ -1636,13 +1615,20 @@ updatesizehints(Client *c) {
 	else
 		c->maxa = c->mina = 0.0;
 	c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
-			&& c->maxw == c->minw && c->maxh == c->minh);
+	             && c->maxw == c->minw && c->maxh == c->minh);
 }
 
 void
 updatetitle(Client *c) {
 	if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
-		gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
+		gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
+}
+
+void
+updatestatus() {
+	if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
+		strcpy(stext, "dwm-"VERSION);
+	drawbar();
 }
 
 void
@@ -1650,7 +1636,7 @@ updatewmhints(Client *c) {
 	XWMHints *wmh;
 
 	if((wmh = XGetWMHints(dpy, c->win))) {
-		if(ISVISIBLE(c) && wmh->flags & XUrgencyHint) {
+		if(c == sel && wmh->flags & XUrgencyHint) {
 			wmh->flags &= ~XUrgencyHint;
 			XSetWMHints(dpy, c->win, wmh);
 		}
@@ -1663,12 +1649,11 @@ updatewmhints(Client *c) {
 
 void
 view(const Arg *arg) {
-	if(arg && (arg->i & TAGMASK) == tagset[seltags])
+	if((arg->ui & TAGMASK) == tagset[seltags])
 		return;
 	seltags ^= 1; /* toggle sel tagset */
-	if(arg && (arg->ui & TAGMASK))
+	if(arg->ui & TAGMASK)
-		tagset[seltags] = arg->i & TAGMASK;
+		tagset[seltags] = arg->ui & TAGMASK;
-	clearurgent();
 	arrange();
 }