wmii

commit fbacdbcf94ea04e914678fb7937c4c50ef02fd15
parent e4e85ed3a0c13b8944182c235229db82684a60d7
Author: Anselm R. Garbe <arg@suckless.org>
Date:   Fri, 20 Oct 2006 10:07:55 +0200

renamed wm.h into wmii.h

Diffstat:
Makefile
 | 
6
+++---
area.c
 | 
2
+-
bar.c
 | 
2
+-
client.c
 | 
2
+-
column.c
 | 
2
+-
draw.c
 | 
2
+-
event.c
 | 
2
+-
frame.c
 | 
2
+-
fs.c
 | 
2
+-
geom.c
 | 
2
+-
key.c
 | 
2
+-
mouse.c
 | 
2
+-
rule.c
 | 
2
+-
view.c
 | 
2
+-
wm.c
 | 
359
-------------------------------------------------------------------------------
wm.h
 | 
383
-------------------------------------------------------------------------------
wmii.c
 | 
359
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
wmii.h
 | 
383
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

18 files changed, 758 insertions(+), 758 deletions(-)
diff --git a/Makefile b/Makefile
@@ -4,7 +4,7 @@
 include config.mk
 
 SRC = area.c bar.c client.c column.c draw.c event.c \
-	frame.c fs.c geom.c key.c mouse.c rule.c view.c wm.c
+	frame.c fs.c geom.c key.c mouse.c rule.c view.c wmii.c
 OBJ = ${SRC:.c=.o}
 
 all: options wmiiwm
@@ -20,7 +20,7 @@ options:
 	@echo CC $<
 	@${CC} -c ${CFLAGS} $<
 
-${OBJ}: wm.h config.mk
+${OBJ}: wmii.h config.mk
 
 wmiiwm: ${OBJ}
 	@echo LD $@
@@ -35,7 +35,7 @@ dist: clean
 	@echo creating dist tarball
 	@mkdir -p wmii-${VERSION}
 	@cp -R LICENSE Makefile README wmii config.mk rc \
-		wmii.1 wmiiwm.1 wm.h ${SRC} wmii-${VERSION}
+		wmii.1 wmiiwm.1 wmii.h ${SRC} wmii-${VERSION}
 	@tar -cf wmii-${VERSION}.tar wmii-${VERSION}
 	@gzip wmii-${VERSION}.tar
 	@rm -rf wmii-${VERSION}
diff --git a/area.c b/area.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <assert.h>
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/bar.c b/bar.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <math.h>
 #include <string.h>
 #include <stdlib.h>
diff --git a/client.c b/client.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/column.c b/column.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/draw.c b/draw.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/event.c b/event.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <fcntl.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/frame.c b/frame.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/fs.c b/fs.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMVI Kris Maglione <fbsdaemon at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <assert.h>
 #include <stdarg.h>
 #include <stdio.h>
diff --git a/geom.c b/geom.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <math.h>
 
 Bool
diff --git a/key.c b/key.c
@@ -1,7 +1,7 @@
 /* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <string.h>
 #include <stdlib.h>
 #include <X11/Xlib.h>
diff --git a/mouse.c b/mouse.c
@@ -2,7 +2,7 @@
  * (C)opyright MMVI Kris Maglione <fbsdaemon@gmail.com>
  * See LICENSE file for license details.
  */
-#include "wm.h"
+#include "wmii.h"
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
diff --git a/rule.c b/rule.c
@@ -6,7 +6,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <sys/types.h>
-#include "wm.h"
+#include "wmii.h"
 
 /* basic rule matching language /regex/ -> value
  * regex might contain POSIX regex syntax defined in regex(3) */
diff --git a/view.c b/view.c
@@ -7,7 +7,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "wm.h"
+#include "wmii.h"
 
 static Bool
 is_empty(View *v) {
diff --git a/wm.c b/wm.c
@@ -1,359 +0,0 @@
-/* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
-#include "wm.h"
-#include <errno.h>
-#include <fcntl.h>
-#include <pwd.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <X11/cursorfont.h>
-#include <X11/Xproto.h>
-#include <X11/keysym.h>
-#include <X11/Xatom.h>
-#include <X11/Xproto.h>
-
-static int other_wm_running;
-static int (*x_error_handler) (Display *, XErrorEvent *);
-static char version[] = "wmiiwm - " VERSION ", (C)opyright MMIV-MMVI Anselm R. Garbe\n";
-
-static void
-usage() {
-	fputs("usage: wmiiwm -a <address> [-r <wmiirc>] [-v]\n", stderr);
-	exit(1);
-}
-
-static void
-scan_wins() {
-	int i;
-	unsigned int num;
-	Window *wins;
-	XWindowAttributes wa;
-	Window d1, d2;
-
-	if(XQueryTree(blz.dpy, blz.root, &d1, &d2, &wins, &num)) {
-		for(i = 0; i < num; i++) {
-			if(!XGetWindowAttributes(blz.dpy, wins[i], &wa))
-				continue;
-			if(wa.override_redirect || XGetTransientForHint(blz.dpy, wins[i], &d1))
-				continue;
-			if(wa.map_state == IsViewable)
-				manage_client(create_client(wins[i], &wa));
-		}
-	}
-	if(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;
-
-	status = XGetWindowProperty(blz.dpy, w, a, 0L, l, False, t, &real, &format,
-			&res, &extra, prop);
-	if(status != Success || *prop == 0) {
-		return 0;
-	}
-	if(res == 0) {
-		free((void *) *prop);
-	}
-	return res;
-}
-
-int
-win_proto(Window w) {
-	Atom *protocols;
-	long res;
-	int protos = 0;
-	int i;
-
-	res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L,
-			((unsigned char **) &protocols));
-	if(res <= 0) {
-		return protos;
-	}
-	for(i = 0; i < res; i++) {
-		if(protocols[i] == wm_atom[WMDelete])
-			protos |= WM_PROTOCOL_DELWIN;
-	}
-	free((char *) protocols);
-	return protos;
-}
-
-
-static void
-init_atoms() {
-	wm_atom[WMProtocols] = XInternAtom(blz.dpy, "WM_PROTOCOLS", False);
-	wm_atom[WMDelete] = XInternAtom(blz.dpy, "WM_DELETE_WINDOW", False);
-	net_atom[NetSupported] = XInternAtom(blz.dpy, "_NET_SUPPORTED", False);
-	net_atom[NetWMName] = XInternAtom(blz.dpy, "_NET_WM_NAME", False);
-	tags_atom = XInternAtom(blz.dpy, "_WIN_TAGS", False);
-	XChangeProperty(blz.dpy, blz.root, net_atom[NetSupported], XA_ATOM, 32,
-			PropModeReplace, (unsigned char *) net_atom, NetLast);
-}
-
-static void
-init_cursors() {
-	cursor[CurNormal] = XCreateFontCursor(blz.dpy, XC_left_ptr);
-	cursor[CurResize] = XCreateFontCursor(blz.dpy, XC_sizing);
-	cursor[CurMove] = XCreateFontCursor(blz.dpy, XC_fleur);
-	cursor[CurInput] = XCreateFontCursor(blz.dpy, XC_xterm);
-}
-
-static void
-init_screen(WMScreen *screen) {
-	Window w;
-	int ret;
-	unsigned mask;
-	XGCValues gcv;
-
-	gcv.subwindow_mode = IncludeInferiors;
-	gcv.function = GXxor;
-	gcv.foreground = def.selcolor.bg;
-	gcv.plane_mask = AllPlanes;
-	gcv.graphics_exposures = False;
-	xorgc = XCreateGC(blz.dpy, blz.root, GCForeground | GCGraphicsExposures |
-						GCFunction | GCSubwindowMode | GCPlaneMask, &gcv);
-	screen->rect.x = screen->rect.y = 0;
-	screen->rect.width = DisplayWidth(blz.dpy, blz.screen);
-	screen->rect.height = DisplayHeight(blz.dpy, blz.screen);
-	def.snap = screen->rect.height / 63;
-	sel_screen = XQueryPointer(blz.dpy, blz.root, &w, &w, &ret, &ret, &ret, &ret, &mask);
-}
-
-/*
- * 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
-wmii_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, "wmiiwm: fatal error: Xrequest code=%d, Xerror code=%d\n",
-			error->request_code, error->error_code);
-	return x_error_handler(blz.dpy, error); /* calls 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 = 1;
-	return -1;
-}
-
-static void
-cleanup() {
-	Client *c;
-
-	for(c=client; c; c=c->next)
-		reparent_client(c, blz.root, c->sel->rect.x, c->sel->rect.y);
-	XSetInputFocus(blz.dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
-	XSync(blz.dpy, False);
-}
-
-int
-main(int argc, char *argv[]) {
-	int i;
-	char *address = NULL, *wmiirc = NULL, *namespace, *errstr;
-	WMScreen *s;
-	struct passwd *passwd;
-	XSetWindowAttributes wa;
-
-	/* command line args */
-	for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
-		switch (argv[i][1]) {
-		case 'v':
-			fprintf(stdout, "%s", version);
-			exit(0);
-			break;
-		case 'a':
-			if(i + 1 < argc)
-				address = argv[++i];
-			else
-				usage();
-			break;
-		case 'r':
-			if(i + 1 < argc)
-				wmiirc = argv[++i];
-			else
-				usage();
-			break;
-		default:
-			usage();
-			break;
-		}
-	}
-	starting = True;
-	blz.dpy = XOpenDisplay(0);
-	if(!blz.dpy)
-		ixp_eprint("wmiiwm: cannot open dpy\n");
-	blz.screen = DefaultScreen(blz.dpy);
-	blz.root = RootWindow(blz.dpy, blz.screen);
-	/* check if another WM is already running */
-	other_wm_running = 0;
-	XSetErrorHandler(startup_error_handler);
-	/* this causes an error if some other WM is running */
-	XSelectInput(blz.dpy, blz.root, SubstructureRedirectMask | EnterWindowMask);
-	XSync(blz.dpy, False);
-	if(other_wm_running)
-		ixp_eprint("wmiiwm: another window manager is already running\n");
-	if(!address)
-		usage();
-	/* Check namespace permissions */
-	if(!strncmp(address, "unix!", 5)) {
-		struct stat st;
-		namespace = ixp_estrdup(&address[5]);
-		for(i = strlen(namespace) - 1; i >= 0; i--)
-			if(namespace[i] == '/') break;
-		namespace[i+1] = '\0';
-		if(stat(namespace, &st))
-			ixp_eprint("wmiiwm: can't stat namespace directory \"%s\": %s\n",
-					namespace, strerror(errno));
-		if(getuid() != st.st_uid)
-			ixp_eprint("wmiiwm: namespace directory \"%s\" exists, but is not owned by you",
-				namespace);
-		if(st.st_mode & 077)
-			ixp_eprint("wmiiwm: namespace directory \"%s\" exists, "
-				"but has group or world permissions",
-				namespace);
-		free(namespace);
-	}
-	XSetErrorHandler(0);
-	x_error_handler = XSetErrorHandler(wmii_error_handler);
-	errstr = NULL;
-	i = ixp_create_sock(address, &errstr);
-	if(i < 0)
-		ixp_eprint("wmiiwm: fatal: %s\n", errstr);
-
-	/* start wmiirc */
-	if(wmiirc) {
-		int name_len = strlen(wmiirc) + 6;
-		char execstr[name_len];
-		switch(fork()) {
-		case 0:
-			if(setsid() == -1)
-				ixp_eprint("wmiim: can't setsid: %s\n", strerror(errno));
-			close(i);
-			close(ConnectionNumber(blz.dpy));
-			snprintf(execstr, name_len, "exec %s", wmiirc);
-			execl("/bin/sh", "sh", "-c", execstr, NULL);
-			ixp_eprint("wmiiwm: can't exec \"%s\": %s\n", wmiirc, strerror(errno));
-		case -1:
-			perror("wmiiwm: cannot fork wmiirc");
-		default:
-			break;
-		}
-	}
-
-	/* IXP server */
-	ixp_server_open_conn(&srv, i, &p9srv, serve_9pcon, NULL);
-	/* X server */
-	ixp_server_open_conn(&srv, ConnectionNumber(blz.dpy), NULL, check_x_event, NULL);
-	view = NULL;
-	client = NULL;
-	key = NULL;
-	passwd = getpwuid(getuid());
-	user = ixp_estrdup(passwd->pw_name);
-	def.colrules.string = NULL;
-	def.colrules.size = 0;
-	def.tagrules.string = NULL;
-	def.tagrules.size = 0;
-	def.keys = NULL;
-	def.keyssz = 0;
-	def.font.fontstr = ixp_estrdup(BLITZ_FONT);
-	def.border = 2;
-	def.colmode = Coldefault;
-	strncpy(def.selcolor.colstr, BLITZ_SELCOLORS, sizeof(def.selcolor.colstr));
-	loadcolor(&blz, &def.selcolor);
-	strncpy(def.normcolor.colstr, BLITZ_NORMCOLORS, sizeof(def.normcolor.colstr));
-	loadcolor(&blz, &def.normcolor);
-	strncpy(def.bcolor[0].colstr, BLITZ_B1COLORS, sizeof(def.bcolor[0].colstr));
-	strncpy(def.bcolor[1].colstr, BLITZ_B2COLORS, sizeof(def.bcolor[1].colstr));
-	strncpy(def.bcolor[2].colstr, BLITZ_B3COLORS, sizeof(def.bcolor[2].colstr));
-	loadcolor(&blz, &def.bcolor[0]);
-	loadcolor(&blz, &def.bcolor[1]);
-	loadcolor(&blz, &def.bcolor[2]);
-	strncpy(def.grabmod, "Mod1", sizeof(def.grabmod));
-	def.mod = Mod1Mask;
-	init_atoms();
-	init_cursors();
-	loadfont(&blz, &def.font);
-	init_lock_keys();
-	num_screens = 1;
-	screens = ixp_emallocz(num_screens * sizeof(*screens));
-	for(i = 0; i < num_screens; i++) {
-		s = &screens[i];
-		s->lbar = NULL;
-		s->rbar = NULL;
-		s->sel = NULL;
-		init_screen(s);
-		pmap = XCreatePixmap(blz.dpy, blz.root, s->rect.width, s->rect.height,
-				DefaultDepth(blz.dpy, blz.screen));
-		wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
-		wa.cursor = cursor[CurNormal];
-		XChangeWindowAttributes(blz.dpy, blz.root, CWEventMask | CWCursor, &wa);
-		wa.override_redirect = 1;
-		wa.background_pixmap = ParentRelative;
-		wa.event_mask = ExposureMask | ButtonReleaseMask
-			| SubstructureRedirectMask | SubstructureNotifyMask;
-		s->brect = s->rect;
-		s->brect.height = labelh(&def.font);
-		s->brect.y = s->rect.height - s->brect.height;
-		s->barwin = XCreateWindow(blz.dpy, RootWindow(blz.dpy, blz.screen),
-				s->brect.x, s->brect.y,
-				s->brect.width, s->brect.height, 0,
-				DefaultDepth(blz.dpy, blz.screen),
-				CopyFromParent, DefaultVisual(blz.dpy, blz.screen),
-				CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
-		XSync(blz.dpy, False);
-		s->bbrush.blitz = &blz;
-		s->bbrush.gc = XCreateGC(blz.dpy, s->barwin, 0, 0);
-		s->bbrush.drawable = pmap;
-		s->bbrush.rect = s->brect;
-		s->bbrush.rect.x = 0;
-		s->bbrush.rect.y = 0;
-		s->bbrush.color = def.normcolor;
-		s->bbrush.font = &def.font;
-		s->bbrush.border = True;
-		draw_bar(s);
-		XMapRaised(blz.dpy, s->barwin);
-	}
-
-	screen = &screens[0];
-	scan_wins();
-	update_views();
-	starting = False;
-
-	/* main event loop */
-	errstr = ixp_server_loop(&srv);
-	if(errstr)
-		fprintf(stderr, "wmii: fatal: %s\n", errstr);
-	cleanup();
-	XCloseDisplay(blz.dpy);
-	ixp_server_close(&srv);
-	return errstr ? 1 : 0;
-}
diff --git a/wm.h b/wm.h
@@ -1,383 +0,0 @@
-/*
- * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
-
-#include <stdio.h>
-#include <regex.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/Xlocale.h>
-
-#include <ixp.h>
-
-#define BLITZ_FONT		"fixed"
-#define BLITZ_SELCOLORS		"#ffffff #335577 #447799"
-#define BLITZ_NORMCOLORS	"#222222 #eeeeee #666666"
-#define BLITZ_B1COLORS		"#000000 #00ffff #000000"
-#define BLITZ_B2COLORS		"#000000 #ff0000 #000000"
-#define BLITZ_B3COLORS		"#000000 #00ff00 #000000"
-
-typedef struct Blitz Blitz;
-typedef enum BlitzAlign BlitzAlign;
-typedef struct BlitzColor BlitzColor;
-typedef struct BlitzFont BlitzFont;
-typedef struct BlitzBrush BlitzBrush;
-typedef struct BlitzInput BlitzInput;
-
-struct Blitz {
-	Display *dpy;
-	int screen;
-	Window root;
-};
-
-enum BlitzAlign {
-	NORTH = 0x01,
-	EAST  = 0x02,
-	SOUTH = 0x04,
-	WEST  = 0x08,
-	NEAST = NORTH | EAST,
-	NWEST = NORTH | WEST,
-	SEAST = SOUTH | EAST,
-	SWEST = SOUTH | WEST,
-	CENTER = NEAST | SWEST
-};
-
-struct BlitzColor {
-	unsigned long bg;
-	unsigned long fg;
-	unsigned long border;
-	char colstr[24]; /* #RRGGBB #RRGGBB #RRGGBB */
-};
-
-struct BlitzFont {
-	XFontStruct *xfont;
-	XFontSet set;
-	int ascent;
-	int descent;
-	unsigned int height;
-	char *fontstr;
-};
-
-struct BlitzBrush {
-	Blitz *blitz;
-	Drawable drawable;
-	GC gc;
-	Bool border;
-	BlitzColor color;
-	BlitzAlign align;
-	BlitzFont *font;
-	XRectangle rect;	/* relative rect */
-};
-
-/* WM atoms */
-enum { WMProtocols, WMDelete, WMLast };
-
-/* NET atoms */
-enum { NetSupported, NetWMName, NetLast };
-
-/* Column modes */
-enum { Coldefault, Colstack, Colmax };
-
-/* Cursor */
-enum { CurNormal, CurResize, CurMove, CurInput, CurLast };
-
-enum { NCOL = 16 };
-enum { WM_PROTOCOL_DELWIN = 1 };
-
-/* Data Structures */
-typedef struct View View;
-typedef struct Area Area;
-typedef struct Frame Frame;
-typedef struct Client Client;
-typedef struct Key Key;
-typedef struct Bar Bar;
-typedef struct Rule Rule;
-typedef struct Ruleset Ruleset;
-typedef struct WMScreen WMScreen;
-
-struct View {
-	View *next;
-	char name[256];
-	unsigned short id;
-	Area *area;
-	Area *sel;
-	Area *revert;
-};
-
-struct Area {
-	Area *next;
-	Frame *frame;
-	Frame *sel;
-	View *view;
-	Bool floating;
-	unsigned short id;
-	int mode;
-	XRectangle rect;
-};
-
-struct Frame {
-	Frame *cnext;
-	Frame *anext;
-	View *view;
-	Area *area;
-	unsigned short id;
-	XRectangle rect;
-	XRectangle revert;
-	Client *client;
-	Bool collapsed;
-	BlitzBrush tile;
-	BlitzBrush grabbox;
-	BlitzBrush titlebar;
-};
-
-struct Client {
-	Client *next;
-	Area *revert;
-	Frame *frame;
-	Frame *sel;
-	char name[256];
-	char tags[256];
-	char props[512];
-	unsigned short id;
-	unsigned int border;
-	int proto;
-	Bool floating;
-	Bool fixedsize;
-	Window win;
-	Window trans;
-	Window framewin;
-	XRectangle rect;
-	XSizeHints size;
-	GC gc;
-};
-
-struct Key {
-	Key *next;
-	Key *lnext;
-	Key *tnext;
-	unsigned short id;
-	char name[128];
-	unsigned long mod;
-	KeyCode key;
-};
-
-struct Bar {
-	Bar *next;
-	Bar *smaller;
-	char buf[280];
-	char text[256];
-	char name[256];
-	unsigned short id;
-	BlitzBrush brush;
-};
-
-struct Rule {
-	Rule *next;
-	regex_t regex;
-	char value[256];
-};
-
-struct Ruleset {
-	Rule		*rule;
-	char		*string;
-	unsigned int	size;
-};
-
-/* global variables */
-struct {
-	BlitzColor selcolor;
-	BlitzColor normcolor;
-	BlitzColor bcolor[3];
-	BlitzFont font;
-	unsigned int border;
-	unsigned int snap;
-	char *keys;
-	unsigned int keyssz;
-	Ruleset	tagrules;
-	Ruleset	colrules;
-	char grabmod[5];
-	unsigned long mod;
-	int colmode;
-} def;
-
-struct WMScreen {
-	Bar *lbar;
-	Bar *rbar;
-	View *sel;
-	Window barwin;
-
-	XRectangle rect;
-	XRectangle brect;
-	BlitzBrush bbrush;
-} *screens, *screen;
-
-Client *client;
-View *view;
-Key *key;
-
-enum { BUFFER_SIZE = 8092 };
-char buffer[BUFFER_SIZE];
-
-/* IXP */
-IXPServer srv;
-P9Srv p9srv;
-
-/* X11 */
-unsigned int num_screens;
-Blitz blz;
-GC xorgc;
-char *user;
-Atom wm_atom[WMLast];
-Atom net_atom[NetLast];
-Atom tags_atom;
-Cursor cursor[CurLast];
-unsigned int valid_mask;
-unsigned int num_lock_mask;
-Bool sel_screen;
-Pixmap pmap;
-void (*handler[LASTEvent]) (XEvent *);
-
-/* Misc */
-Bool starting;
-
-/* wm.c */
-extern char *message_root(char *message);
-
-/* area.c */
-extern Area *create_area(View *v, Area *pos, unsigned int w);
-extern void destroy_area(Area *a);
-extern Area *area_of_id(View *t, unsigned short id);
-extern char *select_area(Area *a, char *arg);
-extern void send_to_area(Area *to, Area *from, Frame *f);
-extern void attach_to_area(Area *a, Frame *f, Bool send);
-extern void detach_from_area(Area *a, Frame *f);
-extern Client *sel_client_of_area(Area *a);
-
-/* bar.c */
-extern Bar *create_bar(Bar **b_link, char *name);
-extern void destroy_bar(Bar **b_link, Bar *b);
-extern void draw_bar(WMScreen *s);
-extern void resize_bar();
-extern Bar *bar_of_name(Bar *b_link, const char *name);
-
-/* client.c */
-extern Client *create_client(Window w, XWindowAttributes *wa);
-extern void destroy_client(Client *c);
-extern void configure_client(Client *c);
-extern void prop_client(Client *c, XPropertyEvent *e);
-extern void kill_client(Client *c);
-extern void gravitate_client(Client *c, Bool invert);
-extern void unmap_client(Client *c);
-extern void map_client(Client *c);
-extern void reparent_client(Client *c, Window w, int x, int y);
-extern void manage_client(Client *c);
-extern void focus_client(Client *c, Bool restack);
-extern void focus(Client *c, Bool restack);
-extern void resize_client(Client *c, XRectangle *r, Bool ignore_xcall);
-extern void match_sizehints(Client *c, XRectangle *r, Bool floating, BlitzAlign sticky);
-extern char *send_client(Frame *f, char *arg);
-extern char * message_client(Client *c, char *message);
-extern void move_client(Client *c, char *arg);
-extern void size_client(Client *c, char *arg);
-extern void newcol_client(Client *c, char *arg);
-extern Client *sel_client();
-extern Frame *frame_of_win(Window w);
-extern Client *client_of_win(Window w);
-extern int idx_of_client(Client *c);
-extern void update_client_grab(Client *c, Bool is_sel);
-extern void apply_rules(Client *c);
-extern void apply_tags(Client *c, const char *tags);
-
-/* column.c */
-extern void arrange_column(Area *a, Bool dirty);
-extern void scale_column(Area *a, float h);
-extern void resize_column(Client *c, XRectangle *r, XPoint *pt);
-extern int column_mode_of_str(char *arg);
-extern char *str_of_column_mode(int mode);
-extern Area *new_column(View *v, Area *pos, unsigned int w);
-
-/* draw.c */
-extern int loadcolor(Blitz *blitz, BlitzColor *c);
-extern void draw_label(BlitzBrush *b, char *text);
-extern void draw_tile(BlitzBrush *b);
-
-extern void drawbg(Display *dpy, Drawable drawable, GC gc,
-		XRectangle rect, BlitzColor c, Bool border);
-extern void drawcursor(Display *dpy, Drawable drawable, GC gc,
-				int x, int y, unsigned int h, BlitzColor c);
-extern unsigned int textwidth(BlitzFont *font, char *text);
-extern unsigned int textwidth_l(BlitzFont *font, char *text, unsigned int len);
-extern void loadfont(Blitz *blitz, BlitzFont *font);
-extern unsigned int labelh(BlitzFont *font);
-
-/* event.c */
-extern void check_x_event(IXPConn *c);
-extern unsigned int flush_masked_events(long even_mask);
-
-/* frame.c */
-extern Frame *create_frame(Client *c, View *v);
-extern void remove_frame(Frame *f);
-extern void insert_frame(Frame *pos, Frame *f, Bool before);
-extern void draw_frame(Frame *f);
-extern void draw_frames();
-extern void update_frame_widget_colors(Frame *f);
-
-/* fs.c */
-extern void fs_attach(P9Req *r);
-extern void fs_clunk(P9Req *r);
-extern void fs_create(P9Req *r);
-extern void fs_flush(P9Req *r);
-extern void fs_freefid(Fid *f);
-extern void fs_open(P9Req *r);
-extern void fs_read(P9Req *r);
-extern void fs_remove(P9Req *r);
-extern void fs_stat(P9Req *r);
-extern void fs_walk(P9Req *r);
-extern void fs_write(P9Req *r);
-extern void write_event(char *format, ...);
-
-/* geom.c */
-extern Bool ispointinrect(int x, int y, XRectangle * r);
-extern BlitzAlign quadofcoord(XRectangle *rect, int x, int y);
-extern int strtorect(XRectangle *r, const char *val);
-
-/* key.c */
-extern void kpress(Window w, unsigned long mod, KeyCode keycode);
-extern void update_keys();
-extern void init_lock_keys();
-extern unsigned long mod_key_of_str(char *val);
-
-/* mouse.c */
-extern void do_mouse_resize(Client *c,BlitzAlign align);
-extern void grab_mouse(Window w, unsigned long mod, unsigned int button);
-extern void ungrab_mouse(Window w, unsigned long mod, unsigned int button);
-extern BlitzAlign snap_rect(XRectangle *rects, int num, XRectangle *current,
-					 BlitzAlign *mask, int snap);
-
-/* rule.c */
-extern void update_rules(Rule **rule, const char *data);
-extern void trim(char *str, const char *chars);
-
-/* view.c */
-extern void arrange_view(View *v);
-extern void scale_view(View *v, float w);
-extern View *get_view(const char *name);
-extern View *create_view(const char *name);
-extern void focus_view(WMScreen *s, View *v);
-extern void update_client_views(Client *c, char **tags);
-extern XRectangle *rects_of_view(View *v, unsigned int *num);
-extern View *view_of_id(unsigned short id);
-extern void select_view(const char *arg);
-extern void attach_to_view(View *v, Frame *f);
-extern Client *sel_client_of_view(View *v);
-extern char *message_view(View *v, char *message);
-extern void restack_view(View *v);
-extern unsigned char *view_index(View *v);
-extern void destroy_view(View *v);
-extern void update_views();
-extern unsigned int newcolw_of_view(View *v);
-
-/* wm.c */
-extern int wmii_error_handler(Display *dpy, XErrorEvent *error);
-extern int win_proto(Window w);
diff --git a/wmii.c b/wmii.c
@@ -0,0 +1,359 @@
+/* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+#include "wmii.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <X11/cursorfont.h>
+#include <X11/Xproto.h>
+#include <X11/keysym.h>
+#include <X11/Xatom.h>
+#include <X11/Xproto.h>
+
+static int other_wm_running;
+static int (*x_error_handler) (Display *, XErrorEvent *);
+static char version[] = "wmiiwm - " VERSION ", (C)opyright MMIV-MMVI Anselm R. Garbe\n";
+
+static void
+usage() {
+	fputs("usage: wmiiwm -a <address> [-r <wmiirc>] [-v]\n", stderr);
+	exit(1);
+}
+
+static void
+scan_wins() {
+	int i;
+	unsigned int num;
+	Window *wins;
+	XWindowAttributes wa;
+	Window d1, d2;
+
+	if(XQueryTree(blz.dpy, blz.root, &d1, &d2, &wins, &num)) {
+		for(i = 0; i < num; i++) {
+			if(!XGetWindowAttributes(blz.dpy, wins[i], &wa))
+				continue;
+			if(wa.override_redirect || XGetTransientForHint(blz.dpy, wins[i], &d1))
+				continue;
+			if(wa.map_state == IsViewable)
+				manage_client(create_client(wins[i], &wa));
+		}
+	}
+	if(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;
+
+	status = XGetWindowProperty(blz.dpy, w, a, 0L, l, False, t, &real, &format,
+			&res, &extra, prop);
+	if(status != Success || *prop == 0) {
+		return 0;
+	}
+	if(res == 0) {
+		free((void *) *prop);
+	}
+	return res;
+}
+
+int
+win_proto(Window w) {
+	Atom *protocols;
+	long res;
+	int protos = 0;
+	int i;
+
+	res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L,
+			((unsigned char **) &protocols));
+	if(res <= 0) {
+		return protos;
+	}
+	for(i = 0; i < res; i++) {
+		if(protocols[i] == wm_atom[WMDelete])
+			protos |= WM_PROTOCOL_DELWIN;
+	}
+	free((char *) protocols);
+	return protos;
+}
+
+
+static void
+init_atoms() {
+	wm_atom[WMProtocols] = XInternAtom(blz.dpy, "WM_PROTOCOLS", False);
+	wm_atom[WMDelete] = XInternAtom(blz.dpy, "WM_DELETE_WINDOW", False);
+	net_atom[NetSupported] = XInternAtom(blz.dpy, "_NET_SUPPORTED", False);
+	net_atom[NetWMName] = XInternAtom(blz.dpy, "_NET_WM_NAME", False);
+	tags_atom = XInternAtom(blz.dpy, "_WIN_TAGS", False);
+	XChangeProperty(blz.dpy, blz.root, net_atom[NetSupported], XA_ATOM, 32,
+			PropModeReplace, (unsigned char *) net_atom, NetLast);
+}
+
+static void
+init_cursors() {
+	cursor[CurNormal] = XCreateFontCursor(blz.dpy, XC_left_ptr);
+	cursor[CurResize] = XCreateFontCursor(blz.dpy, XC_sizing);
+	cursor[CurMove] = XCreateFontCursor(blz.dpy, XC_fleur);
+	cursor[CurInput] = XCreateFontCursor(blz.dpy, XC_xterm);
+}
+
+static void
+init_screen(WMScreen *screen) {
+	Window w;
+	int ret;
+	unsigned mask;
+	XGCValues gcv;
+
+	gcv.subwindow_mode = IncludeInferiors;
+	gcv.function = GXxor;
+	gcv.foreground = def.selcolor.bg;
+	gcv.plane_mask = AllPlanes;
+	gcv.graphics_exposures = False;
+	xorgc = XCreateGC(blz.dpy, blz.root, GCForeground | GCGraphicsExposures |
+						GCFunction | GCSubwindowMode | GCPlaneMask, &gcv);
+	screen->rect.x = screen->rect.y = 0;
+	screen->rect.width = DisplayWidth(blz.dpy, blz.screen);
+	screen->rect.height = DisplayHeight(blz.dpy, blz.screen);
+	def.snap = screen->rect.height / 63;
+	sel_screen = XQueryPointer(blz.dpy, blz.root, &w, &w, &ret, &ret, &ret, &ret, &mask);
+}
+
+/*
+ * 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
+wmii_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, "wmiiwm: fatal error: Xrequest code=%d, Xerror code=%d\n",
+			error->request_code, error->error_code);
+	return x_error_handler(blz.dpy, error); /* calls 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 = 1;
+	return -1;
+}
+
+static void
+cleanup() {
+	Client *c;
+
+	for(c=client; c; c=c->next)
+		reparent_client(c, blz.root, c->sel->rect.x, c->sel->rect.y);
+	XSetInputFocus(blz.dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+	XSync(blz.dpy, False);
+}
+
+int
+main(int argc, char *argv[]) {
+	int i;
+	char *address = NULL, *wmiirc = NULL, *namespace, *errstr;
+	WMScreen *s;
+	struct passwd *passwd;
+	XSetWindowAttributes wa;
+
+	/* command line args */
+	for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
+		switch (argv[i][1]) {
+		case 'v':
+			fprintf(stdout, "%s", version);
+			exit(0);
+			break;
+		case 'a':
+			if(i + 1 < argc)
+				address = argv[++i];
+			else
+				usage();
+			break;
+		case 'r':
+			if(i + 1 < argc)
+				wmiirc = argv[++i];
+			else
+				usage();
+			break;
+		default:
+			usage();
+			break;
+		}
+	}
+	starting = True;
+	blz.dpy = XOpenDisplay(0);
+	if(!blz.dpy)
+		ixp_eprint("wmiiwm: cannot open dpy\n");
+	blz.screen = DefaultScreen(blz.dpy);
+	blz.root = RootWindow(blz.dpy, blz.screen);
+	/* check if another WM is already running */
+	other_wm_running = 0;
+	XSetErrorHandler(startup_error_handler);
+	/* this causes an error if some other WM is running */
+	XSelectInput(blz.dpy, blz.root, SubstructureRedirectMask | EnterWindowMask);
+	XSync(blz.dpy, False);
+	if(other_wm_running)
+		ixp_eprint("wmiiwm: another window manager is already running\n");
+	if(!address)
+		usage();
+	/* Check namespace permissions */
+	if(!strncmp(address, "unix!", 5)) {
+		struct stat st;
+		namespace = ixp_estrdup(&address[5]);
+		for(i = strlen(namespace) - 1; i >= 0; i--)
+			if(namespace[i] == '/') break;
+		namespace[i+1] = '\0';
+		if(stat(namespace, &st))
+			ixp_eprint("wmiiwm: can't stat namespace directory \"%s\": %s\n",
+					namespace, strerror(errno));
+		if(getuid() != st.st_uid)
+			ixp_eprint("wmiiwm: namespace directory \"%s\" exists, but is not owned by you",
+				namespace);
+		if(st.st_mode & 077)
+			ixp_eprint("wmiiwm: namespace directory \"%s\" exists, "
+				"but has group or world permissions",
+				namespace);
+		free(namespace);
+	}
+	XSetErrorHandler(0);
+	x_error_handler = XSetErrorHandler(wmii_error_handler);
+	errstr = NULL;
+	i = ixp_create_sock(address, &errstr);
+	if(i < 0)
+		ixp_eprint("wmiiwm: fatal: %s\n", errstr);
+
+	/* start wmiirc */
+	if(wmiirc) {
+		int name_len = strlen(wmiirc) + 6;
+		char execstr[name_len];
+		switch(fork()) {
+		case 0:
+			if(setsid() == -1)
+				ixp_eprint("wmiim: can't setsid: %s\n", strerror(errno));
+			close(i);
+			close(ConnectionNumber(blz.dpy));
+			snprintf(execstr, name_len, "exec %s", wmiirc);
+			execl("/bin/sh", "sh", "-c", execstr, NULL);
+			ixp_eprint("wmiiwm: can't exec \"%s\": %s\n", wmiirc, strerror(errno));
+		case -1:
+			perror("wmiiwm: cannot fork wmiirc");
+		default:
+			break;
+		}
+	}
+
+	/* IXP server */
+	ixp_server_open_conn(&srv, i, &p9srv, serve_9pcon, NULL);
+	/* X server */
+	ixp_server_open_conn(&srv, ConnectionNumber(blz.dpy), NULL, check_x_event, NULL);
+	view = NULL;
+	client = NULL;
+	key = NULL;
+	passwd = getpwuid(getuid());
+	user = ixp_estrdup(passwd->pw_name);
+	def.colrules.string = NULL;
+	def.colrules.size = 0;
+	def.tagrules.string = NULL;
+	def.tagrules.size = 0;
+	def.keys = NULL;
+	def.keyssz = 0;
+	def.font.fontstr = ixp_estrdup(BLITZ_FONT);
+	def.border = 2;
+	def.colmode = Coldefault;
+	strncpy(def.selcolor.colstr, BLITZ_SELCOLORS, sizeof(def.selcolor.colstr));
+	loadcolor(&blz, &def.selcolor);
+	strncpy(def.normcolor.colstr, BLITZ_NORMCOLORS, sizeof(def.normcolor.colstr));
+	loadcolor(&blz, &def.normcolor);
+	strncpy(def.bcolor[0].colstr, BLITZ_B1COLORS, sizeof(def.bcolor[0].colstr));
+	strncpy(def.bcolor[1].colstr, BLITZ_B2COLORS, sizeof(def.bcolor[1].colstr));
+	strncpy(def.bcolor[2].colstr, BLITZ_B3COLORS, sizeof(def.bcolor[2].colstr));
+	loadcolor(&blz, &def.bcolor[0]);
+	loadcolor(&blz, &def.bcolor[1]);
+	loadcolor(&blz, &def.bcolor[2]);
+	strncpy(def.grabmod, "Mod1", sizeof(def.grabmod));
+	def.mod = Mod1Mask;
+	init_atoms();
+	init_cursors();
+	loadfont(&blz, &def.font);
+	init_lock_keys();
+	num_screens = 1;
+	screens = ixp_emallocz(num_screens * sizeof(*screens));
+	for(i = 0; i < num_screens; i++) {
+		s = &screens[i];
+		s->lbar = NULL;
+		s->rbar = NULL;
+		s->sel = NULL;
+		init_screen(s);
+		pmap = XCreatePixmap(blz.dpy, blz.root, s->rect.width, s->rect.height,
+				DefaultDepth(blz.dpy, blz.screen));
+		wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
+		wa.cursor = cursor[CurNormal];
+		XChangeWindowAttributes(blz.dpy, blz.root, CWEventMask | CWCursor, &wa);
+		wa.override_redirect = 1;
+		wa.background_pixmap = ParentRelative;
+		wa.event_mask = ExposureMask | ButtonReleaseMask
+			| SubstructureRedirectMask | SubstructureNotifyMask;
+		s->brect = s->rect;
+		s->brect.height = labelh(&def.font);
+		s->brect.y = s->rect.height - s->brect.height;
+		s->barwin = XCreateWindow(blz.dpy, RootWindow(blz.dpy, blz.screen),
+				s->brect.x, s->brect.y,
+				s->brect.width, s->brect.height, 0,
+				DefaultDepth(blz.dpy, blz.screen),
+				CopyFromParent, DefaultVisual(blz.dpy, blz.screen),
+				CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
+		XSync(blz.dpy, False);
+		s->bbrush.blitz = &blz;
+		s->bbrush.gc = XCreateGC(blz.dpy, s->barwin, 0, 0);
+		s->bbrush.drawable = pmap;
+		s->bbrush.rect = s->brect;
+		s->bbrush.rect.x = 0;
+		s->bbrush.rect.y = 0;
+		s->bbrush.color = def.normcolor;
+		s->bbrush.font = &def.font;
+		s->bbrush.border = True;
+		draw_bar(s);
+		XMapRaised(blz.dpy, s->barwin);
+	}
+
+	screen = &screens[0];
+	scan_wins();
+	update_views();
+	starting = False;
+
+	/* main event loop */
+	errstr = ixp_server_loop(&srv);
+	if(errstr)
+		fprintf(stderr, "wmii: fatal: %s\n", errstr);
+	cleanup();
+	XCloseDisplay(blz.dpy);
+	ixp_server_close(&srv);
+	return errstr ? 1 : 0;
+}
diff --git a/wmii.h b/wmii.h
@@ -0,0 +1,383 @@
+/*
+ * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#include <stdio.h>
+#include <regex.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xlocale.h>
+
+#include <ixp.h>
+
+#define BLITZ_FONT		"fixed"
+#define BLITZ_SELCOLORS		"#ffffff #335577 #447799"
+#define BLITZ_NORMCOLORS	"#222222 #eeeeee #666666"
+#define BLITZ_B1COLORS		"#000000 #00ffff #000000"
+#define BLITZ_B2COLORS		"#000000 #ff0000 #000000"
+#define BLITZ_B3COLORS		"#000000 #00ff00 #000000"
+
+typedef struct Blitz Blitz;
+typedef enum BlitzAlign BlitzAlign;
+typedef struct BlitzColor BlitzColor;
+typedef struct BlitzFont BlitzFont;
+typedef struct BlitzBrush BlitzBrush;
+typedef struct BlitzInput BlitzInput;
+
+struct Blitz {
+	Display *dpy;
+	int screen;
+	Window root;
+};
+
+enum BlitzAlign {
+	NORTH = 0x01,
+	EAST  = 0x02,
+	SOUTH = 0x04,
+	WEST  = 0x08,
+	NEAST = NORTH | EAST,
+	NWEST = NORTH | WEST,
+	SEAST = SOUTH | EAST,
+	SWEST = SOUTH | WEST,
+	CENTER = NEAST | SWEST
+};
+
+struct BlitzColor {
+	unsigned long bg;
+	unsigned long fg;
+	unsigned long border;
+	char colstr[24]; /* #RRGGBB #RRGGBB #RRGGBB */
+};
+
+struct BlitzFont {
+	XFontStruct *xfont;
+	XFontSet set;
+	int ascent;
+	int descent;
+	unsigned int height;
+	char *fontstr;
+};
+
+struct BlitzBrush {
+	Blitz *blitz;
+	Drawable drawable;
+	GC gc;
+	Bool border;
+	BlitzColor color;
+	BlitzAlign align;
+	BlitzFont *font;
+	XRectangle rect;	/* relative rect */
+};
+
+/* WM atoms */
+enum { WMProtocols, WMDelete, WMLast };
+
+/* NET atoms */
+enum { NetSupported, NetWMName, NetLast };
+
+/* Column modes */
+enum { Coldefault, Colstack, Colmax };
+
+/* Cursor */
+enum { CurNormal, CurResize, CurMove, CurInput, CurLast };
+
+enum { NCOL = 16 };
+enum { WM_PROTOCOL_DELWIN = 1 };
+
+/* Data Structures */
+typedef struct View View;
+typedef struct Area Area;
+typedef struct Frame Frame;
+typedef struct Client Client;
+typedef struct Key Key;
+typedef struct Bar Bar;
+typedef struct Rule Rule;
+typedef struct Ruleset Ruleset;
+typedef struct WMScreen WMScreen;
+
+struct View {
+	View *next;
+	char name[256];
+	unsigned short id;
+	Area *area;
+	Area *sel;
+	Area *revert;
+};
+
+struct Area {
+	Area *next;
+	Frame *frame;
+	Frame *sel;
+	View *view;
+	Bool floating;
+	unsigned short id;
+	int mode;
+	XRectangle rect;
+};
+
+struct Frame {
+	Frame *cnext;
+	Frame *anext;
+	View *view;
+	Area *area;
+	unsigned short id;
+	XRectangle rect;
+	XRectangle revert;
+	Client *client;
+	Bool collapsed;
+	BlitzBrush tile;
+	BlitzBrush grabbox;
+	BlitzBrush titlebar;
+};
+
+struct Client {
+	Client *next;
+	Area *revert;
+	Frame *frame;
+	Frame *sel;
+	char name[256];
+	char tags[256];
+	char props[512];
+	unsigned short id;
+	unsigned int border;
+	int proto;
+	Bool floating;
+	Bool fixedsize;
+	Window win;
+	Window trans;
+	Window framewin;
+	XRectangle rect;
+	XSizeHints size;
+	GC gc;
+};
+
+struct Key {
+	Key *next;
+	Key *lnext;
+	Key *tnext;
+	unsigned short id;
+	char name[128];
+	unsigned long mod;
+	KeyCode key;
+};
+
+struct Bar {
+	Bar *next;
+	Bar *smaller;
+	char buf[280];
+	char text[256];
+	char name[256];
+	unsigned short id;
+	BlitzBrush brush;
+};
+
+struct Rule {
+	Rule *next;
+	regex_t regex;
+	char value[256];
+};
+
+struct Ruleset {
+	Rule		*rule;
+	char		*string;
+	unsigned int	size;
+};
+
+/* global variables */
+struct {
+	BlitzColor selcolor;
+	BlitzColor normcolor;
+	BlitzColor bcolor[3];
+	BlitzFont font;
+	unsigned int border;
+	unsigned int snap;
+	char *keys;
+	unsigned int keyssz;
+	Ruleset	tagrules;
+	Ruleset	colrules;
+	char grabmod[5];
+	unsigned long mod;
+	int colmode;
+} def;
+
+struct WMScreen {
+	Bar *lbar;
+	Bar *rbar;
+	View *sel;
+	Window barwin;
+
+	XRectangle rect;
+	XRectangle brect;
+	BlitzBrush bbrush;
+} *screens, *screen;
+
+Client *client;
+View *view;
+Key *key;
+
+enum { BUFFER_SIZE = 8092 };
+char buffer[BUFFER_SIZE];
+
+/* IXP */
+IXPServer srv;
+P9Srv p9srv;
+
+/* X11 */
+unsigned int num_screens;
+Blitz blz;
+GC xorgc;
+char *user;
+Atom wm_atom[WMLast];
+Atom net_atom[NetLast];
+Atom tags_atom;
+Cursor cursor[CurLast];
+unsigned int valid_mask;
+unsigned int num_lock_mask;
+Bool sel_screen;
+Pixmap pmap;
+void (*handler[LASTEvent]) (XEvent *);
+
+/* Misc */
+Bool starting;
+
+/* wm.c */
+extern char *message_root(char *message);
+
+/* area.c */
+extern Area *create_area(View *v, Area *pos, unsigned int w);
+extern void destroy_area(Area *a);
+extern Area *area_of_id(View *t, unsigned short id);
+extern char *select_area(Area *a, char *arg);
+extern void send_to_area(Area *to, Area *from, Frame *f);
+extern void attach_to_area(Area *a, Frame *f, Bool send);
+extern void detach_from_area(Area *a, Frame *f);
+extern Client *sel_client_of_area(Area *a);
+
+/* bar.c */
+extern Bar *create_bar(Bar **b_link, char *name);
+extern void destroy_bar(Bar **b_link, Bar *b);
+extern void draw_bar(WMScreen *s);
+extern void resize_bar();
+extern Bar *bar_of_name(Bar *b_link, const char *name);
+
+/* client.c */
+extern Client *create_client(Window w, XWindowAttributes *wa);
+extern void destroy_client(Client *c);
+extern void configure_client(Client *c);
+extern void prop_client(Client *c, XPropertyEvent *e);
+extern void kill_client(Client *c);
+extern void gravitate_client(Client *c, Bool invert);
+extern void unmap_client(Client *c);
+extern void map_client(Client *c);
+extern void reparent_client(Client *c, Window w, int x, int y);
+extern void manage_client(Client *c);
+extern void focus_client(Client *c, Bool restack);
+extern void focus(Client *c, Bool restack);
+extern void resize_client(Client *c, XRectangle *r, Bool ignore_xcall);
+extern void match_sizehints(Client *c, XRectangle *r, Bool floating, BlitzAlign sticky);
+extern char *send_client(Frame *f, char *arg);
+extern char * message_client(Client *c, char *message);
+extern void move_client(Client *c, char *arg);
+extern void size_client(Client *c, char *arg);
+extern void newcol_client(Client *c, char *arg);
+extern Client *sel_client();
+extern Frame *frame_of_win(Window w);
+extern Client *client_of_win(Window w);
+extern int idx_of_client(Client *c);
+extern void update_client_grab(Client *c, Bool is_sel);
+extern void apply_rules(Client *c);
+extern void apply_tags(Client *c, const char *tags);
+
+/* column.c */
+extern void arrange_column(Area *a, Bool dirty);
+extern void scale_column(Area *a, float h);
+extern void resize_column(Client *c, XRectangle *r, XPoint *pt);
+extern int column_mode_of_str(char *arg);
+extern char *str_of_column_mode(int mode);
+extern Area *new_column(View *v, Area *pos, unsigned int w);
+
+/* draw.c */
+extern int loadcolor(Blitz *blitz, BlitzColor *c);
+extern void draw_label(BlitzBrush *b, char *text);
+extern void draw_tile(BlitzBrush *b);
+
+extern void drawbg(Display *dpy, Drawable drawable, GC gc,
+		XRectangle rect, BlitzColor c, Bool border);
+extern void drawcursor(Display *dpy, Drawable drawable, GC gc,
+				int x, int y, unsigned int h, BlitzColor c);
+extern unsigned int textwidth(BlitzFont *font, char *text);
+extern unsigned int textwidth_l(BlitzFont *font, char *text, unsigned int len);
+extern void loadfont(Blitz *blitz, BlitzFont *font);
+extern unsigned int labelh(BlitzFont *font);
+
+/* event.c */
+extern void check_x_event(IXPConn *c);
+extern unsigned int flush_masked_events(long even_mask);
+
+/* frame.c */
+extern Frame *create_frame(Client *c, View *v);
+extern void remove_frame(Frame *f);
+extern void insert_frame(Frame *pos, Frame *f, Bool before);
+extern void draw_frame(Frame *f);
+extern void draw_frames();
+extern void update_frame_widget_colors(Frame *f);
+
+/* fs.c */
+extern void fs_attach(P9Req *r);
+extern void fs_clunk(P9Req *r);
+extern void fs_create(P9Req *r);
+extern void fs_flush(P9Req *r);
+extern void fs_freefid(Fid *f);
+extern void fs_open(P9Req *r);
+extern void fs_read(P9Req *r);
+extern void fs_remove(P9Req *r);
+extern void fs_stat(P9Req *r);
+extern void fs_walk(P9Req *r);
+extern void fs_write(P9Req *r);
+extern void write_event(char *format, ...);
+
+/* geom.c */
+extern Bool ispointinrect(int x, int y, XRectangle * r);
+extern BlitzAlign quadofcoord(XRectangle *rect, int x, int y);
+extern int strtorect(XRectangle *r, const char *val);
+
+/* key.c */
+extern void kpress(Window w, unsigned long mod, KeyCode keycode);
+extern void update_keys();
+extern void init_lock_keys();
+extern unsigned long mod_key_of_str(char *val);
+
+/* mouse.c */
+extern void do_mouse_resize(Client *c,BlitzAlign align);
+extern void grab_mouse(Window w, unsigned long mod, unsigned int button);
+extern void ungrab_mouse(Window w, unsigned long mod, unsigned int button);
+extern BlitzAlign snap_rect(XRectangle *rects, int num, XRectangle *current,
+					 BlitzAlign *mask, int snap);
+
+/* rule.c */
+extern void update_rules(Rule **rule, const char *data);
+extern void trim(char *str, const char *chars);
+
+/* view.c */
+extern void arrange_view(View *v);
+extern void scale_view(View *v, float w);
+extern View *get_view(const char *name);
+extern View *create_view(const char *name);
+extern void focus_view(WMScreen *s, View *v);
+extern void update_client_views(Client *c, char **tags);
+extern XRectangle *rects_of_view(View *v, unsigned int *num);
+extern View *view_of_id(unsigned short id);
+extern void select_view(const char *arg);
+extern void attach_to_view(View *v, Frame *f);
+extern Client *sel_client_of_view(View *v);
+extern char *message_view(View *v, char *message);
+extern void restack_view(View *v);
+extern unsigned char *view_index(View *v);
+extern void destroy_view(View *v);
+extern void update_views();
+extern unsigned int newcolw_of_view(View *v);
+
+/* wm.c */
+extern int wmii_error_handler(Display *dpy, XErrorEvent *error);
+extern int win_proto(Window w);