Initial commit

1 files changed, 2691 insertions, 0 deletions

diff --git a/dwm.c b/dwm.c
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--- /dev/null
+++ b/dwm.c
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+/* See LICENSE file for copyright and license details.
+ *
+ * dynamic window manager is designed like any other X client as well. It is
+ * driven through handling X events. In contrast to other X clients, a window
+ * manager selects for SubstructureRedirectMask on the root window, to receive
+ * events about window (dis-)appearance.  Only one X connection at a time is
+ * allowed to select for this event mask.
+ *
+ * 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 linked client
+ * list on each monitor, the focus history is remembered through a stack list
+ * on each monitor. Each client contains a bit array to indicate the tags of a
+ * client.
+ *
+ * Keys and tagging rules are organized as arrays and defined in config.h.
+ *
+ * To understand everything else, start reading main().
+ */
+#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/types.h>
+#include <sys/wait.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/Xproto.h>
+#include <X11/Xutil.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif /* XINERAMA */
+
+
+#include "drw.h"
+#include "util.h"
+//#include "config.h"
+
+/* macros */
+#define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
+#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
+#define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
+                               * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
+#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]))
+#define LENGTH(X)               (sizeof X / sizeof X[0])
+#define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
+#define WIDTH(X)                ((X)->w + 2 * (X)->bw)
+#define HEIGHT(X)               ((X)->h + 2 * (X)->bw)
+#define TAGMASK                 ((1 << LENGTH(tags)) - 1)
+#define TEXTW(X)                (drw_font_getexts_width(drw->font, X, strlen(X)) + drw->font->h)
+
+#ifdef CONFIG_DWM_SYSTEMTRAY
+#define SYSTEM_TRAY_REQUEST_DOCK    0
+#define _NET_SYSTEM_TRAY_ORIENTATION_HORZ 0
+
+/* XEMBED messages */
+#define XEMBED_EMBEDDED_NOTIFY      0
+#define XEMBED_WINDOW_ACTIVATE      1
+#define XEMBED_FOCUS_IN             4
+#define XEMBED_MODALITY_ON         10
+
+#define XEMBED_MAPPED              (1 << 0)
+#define XEMBED_WINDOW_ACTIVATE      1
+#define XEMBED_WINDOW_DEACTIVATE    2
+
+#define VERSION_MAJOR               0
+#define VERSION_MINOR               0
+#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
+#endif
+
+/* enums */
+enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
+enum { SchemeNorm, SchemeSel, SchemeLast }; /* color schemes */
+enum { NetSupported, NetWMName, NetWMState,
+       NetWMFullscreen, NetActiveWindow, NetWMWindowType,
+#ifdef CONFIG_DWM_OPACITY
+       NetWMWindowsOpacity,
+#endif
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation,
+#endif
+       NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
+enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
+enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
+       ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
+#ifdef CONFIG_DWM_SYSTEMTRAY
+enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
+#endif
+
+
+
+typedef union {
+	int i;
+	unsigned int ui;
+	float f;
+	const void *v;
+} Arg;
+
+typedef struct {
+	unsigned int click;
+	unsigned int mask;
+	unsigned int button;
+	void (*func)(const Arg *arg);
+	const Arg arg;
+} Button;
+
+typedef struct Monitor Monitor;
+typedef struct Client Client;
+struct Client {
+	char name[256];
+	float mina, maxa;
+	int x, y, w, h;
+	int oldx, oldy, oldw, oldh;
+	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
+	int bw, oldbw;
+	unsigned int tags;
+	Bool isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	Client *next;
+	Client *snext;
+	Monitor *mon;
+	Window win;
+};
+
+typedef struct {
+	unsigned int mod;
+	KeySym keysym;
+	void (*func)(const Arg *);
+	const Arg arg;
+} Key;
+
+typedef struct {
+	const char *symbol;
+	void (*arrange)(Monitor *);
+} Layout;
+
+
+#ifdef CONFIG_DWM_PERTAG
+	typedef struct Pertag Pertag;
+#endif
+struct Monitor {
+	char ltsymbol[16];
+	float mfact;
+	int nmaster;
+	int num;
+	int by;               /* bar geometry */
+	int mx, my, mw, mh;   /* screen size */
+	int wx, wy, ww, wh;   /* window area  */
+	unsigned int seltags;
+	unsigned int sellt;
+	unsigned int tagset[2];
+	Bool showbar;
+	Bool topbar;
+	Client *clients;
+	Client *sel;
+	Client *stack;
+	Monitor *next;
+	Window barwin;
+	const Layout *lt[2];
+
+#ifdef CONFIG_DWM_PERTAG
+	Pertag *pertag;
+#endif
+};
+
+typedef struct {
+	const char *class;
+	const char *instance;
+	const char *title;
+	unsigned int tags;
+	Bool isfloating;
+	int monitor;
+} Rule;
+
+#ifdef CONFIG_DWM_SYSTEMTRAY
+typedef struct Systray   Systray;
+struct Systray {
+	Window win;
+	Client *icons;
+};
+#endif
+
+/* function declarations */
+static void applyrules(Client *c);
+static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
+static void arrange(Monitor *m);
+static void arrangemon(Monitor *m);
+static void attach(Client *c);
+static void attachstack(Client *c);
+static void buttonpress(XEvent *e);
+static void checkotherwm(void);
+static void cleanup(void);
+static void cleanupmon(Monitor *mon);
+static void clearurgent(Client *c);
+static void clientmessage(XEvent *e);
+static void configure(Client *c);
+static void configurenotify(XEvent *e);
+static void configurerequest(XEvent *e);
+static Monitor *createmon(void);
+static void destroynotify(XEvent *e);
+static void detach(Client *c);
+static void detachstack(Client *c);
+static Monitor *dirtomon(int dir);
+static void drawbar(Monitor *m);
+static void drawbars(void);
+static void enternotify(XEvent *e);
+static void expose(XEvent *e);
+static void focus(Client *c);
+static void focusin(XEvent *e);
+static void focusmon(const Arg *arg);
+static void focusstack(const Arg *arg);
+static Bool getrootptr(int *x, int *y);
+static long getstate(Window w);
+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 incnmaster(const Arg *arg);
+static void keypress(XEvent *e);
+static void killclient(const Arg *arg);
+static void manage(Window w, XWindowAttributes *wa);
+static void mappingnotify(XEvent *e);
+static void maprequest(XEvent *e);
+static void monocle(Monitor *m);
+static void motionnotify(XEvent *e);
+static void movemouse(const Arg *arg);
+static Client *nexttiled(Client *c);
+static void pop(Client *);
+static void propertynotify(XEvent *e);
+static void quit(const Arg *arg);
+static Monitor *recttomon(int x, int y, int w, int h);
+static void resize(Client *c, int x, int y, int w, int h, Bool interact);
+static void resizeclient(Client *c, int x, int y, int w, int h);
+static void resizemouse(const Arg *arg);
+static void restack(Monitor *m);
+static void run(void);
+static void scan(void);
+#ifdef CONFIG_DWM_SYSTEMTRAY
+static Bool sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
+#else
+static Bool sendevent(Client *c, Atom proto);
+#endif
+static void sendmon(Client *c, Monitor *m);
+static void setclientstate(Client *c, long state);
+static void setfocus(Client *c);
+static void setfullscreen(Client *c, Bool fullscreen);
+static void setlayout(const Arg *arg);
+static void setmfact(const Arg *arg);
+static void setup(void);
+static void showhide(Client *c);
+static void sigchld(int unused);
+static void spawn(const Arg *arg);
+static void tag(const Arg *arg);
+static void tagmon(const Arg *arg);
+static void tile(Monitor *);
+static void togglebar(const Arg *arg);
+static void togglefloating(const Arg *arg);
+static void toggletag(const Arg *arg);
+static void toggleview(const Arg *arg);
+static void unfocus(Client *c, Bool setfocus);
+static void unmanage(Client *c, Bool destroyed);
+static void unmapnotify(XEvent *e);
+static Bool updategeom(void);
+static void updatebarpos(Monitor *m);
+static void updatebars(void);
+static void updateclientlist(void);
+static void updatenumlockmask(void);
+static void updatesizehints(Client *c);
+static void updatestatus(void);
+static void updatewindowtype(Client *c);
+static void updatetitle(Client *c);
+static void updatewmhints(Client *c);
+static void view(const Arg *arg);
+static Client *wintoclient(Window w);
+static Monitor *wintomon(Window w);
+static int xerror(Display *dpy, XErrorEvent *ee);
+static int xerrordummy(Display *dpy, XErrorEvent *ee);
+static int xerrorstart(Display *dpy, XErrorEvent *ee);
+static void zoom(const Arg *arg);
+#ifdef CONFIG_DWM_OPACITY
+static void opacity(Client *c, double opacity);
+#endif
+#ifdef CONFIG_DWM_SYSTEMTRAY
+static Atom getatomprop(Client *c, Atom prop);
+static unsigned int getsystraywidth();
+static void removesystrayicon(Client *i);
+static void resizebarwin(Monitor *m);
+static void resizerequest(XEvent *e);
+static Monitor *systraytomon(Monitor *m);
+static void updatesystray(void);
+static void updatesystrayicongeom(Client *i, int w, int h);
+static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
+static Client *wintosystrayicon(Window w);
+#endif
+
+/* variables */
+static const char broken[] = "broken";
+#ifdef CONFIG_DWM_PANGO
+static char stext[512];
+#else
+static char stext[256];
+#endif
+static int screen;
+static int sw, sh;           /* X display screen geometry width, height */
+static int bh, blw = 0;      /* bar geometry */
+static int (*xerrorxlib)(Display *, XErrorEvent *);
+static unsigned int numlockmask = 0;
+static void (*handler[LASTEvent]) (XEvent *) = {
+	[ButtonPress] = buttonpress,
+	[ClientMessage] = clientmessage,
+	[ConfigureRequest] = configurerequest,
+	[ConfigureNotify] = configurenotify,
+	[DestroyNotify] = destroynotify,
+	[EnterNotify] = enternotify,
+	[Expose] = expose,
+	[FocusIn] = focusin,
+	[KeyPress] = keypress,
+	[MappingNotify] = mappingnotify,
+	[MapRequest] = maprequest,
+	[MotionNotify] = motionnotify,
+	[PropertyNotify] = propertynotify,
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	[ResizeRequest] = resizerequest,
+#endif
+	[UnmapNotify] = unmapnotify
+};
+static Atom wmatom[WMLast], netatom[NetLast];
+static Bool running = True;
+static Cur *cursor[CurLast];
+static ClrScheme scheme[SchemeLast];
+static Display *dpy;
+static Drw *drw;
+static Fnt *fnt;
+static Monitor *mons, *selmon;
+static Window root;
+#ifdef CONFIG_DWM_SYSTEMTRAY
+static Systray *systray = NULL;
+static unsigned long systrayorientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
+static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
+#endif
+
+
+/* configuration, allows nested code to access above variables */
+#include "config.h"
+
+#ifdef CONFIG_DWM_PERTAG
+typedef struct Pertag {
+	unsigned int curtag, prevtag; /* current and previous tag */
+	int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
+	float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
+	unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
+	const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes  */
+	Bool showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
+	Client *prevzooms[LENGTH(tags) + 1]; /* store zoom information */
+} Pertag;
+#endif
+
+/* compile-time check if all tags fit into an unsigned int bit array. */
+struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
+
+/* function implementations */
+void
+applyrules(Client *c) {
+	const char *class, *instance;
+	unsigned int i;
+	const Rule *r;
+	Monitor *m;
+	XClassHint ch = { NULL, NULL };
+
+	/* rule matching */
+	c->isfloating = c->tags = 0;
+	XGetClassHint(dpy, c->win, &ch);
+	class    = ch.res_class ? ch.res_class : broken;
+	instance = ch.res_name  ? ch.res_name  : broken;
+
+	for(i = 0; i < LENGTH(rules); i++) {
+		r = &rules[i];
+		if((!r->title || strstr(c->name, r->title))
+		&& (!r->class || strstr(class, r->class))
+		&& (!r->instance || strstr(instance, r->instance)))
+		{
+			c->isfloating = r->isfloating;
+			c->tags |= r->tags;
+			for(m = mons; m && m->num != r->monitor; m = m->next);
+			if(m)
+				c->mon = m;
+		}
+	}
+	if(ch.res_class)
+		XFree(ch.res_class);
+	if(ch.res_name)
+		XFree(ch.res_name);
+	c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
+}
+
+Bool
+applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
+	Bool baseismin;
+	Monitor *m = c->mon;
+
+	/* set minimum possible */
+	*w = MAX(1, *w);
+	*h = MAX(1, *h);
+	if(interact) {
+		if(*x > sw)
+			*x = sw - WIDTH(c);
+		if(*y > sh)
+			*y = sh - HEIGHT(c);
+		if(*x + *w + 2 * c->bw < 0)
+			*x = 0;
+		if(*y + *h + 2 * c->bw < 0)
+			*y = 0;
+	}
+	else {
+		if(*x >= m->wx + m->ww)
+			*x = m->wx + m->ww - WIDTH(c);
+		if(*y >= m->wy + m->wh)
+			*y = m->wy + m->wh - HEIGHT(c);
+		if(*x + *w + 2 * c->bw <= m->wx)
+			*x = m->wx;
+		if(*y + *h + 2 * c->bw <= m->wy)
+			*y = m->wy;
+	}
+	if(*h < bh)
+		*h = bh;
+	if(*w < bh)
+		*w = bh;
+	if(resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
+		/* see last two sentences in ICCCM 4.1.2.3 */
+		baseismin = c->basew == c->minw && c->baseh == c->minh;
+		if(!baseismin) { /* temporarily remove base dimensions */
+			*w -= c->basew;
+			*h -= c->baseh;
+		}
+		/* adjust for aspect limits */
+		if(c->mina > 0 && c->maxa > 0) {
+			if(c->maxa < (float)*w / *h)
+				*w = *h * c->maxa + 0.5;
+			else if(c->mina < (float)*h / *w)
+				*h = *w * c->mina + 0.5;
+		}
+		if(baseismin) { /* increment calculation requires this */
+			*w -= c->basew;
+			*h -= c->baseh;
+		}
+		/* adjust for increment value */
+		if(c->incw)
+			*w -= *w % c->incw;
+		if(c->inch)
+			*h -= *h % c->inch;
+		/* restore base dimensions */
+		*w = MAX(*w + c->basew, c->minw);
+		*h = MAX(*h + c->baseh, c->minh);
+		if(c->maxw)
+			*w = MIN(*w, c->maxw);
+		if(c->maxh)
+			*h = MIN(*h, c->maxh);
+	}
+	return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
+}
+
+void
+arrange(Monitor *m) {
+	if(m)
+		showhide(m->stack);
+	else for(m = mons; m; m = m->next)
+		showhide(m->stack);
+	if(m) {
+		arrangemon(m);
+		restack(m);
+	} else for(m = mons; m; m = m->next)
+		arrangemon(m);
+}
+
+void
+arrangemon(Monitor *m) {
+	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
+	if(m->lt[m->sellt]->arrange)
+		m->lt[m->sellt]->arrange(m);
+}
+
+void
+attach(Client *c) {
+	c->next = c->mon->clients;
+	c->mon->clients = c;
+}
+
+void
+attachstack(Client *c) {
+	c->snext = c->mon->stack;
+	c->mon->stack = c;
+}
+
+void
+buttonpress(XEvent *e) {
+	unsigned int i, x, click;
+	Arg arg = {0};
+	Client *c;
+	Monitor *m;
+	XButtonPressedEvent *ev = &e->xbutton;
+
+	click = ClkRootWin;
+	/* focus monitor if necessary */
+	if((m = wintomon(ev->window)) && m != selmon) {
+		unfocus(selmon->sel, True);
+		selmon = m;
+		focus(NULL);
+	}
+	if(ev->window == selmon->barwin) {
+		i = x = 0;
+		do
+			x += TEXTW(tags[i]);
+		while(ev->x >= x && ++i < LENGTH(tags));
+		if(i < LENGTH(tags)) {
+			click = ClkTagBar;
+			arg.ui = 1 << i;
+		}
+		else if(ev->x < x + blw)
+			click = ClkLtSymbol;
+		else if(ev->x > selmon->ww - TEXTW(stext))
+			click = ClkStatusText;
+		else
+			click = ClkWinTitle;
+	}
+	else if((c = wintoclient(ev->window))) {
+		focus(c);
+		click = ClkClientWin;
+	}
+	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 && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
+}
+
+void
+checkotherwm(void) {
+	xerrorxlib = XSetErrorHandler(xerrorstart);
+	/* this causes an error if some other window manager is running */
+	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
+	XSync(dpy, False);
+	XSetErrorHandler(xerror);
+	XSync(dpy, False);
+}
+
+void
+cleanup(void) {
+	Arg a = {.ui = ~0};
+	Layout foo = { "", NULL };
+	Monitor *m;
+
+	view(&a);
+	selmon->lt[selmon->sellt] = &foo;
+	for(m = mons; m; m = m->next)
+		while(m->stack)
+			unmanage(m->stack, False);
+	XUngrabKey(dpy, AnyKey, AnyModifier, root);
+	while(mons)
+		cleanupmon(mons);
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	if(showsystray) {
+		XUnmapWindow(dpy, systray->win);
+		XDestroyWindow(dpy, systray->win);
+		free(systray);
+	}
+#endif
+	drw_cur_free(drw, cursor[CurNormal]);
+	drw_cur_free(drw, cursor[CurResize]);
+	drw_cur_free(drw, cursor[CurMove]);
+	drw_font_free(dpy, fnt);
+	drw_clr_free(scheme[SchemeNorm].border);
+	drw_clr_free(scheme[SchemeNorm].bg);
+	drw_clr_free(scheme[SchemeNorm].fg);
+	drw_clr_free(scheme[SchemeSel].border);
+	drw_clr_free(scheme[SchemeSel].bg);
+	drw_clr_free(scheme[SchemeSel].fg);
+	drw_free(drw);
+	XSync(dpy, False);
+	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+	XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+}
+
+void
+cleanupmon(Monitor *mon) {
+	Monitor *m;
+
+	if(mon == mons)
+		mons = mons->next;
+	else {
+		for(m = mons; m && m->next != mon; m = m->next);
+		m->next = mon->next;
+	}
+	XUnmapWindow(dpy, mon->barwin);
+	XDestroyWindow(dpy, mon->barwin);
+	free(mon);
+}
+
+void
+clearurgent(Client *c) {
+	XWMHints *wmh;
+
+	c->isurgent = False;
+	if(!(wmh = XGetWMHints(dpy, c->win)))
+		return;
+	wmh->flags &= ~XUrgencyHint;
+	XSetWMHints(dpy, c->win, wmh);
+	XFree(wmh);
+}
+
+void
+clientmessage(XEvent *e) {
+	XClientMessageEvent *cme = &e->xclient;
+	Client *c = wintoclient(cme->window);
+#ifdef CONFIG_DWM_PERTAG
+	int i;
+#endif
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	XWindowAttributes wa;
+	XSetWindowAttributes swa;
+#endif
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	if(showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
+		/* add systray icons */
+		if(cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
+			if(!(c = (Client *)calloc(1, sizeof(Client))))
+				die("fatal: could not malloc() %u bytes\n", sizeof(Client));
+			c->win = cme->data.l[2];
+			c->mon = selmon;
+			c->next = systray->icons;
+			systray->icons = c;
+			XGetWindowAttributes(dpy, c->win, &wa);
+			c->x = c->oldx = c->y = c->oldy = 0;
+			c->w = c->oldw = wa.width;
+			c->h = c->oldh = wa.height;
+			c->oldbw = wa.border_width;
+			c->bw = 0;
+			c->isfloating = True;
+			/* reuse tags field as mapped status */
+			c->tags = 1;
+			updatesizehints(c);
+			updatesystrayicongeom(c, wa.width, wa.height);
+			XAddToSaveSet(dpy, c->win);
+			XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
+			XReparentWindow(dpy, c->win, systray->win, 0, 0);
+			/* use parents background color */
+			swa.background_pixel  = scheme[SchemeNorm].bg->rgb;
+			XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			/* FIXME not sure if I have to send these events, too */
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			XSync(dpy, False);
+			resizebarwin(selmon);
+			updatesystray();
+			setclientstate(c, NormalState);
+		}
+		return;
+	}
+#endif
+	if(!c)
+		return;
+	if(cme->message_type == netatom[NetWMState]) {
+		if(cme->data.l[1] == netatom[NetWMFullscreen] || cme->data.l[2] == netatom[NetWMFullscreen])
+			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
+			              || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
+	}
+	else if(cme->message_type == netatom[NetActiveWindow]) {
+		if(!ISVISIBLE(c)) {
+			c->mon->seltags ^= 1;
+			c->mon->tagset[c->mon->seltags] = c->tags;
+		#ifdef CONFIG_DWM_PERTAG
+			for(i=0; !(c->tags & 1 << i); i++);
+			view(&(Arg){.ui = 1 << i});
+		#endif
+		}
+		pop(c);
+	}
+}
+
+void
+configure(Client *c) {
+	XConfigureEvent ce;
+
+	ce.type = ConfigureNotify;
+	ce.display = dpy;
+	ce.event = c->win;
+	ce.window = c->win;
+	ce.x = c->x;
+	ce.y = c->y;
+	ce.width = c->w;
+	ce.height = c->h;
+	ce.border_width = c->bw;
+	ce.above = None;
+	ce.override_redirect = False;
+	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
+}
+
+void
+configurenotify(XEvent *e) {
+	Monitor *m;
+	XConfigureEvent *ev = &e->xconfigure;
+	Bool dirty;
+
+	// TODO: updategeom handling sucks, needs to be simplified
+	if(ev->window == root) {
+		dirty = (sw != ev->width || sh != ev->height);
+		sw = ev->width;
+		sh = ev->height;
+		if(updategeom() || dirty) {
+			drw_resize(drw, sw, bh);
+			updatebars();
+			for(m = mons; m; m = m->next)
+			#ifdef CONFIG_DWM_SYSTEMTRAY
+				resizebarwin(m);
+			#else
+				XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
+			#endif
+		#ifdef CONFIG_DWM_PANGO
+			//XftDrawChange(drw->xft->drawable, drw->drawable);
+		#endif
+			focus(NULL);
+			arrange(NULL);
+		}
+	}
+}
+
+void
+configurerequest(XEvent *e) {
+	Client *c;
+	Monitor *m;
+	XConfigureRequestEvent *ev = &e->xconfigurerequest;
+	XWindowChanges wc;
+
+	if((c = wintoclient(ev->window))) {
+		if(ev->value_mask & CWBorderWidth)
+			c->bw = ev->border_width;
+		else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
+			m = c->mon;
+			if(ev->value_mask & CWX) {
+				c->oldx = c->x;
+				c->x = m->mx + ev->x;
+			}
+			if(ev->value_mask & CWY) {
+				c->oldy = c->y;
+				c->y = m->my + ev->y;
+			}
+			if(ev->value_mask & CWWidth) {
+				c->oldw = c->w;
+				c->w = ev->width;
+			}
+			if(ev->value_mask & CWHeight) {
+				c->oldh = c->h;
+				c->h = ev->height;
+			}
+			if((c->x + c->w) > m->mx + m->mw && c->isfloating)
+				c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
+			if((c->y + c->h) > m->my + m->mh && c->isfloating)
+				c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
+			if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
+				configure(c);
+			if(ISVISIBLE(c))
+				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
+		}
+		else
+			configure(c);
+	}
+	else {
+		wc.x = ev->x;
+		wc.y = ev->y;
+		wc.width = ev->width;
+		wc.height = ev->height;
+		wc.border_width = ev->border_width;
+		wc.sibling = ev->above;
+		wc.stack_mode = ev->detail;
+		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
+	}
+	XSync(dpy, False);
+}
+
+Monitor *
+createmon(void) {
+	Monitor *m;
+#ifdef CONFIG_DWM_PERTAG
+	int i;
+#endif
+
+	if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
+		die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
+	m->tagset[0] = m->tagset[1] = 1;
+	m->mfact = mfact;
+	m->nmaster = nmaster;
+	m->showbar = showbar;
+	m->topbar = topbar;
+	m->lt[0] = &layouts[0];
+	m->lt[1] = &layouts[1 % LENGTH(layouts)];
+	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+#ifdef CONFIG_DWM_PERTAG
+	if(!(m->pertag = (Pertag *)calloc(1, sizeof(Pertag))))
+		die("fatal: could not malloc() %u bytes\n", sizeof(Pertag));
+	m->pertag->curtag = m->pertag->prevtag = 1;
+	for(i=0; i <= LENGTH(tags); i++) {
+		/* init nmaster */
+		m->pertag->nmasters[i] = m->nmaster;
+
+		/* init mfacts */
+		m->pertag->mfacts[i] = m->mfact;
+
+		/* init layouts */
+		m->pertag->ltidxs[i][0] = m->lt[0];
+		m->pertag->ltidxs[i][1] = m->lt[1];
+		m->pertag->sellts[i] = m->sellt;
+
+		/* init showbar */
+		m->pertag->showbars[i] = m->showbar;
+
+		/* swap focus and zoomswap*/
+		m->pertag->prevzooms[i] = NULL;
+	}
+#endif
+	return m;
+}
+
+void
+destroynotify(XEvent *e) {
+	Client *c;
+	XDestroyWindowEvent *ev = &e->xdestroywindow;
+
+	if((c = wintoclient(ev->window)))
+		unmanage(c, True);
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	else if((c = wintosystrayicon(ev->window))) {
+		removesystrayicon(c);
+		resizebarwin(selmon);
+		updatesystray();
+	}
+#endif
+}
+
+void
+detach(Client *c) {
+	Client **tc;
+
+	for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
+	*tc = c->next;
+}
+
+void
+detachstack(Client *c) {
+	Client **tc, *t;
+
+	for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
+	*tc = c->snext;
+
+	if(c == c->mon->sel) {
+		for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
+		c->mon->sel = t;
+	}
+}
+
+Monitor *
+dirtomon(int dir) {
+	Monitor *m = NULL;
+
+	if(dir > 0) {
+		if(!(m = selmon->next))
+			m = mons;
+	}
+	else if(selmon == mons)
+		for(m = mons; m->next; m = m->next);
+	else
+		for(m = mons; m->next != selmon; m = m->next);
+	return m;
+}
+
+void
+drawbar(Monitor *m) {
+	int x, xx, w;
+	unsigned int i, occ = 0, urg = 0;
+	Client *c;
+
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	resizebarwin(m);
+#endif
+	for(c = m->clients; c; c = c->next) {
+		occ |= c->tags;
+		if(c->isurgent)
+			urg |= c->tags;
+	}
+	x = 0;
+	for(i = 0; i < LENGTH(tags); i++) {
+		w = TEXTW(tags[i]);
+		drw_setscheme(drw, m->tagset[m->seltags] & 1 << i ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
+		drw_text(drw, x, 0, w, bh, tags[i], urg & 1 << i);
+		drw_rect(drw, x, 0, w, bh, m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
+		           occ & 1 << i, urg & 1 << i);
+		x += w;
+	}
+	w = blw = TEXTW(m->ltsymbol);
+	drw_setscheme(drw, &scheme[SchemeNorm]);
+	drw_text(drw, x, 0, w, bh, m->ltsymbol, 0);
+	x += w;
+	xx = x;
+	if(m == selmon) { /* status is only drawn on selected monitor */
+		w = TEXTW(stext);
+		x = m->ww - w;
+		if(x < xx) {
+			x = xx;
+			w = m->ww - xx;
+		}
+		drw_text(drw, x, 0, w, bh, stext, 0);
+	}
+	else
+		x = m->ww;
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	if(showsystray && m == systraytomon(m)) {
+		x -= getsystraywidth();
+	}
+#endif
+	if((w = x - xx) > bh) {
+		x = xx;
+		if(m->sel) {
+			drw_setscheme(drw, m == selmon ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
+			drw_text(drw, x, 0, w, bh, m->sel->name, 0);
+			drw_rect(drw, x, 0, w, bh, m->sel->isfixed, m->sel->isfloating, 0);
+		}
+		else {
+			drw_setscheme(drw, &scheme[SchemeNorm]);
+			drw_text(drw, x, 0, w, bh, NULL, 0);
+		}
+	}
+	drw_map(drw, m->barwin, 0, 0, m->ww, bh);
+}
+
+void
+drawbars(void) {
+	Monitor *m;
+
+	for(m = mons; m; m = m->next)
+		drawbar(m);
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	updatesystray();
+#endif
+}
+
+void
+enternotify(XEvent *e) {
+	Client *c;
+	Monitor *m;
+	XCrossingEvent *ev = &e->xcrossing;
+
+	if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
+		return;
+	c = wintoclient(ev->window);
+	m = c ? c->mon : wintomon(ev->window);
+	if(m != selmon) {
+		unfocus(selmon->sel, True);
+		selmon = m;
+	}
+	else if(!c || c == selmon->sel)
+		return;
+	focus(c);
+}
+
+void
+expose(XEvent *e) {
+	Monitor *m;
+	XExposeEvent *ev = &e->xexpose;
+
+	if(ev->count == 0 && (m = wintomon(ev->window))){
+		drawbar(m);
+	#ifdef CONFIG_DWM_SYSTEMTRAY
+		if(m == selmon)
+			updatesystray();
+	#endif
+	}
+}
+
+void
+focus(Client *c) {
+	if(!c || !ISVISIBLE(c))
+		for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
+	/* was if(selmon->sel) */
+	if(selmon->sel && selmon->sel != c)
+		unfocus(selmon->sel, False);
+	if(c) {
+		if(c->mon != selmon)
+			selmon = c->mon;
+		if(c->isurgent)
+			clearurgent(c);
+		detachstack(c);
+		attachstack(c);
+		grabbuttons(c, True);
+		XSetWindowBorder(dpy, c->win, scheme[SchemeSel].border->rgb);
+		setfocus(c);
+	}
+	else {
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+	}
+	selmon->sel = c;
+	drawbars();
+}
+
+void
+focusin(XEvent *e) { /* there are some broken focus acquiring clients */
+	XFocusChangeEvent *ev = &e->xfocus;
+
+	if(selmon->sel && ev->window != selmon->sel->win)
+		setfocus(selmon->sel);
+}
+
+void
+focusmon(const Arg *arg) {
+	Monitor *m;
+
+	if(!mons->next)
+		return;
+	if((m = dirtomon(arg->i)) == selmon)
+		return;
+	unfocus(selmon->sel, False); /* s/True/False/ fixes input focus issues
+					in gedit and anjuta */
+	selmon = m;
+	focus(NULL);
+}
+
+void
+focusstack(const Arg *arg) {
+	Client *c = NULL, *i;
+
+	if(!selmon->sel)
+		return;
+	if(arg->i > 0) {
+		for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
+		if(!c)
+			for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
+	}
+	else {
+		for(i = selmon->clients; i != selmon->sel; i = i->next)
+			if(ISVISIBLE(i))
+				c = i;
+		if(!c)
+			for(; i; i = i->next)
+				if(ISVISIBLE(i))
+					c = i;
+	}
+	if(c) {
+		focus(c);
+		restack(selmon);
+	}
+}
+
+Atom
+getatomprop(Client *c, Atom prop) {
+	int di;
+	unsigned long dl;
+	unsigned char *p = NULL;
+	Atom da, atom = None;
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	/* FIXME getatomprop should return the number of items and a pointer to
+	 * the stored data instead of this workaround */
+	Atom req = XA_ATOM;
+	if(prop == xatom[XembedInfo])
+		req = xatom[XembedInfo];
+#endif
+
+	if(XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, 
+#ifdef CONFIG_DWM_SYSTEMTRAY
+	req,
+#else
+	XA_ATOM,
+#endif
+	                      &da, &di, &dl, &dl, &p) == Success && p) {
+		atom = *(Atom *)p;
+	#ifdef CONFIG_DWM_SYSTEMTRAY
+		if(da == xatom[XembedInfo] && dl == 2)
+			atom = ((Atom *)p)[1];
+	#endif
+		XFree(p);
+	}
+	return atom;
+}
+
+Bool
+getrootptr(int *x, int *y) {
+	int di;
+	unsigned int dui;
+	Window dummy;
+
+	return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
+}
+
+long
+getstate(Window w) {
+	int format;
+	long result = -1;
+	unsigned char *p = NULL;
+	unsigned long n, extra;
+	Atom real;
+
+	if(XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
+	                      &real, &format, &n, &extra, (unsigned char **)&p) != Success)
+		return -1;
+	if(n != 0)
+		result = *p;
+	XFree(p);
+	return result;
+}
+
+Bool
+gettextprop(Window w, Atom atom, char *text, unsigned int size) {
+	char **list = NULL;
+	int n;
+	XTextProperty name;
+
+	if(!text || size == 0)
+		return False;
+	text[0] = '\0';
+	XGetTextProperty(dpy, w, &name, atom);
+	if(!name.nitems)
+		return False;
+	if(name.encoding == XA_STRING)
+		strncpy(text, (char *)name.value, size - 1);
+	else {
+		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
+			strncpy(text, *list, size - 1);
+			XFreeStringList(list);
+		}
+	}
+	text[size - 1] = '\0';
+	XFree(name.value);
+	return True;
+}
+
+void
+grabbuttons(Client *c, Bool focused) {
+	updatenumlockmask();
+	{
+		unsigned int i, j;
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+		if(focused) {
+			for(i = 0; i < LENGTH(buttons); i++)
+				if(buttons[i].click == ClkClientWin)
+					for(j = 0; j < LENGTH(modifiers); j++)
+						XGrabButton(dpy, buttons[i].button,
+						            buttons[i].mask | modifiers[j],
+						            c->win, False, BUTTONMASK,
+