6.5

1 files changed, 825 insertions, 450 deletions

diff --git a/dwm.c b/dwm.c
index d6788e0..6379295 100644
--- a/dwm.c
+++ b/dwm.c
@@ -40,6 +40,12 @@
 #include <X11/extensions/Xinerama.h>
 #endif /* XINERAMA */
 #include <X11/Xft/Xft.h>
+#include <X11/Xlib-xcb.h>
+#include <xcb/res.h>
+#ifdef __OpenBSD__
+#include <sys/sysctl.h>
+#include <kvm.h>
+#endif /* __OpenBSD */
 
 #include "drw.h"
 #include "util.h"
@@ -51,7 +57,6 @@
                                * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
 #define ISVISIBLEONTAG(C, T)    ((C->tags & T))
 #define ISVISIBLE(C)            ISVISIBLEONTAG(C, 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)
@@ -106,13 +111,15 @@ struct Client {
 	int x, y, w, h;
 	int sfx, sfy, sfw, sfh; /* stored float geometry, used on mode revert */
 	int oldx, oldy, oldw, oldh;
-	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
+	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
 	int bw, oldbw;
 	unsigned int tags;
-	unsigned int switchtotag;
-	int isfixed, isfloating, isfreesize, isurgent, neverfocus, oldstate, isfullscreen;
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, isterminal, noswallow, isforegrounded;
+	pid_t pid;
 	Client *next;
 	Client *snext;
+	Client *tnext;
+	Client *swallowing;
 	Monitor *mon;
 	Window win;
 };
@@ -147,6 +154,7 @@ struct Monitor {
 	Client *clients;
 	Client *sel;
 	Client *stack;
+	Client *foregrounded;
 	Monitor *next;
 	Window barwin;
 	const Layout *lt[2];
@@ -158,9 +166,9 @@ typedef struct {
 	const char *instance;
 	const char *title;
 	unsigned int tags;
-	unsigned int switchtotag;
 	int isfloating;
-	int isfreesize;
+	int isterminal;
+	int noswallow;
 	int monitor;
 } Rule;
 
@@ -179,6 +187,10 @@ static void attach(Client *c);
 static void attachBelow(Client *c);
 static void attachstack(Client *c);
 static void buttonpress(XEvent *e);
+static void bstack(Monitor *m);
+static void bstackhoriz(Monitor *m);
+static void centeredmaster(Monitor *m);
+static void centeredfloatingmaster(Monitor *m);
 static void checkotherwm(void);
 static void cleanup(void);
 static void cleanupmon(Monitor *mon);
@@ -203,7 +215,7 @@ static void focusstack(const Arg *arg);
 static Atom getatomprop(Client *c, Atom prop);
 static int getrootptr(int *x, int *y);
 static long getstate(Window w);
-static unsigned int getsystraywidth();
+static unsigned int getsystraywidth(void);
 static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
 static void grabbuttons(Client *c, int focused);
 static void grabkeys(void);
@@ -215,9 +227,10 @@ static void mappingnotify(XEvent *e);
 static void maprequest(XEvent *e);
 static void monocle(Monitor *m);
 static void movemouse(const Arg *arg);
+static void movestack(const Arg *arg);
 static Client *nexttagged(Client *c);
 static Client *nexttiled(Client *c);
-static void pop(Client *);
+static void nrowgrid(Monitor *m);
 static void propertynotify(XEvent *e);
 static void quit(const Arg *arg);
 static Monitor *recttomon(int x, int y, int w, int h);
@@ -241,7 +254,6 @@ static void setmfact(const Arg *arg);
 static void setup(void);
 static void seturgent(Client *c, int urg);
 static void showhide(Client *c);
-static void sigchld(int unused);
 static void spawn(const Arg *arg);
 static Monitor *systraytomon(Monitor *m);
 static void switchtag(const Arg *arg);
@@ -250,9 +262,10 @@ static void tagmon(const Arg *arg);
 static void tagnextmon(const Arg *arg);
 static void tagprevmon(const Arg *arg);
 static void tagothermon(const Arg *arg, int dir);
-static void tile(Monitor *);
+static void tile(Monitor *m);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
+static void toggleforegrounded(const Arg *arg);
 static void togglefullscr(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
@@ -276,15 +289,17 @@ static void view(const Arg *arg);
 static Client *wintoclient(Window w);
 static Monitor *wintomon(Window w);
 static Client *wintosystrayicon(Window w);
+static void winview(const Arg* arg);
 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);
-static void centeredmaster(Monitor *m);
-static void centeredfloatingmaster(Monitor *m);
-static void bstack(Monitor *m);
-static void bstackhoriz(Monitor *m);
-static void stairs(Monitor *m);
+
+static pid_t getparentprocess(pid_t p);
+static int isdescprocess(pid_t p, pid_t c);
+static Client *swallowingclient(Window w);
+static Client *termforwin(const Client *c);
+static pid_t winpid(Window w);
 
 /* variables */
 static Systray *systray = NULL;
@@ -293,7 +308,7 @@ static const char broken[] = "broken";
 static char stext[256];
 static int screen;
 static int sw, sh;           /* X display screen geometry width, height */
-static int bh, blw = 0;      /* bar geometry */
+static int bh;               /* bar height */
 static int lrpad;            /* sum of left and right padding for text */
 static int (*xerrorxlib)(Display *, XErrorEvent *);
 static unsigned int numlockmask = 0;
@@ -316,12 +331,14 @@ static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
 static int running = 1;
 static Cur *cursor[CurLast];
 static Clr **scheme;
-static Clr **tagscheme;
 static Display *dpy;
 static Drw *drw;
 static Monitor *mons, *selmon;
 static Window root, wmcheckwin;
 
+static xcb_connection_t *xcon;
+
+
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
@@ -349,7 +366,6 @@ applyrules(Client *c)
 
 	/* rule matching */
 	c->isfloating = 0;
-	c->isfreesize = 1;
 	c->tags = 0;
 	XGetClassHint(dpy, c->win, &ch);
 	class    = ch.res_class ? ch.res_class : broken;
@@ -361,17 +377,13 @@ applyrules(Client *c)
 		&& (!r->class || strstr(class, r->class))
 		&& (!r->instance || strstr(instance, r->instance)))
 		{
+			c->isterminal = r->isterminal;
+			c->noswallow  = r->noswallow;
 			c->isfloating = r->isfloating;
-			c->isfreesize = r->isfreesize;
 			c->tags |= r->tags;
 			for (m = mons; m && m->num != r->monitor; m = m->next);
 			if (m)
 				c->mon = m;
-			if (r->switchtotag) {
-				Arg a = { .ui = r->tags };
-				c->switchtotag = selmon->tagset[selmon->seltags];
-				view(&a);
-			}
 		}
 	}
 	if (ch.res_class)
@@ -414,6 +426,8 @@ applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
 	if (*w < bh)
 		*w = bh;
 	if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
+		if (!c->hintsvalid)
+			updatesizehints(c);
 		/* 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 */
@@ -475,18 +489,19 @@ attach(Client *c)
 	c->next = c->mon->clients;
 	c->mon->clients = c;
 }
+
 void
 attachBelow(Client *c)
 {
 	//If there is nothing on the monitor or the selected client is floating, attach as normal
 	if(c->mon->sel == NULL || c->mon->sel->isfloating) {
-        Client *at = nexttagged(c);
-        if(!at) {
-            attach(c);
-            return;
-            }
-        c->next = at->next;
-        at->next = c;
+		Client *at = nexttagged(c);
+		if(!at) {
+			attach(c);
+			return;
+		}
+		c->next = at->next;
+		at->next = c;
 		return;
 	}
 
@@ -505,6 +520,68 @@ attachstack(Client *c)
 }
 
 void
+attachforegrounded (Client *c)
+{
+	c->tnext = c->mon->foregrounded;
+	c->mon->foregrounded = c;
+}
+
+void
+detachforegrounded (Client *c)
+{
+	Client **tc;
+	for (tc = &c->mon->foregrounded; *tc && *tc != c; tc = &(*tc)->tnext);
+	*tc = c->tnext;
+}
+
+void
+swallow(Client *p, Client *c)
+{
+
+	if (c->noswallow || c->isterminal)
+		return;
+	if (c->noswallow && !swallowfloating && c->isfloating)
+		return;
+
+	detach(c);
+	detachstack(c);
+
+	setclientstate(c, WithdrawnState);
+	XUnmapWindow(dpy, p->win);
+
+	p->swallowing = c;
+	c->mon = p->mon;
+
+	Window w = p->win;
+	p->win = c->win;
+	c->win = w;
+	updatetitle(p);
+	XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h);
+	arrange(p->mon);
+	configure(p);
+	updateclientlist();
+}
+
+void
+unswallow(Client *c)
+{
+	c->win = c->swallowing->win;
+
+	free(c->swallowing);
+	c->swallowing = NULL;
+
+	/* unfullscreen the client */
+	setfullscreen(c, 0);
+	updatetitle(c);
+	arrange(c->mon);
+	XMapWindow(dpy, c->win);
+	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
+	setclientstate(c, NormalState);
+	focus(NULL);
+	arrange(c->mon);
+}
+
+void
 buttonpress(XEvent *e)
 {
 	unsigned int i, x, click;
@@ -532,7 +609,7 @@ buttonpress(XEvent *e)
 		if(i < LENGTH(tags) && (drawtagmask & DRAWCLASSICTAGS)) {
 			click = ClkTagBar;
 			arg.ui = 1 << i;
-		} else if((ev->x < x + columns * bh / tagrows) && (drawtagmask & DRAWTAGGRID) != 0) {
+		} else if(ev->x < x + columns * bh / tagrows && (drawtagmask & DRAWTAGGRID)) {
 			click = ClkTagBar;
 			i = (ev->x - x) / (bh / tagrows);
 			i = i + columns * (ev->y / (bh / tagrows));
@@ -541,7 +618,7 @@ buttonpress(XEvent *e)
 			}
 			arg.ui = 1 << i;
 		}
-		else if(ev->x < x + blw + columns * bh / tagrows)
+		else if (ev->x < x + TEXTW(selmon->ltsymbol) + columns * bh / tagrows)
 			click = ClkLtSymbol;
 		else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
 			click = ClkStatusText;
@@ -559,6 +636,171 @@ buttonpress(XEvent *e)
 			buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
 }
 
+static void
+bstack(Monitor *m) {
+	int w, h, mh, mx, tx, ty, tw;
+	unsigned int i, n;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+	if (n > m->nmaster) {
+		mh = m->nmaster ? m->mfact * m->wh : 0;
+		tw = m->ww / (n - m->nmaster);
+		ty = m->wy + mh;
+	} else {
+		mh = m->wh;
+		tw = m->ww;
+		ty = m->wy;
+	}
+	for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
+			resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
+			mx += WIDTH(c);
+		} else {
+			h = m->wh - mh;
+			resize(c, tx, ty, tw - (2 * c->bw), h - (2 * c->bw), 0);
+			if (tw != m->ww)
+				tx += WIDTH(c);
+		}
+	}
+}
+
+static void
+bstackhoriz(Monitor *m) {
+	int w, mh, mx, tx, ty, th;
+	unsigned int i, n;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+	if (n > m->nmaster) {
+		mh = m->nmaster ? m->mfact * m->wh : 0;
+		th = (m->wh - mh) / (n - m->nmaster);
+		ty = m->wy + mh;
+	} else {
+		th = mh = m->wh;
+		ty = m->wy;
+	}
+	for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
+			resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
+			mx += WIDTH(c);
+		} else {
+			resize(c, tx, ty, m->ww - (2 * c->bw), th - (2 * c->bw), 0);
+			if (th != m->wh)
+				ty += HEIGHT(c);
+		}
+	}
+}
+
+void
+centeredmaster(Monitor *m)
+{
+	unsigned int i, n, h, mw, mx, my, oty, ety, tw;
+	Client *c;
+
+	/* count number of clients in the selected monitor */
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	/* initialize areas */
+	mw = m->ww;
+	mx = 0;
+	my = 0;
+	tw = mw;
+
+	if (n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		mw = m->nmaster ? m->ww * m->mfact : 0;
+		tw = m->ww - mw;
+
+		if (n - m->nmaster > 1) {
+			/* only one client */
+			mx = (m->ww - mw) / 2;
+			tw = (m->ww - mw) / 2;
+		}
+	}
+
+	oty = 0;
+	ety = 0;
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+	if (i < m->nmaster) {
+		/* nmaster clients are stacked vertically, in the center
+		 * of the screen */
+		h = (m->wh - my) / (MIN(n, m->nmaster) - i);
+		resize(c, m->wx + mx, m->wy + my, mw - (2*c->bw),
+		       h - (2*c->bw), 0);
+		my += HEIGHT(c);
+	} else {
+		/* stack clients are stacked vertically */
+		if ((i - m->nmaster) % 2 ) {
+			h = (m->wh - ety) / ( (1 + n - i) / 2);
+			resize(c, m->wx, m->wy + ety, tw - (2*c->bw),
+			       h - (2*c->bw), 0);
+			ety += HEIGHT(c);
+		} else {
+			h = (m->wh - oty) / ((1 + n - i) / 2);
+			resize(c, m->wx + mx + mw, m->wy + oty,
+			       tw - (2*c->bw), h - (2*c->bw), 0);
+			oty += HEIGHT(c);
+		}
+	}
+}
+
+void
+centeredfloatingmaster(Monitor *m)
+{
+	unsigned int i, n, w, mh, mw, mx, mxo, my, myo, tx;
+	Client *c;
+
+	/* count number of clients in the selected monitor */
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	/* initialize nmaster area */
+	if (n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (m->ww > m->wh) {
+			mw = m->nmaster ? m->ww * m->mfact : 0;
+			mh = m->nmaster ? m->wh * 0.9 : 0;
+		} else {
+			mh = m->nmaster ? m->wh * m->mfact : 0;
+			mw = m->nmaster ? m->ww * 0.9 : 0;
+		}
+		mx = mxo = (m->ww - mw) / 2;
+		my = myo = (m->wh - mh) / 2;
+	} else {
+		/* go fullscreen if all clients are in the master area */
+		mh = m->wh;
+		mw = m->ww;
+		mx = mxo = 0;
+		my = myo = 0;
+	}
+
+	for(i = tx = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+	if (i < m->nmaster) {
+		/* nmaster clients are stacked horizontally, in the center
+		 * of the screen */
+		w = (mw + mxo - mx) / (MIN(n, m->nmaster) - i);
+		resize(c, m->wx + mx, m->wy + my, w - (2*c->bw),
+		       mh - (2*c->bw), 0);
+		mx += WIDTH(c);
+	} else {
+		/* stack clients are stacked horizontally */
+		w = (m->ww - tx) / (n - i);
+		resize(c, m->wx + tx, m->wy, w - (2*c->bw),
+		       m->wh - (2*c->bw), 0);
+		tx += WIDTH(c);
+	}
+}
+
 void
 checkotherwm(void)
 {
@@ -597,6 +839,7 @@ cleanup(void)
 		drw_cur_free(drw, cursor[i]);
 	for (i = 0; i < LENGTH(colors); i++)
 		free(scheme[i]);
+	free(scheme);
 	XDestroyWindow(dpy, wmcheckwin);
 	drw_free(drw);
 	XSync(dpy, False);
@@ -828,6 +1071,8 @@ destroynotify(XEvent *e)
 
 	if ((c = wintoclient(ev->window)))
 		unmanage(c, 1);
+	else if ((c = swallowingclient(ev->window)))
+		unmanage(c->swallowing, 1);
 	else if ((c = wintosystrayicon(ev->window))) {
 		removesystrayicon(c);
 		resizebarwin(selmon);
@@ -907,7 +1152,7 @@ drawbar(Monitor *m)
 	if (drawtagmask & DRAWCLASSICTAGS)
 	for (i = 0; i < LENGTH(tags); i++) {
 		w = TEXTW(tags[i]);
-		drw_setscheme(drw, (m->tagset[m->seltags] & 1 << i ? tagscheme[i] : scheme[SchemeNorm]));
+		drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
 		drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
 		if (occ & 1 << i)
 			drw_rect(drw, x + boxs, boxs, boxw, boxw,
@@ -918,7 +1163,7 @@ drawbar(Monitor *m)
 	if (drawtagmask & DRAWTAGGRID) {
 		drawtaggrid(m,&x,occ);
 	}
-	w = blw = TEXTW(m->ltsymbol);
+	w = TEXTW(m->ltsymbol);
 	drw_setscheme(drw, scheme[SchemeNorm]);
 	x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
 
@@ -945,9 +1190,11 @@ drawbar(Monitor *m)
 					continue;
 				tw = MIN(m->sel == c ? w : mw, TEXTW(c->name));
 
-				drw_setscheme(drw, scheme[m == selmon && m->sel == c ? SchemeSel : SchemeNorm]);
+				drw_setscheme(drw, scheme[SchemeNorm]);
 				if (tw > lrpad / 2)
-					drw_text(drw, x, 0, tw, bh, lrpad / 2, c->name, 0);
+					drw_text(drw, x, text_ypos, tw, bh, lrpad / 2, c->name, 0);
+				drw_setscheme(drw, scheme[m == selmon && m->sel == c ? SchemeSel : SchemeNorm]);
+				drw_rect(drw, x , bh - brdsh_ypos , tw , brdsh_w , 1, 1);
 				if (c->isfloating)
 					drw_rect(drw, x + boxs, boxs, boxw, boxw, c->isfixed, 0);
 				x += tw;
@@ -969,47 +1216,48 @@ drawbars(void)
 		drawbar(m);
 }
 
-void drawtaggrid(Monitor *m, int *x_pos, unsigned int occ)
+void
+drawtaggrid(Monitor *m, int *x_pos, unsigned int occ)
 {
-    unsigned int x, y, h, max_x, columns;
-    int invert, i,j, k;
+	unsigned int x, y, h, max_x, columns;
+	int invert, i,j, k;
 
-    h = bh / tagrows;
-    x = max_x = *x_pos;
-    y = 0;
-    columns = LENGTH(tags) / tagrows + ((LENGTH(tags) % tagrows > 0) ? 1 : 0);
+	h = bh / tagrows;
+	x = max_x = *x_pos;
+	y = 0;
+	columns = LENGTH(tags) / tagrows + ((LENGTH(tags) % tagrows > 0) ? 1 : 0);
 
-    /* Firstly we will fill the borders of squares */
+	/* Firstly we will fill the borders of squares */
 
-    XSetForeground(drw->dpy, drw->gc, scheme[SchemeNorm][ColBorder].pixel);
-    XFillRectangle(dpy, drw->drawable, drw->gc, x, y, h*columns + 1, bh);
+	XSetForeground(drw->dpy, drw->gc, scheme[SchemeNorm][ColBorder].pixel);
+	XFillRectangle(dpy, drw->drawable, drw->gc, x, y, h*columns + 1, bh);
 
-    /* We will draw LENGTH(tags) squares in tagraws raws. */
+	/* We will draw LENGTH(tags) squares in tagraws raws. */
 	for(j = 0,  i= 0; j < tagrows; j++) {
-        x = *x_pos;
-        for (k = 0; k < columns && i < LENGTH(tags); k++, i++) {
-		    invert = m->tagset[m->seltags] & 1 << i ? 0 : 1;
-
-            /* Select active color for current square */
-            XSetForeground(drw->dpy, drw->gc, !invert ? scheme[SchemeSel][ColBg].pixel :
-                                scheme[SchemeNorm][ColFg].pixel);
-            XFillRectangle(dpy, drw->drawable, drw->gc, x+1, y+1, h-1, h-1);
-
-            /* Mark square if tag has client */
-            if (occ & 1 << i) {
-                XSetForeground(drw->dpy, drw->gc, !invert ? scheme[SchemeSel][ColFg].pixel :
-                                scheme[SchemeNorm][ColBg].pixel);
-                XFillRectangle(dpy, drw->drawable, drw->gc, x + 1, y + 1,
-                               h / 2, h / 2);
-            }
-		    x += h;
-            if (x > max_x) {
-                max_x = x;
-            }
-        }
-        y += h;
+		x = *x_pos;
+		for (k = 0; k < columns && i < LENGTH(tags); k++, i++) {
+			invert = m->tagset[m->seltags] & 1 << i ? 0 : 1;
+
+			/* Select active color for current square */
+			XSetForeground(drw->dpy, drw->gc, !invert ? scheme[SchemeSel][ColBg].pixel :
+				  scheme[SchemeNorm][ColFg].pixel);
+			XFillRectangle(dpy, drw->drawable, drw->gc, x+1, y+1, h-1, h-1);
+
+			/* Mark square if tag has client */
+			if (occ & 1 << i) {
+				XSetForeground(drw->dpy, drw->gc, !invert ? scheme[SchemeSel][ColFg].pixel :
+				   scheme[SchemeNorm][ColBg].pixel);
+				XFillRectangle(dpy, drw->drawable, drw->gc, x + 1, y + 1,
+				   h / 2, h / 2);
+			}
+			x += h;
+			if (x > max_x) {
+				max_x = x;
+			}
+		}
+		y += h;
 	}
-    *x_pos = max_x + 1;
+	*x_pos = max_x + 1;
 }
 
 void
@@ -1184,13 +1432,11 @@ gettextprop(Window w, Atom atom, char *text, unsigned int size)
 	text[0] = '\0';
 	if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
 		return 0;
-	if (name.encoding == XA_STRING)
+	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);
-		}
+	} 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);
@@ -1223,16 +1469,26 @@ grabkeys(void)
 {
 	updatenumlockmask();
 	{
-		unsigned int i, j;
+		unsigned int i, j, k;
 		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
-		KeyCode code;
+		int start, end, skip;
+		KeySym *syms;
 
 		XUngrabKey(dpy, AnyKey, AnyModifier, root);
-		for (i = 0; i < LENGTH(keys); i++)
-			if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
-				for (j = 0; j < LENGTH(modifiers); j++)
-					XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
-						True, GrabModeAsync, GrabModeAsync);
+		XDisplayKeycodes(dpy, &start, &end);
+		syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
+		if (!syms)
+			return;
+		for (k = start; k <= end; k++)
+			for (i = 0; i < LENGTH(keys); i++)
+				/* skip modifier codes, we do that ourselves */
+				if (keys[i].keysym == syms[(k - start) * skip])
+					for (j = 0; j < LENGTH(modifiers); j++)
+						XGrabKey(dpy, k,
+							 keys[i].mod | modifiers[j],
+							 root, True,
+							 GrabModeAsync, GrabModeAsync);
+		XFree(syms);
 	}
 }
 
@@ -1291,12 +1547,13 @@ killclient(const Arg *arg)
 void
 manage(Window w, XWindowAttributes *wa)
 {
-	Client *c, *t = NULL;
+	Client *c, *t = NULL, *term = NULL;
 	Window trans = None;
 	XWindowChanges wc;
 
 	c = ecalloc(1, sizeof(Client));
 	c->win = w;
+	c->pid = winpid(w);
 	/* geometry */
 	c->x = c->oldx = wa->x;
 	c->y = c->oldy = wa->y;
@@ -1311,16 +1568,15 @@ manage(Window w, XWindowAttributes *wa)
 	} else {
 		c->mon = selmon;
 		applyrules(c);
+		term = termforwin(c);
 	}
 
-	if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
-		c->x = c->mon->mx + c->mon->mw - WIDTH(c);
-	if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
-		c->y = c->mon->my + c->mon->mh - HEIGHT(c);
-	c->x = MAX(c->x, c->mon->mx);
-	/* only fix client y-offset, if the client center might cover the bar */
-	c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
-		&& (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
+	if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
+		c->x = c->mon->wx + c->mon->ww - WIDTH(c);
+	if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
+		c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
+	c->x = MAX(c->x, c->mon->wx);
+	c->y = MAX(c->y, c->mon->wy);
 	c->bw = borderpx;
 
 	wc.border_width = c->bw;
@@ -1336,7 +1592,6 @@ manage(Window w, XWindowAttributes *wa)
 	c->sfy = c->y;
 	c->sfw = c->w;
 	c->sfh = c->h;
-
 	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
 	grabbuttons(c, 0);
 	if (!c->isfloating)
@@ -1349,11 +1604,15 @@ manage(Window w, XWindowAttributes *wa)
 		(unsigned char *) &(c->win), 1);
 	XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
 	setclientstate(c, NormalState);
+	if(selmon->sel && selmon->sel->isfullscreen && !c->isfloating)
+		setfullscreen(selmon->sel, 0);
 	if (c->mon == selmon)
 		unfocus(selmon->sel, 0);
 	c->mon->sel = c;
 	arrange(c->mon);
 	XMapWindow(dpy, c->win);
+	if (term)
+		swallow(term, c);
 	focus(NULL);
 }
 
@@ -1380,9 +1639,7 @@ maprequest(XEvent *e)
 		updatesystray();
 	}
 
-	if (!XGetWindowAttributes(dpy, ev->window, &wa))
-		return;
-	if (wa.override_redirect)
+	if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
 		return;
 	if (!wintoclient(ev->window))
 		manage(ev->window, &wa);
@@ -1463,6 +1720,55 @@ movemouse(const Arg *arg)
 	}
 }
 
+void
+movestack(const Arg *arg) {
+	Client *c = NULL, *p = NULL, *pc = NULL, *i;
+
+	if(arg->i > 0) {
+		/* find the client after selmon->sel */
+		for(c = selmon->sel->next; c && (!ISVISIBLE(c) || c->isfloating); c = c->next);
+		if(!c)
+			for(c = selmon->clients; c && (!ISVISIBLE(c) || c->isfloating); c = c->next);
+
+	}
+	else {
+		/* find the client before selmon->sel */
+		for(i = selmon->clients; i != selmon->sel; i = i->next)
+			if(ISVISIBLE(i) && !i->isfloating)
+				c = i;
+		if(!c)
+			for(; i; i = i->next)
+				if(ISVISIBLE(i) && !i->isfloating)
+					c = i;
+	}
+	/* find the client before selmon->sel and c */
+	for(i = selmon->clients; i && (!p || !pc); i = i->next) {
+		if(i->next == selmon->sel)
+			p = i;
+		if(i->next == c)
+			pc = i;
+	}
+
+	/* swap c and selmon->sel selmon->clients in the selmon->clients list */
+	if(c && c != selmon->sel) {
+		Client *temp = selmon->sel->next==c?selmon->sel:selmon->sel->next;
+		selmon->sel->next = c->next==selmon->sel?c:c->next;
+		c->next = temp;
+
+		if(p && p != c)
+			p->next = c;
+		if(pc && pc != selmon->sel)
+			pc->next = selmon->sel;
+
+		if(selmon->sel == selmon->clients)
+			selmon->clients = c;
+		else if(c == selmon->clients)
+			selmon->clients = selmon->sel;
+
+		arrange(selmon);
+	}
+}
+
  Client *
 nexttagged(Client *c) {
 	Client *walked = c->mon->clients;
@@ -1480,13 +1786,90 @@ nexttiled(Client *c)
 	return c;
 }
 
+Client*
+nextforegrounded(Client *c)
+{
+	for (; c && (!c->isforegrounded || !ISVISIBLE(c)); c = c->tnext);
+	return c;
+}
+
 void
-pop(Client *c)
+arrangeforegrounded (Monitor *m)
 {
-	detach(c);
-	attach(c);
-	focus(c);
-	arrange(c->mon);
+	unsigned int n,i,x,y,w,h;
+	Client *c;
+
+	for (n = 0, c = nextforegrounded(m->foregrounded); c; c = nextforegrounded(c->tnext), n++);
+	if (n == 0)
+		return;
+
+	for (i = 0, c = nextforegrounded(m->foregrounded); c; c = nextforegrounded(c->tnext), i++){
+		if (n == 1) {
+			x = m->mx + (m->mw - m->mw * fgw) / 2;
+			y = m->my + (m->mh - m->mh * fgh) / 2;
+			w = (m->mw * fgw) - (2 * (m->foregrounded->bw));
+			h = (m->mh * fgh) - (2 * (m->foregrounded->bw));
+		} else {
+			x = m->mx + (n - 1 - i) * (m->mw / n);
+			y = m->my + (m->mh - m->mh * fgh) / 2;
+			w = (m->mw * (1 / (float)n)) - (2 * (m->foregrounded->bw));
+			h = (m->mh * fgh) - (2 * (m->foregrounded->bw));
+		}
+		resize(c,x,y,w,h,0);
+	}
+}
+
+void
+nrowgrid(Monitor *m)
+{
+	unsigned int n = 0, i = 0, ri = 0, ci = 0;  /* counters */
+	unsigned int cx, cy, cw, ch;                /* client geometry */
+	unsigned int uw = 0, uh = 0, uc = 0;        /* utilization trackers */
+	unsigned int cols, rows = m->nmaster + 1;
+	Client *c;
+
+	/* count clients */
+	for (c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+
+	/* nothing to do here */
+	if (n == 0)
+		return;
+
+	/* force 2 clients to always split vertically */
+	if (FORCE_VSPLIT && n == 2)
+		rows = 1;
+
+	/* never allow empty rows */
+	if (n < rows)
+		rows = n;
+
+	/* define first row */
+	cols = n / rows;
+	uc = cols;
+	cy = m->wy;
+	ch = m->wh / rows;
+	uh = ch;
+
+	for (c = nexttiled(m->clients); c; c = nexttiled(c->next), i++, ci++) {
+		if (ci == cols) {
+			uw = 0;
+			ci = 0;
+			ri++;
+
+			/* next row */
+			cols = (n - uc) / (rows - ri);
+			uc += cols;
+			cy = m->wy + uh;
+			ch = (m->wh - uh) / (rows - ri);
+			uh += ch;
+		}
+
+		cx = m->wx + uw;
+		cw = (m->ww - uw) / (cols - ci);
+		uw += cw;
+
+		resize(c, cx, cy, cw - 2 * c->bw, ch - 2 * c->bw, 0);
+	}
 }
 
 void
@@ -1520,7 +1903,7 @@ propertynotify(XEvent *e)
 				arrange(c->mon);
 			break;
 		case XA_WM_NORMAL_HINTS:
-			updatesizehints(c);
+			c->hintsvalid = 0;
 			break;
 		case XA_WM_HINTS:
 			updatewmhints(c);
@@ -1879,9 +2262,16 @@ setup(void)
 	int i;
 	XSetWindowAttributes wa;
 	Atom utf8string;
+	struct sigaction sa;
+
+	/* do not transform children into zombies when they terminate */
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
+	sa.sa_handler = SIG_IGN;
+	sigaction(SIGCHLD, &sa, NULL);
 
-	/* clean up any zombies immediately */
-	sigchld(0);
+	/* clean up any zombies (inherited from .xinitrc etc) immediately */
+	while (waitpid(-1, NULL, WNOHANG) > 0);
 
 	/* init screen */
 	screen = DefaultScreen(dpy);
@@ -1892,7 +2282,7 @@ setup(void)
 	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
 		die("no fonts could be loaded.");
 	lrpad = drw->fonts->h;
-	bh = user_bh ? user_bh : drw->fonts->h + 2;
+	bh = drw->fonts->h + 2;
 	updategeom();
 	/* init atoms */
 	utf8string = XInternAtom(dpy, "UTF8_STRING", False);
@@ -1921,14 +2311,9 @@ setup(void)
 	cursor[CurResize] = drw_cur_create(drw, XC_sizing);
 	cursor[CurMove] = drw_cur_create(drw, XC_fleur);
 	/* init appearance */
-	if (LENGTH(tags) > LENGTH(tagsel))
-		die("too few color schemes for the tags");
 	scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
 	for (i = 0; i < LENGTH(colors); i++)
 		scheme[i] = drw_scm_create(drw, colors[i], 3);
-	tagscheme = ecalloc(LENGTH(tagsel), sizeof(Clr *));
-	for (i = 0; i < LENGTH(tagsel); i++)
-		tagscheme[i] = drw_scm_create(drw, tagsel[i], 2);
 	/* init system tray */
 	updatesystray();
 	/* init bars */
@@ -1957,7 +2342,6 @@ setup(void)
 	focus(NULL);
 }
 
-
 void
 seturgent(Client *c, int urg)
 {
@@ -1988,140 +2372,103 @@ showhide(Client *c)
 		XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
 	}
 }
-void switchtag(const Arg *arg)
-{
-    unsigned int columns;
-    unsigned int new_tagset = 0;
-    unsigned int pos, i;
-    int col, row;
-    Arg new_arg;
-
-    columns = LENGTH(tags) / tagrows + ((LENGTH(tags) % tagrows > 0) ? 1 : 0);
-
-    for (i = 0; i < LENGTH(tags); ++i) {
-        if (!(selmon->tagset[selmon->seltags] & 1 << i)) {
-            continue;
-        }
-        pos = i;
-        row = pos / columns;
-        col = pos % columns;
-        if (arg->ui & SWITCHTAG_UP) {     /* UP */
-            row --;
-            if (row < 0) {
-                row = tagrows - 1;
-            }
-            do {
-                pos = row * columns + col;
-                row --;
-            } while (pos >= LENGTH(tags));
-        }
-        if (arg->ui & SWITCHTAG_DOWN) {     /* DOWN */
-            row ++;
-            if (row >= tagrows) {
-                row = 0;
-            }
-            pos = row * columns + col;
-            if (pos >= LENGTH(tags)) {
-                row = 0;
-            }
-            pos = row * columns + col;
-        }
-        if (arg->ui & SWITCHTAG_LEFT) {     /* LEFT */
-            col --;
-            if (col < 0) {
-                col = columns - 1;
-            }
-            do {
-                pos = row * columns + col;
-                col --;
-            } while (pos >= LENGTH(tags));
-        }
-        if (arg->ui & SWITCHTAG_RIGHT) {     /* RIGHT */
-            col ++;
-            if (col >= columns) {
-                col = 0;
-            }
-            pos = row * columns + col;
-            if (pos >= LENGTH(tags)) {
-                col = 0;
-                pos = row * columns + col;
-            }
-        }
-        new_tagset |= 1 << pos;
-    }
-    new_arg.ui = new_tagset;
-    if (arg->ui & SWITCHTAG_TOGGLETAG) {
-        toggletag(&new_arg);
-    }
-    if (arg->ui & SWITCHTAG_TAG) {
-        tag(&new_arg);
-    }
-    if (arg->ui & SWITCHTAG_VIEW) {
-        view (&new_arg);
-    }
-    if (arg->ui & SWITCHTAG_TOGGLEVIEW) {
-        toggleview (&new_arg);
-    }
-}
-
-void
-sigchld(int unused)
-{
-	if (signal(SIGCHLD, sigchld) == SIG_ERR)
-		die("can't install SIGCHLD handler:");
-	while (0 < waitpid(-1, NULL, WNOHANG));
-}
 
 void
 spawn(const Arg *arg)
 {
-	if (arg->v == dmenu_cmd)
+	struct sigaction sa;
+
+	if (arg->v == dmenucmd)
 		dmenumon[0] = '0' + selmon->num;
 	if (fork() == 0) {
 		if (dpy)
 			close(ConnectionNumber(dpy));
 		setsid();
+
+		sigemptyset(&sa.sa_mask);
+		sa.sa_flags = 0;
+		sa.sa_handler = SIG_DFL;
+		sigaction(SIGCHLD, &sa, NULL);
+
 		execvp(((char **)arg->v)[0], (char **)arg->v);
-		fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
-		perror(" failed");
-		exit(EXIT_SUCCESS);
+		die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
 	}
 }
 
 void
-stairs(Monitor *m)
+switchtag(const Arg *arg)
 {
-	unsigned int i, n, h, mw, my;
-	unsigned int ox, oy, ow, oh; /* stair offset values */
-	Client *c;
-
-	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
-	if (n == 0)
-		return;
+	unsigned int columns;
+	unsigned int new_tagset = 0;
+	unsigned int pos, i;
+	int col, row;
+	Arg new_arg;
 
-	if (n > m->nmaster)
-		mw = m->nmaster ? m->ww * m->mfact : 0;
-	else
-		mw = m->ww - m->gappx;
+	columns = LENGTH(tags) / tagrows + ((LENGTH(tags) % tagrows > 0) ? 1 : 0);
 
-	for (i = 0, my = m->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
-		if (i < m->nmaster) {
-			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gappx;
-			resize(c, m->wx + m->gappx, m->wy + my, mw - (2 * c->bw) - m->gappx, h - (2 * c->bw), 0);
-			if (my + HEIGHT(c) + m->gappx < m->wh)
-				my += HEIGHT(c) + m->gappx;
-		} else {
-			oy = i - m->nmaster;
-			ox = stairdirection ? n - i - 1 : (stairsamesize ? i - m->nmaster : 0);
-			ow = stairsamesize ? n - m->nmaster - 1 : n - i - 1;
-			oh = stairsamesize ? ow : i - m->nmaster;
-			resize(c,
-			       m->wx + mw + (ox * stairpx) + m->gappx,
-			       m->wy + (oy * stairpx) + m->gappx,
-			       m->ww - mw - (2 * c->bw) - (ow * stairpx) - (2 * m->gappx),
-			       m->wh - (2 * c->bw) - (oh * stairpx) - (2 * m->gappx),
-			       0);
+	for (i = 0; i < LENGTH(tags); ++i) {
+		if (!(selmon->tagset[selmon->seltags] & 1 << i)) {
+			continue;
+		}
+		pos = i;
+		row = pos / columns;
+		col = pos % columns;
+		if (arg->ui & SWITCHTAG_UP) {     /* UP */
+			row --;
+			if (row < 0) {
+				row = tagrows - 1;
+			}
+			do {
+				pos = row * columns + col;
+				row --;
+			} while (pos >= LENGTH(tags));
 		}
+		if (arg->ui & SWITCHTAG_DOWN) {     /* DOWN */
+			row ++;
+			if (row >= tagrows) {
+				row = 0;
+			}
+			pos = row * columns + col;
+			if (pos >= LENGTH(tags)) {
+				row = 0;
+			}
+			pos = row * columns + col;
+		}
+		if (arg->ui & SWITCHTAG_LEFT) {     /* LEFT */
+			col --;
+			if (col < 0) {
+				col = columns - 1;
+			}
+			do {
+				pos = row * columns + col;
+				col --;
+			} while (pos >= LENGTH(tags));
+		}
+		if (arg->ui & SWITCHTAG_RIGHT) {     /* RIGHT */
+			col ++;
+			if (col >= columns) {
+				col = 0;
+			}
+			pos = row * columns + col;
+			if (pos >= LENGTH(tags)) {
+				col = 0;
+				pos = row * columns + col;
+			}
+		}
+		new_tagset |= 1 << pos;
+	}
+	new_arg.ui = new_tagset;
+	if (arg->ui & SWITCHTAG_TOGGLETAG) {
+		toggletag(&new_arg);
+	}
+	if (arg->ui & SWITCHTAG_TAG) {
+		tag(&new_arg);
+	}
+	if (arg->ui & SWITCHTAG_VIEW) {
+		view (&new_arg);
+	}
+	if (arg->ui & SWITCHTAG_TOGGLEVIEW) {
+		toggleview (&new_arg);
 	}
 }
 
@@ -2188,7 +2535,7 @@ tile(Monitor *m)
 	else
 		mw = m->ww - m->gappx;
 	for (i = 0, my = ty = m->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
-		if (i < m->nmaster) {
+			if (i < m->nmaster) {
 			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gappx;
 			resize(c, m->wx + m->gappx, m->wy + my, mw - (2*c->bw) - m->gappx, h - (2*c->bw), 0);
 			if (my + HEIGHT(c) + m->gappx < m->wh)
@@ -2240,14 +2587,37 @@ togglefloating(const Arg *arg)
 		selmon->sel->sfw = selmon->sel->w;
 		selmon->sel->sfh = selmon->sel->h;
 	}
+	if (selmon->sel->isforegrounded) {
+		selmon->sel->isforegrounded = 0;
+		detachforegrounded(selmon->sel);
+		arrangeforegrounded(selmon);
+	}
+	arrange(selmon);
+}
+
+void
+toggleforegrounded(const Arg *arg)
+{
+	if (!selmon->sel)
+		return;
+	if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
+		return;
+
+	selmon->sel->isforegrounded || selmon->sel->isfloating ?
+		detachforegrounded(selmon->sel) : attachforegrounded(selmon->sel);
+
+	selmon->sel->isforegrounded = selmon->sel->isfloating =
+		!selmon->sel->isfloating && !selmon->sel->isforegrounded;
+
+	arrangeforegrounded(selmon);
 	arrange(selmon);
 }
 
 void
 togglefullscr(const Arg *arg)
 {
-  if(selmon->sel)
-    setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
+	if(selmon->sel)
+		setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
 }
 
 void
@@ -2320,12 +2690,33 @@ unmanage(Client *c, int destroyed)
 	Monitor *m = c->mon;
 	XWindowChanges wc;
 
+	if (c->swallowing) {
+		unswallow(c);
+		return;
+	}
+
+	Client *s = swallowingclient(c->win);
+	if (s) {
+		free(s->swallowing);
+		s->swallowing = NULL;
+		arrange(m);
+		focus(NULL);
+		return;
+	}
+
 	detach(c);
 	detachstack(c);
+
+	if (c->isforegrounded){
+		detachforegrounded(c);
+		arrangeforegrounded(m);
+	}
+
 	if (!destroyed) {
 		wc.border_width = c->oldbw;
 		XGrabServer(dpy); /* avoid race conditions */
 		XSetErrorHandler(xerrordummy);
+		XSelectInput(dpy, c->win, NoEventMask);
 		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
 		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 		setclientstate(c, WithdrawnState);
@@ -2334,12 +2725,11 @@ unmanage(Client *c, int destroyed)
 		XUngrabServer(dpy);
 	}
 	free(c);
-	focus(NULL);
-	updateclientlist();
-	arrange(m);
-	if (c->switchtotag) {
-		Arg a = { .ui = c->switchtotag };
-		view(&a);
+
+	if (!s) {
+		arrange(m);
+		focus(NULL);
+		updateclientlist();
 	}
 }
 
@@ -2405,7 +2795,7 @@ updatebarpos(Monitor *m)
 }
 
 void
-updateclientlist()
+updateclientlist(void)
 {
 	Client *c;
 	Monitor *m;
@@ -2439,43 +2829,43 @@ updategeom(void)
 				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
 		XFree(info);
 		nn = j;
-		if (n <= nn) { /* new monitors available */
-			for (i = 0; i < (nn - n); i++) {
-				for (m = mons; m && m->next; m = m->next);
-				if (m)
-					m->next = createmon();
-				else
-					mons = createmon();
+
+		/* new monitors if nn > n */
+		for (i = n; i < nn; i++) {
+			for (m = mons; m && m->next; m = m->next);
+			if (m)
+				m->next = createmon();
+			else
+				mons = createmon();
+		}
+		for (i = 0, m = mons; i < nn && m; m = m->next, i++)
+			if (i >= n
+			|| unique[i].x_org != m->mx || unique[i].y_org != m->my
+			|| unique[i].width != m->mw || unique[i].height != m->mh)
+			{
+				dirty = 1;
+				m->num = i;
+				m->mx = m->wx = unique[i].x_org;
+				m->my = m->wy = unique[i].y_org;
+				m->mw = m->ww = unique[i].width;
+				m->mh = m->wh = unique[i].height;
+				updatebarpos(m);
 			}
-			for (i = 0, m = mons; i < nn && m; m = m->next, i++)
-				if (i >= n
-				|| unique[i].x_org != m->mx || unique[i].y_org != m->my
-				|| unique[i].width != m->mw || unique[i].height != m->mh)
-				{
-					dirty = 1;
-					m->num = i;
-					m->mx = m->wx = unique[i].x_org;
-					m->my = m->wy = unique[i].y_org;
-					m->mw = m->ww = unique[i].width;
-					m->mh = m->wh = unique[i].height;
-					updatebarpos(m);
-				}
-		} else { /* less monitors available nn < n */
-			for (i = nn; i < n; i++) {
-				for (m = mons; m && m->next; m = m->next);
-				while ((c = m->clients)) {
-					dirty = 1;
-					m->clients = c->next;
-					detachstack(c);
-					c->mon = mons;
-					attach(c);
-					attachBelow(c);
-					attachstack(c);
-				}
-				if (m == selmon)
-					selmon = mons;
-				cleanupmon(m);
+		/* removed monitors if n > nn */
+		for (i = nn; i < n; i++) {
+			for (m = mons; m && m->next; m = m->next);
+			while ((c = m->clients)) {
+				dirty = 1;
+				m->clients = c->next;
+				detachstack(c);
+				c->mon = mons;
+				attach(c);
+				attachBelow(c);
+				attachstack(c);
 			}
+			if (m == selmon)
+				selmon = mons;
+			cleanupmon(m);
 		}
 		free(unique);
 	} else
@@ -2521,7 +2911,7 @@ updatesizehints(Client *c)
 
 	if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
 		/* size is uninitialized, ensure that size.flags aren't used */
-		size.flags = 0;
+		size.flags = PSize;
 	if (size.flags & PBaseSize) {
 		c->basew = size.base_width;
 		c->baseh = size.base_height;
@@ -2553,18 +2943,15 @@ updatesizehints(Client *c)
 		c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
 	} else
 		c->maxa = c->mina = 0.0;
-	if((size.flags & PSize) && c->isfreesize) {
-		c->basew = size.base_width;
-		c->baseh = size.base_height;
-		c->isfloating = 1;
-	}
 	c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
+	c->hintsvalid = 1;
 }
 
 void
 updatestatus(void)
 {
 	Monitor* m;
+
 	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
 		strcpy(stext, "dwm-"VERSION);
 	for(m = mons; m; m = m->next)
@@ -2707,10 +3094,8 @@ updatewindowtype(Client *c)
 
 	if (state == netatom[NetWMFullscreen])
 		setfullscreen(c, 1);
-	if (wtype == netatom[NetWMWindowTypeDialog]) {
+	if (wtype == netatom[NetWMWindowTypeDialog])
 		c->isfloating = 1;
-		c->isfreesize = 1;
-	}
 }
 
 void
@@ -2770,6 +3155,137 @@ view(const Arg *arg)
 	arrange(selmon);
 }
 
+pid_t
+winpid(Window w)
+{
+	pid_t result = 0;
+
+#ifdef __linux__
+	xcb_res_client_id_spec_t spec = {0};
+	spec.client = w;
+	spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
+
+	xcb_generic_error_t *e = NULL;
+	xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec);
+	xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e);
+
+	if (!r)
+		return (pid_t)0;
+
+	xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r);
+	for (; i.rem; xcb_res_client_id_value_next(&i)) {
+		spec = i.data->spec;
+		if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
+			uint32_t *t = xcb_res_client_id_value_value(i.data);
+			result = *t;
+			break;
+		}
+	}
+
+	free(r);
+
+	if (result == (pid_t)-1)
+		result = 0;
+
+#endif /* __linux__ */
+
+#ifdef __OpenBSD__
+        Atom type;
+        int format;
+        unsigned long len, bytes;
+        unsigned char *prop;
+        pid_t ret;
+
+        if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1, False, AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success || !prop)
+               return 0;
+
+        ret = *(pid_t*)prop;
+        XFree(prop);
+        result = ret;
+
+#endif /* __OpenBSD__ */
+	return result;
+}
+
+pid_t
+getparentprocess(pid_t p)
+{
+	unsigned int v = 0;
+	int s;
+
+#ifdef __linux__
+	FILE *f;
+	char buf[256];
+	snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
+
+	if (!(f = fopen(buf, "r")))
+		return 0;
+
+	s = fscanf(f, "%*u %*s %*c %u", &v);
+	(void)s;
+	fclose(f);
+#endif /* __linux__*/
+
+#ifdef __OpenBSD__
+	int n;
+	kvm_t *kd;
+	struct kinfo_proc *kp;
+
+	kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
+	if (!kd)
+		return 0;
+
+	kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
+	v = kp->p_ppid;
+#endif /* __OpenBSD__ */
+
+	return (pid_t)v;
+}
+
+int
+isdescprocess(pid_t p, pid_t c)
+{
+	while (p != c && c != 0)
+		c = getparentprocess(c);
+
+	return (int)c;
+}
+
+Client *
+termforwin(const Client *w)
+{
+	Client *c;
+	Monitor *m;
+
+	if (!w->pid || w->isterminal)
+		return NULL;
+
+	for (m = mons; m; m = m->next) {
+		for (c = m->clients; c; c = c->next) {
+			if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
+				return c;
+		}
+	}
+
+	return NULL;
+}
+
+Client *
+swallowingclient(Window w)
+{
+	Client *c;
+	Monitor *m;
+
+	for (m = mons; m; m = m->next) {
+		for (c = m->clients; c; c = c->next) {
+			if (c->swallowing && c->swallowing->win == w)
+				return c;
+		}
+	}
+
+	return NULL;
+}
+
 Client *
 wintoclient(Window w)
 {
@@ -2810,6 +3326,29 @@ wintomon(Window w)
 	return selmon;
 }
 
+/* Selects for the view of the focused window. The list of tags */
+/* to be displayed is matched to the focused window tag list. */
+void
+winview(const Arg* arg){
+	Window win, win_r, win_p, *win_c;
+	unsigned nc;
+	int unused;
+	Client* c;
+	Arg a;
+
+	if (!XGetInputFocus(dpy, &win, &unused))
+		return;
+	while (XQueryTree(dpy, win, &win_r, &win_p, &win_c, &nc)
+	       && win_p != win_r)
+		win = win_p;
+
+	if (!(c = wintoclient(win)))
+		return;
+
+	a.ui = c->tags;
+	view(&a);
+}
+
 /* There's no way to check accesses to destroyed windows, thus those cases are
  * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  * default error handler, which may call exit. */
@@ -2868,8 +3407,7 @@ zoom(const Arg *arg)
 	Client *c = selmon->sel;
 	Client *at = NULL, *cold, *cprevious = NULL;
 
-	if (!selmon->lt[selmon->sellt]->arrange
-	|| (selmon->sel && selmon->sel->isfloating))
+	if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
 		return;
 	if (c == nexttiled(selmon->clients)) {
 		at = findbefore(prevzoom);
@@ -2911,10 +3449,12 @@ main(int argc, char *argv[])
 		fputs("warning: no locale support\n", stderr);
 	if (!(dpy = XOpenDisplay(NULL)))
 		die("dwm: cannot open display");
+	if (!(xcon = XGetXCBConnection(dpy)))
+		die("dwm: cannot get xcb connection\n");
 	checkotherwm();
 	setup();
 #ifdef __OpenBSD__
-	if (pledge("stdio rpath proc exec", NULL) == -1)
+	if (pledge("stdio rpath proc exec ps", NULL) == -1)
 		die("pledge");
 #endif /* __OpenBSD__ */
 	scan();
@@ -2923,168 +3463,3 @@ main(int argc, char *argv[])
 	XCloseDisplay(dpy);
 	return EXIT_SUCCESS;
 }
-
-static void
-bstack(Monitor *m) {
-	int w, h, mh, mx, tx, ty, tw;
-	unsigned int i, n;
-	Client *c;
-
-	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
-	if (n == 0)
-		return;
-	if (n > m->nmaster) {
-		mh = m->nmaster ? m->mfact * m->wh : 0;
-		tw = m->ww / (n - m->nmaster);
-		ty = m->wy + mh;
-	} else {
-		mh = m->wh;
-		tw = m->ww;
-		ty = m->wy;
-	}
-	for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
-		if (i < m->nmaster) {
-			w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
-			resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
-			mx += WIDTH(c);
-		} else {
-			h = m->wh - mh;
-			resize(c, tx, ty, tw - (2 * c->bw), h - (2 * c->bw), 0);
-			if (tw != m->ww)
-				tx += WIDTH(c);
-		}
-	}
-}
-
-static void
-bstackhoriz(Monitor *m) {
-	int w, mh, mx, tx, ty, th;
-	unsigned int i, n;
-	Client *c;
-
-	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
-	if (n == 0)
-		return;
-	if (n > m->nmaster) {
-		mh = m->nmaster ? m->mfact * m->wh : 0;
-		th = (m->wh - mh) / (n - m->nmaster);
-		ty = m->wy + mh;
-	} else {
-		th = mh = m->wh;
-		ty = m->wy;
-	}
-	for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
-		if (i < m->nmaster) {
-			w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
-			resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
-			mx += WIDTH(c);
-		} else {
-			resize(c, tx, ty, m->ww - (2 * c->bw), th - (2 * c->bw), 0);
-			if (th != m->wh)
-				ty += HEIGHT(c);
-		}
-	}
-}
-
-void
-centeredmaster(Monitor *m)
-{
-	unsigned int i, n, h, mw, mx, my, oty, ety, tw;
-	Client *c;
-
-	/* count number of clients in the selected monitor */
-	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
-	if (n == 0)
-		return;
-
-	/* initialize areas */
-	mw = m->ww;
-	mx = 0;
-	my = 0;
-	tw = mw;
-
-	if (n > m->nmaster) {
-		/* go mfact box in the center if more than nmaster clients */
-		mw = m->nmaster ? m->ww * m->mfact : 0;
-		tw = m->ww - mw;
-
-		if (n - m->nmaster > 1) {
-			/* only one client */
-			mx = (m->ww - mw) / 2;
-			tw = (m->ww - mw) / 2;
-		}
-	}
-
-	oty = 0;
-	ety = 0;
-	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
-	if (i < m->nmaster) {
-		/* nmaster clients are stacked vertically, in the center
-		 * of the screen */
-		h = (m->wh - my) / (MIN(n, m->nmaster) - i);
-		resize(c, m->wx + mx, m->wy + my, mw - (2*c->bw),
-		       h - (2*c->bw), 0);
-		my += HEIGHT(c);
-	} else {
-		/* stack clients are stacked vertically */
-		if ((i - m->nmaster) % 2 ) {
-			h = (m->wh - ety) / ( (1 + n - i) / 2);
-			resize(c, m->wx, m->wy + ety, tw - (2*c->bw),
-			       h - (2*c->bw), 0);
-			ety += HEIGHT(c);
-		} else {
-			h = (m->wh - oty) / ((1 + n - i) / 2);
-			resize(c, m->wx + mx + mw, m->wy + oty,
-			       tw - (2*c->bw), h - (2*c->bw), 0);
-			oty += HEIGHT(c);
-		}
-	}
-}
-
-void
-centeredfloatingmaster(Monitor *m)
-{
-	unsigned int i, n, w, mh, mw, mx, mxo, my, myo, tx;
-	Client *c;
-
-	/* count number of clients in the selected monitor */
-	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
-	if (n == 0)
-		return;
-
-	/* initialize nmaster area */
-	if (n > m->nmaster) {
-		/* go mfact box in the center if more than nmaster clients */
-		if (m->ww > m->wh) {
-			mw = m->nmaster ? m->ww * m->mfact : 0;
-			mh = m->nmaster ? m->wh * 0.9 : 0;
-		} else {
-			mh = m->nmaster ? m->wh * m->mfact : 0;
-			mw = m->nmaster ? m->ww * 0.9 : 0;
-		}
-		mx = mxo = (m->ww - mw) / 2;
-		my = myo = (m->wh - mh) / 2;
-	} else {
-		/* go fullscreen if all clients are in the master area */
-		mh = m->wh;
-		mw = m->ww;
-		mx = mxo = 0;
-		my = myo = 0;
-	}
-
-	for(i = tx = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
-	if (i < m->nmaster) {
-		/* nmaster clients are stacked horizontally, in the center
-		 * of the screen */
-		w = (mw + mxo - mx) / (MIN(n, m->nmaster) - i);
-		resize(c, m->wx + mx, m->wy + my, w - (2*c->bw),
-		       mh - (2*c->bw), 0);
-		mx += WIDTH(c);
-	} else {
-		/* stack clients are stacked horizontally */
-		w = (m->ww - tx) / (n - i);
-		resize(c, m->wx + tx, m->wy, w - (2*c->bw),
-		       m->wh - (2*c->bw), 0);
-		tx += WIDTH(c);
-	}
-}