commit de1f142bdbc960d1b19981211486680808d5f7c4
Author: Ivan Tham <[email protected]>
Date:   Sat Oct 31 16:58:32 2015 +0800

    [dwm][pertag] Update against current git HEAD

diff --git a/dwm.suckless.org/patches/dwm-7e1182c-tab.diff 
b/dwm.suckless.org/patches/dwm-7e1182c-tab.diff
new file mode 100644
index 0000000..c1fa336
--- /dev/null
+++ b/dwm.suckless.org/patches/dwm-7e1182c-tab.diff
@@ -0,0 +1,506 @@
+diff --git a/config.def.h b/config.def.h
+index 3fde3cf..6a7ad0f 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -15,6 +15,13 @@ static const unsigned int borderpx  = 1;        /* border 
pixel of windows */
+ static const unsigned int snap      = 32;       /* snap pixel */
+ static const Bool showbar           = True;     /* False means no bar */
+ static const Bool topbar            = True;     /* False means bottom bar */
++/*   Display modes of the tab bar: never shown, always shown, shown only in */
++/*   monocle mode in presence of several windows.                           */
++/*   Modes after showtab_nmodes are disabled                                */
++enum showtab_modes { showtab_never, showtab_auto, showtab_nmodes, 
showtab_always};
++static const int showtab            = showtab_auto; /* Default tab bar show 
mode */
++static const Bool toptab            = False;    /* False means bottom tab bar 
*/
++
+ 
+ /* tagging */
+ static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
+@@ -32,7 +39,7 @@ static const Rule rules[] = {
+ /* layout(s) */
+ static const float mfact      = 0.55; /* factor of master area size 
[0.05..0.95] */
+ static const int nmaster      = 1;    /* number of clients in master area */
+-static const Bool resizehints = True; /* True means respect size hints in 
tiled resizals */
++static const Bool resizehints = False; /* True means respect size hints in 
tiled resizals */
+ 
+ static const Layout layouts[] = {
+       /* symbol     arrange function */
+@@ -62,6 +69,7 @@ static Key keys[] = {
+       { MODKEY,                       XK_p,      spawn,          {.v = 
dmenucmd } },
+       { MODKEY|ShiftMask,             XK_Return, spawn,          {.v = 
termcmd } },
+       { MODKEY,                       XK_b,      togglebar,      {0} },
++      { MODKEY,                       XK_w,      tabmode,        {-1} },
+       { MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
+       { MODKEY,                       XK_k,      focusstack,     {.i = -1 } },
+       { MODKEY,                       XK_i,      incnmaster,     {.i = +1 } },
+@@ -109,5 +117,6 @@ static Button buttons[] = {
+       { ClkTagBar,            0,              Button3,        toggleview,     
{0} },
+       { ClkTagBar,            MODKEY,         Button1,        tag,            
{0} },
+       { ClkTagBar,            MODKEY,         Button3,        toggletag,      
{0} },
++      { ClkTabBar,            0,              Button1,        focuswin,       
{0} },
+ };
+ 
+diff --git a/dwm.1 b/dwm.1
+index 6687011..f736591 100644
+--- a/dwm.1
++++ b/dwm.1
+@@ -19,14 +19,22 @@ layout applied.
+ Windows are grouped by tags. Each window can be tagged with one or multiple
+ tags. Selecting certain tags displays all windows with these tags.
+ .P
+-Each screen contains a small status bar which displays all available tags, the
+-layout, the title of the focused window, and the text read from the root 
window
+-name property, if the screen is focused. A floating window is indicated with 
an
+-empty square and a maximised floating window is indicated with a filled square
+-before the windows title.  The selected tags are indicated with a different
+-color. The tags of the focused window are indicated with a filled square in 
the
+-top left corner.  The tags which are applied to one or more windows are
+-indicated with an empty square in the top left corner.
++Each screen contains two small status bars.
++.P
++One bar displays all available tags, the layout, the title of the focused
++window, and the text read from the root window name property, if the screen is
++focused. A floating window is indicated with an empty square and a maximised
++floating window is indicated with a filled square before the windows title.
++The selected tags are indicated with a different color. The tags of the 
focused
++window are indicated with a filled square in the top left corner.  The tags
++which are applied to one or more windows are indicated with an empty square in
++the top left corner.
++.P
++Another bar contains a tab for each window of the current view and allows
++navigation between windows, especially in the monocle mode. The different
++display modes of this bar are described under the Mod1\-w Keybord command
++section.  When a single tag is selected, that tag is indicated in the left
++corner of the tab bar.
+ .P
+ dwm draws a small border around windows to indicate the focus state.
+ .SH OPTIONS
+@@ -43,7 +51,8 @@ command.
+ .TP
+ .B Button1
+ click on a tag label to display all windows with that tag, click on the layout
+-label toggles between tiled and floating layout.
++label toggles between tiled and floating layout, click on a window name in the
++tab bar brings focus to that window.
+ .TP
+ .B Button3
+ click on a tag label adds/removes all windows with that tag to/from the view.
+@@ -104,6 +113,12 @@ Increase master area size.
+ .B Mod1\-h
+ Decrease master area size.
+ .TP
++.B Mod1\-w
++Cycle over the tab bar display modes: never displayed, always displayed,
++displayed only in monocle mode when the view contains than one window (auto
++mode). Some display modes can be disabled in the configuration, config.h. In
++the default configuration only "never" and "auto" display modes are enabled.
++.TP
+ .B Mod1\-Return
+ Zooms/cycles focused window to/from master area (tiled layouts only).
+ .TP
+diff --git a/dwm.c b/dwm.c
+index 96b43f7..585dd7b 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -64,7 +64,7 @@ enum { NetSupported, NetWMName, NetWMState,
+        NetWMFullscreen, NetActiveWindow, NetWMWindowType,
+        NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
+ enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default 
atoms */
+-enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
++enum { ClkTagBar, ClkTabBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
+        ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
+ 
+ typedef union {
+@@ -111,24 +111,32 @@ typedef struct {
+       void (*arrange)(Monitor *);
+ } Layout;
+ 
++#define MAXTABS 50
++
+ struct Monitor {
+       char ltsymbol[16];
+       float mfact;
+       int nmaster;
+       int num;
+       int by;               /* bar geometry */
++      int ty;               /* tab 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 showtab;
+       Bool topbar;
++      Bool toptab;
+       Client *clients;
+       Client *sel;
+       Client *stack;
+       Monitor *next;
+       Window barwin;
++      Window tabwin;
++      int ntabs;
++      int tab_widths[MAXTABS];
+       const Layout *lt[2];
+ };
+ 
+@@ -164,12 +172,15 @@ static void detachstack(Client *c);
+ static Monitor *dirtomon(int dir);
+ static void drawbar(Monitor *m);
+ static void drawbars(void);
++static void drawtab(Monitor *m);
++static void drawtabs(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 void focuswin(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);
+@@ -206,6 +217,7 @@ static void setup(void);
+ static void showhide(Client *c);
+ static void sigchld(int unused);
+ static void spawn(const Arg *arg);
++static void tabmode(const Arg *arg);
+ static void tag(const Arg *arg);
+ static void tagmon(const Arg *arg);
+ static void tile(Monitor *);
+@@ -240,6 +252,7 @@ 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 th = 0;           /* tab bar geometry */
+ static int (*xerrorxlib)(Display *, XErrorEvent *);
+ static unsigned int numlockmask = 0;
+ static void (*handler[LASTEvent]) (XEvent *) = {
+@@ -389,6 +402,9 @@ arrange(Monitor *m) {
+ 
+ void
+ arrangemon(Monitor *m) {
++      updatebarpos(m);
++      XMoveResizeWindow(dpy, m->tabwin, m->wx, m->ty, m->ww, th);
++
+       strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
+       if(m->lt[m->sellt]->arrange)
+               m->lt[m->sellt]->arrange(m);
+@@ -437,14 +453,32 @@ buttonpress(XEvent *e) {
+               else
+                       click = ClkWinTitle;
+       }
++      if(ev->window == selmon->tabwin) {
++              i = 0; x = 0;
++              for(c = selmon->clients; c; c = c->next){
++                if(!ISVISIBLE(c)) continue;
++                x += selmon->tab_widths[i];
++                if (ev->x > x)
++                  ++i;
++                else
++                  break;
++                if(i >= m->ntabs) break;
++              }
++              if(c) {
++                click = ClkTabBar;
++                arg.ui = i;
++              }
++      }
+       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);
++                 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)){
++                buttons[i].func(((click == ClkTagBar || click == ClkTabBar)
++                                 && buttons[i].arg.i == 0) ? &arg : 
&buttons[i].arg);
++              }
+ }
+ 
+ void
+@@ -497,6 +531,8 @@ cleanupmon(Monitor *mon) {
+       }
+       XUnmapWindow(dpy, mon->barwin);
+       XDestroyWindow(dpy, mon->barwin);
++      XUnmapWindow(dpy, mon->tabwin);
++      XDestroyWindow(dpy, mon->tabwin);
+       free(mon);
+ }
+ 
+@@ -565,8 +601,11 @@ configurenotify(XEvent *e) {
+               if(updategeom() || dirty) {
+                       drw_resize(drw, sw, bh);
+                       updatebars();
+-                      for(m = mons; m; m = m->next)
++                      //refreshing display of status bar. The tab bar is 
handled by the arrange()
++                      //method, which is called below
++                      for(m = mons; m; m = m->next){
+                               XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, 
m->ww, bh);
++                      }
+                       focus(NULL);
+                       arrange(NULL);
+               }
+@@ -635,7 +674,10 @@ createmon(void) {
+       m->mfact = mfact;
+       m->nmaster = nmaster;
+       m->showbar = showbar;
++      m->showtab = showtab;
+       m->topbar = topbar;
++      m->toptab = toptab;
++      m->ntabs = 0;
+       m->lt[0] = &layouts[0];
+       m->lt[1] = &layouts[1 % LENGTH(layouts)];
+       strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+@@ -749,6 +791,104 @@ drawbars(void) {
+ }
+ 
+ void
++drawtabs(void) {
++      Monitor *m;
++
++      for(m = mons; m; m = m->next)
++              drawtab(m);
++}
++
++static int
++cmpint(const void *p1, const void *p2) {
++  /* The actual arguments to this function are "pointers to
++     pointers to char", but strcmp(3) arguments are "pointers
++     to char", hence the following cast plus dereference */
++  return *((int*) p1) > * (int*) p2;
++}
++
++
++void
++drawtab(Monitor *m) {
++      Client *c;
++      int i;
++      int itag = -1;
++      char view_info[50];
++      int view_info_w = 0;
++      int sorted_label_widths[MAXTABS];
++      int tot_width;
++      int maxsize = bh;
++      int x = 0;
++      int w = 0;
++
++      //view_info: indicate the tag which is displayed in the view
++      for(i = 0; i < LENGTH(tags); ++i){
++        if((selmon->tagset[selmon->seltags] >> i) & 1) {
++          if(itag >=0){ //more than one tag selected
++            itag = -1;
++            break;
++          }
++          itag = i;
++        }
++      }
++      if(0 <= itag  && itag < LENGTH(tags)){
++        snprintf(view_info, sizeof view_info, "[%s]", tags[itag]);
++      } else {
++        strncpy(view_info, "[...]", sizeof view_info);
++      }
++      view_info[sizeof(view_info) - 1 ] = 0;
++      view_info_w = TEXTW(view_info);
++      tot_width = view_info_w;
++
++      /* Calculates number of labels and their width */
++      m->ntabs = 0;
++      for(c = m->clients; c; c = c->next){
++        if(!ISVISIBLE(c)) continue;
++        m->tab_widths[m->ntabs] = TEXTW(c->name);
++        tot_width += m->tab_widths[m->ntabs];
++        ++m->ntabs;
++        if(m->ntabs >= MAXTABS) break;
++      }
++
++      if(tot_width > m->ww){ //not enough space to display the labels, they 
need to be truncated
++        memcpy(sorted_label_widths, m->tab_widths, sizeof(int) * m->ntabs);
++        qsort(sorted_label_widths, m->ntabs, sizeof(int), cmpint);
++        tot_width = view_info_w;
++        for(i = 0; i < m->ntabs; ++i){
++          if(tot_width + (m->ntabs - i) * sorted_label_widths[i] > m->ww)
++            break;
++          tot_width += sorted_label_widths[i];
++        }
++        maxsize = (m->ww - tot_width) / (m->ntabs - i);
++      } else{
++        maxsize = m->ww;
++      }
++      i = 0;
++      for(c = m->clients; c; c = c->next){
++        if(!ISVISIBLE(c)) continue;
++        if(i >= m->ntabs) break;
++        if(m->tab_widths[i] >  maxsize) m->tab_widths[i] = maxsize;
++        w = m->tab_widths[i];
++        drw_setscheme(drw, (c == m->sel) ? &scheme[SchemeSel] : 
&scheme[SchemeNorm]);
++        drw_text(drw, x, 0, w, th, c->name, 0);
++        x += w;
++        ++i;
++      }
++
++      drw_setscheme(drw, &scheme[SchemeNorm]);
++
++      /* cleans interspace between window names and current viewed tag label 
*/
++      w = m->ww - view_info_w - x;
++      drw_text(drw, x, 0, w, th, NULL, 0);
++
++      /* view info */
++      x += w;
++      w = view_info_w;
++      drw_text(drw, x, 0, w, th, view_info, 0);
++
++      drw_map(drw, m->tabwin, 0, 0, m->ww, th);
++}
++
++void
+ enternotify(XEvent *e) {
+       Client *c;
+       Monitor *m;
+@@ -772,8 +912,10 @@ expose(XEvent *e) {
+       Monitor *m;
+       XExposeEvent *ev = &e->xexpose;
+ 
+-      if(ev->count == 0 && (m = wintomon(ev->window)))
++      if(ev->count == 0 && (m = wintomon(ev->window))){
+               drawbar(m);
++              drawtab(m);
++      }
+ }
+ 
+ void
+@@ -800,6 +942,7 @@ focus(Client *c) {
+       }
+       selmon->sel = c;
+       drawbars();
++      drawtabs();
+ }
+ 
+ void
+@@ -850,6 +993,19 @@ focusstack(const Arg *arg) {
+       }
+ }
+ 
++void
++focuswin(const Arg* arg){
++  int iwin = arg->i;
++  Client* c = NULL;
++  for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
++    if(ISVISIBLE(c)) --iwin;
++  };
++  if(c) {
++    focus(c);
++    restack(selmon);
++  }
++}
++
+ Atom
+ getatomprop(Client *c, Atom prop) {
+       int di;
+@@ -1215,12 +1371,14 @@ propertynotify(XEvent *e) {
+               case XA_WM_HINTS:
+                       updatewmhints(c);
+                       drawbars();
++                      drawtabs();
+                       break;
+               }
+               if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
+                       updatetitle(c);
+                       if(c == c->mon->sel)
+                               drawbar(c->mon);
++                      drawtab(c->mon);
+               }
+               if(ev->atom == netatom[NetWMWindowType])
+                       updatewindowtype(c);
+@@ -1328,6 +1486,7 @@ restack(Monitor *m) {
+       XWindowChanges wc;
+ 
+       drawbar(m);
++      drawtab(m);
+       if(!m->sel)
+               return;
+       if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
+@@ -1511,6 +1670,8 @@ setup(void) {
+       if (!drw->fontcount)
+               die("no fonts could be loaded.
");
+       bh = drw->fonts[0]->h + 2;
++      th = bh;
++
+       updategeom();
+       /* init atoms */
+       wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
+@@ -1642,6 +1803,16 @@ togglebar(const Arg *arg) {
+ }
+ 
+ void
++tabmode(const Arg *arg) {
++      if(arg && arg->i >= 0)
++              selmon->showtab = arg->ui % showtab_nmodes;
++      else
++              selmon->showtab = (selmon->showtab + 1 ) % showtab_nmodes;
++      arrange(selmon);
++}
++
++
++void
+ togglefloating(const Arg *arg) {
+       if(!selmon->sel)
+               return;
+@@ -1745,20 +1916,43 @@ updatebars(void) {
+                                         
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
+               XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
+               XMapRaised(dpy, m->barwin);
++              m->tabwin = XCreateWindow(dpy, root, m->wx, m->ty, m->ww, th, 
0, DefaultDepth(dpy, screen),
++                                        CopyFromParent, DefaultVisual(dpy, 
screen),
++                                        
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
++              XDefineCursor(dpy, m->tabwin, cursor[CurNormal]->cursor);
++              XMapRaised(dpy, m->tabwin);
+       }
+ }
+ 
+ void
+ updatebarpos(Monitor *m) {
++      Client *c;
++      int nvis = 0;
++
+       m->wy = m->my;
+       m->wh = m->mh;
+       if(m->showbar) {
+               m->wh -= bh;
+               m->by = m->topbar ? m->wy : m->wy + m->wh;
+-              m->wy = m->topbar ? m->wy + bh : m->wy;
+-      }
+-      else
++              if ( m->topbar )
++                      m->wy += bh;
++      } else {
+               m->by = -bh;
++      }
++
++      for(c = m->clients; c; c = c->next){
++        if(ISVISIBLE(c)) ++nvis;
++      }
++
++      if(m->showtab == showtab_always
++         || ((m->showtab == showtab_auto) && (nvis > 1) && 
(m->lt[m->sellt]->arrange == monocle))){
++              m->wh -= th;
++              m->ty = m->toptab ? m->wy : m->wy + m->wh;
++              if ( m->toptab )
++                      m->wy += th;
++      } else {
++              m->ty = -th;
++      }
+ }
+ 
+ void
+@@ -1997,7 +2191,7 @@ wintomon(Window w) {
+       if(w == root && getrootptr(&x, &y))
+               return recttomon(x, y, 1, 1);
+       for(m = mons; m; m = m->next)
+-              if(w == m->barwin)
++              if(w == m->barwin || w == m->tabwin)
+                       return m;
+       if((c = wintoclient(w)))
+               return c->mon;
diff --git a/dwm.suckless.org/patches/dwm-master_2015-03-05_14343e-tab-v2b.diff 
b/dwm.suckless.org/patches/dwm-master_2015-03-05_14343e-tab-v2b.diff
deleted file mode 100644
index fe30f37..0000000
--- a/dwm.suckless.org/patches/dwm-master_2015-03-05_14343e-tab-v2b.diff
+++ /dev/null
@@ -1,506 +0,0 @@
-diff --git a/config.def.h b/config.def.h
-index eaae8f3..9161486 100644
---- a/config.def.h
-+++ b/config.def.h
-@@ -17,6 +17,13 @@ static const unsigned int borderpx  = 1;        /* border 
pixel of windows */
- static const unsigned int snap      = 32;       /* snap pixel */
- static const Bool showbar           = True;     /* False means no bar */
- static const Bool topbar            = True;     /* False means bottom bar */
-+/*   Display modes of the tab bar: never shown, always shown, shown only in */
-+/*   monocle mode in presence of several windows.                           */
-+/*   Modes after showtab_nmodes are disabled                                */
-+enum showtab_modes { showtab_never, showtab_auto, showtab_nmodes, 
showtab_always};
-+static const int showtab            = showtab_auto; /* Default tab bar show 
mode */
-+static const Bool toptab            = False;    /* False means bottom tab bar 
*/
-+
- 
- /* tagging */
- static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
-@@ -34,7 +41,7 @@ static const Rule rules[] = {
- /* layout(s) */
- static const float mfact      = 0.55; /* factor of master area size 
[0.05..0.95] */
- static const int nmaster      = 1;    /* number of clients in master area */
--static const Bool resizehints = True; /* True means respect size hints in 
tiled resizals */
-+static const Bool resizehints = False; /* True means respect size hints in 
tiled resizals */
- 
- static const Layout layouts[] = {
-       /* symbol     arrange function */
-@@ -64,6 +71,7 @@ static Key keys[] = {
-       { MODKEY,                       XK_p,      spawn,          {.v = 
dmenucmd } },
-       { MODKEY|ShiftMask,             XK_Return, spawn,          {.v = 
termcmd } },
-       { MODKEY,                       XK_b,      togglebar,      {0} },
-+      { MODKEY,                       XK_w,      tabmode,        {-1} },
-       { MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
-       { MODKEY,                       XK_k,      focusstack,     {.i = -1 } },
-       { MODKEY,                       XK_i,      incnmaster,     {.i = +1 } },
-@@ -111,5 +119,6 @@ static Button buttons[] = {
-       { ClkTagBar,            0,              Button3,        toggleview,     
{0} },
-       { ClkTagBar,            MODKEY,         Button1,        tag,            
{0} },
-       { ClkTagBar,            MODKEY,         Button3,        toggletag,      
{0} },
-+      { ClkTabBar,            0,              Button1,        focuswin,       
{0} },
- };
- 
-diff --git a/dwm.1 b/dwm.1
-index 6687011..9f5c274 100644
---- a/dwm.1
-+++ b/dwm.1
-@@ -19,14 +19,22 @@ layout applied.
- Windows are grouped by tags. Each window can be tagged with one or multiple
- tags. Selecting certain tags displays all windows with these tags.
- .P
--Each screen contains a small status bar which displays all available tags, the
--layout, the title of the focused window, and the text read from the root 
window
--name property, if the screen is focused. A floating window is indicated with 
an
--empty square and a maximised floating window is indicated with a filled square
--before the windows title.  The selected tags are indicated with a different
--color. The tags of the focused window are indicated with a filled square in 
the
--top left corner.  The tags which are applied to one or more windows are
--indicated with an empty square in the top left corner.
-+Each screen contains two small status bars. 
-+.P
-+One bar displays all available tags, the layout, the title of the focused
-+window, and the text read from the root window name property, if the screen is
-+focused. A floating window is indicated with an empty square and a maximised
-+floating window is indicated with a filled square before the windows title.  
The
-+selected tags are indicated with a different color. The tags of the focused
-+window are indicated with a filled square in the top left corner.  The tags
-+which are applied to one or more windows are indicated with an empty square in
-+the top left corner. 
-+.P
-+Another bar contains a tab for each window of the current view and allows
-+navigation between windows, especially in the monocle mode. The different
-+display modes of this bar are described under the Mod1\-w Keybord command
-+section.  When a single tag is selected, that tag is indicated in the left 
corner
-+of the tab bar.
- .P
- dwm draws a small border around windows to indicate the focus state.
- .SH OPTIONS
-@@ -43,7 +51,8 @@ command.
- .TP
- .B Button1
- click on a tag label to display all windows with that tag, click on the layout
--label toggles between tiled and floating layout.
-+label toggles between tiled and floating layout, click on a window name in the
-+tab bar brings focus to that window.
- .TP
- .B Button3
- click on a tag label adds/removes all windows with that tag to/from the view.
-@@ -104,6 +113,12 @@ Increase master area size.
- .B Mod1\-h
- Decrease master area size.
- .TP
-+.B Mod1\-w
-+Cycle over the tab bar display modes: never displayed, always displayed,
-+displayed only in monocle mode when the view contains than one window (auto
-+mode). Some display modes can be disabled in the configuration, config.h. In
-+the default configuration only "never" and "auto" display modes are enabled.
-+.TP
- .B Mod1\-Return
- Zooms/cycles focused window to/from master area (tiled layouts only).
- .TP
-diff --git a/dwm.c b/dwm.c
-index 169adcb..4ec61fb 100644
---- a/dwm.c
-+++ b/dwm.c
-@@ -64,7 +64,7 @@ enum { NetSupported, NetWMName, NetWMState,
-        NetWMFullscreen, NetActiveWindow, NetWMWindowType,
-        NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
- enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default 
atoms */
--enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
-+enum { ClkTagBar, ClkTabBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
-        ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
- 
- typedef union {
-@@ -111,24 +111,32 @@ typedef struct {
-       void (*arrange)(Monitor *);
- } Layout;
- 
-+#define MAXTABS 50
-+
- struct Monitor {
-       char ltsymbol[16];
-       float mfact;
-       int nmaster;
-       int num;
-       int by;               /* bar geometry */
-+      int ty;               /* tab 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 showtab;
-       Bool topbar;
-+      Bool toptab;
-       Client *clients;
-       Client *sel;
-       Client *stack;
-       Monitor *next;
-       Window barwin;
-+      Window tabwin;
-+      int ntabs;
-+      int tab_widths[MAXTABS];
-       const Layout *lt[2];
- };
- 
-@@ -164,12 +172,15 @@ static void detachstack(Client *c);
- static Monitor *dirtomon(int dir);
- static void drawbar(Monitor *m);
- static void drawbars(void);
-+static void drawtab(Monitor *m);
-+static void drawtabs(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 void focuswin(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);
-@@ -206,6 +217,7 @@ static void setup(void);
- static void showhide(Client *c);
- static void sigchld(int unused);
- static void spawn(const Arg *arg);
-+static void tabmode(const Arg *arg);
- static void tag(const Arg *arg);
- static void tagmon(const Arg *arg);
- static void tile(Monitor *);
-@@ -240,6 +252,7 @@ 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 th = 0;           /* tab bar geometry */
- static int (*xerrorxlib)(Display *, XErrorEvent *);
- static unsigned int numlockmask = 0;
- static void (*handler[LASTEvent]) (XEvent *) = {
-@@ -389,6 +402,9 @@ arrange(Monitor *m) {
- 
- void
- arrangemon(Monitor *m) {
-+      updatebarpos(m);
-+      XMoveResizeWindow(dpy, m->tabwin, m->wx, m->ty, m->ww, th);
-+
-       strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
-       if(m->lt[m->sellt]->arrange)
-               m->lt[m->sellt]->arrange(m);
-@@ -437,14 +453,32 @@ buttonpress(XEvent *e) {
-               else
-                       click = ClkWinTitle;
-       }
-+      if(ev->window == selmon->tabwin) {
-+              i = 0; x = 0;
-+              for(c = selmon->clients; c; c = c->next){
-+                if(!ISVISIBLE(c)) continue;
-+                x += selmon->tab_widths[i];
-+                if (ev->x > x)
-+                  ++i;
-+                else
-+                  break;
-+                if(i >= m->ntabs) break;
-+              }
-+              if(c) {
-+                click = ClkTabBar;
-+                arg.ui = i;
-+              }
-+      }
-       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);
-+                 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)){
-+                buttons[i].func(((click == ClkTagBar || click == ClkTabBar)
-+                                 && buttons[i].arg.i == 0) ? &arg : 
&buttons[i].arg);
-+              }
- }
- 
- void
-@@ -498,6 +532,8 @@ cleanupmon(Monitor *mon) {
-       }
-       XUnmapWindow(dpy, mon->barwin);
-       XDestroyWindow(dpy, mon->barwin);
-+      XUnmapWindow(dpy, mon->tabwin);
-+      XDestroyWindow(dpy, mon->tabwin);
-       free(mon);
- }
- 
-@@ -566,8 +602,11 @@ configurenotify(XEvent *e) {
-               if(updategeom() || dirty) {
-                       drw_resize(drw, sw, bh);
-                       updatebars();
--                      for(m = mons; m; m = m->next)
-+                      //refreshing display of status bar. The tab bar is 
handled by the arrange()
-+                      //method, which is called below
-+                      for(m = mons; m; m = m->next){
-                               XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, 
m->ww, bh);
-+                      }
-                       focus(NULL);
-                       arrange(NULL);
-               }
-@@ -637,7 +676,10 @@ createmon(void) {
-       m->mfact = mfact;
-       m->nmaster = nmaster;
-       m->showbar = showbar;
-+      m->showtab = showtab;
-       m->topbar = topbar;
-+      m->toptab = toptab;
-+      m->ntabs = 0;
-       m->lt[0] = &layouts[0];
-       m->lt[1] = &layouts[1 % LENGTH(layouts)];
-       strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
-@@ -749,6 +791,104 @@ drawbars(void) {
- }
- 
- void
-+drawtabs(void) {
-+      Monitor *m;
-+
-+      for(m = mons; m; m = m->next)
-+              drawtab(m);
-+}
-+
-+static int
-+cmpint(const void *p1, const void *p2) {
-+  /* The actual arguments to this function are "pointers to
-+     pointers to char", but strcmp(3) arguments are "pointers
-+     to char", hence the following cast plus dereference */
-+  return *((int*) p1) > * (int*) p2;
-+}
-+
-+
-+void
-+drawtab(Monitor *m) {
-+      Client *c;
-+      int i;
-+      int itag = -1;
-+      char view_info[50];
-+      int view_info_w = 0;
-+      int sorted_label_widths[MAXTABS];
-+      int tot_width;
-+      int maxsize = bh;
-+      int x = 0;
-+      int w = 0;
-+
-+      //view_info: indicate the tag which is displayed in the view
-+      for(i = 0; i < LENGTH(tags); ++i){
-+        if((selmon->tagset[selmon->seltags] >> i) & 1) {
-+          if(itag >=0){ //more than one tag selected
-+            itag = -1;
-+            break;
-+          }
-+          itag = i;
-+        }
-+      }
-+      if(0 <= itag  && itag < LENGTH(tags)){
-+        snprintf(view_info, sizeof view_info, "[%s]", tags[itag]);
-+      } else {
-+        strncpy(view_info, "[...]", sizeof view_info);
-+      }
-+      view_info[sizeof(view_info) - 1 ] = 0;
-+      view_info_w = TEXTW(view_info);
-+      tot_width = view_info_w;
-+
-+      /* Calculates number of labels and their width */
-+      m->ntabs = 0;
-+      for(c = m->clients; c; c = c->next){
-+        if(!ISVISIBLE(c)) continue;
-+        m->tab_widths[m->ntabs] = TEXTW(c->name);
-+        tot_width += m->tab_widths[m->ntabs];
-+        ++m->ntabs;
-+        if(m->ntabs >= MAXTABS) break;
-+      }
-+
-+      if(tot_width > m->ww){ //not enough space to display the labels, they 
need to be truncated
-+        memcpy(sorted_label_widths, m->tab_widths, sizeof(int) * m->ntabs);
-+        qsort(sorted_label_widths, m->ntabs, sizeof(int), cmpint);
-+        tot_width = view_info_w;
-+        for(i = 0; i < m->ntabs; ++i){
-+          if(tot_width + (m->ntabs - i) * sorted_label_widths[i] > m->ww)
-+            break;
-+          tot_width += sorted_label_widths[i];
-+        }
-+        maxsize = (m->ww - tot_width) / (m->ntabs - i);
-+      } else{
-+        maxsize = m->ww;
-+      }
-+      i = 0;
-+      for(c = m->clients; c; c = c->next){
-+        if(!ISVISIBLE(c)) continue;
-+        if(i >= m->ntabs) break;
-+        if(m->tab_widths[i] >  maxsize) m->tab_widths[i] = maxsize;
-+        w = m->tab_widths[i];
-+        drw_setscheme(drw, (c == m->sel) ? &scheme[SchemeSel] : 
&scheme[SchemeNorm]);
-+        drw_text(drw, x, 0, w, th, c->name, 0);
-+        x += w;
-+        ++i;
-+      }
-+
-+      drw_setscheme(drw, &scheme[SchemeNorm]);
-+
-+      /* cleans interspace between window names and current viewed tag label 
*/
-+      w = m->ww - view_info_w - x;
-+      drw_text(drw, x, 0, w, th, NULL, 0);
-+
-+      /* view info */
-+      x += w;
-+      w = view_info_w;
-+      drw_text(drw, x, 0, w, th, view_info, 0);
-+
-+      drw_map(drw, m->tabwin, 0, 0, m->ww, th);
-+}
-+
-+void
- enternotify(XEvent *e) {
-       Client *c;
-       Monitor *m;
-@@ -772,8 +912,10 @@ expose(XEvent *e) {
-       Monitor *m;
-       XExposeEvent *ev = &e->xexpose;
- 
--      if(ev->count == 0 && (m = wintomon(ev->window)))
-+      if(ev->count == 0 && (m = wintomon(ev->window))){
-               drawbar(m);
-+              drawtab(m);
-+      }
- }
- 
- void
-@@ -800,6 +942,7 @@ focus(Client *c) {
-       }
-       selmon->sel = c;
-       drawbars();
-+      drawtabs();
- }
- 
- void
-@@ -850,6 +993,19 @@ focusstack(const Arg *arg) {
-       }
- }
- 
-+void
-+focuswin(const Arg* arg){
-+  int iwin = arg->i;
-+  Client* c = NULL;
-+  for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
-+    if(ISVISIBLE(c)) --iwin;
-+  };
-+  if(c) {
-+    focus(c);
-+    restack(selmon);
-+  }
-+}
-+
- Atom
- getatomprop(Client *c, Atom prop) {
-       int di;
-@@ -1216,12 +1372,14 @@ propertynotify(XEvent *e) {
-               case XA_WM_HINTS:
-                       updatewmhints(c);
-                       drawbars();
-+                      drawtabs();
-                       break;
-               }
-               if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
-                       updatetitle(c);
-                       if(c == c->mon->sel)
-                               drawbar(c->mon);
-+                      drawtab(c->mon);
-               }
-               if(ev->atom == netatom[NetWMWindowType])
-                       updatewindowtype(c);
-@@ -1329,6 +1487,7 @@ restack(Monitor *m) {
-       XWindowChanges wc;
- 
-       drawbar(m);
-+      drawtab(m);
-       if(!m->sel)
-               return;
-       if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
-@@ -1512,6 +1671,8 @@ setup(void) {
-       if (!drw->fontcount)
-               die("No fonts could be loaded.
");
-       bh = drw->fonts[0]->h + 2;
-+      th = bh;
-+
-       updategeom();
-       /* init atoms */
-       wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
-@@ -1643,6 +1804,16 @@ togglebar(const Arg *arg) {
- }
- 
- void
-+tabmode(const Arg *arg) {
-+      if(arg && arg->i >= 0)
-+              selmon->showtab = arg->ui % showtab_nmodes;
-+      else
-+              selmon->showtab = (selmon->showtab + 1 ) % showtab_nmodes;
-+      arrange(selmon);
-+}
-+
-+
-+void
- togglefloating(const Arg *arg) {
-       if(!selmon->sel)
-               return;
-@@ -1746,20 +1917,43 @@ updatebars(void) {
-                                         
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
-               XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
-               XMapRaised(dpy, m->barwin);
-+              m->tabwin = XCreateWindow(dpy, root, m->wx, m->ty, m->ww, th, 
0, DefaultDepth(dpy, screen),
-+                                        CopyFromParent, DefaultVisual(dpy, 
screen),
-+                                        
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
-+              XDefineCursor(dpy, m->tabwin, cursor[CurNormal]->cursor);
-+              XMapRaised(dpy, m->tabwin);
-       }
- }
- 
- void
- updatebarpos(Monitor *m) {
-+      Client *c;
-+      int nvis = 0;
-+
-       m->wy = m->my;
-       m->wh = m->mh;
-       if(m->showbar) {
-               m->wh -= bh;
-               m->by = m->topbar ? m->wy : m->wy + m->wh;
--              m->wy = m->topbar ? m->wy + bh : m->wy;
--      }
--      else
-+              if ( m->topbar )
-+                      m->wy += bh;
-+      } else {
-               m->by = -bh;
-+      }
-+
-+      for(c = m->clients; c; c = c->next){
-+        if(ISVISIBLE(c)) ++nvis;
-+      }
-+
-+      if(m->showtab == showtab_always
-+         || ((m->showtab == showtab_auto) && (nvis > 1) && 
(m->lt[m->sellt]->arrange == monocle))){
-+              m->wh -= th;
-+              m->ty = m->toptab ? m->wy : m->wy + m->wh;
-+              if ( m->toptab )
-+                      m->wy += th;
-+      } else {
-+              m->ty = -th;
-+      }
- }
- 
- void
-@@ -1999,7 +2193,7 @@ wintomon(Window w) {
-       if(w == root && getrootptr(&x, &y))
-               return recttomon(x, y, 1, 1);
-       for(m = mons; m; m = m->next)
--              if(w == m->barwin)
-+              if(w == m->barwin || w == m->tabwin)
-                       return m;
-       if((c = wintoclient(w)))
-               return c->mon;
diff --git a/dwm.suckless.org/patches/tab.md b/dwm.suckless.org/patches/tab.md
index 57e8871..ea61330 100644
--- a/dwm.suckless.org/patches/tab.md
+++ b/dwm.suckless.org/patches/tab.md
@@ -125,7 +125,7 @@ Download
 
  * Tab patch alone
    * For dwm 6.0: [dwm-6.0-tab-v2b.diff](dwm-6.0-tab-v2b.diff)
-   * For dwm from the git master branch: 
[dwm-master\_2015-03-05\_14343e-tab-v2b.diff](dwm-master\_2015-03-05\_14343e-tab-v2b.diff)
+   * For dwm from the git master branch: 
[dwm-7e1182c-tab.diff](dwm-7e1182c-tab.diff)
 
  * Combined patch of tab and the [pertag](pertag) patch from Jan Christoph 
Ebersbach. 
    * Follow the [link](pertag) for the description of this patch and the 
credits. The possibility to define the default layout per view has been added.


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