commit 17f3730a7be21391787379229f0a1e99c4aebf5c
Author: FRIGN <[email protected]>
Date:   Fri Jul 15 13:58:27 2016 +0200

    dwm: update swallow patch

diff --git a/dwm.suckless.org/patches/dwm-6.1-swallowing.diff 
b/dwm.suckless.org/patches/dwm-6.1-swallowing.diff
deleted file mode 100644
index c116080..0000000
--- a/dwm.suckless.org/patches/dwm-6.1-swallowing.diff
+++ /dev/null
@@ -1,377 +0,0 @@
-diff --git a/config.def.h b/config.def.h
-index 7054c06..d1140ff 100644
---- a/config.def.h
-+++ b/config.def.h
-@@ -24,9 +24,10 @@ static const Rule rules[] = {
-        *      WM_CLASS(STRING) = instance, class
-        *      WM_NAME(STRING) = title
-        */
--      /* class      instance    title       tags mask     isfloating   
monitor */
--      { "Gimp",     NULL,       NULL,       0,            1,           -1 },
--      { "Firefox",  NULL,       NULL,       1 << 8,       0,           -1 },
-+      /* class      instance    title       tags mask     isfloating   
isterminal noswallow monitor */
-+      { "Gimp",     NULL,       NULL,       0,            1,           0,     
    0,        -1 },
-+      { "Firefox",  NULL,       NULL,       1 << 8,       0,           0,     
    0,        -1 },
-+      { "st-",      NULL,       NULL,       0,            0,           1,     
    1,        -1 },
- };
- 
- /* layout(s) */
-diff --git a/dwm.c b/dwm.c
-index ff7e096..b50436a 100644
---- a/dwm.c
-+++ b/dwm.c
-@@ -40,6 +40,10 @@
- #include <X11/extensions/Xinerama.h>
- #endif /* XINERAMA */
- #include <X11/Xft/Xft.h>
-+#ifdef SWALLOWING
-+#include <X11/Xlib-xcb.h>
-+#include <xcb/res.h>
-+#endif
- 
- #include "drw.h"
- #include "util.h"
-@@ -92,9 +96,11 @@ struct Client {
-       int basew, baseh, incw, inch, maxw, maxh, minw, minh;
-       int bw, oldbw;
-       unsigned int tags;
--      int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
-+      int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, 
isterminal, noswallow;
-+      pid_t pid;
-       Client *next;
-       Client *snext;
-+      Client *swallowing;
-       Monitor *mon;
-       Window win;
- };
-@@ -138,6 +144,8 @@ typedef struct {
-       const char *title;
-       unsigned int tags;
-       int isfloating;
-+      int isterminal;
-+      int noswallow;
-       int monitor;
- } Rule;
- 
-@@ -170,12 +178,14 @@ static void focus(Client *c);
- static void focusin(XEvent *e);
- static void focusmon(const Arg *arg);
- static void focusstack(const Arg *arg);
-+static pid_t getparentprocess(pid_t p);
- static int getrootptr(int *x, int *y);
- static long getstate(Window w);
- static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
- static void grabbuttons(Client *c, int focused);
- static void grabkeys(void);
- static void incnmaster(const Arg *arg);
-+static int isdescprocess(pid_t p, pid_t c);
- static void keypress(XEvent *e);
- static void killclient(const Arg *arg);
- static void manage(Window w, XWindowAttributes *wa);
-@@ -206,8 +216,10 @@ static void setup(void);
- static void showhide(Client *c);
- static void sigchld(int unused);
- static void spawn(const Arg *arg);
-+static Client *swallowingclient(Window w);
- static void tag(const Arg *arg);
- static void tagmon(const Arg *arg);
-+static Client *termforwin(const Client *c);
- static void tile(Monitor *);
- static void togglebar(const Arg *arg);
- static void togglefloating(const Arg *arg);
-@@ -227,6 +239,7 @@ static void updatewindowtype(Client *c);
- static void updatetitle(Client *c);
- static void updatewmhints(Client *c);
- static void view(const Arg *arg);
-+static pid_t winpid(Window w);
- static Client *wintoclient(Window w);
- static Monitor *wintomon(Window w);
- static int xerror(Display *dpy, XErrorEvent *ee);
-@@ -267,6 +280,10 @@ static Drw *drw;
- static Monitor *mons, *selmon;
- static Window root;
- 
-+#ifdef SWALLOWING
-+static xcb_connection_t *xcon;
-+#endif /* SWALLOWING */
-+
- /* configuration, allows nested code to access above variables */
- #include "config.h"
- 
-@@ -296,6 +313,7 @@ applyrules(Client *c)
-               && (!r->class || strstr(class, r->class))
-               && (!r->instance || strstr(instance, r->instance)))
-               {
-+                      c->isterminal = r->isterminal;
-                       c->isfloating = r->isfloating;
-                       c->tags |= r->tags;
-                       for (m = mons; m && m->num != r->monitor; m = m->next);
-@@ -413,6 +431,46 @@ attachstack(Client *c)
- }
- 
- void
-+swallow(Client *p, Client *c)
-+{
-+      if (c->noswallow || c->isterminal)
-+              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);
-+      arrange(p->mon);
-+      configure(p);
-+      updateclientlist();
-+}
-+
-+void
-+unswallow(Client *c)
-+{
-+      c->win = c->swallowing->win;
-+
-+      free(c->swallowing);
-+      c->swallowing = NULL;
-+
-+      updatetitle(c);
-+      arrange(c->mon);
-+      XMapWindow(dpy, c->win);
-+      XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
-+      configure(c);
-+      setclientstate(c, NormalState);
-+}
-+
-+void
- buttonpress(XEvent *e)
- {
-       unsigned int i, x, click;
-@@ -475,7 +533,7 @@ cleanup(void)
-       selmon->lt[selmon->sellt] = &foo;
-       for (m = mons; m; m = m->next)
-               while (m->stack)
--                      unmanage(m->stack, 0);
-+                      unmanage(m->stack, 0); // XXX - unmanage swallowing 
windows too
-       XUngrabKey(dpy, AnyKey, AnyModifier, root);
-       while (mons)
-               cleanupmon(mons);
-@@ -666,6 +724,9 @@ destroynotify(XEvent *e)
- 
-       if ((c = wintoclient(ev->window)))
-               unmanage(c, 1);
-+
-+      else if ((c = swallowingclient(ev->window)))
-+              unmanage(c->swallowing, 1);
- }
- 
- void
-@@ -1037,12 +1098,13 @@ killclient(const Arg *arg)
- void
- manage(Window w, XWindowAttributes *wa)
- {
--      Client *c, *t = NULL;
-+      Client *c, *t, *term = NULL;
-       Window trans = None;
-       XWindowChanges wc;
- 
-       c = ecalloc(1, sizeof(Client));
-       c->win = w;
-+      c->pid = winpid(w);
-       updatetitle(c);
-       if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
-               c->mon = t->mon;
-@@ -1050,7 +1112,9 @@ manage(Window w, XWindowAttributes *wa)
-       } else {
-               c->mon = selmon;
-               applyrules(c);
-+              term = termforwin(c);
-       }
-+
-       /* geometry */
-       c->x = c->oldx = wa->x;
-       c->y = c->oldy = wa->y;
-@@ -1092,6 +1156,8 @@ manage(Window w, XWindowAttributes *wa)
-       c->mon->sel = c;
-       arrange(c->mon);
-       XMapWindow(dpy, c->win);
-+      if (term)
-+              swallow(term, c);
-       focus(NULL);
- }
- 
-@@ -1763,6 +1829,20 @@ 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;
-+      }
-+
-       /* The server grab construct avoids race conditions. */
-       detach(c);
-       detachstack(c);
-@@ -1778,9 +1858,12 @@ unmanage(Client *c, int destroyed)
-               XUngrabServer(dpy);
-       }
-       free(c);
--      focus(NULL);
--      updateclientlist();
--      arrange(m);
-+
-+      if (!s) {
-+              arrange(m);
-+              focus(NULL);
-+              updateclientlist();
-+      }
- }
- 
- void
-@@ -2045,16 +2128,118 @@ view(const Arg *arg)
-       arrange(selmon);
- }
- 
-+pid_t
-+winpid(Window w)
-+{
-+      pid_t result = 0;
-+
-+#ifdef SWALLOWING
-+      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);
-+#endif /* SWALLOWING */
-+
-+      if (result == (pid_t)-1)
-+              result = 0;
-+      return result;
-+}
-+
-+pid_t
-+getparentprocess(pid_t p)
-+{
-+      unsigned int v = 0;
-+
-+#ifdef __linux__
-+      FILE *f;
-+      char buf[256];
-+      snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
-+
-+      if (!(f = fopen(buf, "r")))
-+              return 0;
-+
-+      fscanf(f, "%*u %*s %*c %u", &v);
-+      fclose(f);
-+#endif /* __linux__ */
-+
-+      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)
- {
-       Client *c;
-       Monitor *m;
- 
--      for (m = mons; m; m = m->next)
--              for (c = m->clients; c; c = c->next)
-+      for (m = mons; m; m = m->next) {
-+              for (c = m->clients; c; c = c->next) {
-                       if (c->win == w)
-                               return c;
-+              }
-+      }
-+
-       return NULL;
- }
- 
-@@ -2136,6 +2321,10 @@ main(int argc, char *argv[])
-               fputs("warning: no locale support
", stderr);
-       if (!(dpy = XOpenDisplay(NULL)))
-               die("dwm: cannot open display
");
-+#ifdef SWALLOWING
-+      if (!(xcon = XGetXCBConnection(dpy)))
-+              die("dwm: cannot get xcb connection
");
-+#endif
-       checkotherwm();
-       setup();
-       scan();
diff --git a/dwm.suckless.org/patches/dwm-swallow-20160715-56a31dc.diff 
b/dwm.suckless.org/patches/dwm-swallow-20160715-56a31dc.diff
new file mode 100644
index 0000000..36fa090
--- /dev/null
+++ b/dwm.suckless.org/patches/dwm-swallow-20160715-56a31dc.diff
@@ -0,0 +1,375 @@
+diff --git a/config.def.h b/config.def.h
+index fd77a07..e6b96c9 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -26,9 +26,10 @@ static const Rule rules[] = {
+        *      WM_CLASS(STRING) = instance, class
+        *      WM_NAME(STRING) = title
+        */
+-      /* class      instance    title       tags mask     isfloating   
monitor */
+-      { "Gimp",     NULL,       NULL,       0,            1,           -1 },
+-      { "Firefox",  NULL,       NULL,       1 << 8,       0,           -1 },
++      /* class      instance    title       tags mask     isfloating   
isterminal noswallow monitor */
++      { "Gimp",     NULL,       NULL,       0,            1,           0,     
    0,        -1 },
++      { "Firefox",  NULL,       NULL,       1 << 8,       0,           0,     
    0,        -1 },
++      { "st-",      NULL,       NULL,       0,            0,           1,     
    1,        -1 },
+ };
+ 
+ /* layout(s) */
+diff --git a/dwm.c b/dwm.c
+index b2bc9bd..730061a 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -40,6 +40,10 @@
+ #include <X11/extensions/Xinerama.h>
+ #endif /* XINERAMA */
+ #include <X11/Xft/Xft.h>
++#ifdef SWALLOWING
++#include <X11/Xlib-xcb.h>
++#include <xcb/res.h>
++#endif
+ 
+ #include "drw.h"
+ #include "util.h"
+@@ -93,9 +97,11 @@ struct Client {
+       int basew, baseh, incw, inch, maxw, maxh, minw, minh;
+       int bw, oldbw;
+       unsigned int tags;
+-      int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
++      int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, 
isterminal, noswallow;
++      pid_t pid;
+       Client *next;
+       Client *snext;
++      Client *swallowing;
+       Monitor *mon;
+       Window win;
+ };
+@@ -139,6 +145,8 @@ typedef struct {
+       const char *title;
+       unsigned int tags;
+       int isfloating;
++      int isterminal;
++      int noswallow;
+       int monitor;
+ } Rule;
+ 
+@@ -171,12 +179,14 @@ static void focus(Client *c);
+ static void focusin(XEvent *e);
+ static void focusmon(const Arg *arg);
+ static void focusstack(const Arg *arg);
++static pid_t getparentprocess(pid_t p);
+ static int getrootptr(int *x, int *y);
+ static long getstate(Window w);
+ static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
+ static void grabbuttons(Client *c, int focused);
+ static void grabkeys(void);
+ static void incnmaster(const Arg *arg);
++static int isdescprocess(pid_t p, pid_t c);
+ static void keypress(XEvent *e);
+ static void killclient(const Arg *arg);
+ static void manage(Window w, XWindowAttributes *wa);
+@@ -207,8 +217,10 @@ static void setup(void);
+ static void showhide(Client *c);
+ static void sigchld(int unused);
+ static void spawn(const Arg *arg);
++static Client *swallowingclient(Window w);
+ static void tag(const Arg *arg);
+ static void tagmon(const Arg *arg);
++static Client *termforwin(const Client *c);
+ static void tile(Monitor *);
+ static void togglebar(const Arg *arg);
+ static void togglefloating(const Arg *arg);
+@@ -228,6 +240,7 @@ static void updatewindowtype(Client *c);
+ static void updatetitle(Client *c);
+ static void updatewmhints(Client *c);
+ static void view(const Arg *arg);
++static pid_t winpid(Window w);
+ static Client *wintoclient(Window w);
+ static Monitor *wintomon(Window w);
+ static int xerror(Display *dpy, XErrorEvent *ee);
+@@ -269,6 +282,10 @@ static Drw *drw;
+ static Monitor *mons, *selmon;
+ static Window root;
+ 
++#ifdef SWALLOWING
++static xcb_connection_t *xcon;
++#endif /* SWALLOWING */
++
+ /* configuration, allows nested code to access above variables */
+ #include "config.h"
+ 
+@@ -298,6 +315,7 @@ applyrules(Client *c)
+               && (!r->class || strstr(class, r->class))
+               && (!r->instance || strstr(instance, r->instance)))
+               {
++                      c->isterminal = r->isterminal;
+                       c->isfloating = r->isfloating;
+                       c->tags |= r->tags;
+                       for (m = mons; m && m->num != r->monitor; m = m->next);
+@@ -415,6 +433,46 @@ attachstack(Client *c)
+ }
+ 
+ void
++swallow(Client *p, Client *c)
++{
++      if (c->noswallow || c->isterminal)
++              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);
++      arrange(p->mon);
++      configure(p);
++      updateclientlist();
++}
++
++void
++unswallow(Client *c)
++{
++      c->win = c->swallowing->win;
++
++      free(c->swallowing);
++      c->swallowing = NULL;
++
++      updatetitle(c);
++      arrange(c->mon);
++      XMapWindow(dpy, c->win);
++      XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
++      configure(c);
++      setclientstate(c, NormalState);
++}
++
++void
+ buttonpress(XEvent *e)
+ {
+       unsigned int i, x, click;
+@@ -477,7 +535,7 @@ cleanup(void)
+       selmon->lt[selmon->sellt] = &foo;
+       for (m = mons; m; m = m->next)
+               while (m->stack)
+-                      unmanage(m->stack, 0);
++                      unmanage(m->stack, 0); // XXX - unmanage swallowing 
windows too
+       XUngrabKey(dpy, AnyKey, AnyModifier, root);
+       while (mons)
+               cleanupmon(mons);
+@@ -665,6 +723,9 @@ destroynotify(XEvent *e)
+ 
+       if ((c = wintoclient(ev->window)))
+               unmanage(c, 1);
++
++      else if ((c = swallowingclient(ev->window)))
++              unmanage(c->swallowing, 1);
+ }
+ 
+ void
+@@ -1034,12 +1095,13 @@ 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;
+@@ -1054,6 +1116,7 @@ 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)
+@@ -1090,6 +1153,8 @@ manage(Window w, XWindowAttributes *wa)
+       c->mon->sel = c;
+       arrange(c->mon);
+       XMapWindow(dpy, c->win);
++      if (term)
++              swallow(term, c);
+       focus(NULL);
+ }
+ 
+@@ -1757,6 +1822,20 @@ 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;
++      }
++
+       /* The server grab construct avoids race conditions. */
+       detach(c);
+       detachstack(c);
+@@ -1772,9 +1851,12 @@ unmanage(Client *c, int destroyed)
+               XUngrabServer(dpy);
+       }
+       free(c);
+-      focus(NULL);
+-      updateclientlist();
+-      arrange(m);
++
++      if (!s) {
++              arrange(m);
++              focus(NULL);
++              updateclientlist();
++      }
+ }
+ 
+ void
+@@ -2039,16 +2121,118 @@ view(const Arg *arg)
+       arrange(selmon);
+ }
+ 
++pid_t
++winpid(Window w)
++{
++      pid_t result = 0;
++
++#ifdef SWALLOWING
++      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);
++#endif /* SWALLOWING */
++
++      if (result == (pid_t)-1)
++              result = 0;
++      return result;
++}
++
++pid_t
++getparentprocess(pid_t p)
++{
++      unsigned int v = 0;
++
++#ifdef __linux__
++      FILE *f;
++      char buf[256];
++      snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
++
++      if (!(f = fopen(buf, "r")))
++              return 0;
++
++      fscanf(f, "%*u %*s %*c %u", &v);
++      fclose(f);
++#endif /* __linux__ */
++
++      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)
+ {
+       Client *c;
+       Monitor *m;
+ 
+-      for (m = mons; m; m = m->next)
+-              for (c = m->clients; c; c = c->next)
++      for (m = mons; m; m = m->next) {
++              for (c = m->clients; c; c = c->next) {
+                       if (c->win == w)
+                               return c;
++              }
++      }
++
+       return NULL;
+ }
+ 
+@@ -2130,6 +2314,10 @@ main(int argc, char *argv[])
+               fputs("warning: no locale support
", stderr);
+       if (!(dpy = XOpenDisplay(NULL)))
+               die("dwm: cannot open display
");
++#ifdef SWALLOWING
++      if (!(xcon = XGetXCBConnection(dpy)))
++              die("dwm: cannot get xcb connection
");
++#endif
+       checkotherwm();
+       setup();
+       scan();
diff --git a/dwm.suckless.org/patches/dwm-swallow-6.1.diff 
b/dwm.suckless.org/patches/dwm-swallow-6.1.diff
new file mode 100644
index 0000000..163d8b7
--- /dev/null
+++ b/dwm.suckless.org/patches/dwm-swallow-6.1.diff
@@ -0,0 +1,377 @@
+diff --git a/config.def.h b/config.def.h
+index 7054c06..d1140ff 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -24,9 +24,10 @@ static const Rule rules[] = {
+        *      WM_CLASS(STRING) = instance, class
+        *      WM_NAME(STRING) = title
+        */
+-      /* class      instance    title       tags mask     isfloating   
monitor */
+-      { "Gimp",     NULL,       NULL,       0,            1,           -1 },
+-      { "Firefox",  NULL,       NULL,       1 << 8,       0,           -1 },
++      /* class      instance    title       tags mask     isfloating   
isterminal noswallow monitor */
++      { "Gimp",     NULL,       NULL,       0,            1,           0,     
    0,        -1 },
++      { "Firefox",  NULL,       NULL,       1 << 8,       0,           0,     
    0,        -1 },
++      { "st-",      NULL,       NULL,       0,            0,           1,     
    1,        -1 },
+ };
+ 
+ /* layout(s) */
+diff --git a/dwm.c b/dwm.c
+index 0362114..273cc32 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -40,6 +40,10 @@
+ #include <X11/extensions/Xinerama.h>
+ #endif /* XINERAMA */
+ #include <X11/Xft/Xft.h>
++#ifdef SWALLOWING
++#include <X11/Xlib-xcb.h>
++#include <xcb/res.h>
++#endif
+ 
+ #include "drw.h"
+ #include "util.h"
+@@ -92,9 +96,11 @@ struct Client {
+       int basew, baseh, incw, inch, maxw, maxh, minw, minh;
+       int bw, oldbw;
+       unsigned int tags;
+-      int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
++      int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, 
isterminal, noswallow;
++      pid_t pid;
+       Client *next;
+       Client *snext;
++      Client *swallowing;
+       Monitor *mon;
+       Window win;
+ };
+@@ -138,6 +144,8 @@ typedef struct {
+       const char *title;
+       unsigned int tags;
+       int isfloating;
++      int isterminal;
++      int noswallow;
+       int monitor;
+ } Rule;
+ 
+@@ -170,12 +178,14 @@ static void focus(Client *c);
+ static void focusin(XEvent *e);
+ static void focusmon(const Arg *arg);
+ static void focusstack(const Arg *arg);
++static pid_t getparentprocess(pid_t p);
+ static int getrootptr(int *x, int *y);
+ static long getstate(Window w);
+ static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
+ static void grabbuttons(Client *c, int focused);
+ static void grabkeys(void);
+ static void incnmaster(const Arg *arg);
++static int isdescprocess(pid_t p, pid_t c);
+ static void keypress(XEvent *e);
+ static void killclient(const Arg *arg);
+ static void manage(Window w, XWindowAttributes *wa);
+@@ -206,8 +216,10 @@ static void setup(void);
+ static void showhide(Client *c);
+ static void sigchld(int unused);
+ static void spawn(const Arg *arg);
++static Client *swallowingclient(Window w);
+ static void tag(const Arg *arg);
+ static void tagmon(const Arg *arg);
++static Client *termforwin(const Client *c);
+ static void tile(Monitor *);
+ static void togglebar(const Arg *arg);
+ static void togglefloating(const Arg *arg);
+@@ -227,6 +239,7 @@ static void updatewindowtype(Client *c);
+ static void updatetitle(Client *c);
+ static void updatewmhints(Client *c);
+ static void view(const Arg *arg);
++static pid_t winpid(Window w);
+ static Client *wintoclient(Window w);
+ static Monitor *wintomon(Window w);
+ static int xerror(Display *dpy, XErrorEvent *ee);
+@@ -267,6 +280,10 @@ static Drw *drw;
+ static Monitor *mons, *selmon;
+ static Window root;
+ 
++#ifdef SWALLOWING
++static xcb_connection_t *xcon;
++#endif /* SWALLOWING */
++
+ /* configuration, allows nested code to access above variables */
+ #include "config.h"
+ 
+@@ -296,6 +313,7 @@ applyrules(Client *c)
+               && (!r->class || strstr(class, r->class))
+               && (!r->instance || strstr(instance, r->instance)))
+               {
++                      c->isterminal = r->isterminal;
+                       c->isfloating = r->isfloating;
+                       c->tags |= r->tags;
+                       for (m = mons; m && m->num != r->monitor; m = m->next);
+@@ -413,6 +431,46 @@ attachstack(Client *c)
+ }
+ 
+ void
++swallow(Client *p, Client *c)
++{
++      if (c->noswallow || c->isterminal)
++              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);
++      arrange(p->mon);
++      configure(p);
++      updateclientlist();
++}
++
++void
++unswallow(Client *c)
++{
++      c->win = c->swallowing->win;
++
++      free(c->swallowing);
++      c->swallowing = NULL;
++
++      updatetitle(c);
++      arrange(c->mon);
++      XMapWindow(dpy, c->win);
++      XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
++      configure(c);
++      setclientstate(c, NormalState);
++}
++
++void
+ buttonpress(XEvent *e)
+ {
+       unsigned int i, x, click;
+@@ -475,7 +533,7 @@ cleanup(void)
+       selmon->lt[selmon->sellt] = &foo;
+       for (m = mons; m; m = m->next)
+               while (m->stack)
+-                      unmanage(m->stack, 0);
++                      unmanage(m->stack, 0); // XXX - unmanage swallowing 
windows too
+       XUngrabKey(dpy, AnyKey, AnyModifier, root);
+       while (mons)
+               cleanupmon(mons);
+@@ -661,6 +719,9 @@ destroynotify(XEvent *e)
+ 
+       if ((c = wintoclient(ev->window)))
+               unmanage(c, 1);
++
++      else if ((c = swallowingclient(ev->window)))
++              unmanage(c->swallowing, 1);
+ }
+ 
+ void
+@@ -1032,12 +1093,13 @@ killclient(const Arg *arg)
+ void
+ manage(Window w, XWindowAttributes *wa)
+ {
+-      Client *c, *t = NULL;
++      Client *c, *t, *term = NULL;
+       Window trans = None;
+       XWindowChanges wc;
+ 
+       c = ecalloc(1, sizeof(Client));
+       c->win = w;
++      c->pid = winpid(w);
+       updatetitle(c);
+       if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
+               c->mon = t->mon;
+@@ -1045,7 +1107,9 @@ manage(Window w, XWindowAttributes *wa)
+       } else {
+               c->mon = selmon;
+               applyrules(c);
++              term = termforwin(c);
+       }
++
+       /* geometry */
+       c->x = c->oldx = wa->x;
+       c->y = c->oldy = wa->y;
+@@ -1087,6 +1151,8 @@ manage(Window w, XWindowAttributes *wa)
+       c->mon->sel = c;
+       arrange(c->mon);
+       XMapWindow(dpy, c->win);
++      if (term)
++              swallow(term, c);
+       focus(NULL);
+ }
+ 
+@@ -1758,6 +1824,20 @@ 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;
++      }
++
+       /* The server grab construct avoids race conditions. */
+       detach(c);
+       detachstack(c);
+@@ -1773,9 +1853,12 @@ unmanage(Client *c, int destroyed)
+               XUngrabServer(dpy);
+       }
+       free(c);
+-      focus(NULL);
+-      updateclientlist();
+-      arrange(m);
++
++      if (!s) {
++              arrange(m);
++              focus(NULL);
++              updateclientlist();
++      }
+ }
+ 
+ void
+@@ -2040,16 +2123,118 @@ view(const Arg *arg)
+       arrange(selmon);
+ }
+ 
++pid_t
++winpid(Window w)
++{
++      pid_t result = 0;
++
++#ifdef SWALLOWING
++      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);
++#endif /* SWALLOWING */
++
++      if (result == (pid_t)-1)
++              result = 0;
++      return result;
++}
++
++pid_t
++getparentprocess(pid_t p)
++{
++      unsigned int v = 0;
++
++#ifdef __linux__
++      FILE *f;
++      char buf[256];
++      snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
++
++      if (!(f = fopen(buf, "r")))
++              return 0;
++
++      fscanf(f, "%*u %*s %*c %u", &v);
++      fclose(f);
++#endif /* __linux__ */
++
++      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)
+ {
+       Client *c;
+       Monitor *m;
+ 
+-      for (m = mons; m; m = m->next)
+-              for (c = m->clients; c; c = c->next)
++      for (m = mons; m; m = m->next) {
++              for (c = m->clients; c; c = c->next) {
+                       if (c->win == w)
+                               return c;
++              }
++      }
++
+       return NULL;
+ }
+ 
+@@ -2131,6 +2316,10 @@ main(int argc, char *argv[])
+               fputs("warning: no locale support
", stderr);
+       if (!(dpy = XOpenDisplay(NULL)))
+               die("dwm: cannot open display
");
++#ifdef SWALLOWING
++      if (!(xcon = XGetXCBConnection(dpy)))
++              die("dwm: cannot get xcb connection
");
++#endif
+       checkotherwm();
+       setup();
+       scan();
diff --git a/dwm.suckless.org/patches/swallow.md 
b/dwm.suckless.org/patches/swallow.md
index fef41e3..ed64b86 100644
--- a/dwm.suckless.org/patches/swallow.md
+++ b/dwm.suckless.org/patches/swallow.md
@@ -1,34 +1,53 @@
-# terminals swallow windows
+swallow
+=======
 
-## Description
+Description
+-----------
 
 This patch adds "window swallowing" to dwm, a la `rio` from Plan 9.
 
-Windows that are marked with the `isterminal` flag (settable using rules in 
`config.h`) will swallow a window opened by any descendant processes.
-For example, if you open a terminal and then in that terminal type `xclock`, 
the `xclock` window takes the place of that terminal window.
-Closing the `xclock` window restores the terminal window in the current 
position.
+Windows that are marked with the `isterminal` flag (settable using rules in
+`config.h`) will swallow a window opened by any descendant processes.
+For example, if you open a terminal and then in that terminal type `xclock`,
+the `xclock` window takes the place of that terminal window.
+Closing the `xclock` window restores the terminal window in the current
+position.
 
-This patch is useful for users who tend to do most or all of their work from 
the command line, but sometimes need to use a graphical program.
+This patch is useful for users who tend to do most or all of their work
+from the command line, but sometimes need to use a graphical program.
 This patch avoids cluttering the desktop with unused terminals.
 
-(`dmenu` could be used, but if you are deep in a directory hierarchy and want 
to, say, view a PDF, cutting and pasting the path to `dmenu` takes longer than 
just running `mupdf`.)
+(`dmenu` could be used, but if you are deep in a directory hierarchy and
+want to, say, view a PDF, cutting and pasting the path to `dmenu` takes
+longer than just running `mupdf`.)
 
-## Download
-Please see [deadpixi-dwm](https://github.com/deadpixi/deadpixi-dwm) for the 
development site.
+Download
+--------
 
-Patches are also available here:
+ * [dwm-swallow-6.1.diff](dwm-swallow-6.1.diff)
+ * [dwm-swallow-20160715-56a31dc.diff](dwm-swallow-20160715-56a31dc.diff)
 
- * [dwm-6.1-swallowing.diff](dwm-6.1-swallowing.diff) (9319b) - 2016/1/27
+Notes
+-----
 
-## Note
-The window swallowing functionality requires `dwm` to walk the process tree, 
which is an inherently OS-specific task.
-Only Linux is supported at this time.
-Please contact the author ([email protected]) if you would like to help 
expand the list of supported operating systems.
+The window swallowing functionality requires `dwm` to walk the process tree,
+which is an inherently OS-specific task. Only Linux is supported at this time.
+Please contact the author ([email protected]) if you would like to help
+expand the list of supported operating systems.
 
-Also please note that building with this patch requires `libxcb`, 
`Xlib-libxcb`, and `xcb-res`.
-This is due to the use of the latest revision of the X Resource Extension, 
which is unsupported in vanilla Xlib.
+Also please note that building with this patch requires `libxcb`,
+`Xlib-libxcb`, and `xcb-res`.
+This is due to the use of the latest revision of the X Resource Extension,
+which is unsupported in vanilla Xlib.
 
-Only terminals created by local processes can swallow windows, and only 
windows created by local processes can be swallowed.
+Only terminals created by local processes can swallow windows, and only
+windows created by local processes can be swallowed.
 
-## Author
- * Rob King <[email protected]>
+Please see [deadpixi-dwm](https://github.com/deadpixi/deadpixi-dwm) for the
+development site.
+
+Authors
+-------
+
+ * Rob King - <[email protected]>
+ * Laslo Hunhold - <[email protected]> (git port)


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