feat: applied named scratchpads patch

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 */
+	/* class      instance    title       tags mask     isfloating   monitor    scratch key */
-	{ "Gimp",     NULL,       NULL,       0,            1,           -1 },
+	{ "Gimp",     NULL,       NULL,       0,            1,           -1,        0  },
-	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           -1 },
+	{ "firefox",  NULL,       NULL,       1 << 8,       0,           -1,        0  },
+	{ NULL,       NULL,   "scratchpad",   0,            1,           -1,       's' },
 };
 
 /* layout(s) */
@@ -61,10 +62,14 @@ static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn()
 static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
 static const char *termcmd[]  = { "st", NULL };
 
+/*First arg only serves to match against key in rules*/
+static const char *scratchpadcmd[] = {"s", "st", "-t", "scratchpad", NULL};
+
 static const Key keys[] = {
 	/* modifier                     key        function        argument */
 	{ MODKEY,                       XK_p,      spawn,          {.v = dmenucmd } },
 	{ MODKEY|ShiftMask,             XK_Return, spawn,          {.v = termcmd } },
+	{ MODKEY,                       XK_grave,  togglescratch,  {.v = scratchpadcmd } },
 	{ MODKEY,                       XK_b,      togglebar,      {0} },
 	{ MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
 	{ MODKEY,                       XK_k,      focusstack,     {.i = -1 } },

dwm.c

@@ -92,6 +92,7 @@ struct Client {
 	int bw, oldbw;
 	unsigned int tags;
 	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	char scratchkey;
 	Client *next;
 	Client *snext;
 	Monitor *mon;
@@ -138,6 +139,7 @@ typedef struct {
 	unsigned int tags;
 	int isfloating;
 	int monitor;
+	const char scratchkey;
 } Rule;
 
 /* function declarations */
@@ -205,11 +207,13 @@ static void setup(void);
 static void seturgent(Client *c, int urg);
 static void showhide(Client *c);
 static void spawn(const Arg *arg);
+static void spawnscratch(const Arg *arg);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
 static void tile(Monitor *m);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
+static void togglescratch(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
 static void unfocus(Client *c, int setfocus);
@@ -286,6 +290,7 @@ applyrules(Client *c)
 	/* rule matching */
 	c->isfloating = 0;
 	c->tags = 0;
+	c->scratchkey = 0;
 	XGetClassHint(dpy, c->win, &ch);
 	class    = ch.res_class ? ch.res_class : broken;
 	instance = ch.res_name  ? ch.res_name  : broken;
@@ -298,6 +303,7 @@ applyrules(Client *c)
 		{
 			c->isfloating = r->isfloating;
 			c->tags |= r->tags;
+			c->scratchkey = r->scratchkey;
 			for (m = mons; m && m->num != r->monitor; m = m->next);
 			if (m)
 				c->mon = m;
@@ -307,6 +313,7 @@ applyrules(Client *c)
 		XFree(ch.res_class);
 	if (ch.res_name)
 		XFree(ch.res_name);
+
 	c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
 }
 
@@ -1666,6 +1673,27 @@ spawn(const Arg *arg)
 	}
 }
 
+void spawnscratch(const Arg *arg)
+{
+	struct sigaction sa;
+
+	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)[1], ((char **)arg->v)+1);
+		fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[1]);
+		perror(" failed");
+		exit(EXIT_SUCCESS);
+	}
+}
+
 void
 tag(const Arg *arg)
 {
@@ -1735,6 +1763,28 @@ togglefloating(const Arg *arg)
 	arrange(selmon);
 }
 
+void
+togglescratch(const Arg *arg)
+{
+	Client *c;
+	unsigned int found = 0;
+
+	for (c = selmon->clients; c && !(found = c->scratchkey == ((char**)arg->v)[0][0]); c = c->next);
+	if (found) {
+		c->tags = ISVISIBLE(c) ? 0 : selmon->tagset[selmon->seltags];
+		focus(NULL);
+		arrange(selmon);
+
+		if (ISVISIBLE(c)) {
+			focus(c);
+			restack(selmon);
+		}
+
+	} else{
+		spawnscratch(arg);
+	}
+}
+
 void
 toggletag(const Arg *arg)
 {