patch: open-selected

config.def.h

@@ -176,6 +176,7 @@ static uint forcemousemod = ShiftMask;
  */
 static MouseShortcut mshortcuts[] = {
 	/* mask                 button   function        argument       release */
+	{ ControlMask,          Button2, selopen,        {.i = 0},      1 },
 	{ XK_ANY_MOD,           Button4, kscrollup,      {.i = 1},		0, /* !alt */ -1 },
 	{ XK_ANY_MOD,           Button5, kscrolldown,    {.i = 1},		0, /* !alt */ -1 },
 	{ XK_ANY_MOD,           Button2, selpaste,       {.i = 0},      1 },

st.c

@@ -1887,6 +1887,16 @@ csihandle(void)
 			               term.c.y+1, term.c.x+1);
 			ttywrite(buf, len, 0);
 			break;
+		case 7:
+			if (strstr(strescseq.args[1], "file://") != strescseq.args[1]) {
+				fprintf(stderr, "erresc: dir %s must have prefix 'file://'\n",
+				        strescseq.args[1]);
+				return;
+			}
+			if (chdir(strescseq.args[1] + 7) != 0) /* +7 to remove prefix */
+				fprintf(stderr, "erresc: invalid directory %s\n",
+				        strescseq.args[1]);
+			return;
 		default:
 			goto unknown;
 		}

x.c

@@ -5,6 +5,7 @@
 #include <locale.h>
 #include <signal.h>
 #include <sys/select.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 #include <libgen.h>
@@ -56,6 +57,7 @@ static void clipcopy(const Arg *);
 static void clippaste(const Arg *);
 static void numlock(const Arg *);
 static void selpaste(const Arg *);
+static void selopen(const Arg *);
 static void zoom(const Arg *);
 static void zoomabs(const Arg *);
 static void zoomreset(const Arg *);
@@ -289,6 +291,20 @@ selpaste(const Arg *dummy)
 			xw.win, CurrentTime);
 }
 
+void
+selopen(const Arg *dummy)
+{
+	pid_t chpid;
+
+	if ((chpid = fork()) == 0) {
+		if (fork() == 0)
+			execlp("xdg-open", "xdg-open", getsel(), NULL);
+		exit(1);
+	}
+	if (chpid > 0)
+		waitpid(chpid, NULL, 0);
+}
+
 void
 numlock(const Arg *dummy)
 {