dwm and dwmblocks patch for clickable bar - https://dwm.suckless.org/patches/statuscmd/

dwm-statuscmd-signal-6.2.diff

diff --git a/config.def.h b/config.def.h
index 1c0b587..b67825e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -103,7 +103,9 @@ static Button buttons[] = {
 	{ ClkLtSymbol,          0,              Button1,        setlayout,      {0} },
 	{ ClkLtSymbol,          0,              Button3,        setlayout,      {.v = &layouts[2]} },
 	{ ClkWinTitle,          0,              Button2,        zoom,           {0} },
-	{ ClkStatusText,        0,              Button2,        spawn,          {.v = termcmd } },
+	{ ClkStatusText,        0,              Button1,        sigdwmblocks,   {.i = 1} },
+	{ ClkStatusText,        0,              Button2,        sigdwmblocks,   {.i = 2} },
+	{ ClkStatusText,        0,              Button3,        sigdwmblocks,   {.i = 3} },
 	{ ClkClientWin,         MODKEY,         Button1,        movemouse,      {0} },
 	{ ClkClientWin,         MODKEY,         Button2,        togglefloating, {0} },
 	{ ClkClientWin,         MODKEY,         Button3,        resizemouse,    {0} },
diff --git a/dwm.c b/dwm.c
index 4465af1..c600131 100644
--- a/dwm.c
+++ b/dwm.c
@@ -156,6 +156,7 @@ static void clientmessage(XEvent *e);
 static void configure(Client *c);
 static void configurenotify(XEvent *e);
 static void configurerequest(XEvent *e);
+static void copyvalidchars(char *text, char *rawtext);
 static Monitor *createmon(void);
 static void destroynotify(XEvent *e);
 static void detach(Client *c);
@@ -169,6 +170,7 @@ static void focus(Client *c);
 static void focusin(XEvent *e);
 static void focusmon(const Arg *arg);
 static void focusstack(const Arg *arg);
+static int getdwmblockspid();
 static int getrootptr(int *x, int *y);
 static long getstate(Window w);
 static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
@@ -205,6 +207,7 @@ static void setup(void);
 static void seturgent(Client *c, int urg);
 static void showhide(Client *c);
 static void sigchld(int unused);
+static void sigdwmblocks(const Arg *arg);
 static void spawn(const Arg *arg);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
@@ -237,6 +240,9 @@ static void zoom(const Arg *arg);
 /* variables */
 static const char broken[] = "broken";
 static char stext[256];
+static char rawstext[256];
+static int dwmblockssig;
+pid_t dwmblockspid = 0;
 static int screen;
 static int sw, sh;           /* X display screen geometry width, height */
 static int bh, blw = 0;      /* bar geometry */
@@ -439,9 +445,26 @@ buttonpress(XEvent *e)
 			arg.ui = 1 << i;
 		} else if (ev->x < x + blw)
 			click = ClkLtSymbol;
-		else if (ev->x > selmon->ww - TEXTW(stext))
+		else if (ev->x > (x = selmon->ww - TEXTW(stext) + lrpad)) {
 			click = ClkStatusText;
-		else
+
+			char *text = rawstext;
+			int i = -1;
+			char ch;
+			dwmblockssig = 0;
+			while (text[++i]) {
+				if ((unsigned char)text[i] < ' ') {
+					ch = text[i];
+					text[i] = '\0';
+					x += TEXTW(text) - lrpad;
+					text[i] = ch;
+					text += i+1;
+					i = -1;
+					if (x >= ev->x) break;
+					dwmblockssig = ch;
+				}
+			}
+		} else
 			click = ClkWinTitle;
 	} else if ((c = wintoclient(ev->window))) {
 		focus(c);
@@ -627,6 +650,19 @@ configurerequest(XEvent *e)
 	XSync(dpy, False);
 }
 
+void
+copyvalidchars(char *text, char *rawtext)
+{
+	int i = -1, j = 0;
+
+	while(rawtext[++i]) {
+		if ((unsigned char)rawtext[i] >= ' ') {
+			text[j++] = rawtext[i];
+		}
+	}
+	text[j] = '\0';
+}
+
 Monitor *
 createmon(void)
 {
@@ -871,6 +907,18 @@ getatomprop(Client *c, Atom prop)
 	return atom;
 }
 
+int
+getdwmblockspid()
+{
+	char buf[16];
+	FILE *fp = popen("pidof -s dwmblocks", "r");
+	fgets(buf, sizeof(buf), fp);
+	pid_t pid = strtoul(buf, NULL, 10);
+	pclose(fp);
+	dwmblockspid = pid;
+	return pid != 0 ? 0 : -1;
+}
+
 int
 getrootptr(int *x, int *y)
 {
@@ -1636,6 +1684,23 @@ sigchld(int unused)
 	while (0 < waitpid(-1, NULL, WNOHANG));
 }
 
+void
+sigdwmblocks(const Arg *arg)
+{
+	union sigval sv;
+	sv.sival_int = (dwmblockssig << 8) | arg->i;
+	if (!dwmblockspid)
+		if (getdwmblockspid() == -1)
+			return;
+
+	if (sigqueue(dwmblockspid, SIGUSR1, sv) == -1) {
+		if (errno == ESRCH) {
+			if (!getdwmblockspid())
+				sigqueue(dwmblockspid, SIGUSR1, sv);
+		}
+	}
+}
+
 void
 spawn(const Arg *arg)
 {
@@ -1987,8 +2052,10 @@ updatesizehints(Client *c)
 void
 updatestatus(void)
 {
-	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
+	if (!gettextprop(root, XA_WM_NAME, rawstext, sizeof(rawstext)))
 		strcpy(stext, "dwm-"VERSION);
+	else
+		copyvalidchars(stext, rawstext);
 	drawbar(selmon);
 }
 

dwmblocks-statuscmd-signal.diff

diff --git a/dwmblocks.c b/dwmblocks.c
index 2f3b774..ba7dbb5 100644
--- a/dwmblocks.c
+++ b/dwmblocks.c
@@ -14,6 +14,7 @@ typedef struct {
 	unsigned int signal;
 } Block;
 void sighandler(int num);
+void buttonhandler(int sig, siginfo_t *si, void *ucontext);
 void getcmds(int time);
 #ifndef __OpenBSD__
 void getsigcmds(int signal);
@@ -33,15 +34,32 @@ static int screen;
 static Window root;
 static char statusbar[LENGTH(blocks)][CMDLENGTH] = {0};
 static char statusstr[2][256];
+static char button[] = "\0";
 static int statusContinue = 1;
 static void (*writestatus) () = setroot;
 
 //opens process *cmd and stores output in *output
 void getcmd(const Block *block, char *output)
 {
+	if (block->signal)
+	{
+		output[0] = block->signal;
+		output++;
+	}
 	strcpy(output, block->icon);
 	char *cmd = block->command;
-	FILE *cmdf = popen(cmd,"r");
+	FILE *cmdf;
+	if (*button)
+	{
+		setenv("BUTTON", button, 1);
+		cmdf = popen(cmd,"r");
+		*button = '\0';
+		unsetenv("BUTTON");
+	}
+	else
+	{
+		cmdf = popen(cmd,"r");
+	}
 	if (!cmdf)
 		return;
 	char c;
@@ -79,12 +97,18 @@ void getsigcmds(int signal)
 
 void setupsignals()
 {
+	struct sigaction sa;
 	for(int i = 0; i < LENGTH(blocks); i++)
 	{	  
 		if (blocks[i].signal > 0)
+		{
 			signal(SIGRTMIN+blocks[i].signal, sighandler);
+			sigaddset(&sa.sa_mask, SIGRTMIN+blocks[i].signal); // ignore signal when handling SIGUSR1
+		}
 	}
-
+	sa.sa_sigaction = buttonhandler;
+	sa.sa_flags = SA_SIGINFO;
+	sigaction(SIGUSR1, &sa, NULL);
 }
 #endif
 
@@ -143,6 +167,13 @@ void sighandler(int signum)
 	getsigcmds(signum-SIGRTMIN);
 	writestatus();
 }
+
+void buttonhandler(int sig, siginfo_t *si, void *ucontext)
+{
+	*button = '0' + si->si_value.sival_int & 0xff;
+	getsigcmds(si->si_value.sival_int >> 8);
+	writestatus();
+}
 #endif
 
 void termhandler(int signum)