Hack to support waybar autohide

Small C program to send hide signal to bar. Coordination script which
expects the C program to be compiled at scripts/waybar/toggle

waybar/toggle-visibility.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <ctype.h>
+
+int main(int argc, char*argv[])
+{
+    int pid;
+    if (argc <= 1) {
+	    printf("No PID given\n");
+	    return(1);
+    } else if (argc > 2) {
+	    printf("Too many arguments\n");
+	    return(1);
+    } else {
+	long val;
+    	char *next;
+	val = strtol(argv[1], &next, 10);
+	if ((next == argv[1]) || (*next != '\0')) {
+	    printf("Argument '%s' is not a number\n", argv[1]);
+	    return(1);
+	} else {
+    	    pid = val;
+	}
+    }
+    kill(pid, SIGUSR1);
+    return(0);
+}
+

waybar/toggle.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+ARG=$1
+if [[ $ARG == '' ]]; then
+	ARG="toggle"
+fi
+
+if [[ $ARG == 'toggle' ]]; then
+	if [[ -e '/home/jpm/.config/waybar/.hidden' ]]; then
+		rm '/home/jpm/.config/waybar/.hidden';
+	else
+		touch '/home/jpm/.config/waybar/.hidden';
+	fi
+elif [[ $ARG == 'hide' ]]; then
+	if [[ ! -e '/home/jpm/.config/waybar/.hidden' ]]; then
+		touch '/home/jpm/.config/waybar/.hidden';
+	else
+		echo 'Already hidden. You may need to use the "invert" option if action is reversed';
+		exit;
+	fi
+elif [[ $ARG == 'show' ]]; then
+	if [[ -e '/home/jpm/.config/waybar/.hidden' ]]; then
+		rm '/home/jpm/.config/waybar/.hidden';
+	else
+		echo 'Already shown. You may need to use the "invert" option if action is reversed';
+		exit;
+	fi
+elif [[ $ARG != 'invert' ]]; then
+	echo "Invalid argument";
+fi
+
+/home/jpm/scripts/waybar/toggle `pgrep waybar`