Add herbe (notification display)

programs/dwm/exitdwm.c

@@ -0,0 +1,87 @@
+# include <stdio.h>
+# include <string.h>
+
+void exitdwm ()
+{
+# if							   \
+	defined S_LOCK				|| \
+	defined S_RESTART_DWM		|| \
+	defined S_OFFSCREEN			|| \
+	defined S_EXIT				|| \
+	defined S_REBOOT			|| \
+	defined S_SHUTDOWN			|| \
+	defined S_LOCK_ICON			|| \
+	defined S_RESTART_DWM_ICON	|| \
+	defined S_OFFSCREEN_ICON	|| \
+	defined S_EXIT_ICON			|| \
+	defined S_REBOOT_ICON		|| \
+	defined S_SHUTDOWN_ICON		|| \
+	defined S_FORMAT			|| \
+	defined S_FORMAT_CLEAR
+# error (conflicting macro names)
+# endif
+
+# define S_LOCK "Lock"
+# define S_RESTART_DWM "restart Dwm"
+# define S_OFFSCREEN "Off-screen"
+# define S_EXIT "Exit"
+# define S_REBOOT "Reboot"
+# define S_SHUTDOWN "Shutdown"
+# define S_LOCK_ICON "\uf023"			// <= FontAwesome icons
+# define S_RESTART_DWM_ICON "\uf01e"
+# define S_OFFSCREEN_ICON "\uf108"
+# define S_EXIT_ICON "\uf2f5"
+# define S_REBOOT_ICON "\uf021"
+# define S_SHUTDOWN_ICON "\uf011"
+
+# define S_FORMAT(ACTION) S_##ACTION##_ICON " " S_##ACTION
+# define S_FORMAT_CLEAR "sed 's/^..//'"
+
+	FILE * exit_menu = popen (
+		"echo \""
+			S_FORMAT (LOCK) "\n"
+			S_FORMAT (RESTART_DWM) "\n"
+			S_FORMAT (OFFSCREEN) "\n"
+			S_FORMAT (EXIT) "\n"
+			S_FORMAT (REBOOT) "\n"
+			S_FORMAT (SHUTDOWN)
+			"\" | dmenu -p exit: | " S_FORMAT_CLEAR
+		,
+		"r"
+	);
+
+	char exit_action [16];
+
+	if (
+		exit_menu == NULL ||
+		fscanf (exit_menu, "%15[a-zA-Z -]", exit_action) == EOF
+	) {
+		fputs ("Error. Failure in exit_dwm.", stderr);
+		goto close_streams;
+	}
+
+	if (strcmp (exit_action, S_LOCK) == 0) system ("slock & sleep .5; xset dpms force off");
+	else if (strcmp (exit_action, S_RESTART_DWM) == 0) quit (& (const Arg) {1});
+	else if (strcmp (exit_action, S_OFFSCREEN) == 0) system ("sleep .5; xset dpms force off");
+	else if (strcmp (exit_action, S_EXIT) == 0) quit (& (const Arg) {0});
+	else if (strcmp (exit_action, S_REBOOT) == 0) system ("systemctl reboot");
+	else if (strcmp (exit_action, S_SHUTDOWN) == 0) system ("systemctl poweroff -i");
+
+close_streams:
+	pclose (exit_menu);
+
+# undef S_LOCK
+# undef S_RESTART_DWM
+# undef S_OFFSCREEN
+# undef S_EXIT
+# undef S_REBOOT
+# undef S_SHUTDOWN
+# undef S_LOCK_ICON
+# undef S_RESTART_DWM_ICON
+# undef S_OFFSCREEN_ICON
+# undef S_EXIT_ICON
+# undef S_REBOOT_ICON
+# undef S_SHUTDOWN_ICON
+# undef S_FORMAT
+# undef S_FORMAT_CLEAR
+}