Make toggle dot behaviour persistent

Once set, the default filter is updated.  This means that
toggle dot will also work as expected when noice is executed
as root.

Based on discussion with Ypnose.

1 files changed, 7 insertions, 5 deletions

diff --git a/noice.c b/noice.c
index a588a55..0d5627d 100644
--- a/noice.c
+++ b/noice.c
@@ -733,10 +733,9 @@ nochange:
 			DPRINTF_S(path);
 			goto begin;
 		case SEL_TOGGLEDOT:
-			if (strcmp(fltr, ifilter) != 0)
-				strlcpy(fltr, ifilter, sizeof(fltr));
-			else
-				strlcpy(fltr, ".", sizeof(fltr));
+			showhidden ^= 1;
+			ifilter = showhidden ? "." : "^[^.]";
+			strlcpy(fltr, ifilter, sizeof(fltr));
 			goto begin;
 		case SEL_MTIME:
 			mtimeorder = !mtimeorder;
@@ -795,9 +794,12 @@ main(int argc, char *argv[])
 	}
 
 	if (getuid() == 0)
+		showhidden = 1;
+
+	if (showhidden)
 		ifilter = ".";
 	else
-		ifilter = "^[^.]"; /* Hide dotfiles */
+		ifilter = "^[^.]";
 
 	if (argv[1] != NULL) {
 		ipath = argv[1];