commit 6adcf8499245ca8932ca60599c8e7d7665bdf7c1
from: Omar Polo <op@omarpolo.com>
date: Wed Dec 01 17:21:45 2021 UTC

add cd up/down and home

commit - 6d283064a776fdffe98ee440519f0c9d009ab150
commit + 6adcf8499245ca8932ca60599c8e7d7665bdf7c1
blob - e74e564f26df55466b7aa9d65ee2ea3097a59b6a
blob + bad7a6a94c4ece984cc50be49aab94162328b4d6
--- fm.c
+++ fm.c
@@ -1205,9 +1205,62 @@ cmd_jump_bottom(void)
 {
 	if (fm.nfiles)
 		ESEL = fm.nfiles - 1;
+}
+
+static void
+cmd_cd_down(void)
+{
+	if (!fm.nfiles || !S_ISDIR(EMODE(ESEL)))
+		return;
+	if (chdir(ENAME(ESEL)) == -1) {
+		message(RED, "cd: %s: %s", ENAME(ESEL), strerror(errno));
+		return;
+	}
+	strlcat(CWD, ENAME(ESEL), sizeof(CWD));
+	cd(1);
 }
 
 static void
+cmd_cd_up(void)
+{
+	char *dirname, first;
+
+	if (!strcmp(CWD, "/"))
+		return;
+
+	/* dirname(3) basically */
+	dirname = strrchr(CWD, '/');
+	*dirname-- = '\0';
+	dirname = strrchr(CWD, '/') + 1;
+
+	first = dirname[0];
+	dirname[0] = '\0';
+	cd(1);
+	dirname[0] = first;
+	strlcat(dirname, "/", sizeof(dirname));
+	try_to_sel(dirname);
+	dirname[0] = '\0';
+	if (fm.nfiles > HEIGHT)
+		SCROLL = ESEL - HEIGHT / 2;
+}
+
+static void
+cmd_home(void)
+{
+	const char *home;
+
+	if ((home = getenv("HOME")) == NULL) {
+		message(RED, "HOME is not defined!");
+		return;
+	}
+
+	strlcpy(CWD, home, sizeof(CWD));
+	if (*CWD != '\0' && CWD[strlen(CWD) - 1] != '/')
+		strlcat(CWD, "/", sizeof(CWD));
+	cd(1);
+}
+
+static void
 loop(void)
 {
 	int meta, ch, c;
@@ -1221,10 +1274,16 @@ loop(void)
 #define X_QUIT 2
 		int flags;
 	} bindings[] = {
+		{'^',		0,	cmd_cd_up,		X_UPDV},
+		{'h',		0,	cmd_cd_up,		X_UPDV},
+		{'b',		0,	cmd_cd_up,		X_UPDV},
+		{'l',		0,	cmd_cd_down,		X_UPDV},
+		{'f',		0,	cmd_cd_down,		X_UPDV},
 		{'<',		K_META,	cmd_jump_top,		X_UPDV},
 		{'>',		K_META,	cmd_jump_bottom,	X_UPDV},
 		{'?',		0,	cmd_man,		0},
 		{'G',		0,	cmd_jump_bottom,	X_UPDV},
+		{'H',		0,	cmd_home,		X_UPDV},
 		{'J',		0,	cmd_scroll_down,	X_UPDV},
 		{'K',		0,	cmd_scroll_up,		X_UPDV},
 		{'V',		K_CTRL,	cmd_scroll_down,	X_UPDV},