Add and integrate sdn-open

Originally I thought that not supporting %cd would be an issue,
making this kind of utility unclean.

It turns out the desire to launch xdg-open quickly is stronger.

1 files changed, 14 insertions, 6 deletions

diff --git a/sdn.cpp b/sdn.cpp
index 624047a..c5ea7af 100644
--- a/sdn.cpp
+++ b/sdn.cpp
@@ -1,7 +1,7 @@
 //
 // sdn: simple directory navigator
 //
-// Copyright (c) 2017 - 2024, Přemysl Eric Janouch <p@janouch.name>
+// Copyright (c) 2017 - 2025, Přemysl Eric Janouch <p@janouch.name>
 //
 // Permission to use, copy, modify, and/or distribute this software for any
 // purpose with or without fee is hereby granted.
@@ -430,8 +430,8 @@ enum { ALT = 1 << 24, SYM = 1 << 25 };  // Outside the range of Unicode
 #define CTRL(char) ((char) == '?' ? 0x7f : (char) & 0x1f)
 
 #define ACTIONS(XX) XX(NONE) XX(HELP) XX(QUIT) XX(QUIT_NO_CHDIR) \
-	XX(ENTER) XX(CHOOSE) XX(CHOOSE_FULL) XX(VIEW_RAW) XX(VIEW) XX(EDIT) \
-	XX(SORT_LEFT) XX(SORT_RIGHT) \
+	XX(ENTER) XX(OPEN) XX(CHOOSE) XX(CHOOSE_FULL) \
+	XX(VIEW_RAW) XX(VIEW) XX(EDIT) XX(SORT_LEFT) XX(SORT_RIGHT) \
 	XX(SELECT) XX(DESELECT) XX(SELECT_TOGGLE) XX(SELECT_ABORT) \
 	XX(UP) XX(DOWN) XX(TOP) XX(BOTTOM) XX(HIGH) XX(MIDDLE) XX(LOW) \
 	XX(PAGE_PREVIOUS) XX(PAGE_NEXT) XX(SCROLL_UP) XX(SCROLL_DOWN) XX(CENTER) \
@@ -453,7 +453,7 @@ static const char *g_action_names[] = {ACTIONS(XX)};
 
 static map<wint_t, action> g_normal_actions {
 	{'\r', ACTION_ENTER}, {KEY (ENTER), ACTION_ENTER},
-	{ALT | '\r', ACTION_CHOOSE}, {ALT | KEY (ENTER), ACTION_CHOOSE},
+	{ALT | '\r', ACTION_OPEN}, {ALT | KEY (ENTER), ACTION_OPEN},
 	{'t', ACTION_CHOOSE}, {'T', ACTION_CHOOSE_FULL},
 	{KEY (F (1)), ACTION_HELP}, {'h', ACTION_HELP},
 	{KEY (F (3)), ACTION_VIEW}, {KEY (F (13)), ACTION_VIEW_RAW},
@@ -1056,13 +1056,18 @@ fun run_program (initializer_list<const char *> list, const string &filename) {
 	update ();
 }
 
+fun sdn_open (const string &filename) {
+	run_program ({(const char *) getenv ("SDN_OPENER"), "sdn-open", "xdg-open"},
+		filename);
+}
+
 fun view_raw (const string &filename) {
 	// XXX: we cannot realistically detect that the pager hasn't made a pause
 	// at the end of the file, so we can't ensure all contents have been seen
 	run_program ({(const char *) getenv ("PAGER"), "less", "cat"}, filename);
 }
 
-fun view (const string &filename) {
+fun sdn_view (const string &filename) {
 	run_program ({(const char *) getenv ("SDN_VIEWER"), "sdn-view",
 		(const char *) getenv ("PAGER"), "less", "cat"}, filename);
 }
@@ -1525,12 +1530,15 @@ fun handle (wint_t c) -> bool {
 	case ACTION_ENTER:
 		enter (current);
 		break;
+	case ACTION_OPEN:
+		sdn_open (current.filename);
+		break;
 	case ACTION_VIEW_RAW:
 		// Mimic mc, it does not seem sensible to page directories
 		(is_directory ? change_dir : view_raw) (current.filename);
 		break;
 	case ACTION_VIEW:
-		(is_directory ? change_dir : view) (current.filename);
+		(is_directory ? change_dir : sdn_view) (current.filename);
 		break;
 	case ACTION_EDIT:
 		edit (current.filename);