GUI app launcher mode with 'o'.

Removed file manager and desktop search keys.
Both can be launched with launcher key.

README.md

@@ -91,7 +91,6 @@ Have fun with it! Missing a feature? Want to contribute? Head to the rolling [To
   - Numeric order (1, 2, ... 10, 11, ...) for numeric names
 - Search
   - Superfast directory content filtering with *search-as-you-type*
-  - Desktop search (gnome-search-tool, catfish) integration
 - Mimes
   - Open with desktop opener (default) or specify a custom app
   - Create, list and extract archives (needs atool/patool)
@@ -108,7 +107,7 @@ Have fun with it! Missing a feature? Want to contribute? Head to the rolling [To
   - Copy absolute file paths with quotes
   - Change directory at exit (*easy* shell integration)
   - Open any file in EDITOR (fallback vi) or PAGER (fallback less)
-  - Open current directory in a custom GUI file manager
+  - GUI app launcher
   - Terminal screensaver/locker integration
 - Unicode support
 - Highly optimized code, minimal resource usage
@@ -250,8 +249,7 @@ optional args:
              ^L  Redraw, clear prompt
             Esc  Exit prompt
               L  Lock terminal
-              o  Open DE filemanager
-             ^/  Open DE search app
+              o  Launch GUI app
               ?  Help, settings
           Q, ^G  Quit and cd
           q, ^X  Quit
@@ -304,7 +302,6 @@ The following indicators are used in the detail view:
 | --- | --- |
 | xdg-open (Linux), open(1) (OS X), cygstart (Cygwin) | desktop opener |
 | mediainfo, exiftool | multimedia file details |
-| gnome-search-tool, catfish | desktop search utility |
 | atool, patool ([integration](#integrate-patool)) | create, list and extract archives |
 | vidir from moreutils | batch rename, move, delete dir entries |
 | vlock (Linux), bashlock (OS X), lock(1) (BSD) | terminal locker |
@@ -315,12 +312,8 @@ The following indicators are used in the detail view:
 - To edit all text files in EDITOR (preferably CLI, fallback vi):
 
       export NNN_USE_EDITOR=1
-- To enable the desktop file manager key, set `NNN_DE_FILE_MANAGER`. E.g.:
 
-      export NNN_DE_FILE_MANAGER=thunar
-      export NNN_DE_FILE_MANAGER=nautilus
-
-Customizable script [nlay](https://github.com/jarun/nnn/wiki/all-about-nlay) is used to run desktop search utility and terminal locker.
+Customizable script [nlay](https://github.com/jarun/nnn/wiki/all-about-nlay) is used to run terminal locker.
 
 #### Help
 

nnn.1

@@ -57,8 +57,6 @@ Change to initial directory
 Change to the last visited directory
 .It Ic /
 Change filter (more information below)
-.It Ic ^/
-Search directory in desktop search tool
 .It Ic \&.
 Toggle show hidden . (dot) files
 .It Ic ^B
@@ -95,8 +93,6 @@ Spawn SHELL in PWD (fallback sh)
 Run a custom script
 .It Ic e
 Open current entry in EDITOR (fallback vi)
-.It Ic o
-Open directory in NNN_DE_FILE_MANAGER
 .It Ic p
 Open current entry in PAGER (fallback less)
 .It Ic f
@@ -119,6 +115,8 @@ Force a redraw, clear prompt
 Exit prompt
 .It Ic L
 Lock terminal (Linux only)
+.It Ic o
+Launch a GUI application
 .It Ic \&?
 Toggle help and settings screen
 .It Ic Q, ^G
@@ -240,12 +238,6 @@ files.
     export NNN_USE_EDITOR=1
 .Ed
 .Pp
-\fBNNN_DE_FILE_MANAGER:\fR set to a desktop file manager to open the current
-directory with. E.g.:
-.Bd -literal
-    export NNN_DE_FILE_MANAGER=thunar
-.Ed
-.Pp
 \fBNNN_IDLE_TIMEOUT:\fR set idle timeout (in seconds) to invoke terminal
 screensaver.
 .Pp

nnn.c

@@ -269,7 +269,6 @@ static uint idletimeout, copybufpos, copybuflen;
 static char *player;
 static char *copier;
 static char *editor;
-static char *dmanager; /* desktop file manager */
 static blkcnt_t ent_blocks;
 static blkcnt_t dir_blocks;
 static ulong num_files;
@@ -1972,8 +1971,7 @@ static int show_help(char *path)
 	    "d^L  Redraw, clear prompt\n"
 	   "cEsc  Exit prompt\n"
 	     "eL  Lock terminal\n"
-	     "eo  Open DE filemanager\n"
-	    "d^/  Open DE search app\n"
+	     "eo  Launch GUI app\n"
 	     "e?  Help, settings\n"
 	 "aQ, ^G  Quit and cd\n"
 	 "aq, ^X  Quit\n\n"};
@@ -2010,8 +2008,6 @@ static int show_help(char *path)
 
 	if (editor)
 		dprintf(fd, "NNN_USE_EDITOR: %s\n", editor);
-	if (dmanager)
-		dprintf(fd, "NNN_DE_FILE_MANAGER: %s\n", dmanager);
 	if (idletimeout)
 		dprintf(fd, "NNN_IDLE_TIMEOUT: %d secs\n", idletimeout);
 	if (copier)
@@ -2759,9 +2755,6 @@ nochange:
 				goto begin;
 			}
 			goto nochange;
-		case SEL_SEARCH:
-			spawn(player, path, "search", NULL, F_NORMAL);
-			break;
 		case SEL_TOGGLEDOT:
 			cfg.showhidden ^= 1;
 			initfilter(cfg.showhidden, &ifilter);
@@ -2828,14 +2821,6 @@ nochange:
 				goto begin;
 			}
 			break;
-		case SEL_DFB:
-			if (!dmanager) {
-				printmsg("set NNN_DE_FILE_MANAGER");
-				goto nochange;
-			}
-
-			spawn(dmanager, path, NULL, path, F_NOWAIT | F_NOTRACE);
-			break;
 		case SEL_FSIZE:
 			cfg.sizeorder ^= 1;
 			cfg.mtimeorder = 0;
@@ -2984,9 +2969,12 @@ nochange:
 		case SEL_ARCHIVE:
 			if (!ndents)
 				break; // fallthrough
+		case SEL_LAUNCH: // fallthrough
 		case SEL_NEW:
 			if (sel == SEL_OPEN)
 				tmp = xreadline(NULL, "open with: ");
+			else if (sel == SEL_LAUNCH)
+				tmp = xreadline(NULL, "launch: ");
 			else if (sel == SEL_ARCHIVE)
 				tmp = xreadline(dents[cur].name, "name: ");
 			else
@@ -3016,6 +3004,11 @@ nochange:
 				continue;
 			}
 
+			if (sel == SEL_LAUNCH) {
+				spawn(tmp, NULL, NULL, path, F_NOWAIT | F_NOTRACE);
+				break;
+			}
+
 			if (sel == SEL_ARCHIVE) {
 				/* newpath is used as temporary buffer */
 				if (!get_output(newpath, PATH_MAX, "which", utils[APACK], NULL, 0)) {
@@ -3345,9 +3338,6 @@ int main(int argc, char *argv[])
 	if (!player)
 		player = utils[NLAY];
 
-	/* Get the desktop file manager, if set */
-	dmanager = getenv("NNN_DE_FILE_MANAGER");
-
 	/* Get screensaver wait time, if set; copier used as tmp var */
 	copier = getenv("NNN_IDLE_TIMEOUT");
 	if (copier) {

nnn.h

@@ -52,13 +52,12 @@ enum action {
 	SEL_VISIT,
 	SEL_FLTR,
 	SEL_MFLTR,
-	SEL_SEARCH,
 	SEL_TOGGLEDOT,
 	SEL_DETAIL,
 	SEL_STATS,
 	SEL_MEDIA,
 	SEL_FMEDIA,
-	SEL_DFB,
+	SEL_LAUNCH,
 	SEL_ARCHIVE,
 	SEL_LIST,
 	SEL_EXTRACT,
@@ -156,8 +155,6 @@ static struct key bindings[] = {
 	/* Toggle filter mode */
 	{ KEY_IC,         SEL_MFLTR,     "",     "" },
 	{ CONTROL('I'),   SEL_MFLTR,     "",     "" },
-	/* Desktop search */
-	{ CONTROL('_'),   SEL_SEARCH,    "",     "" },
 	/* Toggle hide .dot files */
 	{ '.',            SEL_TOGGLEDOT, "",     "" },
 	/* Detailed listing */
@@ -168,8 +165,8 @@ static struct key bindings[] = {
 	{ 'm',            SEL_MEDIA,     NULL,   "" },
 	/* Show media info full, run is hacked */
 	{ 'M',            SEL_FMEDIA,    "-f",   "" },
-	/* Open dir in desktop file manager */
-	{ 'o',            SEL_DFB,       "",     "" },
+	/* Launch a GUI application */
+	{ 'o',            SEL_LAUNCH,    "",     "" },
 	/* Create archive */
 	{ 'f',            SEL_ARCHIVE,   "",     "" },
 	/* List archive */