tabbed

tab interface for application supporting Xembed
git clone git://git.suckless.org/tabbed
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commit d60069a3e7a9e382f3221f8e405ad8c05abeea20
parent 0728caee306423cd1dc139e000828329c9285ab7
Author: Connor Lane Smith <cls@lubutu.com>
Date:   Wed,  6 May 2015 17:46:10 +0100

add xembed wrapper utility

xembed will cause a command to attempt to XEmbed into the window given
by the environment variable XEMBED, so long as it is in the foreground
of its controlling terminal. This causes a process to effectively take
the place of the terminal window, unless it is backgrounded.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Diffstat:
LICENSE | 4++--
Makefile | 25+++++++++++++++----------
tabbed.1 | 4++--
xembed.1 | 35+++++++++++++++++++++++++++++++++++
xembed.c | 46++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 100 insertions(+), 14 deletions(-)

diff --git a/LICENSE b/LICENSE @@ -1,8 +1,8 @@ MIT/X Consortium License © 2009-2011 Enno Boland <g s01 de> -© 2011 Connor Lane Smith <cls@lubutu.com> -© 2012-2014 Christoph Lohmann <20h@r-36.net> +© 2011,2015 Connor Lane Smith <cls@lubutu.com> +© 2012-2015 Christoph Lohmann <20h@r-36.net> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), diff --git a/Makefile b/Makefile @@ -3,10 +3,11 @@ include config.mk -SRC = tabbed.c +SRC = tabbed.c xembed.c OBJ = ${SRC:.c=.o} +BIN = ${OBJ:.o=} -all: options tabbed +all: options ${BIN} options: @echo tabbed build options: @@ -24,13 +25,13 @@ config.h: @echo creating $@ from config.def.h @cp config.def.h $@ -tabbed: tabbed.o +.o: @echo CC -o $@ - @${CC} -o $@ tabbed.o ${LDFLAGS} + @${CC} -o $@ $< ${LDFLAGS} clean: @echo cleaning - @rm -f tabbed ${OBJ} tabbed-${VERSION}.tar.gz + @rm -f ${BIN} ${OBJ} tabbed-${VERSION}.tar.gz dist: clean @echo creating dist tarball @@ -42,19 +43,23 @@ dist: clean @rm -rf tabbed-${VERSION} install: all - @echo installing executable file to ${DESTDIR}${PREFIX}/bin + @echo installing executable files to ${DESTDIR}${PREFIX}/bin @mkdir -p ${DESTDIR}${PREFIX}/bin - @cp -f tabbed ${DESTDIR}${PREFIX}/bin + @cp -f ${BIN} ${DESTDIR}${PREFIX}/bin @chmod 755 ${DESTDIR}${PREFIX}/bin/tabbed - @echo installing manual page to ${DESTDIR}${MANPREFIX}/man1 + @echo installing manual pages to ${DESTDIR}${MANPREFIX}/man1 @mkdir -p ${DESTDIR}${MANPREFIX}/man1 @sed "s/VERSION/${VERSION}/g" < tabbed.1 > ${DESTDIR}${MANPREFIX}/man1/tabbed.1 @chmod 644 ${DESTDIR}${MANPREFIX}/man1/tabbed.1 + @sed "s/VERSION/${VERSION}/g" < xembed.1 > ${DESTDIR}${MANPREFIX}/man1/xembed.1 + @chmod 644 ${DESTDIR}${MANPREFIX}/man1/xembed.1 uninstall: - @echo removing executable file from ${DESTDIR}${PREFIX}/bin + @echo removing executable files from ${DESTDIR}${PREFIX}/bin @rm -f ${DESTDIR}${PREFIX}/bin/tabbed - @echo removing manual page from ${DESTDIR}${MANPREFIX}/man1 + @rm -f ${DESTDIR}${PREFIX}/bin/xembed + @echo removing manual pages from ${DESTDIR}${MANPREFIX}/man1 @rm -f ${DESTDIR}${MANPREFIX}/man1/tabbed.1 + @rm -f ${DESTDIR}${MANPREFIX}/man1/xembed.1 .PHONY: all options clean dist install uninstall diff --git a/tabbed.1 b/tabbed.1 @@ -156,7 +156,7 @@ See the LICENSE file for the authors. .SH LICENSE See the LICENSE file for the terms of redistribution. .SH SEE ALSO -.BR st (1) +.BR st (1), +.BR xembed (1) .SH BUGS Please report them. - diff --git a/xembed.1 b/xembed.1 @@ -0,0 +1,35 @@ +.TH XEMBED 1 tabbed\-VERSION +.SH NAME +xembed \- XEmbed foreground process +.SH SYNOPSIS +.B xembed +.I flag command +.RI [ "argument ..." ] +.SH DESCRIPTION +If the environment variable XEMBED is set, and +.B xembed +is in the foreground of its controlling tty, it will execute +.IP +command flag $XEMBED [argument ...] +.LP +Otherwise it will execute +.IP +command [argument ...] +.LP +.SH EXAMPLE +In a terminal emulator within a +.B tabbed +session, the shell alias +.IP +$ alias surf='xembed -e surf' +.LP +will cause `surf' to open in a new tab, unless it is run in the background, +i.e. `surf &', in which case it will instead open in a new window. +.SH AUTHORS +See the LICENSE file for the authors. +.SH LICENSE +See the LICENSE file for the terms of redistribution. +.SH SEE ALSO +.BR tabbed (1) +.SH BUGS +Please report them. diff --git a/xembed.c b/xembed.c @@ -0,0 +1,46 @@ +/* + * See LICENSE file for copyright and license details. + */ + +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +int +main(int argc, char **argv) +{ + char *xembed; + int tty; + pid_t pgrp, tcpgrp; + + if(argc < 3) { + fprintf(stderr, "usage: %s flag cmd ...\n", argv[0]); + return 2; + } + + if(!(xembed = getenv("XEMBED"))) + goto noembed; + + if((tty = open("/dev/tty", O_RDONLY)) < 0) + goto noembed; + + pgrp = getpgrp(); + tcpgrp = tcgetpgrp(tty); + + close(tty); + + if(pgrp == tcpgrp) { /* in foreground of tty */ + argv[0] = argv[2]; + argv[2] = xembed; + } + else { +noembed: + argv += 2; + } + + execvp(argv[0], argv); + + perror(argv[0]); /* failed to execute */ + return 1; +}