#!/bin/sh -e

# Copyright (c) 2016 The crouton Authors. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

# Runs the specified X11 application in its own X server in Chromium OS.

USAGE="Usage: ${0##*/} [-f] [-F|-T] APPLICATION [PARAMETERS ...]

Launches a windowed session in Chromium OS for any graphical application.

Applications launched in this way show in independent windows or tabs.

All parameters are passed to the specified application.

By default, the app is launched in a window.

Options:

-F Launch the APPLICATION full-screen.

-T Launch the APPLICATION in a tab.

-f Prevent ${0##*/} from quitting automatically. (see NOTE below)

NOTE:

${0##*/} will normally close when the application returns. Some gui applications

fork before or during normal operation, which can confuse ${0##*/} and cause it to

quit prematurely. If your application does not have a parameter that prevents

it from forking, and crouton is unable to automatically detect the fork, you can

use -f to prevent ${0##*/} from quitting automatically.

${0##*/} will quit if you close the Chromium OS window when nothing is displayed.

A default window manager will full-screen all windows, unless APPLICATION begins

with 'start' or is 'xinit'. You can cycle through multiple windows inside the

application via Ctrl-Alt-Tab/Ctrl-Alt-Shift-Tab, or close them via

Ctrl-Alt-Shift-Escape. If APPLICATION begins with 'start' but you still want to

use the default window manager, specify the full path of the application."

. "`dirname "$0"`/../installer/functions"

xiwicmd="`readlink -f "$0"`"

OPTSTRING='FfTt'

if [ "$#" = 0 ]; then

error 2 "$USAGE"

elif [ "$1" = '/' ]; then

shift 1

foreground=''

while getopts "$OPTSTRING" f; do

case "$f" in

f) foreground='y';;

t|T|F) :;;

\?) error 2 "$USAGE";;

esac

done

shift "$((OPTIND-1))"

xsetroot -cursor_name left_ptr

if [ "$1" != 'xinit' -a "${1#start}" = "$1" ]; then

i3 -c "/etc/crouton/xiwi.conf" &

# Wait for i3 to launch

xprop -spy -root | grep -q _NET_ACTIVE_WINDOW

# Launch the window title monitoring daemon

# _NET_ACTIVE_WINDOW is more reliable than _NET_CLIENT_LIST_STACKING for

# keeping track of the topmost window.

xprop -spy -notype -root 0i ' $0\n' '_NET_ACTIVE_WINDOW' 2>/dev/null | {

name="`cat /etc/crouton/name`"

monpid=''

monwid=''

while read _ wid; do

if [ "$wid" = "$monwid" ]; then

continue

fi

if [ -n "$monpid" ]; then

kill "$monpid" 2>/dev/null

fi

monwid="$wid"

(xprop -spy -notype -id "$wid" 'WM_NAME' 2>/dev/null || echo) \

| while read _ title; do

title="${title%\"}"

xprop -root -f CROUTON_NAME 8s -set CROUTON_NAME \

"$name/$1${title:+": "}${title#*\"}"

{

echo -n 'C'

croutoncycle l

} | websocketcommand >/dev/null

done &

monpid="$!"

done

if [ -n "$monpid" ]; then

kill "$monpid" 2>/dev/null

fi

} &

# Launch user init scripts

if [ -f "$HOME/.xiwirc" ]; then

/bin/sh "$HOME/.xiwirc" || true

fi

fi

starttime="$(date +%s)"

"$@"

endtime="$(date +%s)"

if [ -n "$foreground" -o "$(($endtime-$starttime))" -le 2 ]; then

xprop -spy -notype -root 0i ' $0\n' 'CROUTON_CONNECTED' \

| while read _ connected; do

if [ "$connected" != 0 ]; then

continue

fi

# _NET_CLIENT_LIST_STACKING is more reliable than

# _NET_ACTIVE_WINDOW for detecting when no windows exist

if ! xprop -notype -root '_NET_CLIENT_LIST_STACKING' \

| grep -q '0x'; then

kill "$$"

break

fi

done

fi

else

export XMETHOD='xiwi-window'

while getopts "$OPTSTRING" f; do

case "$f" in

f) :;;

F) export XMETHOD='xiwi-fullscreen';;

t|T) export XMETHOD='xiwi-tab';;

\?) error 2 "$USAGE";;

esac

done

eval "exe=\"\$$OPTIND\""

if ! hash "$exe" 2>/dev/null; then

error 2 "${0##*/}: $exe: not found"

fi

exec /usr/local/bin/xinit "$xiwicmd" / "$@"

fi