[openbox] exit script

[D.T.]

On Wed, 2022-05-18 at 13:03 -0600, Dave Serls wrote:
> I'm wondering if there is any approved method of executing a command
> or 
> script when "exit" is the selected action from the main menu.
> I'd like to scan (xlsclients -a) for running tasks and either cleanup
> or
> abort the "exit".
> 

Thanks you for the hint with xlsclients! I wonder why I never knew
about it.

I have been using a script to gracefully close all windows before
exiting or shutting down.
It simply sends wmctrl -c to close all windows gracefully; if the app
objects (like e.g. an editor with unsaved changes would) I get
prompted.

It works well enough, but I will definitely take a look at xlsclients.

The menu.xml part:

    <item label="Exit"><action
name="Execute"><command><![CDATA[alacritty --title 'Graceful Exit' -e
~/.config/scripts/close-all-windows 'openbox --
exit']]></command></action></item>
    <item label="Reboot"><action
name="Execute"><command><![CDATA[alacritty --title 'Graceful Reboot' -e
~/.config/scripts/close-all-windows systemctl
reboot]]></command></action></item>
    <item label="Shutdown"><action
name="Execute"><command><![CDATA[alacritty --title 'Graceful Shutdown'
-e ~/.config/scripts/close-all-windows systemctl
poweroff]]></command></action></item>

The script:

##################################################################
sep="############################"
excludeapps=( tint2 conky xfce4-panel glava )

# simple dependency check
for dep in grep xwininfo wmctrl; do
	type -f $dep >/dev/null || exit 1
done

echo "Gracefully closing all windows."

excludeapps_winid=()
for (( i=0,j=0 ; i<${#excludeapps[@]} ; i++ ))
do
    while read excludeapps_winid[j]
    do
        if [[ "x${excludeapps_winid[j]}" != "x" ]]
        then
            excludeapps_winid[j]="${excludeapps_winid[j]%% *}"
            j=$((j + 1))
        fi
    done <<< "$(xwininfo -root -tree -int | grep -i
"(.*${excludeapps[i]}.*)")"
    # dump all window info, with IDs in decimal, and grep for
classes/names,
    # in brackets like: ("urxvt" "URxvt")
done

# Add this window to the array of excluded apps
# WINDOWID uses the same decimal format, just append it to the array
excludeapps_winid=( ${excludeapps_winid[@]} $WINDOWID )

echo "$sep
List of classes/names to exclude: \"${excludeapps[@]}\" and self.
$sep
Window IDs to exclude: ${excludeapps_winid[@]}"

while read -r line
do
    for (( i=0 ; i<${#excludeapps_winid[@]} ; i++ ))
    do
        excludeapps_winid[i]="0x$(printf '%08x'
${excludeapps_winid[i]})"
        if [[ "${line%% *}" == "${excludeapps_winid[i]}" ]]
        then
            line=''
            break
        fi
    done
    if [[ "x$line" != "x" ]]
    then
        echo -e "$sep\nClosing: ${line/$HOSTNAME/}"
        # go to the desktop in question...
        wmctrl -s "${line:10:3}"
        # ...and close:
        wmctrl -ic "${line%% *}"
        # checking if it's really closed now:
        if wmctrl -l | grep -E "^${line%% *}" >/dev/null 2>&1
        then
            # wait, presumably for user action:
            echo -n "Waiting . "
            while wmctrl -l | grep -E "^${line%% *}" >/dev/null 2>&1
            do
                sleep 0.1; echo -n '.'
            done
            echo
        fi
    fi
done <<< "$(wmctrl -l)"

wmctrl -ia "0x$(printf '%08x' $WINDOWID)" >/dev/null 2>&1

echo "$sep
Press <Enter> for \"$@\" or anything else to continue."
oldifs="$IFS"
IFS=
read -s -n 1 key
# -s: do not echo input character. -n 1: read only 1 character
if [ -z "$key" ]; then
    IFS="$oldifs"
    while :
    do
        $@
        sleep 2
    done
else
    IFS="$oldifs"
fi
##################################################################

I cut out some irrelevant parts, I hope it works as-is.


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