2019-10-16 14:40:29 +02:00
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#!/bin/sh
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# i3-get-window-criteria - Get criteria for use with i3 config commands
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# To use, run this script, then click on a window.
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# Output is in the format: [<name>=<value> <name>=<value> ...]
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# Known problem: when WM_NAME is used as fallback for the 'title="<string>"' criterion,
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# quotes in "<string>" are not escaped properly. This is a problem with the output of `xprop`,
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# reported upstream: https://bugs.freedesktop.org/show_bug.cgi?id=66807
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PROGNAME=$(basename "$0")
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# Check for xwininfo and xprop
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for cmd in xwininfo xprop; do
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if ! command -v $cmd > /dev/null 2>&1; then
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echo "$PROGNAME: $cmd: command not found" >&2
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exit 1
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fi
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done
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match_int='[0-9][0-9]*'
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match_string='".*"'
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match_qstring='"[^"\\]*(\\.[^"\\]*)*"' # NOTE: Adds 1 backreference
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{
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# Run xwininfo, get window id
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window_id=$(xwininfo -int | sed -nre "s/^xwininfo: Window id: ($match_int) .*$/\1/p")
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echo "id=$window_id"
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# Run xprop, transform its output into i3 criteria. Handle fallback to
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# WM_NAME when _NET_WM_NAME isn't set
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2020-05-11 13:59:41 +02:00
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xprop -id "$window_id" |
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2019-10-16 14:40:29 +02:00
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sed -nr \
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-e "s/^WM_CLASS\(STRING\) = ($match_qstring), ($match_qstring)$/instance=\1\nclass=\3/p" \
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-e "s/^WM_WINDOW_ROLE\(STRING\) = ($match_qstring)$/window_role=\1/p" \
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-e "/^WM_NAME\(STRING\) = ($match_string)$/{s//title=\1/; h}" \
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-e "/^_NET_WM_NAME\(UTF8_STRING\) = ($match_qstring)$/{s//title=\1/; h}" \
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-e '${g; p}'
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} | sort | tr "\n" " " | sed -r 's/^(.*) $/[\1]\n/'
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