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41 lines
941 B
Bash
Executable file
41 lines
941 B
Bash
Executable file
#!/usr/bin/env zsh
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PANEL_FIFO="$1"
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PREFIX="$2"
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DELAY="$3"
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MAX_LEN="$(("$4"-3))"
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exec 5>"$PANEL_FIFO"
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main() {
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local win_id="$(bspc query -N -n focused)"
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local win_name="$(xprop -id "$win_id" | grep "^WM_NAME" | cut -d' ' -f3- | tr -d '"')"
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local trimmed_win_name="${win_name:0:$MAX_LEN}"
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if [[ "$win_name" != "$trimmed_win_name" ]]; then
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win_name="${trimmed_win_name}..."
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fi
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REPLY="$trimmed_win_name"
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}
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# Run 2 loops here, one for instant updates once other window is focused
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# in bspwm, other for timed updates, in case the window changes it's title
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# on it's own (such as when we switch a tab in firefox)
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{print init; stdbuf -oL bspc subscribe node} | while read line; do
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case ${line} in
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node_focus* ) main ;;
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init ) main ;;
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* ) continue ;;
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esac
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echo "$PREFIX $REPLY" >&5
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done &
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while :; do
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main
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echo "$PREFIX $REPLY" >&5
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sleep "$DELAY"
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done
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wait $!
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