zeniba-nsxiv/examples/win-title
NRK 810a9651a3 reduce calls to win-title
rather than calling the script unconditionally per redraw, we now have
a `title_dirty` flag and keep track of when any of the relavent
information changes.

Co-authored-by: Arthur Williams <taaparthur@gmail.com>
Partially fixes: https://github.com/nsxiv/nsxiv/issues/258
2022-06-02 08:09:51 +00:00

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#!/bin/sh
# Example for $XDG_CONFIG_HOME/nsxiv/exec/win-title
# Called by nsxiv(1) whenever any of the relevant information changes.
# The output is set as nsxiv's window title.
#
# Arguments, "Optional" arguments might be empty:
# $1: resolved absolute path of the current file
# $2: current file number
# $3: total file number
# $4: image width (Optional: Disabled on thumbnails mode)
# $5: image height (Optional: Disabled on thumbnails mode)
# $6: current zoom (Optional: Disabled on thumbnails mode)
#
# The term file is used rather than image as nsxiv does not
# precheck that the input files are valid images. Total file
# count may be different from the actual count of valid images.
exec 2>/dev/null
filename="${1##*/}"
if [ -n "$4" ]; then # image mode
printf "%s" "nsxiv - ${filename} | ${4}x${5} ${6}% [${2}/${3}]"
else
printf "%s" "nsxiv - ${filename} [${2}/${3}]"
fi