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#!/hint/zsh
# Show results with tmux popup
# Example usage:
# zstyle ':fzf-tab:*' fzf-command ftb-tmux-popup
# zstyle ':fzf-tab:*' popup-pad 0 0
# It can also be used as a standalone tool, like:
# ls | ftb-tmux-popup
emulate -L zsh -o extended_glob
# import min
autoload -Uz zmathfunc
zmathfunc
: ${tmp_dir:=${TMPPREFIX:-/tmp/zsh}-fzf-tab-$USER}
# fallback to fzf if it is not running in tmux
if (( ! $+TMUX_PANE )); then
fzf $@
return
fi
local ret=0
local -a fzf_opts=($@)
fzf_opts=(${${fzf_opts/--height*}/--layout*})
# get position of cursor and size of window
local -a tmp=($(command tmux display-message -p "#{pane_top} #{cursor_y} #{pane_left} #{cursor_x} #{window_height} #{window_width}"))
local cursor_y=$((tmp[1] + tmp[2])) cursor_x=$((tmp[3] + tmp[4])) window_height=$tmp[5] window_width=$tmp[6]
# if not called by fzf-tab
if (( ! $+IN_FZF_TAB )); then
[[ -d $tmp_dir ]] || mkdir -p $tmp_dir
cat > $tmp_dir/completions.$$
fi
local text REPLY comp_lines comp_length length popup_pad
zstyle -a ":fzf-tab:$_ftb_curcontext" popup-pad popup_pad || popup_pad=(0 0)
# get the size of content, note we should remove all ANSI color code
comp_lines=$(( ${#${(f)mapfile[$tmp_dir/completions.$$]}} + $popup_pad[2] ))
if (( comp_lines <= 500 )); then
comp_length=0
for line in ${(f)mapfile[$tmp_dir/completions.$$]}; do
length=${(m)#${(S)line//$'\x1b['[0-9]#*m}}
(( length >= comp_length )) && comp_length=$length
done
else
# FIXME: can't get the correct width of CJK characters.
comp_length=$(command sed 's/\x1b\[[0-9;]*m//g;s/\x00//g' $tmp_dir/completions.$$ | command awk 'length > max_length { max_length = length; } END { print max_length }')
fi
comp_length=$(( comp_length + $popup_pad[1] ))
local popup_height popup_y popup_width popup_x
# calculate the popup height and y position
if (( cursor_y * 2 > window_height )); then
# show above the cursor
popup_height=$(( min(comp_lines + 4, cursor_y) ))
popup_y=$cursor_y
else
# show below the cursor
popup_height=$(( min(comp_lines + 4, window_height - cursor_y) ))
popup_y=$(( cursor_y + popup_height + 1 ))
fzf_opts+=(--layout=reverse)
fi
# calculate the popup width and x position
popup_width=$(( min(comp_length + 5, window_width) ))
popup_x=$(( cursor_x + popup_width > window_width ? window_width - popup_width : cursor_x ))
echo -E "$commands[fzf] ${(qq)fzf_opts[@]} < $tmp_dir/completions.$$ > $tmp_dir/result-$$" > $tmp_dir/fzf-$$
{
tmux popup -x $popup_x -y $popup_y \
-w $popup_width -h $popup_height \
-d $PWD -E ". $tmp_dir/fzf-$$" || ret=$?
echo -E "$(<$tmp_dir/result-$$)"
} always {
command rm $tmp_dir/*-$$
(( $+IN_FZF_TAB )) || command rm $tmp_dir/completions.$$
}
return $ret
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