378 lines
9.3 KiB
Text
378 lines
9.3 KiB
Text
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# Copy this file into /usr/share/zsh/site-functions/
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# and add 'autoload n-list-input` to .zshrc
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#
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# This is an internal function not for direct use
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emulate -L zsh
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zmodload zsh/curses
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setopt typesetsilent
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# Compute first to show index
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_nlist_compute_first_to_show_idx() {
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from_what_idx_list_is_shown=0+((current_idx-1)/page_height)*page_height+1
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}
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_nlist_update_from_keywords() {
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keywordisfresh="1"
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if [ "$nkeywords" -gt 0 ]; then
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curkeyword=$(( (curkeyword+1) % (nkeywords+1) ))
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if [ "$curkeyword" -eq "0" ]; then
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buffer=""
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else
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buffer="${keywords[curkeyword]}"
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fi
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fi
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}
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_nlist_iterate_theme() {
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themeisfresh="1"
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if [ "$1" = "1" ]; then
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curtheme=$(( (curtheme+1) % (nthemes+1) ))
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else
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curtheme=curtheme-1
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[ "$curtheme" -lt 0 ] && curtheme=nthemes
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fi
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if [ "$nthemes" -gt 0 ]; then
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local theme=${themes[curtheme]}
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[ "$curtheme" -eq "0" ] && theme="$backuptheme"
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colorpair="${theme%/*}"
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bold="${theme##*/}"
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background="${colorpair#*/}"
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zcurses bg main "$colorpair"
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zcurses bg inner "$colorpair"
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fi
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}
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_nlist_rotate_buffer() {
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setopt localoptions noglob
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local -a words
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words=( ${(s: :)buffer} )
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words=( ${words[-1]} ${words[1,-2]} )
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local space=""
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[ "${buffer[-1]}" = " " ] && space=" "
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buffer="${(j: :)words}$space"
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}
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typeset -ga reply
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reply=( -1 '' )
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integer current_idx="$1"
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integer from_what_idx_list_is_shown="$2"
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integer page_height="$3"
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integer page_width="$4"
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integer last_element="$5"
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integer hscroll="$6"
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local key="$7"
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integer search="$8"
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local buffer="$9"
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integer uniq_mode="$10"
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integer f_mode="$11"
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#
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# Listening for input
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#
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if [ "$search" = "0" ]; then
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case "$key" in
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(UP|k|$'\C-P')
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# Are there any elements before the current one?
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[ "$current_idx" -gt 1 ] && current_idx=current_idx-1;
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_nlist_compute_first_to_show_idx
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;;
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(DOWN|j|$'\C-N')
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# Are there any elements after the current one?
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[ "$current_idx" -lt "$last_element" ] && current_idx=current_idx+1;
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_nlist_compute_first_to_show_idx
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;;
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(PPAGE|$'\b'|$'\C-?'|BACKSPACE)
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current_idx=current_idx-page_height
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[ "$current_idx" -lt 1 ] && current_idx=1;
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_nlist_compute_first_to_show_idx
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;;
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(NPAGE|" ")
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current_idx=current_idx+page_height
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[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
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_nlist_compute_first_to_show_idx
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;;
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($'\C-U')
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current_idx=current_idx-page_height/2
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[ "$current_idx" -lt 1 ] && current_idx=1;
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_nlist_compute_first_to_show_idx
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;;
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($'\C-D')
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current_idx=current_idx+page_height/2
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[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
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_nlist_compute_first_to_show_idx
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;;
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(HOME|g)
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current_idx=1
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_nlist_compute_first_to_show_idx
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;;
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(END|G)
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current_idx=last_element
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_nlist_compute_first_to_show_idx
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;;
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($'\n'|ENTER)
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# Is that element selectable?
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# Check for this only when there is no search
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if [[ "$NLIST_SEARCH_BUFFER" != "" || "$NLIST_IS_UNIQ_MODE" -eq 1 ||
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${NLIST_NONSELECTABLE_ELEMENTS[(r)$current_idx]} != $current_idx ]]
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then
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# Save current element in the result variable
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reply=( $current_idx "SELECT" )
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fi
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;;
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(H|'?')
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# This event needs to be enabled
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if [[ "${NLIST_ENABLED_EVENTS[(r)HELP]}" = "HELP" ]]; then
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reply=( -1 "HELP" )
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fi
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;;
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(F1)
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# This event needs to be enabled
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if [[ "${NLIST_ENABLED_EVENTS[(r)F1]}" = "F1" ]]; then
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reply=( -1 "$key" )
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fi
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;;
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(F4|F5|F6|F7|F8|F9|F10|DC)
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# ignore; F2, F3 are used below
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;;
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(q)
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reply=( -1 "QUIT" )
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;;
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(/)
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search=1
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_nlist_cursor_visibility 1
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;;
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($'\t')
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reply=( $current_idx "LEAVE" )
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;;
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($'\C-L')
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reply=( -1 "REDRAW" )
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;;
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(\])
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[[ "${(t)NLIST_HOP_INDEXES}" = "array" || "${(t)NLIST_HOP_INDEXES}" = "array-local" ]] &&
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[ -z "$NLIST_SEARCH_BUFFER" ] && [ "$NLIST_IS_UNIQ_MODE" -eq 0 ] &&
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for idx in "${(n)NLIST_HOP_INDEXES[@]}"; do
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if [ "$idx" -gt "$current_idx" ]; then
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current_idx=$idx
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_nlist_compute_first_to_show_idx
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break
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fi
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done
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;;
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(\[)
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[[ "${(t)NLIST_HOP_INDEXES}" = "array" || "${(t)NLIST_HOP_INDEXES}" = "array-local" ]] &&
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[ -z "$NLIST_SEARCH_BUFFER" ] && [ "$NLIST_IS_UNIQ_MODE" -eq 0 ] &&
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for idx in "${(nO)NLIST_HOP_INDEXES[@]}"; do
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if [ "$idx" -lt "$current_idx" ]; then
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current_idx=$idx
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_nlist_compute_first_to_show_idx
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break
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fi
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done
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;;
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('<'|'{'|LEFT|'h')
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hscroll=hscroll-7
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[ "$hscroll" -lt 0 ] && hscroll=0
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;;
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('>'|'}'|RIGHT|'l')
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hscroll+=7
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;;
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($'\E')
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buffer=""
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;;
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(F3)
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if [ "$search" = "1" ]; then
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search=0
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_nlist_cursor_visibility 0
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else
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search=1
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_nlist_cursor_visibility 1
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fi
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;;
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(o|$'\C-O')
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uniq_mode=1-uniq_mode
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;;
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(f|$'\C-F')
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(( f_mode=(f_mode+1) % 3 ))
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;;
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($'\x1F'|F2|$'\C-X')
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search=1
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_nlist_cursor_visibility 1
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_nlist_update_from_keywords
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;;
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($'\C-T')
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_nlist_iterate_theme 1
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;;
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($'\C-G')
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_nlist_iterate_theme 0
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;;
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($'\C-E'|e)
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# This event needs to be enabled
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if [[ "${NLIST_ENABLED_EVENTS[(r)EDIT]}" = "EDIT" ]]; then
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reply=( -1 "EDIT" )
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fi
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;;
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($'\C-A')
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_nlist_rotate_buffer
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;;
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(*)
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;;
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esac
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else
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case "$key" in
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($'\n'|ENTER)
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if [ "$NLIST_INSTANT_SELECT" = "1" ]; then
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if [[ "$NLIST_SEARCH_BUFFER" != "" || "$NLIST_IS_UNIQ_MODE" -eq 1 ||
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${NLIST_NONSELECTABLE_ELEMENTS[(r)$current_idx]} != $current_idx ]]
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then
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reply=( $current_idx "SELECT" )
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fi
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else
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search=0
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_nlist_cursor_visibility 0
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fi
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;;
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($'\C-L')
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reply=( -1 "REDRAW" )
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;;
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#
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# Slightly limited navigation
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#
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(UP|$'\C-P')
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[ "$current_idx" -gt 1 ] && current_idx=current_idx-1;
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_nlist_compute_first_to_show_idx
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;;
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(DOWN|$'\C-N')
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[ "$current_idx" -lt "$last_element" ] && current_idx=current_idx+1;
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_nlist_compute_first_to_show_idx
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;;
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(PPAGE)
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current_idx=current_idx-page_height
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[ "$current_idx" -lt 1 ] && current_idx=1;
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_nlist_compute_first_to_show_idx
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;;
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(NPAGE)
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current_idx=current_idx+page_height
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[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
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_nlist_compute_first_to_show_idx
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;;
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($'\C-U')
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current_idx=current_idx-page_height/2
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[ "$current_idx" -lt 1 ] && current_idx=1;
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_nlist_compute_first_to_show_idx
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;;
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($'\C-D')
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current_idx=current_idx+page_height/2
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[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
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_nlist_compute_first_to_show_idx
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;;
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(HOME)
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current_idx=1
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_nlist_compute_first_to_show_idx
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;;
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(END)
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current_idx=last_element
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_nlist_compute_first_to_show_idx
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;;
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(LEFT)
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hscroll=hscroll-7
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[ "$hscroll" -lt 0 ] && hscroll=0
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;;
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(RIGHT)
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hscroll+=7
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;;
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(F1)
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# This event needs to be enabled
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if [[ "${NLIST_ENABLED_EVENTS[(r)F1]}" = "F1" ]]; then
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reply=( -1 "$key" )
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fi
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;;
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(F4|F5|F6|F7|F8|F9|F10|DC)
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# ignore; F2, F3 are used below
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;;
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#
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# The input
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#
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($'\b'|$'\C-?'|BACKSPACE)
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buffer="${buffer%?}"
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;;
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($'\C-W')
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[ "$buffer" = "${buffer% *}" ] && buffer="" || buffer="${buffer% *}"
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;;
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($'\C-K')
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buffer=""
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;;
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($'\E')
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buffer=""
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search=0
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_nlist_cursor_visibility 0
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;;
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(F3)
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if [ "$search" = "1" ]; then
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search=0
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_nlist_cursor_visibility 0
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else
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search=1
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_nlist_cursor_visibility 1
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fi
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;;
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($'\C-O')
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uniq_mode=1-uniq_mode
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;;
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($'\C-F')
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(( f_mode=(f_mode+1) % 3 ))
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;;
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($'\x1F'|F2|$'\C-X')
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_nlist_update_from_keywords
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;;
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($'\C-T')
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_nlist_iterate_theme 1
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;;
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($'\C-G')
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_nlist_iterate_theme 0
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;;
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($'\C-E')
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# This event needs to be enabled
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if [[ "${NLIST_ENABLED_EVENTS[(r)EDIT]}" = "EDIT" ]]; then
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reply=( -1 "EDIT" )
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fi
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;;
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($'\C-A')
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_nlist_rotate_buffer
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;;
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(*)
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if [[ $#key == 1 && $((#key)) -lt 31 ]]; then
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# ignore all other control keys
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else
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buffer+="$key"
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fi
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;;
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esac
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fi
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reply[3]="$current_idx"
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reply[4]="$from_what_idx_list_is_shown"
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reply[5]="$hscroll"
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reply[6]="$search"
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reply[7]="$buffer"
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reply[8]="$uniq_mode"
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reply[9]="$f_mode"
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# vim: set filetype=zsh:
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