2 # Copyright (C) 2006 Andre Noll
3 # Licensed under the LGPL, version 3. See COPYING and COPYING.LESSER.
5 if [[ "$(type -t _gsu_setup)" != "function" ]]; then
6 gsu_dir=${gsu_dir:-${BASH_SOURCE[0]%/*}}
7 . $gsu_dir/common || exit 1
11 _gsu_node_name_pattern='[a-zA-Z_]'
18 gsu_msg "fatal: could not get terminal geometry"
33 1) ret=1;; # cancelled
35 result="dialog exit code $ec"
40 # Open a dialog box which asks the user to input a text
42 # Usage: gsu_input_box <text> <init>
44 # <text> is displayed above of the input field, which is is preset to <init>.
45 # The entered text is returned in $result. On success (user pressed OK)
46 # the function returns zero. If the user selected Cancel, the return value is
47 # one. On dialog errors, a negative error code is returned.
50 local g text="$1" init="$2"
54 result="$(dialog --inputbox "$text" $g "$init" 3>&1 1>&2 2>&3 3>&-)"
58 # Show the given file in a text box
60 # Usage: gsu_textbox <path>
62 # The box has an OK button which closes the box when activated.
72 dialog --textbox "$file" $g
76 # Show a message in a text box
78 # Usage: gsu_msgbox <text>
80 # This is like gsu_textbox() but the text is passed as a string.
85 # Some versions of dialog segfault if the text is too long. Hence we
86 # always use a temporary file.
87 gsu_make_tempfile 'gsu_msgbox.XXXXXXXXXX'
88 (($ret < 0)) && return
90 trap "rm -f $tmp" EXIT
93 rm -f "$tmp" # ignore errors
98 local header="${1:-root}"
108 result="$(dialog --menu "$gsu_banner_txt ($header)" $opts 3>&1 1>&2 2>&3 3>&-)"
114 local tmp="${1%%$_gsu_node_name_pattern*}"
120 local tree="$1" root="${2%/}"
123 ret=-$E_GSU_MENU_TREE
124 result="subtree grep failed"
125 first="$(grep -n "$TAB\{1,\}$root/" <<< "$tree")" || return
126 [[ -z "$first" ]] && return
128 line_num="${first%%:*}"
129 _get_level "${first#*:}"
132 #echo "line: $line_num, root: $root, indent level: $level"
133 result="$(sed -e "1,${line_num}d;" <<< "$tree" \
134 | sed -e "/^$TAB\{1,$level\}$_gsu_node_name_pattern/,\$d" \
135 | sed -e "/^$TAB\{$(($level + 2))\}/d")"
137 ret=-$E_GSU_MENU_TREE
138 result="sed command for subtree $root failed"
146 local tree="$1" TAB=' '
148 result="$(grep "^${TAB}${_gsu_node_name_pattern}" <<< "$tree")"
150 ret=-$E_GSU_MENU_TREE
151 result="root node grep failed"
159 local header="$1" old_header
160 local tree="$2" subtree="$3"
163 _gsu_menu "$header" "$subtree"
164 (($ret < 0)) && return
165 [[ -z "$result" ]] && return # menu was cancelled
166 if [[ "${result%/}" != "$result" ]]; then
169 _get_subtree "$tree" "$header"
170 (($ret < 0)) && return
171 _browse "$header" "$tree" "$result"
172 (($ret < 0)) && return
176 eval ${gsu_name}_$result
182 local tree="$1" subtree
184 type -t dialog &> /dev/null
186 gsu_msg "dialog executable not found"
189 _get_root_nodes "$tree"
191 _browse "main menu" "$tree" "$subtree"