3 if [[ "$(type -t _gsu_setup)" != "function" ]]; then
4 gsu_dir=${gsu_dir:-${BASH_SOURCE[0]%/*}}
5 . $gsu_dir/common || exit 1
9 _gsu_node_name_pattern='[a-zA-Z_]'
16 gsu_msg "fatal: could not get terminal geometry"
31 1) ret=1;; # cancelled
33 result="dialog exit code $ec"
38 # Open a dialog box which asks the user to input a text
40 # Usage: gsu_input_box <text> <init>
42 # <text> is displayed above of the input field, which is is preset to <init>.
43 # The entered text is returned in $result. On success (user pressed OK)
44 # the function returns zero. If the user selected Cancel, the return value is
45 # one. On dialog errors, a negative error code is returned.
48 local g text="$1" init="$2"
52 result="$(dialog --inputbox "$text" $g "$init" 3>&1 1>&2 2>&3 3>&-)"
56 # Show the given file in a text box
58 # Usage: gsu_textbox <path>
60 # The box has an OK button which closes the box when activated.
70 dialog --textbox "$file" $g
74 # Show a message in a text box
76 # Usage: gsu_msgbox <text>
78 # This is like gsu_textbox() but the text is passed as a string.
81 # Some versions of dialog segfault if the text is too long. Hence we
82 # always use a temporary file.
83 local tmp="$(mktemp gsu_msgbox.XXXXXXXXXX)"
87 result='temp file for textbox'
92 rm -f "$tmp" # ignore errors
97 local header="${1:-root}"
99 local i state opts num=0
107 result="$(dialog --menu "$gsu_banner_txt ($header)" $opts 3>&1 1>&2 2>&3 3>&-)"
113 local tmp="${1%%$_gsu_node_name_pattern*}"
119 local tree="$1" root="${2%/}"
122 ret=-$E_GSU_MENU_TREE
123 result="subtree grep failed"
124 first="$(grep -n "$TAB\{1,\}$root/" <<< "$tree")" || return
125 [[ -z "$first" ]] && return
127 line_num="${first%%:*}"
128 _get_level "${first#*:}"
131 #echo "line: $line_num, root: $root, indent level: $level"
132 result="$(sed -e "1,${line_num}d;" <<< "$tree" \
133 | sed -e "/^$TAB\{1,$level\}$_gsu_node_name_pattern/,\$d" \
134 | sed -e "/^$TAB\{$(($level + 2))\}/d")"
136 ret=-$E_GSU_MENU_TREE
137 result="sed command for subtree $root failed"
145 local tree="$1" TAB=' '
147 result="$(grep "^${TAB}${_gsu_node_name_pattern}" <<< "$tree")"
149 ret=-$E_GSU_MENU_TREE
150 result="root node grep failed"
158 local header="$1" old_header
159 local tree="$2" subtree="$3"
162 _gsu_menu "$header" "$subtree"
163 (($ret < 0)) && return
164 [[ -z "$result" ]] && return # menu was cancelled
165 if [[ "${result%/}" != "$result" ]]; then
168 _get_subtree "$tree" "$header"
169 (($ret < 0)) && return
170 _browse "$header" "$tree" "$result"
171 (($ret < 0)) && return
175 eval ${gsu_name}_$result
181 local tree="$1" subtree
183 type -t dialog &> /dev/null
185 gsu_msg "dialog executable not found"
188 _get_root_nodes "$tree"
190 _browse "main menu" "$tree" "$subtree"