1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
#!/bin/bash
# copyright 2002 lmoore@tump.com under the terms of the GNU LGPL.
# setApplicationTitle text
# set the application title. this may be ignored by the implementations
#
# setDimension width height
# set the width and height of the box. this may be ignored by the
# implementations
#
# booleanBox title text
# issue a yes/no box. presents two buttons "yes" and "no".
# returns 0 on yes, 1 on no, 255 on cancel/error.
#
# msgBox title text
# show a message in a box
#
# inputBox title text [initial-input]
# show a text message and text input field. the optional initial-input
# may be ignored by implementations. returns 0 and puts the input in the
# variable REPLY input on success and non-zero on failure.
#
# menuBox title text {tag item}+
# show a text message and a menu. returns 0 and puts the tag of the
# selected item in the variable REPLY success. returns non-zero on failure.
#
# checkBox title text {tag item status}+
# show a text message and a list of checkable items. multiple items can be
# checked. status is either "on" or "off". returns 0 and puts the tags
# of all selected items in the variable REPLY. returns non-zero on failure.
#
# radioBox title text {tag item status}+
# this is the same as checkBox but only a single item selected at a time.
#
# textBox title file
# show a file in a text box
#
# passwordBox title text
# same as inputBox, but the input text won't be echoed. some
# implementations may not support non-echoing input.
# the following is private implementation, users don't need to look past
# here
console_dialogs="dialog whiptail"
x_dialogs="Xdialog"
test -z "$WIDTH" && WIDTH=0
test -z "$HEIGHT" && HEIGHT=0
BACKTITLE=""
setApplicationTitle() {
BACKTITLE=$*
}
setDimension() {
WIDTH=$1
HEIGHT=$2
}
findProg() {
# this is probably overkill
which $1 > /dev/null 2> /dev/null
}
testXserver() {
# attempts to test if user can write to the X server
if [ -n "$(which xdpyinfo)" ]; then
# requires xbase-clients
xdpyinfo &> /dev/null
return $?
else
# assume the best
return 0
fi
}
getImplementation() {
if [ -n "$DISPLAY" ]; then
# they running X, let's try to use an X based dialog
testXserver
if [ "$?" = "0" ]; then
for p in $x_dialogs ; do
findProg $p && { echo $p; return 0; }
done
fi
fi
# no X or no X based implementation
for p in $console_dialogs ; do
findProg $p && { echo $p; return 0; }
done
# nothing matched, fallback on the command line
echo "cmdline"
return 0
}
# if the user specifies a preference, we'll attempt to honor it
if [ -z "$DIALOG" ]; then
# no preference, we'll do what we can
DIALOG=$(getImplementation)
fi
case "$DIALOG" in
Xdialog|xdialog) source easydialog_Xdialog.sh;;
dialog|whiptail) source easydialog_dialog.sh;;
cmdline) source easydialog_cmdline.sh;;
*) echo "$DIALOG is not a valid easydialog implementation."
exit 1
;;
esac
|
