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UI::Dialog::Backend::ASCII - Dialog backend for the native Perl mode of basic text.
Contents
Abstract
UI::Dialog::Backend::ASCII is the UI::Dialog backend for the native Perl mode of basic text. The widgets
are very much "rigid" in that the width and height arguments are completely ignored.
Bugs
Please email the author with any bug reports. Include the name of the module in the subject line.
Constructor
new(@options)
EXAMPLE
my $d = new UI::Dialog::Backend::ASCII ( title => 'Default Title',
backtitle => 'Backtitle'
);
DESCRIPTION
This is the Class Constructor method. It accepts a list of key => value pairs and uses them as
the defaults when interacting with the various widgets.
RETURNS
A blessed object reference of the UI::Dialog::Backend::ASCII class.
OPTIONS
The (...)'s after each option indicate the default for the option.
debug=0,1,2 (0)
literal=0,1 (0)
backtitle="backtitle" ('')
title="title" ('')
nocancel=0,1 (0)
defaultno=0,1 (0)
beepbefore=0,1 (0)
beepafter=0,1 (0)
extra-button=0,1 (0)
extra-label="extralabel" (0)
help-button=0,1 (0)
help-label="helplabel" (0)
maxinput=\d+ (0)
autoclear=0,1 (0)
pager="/usr/bin/pager" ('/usr/bin/pager')
stty="/usr/bin/stty" ('/usr/bin/stty')
Copyright And License
Copyright (C) 2004-2016 Kevin C. Krinke <kevin@krinke.ca>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
perl v5.28.0 2018-10-27 UI::Dialog::Backend::ASCII(3pm)
Description
This backend is intended as a last resort mechanism in that no other dialog variant has been found and so
this, the most absolute of bargain basement dialog variant interfaces, is used instead.
Export
None
Inherits
UI::Dialog::Backend
Name
UI::Dialog::Backend::ASCII - Dialog backend for the native Perl mode of basic text.
See Also
PERLDOC
UI::Dialog
UI::Dialog::Backend
UI::Dialog::Console
MAN FILES
pager(1), less(1), more(1), stty(1)
Synopsis
use UI::Dialog::Backend::ASCII;
my $d = new UI::Dialog::Backend::ASCII ( backtitle => 'Demo',
title => 'Default' );
$d->msgbox( title => 'Welcome!', text => 'Welcome one and all!' );
Widget Methods
yesno()
EXAMPLE
if ($d->yesno( text => 'A binary type question?') ) {
# user pressed yes
} else {
# user pressed no or cancel
}
DESCRIPTION
Present the end user with a message box that has two buttons, yes and no.
RETURNS
TRUE (1) for a response of YES or FALSE (0) for anything else.
msgbox()
EXAMPLE
$d->msgbox( text => 'A simple message' );
DESCRIPTION
Pesent the end user with a message box that has an OK button.
RETURNS
TRUE (1) for a response of OK or FALSE (0) for anything else.
infobox()
EXAMPLE
$d->infobox( text => 'A simple 6 second message.', timeout => 6000 );
DESCRIPTION
Pesent the end user with a message box for a limited duration of time. The timeout is specified
in thousandths of a second, ie: 1000 = 1 second.
RETURNS
TRUE (1) for a response of OK or FALSE (0) for anything else.
password()
EXAMPLE
my $string = $d->password( text => 'Enter some (hidden) text.' );
DESCRIPTION
Present the end user with a text input field that doesn't reveal the input (except to the
script) and a message.
RETURNS
a SCALAR if the response is OK and FALSE (0) for anything else.
inputbox()
EXAMPLE
my $string = $d->inputbox( text => 'Please enter some text...',
entry => 'this is the input field' );
DESCRIPTION
Present the end user with a text input field and a message.
RETURNS
a SCALAR if the response is OK and FALSE (0) for anything else.
textbox()
EXAMPLE
$d->textbox( path => '/path/to/a/text/file' );
DESCRIPTION
Present the end user with a simple scrolling box containing the contents of the given text
file.
RETURNS
TRUE (1) if the response is OK and FALSE (0) for anything else.
menu()
EXAMPLE
my $selection1 = $d->menu( text => 'Select one:',
list => [ 'tag1', 'item1',
'tag2', 'item2',
'tag3', 'item3' ]
);
DESCRIPTION
Present the user with a selectable list.
RETURNS
a SCALAR of the chosen tag if the response is OK and FALSE (0) for anything else.
checklist()
EXAMPLE
my @selection = $d->checklist( text => 'Select one:',
list => [ 'tag1', [ 'item1', 0 ],
'tag2', [ 'item2', 1 ],
'tag3', [ 'item3', 1 ] ]
);
DESCRIPTION
Present the user with a selectable checklist.
RETURNS
an ARRAY of the chosen tags if the response is OK and FALSE (0) for anything else.
radiolist()
EXAMPLE
my $selection = $d->radiolist( text => 'Select one:',
list => [ 'tag1', [ 'item1', 0 ],
'tag2', [ 'item2', 1 ],
'tag3', [ 'item3', 0 ] ]
);
DESCRIPTION
Present the user with a selectable radiolist.
RETURNS
a SCALAR of the chosen tag if the response is OK and FALSE (0) for anything else.
fselect()
EXAMPLE
my $text = $d->fselect( path => '/path/to/a/file/or/directory' );
DESCRIPTION
Present the user with a file selection widget preset with the given path.
RETURNS
a SCALAR if the response is OK and FALSE (0) for anything else.
dselect()
EXAMPLE
my $text = $d->dselect( path => '/path/to/a/file/or/directory' );
DESCRIPTION
Present the user with a file selection widget preset with the given path. Unlike fselect()
this widget will only return a directory selection.
RETURNS
a SCALAR if the response is OK and FALSE (0) for anything else.
spinner()
EXAMPLE
print STDOUT "spinner... ";
for (20,40,60,80,100) { print $d->spinner(); sleep(1); }
print STDOUT "\bdone.\n";
DESCRIPTION
Return the next character in the spin sequence prefixed with a backspace (\b) character. The
spinner is made up of four ASCII characters; | (pipe), \ (back slash), / (forward slash), -
(hyphen).
The complete sequence is as follows:
|
/
-
\
|
/
-
\
RETURNS
A two character SCALAR.
draw_gauge()
EXAMPLE
foreach my $i (20,40,60,80,100) {
last unless $d->draw_gauge( bar => "-", mark => "|", length => 74,
percent => $i );
sleep(1);
}
foreach my $i (200,500,10000,12000,12345) {
last unless $d->draw_gauge( bar => "-", mark => "|", length => 74,
current => $i, total => 12345 );
sleep(1);
}
DESCRIPTION
Draw a meter bar with a position indicator. You can specify alternate characters for use as the
meter bar itself (default is "-") and the positional marker (default to "|") as well as an
arbitrary length to the bar itself.
There are two different ways to present the bar, either by specifying the percentage to display
or by specifying the current and total values and and the widget will figure out the percentage
for you.
RETURNS
None.
end_gauge()
EXAMPLE
$d->end_gauge();
DESCRIPTION
Simply print a newline for use when the finished with the draw_gauge() widget as that leaves
the cursor at the end of the last line of output.
RETURNS
None.
PNG Icons
