/ 
UI-Dialog-1.12
River stage one • 2 direct dependents • 2 total dependents
/ UI::Dialog

NAME

UI::Dialog - wrapper for various dialog applications.

SYNOPSIS

use UI::Dialog;
my $d = new UI::Dialog ( backtitle => 'Demo', title => 'Default',
                         height => 20, width => 65 , listheight => 5,
                         order => [ 'zenity', 'xdialog' ] );

# Either a Zenity or Xdialog msgbox widget should popup,
# with a preference for Zenity.
$d->msgbox( title => 'Welcome!', text => 'Welcome one and all!' );

ABSTRACT

UI::Dialog is a OOPerl wrapper for the various dialog applications. These dialog backends are currently supported: Zenity, XDialog, GDialog, KDialog, CDialog, and Whiptail. There is also an ASCII backend provided as a last resort interface for the console based dialog variants. UI::Dialog is a class that provides a strict interface to these various backend modules. By using UI:Dialog (with it's imposed limitations on the widgets) you can ensure that your Perl program will function with any available interfaces.

DESCRIPTION

UI::Dialog supports priority ordering of the backend detection process. So if you'd prefer that Xdialog should be used first if available, simply designate the desired order when creating the new object. The default order for detecting and utilization of the backends are as follows: (with DISPLAY env): Zenity, GDialog, XDialog, KDialog (without DISPLAY): CDialog, Whiptail, ASCII

UI::Dialog is the result of a complete re-write of the UDPM CPAN module. This was done to break away from the bad choice of name (UserDialogPerlModule) and to implement a cleaner, more detached, OOPerl interface.

EXPORT

    None

INHERITS

    None

CONSTRUCTOR

new( @options )

EXAMPLE
    my $d = new( title => 'Default Title', backtitle => 'Backtitle',
             width => 65, height => 20, listheight => 5,
             order => [ 'zenity', 'xdialog', 'gdialog' ] );
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 class.

OPTIONS

The (...)'s after each option indicate the default for the option. An * denotes support by all the widget methods on a per-use policy defaulting to the values decided during object creation.

debug = 0,1,2 (0)
order = [ zenity, xdialog, gdialog, kdialog, cdialog, whiptail, ascii ] (as indicated)
PATH = [ /bin, /usr/bin, /usr/local/bin, /opt/bin ] (as indicated)
backtitle = "backtitle" ('') *
title = "title" ('') *
beepbefore = 0,1 (0) *
beepafter = 0,1 (0) *
height = \d+ (20) *
width = \d+ (65) *
listheight = \d+ (5) *
trust-input = 0,1 (0) *

STATE METHODS

state( )

EXAMPLE
    if ($d->state() eq "OK") {
    $d->msgbox( text => "that went well" );
}
DESCRIPTION

    Returns the state of the last dialog widget command. The value can be one of "OK", "CANCEL", "ESC". The return data is based on the exit codes (return value) of the last widget displayed.

RETURNS

    a single SCALAR.

ra( )

EXAMPLE
    my @array = $d->ra();
DESCRIPTION

    Returns the last widget's data as an array.

RETURNS

    an ARRAY.

rs( )

EXAMPLE
    my $string = $d->rs();
DESCRIPTION

    Returns the last widget's data as a (possibly multiline) string.

RETURNS

    a SCALAR.

rv( )

EXAMPLE
    my $string = $d->rv();
DESCRIPTION

    Returns the last widget's exit status, aka: return value.

RETURNS

    a SCALAR.

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.

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.

password( )

EXAMPLE
    my $string = $d->password( text => 'Enter some hidden text.' );
DESCRIPTION

    Present the end user with a text input field, that has hidden input, and a message.

    Note that the GDialog backend will provide a regular inputbox instead of a password box because gdialog doesn't support passwords. GDialog is on it's way to the proverbial software heaven so this isn't a real problem. Use Zenity instead :)

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.

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 @selection1 = $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 $selection1 = $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.

SEE ALSO

PERLDOC
UI::Dialog::GNOME
UI::Dialog::KDE
UI::Dialog::Console
UI::Dialog::Backend
UI::Dialog::Backend::ASCII
UI::Dialog::Backend::CDialog
UI::Dialog::Backend::GDialog
UI::Dialog::Backend::KDialog
UI::Dialog::Backend::Nautilus
UI::Dialog::Backend::Whiptail
UI::Dialog::Backend::XDialog
UI::Dialog::Backend::XOSD
UI::Dialog::Backend::Zenity
MAN FILES
dialog(1), whiptail(1), zenity(1), gdialog(1), Xdialog(1),
osd_cat(1), kdialog(1) and nautilus(1)

SECURITY

While UI::Dialog tries to be secure on your behalf, this is not an easy task and it is advised that you never trust user input when dealing with any libraries (not just UI::Dialog).

UI::Dialog does not allow for strings with shell command substitutions by default. This is achived by replacing all instances of back-tick ` characters with single-quotes ' and if any $() constructs are found, the dollar sign is removed.

To disable this behaviour, pass 'trust-input'=>1 into the module constructor or into any dialog function (such as menu).

See the examples/trust-input.pl sample code for a demonstration.

BUGS

Please email the author with any bug reports. Include the name of the module in the subject line.

AUTHOR

Kevin C. Krinke, <kevin@krinke.ca>

COPYRIGHT AND LICENSE

Copyright (C) 2015  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