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package UI::Dialog::Screen::Druid;
###############################################################################
# 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
###############################################################################
use 5.006;
use strict;
use warnings;
use constant { TRUE => 1, FALSE => 0 };
BEGIN {
use vars qw($VERSION);
$VERSION = '1.21';
}
use UI::Dialog;
# Example Usage
#
# my $druid = new UI::Dialog::Screen::Druid
# ( dialog => $DIALOG,
# title => 'druid walkthrough'
# );
# $druid->add_yesno_step('bool0',"Boolean 0");
# $druid->add_yesno_step('bool1',"Boolean 1");
# my (%answers) = $druid->perform();
#
sub new {
my ($class, %args) = @_;
unless (exists $args{dialog}) {
$args{dialog} = new UI::Dialog
(
title => (defined $args{title}) ? $args{title} : '',
backtitle => (defined $args{backtitle}) ? $args{backtitle} : '',
height => (defined $args{height}) ? $args{height} : 20,
width => (defined $args{width}) ? $args{width} : 65,
listheight => (defined $args{listheight}) ? $args{listheight} : 5,
order => (defined $args{order}) ? $args{order} : undef,
PATH => (defined $args{PATH}) ? $args{PATH} : undef,
beepbefore => (defined $args{beepbefore}) ? $args{beepbefore} : undef,
beepafter => (defined $args{beepafter}) ? $args{beepafter} : undef,
);
}
$args{performance} = [] unless exists $args{performance};
return bless { %args }, $class;
}
#: not used yet, not sure keys being forced unique isn't too rigid
#
sub __verify_unique_tag {
my ($self,$tag) = @_;
if (grep {m!^\Q$tag\E$!} keys %{$self->{performance}}) {
return FALSE; # exists already, not unique tag
}
# doesn't exist, is unique tag
return TRUE;
}
#: $druid->add_input_step( "key", "Label text", "Default text");
#: Add a text-input step to the performance
#
sub add_input_step {
my ($self,$tag,$text,$default) = @_;
push( @{$self->{performance}},
{ type=>"input",
tag=>$tag,
text=>$text,
default=>defined $default ? $default : '',
}
);
}
#: $druid->add_password_step( "key", "Label text" );
#: Add a password step to the performance
#
sub add_password_step {
my ($self,$tag,$text) = @_;
push( @{$self->{performance}},
{ type=>"password",
tag=>$tag,
text=>$text
}
);
}
#: $druid->add_menu_step( "key", "Label text", [qw|opt1 opt2 op3|] );
#: Add a menu select step to the performance
#
sub add_menu_step {
my ($self,$tag,$text,$options) = @_;
push( @{$self->{performance}},
{ type=>"menu",
tag=>$tag,
text=>$text,
options=>$options
}
);
}
#: $druid->add_yesno_step( "key", "Label text" );
#: Add a yesno step to the performance
#
sub add_yesno_step {
my ($self,$tag,$text) = @_;
push( @{$self->{performance}},
{ type=>"yesno",
tag=>$tag,
text=>$text
}
);
}
#: my (%answers) = $druid->perform();
#: Show the performance! Walk the user to the druid's step :)
#
sub perform {
my ($self) = @_;
my $key = undef;
my %answers = ();
foreach my $step ( @{$self->{performance}} ) {
$key = $step->{tag};
my $r = undef;
# yesno questions
if ($step->{type} eq "yesno") {
$r = $self->{dialog}->yesno
( title => $step->{tag},
text => $step->{text}
);
goto PERFORM_STEP_FAILURE
if $self->{dialog}->state() eq "ESC";
}
# text-input questions
elsif ($step->{type} eq "input") {
my $default = defined $step->{default} ? $step->{default} : '';
foreach my $key (keys %answers) {
my $val = $answers{$key};
if ($default =~ m!\{\{\Q${key}\E\}\}!mg) {
$default =~ s!\{\{\Q${key}\E\}\}!${val}!g;
}
}
foreach my $step (@{$self->{performance}}) {
if (exists $step->{default}) {
my $key = $step->{tag};
my $val = $step->{default};
if ($default =~ m!\{\{\Q${key}\E\}\}!mg) {
$default =~ s!\{\{\Q${key}\E\}\}!${val}!g;
}
}
}
$r = $self->{dialog}->inputbox
( title => $step->{tag},
text => $step->{text},
entry => $default
);
goto PERFORM_STEP_FAILURE
if $self->{dialog}->state() ne "OK";
}
# password questions
elsif ($step->{type} eq "password") {
$r = $self->{dialog}->password
( title => $step->{tag},
text => $step->{text}
);
goto PERFORM_STEP_FAILURE
if $self->{dialog}->state() ne "OK";
}
# menu questions
elsif ($step->{type} eq "menu") {
my @list = ();
my $count = 0;
foreach (@{$step->{options}}) {
$count++;
push(@list,$count,$_);
}
$r = $self->{dialog}->menu
( title => $step->{tag},
text => $step->{text},
list => \@list
);
goto PERFORM_STEP_FAILURE
if $self->{dialog}->state() ne "OK";
$r = $step->{options}[$r-1];
}
$answers{$key} = $r;
}
return wantarray ? %answers : \%answers;
PERFORM_STEP_FAILURE:
my %aborted = (aborted=>1,key=>$key);
return wantarray ? %aborted : \%aborted;
}
1; # END OF UI::Dialog::Screen::Druid
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