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HANJE / Tk-AppWindow-0.19 / lib / Tk / AppWindow / PluginsForm.pm 

            

              
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package Tk::AppWindow::PluginsForm;
=head1 NAME
Tk::AppWindow::PluginsForm - Load and unload plugins.
=cut
use strict;
use warnings;
use vars qw($VERSION);
$VERSION = '0.07';
use base qw(Tk::Derived Tk::Frame);
Construct Tk::Widget 'PluginsForm';
require Tk::LabFrame;
require Tk::Pane;
use Data::Compare;
=head1 DESCRIPTION
This package is a L<Tk::Frame> based megawidget.
It provides a for for loading and unloading plugins
to a L<Tk::AppWindow> based application.
=head1 OPTIONS
=over 4
=item Switch: B<-pluginsext>
A reference to the B<Plugins> extension. Mandatory!
=back
=cut
sub Populate {
        my ($self,$args) = @_;
        my $ext = delete $args->{'-pluginsext'};
        die 'Please specify -pluginsext' unless defined $ext;
         
        $self->SUPER::Populate($args);
        my $lf = $self->LabFrame(
                -label => 'Available plugins',
                -labelside => 'acrosstop',
        )->pack(-expand => 1, -fill => 'both', -padx => 2, -pady => 2);
        my $pane = $lf->Scrolled('Pane',
                -height => 200,
                -scrollbars => 'oe',
                -sticky => 'nsew',
        )->pack(-expand => 1, -fill => 'both');
        my %plugins = ();
        for ($ext->AvailablePlugins) {
                my $plug = $_;
                my $val = $ext->plugExists($plug);
                $plugins{$plug} = \$val;
                my $f = $pane->Frame(
                        -borderwidth => 2,
                        -relief => 'groove',
                )->pack(-fill => 'x', -padx => 2, -pady => 2);
                $f->Checkbutton(
# TODO reinstate this after bugfix with plug loading after main loop
                        -command => sub {
                                if ($val) {
                                        $ext->plugLoad($plug);
                                        $self->after(10, sub { $val = '' unless $ext->plugExists($plug) });
                                } else {
                                        $ext->plugUnload($plug);
                                        $self->after(10, sub { $val = '' if $ext->plugExists($plug) });
                                }
                        },
                        -variable => \$val,
                        -text => $plug
                )->pack(-padx => 2, -pady => 2, -anchor => 'w');
                $f->Label(
                        -text => $ext->plugDescription($plug),
                        -justify => 'left',
                )->pack(-padx => 2, -pady => 2, -anchor => 'w');
        }
        $self->{PLUGINS} = \%plugins;
        my $bf = $self->Frame->pack(-fill => 'x');
        $bf->Button(
                -text => 'Select all',
                -command => ['LoadAll', $self],
        )->pack(-side => 'left', -padx => 2, -pady => 2);
        $bf->Button(
                -text => 'Select none',
                -command => ['UnloadAll', $self],
        )->pack(-side => 'left', -padx => 2, -pady => 2);
        $self->ConfigSpecs(
                -pluginsext => ['PASSIVE', undef, undef, $ext],
                DEFAULT => [ $self ],
        );
}
#sub Apply {
#       my $self = shift;
#       my $ext = $self->cget('-pluginsext');
#       my @current = $ext->plugList;
#       my @new = ();
#       my $plugs = $self->{PLUGINS};
#       for (sort keys %$plugs) {
#               my $var = $plugs->{$_};
#               push @new, $_ if $$var;
#       }
#       unless (Compare(\@current, \@new)) {
#               $ext->SavePlugList(@new);
#               my $name = $ext->configGet('-appname');
#               $ext->popMessage("Please restart $name", 'dialog-warning');
#       }
#}
sub LoadAll {
        my $self = shift;
        my $ext = $self->cget('-pluginsext');
        my $plugins = $self->{PLUGINS};
        for (sort keys %$plugins) {
                my $plug = $_;
#               my $val = $plugins->{$plug};
#               $$val = 1;
# TODO reinstate this after bugfix with plug loading after main loop
                $ext->plugLoad($plug);
                $self->after(10, sub {
                        my $v = $plugins->{$plug};
                        if ($ext->plugExists($plug)) {
                                $$v = 1
                        } else {
                                $$v = ''
                        }
                });
        }
}
sub UnloadAll {
        my $self = shift;
        my $ext = $self->cget('-pluginsext');
        my $plugins = $self->{PLUGINS};
        for (sort keys %$plugins) {
                my $plug = $_;
#               my $val = $plugins->{$plug};
#               $$val = '';
# TODO reinstate this after bugfix with plug loading after main loop
                $ext->plugUnload($plug);
                $self->after(10, sub {
                        my $v = $plugins->{$plug};
                        if ($ext->plugExists($plug)) {
                                $$v = 1
                        } else {
                                $$v = ''
                        }
                });
        }
}
=head1 AUTHOR
Hans Jeuken (hanje at cpan dot org)
=head1 BUGS
Unknown. If you find any, please contact the author.
=head1 SEE ALSO
=over 4
=item L<Tk::AppWindow::Ext::Plugins>
=back
=cut
1;