- Big Move 1: interactive::* hierarchy

1 files changed, 254 insertions, 0 deletions

diff --git a/perl-install/interactive/newt.pm b/perl-install/interactive/newt.pm
new file mode 100644
index 000000000..da18c198a
--- /dev/null
+++ b/perl-install/interactive/newt.pm
@@ -0,0 +1,254 @@
+package interactivew::newt; # $Id$
+
+use diagnostics;
+use strict;
+use vars qw(@ISA);
+
+@ISA = qw(interactive);
+
+use interactive;
+use common;
+use log;
+use Newt::Newt; #- !! provides Newt and not Newt::Newt
+
+my ($width, $height) = (80, 25);
+my @wait_messages;
+
+sub new() {
+    Newt::Init;
+    Newt::Cls;
+    Newt::SetSuspendCallback;
+    ($width, $height) = Newt::GetScreenSize;
+    open STDERR,">/dev/null" if $::isStandalone && !$::testing;
+    bless {}, $_[0];
+}
+
+sub enter_console { Newt::Suspend }
+sub leave_console { Newt::Resume }
+sub suspend { Newt::Suspend }
+sub resume { Newt::Resume }
+sub end() { Newt::Finished }
+sub exit() { end; exit($_[1]) }
+END { end() }
+
+sub myTextbox {
+    my $allow_scroll = shift;
+
+    my $width = $width - 9;
+    my @l = map { /(.{1,$width})/g } map { split "\n" } @_;
+    my $h = min($height - 13, int @l);
+    my $flag = 1 << 6; 
+    if ($h < @l) {
+	if ($allow_scroll) {
+	    $flag |= 1 << 2; #- NEWT_FLAG_SCROLL
+	} else {
+	    # remove the text, no other way!
+	    @l = @l[0 .. $h-1];
+	}
+    }
+    my $mess = Newt::Component::Textbox(1, 0, my $w = max(map { length } @l) + 1, $h, $flag);
+    $mess->TextboxSetText(join("\n", @_));
+    $mess, $w + 1, $h;
+}
+
+sub separator {
+    my $blank = Newt::Component::Form(\undef, '', 0);
+    $blank->FormSetWidth ($_[0]);
+    $blank->FormSetHeight($_[1]);
+    $blank;
+}
+sub checkval { $_[0] && $_[0] ne ' '  ? '*' : ' ' }
+
+sub ask_fromW {
+    my ($o, $common, $l, $l2) = @_;
+    my $ignore; #-to handle recursivity
+    my $old_focus = -2;
+
+    #-the widgets
+    my (@widgets, $total_size);
+
+    my $set_all = sub {
+	$ignore = 1;
+	$_->{set}->(${$_->{e}{val}}) foreach @widgets;
+#	$_->{w}->set_sensitive(!$_->{e}{disabled}()) foreach @widgets;
+	$ignore = 0;
+    };
+    my $get_all = sub {
+	${$_->{e}{val}} = $_->{get}->() foreach @widgets;
+    };
+    my $create_widget = sub {
+	my ($e, $ind) = @_;
+
+	$e->{type} = 'list' if $e->{type} =~ /(icon|tree)list/;
+
+	#- combo doesn't exist, fallback to a sensible default
+	$e->{type} = $e->{not_edit} ? 'list' : 'entry' if $e->{type} eq 'combo';
+
+	my $changed = sub {
+	    return if $ignore;
+	    return $old_focus++ if $old_focus == -2; #- handle special first case
+	    $get_all->();
+
+	    #- TODO: this is very rough :(
+	    $common->{callbacks}{$old_focus == $ind ? 'changed' : 'focus_out'}->($ind);
+
+	    $set_all->();
+	    $old_focus = $ind;
+	};
+
+	my ($w, $real_w, $set, $get, $expand, $size);
+	if ($e->{type} eq 'bool') {
+	    $w = Newt::Component::Checkbox(-1, -1, $e->{text} || '', checkval(${$e->{val}}), " *");
+	    $set = sub { $w->CheckboxSetValue(checkval($_[0])) };
+	    $get = sub { $w->CheckboxGetValue == ord '*' };
+	} elsif ($e->{type} eq 'button') {
+	    $w = Newt::Component::Button(-1, -1, simplify_string(may_apply($e->{format}, ${$e->{val}})));
+	} elsif ($e->{type} =~ /list/) {
+	    my ($h, $wi) = (@$l == 1 && $height > 30 ? 10 : 5, 20);
+	    my $scroll = @{$e->{list}} > $h ? 1 << 2 : 0;
+	    $size = min(int @{$e->{list}}, $h);
+
+	    $w = Newt::Component::Listbox(-1, -1, $h, $scroll); #- NEWT_FLAG_SCROLL	    
+	    foreach (@{$e->{list}}) {
+		my $t = simplify_string(may_apply($e->{format}, $_));
+		$w->ListboxAddEntry($t, $_);
+		$wi = max($wi, length $t);
+	    }
+	    $w->ListboxSetWidth(min($wi + 3, $width - 7)); # 3 added for the scrollbar (?)
+	    $get = sub { $w->ListboxGetCurrent };
+	    $set = sub {
+		my ($val) = @_;
+		map_index {
+		    $w->ListboxSetCurrent($::i) if $val eq $_;
+		} @{$e->{list}};
+	    };
+	} else {
+	    $w = Newt::Component::Entry(-1, -1, '', 20, ($e->{hidden} && 1 << 11) | 1 << 2);
+	    $get = sub { $w->EntryGetValue };
+	    $set = sub { $w->EntrySet($_[0], 1) };
+	}
+	$total_size += $size || 1;
+
+	#- !! callbacks must be kept otherwise perl will free them !!
+	#- (better handling of addCallback needed)
+
+	{ e => $e, w => $w, real_w => $real_w || $w, expand => $expand, callback => $changed,
+	  get => $get || sub { ${$e->{val}} }, set => $set || sub {} };
+    };
+    @widgets = map_index { $create_widget->($_, $::i) } @$l;
+
+    $_->{w}->addCallback($_->{callback}) foreach @widgets;
+
+    $set_all->();
+
+    my $grid = Newt::Grid::CreateGrid(3, max(1, int @$l));
+    map_index {
+	$grid->GridSetField(0, $::i, 1, ${Newt::Component::Label(-1, -1, $_->{e}{label})}, 0, 0, 1, 0, 1, 0);
+	$grid->GridSetField(1, $::i, 1, ${$_->{real_w}}, 0, 0, 0, 0, 1, 0);
+    } @widgets;
+
+    my $listg = do {
+	my $height = 18;
+	#- use a scrolled window if there is a lot of checkboxes (aka 
+	#- ask_many_from_list) or a lot of widgets in general (aka
+	#- options of a native PostScript printer in printerdrake)
+	#- !! works badly together with list's (lists are one widget, so a
+	#- big list window will not switch to scrollbar mode) :-(
+	if ((((grep { $_->{type} eq 'bool' } @$l) > 6) ||
+             ((@$l) > 3)) && $total_size > $height) {
+	    $grid->GridPlace(1, 1); #- Uh?? otherwise the size allocated is bad
+
+	    my $scroll = Newt::Component::VerticalScrollbar(-1, -1, $height, 9, 10);
+	    my $subf = $scroll->Form('', 0);
+	    $subf->FormSetHeight($height);
+	    $subf->FormAddGrid($grid, 0);
+	    Newt::Grid::HCloseStacked($subf, separator(1, $height), $scroll);
+	} else {
+	    $grid;
+	}
+    };
+    my ($buttons, $ok, $cancel) = Newt::Grid::ButtonBar(simplify_string($common->{ok} || _("Ok")), 
+							if_($common->{cancel}, simplify_string($common->{cancel})));
+
+    my $form = Newt::Component::Form(\undef, '', 0);
+    my $window = Newt::Grid::GridBasicWindow(first(myTextbox(@widgets == 0, @{$common->{messages}})), $listg, $buttons);
+    $window->GridWrappedWindow($common->{title} || '');
+    $form->FormAddGrid($window, 1);
+
+    my $check = sub {
+	my ($f) = @_;
+
+	$get_all->();
+	my ($error, $focus) = $f->();
+	
+	if ($error) {
+	    $set_all->();
+	}
+	!$error;
+    };
+
+    my ($destroyed, $canceled);
+    do {
+	my $r = do {
+	    local $::setstep = 1;
+	    $form->RunForm;
+	};
+	$canceled = $cancel && $$r == $$cancel;
+
+	if (my ($button) = grep { $$r == ${$_->{w}} } @widgets) {
+	    $get_all->();
+	    my $v = do {
+		local $::setstep = 1;
+		$button->{e}{clicked_may_quit}();
+	    };
+	    $form->FormDestroy;
+	    Newt::PopWindow;
+	    return $v || &ask_fromW;
+	}
+    } until ($check->($common->{callbacks}{$canceled ? 'canceled' : 'complete'}));
+
+    $form->FormDestroy;
+    Newt::PopWindow;
+    !$canceled;
+}
+
+
+sub waitbox {
+    my ($title, $messages) = @_;
+    my ($t, $w, $h) = myTextbox(1, @$messages);
+    my $f = Newt::Component::Form(\undef, '', 0);
+    Newt::CenteredWindow($w, $h, $title);
+    $f->FormAddComponent($t);
+    $f->DrawForm;
+    Newt::Refresh;
+    $f->FormDestroy;
+    push @wait_messages, $f;
+    $f;
+}
+
+
+sub wait_messageW {
+    my ($o, $title, $messages) = @_;
+    { form => waitbox($title, $messages), title => $title };
+}
+
+sub wait_message_nextW {
+    my ($o, $messages, $w) = @_;
+    $o->wait_message_endW($w);
+    $o->wait_messageW($w->{title}, $messages);
+}
+sub wait_message_endW {
+    my ($o, $w) = @_;
+    my $wait = pop @wait_messages;
+#    log::l("interactive_newt does not handle none stacked wait-messages") if $w->{form} != $wait;
+    Newt::PopWindow;
+}
+
+sub simplify_string {
+    my ($s) = @_;
+    $s =~ s/\n/ /g;
+    $s = substr($s, 0, 40); #- truncate if too long
+    $s;
+}
+
+1;