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style "font"
{
  fontset = "-*-*-medium-r-normal-*-8-*-*-*-*-*-iso8859-1,*-r-*"
  xthickness = 1
  ythickness = 1
}

style "red" = "font"
{
  bg[NORMAL] = { 1.0, 0, 0 }
  bg[PRELIGHT] = { 0.9, 0, 0 }
}
style "darkred" = "font"
{
  bg[NORMAL] = { 0.7, 0, 0 }
  bg[PRELIGHT] = { 0.6, 0, 0 }
}
style "green" = "font"
{
  bg[NORMAL] = { 0, 1.0, 0 }
  bg[PRELIGHT] = { 0, 0.9, 0 }
  fg[NORMAL] = { 0, 0, 0 }
}
style "blue" = "font"
{
  bg[NORMAL] = { 0, 0, 1.0 }
  bg[PRELIGHT] = { 0, 0, 0.9 }
}
style "white" = "font"
{
  bg[NORMAL] = { 1.0, 1.0, 1.0 }
  bg[PRELIGHT] = { 0.67, 0.67, 0.67 }
  fg[NORMAL] = { 0, 0, 0 }
}

widget "*Linux*"      style "red" 
widget "*Ext2*"       style "red" 
widget "*Journalised FS*"   style "darkred" 
widget "*Linux swap*" style "green"
widget "*Swap*"       style "green"
widget "*FAT*"        style "blue"
widget "*Windows*"    style "blue"
widget "*SunOS*"      style "blue"
widget "*NTFS*"       style "blue"
widget "*Empty*"      style "white"
widget "*Other*"      style "font"
'#n112'>112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425
package interactive; # $Id$

use diagnostics;
use strict;

#-######################################################################################
#- misc imports
#-######################################################################################
use MDK::Common::Func;
use common;

#- minimal example using interactive:
#
#- > use lib qw(/usr/lib/libDrakX);
#- > use interactive;
#- > my $in = interactive->vnew;
#- > $in->ask_okcancel('title', 'question');
#- > $in->exit;

#- ask_from_entries takes:
#-  val      => reference to the value
#-  label    => description
#-  icon     => icon to put before the description
#-  help     => tooltip
#-  advanced => wether it is shown in by default or only in advanced mode
#-  disabled => function returning wether it should be disabled (grayed)
#-  gtk      => gtk preferences
#-  type     => 
#-     button => (with clicked or clicked_may_quit)
#-               (type defaults to button if clicked or clicked_may_quit is there)
#-               (val need not be a reference) (if clicked_may_quit return true, it's as if "Ok" was pressed)
#-     label => (val need not be a reference) (type defaults to label if val is not a reference) 
#-     bool (with text)
#-     range (with min, max)
#-     combo (with list, not_edit, format)
#-     list (with list, icon2f (aka icon), separator (aka tree), format (aka pre_format function),
#-           help can be a hash or a function,
#-           tree_expanded boolean telling wether the tree should be wide open by default
#-           quit_if_double_click boolean
#-           allow_empty_list disables the special cases for 0 and 1 element lists)
#-     entry (the default) (with hidden)
#
#- heritate from this class and you'll get all made interactivity for same steps.
#- for this you need to provide
#- - ask_from_listW(o, title, messages, arrayref, default) returns one string of arrayref
#-
#- where
#- - o is the object
#- - title is a string
#- - messages is an refarray of strings
#- - default is an optional string (default is in arrayref)
#- - arrayref is an arrayref of strings
#- - arrayref2 contains booleans telling the default state,
#-
#- ask_from_list and ask_from_list_ are wrappers around ask_from_biglist and ask_from_smalllist
#-
#- ask_from_list_ just translate arrayref before calling ask_from_list and untranslate the result
#-
#- ask_from_listW should handle differently small lists and big ones.
#-


#-######################################################################################
#- OO Stuff
#-######################################################################################
sub new($) {
    my ($type) = @_;

    bless {}, ref $type || $type;
}

sub vnew {
    my ($_type, $su, $icon) = @_;
    $su = $su eq "su";
    if ($ENV{INTERACTIVE_HTTP}) {
	require interactive::http;
	return interactive::http->new;
    }
    require c;
    if ($su) {
	$ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}";
	$su = '' if $::testing || $ENV{TESTING};
    }
    if ($ENV{DISPLAY} && system('/usr/X11R6/bin/xtest') == 0) {
	if ($su && $>) {
	    if (fuzzy_pidofs(qr/\bkwin\b/) > 0) {
		exec("kdesu", "-c", "$0 @ARGV") or die N("kdesu missing");
	    } else {
		exec { 'consolehelper' } $0, @ARGV or die N("consolehelper missing");
	    }
	}
	eval { require interactive::gtk };
	if (!$@) {
	    my $o = interactive::gtk->new;
	    if ($icon && $icon ne 'default' && !$::isWizard) { $o->{icon} = $icon } else { undef $o->{icon} }
	    return $o;
	}
    } else {
	if ($su && $>) {
	    exec { 'consolehelper' } $0, @ARGV or die N("consolehelper missing");
	}
    }

    if ($su && $>) {
	die "you must be root to run this program";
    }
    require 'log.pm'; #- "require log" causes some pb, perl thinking that "log" is the log() function
    undef *log::l;
    *log::l = sub {}; # otherwise, it will bother us :(
    require interactive::newt;
    interactive::newt->new;
}

sub enter_console {}
sub leave_console {}
sub suspend {}
sub resume {}
sub end {}
sub exit { exit($_[0]) }

#-######################################################################################
#- Interactive functions
#-######################################################################################
sub ask_warn {
    my ($o, $title, $message) = @_;
    local $::isWizard = 0;
    ask_from_listf_no_check($o, $title, $message, undef, [ N("Ok") ]);
}

sub ask_yesorno {
    my ($o, $title, $message, $def, $help) = @_;
    ask_from_list_($o, $title, $message, [ N_("Yes"), N_("No") ], $def ? "Yes" : "No", $help) eq "Yes";
}

sub ask_okcancel {
    my ($o, $title, $message, $def, $help) = @_;

    if ($::isWizard) {
	$::no_separator = 1;
    	$o->ask_from_no_check({ title => $title, messages => $message, focus_cancel => !$def }, []);
    } else {
	ask_from_list_($o, $title, $message, [ N_("Ok"), N_("Cancel") ], $def ? "Ok" : "Cancel", $help) eq "Ok";
    }
}

sub ask_file {
    my ($o, $title, $dir) = @_;
    $o->ask_fileW($title, $dir);
}
sub ask_fileW {
    my ($o, $title, $_dir) = @_;
    $o->ask_from_entry($title, N("Choose a file"));
}

sub ask_from_list {
    my ($o, $title, $message, $l, $def, $help) = @_;
    ask_from_listf($o, $title, $message, undef, $l, $def, $help);
}

sub ask_from_list_ {
    my ($o, $title, $message, $l, $def, $help) = @_;
    ask_from_listf($o, $title, $message, sub { translate($_[0]) }, $l, $def, $help);
}

sub ask_from_listf_ {
    my ($o, $title, $message, $f, $l, $def, $help) = @_;
    ask_from_listf($o, $title, $message, sub { translate($f->(@_)) }, $l, $def, $help);
}
sub ask_from_listf {
    my ($_o, $_title, $_message, $_f, $l, $_def, $_help) = @_;
    @$l == 0 and die "ask_from_list: empty list\n" . backtrace();
    @$l == 1 and return $l->[0];
    goto &ask_from_listf_no_check;
}

sub ask_from_listf_no_check {
    my ($o, $title, $message, $f, $l, $def, $help) = @_;

    if (@$l <= 2 && !$::isWizard) {
	my ($ok, $cancel) = map { $_ && may_apply($f, $_) } @$l;
	if (length "$ok$cancel" < 70) {
	    my $ret = eval {
		ask_from_no_check($o, 
				  { title => $title, messages => $message, ok => $ok, 
				    if_($cancel, cancel => $cancel, focus_cancel => $def eq $l->[1]) }, []
				 ) ? $l->[0] : $l->[1];
	    };
	    die if $@ && $@ !~ /^wizcancel/;
	    return $@ ? undef : $ret;
	}
    }
    ask_from($o, $title, $message, [ { val => \$def, type => 'list', list => $l, help => $help, format => $f } ]) && $def;
}

sub ask_from_treelist {
    my ($o, $title, $message, $separator, $l, $def) = @_;
    ask_from_treelistf($o, $title, $message, $separator, undef, $l, $def);
}
sub ask_from_treelist_ {
    my ($o, $title, $message, $separator, $l, $def) = @_;
    my $transl = sub { join '|', map { translate($_) } split(quotemeta($separator), $_[0]) }; 
    ask_from_treelistf($o, $title, $message, $separator, $transl, $l, $def);
}
sub ask_from_treelistf {
    my ($o, $title, $message, $separator, $f, $l, $def) = @_;
    ask_from($o, $title, $message, [ { val => \$def, separator => $separator, list => $l, format => $f, sort => 1 } ]) or return;
    $def;
}

sub ask_many_from_list {
    my ($o, $title, $message, @l) = @_;
    @l = grep { @{$_->{list}} } @l or return '';
    foreach my $h (@l) {
	$h->{e}{$_} = {
	    text => may_apply($h->{label}, $_),
	    val => $h->{val} ? $h->{val}->($_) : do {
		my $i =
		  $h->{value} ? $h->{value}->($_) : 
		    $h->{values} ? member($_, @{$h->{values}}) : 0;
		\$i;
	    },
	    type => 'bool',
	    help => may_apply($h->{help}, $_, ''),
	    icon => may_apply($h->{icon2f}, $_, ''),
	} foreach @{$h->{list}};
	if ($h->{sort}) {
	    $h->{list} = [ sort { $h->{e}{$a}{text} cmp $h->{e}{$b}{text} } @{$h->{list}} ];
	}
    }
    $o->ask_from($title, $message, [ map { my $h = $_; map { $h->{e}{$_} } @{$h->{list}} } @l ]) or return;

    @l = map {
	my $h = $_;
	[ grep { ${$h->{e}{$_}{val}} } @{$h->{list}} ];
    } @l;
    wantarray() ? @l : $l[0];
}

sub ask_from_entry {
    my ($o, $title, $message, %callback) = @_;
    first(ask_from_entries($o, $title, $message, [''], %callback));
}
sub ask_from_entries {
    my ($o, $title, $message, $l, %callback) = @_;

    my @l = map { my $i = ''; { label => $_, val => \$i } } @$l;

    $o->ask_from($title, $message, \@l, %callback) ?
      map { ${$_->{val}} } @l :
      undef;
}

sub ask_from__add_modify_remove {
    my ($o, $title, $message, $l, %callback) = @_;
    die "ask_from__add_modify_remove only handles one item" if @$l != 1;

    $callback{$_} or internal_error("missing callback $_") foreach qw(Add Modify Remove);

    if ($o->can('ask_from__add_modify_removeW')) {
	$o->ask_from__add_modify_removeW($title, $message, $l, %callback);
    } else {
	my $e = $l->[0];
	my $chosen_element;
	put_in_hash($e, { allow_empty_list => 1, val => \$chosen_element, type => 'list' });

	while (1) {
	    my $continue;
	    my @l = (@$l, 
		     map { my $s = $_; { val => translate($_), clicked_may_quit => sub { 
					     my $r = $callback{$s}->($chosen_element);
					     defined $r or return;
					     $continue = 1;
					 } } }
		     N_("Add"), if_(@{$e->{list}} > 0, N_("Modify"), N_("Remove")));
	    $o->ask_from_({ title => $title, messages => $message, callbacks => \%callback }, \@l) or return;
	    return if !$continue;
	}
    }
}


#- can get a hash of callback: focus_out changed and complete
#- moreove if you pass a hash with a field list -> combo
#- if you pass a hash with a field hidden -> emulate stty -echo
sub ask_from {
    my ($o, $title, $message, $l, %callback) = @_;
    ask_from_($o, { title => $title, messages => $message, callbacks => \%callback }, $l);
}


sub ask_from_normalize {
    my ($_o, $common, $l) = @_;

    ref($l) eq 'ARRAY' or internal_error('ask_from_normalize');
    foreach my $e (@$l) {
	if (my $li = $e->{list}) {
	    ref($e->{val}) =~ /SCALAR|REF/ or internal_error($e->{val} ? "field {val} must be a reference (it is $e->{val})" : "field {val} is mandatory"); #-#
	    if ($e->{sort} || @$li > 10 && !exists $e->{sort}) {
		my @l2 = map { may_apply($e->{format}, $_) } @$li;
		my @places = sort { $l2[$a] cmp $l2[$b] } 0 .. $#l2;
		$e->{list} = $li = [ map { $li->[$_] } @places ];
	    }
	    $e->{type} = 'iconlist' if $e->{icon2f};
	    $e->{type} = 'treelist' if $e->{separator};
	    add2hash_($e, { not_edit => 1 });
	    $e->{type} ||= 'combo';

	    if (!$e->{not_edit}) {
		die q(when using "not_edit" you must use strings, not a data structure) if ref ${$e->{val}} || any { ref $_ } @$li;
	    }
	    if ($e->{type} ne 'combo' || $e->{not_edit}) {
		${$e->{val}} = $li->[0] if !member(may_apply($e->{format}, ${$e->{val}}), map { may_apply($e->{format}, $_) } @$li);
	    }
	} elsif ($e->{type} eq 'range') {
	    $e->{min} <= $e->{max} or die "bad range min $e->{min} > max $e->{max} (called from " . join(':', caller()) . ")";
	    ${$e->{val}} = max($e->{min}, min(${$e->{val}}, $e->{max}));
	} elsif ($e->{type} eq 'button' || $e->{clicked} || $e->{clicked_may_quit}) {
	    $e->{type} = 'button';
	    $e->{clicked_may_quit} ||= $e->{clicked} ? sub { $e->{clicked}(); 0 } : sub {};	    
	    $e->{val} = \ (my $_v = $e->{val}) if !ref($e->{val});
	} elsif ($e->{type} eq 'label' || !ref($e->{val})) {
	    $e->{type} = 'label';
	    $e->{val} = \ (my $_v = $e->{val}) if !ref($e->{val});
	} else {
	    $e->{type} ||= 'entry';
	}
	$e->{disabled} ||= sub { 0 };
    }

    #- don't display empty lists and one element lists
    @$l = grep { 
	if ($_->{list} && $_->{not_edit} && !$_->{allow_empty_list}) {
	    if (@{$_->{list}} == ()) {
		eval {
		    require 'log.pm'; #- "require log" causes some pb, perl thinking that "log" is the log() function
		    log::l("ask_from_normalize: empty list for $_->{label}\n" . backtrace());
		};
	    }
	    @{$_->{list}} > 1;
	} else {
	    1;
	}
    } @$l;

    if (!$common->{title} && $::isStandalone) {
	($common->{title} = $0) =~ s|.*/||;
    }
    $common->{advanced_label} ||= N("Advanced");
    $common->{advanced_label_close} ||= N("Basic");
    $common->{$_} = [ deref($common->{$_}) ] foreach qw(messages advanced_messages);
    add2hash_($common->{callbacks} ||= {}, { changed => sub {}, focus_out => sub {}, complete => sub { 0 }, canceled => sub { 0 }, advanced => sub {} });
}

sub ask_from_ {
    my ($o, $common, $l) = @_;
    ask_from_normalize($o, $common, $l);
    @$l or return 1;
    $common->{cancel} = '' if !defined wantarray();
    ask_from_real($o, $common, $l);
}
sub ask_from_no_check {
    my ($o, $common, $l) = @_;
    ask_from_normalize($o, $common, $l);
    $common->{cancel} = '' if !defined wantarray();
    $o->ask_fromW($common, partition { !$_->{advanced} } @$l);
}
sub ask_from_real {
    my ($o, $common, $l) = @_;
    my $v = $o->ask_fromW($common, partition { !$_->{advanced} } @$l);
    %$common = ();
    $v;
}


sub ask_browse_tree_info {
    my ($o, $title, $message, $common) = @_;
    add2hash_($common, { ok => N("Ok"), cancel => N("Cancel") });
    add2hash_($common, { title => $title, message => $message });
    add2hash_($common, { grep_allowed_to_toggle      => sub { @_ },
			 grep_unselected             => sub { grep { $common->{node_state}($_) eq 'unselected' } @_ },
			 check_interactive_to_toggle => sub { 1 },
			 toggle_nodes                => sub {
			     my ($set_state, @nodes) = @_;
			     my $new_state = !$common->{grep_unselected}($nodes[0]) ? 'selected' : 'unselected';
			     $set_state->($_, $new_state) foreach @nodes;
			 },
		       });
    $o->ask_browse_tree_info_refW($common);
}
sub ask_browse_tree_info_refW { #- default definition, do not use with too many items (memory consuming)
    my ($o, $common) = @_;
    my ($l, $v, $h) = ([], [], {});
    $common->{build_tree}(sub {
			      my ($node) = $common->{grep_allowed_to_toggle}(@_);
			      if (my $state = $node && $common->{node_state}($node)) {
				  push @$l, $node;
				  $state eq 'selected' and push @$v, $node;
				  $h->{$node} = $state eq 'selected';
			      }
			  }, 'flat');
    add2hash_($common, { list   => $l, #- TODO interactivity of toggle is missing
			 values => $v,
			 help   => sub { $common->{get_info}($_[0]) },
		       });
    my ($new_v) = $o->ask_many_from_list($common->{title}, $common->{message}, $common) or return;
    $common->{toggle_nodes}(sub {}, grep { ! delete $h->{$_} } @$new_v);
    $common->{toggle_nodes}(sub {}, grep { $h->{$_} } keys %$h);
    1;
}

sub wait_message {
    my ($o, $title, $message, $temp) = @_;

    my $w = $o->wait_messageW($title, [ N("Please wait"), deref($message) ]);
    push @tempory::objects, $w if $temp;
    my $b = before_leaving { $o->wait_message_endW($w) };

    #- enable access through set
    MDK::Common::Func::add_f4before_leaving(sub { $o->wait_message_nextW([ deref($_[1]) ], $w) }, $b, 'set');
    $b;
}

sub kill {}

1;