summaryrefslogtreecommitdiff
path: root/Master/tlpkg/tlperl/lib/Tk/DirTree.pm
blob: abdfbdb547d5278e63ca97aca63fb4137731dec6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
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
package Tk::DirTree;
# DirTree -- TixDirTree widget
#
# Derived from DirTree.tcl in Tix 4.1
#
# Chris Dean <ctdean@cogit.com>

use strict;
use vars qw($VERSION);
$VERSION = '4.022';

use Tk;
use Tk::Derived;
use Tk::Tree;
use Cwd;
use DirHandle;
use File::Spec qw();

use base  qw(Tk::Derived Tk::Tree);
use strict;

Construct Tk::Widget 'DirTree';

my $sep = $^O eq 'MSWin32' ? '\\' : '/';

*_fs_encode = eval { require Encode; 1 } ? sub { Encode::encode("iso-8859-1", $_[0]) } : sub { $_[0] };

sub Populate {
    my( $cw, $args ) = @_;

    $cw->SUPER::Populate( $args );

    $cw->ConfigSpecs(
        -dircmd         => [qw/CALLBACK dirCmd DirCmd DirCmd/],
        -showhidden     => [qw/PASSIVE showHidden ShowHidden 0/],
        -image          => [qw/PASSIVE image Image folder/],
        -directory      => [qw/SETMETHOD directory Directory ./],
        -value          => '-directory' );

    $cw->configure( -separator => $sep,
		    -itemtype => 'imagetext',
		  );
}

sub DirCmd {
    my( $w, $dir, $showhidden ) = @_;
    $dir .= $sep if $dir =~ /^[a-z]:$/i and $^O eq 'MSWin32';
    my $h = DirHandle->new( $dir ) or return();
    my @names = grep( $_ ne '.' && $_ ne '..', $h->read );
    @names = grep( ! /^[.]/, @names ) unless $showhidden;
    return( @names );
}

*dircmd = \&DirCmd;

sub fullpath
{
 my ($path) = @_;
 my $cwd = getcwd();
 if (CORE::chdir($path))
  {
   $path = getcwd();
   CORE::chdir($cwd) || die "Cannot cd back to $cwd:$!";
  }
 else
  {
   warn "Cannot cd to $path:$!"
  }
 $path = File::Spec->canonpath($path);
 return $path;
}

sub directory
{
    my ($w,$key,$val) = @_;
    # We need a value for -image, so its being undefined
    # is probably caused by order of handling config defaults
    # so defer it.
    $w->afterIdle([$w, 'set_dir' => $val]);
}

sub set_dir {
    my( $w, $val ) = @_;
    my $fulldir = fullpath( $val );

    my $parent = $sep;
    if ($^O eq 'MSWin32')
     {
      if ($fulldir =~ s/^([a-z]:)//i)
       {
        $parent = $1;
       }
     }
    $w->add_to_tree( $parent, $parent)  unless $w->infoExists($parent);

    my @dirs = ($parent);
    foreach my $name (split( /\Q$sep\E/, $fulldir )) {
        next unless length $name;
        push @dirs, $name;
	my $dir = File::Spec->catfile( @dirs );
        $w->add_to_tree( $dir, $name, $parent )
            unless $w->infoExists( $dir );
        $parent = $dir;
    }

    $w->OpenCmd( $parent );
    $w->setmode( $parent, 'close' );
}
*chdir = \&set_dir;


sub OpenCmd {
    my( $w, $dir ) = @_;

    my $parent = $dir;
    foreach my $name ($w->dirnames( $parent )) {
        next if ($name eq '.' || $name eq '..');
        my $subdir = File::Spec->catfile( $dir, $name );
	$subdir = _fs_encode($subdir);
        next unless -d $subdir;
        if( $w->infoExists( $subdir ) ) {
            $w->show( -entry => $subdir );
        } else {
            $w->add_to_tree( $subdir, $name, $parent );
        }
    }
}

*opencmd = \&OpenCmd;

sub add_to_tree {
    my( $w, $dir, $name, $parent ) = @_;

    my $dir8 = _fs_encode($dir);
    my $image = $w->cget('-image');
    if ( !UNIVERSAL::isa($image, 'Tk::Image') ) {
	$image = $w->Getimage( $image );
    }
    my $mode = 'none';
    $mode = 'open' if $w->has_subdir( $dir );

    my @args = (-image => $image, -text => $name);
    if( $parent ) {             # Add in alphabetical order.
        foreach my $sib ($w->infoChildren( $parent )) {
	    use if $^O ne 'MSWin32', "locale"; # dumps core under Windows under some (japanese?) locales, see http://www.nntp.perl.org/group/perl.cpan.testers/2008/11/msg2550386.html
	    my $sib8 = _fs_encode($sib);
	    if ($sib8 gt $dir8) {
                push @args, (-before => $sib);
                last;
            }
        }
    }

    $w->add( $dir, @args );
    $w->setmode( $dir, $mode );
}

sub has_subdir {
    my( $w, $dir ) = @_;
    foreach my $name ($w->dirnames( $dir )) {
        next if ($name eq '.' || $name eq '..');
        next if ($name =~ /^\.+$/);
        return( 1 ) if -d File::Spec->catfile( $dir, $name );
    }
    return( 0 );
}

sub dirnames {
    my( $w, $dir ) = @_;
    my @names = $w->Callback( '-dircmd', $dir, $w->cget( '-showhidden' ) );
    return( @names );
}

{
    package Tk::DirTreeDialog;
    use base qw(Tk::Toplevel);
    Construct Tk::Widget 'DirTreeDialog';

    sub Populate {
	my($w, $args) = @_;
	$w->{curr_dir} = delete $args->{-initialdir};
	if (!defined $w->{curr_dir}) {
	    require Cwd;
	    $w->{curr_dir} = Cwd::getcwd();
	}
	if (defined $args->{-mustexist}) {
	    die "-mustexist is not yet implemented";
	}
	my $title = $args->{-title} || "Choose directory:";
	delete $args->{-popover};

	$w->title($title);
	$w->{ok} = 0; # flag: "1" means OK, "-1" means cancelled

	$w->transient($w->Parent->toplevel);

	# Create Frame widget before the DirTree widget, so it's always visible
	# if the window gets resized.
	my $f = $w->Frame->pack(-fill => "x", -side => "bottom");

	my $d;
	$d = $w->Scrolled('DirTree',
			  -scrollbars => 'osoe',
			  -width => 35,
			  -height => 20,
			  -selectmode => 'browse',
			  -exportselection => 1,
			  -browsecmd => sub {
			      $w->{curr_dir} = shift;
			  },

			  # With this version of -command a double-click will
			  # select the directory
			  -command   => sub { $w->{ok} = 1 },

			  # With this version of -command a double-click will
			  # open a directory. Selection is only possible with
			  # the Ok button.
			  #-command   => sub { $d->opencmd($_[0]) },
			 )->pack(-fill => "both", -expand => 1);
	# Set the initial directory
	$d->set_dir($w->{curr_dir});

	$f->Button(-text => 'Ok',
		   -command => sub { $w->{ok} =  1 })->pack(-side => 'left');
	$f->Button(-text => 'Cancel',
		   -command => sub { $w->{ok} = -1 })->pack(-side => 'left');
	$w->OnDestroy(sub { $w->{ok} = -1 });
    }

    sub Show {
	my $w = shift;
	my $old_focus = $w->focusSave;
	my $old_grab = $w->grabSave;
	Tk::catch {
	    $w->grab;
	};
	$w->waitVariable(\$w->{ok});
	my $ret = $w->{ok} == 1 ? $w->{curr_dir} : undef;
	$w->grabRelease if Tk::Exists($w);
	&$old_focus;
	&$old_grab;
	$w->destroy if Tk::Exists($w);
	$ret;
    }
}

1;

__END__

#  Copyright (c) 1996, Expert Interface Technologies
#  See the file "license.terms" for information on usage and redistribution
#  of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
#  The file man.macros and some of the macros used by this file are
#  copyrighted: (c) 1990 The Regents of the University of California.
#               (c) 1994-1995 Sun Microsystems, Inc.
#  The license terms of the Tcl/Tk distrobution are in the file
#  license.tcl.