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authorSiep Kroonenberg <siepo@cybercomm.nl>2018-04-29 14:52:02 +0000
committerSiep Kroonenberg <siepo@cybercomm.nl>2018-04-29 14:52:02 +0000
commit6ce5ae90e515f240707be95e88cfebfb89408bab (patch)
tree2d4bbdcdf2c2fd4478af69810d33a721f69d7fde /Master/tlpkg/installer/DirSelect.pm
parent15605b628826392909b2230fd4716d43a61df365 (diff)
Browser dialog for TEXDIR
git-svn-id: svn://tug.org/texlive/trunk@47481 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/tlpkg/installer/DirSelect.pm')
-rw-r--r--Master/tlpkg/installer/DirSelect.pm503
1 files changed, 503 insertions, 0 deletions
diff --git a/Master/tlpkg/installer/DirSelect.pm b/Master/tlpkg/installer/DirSelect.pm
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+#===============================================================================
+# Tk/DirSelect.pm
+# Copyright (C) 2000-2001 Kristi Thompson <kristi@kristi.ca>
+# Copyright (C) 2002-2005,2010 Michael Carman <mjcarman@mchsi.com>
+# Last Modified: 2/16/2010
+#===============================================================================
+BEGIN { require 5.004 }
+
+package Tk::DirSelect;
+use Cwd;
+use File::Spec;
+use Tk 800;
+require Tk::Frame;
+require Tk::BrowseEntry;
+require Tk::Button;
+require Tk::Label;
+require Tk::DirTree;
+
+use strict;
+use base 'Tk::Toplevel';
+Construct Tk::Widget 'DirSelect';
+
+use vars qw'$VERSION';
+$VERSION = '1.12';
+
+my %colors;
+my $isWin32;
+
+#-------------------------------------------------------------------------------
+# Subroutine : ClassInit()
+# Purpose : Class initialzation.
+# Notes :
+#-------------------------------------------------------------------------------
+sub ClassInit {
+ my ($class, $mw) = @_;
+ $class->SUPER::ClassInit($mw);
+
+ $isWin32 = $^O eq 'MSWin32';
+
+ # Get system colors from a Text widget for use in DirTree
+ my $t = $mw->Text();
+ foreach my $x (qw'-background -selectbackground -selectforeground') {
+ $colors{$x} = $t->cget($x);
+ }
+ $t->destroy();
+}
+
+
+#-------------------------------------------------------------------------------
+# Subroutine : Populate()
+# Purpose : Create the DirSelect widget
+# Notes :
+#-------------------------------------------------------------------------------
+sub Populate {
+ my ($w, $args) = @_;
+ my $directory = delete $args->{-dir} || cwd();
+ my $title = delete $args->{-title} || 'Select Directory';
+
+ $w->withdraw;
+ $w->SUPER::Populate($args);
+ $w->ConfigSpecs(-title => ['METHOD', 'title', 'Title', $title]);
+ $w->bind('<Escape>', sub { $w->{dir} = undef });
+
+ my %f = (
+ drive => $w->Frame->pack(-anchor => 'n', -fill => 'x'),
+ button => $w->Frame->pack(-side => 'bottom', -anchor => 's', -fill => 'x', -ipady => 6),
+ tree => $w->Frame->pack(-fill => 'both', -expand => 1),
+ );
+
+ $w->{tree} = $f{tree}->Scrolled('DirTree',
+ -scrollbars => 'osoe',
+ -selectmode => 'single',
+ -ignoreinvoke => 0,
+ -width => 50,
+ -height => 15,
+ %colors,
+ %$args,
+ )->pack(-fill => 'both', -expand => 1);
+
+ $w->{tree}->configure(-command => sub { $w->{tree}->opencmd($_[0]) });
+ $w->{tree}->configure(-browsecmd => sub { $w->{tree}->anchorClear });
+
+ $f{button}->Button(
+ -width => 7,
+ -text => 'OK',
+ -command => sub { $w->{dir} = $w->{tree}->selectionGet() },
+ )->pack(-side => 'left', -expand => 1);
+
+ $f{button}->Button(
+ -width => 7,
+ -text => 'Cancel',
+ -command => sub { $w->{dir} = undef },
+ )->pack(-side => 'left', -expand => 1);
+
+ if ($isWin32) {
+ $f{drive}->Label(-text => 'Drive:')->pack(-side => 'left');
+ $w->{drive} = $f{drive}->BrowseEntry(
+ -variable => \$w->{selected_drive},
+ -browsecmd => [\&_browse, $w->{tree}],
+ -state => 'readonly',
+ )->pack(-side => 'left', -fill => 'x', -expand => 1);
+
+ if ($Tk::VERSION >= 804) {
+ # widget is readonly, but shouldn't appear disabled
+ for my $e ($w->{drive}->Subwidget('entry')->Subwidget('entry')) {
+ $e->configure(-disabledforeground => $colors{-foreground});
+ $e->configure(-disabledbackground => $colors{-background});
+ }
+ }
+ }
+ else {
+ $f{drive}->destroy;
+ }
+
+ # right-click context menu
+ my $menu = $w->Menu(
+ -tearoff => 0,
+ -menuitems => [
+ [qw/command ~New/, -command => [\&_mkdir , $w]],
+ [qw/command ~Rename/, -command => [\&_rename, $w]],
+ [qw/command ~Delete/, -command => [\&_rmdir, $w]],
+ ],
+ );
+ $menu->bind('<FocusOut>' => sub {$menu->unpost});
+ $w->{tree}->bind('<Button-3>' => [\&_context, $menu, Ev('X'), Ev('Y')]);
+
+ # popup overlay for renaming directories
+ $w->{renameval} = undef;
+ $w->{popup} = $w->Toplevel();
+ $w->{rename} = $w->{popup}->Entry(
+ -relief => 'groove',
+ -borderwidth => 1,
+ )->pack(-fill => 'x', -expand => 1);
+ $w->{popup}->overrideredirect(1);
+ $w->{popup}->withdraw;
+ $w->{rename}->bind('<Escape>', sub {$w->{renameval} = undef});
+ $w->{rename}->bind('<FocusOut>', sub {$w->{renameval} = undef});
+ $w->{rename}->bind('<KeyPress-Return>', sub {$w->{renameval} = $w->{rename}->get});
+
+ return $w;
+}
+
+
+#-------------------------------------------------------------------------------
+# Subroutine : Show()
+# Purpose : Display the DirSelect widget.
+# Notes :
+#-------------------------------------------------------------------------------
+sub Show {
+ my $w = shift;
+ my $dir = shift;
+ my $cwd = cwd();
+ my $focus = $w->focusSave;
+ my $grab = $w->grabSave;
+
+ $dir = $cwd unless defined $dir && -d $dir;
+ chdir($dir);
+
+ if ($isWin32) {
+ # populate the drive list
+ my @drives = _get_volume_info();
+ $w->{drive}->delete(0, 'end');
+ my $startdrive = _drive($dir);
+
+ foreach my $d (@drives) {
+ $w->{drive}->insert('end', $d);
+ if ($startdrive eq _drive($d)) {
+ $w->{selected_drive} = $d;
+ }
+ }
+ }
+
+ # show initial directory
+ _showdir($w->{tree}, $dir);
+
+ $w->Popup(@_); # show widget
+ $w->focus; # seize focus
+ $w->grab; # seize grab
+ $w->waitVariable(\$w->{dir}); # wait for user selection (or cancel)
+ $w->grabRelease; # release grab
+ $w->withdraw; # run and hide
+ $focus->(); # restore prior focus
+ $grab->(); # restore prior grab
+ chdir($cwd) # restore working directory
+ or warn "Could not chdir() back to '$cwd' [$!]\n";
+
+ # HList SelectionGet() behavior changed around Tk 804.025
+ if (ref $w->{dir} eq 'ARRAY') {
+ $w->{dir} = $w->{dir}[0];
+ }
+
+ {
+ local $^W;
+ $w->{dir} .= '/' if ($isWin32 && $w->{dir} =~ /:$/);
+ }
+
+ return $w->{dir};
+}
+
+
+#-------------------------------------------------------------------------------
+# Subroutine : _browse()
+# Purpose : Browse to a mounted filesystem (Win32)
+# Notes :
+#-------------------------------------------------------------------------------
+sub _browse {
+ my ($w, undef, $d) = @_;
+ $d = _drive($d) . '/';
+ chdir($d);
+ _showdir($w, $d);
+
+ # Workaround: Under Win* versions of Perl/Tk, scrollbars have a tendancy
+ # to show up but be disabled.
+ $w->yview(scroll => 1, 'units');
+ $w->update;
+ $w->yview(scroll => -1, 'units');
+}
+
+
+#-------------------------------------------------------------------------------
+# Subroutine : _showdir()
+# Purpose : Show the requested directory
+# Notes :
+#-------------------------------------------------------------------------------
+sub _showdir {
+ my $w = shift;
+ my $dir = shift;
+ $w->delete('all');
+ $w->chdir($dir);
+}
+
+
+#-------------------------------------------------------------------------------
+# Subroutine : _get_volume_info()
+# Purpose : Get volume information (Win32)
+# Notes :
+#-------------------------------------------------------------------------------
+sub _get_volume_info {
+ require Win32API::File;
+
+ my @drivetype = (
+ 'Unknown',
+ 'No root directory',
+ 'Removable disk drive',
+ 'Fixed disk drive',
+ 'Network drive',
+ 'CD-ROM drive',
+ 'RAM Disk',
+ );
+
+ my @drives;
+ foreach my $ld (Win32API::File::getLogicalDrives()) {
+ my $drive = _drive($ld);
+ my $type = $drivetype[Win32API::File::GetDriveType($drive)];
+ my $label;
+
+ Win32API::File::GetVolumeInformation(
+ $drive, $label, [], [], [], [], [], []);
+
+ push @drives, "$drive [$label] $type";
+ }
+
+ return @drives;
+}
+
+
+#-------------------------------------------------------------------------------
+# Subroutine : _drive()
+# Purpose : Get the drive letter (Win32)
+# Notes :
+#-------------------------------------------------------------------------------
+sub _drive {
+ shift =~ /^(\w:)/;
+ return uc $1;
+}
+
+
+#-------------------------------------------------------------------------------
+# Method : _context
+# Purpose : Display the context menu
+# Notes :
+#-------------------------------------------------------------------------------
+sub _context {
+ my ($w, $m, $x, $y) = @_;
+ my $wy = $y - $w->rooty;
+ $w->selectionClear();
+ $w->selectionSet($w->nearest($wy));
+ $m->post($x, $y);
+ $m->focus;
+}
+
+
+#-------------------------------------------------------------------------------
+# Method : _mkdir
+# Purpose : Create a new directory under the current selection
+# Notes :
+#-------------------------------------------------------------------------------
+sub _mkdir {
+ my $w = shift;
+ my $dt = $w->{tree};
+ my ($sel) = $dt->selectionGet();
+
+ my $cwd = Cwd::cwd();
+ if (chdir($sel)) {
+ my $base = 'NewDirectory';
+ my $name = $base;
+ my $i = 1;
+
+ while (-d $name && $i < 1000) {
+ $name = $base . $i++;
+ }
+
+ unless (-d $name) {
+ if (mkdir($name)) {
+ _showdir($dt, $sel);
+ $dt->selectionClear();
+ $dt->selectionSet($sel . '/' . $name);
+ $w->_rename();
+ }
+ else {
+ $w->messageBox(
+ -title => 'Unable to create directory',
+ -message => "The directory '$name' could not be created.\n$!",
+ -icon => 'error',
+ -type => 'OK',
+ );
+ }
+ }
+
+ chdir($cwd);
+ }
+ else {
+ warn "Unable to chdir() for mkdir() [$!]\n";
+ }
+}
+
+
+#-------------------------------------------------------------------------------
+# Method : _rmdir
+# Purpose : Delete the selected directory
+# Notes :
+#-------------------------------------------------------------------------------
+sub _rmdir {
+ my $w = shift;
+ my $dt = $w->{tree};
+ my ($sel) = $dt->selectionGet();
+
+ my @path = File::Spec->splitdir($sel);
+ my $dir = pop @path;
+ my $pdir = File::Spec->catdir(@path);
+
+ my $cwd = Cwd::cwd();
+ if (chdir($pdir)) {
+ if (rmdir($dir)) {
+ _showdir($dt, $pdir);
+ }
+ else {
+ $w->messageBox(
+ -title => 'Unable to delete directory',
+ -message => "The directory '$dir' could not be deleted.\n$!",
+ -icon => 'error',
+ -type => 'OK',
+ );
+ }
+ chdir($cwd);
+ }
+ else {
+ warn "Unable to chdir() for rmdir() [$!]\n";
+ }
+}
+
+#-------------------------------------------------------------------------------
+# Method : _rename
+# Purpose : Rename the selected directory
+# Notes :
+#-------------------------------------------------------------------------------
+sub _rename {
+ my $w = shift;
+ my $dt = $w->{tree};
+ my $popup = $w->{popup};
+ my $entry = $w->{rename};
+ my ($sel) = $dt->selectionGet();
+ my ($x, $y, $x1, $y1) = $dt->infoBbox($sel);
+
+ my @path = File::Spec->splitdir($sel);
+ my $dir = pop @path;
+ my $pdir = File::Spec->catdir(@path);
+
+ $entry->delete(0, 'end');
+ $entry->insert(0, $dir);
+ $entry->selectionRange(0, 'end');
+ $entry->focus;
+
+ my $font = ($entry->configure(-font))[4];
+ my $text = 'ABCDEFGHIGKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 ';
+ my $width = $entry->fontMeasure($font, $text) / length($text);
+ $entry->configure(-width => ($x1 - $x) / $width);
+
+ $popup->Post($dt->rootx + $x, $dt->rooty + $y);
+ $popup->waitVariable(\$w->{renameval});
+ $popup->withdraw;
+
+ if (defined $w->{renameval} && $w->{renameval} ne $dir) {
+ my $cwd = Cwd::cwd();
+
+ if (chdir($pdir)) {
+ unless (rename($dir, $w->{renameval})) {
+ $w->messageBox(
+ -title => 'Unable to rename directory',
+ -message => "The directory '$dir' could not be renamed.\n$!",
+ -icon => 'error',
+ -type => 'OK',
+ );
+ }
+ chdir($cwd);
+ _showdir($dt, $pdir); # rebrowse to update the display
+ }
+ else {
+ warn "Unable to chdir() for rename() [$!]\n";
+ }
+ }
+}
+
+
+1;
+
+__END__
+=pod
+
+=head1 NAME
+
+Tk::DirSelect - Cross-platform directory selection widget.
+
+=head1 SYNOPSIS
+
+ use Tk::DirSelect;
+ my $ds = $mw->DirSelect();
+ my $dir = $ds->Show();
+
+=head1 DESCRIPTION
+
+This module provides a cross-platform directory selection widget. For
+systems running Microsoft Windows, this includes selection of local and
+mapped network drives. A context menu (right-click or E<lt>Button3E<gt>)
+allows the creation, renaming, and deletion of directories while
+browsing.
+
+Note: Perl/Tk 804 added the C<chooseDirectory> method which uses native
+system dialogs where available. (i.e. Windows) If you want a native feel
+for your program, you probably want to use that method instead --
+possibly using this module as a fallback for systems with older versions
+of Tk installed.
+
+=head1 METHODS
+
+=head2 C<DirSelect([-title =E<gt> 'title'], [options])>
+
+Constructs a new DirSelect widget as a child of the invoking object
+(usually a MainWindow).
+
+The title for the widget can be set by specifying C<-title =E<gt>
+'Title'>. Any other options provided will be passed through to the
+DirTree widget that displays directories, so be sure they're appropriate
+(e.g. C<-width>)
+
+=head2 C<Show([directory], [options])>
+
+Displays the DirSelect widget and returns the user selected directory or
+C<undef> if the operation is canceled.
+
+All arguments are optional. The first argument (if defined) is the
+initial directory to display. The default is to display the current
+working directory. Any additional options are passed through to the
+Popup() method. This means that you can do something like
+
+ $ds->Show(undef, -popover => $mw);
+
+to center the dialog over your application.
+
+=head1 DEPENDENCIES
+
+=over 4
+
+=item * Perl 5.004
+
+=item * Tk 800
+
+=item * Win32API::File (under Microsoft Windows only)
+
+=back
+
+=head1 LICENSE AND COPYRIGHT
+
+Copyright 2000-2001 Kristi Thompson <kristi@kristi.ca>
+Copyright 2002-2005,2010 Michael Carman <mjcarman@cpan.org>
+
+This program is free software; you can redistribute it and/or modify it
+under the terms of either: the GNU General Public License as published
+by the Free Software Foundation; or the Artistic License.
+
+See http://dev.perl.org/licenses/ for more information.
+
+=cut