[2981] | 1 | ###########################################################################
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| 2 | #
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[17722] | 3 | # PowerPointPlugin.pm -- plugin for importing Microsoft PowerPoint files.
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[2981] | 4 | # (currently only versions 95 and 97)
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| 5 | #
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| 6 | # A component of the Greenstone digital library software
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| 7 | # from the New Zealand Digital Library Project at the
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| 8 | # University of Waikato, New Zealand.
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| 9 | #
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| 10 | # Copyright (C) 2002 New Zealand Digital Library Project
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| 11 | #
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| 12 | # This program is free software; you can redistribute it and/or modify
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| 13 | # it under the terms of the GNU General Public License as published by
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| 14 | # the Free Software Foundation; either version 2 of the License, or
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| 15 | # (at your option) any later version.
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| 16 | #
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| 17 | # This program is distributed in the hope that it will be useful,
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| 18 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 20 | # GNU General Public License for more details.
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| 21 | #
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| 22 | # You should have received a copy of the GNU General Public License
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| 23 | # along with this program; if not, write to the Free Software
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| 24 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 25 | #
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| 26 | ###########################################################################
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| 27 |
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[17722] | 28 | package PowerPointPlugin;
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[2981] | 29 |
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[15872] | 30 | use ConvertBinaryFile;
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| 31 |
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[10254] | 32 | use strict;
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| 33 | no strict 'refs'; # allow filehandles to be variables and viceversa
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[22515] | 34 | no strict 'subs';
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| 35 | use gsprintf 'gsprintf';
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[2981] | 36 |
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[22515] | 37 | # @ISA dynamically configured to be either OpenOfficeConverter or ConvertBinaryFile
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| 38 |
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| 39 | # do not initialise these variables
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| 40 | my $openoffice_ext_installed;
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| 41 | my $openoffice_ext_working;
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[2981] | 42 | sub BEGIN {
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[22515] | 43 | eval("require OpenOfficeConverter");
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| 44 | if ($@) {
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| 45 | # Useful debugging statement if there is a syntax error in OpenOfficeConverter
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| 46 | #print STDERR "$@\n";
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| 47 | @PowerPointPlugin::ISA = ('ConvertBinaryFile');
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| 48 | $openoffice_ext_installed = 0;
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| 49 | $openoffice_ext_working = 0;
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| 50 | }
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| 51 | else {
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| 52 | # Successfully found
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| 53 | $openoffice_ext_installed = 1;
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| 54 | # now check whether it can run soffice
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| 55 | if ($OpenOfficeConverter::openoffice_conversion_available) {
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| 56 | @PowerPointPlugin::ISA = ('OpenOfficeConverter');
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| 57 | $openoffice_ext_working = 1;
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| 58 |
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| 59 | } else {
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| 60 | @PowerPointPlugin::ISA = ('ConvertBinaryFile');
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| 61 | $openoffice_ext_working = 0;
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| 62 | }
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| 63 | }
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[2981] | 64 | }
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| 65 |
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[22515] | 66 | my $windows_convert_to_list =
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[10466] | 67 | [ { 'name' => "auto",
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[15872] | 68 | 'desc' => "{ConvertBinaryFile.convert_to.auto}" },
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[10466] | 69 | { 'name' => "html",
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[15872] | 70 | 'desc' => "{ConvertBinaryFile.convert_to.html}" },
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[10466] | 71 | { 'name' => "text",
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[15872] | 72 | 'desc' => "{ConvertBinaryFile.convert_to.text}" },
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[10466] | 73 | { 'name' => "pagedimg_jpg",
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[15872] | 74 | 'desc' => "{ConvertBinaryFile.convert_to.pagedimg_jpg}" },
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[10466] | 75 | { 'name' => "pagedimg_gif",
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[15872] | 76 | 'desc' => "{ConvertBinaryFile.convert_to.pagedimg_gif}" },
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[10466] | 77 | { 'name' => "pagedimg_png",
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[15872] | 78 | 'desc' => "{ConvertBinaryFile.convert_to.pagedimg_png}" }
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[10466] | 79 | ];
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| 80 |
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[6408] | 81 | my $arguments =
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| 82 | [ { 'name' => "process_exp",
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[15872] | 83 | 'desc' => "{BasePlugin.process_exp}",
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[6408] | 84 | 'type' => "regexp",
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| 85 | 'reqd' => "no",
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[10275] | 86 | 'deft' => &get_default_process_exp()}
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[6408] | 87 | ];
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| 88 |
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[22515] | 89 | my $opt_windows_args =
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| 90 | [ { 'name' => "convert_to",
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| 91 | 'desc' => "{ConvertBinaryFile.convert_to}",
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| 92 | 'type' => "enum",
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| 93 | 'reqd' => "yes",
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| 94 | 'list' => $windows_convert_to_list,
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| 95 | 'deft' => "html" },
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| 96 | { 'name' => "windows_scripting",
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| 97 | 'desc' => "{PowerPointPlugin.windows_scripting}",
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| 98 | 'type' => "flag",
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| 99 | 'reqd' => "no" }
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| 100 | ];
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| 101 |
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| 102 | my $opt_openoffice_args =
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| 103 | [ { 'name' => "openoffice_scripting",
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| 104 | 'desc' => "{OpenOfficeConverter.openoffice_scripting}",
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| 105 | 'type' => "flag",
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| 106 | 'reqd' => "no" } ];
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| 107 |
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[17722] | 108 | my $options = { 'name' => "PowerPointPlugin",
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[17744] | 109 | 'desc' => "{PowerPointPlugin.desc}",
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[6408] | 110 | 'abstract' => "no",
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[11679] | 111 | 'inherits' => "yes",
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[15114] | 112 | 'srcreplaceable' => "yes", # Source docs in PPT format can be replaced with GS-generated html
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[6408] | 113 | 'args' => $arguments };
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[4744] | 114 |
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[2981] | 115 | sub new {
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[10218] | 116 | my ($class) = shift (@_);
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| 117 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 118 | push(@$pluginlist, $class);
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[2981] | 119 |
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[22515] | 120 | if ($openoffice_ext_installed) {
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| 121 | print STDERR "PowerPointPlugin: OpenOffice Extension to Greenstone detected\n";
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| 122 | if ($openoffice_ext_working) {
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| 123 | print STDERR "... and it appears to be working\n";
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| 124 | } else {
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| 125 | print STDERR "... but it appears to be broken\n";
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| 126 | &gsprintf(STDERR, "OpenOfficeConverter: {OpenOfficeConverter.noconversionavailable} ({OpenOfficeConverter.$OpenOfficeConverter::no_openoffice_conversion_reason})\n");
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| 127 | }
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| 128 | }
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| 129 |
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[10275] | 130 | if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
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[22515] | 131 | push(@$arguments,@$opt_windows_args);
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[10275] | 132 | }
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[22515] | 133 | if ($openoffice_ext_working) {
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| 134 | push(@$arguments,@$opt_openoffice_args);
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| 135 | }
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| 136 |
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[15872] | 137 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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| 138 | push(@{$hashArgOptLists->{"OptList"}},$options);
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[10218] | 139 |
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[10427] | 140 |
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[22515] | 141 | my $self = {};
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| 142 |
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| 143 | if ($openoffice_ext_working) {
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| 144 | $self = new OpenOfficeConverter($pluginlist, $inputargs, $hashArgOptLists);
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| 145 | }
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| 146 | else {
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| 147 | $self = new ConvertBinaryFile($pluginlist, $inputargs, $hashArgOptLists);
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| 148 | }
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[10275] | 149 |
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[10580] | 150 | if ($self->{'info_only'}) {
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| 151 | # don't worry about any options etc
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| 152 | return bless $self, $class;
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| 153 | }
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| 154 |
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[15872] | 155 | $self->{'filename_extension'} = "ppt";
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| 156 | $self->{'file_type'} = "PPT";
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| 157 |
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[22597] | 158 | if ($self->{'convert_to'} eq "auto") {
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| 159 | if ($self->{'windows_scripting'}) {
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| 160 | $self->{'convert_to'} = "pagedimg_jpg";
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| 161 | }
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| 162 | else {
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| 163 | $self->{'convert_to'} = "html";
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| 164 | }
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| 165 | }
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| 166 |
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| 167 | my $outhandle = $self->{'outhandle'};
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| 168 |
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[22515] | 169 | # can't have windows_scripting and openoffice_scripting at the same time
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| 170 | if ($self->{'windows_scripting'} && $self->{'openoffice_scripting'}) {
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| 171 | print $outhandle "Warning: Cannot have -windows_scripting and -openoffice_scripting\n";
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| 172 | print $outhandle " on at the same time. Defaulting to -windows_scripting\n";
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| 173 | $self->{'openoffice_scripting'} = 0;
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| 174 | }
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| 175 |
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[15872] | 176 | #these are passed through to gsConvert.pl by ConvertBinaryFile.pm
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[10491] | 177 | $self->{'convert_options'} = "-windows_scripting" if $self->{'windows_scripting'};
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[22515] | 178 | $self->{'convert_options'} = "-openoffice_scripting" if $self->{'openoffice_scripting'};
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[22597] | 179 |
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| 180 | # set convert_to_plugin and convert_to_ext
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| 181 | $self->ConvertBinaryFile::set_standard_convert_settings();
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| 182 |
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| 183 | my $secondary_plugin_name = $self->{'convert_to_plugin'};
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[10275] | 184 | my $secondary_plugin_options = $self->{'secondary_plugin_options'};
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[10218] | 185 |
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[22597] | 186 | if (!defined $secondary_plugin_options->{$secondary_plugin_name}) {
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| 187 | $secondary_plugin_options->{$secondary_plugin_name} = [];
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[10275] | 188 | }
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[22597] | 189 | my $specific_options = $secondary_plugin_options->{$secondary_plugin_name};
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| 190 |
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| 191 | push(@$specific_options, "-file_rename_method", "none");
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| 192 | push(@$specific_options, "-extract_language") if $self->{'extract_language'};
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| 193 |
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| 194 | if ($secondary_plugin_name eq "HTMLPlugin") {
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| 195 | push(@$specific_options, "-processing_tmp_files");
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| 196 | push(@$specific_options,"-metadata_fields","Title,GENERATOR,date,author<Creator>");
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[18406] | 197 | }
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[22597] | 198 | elsif ($secondary_plugin_name eq "PagedImagePlugin") {
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| 199 | push(@$specific_options, "-processing_tmp_files");
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[21958] | 200 | #is this true??
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[22597] | 201 | push(@$specific_options,"-input_encoding", "utf8");
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[15903] | 202 | }
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[2981] | 203 |
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[10275] | 204 | $self = bless $self, $class;
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| 205 |
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[10427] | 206 | $self->load_secondary_plugins($class,$secondary_plugin_options,$hashArgOptLists);
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[10275] | 207 | return $self;
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[2981] | 208 | }
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| 209 |
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| 210 | sub get_default_process_exp {
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| 211 | my $self = shift (@_);
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| 212 | return q^(?i)\.ppt$^;
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| 213 | }
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[10275] | 214 |
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[2981] | 215 | 1;
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[10275] | 216 |
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