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