332 lines
10 KiB
Perl
332 lines
10 KiB
Perl
package C4::Templates;
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use strict;
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use warnings;
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use Carp;
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use CGI;
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use List::Util qw/first/;
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# Copyright 2009 Chris Cormack and The Koha Dev Team
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
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# Suite 330, Boston, MA 02111-1307 USA
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=head1 NAME
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Koha::Templates - Object for manipulating templates for use with Koha
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=cut
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use base qw(Class::Accessor);
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use Template;
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use Template::Constants qw( :debug );
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use C4::Languages qw(getTranslatedLanguages get_bidi regex_lang_subtags language_get_description accept_language );
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use C4::Context;
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__PACKAGE__->mk_accessors(qw( theme lang filename htdocs interface vars));
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sub new {
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my $class = shift;
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my $interface = shift;
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my $filename = shift;
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my $tmplbase = shift;
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my $query = @_? shift: undef;
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my $htdocs;
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if ( $interface ne "intranet" ) {
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$htdocs = C4::Context->config('opachtdocs');
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}
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else {
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$htdocs = C4::Context->config('intrahtdocs');
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}
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my ($theme, $lang)= themelanguage( $htdocs, $tmplbase, $interface, $query);
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my $template = Template->new(
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{ EVAL_PERL => 1,
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ABSOLUTE => 1,
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INCLUDE_PATH => [
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"$htdocs/$theme/$lang/includes",
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"$htdocs/$theme/en/includes"
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],
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FILTERS => {},
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}
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) or die Template->error();
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my $self = {
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TEMPLATE => $template,
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VARS => {},
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};
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bless $self, $class;
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$self->theme($theme);
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$self->lang($lang);
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$self->filename($filename);
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$self->htdocs($htdocs);
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$self->interface($interface);
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$self->{VARS}->{"test"} = "value";
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return $self;
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}
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sub output {
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my $self = shift;
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my $vars = shift;
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# my $file = $self->htdocs . '/' . $self->theme .'/'.$self->lang.'/'.$self->filename;
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my $template = $self->{TEMPLATE};
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if ( $self->interface eq 'intranet' ) {
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$vars->{themelang} = '/intranet-tmpl';
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}
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else {
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$vars->{themelang} = '/opac-tmpl';
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}
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$vars->{lang} = $self->lang;
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$vars->{themelang} .= '/' . $self->theme . '/' . $self->lang;
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$vars->{yuipath} =
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( C4::Context->preference("yuipath") eq "local"
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? $vars->{themelang} . "/lib/yui"
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: C4::Context->preference("yuipath") );
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$vars->{interface} =
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( $self->{interface} ne 'intranet' ? '/opac-tmpl' : '/intranet-tmpl' );
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$vars->{theme} = $self->theme;
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$vars->{opaccolorstylesheet} =
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C4::Context->preference('opaccolorstylesheet');
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$vars->{opacsmallimage} = C4::Context->preference('opacsmallimage');
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$vars->{opacstylesheet} = C4::Context->preference('opacstylesheet');
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# add variables set via param to $vars for processing
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# and clean any utf8 mess
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for my $k ( keys %{ $self->{VARS} } ) {
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$vars->{$k} = $self->{VARS}->{$k};
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if (ref($vars->{$k}) eq 'ARRAY'){
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utf8_arrayref($vars->{$k});
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}
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elsif (ref($vars->{$k}) eq 'HASH'){
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utf8_hashref($vars->{$k});
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}
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else {
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utf8::encode($vars->{$k}) if utf8::is_utf8($vars->{$k});
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}
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}
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my $data;
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# binmode( STDOUT, ":utf8" );
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$template->process( $self->filename, $vars, \$data )
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|| die "Template process failed: ", $template->error();
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return $data;
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}
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sub utf8_arrayref {
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my $arrayref = shift;
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foreach my $element (@$arrayref){
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if (ref($element) eq 'ARRAY'){
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utf8_arrayref($element);
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next;
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}
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if (ref($element) eq 'HASH'){
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utf8_hashref($element);
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next;
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}
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utf8::encode($element) if utf8::is_utf8($element);
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}
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}
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sub utf8_hashref {
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my $hashref = shift;
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for my $key (keys %{$hashref}){
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if (ref($hashref->{$key}) eq 'ARRAY'){
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utf8_arrayref($hashref->{$key});
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next;
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}
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if (ref($hashref->{$key}) eq 'HASH'){
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utf8_hashref($hashref->{$key});
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next;
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}
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utf8::encode($hashref->{$key}) if utf8::is_utf8($hashref->{$key});
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}
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}
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# FIXME - this is a horrible hack to cache
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# the current known-good language, temporarily
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# put in place to resolve bug 4403. It is
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# used only by C4::XSLT::XSLTParse4Display;
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# the language is set via the usual call
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# to themelanguage.
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my $_current_language = 'en';
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sub _current_language {
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return $_current_language;
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}
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# wrapper method to allow easier transition from HTML template pro to Template Toolkit
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sub param {
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my $self = shift;
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while (@_) {
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my $key = shift;
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my $val = shift;
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if ( ref($val) eq 'ARRAY' && !scalar @$val ) { $val = undef; }
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elsif ( ref($val) eq 'HASH' && !scalar %$val ) { $val = undef; }
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$self->{VARS}->{$key} = $val;
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}
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}
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=head1 NAME
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C4::Templates - Functions for managing templates
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=head1 FUNCTIONS
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=cut
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# FIXME: this is a quick fix to stop rc1 installing broken
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# Still trying to figure out the correct fix.
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my $path = C4::Context->config('intrahtdocs') . "/prog/en/includes/";
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#---------------------------------------------------------------------------------------------------------
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# FIXME - POD
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sub _get_template_file {
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my ($tmplbase, $interface, $query) = @_;
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my $is_intranet = $interface eq 'intranet';
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my $htdocs = C4::Context->config($is_intranet ? 'intrahtdocs' : 'opachtdocs');
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my ($theme, $lang) = themelanguage($htdocs, $tmplbase, $interface, $query);
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my $opacstylesheet = C4::Context->preference('opacstylesheet');
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# if the template doesn't exist, load the English one as a last resort
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my $filename = "$htdocs/$theme/$lang/modules/$tmplbase";
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unless (-f $filename) {
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$lang = 'en';
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$filename = "$htdocs/$theme/$lang/modules/$tmplbase";
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}
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return ($htdocs, $theme, $lang, $filename);
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}
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sub gettemplate {
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my ( $tmplbase, $interface, $query ) = @_;
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($query) or warn "no query in gettemplate";
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my $path = C4::Context->preference('intranet_includes') || 'includes';
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my $opacstylesheet = C4::Context->preference('opacstylesheet');
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$tmplbase =~ s/\.tmpl$/.tt/;
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my ($htdocs, $theme, $lang, $filename)
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= _get_template_file($tmplbase, $interface, $query);
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my $template = C4::Templates->new($interface, $filename, $tmplbase, $query);
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my $is_intranet = $interface eq 'intranet';
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my $themelang =
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($is_intranet ? '/intranet-tmpl' : '/opac-tmpl') .
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"/$theme/$lang";
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$template->param(
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themelang => $themelang,
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yuipath => C4::Context->preference("yuipath") eq "local"
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? "$themelang/lib/yui"
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: C4::Context->preference("yuipath"),
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interface => $is_intranet ? '/intranet-tmpl' : '/opac-tmpl',
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theme => $theme,
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lang => $lang
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);
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# Bidirectionality
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my $current_lang = regex_lang_subtags($lang);
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my $bidi;
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$bidi = get_bidi($current_lang->{script}) if $current_lang->{script};
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# Languages
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my $languages_loop = getTranslatedLanguages($interface,$theme,$lang);
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my $num_languages_enabled = 0;
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foreach my $lang (@$languages_loop) {
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foreach my $sublang (@{ $lang->{'sublanguages_loop'} }) {
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$num_languages_enabled++ if $sublang->{enabled};
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}
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}
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$template->param(
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languages_loop => $languages_loop,
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bidi => $bidi,
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one_language_enabled => ($num_languages_enabled <= 1) ? 1 : 0, # deal with zero enabled langs as well
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) unless @$languages_loop<2;
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return $template;
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}
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#---------------------------------------------------------------------------------------------------------
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# FIXME - POD
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sub themelanguage {
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my ($htdocs, $tmpl, $interface, $query) = @_;
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($query) or warn "no query in themelanguage";
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# Select a language based on cookie, syspref available languages & browser
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my $is_intranet = $interface eq 'intranet';
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my @languages = split(",", C4::Context->preference(
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$is_intranet ? 'language' : 'opaclanguages'));
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my $lang;
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$lang = $query->cookie('KohaOpacLanguage')
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if defined $query and $query->cookie('KohaOpacLanguage');
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unless ($lang) {
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my $http_accept_language = $ENV{ HTTP_ACCEPT_LANGUAGE };
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$lang = accept_language( $http_accept_language,
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getTranslatedLanguages($interface,'prog') );
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}
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# Ignore a lang not selected in sysprefs
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$lang = undef unless first { $_ eq $lang } @languages;
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# Fall back to English if necessary
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$lang = 'en' unless $lang;
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my @themes = split(" ", C4::Context->preference(
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$is_intranet ? "template" : "opacthemes" ));
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push @themes, 'prog';
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# Try to find first theme for the selected language
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for my $theme (@themes) {
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if ( -e "$htdocs/$theme/$lang/modules/$tmpl" ) {
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$_current_language = $lang;
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return ($theme, $lang)
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}
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}
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# Otherwise, return prog theme in English 'en'
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return ('prog', 'en');
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}
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sub setlanguagecookie {
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my ( $query, $language, $uri ) = @_;
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my $cookie = $query->cookie(
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-name => 'KohaOpacLanguage',
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-value => $language,
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-expires => ''
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);
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print $query->redirect(
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-uri => $uri,
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-cookie => $cookie
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);
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}
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sub getlanguagecookie {
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my ($query) = @_;
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my $lang;
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if ($query->cookie('KohaOpacLanguage')){
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$lang = $query->cookie('KohaOpacLanguage') ;
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}else{
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$lang = $ENV{HTTP_ACCEPT_LANGUAGE};
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}
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$lang = substr($lang, 0, 2);
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return $lang;
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}
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1;
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