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package JWebmail::Plugin::I18N2;
use Mojo::Base 'Mojolicious::Plugin';
package JWebmail::Plugin::I18N2::Translator {
use Mojo::File;
use Config::Tiny;
sub new {
my $cls = shift;
my $conf = @_ == 1 ? shift : {@_};
my $self = {};
my @languages = keys %{$conf->{languages} // {}};
unless (@languages) {
@languages = map { s|^.*/(..)\.lang$|$1|r } glob("'$conf->{directory}/*.lang'");
}
# load languages
for my $l (@languages) {
if (my $dict = __loadi18n($conf->{directory}, $l)) {
$self->{$l} = $dict;
}
}
return bless $self, $cls;
}
sub languages {
my $self = shift;
if (@_) {
return exists $self->{$_[0]};
}
return wantarray ? sort keys $self->%* : scalar keys $self->%*;
}
sub translate {
my $self = shift;
my $lang = shift;
my $word = shift;
return $self->{$lang}{$word};
}
sub __loadi18n {
my $langsubdir = shift;
my $lang = shift;
my $langFile = "$langsubdir/$lang.lang";
my $TXT;
if ( -f $langFile ) {
$TXT = Config::Tiny->read($langFile, 'utf8')->{'_'};
if ($@) {
die "error reading file $langFile: $@";
}
}
return $TXT;
}
}
package JWebmail::Plugin::I18N2::Match {
use Mojo::Base 'Mojolicious::Routes::Match';
has '_i18n2_stash';
sub __add_option_no_override {
my $key = shift;
my $value = shift;
if (ref $_[0] eq 'HASH' && @_ == 1) {
$_[0]->{$key} ||= $value;
}
elsif (ref $_[1] eq 'HASH' && @_ == 2) {
$_[1]->{$key} ||= $value;
}
else {
my ($dom, %args) = @_%2 == 0 ? (undef, @_) : @_;
$args{$key} ||= $value;
@_ = ($dom, %args);
shift @_ unless defined $_[0];
}
return @_;
}
sub path_for {
my $self = shift;
my @args = @_;
if (my $lang = $self->_i18n2_stash->{lang}) {
@args = __add_option_no_override(lang => $lang, @args);
}
return $self->SUPER::path_for(@args);
}
}
sub register {
my ($self, $app, $conf) = @_;
$conf //= {};
my $i18n_log = $app->log->context('[' . __PACKAGE__ . ']');
my $translator = $conf->{translator} || sub { JWebmail::Plugin::I18N2::Translator->new(@_) };
my $defaultLang = $conf->{default_language} || 'en';
my $fileLocation = $conf->{directory} && Mojo::File->new($conf->{directory})->is_abs
? $conf->{directory}
: $app->home->child($conf->{directory} || 'lang');
my $t = $translator->(
default_language => $defaultLang,
directory => $fileLocation,
%{$conf->{rest} // {}}
);
{
local $" = ',';
$i18n_log->debug("loaded languages (@{[$t->languages]})");
if (keys $conf->{languages}->%* > $t->languages) {
$i18n_log->warn("missing languages");
}
}
$app->defaults(default_language => $defaultLang);
$app->defaults(languages => [$t->languages]);
# add translator as helper
$app->helper(l => sub {
my $c = shift;
my $lang = @_ == 2 ? $_[0] : $c->stash->{lang};
my $word = @_ == 2 ? $_[1] : $_[0];
my $res = $t->translate($lang, $word);
unless ($res) {
local $" = ' ';
$app->log->warn('[' . __PACKAGE__ . "] missing translation for '$lang':'$word' @{[ caller(1) ]}[0..2]");
}
return $res;
});
# modify incoming url
$app->hook(before_dispatch => sub {
my $c = shift;
unshift @{ $c->req->url->path->parts }, ''
unless $t->languages($c->req->url->path->parts->[0] || '');
});
# modify generated url
$app->hook(before_dispatch => sub {
my $c = shift;
$c->match(JWebmail::Plugin::I18N2::Match->new(
root => $c->app->routes,
_i18n2_stash => $c->stash,
));
});
return $app->routes->any('/:lang' => {lang => $defaultLang});
}
1
__END__
=encoding utf8
=head1 NAME
JWebmail::Plugin::I18N2 - Custom Made I18N Support an alternative to JWebmail::Plugin::I18N
=head1 SYNOPSIS
$app->plugin('I18N2', {
languages => [qw(en de es)],
default_language => 'de',
directory => 'path/to/language/files/',
})
# in your controller
$c->l('hello')
# in your templates
<%= l 'hello' %>
@@ de.lang
login = anmelden
userid = nuzerkennung
passwd = passwort
failed = fehlgeschlagen
about = über
example.com/de/myroute # $c->stash('lang') eq 'de'
example.com/myroute # $c->stash('lang') eq $defaultLanguage
# on example.com/de/myroute
url_for('my_other_route') #=> example.com/de/my_other_route
url_for('my_other_route', lang => 'es') #=> example.com/es/my_other_route
=head1 DESCRIPTION
L<JWebmail::Plugin::I18N2> provides I18N support.
The language will be taken from the first path segment of the url.
Be carefult with colliding routes.
Mojolicious::Controller::url_for is patched so that the current language will be kept for
router named urls.
This Plugin only works with Mojolicious version 8.64 or higher.
=head1 OPTIONS
=head2 default_language
The default language when no other information is provided.
=head2 directory
Directory to look for language files.
=head2 languages
List of allowed languages.
As a default, files of the pattern "$lang.lang" will be looked for.
=head1 HELPERS
=head2 l
This is used for your translations.
$c->l('hello')
=cut
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