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Edit File: Types.pod

=encoding utf8

=head1 NAME

MojoX::MIME::Types - MIME Types for Mojolicious

=head1 INHERITANCE

MojoX::MIME::Types
   is a Mojo::Base

=head1 SYNOPSIS

use MojoX::MIME::Types;

# set in Mojolicious as default
  $app->types(MojoX::MIME::Types->new);
  app->types(MojoX::MIME::Types->new);   # ::Lite

# basic interface translated into pure MIME::Types
  $types->type(foo => 'text/foo');
  say $types->type('foo');

=head1 DESCRIPTION

[Added to MIME::Types 2.07]
This module is a drop-in replacement for Mojolicious::Types, but
with a more correct handling plus a complete list of types... a huge
list of types.

Some methods ignore information they receive: those parameters are
accepted for compatibility with the Mojolicious::Types interface,
but should not contain useful information.

Read the L</DETAILS> below, about how to connect this module into
Mojolicious and the differences you get.

=head1 METHODS

=head2 Constructors

=over 4

=item MojoX::MIME::Types-E<gt>B<new>(%options)

Create the 'type' handler for Mojolicious.  When you do not specify your
own MIME::Type object ($mime_type), it will be instantanted for you.
You create one yourself when you would like to pass some parameter to
the object constructor.

-Option    --Default
  mime_types  <created internally>
  types       undef

=over 2

=item mime_types => MIME::Types-object

Pass your own prepared L<MIME::Types|MIME::Types> object, when you need some
instantiation parameters different from the defaults.

=item types => HASH

Ignored.

=back

example:

$app->types(MojoX::MIME::Types->new);

# when you need to pass options to MIME::Types->new
  my $mt    = MIME::Types->new(%opts);
  my $types = MojoX::MIME::Types->new(mime_types => $mt);
  $app->types($types);

=back

=head2 Attributes

=over 4

=item $obj-E<gt>B<mimeTypes>()

Returns the internal mime types object.

=item $obj-E<gt>B<types>( [\%table] )

In Mojolicious::Types, this attribute exposes the internal
administration of types, offering to change it with using a clean
abstract interface.  That interface mistake bites now we have more
complex internals.

B<Avoid this method!>  The returned HASH is expensive to construct,
changes passed via C<%table> are ignored: L<MIME::Types|MIME::Types> is very complete!

=back

=head2 Actions

=over 4

=item $obj-E<gt>B<detect>( $accept, [$prio] )

Returns a list of filename extensions.  The $accept header in HTTP can
contain multiple types, with a priority indication ('q' attributes).
The returned list contains a list with extensions, the extensions related
to the highest priority type first.  The C<$prio>-flag is ignored.
See L<MIME::Types::httpAccept()|MIME::Types/"HTTP support">.

This detect() function is not the correct approach for the Accept header:
the "Accept" may contain wildcards ('*') in types for globbing, which
does not produce extensions.  Better use L<MIME::Types::httpAcceptBest()|MIME::Types/"HTTP support">
or L<MIME::Types::httpAcceptSelect()|MIME::Types/"HTTP support">.

example:

my $exts = $types->detect('application/json;q=9');
  my $exts = $types->detect('text/html, application/json;q=9');

=item $obj-E<gt>B<type>( $ext, [$type|\@types] )

Returns the first type name for an extension $ext, unless you specify
type names.

When a single $type or an ARRAY of @types are specified, the C<$self>
object is returned.  Nothing is done with the provided info.

=back

=head1 DETAILS

=head2 Why?

The Mojolicious::Types module has only very little knowledge about
what is really needed to treat types correctly, and only contains a tiny
list of extensions.  L<MIME::Types|MIME::Types> tries to follow the standards
very closely and contains all types found in various lists on internet.

=head2 How to use with Mojolicious

Start your Mojo application like this:

package MyApp;
  use Mojo::Base 'Mojolicious';

sub startup {
     my $self = shift;
     ...
     $self->types(MojoX::MIME::Types->new);
  }

If you have special options for L<MIME::Types::new()|MIME::Types/"Constructors">, then create
your own MIME::Types object first:

my $mt    = MIME::Types->new(%opts);
  my $types = MojoX::MIME::Types->new(mime_types => $mt);
  $self->types($types);

In any case, you can reach the smart L<MIME::Types|MIME::Types> object later as

my $mt    = $app->types->mimeTypes;
  my $mime  = $mt->mimeTypeOf($filename);

=head2 How to use with Mojolicious::Lite

The use in Mojolicious::Lite applications is only slightly different
from above:

app->types(MojoX::MIME::Types->new);
  my $types = app->types;

=head2 Differences with Mojolicious::Types

There are a few major difference with Mojolicious::Types:

=over 4

=item *

the tables maintained by L<MIME::Types|MIME::Types> are complete.  So: there shouldn't
be a need to add your own types, not via L<types()|MojoX::MIME::Types/"Attributes">, not via L<type()|MojoX::MIME::Types/"Actions">.
All attempts to add types are ignored; better remove them from your code.

=item *

This plugin understands the experimental flag 'x-' in types and handles
casing issues.

=item *

Updates to the internal hash via types() are simply ignored, because it
is expensive to implement (and won't add something new).

=item *

The L<detect()|MojoX::MIME::Types/"Actions"> is implemented in a compatible way, but does not understand
wildcards ('*').  You should use L<MIME::Types::httpAcceptBest()|MIME::Types/"HTTP support"> or
L<MIME::Types::httpAcceptSelect()|MIME::Types/"HTTP support"> to replace this broken function.

=back

=head1 SEE ALSO

This module is part of MIME-Types distribution version 2.17,
built on January 26, 2018. Website: F<http://perl.overmeer.net/CPAN/>

=head1 LICENSE

Copyrights 1999-2018 by [Mark Overmeer <markov@cpan.org>]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
See F<http://dev.perl.org/licenses/>