NAME
    Catalyst::View::ContentNegotiation::XHTML - A Moose Role to apply to
    Catalyst views adjusts the response Content-Type header to
    application/xhtml+xml content if the browser accepts it.

SYNOPSIS
        package Catalyst::View::TT;

        use Moose;
        use namespace::clean -except => 'meta';

        extends qw/Catalyst::View::TT/;
        with qw/Catalyst::View::ContentNegotiation::XHTML/;

        1;

DESCRIPTION
    This is a very simple Role which uses a method modifier to run after the
    "process" method, and sets the response "Content-Type" to be
    "application/xhtml+xml" if the users browser sends an "Accept" header
    indicating that it is willing to process that MIME type.

    Changing the "Content-Type" causes browsers to interpret the page as
    XML, meaning that the markup must be well formed.

    This is useful when you're developing your application, as you know that
    all pages you view are parsed as XML, so any errors caused by your
    markup not being well-formed will show up at once.

METHOD MODIFIERS
  after process
    Changes the response "Content-Type" if appropriate (from the requests
    "Accept" header).

METHODS
  pragmatic_accept
    Some browsers (such as Internet Explorer) have a nasty way of sending
    Accept */* and this claiming to support XHTML just as well as HTML.
    Saving to a file on disk or opening with another application does count
    as accepting, but it really should have a lower q value then text/html.
    This sub takes a pragmatic approach and corrects this mistake by
    modifying the Accept header before passing it to content negotiation.

ATTRIBUTES
  variants
    Returns an array ref of 3 part arrays, comprising name, priority, output
    mime-type, which is used for the content negotiation algorithm.

PRIVATE METHODS
  _build_variants
    Returns the default variant attribute contents.

SEE ALSO
    Catalyst::View::TT::XHTML - Trivial Catalyst TT view using this role.
    <http://www.w3.org/Protocols/rfc2616/rfc2616-sec12.html> - Content
    negotiation RFC.

BUGS
    Will only work with Views which implement a process method.

    Should be split into a base ContentNegotiation role which is consumed by
    ContentNegotiation::XHTML.

AUTHOR
    Tomas Doran (t0m) "<bobtfish@bobtfish.net>"

CONTRIBUTORS
    David Dorward - test patches and */* pragmatism.
    Florian Ragwitz (rafl) "<rafl@debian.org>" - Conversion into a Moose
    Role

COPYRIGHT
    This module itself is copyright (c) 2008 Tomas Doran and is licensed
    under the same terms as Perl itself.