==== NAME ====

Posy::Plugin::DynamicCss - Posy plugin to load different CSS styles based on
the UserAgent.


==== VERSION ====

This describes version ``0.41'' of Posy::Plugin::DynamicCss.


==== DESCRIPTION ====

This plugin enables Posy users to load different CSS stylesheets based on
the UserAgent.

There is one variable filled in by this plugin that can be used within your
flavour files. The $flow_dynamic_css_line variable contains the stylesheet
link metatag for the currently selected (browser-specific) CSS file. This
variable must be inserted into your head flavour file.


==   Activation   ==

This plugin needs to be added to both the plugins list and the actions list.
It doesn't really matter where it is in the plugins list, just so long as
you also have the Posy::Plugin::YamlConfig plugin as well.

In the actions list, 'dynamic_css_set' needs to go somewhere after
``head_template'' and before ``head_render'', since the config needs to have
been read, and this needs to set values before the head is rendered.


==   Configuration   ==

This expects configuration settings in the $self->{config} hash, which, in
the default Posy setup, can be defined in the main "config" file in the
config directory.

This requires the Posy::Plugin::YamlConfig plugin (or equivalent), because
the configuration variables for this plugin are not simple string values; it
expects the config values to be in a hash at $self->{config}->{dynamic_css}

``dynamic_css''
A hash containing the settings.

``default''
The default CSS link to use when one can't figure out the browser.

``files''
A hash containing, for each browser, the browser string to compare against,
and the CSS link to use if it matches.

Example config file:

        ---
        dynamic_css:
          default: '/styles/layout_netscape.css'
          files:
            gecko: '/styles/layout_gecko.css'
            'MSIE.6|MSIE.5': '/styles/layout_msie.css'
            'Mozilla.4' : '/styles/layout_netscape.css'


==== INSTALLATION ====

Installation needs will vary depending on the particular setup a person has.


==   Administrator, Automatic   ==

If you are the administrator of the system, then the dead simple method of
installing the modules is to use the CPAN or CPANPLUS system.

    cpanp -i Posy::Plugin::DynamicCss

This will install this plugin in the usual places where modules get
installed when one is using CPAN(PLUS).


==   Administrator, By Hand   ==

If you are the administrator of the system, but don't wish to use the
CPAN(PLUS) method, then this is for you. Take the *.tar.gz file and untar it
in a suitable directory.

To install this module, run the following commands:

    perl Build.PL
    ./Build
    ./Build test
    ./Build install

Or, if you're on a platform (like DOS or Windows) that doesn't like the "./"
notation, you can do this:

   perl Build.PL
   perl Build
   perl Build test
   perl Build install


==   User With Shell Access   ==

If you are a user on a system, and don't have root/administrator access, you
need to install Posy somewhere other than the default place (since you don't
have access to it). However, if you have shell access to the system, then
you can install it in your home directory.

Say your home directory is "/home/fred", and you want to install the modules
into a subdirectory called "perl".

Download the *.tar.gz file and untar it in a suitable directory.

    perl Build.PL --install_base /home/fred/perl
    ./Build
    ./Build test
    ./Build install

This will install the files underneath /home/fred/perl.

You will then need to make sure that you alter the PERL5LIB variable to find
the modules, and the PATH variable to find the scripts (posy_one,
posy_static).

Therefore you will need to change: your path, to include
/home/fred/perl/script (where the script will be)

        PATH=/home/fred/perl/script:${PATH}

the PERL5LIB variable to add /home/fred/perl/lib

        PERL5LIB=/home/fred/perl/lib:${PERL5LIB}


==== REQUIRES ====

    Posy
    Posy::Core
    Posy::Plugin::YamlConfig

    Test::More


==== AUTHOR ====

    Kathryn Andersen (RUBYKAT)
    perlkat AT katspace dot com
    http://www.katspace.com


==== COPYRIGHT AND LICENCE ====

Copyright (c) 2004-2005 by Kathryn Andersen

Original 'dynamiccss' blosxom plugin copyright (c) 2004 by Brian Haberer
http://www.canonical.org/~brian/software/dynamiccss

This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA.

Or See: http://www.gnu.org/copyleft/gpl.html