"""enclosure.py - rawdog plugin that makes a link for enclosures
Author: Virgil Bucoci <vbucoci at acm.org>
License: GNU GPL v2.0
Date: Thu Sep  7 03:13:08 EEST 2006

This plugin makes enclosure-href, enclosure-length and
enclosure-type template parameters for the articles with enclosures.

Add the enclosure info to the item template:

    __if_enclosure-href__<div class="enclosure">
    <a href="__enclosure-href__">Enclosure</a> __endif__
    __if_enclosure-type__ __enclosure-type__ __endif__
    __if_enclosure-length__ (__enclosure-length__ bytes) __endif__
    __if_enclosure-href__</div>__endif__

And optionally some formatting, in style.css:

    .enclosure {
            color: gray;
            font-size: small;
            #border-top: 1px solid gray;
            margin: 0;
            padding: 6px;        
    }

"""
import rawdoglib.plugins

def enclosure(rawdog, config, feed, article, itembits):
    """Adds enclosure-href, enclosure-length and enclosure-type
    template parameters.
    """
    try:
        for i in ('href', 'length', 'type'):
            itembits['enclosure-%s' % i] = \
                                    article.entry_info.enclosures[0][i]
    except (KeyError, AttributeError):
        pass
    return True

rawdoglib.plugins.attach_hook("output_item_bits", enclosure)