embedding youtube videos in trac wiki pages|xyzzy xyzzy|you are in a twisty maze of little passages... there's a link a here.

while setting up a company internal trac wiki for a small project i wanted to include a link to a relevant youtube video and started looking for a YouTube trac macro — without finding one really.¹ in typical top gear fashion i asked myself “how hard can it be” to write my own trac macro. turns out: not very.

so, here it is:

[python]
from datetime import datetime
# Note: since Trac 0.11, datetime objects are used internally

from genshi.builder import tag

from trac.util.datefmt import format_datetime, utc
from trac.wiki.macros import WikiMacroBase
from trac.util.html import Markup

import re

class YouTubeMacro(WikiMacroBase):
    '''Simple YouTube macro.

    Use as follows:

        [[YouTube(YOUTUBE-URL)]]
    '''

    revision = '0.2'
    url = 'http://xyzzyxyzzy.net'

    reYouTube = re.compile(r'http://.+/watch\?v=(?P&lt;id&gt;.+)$')

    def expand_macro(self, formatter, name, args):
        # parse: http://uk.youtube.com/watch?v=kJNDcurLP1w
        id = args
        match = YouTubeMacro.reYouTube.match(id)
        if match:
            id = match.group('id')

        return Markup('''&lt;div class=&quot;tracyoutube&quot;&gt;
   &lt;object width=&quot;425&quot; height=&quot;344&quot;&gt;
       &lt;param name=&quot;movie&quot; value=&quot;http://www.youtube.com/v/%(id)s&amp;hl=en&amp;fs=1&quot;&gt;&lt;/param&gt;
       &lt;param name=&quot;allowFullScreen&quot; value=&quot;true&quot;&gt;&lt;/param&gt;
       &lt;param name=&quot;allowscriptaccess&quot; value=&quot;always&quot;&gt;&lt;/param&gt;
       &lt;embed src=&quot;http://www.youtube.com/v/%(id)s&amp;hl=en&amp;fs=1&quot; type=&quot;application/x-shockwave-flash&quot;
              allowscriptaccess=&quot;always&quot; allowfullscreen=&quot;true&quot; width=&quot;425&quot; height=&quot;344&quot;&gt;&lt;/embed&gt;
   &lt;/object&gt;
&lt;/div&gt;''' % dict(id = id))
[/python]

cook for 5min, stir constantly, download to your trac’s plugin directory as YouTube.py and enjoy.

the MovieMacro plugin looked like a good way of doing it, but apparently you need to install a special, embedded, flash player which i had no success with… ↩