Add a hook allowing modules to set a user context in other cases than user page or full node page (patch proposed)

The module automatically overrides a site-wide widget with the user-wide one, if the concerned user set his social profile url. This occurs when a user page is shown or a node full content page (the author's widget is displayed). That's great !

I'd like to extend this functionality to other cases. My need is to display a user's widget on a taxonomy term list (taxonomy/term/11 for instance) : in the term definition, I have a taxonomy reference field that gives the user attached to the term (the user in charge of the content section defined by the term). When a taxonomy term listing is displayed, I'd like to have the user-wide social widget displayed, instead of the site-wide one.

To do this, I suggest the following patch which calls a dedicated hook "hook_socialmedia_get_context_uid()". It allows other modules to set a user context in other cases ; I modified socialmedia_tokens() in socialmedia.tokens.inc.

Here's my module hook implementation as example :

function mymodule_socialmedia_get_context_uid() {
  $arg = arg();
  if (count($arg)==3 && $arg[0]=='taxonomy' && $arg[1]=='term') {
    return _mymodule__get_field_value('field_authors','taxonomy_term','section',$arg[2],'_uid');  // returns the UID of the user in charge of the content section
  }
  return NULL;
}