Decide if formatters restricted to specific file types should be available to custom file types

Hello,

It's straightforward enough to create a new file_entity bundle type, but how to make that bundle type an 'image' type, and furthermore how to create a new bundle instance of that type?

For example, I created an "Avatar" file_entity type. For mimetypes, I put 'image/*'. I created it, then went to that type's 'Manage File Display' tab and the only formatters available were purely generic. No image formatters.

I worked around this by implementing hook_file_formatter_info_alter() and adding my bundle type to the 'file types' key if it's in there for images:

/**
 * Implements hook_file_formatter_info_alter().
 */
function mymodule_file_formatter_info_alter(&$info) {
  foreach ($info as $key => $data) {
    if (isset($data['file types']) && in_array('image', $data['file types'])) {
      $info[$key]['file types'][] = 'avatar';
    }
  }
}

Okay, now I have image formatters in there, and I proceed to set all those.

Next, on to adding an "Avatar" image:

First I tried a straight file/add .. But nowhere am I asked "Image" or "Avatar", and after uploading the system assumes Image and no choice offered to change that afterwards, either.

Next, I tried creating on a node content type a File field with Media Selector as the widget. In the options, the only "Allowed remote media types" selected is Avatar. I then went into a node edit screen and attempted to upload an image. Again, the same thing, it assumes I mean Image and that's it.

I'm guessing this is a mimetype issue, but any file entity bundle type that contains 'images' is going to need to have to share the same mimetypes with other 'image' bundle types.

Thank you all