Paid Plugin Development

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Just adding this from btmash from the recent closed thread - http://drupal.org/node/1072318

I'm attempting to get something like this up and running and while I have made some strides (I am not sure about how to make it more customizable (the best option I can think of is by using tokens and building that way) but as far as my search results go, this is actually working really well. 2 assumptions are made (aside from knowing how to package the plugin together):

There is a field called field_image
There is an image preset called linkit_thumb
You need change the field names/presets as needed but its working very well (

class LinkitPluginForImage extends LinkitPluginNode {
  function buildLabel($entity) {
    $label = parent::buildLabel($entity);
    $node = node_load($entity->nid);
    $images = field_get_items('node', $node, 'field_image', $node->language);
    if (!empty($images)) {
      $variables = $images[0];
      $variables['path'] = $variables['uri'];
      $variables['style_name'] = 'linkit_thumb';
      $label = theme('image_style', $variables) . $label;
    }
    return $label;
  }
}

So within suggestion 1, I have part 1 working. However, part 2 is quite confusing. I'm trying to figure out where/when which linkit_insert plugin is being called (as an FYI, this is for nodes). So any guidance on implementing a linkit_insert plugin and calling that implementation of the plugin would be appreciated.

Anyone else looking for a solution to this can now find it in the node embed module - https://drupal.org/project/node_embed - just change the included view to show image thumbnails and link to the image content node