I have a Drupal commerce site, and the product allows a user to upload a file. The file is attached to a line item type. Currently they are presented with a Browse button which is fine, but I would like to give them the ability to drag and drop a file into the upload area as well. Similar in functionality to Gmail or imgur.com.
The field type has to stay as a standard Drupal File field, since we do some post upload processing to the file.
I have unsuccessfully played with thee media module, and a few others. The problem I have them so far is that they are either a different field type, or there isn't a way to limit the drag and drop upload to a single file. We only allow one file to be attached.
It has surprised me that this isn't easier to do. I will send $50 via PayPal to whomever can tell me how to do this. If really needed, I can get you access to our dev site, but I would rather have directions on how to set it up myself.
Please ask me for any more information you may need.