How do I show the filename instead of the file I drag into an Emacs buffer?

Question

I would like to drag and drop an image file into an emacs buffer and make the filename appear instead of the image. Is this possible?

Answer 1

(setq dnd-protocol-alist '(("^file:" . dnd-insert-filename)))

(defun dnd-insert-filename (uri _action)
  (insert (dnd-get-local-file-name uri)))

I learnt the dnd-protocol-alist user option from Elisp manual: (elisp) Drag and Drop and read its docstring to know how to customize its value.