I have a strange problem. I am dynamically populating content into Wordpress' tinyMCE editor. Part of this content is a placeholder image, that the user can then replace. The issue is when I click the 'pencil' icon to edit, I am not given the "Replace" button like I would any other images.
This is what I see: http://imgur.com/Bjoencj
This is what I expect, and works on images imported from the media library: http://imgur.com/fra3PfX
Notice, the replace button is present in the second example. I guess because the image is hard-linked and wordpress has no way of knowing if the image exists in the media library. How can I dynamically import an image so this functionality is present?
Are you inserting the placeholder image with the setContent function?
http://www.tinymce.com/wiki.php/API3:method.tinymce.Editor.setContent
Perhaps you can try adding the placeholder image to your media library.