Reference
Remove the items given in the argument from the filter value.
Filter out media ids that are embedded in the body , body_extra and text blocks of your page.
Todo
Show a boolean value as a text.
Used for inserting an internal link in the TinyMCE editor in the admin.
Used for triggering the insertion of a media item in the TinyMCE editor in the admin.
Used after a media item is selected in the media chooser for the TinyMCE editor.
Used by the admin as a callback when a media file has been selected for insertion into the rich-text editor.
Model for system-wide site status information.