While developing the Shinytastic in-house Content Management System we needed an easy way for users to browse and select the files they have uploaded to their sites (via the ShinyCMS file manager component) so we put together an Actionscript 3 application.
This fully integrates with the ShinyCMS and can work as both a plugin for TinyMCE or anywhere else within the CMS that a file needs to be selected from the library.
It allows files to be filtered by file group (the library in the CMS allows grouping of files) or by file extension. The CMS itself takes care of the file list and file group information, passing them to the flash app via xml.
The app can accept variables to filter the files available depending on context, so for example if the CMS needed a component which required an image in a certain group (let's say 'Events') it can be set to only display jpg in the Event group, the file type selector and file group selector will be switched off.
The example below is a first release test, at time of writing we are still carrying out testing and bug-fixing.