In order to upload files with the FileProvider framework, a UI must be implemented to allow the user to interact with their file provider account. When a user selects Add File to upload a file, they will be presented with a modal with tabs to switch between two different types of upload: from local machine, from file provider. Uploading from local machine is the same old default upload mechanism.
When selecting upload from file provider, they would be presented with a new window to interact with their file provider. Things they can do are:
- switch between different accounts
- select a file to upload by clicking on it
- navigate through directories by double clicking them
- click on file/directory to display metadata for it on the side
- search for items in the file provider
There's also the caption and attachment history field as well, to match the current mechanism.
