[whatwg] Intent of the FileSystem API

Charles Pritchard chuck at jumis.com
Mon Feb 28 14:54:15 PST 2011

I'd like some clarification on the intent of the FileSystem API: 
requestFileSystem permanent, getDirectory and getFile.

Are they intended to directly pass through to the host operating system, 
or are they just programming constructs?

They're not particularly easy to use, compared to the IndexedDB data 
store, but if they are OS level commands,
then they do help with usability of a web app with the rest of the OS: 
with managing files directly from the OS file manager.

Is the FileSystem API intended to expose a folder on the host operating 
system, or is it just an abstraction
which can be bolted onto any data system (such as, using SQLite as a 
backend, as appCache and IndexedDB do)  ?

Are there any plans of reviewing/visiting efficient File/Blob support in 


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