[webkit-dev] Directory upload experimental feature

Sam Weinig sam.weinig at gmail.com
Sat May 29 10:22:48 PDT 2010

How will the directory structure and all the files therein be represented in
the form submission?


On Fri, May 28, 2010 at 3:17 PM, John Gregg <johnnyg at google.com> wrote:

> Hi WebKit,
> I recently proposed adding directory upload support to HTML via a new
> <input> attribute to whatwg@, and the discussion arrived at "try it out".
>  Having written some code I think I have something that works pretty well,
> and I'd like to land it on an experimental basis in WebKit, but want to
> reach out early before trying to put any code in the tree.  The plan that
> comes to mind is a new ENABLE_DIRECTORY_UPLOAD flag, but I'm completely open
> to other options.
> Background (cf. the whatwg thread
> http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2010-April/025764.html
> ):
>  - The use case for this is a photo album or file manager web application,
> which wants the user to easily choose an entire directory to recursively
> upload, while preserving the sub-directory structure.
>  - The reason for the new attribute is to signal the UA to show a native
> folder-picker rather than a file-picker, which on most OSs are two distinct
> dialogs.
> The approach I'm using has 2 parts and is a small amount of WebCore code
> (about 200 lines).
>  - Extend HTMLInputElement to support the directory attribute, which is
> passed up via FileChooser allowing the UA to display a folder-picker.  UA
> enumerates all the files and returns them in the normal way.
>  - Extend File to have a File.path property, which contains the path
> information starting from the chosen directory as the root.
>  HTMLInputElement is responsible for generating these values from the list
> of files when the directory attribute is set.
> Thoughts?
> Thanks,
>  -John
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