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Re: [FileAPI] Blob.URN?

From: Darin Fisher <darin@chromium.org>
Date: Wed, 24 Mar 2010 00:17:16 -0700
Message-ID: <w2lbd8f24d21003240017rcc16ae5ai819f4acf425dc707@mail.gmail.com>
To: Michael Nordman <michaeln@google.com>
Cc: Dmitry Titov <dimich@google.com>, Web Applications Working Group WG <public-webapps@w3.org>
Thanks for the explanation.  The getURN method is an interesting proposal.
 It seems useful even when you do have a File because you might want to
force the file contents to be loaded as a particular media type.


On Tue, Mar 23, 2010 at 7:40 PM, Michael Nordman <michaeln@google.com>wrote:

> This has been discussed before, not sure what the conclusion was (if any)
> http://www.mail-archive.com/public-webapps@w3.org/msg06137.html
> <http://www.mail-archive.com/public-webapps@w3.org/msg06345.html><snip>
> In order for the URN to be useful, it would have to have a mediaType
> associated with it, and then there's content-disposition to think
> about, which then wants a file name as well...boy, that's a lot of
> baggage.  However, since these aren't really inherent properties of
> the Blob, just of the way you want the browser to view the Blob, it
> would seem natural to me do to something like this:
>     interface Blob {
>       ...
>       DOMString getURN(in DOMString mediaType,
>            [Optional] in DOMString contentDisposition,
>            [Optional] in DOMString name);
>     };
> </snip>
> On Tue, Mar 23, 2010 at 7:19 PM, Dmitry Titov <dimich@google.com> wrote:
>> Blob would need a content-type for that, but it could probably easy be
>> added as a property that is assignable.
>> BTW if the Blob could have a urn and mime type, this info could be
>> directly used to form the headers for the Blob when sending it in multipart
>> form using FormData.
>> Dmitry
>> On Tue, Mar 23, 2010 at 2:23 PM, Darin Fisher <darin@chromium.org> wrote:
>>> Apologies if this has been discussed before, but I'm curious why URN is
>>> not a property of Blob.  It seems like it would be useful to be able to load
>>> a slice of a File.  For example, this could be used by an application to
>>> fetch all of its subresources out of a single file.
>>> -Darin
Received on Wednesday, 24 March 2010 07:17:47 UTC

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