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Re: [FileAPI] Blob.URN?

From: Michael Nordman <michaeln@google.com>
Date: Tue, 30 Mar 2010 17:00:48 -0700
Message-ID: <p2tfa2eab051003301700le19dc75ci32c79e392c340b1d@mail.gmail.com>
To: Darin Fisher <darin@chromium.org>
Cc: Jonas Sicking <jonas@sicking.cc>, Web Applications Working Group WG <public-webapps@w3.org>, Eric Uhrhane <ericu@google.com>
On Tue, Mar 30, 2010 at 4:56 PM, Darin Fisher <darin@chromium.org> wrote:

> The only way to get a FileWriter at the moment is from <input
> type="saveas">.  What is desired is a way to simulate the load of a resource
> with Content-Disposition: attachment that would trigger the browser's
> download manager.


When it comes to questions like these (when offline, how to do something
that happens in the online case)... i tend to say why not do it exactly the
same way as its done in the online case... so load a resource with a
Content-Disposition:attachment header on it :)


>
> -Darin
>
>
>
> On Tue, Mar 30, 2010 at 4:32 PM, Jonas Sicking <jonas@sicking.cc> wrote:
>
>> What's the use case for specifying the Content-Disposition mime type.
>> The ones I've heard so far seems better solved using the FileWriter
>> [1] API.
>>
>> [1] http://dev.w3.org/2009/dap/file-system/file-writer.html
>>
>> / Jonas
>>
>> On Tue, Mar 30, 2010 at 4:22 PM, Michael Nordman <michaeln@google.com>
>> wrote:
>> > There is more than just the mime type when dealing with the URLs.
>> > There at least two content headers of interest, Content-Type
>> > and Content-Disposition.
>> > Whatever mechanism involved should allow for both of these content
>> headers
>> > to be set
>> > by the web application.
>> >
>> > On Tue, Mar 30, 2010 at 3:07 PM, Jonas Sicking <jonas@sicking.cc>
>> wrote:
>> >>
>> >> On Tue, Mar 30, 2010 at 2:57 PM, Darin Fisher <darin@chromium.org>
>> wrote:
>> >> > On Tue, Mar 30, 2010 at 12:22 AM, Jonas Sicking <jonas@sicking.cc>
>> >> > wrote:
>> >> >>
>> >> >> 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.
>> >> >>
>> >> >> IIRC originally it was placed on File since Blobs do not have a
>> >> >> content type. However I think there is general agreement that it
>> >> >> should be moved to Blob.
>> >> >>
>> >> >> However it would be great to be able to assign a content type to a
>> >> >> Blob. Possibly slice() could take a optional argument.
>> >> >>
>> >> >
>> >> > Adding an optional parameter to slice() sounds attractive indeed.
>> >> > BlobBuilder [1] should probably also have such an optional argument.
>> >>
>> >> Indeed!
>> >>
>> >> / Jonas
>> >>
>> >
>> >
>>
>
>
Received on Wednesday, 31 March 2010 00:01:18 GMT

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