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Re: TAG Comment on

From: Adam Barth <w3c@adambarth.com>
Date: Tue, 15 Nov 2011 14:47:07 -0800
Message-ID: <CAJE5ia8bEKzZ02SJLEi-OuGy=Ke0spJrAa3vc16-8tK6MjBeHw@mail.gmail.com>
To: Noah Mendelsohn <nrm@arcanedomain.com>
Cc: public-webapps@w3.org, "www-tag@w3.org" <www-tag@w3.org>
These APIs are quite widely used on the web.  It seems unlikely that
we'll be able to delete either of them in favor of a single facility.


On Tue, Nov 15, 2011 at 2:05 PM, Noah Mendelsohn <nrm@arcanedomain.com> wrote:
> This is a comment from the W3C Technical Architecture Group on the last call
> working draft: "Web Storage" [1].
> The HTML5 Application Cache (AppCache) [2] and Local Storage [1] both
> provide client-side storage that can be used by Web Applications. Although
> the interfaces are different (AppCache has an HTML interface while Local
> Storage has a JavaScript API), and they do seem to have been designed with
> different use cases in mind, they provide somewhat related facilities: both
> cause persistent storage for an application to be created, accessed and
> managed locally at the client. If, for example, the keys in Local Storage
> were interpreted as URIs then Local Storage could be used to store manifest
> files and Web Applications could be written to look transparently for
> manifest files in either the AppCache or in Local Storage. One might also
> envision common facilities for querying the size of or releasing all of the
> local storage for a given application.
> At the Offline Web Applications Workshop on Nov 5, 2011 [3] there was a
> request for a JavaScript API for AppCache and talk about coordinating
> AppCache and Local Storage.
> The TAG believes it is important to consider more carefully the potential
> advantages of providing a single facility to cover the use cases, of perhaps
> modularizing the architecture so that some parts are shared, or if separate
> facilities are indeed the best design, providing common data access and
> manipulation APIs. If further careful analysis suggests that no such
> integration is practical, then, at a minimum, each specification should
> discuss how it is positioned with respect to the other.
> Noah Mendelsohn
> For the: W3C Technical Architecture Group
> [1] http://www.w3.org/TR/2011/WD-webstorage-20111025/
> [2] http://www.w3.org/TR/html5/offline.html#appcache
> [3] http://www.w3.org/2011/web-apps-ws/
Received on Tuesday, 15 November 2011 22:48:15 UTC

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