W3C home > Mailing lists > Public > public-geolocation@w3.org > June 2008

Re: DOM based API

From: Doug Schepers <schepers@w3.org>
Date: Fri, 06 Jun 2008 13:55:00 -0400
Message-ID: <484979F4.7090909@w3.org>
To: public-geolocation@w3.org

Hi, Folks-

(- public-webapi, just to reduce cross-posting)


Maciej Stachowiak wrote (on 6/6/08 12:58 PM):
> 
> On Jun 6, 2008, at 7:55 AM, Mark Baker wrote:
> 
>> On Thu, Jun 5, 2008 at 4:20 PM, Andrei Popescu <andreip@google.com> 
>> wrote:
>>>
>>> I am interested in working on a specification of a DOM API that allows
>>> Web pages to access the user's geolocation information (e.g. latitude
>>> and longitude).
>>
>> I'm very glad to see somebody mention using the DOM API for this kind
>> of information, right off the bat.  I'm a big believer in reuse, and
>> feel that this API is an obvious candidate for reusing the DOM, i.e.
>> providing a "Location" Javascript object that's also a DOM Document.
> 
> I don't understand why you would want the "Location" object to be a DOM 
> Document. (It needs a better name, by the way, so it doesn't conflict 
> with the Location object that is window.location.) And I don't think 
> that is what Andrei had in mind, as I understand it, he just wants an 
> API that aligns well with the DOM, not necessarily one that makes 
> non-markup information appear to be part of a Document.

I think I read the idea of hanging it off the Navigator object instead 
of the Document or Window object, which puzzled me... a request for 
access comes directly from a particular site, so granting it should 
apply only to the requesting tab/window.


> I think presenting geolocation info as a Document would have the 
> disadvantages of more memory use and less obvious access for authors.
> 
> What are the advantages?

I'm not sure I'd count it as an advantage, but there is the way KDDI 
[1], DoCoMo [2], and (as information) Microformats [3] deals with this 
in markup.  I'm not suggesting we align around that, more mentioning it 
for context.

<off-topic>
I'm sure it's out of scope for the Geolocation API, but it might be 
interesting to discuss how location could be codified in markup such 
that if you found a resource that had a specific location (a web page 
for a pizza place), a user could find the relation between their current 
location and that place.  I know, more of a service, but I thought I'd 
toss it out there.
</off-topic>

[1] http://sideshowbarker.net/gps/
[2] http://www.nttdocomo.co.jp/english/service/imode/make/content/gps/
[3] http://microformats.org/wiki/geo

Regards-
-Doug Schepers
W3C Team Contact, SVG, CDF, and WebAPI
Received on Friday, 6 June 2008 17:55:36 GMT

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