- From: Noah Mendelsohn <nrm@arcanedomain.com>
- Date: Thu, 10 Mar 2011 11:11:10 -0500
- To: John Kemp <john@jkemp.net>
- CC: Jeni Tennison <jeni@jenitennison.com>, www-tag@w3.org
On 3/10/2011 8:56 AM, John Kemp wrote: > How do you pass around that hunk of Javascript which identifies a particular state? Do you want to? I hate to be sending so many replies on this thread, but I really feel you missed the point of my original proposal [1]. My whole point is that for some Ajax applications (the simulator) it's appropriate to think about identifying application states, but for many other Ajax applications (resume browser, email reader, twitter, maps) it's better to realize that we're using Ajax to navigate among documents, and to use more conventional URIs to identify those documents rather than identifying the "state of the app". Using Google Maps as an example, the URI at [2] is >not< an identifier for the state of the Ajax application I used to create it; it's an identifier for a map, centered at a certain latitude/longitude, at a certain zoom level, and with the Stata Center marked on the map. We can demonstrate that I'm right be accessing this URI from a non-Javascript enabled browser. Go ahead, try it. Turn off Javascript in your browser, and navigate to [2]. If [2] were an identifier for an Ajax state, nothing would happen. In fact, you see the map, just without all the Ajax interactivity. That's exactly my point. If Twitter did this, we wouldn't be having this silly #! debate. Twitter could use the same URIs it always have, with an Ajax implementation on some clients and non-Javascript on others. You can't do this stuff with fragments, because with Javascript off, you require that all the parameters be sent to the server, and with # they can't be (because HTTP forbids fragments in the Request-URI). So, that's why my post is encouraging use of the document abstraction, and non-# URIs, in cases where they reasonably apply. In practice, this can only happen when the HTML 5 APIs become more widely available, but I believe it's the right architectural direction. Noah [1] http://blog.arcanedomain.com/2011/03/identifying-documents-in-web-applications/ [2] http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Stata+Center,+Vassar+Street,+Cambridge,+MA&aq=0&sll=37.0625,-95.677068&sspn=50.37814,114.169922&ie=UTF8&hq=&hnear=Stata+Center,+32+Vassar+St,+Cambridge,+Middlesex,+Massachusetts+02139&z=15&iwloc=A
Received on Thursday, 10 March 2011 16:11:41 UTC