On Nov 13, 6:39 am, Scott Sauyet <scott.sau...@gmail.com> wrote:
> On Thu, Nov 12, 2009 at 1:15 PM, John Resig <jere...@gmail.com> wrote:
> >> I think the one area that would be troublesome is in the properties
> >> that xhr provides (like readyState, responseXML, etc.). I'm not sure
> >> how you'd build this mock XHR and keep those properties up to date.
>
> On Thu, Nov 12, 2009 at 10:14 PM, Julian Aubourg
>
> <aubourg.jul...@gmail.com> wrote:
> > As an example of what I'm talking about with an real xhr as a base:
> > - layer 0 is window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") :
> > new XMLHttpRequest()
> > - layer 1 is a standard compliant xhr implementation that delegates to layer
> > 0 while hiding browser incompatibilities. It listens to layer 0 through its
> > onreadystatechange event handler and propagates the event by calling its own
> > onreadystatechange if available
>
> I had briefly mentioned a similar idea in the other thread [1], but
> was rather scared of the actual implementation. I guess the question
> is whether there are possible state changes to the underlying XHR
> object that might affect the properties but that are not exposed
> through the onreadystatechange handler. I don't have nearly the
> knowledge of XHR to answer this. If there aren't any, I think this is
> quite a good idea.
>
> -- Scott
>
> [1]http://tinyurl.com/yl2lqjz#msg_1fa4cac00dbcedcf
Well, then. I had started working on something similar, but much
simpler. I had planned to intercept the return value of $.ajax and
extend it with 'success' and 'error' functions. Of course, I hadn't
gotten to the point of actually testing this, so who knows if it would
have worked. Your solution sounds much more robust and forward
thinking. Very nice.
_jason
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