[Project_owners] Getting Source Tab When Listening to http-on-modify-request

eric.jung at yahoo.com eric.jung at yahoo.com
Fri Mar 2 15:10:46 PST 2007


And how would you correlate the appropriate index for a given XmlHttpRequest?


----- Original Message ----
From: Adam Judson <adamsplugins at gmail.com>
To: Mozdev Project Owners List <project_owners at mozdev.org>
Sent: Friday, March 2, 2007 4:46:39 PM
Subject: Re: [Project_owners] Getting Source Tab When Listening to http-on-modify-request

The assumption here was that you (or rather Kyle) already had an array
of open tabs.  As a new tab is created, increment the index and
hardcode "magic_header=index" into the new XmlHttpRequest class for
that tab.

A

On 02/03/07, eric.jung at yahoo.com <eric.jung at yahoo.com> wrote:
>
> The question then becomes what to put in the header on in the custom
> nsIXMLHttpRequest implementation that uniquely identifies the window/tab on
> which the request originated. I thought I could use arguments.callee in the
> constructor of my XmlHttpRequest imlpementation to get to the window/tab,
> but that doesn't appear to be so. Remember that AJAX code creates the object
> simply with new XmlHttpRequest()... no arguments or any way I can see to get
> contextual information; e.g., the window/tab in which the object is created.
>
>
>
> ----- Original Message ----
> From: Adam Judson <adamsplugins at gmail.com>
> To: Mozdev Project Owners List <project_owners at mozdev.org>
> Sent: Friday, March 2, 2007 2:52:50 PM
> Subject: Re: [Project_owners] Getting Source Tab When Listening to
> http-on-modify-request
>
>
> Overwrite the XMLHttpRequest class in the the window with your own
> that delegates to the original, but adds an extra header with some
> magic number in it (jar number?).  Then parse and drop the header in
> your observer.
>
> I believe there are a few greasemonkey scripts that do similar things.
>
> Adam
>
> On 02/03/07, Kyle Wilgus <wigginz at gmail.com> wrote:
> > Here's what I have so far on the AJAX requests, I'm a bit worried that
> > there may not be an easy solution, and I'll have to get creative.
> > Hopefully this explanation makes sense.
> >
> > Basically in the case when the request it is a XMLHttpRequest (AJAX),
> > the interface requester (see my previous code in the thread) is an
> > instance of the XMLHttpRequest interface, and only supports the
> > following interfaces:
> >
> > nsIXMLHttpRequest, nsIInterfaceRequestor, nsIClassInfo,
> > nsIJSXMLHttpRequest, nsIDOMEventTarget, nsISupports
> >
> > >From here, if I cannot get an nsIDOMWindow instance from the interface
> > requester, I assume it's an XMLHttpRequest. I don't see any possible
> > way to get query an interface from this object that will give me
> > access to the source document or window. This is where I'm stuck now.
> >
> > I thought of pulling out the host name from the URI returned by the
> > XMLHttpRequest.name attribute and then cycling through all of the tabs
> > locations until I get a match. Only drawback with this solution is
> > that more than one tab may have have the same host so the first tab in
> > the array would always be picked. At the moment, it's at least better
> > to do this than not support AJAX at all.
> >
> > I'm struggling with finding another approach at the moment. I haven't
> > flushed out any code yet. I'm thinking about trying to find some event
> > that I can receive specifically for XMLHttpRequests that will give
> > access the DOM and then attach some meta data (tab Id) to the request
> > (header value for example) that I can pick up when I observe the
> > http-on-modify-request topic.
> >
> > I'll keep you updated on my progress.
> >
> > Kyle
> >
> >
> >
> > On 3/2/07, Arturo 'Buanzo' Busleiman <buanzo at buanzo.com.ar> wrote:
> > > Regarding AJAX, I'm currently testing that, too. Could you post any of
> > > your findings, Kyle?
> > > _______________________________________________
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> > > http://mozdev.org/mailman/listinfo/project_owners
> > >
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> >
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