Re: Loading XML from CPP

[Darin Fisher]

Ah, the problem is that xpcshell does not spin up an event queue, so 
there is nothing to drive the network-level events.  It seems like you 
should be seeing some kind of error in this case, but unfortunately that 
isn't happening.  So, it probably only looks like the load succeeded 
when in fact it most likely did not succeed.

If you want to make it work with xpcshell, you can probably do so by 
simply creating an event queue like so:

 const nsIEventQueueService = Components.interfaces.nsIEventQueueService;
 var eqs = Components.classes["@mozilla.org/event-queue-service;1"]
                     .getService(nsIEventQueueService);  
 eqs.createMonitoredThreadEventQueue();

Then, after the event queue is setup, using the synchronous load 
mechanism should work as expected.

-Darin
jmp wrote:
Right...
I've got my facts wrong. This code works fine with Mozilla 1.4.2 and 1.7.2.
However, and this is why I got confused: I have put this code into an XPCOM Compoment. 
If the XPCOM component is loaded from a XUL dialog: everything is cool... but if this 
is loaded from a JS started with xpcshell, then it doesn't quite work anymore. 
Actually, the document loading work, but I cannot query anything using 
nsIDOMXPathEvaluator...
any ideas ???
Thanks
 

  nntp://news.mozilla.org/netscape.public.dev.xml/<[EMAIL PROTECTED]>
Hi,
What is the best/recommended way of loading XML from a cpp mozilla application?
{
NS_DEFINE_CID(kXMLDocumentCID, NS_XMLDOCUMENT_CID);
nsCOMPtr<nsIDOMXMLDocument> pXMLDoc;
do_CreateInstance(kXMLDocumentCID, &rv);
pXMLDoc->SetAsync( false );
PRBool retval = false;
NS_NAMED_LITERAL_STRING(url , "http://mysite/myxml"; );
pXMLDoc->Load( url , &retval );
}
Seems to work, but then when I use the nsCOMPtr<nsIDOMXPathEvaluator> to query the XML 
node, I always get an empty result set(stepped down to no document owner....) So i assume 
this is not the way to do it anymore (used to work with Mozilla 1.4.2, but not with mozilla 
1.7.2).
What is the best/recommented practice to do this ?
Thanks
JM


[netscape.public.dev.xml]
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