Hi,
I've been using QML for a small personal utility program which uses a service
that replies in XML. Parsing the XML via XmlListModel didn't work due to its
limitations - mainly due to nested data and that I need the strict ordering of
child nodes, hopefully some help will come via:
http://bugreports.qt.nokia.com/browse/QTBUG-12953 .
As a workaround I wrote a separate XML parser using XMLHttpRequest and
traversed the response XML document via the means available through the reduced
DOM API. This populates a ListModel that can be shown to the end user via
ListView. This is working fine, but I'm facing additional hurdles:
(0. The DOM API could be more complete, now the JS I wrote is not exactly
pretty)
1. In my case the server response document can take a while to process -
few seconds on embedded devices -> I'd like to use WorkerScript to prevent the
UI getting stuck, but I can't: "If a list model is to be accessed from a
WorkerScript, it cannot contain list data." Well, that is exactly the case I
have and I can't modify the ListModel to work without list data
2. While looking at WorkerScript I noticed that I couldn't pass the
responseXML to the WorkerScript via SendMessage. WorkerScript gets stuck when
trying to access the object - e.g. "response.childNodes.length". Moving the
whole XMLHttpRequest to WorkerScript doesn't work either ("TypeError: Result of
expression 'doc.responseXML' [null] is not an object.")
If WorkerScript is out of the game, what can I do to maintain UI
responsiveness? I've managed to stay out of writing C++ extensions till now :).
Best Regards,
Ari
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