Re: IFrame: pyxpcom broken or not implemented yet?

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I think I can add something to this issue...I´ve been knocking my head against the wall for a couple of days trying to do exactly what Torsten was trying to do...access the iframe.contentDocument, but I failed miserably (I ended resorting to a hack, which is to make the document inside the frame report its document to a Python Singleton which is then accesible to the parent of the iframe).
I even implemented a short script that gets a list of all available interfaces and queries them from an object, and sees if they fail or not...I tried this on the iframe object (and on the browser object), but I did not get any useful interface besides the DOMNodes and DomElement interfaces that were already mentioned.

By the way, thanks for the development of the python extension, I´m actually trying to use it as it is to make a real world app...

Gabriel.

Mark Hammond escribió:

This is because the DOM objects don't all support exposing their class info in a generic (ie, non-JS) way.  The work I'm doing on the DOM_AGNOSTIC branches has some hacks to work around this (but it does so by looking at the 'tagName' - and iframe's aren't supported!)

 

So the meta-work-around is to work out what interface you want to use, and explicitly QueryInterface for that interface.  For example, a text box would require a QI for components.interfaces.nsIDOMXULTextBoxElement (I'm afraid I don't have the iframe interface name handy)

 

Cheers,

 

Mark.

-----Original Message-----
From: pyxpcom-bounces@xxxxxxxxxxxxxxxxxxxxxxxx [mailto:pyxpcom-bounces@xxxxxxxxxxxxxxxxxxxxxxxx]On Behalf Of Torsten Vollrath
Sent: Friday, 2 June 2006 4:56 PM
To: pyxpcom@xxxxxxxxxxxxxxxxxxxxxxxx
Subject: [pyxpcom] IFrame: pyxpcom broken or not implemented yet?

Hi,

I tried to address the document in an Iframe with python. But the object returned by:

 

my_iframe = document.getElementById('my_iframe')

 

has no methods or attributes of the iframe class.(It has the inherited methods from Node)

 

 

Ok it has attributes but they can only be addressed via:

 

my_iframe_src = my_iframe.attributes.item(1).nodeValue # item(0) holds the id

 

I havn't found a workaround for methods, yet.

 

This don't work:

my_iframe.src #__getattr__ error

myiframe.contentDocument #__getattr__ error

document.frames[0] #r__getitem__ error; (frames.item)Attribute item doesn't exist

 

I tried the same commands in _javascript_ and they work like intended.

 

I might try to pass the reference from inside the iframe through python module object structure, but i would prefer to understand whats wrong with iframe.

So, did I do anything wrong, or is iframe realy "broken"/not implemented yet ?

 

 

The Xul Element "Label" has the same problems: Attributes can only be reached through the above backdoor.

(Other elements work like intended in python)

Bye,
Torsten

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