Re: IFrame: pyxpcom broken or not implemented yet?

Hm,
like Gabriel, I can't find more than basic interfaces for Iframe in pyxpcom.
(Used the list generated by interfaceInfoManager.EnumerateInterfaces() )
On Xulplanet the interface nsIAccessibleProvider is listed but not supported by interfaces in pyxpcom?

There are only two interfaces in the full list, that have the word 'Iframe':
nsIIFrameBoxObject
nsIDOMHTMLIFrameElement
Both don't work.

Xulrunner code seems to provide a method named 'contentDocument' only for:
nsIDOMHTMLFrameElement
nsIDOMHTMLIFrameElement
nsIDOMHTMLObjectElement
So, nothing new here...

Any more leads? Maybe get all interfaces provided for Iframe in JS, but still the interfaceInfoManager seems to not support the right one...

And one more:
window.frames
has a length of 1, but I can't access anything in it(.item, .namedItem, []). Query for components.interfaces.nsIDOMWindowCollection is not supported.

Bye,
Torsten

----- Original Message -----

From: Gabriel Jacobo

To: Mark Hammond

Cc: pyxpcom@xxxxxxxxxxxxxxxxxxxxxxxx

Sent: Saturday, June 03, 2006 4:58 AM

Subject: Re: [pyxpcom] IFrame: pyxpcom broken or not implemented yet?

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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