Re: How to call WebKit.DOMDocument.evaluate function in python

[Niranjan Rao <nhrdls gmail com>]

Simon,

Thanks for the pointer. I noticed that I made a stupid mistake and was 
sending document as a first parameter.

Your example opened my eyes and now it looks like its running ok.

Thanks,

Niranjan

On 07/02/2013 02:37 PM, Simon Feltman wrote:
> On Tue, Jul 2, 2013 at 10:35 AM, Niranjan Rao <nhrdls gmail com 
> <mailto:nhrdls gmail com>> wrote:
>
>     And yes, I had tried creating empty WebKit.DOMXPathResult object
>     and passing it. Did not work.
>
>
> It would be helpful to know the details of what didn't work. Code 
> examples of what you have tried, or steps to reproduce the problems 
> you are seeing can be invaluable for getting help. A simple example on 
> my system shows using an empty DOMXPathResult is actually working:
>
> In [1]: from gi.repository import WebKit
> In [2]: view = WebKit.WebView()
> In [3]: dom = view.get_dom_document()
> In [4]: dom.evaluate('/', dom, WebKit.DOMXPathNSResolver(), 0, 
> WebKit.DOMXPathResult())
> Out[4]: <DOMXPathResult object at 0x7fc670b08eb0 (WebKitDOMXPathResult 
> at 0x2ea90f0)>
>
> This is with PyGObject/GTK+ version 3.8.2 (not sure about WebKit 
> version). If this does not work with older versions, supporting a 
> fallback with ctypes hacks sounds reasonable. This would allow support 
> for older versions while ensuring use of proper API on newer versions. 
> If the __gpointer__ attribute is not available or not useful, you can 
> still find the pointer to the GObject by using offsets of the pointer 
> field on the PyGObject wrapper. But code examples of what you have 
> already tried will be needed to further aid you with this.
>
> -Simon