Re: [Nvda-dev] [NVDA] #734: iTunes Store is inaccessible with NVDA

[James T. <ja...@nv...>]

On 29/06/2010 3:00 AM, Dominic Mazzoni wrote:
> Just curious, Window-Eyes seems to load a virtual buffer for the iTunes
> Store - since it seems to let you switch between browse and focus modes.
> How does it do it without IAccessible2?
I suspect they must keep references to all of the IAccessible objects so 
that they can query them or perform actions on them at a later stage. I 
have no idea how they handle dynamic content, as events provide a child 
ID and there's no way to get a child ID from WebKit IAccessibles. Maybe 
they don't handle dynamic content.

Anyway, because NVDA has both in-process and out-of-process components, 
our virtual buffer design has two separate components and relies on us 
being able to get objects using unique identifiers, rather than holding 
IAccessible objects. We *might* be able to change this, but it isn't 
really worth the redesign, especially when there would be missing 
functionality anyway.

Jamie

-- 
James Teh
Vice President
NV Access Inc, ABN 61773362390
Email: ja...@nv...
Web site: http://www.nvaccess.org/