Re: Enhancing GTK+ TreeView accessibility

[Bill Cox <waywardgeek gmail com>]

Hi, Li.

On Sun, Jun 6, 2010 at 11:18 PM, Li Yuan <Li Yuan sun com> wrote:
> We have a bug for gailtreeview's performance:
> https://bugzilla.gnome.org/show_bug.cgi?id=577098, and we have done some
> analysis work there.

Hopefully we can help out with this bug over in Vinux land.

> I haven't read the code of gconf-editor, is it text cell or some custom cell
> renderer? If it is a custom cell renderer, gconf-editor should implement the
> accessibility peer. Caching the data is what GAIL does for known cell
> renderers.

Your guess is correct.  Gconf-editor does implement a custom cell
renderer, basically just a wrapper around the existing renderers.  It
selects the renderer to use based on the type of data in the cell.
How would I implement the accessibility peer?

I tested the caching, and you are correct.  I have had a couple of
applications where the checkbox states shown were out of sync with the
values announced.  The fix in those cases was to implement a model
column to represent the checkbox values.  I'll look further into that
next time I run across it.

Thanks,
Bill