Re: Accessibility children: all or visible
Re: Accessibility children: all or visible
- Subject: Re: Accessibility children: all or visible
- From: James Dempsey <email@hidden>
- Date: Tue, 22 Apr 2008 11:15:46 -0700
On Apr 22, 2008, at 10:42 AM, Christiaan Hofman wrote:
Is it important that the Children attribute returns all the children
of a view, or would it be OK to return only the currently available
children? In my app getting all the children may be pretty slow,
while there are usually just a few child elements visible at a time.
The data is divided in pages, and the display only reads the pages
that are needed for display. Could I do the same with the accessible
children, and only return the children of my view that are contained
in the visible pages? Or doesn't accessibility care too much about
the visible area?
Thanks,
Christiaan
It is expected that all children would be returned from AXChildren.
There is an AXVisibleChildren attribute, but it is defined only for
AXRow/AXTableRow/AXOutlineRow, AXMenu, AXMenuBar, AXRadioGroup, and
AXList.
I don't know if VoiceOver looks for that attribute dynamically on
something like AXGroup and uses it, or not.
-James
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James Dempsey
AppKit Engineering
Apple
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