On 07/07/08 11:14 PM, "Charles Srstka" <[EMAIL PROTECTED]> wrote:
> I'm not sure what you're referring to with regards to "accessibility off". If
> you are referring to the "Allow access for assistive devices" check box in
> the Universal Access preference pane, that isn't what I was talking about at
> all.
That is what I was talking about. The Dictionary service will work if "Allow
access for assistive devices" is deselected (off).
> What I did was implement the methods in the NSAccessibility informal
> protocol such as accessibilityAttributeNames, accessibilityAttributeValue:,
> accessibilityAttributeValue:forParameter:, and the rest. Implementing these
> after having implemented NSTextInput caused the Dictionary service to start
> working with my custom view.
Sure, but when "Allow access for assistive devices" is deselected, those
methods will (should!) not be called.
>
> I know that the Dictionary service *does* apparently make use of the
> accessibility APIs, as if I set a breakpoint in the accessibility methods,
> they get called quite a bit when one invokes the Dictionary service via
> command-control-D with the mouse cursor over my view.
Sure, it uses (possibly requires) NSTextInput (TSM & document access events)
support, and (optionally) accessibility to do it's thing. If accessibility
isn't available ("Allow access for assistive devices" deselected, or the
app/editing view doesn't support access to text via accessibility), the
Dictionary service will work using only NSTextInput.
See what happens if you deselect "Allow access for assistive devices" - as
long as your NSTextInput implementation is complete (enough for the
Dictionary service, anyway), it should still work.
Evan
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