[news.eclipse.platform] Re: enabledWhen for handlers and editors

[Karl Koster <klkoster@xxxxxxxxxxxxx>]

Paul,

Thank you very much for this information. It was exactly what I was 
looking for.

Karl

Paul Webster wrote:
> Karl Koster wrote:
> > This is the contents of the expression definitions extension point:
> >
> > There are property testers for the properties org.kdr.isNew, 
> > org.kdr.isDirty, and org.kdr.isAllowed.
>
> An expression containing the segment below will be re-evaluated when the 
> variable changes ... so when a new active editor is selected.
>          <with
>                variable="activeEditor">
>             <test
>                   property="org.kdr.isDirty"
>                   value="true">
>             </test>
>          </with>
>
> This will not get re-evaluated if the current active editor simply goes 
> dirty.  You would have to use 
> org.eclipse.ui.services.IEvaluationService.requestEvaluation(String) at 
> the appropriate time to request a re-evaluation of expressions 
> containing your property.
>
> PW