Re: Registering of a new ContextGlobalProvider implementation

Yes, you probably want the contents of the selected TopComponent's Lookup,
not just the selected TopComponent, in the selection context.

The recipe for that is similar to what you have, but:

 - Instead of an AbstractLookup, use a ProxyLookup subclass that exposes a
method that calls (protected final) setLookups() so you can call it from
your setter
 - Call that with the result of your TopComponent's getLookup() method

-Tim


On Fri, Dec 4, 2015 at 3:52 AM, Casqueiro Gilles <
[email protected]> wrote:

> Hi Tim,
>
>
>
> I tried to follow your tutorial in order to change the selection model. As
> it is not currently online I used this version:
> https://web.archive.org/web/20101023185130/http://weblogs.java.net/blog/2007/01/23/how-replace-selection-model-netbeans-platform
> <https://web.archive.org/web/20101023185130/http:/weblogs.java.net/blog/2007/01/23/how-replace-selection-model-netbeans-platform>
>
>
>
> It looks like the service isn’t correctly registered, here is what I did:
>
>
>
> First I have the custom implementation of the ContextGlobalProvider:
>
>
>
> package com.bracco.qihc.selectionModel;
>
>
>
> import com.bracco.qihc.combinedResult.CombinedResultTopComponent;
>
> import org.openide.util.ContextGlobalProvider;
>
> import org.openide.util.Lookup;
>
> import org.openide.util.lookup.AbstractLookup;
>
> import org.openide.util.lookup.InstanceContent;
>
>
>
> public final class QihcContextProvider implements ContextGlobalProvider {
>
>
>
>     private final InstanceContent ic = new InstanceContent();
>
>     private final Lookup lkp = new AbstractLookup(ic);
>
>
>
>     public Lookup getLookup() {
>
>         return lkp;
>
>     }
>
>
>
>     @Override
>
>     public Lookup createGlobalContext() {
>
>         return lkp;
>
>     }
>
>
>
>     public void setCombinedResultTopComponent (CombinedResultTopComponent
> combinedResultTopComponent) {
>
>         CombinedResultTopComponent old =
> lkp.lookup(CombinedResultTopComponent.class);
>
>         if (combinedResultTopComponent != null) {
>
>             if (old != null) {
>
>                 ic.remove(old);
>
>             }
>
>             ic.add(combinedResultTopComponent);
>
>         }
>
>     }
>
> }
>
>
>
>
>
> And then I have the service provider configuration file called
> org.openide.util.ContextGlobalProvider and placed at the root of the src
> folder (<default package>), it contains this:
>
>
>
> #-org.netbeans.modules.openide.windows.GlobalActionContextImpl
>
> com.bracco.qihc.selectionModel.QihcContextProvider
>
>
>
> Do you see something wrong?
>
>
>
> Gilles
>
>
>
>
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