[news.eclipse.platform] Re: rich text in content assist additional info

[Daniel Megert <daniel_megert@xxxxxxxxxx>]

Xavier Décoret wrote:

> Daniel Megert a écrit :
>
> > Xavier Décoret wrote:
> >
> > > Hi,
> > >
> > > I am trying to display rich text in additional info of a 
> > > CompletionProposal, but this does not work:
> > >
> > >                     result.add(new 
> > > CompletionProposal(candidate,o,offset-o,candidate.length(),
> > >                             null,
> > >                             candidate,
> > >                             null,
> > >                             "Additional <em>info</em> with 
> > > <b>tags</b>"));
> > >
> > >
> > > Does anyone know how to do this?
> >
> >
> > Either your proposal or your content assistant must use an 
> > information control creator that can handle those tags. As a 
> > reference take a look at
> >    
> > JavaSourceViewerConfiguration.getInformationControlCreator(ISourceViewer) 
> >
> >    JavaSourceViewerConfiguration.getContentAssistant(ISourceViewer)
> >
> > Dani
>
>
> That's what I ended up doing:
>
>     public IContentAssistant getContentAssistant(ISourceViewer 
> sourceViewer) {
>
>         ContentAssistant assistance = new ContentAssistant();
>         MyContentAssistProcessor qcp = new MyContentAssistProcessor();
>
> assistance.setContentAssistProcessor(qcp,IDocument.DEFAULT_CONTENT_TYPE);
>         assistance.setInformationControlCreator(new 
> IInformationControlCreator() {
>             @SuppressWarnings("restriction")
>             public IInformationControl createInformationControl(Shell 
> parent) {
>                 return new DefaultInformationControl(parent, new 
> HTMLTextPresenter());
>             }
>         });
>         assistance.enableAutoActivation(true);
>         assistance.setAutoActivationDelay(500);
>
> assistance.setProposalPopupOrientation(IContentAssistant.PROPOSAL_OVERLAY); 
>
>         return assistance;
>     }
>
> where I use the HTMLTextPresenter of package 
> org.eclipse.jface.internal.text.link.contentassist but I have two 
> problems:
>
> - First Eclipse (3.2) give me a warning (hence the 
> @SuppressWarnings("restriction")) so I guess I am doing this wrong

Correct, because this is internal non-API code.

> - The above HTMLTextPresenter only support a very basic subset of HTML.

That's why it is internal. It only handles a minimal set that fitted to 
our needs.

> I am missing something?

Nope, but if you can live with a dependency to JDT UI then you could get 
it via JavaSourceViewerConfiguration. This is even better because it 
uses an HTML Browser as information control and hence can handle all html.

Dani