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custom content assist help needed [message #809349]

Tue, 28 February 2012 19:32

Phil R

Messages: 99
Registered: September 2011

Member

Hi,

The default content assist gives the correct proposals but I would like to change it string output. I have done custom scoping to get a correct visibility so I don't want to reconstruct all loops etc for content assist because it works in fact out of the box now. Is there an easy way to just change the string outputs of the proposals?

@Override
	public void complete_PredicateTerminal(EObject model, RuleCall ruleCall,
			ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
		// how to easy modify proposal string output from default xtext content assist?
		// using model I need to reconstruct everything so is there no other option?
		super.complete_PredicateTerminal(model, ruleCall, context, acceptor);
	}

Regards,
Phil

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Re: custom content assist help needed [message #809353 is a reply to message #809349]

Tue, 28 February 2012 19:36

Christian Dietrich

Messages: 13423
Registered: July 2009

Senior Member

Hi,

what do you mean with "string" output? can you give an example what you exactly want to do.

~Christian

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: custom content assist help needed [message #809374 is a reply to message #809353]

Tue, 28 February 2012 20:08

Phil R

Messages: 99
Registered: September 2011

Member

Hi Christian,
like:

acceptor.accept(createCompletionProposal(str_name, str_name,  ns, context));

there the str_name I would like to customize for the default proposals of xtext

Phil

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Re: custom content assist help needed [message #809380 is a reply to message #809374]

Tue, 28 February 2012 20:17

Christian Dietrich

Messages: 13423
Registered: July 2009

Senior Member

Hi,

which kind of default proposals? for terminals? for keywords? for cross refs?
these are all handeled differently. so which is your case?

~Christian

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: custom content assist help needed [message #809383 is a reply to message #809380]

Tue, 28 February 2012 20:21

Phil R

Messages: 99
Registered: September 2011

Member

for cross refs:

PredicateTerminal:
	predicate=[TypePredDeclaration|FQN] ('(' right=TermTuple? ')')?
;

Phil

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Re: custom content assist help needed [message #809385 is a reply to message #809383]

Tue, 28 February 2012 20:23

Christian Dietrich

Messages: 13423
Registered: July 2009

Senior Member

hi,

what about overriding DefaultProposalCreator and return the sublass in org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.getProposalFactory(String, ContentAssistContext)

~Christian

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: custom content assist help needed [message #809395 is a reply to message #809385]

Tue, 28 February 2012 20:40

Phil R

Messages: 99
Registered: September 2011

Member

Hi Christian, thx DefaultProposalCreator has useful code. So then I'm able to adjust the "apply" method at the line :

result = createCompletionProposal(proposal, displayString, image, contentAssistContext);

, just what I needed.
But how to return the subclass if I can't modify AbstractJavaBasedContentProposalProvider or should I also override it?
Will it not affect other content proposals? I need it for a couple of cross reference proposals but not all of them

Regards,
Phil

[Updated on: Tue, 28 February 2012 20:48]

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