如何使用IContentAssistProcessor在自动完成中显示addicional信息弹出窗口

Question

I created a custom eclipse editor ( AbstractDecoratedTextEditor ) and I implemented an auto-complete feature using IContentAssistProcessor .

In the class thats extends IContentAssistProcessor , I overrided the method computeCompletionProposals that returns a list of ICompletionProposal .

But when the auto-complete dialog is running, I cant show the additional information in yellow dialog like in Java.

For example, in Java I have the Javadoc dialog:

But in my custom auto-complete I cant create this yellow dialog to show additional information.

How can I create this dialog?

Answer 1

For the additional information popup to show, you need two things:

1. ICompletionProposal#getAdditionalProposalInfo() must return a string that contains the information, that's what you probably already have.
2. the ContentAssistant that is used to show the proposals must have an IInformationControlCreator set. Use contentAssistant.setInformationControlCreator() to assign one. Here is an example of an information control creator:

class SimpleInformationControlCreator implements IInformationControlCreator {
  public IInformationControl createInformationControl( Shell shell ) {
    return new DefaultInformationControl( shell, true );
  }
}