how to search any keyword from string using jfce AutoCompleteField - swt

Question

I have swt text where in I have written like "new AutoCompleteField (textSearch,new TextContentProvider(), searchList); it works but it finds the strings start with expression. I want to create my own proposal provider where i can write something if my string contains any keyword, i should get autoComplete popup.

Answer 1

You can't use the existing AutoCompleteField for this since you need to change the content proposal provider.
A suitable IContentProposalProvider would be something like:
public class AnyPositionContentProposalProvider implements IContentProposalProvider
{
private final String [] proposals;
public AnyPositionContentProposalProvider(String [] theProposals)
{
proposals = theProposals;
}
#Override
public IContentProposal [] getProposals(String contents, int position)
{
List<IContentProposal> result = new ArrayList<>();
for (String proposal : proposals) {
if (proposal.contains(contents)) {
result.add(new ContentProposal(proposal));
}
}
return result.toArray(new IContentProposal [result.size()]);
}
}
The following methods set this up to work like AutoCompleteField:
// Installs on a Text control
public static void installAnyPositionMatch(Text control, String [] proposals)
{
installAnyPositionMatch(control, new TextContentAdapter(), proposals);
}
// Install on any control with a content adapter
public static void installAnyPositionMatch(Control control, IControlContentAdapter controlContentAdapter, String [] proposals)
{
IContentProposalProvider proposalProvider = new AnyPositionContentProposalProvider(proposals);
ContentProposalAdapter adapter = new ContentProposalAdapter(control, controlContentAdapter, proposalProvider, null, null);
adapter.setPropagateKeys(true);
adapter.setProposalAcceptanceStyle(ContentProposalAdapter.PROPOSAL_REPLACE);
}