org.eclipse.xtext.ui.editor.contentassist.PrefixMatcher Java Examples

@Override
protected FQNPrefixMatcher createMatcher() {
	IgnoreCase ignoreCase = new PrefixMatcher.IgnoreCase();
	FQNPrefixMatcher result = new FQNPrefixMatcher();
	result.setDelegate(ignoreCase);
	result.setLastSegmentFinder(new FQNPrefixMatcher.LastSegmentFinder() {
		@Override
		public String getLastSegment(String fqn, char delimiter) {
			int i = fqn.lastIndexOf(delimiter);
			if (i >= 0) {
				if (i != fqn.length() - 1)
					return fqn.substring(i + 1);
				return "";
			}
			return fqn;
		}
	});
	return result;
}
 

/***/
// NOTE: Xtext's FQNPrefixMatcher injects PrefixMatcher.IgnoreCase, not PrefixMatcher, so we have to follow suit:
@Inject
public PrefixMatcherHelper(PrefixMatcher.IgnoreCase prefixMatcher) {
	if (!(prefixMatcher instanceof N4JSPrefixMatcher)) {
		throw new IllegalStateException("wrong injection setup: "
				+ "PrefixMatcher.IgnoreCase is expected to be bound to "
				+ N4JSPrefixMatcher.class.getSimpleName() + " but is bound to "
				+ prefixMatcher.getClass().getName());
	}
	this.prefixMatcher = prefixMatcher;
	this.canDoCamelCaseMatch = ((N4JSPrefixMatcher) prefixMatcher).isJdtAvailable();
}
 

@Override
public void completeReferencedMetamodel_EPackage(EObject model, Assignment assignment,
		final ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
	super.completeReferencedMetamodel_EPackage(model, assignment, context.copy().setMatcher(new PrefixMatcher() {

		@Override
		public boolean isCandidateMatchingPrefix(String name, String prefix) {
			if (prefix.startsWith("\"")) {
				if (prefix.length() == 1)
					prefix = "";
				else {
					prefix = prefix.substring(1);
					if (prefix.endsWith("\"")) {
						prefix = prefix.substring(0, prefix.length() - 1);
					}
				}
			}
			name = getValueConverter().toValue(name, "STRING", null).toString();
			if (context.getMatcher().isCandidateMatchingPrefix(name, prefix))
				return true;
			try {
				URI uri = URI.createURI(name);
				if (context.getMatcher().isCandidateMatchingPrefix(uri.lastSegment(), prefix))
					return true;
			} catch (Exception e) {
				// ignore
			}
			return false;
		}

	}).toContext(), acceptor);
}
 

@Override
protected FQNPrefixMatcher createMatcher() {
	IgnoreCase ignoreCase = new PrefixMatcher.IgnoreCase();
	FQNPrefixMatcher result = new FQNPrefixMatcher();
	result.setDelegate(ignoreCase);
	result.setLastSegmentFinder(new FQNPrefixMatcher.DefaultLastSegmentFinder());
	return result;
}
 

@Override
protected StringMatcher createStringMatcher(String pattern) {
	FQNPrefixMatcher fqnPrefixMatcher = new FQNPrefixMatcher();
	fqnPrefixMatcher.setLastSegmentFinder(new FQNPrefixMatcher.DefaultLastSegmentFinder());
	fqnPrefixMatcher.setDelegate(new PrefixMatcher.CamelCase());
	return new PrefixMatcherOutlineAdapter(pattern, fqnPrefixMatcher);
}
 

public PrefixMatcherOutlineAdapter(String prefix, PrefixMatcher strategy) {
	super("", true);
	this.prefix = prefix;
	this.prefixParts = splitIntoParts(prefix);
	this.strategy = strategy;
	this.prefixStringMatcher = new StringMatcher(prefix, true);
	stringMatchers = Lists.newArrayList();
	for(String part: prefixParts) {
		stringMatchers.add(new StringMatcher(part, true));
	}
}
 

public void complete_ID(EObject model, RuleCall ruleCall, final ContentAssistContext context,
		ICompletionProposalAcceptor acceptor) {
	if (doCreateIdProposals()) {
		PrefixMatcher newMatcher = new PrefixMatcher() {
			@Override
			public boolean isCandidateMatchingPrefix(String name, String prefix) {
				String strippedName = name;
				if (name.startsWith("^") && !prefix.startsWith("^")) {
					strippedName = name.substring(1);
				}
				return context.getMatcher().isCandidateMatchingPrefix(strippedName, prefix);
			}
		};
		ContentAssistContext myContext = context.copy().setMatcher(newMatcher).toContext();
		String feature = getAssignedFeature(ruleCall);
		String proposalText = feature != null ? feature : Strings.toFirstUpper(ruleCall.getRule().getName().toLowerCase());
		String displayText = proposalText;
		if (feature != null)
			displayText = proposalText + " - " + ruleCall.getRule().getName();
		proposalText = getValueConverter().toString(proposalText, ruleCall.getRule().getName());
		ICompletionProposal proposal = createCompletionProposal(proposalText, displayText, null, myContext);
		if (proposal instanceof ConfigurableCompletionProposal) {
			ConfigurableCompletionProposal configurable = (ConfigurableCompletionProposal) proposal;
			configurable.setSelectionStart(configurable.getReplacementOffset());
			configurable.setSelectionLength(proposalText.length());
			configurable.setAutoInsertable(false);
			configurable.setSimpleLinkedMode(myContext.getViewer(), '\t', ' ');
		}
		acceptor.accept(proposal);
	}
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher.CamelCase> bindPrefixMatcher$CamelCase() {
	return EscapeSequenceAwarePrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public AttributeValueMatcher(PrefixMatcher originalMatcher) {
	this.originalMatcher = originalMatcher;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher.CamelCase> bindCamelCasePrefixMatcher() {
	return EscapeSequenceAwarePrefixMatcher.class;
}
 

protected ICompletionProposal createOverrideMethodProposal(XtendTypeDeclaration model, IResolvedExecutable overrideable,
		final ContentAssistContext context, IProposalConflictHelper conflictHelper) {
	IXtextDocument document = context.getDocument();
	XtextResource resource = (XtextResource) model.eResource();
	int offset = context.getReplaceRegion().getOffset();
	int currentIndentation = appendableFactory.getIndentationLevelAtOffset(offset, document, resource);
	final int indentationLevel = currentIndentation == 0 ? 1 : currentIndentation;
	ReplacingAppendable appendable = appendableFactory.create(document, resource, offset, context.getReplaceRegion().getLength(), new OptionalParameters() {{ 
				ensureEmptyLinesAround = true;
				baseIndentationLevel = indentationLevel;	
			}});
	final String simpleName;
	JvmExecutable declaration = overrideable.getDeclaration();
	if (overrideable instanceof IResolvedOperation) {
		implementor.appendOverrideFunction(model, (IResolvedOperation) overrideable, appendable);
		simpleName = overrideable.getDeclaration().getSimpleName();
	} else if (model instanceof XtendClass) {
		implementor.appendConstructorFromSuper((XtendClass) model, (IResolvedConstructor) overrideable, appendable);
		simpleName = "new";
	} else {
		return null;
	}
	String code = appendable.getCode();
	if (!isValidProposal(code.trim(), context, conflictHelper) && !isValidProposal(simpleName, context, conflictHelper))
		return null;
	ImageDescriptor imageDescriptor = images.forOperation(declaration.getVisibility(), adornments.getOverrideAdornment(declaration));
	ImportOrganizingProposal completionProposal = createCompletionProposal(appendable, context.getReplaceRegion(),
			getLabel(overrideable), imageHelper.getImage(imageDescriptor));
	Matcher matcher = bodyExpressionPattern.matcher(code);
	if (matcher.find()) {
		int bodyExpressionLength = matcher.end(1) - matcher.start(1);
		int bodyExpressionStart = matcher.start(1) + appendable.getTotalOffset() - completionProposal.getReplacementOffset();
		if (bodyExpressionLength == 0) {
			completionProposal.setCursorPosition(bodyExpressionStart);
		} else {
			completionProposal.setSelectionStart(completionProposal.getReplacementOffset() + bodyExpressionStart);
			completionProposal.setSelectionLength(bodyExpressionLength);
			completionProposal.setAutoInsertable(false);
			completionProposal.setCursorPosition(bodyExpressionStart + bodyExpressionLength);
			completionProposal.setSimpleLinkedMode(context.getViewer(), '\t');
		}
	}
	completionProposal.setPriority(getPriority(model, declaration, context));
	completionProposal.setMatcher(new PrefixMatcher() {

		@Override
		public boolean isCandidateMatchingPrefix(String name, String prefix) {
			PrefixMatcher delegate = context.getMatcher();
			boolean result = delegate.isCandidateMatchingPrefix(simpleName, prefix);
			return result;
		}
		
	});
	return completionProposal;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}
 

public Class<? extends PrefixMatcher> bindPrefixMatcher() {
	return FQNPrefixMatcher.class;
}