Java Code Examples for org.eclipse.xtext.ide.editor.contentassist.ContentAssistEntry#getProposal()

@Override
public void accept(ContentAssistEntry entry, int priority) {
	if (entry != null) {
		if (entry.getProposal() == null) {
			throw new IllegalArgumentException("proposal must not be null.");
		}
		String entryString = entry.toString();
		if (entries.containsKey(entryString)) {
			Pair<Integer, ContentAssistEntry> existingProposal = entries.get(entryString);
			priority = existingProposal.getKey();
		}
		entries.put(entryString, Pair.of(priority, entry));
	}
}
 

/**
 * Convert to a completion item.
 */
protected CompletionItem toCompletionItem(ContentAssistEntry entry, int caretOffset,
		Position caretPosition, Document document) {
	CompletionItem result = new CompletionItem();
	String label = null;
	if (entry.getLabel() != null) {
		label = entry.getLabel();
	} else {
		label = entry.getProposal();
	}
	result.setLabel(label);
	result.setDetail(entry.getDescription());
	result.setDocumentation(entry.getDocumentation());
	String prefix = null;
	if (entry.getPrefix() != null) {
		prefix = entry.getPrefix();
	} else {
		prefix = "";
	}
	Position prefixPosition = document.getPosition(caretOffset - prefix.length());
	result.setTextEdit(new TextEdit(new Range(prefixPosition, caretPosition), entry.getProposal()));
	if (!entry.getTextReplacements().isEmpty()) {
		if (result.getAdditionalTextEdits() == null) {
			result.setAdditionalTextEdits(new ArrayList<>(entry.getTextReplacements().size()));
		}
		entry.getTextReplacements().forEach(it -> {
			result.getAdditionalTextEdits().add(toTextEdit(it, document));
		});
	}
	if (entry.getKind().startsWith(ContentAssistEntry.KIND_SNIPPET + ":")) {
		result.setInsertTextFormat(InsertTextFormat.Snippet);
		entry.setKind(entry.getKind().substring(ContentAssistEntry.KIND_SNIPPET.length() + 1));
	} else if (Objects.equal(entry.getKind(), ContentAssistEntry.KIND_SNIPPET)) {
		result.setInsertTextFormat(InsertTextFormat.Snippet);
	}
	result.setKind(translateKind(entry));
	return result;
}
 

protected StyledString getDisplayString(ContentAssistEntry entry) {
	StyledString result = new StyledString(entry.getLabel() != null ? entry.getLabel() : entry.getProposal());
	if (!Strings.isNullOrEmpty(entry.getDescription())) {
		result.append(new StyledString(" \u2013 " + entry.getDescription(), StyledString.QUALIFIER_STYLER));
	}
	return result;
}
 

protected CompletionItem toCompletionItem(ContentAssistEntry entry, int caretOffset, Position caretPosition,
		Document document) {
	CompletionItem completionItem = new CompletionItem();
	String label = entry.getLabel();
	if (label == null) {
		label = entry.getProposal();
	}
	completionItem.setLabel(label);
	completionItem.setDetail(entry.getDescription());
	completionItem.setDocumentation(entry.getDocumentation());
	String prefix = entry.getPrefix();
	if (prefix == null) {
		prefix = "";
	}
	int prefixOffset = caretOffset - prefix.length();
	Position prefixPosition = document.getPosition(prefixOffset);
	completionItem.setTextEdit(new TextEdit(new Range(prefixPosition, caretPosition), entry.getProposal()));
	completionItem.setKind(translateKind(entry));
	if (!entry.getTextReplacements().isEmpty()) {
		if (completionItem.getAdditionalTextEdits() == null) {
			completionItem.setAdditionalTextEdits(new ArrayList<>(entry.getTextReplacements().size()));
		}
		entry.getTextReplacements().forEach(
				(ReplaceRegion it) -> completionItem.getAdditionalTextEdits().add(toTextEdit(it, document)));
	}
	if (ContentAssistEntry.KIND_SNIPPET.equals(entry.getKind())) {
		completionItem.setInsertTextFormat(InsertTextFormat.Snippet);
	}
	return completionItem;
}
 

/**
 * Invoke the proposal provider and put the results into a
 * {@link ContentAssistResult} object.
 */
protected ContentAssistResult createProposals(List<ContentAssistContext> contexts, String stateId,
		int proposalsLimit) {
	ContentAssistResult result = new ContentAssistResult(stateId);
	if (!contexts.isEmpty()) {
		Set<Pair<Integer, ContentAssistEntry>> proposals = new HashSet<Pair<Integer, ContentAssistEntry>>();
		IIdeContentProposalAcceptor acceptor = new IIdeContentProposalAcceptor() {
			@Override
			public void accept(ContentAssistEntry entry, int priority) {
				if (entry != null) {
					if (entry.getProposal() == null) {
						throw new IllegalArgumentException("proposal must not be null.");
					}
					proposals.add(Pair.of(priority, entry));
				}
			}

			@Override
			public boolean canAcceptMoreProposals() {
				return proposals.size() < proposalsLimit;
			}
		};
		proposalProvider.createProposals(contexts, acceptor);
		List<Pair<Integer, ContentAssistEntry>> sorted = IterableExtensions.sortWith(proposals,
				(Pair<Integer, ContentAssistEntry> p1, Pair<Integer, ContentAssistEntry> p2) -> {
					int prioResult = p2.getKey().compareTo(p1.getKey());
					if (prioResult != 0) {
						return prioResult;
					}
					String s1 = p1.getValue().getLabel();
					if (s1 == null) {
						s1 = p1.getValue().getProposal();
					}
					String s2 = p2.getValue().getLabel();
					if (s2 == null) {
						s2 = p2.getValue().getProposal();
					}
					return s1.compareTo(s2);
				});
		result.getEntries()
				.addAll(Lists.transform(sorted, (Pair<Integer, ContentAssistEntry> it) -> it.getValue()));
	}
	return result;
}