Example usage for org.eclipse.jdt.core CompletionProposal setParameterNames

Introduction

In this page you can find the example usage for org.eclipse.jdt.core CompletionProposal setParameterNames.

Prototype

public void setParameterNames(char[][] parameterNames) 

Source Link

Document

Sets the method parameter names.

Usage

From source file:org.bonitasoft.studio.groovy.ui.contentassist.VariablesTypeCompletionProposal.java

License:Open Source License

@Override
public List<ICompletionProposal> computeCompletionProposals(final ContentAssistInvocationContext context,
        final IProgressMonitor monitor) {
    final List<ICompletionProposal> list = new ArrayList<ICompletionProposal>();
    if (context instanceof JavaContentAssistInvocationContext) {
        final ICompilationUnit unit = ((JavaContentAssistInvocationContext) context).getCompilationUnit();
        if (unit instanceof GroovyCompilationUnit) {
            final ITextViewer viewer = context.getViewer();
            final List<ScriptVariable> nodes = (List<ScriptVariable>) viewer.getTextWidget()
                    .getData(GroovyViewer.PROCESS_VARIABLES_DATA_KEY);
            final List<String> keyWords = (List<String>) viewer.getTextWidget()
                    .getData(GroovyViewer.BONITA_KEYWORDS_DATA_KEY);
            if (((GroovyCompilationUnit) unit).getModuleNode() == null) {
                return Collections.emptyList();
            }/*w  w  w.ja va 2s . c  o  m*/
            final ContentAssistContext assistContext = new GroovyCompletionProposalComputer()
                    .createContentAssistContext((GroovyCompilationUnit) unit, context.getInvocationOffset(),
                            context.getDocument());
            CharSequence prefix = null;
            try {
                prefix = context.computeIdentifierPrefix();
            } catch (final BadLocationException e) {
                BonitaStudioLog.error(e);
            }

            if (assistContext != null && assistContext.completionNode instanceof VariableExpression) {
                try {
                    final VariableExpression expr = (VariableExpression) assistContext.completionNode;
                    if (nodes != null) {
                        for (final ScriptVariable f : nodes) {
                            if (expr.getName().equals(f.getName())) {
                                final IType type = javaProject.findType(f.getType());
                                for (final IMethod m : type.getMethods()) {
                                    if (m.getElementName().startsWith(prefix.toString())) {
                                        final CompletionProposal proposal = CompletionProposal.create(
                                                CompletionProposal.METHOD_REF, context.getInvocationOffset());
                                        proposal.setName(m.getElementName().toCharArray());
                                        proposal.setCompletion(
                                                m.getElementName().substring(prefix.length()).toCharArray());
                                        proposal.setFlags(m.getFlags());

                                        if (prefix.length() == m.getElementName().length()) {
                                            proposal.setReplaceRange(context.getInvocationOffset(),
                                                    context.getInvocationOffset());
                                            proposal.setReceiverRange(0, 0);
                                        } else {
                                            proposal.setReplaceRange(
                                                    context.getInvocationOffset() - prefix.length(),
                                                    context.getInvocationOffset());
                                            proposal.setReceiverRange(prefix.length(), prefix.length());
                                        }

                                        final char[][] parameters = new char[m.getParameterNames().length][256];
                                        for (int i = 0; i < m.getParameterNames().length; i++) {
                                            parameters[i] = m.getParameterNames()[i].toCharArray();
                                        }

                                        proposal.setParameterNames(parameters);
                                        proposal.setDeclarationSignature(
                                                Signature
                                                        .createTypeSignature(
                                                                m.getDeclaringType().getElementName(), true)
                                                        .toCharArray());
                                        proposal.setSignature(Signature
                                                .createMethodSignature(m.getParameterTypes(), m.getReturnType())
                                                .toCharArray());
                                        list.add(new JavaMethodCompletionProposal(proposal,
                                                (JavaContentAssistInvocationContext) context));
                                    }
                                }
                            }
                        }
                    }
                    if (keyWords != null) {
                        for (final String keyWord : keyWords) {
                            if (expr.getName().equals(keyWord)) {
                                final IType type = javaProject.findType(
                                        BonitaSyntaxHighlighting.getTypeForKeyWord(keyWord).getName());
                                for (final IMethod m : type.getMethods()) {
                                    if (m.getElementName().startsWith(prefix.toString())) {
                                        final CompletionProposal proposal = CompletionProposal.create(
                                                CompletionProposal.METHOD_REF, context.getInvocationOffset());
                                        proposal.setName(m.getElementName().toCharArray());
                                        proposal.setCompletion(
                                                m.getElementName().substring(prefix.length()).toCharArray());
                                        proposal.setFlags(m.getFlags());
                                        proposal.getCompletion();

                                        if (prefix.length() == m.getElementName().length()) {
                                            proposal.setReplaceRange(context.getInvocationOffset(),
                                                    context.getInvocationOffset());
                                            proposal.setReceiverRange(0, 0);
                                        } else {
                                            proposal.setReplaceRange(
                                                    context.getInvocationOffset() - prefix.length(),
                                                    context.getInvocationOffset());
                                            proposal.setReceiverRange(prefix.length(), prefix.length());
                                        }

                                        final char[][] parameters = new char[m.getParameterNames().length][256];
                                        for (int i = 0; i < m.getParameterNames().length; i++) {
                                            parameters[i] = m.getParameterNames()[i].toCharArray();
                                        }

                                        proposal.setParameterNames(parameters);
                                        proposal.setDeclarationSignature(
                                                Signature
                                                        .createTypeSignature(
                                                                m.getDeclaringType().getElementName(), true)
                                                        .toCharArray());
                                        proposal.setSignature(Signature
                                                .createMethodSignature(m.getParameterTypes(), m.getReturnType())
                                                .toCharArray());
                                        list.add(new JavaMethodCompletionProposal(proposal,
                                                (JavaContentAssistInvocationContext) context));
                                    }
                                }
                            }
                        }
                    }
                } catch (final JavaModelException e) {
                    BonitaStudioLog.error(e);
                }

            }
        }

        return list;
    }

    return Collections.emptyList();
}

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