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/*
* <copyright>
*
* Copyright (c) 2005-2006 Sven Efftinge (http://www.efftinge.de) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sven Efftinge (http://www.efftinge.de) - Initial API and implementation
*
* </copyright>
*/
package org.eclipse.xtend.check.ui.editor.codeassist;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.internal.xtend.check.codeassist.CheckFastAnalyzer;
import org.eclipse.internal.xtend.expression.codeassist.ExpressionProposalComputer;
import org.eclipse.internal.xtend.expression.codeassist.ExtensionImportProposalComputer;
import org.eclipse.internal.xtend.expression.codeassist.ProposalFactory;
import org.eclipse.internal.xtend.expression.codeassist.TypeProposalComputer;
import org.eclipse.internal.xtend.xtend.XtendFile;
import org.eclipse.internal.xtend.xtend.codeassist.Partition;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.jface.text.contentassist.IContextInformation;
import org.eclipse.jface.text.contentassist.IContextInformationValidator;
import org.eclipse.ui.IEditorPart;
import org.eclipse.xtend.expression.ExecutionContext;
import org.eclipse.xtend.shared.ui.Activator;
import org.eclipse.xtend.shared.ui.core.IXtendXpandProject;
import org.eclipse.xtend.shared.ui.core.IXtendXpandResource;
import org.eclipse.xtend.shared.ui.expression.editor.codeassist.AbstractExtXptContentAssistProcessor;
import org.eclipse.xtend.shared.ui.expression.editor.codeassist.ProposalComparator;
/**
* @author Sven Efftinge (http://www.efftinge.de)
*/
public class CheckContentAssistProcessor extends AbstractExtXptContentAssistProcessor {
public CheckContentAssistProcessor(final IEditorPart editor) {
super(editor);
}
@Override
protected ICompletionProposal[] internalComputeCompletionProposals(final ITextViewer viewer,
final int documentOffset) {
String part = viewer.getDocument().get().substring(0, documentOffset);
ExecutionContext ctx = Activator.getExecutionContext(getJavaProject());
final Partition p = CheckFastAnalyzer.computePartition(part);
final ProposalFactory factory = new CheckProposalFactoryEclipseImpl(documentOffset);
List proposals = new ArrayList();
if (p == Partition.EXPRESSION) {
ctx = CheckFastAnalyzer.computeExecutionContext(part, ctx);
final int i = part.lastIndexOf(';');
if (i != -1) {
part = part.substring(i);
}
proposals.addAll(new ExpressionProposalComputer().computeProposals(part, ctx, factory));
// proposals.addAll(new KeywordProposalComputer().computeProposals(part, ctx,
// factory));
} else if (p == Partition.TYPE_DECLARATION) {
ctx = CheckFastAnalyzer.computeExecutionContext(part, ctx);
proposals = new TypeProposalComputer().computeProposals(part, ctx, factory);
} else if (p == Partition.EXTENSION_IMPORT) {
IXtendXpandProject project = Activator.getExtXptModelManager().findProject(getFile());
IXtendXpandResource[] resources = project.getAllRegisteredResources();
Set<String> extensionNames = new HashSet<String>();
for (IXtendXpandResource resource : resources) {
if (resource instanceof XtendFile) {
extensionNames.add(resource.getFullyQualifiedName());
}
}
proposals = new ExtensionImportProposalComputer().computeProposals(part, ctx, factory, extensionNames);
} else if (p == Partition.DEFAULT) {
proposals = new KeywordProposalComputer().computeProposals(part, ctx, factory);
}
Collections.sort(proposals, new ProposalComparator());
return (ICompletionProposal[]) proposals.toArray(new ICompletionProposal[proposals.size()]);
}
/**
* {@inheritDoc}
*/
public IContextInformation[] computeContextInformation(final ITextViewer viewer, final int documentOffset) {
return null;
}
/**
* {@inheritDoc}
*/
public char[] getCompletionProposalAutoActivationCharacters() {
return new char[] { '.' };
}
/**
* {@inheritDoc}
*/
public char[] getContextInformationAutoActivationCharacters() {
return null;
}
/**
* {@inheritDoc}
*/
public String getErrorMessage() {
return null;
}
/**
* {@inheritDoc}
*/
public IContextInformationValidator getContextInformationValidator() {
return null;
}
}
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