| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.internal.ui.refactoring.contentassist; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| import org.eclipse.swt.graphics.Image; |
| |
| import org.eclipse.core.runtime.Assert; |
| |
| import org.eclipse.jface.contentassist.IContentAssistSubjectControl; |
| import org.eclipse.jface.contentassist.ISubjectControlContentAssistProcessor; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.contentassist.ICompletionProposal; |
| import org.eclipse.jface.text.contentassist.IContentAssistProcessor; |
| import org.eclipse.jface.text.contentassist.IContextInformation; |
| import org.eclipse.jface.text.contentassist.IContextInformationValidator; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.JavaPluginImages; |
| import org.eclipse.jdt.internal.ui.JavaUIMessages; |
| import org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposal; |
| import org.eclipse.jdt.internal.ui.viewsupport.ImageDescriptorRegistry; |
| |
| public class VariableNamesProcessor implements IContentAssistProcessor, ISubjectControlContentAssistProcessor { |
| |
| private String fErrorMessage; |
| |
| private String[] fTempNameProposals; |
| |
| private ImageDescriptorRegistry fImageRegistry; |
| private ImageDescriptor fProposalImageDescriptor; |
| |
| public VariableNamesProcessor(String[] tempNameProposals) { |
| fTempNameProposals= tempNameProposals.clone(); |
| Arrays.sort(fTempNameProposals); |
| fImageRegistry= JavaPlugin.getImageDescriptorRegistry(); |
| fProposalImageDescriptor= JavaPluginImages.DESC_OBJS_LOCAL_VARIABLE; |
| |
| } |
| |
| public void setProposalImageDescriptor(ImageDescriptor proposalImageDescriptor) { |
| fProposalImageDescriptor= proposalImageDescriptor; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.IContentAssistProcessor#computeCompletionProposals(org.eclipse.jface.text.ITextViewer, int) |
| */ |
| public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) { |
| Assert.isTrue(false, "ITextViewer not supported"); //$NON-NLS-1$ |
| return null; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.IContentAssistProcessor#computeContextInformation(org.eclipse.jface.text.ITextViewer, int) |
| */ |
| public IContextInformation[] computeContextInformation(ITextViewer viewer, int documentOffset) { |
| Assert.isTrue(false, "ITextViewer not supported"); //$NON-NLS-1$ |
| return null; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.IContentAssistProcessor#getCompletionProposalAutoActivationCharacters() |
| */ |
| public char[] getCompletionProposalAutoActivationCharacters() { |
| return null; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.IContentAssistProcessor#getContextInformationAutoActivationCharacters() |
| */ |
| public char[] getContextInformationAutoActivationCharacters() { |
| return null; //no context |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.IContentAssistProcessor#getErrorMessage() |
| */ |
| public String getErrorMessage() { |
| return fErrorMessage; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.IContentAssistProcessor#getContextInformationValidator() |
| */ |
| public IContextInformationValidator getContextInformationValidator() { |
| return null; //no context |
| } |
| |
| /* |
| * @see org.eclipse.jface.contentassist.IContentAssistProcessorExtension#computeContextInformation(org.eclipse.jface.contentassist.IContentAssistSubject, int) |
| */ |
| public IContextInformation[] computeContextInformation(IContentAssistSubjectControl contentAssistSubject, int documentOffset) { |
| return null; //no context |
| } |
| |
| /* |
| * @see org.eclipse.jface.contentassist.IContentAssistProcessorExtension#computeCompletionProposals(org.eclipse.jface.contentassist.IContentAssistSubject, int) |
| */ |
| public ICompletionProposal[] computeCompletionProposals(IContentAssistSubjectControl contentAssistSubject, int documentOffset) { |
| if (fTempNameProposals.length == 0) |
| return null; |
| String input= contentAssistSubject.getDocument().get(); |
| |
| ArrayList<JavaCompletionProposal> proposals= new ArrayList<JavaCompletionProposal>(); |
| String prefix= input.substring(0, documentOffset); |
| Image image= fImageRegistry.get(fProposalImageDescriptor); |
| for (int i= 0; i < fTempNameProposals.length; i++) { |
| String tempName= fTempNameProposals[i]; |
| if (tempName.length() == 0 || ! tempName.startsWith(prefix)) |
| continue; |
| JavaCompletionProposal proposal= new JavaCompletionProposal(tempName, 0, input.length(), image, tempName, 0); |
| proposals.add(proposal); |
| } |
| fErrorMessage= proposals.size() > 0 ? null : JavaUIMessages.JavaEditor_codeassist_noCompletions; |
| return proposals.toArray(new ICompletionProposal[proposals.size()]); |
| } |
| |
| } |