| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.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.jface.util.Assert; |
| |
| import org.eclipse.jdt.internal.corext.refactoring.code.PromoteTempToFieldRefactoring; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.JavaUIMessages; |
| import org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposal; |
| import org.eclipse.jdt.internal.ui.viewsupport.ImageDescriptorRegistry; |
| import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider; |
| |
| public class FieldNameProcessor implements IContentAssistProcessor, ISubjectControlContentAssistProcessor { |
| |
| private String[] fFieldNameProposals; |
| private String fErrorMessage; |
| private ImageDescriptorRegistry fImageRegistry= JavaPlugin.getImageDescriptorRegistry(); |
| private PromoteTempToFieldRefactoring fRefactoring; |
| |
| public FieldNameProcessor(PromoteTempToFieldRefactoring refactoring) { |
| fRefactoring= refactoring; |
| fFieldNameProposals= refactoring.guessFieldNames(); |
| Arrays.sort(fFieldNameProposals); |
| } |
| |
| /* |
| * @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 (fFieldNameProposals.length == 0) |
| return null; |
| String input= contentAssistSubject.getDocument().get(); |
| |
| ArrayList proposals= new ArrayList(); |
| String prefix= input.substring(0, documentOffset); |
| ImageDescriptor imageDescriptor= JavaElementImageProvider.getFieldImageDescriptor(false, fRefactoring.getVisibility()); |
| Image image= fImageRegistry.get(imageDescriptor); |
| for (int i= 0; i < fFieldNameProposals.length; i++) { |
| String tempName= fFieldNameProposals[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 (ICompletionProposal[]) proposals.toArray(new ICompletionProposal[proposals.size()]); |
| } |
| |
| } |