| /* |
| * Copyright (c) 2012, the Dart project authors. |
| * |
| * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.dart.tools.ui.internal.refactoring.contentassist; |
| |
| import com.google.dart.tools.ui.DartPluginImages; |
| import com.google.dart.tools.ui.DartToolsPlugin; |
| import com.google.dart.tools.ui.DartUIMessages; |
| import com.google.dart.tools.ui.internal.text.completion.DartCompletionProposal; |
| import com.google.dart.tools.ui.internal.viewsupport.ImageDescriptorRegistry; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.jface.contentassist.IContentAssistSubjectControl; |
| 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.swt.graphics.Image; |
| |
| import java.util.ArrayList; |
| |
| @SuppressWarnings("deprecation") |
| public class VariableNamesProcessor implements IContentAssistProcessor, |
| org.eclipse.jface.contentassist.ISubjectControlContentAssistProcessor { |
| |
| private String fErrorMessage; |
| |
| private String[] fTempNameProposals; |
| |
| private ImageDescriptorRegistry fImageRegistry; |
| private ImageDescriptor fProposalImageDescriptor; |
| |
| public VariableNamesProcessor(String[] tempNameProposals) { |
| fTempNameProposals = tempNameProposals.clone(); |
| fImageRegistry = DartToolsPlugin.getImageDescriptorRegistry(); |
| fProposalImageDescriptor = DartPluginImages.DESC_OBJS_LOCAL_VARIABLE; |
| |
| } |
| |
| @Override |
| public ICompletionProposal[] computeCompletionProposals( |
| IContentAssistSubjectControl contentAssistSubject, int documentOffset) { |
| if (fTempNameProposals.length == 0) { |
| return null; |
| } |
| String input = contentAssistSubject.getDocument().get(); |
| |
| ArrayList<DartCompletionProposal> proposals = new ArrayList<DartCompletionProposal>(); |
| 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; |
| } |
| DartCompletionProposal proposal = new DartCompletionProposal( |
| tempName, |
| 0, |
| input.length(), |
| 0, |
| image, |
| tempName, |
| 0, |
| null, |
| null); |
| proposals.add(proposal); |
| } |
| fErrorMessage = proposals.size() > 0 ? null |
| : DartUIMessages.JavaEditor_codeassist_noCompletions; |
| return proposals.toArray(new ICompletionProposal[proposals.size()]); |
| } |
| |
| @Override |
| public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) { |
| Assert.isTrue(false, "ITextViewer not supported"); //$NON-NLS-1$ |
| return null; |
| } |
| |
| @Override |
| public IContextInformation[] computeContextInformation( |
| IContentAssistSubjectControl contentAssistSubject, int documentOffset) { |
| return null; //no context |
| } |
| |
| @Override |
| public IContextInformation[] computeContextInformation(ITextViewer viewer, int documentOffset) { |
| Assert.isTrue(false, "ITextViewer not supported"); //$NON-NLS-1$ |
| return null; |
| } |
| |
| @Override |
| public char[] getCompletionProposalAutoActivationCharacters() { |
| return null; |
| } |
| |
| @Override |
| public char[] getContextInformationAutoActivationCharacters() { |
| return null; //no context |
| } |
| |
| @Override |
| public IContextInformationValidator getContextInformationValidator() { |
| return null; //no context |
| } |
| |
| @Override |
| public String getErrorMessage() { |
| return fErrorMessage; |
| } |
| |
| public void setProposalImageDescriptor(ImageDescriptor proposalImageDescriptor) { |
| fProposalImageDescriptor = proposalImageDescriptor; |
| } |
| |
| } |