| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.examples.javaeditor.java; |
| |
| |
| import java.text.MessageFormat; |
| |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.TextPresentation; |
| import org.eclipse.jface.text.contentassist.*; |
| |
| /** |
| * Example Java completion processor. |
| */ |
| public class JavaCompletionProcessor implements IContentAssistProcessor { |
| |
| /** |
| * Simple content assist tip closer. The tip is valid in a range |
| * of 5 characters around its popup location. |
| */ |
| protected static class Validator implements IContextInformationValidator, IContextInformationPresenter { |
| |
| protected int fInstallOffset; |
| |
| /* |
| * @see IContextInformationValidator#isContextInformationValid(int) |
| */ |
| public boolean isContextInformationValid(int offset) { |
| return Math.abs(fInstallOffset - offset) < 5; |
| } |
| |
| /* |
| * @see IContextInformationValidator#install(IContextInformation, ITextViewer, int) |
| */ |
| public void install(IContextInformation info, ITextViewer viewer, int offset) { |
| fInstallOffset= offset; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.IContextInformationPresenter#updatePresentation(int, TextPresentation) |
| */ |
| public boolean updatePresentation(int documentPosition, TextPresentation presentation) { |
| return false; |
| } |
| } |
| |
| protected final static String[] fgProposals= |
| { "abstract", "boolean", "break", "byte", "case", "catch", "char", "class", "continue", "default", "do", "double", "else", "extends", "false", "final", "finally", "float", "for", "if", "implements", "import", "instanceof", "int", "interface", "long", "native", "new", "null", "package", "private", "protected", "public", "return", "short", "static", "super", "switch", "synchronized", "this", "throw", "throws", "transient", "true", "try", "void", "volatile", "while" }; //$NON-NLS-48$ //$NON-NLS-47$ //$NON-NLS-46$ //$NON-NLS-45$ //$NON-NLS-44$ //$NON-NLS-43$ //$NON-NLS-42$ //$NON-NLS-41$ //$NON-NLS-40$ //$NON-NLS-39$ //$NON-NLS-38$ //$NON-NLS-37$ //$NON-NLS-36$ //$NON-NLS-35$ //$NON-NLS-34$ //$NON-NLS-33$ //$NON-NLS-32$ //$NON-NLS-31$ //$NON-NLS-30$ //$NON-NLS-29$ //$NON-NLS-28$ //$NON-NLS-27$ //$NON-NLS-26$ //$NON-NLS-25$ //$NON-NLS-24$ //$NON-NLS-23$ //$NON-NLS-22$ //$NON-NLS-21$ //$NON-NLS-20$ //$NON-NLS-19$ //$NON-NLS-18$ //$NON-NLS-17$ //$NON-NLS-16$ //$NON-NLS-15$ //$NON-NLS-14$ //$NON-NLS-13$ //$NON-NLS-12$ //$NON-NLS-11$ //$NON-NLS-10$ //$NON-NLS-9$ //$NON-NLS-8$ //$NON-NLS-7$ //$NON-NLS-6$ //$NON-NLS-5$ //$NON-NLS-4$ //$NON-NLS-3$ //$NON-NLS-2$ //$NON-NLS-1$ |
| |
| protected IContextInformationValidator fValidator= new Validator(); |
| |
| /* (non-Javadoc) |
| * Method declared on IContentAssistProcessor |
| */ |
| public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) { |
| ICompletionProposal[] result= new ICompletionProposal[fgProposals.length]; |
| for (int i= 0; i < fgProposals.length; i++) { |
| IContextInformation info= new ContextInformation(fgProposals[i], MessageFormat.format(JavaEditorMessages.getString("CompletionProcessor.Proposal.ContextInfo.pattern"), new Object[] { fgProposals[i] })); //$NON-NLS-1$ |
| result[i]= new CompletionProposal(fgProposals[i], documentOffset, 0, fgProposals[i].length(), null, fgProposals[i], info, MessageFormat.format(JavaEditorMessages.getString("CompletionProcessor.Proposal.hoverinfo.pattern"), new Object[] { fgProposals[i]})); //$NON-NLS-1$ |
| } |
| return result; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IContentAssistProcessor |
| */ |
| public IContextInformation[] computeContextInformation(ITextViewer viewer, int documentOffset) { |
| IContextInformation[] result= new IContextInformation[5]; |
| for (int i= 0; i < result.length; i++) |
| result[i]= new ContextInformation( |
| MessageFormat.format(JavaEditorMessages.getString("CompletionProcessor.ContextInfo.display.pattern"), new Object[] { new Integer(i), new Integer(documentOffset) }), //$NON-NLS-1$ |
| MessageFormat.format(JavaEditorMessages.getString("CompletionProcessor.ContextInfo.value.pattern"), new Object[] { new Integer(i), new Integer(documentOffset - 5), new Integer(documentOffset + 5)})); //$NON-NLS-1$ |
| return result; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IContentAssistProcessor |
| */ |
| public char[] getCompletionProposalAutoActivationCharacters() { |
| return new char[] { '.', '(' }; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IContentAssistProcessor |
| */ |
| public char[] getContextInformationAutoActivationCharacters() { |
| return new char[] { '#' }; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IContentAssistProcessor |
| */ |
| public IContextInformationValidator getContextInformationValidator() { |
| return fValidator; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IContentAssistProcessor |
| */ |
| public String getErrorMessage() { |
| return null; |
| } |
| } |