| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.text.javadoc; |
| |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionRegistry; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.Platform; |
| |
| import org.eclipse.swt.graphics.Point; |
| |
| |
| import org.eclipse.jface.text.contentassist.IContextInformation; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| |
| import org.eclipse.jdt.ui.JavaUI; |
| import org.eclipse.jdt.ui.text.java.IJavaCompletionProposalComputer; |
| import org.eclipse.jdt.ui.text.java.IJavaCompletionProposal; |
| import org.eclipse.jdt.ui.text.java.IJavadocCompletionProcessor; |
| import org.eclipse.jdt.ui.text.java.JavaContentAssistInvocationContext; |
| import org.eclipse.jdt.ui.text.java.ContentAssistInvocationContext; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| /** |
| * Java doc completion processor using contributed IJavaDocCompletionProcessor's |
| * to evaluate proposals. |
| * |
| * @since 3.2 |
| */ |
| public class LegacyJavadocCompletionProposalComputer implements IJavaCompletionProposalComputer { |
| |
| private static final String PROCESSOR_CONTRIBUTION_ID= "javadocCompletionProcessor"; //$NON-NLS-1$ |
| |
| private IJavadocCompletionProcessor[] fSubProcessors; |
| |
| private String fErrorMessage; |
| |
| public LegacyJavadocCompletionProposalComputer() { |
| fSubProcessors= null; |
| } |
| |
| |
| private IJavadocCompletionProcessor[] getContributedProcessors() { |
| if (fSubProcessors == null) { |
| try { |
| IExtensionRegistry registry= Platform.getExtensionRegistry(); |
| IConfigurationElement[] elements= registry.getConfigurationElementsFor(JavaUI.ID_PLUGIN, PROCESSOR_CONTRIBUTION_ID); |
| IJavadocCompletionProcessor[] result= new IJavadocCompletionProcessor[elements.length]; |
| for (int i= 0; i < elements.length; i++) { |
| result[i]= (IJavadocCompletionProcessor) elements[i].createExecutableExtension("class"); //$NON-NLS-1$ |
| } |
| fSubProcessors= result; |
| } catch (CoreException e) { |
| JavaPlugin.log(e); |
| fSubProcessors= new IJavadocCompletionProcessor[0]; |
| } |
| } |
| return fSubProcessors; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalComputer#computeContextInformation(org.eclipse.jface.text.contentassist.TextContentAssistInvocationContext, org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public List computeContextInformation(ContentAssistInvocationContext context, IProgressMonitor monitor) { |
| if (context instanceof JavaContentAssistInvocationContext) { |
| JavaContentAssistInvocationContext javaContext= (JavaContentAssistInvocationContext) context; |
| |
| ICompilationUnit cu= javaContext.getCompilationUnit(); |
| int offset= javaContext.getInvocationOffset(); |
| |
| ArrayList result= new ArrayList(); |
| |
| IJavadocCompletionProcessor[] processors= getContributedProcessors(); |
| String error= null; |
| for (int i= 0; i < processors.length; i++) { |
| IJavadocCompletionProcessor curr= processors[i]; |
| IContextInformation[] contextInfos= curr.computeContextInformation(cu, offset); |
| if (contextInfos != null) { |
| for (int k= 0; k < contextInfos.length; k++) { |
| result.add(contextInfos[k]); |
| } |
| } else if (error == null) { |
| error= curr.getErrorMessage(); |
| } |
| } |
| fErrorMessage= error; |
| return result; |
| } |
| return Collections.EMPTY_LIST; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalComputer#computeCompletionProposals(org.eclipse.jface.text.contentassist.TextContentAssistInvocationContext, org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public List computeCompletionProposals(ContentAssistInvocationContext context, IProgressMonitor monitor) { |
| if (context instanceof JavadocContentAssistInvocationContext) { |
| JavadocContentAssistInvocationContext javaContext= (JavadocContentAssistInvocationContext) context; |
| |
| ICompilationUnit cu= javaContext.getCompilationUnit(); |
| int offset= javaContext.getInvocationOffset(); |
| int length= javaContext.getSelectionLength(); |
| Point selection= javaContext.getViewer().getSelectedRange(); |
| if (selection.y > 0) { |
| offset= selection.x; |
| length= selection.y; |
| } |
| |
| ArrayList result= new ArrayList(); |
| |
| IJavadocCompletionProcessor[] processors= getContributedProcessors(); |
| for (int i= 0; i < processors.length; i++) { |
| IJavadocCompletionProcessor curr= processors[i]; |
| IJavaCompletionProposal[] proposals= curr.computeCompletionProposals(cu, offset, length, javaContext.getFlags()); |
| if (proposals != null) { |
| for (int k= 0; k < proposals.length; k++) { |
| result.add(proposals[k]); |
| } |
| } |
| } |
| return result; |
| } |
| return Collections.EMPTY_LIST; |
| } |
| |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalComputer#getErrorMessage() |
| */ |
| public String getErrorMessage() { |
| return fErrorMessage; |
| } |
| |
| |
| /* |
| * @see org.eclipse.jdt.ui.text.java.IJavaCompletionProposalComputer#sessionStarted() |
| */ |
| public void sessionStarted() { |
| } |
| |
| |
| /* |
| * @see org.eclipse.jdt.ui.text.java.IJavaCompletionProposalComputer#sessionEnded() |
| */ |
| public void sessionEnded() { |
| fErrorMessage= null; |
| } |
| } |