| /******************************************************************************* |
| * Copyright (c) 2010, 2011 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.wst.xml.ui.internal.contentassist; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.text.contentassist.IContextInformationValidator; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; |
| import org.eclipse.wst.sse.ui.contentassist.CompletionProposalInvocationContext; |
| import org.eclipse.wst.xml.core.internal.contentmodel.CMNode; |
| |
| /** |
| * <p>{@link AbstractXMLModelQueryCompletionProposalComputer} used to |
| * generate XML tag content assist proposals</p> |
| * |
| * <p><b>NOTE:</b> Currently this computer does not filter out any of the |
| * model query results so it will return all proposals from the model query |
| * for the current content type. In the future this may need to change.</p> |
| */ |
| public class XMLTagsCompletionProposalComputer extends |
| AbstractXMLModelQueryCompletionProposalComputer { |
| |
| /** the generated used to generate the proposals */ |
| protected XMLContentModelGenerator fGenerator; |
| |
| /** the context information validator for this computer */ |
| private IContextInformationValidator fContextInformationValidator; |
| |
| /** |
| * <p>Default constructor</p> |
| */ |
| public XMLTagsCompletionProposalComputer() { |
| this.fContextInformationValidator = null; |
| } |
| |
| /** |
| * @see org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLModelQueryCompletionProposalComputer#getContentGenerator() |
| */ |
| protected XMLContentModelGenerator getContentGenerator() { |
| if (fGenerator == null) { |
| fGenerator = new XMLContentModelGenerator(); |
| } |
| return fGenerator; |
| } |
| |
| /** |
| * @see org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer#computeContextInformation(org.eclipse.wst.sse.ui.contentassist.CompletionProposalInvocationContext, org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public List computeContextInformation( |
| CompletionProposalInvocationContext context, |
| IProgressMonitor monitor) { |
| |
| AttributeContextInformationProvider attributeInfoProvider = |
| new AttributeContextInformationProvider((IStructuredDocument)context.getDocument(), |
| (AttributeContextInformationPresenter) getContextInformationValidator()); |
| return Arrays.asList(attributeInfoProvider.getAttributeInformation(context.getInvocationOffset())); |
| } |
| |
| /** |
| * <p>Filters out any model query actions that are not specific to XML</p> |
| * <p><b>NOTE:</b> Currently nothing is filtered so this computer returns all |
| * results from the model query for the current content type</p> |
| * |
| * @see org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLModelQueryCompletionProposalComputer#validModelQueryNode(org.eclipse.wst.xml.core.internal.contentmodel.CMNode) |
| */ |
| protected boolean validModelQueryNode(CMNode node) { |
| return true; |
| } |
| |
| /** |
| * Returns a validator used to determine when displayed context |
| * information should be dismissed. May only return <code>null</code> if |
| * the processor is incapable of computing context information. |
| * |
| * a context information validator, or <code>null</code> if the |
| * processor is incapable of computing context information |
| */ |
| private IContextInformationValidator getContextInformationValidator() { |
| if (fContextInformationValidator == null) { |
| fContextInformationValidator = new AttributeContextInformationPresenter(); |
| } |
| return fContextInformationValidator; |
| } |
| } |