| /******************************************************************************* |
| *Copyright (c) 2008 Standards for Technology in Automotive Retail 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: |
| * David Carver (STAR) - bug 230136 - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xsl.ui.internal.contentassist; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.contentassist.ICompletionProposal; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion; |
| import org.eclipse.wst.sse.ui.internal.contentassist.CustomCompletionProposal; |
| import org.eclipse.wst.xml.core.internal.contentmodel.util.NamespaceInfo; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMAttr; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement; |
| import org.eclipse.wst.xsl.core.XSLCore; |
| import org.eclipse.wst.xsl.ui.internal.Messages; |
| import org.eclipse.wst.xsl.ui.internal.util.XSLPluginImageHelper; |
| import org.eclipse.wst.xsl.ui.internal.util.XSLPluginImages; |
| import org.eclipse.wst.xsl.ui.provisional.contentassist.AbstractXSLContentAssistRequest; |
| import org.w3c.dom.Node; |
| |
| /** |
| * Provides content assistance for xsl elements that have the |
| * exclude-result-prefixes attribute. This will provide a list |
| * of all known result prefixes that aren't currently in the attribute |
| * list. This list is a space separated list. The XSL prefix is |
| * excluded. |
| * |
| * @author dcarver |
| * @since 1.0 |
| * |
| */ |
| public class ExcludeResultPrefixesContentAssist extends AbstractXSLContentAssistRequest { |
| private static final String EXCLUDE_RESULT_PREFIXES = "exclude-result-prefixes"; //$NON-NLS-1$ |
| private static final String DEFAULT = "#all"; //$NON-NLS-1$ |
| private static final String ADDITIONAL_INFO = Messages.ExcludeResultPrefixesContentAssist; |
| protected String[] tokens = null; |
| |
| /** |
| * @param node |
| * @param documentRegion |
| * @param completionRegion |
| * @param begin |
| * @param length |
| * @param filter |
| * @param textViewer |
| */ |
| public ExcludeResultPrefixesContentAssist(Node node, |
| IStructuredDocumentRegion documentRegion, |
| ITextRegion completionRegion, int begin, int length, String filter, |
| ITextViewer textViewer) { |
| super(node, documentRegion, completionRegion, begin, length, filter, textViewer); |
| } |
| |
| /** |
| * (non-Javadoc) |
| * @see org.eclipse.wst.xml.ui.internal.contentassist.ContentAssistRequest#getCompletionProposals() |
| */ |
| @Override |
| public ArrayList<ICompletionProposal> getCompletionProposals() { |
| proposals.clear(); |
| |
| IDOMAttr attrNode = (IDOMAttr)((IDOMElement)getNode()).getAttributeNode(EXCLUDE_RESULT_PREFIXES); |
| String excludeResultPrefixes = attrNode.getValue(); |
| int offset = getCursorPosition(); |
| |
| if (excludeResultPrefixes == null || excludeResultPrefixes.equals(DEFAULT)) { |
| return getAllCompletionProposals(); |
| } |
| |
| tokens = excludeResultPrefixes.split("\\s"); //$NON-NLS-1$ |
| if (tokens[0].equals("")) { //$NON-NLS-1$ |
| CustomCompletionProposal proposal = new CustomCompletionProposal( |
| DEFAULT, offset, 0, DEFAULT.length(), |
| XSLPluginImageHelper.getInstance().getImage(XSLPluginImages.IMG_PREFIX), |
| DEFAULT, null, null, 0); |
| addProposal(proposal); |
| } |
| Collection<NamespaceInfo> namespaces = this.getNamespaces((IDOMElement)node); |
| for (NamespaceInfo namespace : namespaces) { |
| |
| if (includePrefix(namespace)) { |
| CustomCompletionProposal proposal = new CustomCompletionProposal( |
| namespace.prefix, offset, 0, namespace.prefix.length(), |
| XSLPluginImageHelper.getInstance().getImage(XSLPluginImages.IMG_PREFIX), |
| namespace.prefix, null, namespace.uri, 0); |
| addProposal(proposal); |
| } |
| } |
| |
| return getAllCompletionProposals(); |
| } |
| |
| protected boolean includePrefix(NamespaceInfo namespace) { |
| return !prefixExists(namespace.prefix) && !namespace.prefix.equals("") && !namespace.uri.equals(XSLCore.XSL_NAMESPACE_URI); //$NON-NLS-1$ |
| } |
| |
| |
| protected boolean prefixExists(String prefix) { |
| if (tokens == null || tokens.length == 0) { |
| return false; |
| } |
| for (int cnt = 0; cnt < tokens.length; cnt++) { |
| if (prefix.equals(tokens[cnt])) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } |