| /******************************************************************************* |
| *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 - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.xsl.ui.internal.contentassist; |
| |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMAttr; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; |
| import org.eclipse.wst.xsl.ui.internal.contentassist.href.HrefContentAssistRequest; |
| import org.eclipse.wst.xsl.ui.provisional.contentassist.IContentAssistProposalRequest; |
| import org.eclipse.wst.xsl.ui.provisional.contentassist.NullContentAssistRequest; |
| import org.w3c.dom.NamedNodeMap; |
| |
| /** |
| * A Factory that determines which Content Assist Request class is needed and |
| * returns the appropriate class. |
| * |
| * @author David Carver |
| * @since 1.0 |
| */ |
| public class XSLContentAssistRequestFactory { |
| private static final String ATTR_SELECT = "select"; //$NON-NLS-1$ |
| private static final String ATTR_TEST = "test"; //$NON-NLS-1$ |
| private static final String ATTR_MATCH = "match"; //$NON-NLS-1$ |
| private static final String ATTR_EXCLUDE_RESULT_PREFIXES = "exclude-result-prefixes"; //$NON-NLS-1$ |
| private static final String ATTR_MODE = "mode"; //$NON-NLS-1$ |
| private static final String ELEM_TEMPLATE = "template"; //$NON-NLS-1$ |
| private static final String ELEM_APPLYTEMPLATES = "apply-templates"; //$NON-NLS-1$ |
| private static final String ELEM_APPLY_IMPORTS = "apply-imports"; //$NON-NLS-1$ |
| private static final String ATTR_HREF = "href"; //$NON-NLS-1$ |
| private static final String ELEM_CALLTEMPLATE = "call-template"; //$NON-NLS-1$ |
| private static final String ATTR_NAME = "name"; //$NON-NLS-1$ |
| private ITextViewer textViewer; |
| private int documentPosition; |
| private IDOMNode xmlNode; |
| private IStructuredDocumentRegion sdRegion; |
| private ITextRegion completionRegion; |
| private String matchString; |
| |
| |
| /** |
| * @param textViewer |
| * @param documentPosition |
| * @param xmlNode |
| * @param sdRegion |
| * @param completionRegion |
| * @param matchString |
| */ |
| public XSLContentAssistRequestFactory(ITextViewer textViewer, int documentPosition, IDOMNode xmlNode, |
| IStructuredDocumentRegion sdRegion, ITextRegion completionRegion, |
| String matchString) { |
| this.textViewer = textViewer; |
| this.documentPosition = documentPosition; |
| this.xmlNode = xmlNode; |
| this.sdRegion = sdRegion; |
| this.completionRegion = completionRegion; |
| this.matchString = matchString; |
| } |
| /** |
| * Get the appropriate content assist request class for the XSL request. |
| * @return |
| */ |
| public IContentAssistProposalRequest getContentAssistRequest() { |
| NamedNodeMap nodeMap = xmlNode.getAttributes(); |
| IDOMElement element = (IDOMElement) xmlNode; |
| IContentAssistProposalRequest proposal = commonAttributeProposals(nodeMap); |
| |
| if (proposal instanceof NullContentAssistRequest) { |
| if (isElementProposal(element)) { |
| proposal = getElementProposals(nodeMap, element); |
| } |
| } |
| |
| return proposal; |
| } |
| |
| private boolean isElementProposal(IDOMElement element) { |
| String localName = element.getLocalName(); |
| return localName.equals(ELEM_TEMPLATE) || |
| localName.equals(ELEM_APPLYTEMPLATES) || |
| localName.equals(ELEM_CALLTEMPLATE); |
| } |
| |
| |
| private IContentAssistProposalRequest getElementProposals(NamedNodeMap nodeMap, IDOMElement element) { |
| if (element.getLocalName().equals(ELEM_TEMPLATE)) { |
| return getTemplateProposals(nodeMap); |
| } |
| |
| if (element.getLocalName().equals(ELEM_APPLYTEMPLATES) |
| || element.getLocalName().equals(ELEM_APPLY_IMPORTS)) { |
| if (hasAttributeAtTextRegion(ATTR_MODE, nodeMap, completionRegion)) { |
| return new TemplateModeAttributeContentAssist(xmlNode, |
| sdRegion, completionRegion, documentPosition, 0, |
| matchString, textViewer); |
| } |
| |
| } |
| |
| if (element.getLocalName().equals(ELEM_CALLTEMPLATE)) { |
| if (hasAttributeAtTextRegion(ATTR_NAME, nodeMap, completionRegion)) { |
| return new CallTemplateContentAssistRequest(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, |
| textViewer); |
| } |
| } |
| |
| return new NullContentAssistRequest(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, textViewer); |
| |
| } |
| |
| private IContentAssistProposalRequest getTemplateProposals(NamedNodeMap nodeMap) { |
| if (hasAttributeAtTextRegion(ATTR_MODE, nodeMap, completionRegion)) { |
| return new TemplateModeAttributeContentAssist(xmlNode, |
| sdRegion, completionRegion, documentPosition, 0, |
| matchString, textViewer); |
| } |
| |
| if (hasAttributeAtTextRegion(ATTR_NAME, nodeMap, completionRegion)) { |
| return new TemplateNameAttributeContentAssist( xmlNode, |
| sdRegion, completionRegion, documentPosition, 0, |
| matchString, textViewer); |
| } |
| |
| return new NullContentAssistRequest(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, textViewer); |
| |
| } |
| |
| private IContentAssistProposalRequest commonAttributeProposals( |
| NamedNodeMap nodeMap) { |
| if (hasAttributeAtTextRegion(ATTR_SELECT, nodeMap, |
| completionRegion)) { |
| return new SelectAttributeContentAssist(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, |
| textViewer); |
| } |
| |
| // if (hasAttributeAtTextRegion(ATTR_MATCH, nodeMap, completionRegion)) { |
| // return new SelectAttributeContentAssist(xmlNode, sdRegion, |
| // completionRegion, documentPosition, 0, matchString, |
| // textViewer); |
| // } |
| |
| if (hasAttributeAtTextRegion(ATTR_TEST, nodeMap, completionRegion)) { |
| return new TestAttributeContentAssist(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, |
| textViewer); |
| } |
| |
| if (hasAttributeAtTextRegion(ATTR_EXCLUDE_RESULT_PREFIXES, |
| nodeMap, completionRegion)) { |
| return new ExcludeResultPrefixesContentAssist(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, |
| textViewer); |
| } |
| |
| if (hasAttributeAtTextRegion(ATTR_HREF, nodeMap, completionRegion)) { |
| return new HrefContentAssistRequest(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, |
| textViewer); |
| } |
| |
| |
| return new NullContentAssistRequest(xmlNode, sdRegion, |
| completionRegion, documentPosition, 0, matchString, textViewer); |
| } |
| |
| protected boolean hasAttributeAtTextRegion(String attrName, |
| NamedNodeMap nodeMap, ITextRegion aRegion) { |
| IDOMAttr attrNode = (IDOMAttr) nodeMap.getNamedItem(attrName); |
| return attrNode != null && attrNode.getValueRegion() != null |
| && attrNode.getValueRegion().getStart() == aRegion.getStart(); |
| } |
| } |