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/*******************************************************************************
* Copyright (c) 2009 itemis AG (http://www.itemis.eu) 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
*******************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.xtext.glue.edit.part;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.common.ui.services.parser.IParser;
import org.eclipse.gmf.runtime.common.ui.services.parser.IParserEditStatus;
import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
import org.eclipse.xtext.parser.IParseResult;
import org.eclipse.xtext.ui.editor.contentassist.XtextContentAssistProcessor;
import com.google.inject.Inject;
import com.google.inject.Injector;
//import org.eclipse.xtext.parser.antlr.IAntlrParser;
//import org.eclipse.xtext.parsetree.CompositeNode;
//import org.eclipse.xtext.parsetree.NodeAdapter;
//import org.eclipse.xtext.parsetree.NodeUtil;
//import org.eclipse.xtext.parsetree.SyntaxError;
/**
* Wraps a (partial) Xtext parser in a GMF {@link IParser}.
*
* @author koehnlein
*/
public class AntlrParserWrapper implements IParser {
@Inject
private XtextContentAssistProcessor xtextContentAssistProcessor;
@Inject
private org.eclipse.xtext.parser.IParser xtextParser;
private final String parserRuleName;
private final IParser originalParser;
/**
* This element comes from the XText/GMF integration example, and was not originally documented.
* @param parserRuleName
* @param originalParser
* @param xtextInjector
*/
public AntlrParserWrapper(String parserRuleName, IParser originalParser, Injector xtextInjector) {
this.parserRuleName = parserRuleName;
this.originalParser = originalParser;
xtextInjector.injectMembers(this);
}
public IContentAssistProcessor getCompletionProcessor(IAdaptable element) {
// TODO does not work. need to fake an XtextDocument
return xtextContentAssistProcessor;
}
public String getEditString(IAdaptable element, int flags) {
// EObject semanticElement = (EObject) element.getAdapter(EObject.class);
// if (semanticElement != null) {
// NodeAdapter nodeAdapter = NodeUtil.getNodeAdapter(semanticElement);
// if (nodeAdapter != null) {
// return nodeAdapter.getParserNode().serialize().trim();
// }
// }
return "invalid";
}
public ICommand getParseCommand(IAdaptable element, final String newString, int flags) {
// EObject semanticElement = (EObject) element.getAdapter(EObject.class);
// if (semanticElement != null) {
// IParseResult parseResult = xtextParser.parse(parserRuleName, new StringInputStream(newString));
// if (isValidParseResult(parseResult, semanticElement)) {
// NodeAdapter nodeAdapter = NodeUtil.getNodeAdapter(semanticElement);
// if (nodeAdapter != null) {
// final ICompositeNode parserNode = nodeAdapter.getParserNode();
// final XtextResource semanticResource = (XtextResource) semanticElement.eResource();
// ICommand reparseCommand = UpdateXtextResourceTextCommand.createUpdateCommand(semanticResource,
// parserNode.getOffset(), parserNode.getLength(), newString);
// return reparseCommand;
// }
// }
// }
// return UnexecutableCommand.INSTANCE;
return null ;
}
public String getPrintString(IAdaptable element, int flags) {
return originalParser.getPrintString(element, flags);
}
public boolean isAffectingEvent(Object event, int flags) {
return false;
}
public IParserEditStatus isValidEditString(IAdaptable element, String editString) {
// try {
// IParseResult parseResult = xtextParser.parse(parserRuleName, new StringInputStream(editString));
// if (isValidParseResult(parseResult, (EObject) element.getAdapter(EObject.class))) {
// return new ParserEditStatus(IStatus.OK, Activator.PLUGIN_ID, IParserEditStatus.EDITABLE, "OK", null);
// } else {
// SyntaxError syntaxError = parseResult.getParseErrors().get(0);
// return new ParserEditStatus(IStatus.INFO, Activator.PLUGIN_ID, IParserEditStatus.UNEDITABLE,
// syntaxError.getMessage(), null);
// }
// } catch (Exception exc) {
// return new ParserEditStatus(IStatus.INFO, Activator.PLUGIN_ID, IParserEditStatus.UNEDITABLE, exc
// .getMessage(), exc);
// }
return null ;
}
private boolean isValidParseResult(IParseResult parseResult, EObject semanticElement) {
// EObject rootASTElement = parseResult.getRootASTElement();
// return parseResult.getParseErrors().isEmpty() && rootASTElement != null && semanticElement != null
// && semanticElement.eClass() == rootASTElement.eClass();
return false ;
}
}
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