/*=============================================================================#
# Copyright (c) 2009-2016 Stephan Wahlbrink (WalWare.de) 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:
# Stephan Wahlbrink - initial API and implementation
#=============================================================================*/
package de.walware.docmlet.tex.core.refactoring;
import org.eclipse.jface.text.AbstractDocument;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.BadPartitioningException;
import org.eclipse.jface.text.ITypedRegion;
import de.walware.ecommons.ltk.core.ElementSet;
import de.walware.ecommons.ltk.core.model.IModelElement;
import de.walware.ecommons.ltk.core.model.ISourceElement;
import de.walware.ecommons.ltk.core.model.ISourceUnit;
import de.walware.ecommons.ltk.core.refactoring.RefactoringAdapter;
import de.walware.ecommons.ltk.core.refactoring.RefactoringDestination;
import de.walware.ecommons.ltk.core.refactoring.RefactoringDestination.Position;
import de.walware.ecommons.text.BasicHeuristicTokenScanner;
import de.walware.docmlet.tex.core.TexCore;
import de.walware.docmlet.tex.core.ast.Environment;
import de.walware.docmlet.tex.core.ast.TexAst;
import de.walware.docmlet.tex.core.ast.TexAstNode;
import de.walware.docmlet.tex.core.model.ITexSourceElement;
import de.walware.docmlet.tex.core.model.TexModel;
import de.walware.docmlet.tex.core.source.ITexDocumentConstants;
import de.walware.docmlet.tex.core.source.LtxHeuristicTokenScanner;
public class LtxRefactoringAdapter extends RefactoringAdapter {
public LtxRefactoringAdapter() {
super(TexModel.LTX_TYPE_ID);
}
@Override
public String getPluginIdentifier() {
return TexCore.PLUGIN_ID;
}
@Override
public LtxHeuristicTokenScanner getScanner(final ISourceUnit su) {
return LtxHeuristicTokenScanner.create(su.getDocumentContentInfo());
}
@Override
public boolean canInsert(final ElementSet elements, final ISourceElement to,
final RefactoringDestination.Position pos) {
if (super.canInsert(elements, to, pos)) {
if ((to.getElementType() & IModelElement.MASK_C2) == ITexSourceElement.C2_PREAMBLE) {
for (final IModelElement element : elements.getModelElements()) {
if ((element.getElementType() & IModelElement.MASK_C2) == ITexSourceElement.C2_SECTIONING) {
return false;
}
}
}
if ((to.getElementType() & IModelElement.MASK_C1) == IModelElement.C1_EMBEDDED
&& pos == RefactoringDestination.Position.INTO ) {
return false;
}
return true;
}
return false;
}
@Override
public boolean isCommentContent(final ITypedRegion partition) {
return (partition != null
&& (partition.getType() == ITexDocumentConstants.LTX_COMMENT_CONTENT_TYPE
|| partition.getType() == ITexDocumentConstants.LTX_MATHCOMMENT_CONTENT_TYPE ));
}
@Override
protected int getInsertionOffset(final AbstractDocument document,
final ISourceElement element, final Position pos,
final BasicHeuristicTokenScanner scanner)
throws BadLocationException, BadPartitioningException {
if ((element.getElementType() & IModelElement.MASK_C2) == ITexSourceElement.C2_SOURCE_FILE
&& pos == Position.INTO) {
final TexAstNode astNode = (TexAstNode) element.getAdapter(TexAstNode.class);
if (astNode != null) {
final Environment environment = TexAst.getDocumentNode(astNode);
if (environment.getEndNode() != null) {
return environment.getEndNode().getOffset();
}
}
}
return super.getInsertionOffset(document, element, pos, scanner);
}
}