| /******************************************************************************* |
| * Copyright (c) 2001, 2005 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 |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| |
| |
| package org.eclipse.wst.dtd.ui.internal.dnd; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| import org.eclipse.swt.dnd.DND; |
| import org.eclipse.wst.common.ui.internal.dnd.DefaultDragAndDropCommand; |
| import org.eclipse.wst.dtd.core.internal.CMBasicNode; |
| import org.eclipse.wst.dtd.core.internal.CMGroupNode; |
| import org.eclipse.wst.dtd.core.internal.CMNode; |
| import org.eclipse.wst.dtd.core.internal.DTDFile; |
| import org.eclipse.wst.dtd.core.internal.DTDNode; |
| import org.eclipse.wst.dtd.core.internal.Element; |
| import org.eclipse.wst.dtd.ui.internal.DTDUIMessages; |
| |
| |
| public class DragContentModelCommand extends DefaultDragAndDropCommand { |
| |
| public DragContentModelCommand(Object target, float location, int operations, int operation, Collection sources) { |
| super(target, location, operations, operation, sources); |
| } |
| |
| public boolean canExecute() { |
| if (!(target instanceof CMNode)) { |
| return false; |
| } |
| |
| Iterator iter = sources.iterator(); |
| while (iter.hasNext()) { |
| Object source = iter.next(); |
| if (!(source instanceof CMNode)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public void execute() { |
| DTDNode referenceNode = (DTDNode) target; |
| |
| if (referenceNode instanceof CMNode) { |
| DTDFile dtdFile = referenceNode.getDTDFile(); |
| |
| DTDNode parent = (DTDNode) referenceNode.getParentNode(); |
| dtdFile.getDTDModel().beginRecording(this, DTDUIMessages._UI_MOVE_CONTENT); //$NON-NLS-1$ |
| boolean parentIsElement = false; |
| Element element = null; |
| CMGroupNode group = null; |
| if (parent instanceof Element) { |
| parentIsElement = true; |
| element = (Element) parent; |
| } |
| else { |
| group = (CMGroupNode) parent; |
| } |
| |
| if (element == null && group == null) { |
| // no parent to add to |
| return; |
| } |
| |
| Iterator iter = sources.iterator(); |
| while (iter.hasNext()) { |
| DTDNode node = (DTDNode) iter.next(); |
| if (node instanceof CMNode) { |
| if (parentIsElement) { |
| if (element.getContentModel() == node) { |
| continue; |
| } |
| element.replaceContentModel(this, (CMNode) node); |
| } |
| else { |
| if (referenceNode == node || (isAfter() && referenceNode.getNextSibling() == node) || (!isAfter() && node.getNextSibling() == referenceNode)) { |
| continue; |
| } |
| |
| group.insertIntoModel(this, (CMNode) referenceNode, (CMNode) node, isAfter()); |
| |
| } |
| DTDNode nodeParent = (DTDNode) node.getParentNode(); |
| nodeParent.delete(this, node); |
| } |
| } |
| dtdFile.getDTDModel().endRecording(this); |
| } |
| } |
| |
| public int getFeedback() { |
| DTDNode referenceNode = (DTDNode) target; |
| if (referenceNode instanceof CMNode) { |
| CMNode cmNode = (CMNode) referenceNode; |
| if (cmNode.isRootElementContent() && cmNode instanceof CMBasicNode) { |
| return DND.FEEDBACK_SELECT; |
| } |
| } |
| |
| return super.getFeedback(); |
| } |
| } |