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/*******************************************************************************
* Copyright (c) 2001, 2004 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.wst.common.ui.internal.dnd.DefaultDragAndDropCommand;
import org.eclipse.wst.dtd.core.internal.DTDFile;
import org.eclipse.wst.dtd.core.internal.DTDNode;
import org.eclipse.wst.dtd.core.internal.TopLevelNode;
import org.eclipse.wst.dtd.ui.internal.DTDUIMessages;
public class DragTopLevelNodesCommand extends DefaultDragAndDropCommand {
static private final String moveNode = DTDUIMessages._UI_MOVE_NODE; //$NON-NLS-1$
static private final String moveNodes = DTDUIMessages._UI_MOVE_NODES; //$NON-NLS-1$
public DragTopLevelNodesCommand(Object target, float location, int operations, int operation, Collection sources) {
super(target, location, operations, operation, sources);
}
public boolean canExecute() {
if (!(target instanceof TopLevelNode)) {
return false;
}
Iterator iter = sources.iterator();
while (iter.hasNext()) {
Object source = iter.next();
if (!(source instanceof TopLevelNode)) {
return false;
}
}
return true;
}
public void execute() {
DTDNode referenceNode = (DTDNode) target;
DTDFile dtdFile = referenceNode.getDTDFile();
dtdFile.getDTDModel().beginRecording(this, sources.size() > 1 ? moveNodes : moveNode);
Iterator iter = sources.iterator();
while (iter.hasNext()) {
DTDNode node = (DTDNode) iter.next();
if (node instanceof TopLevelNode) {
dtdFile.moveNode(this, referenceNode, node, isAfter());
}
}
dtdFile.getDTDModel().endRecording(this);
}
}
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