/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.seam.pages.xml.model.handlers;
import java.util.Properties;
import org.jboss.tools.common.meta.action.impl.*;
import org.jboss.tools.common.meta.action.impl.handlers.*;
import org.jboss.tools.common.model.*;
import org.jboss.tools.common.model.filesystems.impl.DeleteFileHandler;
import org.jboss.tools.jst.web.model.ReferenceObject;
import org.jboss.tools.seam.pages.xml.model.SeamPagesConstants;
import org.jboss.tools.seam.pages.xml.model.helpers.SeamPagesDiagramHelper;
public class DeletePageItemHandler extends AbstractHandler implements SeamPagesConstants {
public boolean isEnabled(XModelObject object) {
if(object == null || !object.isObjectEditable()) return false;
if(!ENT_DIAGRAM_ITEM.equals(object.getModelEntity().getName())) return false;
ReferenceObject g = (ReferenceObject)object;
return g.getReference() != null || "true".equals(g.getAttributeValue("persistent"));
}
public boolean getSignificantFlag(XModelObject object) {
return getPage(object) == null;
}
private XModelObject getPage(XModelObject object) {
if(object == null) return null;
String path = object.getAttributeValue(ATTR_PATH);
return (path == null || path.length() == 0) ? null : object.getModel().getByPath(path);
}
public void executeHandler(XModelObject object, Properties p) throws XModelException {
if(!isEnabled(object)) return;
ReferenceObject g = (ReferenceObject)object;
XModelObject diagram = object.getParent();
XModelObject page = getPage(object);
boolean deletePage = (page != null);
Boolean pb = p == null ? null : (Boolean)p.get("deletePage");
if(pb != null) {
deletePage = deletePage && pb.booleanValue();
} else if(deletePage) {
String message = "Delete " + DefaultCreateHandler.title(object, false) + "?";
int q = confirmPageDelete(object.getModel(), message);
if(q < 0) return;
deletePage = (q == 0);
if(p != null) p.put("deletePage", Boolean.valueOf(q == 0));
}
g.getModel().changeObjectAttribute(g, "persistent", "false");
XModelObject c = g.getReference();
if(c != null) {
DefaultRemoveHandler.removeFromParent(c);
}
SeamPagesDiagramHelper.getHelper(diagram).updateDiagram();
if(deletePage) {
new DeleteFileHandler().executeHandler(page, null);
}
}
private int confirmPageDelete(XModel model, String message) {
ServiceDialog d = model.getService();
Properties dp = new Properties();
dp.setProperty(ServiceDialog.DIALOG_MESSAGE, message);
dp.put(ServiceDialog.CHECKED, Boolean.FALSE);
dp.setProperty(ServiceDialog.CHECKBOX_MESSAGE, "Delete file from disk");
if(!d.openConfirm(dp)) return -1;
Boolean b = (Boolean)dp.get(ServiceDialog.CHECKED);
return (b != null && b.booleanValue()) ? 0 : 1;
}
}