/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.ade.containerpage.client;
import org.opencms.gwt.client.dnd.CmsDNDHandler;
import org.opencms.gwt.client.dnd.CmsDNDHandler.Orientation;
import org.opencms.gwt.client.dnd.I_CmsDNDController;
import org.opencms.gwt.client.dnd.I_CmsDraggable;
import org.opencms.gwt.client.dnd.I_CmsDropTarget;
import org.opencms.gwt.client.ui.CmsList;
import org.opencms.gwt.client.ui.CmsListItem;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
/**
* The favorites editing drag and drop controller.<p>
*
* @since 8.0.0
*/
public class CmsFavoritesDNDController implements I_CmsDNDController {
/** The starting position. */
private int m_startPosition;
/** The sortable list. */
private CmsList<CmsListItem> m_list;
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onAnimationStart(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onAnimationStart(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
// nothing to do
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onBeforeDrop(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public boolean onBeforeDrop(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
// nothing to do
return true;
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onDragCancel(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onDragCancel(I_CmsDraggable draggable, I_CmsDropTarget target, final CmsDNDHandler handler) {
m_list.insertItem((CmsListItem)draggable, m_startPosition);
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
/**
* @see com.google.gwt.user.client.Command#execute()
*/
public void execute() {
handler.clearTargets();
}
});
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onDragStart(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
@SuppressWarnings("unchecked")
public boolean onDragStart(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
handler.setOrientation(Orientation.VERTICAL);
if ((target instanceof CmsList) && (draggable instanceof CmsListItem)) {
m_list = (CmsList<CmsListItem>)target;
m_startPosition = m_list.getItemPosition((CmsListItem)draggable);
handler.clearTargets();
handler.addTarget(target);
target.getElement().insertBefore(handler.getPlaceholder(), draggable.getElement());
return true;
}
return false;
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onDrop(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
@SuppressWarnings("unchecked")
public void onDrop(I_CmsDraggable draggable, I_CmsDropTarget target, final CmsDNDHandler handler) {
if (target instanceof CmsList) {
CmsList<CmsListItem> list = (CmsList<CmsListItem>)target;
if (list.getWidgetCount() > target.getPlaceholderIndex()) {
list.insertItem((CmsListItem)draggable, target.getPlaceholderIndex());
} else {
list.addItem((CmsListItem)draggable);
}
}
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
/**
* @see com.google.gwt.user.client.Command#execute()
*/
public void execute() {
handler.clearTargets();
}
});
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onPositionedPlaceholder(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onPositionedPlaceholder(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
// nothing to do
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onTargetEnter(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public boolean onTargetEnter(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
//draggable.getElement().getStyle().setDisplay(Display.NONE);
return true;
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onTargetLeave(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onTargetLeave(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
//draggable.getElement().getStyle().setDisplay(Display.BLOCK);
}
}