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/*
 * 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.

* * @since 8.0.0 */ public class CmsFavoritesDNDController implements I_CmsDNDController { /** The starting position. */ private int m_startPosition; /** The sortable list. */ private CmsList 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)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 list = (CmsList)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) { 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) { // nothing to do } }





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