/*******************************************************************************
* Copyright 2011 Google Inc. All Rights Reserved.
*
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/
package com.google.gdt.eclipse.designer.mobile.device.command;
import com.google.gdt.eclipse.designer.mobile.device.DeviceManager;
import com.google.gdt.eclipse.designer.mobile.device.model.CategoryInfo;
import org.xml.sax.Attributes;
import java.util.List;
/**
* Implementation of {@link Command} that moves {@link CategoryInfo}.
*
* @author scheglov_ke
* @coverage gwt.mobile.device
*/
public final class CategoryMoveCommand extends Command {
public static final String ID = "categoryMove";
private final String m_id;
private final String m_nextCategoryId;
////////////////////////////////////////////////////////////////////////////
//
// Constructors
//
////////////////////////////////////////////////////////////////////////////
public CategoryMoveCommand(CategoryInfo category, CategoryInfo nextCategory) {
m_id = category.getId();
m_nextCategoryId = nextCategory != null ? nextCategory.getId() : null;
}
public CategoryMoveCommand(Attributes attributes) {
m_id = attributes.getValue("id");
m_nextCategoryId = attributes.getValue("nextCategory");
}
////////////////////////////////////////////////////////////////////////////
//
// Execution
//
////////////////////////////////////////////////////////////////////////////
@Override
public void execute() {
CategoryInfo category = DeviceManager.getCategory(m_id);
if (category == null) {
return;
}
// don't move before itself, this is no-op
if (m_id.equals(m_nextCategoryId)) {
return;
}
// remove source
List<CategoryInfo> categories = DeviceManager.getCategories();
categories.remove(category);
// add to new location
CategoryInfo nextCategory = DeviceManager.getCategory(m_nextCategoryId);
if (nextCategory != null) {
int index = categories.indexOf(nextCategory);
categories.add(index, category);
} else {
categories.add(category);
}
}
////////////////////////////////////////////////////////////////////////////
//
// Access
//
////////////////////////////////////////////////////////////////////////////
@Override
protected void addAttributes() {
addAttribute("id", m_id);
addAttribute("nextCategory", m_nextCategoryId);
}
}