/*******************************************************************************
* 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 com.google.gdt.eclipse.designer.mobile.device.model.DeviceInfo;
import org.xml.sax.Attributes;
import java.util.List;
/**
* Implementation of {@link Command} that moves {@link DeviceInfo}.
*
* @author scheglov_ke
* @coverage gwt.mobile.device
*/
public final class DeviceMoveCommand extends Command {
public static final String ID = "deviceMove";
private final String m_id;
private final String m_categoryId;
private final String m_nextDeviceId;
////////////////////////////////////////////////////////////////////////////
//
// Constructors
//
////////////////////////////////////////////////////////////////////////////
public DeviceMoveCommand(DeviceInfo device, CategoryInfo category, DeviceInfo nextDevice) {
m_id = device.getId();
m_categoryId = category.getId();
m_nextDeviceId = nextDevice != null ? nextDevice.getId() : null;
}
public DeviceMoveCommand(Attributes attributes) {
m_id = attributes.getValue("id");
m_categoryId = attributes.getValue("category");
m_nextDeviceId = attributes.getValue("nextDevice");
}
////////////////////////////////////////////////////////////////////////////
//
// Execution
//
////////////////////////////////////////////////////////////////////////////
@Override
public void execute() {
DeviceInfo device = DeviceManager.getDevice(m_id);
CategoryInfo category = DeviceManager.getCategory(m_categoryId);
if (device == null || category == null) {
return;
}
// don't move before itself, this is no-op
if (m_id.equals(m_nextDeviceId)) {
return;
}
// remove source entry
device.getCategory().removeDevice(device);
// add to new location
DeviceInfo nextDevice = DeviceManager.getDevice(m_nextDeviceId);
if (nextDevice != null) {
int index = category.getDevices().indexOf(nextDevice);
category.addDevice(index, device);
} else {
category.addDevice(device);
}
}
////////////////////////////////////////////////////////////////////////////
//
// Access
//
////////////////////////////////////////////////////////////////////////////
@Override
protected void addAttributes() {
addAttribute("id", m_id);
addAttribute("category", m_categoryId);
addAttribute("nextDevice", m_nextDeviceId);
}
@Override
public void addToCommandList(List<Command> commands) {
commands.add(this);
}
}