/*
* Copyright 2009 Sven Meier
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 wicketdnd.examples;
import java.util.Set;
import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import wicketdnd.DragSource;
import wicketdnd.DropTarget;
import wicketdnd.Location;
import wicketdnd.Operation;
import wicketdnd.Transfer;
/**
* @author Sven Meier
*/
public class ListsExample extends Example
{
public ListsExample(String id)
{
super(id);
add(newList("vertical"));
add(newList("horizontal"));
setTypes(new String[] { "toolbar" });
}
private Component newList(String id)
{
final FooList foos = new FooList();
final WebMarkupContainer list = new WebMarkupContainer(id);
final ListView<Foo> items = new ListView<Foo>("items", foos)
{
@Override
protected ListItem<Foo> newItem(int index, IModel<Foo> model)
{
ListItem<Foo> item = super.newItem(index, model);
item.setOutputMarkupId(true);
return item;
}
@Override
protected void populateItem(ListItem<Foo> item)
{
item.add(new Label("name", new PropertyModel<String>(item.getModel(), "name")));
}
};
list.add(items);
list.add(new DragSource()
{
@Override
public Set<Operation> getOperations()
{
return dragOperations();
}
@Override
public String[] getTypes()
{
return types();
}
@Override
public void onAfterDrop(AjaxRequestTarget target, Transfer transfer)
{
if (transfer.getOperation() == Operation.MOVE)
{
foos.remove(transfer.getData());
target.add(list);
}
}
}.drag("div.item").initiate("span.initiate"));
DropTarget dropTarget = new DropTarget()
{
@Override
public Set<Operation> getOperations()
{
return dropOperations();
}
@Override
public String[] getTypes()
{
return types();
}
@Override
public void onDrop(AjaxRequestTarget target, Transfer transfer, Location location)
{
if (location.getComponent() == list)
{
foos.add(operate(transfer));
}
else
{
Foo foo = location.getModelObject();
switch (location.getAnchor())
{
case TOP :
case LEFT :
foos.addBefore(operate(transfer), foo);
break;
case BOTTOM :
case RIGHT :
foos.addAfter(operate(transfer), foo);
break;
default :
transfer.reject();
}
target.add(list);
}
}
};
if ("vertical".equals(id))
{
dropTarget.dropTopAndBottom("div.item");
}
else
{
dropTarget.dropLeftAndRight("div.item");
}
list.add(dropTarget);
return list;
}
}