/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.wicket.markup.html.image;
import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.html.image.Image.Cors;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
/**
* A component which displays external images within a picture tag.
*
* @see org.apache.wicket.markup.html.image.Source
*
* @author Tobias Soloschenko
* @author Sebastien Briquet
* @author Sven Meier
* @author Martin Grigorov
*
*/
public class ExternalSource extends ExternalImage
{
private static final long serialVersionUID = 1L;
private String media = null;
/**
* Creates an external source
*
* @param id
* the component id
* @param src
* the source URL
* @param srcSet
* a list of URLs placed in the srcset attribute
*/
public ExternalSource(String id)
{
super(id, null, Model.ofList(Collections.<Serializable> emptyList()));
}
/**
* Creates an external source
*
* @param id
* the component id
* @param src
* the source URL
* @param srcSet
* a list of URLs placed in the srcset attribute
*/
public ExternalSource(String id, List<Serializable> srcSet)
{
super(id, null, Model.ofList(srcSet));
}
/**
* Creates an external source
*
* @param id
* the component id
* @param src
* the model source URL
* @param srcSetModel
* a model list of URLs placed in the srcset attribute
*/
public ExternalSource(String id, IModel<List<Serializable>> srcSetModel)
{
super(id, null, srcSetModel);
}
@Override
protected void onComponentTag(ComponentTag tag)
{
checkComponentTag(tag, "source");
super.onComponentTag(tag);
if (getMedia() != null)
{
tag.put("media", getMedia());
}
}
/**
* Sets the media attribute information
*
* @param media
* the media attribute information
*/
public void setMedia(String media)
{
this.media = media;
}
/**
* Gets the media attribute information
*
* @return the media attribute information
*/
public String getMedia()
{
return media;
}
/**
* Unsupported for source tag
*/
@Override
public void setCrossOrigin(Cors crossorigin)
{
throw new UnsupportedOperationException(
"It is not allowed to set the crossorigin attribute for source tag");
}
/**
* Unsupported for source tag
*/
@Override
public final Cors getCrossOrigin()
{
return null;
}
}