/*
* 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.head.filter;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import org.apache.wicket.markup.head.HeaderItem;
import org.apache.wicket.markup.head.IWrappedHeaderItem;
import org.apache.wicket.request.Response;
/**
* {@link HeaderItem} that specifies the filter it belongs to. Dependencies of a
* {@code FilteredHeaderItem} belong to the same filter. If used in conjunction with
* {@link JavaScriptFilteredIntoFooterHeaderResponse}, use
* {@link FilteringHeaderResponse#DEFAULT_HEADER_FILTER_NAME DEFAULT_HEADER_FILTER_NAME} to render
* items in the header.
*
* @author papegaaij
*/
public class FilteredHeaderItem extends HeaderItem implements IWrappedHeaderItem
{
private HeaderItem wrapped;
private String filterName;
/**
* Construct.
*
* @param wrapped
* the actual {@link HeaderItem}
* @param filterName
* the name of the filter this item belongs to
*/
public FilteredHeaderItem(HeaderItem wrapped, String filterName)
{
this.wrapped = wrapped;
this.filterName = filterName;
}
/**
* @return the actual {@link HeaderItem}
*/
@Override
public HeaderItem getWrapped()
{
return wrapped;
}
@Override
public FilteredHeaderItem wrap(HeaderItem item)
{
return new FilteredHeaderItem(item, getFilterName());
}
/**
* @return the name of the filter this item belongs to
*/
public String getFilterName()
{
return filterName;
}
@Override
public Iterable<?> getRenderTokens()
{
return getWrapped().getRenderTokens();
}
@Override
public void render(Response response)
{
getWrapped().render(response);
}
@Override
public List<HeaderItem> getDependencies()
{
List<FilteredHeaderItem> ret = new ArrayList<>();
for (HeaderItem curDependency : getWrapped().getDependencies())
{
ret.add(wrap(curDependency));
}
List<HeaderItem> dependencies = super.getDependencies();
dependencies.addAll(ret);
return dependencies;
}
@Override
public Iterable<? extends HeaderItem> getProvidedResources()
{
return getWrapped().getProvidedResources();
}
@Override
public int hashCode()
{
return Objects.hash(wrapped, filterName);
}
@Override
public boolean equals(Object o)
{
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
FilteredHeaderItem that = (FilteredHeaderItem) o;
return Objects.equals(wrapped, that.wrapped) &&
Objects.equals(filterName, that.filterName);
}
@Override
public String toString()
{
return "FilteredHeaderItem(" + getWrapped() + ", " + getFilterName() + ")";
}
}