org.wicketstuff.table.cell.renders.file.FileRender.java Source code

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Here is the source code for org.wicketstuff.table.cell.renders.file.FileRender.java

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/*
 * 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.wicketstuff.table.cell.renders.file;

import java.io.File;

import org.apache.wicket.Component;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.MarkupStream;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.DownloadLink;
import org.apache.wicket.model.IModel;
import org.wicketstuff.table.SelectableListItem;
import org.wicketstuff.table.cell.CellRender;

/**
 * @author Pedro Henrique Oliveira dos Santos
 * 
 */
public class FileRender implements CellRender {

    @Override
    public Component getRenderComponent(String id, IModel model, SelectableListItem parent, int row, int column) {
        final File f = (File) model.getObject();
        if (f != null && f.exists()) {
            return new DownloadLink(id, f, f.getName()) {
                @Override
                protected void onComponentTag(ComponentTag tag) {
                    tag.setName("a");
                    super.onComponentTag(tag);
                }

                @Override
                protected void onComponentTagBody(MarkupStream markupStream, ComponentTag openTag) {
                    super.onComponentTagBody(markupStream, openTag);
                    getResponse().write(f.getName());
                }
            };
        } else {
            return new Label(id, f == null ? null : f.getName());
        }
    }

}