UploadPanel.java

/**
 * Copyright 2011 the original author or authors.
 *
 * 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 org.bricket.plugin.picture.web;

import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.upload.FileUpload;
import org.apache.wicket.markup.html.form.upload.FileUploadField;
import org.apache.wicket.model.Model;
import org.apache.wicket.util.lang.Bytes;
import org.bricket.web.BricketPanel;

/**
 * @author Ingo Renner
 * @author Henning Teek
 * 
 */
public abstract class UploadPanel extends BricketPanel {

    private int maxMbSize;

    public UploadPanel(String id) {
        this(id, 10);
    }

    public UploadPanel(String id, int maxMbSize) {
        super(id);
        this.maxMbSize = maxMbSize;
    }

    @Override
    protected void initGui() {
        final FileUploadField uploadField = new FileUploadField("file", new Model<FileUpload>());
        @SuppressWarnings("rawtypes")
        Form form = new Form("uploadForm") {
            @Override
            protected void onSubmit() {
                FileUpload upload = uploadField.getFileUpload();
                String filename = upload.getClientFileName();
                handleUpload(upload, filename);
            }
        };
        uploadField.setRequired(true);
        form.add(uploadField);
        // Wegen Bug in wicket 1.4.14 deaktiviert
        // form.add(new UploadProgressBar("progress", form));
        // html Zeile 15 <div wicket:id="progress"></div>
        // Max size of uploaded file.
        form.setMaxSize(Bytes.megabytes(maxMbSize));
        add(form);
    }

    protected abstract void handleUpload(FileUpload upload, String filename);
}