/**
* $RCSfile: ,v $
* $Revision: $
* $Date: $
*
* Copyright (C) 2004-2011 Jive Software. All rights reserved.
*
* 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.jivesoftware.spark.component.browser;
import javax.swing.JPanel;
import java.util.ArrayList;
import java.util.List;
/**
* Abstract class describing a particular type of component capable of rendering html.
*
* @author Derek DeMoro
* @see NativeBrowserViewer
*/
public abstract class BrowserViewer extends JPanel {
private static final long serialVersionUID = -5389246902135069702L;
private List<BrowserListener> listeners = new ArrayList<BrowserListener>();
/**
* Add a BrowserListener.
*
* @param listener the listener.
*/
public void addBrowserListener(BrowserListener listener) {
listeners.add(listener);
}
/**
* Remove a BrowserListener.
*
* @param listener the listener.
*/
public void removeBrowserListener(BrowserListener listener) {
listeners.remove(listener);
}
/**
* Fire all BrowserListeners.
*
* @param document the document that has been downloaded.
*/
public void fireBrowserListeners(String document) {
for (BrowserListener listener : listeners) {
listener.documentLoaded(document);
}
}
public void documentLoaded(String document) {
fireBrowserListeners(document);
}
/**
* Should create the UI necessary to display html.
*/
public abstract void initializeBrowser();
/**
* Should load the given url.
*
* @param url the url to load.
*/
public abstract void loadURL(String url);
/**
* Should go back in history one page.
*/
public abstract void goBack();
}