Android Open Source - EBrowser Event Controller

• Back to Example/project  ↑

From Project

Back to project page EBrowser.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Zirco Browser for Android//  w  ww . j  a  va  2 s  .com
 * 
 * Copyright (C) 2010 J. Devauchelle and contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 3 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

package org.zirco.events;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * Implementation of the EventController.
 */
public final class EventController {
  
  private List<IDownloadEventsListener> mDownloadListeners;
  
  /**
   * Holder for singleton implementation.
   */
  private static class EventControllerHolder {
    private static final EventController INSTANCE = new EventController();
  }
  
  /**
   * Get the unique instance of the Controller.
   * @return The instance of the Controller
   */
  public static EventController getInstance() {
    return EventControllerHolder.INSTANCE;
  }
  
  /**
   * Private Constructor.
   */
  private EventController() {
    mDownloadListeners = new ArrayList<IDownloadEventsListener>();
  }
  
  /**
   * Add a listener for download events.
   * @param listener The listener to add.
   */
  public synchronized void addDownloadListener(IDownloadEventsListener listener) {
    
    if (!mDownloadListeners.contains(listener)) {
      mDownloadListeners.add(listener);
    }
  }
  
  /**
   * Remove a listener for download events.
   * @param listener The listener to remove.
   */
  public synchronized void removeDownloadListener(IDownloadEventsListener listener) {
    mDownloadListeners.remove(listener);
  }
  
  /**
   * Trigger a download event.
   * @param event The event.
   * @param data Additional data.
   */
  public synchronized void fireDownloadEvent(String event, Object data) {
    Iterator<IDownloadEventsListener> iter = mDownloadListeners.iterator();
    while (iter.hasNext()) {
      iter.next().onDownloadEvent(event, data);
    }
  }

}

Java Source Code List

• Back to Example/project  ↑