AbstractLibrary.java

/*
 * Copyright (C) 2007-2012 Geometer Plus <contact@geometerplus.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

package org.geometerplus.fbreader.library;

import java.util.*;

public abstract class AbstractLibrary {
	private final List<ChangeListener> myListeners = Collections.synchronizedList(new LinkedList<ChangeListener>());

	public interface ChangeListener {
		public enum Code {
			BookAdded,
			BookRemoved,
			StatusChanged,
			Found,
			NotFound
		}

		void onLibraryChanged(Code code);
	}

	public void addChangeListener(ChangeListener listener) {
		myListeners.add(listener);
	}

	public void removeChangeListener(ChangeListener listener) {
		myListeners.remove(listener);
	}

	protected void fireModelChangedEvent(ChangeListener.Code code) {
		synchronized (myListeners) {
			for (ChangeListener l : myListeners) {
				l.onLibraryChanged(code);
			}
		}
	}

	public abstract boolean isUpToDate();

	public static final int REMOVE_DONT_REMOVE = 0x00;
	public static final int REMOVE_FROM_LIBRARY = 0x01;
	public static final int REMOVE_FROM_DISK = 0x02;
	public static final int REMOVE_FROM_LIBRARY_AND_DISK = REMOVE_FROM_LIBRARY | REMOVE_FROM_DISK;
	public abstract boolean canRemoveBookFile(Book book);
	public abstract void removeBook(Book book, int removeMode);

	public abstract Book getRecentBook();
	public abstract Book getPreviousBook();
	public abstract void addBookToRecentList(Book book);

	public abstract boolean isBookInFavorites(Book book);
	public abstract void addBookToFavorites(Book book);
	public abstract void removeBookFromFavorites(Book book);

	public abstract void startBookSearch(final String pattern);

	public abstract List<Bookmark> allBookmarks();
	public abstract List<Bookmark> invisibleBookmarks(Book book);
}