series trees on-the-fly

src/org/geometerplus/fbreader/library/SeriesListTree.java

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+/*
+ * Copyright (C) 2009-2013 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.Collections;
+import java.util.List;
+
+import org.geometerplus.fbreader.book.*;
+
+public class SeriesListTree extends FirstLevelTree {
+	SeriesListTree(RootTree root) {
+		super(root, ROOT_BY_SERIES);
+	}
+
+	@Override
+	public Status getOpeningStatus() {
+		if (!Collection.hasSeries()) {
+			return Status.CANNOT_OPEN;
+		}
+		return Status.ALWAYS_RELOAD_BEFORE_OPENING;
+	}
+
+	@Override
+	public String getOpeningStatusMessage() {
+		return getOpeningStatus() == Status.CANNOT_OPEN
+			? "noSeries" : super.getOpeningStatusMessage();
+	}
+
+	@Override
+	public void waitForOpening() {
+		clear();
+		for (String s : Collection.series()) {
+			createSeriesSubTree(s);
+		}
+	}
+
+	@Override
+	public boolean onBookEvent(BookEvent event, Book book) {
+		switch (event) {
+			case Added:
+			{
+				final SeriesInfo info = book.getSeriesInfo();
+				return info != null && createSeriesSubTree(info.Title);
+			}
+			case Removed:
+				// TODO: implement
+				return false;
+			default:
+			case Updated:
+				// TODO: implement
+				return false;
+		}
+	}
+
+	private boolean createSeriesSubTree(String series) {
+		final SeriesTree temp = new SeriesTree(Collection, series);
+		int position = Collections.binarySearch(subTrees(), temp);
+		if (position >= 0) {
+			return false;
+		} else {
+			new SeriesTree(this, series, - position - 1);
+			return true;
+		}
+	}
+}