string list as book path (only first element can be set from preferences)

src/org/geometerplus/android/fbreader/crash/FixBooksDirectoryActivity.java

@@ -19,6 +19,9 @@
 
 package org.geometerplus.android.fbreader.crash;
 
+import java.util.LinkedList;
+import java.util.List;
+
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
@@ -56,7 +59,12 @@ public class FixBooksDirectoryActivity extends Activity {
 		okButton.setText(buttonResource.getResource("ok").getValue());
 		okButton.setOnClickListener(new Button.OnClickListener() {
 			public void onClick(View v) {
-				Paths.BooksDirectoryOption().setValue(directoryView.getText().toString());
+				final List<String> bookPath =
+					new LinkedList<String>(Paths.BookPathOption().getValue());
+				final String newDirectory = directoryView.getText().toString();
+				bookPath.remove(newDirectory);
+				bookPath.add(0, newDirectory);
+				Paths.BookPathOption().setValue(bookPath);
 				startActivity(new Intent(FixBooksDirectoryActivity.this, FBReader.class));
 				finish();
 			}

src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java

@@ -111,9 +111,7 @@ public class BookCollectionShadow extends AbstractBookCollection implements Serv
 	public synchronized void reset(boolean force) {
 		if (myInterface != null) {
 			try {
-				myInterface.reset(
+				myInterface.reset(Paths.BookPathOption().getValue(), force);
-					Collections.singletonList(Paths.BooksDirectoryOption().getValue()), force
-				);
 			} catch (RemoteException e) {
 			}
 		}

src/org/geometerplus/android/fbreader/libraryService/LibraryService.java

@@ -89,7 +89,7 @@ public class LibraryService extends Service {
 
 		LibraryImplementation() {
 			myDatabase = SQLiteBooksDatabase.Instance(LibraryService.this);
-			reset(Collections.singletonList(Paths.BooksDirectoryOption().getValue()), true);
+			reset(Paths.BookPathOption().getValue(), true);
 		}
 
 		public void reset(List<String> bookDirectories, boolean force) {

src/org/geometerplus/android/fbreader/preferences/PreferenceActivity.java

@@ -80,8 +80,8 @@ public class PreferenceActivity extends ZLPreferenceActivity {
 			String.valueOf(new DecimalFormatSymbols(Locale.getDefault()).getDecimalSeparator());
 
 		final Screen directoriesScreen = createPreferenceScreen("directories");
-		directoriesScreen.addPreference(new ZLStringOptionPreference(
+		directoriesScreen.addPreference(new ZLStringListOptionPreference(
-			this, Paths.BooksDirectoryOption(), directoriesScreen.Resource, "books"
+			this, Paths.BookPathOption(), directoriesScreen.Resource, "books"
 		) {
 			protected void setValue(String value) {
 				super.setValue(value);

src/org/geometerplus/android/fbreader/preferences/ZLStringListOptionPreference.java

@@ -0,0 +1,51 @@
+/*
+ * 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.android.fbreader.preferences;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.geometerplus.zlibrary.core.options.ZLStringListOption;
+import org.geometerplus.zlibrary.core.resources.ZLResource;
+
+import android.content.Context;
+
+class ZLStringListOptionPreference extends ZLStringPreference {
+	private final ZLStringListOption myOption;
+
+	ZLStringListOptionPreference(Context context, ZLStringListOption option, ZLResource rootResource, String resourceKey) {
+		super(context, rootResource, resourceKey);
+		myOption = option;
+		final List<String> optionValues = myOption.getValue();
+		super.setValue(optionValues.isEmpty() ? "" : optionValues.get(0));
+	}
+
+	@Override
+	protected void setValue(String value) {
+		super.setValue(value);
+		final List<String> optionValues = new ArrayList<String>(myOption.getValue());
+		if (optionValues.isEmpty()) {
+			optionValues.add(value);
+		} else {
+			optionValues.set(0, value);
+		}
+		myOption.setValue(optionValues);
+	}
+}

src/org/geometerplus/fbreader/Paths.java

@@ -19,17 +19,24 @@
 
 package org.geometerplus.fbreader;
 
+import java.util.List;
+
 import android.os.Environment;
 
 import org.geometerplus.zlibrary.core.options.ZLStringOption;
+import org.geometerplus.zlibrary.core.options.ZLStringListOption;
 
 public abstract class Paths {
 	public static String cardDirectory() {
 		return Environment.getExternalStorageDirectory().getPath();
 	}
 
-	public static ZLStringOption BooksDirectoryOption() {
+	private static String defaultBookDirectory() {
-		return new ZLStringOption("Files", "BooksDirectory", cardDirectory() + "/Books");
+		return cardDirectory() + "/Books";
+	}
+
+	public static ZLStringListOption BookPathOption() {
+		return new ZLStringListOption("Files", "BooksDirectory", defaultBookDirectory(), "\n");
 	}
 
 	public static ZLStringOption FontsDirectoryOption() {
@@ -41,7 +48,8 @@ public abstract class Paths {
 	}
 
 	public static String mainBookDirectory() {
-		return BooksDirectoryOption().getValue();
+		final List<String> bookPath = BookPathOption().getValue();
+		return bookPath.isEmpty() ? defaultBookDirectory() : bookPath.get(0);
 	}
 
 	public static String cacheDirectory() {

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

@@ -27,12 +27,14 @@ import org.geometerplus.fbreader.Paths;
 public class FileFirstLevelTree extends FirstLevelTree {
 	FileFirstLevelTree(RootTree root) {
 		super(root, ROOT_FILE_TREE);
-		addChild(Paths.BooksDirectoryOption().getValue(), "fileTreeLibrary");
+		for (String dir : Paths.BookPathOption().getValue()) {
-		addChild("/", "fileTreeRoot");
+			addChild(dir, "fileTreeLibrary", dir);
-		addChild(Paths.cardDirectory(), "fileTreeCard");
+		}
+		addChild("/", "fileTreeRoot", null);
+		addChild(Paths.cardDirectory(), "fileTreeCard", null);
 	}
 
-	private void addChild(String path, String resourceKey) {
+	private void addChild(String path, String resourceKey, String summary) {
 		final ZLFile file = ZLFile.createFileByPath(path);
 		if (file != null) {
 			final ZLResource resource = resource().getResource(resourceKey);
@@ -40,7 +42,7 @@ public class FileFirstLevelTree extends FirstLevelTree {
 				this,
 				file,
 				resource.getValue(),
-				resource.getResource("summary").getValue()
+				summary != null ? summary : resource.getResource("summary").getValue()
 			);
 		}
 	}