Refresh catalogs button

git-svn-id: https://only.mawhrin.net/repos/FBReaderJ/trunk@1683 6a642e6f-84f6-412e-ac94-c4a38d5a04b0

TODO.network

@@ -16,7 +16,7 @@ NP: оповещение об изменениях в namespace'ах проис
 	DONE сделать DTD для xml-ей, как в OPDS, вместо существующего
 	DONE перенести xml на сервер
 		DONE кэширование каталога
-	** сделать кнопку "Обновить список каталогов" -- форсировать обновление кэша
+	DONE сделать кнопку "Обновить список каталогов" -- форсировать обновление кэша
 	** умное обновление каталогов согласно ID и UPDATED:
 		** добавлять новые
 		** пересоздавать измененные

data/resources/application/de.xml

@@ -64,6 +64,7 @@
 			<node name="signOut" value="Ausloggen (%s)"/>
 			<node name="refillAccount" value="Account aufladen"/>
 			<node name="addCustomCatalog" toBeTranslated="true" value="Add catalog"/>
+			<node name="refreshCatalogsList" toBeTranslated="true" value="Refresh catalogs"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -278,6 +279,7 @@
 			<node name="purchaseBook" value="Buch wird gekauft. Bitte warten..." />
 			<node name="registerUser" value="Neuer Account wird registriert. Bitte warten..." />
 			<node name="loadingCatalogInfo" toBeTranslated="true" value="Loading catalog information. Please, wait..." />
+			<node name="updatingCatalogsList" toBeTranslated="true" value="Updating catalogs list. Please, wait..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="Interner Server-Fehler" />

data/resources/application/en.xml

@@ -63,6 +63,7 @@
 			<node name="signOut" value="Sign out (%s)"/>
 			<node name="refillAccount" value="Refill account"/>
 			<node name="addCustomCatalog" value="Add catalog"/>
+			<node name="refreshCatalogsList" value="Refresh catalogs"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -277,6 +278,7 @@
 			<node name="purchaseBook" value="Purchase book. Please, wait..." />
 			<node name="registerUser" value="Registering new account. Please, wait..." />
 			<node name="loadingCatalogInfo" value="Loading catalog information. Please, wait..." />
+			<node name="updatingCatalogsList" value="Updating catalogs list. Please, wait..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="Internal server error" />

data/resources/application/fr.xml

@@ -64,6 +64,7 @@
 			<node name="signOut" value="Déconnexion (%s)"/>
 			<node name="refillAccount" value="Recréditer le compte"/>
 			<node name="addCustomCatalog" toBeTranslated="true" value="Add catalog"/>
+			<node name="refreshCatalogsList" toBeTranslated="true" value="Refresh catalogs"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -278,6 +279,7 @@
 			<node name="purchaseBook" value="Achat du livre. Veuillez patienter..."/>
 			<node name="registerUser" value="Inscription en cours. Veuillez patienter..."/>
 			<node name="loadingCatalogInfo" toBeTranslated="true" value="Loading catalog information. Please, wait..." />
+			<node name="updatingCatalogsList" toBeTranslated="true" value="Updating catalogs list. Please, wait..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="Erreur interne du serveur"/>

data/resources/application/hu.xml

@@ -64,6 +64,7 @@
 			<node name="signOut" value="Kijelentkezés (%s)"/>
 			<node name="refillAccount" value="Számla feltöltése"/>
 			<node name="addCustomCatalog" toBeTranslated="true" value="Add catalog"/>
+			<node name="refreshCatalogsList" toBeTranslated="true" value="Refresh catalogs"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -278,6 +279,7 @@
 			<node name="purchaseBook" value="Könyv vásárlása. Kérjük, várjon..." />
 			<node name="registerUser" value="Fiók létrehozása. Kérjük, várjon..." />
 			<node name="loadingCatalogInfo" toBeTranslated="true" value="Loading catalog information. Please, wait..." />
+			<node name="updatingCatalogsList" toBeTranslated="true" value="Updating catalogs list. Please, wait..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="Belső szerverhiba" />

data/resources/application/it.xml

@@ -64,6 +64,7 @@
 			<node name="signOut" value="Esci (%s)"/>
 			<node name="refillAccount" value="Ricarica account"/>
 			<node name="addCustomCatalog" value="Aggiungi catalogo"/>
+			<node name="refreshCatalogsList" toBeTranslated="true" value="Refresh catalogs"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -278,6 +279,7 @@
 			<node name="purchaseBook" value="Acquisto libro. Attendere prego..." />
 			<node name="registerUser" value="Registrazione nuovo account. Attendere prego..." />
 			<node name="loadingCatalogInfo" toBeTranslated="true" value="Loading catalog information. Please, wait..." />
+			<node name="updatingCatalogsList" toBeTranslated="true" value="Updating catalogs list. Please, wait..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="Errore Server Interno" />

data/resources/application/ru.xml

@@ -63,6 +63,7 @@
 			<node name="signOut" value="Выйти (%s)"/>
 			<node name="refillAccount" value="Пополнить счёт"/>
 			<node name="addCustomCatalog" value="Добавить каталог"/>
+			<node name="refreshCatalogsList" value="Обновить каталоги"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -277,6 +278,7 @@
 			<node name="purchaseBook" value="Идет покупка книги. Подождите, пожалуйста..." />
 			<node name="registerUser" value="Регистрируем пользователя. Подождите, пожалуйста..." />
 			<node name="loadingCatalogInfo" value="Загрузка информации из каталога. Подождите, пожалуйста..." />
+			<node name="updatingCatalogsList" value="Обновляется список каталогов. Подождите, пожалуйста..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="Внутренняя ошибка сервера" />

data/resources/application/vi.xml

@@ -64,6 +64,7 @@
 			<node name="signOut" value="Đăng xuất (%s)"/>
 			<node name="refillAccount" value="Tái đầy tài khoản "/>
 			<node name="addCustomCatalog" toBeTranslated="true" value="Add catalog"/>
+			<node name="refreshCatalogsList" toBeTranslated="true" value="Refresh catalogs"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -278,6 +279,7 @@
 			<node name="purchaseBook" value="Mua sách. Xin chờ..." />
 			<node name="registerUser" value="Đang đăng ký tài khoản. Xin chờ..." />
 			<node name="loadingCatalogInfo" toBeTranslated="true" value="Loading catalog information. Please, wait..." />
+			<node name="updatingCatalogsList" toBeTranslated="true" value="Updating catalogs list. Please, wait..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="Lỗi mạng nội bộ " />

data/resources/application/zh.xml

@@ -64,6 +64,7 @@
 			<node name="signOut" value="退出 (%s)"/>
 			<node name="refillAccount" toBeTranslated="true" value="Refill account"/>
 			<node name="addCustomCatalog" toBeTranslated="true" value="Add catalog"/>
+			<node name="refreshCatalogsList" toBeTranslated="true" value="Refresh catalogs"/>
 		</node>
 	</node>
 	<node name="networkBookView">
@@ -278,6 +279,7 @@
 			<node name="purchaseBook" value="书籍购买中. 请等待..." />
 			<node name="registerUser" value="正在注册新账号，请稍等..." />
 			<node name="loadingCatalogInfo" toBeTranslated="true" value="Loading catalog information. Please, wait..." />
+			<node name="updatingCatalogsList" toBeTranslated="true" value="Updating catalogs list. Please, wait..."/>
 		</node>
 		<node name="networkError">
 			<node name="internalError" value="内部服务器出错" />

src/org/geometerplus/android/fbreader/network/LibraryInitializationService.java

@@ -46,7 +46,7 @@ public class LibraryInitializationService extends Service {
 		final Handler handler = new Handler() {
 			@Override
 			public void handleMessage(Message msg) {
-				if (msg.what > 0) {
+				if (msg.what > 0 && msg.obj == null) {
 					view.finishBackgroundUpdate();
 				}
 				stopSelf();
@@ -55,11 +55,13 @@ public class LibraryInitializationService extends Service {
 
 		final Thread thread = new Thread(new Runnable() {
 			public void run() {
-				boolean result = false; 
+				int code = 0;
+				String result = null;
 				try {
-					result = view.runBackgroundUpdate();
+					result = view.runBackgroundUpdate(false);
+					code = 1;
 				} finally {
-					handler.sendEmptyMessage(result ? 1 : 0);
+					handler.sendMessage(handler.obtainMessage(code, result));
 				}
 			}
 		});

src/org/geometerplus/android/fbreader/network/NetworkLibraryActivity.java

@@ -165,11 +165,17 @@ public class NetworkLibraryActivity extends NetworkBaseActivity {
 		return menu.add(0, index, Menu.NONE, label).setIcon(iconId);
 	}
 
+
+	private static final int MENU_SEARCH = 1;
+	private static final int MENU_REFRESH = 2;
+	private static final int MENU_ADD_CATALOG = 3;
+
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu) {
 		super.onCreateOptionsMenu(menu);
-		addMenuItem(menu, 1, "networkSearch", R.drawable.ic_menu_networksearch);
-		addMenuItem(menu, 2, "addCustomCatalog", android.R.drawable.ic_menu_add);
+		addMenuItem(menu, MENU_SEARCH, "networkSearch", R.drawable.ic_menu_networksearch);
+		addMenuItem(menu, MENU_ADD_CATALOG, "addCustomCatalog", android.R.drawable.ic_menu_add);
+		addMenuItem(menu, MENU_REFRESH, "refreshCatalogsList", R.drawable.ic_menu_refresh);
 		return true;
 	}
 
@@ -177,18 +183,21 @@ public class NetworkLibraryActivity extends NetworkBaseActivity {
 	public boolean onPrepareOptionsMenu(Menu menu) {
 		super.onPrepareOptionsMenu(menu);
 		final boolean searchInProgress = NetworkView.Instance().containsItemsLoadingRunnable(NetworkSearchActivity.SEARCH_RUNNABLE_KEY);
-		menu.findItem(1).setEnabled(!searchInProgress);
+		menu.findItem(MENU_SEARCH).setEnabled(!searchInProgress);
 		return true;
 	}
 
 	@Override
 	public boolean onOptionsItemSelected(MenuItem item) {
 		switch (item.getItemId()) {
-			case 1:
+			case MENU_SEARCH:
 				return onSearchRequested();
-			case 2:
+			case MENU_ADD_CATALOG:
 				AddCustomCatalogItemActions.addCustomCatalog(this);
 				return true;
+			case MENU_REFRESH:
+				refreshCatalogsList();
+				return true;
 			default:
 				return true;
 		}
@@ -208,4 +217,34 @@ public class NetworkLibraryActivity extends NetworkBaseActivity {
 	public void onModelChanged() {
 		getListView().invalidateViews();
 	}
+
+	private void refreshCatalogsList() {
+		final NetworkView view = NetworkView.Instance();
+
+		final Handler handler = new Handler() {
+			@Override
+			public void handleMessage(Message msg) {
+				if (msg.obj == null) {
+					view.finishBackgroundUpdate();
+				} else {
+					final ZLResource dialogResource = ZLResource.resource("dialog");
+					final ZLResource boxResource = dialogResource.getResource("networkError");
+					final ZLResource buttonResource = dialogResource.getResource("button");
+					new AlertDialog.Builder(NetworkLibraryActivity.this)
+						.setTitle(boxResource.getResource("title").getValue())
+						.setMessage((String) msg.obj)
+						.setIcon(0)
+						.setPositiveButton(buttonResource.getResource("ok").getValue(), null)
+						.create().show();
+				}
+			}
+		};
+
+		((ZLAndroidDialogManager)ZLAndroidDialogManager.Instance()).wait("updatingCatalogsList", new Runnable() {
+			public void run() {
+				final String result = view.runBackgroundUpdate(true);
+				handler.sendMessage(handler.obtainMessage(0, result));
+			}
+		}, this);
+	}
 }

src/org/geometerplus/android/fbreader/network/NetworkView.java

@@ -80,12 +80,12 @@ class NetworkView {
 	}
 
 	// This method must be called from background thread
-	public boolean runBackgroundUpdate() {
-		return NetworkLibrary.Instance().runBackgroundUpdate();
+	public String runBackgroundUpdate(boolean clearCache) {
+		return NetworkLibrary.Instance().runBackgroundUpdate(clearCache);
 	}
 
 	// This method MUST be called from main thread
-	// This method can be called only after runBackgroundUpdate method has returned true
+	// This method has effect only when runBackgroundUpdate method has returned null
 	public void finishBackgroundUpdate() {
 		NetworkLibrary library = NetworkLibrary.Instance();
 		library.finishBackgroundUpdate();

src/org/geometerplus/fbreader/network/NetworkLibrary.java

@@ -232,7 +232,7 @@ public class NetworkLibrary {
 	public String initialize() {
 		final LinksComparator comparator = new LinksComparator(); 
 
-		final String error = OPDSLinkReader.loadOPDSLinks(false, new OnNewLinkListener() {
+		final String error = OPDSLinkReader.loadOPDSLinks(OPDSLinkReader.CACHE_LOAD, new OnNewLinkListener() {
 			public void onNewLink(INetworkLink link) {
 				addLinkInternal(myLoadedLinks, link, comparator);
 			}
@@ -295,11 +295,12 @@ public class NetworkLibrary {
 	private Object myBackgroundLock = new Object();
 
 	// This method must be called from background thread
-	public boolean runBackgroundUpdate() {
+	public String runBackgroundUpdate(boolean clearCache) {
 		synchronized (myBackgroundLock) {
 			myBackgroundLinks = new ArrayList<INetworkLink>();
 
-			final String error = OPDSLinkReader.loadOPDSLinks(true, new OnNewLinkListener() {
+			final int cacheMode = clearCache ? OPDSLinkReader.CACHE_CLEAR : OPDSLinkReader.CACHE_UPDATE;
+			final String error = OPDSLinkReader.loadOPDSLinks(cacheMode, new OnNewLinkListener() {
 				public void onNewLink(INetworkLink link) {
 					myBackgroundLinks.add(link);
 				}
@@ -309,23 +310,21 @@ public class NetworkLibrary {
 				myBackgroundLinks = null;
 			}
 
-			if (myBackgroundLinks == null) {
-				return false;
-			} else {
+			if (myBackgroundLinks != null) {
 				Collections.sort(myBackgroundLinks, new LinksComparator());
-				return true;
 			}
+			return error;
 		}
 	}
 
 	// This method MUST be called from main thread
-	// This method can be called only after runBackgroundUpdate method has returned true
+	// This method has effect only when runBackgroundUpdate method has returned null.
 	//
 	// synchronize() method MUST be called after this method
 	public void finishBackgroundUpdate() {
 		synchronized (myBackgroundLock) {
 			if (myBackgroundLinks == null) {
-				throw new RuntimeException("Invalid state: that's impossible!!!");
+				return;
 			}
 			synchronized (myLinks) {
 				myLoadedLinks.clear();

src/org/geometerplus/fbreader/network/opds/OPDSLinkReader.java

@@ -49,8 +49,11 @@ public class OPDSLinkReader {
 		return new OPDSCustomLink(ICustomNetworkLink.INVALID_ID, siteName, null, null, null, links);
 	}
 
+	public static final int CACHE_LOAD = 0;
+	public static final int CACHE_UPDATE = 1;
+	public static final int CACHE_CLEAR = 2;
 
-	public static String loadOPDSLinks(boolean updateNotLoad, final NetworkLibrary.OnNewLinkListener listener) {
+	public static String loadOPDSLinks(int cacheMode, final NetworkLibrary.OnNewLinkListener listener) {
 		final File dirFile = new File(Paths.networkCacheDirectory());
 		if (!dirFile.exists() && !dirFile.mkdirs()) {
 			return NetworkErrors.errorMessage("cacheDirectoryError");
@@ -64,7 +67,8 @@ public class OPDSLinkReader {
 		ATOMUpdated cacheUpdatedTime = null;
 		final File catalogsFile = new File(dirFile, fileName);
 		if (catalogsFile.exists()) {
-			if (updateNotLoad) {
+			switch (cacheMode) {
+			case CACHE_UPDATE:
 				try {
 					final OPDSLinkXMLReader reader = new OPDSLinkXMLReader();
 					reader.read(new FileInputStream(catalogsFile));
@@ -77,16 +81,23 @@ public class OPDSLinkReader {
 				final long valid = 7 * 24 * 60 * 60 * 1000; // one week in milliseconds; FIXME: hardcoded const
 				if (diff >= 0 && diff <= valid) {
 					goodCache = true;
-				} else {
-					oldCache = new File(dirFile, "_" + fileName);
-					oldCache.delete();
-					if (!catalogsFile.renameTo(oldCache)) {
-						catalogsFile.delete();
-						oldCache = null;
-					}
+					break;
 				}
-			} else {
+				/* FALLTHROUGH */
+			case CACHE_CLEAR:
+				oldCache = new File(dirFile, "_" + fileName);
+				oldCache.delete();
+				if (!catalogsFile.renameTo(oldCache)) {
+					catalogsFile.delete();
+					oldCache = null;
+				}
+				break;
+			case CACHE_LOAD:
 				goodCache = true;
+				break;
+			default:
+				throw new IllegalArgumentException("Invalid cacheMode value (" + cacheMode
+						+ ") in OPDSLinkReader.loadOPDSLinks method");
 			}
 		}