Addressed libkiwix API changes

Fixed the build failure caused by the libkiwix API changes done in
kiwix/libkiwix#636.

src/contentmanager.cpp

@@ -50,7 +50,7 @@ QStringList ContentManager::getTranslations(const QStringList &keys)
 QStringList ContentManager::getBookInfos(QString id, const QStringList &keys)
 {
     QStringList values;
-    kiwix::Book* b = [=]()->kiwix::Book* {
+    const kiwix::Book* b = [=]()->const kiwix::Book* {
         try {
             return &mp_library->getBookById(id);
         } catch (...) {
@@ -137,7 +137,9 @@ QStringList ContentManager::updateDownloadInfos(QString id, const QStringList &k
     try {
         d = mp_downloader->getDownload(b.getDownloadId());
     } catch(...) {
-        b.setDownloadId("");
+        kiwix::Book bCopy(b);
+        bCopy.setDownloadId("");
+        mp_library->getKiwixLibrary().addOrUpdateBook(bCopy);
         mp_library->save();
         emit(mp_library->booksChanged());
         return values;
@@ -146,11 +148,13 @@ QStringList ContentManager::updateDownloadInfos(QString id, const QStringList &k
     d->updateStatus(true);
     if (d->getStatus() == kiwix::Download::K_COMPLETE) {
         QString tmp(QString::fromStdString(d->getPath()));
-        b.setPath(QDir::toNativeSeparators(tmp).toStdString());
-        b.setDownloadId("");
-        b.setPathValid(true);
+        kiwix::Book bCopy(b);
+        bCopy.setPath(QDir::toNativeSeparators(tmp).toStdString());
+        bCopy.setDownloadId("");
+        bCopy.setPathValid(true);
         // removing book url so that download link in kiwix-serve is not displayed.
-        b.setUrl("");
+        bCopy.setUrl("");
+        mp_library->getKiwixLibrary().addOrUpdateBook(bCopy);
         mp_library->save();
         mp_library->bookmarksChanged();
         if (!m_local) {
@@ -209,7 +213,7 @@ QString ContentManager::downloadBook(const QString &id)
 {
     if (!mp_downloader)
         return "";
-    auto& book = [&]()->kiwix::Book& {
+    const auto& book = [&]()->const kiwix::Book& {
         try {
             return m_remoteLibrary.getBookById(id.toStdString());
         } catch (...) {
@@ -233,8 +237,9 @@ QString ContentManager::downloadBook(const QString &id)
     } catch (std::exception& e) {
         return "";
     }
-    book.setDownloadId(download->getDid());
-    mp_library->addBookToLibrary(book);
+    kiwix::Book bookCopy(book);
+    bookCopy.setDownloadId(download->getDid());
+    mp_library->addBookToLibrary(bookCopy);
     mp_library->save();
     emit(oneBookChanged(id));
     return QString::fromStdString(download->getDid());

src/kiwixapp.cpp

@@ -15,47 +15,6 @@
 #include <thread>
 #include <QMessageBox>
 
-////////////////////////////////////////////////////////////////////////////////
-// KiwixApp::NameMapperProxy
-////////////////////////////////////////////////////////////////////////////////
-
-KiwixApp::NameMapperProxy::NameMapperProxy(kiwix::Library& lib)
-  : library(lib)
-{
-  update();
-}
-
-void KiwixApp::NameMapperProxy::update()
-{
-  const auto newNameMapper = new kiwix::HumanReadableNameMapper(library, false);
-  std::lock_guard<std::mutex> lock(mutex);
-  nameMapper.reset(newNameMapper);
-}
-
-KiwixApp::NameMapperProxy::NameMapperHandle
-KiwixApp::NameMapperProxy::currentNameMapper() const
-{
-  // Return a copy of the handle to the current NameMapper object. It will
-  // ensure that the object survives any call to NameMapperProxy::update()
-  // made before the completion of any pending operation on that object.
-  std::lock_guard<std::mutex> lock(mutex);
-  return nameMapper;
-}
-
-std::string KiwixApp::NameMapperProxy::getNameForId(const std::string& id)
-{
-  // Ensure that the current nameMapper object survives a concurrent call
-  // to NameMapperProxy::update()
-  return currentNameMapper()->getNameForId(id);
-}
-
-std::string KiwixApp::NameMapperProxy::getIdForName(const std::string& name)
-{
-  // Ensure that the current nameMapper object survives a concurrent call
-  // to NameMapperProxy::update()
-  return currentNameMapper()->getIdForName(name);
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // KiwixApp
 ////////////////////////////////////////////////////////////////////////////////
@@ -68,7 +27,7 @@ KiwixApp::KiwixApp(int& argc, char *argv[])
       mp_downloader(nullptr),
       mp_manager(nullptr),
       mp_mainWindow(nullptr),
-      m_nameMapper(m_library.getKiwixLibrary()),
+      m_nameMapper(m_library.getKiwixLibrary(), false),
       m_server(&m_library.getKiwixLibrary(), &m_nameMapper)
 {
     try {

src/kiwixapp.h

@@ -106,27 +106,6 @@ protected:
     void createAction();
     void postInit();
 
-private: // types
-  class NameMapperProxy : public kiwix::NameMapper {
-      typedef std::shared_ptr<kiwix::NameMapper> NameMapperHandle;
-    public:
-      explicit NameMapperProxy(kiwix::Library& library);
-
-      virtual std::string getNameForId(const std::string& id);
-      virtual std::string getIdForName(const std::string& name);
-
-      void update();
-
-    private:
-      NameMapperHandle currentNameMapper() const;
-
-    private:
-      mutable std::mutex mutex;
-      kiwix::Library& library;
-      NameMapperHandle nameMapper;
-  };
-
-
 private:
     QTranslator m_qtTranslator, m_appTranslator;
     SettingsManager m_settingsManager;
@@ -139,7 +118,7 @@ private:
     TabBar* mp_tabWidget;
     SideBarType m_currentSideType;
     QErrorMessage* mp_errorDialog;
-    NameMapperProxy m_nameMapper;
+    kiwix::UpdatableNameMapper m_nameMapper;
     kiwix::Server m_server;
     Translation m_translation;
 

src/library.cpp

@@ -9,7 +9,9 @@
 class LibraryManipulator: public kiwix::LibraryManipulator {
   public:
     LibraryManipulator(Library* p_library)
-        : mp_library(p_library) {}
+        : kiwix::LibraryManipulator(&p_library->getKiwixLibrary())
+        , mp_library(p_library)
+    {}
     virtual ~LibraryManipulator() {}
     bool addBookToLibrary(kiwix::Book book) {
         auto ret = mp_library->m_library.addBook(book);
@@ -118,7 +120,7 @@ void Library::save()
     m_library.writeBookmarksToFile(kiwix::appendToDirectory(m_libraryDirectory.toStdString(), "library.bookmarks.xml"));
 }
 
-kiwix::Book &Library::getBookById(QString id)
+const kiwix::Book &Library::getBookById(QString id) const
 {
     return m_library.getBookById(id.toStdString());
 }

src/library.h

@@ -40,7 +40,7 @@ public:
     void save();
     kiwix::Library& getKiwixLibrary() { return m_library; }
 public slots:
-    kiwix::Book& getBookById(QString id);
+    const kiwix::Book& getBookById(QString id) const;
 
 signals:
     void booksChanged();

src/urlschemehandler.cpp

@@ -78,8 +78,8 @@ UrlSchemeHandler::handleMetaRequest(QWebEngineUrlRequestJob* request)
 
 
 class IdNameMapper : public kiwix::NameMapper {
-  std::string getNameForId(const std::string& id) { return id + ".zim"; }
-  std::string getIdForName(const std::string& id) { return id.substr(0, id.size()-4); }
+  std::string getNameForId(const std::string& id) const { return id + ".zim"; }
+  std::string getIdForName(const std::string& id) const { return id.substr(0, id.size()-4); }
 };