Don't do seafile stuff unless signed in.

src/internet/seafileservice.cpp

@@ -53,20 +53,9 @@ SeafileService::SeafileService(Application* app, InternetModel* parent)
 }
 
 bool SeafileService::has_credentials() const {
-  return !access_token().isEmpty();
-}
-
-bool SeafileService::is_authenticated() const {
   return !access_token_.isEmpty();
 }
 
-QString SeafileService::access_token() const {
-  QSettings s;
-  s.beginGroup(kSettingsGroup);
-
-  return s.value("access_token").toString();
-}
-
 void SeafileService::AddAuthorizationHeader(QNetworkRequest* request) const {
   request->setRawHeader("Authorization",
                         QString("Token %1").arg(access_token_).toAscii());
@@ -177,7 +166,7 @@ void SeafileService::ChangeLibrary(const QString& new_library) {
 }
 
 void SeafileService::Connect() {
-  if (is_authenticated()) {
+  if (has_credentials()) {
     UpdateLibraries();
   } else {
     ShowSettingsDialog();

src/internet/seafileservice.h

@@ -48,7 +48,7 @@ class SeafileService : public CloudFileService {
   static const char* kServiceName;
   static const char* kSettingsGroup;
 
-  virtual bool has_credentials() const;
+  bool has_credentials() const;
   QUrl GetStreamingUrlFromSongId(const QString& library,
                                  const QString& filepath);
   // Get the token for an user (simple rest api)
@@ -100,9 +100,6 @@ signals:
                                    const QString& mime_type);
 
  private:
-  QString access_token() const;
-  bool is_authenticated() const;
-
   void AddAuthorizationHeader(QNetworkRequest* request) const;
 
   void UpdateLibraries();

src/internet/seafilesettingspage.cpp

@@ -108,8 +108,10 @@ void SeafileSettingsPage::Save() {
   s.setValue("library", id);
   // Don't need to save the password
 
+  if (service_->has_credentials()) {
     service_->ChangeLibrary(id);
   }
+}
 
 void SeafileSettingsPage::Login() {
   ui_->login_button->setEnabled(false);