On Startup: switch to online files if there are no local files

This change is only concerned with the startup behaviour. We switch to remote catalog if there no local files.

src/contentmanager.h

@@ -16,6 +16,7 @@ class ContentManager : public QObject
     Q_PROPERTY(QStringList bookIds READ getBookIds NOTIFY booksChanged)
     Q_PROPERTY(QStringList downloadIds READ getDownloadIds NOTIFY downloadsChanged)
     Q_PROPERTY(QString currentLanguage MEMBER m_currentLanguage WRITE setCurrentLanguage NOTIFY currentLangChanged)
+    Q_PROPERTY(bool isLocal MEMBER m_local READ isLocal WRITE setLocal NOTIFY localChanged)
 
 public:
     typedef QList<QPair<QString, QString>> LanguageList;
@@ -66,6 +67,7 @@ signals:
     void pendingRequest(const bool);
     void categoriesLoaded(QStringList);
     void languagesLoaded(LanguageList);
+    void localChanged(const bool);
 
 public slots:
     QStringList getTranslations(const QStringList &keys);

src/contentmanagerside.cpp

@@ -12,17 +12,19 @@ ContentManagerSide::ContentManagerSide(QWidget *parent) :
     mp_ui(new Ui::contentmanagerside)
 {
     mp_ui->setupUi(this);
-    connect(mp_ui->allFileButton, &QRadioButton::toggled,
-            this, [=](bool checked) { this->mp_contentManager->setLocal(!checked); });
-    connect(mp_ui->localFileButton, &QRadioButton::toggled,
-            this, [=](bool checked) { this->mp_contentManager->setLocal(checked); });
+    mp_ui->buttonGroup->setId(mp_ui->allFileButton, CatalogButtonId::ALL);
+    mp_ui->buttonGroup->setId(mp_ui->localFileButton, CatalogButtonId::LOCAL);
+    connect(mp_ui->buttonGroup, QOverload<QAbstractButton *>::of(&QButtonGroup::buttonClicked), [=](QAbstractButton *btn) {
+        const auto id = mp_ui->buttonGroup->id(btn);
+        mp_contentManager->setLocal(id == CatalogButtonId::LOCAL);
+    });
+
     connect(mp_ui->allFileButton, &QRadioButton::toggled,
             this, [=](bool checked) { mp_ui->allFileButton->setStyleSheet(
                     checked ? "*{font-weight: bold}" : "");});
     connect(mp_ui->localFileButton, &QRadioButton::toggled,
             this, [=](bool checked) { mp_ui->localFileButton->setStyleSheet(
                     checked ?"*{font-weight: bold}" : "");});
-    mp_ui->localFileButton->setStyleSheet("*{font-weight: bold}");
 
     mp_ui->allFileButton->setText(gt("online-files"));
     mp_ui->localFileButton ->setText(gt("local-files"));
@@ -105,6 +107,10 @@ ContentManagerSide::~ContentManagerSide()
 void ContentManagerSide::setContentManager(ContentManager *contentManager)
 {
     mp_contentManager = contentManager;
+    const auto isLocal = mp_contentManager->isLocal();
+    const auto checkedButton = mp_ui->buttonGroup->button(isLocal == CatalogButtonId::LOCAL);
+    checkedButton->setChecked(true);
+    checkedButton->setStyleSheet("*{font-weight: bold}");
     connect(mp_languageSelector, &QListWidget::itemSelectionChanged,
             this, [=]() {
                 auto item = mp_languageSelector->selectedItems().at(0);

src/contentmanagerside.h

@@ -16,6 +16,10 @@ class ContentManagerSide : public QWidget
     Q_OBJECT
 
 public:
+    enum CatalogButtonId {
+        ALL = 0,
+        LOCAL = 1
+    };
     explicit ContentManagerSide(QWidget *parent = 0);
     ~ContentManagerSide();
 

src/contentmanagerside.ui

@@ -79,6 +79,9 @@
         <property name="text">
          <string>All Files</string>
         </property>
+        <attribute name="buttonGroup">
+         <string notr="true">buttonGroup</string>
+        </attribute>
        </widget>
       </item>
       <item>
@@ -95,6 +98,9 @@
         <property name="checked">
          <bool>true</bool>
         </property>
+        <attribute name="buttonGroup">
+         <string notr="true">buttonGroup</string>
+        </attribute>
        </widget>
       </item>
       <item>
@@ -258,4 +264,7 @@
  </widget>
  <resources/>
  <connections/>
+ <buttongroups>
+  <buttongroup name="buttonGroup"/>
+ </buttongroups>
 </ui>

src/kiwixapp.cpp

@@ -64,6 +64,7 @@ void KiwixApp::init()
         gt("error-downloader-launch-message") + "<br><br>" + e.what());
     }
     mp_manager = new ContentManager(&m_library, mp_downloader);
+    mp_manager->setLocal(!m_library.getBookIds().isEmpty());
 
     auto icon = QIcon();
     icon.addFile(":/icons/kiwix-app-icons-square.svg");