qt: introduce `SortMenuAlbums`

Which contains an action that toggles album sections.

modules/gui/qt/menus/qml_menu_wrapper.cpp

@@ -215,6 +215,25 @@ void SortMenuVideo::onPopup(QMenu * menu) /* override */
     }
 }
 
+void SortMenuAlbums::onPopup(QMenu *menu)
+{
+    if (!m_sectionsVisible)
+        return;
+
+    assert(m_ctx);
+    assert(menu);
+
+    menu->addSeparator();
+
+    QAction *action = menu->addAction(qtr("Album sections"));
+    action->setCheckable(true);
+    action->setChecked(m_ctx->albumSections());
+    connect(action, &QAction::toggled, this, [this] (bool enabled) {
+        if (Q_LIKELY(m_ctx))
+            m_ctx->setAlbumSections(enabled);
+    });
+}
+
 QmlGlobalMenu::QmlGlobalMenu(QObject *parent)
     : VLCMenuBar(parent)
 {

modules/gui/qt/menus/qml_menu_wrapper.hpp

@@ -135,6 +135,16 @@ signals:
     void grouping(MainCtx::Grouping grouping);
 };
 
+class SortMenuAlbums : public SortMenu
+{
+    Q_OBJECT
+
+    SIMPLE_MENU_PROPERTY(bool, sectionsVisible, false)
+
+protected:
+    void onPopup(QMenu * menu) override;
+};
+
 //inherit VLCMenuBar so we can access menu creation functions
 class QmlGlobalMenu : public VLCMenuBar
 {