add get_label_text, use lambda function on switch_page, rename page_number variables

src/app/browser/main/tab.cpp

@@ -15,9 +15,9 @@ Tab::Tab()
     signal_switch_page().connect(
         [this](Gtk::Widget * page, guint page_num)
         {
-            on_switch(
-                page,
-                page_num
+            // Refresh window elements, e.g. tab label to header bar
+            activate_action(
+                "win.refresh"
             );
         }
     );
@@ -25,6 +25,26 @@ Tab::Tab()
 
 Tab::~Tab() = default;
 
+// Getters
+Glib::ustring Tab::get_label_text(
+    int page_number
+) {
+    auto page = get_nth_page(
+        page_number
+    );
+
+    if (page != nullptr)
+    {
+        return get_tab_label_text(
+            * get_nth_page(
+                page_number
+            )
+        );
+    }
+
+    return ""; // @TODO
+};
+
 // Actions
 void Tab::append(
     const char * request,
@@ -92,22 +112,17 @@ void Tab::close_all()
 }
 
 void Tab::update(
-    int number
+    int page_number
 ) {
     auto page = get_nth_page(
-        number
+        page_number
     );
 
+    if (page != nullptr)
+    {
         page->activate_action(
             "page.update"
         );
+    }
 
 } // @TODO
-
-// Events
-void Tab::on_switch(
-    Gtk::Widget * page,
-    guint page_num
-) {
-    // @TODO update header text
-}

src/app/browser/main/tab.hpp

@@ -2,24 +2,23 @@
 #define APP_BROWSER_MAIN_TAB_HPP
 
 #include <glibmm/i18n.h>
-#include <gtkmm/widget.h>
+#include <glibmm/ustring.h>
 #include <gtkmm/notebook.h>
 
 namespace app::browser::main
 {
     class Tab : public Gtk::Notebook
     {
-        void on_switch(
-            Gtk::Widget * page,
-            guint page_num
-        );
-
         public:
 
             Tab();
 
             ~Tab();
 
+            Glib::ustring get_label_text(
+                int page_number
+            );
+
             void append(
                 const char * request,
                 bool open,