draft welcome dialog with profile selection

src/app/browser/welcome.rs

@@ -0,0 +1,30 @@
+mod widget;
+use widget::Widget;
+
+use crate::profile::Profile;
+use gtk::prelude::IsA;
+use std::rc::Rc;
+
+pub struct Welcome {
+    profile: Rc<Profile>,
+    widget: Rc<Widget>,
+}
+
+impl Welcome {
+    // Construct
+
+    /// Create new `Self` for given Profile
+    pub fn new(profile: Rc<Profile>) -> Self {
+        Self {
+            profile,
+            widget: Rc::new(Widget::new()),
+        }
+    }
+
+    // Actions
+
+    /// Show dialog for parent [Window](https://docs.gtk.org/gtk4/class.Window.html)
+    pub fn present(&self, parent: Option<&impl IsA<gtk::Widget>>) {
+        self.widget.present(parent);
+    }
+}

src/app/browser/welcome/widget.rs

@@ -0,0 +1,47 @@
+use adw::{
+    prelude::{AdwDialogExt, AlertDialogExtManual},
+    AlertDialog,
+};
+use gtk::prelude::IsA;
+
+const HEADING: &str = "Welcome!";
+const BODY: &str = "Select profile for browser data";
+const RESPONSE_QUIT: (&str, &str) = ("quit", "Quit");
+const RESPONSE_CREATE: (&str, &str) = ("create", "Create new profile");
+
+pub struct Widget {
+    gobject: AlertDialog,
+}
+
+impl Widget {
+    // Constructors
+
+    /// Create new `Self`
+    pub fn new() -> Self {
+        // Init gobject
+        let gobject = AlertDialog::builder()
+            .heading(HEADING)
+            .body(BODY)
+            .default_response(RESPONSE_QUIT.1)
+            .build();
+
+        gobject.add_responses(&[RESPONSE_QUIT, RESPONSE_CREATE]);
+
+        // Return new `Self`
+        Self { gobject }
+    }
+
+    // Actions
+
+    /// Show dialog for parent [Window](https://docs.gtk.org/gtk4/class.Window.html)
+    pub fn present(&self, parent: Option<&impl IsA<gtk::Widget>>) {
+        self.gobject.present(parent);
+    }
+
+    /* @TODO not in use
+    /// Get reference to GObject
+    ///
+    pub fn gobject(&self) -> &AlertDialog {
+        &self.gobject
+    } */
+}