Parity with original tutorial

src/main.rs

@@ -22,6 +22,35 @@ impl Default for AboutDialog {
     }
 }
 
+impl Component for AboutDialog {
+    type Message = ();
+    type Properties = ();
+
+    fn view(&self) -> VNode<Self> {
+        gtk! {
+            <Dialog::new_with_buttons(
+                Some("About The Todo List"),
+                None as Option<&Window>,
+                DialogFlags::MODAL,
+                &[("Ok", ResponseType::Ok)]
+            )>
+                <Box spacing=10 orientation=Orientation::Vertical>
+                    <Image pixbuf=Some(self.dog.clone()) />
+                    <Label markup="<big><b>A Very Nice Todo List</b></big>" />
+                    <Label markup=r#"made with <a href="http://vgtk.rs/">vgtk</a> by me"# />
+                </Box>
+            </Dialog>
+        }
+    }
+}
+
+impl AboutDialog {
+    #[allow(unused_must_use)]
+    fn run() {
+        vgtk::run_dialog::<AboutDialog>(vgtk::current_window().as_ref());
+    }
+}
+
 #[derive(Clone, Debug, Default)]
 pub struct Radio {
     pub labels: &'static [&'static str],
@@ -203,7 +232,10 @@ impl Component for Model {
                 self.tasks.retain(|task| !task.done);
                 UpdateAction::Render
             }
-            Message::About => UpdateAction::None,
+            Message::About => {
+                AboutDialog::run();
+                UpdateAction::None
+            }
         }
     }