feat(egui): add `Help > Online Documentation` menu button

locales/en-US/main.ftl

@@ -2,6 +2,8 @@
 
 tr-menu-debug = Debug
 
+##
+
 tr-menu-file = File
 tr-menu-file-open = Open
 tr-menu-open-specctra-session-file = Specctra session file
@@ -31,6 +33,9 @@ tr-menu-place-place-via = Place Via
 tr-menu-route = Route
 tr-menu-route-autoroute = Autoroute
 
+tr-menu-help = Help
+tr-menu-help-online-documentation = Online Documentation
+
 # Misnamed tag, TODO fix this.
 tr-menu-options = Options
 

src/bin/topola-egui/action.rs

@@ -37,6 +37,10 @@ impl Trigger {
         self.triggered = ui.button(self.action.widget_text()).clicked();
     }
 
+    pub fn hyperlink(&mut self, _ctx: &egui::Context, ui: &mut egui::Ui, url: &str) {
+        ui.hyperlink_to(self.action.widget_text(), url);
+    }
+
     pub fn consume_key_triggered(&mut self, ctx: &egui::Context, ui: &mut egui::Ui) -> bool {
         self.consume_key(ctx, ui);
         self.triggered()

src/bin/topola-egui/menu_bar.rs

@@ -125,6 +125,11 @@ impl MenuBar {
             egui::Modifiers::NONE,
             egui::Key::Plus,
         ));
+        let mut online_documentation = Trigger::new(Action::new(
+            tr.text("tr-menu-help-online-documentation"),
+            egui::Modifiers::NONE,
+            egui::Key::F1,
+        ));
 
         let workspace_activities_enabled = match &maybe_workspace {
             Some(w) => w
@@ -258,6 +263,14 @@ impl MenuBar {
                         });
                     });
 
+                    ui.menu_button(tr.text("tr-menu-help"), |ui| {
+                        online_documentation.hyperlink(
+                            ctx,
+                            ui,
+                            "https://topola.codeberg.page/doc/",
+                        );
+                    });
+
                     ui.separator();
 
                     egui::widgets::global_theme_preference_buttons(ui);